"Fixation," "fixation device," "fastener," or "fastener system" refers to an apparatus, instrument, structure, device, component, member, system, assembly, step, process, or module that is structured, configured, designed, arranged, or engineered to connect, join, engage, or couple two or more structures, either permanently or temporarily. The connected structures may be manmade and/or biological and may include hard tissues such as bone, teeth, or similar materials, as well as soft tissues such as ligaments, cartilage, tendons, or similar biological structures. In certain embodiments, fixation or fastening serves to secure two structures in a desired position and/or orientation, redistribute load or stress, maintain a desired level of tension or compression, and/or reduce relative motion between connected components. A fixation device or fastener may be made of metal, plastic, composite materials, metal alloys, plastic composites, biocompatible materials, biodegradable materials, or other suitable materials. In some embodiments, a fixation device or fastener may be part of a fastener system that includes two or more structures that work together to function as a fastening mechanism. For example, a fastener system may include a rod or shaft having external threads and an opening or bore within another structure having corresponding internal threads configured to engage the external threads of the rod or shaft. Fixation devices and fasteners may be used in internal or external fixation applications and may include, but are not limited to: screws, bone screws, set screws, rivets, bolts, nails, pins, Kirschner wires (K-wires), anchors, bone anchors, plates, bone plates, posts, thumb screws, nuts, intramedullary nails, rods, implants, sutures, soft sutures, soft anchors, tethers, interbody cages, fusion cages, staples, bone staples, hook-and-loop mechanisms, snaps, and similar structures. In certain embodiments, a fastener may include an adjective identifying an object or structure that the fastener is particularly configured, designed, or engineered to engage, connect, or couple with. For example, a "bone fastener" may refer to an apparatus for joining or connecting one or more bones, one or more bone portions, soft tissue and a bone or bone portion, hard tissue and a bone or bone portion, or an apparatus and a bone or portion of bone. In certain embodiments, a fastener may be a temporary fastener, meaning that the fastener is configured to serve a fastening function for a relatively short period of time. A temporary fastener may be used until another procedure or operation is completed and/or until a particular event occurs. A temporary fastener may be designed for removal by a user or may be configured to disengage due to an external event, structural change, or mechanical interaction. … more "Fixation," "fixation device," "fastener," or "fastener system" refers to an apparatus, instrument, structure, device, component, member, system, assembly, step, process, or module that is structured, configured, designed, arranged, or engineered to connect, join, engage, or couple two or more structures, either permanently or temporarily. The connected structures may be manmade and/or biological and may include hard tissues such as bone, teeth, or similar materials, as well as soft tissues such as ligaments, cartilage, tendons, or similar biological structures. In certain embodiments, fixation or fastening serves to secure two structures in a desired position and/or orientation, redistribute load or stress, maintain a desired level of tension or compression, and/or reduce relative motion between connected components. A fixation device or fastener may be made of metal, plastic, composite materials, metal alloys, plastic composites, biocompatible materials, biodegradable materials, or other suitable materials. In some embodiments, a fixation device or fastener may be part of a fastener system that includes two or more structures that work together to function as a fastening mechanism. For example, a fastener system may include a rod or shaft having external threads and an opening or bore within another structure having corresponding internal threads configured to engage the external threads of the rod or shaft. Fixation devices and fasteners may be used in internal or external fixation applications and may include, but are not limited to: screws, bone screws, set screws, rivets, bolts, nails, pins, Kirschner wires (K-wires), anchors, bone anchors, plates, bone plates, posts, thumb screws, nuts, intramedullary nails, rods, implants, sutures, soft sutures, soft anchors, tethers, interbody cages, fusion cages, staples, bone staples, hook-and-loop mechanisms, snaps, and similar structures. In certain embodiments, a fastener may include an adjective identifying an object or structure that the fastener is particularly configured, designed, or engineered to engage, connect, or couple with. For example, a "bone fastener" may refer to an apparatus for joining or connecting one or more bones, one or more bone portions, soft tissue and a bone or bone portion, hard tissue and a bone or bone portion, or an apparatus and a bone or portion of bone. In certain embodiments, a fastener may be a temporary fastener, meaning that the fastener is configured to serve a fastening function for a relatively short period of time. A temporary fastener may be used until another procedure or operation is completed and/or until a particular event occurs. A temporary fastener may be designed for removal by a user or may be configured to disengage due to an external event, structural change, or mechanical interaction.

"Rasp feature," as used herein, refers to a feature and/or a structural component of a cutting instrument, such as a rasp and/or rasp blade, or the like configured to abrade, grind, shape, contour, or refine surfaces during a procedure. The rasp feature enhances the cutting instrument’s versatility by enabling both precise cutting and controlled surface sculpting. In some embodiments, the rasp feature comprises a plurality of raised protrusions, serrations, ridges, or teeth disposed along at least a portion of an instrument’s working surface, such as a planar surface, an edge, a distal end, a distal surface, and/or a lateral face thereof. These protrusions may be arranged in a pattern, such as linear rows, arcuate rows, a grid, or an irregular array, and are sized and shaped to remove material incrementally through frictional engagement, thereby smoothing and/or contouring the surface rather than solely incising the surface. For example, the rasp feature may include teeth or protrusions with a height ranging from approximately about 0.1 mm to about 2 mm and a spacing of approximately about 0.5 mm to about 5 mm, though other dimensions are contemplated depending on the intended application. Alternatively, the rasp feature may be embodied as a textured surface, such as a roughened, etched, or grit-coated area, applied to the instrument’s working surface to facilitate abrasion through microscopic or macroscopic surface irregularities. Such a textured surface may be achieved, for instance, through chemical etching, laser texturing, or the application of an abrasive coating, providing a uniform or patterned roughness with a surface roughness average (Ra) ranging from approximately 0.5 µm to 50 µm, depending on the desired abrasiveness. The rasp feature, whether formed as protrusions, serrations, teeth, or a textured surface, may be integrally formed with the instrument body, such as through machining, molding, or surface treatment, or may be a distinct element affixed thereto, such as a coated abrasive layer. This flexibility in construction allows the rasp feature to be adapted to various manufacturing processes and instrument designs, supporting a range of applications where both cutting and/or surface refinement are desired. … more "Rasp feature," as used herein, refers to a feature and/or a structural component of a cutting instrument, such as a rasp and/or rasp blade, or the like configured to abrade, grind, shape, contour, or refine surfaces during a procedure. The rasp feature enhances the cutting instrument’s versatility by enabling both precise cutting and controlled surface sculpting. In some embodiments, the rasp feature comprises a plurality of raised protrusions, serrations, ridges, or teeth disposed along at least a portion of an instrument’s working surface, such as a planar surface, an edge, a distal end, a distal surface, and/or a lateral face thereof. These protrusions may be arranged in a pattern, such as linear rows, arcuate rows, a grid, or an irregular array, and are sized and shaped to remove material incrementally through frictional engagement, thereby smoothing and/or contouring the surface rather than solely incising the surface. For example, the rasp feature may include teeth or protrusions with a height ranging from approximately about 0.1 mm to about 2 mm and a spacing of approximately about 0.5 mm to about 5 mm, though other dimensions are contemplated depending on the intended application. Alternatively, the rasp feature may be embodied as a textured surface, such as a roughened, etched, or grit-coated area, applied to the instrument’s working surface to facilitate abrasion through microscopic or macroscopic surface irregularities. Such a textured surface may be achieved, for instance, through chemical etching, laser texturing, or the application of an abrasive coating, providing a uniform or patterned roughness with a surface roughness average (Ra) ranging from approximately 0.5 µm to 50 µm, depending on the desired abrasiveness. The rasp feature, whether formed as protrusions, serrations, teeth, or a textured surface, may be integrally formed with the instrument body, such as through machining, molding, or surface treatment, or may be a distinct element affixed thereto, such as a coated abrasive layer. This flexibility in construction allows the rasp feature to be adapted to various manufacturing processes and instrument designs, supporting a range of applications where both cutting and/or surface refinement are desired.

"Fine rasp feature" refers to a rasp feature or a set of rasp features that are configured to remove a target material at a slower rate than a coarse rasp feature or non coarse rasp feature while producing a smoother surface finish. A fine rasp feature may remove smaller portions of the target material due to decreased spacing, shallower depth, or less aggressive geometry of the rasp structure. The material removal may occur in finer particles, shavings, or dust, depending on the geometry of the rasp feature and the properties of the target material. A fine rasp feature may be used for applications requiring precise material removal and improved surface refinement and may be selected based on the desired balance between cutting efficiency and surface finish quality. … more "Fine rasp feature" refers to a rasp feature or a set of rasp features that are configured to remove a target material at a slower rate than a coarse rasp feature or non coarse rasp feature while producing a smoother surface finish. A fine rasp feature may remove smaller portions of the target material due to decreased spacing, shallower depth, or less aggressive geometry of the rasp structure. The material removal may occur in finer particles, shavings, or dust, depending on the geometry of the rasp feature and the properties of the target material. A fine rasp feature may be used for applications requiring precise material removal and improved surface refinement and may be selected based on the desired balance between cutting efficiency and surface finish quality.

"Coarse rasp feature" refers to a rasp feature or a set of rasp features that are configured to remove a target material at a faster rate than a non-coarse rasp feature. A coarse rasp feature may remove larger portions of the target material due to increased spacing, depth, or aggressiveness of the rasp feature. The material removal may occur in larger fragments, chips, or sections, depending on the geometry of the rasp feature and the properties of the target material. A coarse rasp feature may be used for applications requiring rapid material removal and may be selected based on the desired balance between speed and surface finish quality. … more "Coarse rasp feature" refers to a rasp feature or a set of rasp features that are configured to remove a target material at a faster rate than a non-coarse rasp feature. A coarse rasp feature may remove larger portions of the target material due to increased spacing, depth, or aggressiveness of the rasp feature. The material removal may occur in larger fragments, chips, or sections, depending on the geometry of the rasp feature and the properties of the target material. A coarse rasp feature may be used for applications requiring rapid material removal and may be selected based on the desired balance between speed and surface finish quality.

"Surface contouring" refers to a process, technique, or action that modifies, shapes, or refines a target material by removing, displacing, compressing, or otherwise altering portions of the material to achieve a desired surface profile and/or contour. Surface contouring may involve controlled removal or deformation of material to form specific geometric features, textures, or patterns. The modifications may include forming planar surfaces, curved surfaces, angled surfaces, stepped surfaces, recessed features, raised features, or any other structural variation in the target material. Surface contouring may be performed using cutting, abrading, rasping, grinding, carving, shaving, pressing, or similar mechanical, chemical, thermal, or other material-altering techniques. The process may be applied to a wide range of materials, including biological tissues such as bone, cartilage, or soft tissue, as well as non-biological materials such as metals, polymers, ceramics, composites, or natural materials. Surface contouring may be executed manually, semi-automatically, or automatically using tools, instruments, machines, or robotic systems specifically configured to modify the surface of the target material in a controlled manner. … more "Surface contouring" refers to a process, technique, or action that modifies, shapes, or refines a target material by removing, displacing, compressing, or otherwise altering portions of the material to achieve a desired surface profile and/or contour. Surface contouring may involve controlled removal or deformation of material to form specific geometric features, textures, or patterns. The modifications may include forming planar surfaces, curved surfaces, angled surfaces, stepped surfaces, recessed features, raised features, or any other structural variation in the target material. Surface contouring may be performed using cutting, abrading, rasping, grinding, carving, shaving, pressing, or similar mechanical, chemical, thermal, or other material-altering techniques. The process may be applied to a wide range of materials, including biological tissues such as bone, cartilage, or soft tissue, as well as non-biological materials such as metals, polymers, ceramics, composites, or natural materials. Surface contouring may be executed manually, semi-automatically, or automatically using tools, instruments, machines, or robotic systems specifically configured to modify the surface of the target material in a controlled manner.

"Surface contouring blade" refers to a cutting, rasping, or abrading instrument configured to modify, shape, or refine a target surface through controlled and/or precise material removal. A surface contouring blade may be designed to engage a variety of materials, including biological tissues such as bone, cartilage, soft tissue, or the like as well as non-biological materials in industrial or manufacturing applications. A surface contouring blade may include one or more cutting edges, a cutting face, set of cutting or abrading teeth, abrading surfaces, rasp features, or contouring structures arranged to facilitate precise and controlled surface modification. In certain embodiments, a surface contouring blade may be configured for use with a powered oscillation handpiece, rotary tool, or manual instrument, wherein the motion of the surface contouring blade influences the manner in which material is removed. The shape, size, and orientation of the surface contouring blade and its cutting or abrading features may be selected to optimize engagement with a target surface, ensuring controlled depth of cut, uniformity, and procedural accuracy. A surface contouring blade may include specialized geometries, such as curved, angled, or stepped configurations, to accommodate specific contouring requirements. A surface contouring blade may be manufactured from various materials, including but not limited to stainless steel, titanium, carbide, or composite materials, selected based on factors such as durability, cutting efficiency, and resistance to wear. The design of a surface contouring blade may be tailored for specific applications, such as orthopedic surgery, dental procedures, woodworking, or precision machining, where controlled surface modification is required. … more "Surface contouring blade" refers to a cutting, rasping, or abrading instrument configured to modify, shape, or refine a target surface through controlled and/or precise material removal. A surface contouring blade may be designed to engage a variety of materials, including biological tissues such as bone, cartilage, soft tissue, or the like as well as non-biological materials in industrial or manufacturing applications. A surface contouring blade may include one or more cutting edges, a cutting face, set of cutting or abrading teeth, abrading surfaces, rasp features, or contouring structures arranged to facilitate precise and controlled surface modification. In certain embodiments, a surface contouring blade may be configured for use with a powered oscillation handpiece, rotary tool, or manual instrument, wherein the motion of the surface contouring blade influences the manner in which material is removed. The shape, size, and orientation of the surface contouring blade and its cutting or abrading features may be selected to optimize engagement with a target surface, ensuring controlled depth of cut, uniformity, and procedural accuracy. A surface contouring blade may include specialized geometries, such as curved, angled, or stepped configurations, to accommodate specific contouring requirements. A surface contouring blade may be manufactured from various materials, including but not limited to stainless steel, titanium, carbide, or composite materials, selected based on factors such as durability, cutting efficiency, and resistance to wear. The design of a surface contouring blade may be tailored for specific applications, such as orthopedic surgery, dental procedures, woodworking, or precision machining, where controlled surface modification is required.

“Inclination Curve” refers to a structural transition that defines a smooth, continuous, stepped, or graded curvature between two connected components of an osteoplasty tool, bone rasp, or other instrument, wherein the curvature directs a working surface upward relative to a longitudinal axis of a body portion. An inclination curve may take the form of an arcuate, parabolic, filleted, or otherwise contoured transition, or the like, and may function to position, support, or align one component relative to another while maintaining structural integrity and facilitating engagement with a target surface. … more “Inclination Curve” refers to a structural transition that defines a smooth, continuous, stepped, or graded curvature between two connected components of an osteoplasty tool, bone rasp, or other instrument, wherein the curvature directs a working surface upward relative to a longitudinal axis of a body portion. An inclination curve may take the form of an arcuate, parabolic, filleted, or otherwise contoured transition, or the like, and may function to position, support, or align one component relative to another while maintaining structural integrity and facilitating engagement with a target surface.

“Inclination Angle” refers to an angle that directs a structural component, such as a foot, cutting face, cutting teeth, rasp feature, abrading surface, working surface, set of bone-engagement features, or the like, upward relative to a longitudinal axis of an osteoplasty tool, bone rasp, or other instrument. An inclination angle may be established by an angle feature and may govern the positioning of the structural component relative to the instrument’s main body to optimize engagement with a target surface. Inclination angles may be selected to enhance procedural access, improve cutting or shaping efficiency, improve visibility, or control material removal rates. Examples include the orientation of rasp features on a rasp blade, a cutting edge on a saw blade, or an abrading surface on a burr, or the like. … more “Inclination Angle” refers to an angle that directs a structural component, such as a foot, cutting face, cutting teeth, rasp feature, abrading surface, working surface, set of bone-engagement features, or the like, upward relative to a longitudinal axis of an osteoplasty tool, bone rasp, or other instrument. An inclination angle may be established by an angle feature and may govern the positioning of the structural component relative to the instrument’s main body to optimize engagement with a target surface. Inclination angles may be selected to enhance procedural access, improve cutting or shaping efficiency, improve visibility, or control material removal rates. Examples include the orientation of rasp features on a rasp blade, a cutting edge on a saw blade, or an abrading surface on a burr, or the like.

"Angle feature" refers broadly to a structural component of a cutting instrument and/or abrading instrument that connects and/or positions a cutting face, cutting structure, abrading feature, contouring feature(s), rasp feature(s), or the like relative to the instrument’s main body and/or operational axis. In one embodiment, an angle feature can be configured to orient such features at a non-zero angle relative to a longitudinal axis of an instrument's main body to facilitate effective engagement with a target surface during a procedure (e.g., a surgical procedure), enhancing the instrument’s versatility across a range of applications, including but not limited to surgical, industrial, or material-shaping tasks. This angle feature may take various forms to achieve the desired angular orientation, accommodating diverse designs and implementations while ensuring functional alignment with the instrument’s intended purpose. In certain embodiments, such as with a rasp blade configured for shaping a bone surface, the angle feature can refer to a structural component that connects a body to a foot and can establish an acute angle between a planar inferior side of the foot and a longitudinal axis of the body. The angle feature can be configured to position the foot relative to the body such that the rasp features on the planar inferior side can effectively engage and shape a bone surface during operation, such as when coupled to a powered oscillation handpiece via an oscillation mount. This angle feature may be implemented in various forms to achieve the desired angular orientation, including, but not limited to, a curved transition, a linear segment, a stepped configuration, a flexible linkage, and/or a pivotable junction, each adapted to transmit oscillatory motion from the body to the foot while maintaining structural integrity. In some embodiments, the angle feature may comprise a curved transition, such as an arcuate bend or fillet, integrally formed between the body and the foot, providing a smooth shift in orientation with a radius of curvature that may range, for example, from approximately 2 mm to 10 mm, depending on the intended application. Alternatively or in addition, the angle feature may be embodied as a linear segment, such as an angled arm or extension, connecting the body to the foot at a fixed acute angle. The acute angle provided by the angle feature may vary, for instance, from about 30 degrees to about 60 degrees relative to the longitudinal axis, to optimize access to target surfaces. In other embodiments, the angle feature may include a stepped configuration, characterized by one or more discrete angular shifts or terraces between the body and the foot, such a configuration may enhance stability and/or provide multiple working angles within a single structure. Additionally, the angle feature may be implemented as a flexible linkage, such as a resilient material or segmented joint, allowing dynamic flexure during use, or as a pivotable junction, such as a hinge or ball-and-socket mechanism with a pivot lock mechanism, permitting adjustable angular positioning of the foot relative to the body, with an angular range that may span, for example, from 0 degrees (aligned with the longitudinal axis) to 89 degrees. The angle feature may be integrally formed with the body and/or foot, such as through machining, molding, or forging of a unitary material (e.g., stainless steel, titanium), or it may comprise a separate component affixed thereto, such as by welding, adhesive bonding, and/or mechanical fastening. The specific design of the angle feature, including its shape, size, and angle, may be selected based on factors such as the type of surface to be engaged, the motion characteristics of the cutting instrument, and/or ergonomic considerations for the user. Regardless of its form, the angle feature ensures that the cutting face, abrading feature, rasp feature(s), or similar elements are oriented to cut, abrade, grind, shape, or refine surfaces effectively, enhancing the instrument’s utility across diverse procedures. … more "Angle feature" refers broadly to a structural component of a cutting instrument and/or abrading instrument that connects and/or positions a cutting face, cutting structure, abrading feature, contouring feature(s), rasp feature(s), or the like relative to the instrument’s main body and/or operational axis. In one embodiment, an angle feature can be configured to orient such features at a non-zero angle relative to a longitudinal axis of an instrument's main body to facilitate effective engagement with a target surface during a procedure (e.g., a surgical procedure), enhancing the instrument’s versatility across a range of applications, including but not limited to surgical, industrial, or material-shaping tasks. This angle feature may take various forms to achieve the desired angular orientation, accommodating diverse designs and implementations while ensuring functional alignment with the instrument’s intended purpose. In certain embodiments, such as with a rasp blade configured for shaping a bone surface, the angle feature can refer to a structural component that connects a body to a foot and can establish an acute angle between a planar inferior side of the foot and a longitudinal axis of the body. The angle feature can be configured to position the foot relative to the body such that the rasp features on the planar inferior side can effectively engage and shape a bone surface during operation, such as when coupled to a powered oscillation handpiece via an oscillation mount. This angle feature may be implemented in various forms to achieve the desired angular orientation, including, but not limited to, a curved transition, a linear segment, a stepped configuration, a flexible linkage, and/or a pivotable junction, each adapted to transmit oscillatory motion from the body to the foot while maintaining structural integrity. In some embodiments, the angle feature may comprise a curved transition, such as an arcuate bend or fillet, integrally formed between the body and the foot, providing a smooth shift in orientation with a radius of curvature that may range, for example, from approximately 2 mm to 10 mm, depending on the intended application. Alternatively or in addition, the angle feature may be embodied as a linear segment, such as an angled arm or extension, connecting the body to the foot at a fixed acute angle. The acute angle provided by the angle feature may vary, for instance, from about 30 degrees to about 60 degrees relative to the longitudinal axis, to optimize access to target surfaces. In other embodiments, the angle feature may include a stepped configuration, characterized by one or more discrete angular shifts or terraces between the body and the foot, such a configuration may enhance stability and/or provide multiple working angles within a single structure. Additionally, the angle feature may be implemented as a flexible linkage, such as a resilient material or segmented joint, allowing dynamic flexure during use, or as a pivotable junction, such as a hinge or ball-and-socket mechanism with a pivot lock mechanism, permitting adjustable angular positioning of the foot relative to the body, with an angular range that may span, for example, from 0 degrees (aligned with the longitudinal axis) to 89 degrees. The angle feature may be integrally formed with the body and/or foot, such as through machining, molding, or forging of a unitary material (e.g., stainless steel, titanium), or it may comprise a separate component affixed thereto, such as by welding, adhesive bonding, and/or mechanical fastening. The specific design of the angle feature, including its shape, size, and angle, may be selected based on factors such as the type of surface to be engaged, the motion characteristics of the cutting instrument, and/or ergonomic considerations for the user. Regardless of its form, the angle feature ensures that the cutting face, abrading feature, rasp feature(s), or similar elements are oriented to cut, abrade, grind, shape, or refine surfaces effectively, enhancing the instrument’s utility across diverse procedures.

"Abrading feature," as used herein, refers to a feature and/or a structural component of an instrument, such as an abrader, abrading blade, burr, file, rasp, rasp blade, or similar tool, configured to remove, smooth, shape, contour, or refine surfaces through abrasion or cutting during a procedure. The abrading feature enhances the instrument’s functionality by enabling controlled material removal and/or surface modification, which may be used to complement cutting and/or shaping operations. In some embodiments, the abrading feature comprises a plurality of raised elements, cutting features, spikes, abrasive edges, edges, teeth, ridges, and/or particulate-coated regions disposed along at least a portion of an instrument’s working surface, such as a planar surface, an edge, a distal end, a distal surface, a side, a planar side, and/or a lateral face thereof. These elements may be arranged in a linear, arcuate, radial, grid-like, regular, or irregular patterns and are dimensioned to incrementally remove material through frictional engagement. In one embodiment, the abrading feature may smooth or contour a surface rather than incising it, enabling controlled reshaping without excessive material loss. For example, the abrading feature may include raised abrasive elements with a height ranging from approximately 0.1 mm to 2 mm and a spacing of approximately 0.5 mm to 5 mm, though other dimensions are contemplated based on the intended application. Alternatively, the abrading feature may be embodied as a textured or grit-coated surface, including a roughened, etched, micro-patterned, or abrasive-coated area applied to the instrument’s working surface to enhance material removal efficiency. Such a textured surface may be achieved through chemical etching, laser structuring, abrasive blasting, or the application of bonded abrasive materials, yielding a uniform or patterned roughness with a surface roughness average (Ra) ranging from approximately 0.5 µm to 50 µm, depending on the desired level of abrasiveness. The abrading feature, whether formed as raised elements, cutting features, ridges, abrasive teeth, particulate coatings, or a textured surface, may be integrally formed with the instrument body through machining, molding, laser structuring, or deposition processes or may be a separately applied or affixed element, such as an abrasive-coated layer, bonded grit structure, or modular insert. This flexibility in construction allows the abrading feature to be adapted to various manufacturing processes, material compositions, and instrument designs, supporting a range of applications where controlled abrasion, contouring, and surface refinement are required. … more "Abrading feature," as used herein, refers to a feature and/or a structural component of an instrument, such as an abrader, abrading blade, burr, file, rasp, rasp blade, or similar tool, configured to remove, smooth, shape, contour, or refine surfaces through abrasion or cutting during a procedure. The abrading feature enhances the instrument’s functionality by enabling controlled material removal and/or surface modification, which may be used to complement cutting and/or shaping operations. In some embodiments, the abrading feature comprises a plurality of raised elements, cutting features, spikes, abrasive edges, edges, teeth, ridges, and/or particulate-coated regions disposed along at least a portion of an instrument’s working surface, such as a planar surface, an edge, a distal end, a distal surface, a side, a planar side, and/or a lateral face thereof. These elements may be arranged in a linear, arcuate, radial, grid-like, regular, or irregular patterns and are dimensioned to incrementally remove material through frictional engagement. In one embodiment, the abrading feature may smooth or contour a surface rather than incising it, enabling controlled reshaping without excessive material loss. For example, the abrading feature may include raised abrasive elements with a height ranging from approximately 0.1 mm to 2 mm and a spacing of approximately 0.5 mm to 5 mm, though other dimensions are contemplated based on the intended application. Alternatively, the abrading feature may be embodied as a textured or grit-coated surface, including a roughened, etched, micro-patterned, or abrasive-coated area applied to the instrument’s working surface to enhance material removal efficiency. Such a textured surface may be achieved through chemical etching, laser structuring, abrasive blasting, or the application of bonded abrasive materials, yielding a uniform or patterned roughness with a surface roughness average (Ra) ranging from approximately 0.5 µm to 50 µm, depending on the desired level of abrasiveness. The abrading feature, whether formed as raised elements, cutting features, ridges, abrasive teeth, particulate coatings, or a textured surface, may be integrally formed with the instrument body through machining, molding, laser structuring, or deposition processes or may be a separately applied or affixed element, such as an abrasive-coated layer, bonded grit structure, or modular insert. This flexibility in construction allows the abrading feature to be adapted to various manufacturing processes, material compositions, and instrument designs, supporting a range of applications where controlled abrasion, contouring, and surface refinement are required.

"Tooth" or "teeth" refers to a structural feature of a cutting, rasping, or abrading tool that is configured to engage, cut, tear, abrade, or otherwise modify a target material through mechanical interaction. A tooth may be arranged singularly or in a plurality along a cutting edge, along a cutting face, on an abrading surface, and/or within a rasp feature set. A tooth and may be structured, sized, or configured, to optimize material removal efficiency, cutting precision, abrading precision, and/or surface contouring. A tooth may be shaped, arranged, or functionally similar to biological teeth found in animals or humans, but may also encompass artificial or engineered structures specifically designed for cutting, abrading, or shaping applications. A tooth may include a tooth base, a point, a face, at least one side, and/or a thickness measured from one side to an opposite side of the tooth. The tooth base refers to the portion of the tooth that connects to, or is supported by, a blade, a body, a surface, or a substrate. The point refers to the terminal end of the tooth, which may come to a sharp tip, may resemble a chisel, or may taper into an edge to facilitate material engagement. The face of the tooth includes a surface that contacts the target material. A tooth face may have a rake angle, which can influence the cutting, shearing, or abrading interaction of the tooth with the target material. The at least one side or plurality of sides of the tooth define its lateral boundaries and may contribute to the overall cutting or abrading geometry. The thickness of the tooth is measured between opposing sides and may determine the durability, rigidity, and cutting efficiency of the tooth. A tooth height is measured from the point to the tooth base. A tooth may be made from a variety of materials, including but not limited to stainless steel, titanium, carbide, ceramic, composite materials, polymers, biocompatible materials, or other engineered substances selected for durability, cutting performance, and wear resistance. A tooth may vary in design based on application-specific requirements and may include serrated, chisel-shaped, hooked, beveled, offset, or other specialized geometries to optimize cutting, abrading, or contouring operations. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025). … more "Tooth" or "teeth" refers to a structural feature of a cutting, rasping, or abrading tool that is configured to engage, cut, tear, abrade, or otherwise modify a target material through mechanical interaction. A tooth may be arranged singularly or in a plurality along a cutting edge, along a cutting face, on an abrading surface, and/or within a rasp feature set. A tooth and may be structured, sized, or configured, to optimize material removal efficiency, cutting precision, abrading precision, and/or surface contouring. A tooth may be shaped, arranged, or functionally similar to biological teeth found in animals or humans, but may also encompass artificial or engineered structures specifically designed for cutting, abrading, or shaping applications. A tooth may include a tooth base, a point, a face, at least one side, and/or a thickness measured from one side to an opposite side of the tooth. The tooth base refers to the portion of the tooth that connects to, or is supported by, a blade, a body, a surface, or a substrate. The point refers to the terminal end of the tooth, which may come to a sharp tip, may resemble a chisel, or may taper into an edge to facilitate material engagement. The face of the tooth includes a surface that contacts the target material. A tooth face may have a rake angle, which can influence the cutting, shearing, or abrading interaction of the tooth with the target material. The at least one side or plurality of sides of the tooth define its lateral boundaries and may contribute to the overall cutting or abrading geometry. The thickness of the tooth is measured between opposing sides and may determine the durability, rigidity, and cutting efficiency of the tooth. A tooth height is measured from the point to the tooth base. A tooth may be made from a variety of materials, including but not limited to stainless steel, titanium, carbide, ceramic, composite materials, polymers, biocompatible materials, or other engineered substances selected for durability, cutting performance, and wear resistance. A tooth may vary in design based on application-specific requirements and may include serrated, chisel-shaped, hooked, beveled, offset, or other specialized geometries to optimize cutting, abrading, or contouring operations. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025).

"Moment arm" refers to the perpendicular distance between a specified axis of rotation and the line of action of a force applied to a body. The moment arm determines the effectiveness of the applied force in generating torque about the axis of rotation, where a greater moment arm results in a proportionally larger torque for the same applied force. The length of the moment arm may depend on the spatial relationship between the force application point and the rotational axis, and may be influenced by factors such as mechanical linkages, joint configurations, or force orientation. The moment arm is commonly used in mechanical and biomechanical analysis to assess torque generation and load distribution in various systems, including structural mechanics, robotics, and human movement. The moment arm is typically expressed in units of length, such as meters in the International System of Units or feet in the Imperial system. In the context of an oscillation mount that connects a rasp blade to an oscillation handpiece, the moment arm refers to the perpendicular distance between the axis of oscillation (pivot axis) and a point or points where forces are transferred to the rasp blade at the contact points or interfaces of the oscillation mount. The moment arm may influence how torque generated by the oscillation handpiece is transmitted to the rasp blade, affecting bone removal efficiency, rasp blade stability during operation, and the structural integrity of the oscillation mount. A longer moment arm may result in greater torque being applied to the rasp blade, which may enhance material removal efficiency but also increase mechanical loading at the oscillation mount, potentially leading to structural failure. A shorter moment arm may reduce torque output while improving stability and structural reliability of the oscillation mount but may require increased oscillation amplitude or force application to achieve the desired bone resection or shaping. The mass of the rasp blade, combined with a larger moment arm, may introduce greater inertial effects, influencing oscillatory motion and load distribution at the oscillation mount. The moment arm may be affected by factors such as the mounting configuration of the rasp blade, the positioning of the cutting or abrading surfaces relative to the oscillation axis, and the dynamic forces generated during operation. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025.) … more "Moment arm" refers to the perpendicular distance between a specified axis of rotation and the line of action of a force applied to a body. The moment arm determines the effectiveness of the applied force in generating torque about the axis of rotation, where a greater moment arm results in a proportionally larger torque for the same applied force. The length of the moment arm may depend on the spatial relationship between the force application point and the rotational axis, and may be influenced by factors such as mechanical linkages, joint configurations, or force orientation. The moment arm is commonly used in mechanical and biomechanical analysis to assess torque generation and load distribution in various systems, including structural mechanics, robotics, and human movement. The moment arm is typically expressed in units of length, such as meters in the International System of Units or feet in the Imperial system. In the context of an oscillation mount that connects a rasp blade to an oscillation handpiece, the moment arm refers to the perpendicular distance between the axis of oscillation (pivot axis) and a point or points where forces are transferred to the rasp blade at the contact points or interfaces of the oscillation mount. The moment arm may influence how torque generated by the oscillation handpiece is transmitted to the rasp blade, affecting bone removal efficiency, rasp blade stability during operation, and the structural integrity of the oscillation mount. A longer moment arm may result in greater torque being applied to the rasp blade, which may enhance material removal efficiency but also increase mechanical loading at the oscillation mount, potentially leading to structural failure. A shorter moment arm may reduce torque output while improving stability and structural reliability of the oscillation mount but may require increased oscillation amplitude or force application to achieve the desired bone resection or shaping. The mass of the rasp blade, combined with a larger moment arm, may introduce greater inertial effects, influencing oscillatory motion and load distribution at the oscillation mount. The moment arm may be affected by factors such as the mounting configuration of the rasp blade, the positioning of the cutting or abrading surfaces relative to the oscillation axis, and the dynamic forces generated during operation. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025.)

"Mass moment of inertia" or "Moment of inertia" refers to a measure of an object's resistance to angular acceleration about a specific axis of rotation. The mass moment of inertia is determined by the distribution of an object's mass relative to the axis of rotation, where an increase in mass at a greater distance from the axis results in a higher moment of inertia. The mass moment of inertia may be used to quantify how mass is spatially arranged and how that arrangement affects the rotational dynamics of an object. The mass moment of inertia is typically expressed in units of kilogram meter squared. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025.) … more "Mass moment of inertia" or "Moment of inertia" refers to a measure of an object's resistance to angular acceleration about a specific axis of rotation. The mass moment of inertia is determined by the distribution of an object's mass relative to the axis of rotation, where an increase in mass at a greater distance from the axis results in a higher moment of inertia. The mass moment of inertia may be used to quantify how mass is spatially arranged and how that arrangement affects the rotational dynamics of an object. The mass moment of inertia is typically expressed in units of kilogram meter squared. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025.)

"Bone debris" refers to particulate material generated during the cutting, shaping, or modification of bone using surgical instruments such as osteotomy blades, rasp blade, contouring blades, osteotomy rasps, saws, drills, or the like. Bone debris may include bone chips, bone dust, fragments, or other dislodged material resulting from mechanical interaction between a cutting tool or rasping tool or contouring tool and bone tissue. In certain embodiments, bone debris may vary in size, composition, and morphology, depending on factors such as the cutting speed, tool geometry, bone density, and applied force. Bone debris may consist of cortical bone particles, cancellous bone fragments, or a combination thereof, and may accumulate at or near the cutting interface/face, and may affect cutting efficiency, visibility, and/or heat dissipation. As used herein, "bone debris" encompasses any solid byproduct of bone modification that may require evacuation, removal, or management to maintain optimal surgical performance, ensure procedural accuracy, or facilitate bone healing. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025). … more "Bone debris" refers to particulate material generated during the cutting, shaping, or modification of bone using surgical instruments such as osteotomy blades, rasp blade, contouring blades, osteotomy rasps, saws, drills, or the like. Bone debris may include bone chips, bone dust, fragments, or other dislodged material resulting from mechanical interaction between a cutting tool or rasping tool or contouring tool and bone tissue. In certain embodiments, bone debris may vary in size, composition, and morphology, depending on factors such as the cutting speed, tool geometry, bone density, and applied force. Bone debris may consist of cortical bone particles, cancellous bone fragments, or a combination thereof, and may accumulate at or near the cutting interface/face, and may affect cutting efficiency, visibility, and/or heat dissipation. As used herein, "bone debris" encompasses any solid byproduct of bone modification that may require evacuation, removal, or management to maintain optimal surgical performance, ensure procedural accuracy, or facilitate bone healing. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025).

"Evacuation" refers to the process of removing bone debris, bone chips, and/or other particulate material from the cutting face and/or one or more sets of rasp features of a surgical tool during operation. Evacuation may occur through passive or active mechanisms to enhance cutting efficiency, maintain clear visibility, and reduce heat buildup or clogging. In certain embodiments, evacuation may be facilitated by tooth or rasp feature geometry, including gullet spacing, openings, serrations, or fluting, which directs bone debris away from the cutting face; oscillatory or reciprocating motion, which aids in self-clearing of bone material from engagement surfaces; integrated fluid irrigation systems, such as saline or cooling agents, which assist in flushing debris from the cutting interface; vacuum-assisted suction mechanisms, which actively remove bone particles from the cutting region; openings, ports, or channels specifically designed and/or configured to facilitate evacuation, which may include apertures and/or openings within a blade or a foot or a cutting face, fenestrations in the rasp surface, or grooves along the cutting edge to promote continuous removal of debris. As used herein, "evacuation" encompasses any mechanism or structural design feature that promotes the removal, displacement, or clearing of bone debris from the cutting face or rasp features, whether by mechanical action, fluid assistance, suction, or integrated openings configured for debris management. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025). … more "Evacuation" refers to the process of removing bone debris, bone chips, and/or other particulate material from the cutting face and/or one or more sets of rasp features of a surgical tool during operation. Evacuation may occur through passive or active mechanisms to enhance cutting efficiency, maintain clear visibility, and reduce heat buildup or clogging. In certain embodiments, evacuation may be facilitated by tooth or rasp feature geometry, including gullet spacing, openings, serrations, or fluting, which directs bone debris away from the cutting face; oscillatory or reciprocating motion, which aids in self-clearing of bone material from engagement surfaces; integrated fluid irrigation systems, such as saline or cooling agents, which assist in flushing debris from the cutting interface; vacuum-assisted suction mechanisms, which actively remove bone particles from the cutting region; openings, ports, or channels specifically designed and/or configured to facilitate evacuation, which may include apertures and/or openings within a blade or a foot or a cutting face, fenestrations in the rasp surface, or grooves along the cutting edge to promote continuous removal of debris. As used herein, "evacuation" encompasses any mechanism or structural design feature that promotes the removal, displacement, or clearing of bone debris from the cutting face or rasp features, whether by mechanical action, fluid assistance, suction, or integrated openings configured for debris management. (Defined in conjunction with ChatGPT Version 4o, March 12, 2025).

"Planar" refers to a surface, structure, or feature that extends predominantly along a flat geometric plane. A planar surface may be entirely flat or may include minor variations, curvatures, or surface features, provided that it retains an overall substantially flat configuration relative to an adjacent structure, reference axis, or functional requirement. In various embodiments, a planar surface may be oriented horizontally, vertically, or at an angle relative to another component. A planar surface may include textured, perforated, or contoured features, such as ridges, grooves, rasp features, or recesses, while maintaining an overall flat form. A planar surface may function as a supporting, contacting, guiding, or engaging surface, depending on the application. Examples of planar features include a planar inferior surface of a rasp blade foot defining a substantially flat engagement surface with rasps features, a planar guide surface of a surgical cutting tool ensuring controlled movement along a fixed plane, a planar electrode contact area in an electronic device facilitating uniform electrical interaction, and a planar bearing surface in a mechanical assembly allowing for stable load distribution. As used herein, the term "planar" encompasses surfaces that are predominantly flat in structure while permitting minor deviations, texturing, or functional modifications consistent with their intended use. (© ChatGPT 4o Version, Modified, accessed chat.openai.com/chat March 11, 2025). … more "Planar" refers to a surface, structure, or feature that extends predominantly along a flat geometric plane. A planar surface may be entirely flat or may include minor variations, curvatures, or surface features, provided that it retains an overall substantially flat configuration relative to an adjacent structure, reference axis, or functional requirement. In various embodiments, a planar surface may be oriented horizontally, vertically, or at an angle relative to another component. A planar surface may include textured, perforated, or contoured features, such as ridges, grooves, rasp features, or recesses, while maintaining an overall flat form. A planar surface may function as a supporting, contacting, guiding, or engaging surface, depending on the application. Examples of planar features include a planar inferior surface of a rasp blade foot defining a substantially flat engagement surface with rasps features, a planar guide surface of a surgical cutting tool ensuring controlled movement along a fixed plane, a planar electrode contact area in an electronic device facilitating uniform electrical interaction, and a planar bearing surface in a mechanical assembly allowing for stable load distribution. As used herein, the term "planar" encompasses surfaces that are predominantly flat in structure while permitting minor deviations, texturing, or functional modifications consistent with their intended use. (© ChatGPT 4o Version, Modified, accessed chat.openai.com/chat March 11, 2025).

"Foot" refers to a structural feature of a device, component, apparatus, or system that extends from and/or is connected to a larger device, component, body, apparatus, system, a leg structure, or the like and is configured to engage, support, contact, modify, or apply force to a surface, object, or medium. A foot can facilitate stability, positioning, material interaction, force transmission, or other functional engagements between the device and an external structure. The term “foot” can encompass any structure performing analogous functions to a biological foot, including engagement, stabilization, movement control, and material modification. In various embodiments, a foot may comprise one or more surfaces, edges, or contact points that interact with a target object or surface. The foot and/or its surfaces, edges, or contact points may be planar, contoured, curved, segmented, flexible, or rigid, and may be positioned at various angles relative to a leg and/or body of a device, component, apparatus, or system. In certain configurations, the foot may be integrally formed with, removably attached to, or movably connected to a leg and/or device to allow for articulation, pivoting, or controlled motion. A foot may perform one or more functions, including but not limited to: Load distribution and surface engagement, such as stabilizing a cutting or abrading tool against a material surface; Material modification, such as incorporating rasping, cutting, or abrasive features to remove or reshape material; Force application or transmission, such as controlling contact pressure during oscillation or movement; Pivoting or articulated movement, allowing the foot to adjust dynamically during operation. Examples of a foot include, but are not limited to, a rasp blade foot configured to oscillate against a bone surface, where a planar inferior side includes rasping features for material removal, a surgical saw foot providing a stable contact surface to guide an oscillating or reciprocating blade, a robotic gripper foot designed to stabilize or engage a surface through pressure or frictional contact, a prosthetic foot that mimics the functionality of a biological foot for weight distribution and movement, or the like. (Defined in conjunction with ChatGPT Version 4o, March 11, 2025). … more "Foot" refers to a structural feature of a device, component, apparatus, or system that extends from and/or is connected to a larger device, component, body, apparatus, system, a leg structure, or the like and is configured to engage, support, contact, modify, or apply force to a surface, object, or medium. A foot can facilitate stability, positioning, material interaction, force transmission, or other functional engagements between the device and an external structure. The term “foot” can encompass any structure performing analogous functions to a biological foot, including engagement, stabilization, movement control, and material modification. In various embodiments, a foot may comprise one or more surfaces, edges, or contact points that interact with a target object or surface. The foot and/or its surfaces, edges, or contact points may be planar, contoured, curved, segmented, flexible, or rigid, and may be positioned at various angles relative to a leg and/or body of a device, component, apparatus, or system. In certain configurations, the foot may be integrally formed with, removably attached to, or movably connected to a leg and/or device to allow for articulation, pivoting, or controlled motion. A foot may perform one or more functions, including but not limited to: Load distribution and surface engagement, such as stabilizing a cutting or abrading tool against a material surface; Material modification, such as incorporating rasping, cutting, or abrasive features to remove or reshape material; Force application or transmission, such as controlling contact pressure during oscillation or movement; Pivoting or articulated movement, allowing the foot to adjust dynamically during operation. Examples of a foot include, but are not limited to, a rasp blade foot configured to oscillate against a bone surface, where a planar inferior side includes rasping features for material removal, a surgical saw foot providing a stable contact surface to guide an oscillating or reciprocating blade, a robotic gripper foot designed to stabilize or engage a surface through pressure or frictional contact, a prosthetic foot that mimics the functionality of a biological foot for weight distribution and movement, or the like. (Defined in conjunction with ChatGPT Version 4o, March 11, 2025).

"Powered oscillation handpiece" refers to a motor-driven surgical instrument designed to generate repeated angular displacement about a pivot axis or axis of rotation for use in osteotomies and other precision cutting, shaping, or material removal procedures. The handpiece transmits oscillatory motion to an attached tool—such as a rasp blade, saw blade, burr, or other cutting instrument—allowing for controlled engagement with bone or other surgical targets. A powered oscillation handpiece may incorporate electromechanical, pneumatic, or other drive mechanisms to provide variable-speed oscillation, enabling precise control over depth, speed, and force of material removal. The device is designed for compatibility with various surgical tool attachments, including those used for bone shaping, contouring, resection, or controlled excision. In certain embodiments, the powered oscillation handpiece may include ergonomic handling features, vibration-dampening structures, or integrated cooling systems to enhance surgical precision and reduce procedural fatigue. (© ChatGPT 4o Version, Modified, accessed chat.openai.com/chat March 10, 2025). … more "Powered oscillation handpiece" refers to a motor-driven surgical instrument designed to generate repeated angular displacement about a pivot axis or axis of rotation for use in osteotomies and other precision cutting, shaping, or material removal procedures. The handpiece transmits oscillatory motion to an attached tool—such as a rasp blade, saw blade, burr, or other cutting instrument—allowing for controlled engagement with bone or other surgical targets. A powered oscillation handpiece may incorporate electromechanical, pneumatic, or other drive mechanisms to provide variable-speed oscillation, enabling precise control over depth, speed, and force of material removal. The device is designed for compatibility with various surgical tool attachments, including those used for bone shaping, contouring, resection, or controlled excision. In certain embodiments, the powered oscillation handpiece may include ergonomic handling features, vibration-dampening structures, or integrated cooling systems to enhance surgical precision and reduce procedural fatigue. (© ChatGPT 4o Version, Modified, accessed chat.openai.com/chat March 10, 2025).

“Rasp blade” refers to a tool, apparatus, or device configured to engage with an oscillation handpiece for modifying or removing material from an object. The object may include biological tissue, synthetic materials, or other surfaces requiring reshaping, contouring, or material removal. A rasp blade operates by oscillating through a defined arc, interacting with the target object to remove, shape, or refine its surface. It may include one or more rasping features that engage with the object through cutting, abrading, tearing, or scraping actions. A rasp blade may be adaptable to various oscillation handpieces, including those designed for oscillating saw blades or other tool attachments. It may be configured to remove material at different rates, from aggressive material reduction to fine precision adjustments, allowing the user to control the degree of modification. (Defined in conjunction with ChatGPT 4o Version, March 10, 2025). … more “Rasp blade” refers to a tool, apparatus, or device configured to engage with an oscillation handpiece for modifying or removing material from an object. The object may include biological tissue, synthetic materials, or other surfaces requiring reshaping, contouring, or material removal. A rasp blade operates by oscillating through a defined arc, interacting with the target object to remove, shape, or refine its surface. It may include one or more rasping features that engage with the object through cutting, abrading, tearing, or scraping actions. A rasp blade may be adaptable to various oscillation handpieces, including those designed for oscillating saw blades or other tool attachments. It may be configured to remove material at different rates, from aggressive material reduction to fine precision adjustments, allowing the user to control the degree of modification. (Defined in conjunction with ChatGPT 4o Version, March 10, 2025).

"Oscillation mount" refers to a mount device, apparatus, component, module, part, piece, mounting structure, or the like configured, designed, and/or engineered to facilitate the attachment or coupling of a tool, blade, apparatus, device, or component to an oscillation handpiece (powered or unpowered). The oscillation mount may include features for secure coupling, stability, and compatibility with various tool configurations. … more "Oscillation mount" refers to a mount device, apparatus, component, module, part, piece, mounting structure, or the like configured, designed, and/or engineered to facilitate the attachment or coupling of a tool, blade, apparatus, device, or component to an oscillation handpiece (powered or unpowered). The oscillation mount may include features for secure coupling, stability, and compatibility with various tool configurations.