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"Friction fit" refers to a type of joint or connection that is created between two components by means of friction. A joint or connection that is formed using a friction fit may or may not include the use of additional fasteners such as screws, bolts, or adhesives. In a friction fit, the components are designed or configured to fit tightly together, creating enough friction between the surfaces to hold them securely in place, at least temporarily. The friction force is generated by the compressive force that is experienced between the components, and can be strong enough to prevent the components from separating under normal conditions. (© ChatGPT Mar. 23 Version, Modified, accessed chat.openai.com/chat May 2, 2023). |
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As used herein, "osteotomy procedure" or "surgical osteotomy" or “osteotomy” refers to a surgical operation in which one or more bones are cut to shorten or lengthen them or to change their alignment. The procedure can include removing one or more portions of bone and/or adding one or more portions of bone or bone substitutes. (Search "osteotomy" on Wikipedia.com Feb. 3, 22, 2021. CC-BY-SA 3.0 Modified. Accessed Feb. 15, 2022.) As used herein, "patient-specific osteotomy procedure" refers to an osteotomy procedure that has been adjusted, tailored, modified, or configured to specifically address the anatomy, physiology, condition, abnormalities, needs, or desires of a particular patient. In certain aspects, one patient-specific osteotomy procedure may be useable in connection with only one patient. In other aspects, one patient-specific osteotomy procedure may be useable with a number of patients having a particular class of characteristics. In certain aspects, a patient-specific osteotomy procedure may refer to a non-patient-specific osteotomy procedure that includes one or more patient-specific implants and/or instrumentation. In another aspects, a patient-specific osteotomy procedure may refer to a patient-specific osteotomy procedure that includes one or more patient-specific implants, patient-specific surgical steps, and/or patient-specific instrumentation. |
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"Wedge osteotomy" refers to an osteotomy procedure in which one or more wedges are used as part of the procedure. Generally, wedge osteotomies can be of one of two types, open wedge and closing wedge. The type of osteotomy refers to how the procedure changes the relation between two parts of a bone involved in the osteotomy. In an open wedge osteotomy a wedge of bone or graft or other material is inserted in between two parts of a bone. Consequently, a wedge shape is "opened" in the bone. In a close wedge osteotomy or closing wedge osteotomy a wedge of bone is removed from a bone. Consequently, a wedge shape formed in the bone is "closed." |
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"Metatarsal" is a bone of a foot of a human or animal. In a human, a foot typically includes five metatarsals which are identified by number starting from the most medial metatarsal, which is referred to as a first metatarsal and moving laterally the next metatarsal is the second metatarsal, and the naming continues in like manner for the third, fourth, and fifth metatarsal. The metatarsal bone includes three parts a base which is a part that is at a proximal end of the metatarsal, a head which is a part that is at a distal end of the metatarsal, and a shaft or neck connects the base to the head. |
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"Epiphyses" refers to the rounded end of a long bone, at long bone's joint with adjacent bone(s). Between the epiphysis and diaphysis (the long midsection of the long bone) lies the metaphysis, including the epiphyseal plate (growth plate). At the joint, the epiphysis is covered with articular cartilage; below that covering is a zone similar to the epiphyseal plate, known as subchondral bone. (Search 'epiphysis' on Wikipedia.com 17 June 2022. Modified. Accessed Aug. 1, 2022.) "Metaphysis" refers to the neck portion of a long bone between the epiphysis and the diaphysis. The metaphysis contains the growth plate, the part of the bone that grows during childhood, and as the metaphysis grows the metaphysis ossifies near the diaphysis and the epiphyses. (Search 'metaphysis' on Wikipedia.com 17 June 2022. Modified. Accessed Aug. 1, 2022.) "Diaphysis" refers to the main or midsection (shaft) of a long bone. The diaphysis is made up of cortical bone and usually contains bone marrow and adipose tissue (fat). The diaphysis is a middle tubular part composed of compact bone which surrounds a central marrow cavity which contains red or yellow marrow. In diaphysis, primary ossification occurs. (Search 'diaphysis' on Wikipedia.com 17 June 2022. Modified. Accessed Aug. 1, 2022.) |
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"Metaphyseal Diaphyseal Junction" or "MDJ" refers to an area of a long bone between the Metaphysis and the Diaphysis. This area can also include or be referred to as the epiphyseal plate (growth) plate. For certain surgical procedures, performing an osteotomy at or near the metaphyseal diaphyseal junction may be advantageous and desirable to promote rapid fusion of two cut faces formed in the osteotomy and bone growth to close the osteotomy, and / or may mitigate the risk of a nonunion of the osteotomy. |
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As used herein, a "base" refers to a main or central structure, component, or part of a structure. A base is often a structure, component, or part upon which, or from which other structures extend into, out of, away from, are coupled to, or connect to. A base may have a variety of geometric shapes and configurations. A base may be rigid or pliable. A base may be solid or hollow. A base can have any number of sides. In one embodiment, a base may include a housing, frame, or framework for a larger system, component, structure, or device. In certain embodiments, a base can be a part at the bottom or underneath a structure designed to extend vertically when the structure is in a desired configuration or position. Certain bones such as a metatarsal bone can include a base as one structural component of the bone. |
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As used herein, "anatomic data" refers to data identified, used, collected, gathered, and/or generated in connection with an anatomy of a human or animal. Examples of anatomic data may include location data for structures, both independent, and those connected to other structures within a coordinate system. Anatomic data may also include data that labels or identifies one or more anatomical structures. Anatomic data can include volumetric data, material composition data, and/or the like. Anatomic data can be generated based on medical imaging data or measurements using a variety of instruments including monitors and/or sensors. Anatomic data can be gathered, measured, or collected from anatomical models and/or can be used to generate, manipulate, or modify anatomical models. |
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A bone model or anatomic model of a patient’s body or body part(s) may be generated by computing devices that analyze medical imaging images. Structures of a patient’s body can be determined using a process called segmentation. |
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"Positioner" or "positioning guide" refers to any structure, apparatus, surface, device, system, feature, or aspect configured to position, move, translate, manipulate, or arrange one object in relation to another. In certain embodiments, a positioner can be used for one step in surgical procedure to position, arrange, orient, and/or reduce one bone or bone fragment relative to another. In such embodiments, the positioner may be referred to as a bone positioner. In certain embodiments, the term positioner or positioning guide may be preceded by an adjective that identifies the structure, implement, component, or instrument that may be used with, positioned by, and/or guided by with the positioner. For example, a “pin positioner” may be configured to accept a pin or wire such as a K-wire and serve to position or place the pin relative to another structure such as a bone. |
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"Reduction guide" or "reducer" refers to any structure, apparatus, surface, device, system, feature, or aspect configured, designed, engineered, or fabricated to reduce or aide a user in the reduction of one bone or bone fragment or implant in relation to another bone or bone fragment or implant. |
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"Rotation guide" or "rotator" refers to any structure, apparatus, surface, device, system, feature, or aspect configured, designed, engineered, or fabricated to rotate or aid a user in the rotation of one structure relative to another structure. In certain embodiments, a rotation guide or rotator may be used to help a surgeon rotate one or more bones, parts of bones, bone fragment, an implant, or other anatomical structure, either alone or in relation to another one or more bones, parts of bones, bone fragments, implants, or other anatomical structures. |
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"Trajectory guide" or "trajectory indicator" or "targeting guide" refers to any structure, apparatus, surface, device, system, feature, or aspect configured to indicate, identify, guide, place, position, or otherwise assist in marking or deploying a fastener or other structure along a desired trajectory for one or more subsequent steps in a procedure. |
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"Metatarsal base resection guide" refers to a resection guide designed, engineered, fabricated, or intended for use with, one, in, or about a base part, section, surface, portion, or aspect of a metatarsal for one or more steps of a medical procedure. The metatarsal base resection guide may be used to form an osteotomy, to resect a wedge for a closing wedge procedure, resect a bone wedge that preserves a cortical layer of bone opposite the resected bone wedge, form an osteotomy that uniplanar wedge, a biplanar wedge, or a triplane wedge. Various embodiments of a metatarsal base resection guide may be used on a medial surface, a dorsal surface, a lateral surface, or a plantar surface of a single metatarsal. Alternatively, or in addition, various embodiments of a metatarsal base resection guide can be used on two or more metatarsals. |
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"Reduction guide" or "reducer" refers to any structure, apparatus, surface, device, system, feature, or aspect configured, designed, engineered, or fabricated to reduce or aide a user in the reduction of one bone or bone fragment or implant in relation to another bone or bone fragment or implant. |
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"Fastener guide" or "reducer" refers to any structure, apparatus, surface, device, system, feature, or aspect configured, designed, engineered, or fabricated to guide or direct a fastener into a bone as part of deploying the fastener. Examples of a fastener guide include an opening in a structure that is sized and/or oriented for deployment of a fastener such as a bone screw, a reference pin for aligning a fastener for deployment at a desired orientation and/or trajectory, and the like. |
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As used herein, a “guard” refers to an apparatus, instrument, structure, member, device, component, system, or assembly structured, organized, configured, designed, arranged, or engineered to prevent, limit, impede, stop, or restrict motion, action, or movement and/or operation of the another object, member, structure, component, part, apparatus, system, or assembly beyond a certain parameter such as a boundary. Said another way, a "guard" refers to an apparatus, instrument, structure, member, device, component, system, or assembly structured, organized, configured, designed, arranged, or engineered to retain, maintain, hold, keep, or restrict motion, action, or movement and/or operation of the another object, member, structure, component, part, apparatus, system, or assembly within or at one or more parameters such as a boundary. |
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As used herein, "artificial intelligence" refers to intelligence demonstrated by machines, unlike the natural intelligence displayed by humans and animals, which involves consciousness and emotionality. The distinction between artificial intelligence and natural intelligence categories is often revealed by the acronym chosen. 'Strong' AI is usually labelled as artificial general intelligence (AGI) while attempts to emulate 'natural' intelligence have been called artificial biological intelligence (ABI). Leading AI textbooks define the field as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of achieving its goals. The term "artificial intelligence" can also be used to describe machines that mimic "cognitive" functions that humans associate with the human mind, such as "learning" and "problem solving". (Search "artificial intelligence" on Wikipedia.com June 25, 2021. CC-BY-SA 3.0 Modified. Accessed June 25, 2021.) |
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As used herein, "segmentation" or "image segmentation" refers to the process of partitioning an image into different meaningful segments. These segments may correspond to different tissue classes, organs, pathologies, bones, or other biologically relevant structures. Medical image segmentation accommodates imaging ambiguities such as by low contrast, noise, and other imaging ambiguities. |
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Certain computer vision techniques can be used or adapted for image segmentation. For example, the techniques and or algorithms for segmentation may include, but are not limited to: Atlas-Based Segmentation: For many applications, a clinical expert can manually label several images; segmenting unseen images is a matter of extrapolating from these manually labeled training images. Methods of this style are typically referred to as atlas-based segmentation methods. Parametric atlas methods typically combine these training images into a single atlas image, while nonparametric atlas methods typically use all of the training images separately. Atlas-based methods usually require the use of image registration in order to align the atlas image or images to a new, unseen image. |
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