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In one embodiment, the method 300 begins after a bone model of a patient’s body or body part(s) is generated. In a first step 302, the method 300 may review the bone model and data associated with the bone model to determine anatomic data of a patient’s foot. |
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After step 302, the method 300 may determine 304 one or more angles (e.g., trajectory angle) and/or patient-specific features for a procedure using the anatomic data. “Trajectory angle” refers to a recommended angle for deployment of an instrument, graft, body part, or resection feature angle relative to a bone of a patient for a procedure. In certain embodiments, determining steps, instruments, and/or implants for a corrective procedure may employ advanced computer analysis system, expert systems, machine learning, and/or automated/artificial intelligence. |
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Next, the method 300 may proceed and a preliminary instrument model is provided 306 from a repository of template models. A preliminary instrument model is a model of a preliminary instrument. |
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As used herein, “preliminary instrument” refers to an instrument configured, designed, and/or engineered to serve as a template, prototype, archetype, or starting point for creating, generating, or fabricating a patient-specific instrument. In one aspect, the preliminary instrument may be used, as-is, without any further changes, modifications, or adjustments and thus become a patient-specific instrument. In another aspect, the preliminary instrument may be modified, adjusted, or configured to more specifically address the goals, objectives, or needs of a patient or a surgeon and by way of the modifications become a patient-specific instrument. The patient-specific instrument can be used by a user, such as a surgeon, to guide steps in a surgical procedure, such as an osteotomy, graft harvest (e.g., autograft, allograft, or xenograft), minimally invasive surgical (MIS) procedure, and/or a tendon transfer procedure. Accordingly, a preliminary instrument model can be used to generate a patient-specific instrument. The patient-specific instrument model may be used in a surgical procedure to facilitate one or more steps of the procedure, and may be used to generate a patient-specific instrument that can be used in a surgical procedure for the patient. |
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Exemplary embodiments of the disclosure will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. It will be readily understood that the components, as generally described and illustrated in the Figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of the embodiments of the apparatus, system, and method is not intended to limit the scope of the disclosure but is merely representative of exemplary embodiments. |
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The phrases "connected to," "coupled to" and "in communication with" refer to any form of interaction between two or more entities, including mechanical, electrical, magnetic, electromagnetic, fluid, and thermal interaction. Two components may be functionally coupled to each other even though they are not in direct contact with each other. The term "abutting" refers to items that are in direct physical contact with each other, although the items may not necessarily be attached together. The phrase "fluid communication" refers to two features that are connected such that a fluid within one feature can pass into the other feature. |
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The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated. |
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Standard medical planes of reference and descriptive terminology are employed in this disclosure. While these terms are commonly used to refer to the human body, certain terms are applicable to physical objects in general. A standard system of three mutually perpendicular reference planes is employed. A sagittal plane divides a body into right and left portions. A coronal plane divides a body into anterior and posterior portions. A transverse plane divides a body into superior and inferior portions. A mid-sagittal, mid-coronal, or mid-transverse plane divides a body into equal portions, which may be bilaterally symmetric. The intersection of the sagittal and coronal planes defines a superior-inferior or cephalad-caudal axis. The intersection of the sagittal and transverse planes defines an anterior-posterior axis. The intersection of the coronal and transverse planes defines a medial-lateral axis. The superior-inferior or cephalad-caudal axis, the anterior-posterior axis, and the medial-lateral axis are mutually perpendicular. |
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Anterior means toward the front of a body. Posterior means toward the back of a body. Superior or cephalad means toward the head. Inferior or caudal means toward the feet or tail. Medial means toward the midline of a body, particularly toward a plane of bilateral symmetry of the body. Lateral means away from the midline of a body or away from a plane of bilateral symmetry of the body. Axial means toward a central axis of a body. Abaxial means away from a central axis of a body. Ipsilateral means on the same side of the body. Contralateral means on the opposite side of the body from the side which has a particular condition or structure. Proximal means toward the trunk of the body. Proximal may also mean toward a user, viewer, or operator. Distal means away from the trunk. Distal may also mean away from a user, viewer, or operator. Dorsal means toward the top of the foot or other body structure. Plantar means toward the sole of the foot or toward the bottom of the body structure. |
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Antegrade means forward moving from a proximal location/position to a distal location/position or moving in a forward direction. Retrograde means backward moving from a distal location/position to a proximal location/position or moving in a backwards direction. Sagittal refers to a midline of a patient’s anatomy, which divides the body into left or right halves. The sagittal plane may be in the center of the body, splitting it into two halves. Prone means a body of a person lying face down. Supine means a body of a person lying face up. |
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As used herein, “coupling”, “coupling member”, or "coupler" refers to a mechanical device, apparatus, member, component, system, assembly, or structure, that is organized, configured, designed, arranged, or engineered to connect, or facilitate the connection of, two or more parts, objects, or structures. In certain embodiments, a coupling can connect adjacent parts or objects at their ends. In certain embodiments, a coupling can be used to connect two shafts together at their ends for the purpose of transmitting power. In other embodiments, a coupling can be used to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both. In certain embodiments, couplings may not allow disconnection of the two parts, such as shafts during operation. (Search "coupling" on Wikipedia.com July 26, 2021. CC-BY-SA 3.0 Modified. Accessed July 27, 2021.) A coupler may be flexible, semiflexible, pliable, elastic, or rigid. A coupler may join two structures either directly by connecting directly to one structure and/or directly to the other or indirectly by connecting indirectly (by way of one or more intermediary structures) to one structure, to the other structure, or to both structures. |
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"Patient specific" refers to a feature, an attribute, a characteristic, a structure, function, structure, device, guide, tool, instrument, apparatus, member, component, system, assembly, module, or subsystem or the like that is adjusted, tailored, modified, organized, configured, designed, arranged, engineered, and/or fabricated to specifically address the anatomy, physiology, condition, abnormalities, needs, or desires of a particular patient or surgeon serving the particular patient. In one aspect, a patient specific attribute or feature is unique to a single patient and may include features unique to the patient such as a number of cut channels, a number of bone attachment features, a number of bone engagement surfaces, a number of resection features, a depth of one or more cutting channels, an angle for one or more resection channels, a surface contour, component position, component orientation, a trajectory for an instrument, implant, or anatomical part of a patient, a lateral offset, and/or other features. |
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"Patient-specific instrument" refers to an instrument, implant, or guide designed, engineered, and/or fabricated for use with a specific patient. In one aspect, a patient-specific instrument is unique to a patient and may include features unique to the patient such as a surface contour or other features. |
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"Patient-specific positioning guide" or “Patient-specific positioner” refers to an instrument, implant, positioner, structure, or guide designed, engineered, and/or fabricated for use as a positioner with a specific patient. In one aspect, a patient-specific positioning guide is unique to a patient and may include features unique to the patient such as patient-specific offsets, translation distances, openings, angles, orientations, anchor a surface contour or other features. |
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"Patient-specific cutting guide" refers to a cutting guide designed, engineered, and/or fabricated for use with a specific patient. In one aspect, a patient-specific cutting guide is unique to a patient and may include features unique to the patient such as a surface contour or other features. |
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"Patient-specific resection guide" refers to a guide designed, engineered, and/or fabricated for use in resection for a specific patient. In one aspect, a patient-specific resection guide is unique to a patient and may include features unique to the patient such as a surface contour or other features. |
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"Patient-specific trajectory guide" refers to a trajectory guide designed, engineered, and/or fabricated for use with a specific patient. In one aspect, a patient-specific trajectory guide is unique to a single patient and may include features unique to the patient such as a surface contour or other features. |
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"Patient specific instrument" (PSI) refers to a structure, device, guide, tool, instrument, apparatus, member, component, system, assembly, module, or subsystem that is adjusted, tailored, modified, organized, configured, designed, arranged, engineered, and/or fabricated to specifically address the anatomy, physiology, condition, abnormalities, needs, or desires of a particular patient. In certain aspects, one patient. In one aspect, a patient specific instrument is unique to a single patient and may include features unique to the patient such as a surface contour, component position, component orientation, and/or other features. In other aspects, one patient specific instrument may be useable with a number of patients having a particular class of characteristics. |
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As used herein, a "handle" or “knob” refers to a structure used to hold, control, or manipulate a device, apparatus, component, tool, or the like. A “handle” may be designed to be grasped and/or held using one or two hands of a user. In certain embodiments, a handle or knob may be an elongated structure. In one embodiment, a knob may be a shorter stubby structure. |
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As used herein, "implant" refers to a medical device manufactured to replace a missing biological structure, support a damaged biological structure, or enhance an existing biological structure. Often medical implants are man-made devices, but implants can also be natural occurring structures. The surface of implants that contact the body may be made of, or include a biomedical material such as titanium, cobalt chrome, stainless steel, carbon fiber, another metallic alloy, silicone, polymer, Synthetic polyvinyl alcohol (PVA) hydrogels, biomaterials, biocompatible polymers such as PolyEther Ether Ketone (PEEK) or a polylactide polymer (e.g. PLLA) and/or others, or apatite, or any combination of these depending on what is functional and/or economical. Implants can have a variety of configurations and can be wholly, partially, and/or include a number of components that are flexible, semiflexible, pliable, elastic, supple, semi-rigid, or rigid. In some cases implants contain electronics, e.g. artificial pacemaker and cochlear implants. Some implants are bioactive, such as subcutaneous drug delivery devices in the form of implantable pills or drug-eluting stents. Orthopedic implants may be used to alleviate issues with bones and/or joints of a patient's body. Orthopedic implants can be used to treat bone fractures, osteoarthritis, scoliosis, spinal stenosis, discomfort, and pain. Examples of orthopedic implants include, but are not limited to, a wide variety of pins, rods, screws, anchors, spacers, sutures, all-suture implants, ball all-suture implants, self-locking suture implants, cross-threaded suture implants, plates used to anchor fractured bones while the bones heal or fuse together, and the like. (Search "implant (medicine)" on Wikipedia.com May 26, 2021. CC-BY-SA 3.0 Modified. Accessed June 30, 2021.) |
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