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3. The knotless suture anchor system of claim 2, wherein the driver comprises: |
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2. The knotless suture anchor system of claim 1 further comprising a driver operable to urge the interference member into the anchor body, and operable to move the interference member out of the anchor body. |
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a frangible connection that joins a proximal member to the anchor body. |
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an interference member insertable distally into the longitudinal passageway to secure a portion of a suture within the longitudinal passageway by compressing the portion of the suture between the interference member and the anchor body; and |
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an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal ends, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end; |
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1. A knotless suture anchor system comprising: |
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As used herein, a “tensioner” refers to an apparatus, instrument, structure, device, component, system, or assembly that is structured, organized, configured, designed, arranged, or engineered to apply or increase tension in another structure, component, or device. The another structure, component, or device can be any of a variety of things including, but not limited to a thread, a suture, suture tape, a woven structure, a fibrous material, a cord, a ligament, cartilage, muscle, a ligament graft, and/or any of these in combination with each other, or the like. In certain embodiments, a tensioner can be used to release or relax tension in another structure, component, or device. |
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As used herein, an “axial force transmitting relationship” refers to a functional relationship between a first structure and a second structure. In this relationship, the structures interact with each other such that a force experienced or imparted by one structure (first or second) is transferred or transmitted to the other structure (first or second) along or in relation to a shared single axis. In certain embodiments, the first structure and second structure share a common axis. In other words, the two structures are coaxial. One axis, such as a longitudinal axis, is shared by both the first structure and the second structure. |
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tying a knot in the second portion of the suture outside of a patient’s body; and |
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As used herein, an “axial translation” refers to motion of one or more components along a common axis. |
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The three types of fit are: Clearance: The hole is larger than the shaft, enabling the two parts to slide and/or rotate when assembled, e.g., piston & valves; Location/transition: The hole is fractionally smaller than the shaft and mild force is required to assemble/disassemble e.g., Shaft key; and Interference: The hole is smaller than the shaft and high force and/or heat is required to assemble/disassemble e.g., Bearing bush. |
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As used herein, a “clearance fit” refers to a type of engineering fit. An engineering fit is used in defining geometric dimensions and tolerances when designing a part or assembly. The fit is the clearance between two mating parts, and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other or, at the other end, are temporarily or permanently joined together. Engineering fits are generally described as a "shaft and hole" pairing but are not limited to just round components. |
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As used herein, a “pushrod” refers to an instrument, structure, device, or component that is long and slender or narrow and structured, organized, configured, positioned, designed, arranged, and/or engineered to press or push against another structure, instrument, component, or device. (Search 'Valve train' on Wikipedia.com July 15, 2021. Modified. Accessed Aug. 18, 2021.) |
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As used herein, “ridge” refers to a narrow, raised band on a surface or a structure that extends outwards from something. One or more ridges can be configured in a uniform relationship to each other, such as being parallel or extending radially from a common point. (Search "ridge" on wordhippo.com. WordHippo, 2021. Web. Accessed 18 Aug. 2021. Modified.) |
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As used herein, an “inserter” refers to an apparatus, instrument, structure, device, component, system, or assembly that is structured, organized, configured, designed, arranged, or engineered to insert or deploy one or more components, parts, or devices. In certain embodiments, an inserter can be used to insert implants and/or prosthesis into tissue, organs, or parts of a patient. In certain embodiments, an inserter can also be used to extract, retract, reposition, or remove an implant and/or prosthesis. |
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As used herein, a “boss” refers to a protruding feature on a work piece or structure. A common use or feature for a boss is to locate one object within a pocket or hole of another object. (Search 'Boss (engineering)' on Wikipedia.com Aug. 13, 2021. Modified. Accessed Aug. 18, 2021.). |
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As used herein, a “recess” refers to hollow, pocket, void, opening, or depression formed in a surface. In certain embodiments, the recess does not pass through the structure having the surface. A recess can have a variety of cross-section shapes (e.g., ovoid, oval, round, circular, rectangular, square, or the like) and have a variety of configurations for one or more walls that define the recess. In one example, a recess can have one or more walls that connect in rounded corners. In certain embodiments, a recess is sized and shaped to receive or accept another structure. |
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A variety of surgical procedures require the attachment of something relative to a surgical site. For example, in surgery relating to the skeletal system, it is often advantageous to attach soft tissue, suture, implants, and/or other items in or adjacent to a bone. For example, soft tissues such as ligaments, tendons, fascia, other capsular material, and/or muscle may be attached to a bone. Such soft tissues may be adjacent bones at skeletal joints including but not limited to the joints of the hands and feet, ankle, wrist, knee, elbow, hip, shoulder, and spine. For example, it is often advantageous to pass a suture through a portion of a bone to form a transosseous attachment to the bone. |
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The various apparatus, devices, systems, and/or methods of the present disclosure have been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available suture anchors and related instrumentation. One general aspect of the present disclosure can include, a knotless suture anchor system that includes an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal ends, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end; an interference member insertable distally into the longitudinal passageway to secure a portion of a suture within the longitudinal passageway by compressing the portion of the suture between the interference member and the anchor body, and a frangible connection that joins a proximal member to the anchor body. |
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Implementations may include one or more of the following features. The knotless suture anchor system may include a driver operable to urge the interference member into the anchor body, and operable to move the interference member out of the anchor body. The driver may include: a drive shaft having a proximal end and a distal end; a drive coupler connected to the drive shaft at the proximal end; a drive feature connected to the drive shaft at the distal end; and external drive threads between the proximal end and the distal end, the external drive threads configured to engage internal drive threads of an inserter. The driver is configured to apply a torque to the interference member that engages at least one external helical thread of the interference member with an internal thread of the anchor body. The proximal end of the anchor body includes internal helical threads, and the interference member may include a set screw having external helical threads configured to interface with the internal helical threads in a clearance fit having a length of thread engagement shorter than a length of the external helical threads. |
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