Systems, devices and methods are disclosed for treating fractures. The systems, devices and methods may include one or both of an implant, such as an intramedullary nail, and a fastening assembly, such as a lag screw and compression screw assembly. The implant in some embodiments has a proximal sect
Systems, devices and methods are disclosed for treating fractures. The systems, devices and methods may include one or both of an implant, such as an intramedullary nail, and a fastening assembly, such as a lag screw and compression screw assembly. The implant in some embodiments has a proximal section with a transverse aperture and a cross-section that may be shaped to more accurately conform to the anatomical shape of cortical bone and to provide additional strength and robustness in its lateral portions, preferably without requiring significant additional material. The fastening assembly may be received to slide, in a controlled way, in the transverse aperture of the implant. In some embodiments, the engaging member and the compression device are configured so that the compression device interacts with a portion of the implant and a portion of the engaging member to enable controlled movement between the first and second bone fragments. This configuration is useful for, among other things, compressing a fracture.
대표청구항▼
1. An apparatus for treating a bone fracture comprising a first bone portion and a second bone portion, the apparatus comprising: a. a bone implant adapted to be connected to the first bone portion and containing a transverse aperture;b. a fastening assembly adapted to slide within the transverse ap
1. An apparatus for treating a bone fracture comprising a first bone portion and a second bone portion, the apparatus comprising: a. a bone implant adapted to be connected to the first bone portion and containing a transverse aperture;b. a fastening assembly adapted to slide within the transverse aperture as a unit and comprising a first member and a second member, the first member comprising a cooperation structure and a channel, wherein the second member nests partially within the channel of the first member; andc. wherein the first member and the second member contact the second bone portion, and when the second member is adjusted relative to the first member, the second member contacts and interacts with the cooperation structure and a portion of the bone implant to thereby cause compression of the first and second bone portions relative to each other. 2. The apparatus according to claim 1, wherein the second member comprises a head and the transverse aperture comprises a shoulder, and the head contacts and interacts with the shoulder to control sliding of the fastening assembly. 3. The apparatus according to claim 1, wherein the second member contacts the second bone portion, and the first member engages the second bone portion. 4. The apparatus according to claim 1, wherein the second member contacts and interacts with the first member to preclude the second bone portion from rotating relative to the first bone portion. 5. The apparatus according to claim 1, wherein the cooperation structure includes at least one of a key that cooperates with a slot on the second member, a set of ratchet teeth that cooperates with a set of ratchet teeth on the second member, a threaded portion that cooperates with a threaded portion on the second member, or a cross hair screw that cooperates with a threaded portion on the second member. 6. The apparatus according to claim 1, wherein the bone implant is an intramedullary nail. 7. The apparatus according to claim 1, wherein at least one of the first member and the second member is a screw. 8. An apparatus for treating fractures between a first bone portion and a second bone portion, the apparatus comprising: a. a bone implant adapted to be connected to the first bone portion and containing a transverse aperture and a shoulder within the transverse aperture;b. a fastening assembly adapted to slide within the transverse aperture as a unit and comprising a first member and a second member, the first member comprising a cooperation structure and a channel, wherein the second member nests partially within the channel of the first member and includes a head; andc. wherein the first member and the second member contact the second bone portion, and when the second member is adjusted relative to the first member, the second member contacts and interacts with the cooperation structure, and the head of the second member contacts and interacts with the shoulder within the transverse aperture to thereby cause compression of the first and second bone portions relative to each other. 9. The apparatus according to claim 8, wherein the transverse aperture is asymmetrical in cross section and includes a first portion adapted to receive at least part of the first member and a second portion adapted to receive at least part of the second member. 10. The apparatus according to claim 8, wherein the implant is an intramedullary nail. 11. The apparatus according to claim 8, wherein the implant includes a proximal section that is asymmetrical in cross-section about at least one axis. 12. The apparatus according to claim 8, wherein the second member contacts the second bone portion, and the first member engages the second bone portion. 13. The apparatus according to claim 8, wherein the second member contacts and interacts with the first member to preclude the second bone portion from rotating relative to the first bone portion. 14. The apparatus according to claim 8, wherein the cooperation structure includes at least one of a key that cooperates with a slot on the second member, a set of ratchet teeth that cooperates with a set of ratchet teeth on the second member, a threaded portion that cooperates with a threaded portion on the second member, or a cross hair screw that cooperates with a threaded portion on the second member. 15. An apparatus for treating bone fractures, the apparatus comprising: a. a bone implant adapted to be connected to a first bone portion and containing a transverse aperture;b. a fastening assembly adapted to slide within the transverse aperture as a unit, and comprising an engaging member and a compression member, the engaging member comprising a channel and a first threaded portion within the channel, wherein the compression member nests partially within the channel of the engaging member and includes at least a second threaded portion that interacts with the first threaded portion of the channel;c. wherein the engaging member and the compression member contact a second bone portion to thereby preclude rotation of the first and second bone portions relative to each other; andd. when the compression member is rotated relative to the engaging member, the compression member contacts and interacts with a portion of the implant, and the second threaded portion of the compression member interacts with the first threaded portion of the channel to thereby cause compression of the first and second bone portions relative to each other. 16. The apparatus according to claim 15, wherein the compression member comprises a head and the transverse aperture comprises a shoulder, and the head contacts and interacts with the shoulder to control sliding of the fastening assembly. 17. The apparatus according to claim 15, wherein the bone implant is an intramedullary nail. 18. The apparatus according to claim 15, wherein the transverse aperture is asymmetrical in cross section and includes a first portion adapted to receive at least part of the engaging member and a second portion adapted to receive at least part of the compression member. 19. The apparatus according to claim 15, wherein the compression member contacts and interacts with the engaging member to preclude the second bone portion from rotating relative to the engaging member. 20. A process for repairing bone, the process comprising: a. providing a device for treating bone fractures, comprising: 1. a bone implant to be connected to a first bone portion and containing a transverse aperture; and2. a fastening assembly adapted to slide within the transverse aperture as a unit, and comprising a first member and a second member, the first member comprising a channel and a cooperation structure, wherein the second member nests partially within the channel of the first member;b. connecting the bone implant to the first bone portion;c. preparing at least one opening in the first bone portion corresponding in location and orientation to the first member and the second member;d. inserting the first member into the transverse aperture and engaging the second bone portion with the first member;e. inserting the second member into the transverse aperture and contacting the second bone portion with the second member; andf. adjusting the second member relative to the first member so that the second member contacts and interacts with the cooperation structure and with a portion of the implant to control sliding of the fastening assembly within the transverse aperture. 21. The apparatus according to claim 1, wherein the transverse aperture comprises a first circular aperture and a second circular aperture that overlaps the first circular aperture. 22. The apparatus according to claim 21, wherein the first circular aperture is larger than the second circular aperture. 23. The apparatus according to claim 21, wherein the first circular aperture is smaller than the second circular aperture. 24. A fracture compression assembly, comprising: a nail defining a transverse aperture;a first member for receipt within the transverse aperture, the first member configured to span a first bone portion and a fracture, and threadedly engage a second bone portion; anda second member for receipt within the transverse aperture, the second member configured to span the first bone portion and the fracture, and threadedly engage the second bone portion, the second member including a region for abutting the nail to limit advancement of the second member through the transverse aperture;the first member and the second member configured to interact when received within the transverse aperture such that rotation of the second member when the region of the second member abuts the nail and the second member is in engagement with the second bone portion causes the first member to move the second bone portion toward the first bone portion to compress the fracture. 25. The fracture compression assembly of claim 24, wherein the nail comprises an intramedullary nail. 26. The fracture compression assembly of claim 24, wherein the first member and the second member interact to limit rotation of the first bone portion relative to the second bone portion. 27. The fracture compression assembly of claim 24, wherein the first member is configured to receive the second member partially within a channel of an exterior surface of the first member. 28. The fracture compression assembly of claim 24, wherein the second member is configured for receipt within the transverse aperture side-by-side relative to the first member such that with the side-by-side first member and second member threadedly engaging the second bone portion the first member and second member act to limit rotation of the second bone portion relative to the first bone portion. 29. The fracture compression assembly of claim 24, wherein the first member and the second member are configured to slide as a unit within the transverse aperture. 30. A bone fracture compression assembly, comprising: a nail defining a transverse aperture;a first member for receipt within the transverse aperture, the first member configured to span a first bone portion and a fracture, and engage a second bone portion; anda second member for receipt within the transverse aperture, the second member configured to span the first bone portion and the fracture, and enter the second bone portion;the second member being configured for receipt within the transverse aperture side-by-side relative to the first member such that the members are confined to rotate as a unit. 31. The bone fracture compression assembly of claim 30, wherein the second member includes a region configured to abut the nail to limit advancement of the second member through the transverse aperture. 32. The bone fracture compression assembly of claim 31, wherein the second member is configured to move the second bone portion toward the first bone portion to compress the fracture by rotation of the second member when the region abuts the nail and when the first member engages the second bone portion. 33. The bone fracture compression assembly of claim 30, wherein the first member is configured to receive the second member partially within a channel of an exterior surface of the first member. 34. The bone fracture compression assembly of claim 30, wherein the first member and the second member are configured to slide as a unit when received side-by-side within the transverse aperture. 35. A method for fracture compression, comprising: positioning a nail relative to a first bone portion, the nail including a transverse aperture;advancing a first member through the transverse aperture, the first bone portion, and into a second bone portion such that the first member spans from the first bone portion to the second bone portion across a fracture; andadvancing a second member through the transverse aperture, the first bone portion, and into the second bone portion such that the second member spans from the first bone portion to the second bone portion across the fracture, the second member including a region for abutting the nail to limit advancement of the second member through the transverse aperture;the first member and the second member interacting when received within the transverse aperture such that rotating the second member when the region of the second member abuts the nail and the second member is in engagement with the second bone portion moves the second bone portion toward the first bone portion to compress the fracture. 36. The method for fracture compression of claim 35, wherein advancing the second member through the transverse aperture comprises disposing the second member at least partially within a channel of an exterior surface of the first member. 37. The method for fracture compression of claim 35, further comprising sliding the first member and the second member as a unit within the transverse aperture. 38. A method for fracture compression, comprising: positioning a nail relative to a first bone portion, the nail including a transverse aperture;advancing a first member through the transverse aperture, the first bone portion, a fracture, and into a second bone portion;advancing a second member through the transverse aperture, the first bone portion, the fracture, and into the second bone portion, the second member being side-by-side relative to the first member; andsliding the first member and the second member slide as a unit within the transverse aperture. 39. The method for fracture compression of claim 38, wherein advancing the second member through the transverse aperture comprises disposing the second member at least partially within a channel of an exterior surface of the first member. 40. The method for fracture compression of claim 38, wherein advancing the first member into the second bone portion and advancing the second member into the second bone portion limits rotation of the second bone portion relative to the first bone portion. 41. A fracture compression assembly, comprising: a nail defining a transverse aperture;a first member including a shaft sized to be received within the transverse aperture, the shaft of the first member, when received within the transverse aperture in use, spans a first bone portion and a fracture, and fixedly engages a second bone portion; anda second member including a shaft sized to be received within the transverse aperture, the shaft of the second member, when received within the transverse aperture in use, spans the first bone portion and the fracture, and fixedly engages the second bone portion, the second member including a region for abutting the nail to limit advancement of the second member through the transverse aperture;wherein the first and second members are configured to interact when both members are received within the transverse aperture such that rotation of the second member when the region of the second member abuts the nail and the second member is in engagement with the second bone portion causes the first member to move the second bone portion toward the first bone portion to compress the fracture.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (104)
Ralph James D. ; Tatar Steven, Acetabular cup having capped polyaxial locking screws.
Lowery Gary (Gainesville FL) Sherman Michael C. (Memphis TN) Ray ; III Eddie F. (Cordova TN) Coates Bradley J. (Cordova TN), Anterior cervical plating system.
Sutter Franz (Niederdorf CHX) Straumann Fritz (Waldenburg CHX) Raveh Joram (Oberbottigen CHX), Device comprising an implant and screws for fastening said implant to a bone, and a device for connecting two separated.
Faccioli Giovanni,ITX ; Venturini Daniele,ITX ; Lavini Franco,ITX ; Brivio Lodovico Renzi,ITX ; Veldhuijs Sander Ten,ITX, Intramedullary cavity nail and kit for the treatment of fractures of the hip.
Lawes Peter (Maidenhead GB2) Taylor Stephen (Basildon GB2) Adcock Philip J. (Great Wakering GB2), Intramedullary intertrochanteric fracture fixation appliance and fitting device.
Shuler Thomas E. (Apt. 205 ; 5607 Elmer St. Pittsburgh PA 15232) Latour ; Jr. Robert A. (202 Brooks St. Clemson SC 29631), Intramedullary rod for fracture fixation of femoral shaft independent of ipsilateral femoral neck fracture fixation.
Shuler Thomas E. (Pittsburgh PA) Latour ; Jr. Robert A. (Clemson SC), Intramedullary rod for fracture fixation of femoral shaft independent of ipsilateral femoral neck fracture fixation.
Durham Alfred A. ; Daily Robert L. ; Fandrich Gregory S. ; Terrill-Grisoni Lauralan ; Shappley Benjamin R., Modular intramedullary fixation system and insertion instrumentation.
Durham Alfred A. ; Daily Robert L. ; Fandrich Gregory S. ; Terrill-Grisoni Lauralan ; Shappley Benjamin R., Modular intramedullary fixation system and insertion instrumentation.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.