Orthopaedic surgical system for determining joint forces of a patients knee joint
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/56
A61B-005/103
A61F-002/46
A61B-017/02
A61B-090/00
출원번호
US-0436854
(2012-03-31)
등록번호
US-10206792
(2019-02-19)
발명자
/ 주소
Sherman, Jason T.
Rock, Michael J.
Deffenbaugh, Daren L.
Moore, Kyle S.
출원인 / 주소
DEPUY IRELAND UNLIMITED COMPANY
대리인 / 주소
Barnes & Thornburg LLP
인용정보
피인용 횟수 :
0인용 특허 :
178
초록▼
An orthopedic surgical system includes a sensor module for determining the joint force of a patient's knee joint and an adaptor for coupling various tibial trialing components to the sensor module. The sensor module includes a tibial paddle to which the adaptor is configured to couple. The adaptor a
An orthopedic surgical system includes a sensor module for determining the joint force of a patient's knee joint and an adaptor for coupling various tibial trialing components to the sensor module. The sensor module includes a tibial paddle to which the adaptor is configured to couple. The adaptor and tibial paddle include structures that control the orientation at which the adaptor is attachable to the tibial paddle. Some tibial trialing components may be positioned over the adaptor in a mobile orientation that facilities rotation of the tibial trialing component relative to the tibial paddle or a fixed orientation that restricts the rotation of the tibial trialing component.
대표청구항▼
1. An orthopaedic surgical system for determining a joint force of a patient's joint, the orthopaedic surgical system comprising: a sensor module comprising a tibial paddle shaped to be positioned between a proximal end of a patient's tibia and a distal end of a patient's femur, an elongated handle
1. An orthopaedic surgical system for determining a joint force of a patient's joint, the orthopaedic surgical system comprising: a sensor module comprising a tibial paddle shaped to be positioned between a proximal end of a patient's tibia and a distal end of a patient's femur, an elongated handle secured to the tibial paddle, and a sensor array positioned in the tibial paddle and configured to generate sensor signals indicative of a joint force between the patient's tibia and femur, the tibial paddle including an inner sidewall defining a centrally-located aperture, anda surgical instrument attachable and detachable from the tibial paddle of the sensor module, the surgical instrument including a plurality of lower retainer clips receivable in the centrally-located aperture to attach the surgical instrument to the tibial paddle. 2. The orthopaedic surgical system of claim 1, wherein the surgical instrument further comprises a hub and each of the plurality of lower retainer clips comprises (i) a stem extending downwardly from the hub and (ii) a lip extending outwardly at a distal end of each stem, the lip of each lower retainer clip being configured to engage the inner sidewall of the centrally-located aperture of the tibial paddle to secure the surgical instrument thereto. 3. The orthopaedic surgical system of claim 1, wherein the tibial paddle further includes a first alignment aperture and a second alignment aperture defined in the tibial paddle, and wherein the surgical instrument comprises a hub from which the plurality of lower retainer clips extend downwardly, a first alignment tab extending downwardly from the hub, and a second alignment tab extending downwardly from the hub, the first alignment tab being configured to be received in the first alignment aperture and the second alignment tab being configured to be received in the second alignment aperture when the surgical instrument is coupled to the tibial paddle of the sensor module. 4. The orthopaedic surgical system of claim 3, wherein the first alignment aperture is located toward an anterior side of the tibial paddle, the second alignment aperture is located toward a posterior side of the tibial paddle, and the centrally-located aperture is located between the first and second alignment apertures. 5. The orthopaedic surgical system of claim 3, wherein each of the first and second alignment apertures are defined by a corresponding inner sidewall of the tibial paddle, the corresponding inner sidewalls being curved in a plane defined by the tibial paddle. 6. The orthopaedic surgical system of claim 3, wherein each of the first and second alignment tabs are keyed such that the surgical instrument is attachable to the tibial paddle in a single orientation. 7. The orthopaedic surgical system of claim 6, wherein the first alignment tab is larger than the second alignment tab. 8. The orthopaedic surgical system of claim 7, wherein the first alignment tab has a greater length than the second alignment tab. 9. The orthopaedic surgical system of claim 7, wherein the first alignment aperture has a larger opening on a surface of the tibial paddle than the second alignment aperture. 10. The orthopaedic surgical system of claim 9, wherein the hub of the surgical instrument has a circular shape, the first alignment aperture is located toward an anterior side of the tibial paddle, the second alignment aperture is located toward a posterior side of the tibial paddle, and the centrally-located aperture is located between the first and second alignment apertures. 11. The orthopaedic surgical system of claim 3, wherein the hub of the surgical instrument has a circular shape and the surgical instrument further comprises an anti-rotation protrusion extending from the hub along an axis that is parallel to a plane defined by the tibial paddle when the surgical instrument is coupled to the tibial paddle. 12. The orthopaedic surgical system of claim 3, wherein each of the first and second alignment tabs comprise a first and second angled sidewall and each of the first and second alignment apertures comprise a first and second angled sidewall, the angled sidewalls of the first and second alignment tabs and the first and second alignment apertures cooperating to provide an amount of lift-off force to detach the surgical instrument from the tibial paddle in response to a reference amount of torque being applied to the surgical instrument. 13. The orthopaedic surgical system of claim 12, wherein the inner sidewall of the tibial paddle comprises an angled section configured to apply inwardly an amount of force to the plurality of lower retainer clips in response to the lift-off force. 14. The orthopaedic surgical system of claim 1, wherein the surgical instrument includes an adaptor comprising a hub from which the plurality of lower retainer clips extend downwardly and further comprising a plurality of upper retainer clips extending upwardly from the hub. 15. The orthopaedic surgical system of claim 14, wherein the upper retainer clips are shaped such that the upper retainer clips are not insertable into the centrally-located aperture of the tibial paddle. 16. The orthopaedic surgical system of claim 14, wherein the adaptor further comprises an anti-rotation protrusion extending from the hub along an axis that is parallel to a plane defined by the tibial paddle when the adaptor is coupled to the tibial paddle. 17. The orthopaedic surgical system of claim 14, wherein the adaptor is secured to another orthopaedic surgical instrument. 18. The orthopaedic surgical system of claim 1, further comprising a tibial trialing component that is positionable over the surgical instrument, the tibial trialing component including an inner sidewall defining a first aperture and a second aperture in fluid communication with the first aperture, the first aperture being configured to receive the hub of the surgical instrument, and the second aperture being configured to receive the anti-rotation protrusion when the tibial trialing component is positioned over the surgical instrument. 19. The orthopaedic surgical system of claim 18, wherein the tibial trialing component is positionable over the surgical instrument in a first orientation that allows the tibial trialing component to rotate relative to the tibial paddle and a second orientation that restricts rotation of the tibial trialing component relative to the tibial paddle. 20. The orthopaedic surgical system of claim 19, wherein the anti-rotation protrusion is received in the second aperture when the tibial trialing component is positioned over the surgical instrument in the first orientation, the second aperture being sized to restrict rotation of the tibial trialing component relative to the tibial paddle. 21. The orthopaedic surgical system of claim 18, wherein the tibial trialing component includes a third aperture in fluid communication with the first aperture, the second aperture being (i) configured to receive the anti-rotation protrusion when the tibial trialing component is positioned over the surgical instrument in the second orientation and (ii) sized to allow rotation of the tibial trialing component relative to the tibial paddle. 22. An orthopaedic surgical system for determining a joint force of a patient's joint, the orthopaedic surgical system comprising: a sensor module comprising a tibial paddle shaped to be positioned between a proximal end of a patient's tibia and a distal end of a patient's femur, an elongated handle secured to the tibial paddle, and a sensor array position in the tibial paddle and configured to generate sensor signals indicative of a joint force between the patient's tibia and femur, the tibial paddle including an inner sidewall defining a centrally-located aperture,an adaptor attachable and detachable from the tibial paddle of the sensor module, the adaptor including a hub, a plurality of lower retainer clips extending downwardly from the hub and receivable in the centrally-located aperture to attach the adaptor to the tibial paddle, and a plurality of upper retainer clips extending upwardly from the hub and sized such that the plurality of upper retainer clips are not receivable in the centrally-located aperture, anda tibial trialing component that is positionable over the adaptor in a first orientation that limits rotation of the tibial trialing component to rotate relative to the tibial paddle and a second orientation that allows rotation of the tibial trialing component relative to the tibial paddle. 23. The orthopaedic surgical system of claim 22, wherein the adaptor further comprises an anti-rotation protrusion extending from the hub along an axis that is parallel to a plane defined by the tibial paddle when the adaptor is coupled to the tibial paddle, and the tibial trialing component comprises an inner sidewall defining a first aperture sized to restrict rotation of the tibial trialing component relative to the tibial paddle,wherein the anti-rotation protrusion is received in the first aperture when the tibial trialing component is positioned over the adaptor in the first orientation. 24. The orthopaedic surgical system of claim 22, wherein the adaptor further comprises an anti-rotation protrusion extending from the hub along an axis that is parallel to a plane defined by the tibial paddle when the adaptor is coupled to the tibial paddle, and the tibial trialing component comprises an inner sidewall defining a first aperture sized to allow rotation of the tibial trialing component relative to the tibial paddle, andwherein the anti-rotation protrusion is received in the first aperture when the tibial trialing component is positioned over in the second orientation. 25. The orthopaedic surgical system of claim 1, further comprising a locking device configured to prevent relative rotation between the sensor module and the surgical instrument.
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