IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0315535
(2011-12-09)
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등록번호 |
US-9149296
(2015-10-06)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Schwegman Lundberg & Woessner, P.A.
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
57 |
초록
▼
A clamp includes an opening structurally arranged to receive a fixation element with a cam driven jaw. The clamping assembly includes a first jaw and a second jaw disposed relative to the first jaw. The first and second jaws may be cooperatively positioned to receive the fixation element. A sliding
A clamp includes an opening structurally arranged to receive a fixation element with a cam driven jaw. The clamping assembly includes a first jaw and a second jaw disposed relative to the first jaw. The first and second jaws may be cooperatively positioned to receive the fixation element. A sliding cam is configured to displace relative the first and second jaws. The sliding cam may be associated with the first and second jaws to force the first jaw to vertically displace relative to the second jaw. In one aspect, the sliding cam is structured to vertically displace the first jaw enough to permit an external fixation element to be received between the first and second jaws.
대표청구항
▼
1. A clamping assembly configured to secure a fixation element of an external fixation assembly, comprising: a first jaw comprising at least one projection;a second jaw operatively connected to the first jaw by at least one aperture in the second jaw in which the at least one projection is received,
1. A clamping assembly configured to secure a fixation element of an external fixation assembly, comprising: a first jaw comprising at least one projection;a second jaw operatively connected to the first jaw by at least one aperture in the second jaw in which the at least one projection is received, the first and second jaws being cooperatively positioned to receive the fixation element therebetween; anda sliding cam slidably attached to the second jaw, the sliding cam having a guide cam slot engaging the at least one projection of the first jaw, wherein moving the sliding cam relative to the second jaw moves the first jaw relative to the second jaw from an open condition for receiving the fixation element between the jaws to a clamping condition for capturing the fixation element between the jaws. 2. The clamping assembly of claim 1, further comprising a latch selectively disposed between the first and second jaws, the latch being moveable relative to the first and second jaws to position a wedge portion of the latch between respective portions of the first and the second jaws to physically limit the range the first jaw can travel relative to the second jaw to secure the first and second jaws in the clamping condition. 3. The clamping assembly of claim 1, wherein the guide cam slot includes an arcuate portion and a linear portion. 4. The clamping assembly of claim 1, wherein the second jaw comprises wall portions, the first jaw being disposed between the wall portions, the sliding cam being slidably attached to the wall portions. 5. The clamping assembly of claim 4, further comprising a latch selectively disposed between the first and second jaws, the latch being moveable relative to the first and second jaws to position a wedge portion of the latch between respective portions of the first and the second jaws to physically limit the range the first jaw can travel relative to the second jaw to secure the first and second jaws in the clamping condition. 6. The clamping assembly of claim 5, wherein the latch is disposed between the wall portions. 7. The clamping assembly of claim 6, wherein the latch comprises an L-shape comprising: a first portion; anda second portion extending perpendicularly from the first portion, the second portion being divided into two legs by an aperture in the second portion. 8. The clamping assembly of claim 7, wherein the first portion of the latch comprises the wedge portion. 9. The clamping assembly of claim 8, wherein the two legs of the second portion of the latch are respectively operatively attached to the walls of the second jaw via a biasing element, the biasing element acting to bias the wedge portion of the latch between respective portions of the first and the second jaws to physically limit the range the first jaw can travel relative to the second jaw to secure the first and second jaws in the clamping condition. 10. The clamping assembly of claim 9, wherein the latch is arranged relative to the first and second jaws such that the wedge portion of the latch is positioned adjacent respective aft ends of the first and second jaws and respective ends of the two legs of the second portion of the latch are positioned adjacent respective forward ends of the first and second jaws, and the latch being moveable relative to the first and second jaws to position the wedge portion of the latch between the respective aft ends of the first and the second jaws to physically limit the range the first jaw can travel relative to the second jaw to secure the first and second jaws in the clamping condition. 11. The clamping assembly of claim 10, wherein the sliding cam is configured to slide between the respective forward and aft ends of the first and second jaws, the latch being operatively attached to the sliding cam such that only movement of the sliding cam toward the respective forward ends of the first and second jaws causes the latch to move relative to the first and second jaws. 12. The clamping assembly of claim 4, wherein the second jaw comprises two wall portions, the sliding cam comprising: a first cam slider slidably attached to one of the two wall portions; anda second cam slider slidably attached to the other of the two wall portions. 13. The clamping assembly of claim 12, wherein the first and second cam sliders are slidably attached to the two wall portions by respective dovetail grooves in each of the two wall portions. 14. The clamping assembly of claim 12, wherein the first and second cam sliders are slidably attached to the two wall portions by respective dovetail grooves in each of the two wall portions. 15. The clamping assembly of claim 4, wherein the second jaw comprises two wall portions, the sliding cam comprising: a first cam slider slidably attached to one of the two wall portions; anda second cam slider slidably attached to the other of the two wall portions. 16. The clamping assembly of claim 1, further comprising a biasing member that acts to bias the first jaw toward the clamping condition. 17. The clamping assembly of claim 1, wherein the second jaw includes a wall portion having at least one aperture formed therein, the projection received in the at least one aperture of the wall portion of the second jaw and the guide cam slot, and the aperture of the wall portion of the second jaw and the guide cam slot being configured to guide displacement of the first jaw relative to the second jaw from the open condition to the clamping condition. 18. The clamping assembly of claim 17, wherein the first jaw has a curved bore portion, and wherein the aperture of the wall portion of the second jaw is curved and disposed to have a center coincident with a center of the curved bore portion. 19. The clamping assembly of claim 18, wherein the curved bore portion comprises a semi-spherical bore. 20. The clamping assembly of claim 1, wherein the guide cam slot is configured to force the first jaw to vertically displace relative to the second jaw. 21. A clamping assembly configured to secure fixation elements of an external fixation assembly, comprising: a first clamp comprising:a first jaw comprising at least one projection;a second jaw operatively connected to the first jaw by at least one aperture in the second jaw in which the at least one projection is received, the first and second jaws being cooperatively positioned to receive a first fixation element therebetween; anda sliding cam slidably attached to the second jaw, the sliding cam having a guide cam slot engaging the at least one projection of the first jaw, wherein moving the sliding cam relative to the second jaw moves the first jaw relative to the second jaw from an open condition for receiving the first fixation element between the jaws to a clamping condition for capturing the first fixation element between the jaws; anda second clamp comprising jaws moveable relative to one another between an open condition arranged to receive a second fixation element and a provisionally locked condition arranged to capture the second fixation element. 22. The clamping assembly of claim 21, further comprising a latch selectively disposed between the first and second jaws, the latch being moveable relative to the first and second jaws to position a wedge portion of the latch between respective portions of the first and the second jaws to physically limit the range the first jaw can travel relative to the second jaw to secure the first and second jaws in the provisionally locked condition. 23. The clamping assembly of claim 21, wherein the guide cam slot includes an arcuate portion and a linear portion. 24. The clamping assembly of claim 21, wherein the second jaw comprises wall portions, the first jaw being disposed between the wall portions, the sliding cam being slidably attached to the wall portions. 25. The clamping assembly of claim 24, wherein the wall portions comprise slots formed therein, the slots being disposed to guide movement of the first jaw. 26. The clamping assembly of claim 21, wherein the first and second jaws comprise respective forward and aft ends, the respective forward ends of the first and second jaws being configured to receive the first fixation element, and the sliding cam being configured to slide between the respective forward and aft ends of the first and second jaws. 27. The clamping assembly of claim 1, wherein the first and second jaws comprise respective forward and aft ends, the respective forward ends of the first and second jaws being configured to receive the fixation element, and the sliding cam being configured to slide between the respective forward and aft ends of the first and second jaws.
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