Method and clamping apparatus for external fixation and stabilization
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/60
A61B-017/00
A61B-017/64
출원번호
US-0739542
(2015-06-15)
등록번호
US-9750535
(2017-09-05)
발명자
/ 주소
Mullaney, Michael W.
출원인 / 주소
Zimmer, Inc.
대리인 / 주소
Schwegman Lundberg & Woessner, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
78
초록▼
Clamping devices and methods for external fixation systems include a post component having a yaw axis and a clamping system secured to the post component and rotatable about the yaw axis. The clamping system includes a outer jaw and a inner jaw having an inner surface facing the outer jaw. The outer
Clamping devices and methods for external fixation systems include a post component having a yaw axis and a clamping system secured to the post component and rotatable about the yaw axis. The clamping system includes a outer jaw and a inner jaw having an inner surface facing the outer jaw. The outer and inner jaws together form an opening for receiving a fixation element of the external fixation system. The inner jaw and outer jaw have a roll axis alignable with a longitudinal axis of the fixation element. The clamping system and post component are rotatable about the roll axis. The inner jaw also includes a cylindrical outer-facing surface. The devices also include a base component having a cylindrical concave surface having a pitch axis. The concave surface of the base component interfaces with the cylindrical outer facing component on the inner jaw. The outer and inner jaws being rotatable relative to the base and the post component about the pitch axis.
대표청구항▼
1. An external fixation system comprising: a clamp including a pair of jaws forming an opening for receiving a fixation element; anda trigger system comprising a rotatable release lever, the release lever being rotatable to release the jaws into a self-maintained cocked condition for receiving the f
1. An external fixation system comprising: a clamp including a pair of jaws forming an opening for receiving a fixation element; anda trigger system comprising a rotatable release lever, the release lever being rotatable to release the jaws into a self-maintained cocked condition for receiving the fixation element between the jaws and to engage and force the jaws into a provisionally locked condition that prevents removal of the fixation element out from between the jaws, but allows the fixation element to slide and rotate relative to the jaws,wherein the trigger system comprises a biasing element that biases the release lever to force the jaws into the provisionally locked condition. 2. The system of claim 1, wherein the release lever pivotably attached to one of the jaws, and the biasing element biases the release lever to force the other of the jaws to pivot toward the one of the jaws to put the jaws into the provisionally locked condition. 3. The system of claim 2, wherein the release lever includes a graspable portion and a transversely extending bar that interfaces with the biasing element and with the other of the jaws. 4. The system of claim 3, wherein the bar slidingly engages the other of the jaws in a manner that forces the jaws into the provisionally locked condition. 5. The system of claim 2, wherein the release lever includes two grips and a bar extending transversely between the two grips, the bar interfacing with the biasing element and with the other of the jaws. 6. The system of claim 1, further comprising a tightening component configured in a manner that an action of tightening the tightening component locks the jaws in a locked condition that prevents removal of the fixation element from between the jaws, and prevents the fixation element from sliding and rotating relative to the jaws. 7. The system of claim 1, further comprising a biasing element biasing the jaws into the self-maintained cocked condition. 8. The system of claim 1, wherein, in the provisionally locked condition, at least a portion of the release lever mechanically interferes with displacement of the jaws relative to one another to prevent the jaws from displacing into the self-maintained cocked condition. 9. The system of claim 8, wherein the at least a portion of the release lever that mechanically interferes with the displacement of the first jaws is disposed between the jaws when the trigger system is in the provisionally locked condition. 10. The system of claim 1, further comprising: a post component having a yaw axis, the jaws being secured to the post component and rotatable about the yaw axis, and the opening being for receiving the fixation element along a roll axis approximately perpendicular to the yaw axis. 11. A clamping device for an external fixation system, the clamping device comprising: a first clamp comprising: a first pair of jaws forming an opening for receiving a first fixation element; anda first trigger system comprising a rotatable release lever, the release lever being rotatable to release the first pair of jaws into a self-maintained cocked condition for receiving the first fixation element between the first pair of jaws and to engage and move the first pair of jaws into a provisionally locked condition that prevents removal of the first fixation element out from between the first pair of jaws, but allows the first fixation element to slide and rotate relative to the first pair of jaws; anda second clamp comprising a second pair of jaws, the second clamp coupled to the first clamp, the coupled first and second clamps being configured to maintain the first fixation element and a second fixation element of the external fixation system in a position relative to each other,wherein the first trigger system comprises a biasing element that biases the release lever to move the first pair of jaws into the provisionally locked condition. 12. The clamping device of claim 11, wherein the second clamp comprises a second trigger system that releases the second pair of jaws from a self-maintained cocked condition for receiving the second fixation element between the second pair of jaws into a provisionally locked condition that prevents removal of the second fixation element out from between the second pair of jaws, but allows the second fixation element to slide and rotate relative to the second pair of jaws. 13. The clamping device of claim 11, wherein the release lever is pivotably attached to one jaw of the first pair of jaws, and the biasing element biases the release lever to move the other jaw of the first pair of jaws to pivot toward the one jaw of the first pair of jaws to put the first pair of jaws into the provisionally locked condition. 14. The clamping device of claim 13, wherein the release lever includes a graspable portion and a transversely extending bar that interfaces with the biasing element and with the other jaw of the first pair of jaws. 15. The clamping device of claim 14, wherein the bar slidingly engages the other jaw of the first pair of jaws in a manner that moves the first pair of jaws into the provisionally locked condition. 16. The clamping device of claim 13, wherein the release lever includes two grips and a bar extending transversely between the two grips, the bar interfacing with the biasing element and with the other jaw of the first pair of jaws. 17. The clamping device of claim 11, further comprising a tightening component configured in a manner that an action of tightening the tightening component locks the first pair of jaws in a locked condition that prevents removal of the first fixation element from between the first pair of jaws, and prevents the first fixation element from sliding and rotating relative to the first pair of jaws, and locks the second pair of jaws in a locked condition that prevents removal of the second fixation element from between the second pair of jaws, and prevents the second fixation element from sliding and rotating relative to the second pair of jaws. 18. The clamping device of claim 11, further comprising a biasing element biasing the first pair of jaws into the open self-maintained cocked condition. 19. The clamping device of claim 11, wherein, in the provisionally locked condition, at least a portion of the release lever mechanically interferes with displacement of the first pair of jaws relative to one another to prevent the first pair of jaws from displacing to the self-maintained cocked condition. 20. The clamping device of claim 19, wherein the at least a portion of the release lever that mechanically interferes with the displacement of the first pair of jaws is disposed between the first pair of jaws when the trigger system is in the provisionally locked condition. 21. The clamping device of claim 11, further comprising: a post component having a yaw axis, the first and second clamps being secured to the post component and rotatable about the yaw axis.
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