CLIP APPLIER WITH MIGRATIONAL RESISTANCE FEATURES
First Claim
1. A surgical clip applier, comprising:
- a shaft;
first and second jaws formed on a distal end of the shaft and adapted to receive tissue therebetween;
a clip track extending through the shaft and adapted to retain a plurality of clips; and
a clip pusher disposed within the clip track and adapted to advance the plurality of clips through the clip track and into the first and second jaws, the clip pusher being biased against the clip track prior to distal advancement of the clip pusher to advance one of the plurality of clips into the first and second jaws such that movement of the clip pusher is prevented unless a force is applied to the clip pusher that is greater than a biasing force created between the clip pusher and the clip track, wherein the clip pusher has a width that is greater than a width of the clip track such that the clip pusher is biased within the clip track.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical clip applier and methods for applying surgical clips to a vessel, duct, shunt, etc., during a surgical procedure are provided. In one exemplary embodiment, a surgical clip applier is provided having a housing with a trigger movably coupled thereto and a shaft extending therefrom with opposed jaws formed on a distal end thereof. The trigger is adapted to advance a clip to position the clip between the jaws, and to move the jaws from an open position to a closed position to crimp the clip positioned therebetween. The surgical clip applier can include a variety of features to facilitate use of the device, including features to align a clip with the jaws, features to prevent unintentional migration of a clip, and features to prevent clip fallout during formation.
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Citations
12 Claims
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1. A surgical clip applier, comprising:
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a shaft; first and second jaws formed on a distal end of the shaft and adapted to receive tissue therebetween; a clip track extending through the shaft and adapted to retain a plurality of clips; and a clip pusher disposed within the clip track and adapted to advance the plurality of clips through the clip track and into the first and second jaws, the clip pusher being biased against the clip track prior to distal advancement of the clip pusher to advance one of the plurality of clips into the first and second jaws such that movement of the clip pusher is prevented unless a force is applied to the clip pusher that is greater than a biasing force created between the clip pusher and the clip track, wherein the clip pusher has a width that is greater than a width of the clip track such that the clip pusher is biased within the clip track. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A surgical clip applier, comprising:
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an elongate shaft having opposed jaws formed on a distal end thereof; a clip track extending through the shaft and adapted to retain a plurality of clips; and a feeder shoe slidably disposed within the clip track and adapted to advance the plurality of clips through the clip track, the feeder shoe having a deflectable tang formed thereon biased again the clip track, the feeder shoe being configured to resist unintentional movement of the feeder shoe by generating friction against the clip track through contact therewith before the feeder shoe is advanced, wherein the clip track includes at least one surface protrusion formed thereon adapted to engage with the deflectable tang on the feeder shoe. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification