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 an elongate shaft extending therefrom
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 an elongate 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.
대표청구항▼
1. A handle assembly, comprising: a handle housing having a trigger movable in a first direction from a fully open position to a fully closed position, and a second direction from the fully closed position to the fully open position; anda pawl and ratchet disposed within the handle housing and opera
1. A handle assembly, comprising: a handle housing having a trigger movable in a first direction from a fully open position to a fully closed position, and a second direction from the fully closed position to the fully open position; anda pawl and ratchet disposed within the handle housing and operatively associated with the trigger, the pawl being pivotally disposed about a fixed pivot point with the housing and the ratchet having a notch positioned between a plurality of teeth and an end tooth;wherein, when the pawl is engaged with the plurality of teeth the ratchet limits movement of the trigger to the first direction, and when the pawl is disposed within the notch the ratchet allows the trigger to be selectively moved in both the first and second directions such that the trigger can move from a partially closed position directly to the fully open position without first being moved to the fully closed position. 2. The handle assembly of claim 1, wherein the ratchet is formed on a trigger insert that is coupled to and moves with the trigger. 3. The handle assembly of claim 1, wherein the plurality of teeth are adapted to prevent rotation of the pawl relative thereto, and the notch is adapted to allow rotation of the pawl relative thereto. 4. The handle assembly of claim 1, wherein each tooth of the plurality of teeth has a size that is less than a size of the end tooth. 5. The handle assembly of claim 1, wherein the pawl is configured to emit an audible sound upon engagement of the pawl with the plurality of teeth, and wherein the pawl is configured to emit a different audible sound upon engagement of the pawl with the end tooth. 6. A handle assembly, comprising: a pawl disposed within a handle housing and configured to rotate about a fixed pivot point within the handle housing; anda ratchet disposed within the handle housing and coupled to a movable trigger, the ratchet having a notch positioned between a plurality of teeth and an end tooth, and the ratchet being configured to move with the trigger relative to the handle housing such that the ratchet is in engagement with the pawl when the trigger is moved between the fully open position and the fully closed position;wherein the pawl and ratchet are configured to allow movement of the trigger from a partially closed position directly to a fully open position without first being moved to a fully closed position, andwherein, when the pawl is engaged with the plurality of teeth the ratchet limits movement of the trigger to a first direction, and when the pawl is disposed within the notch the ratchet allows the trigger to be selectively moved in both the first direction and a second opposite direction. 7. The handle assembly of claim 6, wherein the ratchet is formed on a trigger insert having a portion extending into the movable trigger. 8. The handle assembly of claim 6, wherein the pawl and ratchet are configured to emit different audible sounds to indicate a position of the trigger. 9. The handle assembly of claim 6, wherein each tooth of the plurality of teeth has a size that is less than a size of the end tooth. 10. A handle assembly, comprising: a pawl disposed within a handle housing and configured to rotate about a fixed pivot point within the handle housing; anda ratchet disposed within the handle housing and coupled to a movable trigger, the ratchet having a notch positioned between a plurality of teeth and an end tooth, and the ratchet being configured to move with the trigger relative to the handle housing such that the ratchet is in engagement with the pawl when the trigger is moved between a fully open position and a fully closed position;wherein the pawl and ratchet are configured to allow movement of the trigger from a partially closed position directly to the fully open position without first being moved to the fully closed position, andwherein the plurality of teeth prevent rotation of the pawl to limit movement of the pawl to a first direction when the pawl is engaged with the plurality of teeth, and the notch allows free rotation of the pawl to allow selective movement of the pawl from the notch in the first direction and in a second opposition direction when the pawl is disposed within the notch. 11. The handle assembly of claim 10, wherein the ratchet is formed on a trigger insert having a portion extending into the movable trigger. 12. The handle assembly of claim 10, wherein the pawl and ratchet are configured to emit different audible sounds to indicate a position of the trigger. 13. The handle assembly of claim 10, wherein each tooth of the plurality of teeth has a size that is less than a size of the end tooth. 14. A surgical clip applier, comprising: an elongate member having opposed jaws formed on a distal end thereof;a handle housing disposed on a proximal end of the elongate member;a trigger movably coupled to the handle housing and configured to move the jaws between a fully open position and a fully closed position; anda rotatable pawl and a ratchet disposed within the handle housing, the ratchet being coupled to the trigger and configured to move with the trigger against the pawl as the trigger moves the jaws between the fully open position and the fully closed position;wherein the ratchet is formed on a trigger insert disposed within the handle housing and having a portion extending into the trigger, the ratchet being configured to allow the trigger to move the jaws from a partially closed position, in which the ratchet is engaged with the pawl, directly to the fully open position without first moving to the fully closed position. 15. The surgical clip applier of claim 14, wherein the rotatable pawl is rotatably disposed about a fixed pivot point within the housing. 16. The surgical clip applier of claim 14, wherein the pawl and ratchet are configured to emit at least two different audible sounds. 17. The surgical clip applier of claim 14, wherein the ratchet has a plurality of teeth that engage with the pawl when the trigger moves the jaws from the fully opened position to the partially closed position, a notch that receives the pawl when the trigger is in the partially closed position, and an end tooth that engages the pawl when the trigger is in the fully closed position.
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이 특허에 인용된 특허 (212)
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