Endoscopic surgical clip applier with wedge plate
First Claim
1. An apparatus for application of surgical clips to body tissue, the apparatus comprising:
- a handle assembly including a trigger and a drive bar reciprocally translatable by the trigger upon an actuation thereof; and
a shaft assembly extending distally from the handle assembly and defining a longitudinal axis, the shaft assembly including;
a housing defining a stationary ledge formed therein;
a plurality of surgical clips disposed within the housing;
a pair of jaws mounted adjacent a distal end portion of the housing, the jaws being movable between an open spaced-apart condition and a closed approximated condition;
a wedge plate reciprocally disposed within the housing, the wedge plate being movable between a distal position where a distal end thereof is disposed between the pair of jaws causing the pair of jaws to splay outwardly and a proximal position where the distal end thereof is free from between the pair of jaws such that the pair of jaws are free to close; and
a wedge plate lock disposed within the housing, the wedge plate lock being slidably supported for movement in an axial direction within the housing, together with the wedge plate, such that the wedge plate lock is moved distally by the wedge plate, against a bias, upon a movement of the wedge plate from the proximal position to the distal position, and such that the wedge plate lock engages the ledge of the housing to hold the wedge plate in the distal position.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for application of surgical clips to body tissue is provided and includes a handle assembly; a shaft assembly including a housing extending distally from the handle assembly and defining a longitudinal axis; a plurality of surgical clips disposed within the shaft assembly; a jaw mounted adjacent a distal end portion of the shaft assembly, the jaw being movable between an open spaced-apart condition and a closed approximated condition; and a pusher bar reciprocally disposed within the housing of the shaft assembly and being detachably connectable to the housing of the shaft assembly, the pusher bar being configured to load a distal-most surgical clip into the jaws during distal movement and remain connected to the housing of the shaft assembly and in a distally advanced position during an approximation of the jaws.
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Citations
35 Claims
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1. An apparatus for application of surgical clips to body tissue, the apparatus comprising:
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a handle assembly including a trigger and a drive bar reciprocally translatable by the trigger upon an actuation thereof; and a shaft assembly extending distally from the handle assembly and defining a longitudinal axis, the shaft assembly including; a housing defining a stationary ledge formed therein; a plurality of surgical clips disposed within the housing; a pair of jaws mounted adjacent a distal end portion of the housing, the jaws being movable between an open spaced-apart condition and a closed approximated condition; a wedge plate reciprocally disposed within the housing, the wedge plate being movable between a distal position where a distal end thereof is disposed between the pair of jaws causing the pair of jaws to splay outwardly and a proximal position where the distal end thereof is free from between the pair of jaws such that the pair of jaws are free to close; and a wedge plate lock disposed within the housing, the wedge plate lock being slidably supported for movement in an axial direction within the housing, together with the wedge plate, such that the wedge plate lock is moved distally by the wedge plate, against a bias, upon a movement of the wedge plate from the proximal position to the distal position, and such that the wedge plate lock engages the ledge of the housing to hold the wedge plate in the distal position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus for application of surgical clips to body tissue, the apparatus comprising:
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a handle assembly including; a trigger; a drive bar reciprocally translatable by the trigger upon an actuation thereof; and a biasing member configured and disposed to return the drive bar to a proximal position, wherein the handle assembly biasing member has a biasing force; and a shaft assembly extending distally from the handle assembly and defining a longitudinal axis, the shaft assembly including; a housing defining a stationary ledge formed therein; a plurality of surgical clips disposed within the housing; a pair of jaws mounted adjacent a distal end portion of the housing, the jaws being movable between an open spaced-apart condition and a closed approximated condition; a wedge plate reciprocally disposed within the housing, the wedge plate being movable between a distal position where a distal end thereof is disposed between the pair of jaws causing the pair of jaws to splay outwardly and a proximal position where the distal end thereof is free from between the pair of jaws such that the pair of jaws are free to close; and a wedge plate lock disposed within the housing, the wedge plate lock slidably supported for movement in an axial direction within the housing, together with the wedge plate, such that the wedge plate lock is moved distally by the wedge plate, against a biasing member, upon a movement of the wedge plate from the proximal position to the distal position, and such that the wedge plate lock engages the ledge of the housing to hold the wedge plate in the distal position, wherein the biasing member acting on the wedge plate lock has a biasing force less than the biasing force of the handle assembly biasing member; wherein the handle assembly biasing member assists the wedge plate lock in moving the wedge plate to a proximal position when the force of the biasing member acting on the wedge plate lock is insufficient. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus for application of surgical clips to body tissue, the apparatus comprising:
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a handle assembly including a trigger and a drive bar reciprocally translatable by the trigger upon an actuation thereof; and a shaft assembly extending distally from the handle assembly and defining a longitudinal axis, the shaft assembly including; a housing defining a stationary ledge formed therein; a plurality of surgical clips disposed within the housing; a pair of jaws mounted adjacent a distal end portion of the housing, the jaws being movable between an open spaced-apart condition and a closed approximated condition; a wedge plate reciprocally disposed within the housing, the wedge plate being movable between a distal position where a distal end thereof is disposed between the pair of jaws causing the pair of jaws to splay outwardly and a proximal position where the distal end thereof is free from between the pair of jaws such that the pair of jaws are free to close; and a lock slidably supported for movement in an axial direction within the housing, together with the wedge plate, wherein the lock is configured to slide distally, against a bias, wherein a portion thereof is configured to deflect laterally, when the wedge plate is moved from the proximal position to the distal position to engage the ledge of the housing and maintain the wedge plate in the distal position. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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Specification