Endoscopic surgical clip applier
First Claim
1. An apparatus for application of surgical clips to body tissue, the apparatus comprising:
- a handle assembly;
a shaft assembly including a housing extending distally from the handle assembly and defining a longitudinal axis, the housing including a fixed boss provided therein;
a plurality of surgical clips disposed within the shaft assembly;
a pair of jaws mounted adjacent a distal end portion of the shaft assembly, the pair of jaws 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, wherein the pusher bar includes a first spring clip fixedly supported thereon that is configured to detachably snap onto the boss provided in the housing of the shaft assembly, the pusher bar configured to contact a distal-most surgical clip to load the distal-most surgical clip into the pair of jaws during distal movement and remain connected to the boss of the housing of the shaft assembly and to remain in a distally advanced position during an approximation of the pair of jaws, and wherein the first spring clip includes a pair of spaced apart tines and defines a concave recess formed in an inner surface of each of the pair of spaced apart tines, wherein the concave recesses are configured to receive the boss.
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
15 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; a shaft assembly including a housing extending distally from the handle assembly and defining a longitudinal axis, the housing including a fixed boss provided therein; a plurality of surgical clips disposed within the shaft assembly; a pair of jaws mounted adjacent a distal end portion of the shaft assembly, the pair of jaws 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, wherein the pusher bar includes a first spring clip fixedly supported thereon that is configured to detachably snap onto the boss provided in the housing of the shaft assembly, the pusher bar configured to contact a distal-most surgical clip to load the distal-most surgical clip into the pair of jaws during distal movement and remain connected to the boss of the housing of the shaft assembly and to remain in a distally advanced position during an approximation of the pair of jaws, and wherein the first spring clip includes a pair of spaced apart tines and defines a concave recess formed in an inner surface of each of the pair of spaced apart tines, wherein the concave recesses are configured to receive the boss. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of applying surgical clips to body tissue, comprising the steps of:
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providing an apparatus for application of surgical clips to body tissue including; a handle assembly; a shaft assembly including a housing extending distally from the handle assembly and defining a longitudinal axis, the housing including a fixed boss provided therein; a plurality of surgical clips disposed within the shaft assembly; a pair of jaws mounted adjacent a distal end portion of the shaft assembly, the pair of jaws 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, wherein the pusher bar includes a first spring clip fixedly supported thereon that is configured to detachably snap onto the boss provided in the housing of the shaft assembly, the pusher bar configured to contact a distal-most surgical clip to load the distal-most surgical clip into the pair of jaws during distal movement and remain connected to the boss of the housing of the shaft assembly and to remain in a distally advanced position during an approximation of the pair of jaws, wherein the first spring clip includes a pair of spaced apart tines and defines a concave recess formed in an inner surface of each of the pair of spaced apart tines, wherein the concave recesses are configured to receive the boss; advancing the pusher bar within the housing of the shaft assembly; loading a distal-most surgical clip into the pair of jaws; connecting the first spring clip to the boss provided in the housing of the shaft assembly; and approximating the pair of jaws while maintaining the connection of the first spring clip to the boss, thereby maintaining the pusher bar in the distally advanced position during approximation of the pair of jaws, wherein approximation of the pair of jaws forms the distal-most surgical clip. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus for application of surgical clips to body tissue, the apparatus comprising:
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a handle assembly; a shaft assembly including a housing extending distally from the handle assembly and defining a longitudinal axis, the housing includes a fixed boss provided therein; a plurality of surgical clips disposed within the shaft assembly; a pair of jaws mounted adjacent a distal end portion of the shaft assembly, the pair of jaws 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 configured to detachably snap onto the boss of the housing of the shaft assembly when in a distally advanced position, the pusher bar being configured to contact a distal-most surgical clip and progress to the distally advanced position to load the distal-most surgical clip into the pair of jaws during distal movement and remain connected to the boss of the housing of the shaft assembly and in the distally advanced position during an approximation of the pair of jaws, wherein the pusher bar includes a spring clip fixedly connected thereto and being configured to detachably snap connect the pusher bar to the boss of the housing of the shaft assembly, and wherein the spring clip includes a pair of spaced apart tines and defines a concave recess formed in an inner surface of each of the pair of spaced apart tines, wherein the concave recesses are configured to receive the boss. - View Dependent Claims (15)
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Specification