Approximating apparatus for surgical jaw structure
First Claim
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1. Apparatus for approximating jaw structure of surgical instrumentation comprising:
- a tubular endoscopic housing defining a longitudinal axis, a distal end and a proximal end, said housing having an axial bore in said distal end;
first jaw structure extending from said distal end of said endoscopic housing and stationary with respect thereto, said first jaw structure having a distal working end and a proximal end;
second jaw structure disposed in spaced relation to and connected with said first jaw structure, said second jaw structure having a distal working end for substantially parallel working interaction with said first jaw structure and a proximal end, said first and second jaw structure being disposed substantially parallel to the longitudinal axis of the surgical instrumentation and interconnected for substantially parallel approximation;
approximating means, at least partially disposed in said axial bore, having camming structure for camming said second jaw structure in substantially parallel relation with respect to said first jaw structure to permit working interaction between said distal working ends of said first and second jaw structure; and
tissue stop means disposed proximally from said distal working ends of said jaw structures for maintaining captured tissue within said distal working ends, wherein said approximating means includes;
a camming plate axially slidable within said axial bore, said camming plate having a first and second camming slot formed therein;
a first camming pin disposed in said first camming slot and transversely mounted in the proximal end of said second jaw structure, said first camming pin engaging transverse slots in said endoscopic housing to restrict axial movement of said distal working end of said second jaw structure;
a second camming pin disposed in said second camming slot and transversely mounted parallel to said first camming pin in the proximal end of said second jaw structure such that axial movement of said camming plate relative to said endoscopic housing causes substantially parallel approximation of said distal working ends of said first and second jaw structure.
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Abstract
Approximating apparatus for surgical jaw structure is provided which effects substantially parallel approximation of first and second surgical jaw structure to permit substantially parallel working interaction therebetween. The approximating apparatus includes camming structure for engaging at least one movable jaw of the surgical jaw structure to bias that jaw toward or away from a second jaw structure in a substantially parallel manner. A tissue stop may be provided to more easily guide and protect tissue captured by the jaw structure.
1823 Citations
15 Claims
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1. Apparatus for approximating jaw structure of surgical instrumentation comprising:
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a tubular endoscopic housing defining a longitudinal axis, a distal end and a proximal end, said housing having an axial bore in said distal end; first jaw structure extending from said distal end of said endoscopic housing and stationary with respect thereto, said first jaw structure having a distal working end and a proximal end; second jaw structure disposed in spaced relation to and connected with said first jaw structure, said second jaw structure having a distal working end for substantially parallel working interaction with said first jaw structure and a proximal end, said first and second jaw structure being disposed substantially parallel to the longitudinal axis of the surgical instrumentation and interconnected for substantially parallel approximation; approximating means, at least partially disposed in said axial bore, having camming structure for camming said second jaw structure in substantially parallel relation with respect to said first jaw structure to permit working interaction between said distal working ends of said first and second jaw structure; and tissue stop means disposed proximally from said distal working ends of said jaw structures for maintaining captured tissue within said distal working ends, wherein said approximating means includes; a camming plate axially slidable within said axial bore, said camming plate having a first and second camming slot formed therein; a first camming pin disposed in said first camming slot and transversely mounted in the proximal end of said second jaw structure, said first camming pin engaging transverse slots in said endoscopic housing to restrict axial movement of said distal working end of said second jaw structure; a second camming pin disposed in said second camming slot and transversely mounted parallel to said first camming pin in the proximal end of said second jaw structure such that axial movement of said camming plate relative to said endoscopic housing causes substantially parallel approximation of said distal working ends of said first and second jaw structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 15)
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10. Apparatus for approximating jaw structure of surgical instrumentation comprising:
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a tubular endoscopic housing defining a longitudinal axis, a distal end and a proximal end, said housing having an axial bore in said distal end; first jaw structure extending from said distal end to said endoscopic housing and stationary with respect thereto, said first jaw structure having a distal working end and a proximal end; second jaw structure disposed in spaced relation to and connected with said first jaw structure, said second jaw structure having a distal working end for substantially parallel working interaction with said first jaw structure and a proximal end, said first and second jaw structure being disposed substantially parallel to the longitudinal axis of the surgical instrumentation and interconnected for substantially parallel approximation; and approximating means, at least partially disposed in said axial bore, having camming structure for camming said second jaw structure in substantially parallel relation with respect to said first jaw structure to permit working interaction between said distal working ends of said first and second jaw structure; and tissue stop means disposed proximally from said distal working ends of said jaw structures for maintaining captured tissue within said distal working ends, wherein said working ends of said first and second jaw structure collectively comprise tissue measuring structure. - View Dependent Claims (11, 12)
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Specification