Surgical device for anastomosis
First Claim
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1. A device for creating an anastomosis between two layers of tissue, said device comprising:
- a) a shaft having proximal and distal ends, and an end effector attached to said distal end of said shaft, said end effector comprising a first and a second elongated fork having distal and proximal ends and a longitudinal axis therebetween, said first fork having a first tissue engaging surface and said second fork having a second tissue engaging surface, said end effector having an open position wherein at least said distal end of the forks are spaced from one another, and a closed position, wherein said tissue engaging surfaces are closely adjacent, said end effector further including a means for applying at least two spaced apart rows of tissue fasteners onto tissue substantially parallel to said longitudinal axis;
b) a cutting implement, said cutting implement movable between said two spaced apart rows of fasteners in a direction generally parallel to said longitudinal axis of said forks; and
c) a means for actuating said cutting implement such that said cutting implement cuts only between a proximal end and a distal end of said rows of tissue fasteners.
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Abstract
A device having a cutting implement movable in a direction generally parallel to a tissue surface and creating a cut line that does not extend to the proximal end of tissue adjacent the device is disclosed. The device has a cutting implement that emerges from a tissue engaging surface and cuts tissue only between a proximal and distal ends of the adjoining staple lines. A method is further provided for anastomosing two lumens without extending the passageway between them to the openings made for the forks of the anastomosis device.
1759 Citations
21 Claims
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1. A device for creating an anastomosis between two layers of tissue, said device comprising:
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a) a shaft having proximal and distal ends, and an end effector attached to said distal end of said shaft, said end effector comprising a first and a second elongated fork having distal and proximal ends and a longitudinal axis therebetween, said first fork having a first tissue engaging surface and said second fork having a second tissue engaging surface, said end effector having an open position wherein at least said distal end of the forks are spaced from one another, and a closed position, wherein said tissue engaging surfaces are closely adjacent, said end effector further including a means for applying at least two spaced apart rows of tissue fasteners onto tissue substantially parallel to said longitudinal axis;
b) a cutting implement, said cutting implement movable between said two spaced apart rows of fasteners in a direction generally parallel to said longitudinal axis of said forks; and
c) a means for actuating said cutting implement such that said cutting implement cuts only between a proximal end and a distal end of said rows of tissue fasteners. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for creating an anastomosis between two layers of tissue, said device comprising:
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a) a shaft having proximal and distal ends, and an end effector attached to said distal end of said shaft, said end effector comprising two elongated forks having distal and proximal ends and a longitudinal axis therebetween, each fork having a tissue engaging surface, said end effector having an open position wherein at least said distal end of the forks are spaced from one another, and a closed position, wherein said tissue engaging surfaces are closely adjacent, said end effector further including a means for applying at least two spaced apart rows of tissue fasteners onto tissue substantially parallel to said longitudinal axis;
b) a cutting implement, said cutting implement movable between said two spaced apart rows of fasteners in a direction generally parallel to said longitudinal axis of said forks; and
c) a mechanism for actuating said cutting implement such that said cutting implement cuts only between a proximal end and a distal end of said rows of tissue fasteners. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A device attachable to a surgical cutter and positionable adjacent tissue to be dissected, said device comprising:
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a) a housing having a tissue surface;
b) a cutting implement within said housing, said cutting implement movable in a direction generally parallel to said tissue surface; and
c) a track, said track adjacent said cutting implement, said track comprising an ascending cam portion for camming said cutting implement towards said tissue surface to expose said cutting implement. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification