SURGICAL INSTRUMENT FOR PROGRESSIVELY STAPLING AND INCISING TISSUE
First Claim
1. An instrument for stapling and cutting body tissue comprising:
- a) a clamping jaw including an anvil, a housing rotatably mounted on the anvil, and a pusher rotatably mounted within the housing, wherein the anvil defines a slot and at least one pair of staple forming cups adjacent the slot;
b) a handle having a trigger operatively connected to the clamping jaw for actuating the clamping jaw; and
c) a staple cartridge within the housing, the staple cartridge including at least one staple aligned with the pair of forming cups, a driver slidably mounted in the staple cartridge, aligned with the at least one staple, and coupled to the pusher such that the driver forces the staple into the forming cups to staple the body tissue as the pusher rotates toward the anvil, and a knife rotatably mounted on the staple cartridge and coupled to the pusher such that the knife passes into the slot to cut the body tissue as the pusher rotates toward the anvil.
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Accused Products
Abstract
An instrument including a clamping jaw with an anvil defining an elongated slot and staple forming cups on opposing sides of the elongated slot. A housing rotatably mounts on the anvil and a pusher rotatably mounts within the housing. A handle actuates the clamping jaw from the open to the intermediate position by rotating the housing towards the clamping jaw. To move from the intermediate position to the closed position, the pusher rotates towards the anvil. A staple cartridge, disposed in the housing, includes a staple track for retaining two rows of staples on opposing sides of the elongated slot. Two staple drivers align with the distal most staples. The drivers slidably mount in the staple cartridge and couple to the pusher such that each staple driver forces a staple into the forming cups and, in turn, staples the body tissue as the pusher rotates from the intermediate to closed position. A knife rotatably mounts on the staple cartridge and couples to the pusher such that the knife passes into the elongated slot and, in turn, cuts the body tissue as the pusher rotates from the intermediate to closed position.
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Citations
27 Claims
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1. An instrument for stapling and cutting body tissue comprising:
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a) a clamping jaw including an anvil, a housing rotatably mounted on the anvil, and a pusher rotatably mounted within the housing, wherein the anvil defines a slot and at least one pair of staple forming cups adjacent the slot;
b) a handle having a trigger operatively connected to the clamping jaw for actuating the clamping jaw; and
c) a staple cartridge within the housing, the staple cartridge including at least one staple aligned with the pair of forming cups, a driver slidably mounted in the staple cartridge, aligned with the at least one staple, and coupled to the pusher such that the driver forces the staple into the forming cups to staple the body tissue as the pusher rotates toward the anvil, and a knife rotatably mounted on the staple cartridge and coupled to the pusher such that the knife passes into the slot to cut the body tissue as the pusher rotates toward the anvil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An instrument for substantially simultaneously stapling and cutting body tissue comprising:
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a) a fastening/cutting assembly including an anvil and a pusher rotatably mounted on the fastening and cutting assembly;
b) a handle operatively connected to the fastening/cutting assembly for rotating the pusher towards the anvil; and
c) a staple cartridge associated with the pusher including a plurality of staples, a first staple forming driver aligned with one of the staples, slidably mounted in the staple cartridge and coupled to the pusher, and a knife rotatably mounted on the staple cartridge and coupled to the pusher, wherein upon rotation of the pusher towards the anvil, the knife forms an incision in the body tissue and the first staple forming driver forms a staple in the body tissue adjacent the incision. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An instrument for stapling and cutting body tissue comprising:
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a) a clamping jaw including;
i) an anvil defining an elongated slot and staple forming cups on opposing sides of the elongated slot;
ii) a housing rotatably mounted on the anvil; and
iii) a pusher rotatably mounted within the housing;
b) a handle portion connected to the clamping jaw and including means for actuating the clamping jaw from an open position to an intermediate position by rotating the housing towards the clamping jaw to capture the body tissue therebetween, and for actuating the clamping jaw from the intermediate position to a closed position by rotating the pusher towards the anvil; and
c) a staple cartridge disposed in the housing and including;
i) a staple track for retaining two rows of staples, each row being laterally spaced from the elongated slot;
ii) two staple forming drivers, each staple forming driver aligned with the forming cups, the drivers being slidably mounted in the staple cartridge and coupled to the pusher such that each staple forming driver forces a single staple from each row into the forming cups and, in turn, staples the body tissue as the pusher rotates from the intermediate to the closed position; and
iii) a knife rotatably mounted on the staple cartridge and coupled to the pusher such that the knife passes into the elongated slot and, in turn, cuts the body tissue as the pusher rotates from the intermediate to the closed position. - View Dependent Claims (17, 18, 19, 20)
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21. A surgical instrument for stapling and cutting body tissue comprising:
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a) a handle assembly including an actuation handle mounted for pivotal movement relative to a stationary handle;
b) an elongated tubular body portion extending distally from the handle portion and defining a longitudinal axis;
c) a fastening assembly operatively associated with a distal end portion of the elongated tubular body portion and including;
i) an elongated anvil portion having laterally opposed staple forming surfaces at a distal end thereof;
ii) an elongated housing portion mounted for pivotal movement relative to the anvil portion between an open position and a closed position;
iii) a cartridge supported within the housing portion and carrying two laterally spaced apart longitudinally extending rows of staples, each row of staples having a staple pusher movably mounted at a distal end thereof for urging staples from the cartridge, the cartridge further carrying a cutting knife positioned between the laterally spaced apart rows of staples and mounted for pivotal movement about an axis extending at an angle to the staple rows; and
iv) a forked lever supported within the housing portion and mounted for pivotal movement relative to the cartridge, the lever having means for operatively engaging the staple pushers and means for operatively engaging the cutting knife; and
d) first and second actuation cables extending through the body portion between the handle assembly and the fastening assembly, wherein the first actuation cable is operatively connected to the housing portion of the fastening assembly and the second actuation cable is operatively connected to the forked lever of the fastening assembly, and wherein pivotal movement of the actuation handle relative to the stationary handle through a first distance causes the first actuation cable to move the housing portion from the open position spaced from the anvil portion to the closed position approximated with the anvil portion, and pivotal movement of the actuation handle through a second distance causes the second actuation cable to pivot the forked lever into the cartridge, whereby the staple pushers drive respective staples from the cartridge to be formed against the staple forming surfaces of the anvil portion, while the cutting blade pivots about its axis in a path running between the staples driven from the cartridge. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification