Apparatus for applying surgical fasteners
First Claim
Patent Images
1. An apparatus for applying surgical fasteners to body tissue comprising:
- a) a handle portion;
b) a body portion extending distally from the handle portion;
c) a cartridge housing supported in a distal end portion of the body portion and defining a tissue contacting surface the cartridge housing containing a plurality of surgical fasteners;
d) an anvil member defining a fastener forming surface against which fasteners ejected from the cartridge housing are driven, the anvil member movably mounted for movement with respect to the cartridge housing at a location spaced from the handle portion, the anvil member movable between a first position and a second position wherein the fastener forming surface and the tissue contacting surface are in closer cooperative alignment;
e) an actuation mechanism configured to translate through the anvil member and cartridge housing to progressively move the anvil member from the first position to the second position and concomitantly eject a plurality of surgical fasteners from the cartridge to be formed against the anvil; and
f) a drive mechanism operable from the handle portion and extending through the body portion to drive the actuation mechanism through the anvil member.
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Accused Products
Abstract
An apparatus is provided for applying surgical fasteners to body tissue. The apparatus has a handle assembly and an elongated body which extends distally from the handle assembly. A fastener applying assembly is operatively associated with a distal end of the elongated body and includes a cartridge housing a plurality of staples and an anvil movable between an open position and a closed position. An actuation assembly is configured to translate through the fastener applying assembly to effect progressive closure of the anvil and concomitantly effect sequential ejection of staples from the cartridge.
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Citations
28 Claims
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1. An apparatus for applying surgical fasteners to body tissue comprising:
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a) a handle portion; b) a body portion extending distally from the handle portion; c) a cartridge housing supported in a distal end portion of the body portion and defining a tissue contacting surface the cartridge housing containing a plurality of surgical fasteners; d) an anvil member defining a fastener forming surface against which fasteners ejected from the cartridge housing are driven, the anvil member movably mounted for movement with respect to the cartridge housing at a location spaced from the handle portion, the anvil member movable between a first position and a second position wherein the fastener forming surface and the tissue contacting surface are in closer cooperative alignment; e) an actuation mechanism configured to translate through the anvil member and cartridge housing to progressively move the anvil member from the first position to the second position and concomitantly eject a plurality of surgical fasteners from the cartridge to be formed against the anvil; and f) a drive mechanism operable from the handle portion and extending through the body portion to drive the actuation mechanism through the anvil member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for applying surgical fasteners to body tissue comprising:
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a) a handle assembly; b) an elongated body portion extending distally from the handle portion and defining a longitudinal axis; c) a fastener applying assembly supported in a distal end portion of the body portion and including; 1) a cartridge housing containing a plurality of surgical fasteners and defining a tissue contacting surface; and 2) an anvil member defining a fastener forming surface against which fasteners ejected from the cartridge housing are driven, the anvil member mounted at a location distal of the handle assembly for movement between a first position and a second position wherein the fastener forming surface and the tissue contacting surface are in closer cooperative alignment; d) an actuator configured to translate through the fastener applying assembly in a generally distal direction to progressively move the anvil member from the first position to the second position and concomitantly eject a plurality of surgical fasteners from the cartridge housing to be formed against the fastener forming surface of the anvil member, and e) a pneumatic drive system operatively associated with the handle assembly and operable to drive the actuator through the fastener applying assembly. - View Dependent Claims (21, 22, 23, 24)
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25. An apparatus for applying surgical fasteners to body tissue comprising:
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a) a handle portion; b) a body portion extending from the handle portion and defining a longitudinal axis; c) a cartridge housing containing a plurality of surgical fasteners mounted in a distal portion of the body portion; d) an anvil member against which fasteners ejected from the cartridge housing are driven, the anvil member having a fastener forming surface and an opposing external camming surface defined thereon, the anvil member and the cartridge housing mounted for relative movement between an open position and a closed position; e) an actuator configured to translate through the anvil member while contacting the external camming surface of the anvil member to progressively approximate the anvil member and the cartridge housing and concomitantly eject a plurality of surgical fasteners from the cartridge housing to be formed against the anvil; and f) a drive mechanism operable from the handle portion and extending through the body portion to drive the actuator through the anvil member. - View Dependent Claims (26, 27, 28)
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Specification