Electrosurgical jaws with offset knife
First Claim
1. A forceps, comprising:
- a housing having a shaft attached thereto, the shaft having a longitudinal axis defined therethrough and an end effector assembly disposed at a distal end thereof, wherein the end effector assembly includes;
first and second jaw members disposed in opposing relation relative to one another and moveable from a first position to a second position for grasping tissue therebetween, each of the jaw members including a proximal flange adapted to communicate with a drive assembly for moving the jaw members between the first and second positions and at least one of the jaw members including a knife channel defined therein, a proximal end of the knife channel offset from the longitudinal axis defined through the shaft, at least one of the jaw members adapted to connect to an electrosurgical energy source to communicate energy to tissue disposed between the jaw members; and
a knife guide assembled adjacent an outer surface of one of the proximal flanges of the jaw members on the same side as the proximal end of the knife channel, the knife guide defining a knife path therein that is configured to guide a knife into the knife channel for translation therethrough, wherein the knife guide includes a channel defined therein for guiding an electrical lead to the at least one of the jaw members for supplying electrosurgical energy thereto.
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Accused Products
Abstract
An endoscopic forceps includes a housing having a shaft attached thereto with a longitudinal axis defined therethrough and an end effector assembly disposed at a distal end thereof. The end effector assembly includes first and second jaw members disposed in opposing relation relative to one another and moveable from a first, open position to a second, closed position for grasping tissue therebetween. Each of the jaw members includes a proximal flange adapted to communicate with a drive assembly for moving the jaw members between the first and second positions. One or both of the of the jaw members has a curved knife channel defined therein having a proximal end that is offset from the longitudinal axis defined through the shaft. A knife guide is assembled to an outer surface of one of the proximal flanges of the jaw members on the same side as the proximal end of the knife channel and defines a knife path therein configured to guide a knife into the knife channel for translation therethrough.
386 Citations
18 Claims
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1. A forceps, comprising:
a housing having a shaft attached thereto, the shaft having a longitudinal axis defined therethrough and an end effector assembly disposed at a distal end thereof, wherein the end effector assembly includes; first and second jaw members disposed in opposing relation relative to one another and moveable from a first position to a second position for grasping tissue therebetween, each of the jaw members including a proximal flange adapted to communicate with a drive assembly for moving the jaw members between the first and second positions and at least one of the jaw members including a knife channel defined therein, a proximal end of the knife channel offset from the longitudinal axis defined through the shaft, at least one of the jaw members adapted to connect to an electrosurgical energy source to communicate energy to tissue disposed between the jaw members; and a knife guide assembled adjacent an outer surface of one of the proximal flanges of the jaw members on the same side as the proximal end of the knife channel, the knife guide defining a knife path therein that is configured to guide a knife into the knife channel for translation therethrough, wherein the knife guide includes a channel defined therein for guiding an electrical lead to the at least one of the jaw members for supplying electrosurgical energy thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A forceps, comprising:
a housing having a shaft attached thereto, the shaft having a longitudinal axis defined therethrough and an end effector assembly disposed at a distal end thereof, wherein the end effector assembly includes; first and second jaw members disposed in opposing relation relative to one another and moveable from a first configuration to a second configuration for grasping tissue therebetween, each of the jaw members including a proximal flange adapted to communicate with a drive assembly for moving the jaw members between the first and second configuration and at least one of the jaw members including a knife channel defined therein, a proximal end of the knife channel offset from the longitudinal axis defined through the shaft; and a knife guide assembled adjacent an outer surface of one of the proximal flanges of the jaw members on the same side as the proximal end of the knife channel, the knife guide defining a knife path therein that is configured to guide a knife into the knife channel for translation therethrough, the knife guide including a blade stop at a distal end thereof, the blade stop positionable from a first position that interferes with the knife path to prevent distal translation of the knife when the jaw members are disposed in the first configuration to a second position that allows distal translation of the knife when the jaw members are disposed in the second configuration. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification