Blade deployment mechanisms for surgical forceps
First Claim
1. A forceps, comprising:
- a first shaft member having a jaw member at a distal end thereof;
a second shaft member having a jaw member at a distal end thereof,the first and second shaft members pivotally coupled to each other about a pivot to move the jaw members between an open position and a closed position;
a trigger disposed on one of the first or second shaft members;
a blade operatively coupled to the trigger such that actuation of the trigger translates the blade;
an interference member engaged with the trigger when the jaw members are in the open position to prevent actuation of the trigger, one of the first or second shaft members configured to contact the interference member to move the interference member out of engagement with the trigger when the jaw members are moved to the closed position to permit actuation of the trigger;
an actuator disposed within a recess formed in the first shaft member such that the actuator is recessed from an outer surface of the first shaft member, the actuator configured to supply electrosurgical energy to at least one of the jaw members; and
a tab extending from the second shaft member and configured to be received within the recess upon approximation of the first and second shaft members to depress the actuator.
3 Assignments
0 Petitions
Accused Products
Abstract
A forceps includes first and second shafts, each having a jaw member disposed at a distal end thereof. At least one jaw member is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw member is configured for reciprocation of a blade therethrough. A trigger assembly includes a trigger and at least one linkage coupled to the trigger and to the blade such that rotation of the trigger translates the blade between the retracted and the extended position. An interference member moveable between a locked position and an unlocked position is also provided. The interference member is configured to engage the linkage(s) when in the locked position to inhibit translation of the blade from the retracted to the extended position.
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Citations
19 Claims
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1. A forceps, comprising:
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a first shaft member having a jaw member at a distal end thereof; a second shaft member having a jaw member at a distal end thereof, the first and second shaft members pivotally coupled to each other about a pivot to move the jaw members between an open position and a closed position; a trigger disposed on one of the first or second shaft members; a blade operatively coupled to the trigger such that actuation of the trigger translates the blade; an interference member engaged with the trigger when the jaw members are in the open position to prevent actuation of the trigger, one of the first or second shaft members configured to contact the interference member to move the interference member out of engagement with the trigger when the jaw members are moved to the closed position to permit actuation of the trigger; an actuator disposed within a recess formed in the first shaft member such that the actuator is recessed from an outer surface of the first shaft member, the actuator configured to supply electrosurgical energy to at least one of the jaw members; and a tab extending from the second shaft member and configured to be received within the recess upon approximation of the first and second shaft members to depress the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A forceps, comprising:
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a first shaft member having a jaw member at a distal end thereof; a second shaft member having a jaw member at a distal end thereof, the first and second shaft members pivotally coupled to each other about a pivot to move the jaw members between an open position and a closed position; a trigger disposed on one of the first or second shaft members; a blade operatively coupled to the trigger such that actuation of the trigger translates the blade; an interference member engaged with the trigger when the jaw members are in the open position to prevent actuation of the trigger, one of the first or second shaft members configured to contact the interference member to move the interference member out of engagement with the trigger when the jaw members are moved to the closed position to permit actuation of the trigger; an actuator disposed within a recess formed in the first shaft member, the actuator configured to supply electrosurgical energy to at least one of the jaw members; and a tab extending from the second shaft member toward the first shaft member and configured to be received within the recess upon approximation of the first and second shaft members to depress the actuator. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification