Simultaneous I-beam and spring driven cam jaw closure mechanism
First Claim
1. A surgical instrument, comprising:
- an end effector comprising;
a movable jaw comprising a first jaw member and a second jaw member, the first jaw member comprising a first track configured to slidably receive a first pin, the first jaw member comprising a ramp at a proximal end of the first track, the second jaw member comprising a second track configured to slidably receive a second pin; and
a cutting element slidably movable within the end effector, wherein the first and second pins are fixed to the cutting element, wherein the cutting element and the first and second pins define an I-beam member; and
a handle assembly comprising;
an energy button configured to deliver energy to at least one electrode located in the end effector;
a trigger plate operably coupled to a spring, the spring configured to move the first jaw member a first predetermined distance relative to the second jaw member independently of the I-beam member based on the spring generating a predetermined force;
a firing plate operably coupled to the I-beam member, the firing plate configured to drive the I-beam member based on a firing bar independently of the spring, wherein the I-beam member is configured to move the first jaw member relative to the second jaw member a second predetermined distance based on moving the I-beam member along the ramp and the first and second tracks from an initial position at a base of the ramp; and
a trigger operatively coupled to the trigger plate and the firing plate; and
wherein;
the spring and the I-beam member are configured to simultaneously move the first jaw member relative to the second jaw member, andthe predetermined force is less than a predetermined threshold.
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0 Petitions
Accused Products
Abstract
A surgical instrument includes an end effector and a handle assembly. The end effector includes a movable jaw and a cutting element slidably movable within the end effector. The handle assembly includes an energy button configured to deliver energy to at least one electrode located in the end effector, a trigger plate operably coupled to a jaw closure mechanism, the trigger plate configured to close the movable jaw, a firing plate operably coupled to a cutting element drive mechanism. The firing plate is configured to drive the cutting element independently of the jaw closure mechanism. The cutting element drive mechanism is configured to close the movable jaw when the cutting element is driven. The handle assembly further includes a trigger operatively coupled to the trigger plate and the firing plate. The jaw closure mechanism and the cutting element drive mechanism are configured to simultaneously close the movable jaw.
1507 Citations
20 Claims
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1. A surgical instrument, comprising:
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an end effector comprising; a movable jaw comprising a first jaw member and a second jaw member, the first jaw member comprising a first track configured to slidably receive a first pin, the first jaw member comprising a ramp at a proximal end of the first track, the second jaw member comprising a second track configured to slidably receive a second pin; and a cutting element slidably movable within the end effector, wherein the first and second pins are fixed to the cutting element, wherein the cutting element and the first and second pins define an I-beam member; and a handle assembly comprising; an energy button configured to deliver energy to at least one electrode located in the end effector; a trigger plate operably coupled to a spring, the spring configured to move the first jaw member a first predetermined distance relative to the second jaw member independently of the I-beam member based on the spring generating a predetermined force; a firing plate operably coupled to the I-beam member, the firing plate configured to drive the I-beam member based on a firing bar independently of the spring, wherein the I-beam member is configured to move the first jaw member relative to the second jaw member a second predetermined distance based on moving the I-beam member along the ramp and the first and second tracks from an initial position at a base of the ramp; and a trigger operatively coupled to the trigger plate and the firing plate; and wherein; the spring and the I-beam member are configured to simultaneously move the first jaw member relative to the second jaw member, and the predetermined force is less than a predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 19, 20)
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8. A surgical instrument, comprising:
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an end effector comprising; a movable jaw comprising a first jaw member and a second jaw member, the first jaw member comprising a first track configured to slidably receive a first pin, the first jaw member comprising a ramp at a proximal end of the first track, the second jaw member comprising a second track configured to slidably receive a second pin; and a cutting element slidably movable within the end effector, wherein the first and second pins are fixed to the cutting element, wherein the cutting element and the first and second pins define an I-beam member; and a spring configured to move the first jaw member a first predetermined distance relative to the second jaw member independently of the I-beam member; and wherein; the I-beam member is configured to independently move the first jaw member a second predetermined distance relative to the second jaw member based on moving the I-beam member along the ramp and the first and second tracks from an initial position at a base of the ramp, the spring and the I-beam member are configured to simultaneously move the first jaw member relative to the second jaw member, the first predetermined distance is less than a predetermined threshold distance. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A surgical instrument, comprising:
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a handle assembly comprising; a trigger operatively coupled to a trigger plate and a firing plate; an energy button configured to deliver energy to at least one electrode; a lockout element operatively coupled to the energy button, the lockout element configured to prevent operation of the firing plate; and a lockout disabling mechanism configured to disable the lockout element, the lockout disabling mechanism operable between a first position and a second position, wherein when the lockout disabling mechanism is located in the first position, the lockout element is enabled and can be unlocked by the energy button, and wherein when the lockout disabling mechanism is in the second position, the lockout element is disabled; a shaft assembly comprising a proximal end and a distal end, wherein the shaft assembly is coupled to the handle assembly at the proximal end; and an end effector coupled to the distal end of the shaft assembly, the end effector comprising; a jaw assembly, comprising; a first jaw member, the first jaw member comprising a first track configured to slidably receive a first pin, the first jaw member comprising a ramp at a proximal end of the first track; and a second jaw member, the second jaw member comprising a second track configured to slidably receive a second pin, wherein rotation of the trigger plate transitions the jaw assembly between an open configuration and an approximated configuration by moving at least one of the first jaw member and the second jaw member relative to the other one of the first jaw member and the second jaw member; a cutting element deployable in response to rotation of the firing plate wherein the first and second pins are fixed to the cutting element, wherein the cutting element and the first and second pins define an I-beam member; a spring configured to move the first jaw member a first predetermined distance relative to the second jaw member independently of the I-beam member; and wherein; the I-beam member is configured to independently move the first jaw member a second predetermined distance relative to the second jaw member based on moving the I-beam member along the ramp and the first and second tracks from an initial position at a base of the ramp, the spring and the I-beam member are configured to simultaneously move the first jaw member relative to the second jaw member; and the first predetermined distance is less than a predetermined threshold distance. - View Dependent Claims (15, 16, 17, 18)
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Specification