Electrosurgical cutting and sealing instrument
First Claim
Patent Images
1. An electrosurgical instrument, comprising:
- a handle;
an elongate shaft extending distally from the handle;
a trigger movable between an initial unfired position and a final fired position during a trigger stroke;
an end effector coupled to a distal end of the elongate shaft, comprising;
a first jaw member;
a second jaw member, wherein the first jaw member is movable relative to the second jaw member between an open and a closed position;
a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and
an electrode;
an axially movable cutting member configured to move the first jaw member to the closed position, the tissue-cutting element positioned at a distal end of the axially movable cutting member;
an electromagnet positioned proximate to the trigger; and
an electromagnet engaging surface positioned proximate to the trigger, wherein the electromagnet is configured to pause the trigger between the initial unfired position and the final fired position.
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Accused Products
Abstract
A surgical instrument for supplying energy to tissue can comprise a jaw member comprising an electrode, wherein the electrode is configured to supply energy from a power source to captured tissue. The surgical instrument comprises a tissue-cutting element to transect the captured tissue. The rate of distal translation of the tissue-cutting element during the operational stroke may be regulated by at least one electromagnet and at least one electromagnetic engagement surface.
457 Citations
22 Claims
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1. An electrosurgical instrument, comprising:
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a handle; an elongate shaft extending distally from the handle; a trigger movable between an initial unfired position and a final fired position during a trigger stroke; an end effector coupled to a distal end of the elongate shaft, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member between an open and a closed position; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; an axially movable cutting member configured to move the first jaw member to the closed position, the tissue-cutting element positioned at a distal end of the axially movable cutting member; an electromagnet positioned proximate to the trigger; and an electromagnet engaging surface positioned proximate to the trigger, wherein the electromagnet is configured to pause the trigger between the initial unfired position and the final fired position. - View Dependent Claims (2, 3, 4, 5)
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6. An electrosurgical instrument, comprising:
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a handle; an elongate shaft extending distally from the handle; a trigger; an end effector coupled to a distal end of the elongate shaft, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member between an open and a closed position; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; an axially movable cutting member configured to move the first jaw member to the closed position, the tissue-cutting element positioned at a distal end of the axially movable cutting member; an electromagnet positioned proximate to the trigger; and an electromagnet engaging surface positioned proximate to the trigger, wherein the electromagnet is coupled to the trigger and the electromagnet engaging surface is coupled to the handle, and wherein the electromagnet comprises a first electromagnet and a second electromagnet. - View Dependent Claims (7)
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8. An electrosurgical instrument, comprising:
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a handle; an elongate shaft extending distally from the handle; a trigger; an end effector coupled to a distal end of the elongate shaft, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member between an open and a closed position; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; an axially movable cutting member configured to move the first jaw member to the closed position, the tissue-cutting element positioned at a distal end of the axially movable cutting member; an electromagnet positioned proximate to the trigger; and an electromagnet engaging surface positioned proximate to the trigger, wherein the electromagnet comprises a plurality of discrete electromagnets, wherein each of the plurality of discrete electromagnets is selectably energizable.
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9. An electrosurgical instrument, comprising:
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a handle; an elongate shaft extending distally from the handle; a trigger movable between a plurality of positions; an end effector coupled to a distal end of the elongate shaft, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member between an open and a closed position; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; an axially movable cutting member configured to move the first jaw member to the closed position, the tissue-cutting element positioned at a distal end of the axially movable cutting member; and a plurality of electromagnetic gates. - View Dependent Claims (10, 11, 12, 13, 14)
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15. An electrosurgical instrument, comprising:
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a handle; an elongate shaft extending distally from the handle; a trigger movable between a plurality of positions during a trigger stroke; a first electromagnetic gate and a second electromagnetic gate, wherein the first electromagnetic gate and the second electromagnetic gate are each positioned to sequentially pass proximate to an electromagnet engaging surface during the trigger stroke; an end effector coupled to a distal end of the elongate shaft, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member between an open and a closed position; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; and an axially movable cutting member configured to move the first jaw member to the closed position during the trigger stroke, the tissue-cutting element positioned at a distal end of the axially movable cutting member. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An electrosurgical instrument, comprising:
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a handle; a trigger movable between an initial unfired position and a final fired position during a trigger stroke; an end effector operably coupled the handle, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; an axially movable cutting member, the tissue-cutting element positioned at a distal end of the axially movable cutting member; an electromagnet positioned proximate to the trigger; and an electromagnet engaging surface positioned proximate to the trigger, wherein the electromagnet is configured to pause the trigger between the initial unfired position and the final fired position.
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22. An electrosurgical instrument, comprising:
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a handle; a trigger movable between a plurality of positions; an end effector operably coupled to the handle, comprising; a first jaw member; a second jaw member, wherein the first jaw member is movable relative to the second jaw member; a tissue-cutting element configured to translate with respect to the first jaw member and the second jaw member; and an electrode; an axially movable cutting member, the tissue-cutting element positioned at a distal end of the axially movable member; and a plurality of electromagnetic gates.
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Specification