Combined bipolar scissor and grasper
First Claim
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1. A combination bipolar scissors and graspers surgical instrument comprising:
- a first jaw member having a first cutting edge, a first cutting surface, and a first grasping surface, the first cutting edge being distal to the first grasping surface, the first jaw member further having a first pivoting surface;
a second jaw member having a second cutting edge and second cutting surface opposing the first cutting edge and first cutting surface, the second jaw member further having a second grasping surface opposing the first grasping surface and a second pivoting surface opposing the first pivoting surface and in sliding contact therewith;
a pivot pin pivotally connected to the jaw members wherein at least one jaw member is pivotable in relation to the other jaw member about the pivoting surfaces, the jaw members being capable of pivoting between an open and closed position such that the cutting edges form a scissor and the grasping surfaces form a clamp when the jaw members are in their closed position;
means for supplying electrical energy to the first jaw member and electrical energy of the opposite polarity to the second jaw member for cauterizing tissue therebetween;
isolating means for electrically isolating the first jaw member from the second jaw member; and
actuation means for actuating the jaw members between their open and closed positions.
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Abstract
Open surgery and endoscopic versions of a combined bipolar electrosurgical cutting and grasping instrument where the grasping surfaces are contained within the shape of a standard surgical scissor. This unique arrangement results in a combined scissor and grasper which has the feel of a standard scissor but which allows surgeons to cauterize tissue and vessels while both cutting and grasping thus making the instruments well suited to perform coaptation of vessels. Also disclosed herein, are methods for using the various combined electrosurgical cutting and grasping instruments.
709 Citations
53 Claims
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1. A combination bipolar scissors and graspers surgical instrument comprising:
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a first jaw member having a first cutting edge, a first cutting surface, and a first grasping surface, the first cutting edge being distal to the first grasping surface, the first jaw member further having a first pivoting surface; a second jaw member having a second cutting edge and second cutting surface opposing the first cutting edge and first cutting surface, the second jaw member further having a second grasping surface opposing the first grasping surface and a second pivoting surface opposing the first pivoting surface and in sliding contact therewith; a pivot pin pivotally connected to the jaw members wherein at least one jaw member is pivotable in relation to the other jaw member about the pivoting surfaces, the jaw members being capable of pivoting between an open and closed position such that the cutting edges form a scissor and the grasping surfaces form a clamp when the jaw members are in their closed position; means for supplying electrical energy to the first jaw member and electrical energy of the opposite polarity to the second jaw member for cauterizing tissue therebetween; isolating means for electrically isolating the first jaw member from the second jaw member; and actuation means for actuating the jaw members between their open and closed positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 41)
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15. A combination bipolar scissors and graspers surgical instrument comprising:
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a first jaw member having a first cutting edge, a first cutting surface, and a first grasping surface, the first grasping surface being distal to the first cutting edge, the first jaw member further having a first pivoting surface; a second jaw member having a second cutting edge and second cutting surface opposing the first cutting edge and first cutting surface, the second jaw member further having a second grasping surface opposing the first grasping surface and a second pivoting surface opposing the first pivoting surface and in sliding contact therewith; a pivot pin pivotally connected to the jaw members wherein at least one jaw member is pivotable in relation to the other jaw member about the pivoting surfaces, the jaw members being capable of pivoting between an open and closed position such that the cutting edges form a scissor and the grasping surfaces form a clamp when the jaw members are in their closed position; means for supplying electrical energy to the first jaw member and electrical energy of the opposite polarity to the second jaw member for cauterizing tissue therebetween; isolating means for electrically isolating the first jaw member from the second jaw member; and actuation means for actuating the jaw members between their open and closed positions; wherein the isolating means comprises an electrically insulating coating disposed on the first cutting surface such that the first cutting surface is electrically isolated from the second cutting surface when the jaw members are in their closed position but which allows electrical conduction between the first and second cutting edges when tissue is present therebetween;
means for maintaining an insulating gap between the first grassing surface and second grasping surface for permitting electrical conduction between the grasping surfaces when tissue is inserted therebetween but which prevents electrical conduction between the grasping surfaces when tissue is not present therebetween;
an electrically insulating coating disposed on one of the first or second pivoting surfaces; and
means for preventing electrical conduction from the first jaw member to the second jaw member through the pivot pin. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A combination bipolar scissors and graspers surgical instrument comprising:
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an elongated tube having a distal end, a proximal end, and a lumen; a first jaw member pivotally disposed on the distal end of the elongated tube, the jaw member having a first cutting edge, a first cutting surface, and a first grasping surface, the first cutting edge being distal to the first grasping surface, the first jaw member further having a first pivoting surface; a second jaw member pivotally disposed on the distal end of the elongated tube, the jaw member having a second cutting edge and second cutting surface opposing the first cutting edge and first cutting surface, the second jaw member further having a second grasping surface opposing the first grasping surface and a second pivoting surface opposing the first pivoting surface and in sliding contact therewith; a pivot pin pivotally connected to the jaw members and fixed to the distal end of the elongated tube wherein at least one jaw member is pivotable in relation to the other jaw member about the pivoting surfaces, the jaw members being capable of pivoting between an open and closed position such that the cutting edges form a scissor and the grasping surfaces form a clamp when the jaw members are in their closed position; means for supplying electrical energy to the first jaw member and electrical energy of the opposite polarity to the second jaw member for cauterization of tissue therebetween; isolating means for electrically isolating the first jaw member from the second jaw member; and actuation means disposed on the proximal end of the elongated tube and coupled to the jaw members through the lumen of the elongated tube for actuating the jaws members between their open and closed positions. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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42. A combination bipolar scissors and graspers surgical instrument comprising:
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an elongated tube having a distal end, a proximal end, and a lumen; a first jaw member pivotally disposed on the distal end of the elongated tube, the jaw member having a first cutting edge, a first cutting surface, and a first grasping surface, the first grasping surface being distal to the first cutting edge, the first jaw member further having a first pivoting surface; a second jaw member pivotally disposed on the distal end of the elongated tube, the jaw member having a second cutting edge and second cutting surface opposing the first cutting edge and first cutting surface, the second jaw member further having a second grasping surface opposing the first grasping surface and a second pivoting surface opposing the first pivoting surface and in sliding contact therewith; a pivot pin pivotally connected to the jaw members and fixed to the distal end of the elongated tube wherein at least one jaw member is pivotable in relation to the other jaw member about the pivoting surfaces, the jaw members being capable of pivoting between an open and closed position such that the cutting edges form a scissor and the grasping surfaces form a clamp when the jaw members are in their closed position; means for supplying electrical energy to the first jaw member and electrical energy of the opposite polarity to the second jaw member for cauterization of tissue therebetween; isolating means for electrically isolating the first jaw member from the second jaw member; and actuation means disposed on the proximal end of the elongated tube and coupled to the jaw members through the lumen of the elongated tube for actuating the jaws members between their open and closed positions; wherein the isolating means comprises an electrically insulating coating disposed on the first cutting surface such that the first cutting surface is electrically isolated from the second cutting surface when the jaw members are in their closed position but which allows electrical conduction between the first and second cutting edges when tissue is present therebetween;
means for maintaining an insulating gap between the first grasping surface and second grasping surface for permitting electrical conduction between the grasping surfaces when tissue is inserted therebetween but which prevents electrical conduction between the grasping surfaces when tissue is not present therebetween;
an electrically insulating coating disposed on one of the first or second pivoting surfaces; and
means for preventing electrical conduction from the first jaw member to the second jaw member through the pivot pin. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification