Vessel sealing instrument
First Claim
1. A bipolar electrosurgical instrument for use in open surgery, comprising:
- first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween, the pivot configured to selectively receive a knife, each of the jaw members including a channel extending from a proximal end of the jaw member to the distal end of the jaw member;
each jaw member being adapted to connect to a source of electrosurgical energy having first and second electrical potentials, a conductive lead connected to one of the jaw members providing the first electrical potential, and a conductive tube connected to other jaw member providing the second electrical potential such that the jaw members are capable of selectively conducting energy through tissue held therebetween to effect a seal; and
a distal connector disposed between the jaw members for electrically isolating the first and second electrical potentials, the distal connector including a donut-like mechanical interface that mechanically engages a distal end of the conductive lead.
4 Assignments
0 Petitions
Accused Products
Abstract
A bipolar electrosurgical instrument for clamping, grasping, manipulating, and sealing tissue includes first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof. The handle being operable to effect movement of the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The bipolar instrument is connectable to a source of electrical energy having a first electrical potential connected to one of the jaw members and a second electrical potential connected to the other of the jaw members such that the jaw members are capable of selectively conducting energy through tissue held therebetween to effect a seal. Both the first and second electrical potentials are transmitted to the jaw members through the first shaft.
797 Citations
23 Claims
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1. A bipolar electrosurgical instrument for use in open surgery, comprising:
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first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween, the pivot configured to selectively receive a knife, each of the jaw members including a channel extending from a proximal end of the jaw member to the distal end of the jaw member; each jaw member being adapted to connect to a source of electrosurgical energy having first and second electrical potentials, a conductive lead connected to one of the jaw members providing the first electrical potential, and a conductive tube connected to other jaw member providing the second electrical potential such that the jaw members are capable of selectively conducting energy through tissue held therebetween to effect a seal; and a distal connector disposed between the jaw members for electrically isolating the first and second electrical potentials, the distal connector including a donut-like mechanical interface that mechanically engages a distal end of the conductive lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A bipolar electrosurgical instrument for use in open surgery, comprising:
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first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween, the pivot configured to selectively receive a knife; each jaw member being adapted to connect to a source of electrosurgical energy having first and second electrical potentials, a conductive lead connected to one of the jaw members providing the first electrical potential, and a conductive tube connected to other jaw member providing the second electrical potential such that the jaw members are capable of selectively conducting energy through tissue held therebetween to effect a seal; and a distal connector disposed between the jaw members for electrically isolating the first and second electrical potentials, the distal connector including a donut-like mechanical interface that mechanically engages a distal end of the conductive lead. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A bipolar electrosurgical instrument for use in open surgery, comprising:
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first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween; each of the jaw members being adapted to connect to a source of electrical energy having first and second electrical potentials, each of the jaw members including electrically conductive sealing surfaces having a non-stick coating disposed thereon, a conductive lead connected to one of the jaw members providing the first electrical potential, and a conductive tube connected to other jaw member providing the second electrical potential such that the jaw members are capable of selectively conducting energy through tissue held therebetween to effect a seal; and a distal connector disposed between the jaw members for electrically isolating the first and second electrical potentials, the distal connector including a donut-like mechanical interface that mechanically engages a distal end of the conductive lead. - View Dependent Claims (23)
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Specification