CA2442960A1 - Vessel sealing instrument - Google Patents
Vessel sealing instrument Download PDFInfo
- Publication number
- CA2442960A1 CA2442960A1 CA002442960A CA2442960A CA2442960A1 CA 2442960 A1 CA2442960 A1 CA 2442960A1 CA 002442960 A CA002442960 A CA 002442960A CA 2442960 A CA2442960 A CA 2442960A CA 2442960 A1 CA2442960 A1 CA 2442960A1
- Authority
- CA
- Canada
- Prior art keywords
- jaw members
- electrosurgical instrument
- open surgery
- bipolar electrosurgical
- electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2945—Curved jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/126—Generators therefor characterised by the output polarity bipolar
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1412—Blade
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
- A61B2018/1432—Needle curved
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
- A61B2018/1455—Probes having pivoting end effectors, e.g. forceps including means for cutting having a moving blade for cutting tissue grasped by the jaws
Abstract
A bipolar electrosurgical instrument for clamping, grasping, manupulating, and sealing tissue includes first and second shafts each having 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.
Claims (19)
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 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;
a source of electrical energy having first and second electrical potentials, the first electrical potential being connected to one of the jaw members and a second electrical potential being 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; and wherein the first and second electrical potentials are transmitted to the jaw members through the first shaft.
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 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;
a source of electrical energy having first and second electrical potentials, the first electrical potential being connected to one of the jaw members and a second electrical potential being 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; and wherein the first and second electrical potentials are transmitted to the jaw members through the first shaft.
2. A bipolar electrosurgical instrument for use in open surgery according to claim 1 wherein the first electrical potential is transmitted through the first shaft by a lead having a terminal end which electrically interfaces with a distal connector which connects one of the jaw members to the first electrical potential.
3. A bipolar electrosurgical instrument for use in open surgery according to claim 2 wherein the second electrical potential is transmitted through the first shaft by a tube disposed within the first shaft which connects the other jaw member to the second electrical potential.
4. A bipolar electrosurgical instrument for use in open surgery according to claim 2 wherein the distal connector includes a spring washer which acts as an electrical intermediary between the terminal end and the jaw member.
5. A bipolar electrosurgical instrument for use in open surgery according to claim 4 wherein the spring washer is dimensioned to enhance the electrical interface between the terminal end and the jaw member.
6. A bipolar electrosurgical instrument for use in open surgery according to claim 5 wherein the spring washer is dimensioned to rotate relative the terminal end during movement of the jaw members from the first to second positions to provide a self-cleaning, enhanced electrical contact between the terminal end and the jaw member.
7. A bipolar electrosurgical instrument for use in open surgery according to claim 2 wherein the distal connector is made from an insulative substrate and is interposed between the jaw members for electrically isolating the first and second potentials.
8. A bipolar electrosurgical instrument for use in open surgery according to claim 7 wherein the distal connector includes a first surface having at least one recess defined therein which is dimensioned to receive at least a portion of the terminal end.
9. A bipolar electrosurgical instrument for use in open surgery according to claim 7 wherein at least one of the jaw members includes a skirt which is dimensioned to prevent exposure of the terminal end when the jaw members are disposed in the first position, the second position and during operative movement therebetween.
10. A bipolar electrosurgical instrument for use in open surgery according to claim 2 wherein the terminal end includes a flat-formed wire.
11. A bipolar electrosurgical instrument for use in open surgery according to claim 10 wherein the jaw members are connected by a pivot and the flat-formed wire is dimensioned to substantially encircle a boss extending from the distal connector which receives the pivot.
12. A bipolar electrosurgical instrument for use in open surgery according to claim 2 wherein the jaw members are connected by a pivot and the distal connector includes a boss extending therefrom which is designed to electrically insulate the terminal end from the pivot.
13. A bipolar electrosurgical instrument for use in open surgery according to claim 3 wherein the lead is fed to the distal connector through the tube and the lead includes an insulative coating . which surrounds a wire-like electrical conductor to insulate the wire-like electrical conductor from the tube during activation.
14. 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 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 including an electrically conductive sealing surface;
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;
the first and second electrical potentials being transmitted to the jaw members through the first shaft wherein the first electrical potential is transmitted by a lead having a terminal end which electrically interfaces with a spring washer, the spring washer acting as an electrical intermediary between the terminal end and the jaw member; and at least one non-conductive stop member disposed on the electrically conductive sealing surface of at least one of the jaw members which controls the distance between the jaw members when tissue is held therebetween.
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 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 including an electrically conductive sealing surface;
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;
the first and second electrical potentials being transmitted to the jaw members through the first shaft wherein the first electrical potential is transmitted by a lead having a terminal end which electrically interfaces with a spring washer, the spring washer acting as an electrical intermediary between the terminal end and the jaw member; and at least one non-conductive stop member disposed on the electrically conductive sealing surface of at least one of the jaw members which controls the distance between the jaw members when tissue is held therebetween.
15. A bipolar electrosurgical instrument for use in open surgery according to claim 14 wherein the second electrical potential is transmitted through the first shaft by a tube disposed within the first shaft which connects the other jaw member to the second electrical potential.
16. A bipolar electrosurgical instrument for use in open surgery according to claim 14 further comprising an insulator disposed between the jaw members for electrically isolating the first and second potentials.
17. A bipolar electrosurgical instrument for use in open surgery according to claim 14 wherein the terminal end includes a flat-formed wire.
18. A bipolar electrosurgical instrument for use in open surgery according to claim 14 wherein the spring washer is dimensioned to rotate relative the terminal end during movement of the jaw members from the first to second positions to provide a self-cleaning, enhanced electrical contact between the terminal end and the jaw member.
19. 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 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 including an electrically conductive sealing surface;
at least one stop member disposed on one of the electrically conductive surfaces of at least one jaw member; and a source of electrical energy having a first electrical potential connected the electrically conductive sealing surface of one of the jaw members and a second electrical potential connected to the electrically conductive sealing surface of the other of the jaw members such that the jaw members are capable of selectively conducting energy through tissue held between electrically conductive sealing surfaces to effect a seal;
wherein the first and second electrical potentials are transmitted to the jaw members through the first shaft.
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 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 including an electrically conductive sealing surface;
at least one stop member disposed on one of the electrically conductive surfaces of at least one jaw member; and a source of electrical energy having a first electrical potential connected the electrically conductive sealing surface of one of the jaw members and a second electrical potential connected to the electrically conductive sealing surface of the other of the jaw members such that the jaw members are capable of selectively conducting energy through tissue held between electrically conductive sealing surfaces to effect a seal;
wherein the first and second electrical potentials are transmitted to the jaw members through the first shaft.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2001/011420 WO2002080797A1 (en) | 1998-10-23 | 2001-04-06 | Vessel sealing instrument |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2442960A1 true CA2442960A1 (en) | 2002-10-17 |
CA2442960C CA2442960C (en) | 2011-03-22 |
Family
ID=29731290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2442960A Expired - Fee Related CA2442960C (en) | 2001-04-06 | 2001-04-06 | Vessel sealing instrument |
Country Status (8)
Country | Link |
---|---|
US (2) | US20030014053A1 (en) |
EP (1) | EP1377227B1 (en) |
JP (1) | JP4699679B2 (en) |
AU (2) | AU2001249937B2 (en) |
CA (1) | CA2442960C (en) |
DE (1) | DE60115295T2 (en) |
ES (1) | ES2250379T3 (en) |
WO (1) | WO2002080797A1 (en) |
Families Citing this family (342)
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-
2001
- 2001-04-06 CA CA2442960A patent/CA2442960C/en not_active Expired - Fee Related
- 2001-04-06 ES ES01923224T patent/ES2250379T3/en not_active Expired - Lifetime
- 2001-04-06 DE DE60115295T patent/DE60115295T2/en not_active Expired - Lifetime
- 2001-04-06 JP JP2002578836A patent/JP4699679B2/en not_active Expired - Fee Related
- 2001-04-06 AU AU2001249937A patent/AU2001249937B2/en not_active Ceased
- 2001-04-06 EP EP01923224A patent/EP1377227B1/en not_active Expired - Lifetime
- 2001-04-06 WO PCT/US2001/011420 patent/WO2002080797A1/en active IP Right Grant
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2002
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2004
- 2004-11-24 US US10/996,971 patent/US7510556B2/en not_active Expired - Fee Related
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2006
- 2006-05-05 AU AU2006201899A patent/AU2006201899B2/en not_active Ceased
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DE60115295T2 (en) | 2006-08-10 |
JP2004524923A (en) | 2004-08-19 |
WO2002080797A1 (en) | 2002-10-17 |
AU2001249937B2 (en) | 2006-02-09 |
US7510556B2 (en) | 2009-03-31 |
AU2006201899A1 (en) | 2006-05-25 |
EP1377227A1 (en) | 2004-01-07 |
US20050137592A1 (en) | 2005-06-23 |
EP1377227B1 (en) | 2005-11-23 |
US20030014053A1 (en) | 2003-01-16 |
AU2006201899B2 (en) | 2009-05-14 |
DE60115295D1 (en) | 2005-12-29 |
ES2250379T3 (en) | 2006-04-16 |
CA2442960C (en) | 2011-03-22 |
JP4699679B2 (en) | 2011-06-15 |
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