CA2404385A1 - Electrosurgical instrument for coagulation and cutting - Google Patents
Electrosurgical instrument for coagulation and cutting Download PDFInfo
- Publication number
- CA2404385A1 CA2404385A1 CA002404385A CA2404385A CA2404385A1 CA 2404385 A1 CA2404385 A1 CA 2404385A1 CA 002404385 A CA002404385 A CA 002404385A CA 2404385 A CA2404385 A CA 2404385A CA 2404385 A1 CA2404385 A1 CA 2404385A1
- Authority
- CA
- Canada
- Prior art keywords
- face
- electrode
- tissue contacting
- tissue
- jaws
- 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
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
-
- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
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- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/0063—Sealing
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- 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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00875—Resistance or impedance
-
- 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
- A61B2018/142—Electrodes having a specific shape at least partly surrounding the target, e.g. concave, curved or in the form of a cave
-
- 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
-
- 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
- A61B2018/1457—Probes having pivoting end effectors, e.g. forceps including means for cutting having opposing blades cutting tissue grasped by the jaws, i.e. combined scissors and pliers
-
- 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
- A61B2018/146—Scissors
Abstract
A bipolar electrosurgical instrument having a pair of relatively moveable jaws, each of which includes a tissue contacting surface. The tissue contacting surfaces of the jaws are in face-to-face relation with one another, and adjacent each of the tissue contacting surfaces are first and second spaced-apart electrodes that are adapted for connection to the opposite terminals of a bipolar RF generator so as to generator a current flow therebetween. The first and second electrodes of one jaw are in offset opposed relation, respectively, with the first and second electrodes of the other jaw.
The tissue contacting surfaces are disposed between the electrodes on each jaw, and the first opposed electrodes of each jaw are connectable to one terminal of the bipolar RF generator, while the second opposed electrodes of each jaw are connectable to the other terminal of the bipolar RF generator. A
cutting portion is provided between the jaws. The cutting portion is moveable to provide the instrument with a scissors-like capability or a grasper-like capability, depending on the position of the cutting portion.
The tissue contacting surfaces are disposed between the electrodes on each jaw, and the first opposed electrodes of each jaw are connectable to one terminal of the bipolar RF generator, while the second opposed electrodes of each jaw are connectable to the other terminal of the bipolar RF generator. A
cutting portion is provided between the jaws. The cutting portion is moveable to provide the instrument with a scissors-like capability or a grasper-like capability, depending on the position of the cutting portion.
Claims (6)
1. An electrosurgical apparatus comprising:
first and second elongated grasping jaws, each jaw including a tissue contacting surface in face-to-face relation with the tissue contacting surface of the other jaw;
said grasping jaws being relatively movable for grasping tissue between said tissue contacting surfaces;
said tissue contacting surfaces of said jaws comprising an insulating material; and at least two electrode surfaces carried adjacent said tissue contacting surfaces of each said jaw and disposed to engage said tissue when grasped, said two electrode surfaces on said first jaw being in offset relation with said two electrode surfaces on said second jaw, and said facing electrode surfaces being of like polarity, said electrode surfaces being connectable to a power source for providing an electrical current between said electrode surfaces.
first and second elongated grasping jaws, each jaw including a tissue contacting surface in face-to-face relation with the tissue contacting surface of the other jaw;
said grasping jaws being relatively movable for grasping tissue between said tissue contacting surfaces;
said tissue contacting surfaces of said jaws comprising an insulating material; and at least two electrode surfaces carried adjacent said tissue contacting surfaces of each said jaw and disposed to engage said tissue when grasped, said two electrode surfaces on said first jaw being in offset relation with said two electrode surfaces on said second jaw, and said facing electrode surfaces being of like polarity, said electrode surfaces being connectable to a power source for providing an electrical current between said electrode surfaces.
2. The apparatus of claim 1 further comprising a cutting blade movably disposed between at least two of said electrode surfaces wherein said at least two electrode surfaces have opposite polarity.
3. The apparatus of claim 1 wherein said tissue contacting surfaces of said first and second jaws each have opposed elongated edges and said electrode surfaces are located on the edges of said tissue contacting surfaces.
4. A tissue grasping and cutting apparatus comprising:
two grasping jaws, each jaw including an insulating tissue contacting surface;
said grasping jaws being relatively movable for grasping tissue between said tissue contacting surfaces;
said jaws further comprising two spaced-apart electrode surfaces adjacent said insulating tissue contacting surface, said jaws being in face-to-face relationship to provide a first offset face-to-face electrode surface pair, face-to-face insulating surfaces, and a second offset face-to-face electrode surface pair;
and said electrode surfaces being connectable to a power source for providing an electrical current between said one and said other electrode surface pairs, said electrode surfaces comprising a particular offset face-to-face electrode surface pair being of like polarity.
two grasping jaws, each jaw including an insulating tissue contacting surface;
said grasping jaws being relatively movable for grasping tissue between said tissue contacting surfaces;
said jaws further comprising two spaced-apart electrode surfaces adjacent said insulating tissue contacting surface, said jaws being in face-to-face relationship to provide a first offset face-to-face electrode surface pair, face-to-face insulating surfaces, and a second offset face-to-face electrode surface pair;
and said electrode surfaces being connectable to a power source for providing an electrical current between said one and said other electrode surface pairs, said electrode surfaces comprising a particular offset face-to-face electrode surface pair being of like polarity.
5. The apparatus of claim 4 further comprising a cutting blade disposed between said first offset face-to-face electrode surface pair and said second offset face-to-face electrode surface pair.
6. A method of promoting coagulation in tissue, comprising:
providing a pair of grasping jaws, each jaw including an insulating tissue contacting surface in face-to-face relation with said tissue contacting surface of said other jaw, said jaws further comprising two spaced-apart electrode surfaces adjacent said insulating tissue contacting surface, said jaws providing first offset face-to-face electrode surface pair, face-to-face insulating surfaces, and a second offset face-to- face electrode surface pair, said electrode surfaces being connectable to a power source for providing an electrical current between said first and said second electrode surface pairs, said electrode surfaces comprising a particular electrode surface pair being of like polarity;
closing said jaws on tissue to be coagulated, with said tissue contacting surfaces in contact with said tissue; and connecting said electrode surfaces to a current source to create a current flow between said first and said second electrode surface pairs and through tissue located between said tissue contacting surfaces to promote coagulation of tissue grasped between said tissue contacting surfaces.
providing a pair of grasping jaws, each jaw including an insulating tissue contacting surface in face-to-face relation with said tissue contacting surface of said other jaw, said jaws further comprising two spaced-apart electrode surfaces adjacent said insulating tissue contacting surface, said jaws providing first offset face-to-face electrode surface pair, face-to-face insulating surfaces, and a second offset face-to- face electrode surface pair, said electrode surfaces being connectable to a power source for providing an electrical current between said first and said second electrode surface pairs, said electrode surfaces comprising a particular electrode surface pair being of like polarity;
closing said jaws on tissue to be coagulated, with said tissue contacting surfaces in contact with said tissue; and connecting said electrode surfaces to a current source to create a current flow between said first and said second electrode surface pairs and through tissue located between said tissue contacting surfaces to promote coagulation of tissue grasped between said tissue contacting surfaces.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26464401P | 2001-01-26 | 2001-01-26 | |
US60/264,644 | 2001-01-26 | ||
US26605501P | 2001-02-02 | 2001-02-02 | |
US60/266,055 | 2001-02-02 | ||
US10/055,534 | 2002-01-23 | ||
US10/055,534 US20020111624A1 (en) | 2001-01-26 | 2002-01-23 | Coagulating electrosurgical instrument with tissue dam |
PCT/US2002/002329 WO2002058544A2 (en) | 2001-01-26 | 2002-01-24 | Electrosurgical instrument for coagulation and cutting |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2404385A1 true CA2404385A1 (en) | 2002-08-01 |
CA2404385C CA2404385C (en) | 2012-03-27 |
Family
ID=27368856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2404385A Expired - Lifetime CA2404385C (en) | 2001-01-26 | 2002-01-24 | Electrosurgical instrument for coagulation and cutting |
Country Status (9)
Country | Link |
---|---|
US (2) | US20020111624A1 (en) |
EP (3) | EP2263589B1 (en) |
JP (1) | JP2004528869A (en) |
AT (2) | ATE396658T1 (en) |
AU (2) | AU2002236873A1 (en) |
CA (1) | CA2404385C (en) |
DE (2) | DE60226854D1 (en) |
ES (1) | ES2305207T3 (en) |
WO (1) | WO2002058544A2 (en) |
Families Citing this family (722)
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- 2002-01-23 US US10/055,534 patent/US20020111624A1/en not_active Abandoned
- 2002-01-24 DE DE60226854T patent/DE60226854D1/en not_active Expired - Lifetime
- 2002-01-24 AT AT02706005T patent/ATE396658T1/en not_active IP Right Cessation
- 2002-01-24 AU AU2002236873A patent/AU2002236873A1/en not_active Abandoned
- 2002-01-24 DE DE60237963T patent/DE60237963D1/en not_active Expired - Lifetime
- 2002-01-24 ES ES02706005T patent/ES2305207T3/en not_active Expired - Lifetime
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- 2002-01-24 JP JP2002558882A patent/JP2004528869A/en active Pending
- 2002-01-24 CA CA2404385A patent/CA2404385C/en not_active Expired - Lifetime
- 2002-01-24 EP EP02706005A patent/EP1381325B1/en not_active Expired - Lifetime
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- 2002-01-24 EP EP02703240A patent/EP1365698B1/en not_active Expired - Lifetime
- 2002-01-24 WO PCT/US2002/002329 patent/WO2002058544A2/en active Application Filing
- 2002-01-24 AT AT02703240T patent/ATE484252T1/en not_active IP Right Cessation
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2004
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EP2263589A1 (en) | 2010-12-22 |
EP1365698A4 (en) | 2006-04-19 |
US20020111624A1 (en) | 2002-08-15 |
AU2002236873A1 (en) | 2002-08-06 |
EP1365698A2 (en) | 2003-12-03 |
US20050004569A1 (en) | 2005-01-06 |
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