CA2320651A1 - Multi-port side-fire coagulator - Google Patents
Multi-port side-fire coagulator Download PDFInfo
- Publication number
- CA2320651A1 CA2320651A1 CA002320651A CA2320651A CA2320651A1 CA 2320651 A1 CA2320651 A1 CA 2320651A1 CA 002320651 A CA002320651 A CA 002320651A CA 2320651 A CA2320651 A CA 2320651A CA 2320651 A1 CA2320651 A1 CA 2320651A1
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- CA
- Canada
- Prior art keywords
- plenum
- apertures
- tube
- gas
- electrosurgical apparatus
- 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.)
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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
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
Abstract
An electrosurgical apparatus for coagulating tissue used in combination with an endoscope which includes an elongated flexible tube having a plurality of side-ports located therethrough. The tube extends through a working channel of the endoscope and an ionizable gas is supplied to the tube at or near the proximal end of the tube. A diffusing member directs the ionizable gas from the proximal end of the tube through each of the side-ports towards the tissue. An electrode is used for ionizing the gas prior to the gas exiting the side-ports.
Claims (27)
1. An electrosurgical apparatus for coagulating tissue, comprising:
an elongated flexible tube having a proximal end and a distal end, said tube comprising a plurality of side-ports which are disposed therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue; and at least one electrode for ionizing said gas prior to said ionizable gas exiting said side-ports.
an elongated flexible tube having a proximal end and a distal end, said tube comprising a plurality of side-ports which are disposed therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue; and at least one electrode for ionizing said gas prior to said ionizable gas exiting said side-ports.
2. An electrosurgical apparatus according to claim 1 further comprising a source for supplying ionizable gas to said proximal end of said tube.
3. An electrosurgical apparatus according to claim 1 wherein said side-ports are arranged in a radial manner about said elongated flexible tube.
4. An electrosurgical apparatus according to claim 1 wherein said side-ports are aligned longitudinally along said elongated flexible tube.
5. An electrosurgical apparatus according to claim 1 wherein said diffusing member comprises:
a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports.
a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports.
6. An electrosurgical apparatus according to claim 5 further comprising a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports.
7. An electrosurgical apparatus according to claim 5 further comprising a regulator for regulating the flow of said gas through said first plenum into each of said apertures.
8. An electrosurgical apparatus according to claim 7 wherein said regulator comprises a second plenum which is rotatably mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of apertures located therethrough, said second plenum rotatable from a first position in which the apertures of said second plenum and the apertures of said first plenum are aligned to permit said ionizable gas to flow between each aligned aperture to each of said side-ports, to at least one subsequent position in which less than the plurality of apertures of said second plenum are aligned with the apertures of said first plenum and permit said ionizable gas to only flow between the aligned apertures and to each corresponding side-port.
9. An electrosurgical apparatus according to claim 7 wherein said regulator comprises a second plenum which is selectively mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of apertures which are pre-sized to regulate said ionizable gas flow through each of said plurality of apertures to each of said corresponding apertures of said first plenum.
10. An electrosurgical apparatus according to claim 7 wherein said regulator comprises a second plenum which is selectively mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of shutters which are selectively positionable from a first position wherein the shutters are closed to at least one additional position where the shutters are opened to a desired position to control the flow of said ionizable gas through each of said shutters to said corresponding apertures of said first plenum.
11. An electrosurgical apparatus according to claim 1 wherein said ionizable gas is argon.
12. An electrosurgical apparatus according to claim 1 further comprising a regulator for regulating the electrical discharge from each electrode.
13. An electrosurgical apparatus according to claim 12 wherein said regulator comprises at least one control switch coupled to said endoscope.
14. An electrosurgical apparatus according to claim 1 wherein said tube further comprises a baffle disposed therein for causing said gas to exit said side-ports of said tube with predetermined flow characteristics.
15. An electrosurgical apparatus according to claim 14 wherein said baffle is helically-shaped and disposed within at least one of said ducts.
16. An electrosurgical apparatus for coagulating tissue, comprising:
an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising:
a first plenum disposed within said tube having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said gas to one of said side-ports; and
an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising:
a first plenum disposed within said tube having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said gas to one of said side-ports; and
17 at least one electrode for ionizing said gas prior to said gas exiting said side-ports.
17. An electrosurgical apparatus according to claim 16 further comprising a source for supplying ionizable gas to said proximal end of said tube.
17. An electrosurgical apparatus according to claim 16 further comprising a source for supplying ionizable gas to said proximal end of said tube.
18. An electrosurgical apparatus according to claim 16 wherein said side-ports are aligned longitudinally along said elongated flexible tube.
19. An electrosurgical apparatus according to claim 16 further comprising a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports.
20. An electrosurgical apparatus according to claim 16 further comprising a regulator for regulating the flow of said ionizable gas through said first plenum into each of said apertures, said regulator comprising a second plenum which is rotatably mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of apertures located therethrough, said second plenum rotatable from a first position in which the apertures of said second plenum and the apertures of said first plenum are aligned to permit said gas to flow between each aligned aperture to each of said side-ports, to at least one subsequent position in which less than the plurality of apertures of said second plenum are aligned with the apertures of said first plenum and permit said gas to only flow between the aligned apertures and to each corresponding side-port.
21. An electrosurgical apparatus according to claim 16 further comprising a regulator for regulating the flow of said ionizable gas through said first plenum into each of said apertures, said regulator comprising a second plenum which is selectively mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of apertures which are pre-sized to regulate said gas flow through each of said plurality of apertures to each of said corresponding apertures of said first plenum.
22. An electrosurgical apparatus according to claim 16 further comprising a regulator for regulating the flow of said ionizable gas through said first plenum into each of said apertures, said regulator comprising a second plenum which is selectively mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of shutters which are selectively positionable from a first position wherein the shutters are closed to at least one additional position where the shutters are opened to a desired position to control the flow of said gas through each of said shutters to said corresponding apertures of said first plenum.
23. An electrosurgical apparatus according to claim 16 further comprising a regulator for regulating the electrical discharge from each electrode.
24. An electrosurgical apparatus for coagulating tissue, comprising:
an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising:
a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports;
a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports; and a regulator for regulating the flow of said gas through said first plenum into each of said apertures.
an elongated flexible tube having a proximal end and a distal end, said proximal end of said tube sufficiently dimensioned to extend through a working channel of an endoscope;
said tube comprising a plurality of radially disposed side-ports which are located therethrough between said proximal and distal ends;
a diffusing member for directing ionizable gas from said proximal end of said tube through each of said side-ports and towards said tissue, said diffusing member comprising:
a first plenum disposed within said tube between said proximate end and said distal end, said first plenum having a plurality of apertures located therethrough; and a corresponding plurality of ducts coupled to each of said apertures which each direct an amount of said ionizable gas to one of said side-ports;
a corresponding plurality of electrodes each disposed within one of said ducts for ionizing said gas prior to said gas exiting said side-ports; and a regulator for regulating the flow of said gas through said first plenum into each of said apertures.
25. An electrosurgical apparatus according to claim 24 wherein said regulator comprises a second plenum which is rotatably mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of apertures located therethrough, said second plenum rotatable from a first position in which the apertures of said second plenum and the apertures of said first plenum are aligned to permit said ionizable gas to flow between each aligned aperture to each of said side-ports, to at least one subsequent position in which less than the plurality of apertures of said second plenum are aligned with the apertures of said first plenum and permit said gas to only flow between the aligned apertures and to each corresponding side-port.
26. An electrosurgical apparatus according to claim 24 wherein said regulator comprises a second plenum which is selectively mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of apertures which are pre-sized to regulate said gas flow through each of said plurality of apertures to each of said corresponding apertures of said first plenum.
27. An electrosurgical apparatus according to claim 24 wherein said regulator comprises a second plenum which is selectively mounted within said tube in close abutment with and proximal to said first plenum and which includes a plurality of shutters which are selectively positionable from a first position wherein the shutters are closed to at least one additional position where the shutters are opened to a desired position to control the flow of said ionizable gas through each of said shutters to said corresponding apertures of said first plenum.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15771899P | 1999-10-05 | 1999-10-05 | |
US60/157,718 | 1999-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2320651A1 true CA2320651A1 (en) | 2001-04-05 |
CA2320651C CA2320651C (en) | 2011-02-01 |
Family
ID=22564976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2320651A Expired - Fee Related CA2320651C (en) | 1999-10-05 | 2000-09-25 | Multi-port side-fire coagulator |
Country Status (7)
Country | Link |
---|---|
US (4) | US6616660B1 (en) |
EP (1) | EP1090597B1 (en) |
JP (1) | JP4109410B2 (en) |
AU (1) | AU768456B2 (en) |
CA (1) | CA2320651C (en) |
DE (1) | DE60018002T2 (en) |
ES (1) | ES2235731T3 (en) |
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-
2000
- 2000-09-20 US US09/666,954 patent/US6616660B1/en not_active Expired - Lifetime
- 2000-09-25 CA CA2320651A patent/CA2320651C/en not_active Expired - Fee Related
- 2000-10-02 DE DE60018002T patent/DE60018002T2/en not_active Expired - Lifetime
- 2000-10-02 ES ES00121239T patent/ES2235731T3/en not_active Expired - Lifetime
- 2000-10-02 EP EP00121239A patent/EP1090597B1/en not_active Expired - Lifetime
- 2000-10-03 AU AU62440/00A patent/AU768456B2/en not_active Ceased
- 2000-10-05 JP JP2000306324A patent/JP4109410B2/en not_active Expired - Fee Related
-
2002
- 2002-12-10 US US10/316,228 patent/US6852112B2/en not_active Expired - Lifetime
-
2004
- 2004-08-17 US US10/919,614 patent/US7955330B2/en not_active Expired - Fee Related
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2008
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EP1090597B1 (en) | 2005-02-09 |
US7955330B2 (en) | 2011-06-07 |
US20030105458A1 (en) | 2003-06-05 |
EP1090597A1 (en) | 2001-04-11 |
US7927330B2 (en) | 2011-04-19 |
DE60018002T2 (en) | 2006-01-12 |
AU768456B2 (en) | 2003-12-11 |
US20050015086A1 (en) | 2005-01-20 |
AU6244000A (en) | 2001-04-12 |
US6852112B2 (en) | 2005-02-08 |
ES2235731T3 (en) | 2005-07-16 |
US6616660B1 (en) | 2003-09-09 |
CA2320651C (en) | 2011-02-01 |
JP4109410B2 (en) | 2008-07-02 |
US20100063501A9 (en) | 2010-03-11 |
DE60018002D1 (en) | 2005-03-17 |
JP2001145633A (en) | 2001-05-29 |
US20080215045A1 (en) | 2008-09-04 |
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