CA2552219A1 - Cryosurgical devices for endometrial ablation - Google Patents
Cryosurgical devices for endometrial ablation Download PDFInfo
- Publication number
- CA2552219A1 CA2552219A1 CA002552219A CA2552219A CA2552219A1 CA 2552219 A1 CA2552219 A1 CA 2552219A1 CA 002552219 A CA002552219 A CA 002552219A CA 2552219 A CA2552219 A CA 2552219A CA 2552219 A1 CA2552219 A1 CA 2552219A1
- Authority
- CA
- Canada
- Prior art keywords
- heat exchanger
- cryoablation system
- extensions
- cannula
- transfer fluid
- 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
- 238000002679 ablation Methods 0.000 title claims abstract 4
- 230000002357 endometrial effect Effects 0.000 title claims abstract 4
- 239000013529 heat transfer fluid Substances 0.000 claims abstract 11
- 239000000523 sample Substances 0.000 claims abstract 9
- 239000012530 fluid Substances 0.000 claims abstract 8
- 239000003507 refrigerant Substances 0.000 claims abstract 6
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
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
- A61B2017/4216—Operations on uterus, e.g. endometrium
-
- 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
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/0022—Balloons
-
- 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
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0212—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques using an instrument inserted into a body lumen, e.g. catheter
-
- 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
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0231—Characteristics of handpieces or probes
- A61B2018/0262—Characteristics of handpieces or probes using a circulating cryogenic fluid
Abstract
A cryoablation system for performing endometrial ablation comprising an elongated tubular cannula having a proximal end, a distal end, and a longitudinal axis, an expandable balloon extending from the distal end of the cannula and fluidly connected to a source of heat transfer fluid by at least one fluid path, a pump for circulating the heat transfer fluid into and out of the balloon, a probe handle coupled to the proximal end of the cannula and in fluidic communication with the balloon through the cannula, and a heat exchanger for varying the temperature of the heat transfer fluid, wherein the heat exchanger is fluidly connected to a secondary refrigerant source, and wherein the heat exchanger comprises an outer tubular wall and a plurality of fins extending from the tubular wall toward the interior portion of the heat exchanger.
Claims (16)
1. A cryoablation system for performing endometrial ablation, comprising:
an elongated tubular cannula having a proximal end, a distal end, a longitudinal axis, and first and second internal fluid paths, wherein the first internal fluid path is internal to the second internal fluid path;
a probe tip at the distal end of the cannula;
a probe handle extending from the proximal end of the cannula;
a heat exchanger comprising a plurality of extensions within the first fluid path; and a source of compressed refrigerant fluidly connected to the probe handle;
wherein the first internal fluid path surrounds a portion of the probe tip.
an elongated tubular cannula having a proximal end, a distal end, a longitudinal axis, and first and second internal fluid paths, wherein the first internal fluid path is internal to the second internal fluid path;
a probe tip at the distal end of the cannula;
a probe handle extending from the proximal end of the cannula;
a heat exchanger comprising a plurality of extensions within the first fluid path; and a source of compressed refrigerant fluidly connected to the probe handle;
wherein the first internal fluid path surrounds a portion of the probe tip.
2. The cryoablation system of claim 1, wherein the probe tip comprises an expandable member.
3. The cryoablation system of claim 1, wherein the heat exchanger further comprises a tubular wall having an inner surface and an outer surface, and wherein the plurality of extensions extend from the inner surface of the tubular wall.
4. The cryoablation system of claim 3, wherein the each of the plurality of extensions is spaced from each adjacent extension by a gap distance.
5. The cryoablation system of claim 4, wherein the gap distance is identical between each of the plurality of extensions.
6. The cryoablation system of claim 1, wherein the plurality of extensions are continuous along the length of the heat exchanger.
7. The cryoablation system of claim 1, wherein the plurality of extensions are discontinuous along the length of the heat exchanger.
8. A cryoablation system for performing endometrial ablation, comprising:
an elongated tubular cannula having a proximal end, a distal end, and a longitudinal axis;
an expandable balloon extending from the distal end of the cannula and fluidly connected to a source of heat transfer fluid by at least one fluid path;
a pump for circulating the heat transfer fluid into and out of the balloon;
a probe handle coupled to the proximal end of the cannula and in fluidic communication with the balloon through the cannula; and a heat exchanger for varying the temperature of the heat transfer fluid, wherein the heat exchanger is fluidly connected to a secondary refrigerant source, and wherein the heat exchanger comprises an outer tubular wall and a plurality of fins extending from the tubular wall toward the interior portion of the heat exchanger.
an elongated tubular cannula having a proximal end, a distal end, and a longitudinal axis;
an expandable balloon extending from the distal end of the cannula and fluidly connected to a source of heat transfer fluid by at least one fluid path;
a pump for circulating the heat transfer fluid into and out of the balloon;
a probe handle coupled to the proximal end of the cannula and in fluidic communication with the balloon through the cannula; and a heat exchanger for varying the temperature of the heat transfer fluid, wherein the heat exchanger is fluidly connected to a secondary refrigerant source, and wherein the heat exchanger comprises an outer tubular wall and a plurality of fins extending from the tubular wall toward the interior portion of the heat exchanger.
9. The cryoablation system of claim 8, wherein the heat exchanger is positioned within the probe handle so that the secondary refrigerant can cool the heat transfer fluid to a treatment temperature before the heat transfer fluid is provided to the balloon.
10. The cryoablation system of claim 8, wherein the heat exchanger is positioned within the cannula so that the secondary refrigerant can cool the heat transfer fluid to a treatment temperature before the heat transfer fluid is provided to the balloon.
11. The cryoablation system of claim 8, wherein the heat exchanger is positioned within a console of the system so that the secondary refrigerant can cool the heat transfer fluid to a treatment temperature before the fluid is provided to the probe handle.
12. The cryoablation system of claim 8, wherein the heat exchanger further comprises a tubular wall having an inner surface and an outer surface, and wherein the plurality of extensions extend from the inner surface of the tubular wall.
13. The cryoablation system of claim 12, wherein the each of the plurality of extensions is spaced from each adjacent extension by a gap distance.
14. The cryoablation system of claim 13, wherein the gap distance is identical between each of the plurality of extensions.
15. The cryoablation system of claim 8, wherein the plurality of extensions are continuous along the length of the heat exchanger.
16. The cryoablation system of claim 8, wherein the plurality of extensions are discontinuous along the length of the heat exchanger.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53241903P | 2003-12-22 | 2003-12-22 | |
| US53242003P | 2003-12-22 | 2003-12-22 | |
| US60/532,419 | 2003-12-22 | ||
| US60/532,420 | 2003-12-22 | ||
| US54633404P | 2004-02-20 | 2004-02-20 | |
| US60/546,334 | 2004-02-20 | ||
| PCT/US2004/043154 WO2005063137A2 (en) | 2003-12-22 | 2004-12-22 | Cryosurgical devices for endometrial ablation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2552219A1 true CA2552219A1 (en) | 2005-07-14 |
| CA2552219C CA2552219C (en) | 2011-11-29 |
Family
ID=34743698
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2552219A Expired - Fee Related CA2552219C (en) | 2003-12-22 | 2004-12-22 | Cryosurgical devices for endometrial ablation |
| CA002551555A Abandoned CA2551555A1 (en) | 2003-12-22 | 2004-12-22 | Cryosurgical devices and methods for endometrial ablation |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002551555A Abandoned CA2551555A1 (en) | 2003-12-22 | 2004-12-22 | Cryosurgical devices and methods for endometrial ablation |
Country Status (9)
| Country | Link |
|---|---|
| US (3) | US7381208B2 (en) |
| EP (2) | EP1706050A2 (en) |
| AU (3) | AU2004308416B2 (en) |
| BR (2) | BRPI0417922A (en) |
| CA (2) | CA2552219C (en) |
| IL (2) | IL176430A0 (en) |
| MX (2) | MXPA06007220A (en) |
| NZ (2) | NZ548680A (en) |
| WO (2) | WO2005063137A2 (en) |
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- 2004-12-22 AU AU2004308416A patent/AU2004308416B2/en not_active Expired - Fee Related
- 2004-12-22 CA CA2552219A patent/CA2552219C/en not_active Expired - Fee Related
- 2004-12-22 BR BRPI0417922-6A patent/BRPI0417922A/en not_active IP Right Cessation
- 2004-12-22 WO PCT/US2004/043154 patent/WO2005063137A2/en active Application Filing
- 2004-12-22 EP EP04815256A patent/EP1706051A2/en not_active Withdrawn
- 2004-12-22 NZ NZ548680A patent/NZ548680A/en unknown
- 2004-12-22 CA CA002551555A patent/CA2551555A1/en not_active Abandoned
- 2004-12-22 BR BRPI0417921-8A patent/BRPI0417921A/en not_active IP Right Cessation
- 2004-12-22 MX MXPA06007220A patent/MXPA06007220A/en active IP Right Grant
- 2004-12-22 NZ NZ548679A patent/NZ548679A/en not_active Application Discontinuation
- 2004-12-22 US US11/020,792 patent/US7381208B2/en active Active
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- 2004-12-22 US US11/020,791 patent/US7500973B2/en not_active Expired - Fee Related
- 2004-12-22 AU AU2004308417A patent/AU2004308417B2/en not_active Expired - Fee Related
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2006
- 2006-06-20 IL IL176430A patent/IL176430A0/en unknown
- 2006-06-20 IL IL176429A patent/IL176429A0/en unknown
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2009
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2010
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| AU2004308417A1 (en) | 2005-07-14 |
| US20050177147A1 (en) | 2005-08-11 |
| US7500973B2 (en) | 2009-03-10 |
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| WO2005063136A3 (en) | 2005-08-25 |
| WO2005063137A2 (en) | 2005-07-14 |
| AU2004308416A1 (en) | 2005-07-14 |
| NZ548680A (en) | 2009-09-25 |
| EP1706051A2 (en) | 2006-10-04 |
| MXPA06007217A (en) | 2007-01-19 |
| WO2005063137A3 (en) | 2008-02-14 |
| CA2552219C (en) | 2011-11-29 |
| US20050177148A1 (en) | 2005-08-11 |
| EP1706050A2 (en) | 2006-10-04 |
| US20090138000A1 (en) | 2009-05-28 |
| AU2004308417B2 (en) | 2010-04-08 |
| BRPI0417922A (en) | 2007-04-17 |
| IL176429A0 (en) | 2006-10-05 |
| BRPI0417921A (en) | 2007-04-10 |
| US7381208B2 (en) | 2008-06-03 |
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