CA2547953A1 - Cryogenic catheter system - Google Patents
Cryogenic catheter system Download PDFInfo
- Publication number
- CA2547953A1 CA2547953A1 CA002547953A CA2547953A CA2547953A1 CA 2547953 A1 CA2547953 A1 CA 2547953A1 CA 002547953 A CA002547953 A CA 002547953A CA 2547953 A CA2547953 A CA 2547953A CA 2547953 A1 CA2547953 A1 CA 2547953A1
- Authority
- CA
- Canada
- Prior art keywords
- catheter
- fluid coolant
- sensor
- console
- pressure
- 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
- A61B18/02—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 cryogenic catheter system provides safe and effective treatment of tissue.
The system includes a catheter that is coupled to a console via fluid and electrical umbilicals.
The console controls the overall operation of the system based to provide and maintain a predetermined temperature at the catheter tip. The console also controls and monitors operating parameters for providing warning indications to the user and terminating operation of the system in the event of a failure that may compromise patient safety.
The system includes a catheter that is coupled to a console via fluid and electrical umbilicals.
The console controls the overall operation of the system based to provide and maintain a predetermined temperature at the catheter tip. The console also controls and monitors operating parameters for providing warning indications to the user and terminating operation of the system in the event of a failure that may compromise patient safety.
Claims (13)
1. A catheter system, comprising:
a cryogenic catheter having a tissue-treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant;
a console coupled to the cryogenic catheter and having a processor for controlling a first pressure of a fluid coolant flowing into the catheter, and for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters, and for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter;
an umbilical system having a first end coupled to the mating end of the catheter and a second end coupled to the console; and a leak detection system having first and second electrodes disposed on the cryogenic catheter and coupled to the console, wherein the leak detection system measures a differential electrical impedance between the first electrode and the second electrode.
a cryogenic catheter having a tissue-treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant;
a console coupled to the cryogenic catheter and having a processor for controlling a first pressure of a fluid coolant flowing into the catheter, and for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters, and for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter;
an umbilical system having a first end coupled to the mating end of the catheter and a second end coupled to the console; and a leak detection system having first and second electrodes disposed on the cryogenic catheter and coupled to the console, wherein the leak detection system measures a differential electrical impedance between the first electrode and the second electrode.
2. The catheter system according to claim 1, wherein the at least one internal flow lumen includes a first internal lumen and a second internal lumen, and wherein a first portion of the first and second electrodes is partially disposed inside the first internal lumen, and a second portion of the first and second electrodes is partially disposed inside the second internal lumen.
3. A catheter system, comprising:
a cryogenic catheter having a tissue-treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant therein;
a console coupled to the cryogenic catheter and having a processor for controlling a first pressure of a fluid coolant flowing into the catheter, for implementing a user selected treatment procedure, for monitoring system operating and safety parameters, for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter; and, a leak detection system having first and second electrodes disposed on the cryogenic catheter and coupled to the console, wherein the leak detection system measures a differential electrical impedance between the first electrode and the second electrode, wherein the leak detection system includes an insulated wire.
a cryogenic catheter having a tissue-treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant therein;
a console coupled to the cryogenic catheter and having a processor for controlling a first pressure of a fluid coolant flowing into the catheter, for implementing a user selected treatment procedure, for monitoring system operating and safety parameters, for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter; and, a leak detection system having first and second electrodes disposed on the cryogenic catheter and coupled to the console, wherein the leak detection system measures a differential electrical impedance between the first electrode and the second electrode, wherein the leak detection system includes an insulated wire.
4. The catheter system according to claim 3, wherein insulated wire has a portion of its insulation removed.
5. A catheter system, comprising:
a console having a processor for controlling outflow of a fluid coolant at a selected pressure, for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters.
a console having a processor for controlling outflow of a fluid coolant at a selected pressure, for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters.
6. The system according to claim 5, further comprising a pressure sensor for measuring pressure of the fluid coolant.
7. The system according to claim 5, further comprising a flow sensor for measuring flow of the fluid coolant.
8. The system according to claim 5, further comprising a vacuum sensor for measuring flow of the fluid coolant.
9. The system according to claim 5, further comprising a medical device having a tissue treating end, at least one internal flow lumen for the flow of the fluid coolant therein and at least one sensor.
10. The system according to claim 9, wherein the at least one sensor is a leak detection device.
11. The system according to claim 9, wherein the at least one sensor is a blood detection device.
12. The system according to claim 9, wherein the at least one sensor is a pressure sensor device.
13. The system according to claim 9, wherein the at least one sensor is a thermocouple device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11717599P | 1999-01-25 | 1999-01-25 | |
| US60/117,175 | 1999-01-25 | ||
| CA002361093A CA2361093C (en) | 1999-01-25 | 2000-01-25 | Cryogenic catheter system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002361093A Division CA2361093C (en) | 1999-01-25 | 2000-01-25 | Cryogenic catheter system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2547953A1 true CA2547953A1 (en) | 2000-07-27 |
| CA2547953C CA2547953C (en) | 2010-11-09 |
Family
ID=36889437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2547953A Expired - Fee Related CA2547953C (en) | 1999-01-25 | 2000-01-25 | Cryogenic catheter system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2547953C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005089853A1 (en) | 2004-03-23 | 2005-09-29 | Cryocath Technologies Inc. | Method and apparatus for inflating and deflating balloon catheters |
| US8491636B2 (en) | 2004-03-23 | 2013-07-23 | Medtronic Cryopath LP | Method and apparatus for inflating and deflating balloon catheters |
| US9555223B2 (en) | 2004-03-23 | 2017-01-31 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| EP2806814B1 (en) * | 2012-01-27 | 2021-01-27 | Medtronic Cryocath LP | Cryogenic medical system with stabilizer |
| WO2023273736A1 (en) * | 2021-06-30 | 2023-01-05 | 海杰亚（北京）医疗器械有限公司 | Method and apparatus for adjusting internal tank pressure of working medium storage tank |
-
2000
- 2000-01-25 CA CA2547953A patent/CA2547953C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8545491B2 (en) | 2004-03-23 | 2013-10-01 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| EP1735041A1 (en) * | 2004-03-23 | 2006-12-27 | Cryocath Technologies inc. | Method and apparatus for inflating and deflating balloon catheters |
| EP1735041A4 (en) * | 2004-03-23 | 2008-04-09 | Cryocath Technologies Inc | Method and apparatus for inflating and deflating balloon catheters |
| US7727228B2 (en) | 2004-03-23 | 2010-06-01 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| US8382747B2 (en) | 2004-03-23 | 2013-02-26 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| US8491636B2 (en) | 2004-03-23 | 2013-07-23 | Medtronic Cryopath LP | Method and apparatus for inflating and deflating balloon catheters |
| WO2005089853A1 (en) | 2004-03-23 | 2005-09-29 | Cryocath Technologies Inc. | Method and apparatus for inflating and deflating balloon catheters |
| US8900222B2 (en) | 2004-03-23 | 2014-12-02 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| US9555223B2 (en) | 2004-03-23 | 2017-01-31 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| US9808301B2 (en) | 2004-03-23 | 2017-11-07 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| US11357563B2 (en) | 2004-03-23 | 2022-06-14 | Medtronic Cryocath Lp | Method and apparatus for inflating and deflating balloon catheters |
| EP2806814B1 (en) * | 2012-01-27 | 2021-01-27 | Medtronic Cryocath LP | Cryogenic medical system with stabilizer |
| WO2023273736A1 (en) * | 2021-06-30 | 2023-01-05 | 海杰亚（北京）医疗器械有限公司 | Method and apparatus for adjusting internal tank pressure of working medium storage tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2547953C (en) | 2010-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170125 |