CA2378594A1 - Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue - Google Patents
Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue Download PDFInfo
- Publication number
- CA2378594A1 CA2378594A1 CA002378594A CA2378594A CA2378594A1 CA 2378594 A1 CA2378594 A1 CA 2378594A1 CA 002378594 A CA002378594 A CA 002378594A CA 2378594 A CA2378594 A CA 2378594A CA 2378594 A1 CA2378594 A1 CA 2378594A1
- Authority
- CA
- Canada
- Prior art keywords
- catheter
- ablation
- filter
- ablation instrument
- instrument
- 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
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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
- A61B18/18—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
- A61B18/22—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/24—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter
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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
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- 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
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
-
- 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
Abstract
An ablation catheter system for capturing and removing necrotic tissue and thrombi generated during an ablative procedure is disclosed. The catheter typically includes an elongate member, a filtration assembly disposed within the distal region, and an ablation instrument at the distal end. Alternatively, the ablation instrument is carried on the distal end of an ablation catheter, which is disposed within a lumen of the catheter system. The catheter may further include an aspiration port and lumen. Methods of using the devices in preventing distal embolization during ablative procedur e are disclosed.
Claims (36)
1. A percutaneous catheter for ablation of ectopic foci, comprising:
an elongate member having a proximal end, a distal end, and an ablation instrument mounted at the distal end of the elongate member; and an expandable filter mounted on a distal region of the elongate member, wherein during use, the catheter is operated to ablate ectopic foci and the filter is expanded to capture necrosed tissue particles generated during the ablation.
an elongate member having a proximal end, a distal end, and an ablation instrument mounted at the distal end of the elongate member; and an expandable filter mounted on a distal region of the elongate member, wherein during use, the catheter is operated to ablate ectopic foci and the filter is expanded to capture necrosed tissue particles generated during the ablation.
2. The catheter of claim 1, wherein the ablation instrument is a thermal ablation.
3. The catheter of claim 1, wherein the ablation instrument is a laser ablation device.
4. The catheter of claim 1, wherein the ablation instrument is a microwave ablation device.
5. The catheter of claim 1, wherein the filter surrounds the ablation instrument.
6. The catheter of claim 1, wherein the filter is disposed proximal the ablation instrument.
7. The catheter of claim 6, wherein the filter has a proximal edge circumferentially in contact with an outer surface of the elongate member, and a distal edge which expands radially outward.
8. The catheter of claim 1, wherein the catheter includes a second lumen communicating with an aspiration port.
9. The catheter of claim 1, wherein the filter may be a basket.
10. A percutaneous guiding catheter system for ablation of ectopic foci, comprising:
an elongate member having a proximal end, a distal end, and a lumen therebetween;
an expandable filter mounted on a distal region of the elongate member;
and an ablation catheter disposed within the lumen of the elongate member, and having an ablation instrument at its distal end.
an elongate member having a proximal end, a distal end, and a lumen therebetween;
an expandable filter mounted on a distal region of the elongate member;
and an ablation catheter disposed within the lumen of the elongate member, and having an ablation instrument at its distal end.
11. The catheter of claim 10, wherein the ablation instrument is a thermal ablation.
12. The catheter of claim 10, wherein the ablation instrument is a laser ablation device.
13. The catheter of claim 10, wherein the ablation instrument is a microwave ablation device.
14. The catheter of claim 10, wherein the ablation instrument extends beyond the distal end of the elongate member.
15. The catheter of claim 10, wherein the catheter includes a second lumen communicating with an aspiration port.
16. The catheter of claim 10, wherein the filter has a proximal edge circumferentially in contact with an outer surface of the elongate member, and a distal edge which expands radially outward.
17. The catheter of claim 10, wherein the proximal end of the catheter is adapted for attachment to a vacuum.
18. The catheter of claim 10, wherein the filter is a basket.
19. A method for ablation of ectopic foci, comprising the steps of:
providing a catheter having a proximal end, a distal end, an ablation instrument at the distal end, and a filter on a distal region of the elongate member;
inserting the catheter into a vessel;
positioning the ablation instrument adjacent the ectopic foci;
expanding the filter; and ablating the ectopic foci, wherein necrosed tissue particles generated during ablation are captured by the filter.
providing a catheter having a proximal end, a distal end, an ablation instrument at the distal end, and a filter on a distal region of the elongate member;
inserting the catheter into a vessel;
positioning the ablation instrument adjacent the ectopic foci;
expanding the filter; and ablating the ectopic foci, wherein necrosed tissue particles generated during ablation are captured by the filter.
20. The method of claim 19, wherein the ectopic foci are located in the left atrium.
21. The method of claim 19, wherein the ectopic foci are located in the right atrium.
22. The method of claim 19, wherein the ectopic foci are located in the pulmonary vein.
23. The method of claim 19, wherein the ablation instrument is a thermal ablation.
24. The method of claim 19, wherein the ablation instrument is a laser ablation device.
25. The method of claim 19, wherein the ablation instrument is a microwave ablation device.
26. The method of claim 19, wherein the filter surrounds the ablation instrument.
27. The method of claim 19, wherein the filter is disposed proximal the ablation instrument
28. The method of claim 27, wherein the filter has a proximal edge circumferentially in contact with an outer surface of the catheter, and a distal edge which expands radially outward.
29. The method of claim 19, wherein the catheter is inserted into the femoral artery.
30. The method of claim 19, wherein the catheter is inserted into the right subclavian artery.
31. The method of claim 19, wherein the catheter is inserted into the left subclavian artery.
32. The method of claim 19, wherein the filter is mounted on a sheath having a lumen which carries the catheter having the ablation instrument.
33. The method of claim 19, wherein the catheter includes a lumen communicating with an aspiration port at the distal end.
34. The method of claim 19, wherein the catheter is inserted into the femoral vein.
35. The method of claim 19, wherein the catheter is inserted into the subclavian vein.
36. The method of claim 34, further comprising the step of aspirating necrosed tissue from the aspiration port.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/369,060 | 1999-08-04 | ||
US09/369,060 US6235044B1 (en) | 1999-08-04 | 1999-08-04 | Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue |
PCT/US2000/021242 WO2001010320A1 (en) | 1999-08-04 | 2000-08-03 | Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2378594A1 true CA2378594A1 (en) | 2001-02-15 |
CA2378594C CA2378594C (en) | 2010-11-09 |
Family
ID=23453931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2378594A Expired - Fee Related CA2378594C (en) | 1999-08-04 | 2000-08-03 | Percutaneous catheter and guidewire for filtering during ablation of myocardial or vascular tissue |
Country Status (7)
Country | Link |
---|---|
US (4) | US6235044B1 (en) |
EP (1) | EP1294299B1 (en) |
JP (1) | JP2004509650A (en) |
AT (1) | ATE296061T1 (en) |
CA (1) | CA2378594C (en) |
DE (1) | DE60020404D1 (en) |
WO (1) | WO2001010320A1 (en) |
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-
1999
- 1999-08-04 US US09/369,060 patent/US6235044B1/en not_active Expired - Lifetime
-
2000
- 2000-08-03 JP JP2001514849A patent/JP2004509650A/en active Pending
- 2000-08-03 EP EP00952473A patent/EP1294299B1/en not_active Expired - Lifetime
- 2000-08-03 DE DE60020404T patent/DE60020404D1/en not_active Expired - Lifetime
- 2000-08-03 CA CA2378594A patent/CA2378594C/en not_active Expired - Fee Related
- 2000-08-03 AT AT00952473T patent/ATE296061T1/en not_active IP Right Cessation
- 2000-08-03 WO PCT/US2000/021242 patent/WO2001010320A1/en active IP Right Grant
-
2001
- 2001-01-22 US US09/766,940 patent/US6673090B2/en not_active Expired - Fee Related
-
2003
- 2003-11-03 US US10/699,727 patent/US7326226B2/en not_active Expired - Lifetime
-
2007
- 2007-12-13 US US11/955,883 patent/US20080097426A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20040093016A1 (en) | 2004-05-13 |
JP2004509650A (en) | 2004-04-02 |
WO2001010320A1 (en) | 2001-02-15 |
US7326226B2 (en) | 2008-02-05 |
US6235044B1 (en) | 2001-05-22 |
DE60020404D1 (en) | 2005-06-30 |
EP1294299B1 (en) | 2005-05-25 |
US6673090B2 (en) | 2004-01-06 |
EP1294299A1 (en) | 2003-03-26 |
US20080097426A1 (en) | 2008-04-24 |
ATE296061T1 (en) | 2005-06-15 |
US20010005789A1 (en) | 2001-06-28 |
CA2378594C (en) | 2010-11-09 |
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