CA2244076A1 - Radio frequency dilator sheath - Google Patents
Radio frequency dilator sheathInfo
- Publication number
- CA2244076A1 CA2244076A1 CA002244076A CA2244076A CA2244076A1 CA 2244076 A1 CA2244076 A1 CA 2244076A1 CA 002244076 A CA002244076 A CA 002244076A CA 2244076 A CA2244076 A CA 2244076A CA 2244076 A1 CA2244076 A1 CA 2244076A1
- Authority
- CA
- Canada
- Prior art keywords
- sheath
- electrical
- radio frequency
- dilator
- dilator sheath
- 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
Abstract
A medical device (10) such as a radio frequency dilator sheath for separating an encapsulated elongated structure (11) such as an electrical cardiac lead implanted in biological tissue (12) such as a vessel leading to or from a patient's heart. The radio frequency dilator sheath includes inner and outer coaxial dilator sheaths (13 and 28) with respective beveled distal ends (18 and 36) for mechanically loosening and separating encapsulating tissue from an implanted electric cardiac lead.
The beveled distal end of the inner sheath is truncated to form a transverse face or surface (89) that is approximately perpendicular to the longitudinal axis of the sheath. Electrical conductors (16 and 17) are positioned about the distal end (14) and passage (15) of the inner dilator sheath. When energized, the electrical conductor emits an electrical arc which electrically separates encapsulating biological tissue from the elongated electrical structure implanted therein and placed in the passage of the inner elongated dilator sheath.
The beveled distal end of the inner sheath is truncated to form a transverse face or surface (89) that is approximately perpendicular to the longitudinal axis of the sheath. Electrical conductors (16 and 17) are positioned about the distal end (14) and passage (15) of the inner dilator sheath. When energized, the electrical conductor emits an electrical arc which electrically separates encapsulating biological tissue from the elongated electrical structure implanted therein and placed in the passage of the inner elongated dilator sheath.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3196196P | 1996-11-27 | 1996-11-27 | |
| US3852197P | 1997-02-26 | 1997-02-26 | |
| US60/038,521 | 1997-02-26 | ||
| US60/031,961 | 1997-02-26 | ||
| PCT/US1997/021864 WO1998023324A1 (en) | 1996-11-27 | 1997-11-26 | Radio frequency dilator sheath |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2244076A1 true CA2244076A1 (en) | 1998-06-04 |
| CA2244076C CA2244076C (en) | 2005-12-13 |
Family
ID=35517632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002244076A Expired - Lifetime CA2244076C (en) | 1996-11-27 | 1997-11-26 | Radio frequency dilator sheath |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2244076C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3634288A4 (en) * | 2017-06-08 | 2021-06-30 | Neuronoff, Inc. | Electrode cured and manufactured in the body, and related methods and devices |
-
1997
- 1997-11-26 CA CA002244076A patent/CA2244076C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3634288A4 (en) * | 2017-06-08 | 2021-06-30 | Neuronoff, Inc. | Electrode cured and manufactured in the body, and related methods and devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2244076C (en) | 2005-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20171127 |