US3866599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiberoptic catheter
Assignee: University of Washington
•
Filing: 1972-01-21
•
Granted: 1975-02-18
•
Expires: 1992-01-21
Abstract
Abstract A catheter of the fiberoptic type is disclosed for insertion into the cardiovascular system. The catheter comprises a flexible element with light-conducting fibers therein extending from one end of the element to the other. A recess is provided adjacent one end of the catheter to prevent the optical fibers from contacting a vessel wall when the catheter is inserted therein.
Inventors
- 👤 Curtis C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:00
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6852; A61B5/6859; A61B5/0059; A61B5/0082; A61B5/0084; A61B5/02; A61B5/021; A61B5/0215; A61B5/145; A61B5/14503; A61B5/1455; A61B5/1459; A61B5/6853; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0082; A61M25/10; A61M2025/0073; A61M2025/1043; A61M2025/1052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A catheter for insertion into the cardiovascular system comprising an elongated flexible element having a multiplicity of light-conducting fibers extending therethrough, a recess formed in the distal end of the element, the recess cutting across said fibers at an angle to the longitudinal axis of the fibers, the distal end of the catheter preventing the light conducting fibers from contacting said vessel wall, and an expandable sleeve located near the distal end and on the exterior of said catheter whereby upon expansion of the sleeve, it extends beyond said element to further maintain a space between the distal end of the fibers and the end of the sleeve.
Claim 2
Dependent Claim
108 words
A catheter for insertion into the cardiovascular system comprising an elongated flexible element having a multiplicity of light-conducting fibers extending therethrough, a recess formed in the distal end of the element, the recess cutting across said fibers at an angle to the longitudinal axis of the fibers, the distal end of the catheter preventing the light conducting fibers from contacting said vessel wall, and an expandable sleeve located near the distal end and on the exterior of said catheter whereby upon expansion of the sleeve, it extends beyond said element to further maintain a space between the distal end of the fibers and the end of the sleeve.
References Cited (Backward Citations)
US3146775A
Cited
US3253594A
Cited
US3417745A
Cited
US3335715A
Cited
US3438375A
Cited
US3690769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |