US3426758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical catheter with balloon leakage indicator
Assignee: American Hospital Supply Corp
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Filing: 1966-10-10
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Granted: 1969-02-11
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Andrew Harautuneian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
IN A MEDICAL CATHETER HAVING AN ELONGATED TUBE WITH A WALL DEFINING TWO LONGITUDINAL LUMENS THEREIN, ONE LUMEN COMMUNICATING WITH AN EXTERIOR SURFACE OF THE TUBE THROUGH AN INFLATION OPENING, WHICH CATHETER HAS AN INFLATABLE ELASTIC BALLOON LAYER SURROUNDING THE TUBE WITH OPPOSITE ENDS OF THE BALLOON LAYER BONDED TO THE TUBE WALL''S OUTER SURFACE ON OPPOSITE SIDES OF THE INFLATION OPENING, THE IMPROVEMENT COMPRISING A NONTOXIC COLORED DYE INTEGRALLY ENCASED BETWEEN THE BALLOON AND TUBE PRIOR TO INFLATION OF THE BALLOON, SAID COLORED DYE BEING DISPERSIBLE THROUGHOUT AN INFLATION MEDIA USED TO INFLATE THE BALLOON, WHEREBY THE COLORED DYE DRAINING OUT OF THE CATHETER GIVES A VISUAL INDICATION OF BALLOON LEAKAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |