US4367740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination catheter cystometer system and gastric feeding device
Assignee: Individual
•
Filing: 1980-12-10
•
Granted: 1983-01-11
•
Expires: 2000-12-10
Abstract
Abstract A catheter related cystometer system and gastric feeding device is usable as a urinary catheter providing a sealed drainage tube with a normally closed access opening for injecting an irrigating liquid into the drainage tube and the bladder in which the catheter is positioned. An adaptation of the device enables it to be used as a cystometry system to measure the pressure volume relationship in the bladder of a patient from a source of fluid and further adaptation enables the device to be used as a gastric feeding device by being placed in a desired location in a patient and communication established with an IV bottle or the like.
Inventors
- 👤 Constant J. Evanoski, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:30
CPC Classifications
A; A61; A61J; A61J15/00; A61B; A61B5/00; A61B5/20; A61B5/202; A61B5/205; A61J15/0026; A61J15/003; A61J15/0046; A61J15/0049; A61M; A61M25/00; A61M25/10; A61M25/1018; A61M25/10184; A61J15/0073; A61J15/0096; A61M39/00; A61M39/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
206 words
An improvement in a catheter adapted for insertion into a body passage of restricted size and also usable in a cystometer system and in a gastric feeding device and comprising an elongated flexible shaft, a drainage lumen defined by said flexible shaft and extending from a first opening adjacent the distal end of the flexible shaft to the proximal end thereof, an inflatable balloon about said flexible shaft inwardly from the distal end thereof, a pressure lumen defined by said flexible shaft and extending from said balloon to the proximal end of said flexible shaft, an irrigating lumen defined by said flexible shaft communicating with said drainage lumen in the distal end of said flexible shaft and extending to the proximal end of said flexible shaft, the improvement comprising means for introducing sterile fluid into said drainage lumen and thereby into said body passage while said catheter is inserted in said body passage, said means including a second opening in said drainage lumen adjacent said proximal end of said flexible shaft, a passageway in said proximal end of said flexible shaft communicating with said second opening and with the exterior of said proximal end of said flexible shaft and removable means normally closing said second opening.
Claim 2
Dependent Claim
206 words
An improvement in a catheter adapted for insertion into a body passage of restricted size and also usable in a cystometer system and in a gastric feeding device and comprising an elongated flexible shaft, a drainage lumen defined by said flexible shaft and extending from a first opening adjacent the distal end of the flexible shaft to the proximal end thereof, an inflatable balloon about said flexible shaft inwardly from the distal end thereof, a pressure lumen defined by said flexible shaft and extending from said balloon to the proximal end of said flexible shaft, an irrigating lumen defined by said flexible shaft communicating with said drainage lumen in the distal end of said flexible shaft and extending to the proximal end of said flexible shaft, the improvement comprising means for introducing sterile fluid into said drainage lumen and thereby into said body passage while said catheter is inserted in said body passage, said means including a second opening in said drainage lumen adjacent said proximal end of said flexible shaft, a passageway in said proximal end of said flexible shaft communicating with said second opening and with the exterior of said proximal end of said flexible shaft and removable means normally closing said second opening.
Claim 3
Dependent Claim
61 words
The improvement in a catheter set forth in claim 1 and wherein said proximal end of said flexible shaft is cross sectionally circular and wherein said drainage lumen communicates with a tubular extension centered in said cross sectionally circular proximal end and wherein said second opening and said passageway communicate with a fourth opening in said cross sectionally circular proximal end.
Claim 4
Dependent Claim
32 words
The improvement in a catheter set forth in claim 1 and wherein said means normally closing said second opening consists of a plug of self-sealing material removably positioned in said second opening.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |