US3865666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a catheter
Assignee: CRBARD Inc A CORP OF NJ
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Filing: 1973-05-08
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Granted: 1975-02-11
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Expires: 1993-05-08
Abstract
Abstract Disclosed is a retention catheter of the Foley type and a method of manufacturing such a catheter. The method includes the steps of molding the balloon onto the shaft, molding the tip onto the shaft and then bonding the distal end of the balloon to the catheter.
Inventors
- 👤 Suryakant R Shoney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:40
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0009; A61M25/001; A61M25/10; A61M25/1027; A61M25/1029; A61M25/1034; B; B29; B29C; B29C45/00; B29C45/14; B29C45/14336; B29K; B29K2083/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
123 words
The process of manufacturing a retention catheter which comprises: a. providing an elastomeric catheter shaft having a drainage lumen extending longitudinally thereof and an inflation lumen extending longitudinally for at least a major portion thereof and communicating with the exterior of said shaft through an aperture adjacent the distal end of said shaft; b. molding a balloon sleeve and simultaneously bonding said balloon sleeve to said shaft adjacent the distal end thereof and on one side of said aperture; c. insert molding a tip to the distal end of said shaft; d. providing at least one drainage eye communicating with said drainage lumen; and; e. bonding the exposed end of said balloon sleeve to said catheter on the other side of said aperture.
Claim 2
Dependent Claim
123 words
The process of manufacturing a retention catheter which comprises: a. providing an elastomeric catheter shaft having a drainage lumen extending longitudinally thereof and an inflation lumen extending longitudinally for at least a major portion thereof and communicating with the exterior of said shaft through an aperture adjacent the distal end of said shaft; b. molding a balloon sleeve and simultaneously bonding said balloon sleeve to said shaft adjacent the distal end thereof and on one side of said aperture; c. insert molding a tip to the distal end of said shaft; d. providing at least one drainage eye communicating with said drainage lumen; and; e. bonding the exposed end of said balloon sleeve to said catheter on the other side of said aperture.
Claim 3
Dependent Claim
35 words
The process of claim 1 wherein said balloon sleeve is inserted molded to said shaft on the proximal side of said aperture and the distal end of said balloon sleeve is bonded to said tip.
Claim 4
Dependent Claim
24 words
The process of claim 2 wherein said at least one drainage eye is formed when said hollow tip is insert molded onto said shaft.
Claim 5
Dependent Claim
30 words
The process of claim 3 which further includes the step of molding a peripheral groove into the exterior of said tip when said tip is insert molded to said shaft.
Claim 6
Dependent Claim
17 words
The process of claim 4 wherein said shaft, said tip and said balloon sleeve are silicone rubber.
Claim 7
Dependent Claim
44 words
The process of claim 2 wherein said shaft, said balloon sleeve and said tip are initially only partially cured and said process further includes the step of post curing said shaft, balloon sleeve and tip after said balloon sleeve is bonded to said catheter.
Claim 8
Dependent Claim
35 words
The process of claim 1 wherein said balloon sleeve is insert molded to said shaft on the proximal side of said aperture and then bonded to said shaft on the distal side of said aperture.
Claim 9
Dependent Claim
39 words
The process of claim 7 which further includes the step of providing a peripheral groove in the exterior of said shaft on the distal side of said aperture and bonding said balloon sleeve to said shaft within said groove.
Claim 10
Dependent Claim
14 words
The process of claim 8 wherein said shaft is an extruded silicone rubber shaft.
Claim 11
Dependent Claim
42 words
The process of claim 9 wherein said shaft, said balloon sleeve and said tip are all initially only partially cured silicone rubber and said processs further includes the step of post curing said catheter after bonding said balloon sleeve to said shaft.
Claim 12
Dependent Claim
35 words
The process of claim 1 wherein said balloon sleeve is insert molded to said shaft on the distal side of said aperature and is bonded to said shaft on the proximal side of said aperture.
Claim 13
Dependent Claim
14 words
The process of claim 11 wherein said shaft is an extruded silicone rubber shaft.
Claim 14
Dependent Claim
42 words
The process of claim 12 wherein said shaft, said balloon sleeve and said tip are all initially only partially cured silicone rubber and said process further includes the step of post curing said catheter after bonding said balloon sleeve to said shaft.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |