US3850720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding a balloon sleeve to a catheter lumen tube
Assignee: GD Searle and Co Ltd
•
Filing: 1973-01-26
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Granted: 1974-11-26
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Expires: 1993-01-26
Abstract
Abstract Improved Foley type catheters are produced from a plasticized polyvinyl chloride lumen tube and a latex rubber inflation sleeve by coating the interior of the inflation sleeve with powdered polyvinyl chloride before its placement on the lumen tube, halogenating the end margins of the inflation balloon to provide adhesion between the balloon and the lumen tube and maintaining contact pressure on the end margins of the balloon sleeves during the adhesion step by means of elastic bands.
Inventors
- 👤 M Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1034; H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/068
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A METHOD OF PRODUCING A CATHETER IN WHICH END MARGINS OF A BALLOON SLEEVE ARE ADHENSIVELY SECURED TO A LUMEN TUBE OF A MATERIAL HAVING A HIGHER POLAR PROPERTIES THAN THAT OF THE SLEEVE, WHICH METHOD CONSIST OF THE STEPS OF DUSTING AT LEAST THE INNER SURFACE OF SAID SLEEVE WITH A SOLUBLE PLASTIC POWDER BEFORE ASSEMBLY OF THE TUBE AND THE SLEEVE; LOCATING THE SLEEVE IN POSITION AROUND THE TUBE; CONTACTING SAID PLASTIC POWDER WITH AN ORGANIC CLEARING FLUID TO DISSOLVE THE POWDER AT LEAST FROM THE END MARGINS OF THE SLEEVE; EXPOSING AT LEAST THE END MARGINS OF SAID SLEEVE TO A HALOGEN MEDIUM, ADHENSIVELY SECURING SAID END MARGINS OF THE SLEEVE TO THE TUBE; AND MAINTAINING CONTACT PRESSURE AT THE ADHENSIVELY SECURED END MARGINS BY MEANS OF AT LEAST ONE ELASTIC BAND HAVING AN INTERIOR DIAMETER IN ITS UNSTRESSED CONFIGURATION WHICH IS SMALLER THAN THE OUTSIDE DIAMETER OF THE LUMEN TUBE.
Claim 2
Independent Claim
154 words
A METHOD OF PRODUCING A CATHETER IN WHICH END MARGINS OF A BALLOON SLEEVE ARE ADHENSIVELY SECURED TO A LUMEN TUBE OF A MATERIAL HAVING A HIGHER POLAR PROPERTIES THAN THAT OF THE SLEEVE, WHICH METHOD CONSIST OF THE STEPS OF DUSTING AT LEAST THE INNER SURFACE OF SAID SLEEVE WITH A SOLUBLE PLASTIC POWDER BEFORE ASSEMBLY OF THE TUBE AND THE SLEEVE; LOCATING THE SLEEVE IN POSITION AROUND THE TUBE; CONTACTING SAID PLASTIC POWDER WITH AN ORGANIC CLEARING FLUID TO DISSOLVE THE POWDER AT LEAST FROM THE END MARGINS OF THE SLEEVE; EXPOSING AT LEAST THE END MARGINS OF SAID SLEEVE TO A HALOGEN MEDIUM, ADHENSIVELY SECURING SAID END MARGINS OF THE SLEEVE TO THE TUBE; AND MAINTAINING CONTACT PRESSURE AT THE ADHENSIVELY SECURED END MARGINS BY MEANS OF AT LEAST ONE ELASTIC BAND HAVING AN INTERIOR DIAMETER IN ITS UNSTRESSED CONFIGURATION WHICH IS SMALLER THAN THE OUTSIDE DIAMETER OF THE LUMEN TUBE.
Claim 3
Dependent Claim
41 words
The method as in claim 1, wherein the organic cleaning fluid is cyclohexanone, the halogen medium is an aqueous chlorine solution, the balloon sleeve is of pre-vulcanized natural latex rubber and the lumen tube and plastic powder are of polyvinyl chloride.
Claim 4
Dependent Claim
65 words
The method as in claim 2, wherein the end margins of the sleeve, prior to being adhered to the tube, are turned back after location of the sleeve on the tube, and at least the thus exposed inner surfaces of the sleeve are subjected to a halogenating medium, whereafter the exposed inner surfaces of the sleeve are adhered to the tube by an adhesive medium.
Claim 5
Dependent Claim
22 words
The method as in claim 3, wherein the end margins are internally thickened and externally tapered to the ends of the sleeve.
Claim 6
Dependent Claim
63 words
The method as in claim 4, wherein the elastic bands are assembled to extend over the end margins of the sleeve and over the adjacent portions of the lumen tube, whereby the end edges of the sleeve are made to merge with the exterior surface of the lumen tube, thereby minimizing projection of the sleeve edge above the outside surface of the tube.
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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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |