US5503631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricious catheter balloon for vasodilation
Assignee: Terumo Corp
•
Filing: 1993-10-07
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Granted: 1996-04-02
•
Expires: 2013-10-07
Abstract
Abstract A vasodilating catheter balloon characterized by the fact that the balloon portion thereof is provided with what serves concurrently as a lubricating portion and a non-lubricating portion.
Inventors
- 👤 Makoto Onishi
- 👤 Kenichi Shimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/104; A61M2025/0004; A61M2025/1043; A61M2025/1088
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A vasodilating catheter balloon which comprises an inflatable balloon body which comprises tapered portions at both ends and a cylindrical portion between said tapered portions for dilating the interior of a blood vessel, said tapered portions comprise part of said inflatable balloon and are constituted of the same materials as the inflatable balloon body, wherein said balloon body has a lubricating portion formed on any one of said tapered portions and a non-lubricating portion on said cylindrical portion.
Claim 2
Dependent Claim
78 words
A vasodilating catheter balloon which comprises an inflatable balloon body which comprises tapered portions at both ends and a cylindrical portion between said tapered portions for dilating the interior of a blood vessel, said tapered portions comprise part of said inflatable balloon and are constituted of the same materials as the inflatable balloon body, wherein said balloon body has a lubricating portion formed on any one of said tapered portions and a non-lubricating portion on said cylindrical portion.
Claim 3
Dependent Claim
32 words
A balloon according to claim 1, wherein said balloon body has a leading end and said lubricating portion is formed on a tapered portion in the leading end of said balloon body.
Claim 4
Dependent Claim
35 words
The vasoldilating catheter balloon of claim 1 wherein the balloon when inflated comprises an inner tube through the balloon body and an outer tube connected with the interior at one end of the balloon body.
Claim 5
Dependent Claim
33 words
The vasodilating catheter balloon of claim 1 wherein the lubrication portion is formed at a position of the catheter which is subject to resistance open insertion of the catheter into a blood vessel.
Claim 6
Dependent Claim
25 words
The vasodilating catheter of claim 1 wherein the lubrication portion is formed of a polymeric substance capable of being dissolved with water to be absorbed.
Claim 7
Dependent Claim
35 words
A balloon according to claim 5, wherein said polymeric substance is made of at least one member selected from the group consisting of maleic anhydride type polymeric substance, acryl amide type polymeric substance and polysaccharides.
Claim 8
Dependent Claim
25 words
A balloon according to claim 6, wherein said acryl amide type polymeric substance is a polymer having N,N-dimethyl acryl amide as a main component thereof.
Claim 9
Dependent Claim
19 words
A balloon according to claim 6, wherein said maleic anhydride type polymeric substance is methyl vinyl ether-maleic anhydride copolymer.
Claim 10
Dependent Claim
25 words
The vasodilating catheter of claim 1, wherein the lubricating portion is formed of a polymeric substance capable of being swelled with water to be absorbed.
References Cited (Backward Citations)
US3962519A
Cited
US3726281A
Cited
US4248685A
Cited
US4100309A
Cited
US4373009A
Cited
US4876126A
Cited
EP0311427A1
Cited
US4998923A
Cited
US5091205A
Cited
US5270086A
Cited
US5135516A
Cited
US5108416A
Cited
US5423754A
Cited
US5397305A
Cited
US5304121A
Cited
US5278200A
Cited
US5338298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-02 | 1999-10-02 | 2000-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-02 | 2003-10-02 | 2004-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-02 | 2007-10-02 | 2008-04-02 | $7700.00 | Window Closed / Lapsed |