Patent US5201706A successfully refreshed from Google Patents.
US5201706A
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Catheter with a balloon reinforced with composite yarn
Assignee: Toray Industries Inc
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Filing: 1991-03-11
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Granted: 1993-04-13
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Expires: 2011-03-11
Abstract
Abstract A catheter with a balloon characterized by a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn with a larger free length of the non-elastic yarn than that of said elastic yarn. When the catheter is inserted into a blood vessel or taken out on a surgical operation, the balloon is deflated to a small diameter without producing any wrinkle and is stretched by inflation to the same size and the same shape at any time. Therefore, reliability of the balloon catheter in surgical operation is improved and the cut wound in the surgical operation is smaller. Treatment and management after the surgical operation are simple and the time required for recovery is extremely short.
Inventors
- 👤 Noriyasu Noguchi
- 👤 Yoshiharu Yamazaki
- 👤 Mitsuyuki Hagio
- 👤 Yasuhiko Futami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:25
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61M25/00; A61M25/10; A61M25/1027; A61M25/1029; A61M25/1034; A61M2025/1043; A61M2025/1084
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
53 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein the ratio of free length of said elastic yarn to said non-elastic yarn is in the range of 0.15-0.5.
Claim 2
Dependent Claim
53 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein the ratio of free length of said elastic yarn to said non-elastic yarn is in the range of 0.15-0.5.
Claim 3
Dependent Claim
15 words
A catheter as recited in claim 1, wherein said fabric consists of a knitted fabric.
Claim 4
Dependent Claim
32 words
A catheter as recited in claim 1, wherein said balloon consists of a three-layered structure consisting of an elastic film, a cylindrical body consisting of a composite yarn, and an elastic film.
Claim 5
Dependent Claim
20 words
A catheter as recited in claim 3, wherein said cylindrical body of said composite yarn is adhered with elastic film.
Claim 6
Dependent Claim
53 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein the ratio of free length of said elastic yarn to said non-elastic yarn is in the range of 0.2-0.35.
Claim 7
Dependent Claim
53 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein the ratio of free length of said elastic yarn to said non-elastic yarn is in the range of 0.2-0.35.
Claim 8
Dependent Claim
56 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein said composite yarn consists of a core-sheath yarn, wherein said elastic yarn is the core and said non-elastic yarn is the sheath.
Claim 9
Dependent Claim
56 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein said composite yarn consists of a core-sheath yarn, wherein said elastic yarn is the core and said non-elastic yarn is the sheath.
Claim 10
Dependent Claim
23 words
A catheter as recited in claim 6, wherein said core-sheath yarn consists of a synthetic fiber-twisted yarn spirally wound on a urethane yarn.
Claim 11
Dependent Claim
43 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein said non-elastic yarn consists of a false-twisted textured yarn.
Claim 12
Dependent Claim
43 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, wherein said non-elastic yarn consists of a false-twisted textured yarn.
Claim 13
Dependent Claim
81 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, further comprising double tubes including an inner tube and an outer tube wherein one end of said balloon is fixed on said inner tube of said double tubes concentrically slidably relative to each other and another end thereof is fixed on said outer tube of said double tubes.
Claim 14
Dependent Claim
81 words
A catheter comprising a balloon reinforced with a composite yarn consisting of an elastic yarn and a non-elastic yarn, said non-elastic yarn having a larger free length than that of said elastic yarn, further comprising double tubes including an inner tube and an outer tube wherein one end of said balloon is fixed on said inner tube of said double tubes concentrically slidably relative to each other and another end thereof is fixed on said outer tube of said double tubes.
Claim 15
Dependent Claim
28 words
A catheter as recited in claim 9, having a shaft insertable in said inner tube and a stopper for said shaft on the apex of said inner 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) | 1996-04-12 | 1996-10-12 | 1997-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-12 | 2000-10-12 | 2001-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-12 | 2004-10-12 | 2005-04-13 | $7700.00 | Window Closed / Lapsed |