US5752934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter device
Assignee: W.L. Gore and Associates Inc
•
Filing: 1995-09-18
•
Granted: 1998-05-19
•
Expires: 2015-09-18
Abstract
Abstract Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricous and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.
Inventors
- 👤 Carey V. Campbell
- 👤 Alvaro J. Laguna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1029; A61L; A61L29/00; A61L29/08; A61L29/085; A61L29/12; A61L29/14; A61L29/146; C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L75/00; C08L75/04; C08L83/00; C08L83/04; A61M2025/1043; A61M2025/1075; A61M2025/1081
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
34 words
A balloon catheter having a balloon comprised of porous polytetrafluoroethylene and an elastomeric material, said balloon having a longitudinal axis, said porous polytetrafluoroethylene comprising a film oriented helically with respect to said longitudinal axis.
Claim 2
Dependent Claim
34 words
A balloon catheter having a balloon comprised of porous polytetrafluoroethylene and an elastomeric material, said balloon having a longitudinal axis, said porous polytetrafluoroethylene comprising a film oriented helically with respect to said longitudinal axis.
Claim 3
Dependent Claim
28 words
A balloon catheter according to claim 1 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction efficiency ratio of greater than about 0.3.
Claim 4
Dependent Claim
28 words
A balloon catheter according to claim 2 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction efficiency ratio of greater than about 0.7.
Claim 5
Dependent Claim
28 words
A balloon catheter according to claim 3 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction efficiency ratio of greater than about 0.9.
Claim 6
Dependent Claim
25 words
A balloon catheter according to claim 1 wherein the elastomeric material is selected from the group consisting of fluoroelastomers, silicone rubbers, latex rubbers and polyurethanes.
Claim 7
Dependent Claim
27 words
A balloon catheter according to claim 1 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction ratio of greater than about 0.5.
Claim 8
Dependent Claim
27 words
A balloon catheter according to claim 6 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction ratio of greater than about 0.6.
Claim 9
Dependent Claim
17 words
A balloon catheter according to claim 1 wherein the balloon resists appreciable distension beyond a maximum diameter.
Claim 10
Dependent Claim
20 words
A balloon catheter according to claim 8 wherein the balloon has a burst pressure of at least about 70 psi.
Claim 11
Dependent Claim
20 words
A balloon catheter according to claim 9 wherein the balloon has a burst pressure of at least about 100 psi.
Claim 12
Dependent Claim
19 words
A balloon catheter according to claim 1 wherein the polytetrafluoroethylene is a cover that fits over the elastomeric material.
Claim 13
Dependent Claim
20 words
A balloon catheter according to claim 1 wherein the porous polytetrafluoroethylene has pores that are substantially filled with elastomeric material.
Claim 14
Dependent Claim
13 words
A balloon catheter having a balloon comprised of polytetrafluoroethylene and an inelastic material.
Claim 15
Dependent Claim
13 words
A balloon catheter having a balloon comprised of polytetrafluoroethylene and an inelastic material.
Claim 16
Dependent Claim
14 words
A balloon catheter according to claim 13 wherein the inelastic material is a fluoropolymer.
Claim 17
Dependent Claim
27 words
A balloon catheter according to claim 13 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction ratio of greater than about 0.4.
Claim 18
Dependent Claim
27 words
A balloon catheter according to claim 15 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction ratio of greater than about 0.6.
Claim 19
Dependent Claim
17 words
A balloon catheter according to claim 13 wherein the balloon resists appreciable distension beyond a maximum diameter.
Claim 20
Dependent Claim
19 words
A balloon catheter according to claim 13 wherein the polytetrafluoroethylene is a cover that fits over the inelastic material.
Claim 21
Dependent Claim
20 words
A balloon catheter according to claim 13 wherein the porous polytetrafluoroethylene has pores that are substantially filled with elastomeric material.
Claim 22
Dependent Claim
28 words
A balloon catheter according to claim 13 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction efficiency ratio of greater than about 0.3.
Claim 23
Dependent Claim
28 words
A balloon catheter according to claim 20 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction efficiency ratio of greater than about 0.5.
Claim 24
Dependent Claim
28 words
A balloon catheter according to claim 21 wherein said balloon following inflation to 5 atmospheres and subsequent deflation has a compaction efficiency ratio of greater than about 0.7.
Claim 25
Dependent Claim
37 words
A balloon catheter having a balloon provided with a balloon cover, said cover comprised of polytetrafluoroethylene and an elastomeric material and having a generally tubular form selected from the group consisting of continuous tubes, meshes or braids.
Claim 26
Dependent Claim
37 words
A balloon catheter having a balloon provided with a balloon cover, said cover comprised of polytetrafluoroethylene and an elastomeric material and having a generally tubular form selected from the group consisting of continuous tubes, meshes or braids.
Claim 27
Dependent Claim
32 words
A balloon catheter having a balloon provided with a balloon cover, said cover comprised of polytetrafluoroethylene having a generally tubular form selected from the group consisting of continuous tubes, meshes or braids.
Claim 28
Dependent Claim
32 words
A balloon catheter having a balloon provided with a balloon cover, said cover comprised of polytetrafluoroethylene having a generally tubular form selected from the group consisting of continuous tubes, meshes or braids.
Claim 29
Dependent Claim
72 words
A catheter balloon comprising expanded polytetrafluoroethylene and elastomer; the expanded polytetrafluoroethylene and elastomer connected to an inflation means to form the balloon; the balloon having an initial deflated diameter and an inflated maximum diameter; wherein the expanded polytetrafluoroethylene and the elastomer inflate together to reach the maximum diameter and the expanded polytetrafluoroethylene and the elastomer contract together when the balloon is deflated wherein the balloon recovers to substantially the initial deflated diameter.
Claim 30
Dependent Claim
72 words
A catheter balloon comprising expanded polytetrafluoroethylene and elastomer; the expanded polytetrafluoroethylene and elastomer connected to an inflation means to form the balloon; the balloon having an initial deflated diameter and an inflated maximum diameter; wherein the expanded polytetrafluoroethylene and the elastomer inflate together to reach the maximum diameter and the expanded polytetrafluoroethylene and the elastomer contract together when the balloon is deflated wherein the balloon recovers to substantially the initial deflated diameter.
Claim 31
Dependent Claim
16 words
A catheter balloon according to claim 25 wherein the expanded polytetrafluoroethylene and elastomer are laminated together.
Claim 32
Dependent Claim
24 words
A catheter balloon according to claim 25 wherein the elastomer is impregnated into at least a portion of void spaces in the expanded polytetrafluoroethylene.
Claim 33
Dependent Claim
18 words
A catheter balloon according to claim 27 wherein the elastomer substantially fills void spaces in the expanded polytetrafluoroethylene.
Claim 34
Dependent Claim
35 words
A catheter balloon according to claim 25 wherein the expanded polytetrafluoroethylene and elastomer are laminated together and wherein the elastomer is also impregnated into at least a portion of void spaces in the expanded polytetrafluoroethylene.
Claim 35
Dependent Claim
73 words
A catheter balloon comprising polytetrafluoroethylene and an elastomer; inflation means connected to the balloon; the polytetrafluoroethylene, elastomer, and inflation means combining to form the balloon which is fluid-tight with a high burst strength of at least 8 atmospheres; wherein the balloon has an initial deflated diameter and a maximum inflated diameter; and wherein the balloon is capable of being inflated to its maximum diameter and then deflated to substantially its initial deflated diameter.
Claim 36
Dependent Claim
73 words
A catheter balloon comprising polytetrafluoroethylene and an elastomer; inflation means connected to the balloon; the polytetrafluoroethylene, elastomer, and inflation means combining to form the balloon which is fluid-tight with a high burst strength of at least 8 atmospheres; wherein the balloon has an initial deflated diameter and a maximum inflated diameter; and wherein the balloon is capable of being inflated to its maximum diameter and then deflated to substantially its initial deflated diameter.
Claim 37
Dependent Claim
15 words
A catheter balloon according to claim 30 wherein the polytetrafluoroethylene and elastomer are laminated together.
Claim 38
Dependent Claim
34 words
A catheter balloon according to claim 30 wherein the polytetrafluoroethylene is porous and contains void spaces and wherein the elastomer is impregnated into at least a portion of the void spaces in the polytetrafluoroethylene.
Claim 39
Dependent Claim
17 words
A catheter balloon according to claim 32 wherein the elastomer substantially fills void spaces in the polytetrafluoroethylene.
Claim 40
Dependent Claim
34 words
A catheter balloon according to claim 30 wherein the polytetrafluoroethylene and elastomer are laminated together and wherein the elastomer is also impregnated into at least a portion of void spaces contained in the polytetrafluoroethylene.
Claim 41
Dependent Claim
44 words
A catheter balloon comprising polytetrafluoroethylene and an elastomeric material; wherein the balloon has an Initial deflated diameter and a maximum inflated diameter; and wherein the balloon is capable of being inflated to its maximum diameter and then deflated to substantially its initial deflated diameter.
Claim 42
Dependent Claim
44 words
A catheter balloon comprising polytetrafluoroethylene and an elastomeric material; wherein the balloon has an Initial deflated diameter and a maximum inflated diameter; and wherein the balloon is capable of being inflated to its maximum diameter and then deflated to substantially its initial deflated diameter.
Claim 43
Dependent Claim
20 words
A catheter balloon comprising polytetrafluoroethylene and an elastomeric material; wherein said polytetrafluoroethylene further comprises a helical wrapping of polytetrafluoroethylene film.
Claim 44
Dependent Claim
20 words
A catheter balloon comprising polytetrafluoroethylene and an elastomeric material; wherein said polytetrafluoroethylene further comprises a helical wrapping of polytetrafluoroethylene film.
Claim 45
Dependent Claim
29 words
A catheter balloon comprising porous material and elastomeric material; wherein the porous material include void spaces, said void spaces being sealed with elastomeric material to render the balloon liquid-tight.
Claim 46
Dependent Claim
29 words
A catheter balloon comprising porous material and elastomeric material; wherein the porous material include void spaces, said void spaces being sealed with elastomeric material to render the balloon liquid-tight.
Claim 47
Dependent Claim
12 words
A catheter balloon comprising polytetrafluoroethylene and elastomeric material; said balloon being liquid-tight.
Claim 48
Dependent Claim
12 words
A catheter balloon comprising polytetrafluoroethylene and elastomeric material; said balloon being liquid-tight.
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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) | 2001-05-18 | 2001-11-17 | 2002-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-18 | 2005-11-17 | 2006-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-18 | 2009-11-17 | 2010-05-19 | $7700.00 | Window Closed / Lapsed |