US5264260A
Expired / Lapsed
US
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Dilatation balloon fabricated from low molecular weight polymers
Assignee: Vention Medical Advanced Components Inc
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Filing: 1991-06-20
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Granted: 1993-11-23
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Expires: 2011-06-20
Abstract
Abstract A low molecular weight, flexible, biaxially oriented, dilatation catheter balloon comprising oriented polyethylene terephthalate, and having a calculated radial tensile strength of greater than about 25,000 psi.
Inventors
- 👤 Mark A. Saab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:56
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61L; A61L29/00; A61L29/04; A61L29/06; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1345; Y10T428/1352; Y10T428/1397; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
35 words
A thin-walled, flexible, dilation catheter balloon having an intrinsic viscosity less than or equal to 0.6 dl/gram and a calculated radial tensile strength greater than about 25,000 psi, and consisting essentially of oriented polyethylene terephthalate.
Claim 2
Dependent Claim
35 words
A thin-walled, flexible, dilation catheter balloon having an intrinsic viscosity less than or equal to 0.6 dl/gram and a calculated radial tensile strength greater than about 25,000 psi, and consisting essentially of oriented polyethylene terephthalate.
Claim 3
Dependent Claim
15 words
A balloon as set forth in claim 1, wherein said polyethylene terephthalate is a copolymer.
Claim 4
Dependent Claim
15 words
A balloon as set forth in claim 1, wherein said polyethylene terephthalate is biaxially oriented.
Claim 5
Dependent Claim
35 words
A flexible, oriented, dilation catheter balloon having an intrinsic viscosity of not more than about 0.6 dl/gram and a calculated radial tensile strength greater than about 25,000 psi, and consisting essentially of oriented polyethylene terephthalate.
Claim 6
Dependent Claim
35 words
A flexible, oriented, dilation catheter balloon having an intrinsic viscosity of not more than about 0.6 dl/gram and a calculated radial tensile strength greater than about 25,000 psi, and consisting essentially of oriented polyethylene terephthalate.
Claim 7
Dependent Claim
15 words
A balloon as set forth in claim 4, wherein said polyethylene terephthalate is a copolymer.
Claim 8
Dependent Claim
15 words
A balloon as set forth in claim 4, wherein said polyethylene terephthalate is biaxially oriented.
Claim 9
Dependent Claim
20 words
A balloon as set forth in claim 4, wherein the calculated radial tensile strength is greater than about 35,000 psi.
Claim 10
Dependent Claim
34 words
A flexible, oriented, dilatation catheter balloon having an intrinsic viscosity of less than about 0.6 dl/gram and a calculated radial tensile strength greater than about 25,000 psi, and consisting essentially of oriented polyethylene terephthalate.
Claim 11
Dependent Claim
34 words
A flexible, oriented, dilatation catheter balloon having an intrinsic viscosity of less than about 0.6 dl/gram and a calculated radial tensile strength greater than about 25,000 psi, and consisting essentially of oriented polyethylene terephthalate.
Claim 12
Dependent Claim
15 words
A balloon as set forth in claim 8, wherein said polyethylene terephthalate is a copolymer.
Claim 13
Dependent Claim
15 words
A balloon as set forth in claim 8, wherein said polyethylene terephthalate is biaxially oriented.
Claim 14
Dependent Claim
20 words
A balloon as set forth in claim 8, wherein the calculated radial tensile strength is greater than about 35,000 psi.
Claim 15
Dependent Claim
54 words
Medical apparatus for use as or in combination with a balloon dilatation catheter, said apparatus comprising a very thin-walled, flexible, high strength balloon having an intrinsic viscosity equal to or less than about 0.6 dl/gram and a calculated radial tensile strength greater than or equal to 25,000 psi, and consisting essentially oriented polyethylene terephthalate.
Claim 16
Dependent Claim
54 words
Medical apparatus for use as or in combination with a balloon dilatation catheter, said apparatus comprising a very thin-walled, flexible, high strength balloon having an intrinsic viscosity equal to or less than about 0.6 dl/gram and a calculated radial tensile strength greater than or equal to 25,000 psi, and consisting essentially oriented polyethylene terephthalate.
Claim 17
Dependent Claim
13 words
Medical apparatus according to claim 12 wherein said polyethylene terephthalate is biaxially oriented.
Claim 18
Dependent Claim
21 words
Medical apparatus according to claim 12 wherein said balloon has a wall thickness equal to or less than about 0.0003 inches.
Claim 19
Dependent Claim
23 words
Medical apparatus according to claim 12 further wherein said balloon has a radial tensile strength equal to or greater than about 35,000 psi.
Claim 20
Dependent Claim
13 words
Medical apparatus according to claim 12 wherein said polyethylene terephthalate is a copolymer.
Claim 21
Dependent Claim
72 words
Medical apparatus for use as or in combination with a balloon dilatation catheter made by the method of axially drawing and radially expanding a tubular section of low molecular weight polyethylene terephthalate so as to expand and orient the polymer in two directions to form a balloon having an intrinsic viscosity equal to or less than about 0.6 dl/gram and a calculated radial tensile strength greater than or equal to 25,000 psi.
Claim 22
Dependent Claim
72 words
Medical apparatus for use as or in combination with a balloon dilatation catheter made by the method of axially drawing and radially expanding a tubular section of low molecular weight polyethylene terephthalate so as to expand and orient the polymer in two directions to form a balloon having an intrinsic viscosity equal to or less than about 0.6 dl/gram and a calculated radial tensile strength greater than or equal to 25,000 psi.
Claim 23
Dependent Claim
25 words
Medical apparatus according to claim 17 wherein said tubular section consists essentially of polyethylene terephthalate having an intrinsic viscosity of about 0.6 dl/gram or below.
Claim 24
Dependent Claim
35 words
Medical apparatus according to claim 17 wherein said tubular section is stretched axially and, before, during or after the axial stretching, is expanded radially by introduction of a pressurized fluid internally into said tubular section.
Claim 25
Dependent Claim
21 words
Medical apparatus according to claim 17 wherein said balloon has a wall thickness equal to or less than about 0.0003 inches.
Claim 26
Dependent Claim
22 words
Medical apparatus according to claim 17 wherein said balloon has a radial tensile strength equal to or greater than about 35,000 psi.
Claim 27
Dependent Claim
13 words
Medical apparatus according to claim 17 wherein said polyethylene terephthalate is a copolymer.
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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) | 1996-11-22 | 1997-05-24 | 1997-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-22 | 2001-05-24 | 2001-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-22 | 2005-05-24 | 2005-11-23 | $7700.00 | Window Closed / Lapsed |