Patent US6132824A successfully refreshed from Google Patents.
US6132824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer catheter balloon
Assignee: Boston Scientific Scimed Inc
•
Filing: 1997-08-06
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Granted: 2000-10-17
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Expires: 2017-08-06
Abstract
Abstract A method of producing laminated inflatable, substantially inextensible expander members having composite properties enhancing their use on intravascular catheters, such as angioplasty catheters is described. Diverse polymeric compounds of differing properties are coextruded to create a multilayer parison. The parison is subsequently drawn and expanded in a blow molding operation to yield an expander member exhibiting enhanced properties including lubricity, burst-strength, limited radial expansion, bondability, and rupture characteristics.
Inventors
- 👤 Robert N. Hamlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61L; A61L29/00; A61L29/04; A61L29/041; A61L29/06; A61L29/12; A61L29/126; A61M25/0009; A61M25/10; A61M25/1027; A61M25/1029; B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; B29C49/22; A61M2025/1031; A61M2025/1043; A61M2025/1075; A61M25/1034; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/08; B29K2023/083; B29K2067/00; B29L; B29L2031/00; B29L2031/753; B29L2031/7542; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/1352; Y10T428/139; Y10T428/1393; Y10T428/1397
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
59 words
An expandable catheter balloon comprising: (a) a first layer comprising a first biaxially oriented polymer; and (b) a second layer adhered to the first layer and comprising a second biaxially oriented polymer other than the first biaxially oriented polymer; the balloon being sized and configured for coronary transluminal application and having a burst pressure in excess of 7 atmospheres.
Claim 2
Dependent Claim
59 words
An expandable catheter balloon comprising: (a) a first layer comprising a first biaxially oriented polymer; and (b) a second layer adhered to the first layer and comprising a second biaxially oriented polymer other than the first biaxially oriented polymer; the balloon being sized and configured for coronary transluminal application and having a burst pressure in excess of 7 atmospheres.
Claim 3
Dependent Claim
15 words
The balloon of claim 1 wherein the second layer consists essentially of biaxially oriented polyolefin.
Claim 4
Dependent Claim
15 words
The balloon of claim 2 wherein the second layer consists essentially of biaxially oriented polyethylene.
Claim 5
Dependent Claim
16 words
The balloon of claim 1 wherein the first layer is an outermost layer of the balloon.
Claim 6
Dependent Claim
16 words
The balloon of claim 1 wherein the second layer is an innermost layer of the balloon.
Claim 7
Dependent Claim
17 words
The balloon of claim 1 further comprising a lubricious coating on an outermost layer of the balloon.
Claim 8
Dependent Claim
20 words
The balloon of claim 1 wherein the first biaxially oriented polymer is more crystalline than the second biaxially oriented polymer.
Claim 9
Dependent Claim
15 words
The balloon of claim 7 wherein the second layer consists essentially of biaxially oriented polyester.
Claim 10
Dependent Claim
20 words
The balloon of claim 1 further comprising a third polymeric layer adhered to one of the first or second layers.
Claim 11
Dependent Claim
58 words
An expandable catheter balloon comprising: (a) a first layer comprising biaxially oriented polyester; and (b) a second layer adhered to the first layer and comprising biaxially oriented polymer other than the biaxially oriented polyester of the first layer; the balloon being sized and configured for coronary transluminal application and having a burst pressure in excess of 7 atmospheres.
Claim 12
Dependent Claim
58 words
An expandable catheter balloon comprising: (a) a first layer comprising biaxially oriented polyester; and (b) a second layer adhered to the first layer and comprising biaxially oriented polymer other than the biaxially oriented polyester of the first layer; the balloon being sized and configured for coronary transluminal application and having a burst pressure in excess of 7 atmospheres.
Claim 13
Dependent Claim
19 words
The balloon of claim 10 wherein the first layer consists essentially of biaxially oriented polyethylene terephthalate co-polyester or homopolyester.
Claim 14
Dependent Claim
17 words
The balloon of claim 11 wherein the first layer consists essentially of biaxially oriented polyethylene terephthalate homopolyester.
Claim 15
Dependent Claim
17 words
The balloon of claim 11 wherein the first layer consists essentially of biaxially oriented polyethylene terephthalate co-polyester.
Claim 16
Dependent Claim
15 words
The balloon of claim 10 wherein the second layer consists essentially of biaxially oriented polyolefin.
Claim 17
Dependent Claim
15 words
The balloon of claim 14 wherein the second layer consists essentially of biaxially oriented polyethylene.
Claim 18
Dependent Claim
16 words
The balloon of claim 10 wherein the first layer is an outermost layer of the balloon.
Claim 19
Dependent Claim
16 words
The balloon of claim 10 wherein the second layer is an innermost layer of the balloon.
Claim 20
Dependent Claim
17 words
The balloon of claim 10 further comprising a lubricious coating on an outermost layer of the balloon.
Claim 21
Dependent Claim
26 words
The balloon of claim 10 wherein the biaxially oriented polyester of the first layer is more crystalline than the biaxially oriented polymer of the second layer.
Claim 22
Dependent Claim
25 words
The balloon of claim 19 wherein the second layer consists essentially of biaxially oriented polyester other than the biaxially oriented polyester of the first layer.
Claim 23
Dependent Claim
20 words
The balloon of claim 10 further comprising a third polymeric layer adhered to one of the first or second layers.
Claim 24
Dependent Claim
53 words
An expandable angioplasty catheter balloon comprising: (a) a first layer consisting essentially of biaxially oriented polyester; and (b) a second layer adhered to the first layer and consisting essentially of biaxially oriented polyolefin; the balloon being sized and configured for coronary transluminal angioplasty and having a burst pressure in excess of 7 atmospheres.
Claim 25
Dependent Claim
53 words
An expandable angioplasty catheter balloon comprising: (a) a first layer consisting essentially of biaxially oriented polyester; and (b) a second layer adhered to the first layer and consisting essentially of biaxially oriented polyolefin; the balloon being sized and configured for coronary transluminal angioplasty and having a burst pressure in excess of 7 atmospheres.
Claim 26
Dependent Claim
15 words
The balloon of claim 22 wherein the second layer consists essentially of biaxially oriented polyethylene.
Claim 27
Dependent Claim
16 words
The balloon of claim 22 wherein the first layer consists essentially of biaxially oriented polyethylene terephthalate.
Claim 28
Dependent Claim
15 words
The balloon of claim 24 wherein the second layer consists essentially of biaxially oriented polyethylene.
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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) | 2003-10-17 | 2004-04-17 | 2004-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-17 | 2008-04-17 | 2008-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-17 | 2012-04-17 | 2012-10-17 | $7700.00 | Window Closed / Lapsed |