US7615043B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical device incorporating a polymer blend
Assignee: Boston Scientific Scimed Inc
•
Filing: 2004-06-23
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Granted: 2009-11-10
•
Expires: 2024-06-23
Abstract
Abstract A catheter including a catheter shaft formed from a polymer blend and/or a braid. The polymer blend may include polyoxymethylene added in the dispersion phase to a polymer blend. The catheter braid can be formed from at least two continuous wires that are woven together. The catheter braid can include a proximal braid section and a distal braid section. Each of the continuous wires has a proximal diameter corresponding to the proximal braid section and a distal diameter corresponding to the distal braid section. The distal diameter of each wire can be less than the proximal diameter of that wire. A catheter braid so formed can be included in a catheter.
Inventors
- 👤 Pu Zhou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:14
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/04; A61L29/06; A61L29/049; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61M25/005; A61M25/0053; A61M2025/0008; A61M25/0021; A61M25/0041; A61M25/0054; A61M25/01; A61M25/06; A61M25/0662; A61M25/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A catheter shaft, comprising: an elongate shaft member having a proximal end region and a distal end region; wherein the catheter shaft includes a polymer blend having polyoxymethylene dispersed in a blend of polybutylene terephthalate and ether or ester based copolymer; and a catheter braid formed from at least two continuous wires woven together and disposed on the catheter shaft, the catheter braid comprising: a proximal braid section in which each of the continuous wires has a proximal cross-sectional area; and a distal braid section in which each of the continuous wires has a distal cross-sectional area; wherein for each continuous wire, the distal cross-sectional area of said continuous wire is less than the proximal cross-sectional area of said continuous wire.
Claim 2
Dependent Claim
121 words
A catheter shaft, comprising: an elongate shaft member having a proximal end region and a distal end region; wherein the catheter shaft includes a polymer blend having polyoxymethylene dispersed in a blend of polybutylene terephthalate and ether or ester based copolymer; and a catheter braid formed from at least two continuous wires woven together and disposed on the catheter shaft, the catheter braid comprising: a proximal braid section in which each of the continuous wires has a proximal cross-sectional area; and a distal braid section in which each of the continuous wires has a distal cross-sectional area; wherein for each continuous wire, the distal cross-sectional area of said continuous wire is less than the proximal cross-sectional area of said continuous wire.
Claim 3
Dependent Claim
21 words
The catheter shaft of claim 1 , wherein the polymer blend includes about 5% to about 40% by volume of polyoxymethylene.
Claim 4
Dependent Claim
21 words
The catheter shaft of claim 2 , wherein the polymer blend includes about 5% to about 90% by volume polybutylene terephthalate.
Claim 5
Dependent Claim
24 words
The catheter shaft of claim 2 , wherein the polymer blend includes about 5% to about 90% by volume ether or ester based copolymer.
Claim 6
Dependent Claim
60 words
A catheter shaft, comprising: an elongate shaft member having a proximal end region and a distal end region; wherein the catheter shaft includes a polymer blend having polyoxymethylene dispersed in a blend of polybutylene terephthalate and polyether-ester; wherein the shaft member includes a reinforcing braid, the braid having a proximal portion and a distal portion different from the proximal portion.
Claim 7
Dependent Claim
60 words
A catheter shaft, comprising: an elongate shaft member having a proximal end region and a distal end region; wherein the catheter shaft includes a polymer blend having polyoxymethylene dispersed in a blend of polybutylene terephthalate and polyether-ester; wherein the shaft member includes a reinforcing braid, the braid having a proximal portion and a distal portion different from the proximal portion.
Claim 8
Dependent Claim
21 words
The catheter shaft of claim 5 , wherein the polymer blend includes about 5% to about 40% by volume of polyoxymethylene.
Claim 9
Dependent Claim
21 words
The catheter shaft of claim 5 , wherein the polymer blend includes about 5% to about 90% by volume polybutylene terephthalate.
Claim 10
Dependent Claim
20 words
The catheter shaft of claim 5 , wherein the polymer blend includes about 5% to about 90% by volume polyether-ester.
Claim 11
Dependent Claim
26 words
The catheter shaft of claim 5 , wherein the braid is formed from at least two continuous wires woven together and disposed along the shaft member.
Claim 12
Dependent Claim
70 words
The catheter shaft of claim 9 , wherein along the proximal portion of the reinforcement layer each of the continuous wires has a proximal cross-sectional area, wherein along the distal portion of the reinforcement layer each of the continuous wires has a distal cross-sectional area, and wherein for each continuous wire, the distal cross-sectional area of the continuous wire is less than the proximal cross-sectional area of the continuous wire.
References Cited (Backward Citations)
US2437542A
Cited
US2472483A
Cited
US2472485A
Cited
US2472484A
Cited
US3416531A
Cited
US3485234A
Cited
US3481368A
Cited
US3463197A
Cited
US3612058A
Cited
US3924632A
Cited
US4210478A
Cited
US4321226A
Cited
US4447239A
Cited
US4279252A
Cited
US4657024A
Cited
US4385635A
Cited
US4419095A
Cited
US4588399A
Cited
US4430083A
Cited
US4425919A
Cited
US4690175A
Cited
US4495134A
Cited
US4899787A
Cited
US4516972A
Cited
US4665604A
Cited
US4484586A
Cited
US4516970A
Cited
US4563181A
Cited
US4531943A
Cited
US4571240A
Cited
US4577543A
Cited
US4764324A
Cited
US4842590A
Cited
US4636346A
Cited
EP0180348B1
Cited
US4639252A
Cited
US4705511A
Cited
US4735620A
Cited
US4737153A
Cited
US4838879A
Cited
EP0277366A1
Cited
US4817613A
Cited
US4863442A
Cited
US5078702A
Cited
US4898591A
Cited
US4904431A
Cited
US4981478A
Cited
US5017259A
Cited
US5037404A
Cited
US4985022A
Cited
US5069674A
Cited
EP0382974A1
Cited
US5441489A
Cited
US5045072A
Cited
US5248305A
Cited
US5217440A
Cited
US5019057A
Cited
US5176660A
Cited
US5226899A
Cited
US5453099A
Cited
US5057092A
Cited
US5163431A
Cited
US5180376A
Cited
US5279596A
Cited
EP0473045A1
Cited
US5217482A
Cited
US5190520A
Cited
US5178158A
Cited
US5160559A
Cited
US5184627A
Cited
US5569220A
Cited
WO1992015356A1
Cited
US5254107A
Cited
US5219335A
Cited
US5234416A
Cited
US5221270A
Cited
US5306252A
Cited
US5222949A
Cited
US5308342A
Cited
US5258160A
Cited
US5335305A
Cited
US5318032A
Cited
EP0555088A2
Cited
US5221372A
Cited
US5353808A
Cited
US5533987A
Cited
US5417981A
Cited
US5334169A
Cited
US5451209A
Cited
US5584821A
Cited
US5531721A
Cited
US5538513A
Cited
US5358493A
Cited
US5772609A
Cited
US5674208A
Cited
US6212422B1
Cited
US5676659A
Cited
US5603705A
Cited
US5554139A
Cited
US5639409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2012-11-09 | 2013-05-11 | 2013-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2016-11-09 | 2017-05-11 | 2017-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2020-11-09 | 2021-05-11 | 2021-11-10 | $7700.00 | Window Closed / Lapsed |