Patent US2869357A successfully refreshed from Google Patents.
US4884573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Very low profile angioplasty balloon catheter with capacity to use steerable, removable guidewire
Assignee: Boston Scientific Scimed Inc
•
Filing: 1988-03-07
•
Granted: 1989-12-05
•
Expires: 2008-03-07
Abstract
Abstract A very low profile balloon catheter is disclosed that allows for an independently movable, steerable and removable guidewire. After removal of the guidewire, the balloon catheter retains adequately angiographic and hemodynamic characteristics. Such catheter construction allows for exchange of guidewires. A tracking mechanical device is included and provides excellent and easy advancement of the balloon catheter through severe obstructions.
Inventors
- 👤 Bandula Wijay
- 👤 Paolo Angelini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61L; A61L29/00; A61L29/04; A61L29/06; A61M2025/0004
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
An angioplasty balloon catheter assembly, comprising: a balloon-tipped, very low profile catheter made of plastic material having a tensile strength of at least 10,000 psi and including outer and inner coaxial tubes, defining an outer access annular passageway therebetween for inflating and deflating said balloon and an inner access annular passageway; and a movable and steerable and removable guidewire received in said inner access annular passageway; wherein the wall thicknesses of said outer and coaxial tubes are not more than about 0.001 inch.
Claim 2
Dependent Claim
83 words
An angioplasty balloon catheter assembly, comprising: a balloon-tipped, very low profile catheter made of plastic material having a tensile strength of at least 10,000 psi and including outer and inner coaxial tubes, defining an outer access annular passageway therebetween for inflating and deflating said balloon and an inner access annular passageway; and a movable and steerable and removable guidewire received in said inner access annular passageway; wherein the wall thicknesses of said outer and coaxial tubes are not more than about 0.001 inch.
Claim 3
Dependent Claim
22 words
An angioplasty balloon catheter assembly in accordance with claim 1, wherein said outer and inner coaxial tubes are made from polyimide plastic.
Claim 4
Dependent Claim
22 words
An angioplasty balloon catheter assembly in accordance with claim 1 and including a stiffness rod located in said balloon access annular passageway.
Claim 5
Dependent Claim
47 words
The apparatus of claim 1 wherein said inner access annular passageway has an inside diameter of above 0.015 inch and said outer access annular passageway has an outer diameter of less than 0.045 inch and further comprising a stiffness rod located in said ball access member passageway.
Claim 6
Dependent Claim
117 words
A percutaneous transluminal angioplasty catheter assembly, comprising a dilating catheter, a balloon attached to the distal end of said dilating catheter, said balloon being made of a relatively non-distensible material, said dilating catheter being made of plastic material having a tensile strength of at least 10,000 psi and including outer and inner coaxial tube defining a balloon access annular passageway therebetween, said balloon access annular passageway providing access for inflating and deflating said balloon. an annular guiding catheter surrounding said dilating catheter, and a removable and steerable guidewire for passing through said inner coaxial tube of said dilating catheter; and wherein the wall thickness of said outer and coaxial tubes are not more than about 0.001 inch.
Claim 7
Dependent Claim
117 words
A percutaneous transluminal angioplasty catheter assembly, comprising a dilating catheter, a balloon attached to the distal end of said dilating catheter, said balloon being made of a relatively non-distensible material, said dilating catheter being made of plastic material having a tensile strength of at least 10,000 psi and including outer and inner coaxial tube defining a balloon access annular passageway therebetween, said balloon access annular passageway providing access for inflating and deflating said balloon. an annular guiding catheter surrounding said dilating catheter, and a removable and steerable guidewire for passing through said inner coaxial tube of said dilating catheter; and wherein the wall thickness of said outer and coaxial tubes are not more than about 0.001 inch.
Claim 8
Dependent Claim
51 words
A percutaneous transluminal angioplasty catheter assembly in accordance with claim 5, and including an advancement device, secured to the proximal ends of the guiding catheter, said dilating catheter and said guidewire, to permit gradual precise and secured advancement of said dilating catheter with respect to said guiding catheter over said guidewire.
Claim 9
Dependent Claim
47 words
The apparatus of claim 5 wherein said inner access annular passageway has an inside diameter of above 0.015 inch and said outer access annular passageway has an outside diameter of less than 0.045 inch and further comprising a stiffness rod located in said balloon access member passageway.
References Cited (Backward Citations)
DE654214C
Cited
US3435826A
Cited
US3434869A
Cited
US3671490A
Cited
US3605725A
Cited
US3834394A
Cited
US3890976A
Cited
US3833004A
Cited
US4029104A
Cited
US4024873A
Cited
US4024873B1
Cited
GB1566674A
Cited
US4154244A
Cited
US4327709A
Cited
US4323071B1
Cited
US4323071A
Cited
US4292947A
Cited
US4254774A
Cited
US4271839A
Cited
US4299226A
Cited
US4307722A
Cited
US4385635A
Cited
US4411055A
Cited
US4318410A
Cited
US4413989A
Cited
US4326532A
Cited
US4467790A
Cited
US4531512A
Cited
CH654214A5
Cited
US4773901A
Cited
US4445892A
Cited
US4464176A
Cited
US4536179A
Cited
US4820270A
Cited
US4526175A
Cited
US4581017B1
Cited
US4581017A
Cited
US4490421A
Cited
US4517979A
Cited
US4531943A
Cited
US4571240A
Cited
US4582181A
Cited
US4702252A
Cited
US4572186A
Cited
US4589412A
Cited
US4583974A
Cited
US4573470A
Cited
US4597755A
Cited
US4664113A
Cited
US4587975A
Cited
US4577637A
Cited
US4762129B1
Cited
US4762129A
Cited
US4616648A
Cited
WO1986005236A1
Cited
GB2172205A
Cited
US4824436A
Cited
US4738666A
Cited
US4616653A
Cited
US4650466A
Cited
US4692148A
Cited
US4676249A
Cited
US4754752A
Cited
US4775371A
Cited
US4763654A
Cited
US4744366A
Cited
EP0260711A2
Cited
US4777510A
Cited
US4771777A
Cited
US4821722A
Cited
US4771776A
Cited
US4771778A
Cited
US4748982A
Cited
US4798586A
Cited
US4748984A
Cited
US4796629A
Cited
US4808164A
Cited
US4811737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |