US4994032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balloon catheter
Assignee: Terumo Corp
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Filing: 1988-11-29
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Granted: 1991-02-19
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Expires: 2008-11-29
Abstract
Abstract There is provided a balloon catheter comprising a tubular body including at least one lumen, and a foldable balloon provided at a predetermined distal portion on the outer surface of said tubular body so that the balloon communicates with at least one lumen in said tubular body, wherein reinforcement is provided at a predetermined portion on the outer surface of said tubular body surrounded by said balloon. The reinforcement is preferably formed on an X-ray opague material and in the form of a coil.
Inventors
- 👤 Yoshiaki Sugiyama
- 👤 Kyuta Sagae
- 👤 Susumu Tanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:09
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; A61M25/0043; A61M25/005; A61M25/0052; A61M2025/0004
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
122 words
A balloon catheter, comprising: a tubular body including at least one lumen; a foldable balloon provided at a predetermined distal portion of said tubular body and surrounding the outer surface off said distal portion of said tubular body so that said balloon communicates with said at least one lumen of said tubular body; a coil spring provided at a predetermined portion on the outer surface of the portion of said tubular body surrounded by said balloon, for reinforcing said tubular body, said coil spring having opposite end portions and an intermediate portion, said coil spring being wound such that the turns thereof are in intimate contact with each other at both end portions thereof and are sparse in said intermediate portion thereof.
Claim 2
Dependent Claim
122 words
A balloon catheter, comprising: a tubular body including at least one lumen; a foldable balloon provided at a predetermined distal portion of said tubular body and surrounding the outer surface off said distal portion of said tubular body so that said balloon communicates with said at least one lumen of said tubular body; a coil spring provided at a predetermined portion on the outer surface of the portion of said tubular body surrounded by said balloon, for reinforcing said tubular body, said coil spring having opposite end portions and an intermediate portion, said coil spring being wound such that the turns thereof are in intimate contact with each other at both end portions thereof and are sparse in said intermediate portion thereof.
Claim 3
Dependent Claim
40 words
The balloon catheter of claim 1, wherein the outside diameter of a portion of the catheter to be introduced into a patient's body which is formed by said tubular body and said folded balloon is not more than 2.7 cm.
Claim 4
Dependent Claim
17 words
The balloon catheter of claim 1, wherein said coil spring is formed of an X-ray opaque material.
Claim 5
Dependent Claim
24 words
The balloon catheter of claim 3, wherein said X-ray opaque material is selected from the group consisting of platinum, gold, tungsten, and alloys thereof.
Claim 6
Dependent Claim
15 words
The balloon catheter of claim 3, wherein said X-ray opaque material is a silver-palladium alloy.
Claim 7
Dependent Claim
19 words
The balloon catheter of claim 1, wherein said coil spring is formed from a wire having a circular cross-section.
Claim 8
Dependent Claim
19 words
The balloon catheter of claim 1, wherein said coil spring is formed from a wire having a rectangular cross-section.
Claim 9
Dependent Claim
19 words
The balloon catheter of claim 1, wherein said coil spring is formed from a wire having a ellipsoidal cross-section.
Claim 10
Dependent Claim
15 words
The balloon catheter of claim 1, wherein said tubular body has at least two lumens.
Claim 11
Dependent Claim
23 words
The balloon catheter of claim 9, wherein at least one of said lumens is open at said distal end of said tubular body.
Claim 12
Dependent Claim
14 words
The balloon catheter of claim 1, wherein said tubular body has a single lumen.
Claim 13
Dependent Claim
20 words
The balloon catheter of claim 11, wherein said tubular member defining said single lumen is closed at its distal end.
Claim 14
Dependent Claim
20 words
The balloon catheter of claim 11, wherein said tubular member defining said single lumen is open at its distal end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-18 | 1994-08-20 | 1995-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-18 | 1998-08-20 | 1999-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-18 | 2002-08-20 | 2003-02-19 | $7700.00 | Window Closed / Lapsed |