US4813930A
Expired / Lapsed
US
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Angioplasty guiding catheters and methods for performing angioplasty
Assignee: DIMED INCORPORATED 2018 BROOKWOOD MEDICAL CENTER DRIVE SUITE 305 BIRMINGHAM JEFFERSON ALABAMA 35209 A CORP OF ALABAMA
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Filing: 1987-10-13
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Granted: 1989-03-21
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Expires: 2007-10-13
Abstract
Abstract The invention relates to an angioplasty guiding catheter and methods for performing coronary angioplasty on a patient, to dilate constrictions in blood vessels. The guiding catheter has an elongated first member having at least one lumen therethrough and a tip, at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of patient's cardiovascular system, and means for extending the leg member from the retracted position to the extended position, coupled to the leg member. The angioplasty methods of the present invention involves entering the patient's cardiovascular system, pericutaneously patient's cardiovascular system to a desired translating through the location proximate a constriction in a blood vessel, abutting against an internal wall of the cardiovascular system, advancing towards the constriction in a direction generally opposite the abutting, for overcoming resistance by the constriction to the advancing and dilating the vessel at the constriction site.
Inventors
- 👤 Clyde D. Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:01
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
86 words
An angioplasty guiding catheter comprising: an elongated first member having at least one lumen therethrough and a tip; at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of a patient's cardiovascular system; and means for extending the leg member from the retracted position to the extended position, the extending means being coupled to the leg member.
Claim 2
Dependent Claim
86 words
An angioplasty guiding catheter comprising: an elongated first member having at least one lumen therethrough and a tip; at least one leg member, coupled to the first member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, for abutment against an internal wall of a patient's cardiovascular system; and means for extending the leg member from the retracted position to the extended position, the extending means being coupled to the leg member.
Claim 3
Dependent Claim
34 words
The catheter of claim 1, wherein the leg member comprises a resilient, elongated second member having a portion thereof bendable in a radially extendable bowed configuration from the retracted position to the extended position.
Claim 4
Dependent Claim
18 words
The catheter of claim 2, wherein the second member has a first end embedded in the first member.
Claim 5
Dependent Claim
21 words
The catheter of claim 2, wherein the first member has a second lumen and the second member is slidably engaged therein.
Claim 6
Dependent Claim
18 words
The catheter of claim 4, wherein the second member and the second lumen have a corresponding non-circular cross-section
Claim 7
Dependent Claim
18 words
The catheter of claim 4, wherein the second member and the second lumen have a corresponding D-shaped cross-section.
Claim 8
Dependent Claim
53 words
The catheter of claim 2, wherein the first member has a second lumen and an outer surface having a groove thereon, the second member is slidably engaged in the second lumen and the second member bendable portion is receivable in the first member groove when the bendable portion is in the collapsed position.
Claim 9
Dependent Claim
11 words
The catheter of claim 2, having at least two leg members.
Claim 10
Dependent Claim
17 words
The catheter of claim 2, wherein the means for extending the leg member is a thumbwheel mechanism.
Claim 11
Dependent Claim
17 words
The catheter of claim 2, wherein the means for extending the leg member is a locking collar.
Claim 12
Dependent Claim
147 words
An angioplasty guiding catheter comprising: an elongated first member having first and second luma and a tip; at least one leg member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, having a resilient, elongated second member slidably engaged in the second lumen, the second member having a portion thereof bendable in a radially extendable bowed configuration from the retracted position to the extended position for abutment against an internal wall of a patient's cardiovascular system the second member further having a first end embedded in the first member; and means for extending the second member, having a thumbwheel mechanism coupled to the second member, so that rotation of the thumbwheel slidably advances the second member relative to the first member second lumen and bends the second member into the bowed, extended position.
Claim 13
Dependent Claim
147 words
An angioplasty guiding catheter comprising: an elongated first member having first and second luma and a tip; at least one leg member, radially extendable from a retracted position generally in contact with the first member to an extended position generally away from the first member, having a resilient, elongated second member slidably engaged in the second lumen, the second member having a portion thereof bendable in a radially extendable bowed configuration from the retracted position to the extended position for abutment against an internal wall of a patient's cardiovascular system the second member further having a first end embedded in the first member; and means for extending the second member, having a thumbwheel mechanism coupled to the second member, so that rotation of the thumbwheel slidably advances the second member relative to the first member second lumen and bends the second member into the bowed, extended position.
Claim 14
Dependent Claim
57 words
The catheter of claim 11, wherein the first member has an outer surface having at least two grooves thereon and at least two second luma; at least two second members, and wherein the bendable portions of each second member is receivable in a first member groove when the bendable portion of each is in the collapsed position.
Claim 15
Dependent Claim
75 words
In a patient, a method for performing angioplasty of a constriction site in a vessel of the patient's cardiovascular system comprising: entering the cardiovasular system; pericutaneously translating through the cardiovascular system to a desired location proximate the constriction; abutting against an internal wall of the patient's cardiovascular system; advancing towards the constriction in a direction generally opposite the abutting, for overcoming resistance by the constriction to the advancing; and dilating the vessel at the constriction.
Claim 16
Dependent Claim
75 words
In a patient, a method for performing angioplasty of a constriction site in a vessel of the patient's cardiovascular system comprising: entering the cardiovasular system; pericutaneously translating through the cardiovascular system to a desired location proximate the constriction; abutting against an internal wall of the patient's cardiovascular system; advancing towards the constriction in a direction generally opposite the abutting, for overcoming resistance by the constriction to the advancing; and dilating the vessel at the constriction.
Claim 17
Dependent Claim
65 words
The method of claim 13, wherein the abutting is performed with a catheter having an elongated first member and at least one leg member coupled to the first member that is radially extendable from a retracted position generally in contact with the first member to an extendable position generally away from the first member by extending the leg member and contacting the internal wall therewith
Claim 18
Dependent Claim
27 words
The method of claim 14, wherein the advancing is performed by translating an angioplasty instrument through the first member lumen and positioning the instrument in the constriction.
Claim 19
Dependent Claim
13 words
The method of claim 15, wherein the instrument includes a balloon dilation catheter.
Claim 20
Dependent Claim
12 words
The method of claim 15, wherein the instrument includes a guide wire.
Claim 21
Dependent Claim
11 words
The method of claim 15, wherein the instrument includes an angioscope.
Claim 22
Dependent Claim
13 words
The method of claim 15, wherein the instrument includes a laser angioplasty catheter.
Claim 23
Dependent Claim
34 words
The method of claim 14, wherein the leg member is a resilient, elongated second member having a portion thereof bendable in a radially extendable bowed configuration from the retracted position to the extended position.
References Cited (Backward Citations)
US4586923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |