US6364894B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an angioplasty balloon catheter
Assignee: Cordis US Corp
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Filing: 2000-06-12
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Granted: 2002-04-02
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Expires: 2020-06-12
Abstract
Abstract A balloon catheter for medical treatment of a patient has a proximal hub, flexible catheter shaft, a balloon, and an improved tip design. The catheter defines a guidewire lumen defined by a tubular inner body extending from a distal guidewire port to a proximal port located at a position proximal from the balloon. The guidewire lumen preferably has a constant cross-sectional area from the distal guidewire port to the proximal end of the balloon. At least one marker band is affixed to the inner body at a location within the balloon. A distal leg of the balloon is affixed to the inner body and a location between the marker band and the distal end of the inner body. A portion of the inner body extending in the proximal direction from the marker band has a substantially constant inner lumen diameter. However, the inner body wall thickness tapers to a narrower tip wall thickness, extending from a location between the marker band and the balloon distal leg, to the distal end of the inner body. A distal portion of the distal leg is also preferably tapered.
Inventors
- 👤 Stephen R. Healy
- 👤 Jason White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:08
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M2025/0004; A61M2025/0006; A61M2025/1043; A61M2025/1079; A61M2025/1093
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
A method of making an angioplasty balloon catheter for performing a therapeutic procedure on a patient, comprising the steps of: (a) forming a tubular inner body, a tubular outer body, and forming an angioplasty balloon; the inner and outer bodies and balloon all having proximal and distal ends; (b) affixing a radiopaque marker to the tubular inner body; (c) inserting a mandrel within a lumen defined by the tubular inner body, and drawing down a unitary portion of the tubular inner body distal of the radiopaque marker from a first wall thickness to a smaller second wall thickness, defining a transition between the first and second wall thicknesses; (d) inserting the inner body and mandrel assembly into the balloon; (e) inserting the outer body within a balloon proximal leg, and heat sealing the balloon proximal leg to the outer body; and (f) heat-sealing a distal leg of the balloon to the inner body at a position distal of the wall thickness transition; (g) shaving a distal portion of the distal balloon leg to form a distal tapering portion.
Claim 2
Independent Claim
178 words
A method of making an angioplasty balloon catheter for performing a therapeutic procedure on a patient, comprising the steps of: (a) forming a tubular inner body, a tubular outer body, and forming an angioplasty balloon; the inner and outer bodies and balloon all having proximal and distal ends; (b) affixing a radiopaque marker to the tubular inner body; (c) inserting a mandrel within a lumen defined by the tubular inner body, and drawing down a unitary portion of the tubular inner body distal of the radiopaque marker from a first wall thickness to a smaller second wall thickness, defining a transition between the first and second wall thicknesses; (d) inserting the inner body and mandrel assembly into the balloon; (e) inserting the outer body within a balloon proximal leg, and heat sealing the balloon proximal leg to the outer body; and (f) heat-sealing a distal leg of the balloon to the inner body at a position distal of the wall thickness transition; (g) shaving a distal portion of the distal balloon leg to form a distal tapering portion.
Claim 3
Dependent Claim
31 words
The method as set forth in claim 1 , wherein the step (g) of shaving occurs before the step (d) of inserting the inner body and mandrel assembly into the balloon.
Claim 4
Independent Claim
178 words
A method of making an angioplasty balloon catheter for performing a therapeutic procedure on a patient, comprising the steps of: (a) forming a tubular inner body, a tubular outer body, and forming an angioplasty balloon; the inner and outer bodies and balloon all having proximal and distal ends; (b) affixing a radiopaque marker to the tubular inner body; (c) inserting a mandrel within a lumen defined by the tubular inner body, and drawing down a unitary portion of the tubular inner body distal of the radiopaque marker from a first wall thickness to a smaller second wall thickness, defining a transition between the first and second wall thicknesses; (d) shaving a distal portion of a distal balloon leg to form a distal tapering portion; (e) inserting the inner body and mandrel assembly into the balloon; (f) inserting the outer body within a balloon proximal leg, and heat sealing the balloon proximal leg to the outer body; and (g) heat-sealing the distal leg of the balloon to the inner body at a position distal of the wall thickness transition.
Claim 5
Independent Claim
178 words
A method of making an angioplasty balloon catheter for performing a therapeutic procedure on a patient, comprising the steps of: (a) forming a tubular inner body, a tubular outer body, and forming an angioplasty balloon; the inner and outer bodies and balloon all having proximal and distal ends; (b) affixing a radiopaque marker to the tubular inner body; (c) inserting a mandrel within a lumen defined by the tubular inner body, and drawing down a unitary portion of the tubular inner body distal of the radiopaque marker from a first wall thickness to a smaller second wall thickness, defining a transition between the first and second wall thicknesses; (d) shaving a distal portion of a distal balloon leg to form a distal tapering portion; (e) inserting the inner body and mandrel assembly into the balloon; (f) inserting the outer body within a balloon proximal leg, and heat sealing the balloon proximal leg to the outer body; and (g) heat-sealing the distal leg of the balloon to the inner body at a position distal of the wall thickness transition.
Claim 6
Independent Claim
195 words
A method of making an angioplasty balloon catheter for performing a therapeutic procedure on a patient, comprising the steps of: (a) forming a tubular inner body, a tubular outer body, and forming an angioplasty balloon; the inner and outer bodies and balloon all having proximal and distal ends; (b) affixing a first and second radiopaque marker to the tubular inner body; (c) inserting a mandrel within a lumen defined by the tubular inner body, and drawing down a unitary portion of the tubular inner body distal of the radiopaque markers from a first wall thickness to a smaller second wall thickness, defining a transition between the first and second wall thicknesses; (d) inserting the inner body and mandrel assembly into the balloon; and aligning each of the markers with an end of a balloon working length; (e) inserting the outer body within a balloon proximal leg, and heat sealing the balloon proximal leg to the outer body; and (f) heat-sealing a distal leg of the balloon to the inner body at a position distal of the wall thickness transition; (g) shaving a distal portion of the distal balloon leg to form a distal tapering portion.
Claim 7
Independent Claim
195 words
A method of making an angioplasty balloon catheter for performing a therapeutic procedure on a patient, comprising the steps of: (a) forming a tubular inner body, a tubular outer body, and forming an angioplasty balloon; the inner and outer bodies and balloon all having proximal and distal ends; (b) affixing a first and second radiopaque marker to the tubular inner body; (c) inserting a mandrel within a lumen defined by the tubular inner body, and drawing down a unitary portion of the tubular inner body distal of the radiopaque markers from a first wall thickness to a smaller second wall thickness, defining a transition between the first and second wall thicknesses; (d) inserting the inner body and mandrel assembly into the balloon; and aligning each of the markers with an end of a balloon working length; (e) inserting the outer body within a balloon proximal leg, and heat sealing the balloon proximal leg to the outer body; and (f) heat-sealing a distal leg of the balloon to the inner body at a position distal of the wall thickness transition; (g) shaving a distal portion of the distal balloon leg to form a distal tapering portion.
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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) | 2005-04-01 | 2005-10-01 | 2006-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-01 | 2009-10-01 | 2010-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-01 | 2013-10-01 | 2014-04-02 | $7700.00 | Window Closed / Lapsed |