Patent US5147302A successfully refreshed from Google Patents.
US5147302A
Expired / Lapsed
US
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Method of shaping a balloon of a balloon catheter
Assignee: Boston Scientific Scimed Inc
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Filing: 1989-04-21
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Granted: 1992-09-15
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Expires: 2009-04-21
Abstract
Abstract The balloon of an angioplasty balloon catheter is prepared for insertion through a patient's cardiovascular system by a series of steps to create three or more folded wings or flaps. The wings are wrapped circumferentially to provide a minimized outer diameter when the balloon is in its deflated state.
Inventors
- 👤 Charles L. Euteneuer
- 👤 Peter T. Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1027; A61M25/1038; A61M25/104; A61M25/1002; A61M2025/1004
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
115 words
A method of shaping a balloon of a balloon catheter when the balloon is in a deflated state and includes a member extending longitudinally through the balloon, the method comprising: inflating at least a portion of the balloon; applying external pressure to the balloon in a generally radially inward direction; deflating the balloon to form at least three folded wings; applying a cover over the balloon which causes the wings to wrap around the member, the cover including a plurality of tubes, each having a length which is less than a length of the balloon; and subjecting the balloon to a heat treatment at an elevated temperature with the tubes of the cover in place.
Claim 2
Independent Claim
115 words
A method of shaping a balloon of a balloon catheter when the balloon is in a deflated state and includes a member extending longitudinally through the balloon, the method comprising: inflating at least a portion of the balloon; applying external pressure to the balloon in a generally radially inward direction; deflating the balloon to form at least three folded wings; applying a cover over the balloon which causes the wings to wrap around the member, the cover including a plurality of tubes, each having a length which is less than a length of the balloon; and subjecting the balloon to a heat treatment at an elevated temperature with the tubes of the cover in place.
Claim 3
Dependent Claim
32 words
The method of claim 1 and further comprising: removing the tubes of the cover after heat treatment; and sliding a balloon protector longitudinally over the wrapped balloon while applying a vacuum thereto.
Claim 4
Dependent Claim
22 words
The method of claim 2 wherein the balloon protector includes a longitudinal expansion slit therealong to facilitate placement over the wrapped balloon.
Claim 5
Dependent Claim
21 words
The method of claim 3 and further comprising: applying an outer balloon protector over the balloon protector with the expansion slit.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein the balloon is of a material which is heat set by the heat treatment.
Claim 7
Dependent Claim
21 words
The method of claim 1 and further comprising: after heat treatment, replacing the tubes of the cover with a balloon protector.
Claim 8
Dependent Claim
23 words
The method of claim 6 and further comprising: further compressing the folded wings by applying an outer balloon protector over the balloon protector.
Claim 9
Dependent Claim
20 words
The method of claim 7 and further comprising: subjecting the balloon and balloon protectors thereon to a second heat treatment.
Claim 10
Independent Claim
88 words
A method of shaping a balloon of a balloon catheter when the balloon is in a deflated state, the method comprising: inflating at least a portion of the balloon; applying external pressure to the balloon in a generally radially inward direction; deflating the balloon to form at least three folded wings; clamping a first portion of the balloon to form a first folded wing prior to inflating at least a second portion of the balloon; and wherein applying external pressure and deflating forms second and third folded wings.
Claim 11
Independent Claim
88 words
A method of shaping a balloon of a balloon catheter when the balloon is in a deflated state, the method comprising: inflating at least a portion of the balloon; applying external pressure to the balloon in a generally radially inward direction; deflating the balloon to form at least three folded wings; clamping a first portion of the balloon to form a first folded wing prior to inflating at least a second portion of the balloon; and wherein applying external pressure and deflating forms second and third folded wings.
Claim 12
Dependent Claim
27 words
The method of claim 9 wherein the balloon catheter includes a member extending longitudinally through the balloon, and further comprising: wrapping the folded wings around the member.
Claim 13
Dependent Claim
25 words
The method of claim 10 and further comprising: applying a balloon protector over the deflated balloon which causes the wings to wrap around the member.
Claim 14
Dependent Claim
24 words
The method of claim 11 and further comprising: subjecting the balloon to an elevated temperature with the balloon protector in place over the balloon.
Claim 15
Dependent Claim
20 words
The method of claim 12 wherein the balloon is of a material which is heat set by the heat treatment.
Claim 16
Dependent Claim
40 words
The method of claim 10 wherein wrapping comprises: applying a cover over the balloon which causes the wings to wrap around the member; and subjecting the balloon to a heat treatment at an elevated temperature with the cover in place.
Claim 17
Dependent Claim
20 words
The method of claim 14 wherein the balloon is of a material which is heat set by the heat treatment.
Claim 18
Independent Claim
62 words
A method of shaping a balloon of a balloon catheter which has a core member extending longitudinally through the balloon, the method comprising: clamping a part of the balloon to form a first wing portion; inflating the balloon: pinching the balloon while deflating the balloon to form at least two additional wing portions; and wrapping the wing portions around the core member.
Claim 19
Independent Claim
62 words
A method of shaping a balloon of a balloon catheter which has a core member extending longitudinally through the balloon, the method comprising: clamping a part of the balloon to form a first wing portion; inflating the balloon: pinching the balloon while deflating the balloon to form at least two additional wing portions; and wrapping the wing portions around the core member.
Claim 20
Dependent Claim
19 words
The method of claim 16 and further comprising: applying a cover over the wrapped wing portions of the balloon.
Claim 21
Dependent Claim
23 words
The method of claim 17 and further comprising: subjecting the balloon to an elevated temperature with the cover in place over the balloon.
Claim 22
Dependent Claim
13 words
The method of claim 17 wherein the cover includes a plurality of tubes.
Claim 23
Dependent Claim
20 words
The method of claim 19 wherein each tube has a length which is less than a length of the balloon.
Claim 24
Dependent Claim
13 words
The method of claim 17 wherein the cover has a longitudinal slit therein.
Claim 25
Independent Claim
72 words
A method of shaping a balloon of a balloon catheter which has a core member extending longitudinally through the balloon, the method comprising: forming at least three folded wings in the balloon in a deflated condition; and applying a cover over the balloon which causes the wings to wrap around the member, the cover including a plurality of tubes, each having a length which is less than a length of the balloon.
Claim 26
Independent Claim
72 words
A method of shaping a balloon of a balloon catheter which has a core member extending longitudinally through the balloon, the method comprising: forming at least three folded wings in the balloon in a deflated condition; and applying a cover over the balloon which causes the wings to wrap around the member, the cover including a plurality of tubes, each having a length which is less than a length of the balloon.
Claim 27
Dependent Claim
27 words
The method of claim 22 and further comprising: subjecting the balloon to a heat treatment at an elevated temperature with the cover in place over the balloon.
Claim 28
Dependent Claim
20 words
The method of claim 23 wherein the balloon is of a material which is heat set by the heat treatment.
Claim 29
Dependent Claim
21 words
The method of claim 22 and further comprising: after heat treatment, replacing the tubes of the cover with a balloon protector.
Claim 30
Dependent Claim
23 words
The method of claim 25 and further comprising: further compressing the folded wings by applying an outer balloon protector over the balloon protector.
Claim 31
Dependent Claim
20 words
The method of claim 26 and further comprising: subjecting the balloon and balloon protectors thereon to a second heat treatment.
Claim 32
Independent Claim
62 words
A method of shaping a balloon of a balloon catheter which has a core member extending longitudinally through the balloon, the method comprising: inflating the balloon; deflating the balloon while applying external force to the balloon at a plurality of circumferentially spaced positions to form at least three folded wings in the balloon; and wrapping the folded wings around the core member.
Claim 33
Independent Claim
62 words
A method of shaping a balloon of a balloon catheter which has a core member extending longitudinally through the balloon, the method comprising: inflating the balloon; deflating the balloon while applying external force to the balloon at a plurality of circumferentially spaced positions to form at least three folded wings in the balloon; and wrapping the folded wings around the core member.
Claim 34
Dependent Claim
24 words
The method of claim 28 wherein wrapping comprises: applying a cover over the balloon which causes the folded wings to wrap around the member.
Claim 35
Dependent Claim
13 words
The method of claim 29 wherein the cover includes a longitudinal slit therethrough.
Claim 36
Dependent Claim
41 words
The method of claim 28 wherein wrapping comprises: applying a cover over the balloon which causes the folded wings to wrap around the member; and subjecting the balloon to a heat treatment at an elevated temperature with the cover in place.
Claim 37
Dependent Claim
20 words
The method of claim 31 wherein the balloon is of a material which is heat set by the heat treatment.
Claim 38
Dependent Claim
26 words
The method of claim 29 wherein the cover includes a plurality of tubes, each having a length which is less than a length of the balloon.
Claim 39
Dependent Claim
56 words
The method of claim 31 wherein the wrapping further comprises: removing the cover after the heat treatment; applying a second smaller cover over the balloon which causes the folded wings to wrap even tighter around the member; and subjecting the balloon to a second heat treatment at an elevated temperature with the second cover in place.
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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) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |