Patent US4930341A successfully refreshed from Google Patents.
US4930341A
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US
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Method of prepping a dilatation catheter
Assignee: Boston Scientific Scimed Inc
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Filing: 1989-03-15
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Granted: 1990-06-05
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Expires: 2009-03-15
Abstract
Abstract A method of testing a dilatation balloon catheter prior to use which comprises purging and priming the balloon catheter with a balloon protector in place about the balloon.
Inventors
- 👤 Charles L. Euteneuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:15
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/104; G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; A61B; A61B17/00; A61B17/22; A61B2017/22001; A61M2025/0018; A61M25/0043; A61M2025/0063; A61M2025/1043; A61M2025/1077; A61M2025/1079
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
81 words
A method of preparing a dilatation catheter prior to use in an angioplasty procedure, the method comprising: providing the dilatation catheter with a balloon protector over a balloon at a distal end of the catheter with the balloon being in an initial uninflated state; priming the balloon with the balloon protector in place over the balloon, whereby the balloon protector maintains the balloon in its uninflated state during priming; and removing the balloon protector from the distance end of the catheter.
Claim 2
Independent Claim
81 words
A method of preparing a dilatation catheter prior to use in an angioplasty procedure, the method comprising: providing the dilatation catheter with a balloon protector over a balloon at a distal end of the catheter with the balloon being in an initial uninflated state; priming the balloon with the balloon protector in place over the balloon, whereby the balloon protector maintains the balloon in its uninflated state during priming; and removing the balloon protector from the distance end of the catheter.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein priming the balloon includes the step of pressurizing the balloon.
Claim 4
Dependent Claim
19 words
The method of claim 1 wherein priming the balloon includes the step of applying a vacuum to the balloon.
Claim 5
Independent Claim
121 words
A method for preparing a dilatation catheter for angioplasty use, wherein the catheter has a shaft with a proximal end and a distal end, an inflatable balloon at the distal end, and a removable balloon protector covering the balloon, the method comprising the steps of: applying a vacuum through the shaft to the balloon while the balloon protector is in place over the balloon; pressurizing the balloon while the balloon protector is in place over the balloon and the balloon is in an uninflated state, with the balloon protector maintaining the balloon in its uninflated state; again applying a vacuum to the balloon while the balloon protector is in place over the balloon; and removing the balloon protector from the balloon.
Claim 6
Independent Claim
121 words
A method for preparing a dilatation catheter for angioplasty use, wherein the catheter has a shaft with a proximal end and a distal end, an inflatable balloon at the distal end, and a removable balloon protector covering the balloon, the method comprising the steps of: applying a vacuum through the shaft to the balloon while the balloon protector is in place over the balloon; pressurizing the balloon while the balloon protector is in place over the balloon and the balloon is in an uninflated state, with the balloon protector maintaining the balloon in its uninflated state; again applying a vacuum to the balloon while the balloon protector is in place over the balloon; and removing the balloon protector from the balloon.
Claim 7
Dependent Claim
21 words
The method of claim 4, and further comprising the step of: inspecting the catheter, during pressurizing, for leaks and pressure drops.
Claim 8
Independent Claim
86 words
A method of testing a dilatation balloon catheter prior to use, the catheter having a shaft with a fluid coupling at a proximal end and inflatable balloon at a distal end, the method comprising: connecting an inflation device containing inflation solution to the fluid coupling; and pressurizing the balloon catheter using inflation solution from the inflation device while a balloon protector is in place on the balloon and the balloon is in an uninflated state, with the balloon protector maintaining the balloon in its uninflated state.
Claim 9
Independent Claim
86 words
A method of testing a dilatation balloon catheter prior to use, the catheter having a shaft with a fluid coupling at a proximal end and inflatable balloon at a distal end, the method comprising: connecting an inflation device containing inflation solution to the fluid coupling; and pressurizing the balloon catheter using inflation solution from the inflation device while a balloon protector is in place on the balloon and the balloon is in an uninflated state, with the balloon protector maintaining the balloon in its uninflated state.
Claim 10
Dependent Claim
31 words
The method of claim 6 wherein the pressurizing step includes: applying to the balloon a predetermined pressure; and checking the catheter and inflation device for visible leaks and loss of pressure.
Claim 11
Dependent Claim
13 words
The method of claim 7 wherein the predetermined pressure is about 10 atmospheres.
Claim 12
Dependent Claim
20 words
The method of claim 6 and further comprising: applying and maintaining a vacuum to the balloon through the inflation device.
Claim 13
Dependent Claim
28 words
The method of claim 9 and further comprising the step of: removing the balloon protector from the distal end of the catheter prior to use of the catheter.
Claim 14
Dependent Claim
14 words
The method of claim 7 wherien the solution contains saline and a contrast medium.
Claim 15
Dependent Claim
52 words
The method of claim 6, wherein prior to pressurizing, the method further comprises the steps of: connecting a first source of inflation solution to the fluid coupling; applying a vacuum to the balloon by use of the source while the balloon protector is in place on the balloon; and releasing the vacuum.
Claim 16
Dependent Claim
12 words
The method of claim 12 wherein the first source is a syringe.
Claim 17
Dependent Claim
13 words
The method of claim 12 wherein the first source is an inflation device.
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) | 1993-06-04 | 1993-12-04 | 1994-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-04 | 1997-12-04 | 1998-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-04 | 2001-12-04 | 2002-06-05 | $7700.00 | Window Closed / Lapsed |