US5525388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dilatation balloon with constant wall thickness
Assignee: Abbott Cardiovascular Systems Inc
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Filing: 1994-06-03
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Granted: 1996-06-11
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Expires: 2014-06-03
Abstract
Abstract A balloon for a dilatation catheter having a cylindrically shaped working section and tapered end sections which have essentially the same wall thicknesses. Upon deflation, the balloon collapses to a much smaller profile than conventional dilatation catheters. The balloon is preferably formed from a tubular parison which has a central thick walled portion. The balloon may be employed in dilatation catheters for angioplasty, prostatic urethra dilatations and other intraluminal dilatations.
Inventors
- 👤 Bruce H. Wand
- 👤 Richard J. Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:31
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139; Y10T428/1397; Y10T428/24; Y10T428/24942; Y10T428/2495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A continuous expandable thermoplastic parison for blowing a dilatation balloon which has a cylindrically shaped working section and tapered tubular sections with essentially the same wall thicknesses, the parison comprising: an elongated central tubular thick wall section of constant wall thickness which when expanded during blowing forms the cylindrically shaped working section of the balloon, a tubular section secured to each tubular of the thick wall section having decreasing wall thickness in a direction away from the thick wall section which, when expanded during blowing, forms the tapered end sections of the balloon; and a tubular thin wall open-ended section of constant thickness secured to each end of the tapered tubular sections which extend away from the thick wall section and having a constant wall thickness after the parison is blown into a balloon greater than the constant wall thickness of the tapered sections and the cylindrically shaped working tubular section.
Claim 2
Dependent Claim
151 words
A continuous expandable thermoplastic parison for blowing a dilatation balloon which has a cylindrically shaped working section and tapered tubular sections with essentially the same wall thicknesses, the parison comprising: an elongated central tubular thick wall section of constant wall thickness which when expanded during blowing forms the cylindrically shaped working section of the balloon, a tubular section secured to each tubular of the thick wall section having decreasing wall thickness in a direction away from the thick wall section which, when expanded during blowing, forms the tapered end sections of the balloon; and a tubular thin wall open-ended section of constant thickness secured to each end of the tapered tubular sections which extend away from the thick wall section and having a constant wall thickness after the parison is blown into a balloon greater than the constant wall thickness of the tapered sections and the cylindrically shaped working tubular section.
References Cited (Backward Citations)
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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) | 1999-06-11 | 1999-12-11 | 2000-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-06-11 | 2003-12-11 | 2004-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-06-11 | 2007-12-11 | 2008-06-11 | $7700.00 | Window Closed / Lapsed |