Patent US5525388A successfully refreshed from Google Patents.
US5525388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dilatation balloon with constant wall thickness
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1994-06-03
•
Granted: 1996-06-11
•
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 12:02
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)
US4490421A
Cited
US4692200A
Cited
US4715378A
Cited
US4848344A
Cited
US4952357A
Cited
US5035694A
Cited
US5334146A
Cited
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 |