US5407430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravenous catheter
Assignee: THINQ TANQ Inc
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Filing: 1994-03-21
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Granted: 1995-04-18
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Expires: 2014-03-21
Abstract
Abstract An expandable intravenous catheter for the infusion of fluids into a blood vessel comprises a helically wound tube having a diameter that can be varied from a normal minimum diameter to a relatively larger diameter by axial movement of the ends of the tube relative to each other, after insertion of the catheter into the blood vessel.
Inventors
- 👤 Michael J. Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
A; A61; A61M; A61M29/00; A61M29/02; A61M25/00; A61M25/0043; A61M25/0021; A61M25/0023; A61M2025/0024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
An expandable intravenous catheter for the rapid infusion of fluids into a blood vessel comprising: a radially expandable fluid impervious tube comprising a membrane having oppositely helically wound fibers therein, said fibers being wound to a predetermined minimum diameter and having a memory so as to constantly bias said membrane to said minimum diameter, the diameter of said tube being expandable against the bias exerted by the memory of said fibers upon axial movement of the ends of the tube toward one another; a hub on one end of said tube; a rotatable spool journaled on said hub; and a plurality of cords connected, respectively, to an opposite end of said tube and to the spool on said hub, rotation of said spool effecting tensioning of said cords and movement of the opposite end of said tube toward said hub thereby to expand said catheter in direct infinitely controllable relation to the angle of rotation of said spool.
Claim 2
Dependent Claim
158 words
An expandable intravenous catheter for the rapid infusion of fluids into a blood vessel comprising: a radially expandable fluid impervious tube comprising a membrane having oppositely helically wound fibers therein, said fibers being wound to a predetermined minimum diameter and having a memory so as to constantly bias said membrane to said minimum diameter, the diameter of said tube being expandable against the bias exerted by the memory of said fibers upon axial movement of the ends of the tube toward one another; a hub on one end of said tube; a rotatable spool journaled on said hub; and a plurality of cords connected, respectively, to an opposite end of said tube and to the spool on said hub, rotation of said spool effecting tensioning of said cords and movement of the opposite end of said tube toward said hub thereby to expand said catheter in direct infinitely controllable relation to the angle of rotation of said spool.
References Cited (Backward Citations)
US3996938A
Cited
US4411655A
Cited
US4954126B1
Cited
US4655771A
Cited
US4954126A
Cited
US4655771B1
Cited
US4848342A
Cited
US4650466A
Cited
US5002560A
Cited
US5122122A
Cited
WO1991011209A1
Cited
US5158545A
Cited
US5306250A
Cited
US5273529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |