Patent US3774606A successfully refreshed from Google Patents.
US3774606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable needle hub
Assignee: CR Bard Inc
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Filing: 1972-03-07
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Granted: 1973-11-27
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Expires: 1992-03-07
Abstract
Abstract An intravenous needle and catheter (or cannula) combination wherein the needle passes through the catheter, when assembled for venipuncture, the needle hub being formed distally in a plurality of steps adapted to support Luer lugs on the catheter hub in different positions, permitting determination of the distance the needle bevel tip projects beyond the catheter tip.
Inventors
- 👤 W Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:38
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0606
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
135 words
An intravenous needle and catheter set wherein a needle element is located within a catheter element with its point projecting from the distal end of the catheter element, comprising a needle fixed in a needle hub and a catheter fixed to a catheter hub, said needle hub being provided with a plurality of axially-facing surfaces disposed at different distances from the distal end of the needle and the catheter hub being proVided with at least one complimentary axially-facing surface disposed at a given distance from the distal end of the catheter and adapted to bear selectively against any one of said first-named surfaces, whereby the relative positions of said respective distal ends may be determined, the needle hub being provided with a distally-facing annular channel and said plurality of surfaces being disposed in said channel.
Claim 2
Dependent Claim
135 words
An intravenous needle and catheter set wherein a needle element is located within a catheter element with its point projecting from the distal end of the catheter element, comprising a needle fixed in a needle hub and a catheter fixed to a catheter hub, said needle hub being provided with a plurality of axially-facing surfaces disposed at different distances from the distal end of the needle and the catheter hub being proVided with at least one complimentary axially-facing surface disposed at a given distance from the distal end of the catheter and adapted to bear selectively against any one of said first-named surfaces, whereby the relative positions of said respective distal ends may be determined, the needle hub being provided with a distally-facing annular channel and said plurality of surfaces being disposed in said channel.
Claim 3
Dependent Claim
42 words
An intravenous needle and catheter set according to claim 1 wherein the catheter hub is provided with a pair of diametrically oppositely disposed lugs each having a proximally-facing surface extending through an arc no greater than each of said plurality of surfaces.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |