US3610239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable hollow guide needle
Assignee: Illinois Tool Works Inc
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Filing: 1970-02-19
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Granted: 1971-10-05
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Expires: 1990-02-19
Abstract
Abstract A hollow guide needle for venipuncture to introduce a flexible catheter into a body vein for withdrawing or introducing fluids relative to the body, and which includes telescoped parts which may be separated into detachable sections after use and thus completely separated from the inserted catheter initially associated therewith.
Inventors
- 👤 James A Huggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:23
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/065
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
153 words
A detachable hollow guide needle assembly for insertion into a body portion and locating a flexible catheter in the body portion for withdrawing or introducing fluids relative thereto; and comprising telescope interfitting inner and outer elongate hollow members forming the guide needle assembly for receiving a flexible catheter therein and having a sharpened configuration at one end thereof for body insertion, and each said inner and outer hollow members having longitudinal apertures throughout the lengths thereof said outer member having a substantiaLly rounded U-shaped of more than 180*extent to provide an interfitting relationship between itself and the inner member when telescoped together, each of said longitudinal apertures being of a size permitting the same to clear an included catheter whereby to permit complete removal of each said member from association with the body-inserted catheter when the guide needle is withdrawn from the body portion and said members are telescopically separated from one another.
Claim 2
Dependent Claim
153 words
A detachable hollow guide needle assembly for insertion into a body portion and locating a flexible catheter in the body portion for withdrawing or introducing fluids relative thereto; and comprising telescope interfitting inner and outer elongate hollow members forming the guide needle assembly for receiving a flexible catheter therein and having a sharpened configuration at one end thereof for body insertion, and each said inner and outer hollow members having longitudinal apertures throughout the lengths thereof said outer member having a substantiaLly rounded U-shaped of more than 180*extent to provide an interfitting relationship between itself and the inner member when telescoped together, each of said longitudinal apertures being of a size permitting the same to clear an included catheter whereby to permit complete removal of each said member from association with the body-inserted catheter when the guide needle is withdrawn from the body portion and said members are telescopically separated from one another.
Claim 3
Dependent Claim
31 words
A detachable hollow guide needle assembly as claimed in claim 1, wherein the inner member is also substantially U-shaped with the longitudinal apertures of each member substantially oppositely to one another.
Claim 4
Dependent Claim
31 words
A detachable hollow guide needle assembly as claimed in claim 1, wherein the guide needle assembly includes handle means remote from the sharpened end for manipulation thereof for insertion and removal.
Claim 5
Dependent Claim
61 words
A detachable hollow guide needle assembly as claimed in claim 3, wherein the handle means includes a pair of handle members, one upstanding from each hollow member and juxtaposed for insertion and removal of the needle guide assembly and relatively axially separable from one another to relatively telescope the respective members to separated positions permitting complete removal thereof from the catheter.
Claim 6
Dependent Claim
32 words
A detachable hollow guide needle assembly as claimed in claim 1, wherein the inner and outer hollow members making up the guide needle assembly are in substantially mirror image to one another.
Claim 7
Dependent Claim
38 words
A detachable hollow guide needle assembly as claimed in claim 1, wherein the inner and outer hollow members each include an upstanding handle section with the hollow members and handle sections forming substantially mirror images of one another.
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |