US3559643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter placement unit
Assignee: LEVOY Inc S
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Filing: 1968-06-12
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Granted: 1971-02-02
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Expires: 1988-06-12
Abstract
Abstract A catheter placement unit for the sterile insertion of a catheter into a body lumen through an incised opening in the lumen wall for parenteral infusion and other purposes, the unit having no cannulated needle, and embodying a longitudinally slit sheath with a catheter therein and an advancer connected to one end of the catheter and initially in axial alignment with said sheath to close an end thereof, the other end of said sheath being initially capped.
Inventors
- 👤 Karl A Pannier Jr
- 👤 James L Sorenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0111
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
A catheter placement unit for sterilely advancing a catheter through an incised opening in a body lumen without the aid of a needle cannula, including: a sheath having a longitudinal slit therein extending throughout its entire length; a catheter in said sheath; a straight tubular catheter advancer disposed in axial alignment with said sheath and initially closing one end of said sheath, the other end of said sheath presenting a blunt surface; a reduced neck portion of said advancer extending into said one end of said sheath to which an end of said catheter is firmly connected; a retaining head on said neck portion of larger diameter than said reduced neck and axially aligned therewith within said sheath preventing complete accidental lateral withdrawal of said portion of the advancer through the slit in said sheath during advancement of the catheter; and said advancer being tipped relatively to said sheath out of axial alignment therewith to advance the catheter, so that said reduced neck portion rides along the slit while said head remains within the sheath.
Claim 2
Dependent Claim
175 words
A catheter placement unit for sterilely advancing a catheter through an incised opening in a body lumen without the aid of a needle cannula, including: a sheath having a longitudinal slit therein extending throughout its entire length; a catheter in said sheath; a straight tubular catheter advancer disposed in axial alignment with said sheath and initially closing one end of said sheath, the other end of said sheath presenting a blunt surface; a reduced neck portion of said advancer extending into said one end of said sheath to which an end of said catheter is firmly connected; a retaining head on said neck portion of larger diameter than said reduced neck and axially aligned therewith within said sheath preventing complete accidental lateral withdrawal of said portion of the advancer through the slit in said sheath during advancement of the catheter; and said advancer being tipped relatively to said sheath out of axial alignment therewith to advance the catheter, so that said reduced neck portion rides along the slit while said head remains within the sheath.
Claim 3
Dependent Claim
28 words
The catheter placement unit of claim 1 including, a temporary cap initially closing the other end of said sheath and removabLe when the unit is put to use.
Claim 4
Dependent Claim
41 words
The catheter placement unit of claim 1 including: a tube secured at one end in the outer portion of said advancer for connection to an infusion system; and a temporary cap closing said tube until the unit is put to use.
Claim 5
Dependent Claim
20 words
The catheter placement unit of claim 1 wherein said advancer is of substantially the same outside diameter as said sheath.
Claim 6
Dependent Claim
43 words
The catheter placement unit of claim 1 wherein there is a slight visible spreading of said sheath at the slit therein caused by said advancer portion extending therein and which acts as an indicator for quickly placing the unit in the proper position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |