US3766916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Y stylet catheter placement assembly
Assignee: Deseret Pharmaceutical Co Inc
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Filing: 1972-07-07
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Granted: 1973-10-23
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Expires: 1992-07-07
Abstract
Abstract Catheter placement units wherein the catheter tube is fixed to a generally Y-shaped transparent central unit. The stylet needle is provided with a tab to facilitate manual manipulation of the placement unit and extends through a bore in one arm of the central unit and through the catheter tue. The needle is formed with an opening adjacent the proximal end thereof which communicates the bore of the needle with the bore of the other arm of the central unit to provide visual indication of blood flashback indicative of successful venipuncture.
Inventors
- 👤 S Smith
- 👤 H Moorehead
- 👤 G Reading
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:18
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0613; A61M25/00; A61M25/01; A61M25/06; A61M25/0693; A61M2039/062
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
158 words
A catheter placement unit comprising: a hollow catheter tube; a bifurcated central unit connected to the proximal end of the catheter tube and having an axial bore extending the full length of the central unit, the axial bore joining and aligned with the hollow of the catheter tube, and an angularly disposed branch having a bore intersecting the axial bore; a self-sealing end closure closing the proximal end of the axial bore; piercing means extending through the end closure, the axial bore and the hollow of the catheter tube; venipuncture handle means joining the piercing means proximal of the end closure, the handle means comprising a pair of oppositely disposed forwardly projecting spaced fingers, said fingers converging in a forward direction and which frictionally engage and bite into the exterior surface of the central unit to resist rearward displacement of the piercing means and the handle means during venipuncture while allowing removal of the piercing means after venipuncture.
Claim 2
Dependent Claim
158 words
A catheter placement unit comprising: a hollow catheter tube; a bifurcated central unit connected to the proximal end of the catheter tube and having an axial bore extending the full length of the central unit, the axial bore joining and aligned with the hollow of the catheter tube, and an angularly disposed branch having a bore intersecting the axial bore; a self-sealing end closure closing the proximal end of the axial bore; piercing means extending through the end closure, the axial bore and the hollow of the catheter tube; venipuncture handle means joining the piercing means proximal of the end closure, the handle means comprising a pair of oppositely disposed forwardly projecting spaced fingers, said fingers converging in a forward direction and which frictionally engage and bite into the exterior surface of the central unit to resist rearward displacement of the piercing means and the handle means during venipuncture while allowing removal of the piercing means after venipuncture.
Claim 3
Dependent Claim
150 words
A catheter placement unit comprising: a hollow catheter tube; a bifurcated central unit connected to the proximal end of the catheter tube and having an axial portion with a central throughbore and an angularly disposed side arm with a bore connected to the axial bore, said axial bore communicating with the interior of said catheter tube; a self-sealing end closure extending at least in part into and closing the proximal end of the axial portion of the central unit; piercing means extending through the end closure, the bore of said axial portion and the hollow of the catheter tube, the piercing means having tab means fixedly secured to the proximal end of the piercing means outside of the end closure, which tab means comprise a manually manipulable handle; and shim means engaging the portion of said end closure within the axial bore and urging said end closure into self-sealing relation.
Claim 4
Dependent Claim
150 words
A catheter placement unit comprising: a hollow catheter tube; a bifurcated central unit connected to the proximal end of the catheter tube and having an axial portion with a central throughbore and an angularly disposed side arm with a bore connected to the axial bore, said axial bore communicating with the interior of said catheter tube; a self-sealing end closure extending at least in part into and closing the proximal end of the axial portion of the central unit; piercing means extending through the end closure, the bore of said axial portion and the hollow of the catheter tube, the piercing means having tab means fixedly secured to the proximal end of the piercing means outside of the end closure, which tab means comprise a manually manipulable handle; and shim means engaging the portion of said end closure within the axial bore and urging said end closure into self-sealing relation.
Claim 5
Dependent Claim
14 words
The device of claim 2 wherein: said central unit is formed of transparent material.
Claim 6
Dependent Claim
55 words
The device of claim 2 wherein: said piercing means comprises a needle comprising an opening which communicates the bore of said needle with the bore of one of the arms of said central unit when said needle is positioned extending through the bore of the other arm of said central unit and through said catheter.
Claim 7
Dependent Claim
27 words
The catheter placement unit of claim 2 wherein said tab means comprises a pair of forwardly projecting fingers which frictionally engage the exterior of said central unit.
Claim 8
Dependent Claim
43 words
The device of claim 2 wherein: said shim means is disposed within the bore of said one of said arms and is formed with a pair of jaws closable to engage and squeeze the portion of said end closure within said one arm.
Claim 9
Dependent Claim
20 words
The device of claim 6 wherein: said jaws are each formed with an exterior ridge adjacent the proximal end thereof.
Claim 10
Dependent Claim
38 words
The device of claim 7 wherein: said ridge is normally positioned external to the bore of said one of said arms and is displaceable into said bore to cause said jaws to force said plug into sealing relation.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |