Patent US3856010A successfully refreshed from Google Patents.
US3856010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter placement unit with pressure closure
Assignee: Deseret Pharmaceutical Co Inc
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Filing: 1973-09-07
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Granted: 1974-12-24
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Expires: 1993-09-07
Abstract
Abstract A catheter placement unit comprising an adapter assembly for coupling a catheter tube to a fluid infusion unit and including resilient means which are manually compressable to control the flow of fluid through the catheter tube. Two forms of the catheter placement unit are disclosed.
Inventors
- 👤 H Moorehead
- 👤 G Reading
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:21
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0613; A61M2039/062
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
174 words
A stylet catheter assembly comprising: a flexible catheter tube having an axial bore; elongated piercing means coaxially disposed within the bore and extending beyond the length of the catheter tube in the initial assembled condition; a hollow body affixed to the proximal end of the catheter tube through which the piercing means also coaxially passes in the initial assembled condition, the hollow of the body being in fluid communication with the bore of the catheter tube upon axial removal of the piercing means and the proximal end of the hollow body comprising an infusion female fitting; the hollow body comprising a yieldable occluding hollow section with memory forward of the female fitting which upon being manually squeezed against the piercing means fully transversely collapses upon itself and thereby occludes the hollow of the body under said squeezing force immediately upon said axial removal of the piercing means from the catheter tube and from the occluding hollow section, to prevent blood loss after venipuncture following piercing means removal before infusion attachment at the female fitting.
Claim 2
Dependent Claim
174 words
A stylet catheter assembly comprising: a flexible catheter tube having an axial bore; elongated piercing means coaxially disposed within the bore and extending beyond the length of the catheter tube in the initial assembled condition; a hollow body affixed to the proximal end of the catheter tube through which the piercing means also coaxially passes in the initial assembled condition, the hollow of the body being in fluid communication with the bore of the catheter tube upon axial removal of the piercing means and the proximal end of the hollow body comprising an infusion female fitting; the hollow body comprising a yieldable occluding hollow section with memory forward of the female fitting which upon being manually squeezed against the piercing means fully transversely collapses upon itself and thereby occludes the hollow of the body under said squeezing force immediately upon said axial removal of the piercing means from the catheter tube and from the occluding hollow section, to prevent blood loss after venipuncture following piercing means removal before infusion attachment at the female fitting.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein said occluding hollow section is generally cylindrical.
Claim 4
Dependent Claim
99 words
A stylet catheter assembly comprising: a pliable catheter tube having an axial bore; a needle disposed inside and extending beyond the distal end of the catheter tube in the assembled condition; hollow compressible occluding means with memory non-removably joined to the proximal end of the catheter tube through which the needle also passes, the hollow of the occluding means being directly open to the catheter bore, fluid flow being occluded by transverse manual compression of the occluding means upon removal of the needle from its assembled coaxial position within the catheter tube and the hollow of the occluding means.--
Claim 5
Dependent Claim
99 words
A stylet catheter assembly comprising: a pliable catheter tube having an axial bore; a needle disposed inside and extending beyond the distal end of the catheter tube in the assembled condition; hollow compressible occluding means with memory non-removably joined to the proximal end of the catheter tube through which the needle also passes, the hollow of the occluding means being directly open to the catheter bore, fluid flow being occluded by transverse manual compression of the occluding means upon removal of the needle from its assembled coaxial position within the catheter tube and the hollow of the occluding means.--
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |