US3811440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter placement unit with pressure closure
Assignee: Deseret Pharmaceutical Co Inc
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Filing: 1971-08-09
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Granted: 1974-05-21
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Expires: 1991-08-09
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
2026-10-22 22:41
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0613; A61M2039/062
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A stylet catheter assembly comprising: a catheter tube having an axial bore; elongated piercing means coaxially disposed through and extending beyond the bore of the catheter tube; a hollow body affixed to the proximal end of the catheter tube through which the piercing means also coaxially passes, the hollow of the body being in fluid communication with the bore of the catheter tube 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 collapses and occludes the hollow of the body immediately upon axial removal of the piercing means from the catheter tube and the occluding hollow section, to prevent blood loss after venipuncture following piercing means removal before infusion attachment at the female fitting; means attached to the proximal end of the piercing means and sleeve means attached to said atached means and concentrically interposed between the piercing means and the occluding hollow section so that as the piercing means are removed by manual manipulation of the attached means, the sleeve means will be removed from its interposition between the occluding hollow section and the piercing means.
Claim 2
Dependent Claim
207 words
A stylet catheter assembly comprising: a catheter tube having an axial bore; elongated piercing means coaxially disposed through and extending beyond the bore of the catheter tube; a hollow body affixed to the proximal end of the catheter tube through which the piercing means also coaxially passes, the hollow of the body being in fluid communication with the bore of the catheter tube 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 collapses and occludes the hollow of the body immediately upon axial removal of the piercing means from the catheter tube and the occluding hollow section, to prevent blood loss after venipuncture following piercing means removal before infusion attachment at the female fitting; means attached to the proximal end of the piercing means and sleeve means attached to said atached means and concentrically interposed between the piercing means and the occluding hollow section so that as the piercing means are removed by manual manipulation of the attached means, the sleeve means will be removed from its interposition between the occluding hollow section and the piercing means.
Claim 3
Dependent Claim
187 words
A stylet catheter assembly comprising: a catheter tube having an axial bore; elongated piercing means coaxially disposed through and extending beyond the bore of the catheter tube; a hollow body affixed to the proximal end of the catheter tube through which the piercing means also coaxially passes, the hollow of the body being in fluid communication with the bore of the catheter tube 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 collapses and occludes the hollow of the body immediately upon axial removal of the piercing means from the catheter tube and the occluding hollow section, to prevent blood loss after venipuncture following piercing means removal before infusion attachment at the female fitting; a portion of the hollow body substantially surrounding the occluding hollow section, and the occluding hollow section comprising a projection extending through an opening in the hollow body and exposed to be manually depressed to occlude the hollow of the section as specified.
Claim 4
Dependent Claim
187 words
A stylet catheter assembly comprising: a catheter tube having an axial bore; elongated piercing means coaxially disposed through and extending beyond the bore of the catheter tube; a hollow body affixed to the proximal end of the catheter tube through which the piercing means also coaxially passes, the hollow of the body being in fluid communication with the bore of the catheter tube 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 collapses and occludes the hollow of the body immediately upon axial removal of the piercing means from the catheter tube and the occluding hollow section, to prevent blood loss after venipuncture following piercing means removal before infusion attachment at the female fitting; a portion of the hollow body substantially surrounding the occluding hollow section, and the occluding hollow section comprising a projection extending through an opening in the hollow body and exposed to be manually depressed to occlude the hollow of the section as specified.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |