Patent US3566868A successfully refreshed from Google Patents.
US3566868A
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US
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Parenteral liquid administration set with injection site and method of making same
Assignee: American Hospital Supply Corp
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Filing: 1968-08-26
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Granted: 1971-03-02
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Expires: 1988-08-26
Abstract
Abstract An administration set in the form of a tubular conduit for draining blood, dextrose solutions, et. from a container to a patient''s vein. This administration set has an improved injection site made of a rubber tube length which has been turned inside out and which has an inner wall surface in a constant state of annular compression. The rubber tube length quickly and tightly reseals a puncture hole made by a needle of a hypodermic syringe used to inject additive medication into the administration set.
Inventors
- 👤 Victor H Baptist
- 👤 Mitchell B Brodkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
17 words
The structure as claimed in claim 1 in which the wall of said elastomeric tube is everted.
Claim 2
Dependent Claim
93 words
The structure as claimed in claim 1 in which said elastomeric tube is a one piece element and includes an inner surface in direct communication with conduit for direct communication with the parenteral fluid being administered. 4. The structure as claimed in claim 1 in which said conduit is of a thermoplastic material and the elastomeric tube length is telescopically engaged over the outer surface of said tube, the thermoplastic conduit substantially preventing the parenteral fluid from contacting the inner surface of said elastomeric tube length whereby blood platelets can be readily administered.
Claim 3
Dependent Claim
14 words
The structure as claimed in claim 1 in which said elastomeric tube is rubber.
Claim 4
Dependent Claim
16 words
The structure as claimed in claim 1 in which said conduit comprises flexible polyvinyl chloride material.
Claim 5
Independent Claim
117 words
A method of forming a parenteral liquid administration set with an injection site, said method comprising the steps of: forming a thermoplastic tubular conduit with a bore for carrying parenteral liquids; forming a length of pierceable, resealable, elastomeric tube; everting said elastomeric tube length so that its outer wall surface becomes its inner wall surface defining a bore, said inner wall surface being in a constant state of annular radial compression and said outer wall being in a constant state of annular tension; and attaching said everted elastomeric tube length to the thermoplastic tubular conduit, whereby additive medication can be injected through outer and inner wall surfaces of the everted elastomeric tube length and into its bore.
Claim 6
Dependent Claim
44 words
A method of forming a parential liquid administration set as set forth in claim 7 wherein the method includes the step of telescoping the everted elastomeric tube over the thermoplastic tubular conduit, whereby the thermoplastic conduit extends completely through the everted elastomeric tube''s bore.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |