Patent US4007738A successfully refreshed from Google Patents.
US4007738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for allowing blood bags to communicate with each other
Assignee: Terumo Corp
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Filing: 1975-07-01
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Granted: 1977-02-15
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Expires: 1995-07-01
Abstract
Abstract Disclosed is a mechanism for allowing blood bags to communicate with each other comprising a connection pipe, a connection tube fitted into and bonded to said connection pipe, for connecting a first blood bag to a second blood bag, and a hard plastic-made communication pipe whose one end on the side of said first blood bag is hermetically sealed and the other end of which is fitted into and bonded to said connection tube and which is formed with a cutting-off small thickness section at its intermediate portion. The communication between said first and second blood bags is rendered effective by cutting off said communication pipe at said small thickness section.
Inventors
- 👤 Motohiro Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:22
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/221; A61J; A61J1/00; A61J1/05; A61J1/10; A61J1/14; A61J1/1475
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
138 words
A mechanism for allowing blood bags to communicate with each other, comprising: a flexible connection pipe having first and second ends, said first end being connected to and communicated with a first blood bag; a connection tube having a first end connected to and communicated with a second blood bag and a second end which is inserted into, and secured to, the second end of said connection pipe; a communication pipe of hard plastic material having an open end portion and a sealed end portion, said communication pipe being positioned within said connection pipe; and a small thickness section formed in the communication pipe between the sealed end portion and the open end portion, whereby the communication between the first and second blood bags is rendered effective by breaking apart the communication pipe at the small thickness section.
Claim 2
Dependent Claim
138 words
A mechanism for allowing blood bags to communicate with each other, comprising: a flexible connection pipe having first and second ends, said first end being connected to and communicated with a first blood bag; a connection tube having a first end connected to and communicated with a second blood bag and a second end which is inserted into, and secured to, the second end of said connection pipe; a communication pipe of hard plastic material having an open end portion and a sealed end portion, said communication pipe being positioned within said connection pipe; and a small thickness section formed in the communication pipe between the sealed end portion and the open end portion, whereby the communication between the first and second blood bags is rendered effective by breaking apart the communication pipe at the small thickness section.
Claim 3
Dependent Claim
27 words
The mechanism according to claim 1 wherein the open end of the communication pipe is inserted into, and secured to, the second end of said connection tube.
Claim 4
Dependent Claim
46 words
The mechanism according to claim 2 wherein an annular projection is formed on the inner circumference of said connection pipe adjacent said first end so as to prevent any free piece that is formed by breaking of the communication pipe from entering the first blood bag.
Claim 5
Dependent Claim
15 words
A mechanism according to claim 2, said communication pipe is formed of hard polyvinyl chloride.
Claim 6
Dependent Claim
21 words
A mechanism according to claim 4, wherein said small thickness section formed in said communication pipe is constituted by a notch.
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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |