US3645253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument for the withdrawal of body fluids
Assignee: Organon NV
•
Filing: 1969-11-04
•
Granted: 1972-02-29
•
Expires: 1989-11-04
Abstract
Abstract An improved syringe for the withdrawal of body fluids, especially adapted for transport and storage as well as for the centrifugation of the fluid samples, preferably blood samples, comprises a tube having a hermetically end, the closure of which, being a stopper or cap, is entirely or partly made of resilient material, through which a needle, preferably of stainless steel, extends, which ends in or is tightly pressured against a piston mounted in the tube. Said piston is preferably provided with a concave at the side where the needle ends. Thus a hermetically sealed compartment is obtained through which the needle extends. Said Compartment is suitable for aseptic storage of auxiliaries such as anticoagulants and/or antiseptics.
Inventors
- 👤 Bastiaan Cornelis Goverde
- 👤 Rijkent Hendrik Drost
- 👤 Bernardus Louwerens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:03
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150374; A61B5/150534; A61B5/15058; A61B5/150595; A61B5/150015; A61B5/15003; A61B5/150206; A61B5/150236; A61B5/150244; A61B5/150251; A61B5/150351; A61B5/150381; A61B5/150389; A61B5/150473; A61B5/150496; A61B5/150694; A61B5/150717; A61B5/150755; A61B5/153; B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; B01L3/50825
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
An instrument for the withdrawal of body fluids comprising a tube having an open end and a hermetically closed opposite end, the interior of said tube being at substantially atmospheric pressure, a closure member at the closed end of the tube providing said hermetic seal which is at least partly made of resilient material through which material a hollow needle extends which terminates in and is sealed by a piston slidably mounted in the interior of said tube provide a hermetically sealed compartment between said closure member and said piston, said compartment being penetrated by said needle, said piston being provided with means for moving the piston away from the closed end of the tube.
Claim 2
Dependent Claim
115 words
An instrument for the withdrawal of body fluids comprising a tube having an open end and a hermetically closed opposite end, the interior of said tube being at substantially atmospheric pressure, a closure member at the closed end of the tube providing said hermetic seal which is at least partly made of resilient material through which material a hollow needle extends which terminates in and is sealed by a piston slidably mounted in the interior of said tube provide a hermetically sealed compartment between said closure member and said piston, said compartment being penetrated by said needle, said piston being provided with means for moving the piston away from the closed end of the tube.
Claim 3
Dependent Claim
19 words
The instrument of claim 1, in which said closure has a concave communicating with the interior of the tube.
Claim 4
Dependent Claim
23 words
The instrument of claim 1, in which said piston possesses a concave portion at the side where the needle terminates in the piston.
Claim 5
Dependent Claim
18 words
The instrument of claim 1, in which said piston is fitted with means for fastening a piston rod.
Claim 6
Dependent Claim
34 words
The instrument of claim 1, in which the open end of said tube is closed with a cap fitted in the middle with a film which can easily be penetrated by a piston rod.
Claim 7
Dependent Claim
14 words
The instrument of claim 1 which includes a piston rod attached to said piston.
Claim 8
Dependent Claim
21 words
The instrument of claim 1 in which said needle is provided with a guard to prevent further penetration into said tube.
References Cited (Backward Citations)
US3126004A
Cited
US2431406A
Cited
US2693183A
Cited
US3162195A
Cited
US3200813A
Cited
US3366103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |