Surgery – Truss – Pad
Patent
1983-08-26
1985-05-28
Coven, Edward M.
Surgery
Truss
Pad
128766, A61B 514
Patent
active
045194025
ABSTRACT:
A syringe for collecting a sample of blood or another liquid comprises a syringe cylinder and a piston arranged displaceably therein. One or more axially extending recesses are formed in the inner wall of the syringe cylinder axially spaced from the inner end thereof. The recess or recesses contain a material which is pervious to gas and impervious to liquid, such as a hydrophobic material, a hydrophilic material with capillary effect, or a material which swells when contacted by liquid. The sample collecting chamber within the cylinder may be vented to the atmosphere by placing the piston in the recessed area of the cylinder. Arterial blood may then pass into the syringe under arterial blood pressure, and the flow of blood into the syringe is automatically stopped when the sample collecting chamber of the syringe has been filled, because blood cannot pass the liquid impervious material arranged in the recesses. The axial innermost portion of the inner cylinder wall, which is not recessed, may cooperate with the piston in a conventional manner so as to provide a suction effect within the blood collecting chamber, if desired.
REFERENCES:
patent: 3943917 (1976-03-01), Johansen
patent: 3960139 (1976-06-01), Bailey
patent: 3978846 (1976-09-01), Bailey
patent: 4065360 (1977-12-01), Kreb
patent: 4133304 (1979-01-01), Bailey
patent: 4206768 (1980-06-01), Bailey
patent: 4257426 (1981-03-01), Bailey
patent: 4266558 (1981-05-01), Akhavi
patent: 4266559 (1981-05-01), Akhavi
patent: 4299238 (1981-11-01), Baidwan et al.
patent: 4327745 (1982-05-01), Ford
patent: 4340067 (1982-07-01), Rattenborg
patent: 4340068 (1982-07-01), Kaufman
patent: 4373535 (1983-02-01), Martell
patent: 4448206 (1984-05-01), Martell
Coven Edward M.
Radiometer A/S
LandOfFree
Syringe for collecting a liquid sample does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Syringe for collecting a liquid sample, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Syringe for collecting a liquid sample will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-863664