Surgery – Diagnostic testing – Liquid collection
Patent
1995-11-20
1998-06-02
Hindenburg, Max
Surgery
Diagnostic testing
Liquid collection
A61B 500
Patent
active
057591601
ABSTRACT:
An apparatus for sampling blood through an intravenous or intraarterial tube which does not interfere with normal operation of an infusion operation or a direct pressure monitoring operation. A needleless sampling site at which fluid can be removed is connected to the tube. A chamber is provided which is connected to the tube such that fluid can be interchanged between the tube and the chamber. A plunger is provided for drawing the fluid from the tube into the chamber and for expelling the fluid from the chamber into the tube. In its normal position, the plunger blocks the interconnection between the tube and the chamber. When in its sampling position, the plunger creates a vacuum in the chamber causing the fluid in the tube to be aspirated into the chamber. The aspirating action causes fluid in the patient to be drawn up to the sampling site. An actuator, which can be operated by a single hand of a medical practitioner, imparts an appropriate feel to the system operation. A practitioner can carefully control the aspiration and expulsion operations of the system due to the resistance provided against the practitioner's hand movements and configuration of the body and the actuator means. The movement of the plunger is such that fluid is selectively drawn into and expelled from the chamber.
REFERENCES:
patent: 986263 (1911-03-01), Bevill
patent: 2357238 (1944-08-01), Trimble
patent: 2847996 (1958-08-01), Cohen et al.
patent: 3291151 (1966-12-01), Loken
patent: 3344785 (1967-10-01), Hamilton
patent: 4013064 (1977-03-01), Patel et al.
patent: 4051852 (1977-10-01), Villari
patent: 4105500 (1978-08-01), Libman et al.
patent: 4114617 (1978-09-01), Turner et al.
patent: 4214779 (1980-07-01), Losell
patent: 4219021 (1980-08-01), Fink
patent: 4263922 (1981-04-01), White
patent: 4289648 (1981-09-01), Hoskins et al.
patent: 4316473 (1982-02-01), Beskin
patent: 4335717 (1982-06-01), Bujan et al.
patent: 4341224 (1982-07-01), Stevens
patent: 4364383 (1982-12-01), Vcelka
patent: 4370987 (1983-02-01), Bazell et al.
patent: 4385637 (1983-05-01), Akhavi
patent: 4457753 (1984-07-01), Pastrone
patent: 4533348 (1985-08-01), Wolfe et al.
patent: 4634427 (1987-01-01), Hannula et al.
patent: 4673386 (1987-06-01), Gordon
patent: 4763648 (1988-08-01), Wyatt
patent: 4796644 (1989-01-01), Polaschegg
patent: 4838855 (1989-06-01), Lynn
patent: 5363860 (1994-11-01), Nakao et al.
patent: 5374401 (1994-12-01), von Berg
"Effect of Sample Dilutions on Arterial Blood Gas Determinations", F'Chard C. Dennis, M.D., et al., Critical Care Medicine, Dec. 1985, pp. 1067-1068.
"Errors in Intraoperative Hematocrit Determination", Denis L. Bourke, M.D., Anesthesiology, vol. 45 No. 3, Sep. 1976, pp. 357-359.
"Stopcock Contamination in an ICU", Barbara J. McArthur, et al., American Journal of Nursing, vol. 75, No. 1, Jan. 1975, pp. 96-97.
"Stopcock: Bacterial Contamination in Invasive Monitoring Systems", Jo Marie Walrath, R.N., et al. Heart & Lung, vol. 8, No. 1 (1979), pp. 100-104.
"Phlebotomy for Diagnostic Laboratory Tests in Adults", B.R. Smoller, M.D. and M.S. Kruskall, M.D., The New England Journal of Medicine, vol. 314, No. 19 (1986) pp. 1233-1235.
"Prospective Randomized Evaluation of Two Methods of Drawing Coagulation Studies from Heparinized Arterial Lines", K. Cannon, et al., Heart & Lung, vol. 14, No. 4 (1985) pp. 392-395.
"Implantable Vascular Access Devices", V. Winters, Oncology Nursing Forum, vol. 11, No. 6, (1984) pp. 25-30.
Neese Jon
Shirley Ben D.
Hindenburg Max
Utah Medical Products, Inc.
Wingood Pamela L.
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