Apparatus and method for positioning and puncturing an artery and a vein
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United States of America Patent
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May 26, 1987
Issued Date -
N/A
app pub date -
May 13, 1986
filing date -
Aug 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blood flow detector produces a signal in response to pulsatile blood flow to provide means for positioning a slot in a plate in alignment with a patient's artery. Pressing the plate against the patient's skin retains the artery in alignment with the slot for puncturing. A groove in the bottom of the plate holds the artery in position while a first slot located at one end of the groove is used to guide an instrument toward the artery. A second slot adjacent the first slot is spaced a predetermined distance from the first slot so that by guiding a needle through the second slot the vein corresponding to an artery can be penetrated.
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