04517978 is referenced by 292 patents and cites 7 patents.

A blood sampling instrument for drawing a few drops of blood from a finger or the like is provided wherein the sampling device consists primarily of a tubular member which conceals all of the working parts and which has a flange thereon so that it can be easily held by a patient and pressed against a finger while releasing a trigger mechanism to actuate a plunger within the instrument.

Title
Blood sampling instrument
Application Number
6/442600
Publication Number
4517978
Application Date
January 13, 1983
Publication Date
May 21, 1985
Inventor
John D Harding
228 Fern St., Santa Cruz, 95060
CA, US
Paul D Levin
1595 Soquel Dr., Santa Cruz, 95065
CA, US
Agent
Robert G Slick
IPC
A61B 10/00
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