04449529 is referenced by 284 patents and cites 10 patents.

An automatic retractable lancet assembly includes a housing with a sharp-pointed lancet movably mounted therein. A slidable plunger is mounted in the housing in the end thereof opposite from the lancet for loading the assembly prior to use. An actuating mechanism releases the lancet for outward movement from the housing. After this outward movement is completed, the actuator elements become dissociated from further movement of the lancet. Subsequently, the lancet is automatically retracted back inside the housing by virtue of a spring element.

Title
Automatic retractable lancet assembly
Application Number
6/322345
Publication Number
4449529
Application Date
November 18, 1981
Publication Date
May 22, 1984
Inventor
Edward L Nugent
N. Caldwell
NJ, US
James A Burns
Elizabeth
NJ, US
Agent
Robert P Grindle
Assignee
Becton Dickinson and Company
NJ, US
IPC
A61B 17/34
View Original Source