David M Levin

US Patent:

7282058, Oct 16, 2007

Filed:

Oct 24, 2003

Appl. No.:

10/693128

Inventors:

Paul D. Levin - Santa Cruz CA, US
Robby Jay Moore - Auburn CA, US
David M. Levin - Santa Cruz CA, US
Ted Ackley - Felton CA, US
John D. Harding - Ben Lomond CA, US

Assignee:

Palco Labs, Inc. - Scotts Valley CA

International Classification:

A61B 17/3209
A61B 5/151

US Classification:

606181, 606167, 604157, 600573

Abstract:

A single-use lancet device is provided for drawing capillary blood samples. The device includes a body having an upper portion and a lower portion and a trigger carried by the upper portion of the body. The trigger is movable between a first raised position wherein the device is cocked and a second depressed position wherein the device is fired. A needle assembly is provided which is movable between a cocked position and a striking position. A free-floating drive spring is provided for moving the needle assembly from its cocked position to its striking position. A bounceback spring is integrally molded with the needle assembly and includes a pair of generally V-shaped spring arms. A trigger bar has a first position wherein it holds the needle assembly in its cocked position, and the trigger bar has a second position wherein it allows the needle assembly to move to its striking position as the drive spring expands. The trigger carries a pair of guillotine-type blades which sever the trigger bar and thereby releases the needle assembly from its cocked position. Alternate trigger bars are provided which may be deformed rather than severed.