Patent ID: 7282058

Claim:
A single-use disposable lancet device comprising: a body having an upper portion and a lower portion, a trigger carried by said upper portion of said body, said trigger movable between a first raised position wherein the device is cocked and a second depressed position wherein the device is fired, a needle assembly movable between a cocked position and a striking position, a drive spring for moving said needle assembly from its cocked position to its striking position, trigger bar means having a first position wherein said trigger bar means holds said needle assembly in its cocked position and having a second position wherein said needle assembly is moved to its striking position by said drive spring, wherein said trigger bar means is integrally molded as a part of said lower body portion, blade means carried by said trigger, and as said trigger moves from its first position to its second position, said blade means deforms a portion of said trigger bar means whereby said deformed trigger bar means releases said needle assembly from its cocked position and said deformed trigger bar means is thereafter not capable of holding said needle assembly in its cocked position, thereby limiting the device to a single use.