Patent ID: 7662111

Claim:
A vacuum assisted auto-lancing device, comprising: a housing having a body, the body being partitioned into a first chamber and a second chamber by a first partition plate, with a lever hole provided on an outer periphery of the first chamber at a position adjacent to a first end of the first chamber, and a locking protrusion vertically protruding from a position around the lever hole; an actuating lever, comprising: an actuating switch seated on the lever hole, and having at a lower portion thereof first and second actuating steps which pass through the lever hole; a switch cap covering the actuating switch; and a switch cover locking the actuating switch and the switch cap to a predetermined position of the body; a holding unit, comprising: a first stem coupled at a first end thereof to an inner periphery of the first chamber, a second end of the first stein being exposed to an outside of the first chamber; a second stem integrally coupled to the first end of the first stem and placed in the first chamber; and a stem cap to close a first end of the second stem; a trigger comprising: a first trigger unit disposed at a position in the first and second stems, and activated by a first actuating step, with a lancet holder holding a lancet and being secured to an end of the first trigger unit which extends to the first stem; and a second trigger unit rotatably mounted to cover both sides and a top of the second stem, and activated by a second actuating step; a blood collecting unit, comprising: an adjusting screw positioned at the first end of the first chamber and rotatably secured to the first stem; an adjusting slider fastened to the adjusting screw; and an end cap mounted to the first stem; and a vacuum unit, comprising: a plunger placed to reciprocate in the second chamber, and selectively passing through the first partition plate to engage with the second trigger unit; and a body cap to lock the plunger to the second chamber.