Disposable two part body pricker
First Claim
1. A disposable pricker comprising a two part body and a lancet, the parts being movable with respect to one another from an initial to a second position, one part being adapted to carry the lancet with a tip at its forward end and having spring means to urge the lancet in its forwards direction, and the other part having guide means which co-operate with the forward end of the lancet to retain the lancet retracted in said one part at the initial position and as the parts are moved towards the second position, but to relinquish such retention as the second position is reached, whereby the spring means can then act to urge the lancet forwards and momentarily project its tip.
1 Assignment
0 Petitions
Accused Products
Abstract
A disposable pricker has a two part body with the parts connected by a hinge (6). A spring (10) and a lancet (1) are entered in one tubular part (7) which is then hinged to a ready position in which the leading end of the lancet, projecting from the tube (7), is confined by guide (17,22) on the other part. The tip (4) of the lancet is protected by a cap (5) which is removed before or as the two parts (7,11) are hinged closely together. This takes the leading end of the lancet clear of the guide (17) and into a passage (13) with a restricted mouth (14). The spring (10), which may be energized at the ready position or by the guide (22) wedging the lancet (1) back, can then act to shoot the lancet (1) forward to cause momentary projection of the tip (4) through the mouth (14). Retraction is assured by the spring (10) or resilient tabs (21) at the mouth.
-
Citations
12 Claims
- 1. A disposable pricker comprising a two part body and a lancet, the parts being movable with respect to one another from an initial to a second position, one part being adapted to carry the lancet with a tip at its forward end and having spring means to urge the lancet in its forwards direction, and the other part having guide means which co-operate with the forward end of the lancet to retain the lancet retracted in said one part at the initial position and as the parts are moved towards the second position, but to relinquish such retention as the second position is reached, whereby the spring means can then act to urge the lancet forwards and momentarily project its tip.
Specification