Patent ID: 9610402
Date: 2017-04-04
CPC Classifications: A61M

Claim:
1. An insertion mechanism for actuating a transcutaneous conduit assembly having a fluid conduit and a needle, wherein at least a portion of the needle is initially inside the fluid conduit, the insertion mechanism comprising: a first sliding block coupled to the fluid conduit to move the fluid conduit in an insertion direction; a second sliding block coupled to the needle to move the needle in the insertion direction and in a retraction direction, wherein movement of the second sliding block in the insertion direction pushes the first sliding block in the insertion direction; a torsion spring; and a living hinge coupled between the torsion spring and the second sliding block, wherein rotation of the torsion spring during an insertion action actuates the living hinge to move the second sliding block in the insertion direction and, thereafter, in the retraction direction, and wherein: the living hinge comprises N living hinge segments integrally formed with N−1 flexible junction segments; each of the flexible junction segments serves as a hinge for two adjacent living hinge segments; and N is an integer greater than one.