REUSE PREVENTION MECHANISM

摘要

Described is a reuse prevention mechanism comprising a guidance arm (10) with a pin (9) engaged in a guidance contour (8) adapted to control movement of the guidance pin (9), and a blocking part adapted to block access to a needle (12) in a fourth position (P4) of the reuse prevention mechanism (3). The guidance contour (8) is adapted to constrict linear movement of the reuse prevention mechanism (3) in a direction (D) from a first position (P1) to a third position (P3).

主权项

1. Reuse prevention mechanism (3) for preventing reuse of an injection needle (12), the reuse prevention mechanism (3) comprising:
a guidance arm (10) with a pin (9) engaged in a guidance contour (8) adapted to control movement of the guidance pin (9), a blocking part (26), adapted to block access to a needle (12) in a fourth position (P4) of the reuse prevention mechanism (3),wherein the guidance contour (8) is adapted to constrict linear movement of the reuse prevention mechanism (3) in a direction (D) from a first position (P1) to a third position (P3), wherein the guiding contour (8) comprises a one-way feature (8.1) adapted to constrict linear movement of the reuse prevention mechanism (3) in the direction (D) from the first position (P1) to the third position (P3) and adapted to allow linear movement in an opposite direction from the third position (P3) to the first position (P1).