Autoinjector with means for preventing reuse and disconnection of said first and second body portions after operation

摘要

An autoinjector has a body portion (10, 12) containing a syringe (13) or cartridge with a needle at its forward end, the autoinjector having a drive arrangement (60 . . . ) for effecting operation of the autoinjector and including a drive element that moves from a first position to a second position during the operation, the body including a first (10) and a second body portion (12) connected together by a snap fit arrangement including a resiliently moveable latch finger (138) on one of the body portions that cooperates with a latch surface (142) on the other thereof to hold the two portions connected, wherein the drive element in the second position (60) limits or prevents resilient movement of the moveable latch finger (142), thereby preventing disconnection of the first and second body portions after operation.

主权项

1. An autoinjector having a body portion containing a syringe or cartridge with a needle at its forward end, the autoinjector having a drive arrangement for effecting operation of said autoinjector and including a drive element that moves from a first position to a second position during said operation, said body including a first and a second body portion connected together by a snap fit arrangement including a resiliently moveable latch finger on one of said body portions that cooperates with a latch surface on the other thereof to hold the two portions connected, wherein said drive element in said second position limits or prevents resilient movement of said moveable latch finger, thereby preventing disconnection of said first and second body portions after operation.