Injection device with syringe carrier engagement with cap

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/32 (2006.01) A61M 5/20 (2006.01)

Patent

CA 2653311

An injection device (110) is described having a housing (112) that receives a syringe (114) having a needle (118), wherein the syringe is supported in a syringe carrier (150). The injection device (110) has a removable cap (190). The syringe (114) and syringe carrier (150) are biased by a return spring (126) from an extended position in which the needle (118) extends from the housing (112) through an exit aperture (128) to a retracted position in which it does not. The syringe carrier (150) abuts a surface inside the removable cap (190) which prevents forward movement of the syringe carrier (150) when the cap is in place. The injection device is less prone to failure than prior art devices and is safer should failure occur.

L'invention décrit un dispositif d'injection (110) comportant un boîtier (112) qui reçoit une seringue (114) dotée d'une aiguille (118), la seringue étant supportée par un support de seringue (150). Le dispositif d'injection (110) est équipé d'un capuchon amovible (190). La seringue (114) et le support de seringue (150) sont sollicités par un ressort de retour (126) à partir d'une position étendue dans laquelle l'aiguille (118) s'étend à partir du boîtier (112) à travers une ouverture de sortie (128) jusqu'à une position rétractée dans laquelle elle ne s'étend pas. Le support de seringue (150) vient en butée contre une surface à l'intérieur du capuchon amovible (190) qui empêche un mouvement vers l'avant du support de seringue (150) lorsque le capuchon est en place. Le dispositif d'injection est moins susceptible d'une défaillance que les dispositifs de l'état antérieur de la technique et est plus sûr en cas de défaillance.

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