Abstract: The connecting end of the hypodermic needle is so designed that it can be attached to and then disconnected from the tip of an injection instrument by pressure, that is, an axial tractional force exerted between the said needle and the said injection instrument. The extraction device has an opening delimited by locking elements forming one piece with elastic pieces so as to allow its diameter to vary between a minimum diameter and a maximum diameter at least equal to the diameter of the said connecting end and at least one piece associated with the said locking elements for the purpose of converting an axial force exerted on the said piece into at least one radial component capable of being applied to the said elastic pieces so as to deform them radially in order to increase the diameter of the said opening when axial pressure is exerted by the said connecting end.

Abstract: The connecting end of this storage container for at least one hypodermic needle has connectors complementary to the connectors on the tip of an injection instrument, one of the connectors having radial elasticity and devices for converting an axial force exerted between the needle and the injection instrument into at least one radial component which can deform the elastic connectors. The container has a housing fore the needle designed to hold this needle in a given position and an opening giving access to the housing. The shape and dimensions of the exterior wall bounding the housing are selected to create with the needle an ergonomic positioning and/or handling interface so as to facilitate the connection of the complementary connectors of the needle and the tip, respectively.

Abstract: The connecting end of this storage container for at least one hypodermic needle has connectors complementary to the connectors on the tip of an injection instrument, one of the connectors having radial elasticity and devices for converting an axial force exerted between the needle and the injection instrument into at least one radial component which can deform the elastic connectors. The container has a housing fore the needle designed to hold this needle in a given position and an opening giving access to the housing. The shape and dimensions of the exterior wall bounding the housing are selected to create with the needle an ergonomic positioning and/or handling interface so as to facilitate the connection of the complementary connectors of the needle and the tip, respectively.

Abstract: The connecting end of the hypodermic needle is so designed that it can be attached to and then disconnected from the tip of an injection instrument by pressure, that is, an axial tractional force exerted between the said needle and the said injection instrument. The extraction device has an opening delimited by locking elements forming one piece with elastic pieces so as to allow its diameter to vary between a minimum diameter and a maximum diameter at least equal to the diameter of the said connecting end and at least one piece associated with the said locking elements for the purpose of converting an axial force exerted on the said piece into at least one radial component capable of being applied to the said elastic pieces so as to deform them radially in order to increase the diameter of the said opening when axial pressure is exerted by the said connecting end.