초록 ▼

A needle unit comprises a needle mounted in a hub having a sleeve made from a deformable material and surrounding an end of the needle at a radial distance from that needle. The sleeve is designed to be snap-locked onto a connecting piece at the outlet end of a syringe by protrusions on the inner wa

A needle unit comprises a needle mounted in a hub having a sleeve made from a deformable material and surrounding an end of the needle at a radial distance from that needle. The sleeve is designed to be snap-locked onto a connecting piece at the outlet end of a syringe by protrusions on the inner wall of the sleeve engaging a circumferential recess in the outer wall of the connecting piece. It is also designed such that the locking engagement between the protrusions of this sleeve and the recess of the connecting piece is released when certain zones of the outer sleeve wall are pressed inwardly. A magazine for storing the needle unit comprises a compartment which can receive the needle unit in a plurality of rotational positions. The needle unit and magazine include a syringe/needle unit release mechanism which, in a first rotational position, does not press the release zones inwardly, thereby allowing the needle unit to lock onto the syringe, but which in a second rotational position, presses the release zones inwardly so that the needle disengages from the syringe and remains inside the magazine for disposal.

대표청구항 ▼

[ I claim:] [1.] In combination a magazine and a removable needle unit,wherein said needle unit comprises a needle mounted in a hub and a sleeve made from a deformable material surrounding an end of the needle at a distance from said needle, said sleeve including at least one snap-lock element desig

[ I claim:] [1.] In combination a magazine and a removable needle unit,wherein said needle unit comprises a needle mounted in a hub and a sleeve made from a deformable material surrounding an end of the needle at a distance from said needle, said sleeve including at least one snap-lock element designed to engage a cooperating element on the outlet end of a syringe for securing said needle unit on the syringe, and wherein said sleeve includes specific zones, spaced from said at least one snap-lock member, which when pressed radially inwardly deform said sleeve in a manner such that the locking engagement between said sleeve and the syringe outlet end is released; andwherein said magazine comprises a compartment for accommodating said needle unit in a plurality of rotational positions; and wherein said needle unit and magazine further include a syringe/needle unit release means which does not press said zones radially inwardly in a first rotational position of said needle unit, such that the needle unit may lock onto a syringe outlet end, and which presses said zones radially inwardly in a second rotational position of said needle unit, thereby causing said needle unit to release from a syringe outlet end.