| 摘要 |
<p>A syringe (10) for use with collapsible ampoules (20) pre-filled with a liquid medicament includes a body (12) that forms an open receptacle for the ampoule and a handle (14) attached by a hinge (16) to one end of the body so as to be in opposed relationship with the ampoule. The handle (14) carries a compression pad (22) on its underside, so that the handle can be squeezed toward the body to compress the ampoule. The body (12) has a fitting (30) at its proximal end for the attachment of a double-ended disposable needle (36). When the needle is attached to the fitting, the distal end (40) of the needle passes through the fitting and punctures the ampoule, allowing the contents of the ampoule to flow into the needle as the ampoule is compressed. In one embodiment, the handle is hinged to the proximal end of the body; in a second embodiment, it is hinged to the distal end. In both embodiments, the pad is maintained in substantially parallel alignment with the longitudinal axis of the body. A lever (42, 44) is advantageously provided on the body which can be selectively moved into engagement with the handle to lock the handle into a pre-selected position with respect to the body.</p> |
