| 摘要 |
<p>To retrofit a conventional needle hub assembly with a needle protection housing(36), a sleeve (2) having a collar (30) rotatably fitted thereabout is fittedto the needle hub (28). The sleeve (2) has a proximal portion and a distal portion.The proximal portion has a diameter that is dimensioned to fit over the needlehub (28) while the distal portion has a diameter that allows the needle cap (20)of the needle hub assembly to be inserted thereinto so as to be frictionally coupledto the needle hub (28). There are a plurality of flanges or ears extending at theproximal end of the proximal portion. These flanges are configured to overliethe flanges formed at the base of the needle hub (28) used to mate with the luer (66)of a syringe (64). When the needle hub assembly is threadingly mated to the luer(66) of the syringe (64), the sleeve (2), along with the collar (30) mounted thereaboutand to which the needle protection housing (36) is attached, is also mated to theluer (66). As a consequence , a conventional needle hub assembly could be retrofittedwith the inventive sleeve assembly without causing any dead space which may unnecessarilywaste to be dispensed medicament and/or collected patient fluid.</p> |
