| 摘要 |
A syringe includes a needle assembly at least partially secured within a barrel of the syringe, the needle assembly including a needle stem, a resilient member biasing the needle stem toward a proximal end opening of the barrel, a needle holder connectable to the needle stem during assembly of the syringe and that is further securable to a needle, and a cap that is dimensioned to surround the needle secured to the needle holder and a portion of the needle holder during assembly of the needle holder with the needle stem. In another embodiment, a syringe includes a needle assembly including a section secured within the barrel, the needle assembly including a needle holder, a resilient member biasing the needle holder toward a proximal end opening of the barrel, and a retaining member releasably secured to the needle holder, where the retaining member includes a first material that connects the retaining member to the needle holder and a second material that engages an interior wall section of the barrel, the second material having a hardness or durometer value that is less than that of the first material.
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