| 摘要 |
A safe auto-needle device for injection, comprising: • a main housing; • a syringe-support for receiving a disposable prefilled syringe; said syringe comprises: a piston; a proximal end; and a distal end terminating in a needle covered by a needle sheath (NS); • a drive mechanism for advancing said syringe-support distally towards an injection site; • a tubular needle shield; moveable from: a needle covering position, to partially exposed, to needle irreversibly concealed; • said generally tubular needle shield comprising a distal end for contacting an injection site, and a proximal end; • a spring urging distal movement of said needle shield; and said needle shield comprising a spring seat; • an NS remover, designed to mate with and irreversibly grip said NS, for removal of said NS prior to injection; • a locking mechanism preventing premature advancement of said needle; • a plunger rod for engaging said piston, wherein depressing of said plunger is manually controllable; wherein in use of said device, said NS remover is removed; said distal end of said needle shield is pressed upon an injection site, releasing said locking mechanism, and driving said syringe-support and said syringe, distally until needle penetration; and upon depressing of said plunger, a medicament may be injected. The invention additionally provides a novel two-component NS remover. |
