SYSTEM AND METHOD FOR SAFETY SYRINGE

A system for injecting includes a syringe body defining a proximal opening and a distal needle interface. The system also includes a plunger member defining a plunger interior and configured to be manually manipulated to insert a stopper member relative to the syringe body, the plunger member. The plunger member includes a needle retention feature disposed in the plunger interior, an energy-storage member disposed in the plunger interior, and an energy- storage member latching member disposed in the plunger interior. The system further includes a needle hub assembly coupled to the distal needle interface of the syringe body. The needle assembly includes a needle having a needle proximal end feature, a hub, and a needle latching member configured to couple the needle to the hub. The needle is at least partially retractable into plunger interior. The needle proximal end feature includes an annular distally facing surface. 一种用于注射的系统，包括注射器本体，该注射器本体限定近侧开口和远侧针接口。该系统还包括柱塞构件，该柱塞构件限定柱塞内部并且构造成被手动操纵以相对于注射器本体(柱塞构件)插入止动构件