Safety shield for injection device

• Main Authors: NATH LAXMINARAYANA, THORLEY JOHN, LAURENCE LAWTON
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2024
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

An injection device includes a housing defining a longitudinal axis and receiving a medicament container containing a medicament. The housing has a distal end defining an opening for receiving a portion of a needle operably coupled with the medicament container. A safety shield surrounds at least a distal portion of the housing. The safety shield is advanced distally relative to the housing from a retracted position to a deployed position for shielding the needle. A thrust spring is disposed between the housing and the safety shield. The propulsion spring propels the safety shield from the retracted position to the deployed position and interlocks with the housing and the safety shield when the safety shield is in the deployed position to prevent the safety shield from returning to the retracted position. 一种注射装置包括壳体，所述壳体限定纵向轴线并且接收容纳药物的药物容器。所述壳体具有远侧端部，所述远侧端部限定用于接收与所述药物容器可操作地联接的针的一部分的开口。安全护罩至少包围所述壳体的远侧部分。所述安全护罩相对于所述壳体从缩回位置向远侧推进到展开位置以用于遮挡所述针。推进弹簧被布置在所述壳体与所述安全护罩之间。所述推进弹簧将所述安全护罩从所述缩回位置推进到所述展开位置，并且当所述安全护罩处于所述展开位置时与