Syringe having a retractable needle
Номер патента: EP1708771A1
Опубликовано: 11-10-2006
Автор(ы): Eric Schiller
Принадлежит: Becton Dickinson and Co
Опубликовано: 11-10-2006
Автор(ы): Eric Schiller
Принадлежит: Becton Dickinson and Co
Реферат: A medical device for delivering a medicament to a patient. The device includes a syringe barrel (24) with a plunger (28) movably insertable therein to expel medicament in the barrel. A needle cannula (26) is connected to a needle cannula hub (34) which is slidably arranged in the barrel for moving between an initial position in which the forward tip is exposed and a retracted position in which the forward tip is contained within the barrel. A retainer (40) engages an annular groove (38) defined in an inner surface of the barrel and secures the needle cannula hub at the initial position proximate the front end of the barrel. An urging member (42) is arranged between the front end of the barrel and the needle cannula hub for urging the needle cannula hub toward the retracted position. The retainer is released when the stopper is in a fully inserted position.
Syringe having a retractable needle
Номер патента: WO2005072799A1. Автор: Eric Schiller. Владелец: BECTON, DICKINSON AND COMPANY. Дата публикации: 2005-08-11.