Inserter having two springs

Details Inserter having two springs Inserter having two springs

A - Human Necessities

61

M

A61M 5/158 (2006.01) A61B 5/15 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2704909

The invention relates to an inserter for a medical device e.g. an infusion set or the likefor intermittent or continuous administration of a therapeutical substance, such as e.g. insulin. The inserter comprises a needle hub comprising an insertion needle and two elastic elements assuring automatic insertion and automatic retraction of the insertion needle. Activation of the first elastic element (11) cause a penetrating member (6A) to be inserted sub-or transcutaneously into the skin of a patient, and the secondelastic element (12) cause the penetrating member (6A) to be retracted from the skin of the patient. The first elastic element (11) is in an unloaded state before activation and upon activation the first elastic element (11) energizes the second elastic element (12).

La présente invention concerne un instrument d'introduction pour un dispositif médical, par exemple une perfusion ou similaire, pour l'administration intermittente ou continue d'une substance thérapeutique, telle que par exemple l'insuline. L'instrument d'insertion comprend un pavillon d'aiguille comprenant une aiguille d'insertion et deux éléments élastiques assurant l'insertion automatique et la rétraction automatique de l'aiguille d'insertion. L'activation du premier élément élastique (11) provoque l'insertion sous-cutanée ou transcutanée d'un élément pénétrant (6A) dans la peau d'un patient, et le second élément élastique (12) provoque la rétraction de l'élément pénétrant (6A) de la peau du patient. Le premier élément élastique (11) est à l'état de repos avant l'activation et au moment de l'activation, le premier élément élastique (11) met sous tension le second élément élastique (12).

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