Insertion sets with micro-piercing members for use with...

A - Human Necessities – 61 – M

Patent

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Details

A61M 37/00 (2006.01) A61B 17/20 (2006.01)

Patent

CA 2352974

An insertion set for essentially painless insertion through tissue includes a substrate and at least one micro-piercing member. The at least one micro- piercing member is coupled to the substrate to form a patch. In addition, the at least one micro-piercing member has a predetermined length to pierce the material to a predetermined depth to interact with the tissue. In particular embodiments, the insertion set also includes a control structure within the insertion set for controlling the flow of fluid relative to the substrate and the at least one micro-piercing member of the insertion set. In addition, the insertion set may include or utilize methods or structures for maintaining the insertion set on the tissue for a predetermined period of time. Preferably, the predetermined length of the at least one micro-piercing member is long enough to pierce the tissue, and yet short enough to avoid contacting the nerves in the tissue. The insertion set may also include a light controlling structure within the insertion set for controlling the entry of light relative to the substrate and the at least one micro-piercing member of the insertion set. Some types of insertion sets may include a fluorescent analyte detection compound (or other detection compound) to detect the level of an analyte in the tissue, while other insertion sets are an infusion set for infusing a liquid into the tissue.

L'invention concerne un ensemble d'injection pouvant être utilisé essentiellement pour effectuer une injection sans douleur à travers un tissu, qui comprend un substrat et au moins un élément de micro-perforation, cet élément étant couplé à un substrat afin de former un timbre. L'élément de micro-perforation présente, entre outre, une longueur prédéterminée permettant de percer le matériau à une profondeur prédéterminée afin d'interagir avec le tissu. Selon des modes de réalisation particuliers, l'ensemble d'injection renferme également une structure de commande, qui permet de commander l'écoulement fluidique par rapport au substrat et à l'élément de micro-perforation. De plus, l'ensemble d'injection comprend ou utilise des procédés et des structures qui permettent de maintenir ledit ensemble sur le tissu pendant une durée prédéterminée. La longueur prédéterminée de l'ensemble de micro-perforation est, de préférence, suffisamment longue pour perforer le tissu, et suffisamment courte pour éviter le contact avec des nerfs dans le tissu. L'ensemble d'injection peut également renfermer une structure de commande lumineuse, afin de commander l'entrée de la lumière par rapport au substrat et à l'élément de micro-perforation. Certains types d'ensembles de perforation comprennent un composé de détection d'analyte fluorescent (ou un autre composé de détection) permettant de détecter le niveau d'un analyte dans le tissu, d'autres ensembles d'injection étant des ensembles d'infusion destinés à infuser un liquide dans ledit tissu.

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