Apparatus and methods for delivering fluid and material to a...

A - Human Necessities – 61 – M

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Details

A61M 5/178 (2006.01) A61M 5/28 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2642129

The present invention provides fluid and material delivery methods and devices for practicing the methods. The invention provides a method of delivering cellular material comprising injecting the cellular material into a subject such that the injected cells retain their inherent morphologic characteristics upon injection. The method comprises the steps of aspirating the cellular material into a fluid delivery device which incorporates a syringe arrangement. The cellular material is aspirated into the main body of the syringe until the desired amount of a material has filled the syringe body. The needle of the fluid delivery device is then inserted into the skin of a subject at an angle about parallel to the skin until a desired depth has been reached. The cellular material is then injected in the subject until the desired volume of material has been injected. The needle of the device is then rotated approximately 45 to 90 degrees and the needle is removed from the injection site.

La présente invention concerne des procédés de délivrance de fluide et de matière et des dispositifs pour mettre les procédés en pratique. L'invention propose un procédé de délivrance de matière cellulaire comprenant d'injecter la matière cellulaire chez un sujet de sorte que les cellules injectées conservent leurs caractéristiques morphologiques inhérentes lors de l'injection. Le procédé comprend les étapes consistant à aspirer la matière cellulaire dans un dispositif de délivrance de fluide qui comprend une structure de seringue. La matière cellulaire est inspirée dans le corps principal de la seringue jusqu'à ce que la quantité souhaitée de matière ait rempli le corps de seringue. L'aiguille du dispositif de délivrance de fluide est ensuite introduite dans la peau d'un sujet selon un angle à peu près parallèle à la peau jusqu'à ce qu'une profondeur souhaitée soit atteinte. La matière cellulaire est ensuite injectée chez le sujet jusqu'à ce que le volume souhaité de matière soit injecté. L'aiguille du dispositif est ensuite tournée à approximativement 45 à 90 degrés et l'aiguille est retirée du site d'injection.

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