Implantable shunt or catheter enabling gradual delivery of...

A - Human Necessities – 61 – M

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A61M 27/00 (2006.01) A61M 31/00 (2006.01)

Patent

CA 2659822

An implantable catheter or shunt (24) for draining fluid from a body cavity. The catheter or shunt body has a wall structure (28) that carries one or more therapeutic agents (26) in a manner enabling release of the therapeutic agent from the wall structure in situ after surgical implantation of the catheter or shunt body. The therapeutic agent can be gradually released over time to prevent infection, inhibit tissue ingrowths, and/or provide some other desired medicinal purpose. As an example, the therapeutic agent can be rapamycin or an mTOR inhibitor. According to some contemplated embodiments of the present invention, the therapeutic agent carried by the catheter/shunt is rechargeable or refillable in situ so that the therapeutic agent can be gradually released from the catheter/shunt over the expected useful life of the catheter/shunt.

L'invention concerne un cathéter ou un élément de court-circuit implantable (24) conçu pour drainer un fluide contenu dans une cavité corporelle. Le corps du cathéter ou de l'élément de court-circuit comprend une structure de paroi (28) qui comporte un ou plusieurs agents thérapeutiques (26), de manière à permettre la libération d'un agent thérapeutique de la structure de paroi, in situ, après l'implantation chirurgicale du corps du cathéter ou de l'élément de court-circuit. Cet agent thérapeutique peut être libéré progressivement dans le temps pour empêcher l'apparition d'infections, inhiber les invasions tissulaires, et/ou servir à tout autre but médicinal. Par exemple, l'agent thérapeutique peut se présenter sous la forme de rapamycine ou d'un inhibiteur de mTOR. Dans certains modes de réalisation de cette invention, l'agent thérapeutique se trouvant dans le cathéter et/ou l'élément de court-circuit peut être rechargé in situ de manière que cet agent thérapeutique puisse être libéré progressivement du cathéther/élément de court-circuit au cours de la durée de vie utile escomptée de ce cathéter/élément de court-circuit.

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