Medical device for internal heat treatment and drug delivery

Details Medical device for internal heat treatment and drug delivery Medical device for internal heat treatment and drug delivery

A - Human Necessities

61

F

A61F 7/12 (2006.01) A61M 31/00 (2006.01) A61B 17/42 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2315173

Medical device (1) for effecting heat treatment and local delivery of a fluid medicament on body tissue presenting a predetermined section of a boundary wall of a passageway in a human or animal body comprising a catheter-like member (12) for insertion into the passageway to a predetermined insertion position, the catheter-like member being provided with an inflatable balloon structure (11) having a boundary wall which is inflatable against the body tissue when the catheter-like member (12) is in the predetermined insertion position and delivery means (2, 11, 25) for local delivery of the fluid medicament on the body tissue when the catheter-like member (12) is in the predetermined insertion position, and a heating arrangement (10, 15) which is adapted to heat the body tissue when the catheter-like member (12) is in the predetermined insertion position. The delivery means (2, 11, 25) comprises a supply channel (25) for supply of the fluid medicament to the balloon structure (11) and a construction for the boundary wall (2) of the balloon structure (11) which is permeable to the fluid medicament. Supply of the fluid medicament to the balloon structure along the supply channel (25) when the catheter-like member (12) is in the predetermined insertion position thereby causes the balloon structure (11) to inflate and fluid medicament to be delivered locally on the body tissue through the boundary wall (2) of the balloon structure (11).

La présente invention concerne un dispositif médical (1) permettant d'effectuer un traitement thermique et une administration locale de médicament liquide sur un tissu corporel, lequel dispositif présente une section prédéterminée de paroi périphérique en contact avec un passage dans un corps humain ou animal et comprend un élément de type cathéter (12) destiné à être introduit dans ledit passage dans une position d'insertion prédéterminée. L'élément de type cathéter comprend: une structure de ballonnet gonflable (11) doté d'une paroi périphérique pouvant être gonflée contre le tissu corporel lorsque l'élément de type cathéter (12) se trouve dans la position d'insertion prédéterminée; un moyen de délivrance (2, 11, 15) permettant d'administrer localement le médicament liquide sur le tissu corporel lorsque l'élément de type cathéter (12) se trouve dans la position d'insertion prédéterminée; et un dispositif de chauffage (10, 15) apte à chauffer le tissu corporel lorsque l'élément de type cathéter (12) se trouve dans la position d'insertion prédéterminée. Le moyen de délivrance (2, 11, 15) comprend un canal d'alimentation (25) qui distribue le médicament liquide à la structure de ballonnet (11) et une construction de paroi périphérique (2) de structure de ballonnet (11) perméable au médicament liquide. La distribution du médicament liquide à la structure de ballonnet le long du canal d'alimentation (25) lorsque l'élément de type cathéter (12) se trouve dans la position d'insertion prédéterminée provoque le gonflage de la structure de ballonnet (11) et l'administration locale du médicament liquide sur le tissu corporel via la paroi périphérique (2) de la structure de ballonnet (11).

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