Bronchial stenter having expandable electrodes

Details Bronchial stenter having expandable electrodes Bronchial stenter having expandable electrodes

A - Human Necessities

61

B

A61B 18/14 (2006.01)

Patent

CA 2362782

An apparatus and method are provided for treating collapsed bronchial tubes found in patients with chronic obstructive pulmonary diseases, such as asthma. The apparatus delivers energy to inductively heat the tissue of the bronchial tube by directing electromagnetic energy into the tissue. The apparatus includes expandable electrodes that come into contact with the walls of the bronchial tubes. The expandable electrodes may be conical-shaped electrodes, loop-shaped electrodes, plate-shaped electrodes, or other shapes. The method includes heating the bronchial tube to cause tissue in the wall of the bronchial tube to undergo a structural transformation effective to render the wall capable of supporting a non-collapsed lumen. The procedure effectively reinforces the structural integrity of the bronchial tube wall and thereby prevents the lumen from collapsing.

L'invention concerne un appareil et un procédé servant à traiter des tubes bronchiques affaissés chez des patients présentant des affections respiratoires obstructives chroniques telles que l'asthme. L'appareil applique de l'énergie pour chauffer par induction le tissu du tube bronchique en dirigeant l'énergie électromagnétique dans le tissu. L'appareil comporte des électrodes expansibles qui entrent en contact avec les parois des tubes bronchiques. Les électrodes expansibles peuvent être coniques, en forme de boucle, en forme de plaque, ou présenter d'autres formes. Le procédé comporte les étapes consistant à chauffer le tube bronchique pour provoquer une transformation structurale des tissus de la paroi du tube bronchique, afin de permettre à la paroi de supporter une lumière non affaissée. Cette procédure renforce efficacement l'intégrité structurale de la paroi du tube bronchique et permet ainsi de prévenir un affaissement de lumière.

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