Fluid transfer and diagnostic system for treating the inner ear

A - Human Necessities – 61 – F

Patent

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Details

A61F 11/00 (2006.01) A61M 29/00 (2006.01) A61M 31/00 (2006.01) A61B 5/042 (2006.01)

Patent

CA 2338341

This invention is an apparatus (10) for delivering fluid materials into, and out of the inner ear (204) via the round window membrane (206). A fluid transfer conduit (12) is provided which includes one or more passageways (22, 34, 162) therethrough which may have a semipermeable membrane (130) associated therewith to control fluid flow. Attached to the conduit (12) is an inflatable bladder (46) sized for insertion within the round window niche (210). When inflated, the bladder engages the internal side wall (214) of the niche (210), thereby securing the bladder, and part of the conduit within the niche (210). Bladder inflation may be achieved through one of the passageways (34) within the conduit which can deliver an inflation fluid into the bladder. Also, the conduit (12) may include an elongate conductive diagnostic member (102) for transferring electrical potentials to, and from the inner ear.

L'invention concerne un appareil (10) permettant de délivrer des matériaux fluides à l'intérieur et à l'extérieur de l'oreille interne (204), via la membrane de la fenêtre ronde (206). Un conduit de transfert de fluide est fournit, celui-ci comprenant un ou plusieurs passages (22, 34, 162) pouvant posséder une membrane semi-perméable (130) associée audits passages, de manière à commander le fluide. Une poche gonflable (46), dimensionnée pour être introduite dans la niche de la fenêtre ronde (210), est fixée au conduit (12). Lorsqu'elle est gonflée, la poche vient en contact avec la paroi latérale (214) interne de la niche (210), ce qui fixe ladite poche et une partie du conduit dans la niche (210). Le gonflage de la poche peut être exécuté à travers l'un des passages (34) du conduit, qui peut délivrer un fluide de gonflage dans ladite poche. Ce conduit (12) peut également comprendre un élément de diagnostic (102) conducteur, allongé, permettant de transférer des potentiels électriques dans l'oreille interne ou à partir de celle-ci.

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