Method and pdt probe for minimizing ct and mri image artifacts

Details Method and pdt probe for minimizing ct and mri image artifacts Method and pdt probe for minimizing ct and mri image artifacts

A - Human Necessities

61

B

A61B 5/05 (2006.01) A61N 5/06 (2006.01) G01R 33/28 (2006.01) H05K 3/32 (2006.01) H05K 3/28 (2006.01)

Patent

CA 2284837

An implantable probe (100) having a non-metallic insulating base (126), non- metallic conductive traces (104, 106) supported by the base (126), and a plurality of non-metallic light sources supported by the base (126) and coupled to the conductive traces (104, 106). The conductive traces (104, 106) and the light sources are fabricated from the conductive polymer, which does not cause any artifacts if the implantable probe (100) includes an enclosure (102) that is transparent and hermetically encloses the base (126), the pair of conductive traces (104, 106), and the light sources. At least a portion of the enclosure (102) is optically transparent, enabling light emitted by the light sources to illuminate an adjacent treatment site. The conductive traces (104, 106) and the base (126) are substantially flexible, enabling the probe (100) to advance within the body to the treatment site. A non-metallic receiver coil (200) implanted in a patient's body is energized by inductively coupling it to an external transmitter coil (220). The current from the receiver coil (200) is conveyed to the implantable probe (100) through non- metallic leads (112, 114).

L'invention concerne une sonde implantable (100) à support isolant non métallique (126), sur lequel reposent des tracés en matériau conducteur (104, 106) et une pluralité de sources lumineuses non métalliques couplées auxdits tracés (104, 106), lesquels sont en polymère conducteur, de même que les sources lumineuses. Ainsi, aucun artéfact n'est à déplorer si la sonde (100) comporte une enveloppe (102) transparente qui enferme hermétiquement le support (126), la paire de tracés (104, 106) et les sources lumineuses. Au moins une partie de l'enveloppe (102) est optiquement transparente, la lumière des sources lumineuses pouvant donc illuminer un site de traitement adjacent. Les tracés (104, 106) et la base (126) sont sensiblement flexibles, permettant à la sonde (100) d'avancer dans le corps vers le site de traitement. Une bobine de réception non métallique (200) implantée dans le corps du patient est mise sous tension par couplage inductif avec une bobine de transmission externe (220). Le courant de la bobine de réception (200) est acheminé vers la sonde (100) par des conducteurs non métalliques (112, 114).

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