Fluorescence filter for tissue examination and imaging

Details Fluorescence filter for tissue examination and imaging Fluorescence filter for tissue examination and imaging

A - Human Necessities

61

B

A61B 5/00 (2006.01) A61B 5/103 (2006.01)

Patent

CA 2520195

A tissue examination system is disclosed in various embodiments, generally including a handle, a lighting element, (such as an LED), a filter, and in some embodiments a mirror. In a preferred embodiment, a lighting element and filter are attached to the distal end of a handle so that fluorescence by the bodily tissue can be directly observed by the filter in various configurations. In another, a mirror is integrated with the filter and light assembly to reflect and filter fluoresced light to an observer, while in yet another, a shield blocks ambient light from interfering with the tissue examination by injecting additional light into the view.

Selon divers modes de réalisation, un système d'examen des tissus comprend généralement une poignée, un élément d'éclairage (tel qu'une diode électroluminescente), un filtre et, dans certains modes de réalisation, un miroir. Dans un mode de réalisation préféré, un élément d'éclairage et un filtre sont fixés à l'extrémité distale d'une poignée de sorte que la fluorescence provenant des tissus corporels peut être directement observée par le filtre dans des configurations diverses. Dans une variante, un miroir est incorporé à l'ensemble filtre et élément d'éclairage pour réfléchir et filtrer une lumière rendue fluorescente à l'intention d'un observateur, tandis que, dans une autre variante, un écran bloque la lumière ambiante, l'empêchant de perturber l'examen des tissus en injectant une lumière additionnelle dans le champ de vision.

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