Apparatus for irradiating the bronchi of a patient for the...

Details Apparatus for irradiating the bronchi of a patient for the... Apparatus for irradiating the bronchi of a patient for the...

A - Human Necessities

61

N

326/4

A61N 5/06 (2006.01) A61B 18/22 (2006.01)

Patent

CA 2033670

An apparatus for irradiating the bronchi of a patient for the purpose of photodynamic therapy has an optical fibre (11) that feeds the light of a laser into a bronchoscope and is surrounded by a light-guide tube (8) and an outer tube (2). The distal end (13) of the optical fibre (11) is embedded in a silicone composition (17) containing 7 parts per thousand of TiO2 particles having a particle size of 0.2 µm. The silicone composition (17) fills the front end of the light-guide tube (8) as far as the end face (6) of an aluminium cylinder (5) which acts as a mirror. The light dispersed by the TiO2 particles is emitted radially through the light-guide tube (8) and the front portion of the outer tube (2) and acts on the patient's bronchi.

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