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US 6,551,240 B2Granted
Endoscope
OwnerMarc U. Henzlerinventor
Life of this patent
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Abstract
An endoscope is described, in which a shaft is included with inner and outer sheath pipes (1, 2) multiple illumination units (10) with LED's (25) provided for producing illumination light cascade-like, axially sequentially. The illumination units (10) consist of light transmissive carriers, upon which the LED's (25) are bonded. The light produced by the sequentially arranged illumination units (10) is emitted at the distal end with a high intensity of illumination, preferably after reflection from a mirror (11) provided at the proximal end.
Claims24
An endoscope comprising:
- a shaft with coaxial outer and inner sheath pipes (1, 2);
- an optic system provided in the inner sheath pipe (2);
- a lens system (5) provided at the distal end;
- and
- illumination units (10) provided in the shaft with ring-like light emitting diodes (25) (LED's) surrounding the inner sheath pipe (2) for producing the light of illumination, wherein the LED's (25) are provided on ring-shaped light-transmissive carriers (10), which carriers (10) are provided between the inner and outer sheath pipes (1, 2), and wherein multiple carriers (10) are provided between the proximal and distal ends of the shaft in the ring space between the inner and outer sheath pipes (1, 2) cascade-like, axially sequentially.
2 more elements
Dependencies are inferred from the claim text.