Electronic endoscopy system

An electronic endoscope and narrow-band technology, which is applied in the fields of endoscopy, medical science, surgery, etc., can solve problems such as difficult observation, and achieve the effect of reliable image diagnosis

Active Publication Date: 2015-10-28
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in close-up observation, superficial blood vessels and the like are highlighted more brightly. Therefore, when image processing is performed to make up for insufficient light, the image on the monitor may be too bright, making it difficult to observe.

Method used

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  • Electronic endoscopy system
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Embodiment

[0094] Hereinafter, the present invention will be described in more detail based on Examples and Comparative Examples. In this embodiment, in the close-up observation mode in the special-light imaging mode, imaging inside the body cavity is performed using the rotary filter 31 shown in FIG. 15 . This rotary filter 31 is the same as that shown in the above-mentioned first embodiment. The rotary filter 31 is provided with a first filter area 38 used in the normal light image mode and a second filter area 39 used in the special light image mode. Wherein, on the second filter area 39, a first blue narrow-band light transmission filter 65, a second blue narrow-band light transmission filter 66, a first green narrow-band light transmission filter 66, and a first green narrow-band light transmission filter are arranged in sequence along the circumferential direction. The light passes through the filter 67 and the second green narrowband light passes through the filter 68 . Therefor...

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Abstract

PROBLEM TO BE SOLVED: To provide an electronic endoscope system capable of obtaining sufficiently bright video images without affecting observation with special light even when the system is in a distant view observation condition in which light quantity is short. SOLUTION: In a distant view observation mode, image pickup is executed by irradiating a body cavity with a second blue narrow band light Bn2 obtained by expanding a half value width of a first blue narrow band light Bn1 used in a short range view observation mode and a second green narrow band light Gn2 obtained by expanding a half value width of a first green narrow band light Gn1 used similarly in the short range view observation mode. The narrow band light such as the first blue narrow band light Bn1 is generated by transmitting a wide band light to either of a plurality of specific wavelength transmissive filters provided in a rotating filter. In the rotating filter, the specific wavelength transmissive filters are arranged so that a blank period when images of the body cavity are not obtained can be short even when in either the short range or distant view observation state. COPYRIGHT: (C)2012,JPO&INPIT

Description

technical field [0001] The present invention relates to an electronic endoscope system equipped with a special optical observation function for emphatically displaying superficial blood vessels. Background technique [0002] In the medical field in recent years, diagnosis and treatment using an electronic endoscope are becoming popular. The electronic endoscope has an elongated insertion portion inserted into the body cavity of a subject, and an imaging element such as a CCD is built in the distal end portion of the insertion portion. In addition, a light source device and a processor device are connected to the electronic endoscope. The illumination light from the light source device is irradiated to the observation site in the body cavity from the illumination window provided at the distal end portion of the electronic endoscope. Reflected light from the observation site enters the CCD through an imaging window provided at the distal end of the electronic endoscope. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00A61B1/07
Inventor 山口博司饭田孝之
Owner FUJIFILM CORP
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