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Endoscope device, endoscope cap, and analysis method

An endoscope and wavelength separation technology, which is applied in the fields of endoscope, telescope, medical science, etc., can solve the problems such as the lack of open polarization observation unit and the deterioration of polarization image quality

Inactive Publication Date: 2015-06-10
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, Japanese Patent Application Laid-Open No. 2009-213649 needs to install an imaging device such as a CCD at the front end, and there is a problem that the diameter of the insertion part becomes thicker.
[0007] In addition, as shown in Japanese Patent Application Laid-Open No. 2010-104422, in order to reduce the diameter of the insertion part, an optical fiber bundle is arranged at the front end, for example, to guide the return light to an imaging element provided in a subsequent main body device or the like, and use The polarized light separation element performs polarization observation. In this type of endoscope device, the number of pixels corresponds to the number of beams, and there is a problem that the quality of the polarized image deteriorates.
[0008] In addition, there is no disclosure of a polarization observation unit that uses the imaging method of JP 2003-535659 A to perform polarization observation while maintaining a small diameter.

Method used

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  • Endoscope device, endoscope cap, and analysis method
  • Endoscope device, endoscope cap, and analysis method
  • Endoscope device, endoscope cap, and analysis method

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no. 1 Embodiment approach ）

[0030] Next, the first embodiment will be described.

[0031] First, use Figure 1 ~ Figure 3 The configuration of the endoscope apparatus according to the first embodiment will be described.

[0032] figure 1 It is a figure showing the structure of the endoscope apparatus of 1st Embodiment, figure 2 is a perspective view showing the structure of the front end portion of the endoscope device, image 3 It is a figure for explaining the arrangement|positioning of the polarizing filter of a front-end|tip part.

[0033] Such as figure 1 As shown, an endoscope device 1 is configured to include: a scanning endoscope 2 that irradiates a subject while scanning illumination light to obtain return light from the subject; The endoscope 2 is connected; and a monitor 4 that displays an image of the subject obtained by the main body device 3 .

[0034] The endoscope 2 has an elongated insertion portion 11 whose main body is a tubular body having predetermined flexibility. A front en...

no. 2 Embodiment approach ）

[0089] Next, a second embodiment will be described.

[0090] Figure 10 It is a perspective view showing the structure of the distal end of the endoscope device according to the second embodiment, Figure 11 It is a side view showing the tip structure of the second embodiment and a figure showing the structure of the inner peripheral surface of the cap, Figure 12 It is a figure which shows another front-end|tip structure of an endoscope apparatus. In addition, the same code|symbol is attached|subjected to the same structure as the endoscope apparatus 1 of 1st Embodiment, and description is abbreviate|omitted.

[0091] The endoscope device 1c of the present embodiment is configured to include, in addition to the main body device 3 and the monitor 4 of the first embodiment, an endoscope 2a, and a circular endoscope that can be attached to and detached from the distal end portion 12 of the endoscope 2a. A barrel-shaped cap 50 .

[0092] An illumination lens 13a is provided o...

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Abstract

An endoscope apparatus 1 comprises a light source unit 24 which emits light having different polarization characteristics in at least two wavelength bands, an illumination fiber 14 which has one end arranged at a distal end of an insertion portion 11 to be inserted into a subject, and guides the light from the light source unit 24, a driver unit 25 which causes the one end of the illumination fiber 14 to perform scanning, detection fibers 16a and 16b which are arranged at a distal end portion 12 and receives return light from the subject, and polarization filters 17a and 17b which are arranged between the subject and the detection fibers 16a and 16b, and polarizes the return light in desired polarization directions.

Description

technical field [0001] The present invention relates to endoscopic devices, endoscopic caps and analysis methods. Background technique [0002] Conventionally, a scanning endoscope device has been proposed that scans the tip of an optical fiber that guides unpolarized light from a light source, receives return light from a subject with an optical fiber bundle arranged around the optical fiber, and uses The detected light intensity signal is imaged (for example, refer to JP 2003-535659 A). [0003] In addition, an endoscope device has been proposed that observes a polarized image using polarized light in addition to observation using non-polarized light when observing with an endoscope, for example, when diagnosing early cancer or the like. (For example, refer to JP-A-2009-213649 and JP-A-2010-104422). [0004] In the endoscope device disclosed in Japanese Patent Application Laid-Open No. 2009-213649, the front end of the endoscope can be separated from the light illuminati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00A61B1/06G02B23/24G02B23/26
CPCA61B1/00137G02B23/2469G02B23/2423G02B23/2484A61B1/00186A61B1/05A61B1/0646G02B26/103A61B1/0638A61B1/00172
Inventor 岛田朋子吉野真广有吉大记五十岚诚
Owner OLYMPUS CORP