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Insertion section of endoscope

A technology for inserting parts and endoscopes, applied in the fields of endoscopes, telescopes, medical science, etc., can solve the problem that the actuator unit will not wait

Active Publication Date: 2011-07-20
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the case of using both the actuator unit and the heater unit, the shape memory part of the actuator unit may be affected by the heat generated by the heating part of the heater unit, and the actuator unit may not operate properly

Method used

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  • Insertion section of endoscope
  • Insertion section of endoscope
  • Insertion section of endoscope

Examples

Experimental program
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Embodiment Construction

[0028] One embodiment of the present invention will be described with reference to the drawings.

[0029] refer to figure 1 , the endoscope 20 has an insertion portion 21 inserted into the body. In the insertion part 21, a rigid distal rigid part 22, a bending part 23 for bending, and a long and flexible flexible tube part 24 are arranged from the distal side to the proximal side. The base end portion of the insertion portion 21 is connected to an operation portion 25 held and operated by an operator. Various switches 26 and a bending operation lever 27 for bending the bending portion 23 are arranged on the operating portion 25 . A universal cable 28 extends from the operation unit 25 , and a light source connector 29 is arranged at an extended end of the universal cable (cable) 28 . In addition, a cable 31 is extended from the light source connector 29 , and an electrical connector 32 is arranged at the extended end of the cable 31 . The light source connector 29 and the ...

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PUM

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Abstract

An insertion section of an endoscope, configured in such a manner that an actuator unit and a heater unit are used in combination with an imaging unit, wherein the actuator unit uses a shape memory member, which is deformable according to temperature, in order to drive a movable optical member of the imaging unit and wherein the heater unit uses a heating member in order to heat a tip optical member of the imaging unit. The configuration allows the actuator unit of the insertion section of an endoscope to be appropriately operated. An axially extending insertion section of an endoscope is provided with: an imaging unit (38) for capturing an observation image, the imaging unit (38) having an optical axis (O) and being provided with a tip optical member (44) mounted to the tip of the imaging unit (38) and also with a movable optical member (51) movable relative to the tip optical member (44); an actuator unit (56) for driving the movable optical member (51), the actuator unit (56) having a shape memory member (58) deformable according to temperature; and a heater unit (62) having a heating member (63) for heating the tip optical member (44), the heater unit (62) being, when viewed in the axial direction of the insertion section (21), located opposite the actuator unit (56) across the optical axis (O) of the imaging unit (38).

Description

technical field [0001] The present invention relates to an endoscope insertion part using both an actuator unit and a heater unit for an imaging unit. In the actuator unit, a shape memory member capable of deforming with temperature is used in order to drive a movable optical member of the imaging unit. , In the heater unit, in order to heat the front end optical component of the imaging unit, a heating member is used. Background technique [0002] An example of the actuator unit is disclosed in JP 2007-219155 A. In the endoscope disclosed in Japanese Unexamined Patent Application Publication No. 2007-219155, an imaging unit is arranged at the front end of the endoscope. The imaging unit has a movable lens frame mounted with an objective lens group and movable in an optical axis direction. The moving lens frame is driven by an actuator unit in which a shape memory alloy (hereinafter referred to as SMA) wire is used. [0003] An example of a heater unit is disclosed in JP-...

Claims

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Application Information

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IPC IPC(8): A61B1/00G02B13/00G02B23/24G02B23/26
CPCA61B1/05A61B1/0008G02B23/2476A61B1/127A61B1/00096G02B23/2453A61B1/01A61B1/0058A61B1/128A61B1/002
Inventor 青野进小久保光贵
Owner OLYMPUS CORP
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