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endoscope

An endoscope and lens technology, applied in the field of endoscopes, can solve the problems of thicker outer diameter around the camera unit and noise mixing into the interior, etc.

Active Publication Date: 2019-01-11
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in each of the above-mentioned documents, the static electricity generated on the side of the resin-made distal end constituent member is guided to the hand side of the endoscope through the frame member (reinforcing frame, element frame) surrounding the outer periphery of the imaging unit. Therefore, there is a disadvantage that the outer diameter around the imaging unit becomes thicker.
[0009] Furthermore, since static electricity flows through the outer periphery of the imaging unit, there is a possibility that noise caused by generated static electricity may easily enter the interior from the outer periphery of the imaging unit when the grounding resistance is large.

Method used

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no. 1 Embodiment approach

[0033] exist Figure 1 ~ Figure 3 The first embodiment of the present invention is shown in . figure 1 The illustrated electronic endoscope 1 is, for example, a bronchoscope, and includes an insertion unit 2 inserted into the subject, an operation unit 3 provided on the proximal side of the insertion unit 2 , and a universal cable extending from the operation unit 3 . 4.

[0034] An angle control lever 5 , a suction button 6 , a treatment instrument insertion port 7 , and the like are provided on the operation portion 3 . The angle control lever 5 is a member for bending and operating a later-described bending portion 9 provided on the insertion portion 2 , for example, upward and downward. The treatment instrument insertion port 7 is arranged in the insertion part 2 through the treatment instrument channel 16 (refer to image 3 ) is in communication with the treatment instrument channel opening 15 that is provided through the top hard part 8 described later, and the treat...

no. 2 Embodiment approach

[0049] exist Figure 4 ~ Figure 6B The second embodiment of the present invention is shown in . In this embodiment, the first conduction portion 25 of the first embodiment described above is embodied. Therefore, constituent elements other than the portion corresponding to the first conduction portion 25 are the same as those of the first embodiment, and thus are denoted by the same reference numerals and detailed description thereof will be omitted.

[0050] The illumination lens frame 23 of the present embodiment is formed of a material having both electrical conductivity and elasticity, such as stainless spring steel (for example, SUS304-WPB). And, if Figure 5 As shown, a part of the base of the illuminating lens frame 23 is cut off to integrally form the protruding piece 23b indicated by a dotted line, and the protruding piece 23b extending in the direction of the proximal end is folded back in a curled shape to form a first The contact 23c of the conduction part. In a...

no. 3 Embodiment approach

[0056] exist Figure 7 ~ Figure 10 The third embodiment of the present invention is shown in . In the above-mentioned second embodiment, the contacts 23c and 23d formed on the illuminating lens frame 23 are in contact with the inner circumference of the curved tube 11 to ensure electrical conduction, but in this embodiment, the contacts 23c and 23d formed on the curved tube 11 are formed on the curved tube 11 as The structure of the contact 11e (11f, 11g) of the 1st conduction part. In addition, the present embodiment is an embodiment in which the first conduction portion 25 of the first embodiment is embodied, and other constituent elements are the same as those of the first embodiment, so the same reference numerals are assigned and detailed descriptions are omitted.

[0057] The curved pipe 11 of the present embodiment is formed of a material having both electrical conductivity and elasticity, such as stainless spring steel (for example, SUS304-WPB). That is, if Figure ...

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Abstract

The electronic endoscope (1) of the present invention includes: an insertion part (2), which penetrates through the subject; a resin-made top end hard part (8), which has a top end part and a base end part, and is provided on the insertion part The top portion of (2); metal curved tube (11), which is connected to the top hard part (8); the object optical system (17a, 17b), which is located on the top hard part (8); Unit (18), which photographs the image formed by the objective optical system (17a, 17b); metal illumination lens frame (23), which holds the illumination optical system (22) located at the top hard part (8) , the lighting lens frame (23) is extended in the direction of the base end; and a first conduction part (25), which electrically conducts the curved tube (11) and the lighting lens frame (23).

Description

technical field [0001] The present invention relates to an endoscope in which a metal lens frame provided on a resin distal end hard portion and a metal curved tube are electrically connected. Background technique [0002] In recent years, an endoscope inserted into a subject has been widely used in the medical field. An endoscope observes inside a subject by inserting a long and thin insertion portion into the subject. In addition, in general, the hard member (tip hard portion) provided at the distal end of the insertion portion of the endoscope is often formed of a conductive metal material. In particular, in endoscopes having an insertion portion with a narrow outer diameter, the surroundings of the imaging unit are not covered with a metal shield in order to reduce the diameter of the insertion portion, and the hard end portion is made of metal in order to ensure strength. system. [0003] Therefore, even if static electricity is applied to the distal rigid portion, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00A61B1/04G02B23/24G02B23/26
CPCA61B1/0008A61B1/00096A61B1/0011A61B1/00114G02B23/2423G02B23/2469A61B1/00163G02B23/243A61B1/005A61B1/04A61B1/009A61B1/00097H04N23/51H04N23/54G02B23/2453
Inventor 仁科研一小川知辉
Owner OLYMPUS CORP