JP2000079091A - Medical observation instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily enable a change of scopes during operation and prevent unwillingly making the scope unclean during change of the scope. SOLUTION: This instrument comprises a first light guide 71 to irradiate an operation part, an objective optical system, a lens system 70 as a photographing optical system to take a picture of an optical image from the objective optical system, and a second light guide 45 to supply illumination light to the first light guide 71. In this case, an adaptor 65 as a connection means to contactlessly and optically connect the objective optical system to the lens system 70, and the first light guide 71 to the second light guide 45 respectively is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical observation apparatus provided with an illumination optical system for illuminating a surgical site and an imaging optical system for capturing an optical image of the surgical site from an objective optical system.

[0002]

2. Description of the Related Art In a surgical operation using an endoscope such as a laparoscope, a plurality of rigid endoscopes or treatment tools are often used at once. The rigid mirror is connected to a tube for supplying air, water, and suction, a light guide for supplying illumination light, and the like.

[0003] During the operation, the scope is difficult to use because the scope is directly held by hand even in a complicated arrangement of the members. That is, while the affected area is observed with the scope, the operator holds the scope with the hand all the time, and changes the direction of the scope with the hand when changing the viewing direction.

[0004] At the time of surgery, a staff who operates the scope is always at the bedside, so that in a small operating room, the operability of medical equipment operated by other staff may be deteriorated. In addition, the operator of the scope was tired.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances.
It is an object of the present invention to provide a medical observation device capable of easily replacing a scope during an operation and preventing the scope from being unintentionally unclean.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a first light guide for illuminating a surgical site, an objective optical system, and an imaging device for imaging an optical image from the objective optical system. In a medical observation apparatus having an optical system and a second ride guide for supplying illumination light to the first ride guide, the objective optical system, the imaging optical system, the first ride guide, and the It is characterized by having connection means for connecting the second ride guides in a non-contact and optical manner.

A second aspect of the present invention is characterized in that the connecting means of the first aspect has a sterile cover at its rear end side, which sterilizes at least the imaging optical system and the second light guide.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a first embodiment, FIG. 1 is an overall configuration diagram of a medical observation apparatus, and FIG. 2 is an enlarged sectional view of a portion A in FIG. As shown in FIG. 1, a first turning arm 32 is provided at the upper end of the column 30 so as to be rotatable up and down around a shaft 31 as a fulcrum. A support shaft 33 is provided at an end of the rotation arm 32 so as to protrude upward, and a second rotation arm 34 is provided so as to be horizontally rotatable around the support shaft 33.

An L-shaped pivot arm 36 is pivotally connected to the tip of the second pivot arm 34 via a shaft 35 so as to be pivotable in the vertical direction. A bar 38 is connected to the rotating arm 36 via a shaft 37 so as to be vertically rotatable, and a rotating bar 40 is provided on the bar 38 via a shaft 39 so as to be vertically rotatable. A scope holding portion 41 is provided on the rotation bar 40 via a shaft 42 so as to be vertically rotatable.

The scope holding section 41 has a scope 10
A TV camera C on which is mounted and held. TV camera cable 44 coming out of this TV camera C
A second light guide cable 45 is inserted through the second turning arm 34, the support shaft 33, and the first turning arm 32, and is connected to the connector 32a.

An external second T is connected to these connectors 32a.
V camera cable 46 and third light guide cable 4
9 is connected. That is, the TV camera cable 44 and the second TV camera cable 46 are connected, and the second
The light guide cable 45 and the third light guide cable 49 are connected. The second TV camera cable 46 is connected to a TV-CCU 47 and a monitor TV (not shown). The second light guide cable 49 is connected to the light source 50.

Further, the support shaft 33 and the second swing arm 3
4. The rotating arm 36, the bar 38, the rotating bar 40, the scope holding part 41 and the TV camera C are covered with a sterilization cover 55. The sterilization cover 55 is made of transparent and soft vinyl chloride or the like, and is connected to the revolving arm 34 or the like at an appropriate interval by a string 56.

FIG. 2 shows a joint portion as a connecting means between the TV camera C and the scope 10. A TV camera C is provided at the tip of the scope holding unit 41. The TV camera C is provided with a solid-state imaging device 60 connected to the TV camera cable 44. This solid-state imaging device 60
Are driven by a driver 61. At the tip of the solid-state imaging device 60, a plurality of objective lenses 62 as an objective optical system are provided.

The second end of the TV camera C is
Light guide cable 45 is provided. A concave portion 63 is provided at the tip of the TV camera C. An adapter 65 as connecting means is fitted and fixed to the concave portion 63 via a C ring 64 made of an elastic material. The adapter 65 is provided with a flange 66 in the form of a flange on the peripheral side. The sterilization cover 55 is sandwiched between the flange 66 and the scope holding part 41.

The adapter 65 has a scope 1 described later.
The concave portions 67a and 67b to which the image guide connector 17 and the light guide connector 19 are connected are provided. The center line of the recess 67a is arranged so as to be coaxial with the objective lens 62, and the center line of the recess 67b is arranged so as to be coaxial with the second light guide cable 45.

The scope 10 is connected to the adapter 65. An image guide connector 17 and a light guide connector 19 are provided on the proximal end side of the scope 10. These connectors 17 and 19 are connected to the recesses 67a and 67b of the adapter 65. That is, the image guide connector 17 is optically connected to the objective lens 62, and the light guide connector 19 is optically connected to the second light guide cable 45.

The image guide connector 17 of the scope 10 is provided with a lens system 70 as an imaging optical system. The light guide connector 19 is provided with a first light guide cable 71. The first light guide cable 71 is provided so as to extend to the peripheral edge at the distal end insertion portion of the scope 10.

A screw ring 72 is fitted and fixed to the outer periphery of the scope 10. This screw ring 72
A threaded portion 72a is provided on the inner periphery of. By screwing the screw portion 72a of the screw ring 72 into a screw portion 65a provided at the tip of the adapter 65, the scope 1
0 is detachably held by the TV camera C.

Next, the operation of the medical observation apparatus configured as described above will be described.

When the image guide connector 17 and the light guide connector 19 on the proximal end of the scope 10 are connected to the concave portions 67a and 67b of the adapter 65, the image guide connector 17 is optically connected to the objective lens 62, and the light guide connector 19 is connected. Is the second light guide cable 45
And can be optically connected. Therefore, with the scope 10 kept in a sterilized state, the scopes 10 having different outer diameters and oblique angles are provided.
Can be selectively replaced and used, thereby preventing the sterilized scope 10 from being unintentionally dirty during the replacement of the scope 10.

Further, since the support shaft 33, the turning arm 34, the turning arm 36, the turning bar 40 and the TV camera C are covered with the sterile cover 55, they are not contaminated during the operation, and after the operation, each of them is not contaminated. What is necessary is just to loosen the string 56, remove the sterilization cover 55, and discard it, and the effect that cleaning becomes very easy is obtained.

Moreover, since the scope 10 is detachably attached to the TV camera C via the adapter 65,
The sterilized scope 10 will not be contaminated.

[0024]

As described above, the present invention comprises an objective optical system, an imaging optical system, a first ride guide on the scope side, and a second ride guide for supplying illumination light to the first ride guide. By providing the connection means for optically connecting each of them in a non-contact manner, the scope can be easily exchanged during the operation. In addition, there is an effect that it is possible to prevent a sterilized scope from being unintentionally made dirty during replacement of the scope.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a medical observation device according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a portion A in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Scope 12 ... Solid-state image sensor 45 ... Second ride guide cable 62 ... Objective lens (objective optical system) 65 ... Adapter 70 ... Lens system (imaging optical system) 71 ... First light guide cable

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hitoshi Mizuno 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Industrial Co., Ltd. (72) Yoshihiro Kosaka 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Inventor Hitoshi Karasawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Yoshinao Daimei 2-43-2, Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Hideyuki Adachi 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Thomas Spinneri 2-43-2, Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Masahiro Kaneda 2-43-2 Hatagaya, Shibuya-ku, Tokyo Li campus Optical Industry Co., Ltd. in the (72) inventor Masaaki Hayashi Shibuya-ku, Tokyo Hatagaya 2-chome No. 43 No. 2 Olympus Optical Industry Co., Ltd. in

Claims (2)

[Claims] 1. A first light guide for illuminating an operation part,
In a medical observation apparatus having an objective optical system, an imaging optical system that captures an optical image from the objective optical system, and a second ride guide that supplies illumination light to the first ride guide, An optical system, the imaging optical system, and the
A medical observation apparatus comprising a connection means for connecting the first ride guide and the second ride guide non-contactly and optically. 2. The medical observation apparatus according to claim 1, wherein the connection means has a sterilization cover on a rear end side of the connection means, which covers at least the imaging optical system and the second light guide in a sterilized state. apparatus.