JPH04102436A - Electronic endoscope device - Google Patents

Abstract

PURPOSE:To provide an electronic endoscope device having the distal end easily located in the coelom and capable of satisfactorily treating a lesion or the like with a treating tool by forming at least a portion of an armor member of an expansible member and providing an expansively driving means capable of expanding the expansible member. CONSTITUTION:When a lesion or the like is treated by the use of a treating tool 25 while an endoscope 11 is inserted in the coelom P0 between the body walls P, P, the distal end 12 is located properly spaced from the lesion to be treated. While air is supplied from an endoscope body 32 by a changeover valve 35, compressed air is sent from a pump 36 through a connector case 34 and intake/exhaust pipe 37 into the endoscope 11. then, an expansible member 24a of an armor member for bent part is expanded like a balloon and makes contact with the body wall P to be set to the fixed state so that the distal end 12 can be located stationarily. The distal end can easily be located in the coelom by the electronic endoscope device so that the lesion or the like can be satisfactorily treated by the use of the treating tool.

Description

Detailed Description of the Invention: Object of the Invention (Industrial Field of Application) The present invention provides a method for appropriately displaying a subject image photographed by an endoscope scope equipped with a solid-state image sensor on the insertion tip side on a display means. Regarding possible improvements to electronic endoscope devices.

(Prior Art) As shown in FIG. 6, a conventional electronic endoscope device includes a distal end portion 2 having a solid-state image sensor 5 and disposed on the insertion distal side, and a distal end portion 2 disposed at the rear of the distal end portion 2. It has a bendable curved part 3 and a guide part 4 arranged behind the curved part 3, and is provided across the tip part 2, the curved part 3, and the guide part 4, and is airtight with the outside. An endoscope body (both not shown) is equipped with an endoscope scope 1 equipped with an exterior member 6 that maintains the ).

In this electronic endoscope device, as shown in FIG. 7, the endoscope 1 is attached to the body wall P.

The body cavity P between P. When treating an affected area or the like using the treatment tool 7 inserted into the patient's body, the tip portion 2 is positioned by fixing the bending angle of the curved portion 3.

(Problem to be solved by the invention) However, the body cavity P. is thicker than the thickness of the distal end portion 2, the curved portion 3, and the guiding portion 4, even if the bending angle of the curved portion 3 is fixed and the distal end portion 2 is positioned, the guiding portion 4 is Y1 in the figure. When it moves in the Y2 direction, the curved part 3 and the tip part 2 also move, resulting in the body cavity P. There is a problem in that the entire endoscope 1 moves within the scope, making it difficult to properly treat the affected area using the treatment tool 7.

The present invention has been made in response to the above-mentioned problems, and makes it possible to easily position the distal end within a body cavity, and to effectively treat the affected area using a treatment tool. The purpose is to provide an electronic endoscope device that can

[Structure of the Invention] (Means for Solving the Problems) The present invention provides at least a distal end portion having a solid-state image sensor and disposed on the insertion distal end side, and a bendable distal end disposed behind the distal end portion. and a guiding part disposed behind the curved part, the exterior member being provided across the tip part, the curved part, and the guiding part, and maintained in an airtight state with the outside. In the electronic endoscope device having an endoscope scope, at least a part of the exterior member is formed of a telescoping member having stretchability, and a telescoping drive means is provided for making the telescoping member telescopic. It is characterized by:

(Function) When, for example, compressed air is sent into the endoscope from the endoscope main body side using the telescopic drive means, the telescopic member expands like a balloon, comes into contact with the body wall and becomes fixed, and the tip The parts can be positioned without moving.

(Example) An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram for explaining the configuration of an electronic endoscope device according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the configuration of an endoscope, and FIG. Figures 4 and 5 are diagrams for explaining the operation of the embodiment, and Figures 4 and 5 are diagrams for explaining other embodiments of the present invention, and Figure 4 is a diagram for explaining the shape of the elastic member of the curved part. FIG. 5 is a diagram for explaining the operation of another embodiment of the present invention.

The electronic endoscope device 31 shown in FIG.
1 and an endoscope main body 32.

The endoscope main body 32 includes a display means 33 capable of displaying a subject image photographed by the endoscope scope 11, a pneumatic pressure adjustment device 38 as a telescopic drive means, and an endoscope scope 1.
1 and a connector case 34 that connects the endoscope main body 32.

The air pressure adjustment device 38 includes a pump 36 that sends compressed air into the endoscope 11, and a switching valve 35 that allows switching between supply and exhaust of the compressed air. Via endoscope scope 1
It is designed to send compressed air to 1.

As shown in FIG. 2, the endoscope 11 includes a distal end portion 12 having a solid-state image sensor 15 and disposed on the insertion distal side.
, a bendable curved section 13 disposed behind this tip section 12 , and a guide section 1 disposed behind this curved section 13 .
4, the tip portion 12, the curved portion 13, and the guiding portion 14.
It has exterior members 24 and 24a that are provided over the area and maintained in an airtight state with the outside.

The front end surface of the distal end portion 12 includes an illumination window 16.16 that illuminates the inside of the body cavity, an air supply port 17 that sends air etc. into the body cavity, a water supply cleaning port 19 that sends cleaning liquid etc. into the body cavity, and a suction window 16. A forceps (processing tool) outlet 18 that also serves as an opening and an observation window 20 are formed, and the rear part is covered with an exterior member 24 to maintain an airtight state.

The curved portion 13 is covered with an elastic member (exterior member) 24a on the outside, and has approximately ring-shaped curved members 23, 23, .

The guiding portion 14 is covered with an outer covering member 24 to maintain an airtight state.

In the figure, 21 is a connection line for the solid-state image sensor, and 22 is a light lead-out line.

Next, referring also to FIG. 3, the electronic endoscope device 3 having the above configuration will be described.
The effect of No. 1 will be explained.

First, in an examination room, an operator (such as a doctor) inserts the endoscopic scope 11 into the body of a subject (patient) and starts endoscopic examination. Then, the endoscope 11 is inserted into the body wall P, and the body cavity P between P. When the processing tool 2 is inserted into the
5 is used to treat an affected area, etc., the distal end portion 12 is placed at an appropriate distance from the affected area to be treated. Then, from the endoscope main body 32, the switching valve 35 is set to the air supply state, and the connector case 34 is supplied from the pump 36.
and compressed air through the supply and exhaust pipe 37 to the endoscope]
, send within 1. At this time, as shown in FIG. 3, the extensible member 24a, which is the exterior member of the curved part, expands like a balloon and comes into contact with the body wall P and becomes fixed, thereby preventing the distal end 12 from moving. Positioning can be done without any need.

Next, while looking at the display means 33, the operator remotely operates the treatment tool 25 from the main body to treat the affected area. After the processing is completed, when the processing tool 25 is to be removed, compressed air is sent out from within the endoscope 11, the telescopic member 24a is returned to its original state, and then the endoscope 11 is moved.

As described above, according to the electronic endoscope device of one embodiment of the present invention, it is possible to easily position the distal end within the body cavity, and it is possible to properly treat the affected area using the treatment tool. It can be carried out.

It also has the advantage that it can be used as a substitute for balloons normally used for esophageal stenosis, hemostasis, and the like.

Next, other embodiments of the present invention will be described with reference to the drawings.

Since the structure is almost the same as that of the above embodiment, only the main parts will be explained, and the same members will be given the same reference numerals and the explanation will be omitted.

In another embodiment of the present invention, the elastic member 24 of the bending portion 13
The shape of a has a thick part 24b and a thin part 24c, as shown in FIG.

The operation of the electronic endoscope device having the above configuration will be explained.

First, in the examination room, the operator
1 is inserted into the body of the subject and the endoscopy is started. Then, the endoscope 11 is inserted into the body wall P, and the body cavity P between P. When treating an affected area or the like using the treatment tool 25 inserted into the patient's body, the distal end portion 12 is placed at an appropriate distance from the affected area to be treated. Then, when compressed air is sent from the endoscope main body 32 into the endoscope scope 11 from the pump 36 via the connector case 34 and the supply/exhaust pipe 37 with the switching valve 35 in the air supply state, 5
As shown in the figure, the thick part 24b does not expand, and the thin part 24c expands like a balloon and comes into contact with the body wall P and becomes fixed, thereby preventing the distal end 12 from moving. Can be positioned. Next, while looking at the display means 33, the operator remotely operates the treatment tool 25 from the main body to treat the affected area. In addition, when removing the processing tool 25 after the processing is completed, compressed air is supplied to the endoscope 1.
After the thin portion 24c is returned to its original state, the endoscope 11 is moved.

Further, similar to the above embodiment, there is also the effect that it can be used as a substitute for a balloon normally used for esophageal stenosis, hemostasis, etc.

As described above, the electronic endoscope device according to the other embodiments of the present invention can also facilitate the positioning of the distal end within the body cavity, and the treatment of the affected area etc. can be performed well using the treatment tool. It can be carried out.

Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to the above embodiments, and can be modified as appropriate within the scope of the gist thereof.

For example, in the above embodiments, the extensible member is formed on the curved portion, but it may be formed on the tip portion or the guiding portion.

Further, the telescopic driving means is not limited to the air pressure adjusting device, and can be modified in various ways as long as the telescopic member is configured to be telescopic.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to easily position the distal end within the body cavity, and the treatment of the affected area, etc. can be performed satisfactorily using the treatment tool. We can provide electronic endoscopy equipment.

[Brief explanation of drawings]

FIG. 1 is a diagram for explaining the configuration of an electronic endoscope device according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the configuration of an endoscope, and FIG. Figures 4 and 5 are diagrams for explaining the operation of the embodiment, and Figures 4 and 5 are diagrams for explaining other embodiments of the present invention, and Figure 4 is a diagram for explaining the shape of the elastic member of the curved part. FIG. 5 is a diagram for explaining the operation of another embodiment of the present invention, FIG. 6 is a diagram for explaining the configuration of a conventional endoscope, and FIG. 7 is a diagram for explaining the conventional example. FIG. 2 is a diagram for explaining the problem. 11... Endoscope scope, 15... Solid-state image sensor,
DESCRIPTION OF SYMBOLS 12... Tip part, 13... Curved part, 14... Guide part, 24... Exterior member, 24a... Expandable member, 31
...electronic endoscope device, 32...endoscope body, 33.
...Display means, 35...Switching valve, 36...Pump, 38...Pneumatic pressure adjustment device. 2′、゛・）

Claims (3)

[Claims] (1) At least a distal end portion having a solid-state image sensor and disposed on the insertion distal side, a bendable bending portion disposed behind the distal end portion, and a guiding portion disposed behind the curved portion. In an electronic endoscope device having an endoscope, the exterior member is provided across the distal end portion, the curved portion, and the guide portion, and is provided to maintain an airtight state with the outside. An electronic endoscope apparatus, characterized in that at least a part of the exterior member is formed of an elastic member having elasticity, and is provided with an expansion/contraction drive means that allows the elastic member to expand and contract. (2) The electronic endoscope device according to claim 1, wherein the extensible member is formed in the curved portion. (3) The electronic endoscope device according to claim 1 or 2, wherein the expansion/contraction drive means is an air pressure adjustment device.