JPH045131Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a water supply device for an endoscope that supplies a certain amount of water to the water inlet of the endoscope.

[Prior Art] When observing the inside of an organ of the urinary system using an endoscope, it is necessary to constantly supply a certain amount of water to the organ to fill it with fresh water.

Conventionally, a water tank was placed in a high position, the water tank was communicated with the endoscope's water inlet, and the potential energy of the water in the tank was used to supply water from the tank to the organs through the endoscope. Ta.

[Problems that the invention aims to solve] As mentioned above, conventional water supply devices for endoscopes supply water using the potential energy of water in a water tank placed at a high position. It was difficult to delicately adjust the amount of water supplied in response to changes in water, which often caused problems in observation.
Furthermore, it is extremely difficult to supply water to organs in a short period of time by increasing the water supply pressure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a water supply device for an endoscope that eliminates such conventional drawbacks and can freely adjust the amount of water supplied.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the water supply device for an endoscope according to the present invention includes a water supply device connected to an air supply pump and pressurized by the air supply pump. A water tank into which pressurized air is sent, a water pipe that guides water pressurized by the pressurized air and pushed out of the water tank, and a water supply cap that is detachably attached to the water inlet of the endoscope and provided at the tip of the water pipe. and a pressure reducing valve that controls the air pressure in the water tank to adjust the amount of water sent from the water supply mouthpiece to the water inlet of the endoscope.

[Function] The air pressurized by the air pump pressurizes the inside of the water tank, and the water in the tank is sent through the water pipe from the water supply mouthpiece to the water inlet of the endoscope. By adjusting the pressure reducing valve, the air pressure inside the water tank is controlled, and the amount of water sent into the water inlet can be adjusted as desired.

[Example] An example of the present invention will be described based on the drawings.

In the figure, 1 is an endoscope, 2 is its insertion part, and 3
is the operation section. 4 is a forceps channel whose one end opens at the tip of the insertion section 2, and a suction tube (not shown) is connected to the forceps insertion port 5 provided in the operation section 3.
When connected, suction is performed from the tip of the insertion section 2 through the forceps channel 4.

Reference numeral 6 denotes a water supply tube having one end open at the distal end of the insertion section 2, and the other end communicating with a water supply port 8 via a water supply operation valve 7 provided in the operation section 3. Therefore, when a water supply device is connected to the water supply port 8 and the water supply operation valve 7 is operated, water is sent out from the tip of the insertion portion 2.

Reference numeral 9 denotes an air supply pump, which is housed in, for example, a light source device 10 of an endoscope, and an air supply port 11 is formed in the outer wall of the light source device 10 through which air pressurized by the air supply pump 9 is sent out. has been done.

20 is a water supply device according to the present invention, and a pressurized air intake fitting 21 is detachably connected to the air supply port 11. A pressurizing vent pipe 22 is connected to the pressurized air intake fitting 21, and a pressure reducing valve 23 that can be finely adjusted is inserted in the middle thereof.

24 is a water tank that stores water, and its lid 24
A pressurizing ventilation pipe 22 is connected to the pipe 24b that communicates with
One end is removably connected to the connecting cap 25. In addition, a water conduit 26 made of, for example, a polyethylene tube that opens near the bottom of the water tank 24 extends from the head of the water tank 24 and is detachably connected to the water supply port 8 of the endoscope through a water supply mouthpiece 27. has been done.

According to the above embodiment configured in this way, the air pressurized by the air supply pump 9 is delivered to the water tank 24 via the pressurized air intake fitting 21 and the pressurizing vent pipe 22.
The inside of the water tank 24 is pressurized, and the water in the water tank 24 is sent to the water supply mouthpiece 27 through the water conduit pipe 26 by the pressure, and water is supplied into the water supply port 8 of the endoscope.

By adjusting the pressure reducing valve 23, the air pressure inside the water tank is arbitrarily controlled, and the water inlet 8 of the endoscope is
The amount of water sent out can be adjusted. In this way, the water supply amount adjusting means for adjusting the amount of water sent to the water inlet 8 is formed by the pressure reducing valve 23.

In addition, as shown by the two-dot chain line in the figure, if the air supply port 11 and the water supply port 8 are directly connected with the tube 30, pressurized air is sent into the water supply tube 6 of the endoscope, and after the test is completed, The water inside the water supply tube 6 can be drained, etc.

[Effects of the invention] According to the water supply device for an endoscope of the present invention, the amount of water sent to the water inlet of the endoscope can be adjusted arbitrarily using the pressure reducing valve, so it is possible to adjust the amount of water sent to the water inlet of the endoscope at will, so that it is possible to adjust the amount of water sent to the water inlet of the endoscope at will. In response to this, the amount of water supplied to the organ can be freely controlled, allowing good and safe observation at all times. It is very safe because the water escapes and the pressure inside the tank does not increase any further, so no more water is supplied to the organ.Also, if there is an uneven amount of water leaking from the organ to the outside, Since the amount of water corresponding to the amount of water leakage is automatically supplied into the organ, the spread of the organ is always constant and stable, making endoscopic examination very easy to perform.

In addition, by setting the pressure of the air pump to a high level, water can be supplied to the organs in a short time if necessary, allowing for efficient examinations.
In addition, if the output of the air pump is unnecessarily large, once the pressure reaches a certain level, the air is exhausted by the pressure reducing valve and no excessive load is placed on the air pump, which reduces the durability of the air pump. is excellent.

[Brief explanation of the drawing]

The drawing is a front view of one embodiment of the present invention. 1...Endoscope, 2...Insertion section, 6...Water supply tube, 7...Water supply operation valve, 8...Water supply port, 9...
Air supply pump, 11... Air supply port, 20... Water supply device, 21... Pressurized air intake fitting, 22... Pressurizing vent pipe, 23... Pressure reducing valve, 24... Water tank, 2
6... Water pipe, 27... Water supply cap.

Claims (1)

[Scope of utility model registration request] a water tank connected to an air supply pump and into which pressurized air pressurized by the air supply pump is sent; a water conduit pipe that guides water pressurized by the pressurized air and pushed out of the water tank; A water supply cap that is detachably attached to the water supply pipe of the mirror, and a pressure reducing valve that controls the air pressure in the water tank to adjust the amount of water sent from the water supply cap to the water supply port of the endoscope. A water supply device for an endoscope, comprising: