JP2005312756A - Liquid pressure-feeding device for endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid pressure-feeding device for feeding water or dyeing liquid which is used with an endoscope for washing or dyeing an area to be observed by the endoscope, such as the stomach or the intestine, quickly, easily and efficiently. <P>SOLUTION: The liquid pressure-feeding device for an endoscope has a pair of air supply tubes 4a and 4b derived from an air compressor 1. One air supply tube 4a is inserted into and connected airtightly to an insertion hole 5b of a plug body 5a of a watertight container 5, and the other air supply tube 4b is inserted into and connected airtightly to an insertion hole 6b of a plug body 6a of a dyeing liquid-tight container 6. At the same time, a water supply tube 7a derived from the watertight container 5 and a dyeing liquid supply tube 7b derived from the dyeing liquid-tight container 6 are connected to liquid inlet nozzles 8a and 8b of a switch cock 8 respectively. A liquid pressure-feeding tube 9 connected to a liquid outlet nozzle 8c of the switch cock 8 is inserted into a forceps insertion hole of an endoscope. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

TECHNICAL FIELD OF THE INVENTION

  The present invention relates to a liquid pumping apparatus applied to various endoscopes.

Conventional technology

  Various conventional endoscopes are used for observing the required part of the esophagus, stomach, duodenum, small intestine, large intestine, rectum, etc., but when the required part of the subject is washed or stained Next, insert a small scope such as a videoscope or a fiberscope to be inserted into the subject of the endoscope into the subject, and use a syringe to remove water or staining solution from the forceps opening provided in the endoscope. Injection and outflow from the tip of a forceps insertion hole penetrating the scope are performed to wash or stain the site.

However, when injecting water or staining solution from the forceps hole of the endoscope with a syringe and washing or staining a predetermined part, it flows down from the tip of the forceps through the cylindrical inner wall of the forceps insertion hole. Therefore, the cleaning power and staining power are insufficient, and the amount of water or staining liquid in the syringe is small, so in order to perform sufficient cleaning and staining, It is necessary to repeat the operation of injecting several times with a syringe, and such manual operation is troublesome and troublesome and takes a long time, and the operation is extremely inefficient. The greater the area of a given site to be cleaned or dyed, the greater the inefficiency of that work. Thus, the syringe often results in inadequate cleaning and staining, and the image and video coupled to the camera and video coupled to the endoscope are obscured, leading to the inconvenience of making a correct diagnosis.
It is desired to develop a highly efficient apparatus that can eliminate such a conventional problem and selectively and easily perform cleaning and staining of a required part.
An object of the present invention is to solve such a conventional problem and to provide an endoscope liquid pumping apparatus that satisfies the above-mentioned demands.

In the present invention, two air supply tubes are led out from the air compression device, and one of the air supply tubes is connected so as to open to the space above the liquid level in the watertight container, while the other air supply tube is connected. The air tube is hermetically connected so as to open to communicate with the space above the liquid level in the staining solution sealed container, and the water feeding tube opened to communicate with water in the water sealed container and the staining in the staining solution sealed container. The endoscope is provided with a liquid pressure supply tube connected to each liquid inlet provided in the switching cock, and a liquid pressure feeding tube connected to the liquid outlet provided in the switching cock. The present invention resides in an endoscope liquid pumping device characterized by being freely connectable to a forceps opening.
Furthermore, the present invention provides the above-described apparatus according to the present invention, wherein the air compression device and one of the water-sealed container and the dyeing liquid container are placed on the carriage, and a desired height is set on the support column erected on the carriage. The other liquid-sealed container is attached and installed at the vertical position, and the switching cock is installed and installed at the desired height position on the support column. One of the two air supply tubes led out from the air compression device The lead-out end side of the air supply tube is opened to communicate with the space above the liquid through a connecting pipe that is airtightly inserted into an insertion hole provided in a plug body that seals the mouth of the liquid hermetic container on the carriage. The other air supply tube is opened to communicate with the space above the liquid via a connecting tube that is airtightly inserted into an insertion hole provided in a plug body that seals the mouth of the liquid hermetic container attached to the column. Prepare two liquid feeding tubes, one of them One end of the feed tube is opened to the liquid through a connecting tube that is airtightly inserted into an insertion hole provided in the plug of the liquid hermetic container on the carriage, while the other end projects into the switching cock. The other end of the liquid feeding tube is connected to the tube opening for fluid communication, and the other end of the liquid feeding tube is opened to communicate with the liquid through a connecting tube that is airtightly inserted into the insertion hole provided in the stopper of the liquid hermetic container attached to the column. The other end is connected to a liquid inflow tube port projecting from the switching cock, and a liquid pressure feed tube is connected to a forceps port provided in the endoscope to the liquid outflow tube port projecting from the switching cock. A liquid pumping device for an endoscope characterized by the above.
Furthermore, the present invention provides the above-described apparatus according to the present invention, wherein the support column is cylindrical, and an intermediate portion of the air supply tube connected to the liquid-tight container attached to the cylindrical support column from the air compression device is connected to the cylindrical support column. An endoscope liquid pumping apparatus characterized by being housed in a hollow hole.

According to the first aspect of the present invention, when cleaning or staining a required part to be observed, a hydraulic pressure supply tube connected to a liquid outlet of the apparatus is connected to a forceps port, and a compressor of an air compression device is operated. In this state, the switching cock is selectively switched so as to communicate with the liquid inlet connected to the water feeding tube or to communicate with the liquid inlet connected to the staining liquid feeding tube. Water or staining liquid with high air pressure is discharged from the distal end of the forceps insertion hole of the endoscope scope to a predetermined site with vigorous drainage. Washing or staining can be performed quickly and easily with high efficiency.
According to the invention of claim 2, the apparatus of the invention of claim 1 can be used by reducing the occupied space and transporting it to a desired location.
According to the invention of claim 3, since the intermediate portion of the air supply tube is housed in the cylindrical column, and when the intermediate portion of the relatively long air supply tube is exposed to the outside, It is possible to prevent the work from being obstructed due to contact with the resulting worker or the air supply tube from being detached, and the work can be performed smoothly and safely.

Next, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a front view of a part of an example of the apparatus of the present invention, and FIG. 2 shows a side view thereof. In the drawings, reference numeral 1 denotes a case-type air compression device incorporating a compressor and an air pressure regulating valve (not shown). On the front panel of the case, a power switch 1a, a pressure gauge 1b, and an air pressure regulating valve operating knob 1c are disposed. Further, the upper surface is provided with a portable litter 1d, and the lower surface thereof is provided with wheels 1e and 1e so that it can be carried and moved to an appropriate position. If is a tube holder, 1 g is an air intake.

A pressure regulating valve is intervened in the middle of the outlet pipe of the compressed air led out from the compressor in the air compression device 1, and two cylindrical ports 2 and 2 branched from the outlet end side of the outlet pipe are provided in the front of the case. The two holes 3 and 3 are inserted and protruded to the outside, respectively, and air pipes 4a and 4b made of synthetic resin such as soft vinyl chloride having an appropriate predetermined length are inserted into the respective cylindrical ports 2 and 2. One end of each is fitted and attached and connected. The other end of one of the air supply tubes 4a is hermetically inserted into an insertion hole 5b provided in a plug body 5a in which the mouth of a water-tight sealed container (hereinafter abbreviated as a water sealed container) 5 is sealed, and the lower end is It connects with the upper end part of the connection pipe 5c opened to the space part above the liquid level of the water W in this container 5 and opened.
The other end of the other air supply tube 4b is airtightly inserted into an insertion hole 6b provided in a plug body 6a in which a mouth of a sealed container 6 (hereinafter abbreviated as a stained liquid sealed container) 6 is sealed, In addition, the lower end is connected to the upper end portion of the connecting pipe 6 c that is opened to communicate with the space above the liquid level of the staining liquid D in the container 6.

Furthermore, two liquid feed tubes 7a and 7b made of synthetic resin each having a desired predetermined length are prepared, and one end of one of the liquid feed tubes 7a is provided on the plug body 5a of the water-tight container 5 described above. The lower end of the connecting pipe 5c ′ is connected to the upper end portion of the connecting pipe 5c ′ that is opened airtightly into the water in the sealed container 5. Preferably, as shown in the figure, the connecting pipe 5c ′ is opened to communicate with the deeply inserted position up to the vicinity of the bottom surface of the sealed container 5. The other end of the liquid feeding tube 7 a is connected to the switching cock 8 by being fitted and inserted into a liquid inflow cylinder port 8 a protruding from the switching cock 8. One end of the other liquid feeding tube 7b is hermetically inserted into an insertion hole 6b 'provided in the stopper 6a of the staining liquid sealed container 6 and the lower end communicates with the staining liquid D in the sealed container 6. It connects with the connecting pipe 6c 'opened. As shown in the figure, the connecting pipe 6c 'is preferably opened to communicate at a position where it is inserted deeply into the vicinity of the bottom surface of the sealed container 6. The other end side of the liquid feeding tube 7 b was fitted and connected to a liquid inlet tube port 8 b protruding from the switching cock 8 and connected to the switching cock 8. In the illustrated example, the liquid inflow cylinder ports 8 a and 8 b disposed in the switching cock 8 are disposed at positions opposite to each other on the switching cock 8 and in the illustrated example above and below the switching cock 8.
Further, the switching cock 8 is further provided with an additional liquid outflow cylindrical port 8c which is projected from the end, and one end of a liquid pressure feeding tube 9 made of synthetic resin is fitted and inserted into the switching cock 8. Is connected to a forceps port (not shown) provided in the endoscope so as to be freely mounted.
In the drawings, reference numerals 5d and 6d denote screw caps that are screwed onto screw threads provided on the necks of the liquid hermetic containers 5 and 6, respectively. Thereby, the outer periphery collar part of this stopper 5a, 6a was crimped | bonded to the opening edge of this container 5 and 6, and airtightness was strengthened.

  As shown in FIGS. 1, 2, and 3, the switching cock 8 is slidably rotatable on the inner peripheral wall surface of the socket 8A and the circular hole of the socket 8A, and includes an operation lever 8B1 on the outside. The socket 8A is formed on the outer peripheral wall surface of the socket 8A so as to be perpendicular to the water inlet tube 8b protruding downward, the dye inlet tube 8b protruding upward, and the cylinder ports 8a and 8b. The liquid outflow cylinder port 8c is disposed at a position opposite to the operation lever 8B1, while one end of the rotatable switching plug 8B is always aligned with the liquid outflow cylinder port 8c. A flow passage 8B2 composed of a through hole is provided, and the other end of the L-shaped flow passage 8B2 is aligned with the water inflow tube port 8a or communicated with the dye solution inflow tube port 8b by the rotation of the switching plug 8B. The liquid flow is performed selectively. Water or dyeing liquid can selectively flow out to the hydraulic pressure supply tube 9 connected to the cylinder port 8c, and when not in use, the L-shaped flow passage 8B2 is rotated to allow the above two liquids to flow. Both the cylinder ports 8a and 8b are positioned so as to be inconsistent so that the outflow of water and the staining liquid to the hydraulic pressure supply tube 9 can be stopped. Thus, the endoscope liquid pumping apparatus of the present invention is configured.

Next, a usage example and operation of the above-described apparatus of the present invention will be described.
An example of the use of this apparatus will be described in the case where a predetermined part of the stomach of a subject is washed or stained. The outer end of the hydraulic pressure supply tube 9 connected to the liquid outlet tube port 8c, that is, the free end portion. Is inserted into a forceps opening provided in the endoscope, and the endoscope having a small diameter is orally exposed to the subject, for example, in the stomach. In this state, the compressor of the air compression device 1 is started. Then, compressed air adjusted to a desired appropriate atmospheric pressure is supplied into the water-sealed container 5 and the staining solution-sealed container 6 through the air supply tubes 4a and 4b, and the containers 5 and 6 are supplied. A suitable compressed air pressure, for example, a pressure of about 1.5 Kg / cm ² is applied to the water and the dyeing liquid in the container, and the water and the dyeing liquid in the containers 5 and 6 are put into the liquid feeding tubes 7a and 7b. And keep the dyeing solution pumped. Next, the switching cock 8 in the shut-off state is rotated, and as shown by a solid line in FIG. 3, the L-shaped flow passage 8B2 is aligned with the liquid inflow cylinder port 8a to which the water feed tube 7a is connected. When the pressure is instantaneously applied, the water is vigorously discharged from the distal end of the scope to a predetermined part of the stomach inner wall through the forceps opening to which the hydraulic pressure supply tube 9 is connected. The predetermined part can be sufficiently cleaned with a force in a short time. In addition, since a required amount of water is continuously supplied, a desired area can be cleaned with high efficiency. When it is intended to stain a predetermined tissue, the switching cock 8 is rotated so that the L-shaped flow passage 8B2 is aligned with the liquid inflow cylinder port 8b to which the staining liquid feed tube 7b is connected. In such a case, the above-mentioned staining liquid with high pressure is discharged from the tip of the forceps hole communicating with the fluid pressure supply tube 9 toward the predetermined portion as described above, and thus has a strong staining power. Thus, sufficient staining of the site can be performed rapidly and continuously for a desired time.
When it is desired to temporarily stop or end the washing process or the dyeing process, the switching cock 8 is connected to the L-shaped flow passage 8B2 through the water inflow tube port 8a and the dye solution inflow tube port 8a. What is necessary is just to rotate to the position which does not align with any.
In this way, with this apparatus, the washing process with water or the dyeing process with the staining solution is performed by simply connecting the hydraulic pressure supply tube to the forceps opening of the endoscope and selectively rotating the switching cock 8. It can be performed efficiently with a simple operation.

  In the apparatus of the present invention, the water sealed container 5, the dye liquid sealed container 6, the air compression device 1, and the switching cock 8, which are the main constituent members, are arranged at desired locations in the chamber, respectively. Of course, the other constituent members, tubes 4a, 4b, 7a, 7b and 9, may be constructed by connecting them as described above, using tubes of desired lengths, respectively. For convenience of use and to occupy as little space as possible, it is preferable to collect all these components in one place, and to move on the floor so that it can be moved to a desired location for use. More preferably.

The drawing shows such a preferred inventive device. This will be described in detail below.
One of the air compression device 1 and the water-sealed container 5 or the dyeing liquid-sealed container 6, in the illustrated example, the water-sealed container 5, for example, a transparent bottle having a capacity of 1 liter Are mounted on the upper surface of a cart 10 having a square mounting surface of, for example, 40 centimeters square and provided with casters 10a, 10a,. A column-shaped column 11 having a height of about 1.4 meters is erected on the mounting surface of the carriage 10 by screwing the lower end thereof, and the staining solution sealed container 6 made of a transparent bottle having a capacity of 500 ml is disposed on the column 11. Install and place on the side of the top as follows. That is, in the illustrated example, a desired mounting table 12 is prepared as a basket-shaped mounting table 12 composed of a large metal or synthetic resin window frame through which the staining liquid sealed container 6 can be observed from the outside. An annular fastener 14 made of metal or synthetic resin that can be tightened via a metal or synthetic resin connecting arm 13 extending horizontally is provided on the side surface, and the annular fastener 14 is attached to the column 11. A fitting 15 such as a set screw is inserted into a hole provided in an ear portion 14a, 14a that protrudes from both ends of the annular metal fitting 14 at a desired position and is opposed to the annular metal fitting 14 at a desired position. The cage-shaped mounting table 12 was installed on the side of the basket-shaped mounting table 12, and the staining solution sealed container 6 was accommodated and mounted in the basket-shaped mounting table 12.

In addition, the switching cock 8 is also installed at the height position where the operator can easily operate the switching cock 8 at the top of the support column 11 as follows. That is, a metal or synthetic resin mounting table 16 is preliminarily formed on the side of the additional annular fastener 14 having the same configuration as described above, and in the illustrated example, a rectangular shape opened from the front surface and the upper surface of the square to the upper back surface. The mounting table 16 is welded to the annular fastener 14 on the side surface thereof, and the annular fastener 14 is fitted and inserted from the upper end of the column 11, and at the preferred height position, and preferably After the water-tight container 5 is positioned on the same side as the water-tight container 5, the switch cock 8 is fixed to the column 11 with a fastening tool 15 such as a set screw. It is placed on the mounting table 16.
In the example shown in the figure, a vertical mounting table 16 for mounting the switching cock is attached to the support column 11 by fitting through the upper end of the support column 11 through the annular fastener 14, and then for mounting the staining solution sealed container. Although the mounting table 12 is fitted and inserted from the upper end of the support column 11 via the annular fastener 14, it goes without saying that the mounting order may be reversed.
In this case, as shown in the figure, the operation lever 8B1 of the switching cock 8 protrudes from the upper wall surface through the front opening 17a of the mounting table 16, and the water inlet tube port 8a of the switching cock 8 is The dyeing solution inflow cylinder port 8b protrudes outward from the bottom wall through a through hole 16a provided in the bottom wall of the mounting table 16, and protrudes outward from the upper surface opening 17b of the vertical mounting table 16. In addition, the liquid outflow cylinder port 8c protrudes more outward from the back wall through an open surface 17c in which the upper part of the back wall of the saddle type mounting table 16 is cut out.

  One end of a relatively short pressure feed tube 4a is fitted and inserted into one of the two air feed tube connection cylinder ports 2 and 2 disposed in the air compression device 1 placed on one side of the carriage 10. Then, the other end side is connected to the water-tight container 5 placed on the other side of the carriage 10 as described above, and one end of a relatively long pumping tube 4b is connected to the other cylinder port 2, and the other end is connected to the other end. As described above, it is connected to the hermetically sealed container 6 containing the staining liquid housed in the basket-type mounting table 12 attached to the upper part of the column 11 as described above.

Thus, in the relatively long pumping tube 4b whose both ends are connected and fixed as described above, the intermediate portion 4b1 tends to obstruct the operation. Therefore, as clearly shown in FIG. 1, a hollow cylindrical column 11 made of a pipe is used as the column 11, and a hole 11 a for inserting an air supply tube is located in the lower portion of the column 11 near the air compression device 1. Using the opened one, the pressure feeding tube 4b is inserted through the hole 11a, for example, and led out from the upper end opening through the hollow inside of the cylindrical column 11, and thus the intermediate portion 4b1 of the pressure feeding tube 4b is connected to the cylinder. When accommodated in the column-shaped column 11, when the intermediate portion 4b1 of the pressure-feed tube 4b is outside the column 11, problems such as an obstacle to the operator are eliminated, and the operation of the switching cock 8 is smoothly performed. It is preferable to be able to do so.
Further, with respect to the liquid feeding tubes 7a and 7b, one liquid feeding tube 7a is connected to the water-sealed container 5 at one end thereof as described above, and the other end is directed downward from the bottom surface of the switching cock 8 positioned above it. Is inserted into and connected to the water inflow cylinder port 8a. Furthermore, one end of the liquid feeding tube 7b is connected to the staining liquid sealed container 6 in the basket-type mounting table 12 installed on the upper portion of the column 11, as described above, and the other end is directed upward of the switching cock 8. It connects to the protruding dye liquid inflow cylinder port 8b as described above.
Furthermore, one end of the liquid pressure supply tube 9 is connected to the liquid outflow tube port 8c protruding from the back surface of the switching cock 8 when the apparatus is used, and the free end side is connected to the forceps of the endoscope. Connect to mouth.
In addition, you may make it the watertight container 5 on the trolley | bogie 10 accommodate and mount on the cage | basket | car type mounting base 12 'like illustration. Moreover, the wheel 1e of the air compressing device 1 placed on the carriage 10 may be eliminated, and thus a stable placement on the carriage 10 can be obtained.

  As described above, when the device of the present invention is configured on the carriage 10 as described above, the occupied space can be reduced, and the device can be moved to a desired place to be used. The convenience of not getting in the way of putting away in the corner of the.

  In addition, you may make it install in the support | pillar 11 the cyclic | annular support member 19 which receives the at least 1 flat plate 18 in the intermediate part by the additional cyclic | annular fastener 14 in the intermediate part. Further, as shown in the drawing, the intermediate portion 7a1 of the hydraulic pressure feeding tube 7a can be held by the tube holder 20 fitted to the column 11 and fastened to prevent wobbling as required.

1 is a front view of a part of an apparatus according to an embodiment of the present invention. The side view which cut off a part of the apparatus. The enlarged cutting side view of the operating state of the switching cock of the apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air compression apparatus 4a, 4b Air supply tube 5 Water-sealed container, water-containing airtight container, liquid airtight container 6 Stain liquid airtight container, airtight container with dyeing liquid, liquid airtight container 7a Water air supply tube, liquid air supply tube 7b Tube, liquid feed tube 8 switching cock 8a liquid inflow cylinder port 8b liquid inflow cylinder port 8c liquid outflow cylinder port 9 liquid pressure supply tube 10 carriage 11 column 12, 16 mounting table, basket type mounting table

Claims (3)

  Two air supply tubes are led out from the air compression device, and one of the air supply tubes is connected so as to open to the space above the liquid level in the water-tight container, while the other air supply tube is dyed. Airtightly connected to the space above the liquid level in the liquid hermetic container so as to open, and communicated with the water feeding tube opened in water in the water hermetic container and the staining liquid in the dyeing liquid hermetic container. The dyeing solution feeding tube opened is connected to each liquid inlet provided in the switching cock, while a liquid pressure feeding tube connected to the liquid outlet provided in the switching cock is connected to the forceps port provided in the endoscope. Endoscopic liquid pumping device characterized by being freely connectable.   Place one of the air compression device and the water-sealed container or the dye liquid container on the carriage, and install the other liquid-sealed container at the desired height on the column that stands on the carriage. Further, a switching cock is attached to the support column at a desired height position, and of the two air supply tubes led out from the air compression device, the lead-out end side of the one air feed tube is placed on the carriage. The other air supply tube was attached to the column so that it could be opened to the space above the liquid through a connecting tube inserted in an airtight manner in an insertion hole provided in the plug that seals the mouth of the liquid-sealed container. The liquid-sealed container is opened to communicate with the space above the liquid through a connecting tube that is hermetically inserted into the insertion hole provided in the stopper for sealing the mouth of the liquid-sealed container, and two liquid feeding tubes are prepared. Connect one end of one liquid feed tube to the liquid-tight container on the carriage. The other end is connected to the liquid inlet tube projecting from the switching cock, and the other end is connected to the liquid inlet tube through the connecting pipe that is airtightly inserted into the insertion hole provided in the stopper. One end of the liquid-tight container attached to the support column is opened to the liquid via a connecting tube that is airtightly inserted into the insertion hole provided in the stopper, and the other end is provided for the liquid inflow projecting from the switching cock. The endoscope according to claim 1, wherein the endoscope is connected to a cylinder port, and further, a liquid feed pipe is connected to a forceps port provided in the endoscope at a liquid outlet cylinder port protruding from the switching cock. Liquid pumping device for mirrors.   The support column has a cylindrical shape, and an intermediate portion of an air supply tube connected from the air compression device to a liquid-tight container attached to the cylindrical support column is accommodated in a hollow hole of the cylindrical support column. The endoscope liquid pumping apparatus according to claim 2.

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