JP4426068B2 - Endoscopic forceps plug leak detection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a leakage detection device for an endoscopic forceps plug for detecting leakage from the closure membrane of the endoscopic forceps plug.
[0002]
[Prior art]
Endoscopes are generally provided with a treatment instrument insertion channel for inserting treatment instruments, and in the treatment instrument insertion port, which is the entrance of the endoscope, sewage or the like passes through the treatment instrument insertion channel. A forceps plug is attached to prevent ejection.
[0003]
Such a forceps plug is generally provided with a slit that is normally attached in a closed state that is detachably attached to a treatment instrument insertion port of an endoscope and is formed in a closed membrane made of a resilient material. It is designed to be pushed open by a treatment instrument inserted into the treatment instrument insertion port.
[0004]
[Problems to be solved by the invention]
The slit formed in such a closing membrane is worn or deformed by repeated insertion of the treatment instrument, and the sealing performance is lowered. Therefore, sewage or the like in the body may leak through the treatment instrument insertion channel and contaminate the surrounding area.
[0005]
Therefore, the present invention can detect in advance leakage from the slit formed in the closure membrane of the forceps plug and prevent leakage of sewage and the like in the body through the treatment instrument insertion channel. An object of the present invention is to provide a leak detection device for an endoscopic forceps plug.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the leakage detecting device for an endoscopic forceps plug of the present invention is a closed membrane whose base end is detachably attached to a treatment instrument insertion port of an endoscope and is normally closed. An endoscopic forceps plug leak detection device for detecting leaks from slits of an endoscopic forceps plug in which a slit formed in the endoscope is pushed open by a treatment instrument inserted into a treatment instrument insertion port. Between the forceps plug connecting member that is airtightly connectable to the proximal end side of the forceps plug and the air supplying device connecting member that is airtightly connected to the air supplying device that sends out the pressurized gas. It is a communication connection.
[0007]
In addition, a liquid storage member is provided in the middle of the pipe to store the liquid sent toward the forceps plug connection member by being pressurized by the pressurized gas passing through the air supply device connection member. It may be.
[0008]
Further, a pressure gauge for detecting and displaying the pressure in the pipe line may be connected in the middle of the pipe line, and a check valve for restricting the backflow from the forceps plug connecting member side is arranged. May be.
[0009]
Then, at least one of the forceps plug connection member and the air supply device connection member may be replaceable with a different shape.
Moreover, when the receiving port for sending pressurized gas into the endoscope is provided in the endoscope, the air-supplying device connecting member may be formed in the same shape as the receiving port.
[0010]
In addition, when the endoscope is provided with a receiving port for sending pressurized gas to the air supply line arranged in the endoscope, the air supply device connecting member is formed in the same shape as the receiving port. Also good.
[0011]
In addition, a grip portion for gripping with a fingertip may be formed in at least one of the forceps plug connection member, the air supply device connection member, and the conduit.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 15 shows an example of an endoscopic forceps plug 110 in which the proximal end portion is detachably attached to the treatment instrument insertion port 102 portion of the endoscope 100.
[0013]
The treatment instrument insertion port 102 is an inlet of the treatment instrument insertion channel 101, and in this embodiment, is formed in the shape of a so-called luer lock type injection needle and protrudes from the operation portion of the endoscope 100.
[0014]
The forceps plug 110 is entirely formed of a resilient rubber material, and includes a barrel-shaped portion 111 attached to the treatment instrument insertion port 102 and a lid-shaped portion 112 that is detachable from the inlet portion of the barrel-shaped portion 111. Become. The lid portion 112 is formed at the distal end of the connecting portion 113 attached to the treatment instrument insertion port 102 at the base end.
[0015]
A circular small hole 115 is formed in the center of the closure film 114 formed inside the barrel-like part 111 so as to face the treatment instrument insertion port 102, and the closure film 116 formed inside the lid-like part 112. A negative slit 117 is formed at the center.
[0016]
With such a configuration, the slit 117 that is normally closed is pushed open by a treatment instrument (not shown) inserted into the treatment instrument insertion port 102, and the small hole 115 is formed in the sheath of the treatment instrument to be inserted. Close contact with the outer surface contributes to prevention of leakage when the treatment instrument is inserted.
[0017]
FIG. 1 shows an endoscopic forceps plug leak detection device according to a first embodiment of the present invention, which includes a forceps plug connection member 2 that is airtightly connectable to the proximal end side of a forceps plug 110, and an additional forceps plug connection member 2; An air supply device connection member 2 that is airtightly connected to an air supply base 51 of an air supply device 50 that sends out pressurized gas is configured to be connected in communication by a conduit 3 made of a flexible tube or the like. .
[0018]
The forceps plug connection base 2 may be of the same shape as the treatment instrument insertion port 102 of the endoscope 100, for example, and the conduit 3 is formed of, for example, a tetrafluoroethylene resin tube or a silicon tube. The air supply device 50 may be anything as long as it sends out pressurized gas having a pressure suitable for the leakage inspection of the forceps plug 110.
[0019]
With this configuration, the anti-air supply device connection base 1 is connected to the air supply base 51 of the air supply device 50, the anti-forceps plug connection base 2 is connected to the forceps plug 110, and the forceps plug 110 is immersed in water. When the air feeding operation of the air feeding device 50 is turned on, if the closed state of the slit 117 of the forceps plug 110 is incomplete, the air passing through the slit 117 is observed as bubbles, so that leakage detection of the forceps plug 110 is detected. It can be performed.
[0020]
FIG. 2 shows a leak detection device for an endoscopic forceps plug according to a second embodiment of the present invention, which detects the pressure in the conduit 3 in the middle of the conduit 3 of the first embodiment. And a check valve 5 for restricting the backflow from the forceps plug connection base 2 side to the inside of the pipe 3.
[0021]
Thus, by arranging the pressure gauge 4, it is possible to always check whether or not the leakage inspection of the forceps plug 110 is performed with an appropriate pressure. By arranging the check valve 5, the forceps plug 110 is arranged. Even if dirt or the like is attached to the pipe 3, the inside of the pipe line 3 or the air supply device 50 is not soiled.
[0022]
As the air supply device 50, an endoscope leak tester as shown in FIG. 3 can be used. This leak tester is configured to send air pressurized by a manual rubber ball 53 from a pressure stabilizing balloon 54 to an air supply base 51 through an air supply tube 52. 55 is a pressure gauge for pressure confirmation, and 56 is a pressure relief valve.
[0023]
Such a leak tester air supply base 51 is generally configured such that when the endoscope 100 is provided with a receiving port for sending pressurized gas into the endoscope 100, it can be connected to the receiving port. ing.
[0024]
Therefore, when a leak tester is used as the air supply device 50, the air supply device connection base 1 of the leak detection device may be configured in the same shape as the receiving port provided in the endoscope 100.
[0025]
FIG. 4 shows an example of such an air supply device connection base 1, and the passage to the conduit 3 is normally closed by the valve body 1 a biased by the compression coil spring 1 b.
[0026]
When the air supply device connection base 1 is inserted into the air supply base 51 of the leak tester, the valve body 1a is pushed and moved by the projection 57 provided at the bottom of the air supply base 51, and the pipe 3 The passage to is now open. 1z is a gripping portion formed on the air-feeding device connection base 1 so that it can be gripped with a fingertip (the same applies to the following embodiments).
[0027]
As the air supply device 50, an air supply device incorporated in an endoscope light source device may be used. In that case, what is necessary is just to comprise the anti-air supply apparatus connection nozzle | cap | die 1 in the same shape as the air supply receptacle nozzle provided in the connector of the endoscope.
[0028]
FIG. 5 shows an example of such an anti-air supply device connection base 1, and the anti-air supply device connection base 1 formed in a cylindrical shape that always communicates with the pipe line 3 has a seal on the outer periphery in the vicinity of the tip. The O-ring 1c is attached and can be inserted into the air supply hole of the endoscope light source device.
[0029]
In addition, as shown in FIG. 6, a syringe can be used as the air supply device 50, and in that case, a cap 1 d having the same shape as the injection needle cap may be formed on the air supply device connection base 1. . The air supply device connection base 1 having such various shapes may be connected to the pipe line 3 in a replaceable manner.
[0030]
FIG. 7 shows an example of a forceps plug connection base 2 connected to the forceps plug 110, and a base 2a having the same shape as the injection needle base protrudes from a grip portion 2z formed so as to be gripped by a fingertip. ing.
[0031]
FIG. 8 shows an exchange adapter 20 that is detachably attached to the base 2 a shown in FIG. 7, and includes a female base part 2 b that engages with the base 2 a and a male base part 2 c that engages with the forceps plug 110. The forceps plug 110 of any shape can be accommodated by replacing the female base portion 2c in accordance with the shape or the like of the forceps plug 110 that is detachably screwed and is subject to leak detection.
[0032]
FIG. 9 shows a shape in which the pipe 3 is formed short and a hole 3a for allowing the air supply device connection base 1 and the forceps plug connection base 2 to communicate with each other is formed through the grip portion 3z. In this way, the pipeline 3 can also take various shapes.
[0033]
In the embodiment shown in FIG. 10, the liquid (in the middle of the conduit 3) is pressurized toward the forceps plug connection base 2 by being pressurized with a pressurized gas passing through the air supply apparatus connection base 1. A water storage tank 10 (liquid storage member) for storing water) is provided. However, if water is not put into the water storage tank 10, the air sent from the air supply device connection base 1 is sent out to the forceps plug connection base 2 as it is.
[0034]
Further, in the embodiment shown in FIG. 11, a pressure gauge 4 and a check valve 5 are added to the apparatus shown in FIG. The pressure gauge 4 may be connected to the pipe line 3A on the upstream side of the water storage tank 10 or may be connected to the pipe line 3B on the downstream side.
[0035]
By configuring in this way, water can be sent out toward the forceps plug 110 and leakage can be detected by checking whether water leaks from the slit 117, and the forceps plug 110 in the endoscopic examination can be detected. Corresponding to the use environment, it is possible to select leakage detection with gas or liquid.
[0036]
In addition, the connection of the pipe line 3 to the water storage tank 10 may connect the upstream pipe line 3A and the downstream pipe line 3B to the lid body 11 of the water storage tank 10, respectively, as shown in FIG. As shown in FIG. 13, the air supply device connection base 1 may be directly attached to the lid body 11 by omitting the upstream side pipe line 3 </ b> A. Alternatively, as shown in FIG. 14, both the air supply device connection base 1 and the forceps plug connection base 2 may be directly attached to the lid 11.
[0037]
In addition, the materials of the members used for each part of the leakage detection device for the forceps plug for endoscope are made of bottles such as tetrafluoroethylene resin and silicon resin so that the tubes can withstand autoclave sterilization and EOG gas sterilization. Is preferably a polysulfone resin, and the base is preferably a polysulfone resin, stainless steel, or a rust-proof metal.
[0038]
【The invention's effect】
According to the present invention, between the forceps plug connection member that is airtightly connectable to the proximal end side of the forceps plug and the air supply device connection member that is airtightly connected to the air supply device that sends out the pressurized gas, By connecting through the conduit, leakage from the slit formed in the closure membrane of the forceps plug can be detected in advance, and when using the endoscope, sewage in the body passes through the treatment instrument insertion channel. It is possible to prevent leakage.
[Brief description of the drawings]
FIG. 1 is a schematic view of a first embodiment of a leak detection device for an endoscopic forceps plug according to the present invention.
FIG. 2 is a schematic view of a second embodiment of the leak detection device for an endoscopic forceps plug of the present invention.
FIG. 3 is a side view of an endoscope leak tester used as an air supply device.
FIG. 4 is a side cross-sectional view of the first embodiment of the anti-air supply device connection base of the present invention.
FIG. 5 is a side sectional view of a second embodiment of the anti-air supply device connection base of the present invention.
FIG. 6 is a side sectional view of a third embodiment of the anti-air supply device connection base of the present invention.
FIG. 7 is a side sectional view of an embodiment of the forceps plug connection base of the present invention.
FIG. 8 is a side cross-sectional view of an exchange adapter that can be attached to and detached from the forceps plug connection base of the present invention.
FIG. 9 is a side cross-sectional view of an embodiment of a leakage detection device for an endoscopic forceps plug according to the present invention formed by shortening a duct.
FIG. 10 is a schematic view of a first embodiment of a leak detection apparatus for a water supply type forceps plug for endoscope according to the present invention.
FIG. 11 is a schematic view of a second embodiment of the leakage detection device for a water supply type endoscope forceps plug of the present invention.
FIG. 12 is a side cross-sectional view of the first embodiment of the water storage tank of the present invention.
FIG. 13 is a side sectional view of a second embodiment of the water storage tank of the present invention.
FIG. 14 is a side sectional view of a third embodiment of the water storage tank of the present invention.
FIG. 15 is a side cross-sectional view of an example of a forceps plug that is a target of leakage detection according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Air supply apparatus connection base 2 Forceps stopper connection base 3 Pipe line 4 Pressure gauge 5 Check valve 10 Water storage tank (liquid storage member)
20 Replacement Adapter 50 Air Supply Device 51 Air Supply Base 102 Treatment Tool Insertion Port 110 Forceps Plug 116 Closure Membrane 117 Slit 1z, 2z, 3z Gripping Part

Claims (8)

The proximal end side is detachably attached to the treatment instrument insertion port of the endoscope, and the slit formed in the normally closed membrane is pushed and opened by the treatment instrument inserted into the treatment instrument insertion port. A leakage detection device for an endoscopic forceps plug for detecting leakage from the slit of the endoscopic forceps plug,
A pipe line connects the forceps plug connection member that can be airtightly connected to the proximal end side of the forceps plug and the air supply device connection member that is airtightly connected to the air supply device that sends out pressurized gas. An apparatus for detecting leakage of an endoscopic forceps plug, comprising: A liquid storage member is provided in the middle of the conduit to store the liquid sent toward the forceps plug connection member by being pressurized by the pressurized gas passing through the air supply device connection member. The leak detection device for an endoscopic forceps plug according to claim 1. 3. The endoscopic forceps plug leak detection device according to claim 1, wherein a pressure gauge for detecting and displaying the pressure in the conduit is connected midway in the conduit. The endoscopic forceps plug according to any one of claims 1 to 3, wherein a check valve for restricting backflow from the forceps plug connection member side is disposed in the middle of the conduit. Leak detection device. The leak detection of the forceps plug for an endoscope according to any one of claims 1 to 4, wherein at least one of the forceps plug connection member and the air supply device connection member is replaceable with a different shape. apparatus. The air supply device connecting member is formed in the same shape as the receiving port when the receiving port for feeding pressurized gas into the endoscope is provided in the endoscope. The leakage detector for an endoscopic forceps plug according to any one of items 5 to 6. When the endoscope is provided with a receiving port for sending pressurized gas into an air supply line disposed in the endoscope, the air-supplying device connecting member is formed in the same shape as the receiving port. The leakage detection device for an endoscopic forceps plug according to any one of claims 1 to 5. The grip part for gripping with a fingertip is formed in at least one of the forceps plug connection member, the air supply device connection member, and the conduit. Endoscopic forceps plug leak detection device.

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