JP3729969B2 - Pipe-line separation type endoscopic device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscope apparatus that enables a pipe unit to be separated from a main body having various pipes by a connecting portion, and relates to a configuration for sucking pipes other than the suction pipe.
[0002]
[Prior art]
A conventional electronic endoscope (scope), for example, includes a distal end portion having a CCD (Charge Coupled Device), an insertion portion, an operation portion, and a cable, and this cable is connected to a light source device and a processor device. . The endoscope body and cable are provided with a light guide and an electric signal line. Also, an air supply tube and a water supply tube for supplying air / water to the distal end, insertion of a treatment instrument, and contents in the observed body A suction tube or the like for sucking the air is disposed.
[0003]
According to such an endoscope, the light from the light source device is irradiated from the distal end portion through the light guide, and based on this, the object to be observed is imaged and observed by the CCD. Then, air is supplied and water is supplied from the distal end portion to the observation window or the like using the air supply tube and the water supply tube, and the treatment tube can be inserted and dirt and the like in the observed body can be sucked and discharged using the suction tube. Become.
[0004]
[Problems to be solved by the invention]
By the way, since the endoscope apparatus described above is used in a medical field, it is necessary to clean and sterilize the various pipes, and in order to efficiently perform the cleaning and sterilization, the pipes are attached and detached on the way. It has been proposed to separate freely. According to this, the cleaning with the cleaning brush becomes easy, and the separated conduit unit can be sterilized by an autoclave or the like.
[0005]
However, as described above, in the configuration in which the conduit unit is detachable from the endoscope main body side, for example, water remaining in the water pipe or the like leaks and droops when the connecting portion is removed. There is. That is, the water supplied to the observation window at the distal end during use of the endoscope remains in the water supply pipe, and this residual water leaks out when the conduit unit is removed during cleaning or the like. Therefore, there is an inconvenience that the water leakage contaminates the periphery.
[0006]
The present invention has been made in view of the above-mentioned problems, and the purpose thereof is a pipe that does not contaminate the surroundings by sucking water remaining in the pipe other than the suction pipe when the pipe unit is removed. An object of the present invention is to provide a separate endoscope apparatus.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a separate-type endoscope apparatus according to the present invention includes an endoscope main body in which various pipes including a suction pipe are disposed, and the main body side pipe. A pipe-separated endoscope comprising: a pipe unit having a pipe to be connected; and a connecting portion for making the pipe unit detachable from the main body and connecting the pipes in a fitting manner. And connecting the suction pipe of the connecting portion and the other pipe in the middle, and when the fitting between the suction pipes is released halfway, the suction pipe and the other pipe are in communication with each other. A bypass pipe is provided, and the inside of another pipe can be sucked from the suction pipe using the bypass pipe when the pipe unit is removed.
The invention described in claim 2 is characterized in that a shutter for closing the suction pipe is provided in the suction pipe of the main body side connecting portion.
[0008]
According to the above-described configuration, when the connecting pipes are removed, the bypass pipes provided between the suction pipes and other pipes, for example, water supply pipes, are pulled out halfway through the fitted pipes. Will be in communication. At this time, when a suction operation is performed through the suction pipe, the inside of the water supply pipe on the main body side is sucked, and water or the like is collected in the suction tank through the suction pipe on the pipe unit side.
[0009]
Further, when the connecting portion is detached, the main body side suction pipe can be closed by the shutter. In this case, there is an advantage that the suction effect of the pipes other than the suction pipe is enhanced.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 to 4 show the configuration of a pipe-separated endoscope apparatus according to the embodiment. First, the overall configuration will be described with reference to FIG. In FIG. 4, the electronic endoscope 10 includes a distal end portion 10 </ b> A having a CCD as an image sensor, an insertion portion 10 </ b> B, an operation portion 10 </ b> C, and a first cable 10 </ b> D, and a connector 11 of the first cable 10 </ b> D is a light source device 12. The signal cable 13 branched from the connector 11 is connected to the processor (image processing) device 14.
[0011]
That is, the first cable 10D includes a light guide 15 disposed from the distal end portion to the operation unit 10C and a signal line 16 for driving the CCD and reading an image signal. 15 is connected to the light source device 12, and the signal line 16 is connected to the processor device 14.
[0012]
A pipe unit 18 is detachably provided at the rear end portion of the operation unit 10 </ b> C through a connecting unit 19. The pipe line unit 18 includes a support portion 18A and a second cable 18B, and the second cable 18B is connected to the electromagnetic valve unit 20. Although the details will be described later, the electromagnetic valve unit 20 includes a tank portion 21 for suction or water supply and the like, and is connected to the processor device 14 via a signal line.
[0013]
1 and 2 show a detailed configuration of the periphery of the connecting portion 19 and the electromagnetic valve unit 20, FIG. 1 shows a state where the connecting portion 19 is removed halfway, and FIG. 2 shows a connected state. As shown in the figure, the operation unit 10C is provided with a suction button 23A, an air / water supply button (two-stage switch) 23B, and a hard copy button 23C, which are electrical switches. The operation unit 10C is provided with a suction pipe 24A and a water supply pipe 25A for sucking the contents in the observed body, and an air supply pipe and the like (not shown) are also provided.
[0014]
On the other hand, a suction pipe 24B and a water supply pipe 25B to be connected to the pipes 24A and 25A are arranged in the pipe unit 18, and these pipes 24B and 25B are arranged in the electromagnetic valve unit 20 respectively. Connected to. (There are various types and arrangements of these pipelines). The suction tube 24B is provided with a forceps port 28 via a branch tube 27. The forceps port 28 serves as an introduction port for a treatment instrument, and the suction tubes 24A and 24B also serve as a treatment instrument insertion channel. A cap 29 is attached to the forceps port 28 when not in use.
[0015]
Further, as the connecting portion 19, a receiving portion 31 having a male screw formed on the outer periphery is attached to the rear end portion of the operation portion 10C, and a female screw is formed on the inner periphery of the support portion 18A of the conduit unit 18. A fixing ring 32 is provided.
[0016]
As shown in FIGS. 1 and 2, the connecting portion 19 is provided with a protruding tube 24C on the suction tube 24B and a protruding tube 25C on the water supply tube 25B on the side of the conduit unit 18 (18A). On the side, coupling pipes 24D and 25D for fitting the protruding pipes 24C and 25C are formed, and the water feeding pipe 25A is connected to one coupling pipe 25D. A bypass conduit 33 that connects (connects) the coupling conduit 24D and the coupling conduit 25D in the middle is provided, and the water conduit 25A of the operation unit 10C (main body side) is provided from the bypass conduit 33. Water remaining inside can be sucked.
[0017]
Further, a shutter portion 34 that is opened and closed by the protruding tube 24C is provided between the coupling conduit 24D and the suction tube 24A. The shutter portion 34 presses a valve body 35 having a valve 35A similar to that used as a check valve or the like to the receiving portion 31 side by a spring 36. That is, as shown in FIG. 3, the valve element 29 is made of, for example, rubber so that the valve 29A of a size that closes the opening of the coupling conduit 24D is tilted forward and backward with the fulcrum portion 29B as an axis. Composed. According to the shutter portion 34, the projection tube 24C moves forward and backward, so that it opens when the connecting portion 19 is attached and closes when the connecting portion 19 is removed.
[0018]
Next, the configuration of the electromagnetic valve unit 20 shown in FIG. 1 will be described. The electromagnetic valve unit 20 includes an electromagnetic valve unit 40 for opening and closing each of the suction pipe 24B, the water supply pipe 25B, and the air supply pipe 38B, a driving pump 41, and an operation control of the suction button 23A of the operation unit 10C. A control circuit 42 is provided for inputting a signal to control the electromagnetic valve unit 40 and the like. As the tank portion 21, a suction tank 21A and an air / water supply tank 21B are arranged.
[0019]
The embodiment is configured as described above. When the endoscope is used, as shown in FIG. 2, the pipe unit 18 is moved to the operation unit 10 </ b> C by screwing the fixing ring 32 and the receiving unit 31. Connected. In this state, the bypass conduit 33 is blocked by the projecting tubes 24C and 25C on the conduit unit 18 side, and the valve 35A of the shutter portion 34 is pushed down by the projecting tube 24C to be in the open state.
[0020]
On the other hand, when removing the pipe line unit 18 for cleaning or the like, the suction button 23A in FIG. 1 is operated to operate the pump 41 and the suction valve 24B is opened by the electromagnetic valve unit 40. Then, as shown in FIG. 1, when the connecting portion 19 is removed and the protruding pipes 24C and 25C are pulled out partway from the coupling pipes 24D and 25D, the bypass pipe 33 is brought into a communication (open) state, and the air feed pipe 25A. The residual water in the tank is collected into the tank 21A via the bypass pipe 33 and the suction pipes 24C and 24B (note that the water supply pipe 25C on the pipe unit 18 side is closed by the electromagnetic valve section 40). Accordingly, when the connecting portion 19 is completely removed, water or the like does not sag.
[0021]
In the above example, the bypass pipe 33 is provided between the suction pipe 24 and the water supply pipe 25. However, the bypass pipe is also provided in the other pipe, for example, a jet pipe, etc. Thus, the residue in the tube can be sucked.
[0022]
【The invention's effect】
As described above, according to the present invention, in an endoscope apparatus in which a conduit unit is detachably attached to an endoscope body by a connecting portion, a bypass is provided between the suction conduit of the connecting portion and another conduit. Since the bypass pipes are in communication with each other when the pipes are pulled out to the middle, they remain in other pipes using the suction pipe when the pipe unit is removed. Water or the like can be sucked in and the surroundings can be prevented from being soiled.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view showing a pipe line separation type endoscope apparatus according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state when connecting portions of the apparatus of FIG. 1 are connected.
FIG. 3 is a diagram illustrating a configuration of a valve body of a shutter according to an exemplary embodiment.
FIG. 4 is a diagram illustrating an overall configuration of an endoscope apparatus according to an embodiment.
[Explanation of symbols]
10 ... Electronic endoscope,
10C: Operation unit (main body side),
18… pipeline unit,
19 ... connecting part,
20… Solenoid valve unit,
23A: Suction button (switch),
24A, 24B, 24C, 24D ... suction tube,
25A, 25B, 25C, 25D ... water pipe,
33… Bypass line,
40: solenoid valve,
42: Control circuit.

Claims (2)

An endoscope body in which various pipes including a suction pipe are disposed;
A conduit unit having a conduit connected to the main body side conduit;
A pipe-separated endoscope comprising the pipe unit detachably with respect to the main body, and a connecting portion for connecting the pipes in a fitting manner,
A bypass pipe that connects the suction pipe and the other pipe in the connecting portion and connects the suction pipe and the other pipe when the fitting between the suction pipes is released halfway. Set up a road,
A pipe-separated endoscope apparatus characterized in that when the pipe unit is removed, the inside of another pipe can be sucked from the suction pipe using the bypass pipe. The pipe-separated endoscope apparatus according to claim 1, wherein a shutter for closing the suction pipe is provided in the suction pipe of the main body side connecting portion.

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