JP3729972B2 - 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 endoscope main body having various pipes by a connecting portion, and relates to a configuration for sucking the connecting portion.
[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 duct unit is detachable from the endoscope main body, dirty liquid or the like leaks from the main body-side suction pipe into or out of the connecting portion when the connecting portion is removed. There is a problem. That is, the suction tube guides the treatment tool to the distal end side, and sucks liquid remaining in the observed body. If the liquid remaining in the suction tube leaks, the connection portion or other air supply / Dirty water pipes and dripping outside will contaminate the endoscope itself and related equipment. Therefore, it is not preferable in terms of hygiene, and extra work increases when cleaning and sterilizing the endoscope including the duct unit.
[0006]
Therefore, the applicant of the present invention proposes to suck the inside of the connecting portion. However, an endoscope has conventionally been provided with a suction tube for the body to be observed, and suction is performed in relation to the suction tube. It is required that the configuration relating to the operation is not complicated.
[0007]
The present invention has been made in view of the above problems, and its purpose is to suck dirt remaining in the pipeline when removing the pipeline unit to prevent the spread of dirt to portions other than the pipeline. In addition, it is an object of the present invention to provide a duct-separated endoscope apparatus capable of simplifying the configuration relating to the suction operation including the suction pipe for the observed body.
[0008]
[Means for Solving the Problems]
In order to achieve the above-described object, a separate-type endoscope apparatus according to the present invention can be connected to an endoscope main body in which at least a suction pipe for a body to be observed is disposed, and the main body-side pipe line. A pipe-separated endoscope comprising a pipe unit having a pipe line and a connecting part for making the pipe unit detachable from the main body. And connecting the suction pipe for connecting part for sucking the inside of the connecting part, the suction pipe for connecting part and the suction pipe for in-vivo body to one suction device through respective electromagnetic valves. And an electromagnetic valve unit that controls opening and closing of the electromagnetic valve based on an operation control signal.
[0009]
According to the above configuration, in the duct unit, the suction pipe (second pipe) for the connecting portion is provided separately from the suction duct (first suction pipe) for sucking the contents (dirty liquid or the like) in the observed body. A suction tube) is provided. In the solenoid valve unit, the first suction pipe and the second suction pipe are connected to one suction device via a solenoid valve (open / close valve), and each operation switch signal is supplied to the solenoid valve unit. Then, the corresponding solenoid valve is opened, and the suction operation of each pipe is executed.
[0010]
According to the first suction tube, dirty liquid or the like in the observed body is sucked, and according to the second suction tube, the connecting portion is removed halfway, and the first suction tube, air / water supply tube is removed. If suction is performed in a state in which the liquid is removed, dirty liquid or the like leaking into the connecting portion can be sucked. Therefore, when the connecting part is completely removed, the dirty liquid or the like does not drip to the outside. Moreover, the suction operation of the two suction tubes is efficiently performed by one suction device.
[0011]
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.
[0012]
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.
[0013]
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.
[0014]
1 and 2 show details of the periphery of the connecting portion 19, FIG. 3 (A) shows the connecting portion 19 on the operation portion 10C side, and FIG. 3 (B) shows a pipe line. A connecting portion 19 on the unit 18 side is shown. As shown in FIGS. 1 and 4, the operation unit 10C is provided with a first suction button 23A, an air / water supply button (two-stage switch) 23B, and a hard copy button 23C, which are electrical switches.
[0015]
In the operation unit 10C, a first suction pipe 24A is provided as a suction pipe for the observed body, and an air supply pipe 25A and a water supply pipe 26A are disposed as shown in FIG. On the other hand, in the conduit unit 18, as shown in FIG. 3B, the first suction tube 24B, the air supply tube 25B, and the air supply tube 25B to be connected to the conduits 24A, 25A, and 26A. A water pipe 26B is arranged, and these pipe lines 24B, 25B, and 26B are connected to the electromagnetic valve unit 20. (There are various types and arrangements of these pipelines).
[0016]
The first 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 tool, and the suction tubes 24A and 24B also serve as a treatment tool insertion channel. become.
[0017]
The pipe unit 18 is provided with a second suction pipe 30 as a connection part suction pipe, and the connection part 19 has a structure in which the first suction pipes 24A and 24B are removed first. That is, 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 10 </ b> C, and a female screw is fixed to the support portion 18 </ b> A of the conduit unit 18 on the inner periphery. A ring 32 is provided.
[0018]
Here, as shown in FIG. 1, the first suction pipes 24A and 24B are connected by fitting the protruding pipe 24T to the protruding pipe 24S. Even if the protruding pipe 24T is detached from the protruding pipe 24S. The fixing ring 32 and the receiving portion 31 are screwed together, and an airtight state by packing or the like is maintained. In this example, the mark M indicating the position (set position) where the first suction pipes 24A and 24B come off is attached to the outer periphery of the receiving portion 31, and the end of the fixing ring 32 is aligned with the mark M. Thus, it can be easily set at a position in the connecting portion 19 where suction can be performed.
[0019]
In addition, the second suction pipe 30 disposed in the pipe line unit 18 has a large circular opening 30A at the tip of the support portion 18A, thereby efficiently sucking the liquid or the like in the connecting portion 19. While performing well, the reinforcement effect of the connection fixation of the pipe line unit 18 is heightened. In addition, said pipe line unit 18 can be formed using an integrally molded tube (multi-lumen tube etc.), and can be used only once (disposable).
[0020]
FIG. 1 shows a detailed configuration of the electromagnetic valve unit 20. In the electromagnetic valve unit 20, an electromagnetic valve 34 is provided on the first suction pipe 24 </ b> C connected to the first suction pipe 24 </ b> B. An electromagnetic valve 35 is provided in the second suction pipe 30 </ b> C connected to the second suction pipe 30. The first and second suction pipes 24C, 30C are connected to a pump (suction unit) 36 through a suction tank 21A.
[0021]
Further, the solenoid valve unit 20 is supplied with a second suction switch 37 for performing a suction operation of the second suction pipe 30 and an operation control signal for the second suction switch 37 and the first suction button 23A. A circuit 38 is provided, and the control circuit 38 controls opening and closing of the electromagnetic valves 34 and 35. The second suction switch 37 may be disposed on the support portion 18A of the duct unit 18, or the suction button 23A may be a two-stage switch and assigned to the second-stage switch.
[0022]
The first example has the above-described configuration. When the endoscope is used, as shown in FIG. 1, 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, when the first suction button 23A of the operation unit 10C is pressed, the electromagnetic valve 34 is opened by the control circuit 38 in the electromagnetic valve unit 20, and the tip portion 10A passes through the first suction pipes 24A and 24B. Dirty liquid or the like in the body to be observed is sucked and collected into the suction tank 21A.
[0023]
On the other hand, when removing the conduit unit 18 for cleaning or the like, as shown in FIG. 1, the fixing ring 32 is removed halfway along the receiving portion 31 while referring to the mark M, and the second of the solenoid valve unit 20 is removed. The suction switch 37 is operated. Then, the electromagnetic valve 35 is opened, and suction in the connecting portion 19 is performed by the second suction tube 30 (at this time, a cap may be attached to the forceps port 28). According to this, the liquid or the like leaking from the first suction pipe 24A or the water supply pipe 25A into the connecting portion 19 is sucked by the second suction pipe 30 and can be similarly collected in the suction tank 21A.
[0024]
In addition, the first suction pipe 24 (A, B) and the second suction pipe 30 can be used at the same time. That is, the second suction tube 30 is used during the connection operation of the connecting portion 19 or during use of the endoscope. During the connecting operation, the operation becomes easy due to the adsorption effect of the connecting portion 19, and after the connection is completed, the connecting portion The fixing of 19 can be strengthened, and the situation where the duct unit 18 comes off during the operation or the like can be eliminated. In this case, both the suction pipes 24 and 30 can be used simultaneously by opening the electromagnetic valve 34 while keeping the electromagnetic valve 35 open.
[0025]
【The invention's effect】
As described above, according to the present invention, in the endoscope apparatus in which the conduit unit is detachable from the endoscope main body by the connecting portion, the suction pipe for the observed body is included in the conduit unit. Separately, the suction pipes for the connecting part are arranged, and these suction pipes are connected to one suction device via solenoid valves, and this solenoid valve is controlled to open and close. Etc. can be sucked at the time of removal of the pipeline unit to prevent the spread of dirt to parts other than the pipeline, and the suction operation of the two types of suction tubes can be efficiently performed using one suction device, It is possible to simplify the configuration related to the suction operation.
[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 an enlarged cross-sectional view showing a state when the connecting portion of the apparatus of FIG. 1 is partially removed.
3A and 3B show a configuration of a connecting portion of the endoscope apparatus of FIG. 1, in which FIG. 3A is a view of a connecting portion on an operation portion side, and FIG. 3B is a view of a connecting portion on a conduit unit side.
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,
20… Solenoid valve unit,
23A: First suction button (switch),
24A, 24B, 24C, 24S, 24T ... 1st suction pipe,
25A, 25B ... water pipe,
26A, 26B ... Air pipe,
30, 30A, 30C ... 2nd suction pipe,
34, 35 ... Solenoid valve,
37 ... second suction switch,
38: Control circuit.

Claims (1)

An endoscope main body provided with at least a suction conduit for the in-vivo body;
A conduit unit having a conduit that can be connected to the main body side conduit;
A pipe separation type endoscope provided with a connecting part for making this pipe unit detachable from the main body,
A connecting portion suction conduit disposed in the conduit unit for sucking the connecting portion;
An electromagnetic valve unit that connects the suction pipe for the connecting portion and the suction pipe for the observation body to one suction device via each electromagnetic valve, and performs opening / closing control of the electromagnetic valve based on an operation control signal; A pipe separation type endoscope apparatus provided with

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