JP2006325815A - Water feeding device for endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water feeding device for endoscopes which maintains a high level of hygiene, facilitates proper filling of a medical solution, and enables a medical worker to use up a liquid in a container completely. <P>SOLUTION: In the device to feed water to a water jet pipe in the endoscope and to water feeding pipe in which a treatment device insertion channel is penetrated, a liquid bag 54 which is used by engaging hanging hooks 56 with engaging holes 54b and is equipped with a liquid take-out part 54c made of a rubber at the lower part of a bag body 54a containing the liquid is used. An injection needle 52 is stuck in the liquid take-out part 54c of the liquid bag 54, and the liquid is supplied to the side of the endoscope from a coupling pipe 15d connected to the injection needle 52 by a female connector 50 of a luer lock connecting type through a water feeding pump part 30. Moreover, a take-out pipe 34P for a tank 34 is attached to the female connector 50 by a male connector 51 to selectively use the liquid bag 54 and the tank 34. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an endoscope water supply device, in particular, a dedicated water supply pipe disposed in an endoscope, various water supply pipes used through a treatment instrument insertion channel, or a water supply pipe provided in a treatment instrument. The present invention relates to a configuration of an endoscope water supply device for supplying a liquid into a body to be observed.

  2. Description of the Related Art Conventionally, in an endoscope apparatus, a dedicated water supply pipe (so-called water jet pipe) is provided inside an endoscope (scope), and a physiological saline for washing is applied to an object to be observed (such as an affected area) by a water supply pump unit. Supplying the chemical | medical solution etc. for a treatment is performed. This water pipe is disposed separately from the air / water pipe for cleaning the observation window of the objective optical system.

  On the other hand, in the endoscope apparatus, a treatment instrument insertion channel for introducing various treatment instruments into the observed body is provided, and a water supply tube having various diameters is directly or directly passed through the treatment instrument insertion channel. Injecting a liquid according to the situation, a difference in treatment, and the like is performed. According to this, since a water supply tube having a diameter different from that of the water jet pipe is used, there is an advantage that the water supply range (the width of the water supply port), the amount or the speed can be selected according to the situation.

In recent years, a treatment instrument having a water supply line is also used. For example, in a high-frequency knife for excising living tissue by high-frequency incision, washing water such as physiological saline is supplied from a water supply line provided during cautery incision. By feeding, the bleeding part and the like are washed.
JP 2002-177208 A JP 2001-321339 A

  By the way, liquids such as physiological saline and chemicals that are fed into the body to be observed are stored in a storage tank, and the liquid in the tank is fed to the body to be observed through the water feeding device and the water pipe in the endoscope. Therefore, the tank and the liquid inside the tank need to be hygienic. In endoscopy and treatment, liquids in the same tank are often used for a plurality of subjects and patients. In such a case, from the viewpoint of hygiene, bacterial infection, etc. It is necessary to have a system configuration in which the liquid from the side water pipe does not flow back into the tank.

  Furthermore, in endoscopy and treatment, a chemical solution such as an antifoaming agent is injected into a liquid such as physiological saline depending on the situation, but it is also easy to perform such appropriate chemical injection. Necessary. Further, as shown in FIG. 4, the conventional liquid tank 1 has a structure in which the take-out pipe 2 is arranged from the upper cap 1a to the lower side and the liquid is sucked out from the take-out pipe 2, The liquid 100 stored in the lower portion remained, and the liquid in the tank 1 could not be completely used up.

  The present invention has been made in view of the above-mentioned problems, and its purpose is to ensure high hygiene by allowing use as a dedicated container for the same patient only once, and to appropriately inject chemicals. It is another object of the present invention to provide a water supply device for an endoscope that can easily use the liquid in the container and can completely use it.

In order to achieve the above object, an invention according to claim 1 is an endoscope water supply device including a water supply pump unit that supplies liquid to a water supply conduit disposed in an endoscope. A liquid container comprising: an engaging member that is engaged to be suspended; a main body that contains liquid; and a rubber liquid extraction portion that is disposed at a lower portion of the main body and penetrates an injection needle (hollow needle); A connection pipe line connected to the water pump unit and attached with the injection needle, the liquid container is hung on the suspension tool, and the injection needle is inserted into the rubber liquid take-out unit The liquid from the liquid container is sent to the water pump unit.
According to a second aspect of the present invention, a connector (for example, a luer lock connection type connector) for selectively connecting the injection needle and an extraction line of a tank with an extraction line is provided on the connecting line to which the injection needle is attached. It is characterized by that.

According to the configuration of the present invention, the liquid container can be a liquid bag (pack) using a soft bag made of a synthetic resin, similarly to a conventional infusion (blood transfusion) bag. The liquid in the liquid container is supplied to the water supply pump part via the connecting pipe line, and the liquid is supplied from the water supply pump part to the water supply pump part. It is sent into the body to be observed through the endoscope water supply conduit. At this time, the liquid medicine can be added to the liquid by inserting the needle of the syringe containing the liquid medicine into the rubber liquid take-out portion.
According to the configuration of the second aspect, for example, the injection needle and the take-out pipe of the conventional tank can be exchanged by a luer lock connection type connector. And can be selected.

  According to the endoscope apparatus of the present invention, a liquid bag or the like can be used (single use) as a dedicated container for the same patient only once, and a high hygiene state can be ensured. In addition, it is easy to appropriately inject a chemical solution to be added to the liquid fed into the body to be observed, and it is possible to completely use the liquid without leaving the liquid in the container.

  1 and 2 show the configuration of an endoscope water supply apparatus according to an embodiment. First, the overall configuration including the endoscope will be described with reference to FIG. As shown in FIG. 2, an endoscope (electronic endoscope) 10 has an insertion portion 10A, an operation portion 10B, and a cable portion 10C, and is connected to the light source device 13 in the figure by a connector 12 of the cable 10C. The In the case of an electronic endoscope, the cable 10C is also connected to a processor device. The endoscope 10 is provided with various pipes therein, and a water jet pipe (dedicated water supply pipe) 15a is disposed from the distal end of the insertion part 10A to the rear end part of the operation part 10B. In order to clean the observation window (lens surface) of the objective optical system provided at the distal end of the insertion portion 10A through the nozzle, an air / water feeding pipe 16a is provided on the distal end side, and this air / water feeding pipe 16a is provided. An air supply pipe 16b and a water supply pipe 16c are disposed so as to communicate with each other.

  Further, the endoscope 10 is provided with a treatment instrument insertion channel 17a that also serves as a suction pipe and a suction tube 17b that communicates with the treatment instrument insertion channel 17a. The treatment instrument insertion channel 17a includes a position of the operation unit 10B. A forceps port (treatment tool insertion port) 20 is provided in the upper part. The second water supply pipe 18 is inserted from the forceps port 20 into the treatment instrument insertion channel 17a. The second water supply pipe 18 has various diameters and is made of a hard synthetic resin material. In addition, there are water pipes and the like provided in a treatment instrument such as a high-frequency knife.

  The air supply pipe 16b and the water supply pipe 16c for cleaning the observation window described above are provided with an air supply / water supply operation valve (switch) 22 and a tank (first water supply tank) 23 connected to the air supply pipe 16b. Is connected to a pump 24 in the light source device 13 (or a separate body) via a connecting tube 16d, and air is supplied to the observation window by, for example, a two-stage pressing operation of the air / water supply operation valve 22. Water can be sent. The suction tube 17b is provided with a suction operation valve (switch) 27 in the middle thereof, and is connected to a suction device through a connection tube of the connector 12, and the contents in the observed body are operated by the operation of the suction operation valve 27. Objects and the like can be sucked (through 17a and 17b) and discharged.

  Further, the endoscope water supply device is provided with a water supply pump unit 30 for supplying a liquid to the body to be observed. The water supply pump unit 30 includes a pump unit main body 31 having a motor and a control circuit, A pump 32 disposed on the front side of the main body 31, a foot switch 33 for performing water supply operation, and a tank (second water supply tank) 34 are provided, and this tank 34 is connected to the pump 32 (input port) via a connecting pipe 15d. Is done.

  Further, in order to connect the pump 32 (output port) and the water jet pipe 15a disposed in the endoscope 10, a first water supply pipe 15b and a connecting pipe 15c are provided. A switching valve (one input, two outputs) 36 consisting of a three-way stopcock is attached between the connecting pipes 15c, and one input of the switching valve 36 is connected to the connecting pipe 15c on the pump 32 side, two outputs. The first water pipe 15b and the second water pipe 18 are connected to each other. In other words, in the embodiment, by manual operation of the switching valve 36, water supply using the water jet tube 15a in the endoscope and water supply of various diameters led out from the forceps port 20 to the body to be observed through the treatment instrument insertion channel 16a. It is possible to switch between water supply using the second water supply pipe 18 which is a water supply pipe provided in a treatment instrument such as a tube or a high-frequency knife.

  FIG. 1 shows a detailed configuration of the water pump unit 30 and the liquid bag and tank 34. As shown in the drawing, a main body 31 of the water pump unit (device) 30 includes a power switch 44, a foot switch. 33, a flow rate adjusting knob (variable resistor) 45, and the like are provided. In the pump 32, the tank side connecting pipe 15d is connected to the input port pipe 46, and the output port pipe 47 is connected to the endoscope side. The connecting pipe 15c is connected. A luer lock connection type (male and female screw fixing type) female connector 50 is attached to the tip of the connecting tube 15d, and the male screw portion of the injection needle 52 is screwed to the female connector 50.

  In the embodiment, a liquid bag 54 is provided as a liquid container. The liquid bag 54 has the same configuration as the infusion (blood transfusion) bag, and is disposed on the upper part of the main body bag 54a, which is a soft synthetic resin main body bag 54a for storing liquids such as physiological saline and chemicals. , An engagement hole 54b for hooking on a hanging hook 56 disposed in a dedicated stand, a system rack of an endoscope, and the like, and a rubber liquid takeout portion 54c disposed in the lower portion of the main body bag 54a.

  On the other hand, in the tank 34 of the embodiment, the liquid take-out pipe 34P is arranged not from the cap but from the upper part of the side face to the bottom part along the side face of the tank, and the luer lock for connecting the female connector 50 to the tip of the take-out pipe 34P. A connectable male connector 51 is provided.

  According to the configuration of such an embodiment, the liquid bag 54 is suspended by hooking the engagement hole 54b on the suspension hook 56 of FIG. 1, and the rubber liquid take-out portion 54c of the liquid bag 54 is connected to the connecting tube 15d. By inserting the injection needle 52 connected to the female connector 50, liquid such as physiological saline in the liquid bag 54 can be supplied to the endoscope 10 side by the pump 32. At this time, the syringe (syringe) containing the chemical solution is connected to the other injection needle 57 in the figure, and the injection needle 57 is inserted into the rubber liquid take-out portion 54c so that the chemical solution such as an antifoaming agent is appropriately converted into a liquid. It can also be supplied from the water pump unit 30 in addition.

In the embodiment, the water jet pipe 15a of FIG. 2 and the second water supply pipe 18 passing through the treatment instrument insertion channel 16a from the forceps port 20 can be switched by the switching valve 36, and the water supply pipe selected according to the situation The target liquid is fed into the body to be observed through the.
According to the liquid bag 54 described above, it can be used as a one-time-use liquid container, and since there is no air inside, it can be taken out from the injection needle 52 without leaving any liquid.

  Further, in the embodiment, as shown in FIG. 1, after the injection needle 52 is removed from the female connector 50 of the luer lock connection type, the male connector 51 of the take-out pipe 34P of the tank 34 is connected to the female connector 50, The liquid in the tank 34 can also be used. That is, the tank 34 having the liquid bag 54 and the take-out pipe 34P can be selected according to the situation.

  FIG. 3 shows another example of the liquid container of the embodiment. This example uses a hard container instead of a soft bag. That is, the liquid container 58 has a main body container 58a made of a hard synthetic resin or a glass container, an engaging portion 58b on the upper part, and a net-like support body 58b wound around the outer periphery so as to hold the main body container 58a. , And a rubber liquid outlet 58d.

  Even with such a liquid container 58, the engaging portion 58b is hooked on the suspension hook 56 to suspend the liquid container 58, and the injection needle 52 connected to the connecting tube 15d is connected to the rubber liquid take-out portion 58d of the liquid container 58. And the other injection needle 52 for securing the air supply passage is inserted, whereby a liquid such as physiological saline in the liquid container 58 can be supplied to the endoscope 10 side by the pump 32. It becomes.

It is a figure which shows the structure of the water supply apparatus for endoscopes which concerns on the Example of this invention. It is a figure which shows the whole structure when the water supply apparatus for endoscopes concerning an Example is applied to an endoscope. It is a figure which shows the other structure of the liquid container of an Example. It is a figure which shows the structure of the conventional liquid tank.

Explanation of symbols

10 ... endoscope, 15a ... water jet tube,
15b ... 1st water pipe, 15c, 15d ... Connection pipe,
17a ... treatment instrument insertion channel, 18 ... second water pipe,
30 ... Water pump part 31 ... Pump part body,
34 ... Tank, 36 ... Switching valve,
50 ... Female connector, 51 ... Male connector,
52, 57 ... needle, 54 ... liquid bag,
54a ... main body bag, 54b ... engagement hole,
54c, 58d ... rubber liquid takeout part, 58 ... liquid container,
58a ... container body, 58b ... engagement part.

Claims (2)

In an endoscope water supply apparatus provided with a water supply pump unit for supplying liquid to a water supply pipe line disposed in an endoscope,
A liquid container comprising: an engaging member that is engaged to be suspended by a suspending tool; a main body that contains liquid; and a rubber liquid extraction portion that is disposed at a lower portion of the main body and penetrates an injection needle;
A connecting pipe line connected to the water pump unit and attached with the injection needle; and
The liquid container is suspended from the suspension tool, and the liquid from the liquid container is sent to the water supply pump unit in a state where the injection needle is inserted into the rubber liquid take-out unit. Endoscope water supply device.   2. The endoscope for an endoscope according to claim 1, wherein a connector for selectively connecting the injection needle and an extraction conduit of a tank with an extraction conduit is provided on the connecting conduit to which the injection needle is attached. Water supply device.