JP6625394B2 - Insertion equipment, insertion system - Google Patents

Description

  The present invention relates to an insertion device and an insertion system having a plurality of conduits in an insertion portion inserted into a subject.

  In an insertion device, for example, an endoscope, when an insertion section is inserted into a subject to observe a test site in the subject, the endoscope is provided on the endoscope in order to ensure a good observation field of view. Along with the pipe line connected to the suction device, a liquid or solid in the subject, for example, a liquid such as mucus in the body cavity and washing water used for cleaning the optical system, a residue in the body cavity, and a treatment tool are used. It is well known that a solid such as a tissue to be excised by suction is removed by suction.

  In addition, in order to secure a good visual field of an endoscope in a procedure of applying energy to a treatment target tissue in a subject using a cautery device and performing ablation, for example, if only a liquid or a solid is used, In addition, a configuration is also known in which a gas containing solid particle components diffused into a subject by cauterization (hereinafter, simply referred to as a gas), for example, smoke containing mist-like body cavity tissue is sucked.

  In addition, the suction of the fluid using the suction pipe is performed when the operator operates a suction button provided on the operation unit of the endoscope or a foot switch connected to the endoscope. In addition to the configuration in which the pump provided in the pipeline is driven and the configuration in which the pump is driven after the power of the endoscope is turned on, the configuration in which the pump is constantly performed is well known.

  In the case of an endoscope used in the medical field, when gas in a body cavity is sucked through a suction pipe, the sucked amount of gas is sent into the body cavity to prevent contraction in the body cavity. The configuration is well known.

  In addition, the gas is supplied into the body cavity after the gas sucked from the body cavity is removed by a filter or the like to remove the solid particle components, and then the gas is re-supplied, that is, the gas is recirculated into the body cavity. May be.

  Here, Patent Literature 1 discloses a configuration in which a plurality of conduits are provided in an insertion portion of an endoscope in order to improve a suction efficiency of a fluid sucked from inside a subject.

JP 2014-18563 A

  However, in the configuration in which a plurality of conduits are provided in the insertion portion as disclosed in Patent Literature 1, a part of each of the openings of the plurality of conduits on the distal end surface of the insertion portion is immersed or opposed to the liquid. In a state in which the pipe is immersed in the liquid or opposed to the liquid, even if the operator wants to secure a good observation visual field by suctioning only the gas from the subject, The liquid or the solid is sucked against the intention of the operator.

  If the liquid or solid is sucked unintentionally by the operator, the drain tank connected to the pipeline will be filled unintentionally, and the pump is set to suck only gas However, there have been problems such as a malfunction of the pump.

  The present invention has been made in view of the above problems, and provides an insertion device and an insertion system that can efficiently suction and remove only gas in a subject in a configuration having a plurality of conduits in an insertion portion. The purpose is to do.

In order to achieve the above object, an insertion device according to one aspect of the present invention includes an insertion unit to be inserted into a subject, a plurality of conduits provided in the insertion unit, and each having an opening at a distal end side of the insertion unit. A detection unit that detects an area where liquid is stored in the subject; and a pipe in which the opening is located in an area where the liquid is stored among a plurality of the pipes based on a detection result of the detection unit. A blocking unit for blocking or stopping suction through the sensor, wherein the detecting unit detects a gravitational direction of the insertion unit, and the blocking unit detects the gravitational direction based on a gravitational direction detection result of the detecting unit. Block or stop suction through the conduit where the opening is located below the direction.
Further, an insertion device according to another aspect of the present invention includes an insertion portion to be inserted into a subject, a plurality of conduits provided in the insertion portion, each having an opening at a distal end side of the insertion portion, A detecting unit that detects an area where liquid is stored in the inside, and suction through the pipe where the opening is located in an area where the liquid is stored among a plurality of the pipes based on a detection result of the detecting unit. And a blocking unit for blocking or stopping, wherein the detecting unit has a subject image acquiring unit for acquiring a subject image in the subject, and color information of the subject image acquired by the subject image acquiring unit. Or, based on the luminance information, detects the area in which the liquid has accumulated in the subject, the blocking unit, based on the detection result of the color information or luminance information of the detection unit, the liquid has accumulated in the subject , The opening is located in the area Block or stop the suction through the serial line.

Further, an insertion system according to one aspect of the present invention includes an insertion device including an insertion portion to be inserted into a subject, and a plurality of conduits provided in the insertion portion and each having an opening at a distal end side of the insertion portion. An ablation device that applies energy to tissue in the subject to cauterize the tissue, a detection unit that detects a region where the liquid is stored in the subject, and a plurality of the conduits based on a detection result of the detection unit. Among them, a blocking unit for blocking or stopping suction through the conduit in which the opening is located in a region where the liquid is stored, and connected to the plurality of conduits, respectively, and cauterization performed by the cauterization device. The gas containing the solid particle component diffused into the subject by being performed is sucked from the pipes other than the pipes whose suction is cut off or stopped by the blocking unit among the plurality of pipes. Pong Wherein the detection unit detects the direction of gravity of the insertion unit, and the blocking unit is configured such that the opening is located below the direction of gravity based on a result of detection of the direction of gravity of the detection unit. Shut off or stop suction through the line.
Furthermore, an insertion system according to another aspect of the present invention is an insertion device including an insertion portion to be inserted into a subject, and a plurality of conduits provided in the insertion portion and each having an opening at a distal end side of the insertion portion. An ablation device that applies energy to tissue in the subject to cauterize the tissue, a detection unit that detects a region where the liquid is stored in the subject, and a plurality of the conduits based on a detection result of the detection unit. Among them, a blocking unit for blocking or stopping suction through the conduit in which the opening is located in a region where the liquid is stored, and connected to the plurality of conduits, respectively, and cauterization performed by the cauterization device. The gas containing the solid particle component diffused into the subject by being performed is sucked from the pipes other than the pipes whose suction is cut off or stopped by the blocking unit among the plurality of pipes. Po And the detection unit has a subject image acquisition unit that acquires a subject image in the subject, and based on color information or luminance information of the subject image acquired by the subject image acquisition unit, Detecting an area where the liquid is stored in the subject, the blocking unit is configured to position the opening in the area where the liquid is stored in the subject based on the detection result of the color information or the luminance information of the detection unit. Shut off or stop the suction through the pipeline.

  According to the present invention, it is possible to provide an insertion device and an insertion system that can efficiently aspirate and remove only gas in a subject in a configuration having a plurality of conduits in an insertion portion.

The figure which shows schematically the insertion system of 1st Embodiment. The figure which shows schematically the structure which sucks the gas containing a solid particle component in the insertion system of FIG. 1 schematically illustrates a state in which a lesion site in a subject is cauterized using a cautery device in the insertion system in FIG. 1 and gas containing solid particle components generated by the cauterization is suctioned using a plurality of conduits. Figure The figure which shows roughly the structure which sucks the gas containing a solid particle component in the insertion system of 2nd Embodiment. The figure which shows roughly the structure which sucks the gas containing a solid particle component in the insertion system of 3rd Embodiment. The figure which shows roughly the structure which sucks the gas containing a solid particle component in the insertion system of 4th Embodiment. The figure which shows the example in which the lesion part of the test subject and the area | region where liquid was stored were displayed on the monitor of the insertion system of FIG. FIG. 2 is a diagram schematically showing a modification in which the control unit of FIG. 2 is provided in a pump. FIG. 2 is a diagram schematically showing a modification in which a pump for sucking a gas containing a solid particle component in the insertion system of FIGS. FIG. 2 is a diagram schematically showing a modification in which a pump for sucking a gas containing a solid particle component in the insertion system of FIGS. 2 and 4 is provided for each UD line and each RL line. FIG. 2 is a diagram schematically showing a modification in which the suction amount of the pump is increased in the configuration in which the gas including the solid particle component is suctioned in the insertion system in FIGS. FIG. 3 is a partial cross-sectional view schematically showing a state in which the insertion portion is inserted into the inside of the overtube. FIG. 12 is a front view of the insertion portion and the overtube of FIG. 12 viewed from the XII direction in FIG. 12. FIG. 13 is a front view showing another example of the plurality of conduits in FIG. 13. The figure which shows the modification which the detection part of FIG. 6 provided in the inside of the control part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, an insertion device will be described by taking an endoscope as an example. Further, the endoscope will be described by taking a medical endoscope as an example.

(1st Embodiment)
FIG. 1 is a diagram schematically showing the insertion system of the present embodiment, FIG. 2 is a diagram schematically showing a configuration for sucking a gas containing a solid particle component in the insertion system of FIG. 1, and FIG. FIG. 1 is a diagram schematically illustrating a state in which a lesion site in a subject is cauterized by using a cautery device in the insertion system 1 and gas containing solid particle components generated by the cauterization is suctioned using a plurality of conduits. It is.

  As shown in FIG. 1, the main part of the insertion system 1 includes an endoscope 2 as an insertion device, a peripheral device 100, and a cautery device 90.

  The cautery device 90 is a device for cauterizing by applying energy to the tissue in the subject, and is constituted by, for example, a high-frequency knife.

  The cautery device 90 is configured to be supplied with power from the high frequency power supply 53. Further, the high frequency power supply 53 is connected to a foot switch 50 which is operated by a stepping operation by an operator.

  The peripheral device 100 includes a keyboard 31, a light source device 33, a video processor 34, a monitor 36, and a pump 40 mounted on a gantry 30.

  The endoscope 2 includes an insertion portion 4 to be inserted into the subject, an operation portion 3 connected to the proximal end of the insertion portion 4, a universal cord 5 extended from the operation portion 3, A main part is constituted by including a connector 32 provided at the extending end of the universal cord 5 and detachable from the light source device 33. The connector 32 and the video processor 34 are electrically connected by a connection cable 35.

  The insertion section 4 includes, for example, up, down, left, and right, by a distal end 6 located on the distal side of the insert 4 and a bending operation knob 9 provided on the operation section 3 while being connected to the base end of the distal end 6. It comprises a bending portion 7 operated to bend in four directions, and a flexible tube portion 8 connected to the base end of the bending portion 7.

  On the distal end surface 6s of the distal end portion 6, openings 10us, 10rs, 10ls, 10ds of a plurality of conduits 10u, 10r, 10l, 10d (see FIG. 2) provided in the endoscope 2, an objective lens 21, An air / water nozzle 23, an illumination window 25, and the like are provided.

  In FIG. 1, the opening 10us is opened in the UP direction, the opening 10ds is opened in the DOWN direction, the opening 10rs is opened in the RIGHT direction, and the opening 10ls is opened in the LEFT direction. The positions of the openings 10us, 10rs, 10ls, and 10ds are not limited to these.

  The air / water supply nozzle 23 supplies a fluid to the objective lens 21 to remove dirt attached to the objective lens 21 or supply a fluid to the subject.

  The illumination window 25 supplies illumination light into the subject. Instead of the illumination window 25, a light emitting element such as an LED may be provided on the distal end face 6s.

  As shown in FIG. 2, the openings 10us, 10rs, 10ls, and 10ds correspond to the openings at the distal ends of the pipes 10u, 10r, 10l, and 10d provided in the insertion section 4, the operation section 3, the universal cord 5, and the connector 32. Make up.

  Note that, in the present embodiment, the number of the plurality of conduits provided in the endoscope 2 is four as the conduits 10u, 10r, 10l, and 10d. The present invention is not limited to this, and may be any number as long as it is two or more.

  Further, a suction tube 41 extended from the pump 40 is connected to the connector 32, and each of the pipelines 10u, 10r, 10l, and 10d is inserted into the suction tube 41, and each of the pipelines 10u, As shown in FIG. 2, one pump 40 is connected to 10r, 10l, and 10d.

  In the present embodiment, the pump 40 is configured to be constantly driven after the insertion system 1 is driven.

  The pipelines 10u, 10r, 10l, and 10d are for aspirating the fluid in the subject by driving the pump 40.

  Specifically, in the present embodiment, as shown in FIG. 3, the pump 40 uses a cautery device 90 to cause a tissue, a tissue inside the subject, to secure a favorable observation field of view of the objective lens 21 inside the subject. For example, the gas A containing the mist-like solid particle component diffused into the subject by applying energy to the lesion site S and performing cauterization is supplied to the pipeline 10u via the openings 10us, 10rs, 10ls, and 10ds. Using 10r, 10l, and 10d, suction is performed from pipes other than the pipes whose suction is cut off or stopped by the control unit 60 (see FIG. 2) described later among the pipes 10u, 10r, 10l, and 10d.

  As the gas A containing the mist-like solid particle component, when the cautery device 90 is ablated by applying energy to the living tissue in the subject, the mucous membrane constituting the living tissue diffused in the subject and A gas containing a component such as fat is exemplified. Hereinafter, the gas A containing the mist-like solid particle component is simply referred to as gas A.

  Further, even if the cautery device 90 is inserted alone into the subject, the cautery device 90 is inserted into any one of the conduits 10u, 10r, 10l, and 10d and inserted into the subject. It does not matter.

  Further, in the present invention, the suction of the gas A using the conduits 10u, 10r, 10l, and 10d does not interlock with the energization of the cautery device 90. This is because the gas A in the subject may be sucked through the pipes 10u, 10r, 10l, and 10d other than the cauterization using the cautery device 90.

  Further, in FIG. 2, the pipes 10 u, 10 r, 10 l, and 10 d are illustrated as an example in which a single pump 40 sucks the gas A, and the pumps 40 are connected to one. .

  Further, in the insertion system 1 according to the present embodiment, as described above, at the time of suction using the pipes 10u, 10r, 10l, and 10d, in order to prevent contraction inside the subject, the amount of the sucked gas is reduced. A configuration is provided in which air is supplied to the subject from the air / water supply nozzle 23.

  Here, in the pipes 10u, 10r, 10l, and 10d, a region R (hereinafter, simply referred to as a region R) in which the liquid is collected in the subject is detected at the opening 10us, 10rs, 10ls, and 10ds side with respect to the pump 40. A sensor unit 15 is provided as a detection unit that performs the detection. Note that the sensor unit 15 may be provided outside the endoscope 2.

  The sensor unit 15 includes a sensor 11 provided in the pipe 10u, a sensor 12 provided in the pipe 10r, a sensor 13 provided in the pipe 10l, and a sensor 14 provided in the pipe 10d. Have been.

  Further, in the present embodiment, the sensors 11 to 14 are configured by liquid detection sensors that detect liquid inside each of the pipelines 10u, 10r, 10l, and 10d.

  In addition, as a liquid detection sensor, a light absorption sensor that detects whether light is absorbed by water molecules, a light refraction sensor that detects a difference in refractive index due to the presence or absence of liquid, a dielectric constant specific to liquid, And an ultrasonic sensor for detecting the reflection of ultrasonic waves depending on the presence or absence of a liquid.

  That is, the liquid detection sensor may be either a non-contact sensor or a contact sensor.

  Further, the sensors 11 to 14 may be configured by humidity sensors that detect the humidity inside each of the pipelines 10u, 10r, 10l, and 10d.

  In addition, as a humidity sensor, a hair type sensor in which hair expands and contracts due to a change in water content, or a polymer resistance type sensor in which ions move due to the water content of a polymer material and the electric resistance changes according to the amount of ion movement. Examples include a sensor and a capacitance type sensor in which the dielectric constant changes according to the water content of the electrode and the capacitance changes.

  That is, the humidity sensor may be either a non-contact sensor or a contact sensor.

  Further, in the pipes 10u, 10r, 10l, and 10d, between the pump 40 and the sensor unit 15, a valve 70u capable of opening and closing the communication of the pipe 10u, and a valve capable of opening and closing the communication of the pipe 10r. 70r, a valve unit 70 having an openable / closable valve 70l for shutting off communication with the pipeline 10l and a valve unit 70 having an openable / closable valve 70d for shutting off communication with the pipeline 10d are provided. Note that the valves 70u, 70r, 70l, 70d are normally open. The valves 70u, 70r, 70l, 70d may be provided inside the endoscope 2 or may be provided outside the endoscope 2.

  Here, for example, in the video processor 34, based on the detection result of the sensor unit 15, any one of the openings 10us, 10rs, 10ls, and 10ds is located in the region R among the pipelines 10u, 10r, 10l, and 10d. There is provided a control unit 60 which is a blocking unit for blocking suction through the.

  The control unit 60 includes a processing circuit 61 to which the sensors 11 to 14 are electrically connected, and switches 62u, 62r, 62l, and 62d to which valves 70u, 70r, 70l, and 70d are electrically connected together with the processing circuit 61, respectively. Is provided. Note that the switches 62u, 62r, 62l, and 62d are normally on.

  The processing circuit 61 cuts off communication between the pipes 10u, 10r, 10l, and 10d in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R.

  More specifically, when the sensors 11 to 14 are liquid detection sensors, the processing circuit 61 receives the signals sent from the sensors 11 to 14 and then outputs the liquid detection results of the sensors 11 to 14. Of the pipes 10u, 10r, 10l, and 10d, the suction through the pipe in which the liquid is detected is turned off by turning off any of the corresponding switches 62u, 62r, 62l, and 62d, and the valves 70u, 70r , 70l, 70d is closed by sending a signal to close any of the valves 70u, 70r, 70l, 70d.

  For example, when the sensor 14 detects a liquid, the processing circuit 61 closes the valve 70d by turning off the switch 62d based on the detection result of the sensor 14, thereby performing suction through the pipe 10d. Cut off.

  Similarly, when the sensors 11 to 13 detect the liquid, the processing circuit 61 turns off the switches 62u, 62r, and 62l to close the valves 70u, 70r, and 70l, respectively. Block the suction through lines 10u, 10r, 10l.

  Further, when the sensors 11 to 14 are configured by humidity sensors, the processing circuit 61 sets a value higher than a predetermined threshold value among the pipelines 10 u, 10 r, 10 l, and 10 d based on the humidity detection results of the sensors 11 to 14. Suction through the conduit in which high humidity was detected is shut off by turning off any of the corresponding switches 62u, 62r, 62l, 62d and closing any of the valves 70u, 70r, 70l, 70d. I do.

  For example, when the sensor 14 detects a humidity higher than a predetermined threshold, the processing circuit 61 turns off the switch 62d and closes the valve 70d based on the detection result of the sensor 14 to close the valve 70d. The suction via the passage 10d is shut off.

  Similarly, even when the sensors 11 to 13 detect humidity higher than a predetermined threshold, the processing circuit 61 turns off the switches 62u, 62r, and 62l to turn off the valves 70u, 70r, and 70l, respectively. Closing shuts off suction through lines 10u, 10r, 10l.

  From the above, for example, when the sensor 14 detects a liquid or humidity higher than a predetermined threshold, the gas A is sucked only from the pipelines 10u, 10r, and 10l. That is, since the liquid is not sucked from the pipe 10d, the pipe 10d in which the opening 10ds is located in the region R does not suck the liquid.

  In the above, the case where the suction of one conduit is interrupted has been described as an example, but the same applies to the case where the suction of two or more conduits is interrupted.

  The other configuration of the insertion system 1 is the same as that of the conventional insertion system, and the description thereof is omitted.

  As described above, in the present embodiment, it has been described that the pipes 10u, 10r, 10l, and 10d are provided with the sensors 11 to 14 each including the liquid detection sensor or the humidity sensor for detecting the region R.

  Further, based on the detection results of the sensors 11 to 14, the sensors 11 to 14 pass through the pipes 10u, 10r, 10l, and 10d in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R. The processing circuit 61 cuts off suction by closing any of the valves 70u, 70r, 70l, 70d provided in the pipeline by turning off any of the switches 62u, 62r, 62l, 62d. Connected.

  According to this, since suction is not performed through the conduit in which the opening is located in the region R, when the gas A in the subject is suctioned using the conduits 10u, 10r, 10l, and 10d, Therefore, only the gas A can be efficiently sucked since the gas is not sucked against the intention of the operator.

  Therefore, it is possible to prevent the drain tank (not shown) connected to the pipes 10u, 10r, 10l, and 10d from being unintentionally filled, and to prevent the pump 40 from breaking down.

  As described above, in the configuration having the plurality of conduits 10u, 10r, 10l, and 10d in the insertion section 4, the endoscope 2 and the insertion system 1 that can efficiently aspirate and remove only the gas A in the subject are provided. can do.

(2nd Embodiment)
FIG. 4 is a diagram schematically showing a configuration for sucking a gas containing a solid particle component in the insertion system of the present embodiment.

  The configuration of the endoscope and the insertion system according to the second embodiment is different from that of the endoscope 2 and the insertion system 1 according to the first embodiment shown in FIGS. The difference lies in that it is constituted by a gravity sensor that detects the direction of gravity of the part.

  Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 4, the sensor unit 115, which is a detection unit that detects the region R, is provided with a sensor 111 provided in the pipeline 10u, a sensor 112 provided in the pipeline 10r, and provided in the pipeline 10l. It is composed of a sensor 113 and a sensor 114 provided in the conduit 10d, and is electrically connected to the processing circuit 61.

  Further, in the present embodiment, the sensors 111 to 114 are configured by gravity sensors that detect the direction of gravity g of the insertion section 4. Note that examples of the gravity sensor include a gyro sensor and an acceleration sensor.

  The processing circuit 61 cuts off communication between the pipes 10u, 10r, 10l, and 10d in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R.

  Specifically, the processing circuit 61 receives the signals sent from the sensors 111 to 114, and then, based on the gravitational direction detection results of the sensors 111 to 114, among the pipes 10u, 10r, 10l, and 10d, Suction through a pipe having an opening below the direction of gravity g is turned off by turning off any of the corresponding switches 62u, 62r, 62l, 62d, and closing any of the valves 70u, 70r, 70l, 70d. Is sent to any of the valves 70u, 70r, 70l, 70d to shut off.

  For example, when the sensor 114 detects that the opening 10ds is located below the gravity direction g, the processing circuit 61 turns off the switch 62d based on the detection result of the sensor 114, and thereby the valve 70d Is closed, so that suction through the conduit 10d is shut off.

  Similarly, when the sensors 111 to 113 detect that the openings 10us, 10rs, and 10ls are positioned below the gravitational direction g, the processing circuit 61 also turns off the switches 62u, 62r, and 62l, respectively. Then, by closing the valves 70u, 70r, 70l, the suction through the pipes 10u, 10r, 10l is shut off.

  From the above, for example, when the sensor 114 detects that the opening 10ds is positioned below the direction of gravity g, the gas A is sucked only from the pipelines 10u, 10r, and 10l. That is, since the liquid is not sucked from the pipe 10d, the pipe 10d in which the opening 10ds is located in the region R does not suck the liquid.

  In the above, the case where the suction of one conduit is interrupted has been described as an example, but the same applies to the case where the suction of two or more conduits is interrupted.

  Other configurations of the insertion system 1 are the same as those of the above-described first embodiment.

  As described above, in the present embodiment, it has been described that the sensors 111 to 114 including the gravity sensors for detecting the region R are provided in the pipelines 10u, 10r, 10l, and 10d, respectively.

  Further, based on the gravity detection results of the sensors 111 to 114, the sensors 111 to 114 are connected to the pipes 10u, 10r, 10l, and 10d via the pipes in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R. The processing circuit 61 shuts off the suction by turning any of the valves 70u, 70r, 70l, 70d provided in the pipe line to a closed state by turning off any of the switches 62u, 62r, 62l, 62d. It is indicated that it is electrically connected.

  According to this, since suction is not performed through the conduit in which the opening is located in the region R, when the gas A in the subject is suctioned using the conduits 10u, 10r, 10l, and 10d, Even so, the gas A is not sucked against the intention of the operator, so that only the gas A can be efficiently sucked.

  Therefore, the same effects as those of the above-described first and second embodiments can be obtained.

(Third embodiment)
FIG. 5 is a diagram schematically showing a configuration for sucking a gas containing a solid particle component in the insertion system of the present embodiment.

  The configuration of the endoscope and the insertion system of the third embodiment is the same as the endoscope 2 and the insertion system 1 of the first embodiment shown in FIGS. 1 to 3, and the second embodiment shown in FIG. 4. The difference is that the sensor unit is configured by a pressure sensor that detects the pressure in the pipeline compared to the configuration of the endoscope and the insertion system.

  Therefore, the same components as those of the first and second embodiments are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in FIG. 5, the sensor unit 215, which is a detection unit for detecting the region R, is provided with a sensor 211 provided on the pipeline 10u, a sensor 212 provided on the pipeline 10r, and provided on the pipeline 10l. The sensor 213 includes a sensor 213 and a sensor 214 provided in the pipeline 10d, and is electrically connected to the processing circuit 61.

  Further, in the present embodiment, the sensors 211 to 214 are constituted by pressure sensors that detect a change in the pressure of the fluid inside the pipelines 10u, 10r, 10l, and 10d.

  The processing circuit 61 cuts off communication between the pipes 10u, 10r, 10l, and 10d in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R.

  Specifically, after receiving the signals sent from the sensors 211 to 214, the processing circuit 61 determines a predetermined one of the pipelines 10u, 10r, 101, and 10d based on the pressure detection results of the sensors 211 to 214. The suction through the pipe line in which a pressure higher than the threshold value is detected is turned off by turning off any of the corresponding switches 62u, 62r, 62l, 62d and closing any of the valves 70u, 70r, 70l, 70d. The signal to be transmitted is sent to any of the valves 70u, 70r, 70l, 70d to shut off.

  For example, when the sensor 214 detects that the pressure in the pipeline 10d is higher than a predetermined threshold, the processing circuit 61 turns off the switch 62d based on the detection result of the sensor 214, thereby turning on the valve 70d. By closing, the suction through the conduit 10d is shut off.

  Similarly, when the sensors 211 to 213 detect that the pressures in the pipelines 10u, 10r, and 10l are higher than a predetermined threshold, the processing circuit 61 also turns off the switches 62u, 62r, and 62l, respectively. Then, by closing the valves 70u, 70r, 70l, the suction through the pipes 10u, 10r, 10l is shut off.

  From the above, for example, when the sensor 214 detects that the pressure in the pipe 10d is higher than a predetermined threshold, the gas A is sucked only from the pipes 10u, 10r, and 10l. That is, since the liquid is not sucked from the pipe 10d, the pipe 10d in which the opening 10ds is located in the region R does not suck the liquid.

In the above, the case where the suction of one conduit is interrupted has been described as an example, but the same applies to the case where the suction of two or more conduits is interrupted.
Further, when any of the pipes 10u to 10d is performing suction, the pressure in the pipes 10u to 10d generated when the liquid is suddenly sucked together with the gas in the subject together with the gas is set to a predetermined value. When the sensors 211 to 214 detect a change beyond the range, the processing circuit 61 may cut off the communication of the corresponding pipeline.

  The other configuration of the insertion system 1 is the same as that of the above-described first and second embodiments.

  As described above, in the present embodiment, it has been described that the sensors 211 to 214 including the pressure sensors for detecting the region R are provided in the pipelines 10u, 10r, 10l, and 10d, respectively.

  Further, the sensors 211 to 214 are connected to the pipes 10u, 10r, 10l, and 10d via the pipes in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R based on the pressure detection results of the sensors 211 to 214. The processing circuit 61 shuts off the suction by turning any of the valves 70u, 70r, 70l, 70d provided in the pipe line to a closed state by turning off any of the switches 62u, 62r, 62l, 62d. It is indicated that it is electrically connected.

  According to this, since suction is not performed through the conduit in which the opening is located in the region R, when the gas A in the subject is suctioned using the conduits 10u, 10r, 10l, and 10d, Even so, the gas A is not sucked against the intention of the operator, so that only the gas A can be efficiently sucked.

  Therefore, the same effects as those of the above-described first and second embodiments can be obtained.

(Fourth embodiment)
FIG. 6 is a diagram schematically showing a configuration for sucking a gas containing a solid particle component in the insertion system of the present embodiment, and FIG. 7 is a diagram showing a state in which a lesion and a liquid of a subject are collected on a monitor of the insertion system in FIG. FIG. 9 is a diagram showing an example in which a region is displayed.

  The configuration of the endoscope and the insertion system according to the fourth embodiment is the same as the endoscope 2 and the insertion system 1 according to the first embodiment illustrated in FIGS. 1 to 3, and the second embodiment illustrated in FIG. 4. The configuration of the endoscope and the insertion system is different from that of the endoscope and the insertion system of the third embodiment shown in FIG. 5 in that the detection unit has a subject image acquisition unit.

  Therefore, the same components as those of the first to third embodiments are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 6, the pipes 10u, 10r, 10l, and 10d are omitted to simplify the drawing.

  As shown in FIG. 6, in the present embodiment, the detection unit 315 that detects the region R in the subject is configured to detect a subject image in the subject via the objective lens 21 provided in the insertion unit 4. It has a subject image acquisition unit 310 to acquire.

  Note that the up, down, left, and right directions of the subject image acquisition unit 310 coincide with the up, down, left, and right directions of the monitor 36. Further, the detection unit 315 is electrically connected to the processing circuit 61.

  The detection unit 315 uses the subject image acquired by the subject image acquisition unit 310 to detect a region R in the subject as shown in FIG. 7 based on the color information or the luminance information.

  Specifically, the detection unit 315 uses the subject image acquired by the subject image acquisition unit 310 and uses the fact that the region R in the subject has a different color from other regions and has a higher luminance value. , An area R in the subject is detected.

  Note that the detection unit 315 may use the subject image acquired by the subject image acquisition unit 310 to detect a contour on the edge of the water at a portion having a difference in contrast, and may detect the region R in the subject.

  The processing circuit 61 cuts off communication between the pipes 10u, 10r, 10l, and 10d in which the openings 10us, 10rs, 10ls, and 10ds are located in the region R.

  Specifically, the processing circuit 61 receives the signal sent from the detection unit 315, and then, based on the detection result of the color information or the luminance information of the detection unit 315, determines whether the pipeline 10u, 10r, 10l, 10d Inside, the suction through the conduit in which the opening is located in the region having the color or brightness in the subject is turned off by turning off any of the corresponding switches 62u, 62r, 62l, 62d, and the valves 70u, 70r, 70l, The signal is turned off by sending a signal to close one of the valves 70d to any of the valves 70u, 70r, 70l, 70d.

  For example, when the detection unit 315 detects that the opening 10ds is located in the region R, the processing circuit 61 closes the valve 70d by turning off the switch 62d based on the detection result of the detection unit 315. By doing so, the suction through the conduit 10d is shut off.

  Similarly, when the detection unit 315 detects that the openings 10us, 10rs, and 10ls are located in the region R, the processing circuit 61 turns off the switches 62u, 62r, and 62l, respectively. By closing the valves 70u, 70r, 70l, respectively, the suction through the lines 10u, 10r, 10l is shut off.

  From the above, for example, when the detection unit 315 detects that the opening 10ds is located in the region R, the gas A is sucked only from the pipelines 10u, 10r, and 10l. That is, since the liquid is not sucked from the pipe 10d, the pipe 10d in which the opening 10ds is located in the region R does not suck the liquid.

  In the above, the case where the suction of one conduit is interrupted has been described as an example, but the same applies to the case where the suction of two or more conduits is interrupted.

  Other configurations of the insertion system 1 are the same as those of the above-described first to third embodiments.

  As described above, in the present embodiment, it has been described that the detection unit 315 having the subject image acquisition unit 310 for detecting the region R is provided in the insertion unit 4.

  In addition, the detection unit 315 detects a tube in which the opening 10us, 10rs, 10ls, and 10ds is located in the region R among the pipelines 10u, 10r, 10l, and 10d based on the detection result of the color information or the luminance information of the detection unit 315. A process of shutting off suction through a passage by closing any of the valves 70u, 70r, 70l, 70d provided in the conduit by turning off any of the switches 62u, 62r, 62l, 62d. It is shown that it is electrically connected to the circuit 61.

  According to this, since suction is not performed through the conduit in which the opening is located in the region R, when the gas A in the subject is suctioned using the conduits 10u, 10r, 10l, and 10d, Even so, the gas A is not sucked against the intention of the operator, so that only the gas A can be efficiently sucked.

Therefore, in addition to obtaining the same effects as those of the above-described first to third embodiments, sensors are respectively provided in the pipelines 10u, 10r, 10l, and 10d as in the above-described first to third embodiments. Since there is no need to provide them, the insertion system 1 can be reduced in size.
FIG. 15 is a diagram illustrating a modified example in which the detection unit in FIG. 6 is provided inside the control unit.
In the above-described embodiment, the detection unit 315 is provided, for example, in the insertion unit 4. However, not all of the detection units 315 need to be provided in the insertion unit 4, and the subject image acquisition unit 310 is viewed endlessly. It is provided inside the mirror 2 (in the insertion section 4 or the operation section 3), and at least a part of the detection section 315 is inside the control section 60 (inside the processing circuit 61) as shown in FIG. ) May be provided in a portion other than the insertion portion 4.

  Hereinafter, a modified example will be described with reference to FIG. FIG. 8 is a diagram schematically illustrating a modification in which the control unit in FIG. 2 is provided in a pump.

  In the above-described first to fourth embodiments, it has been described that the control unit 60 is provided in the video processor 34.

  The present invention is not limited to this, and the control unit 60 may be provided in the pump 40 as shown in FIG.

  Although not shown, it goes without saying that the control unit 60 may be provided in the endoscope 2.

  Another modification is shown with reference to FIG. FIG. 9 is a diagram schematically showing a modified example in which a pump for sucking a gas containing a solid particle component in the insertion system of FIGS. 2 and 4 to 6 is provided for each pipeline.

  In the above-described first to fourth embodiments, it has been described that one pump 40 is connected to each of the pipelines 10u, 10r, 10l, and 10d.

  The present invention is not limited to this, and pumps 40u, 40r, 40l, and 40d may be separately connected to the pipelines 10u, 10r, 10l, and 10d, respectively, as shown in FIG. In this case, the pipes 10u, 10r, 10l, and 10d need not be connected to one.

  Note that the valves 70u, 70r, 70l, 70d may also be individually and independently connected to the pipes 10u, 10r, 10l, 10d instead of as the valve unit 70.

  Further, in this configuration, the processing circuit 61, based on the detection result of the detection unit, switches the suction through the pipes of which the opening is located in the region R among the pipes 10u, 10r, 10l, and 10d with the switch 62u, It has a function of stopping as well as shutting off via the valves 62u, 62l, 62d and the valves 70u, 70r, 70l, 70d.

  Specifically, the processing circuit 61 also has a function of stopping the suction of the pump connected to the pipeline where the opening is located in the region R.

  More specifically, the processing circuit 61 sucks the pumps 40u, 40r, 40l, 40d connected to the pipelines 10u, 10r, 10l, 10d where the openings 10us, 10rs, 10ls, 10ds are located in the region R. It has a function to stop.

  For example, when the opening 10ds is located in the region R, it has a function of stopping suction of the pump 40d connected to the conduit 10d.

  In the above, the case where the suction of one pipe is stopped is described as an example, but the same applies to the case where the suction of two or more pipes is stopped.

  Other configurations are the same as those of the above-described first to fourth embodiments.

  In FIG. 9, the detection unit is illustrated by taking the configuration of the first embodiment as an example, but this configuration is the same as the configuration of the detection units of the second to fourth embodiments. .

  With such a configuration, the same effects as those of the above-described first to fourth embodiments can be obtained.

  Hereinafter, another modified example will be described with reference to FIG. FIG. 10 is a view schematically showing a modification in which a pump for sucking a gas containing a solid particle component in the insertion system of FIGS. 2 and 4 to 6 is provided for each UD line and each RL line. is there.

  As shown in FIG. 10, one pump 40ud may be connected to the pipes 10u and 10d serving as UD pipes, and one pump 40rl may be connected to the pipes 10r and 10l serving as RL pipes. Absent.

  In this configuration, as shown in FIG. 9, the processing circuit 61 passes through a pipe whose opening is located in the region R among the pipes 10 u, 10 r, 10 l, and 10 d based on the detection result of the detection unit. It does not have a function to stop suction.

  This is because, for example, if the opening 10ds is located in the region R, and if the suction of the pump 40ud is stopped, the gas A through the pipe 10u is obtained even though the opening 10us is not located in the region R. This is because it becomes impossible to aspirate.

  Therefore, similarly to the above-described first to fourth embodiments, the processing circuit 61 determines, based on the detection result of the detection unit, a pipe line whose opening is located in the region R among the pipe lines 10u, 10r, 10l, and 10d. Has only the function of shutting off the suction via the switch 62u, 62r, 62l, 62d and the valve 70u, 70r, 70l, 70d.

  Other configurations are the same as those of the above-described first to fourth embodiments.

  In FIG. 10, the detection unit is illustrated using the configuration of the first embodiment as an example, but this configuration is the same as the configuration of the detection units of the second to fourth embodiments. .

  Further, one pump may be provided in the pipeline 10u and the pipeline 10r or the pipeline 10l, and one pump may be provided in the pipeline 10d and the pipeline 10r or the pipeline 10l.

  With such a configuration, the same effects as those of the above-described first to fourth embodiments can be obtained.

  In the following, another modified example will be described with reference to FIG. FIG. 11 is a diagram schematically showing a modification in which the suction amount of the pump is increased in the configuration in which the gas including the solid particle component is sucked in the insertion systems of FIGS. 2 and 4 to 6.

  As illustrated in FIG. 11, the control unit 60 may further perform control to increase the suction amount in the pipes 10u, 10r, 10l, and 10d other than the pipes whose openings are located in the region R.

  Specifically, for example, when the opening 10ds is located in the region R, the control unit 60 may perform control to close the valve 70d and increase the suction amount of the pump 40.

  In the case where the pump is provided separately as shown in FIG. 9, the control unit 60 may stop the pump 40d and perform control to increase the suction amount of the other pumps 40u, 40r, and 40l. good.

  Further, as shown in FIG. 10, when a pump is provided for each RL line and each UD line, control may be performed to increase the suction amount of the pumps 40rl and 40ud.

  According to this, for example, even if the gas A is not suctioned from the pipe 10d, the suction amount of the gas A is increased from the other pipes 10u, 10r, and 10l, so that the gas A is sucked. Even with the passages 10u, 10r, and 10l, the same amount of suction can be secured as when suction is performed with the four conduits 10u, 10r, 10l, and 10d.

  When the opening 10ds deviates from the region R, the control unit 60 controls the pump 40 in FIG. 11, the other pumps 40u, 40r, 40l in FIG. 9, and the pumps 40rl, 40ud in FIG. May be performed to reduce the suction amount.

  The same applies to the case where the openings of other conduits are located in the region R and the case where the openings of two or more conduits are located in the region R.

  That is, the suction amount of the gas A can be kept constant since the control unit 60 can adjust the suction amount of the pump.

  Therefore, it is not necessary to increase the diameter of the pipes 10u, 10r, 10l, and 10d and to increase the size of the pump 40 in order to secure a constant suction amount of the gas A. Can be realized.

  Other configurations are the same as those of the above-described first to fourth embodiments.

  Note that, in FIG. 11, the detection unit is illustrated by taking the configuration of the first embodiment as an example, but this configuration is the same as the configuration of the detection units of the second to fourth embodiments. .

  With such a configuration, the same effects as those of the above-described first to fourth embodiments can be obtained.

  In the following, another modified example will be described with reference to FIGS. 12 is a partial cross-sectional view schematically showing a state where the insertion portion is inserted into the inside of the overtube, FIG. 13 is a front view of the insertion portion and the overtube of FIG. 12, viewed from the XII direction in FIG. 12, FIG. 14 is a front view showing another example of the plurality of conduits in FIG.

  In the above-described first to fourth embodiments, the case where the pipelines 10u, 10r, 10l, and 10d are provided inside the insertion section 4 has been described as an example.

  The present invention is not limited to this. As shown in FIG. 12, in the insertion system 1, when the insertion section 4 has an overtube 80 inserted therein, as shown in FIGS. The 10r, 10l, and 10d may be inserted into the overtube 80 and positioned so as to surround the outer periphery of the insertion section 4.

  Specifically, as shown in FIG. 13, the pipelines 10u, 10r, 10l, and 10d may be formed so as to be separated in a space between the outer circumference of the insertion portion 4 and the inner circumference of the overtube 80. It does not matter, and as shown in FIG. 14, tubular pipes 10u, 10r, 10l, and 10d may be provided in the space between the outer circumference of the insertion section 4 and the inner circumference of the overtube 80.

  A part of the plurality of conduits may be provided in the endoscope 2 and a part may be provided in a space between the outer circumference of the insertion section 4 and the inner circumference of the overtube 80.

  With such a configuration, the same effects as those of the above-described first to fourth embodiments can be obtained. In addition, if the overtube is a disposable type, the cleaning and disinfecting processing of the pipes 10u, 10r, 10l, and 10d is performed. Becomes unnecessary.

  In the configuration using the overtube 80, the number of pipelines is not limited to four, and the locations of the pipelines and the openings are not limited to the UP direction, the DOWN direction, the RIGHT direction, and the LEFT direction.

  Hereinafter, other modified examples will be described.

  In the above-described first to fourth embodiments, the pipes 10u, 10r, 10l, and 10d have been described as pipes for sucking the gas A. However, the present invention is not limited to this. By depressing the provided mode switching button (not shown), the function of sucking only the gas A of the above-described first to fourth embodiments is invalidated. Of course, it may be configured to suck.

  Further, in the first to fourth embodiments described above, the pump 40 is always driven, and the opening is shown to close the valve of the pipeline located in the region R or to stop the pump. The present invention is not limited to this, and it is a matter of course that the pump 40 may always be stopped and only the pumps of the pipes other than the pipes are driven while the pumps of the pipes whose openings are located in the region R are stopped. .

  Further, the endoscopes of the first to fourth embodiments described above are exemplified by medical endoscopes, but are not limited thereto, and can be applied to industrial endoscopes. Needless to say.

  Further, the insertion device is not limited to an endoscope, and the configurations of the above-described first to fourth embodiments are also applicable to a device having an insertion portion to be inserted into another subject.

1. Insertion system 2. Insertion device (endoscope)
4 Insertion part 10d Pipeline 10ds Opening 10l Pipeline 10ls Opening 10r Pipeline 10rs Opening 10u Pipeline 10us Opening 15 Sensor part (detection part)
40 pump 40d pump 40l pump 40r pump 40rl pump 40u pump 40ud pump 60 control unit (blocking unit)
80: overtube 90: cautery device 115: sensor unit (detection unit)
215 Sensor part (detection part)
310: subject image acquisition unit 315: detection unit A: gas containing solid particle components g: direction of gravity R: area where liquid has accumulated

Claims (10)

An insertion portion to be inserted into the subject;
A plurality of conduits provided in the insertion portion, each having an opening on the distal end side of the insertion portion,
A detection unit that detects an area where liquid is accumulated in the subject,
Based on a detection result of the detection unit, among a plurality of the pipelines, a blocking unit that blocks or stops suction through the pipeline where the opening is located in a region where the liquid is stored,
With
The detection unit detects a direction of gravity of the insertion unit,
The insertion device, wherein the blocking unit blocks or stops suction through the conduit in which the opening is located below the gravitational direction based on a result of the detection unit detecting the gravitational direction. An insertion portion to be inserted into the subject;
A plurality of conduits provided in the insertion portion, each having an opening on the distal end side of the insertion portion,
A detection unit that detects an area where liquid is accumulated in the subject,
Based on a detection result of the detection unit, among a plurality of the pipelines, a blocking unit that blocks or stops suction through the pipeline where the opening is located in a region where the liquid is stored,
With
The detection unit has a subject image acquisition unit that acquires a subject image in the subject, and the liquid in the subject is based on color information or luminance information of the subject image acquired by the subject image acquisition unit. Detect the accumulated area,
The blocking unit may block or stop the suction through the conduit in which the opening is located in a region where the liquid is stored in the subject based on a detection result of the color information or the luminance information of the detection unit. An insertion device characterized by the following.   The insertion device according to claim 2, wherein the insertion unit is provided in an endoscope having the subject image acquisition unit.   Each of the plurality of conduits is connected to a pump that suctions a gas containing a solid particle component diffused into the subject by performing cauterization by applying energy to the tissue in the subject and cauterizing the tissue. The insertion device according to claim 1, wherein the insertion device is used.   The insertion device according to claim 1, wherein the blocking unit blocks communication of the conduit in which the opening is located in a region where the liquid is stored.   The insertion device according to claim 4, wherein the blocking unit stops suction of the pump connected to the conduit in which the opening is located in a region where the liquid is stored.   2. The control device according to claim 1, wherein the blocking unit further performs a control to increase a suction amount of the pipes other than the pipes in which the opening is located in a region where the liquid is stored, of the plurality of pipes. 3. Or the insertion device of 2. The insertion part further includes an overtube inserted therein,
The insertion device according to claim 1, wherein the plurality of conduits are inserted into the overtube, and are positioned so as to surround an outer circumference of the insertion portion. An insertion unit to be inserted into the subject, and an insertion device provided in the insertion unit and having a plurality of conduits each having an opening on the distal end side of the insertion unit,
An ablation device that applies energy to the tissue in the subject to cauterize,
A detection unit that detects an area where liquid is accumulated in the subject,
Based on a detection result of the detection unit, among a plurality of the pipelines, a blocking unit that blocks or stops suction through the pipeline where the opening is located in a region where the liquid is stored,
The gas containing the solid particle component diffused into the subject by being cauterized by the cauterization device is connected to each of the plurality of conduits, and the blocking unit is provided in the plurality of conduits. A pump that suctions from the pipe line other than the pipe line whose suction is cut off or stopped,
With
The detection unit detects a direction of gravity of the insertion unit,
The insertion system according to claim 1, wherein the blocking unit blocks or stops suction via the conduit in which the opening is located below the gravity direction, based on a result of the gravity direction detection by the detection unit. An insertion unit to be inserted into the subject, and an insertion device provided in the insertion unit and having a plurality of conduits each having an opening on the distal end side of the insertion unit,
An ablation device that applies energy to the tissue in the subject to cauterize,
A detection unit that detects an area where liquid is accumulated in the subject,
Based on a detection result of the detection unit, among a plurality of the pipelines, a blocking unit that blocks or stops suction through the pipeline where the opening is located in a region where the liquid is stored,
The gas containing the solid particle component diffused into the subject by being cauterized by the cauterization device is connected to each of the plurality of conduits, and the blocking unit is provided in the plurality of conduits. A pump that suctions from the pipe line other than the pipe line whose suction is cut off or stopped,
With
The detection unit has a subject image acquisition unit that acquires a subject image in the subject, and the liquid in the subject is based on color information or luminance information of the subject image acquired by the subject image acquisition unit. Detect the accumulated area,
The blocking unit may block or stop the suction through the conduit in which the opening is located in a region where the liquid is stored in the subject based on a detection result of the color information or the luminance information of the detection unit. An insertion system characterized by the above.

Images