JP2016007276A - Air supply apparatus and air supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air supply apparatus capable of determining whether or not air can be properly supplied to the inside of a lumen in a state that a treatment instrument is inserted into a treatment instrument insertion channel.SOLUTION: An air supply apparatus 21 includes an air supply pipe line 21C provided between a connector 21A for an air supply tube and a connector 21B for a cylinder, a control part 58, and a message display part 47. After air is supplied to an air supply tube 24 through the air supply pipe line 21C in a state that a treatment instrument 31 is inserted into a treatment instrument insertion channel 19, the control part 58 measures the time from when the air supply is stopped until a pressure P inside the air supply pipe line 21C reaches a predetermined value TH2. Based on the time measured, the message display part 47 outputs, by a message, the information indicating whether or not an endoscope 11 can be used in combination with the treatment instrument 31, and, if the endoscope 11 cannot be used in combination with the treatment instrument 31, the information on an endoscope that can be used.

Description

  The present invention relates to an air supply device and an air supply system, and more particularly to an air supply device and an air supply system for supplying a gas for observation through a treatment instrument insertion channel of an endoscope.

Conventionally, endoscopes have been widely used in the medical field and the like. In the medical field, an operator inserts an insertion portion of an endoscope into a subject and performs an endoscopic examination.
In the endoscopy, in some cases, gas is injected into the abdominal cavity or the lumen for the purpose of securing the endoscope visual field and the operation area of the treatment tool such as forceps. In the case of injecting gas into the lumen of the stomach, large intestine, etc., gas may be performed through the treatment instrument insertion channel.

  In JP-A-2005-287840, an air supply tube of an air supply device is connected to a forceps hole provided in an endoscope, and air is supplied through a treatment instrument insertion channel into which a treatment instrument is inserted. An air supply device that automatically controls the intracavity pressure has been proposed. The proposed air supply device measures the intraluminal pressure and controls various valves so that the intraluminal pressure becomes a preset pressure.

JP 2005-287840 A

  However, when air supply control is performed with the treatment instrument inserted in the treatment instrument insertion channel, the gap between the treatment instrument insertion channel and the treatment instrument, that is, the outer diameter of the treatment instrument and the inner diameter of the treatment section channel If the difference is small, the intraluminal pressure cannot be measured correctly, and air supply into the lumen cannot be properly performed.

  There are various types of treatment instrument insertion channels and treatment instruments. Therefore, if the treatment tool is inserted into the treatment tool insertion channel and the air supply device does not actually supply air to the treatment tool insertion channel, the operator does not know whether the air supply can be performed appropriately. There's a problem.

  If it is found that air supply is not performed properly after the start of surgery, the surgeon removes the endoscope from the lumen and replaces it with an endoscope having a treatment instrument insertion channel with a larger inner diameter. Must be done intraoperatively. The replacement of the endoscope is not only troublesome, but also increases the operation time, resulting in an increased burden on the patient.

  Therefore, the present invention provides an air supply device capable of determining whether or not air can be appropriately supplied into a lumen before surgery in a state where the treatment tool is inserted into the treatment tool insertion channel. And an air supply system.

  According to one aspect of the present invention, a first connection portion to which a tube connected to an opening of a treatment instrument insertion channel of an endoscope is connected, a second connection portion to which an air supply source is connected, With the air supply conduit provided between the first connection portion and the second connection portion, and the treatment instrument inserted through the treatment instrument insertion channel, to the tube via the air supply conduit Based on the time measured by the time measuring unit, the time measuring unit for measuring the time from the stop of the air supply until the pressure in the air supply pipeline reaches a predetermined value, First information indicating whether or not the endoscope is usable in combination with the treatment tool, and usable endoscope when the endoscope is not usable in combination with the treatment tool An information output unit for outputting second information about the mirror; It is possible to provide a.

  According to one aspect of the present invention, it is possible to provide an air supply system including the air supply device of the present invention, the endoscope, and the tube.

  According to the present invention, an air supply device and an air supply system capable of determining whether or not air can be appropriately supplied into a lumen in a state where the treatment tool is inserted into the treatment tool insertion channel. Can be provided.

It is a block diagram which shows the structure of the surgery system in connection with embodiment of this invention. It is a front view of the operation panel of the air supply apparatus 21 in connection with embodiment of this invention. It is a block diagram which shows the internal structure of the air supply apparatus 21 in connection with embodiment of this invention. It is a flowchart which shows the flow of the process of the pretest in connection with embodiment of this invention. It is a graph which shows the change of the pressure P in the lumen at the time of the pretest in connection with embodiment of this invention. It is a figure which shows the structure of the table data TBL memorize | stored in the memory 58b in connection with embodiment of this invention. FIG. 10 is a table TBL2 indicating whether or not a treatment tool can be inserted into a treatment tool insertion channel and whether or not appropriate air supply is possible in a combination of a treatment tool and an endoscope according to an embodiment of the present invention. It is a front view of the operation panel of the air supply apparatus 21 in connection with the modification 3 of embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
(Constitution)
FIG. 1 is a configuration diagram showing a configuration of a surgical system according to the present embodiment. The surgical system 100 includes an endoscope system 1, an air supply system 2, and a treatment system 3. The surgical system 100 further mainly includes a system controller 4, a monitor 5 that is a display device, a central display panel 6, and a cart 7. A patient 8 is lying on the operating table 9.

The endoscope system 1 is mainly configured by an endoscope 11, a light source device 12, and a camera control unit (hereinafter referred to as CCU) 13.
The endoscope 11 is a flexible endoscope having a flexible insertion portion 14 that is inserted into a lumen such as the large intestine. The endoscope 11 includes an operation unit 15 and a universal cord 16. In the operation section 15, an air supply / water supply switch 15a, a suction switch 15b, a bending operation knob 15c for bending a bending section (not shown) provided at the distal end of the insertion section 14, and a treatment instrument are inserted. A treatment instrument insertion port 18 is provided. A treatment instrument insertion channel 19 is formed from the treatment instrument insertion port 18 to the opening of the distal end portion of the insertion portion 14 as indicated by a dotted line. A light source connector 16 a is provided at the base end of the universal cord 16.

  The light source device 12 supplies illumination light to the endoscope 11 via the universal cord 16. A light source connector 16a is detachably connected to the light source device 12. By connecting the light source connector 16 a to the light source device 12, illumination light is transmitted through a light guide fiber (not shown) and emitted from an illumination window provided at a distal end portion (not shown) of the insertion portion 14.

  The CCU 13 converts an electrical signal that has been imaged and photoelectrically converted into an image signal on an image sensor provided at a distal end (not shown) of the insertion portion 14 of the endoscope 11 into a video signal, for example, on the monitor 5 or the centralized display panel 6. The video signal is output. As a result, an endoscopic image of the subject captured by the endoscope 11 is displayed on the screen of the monitor 5 or the centralized display panel 6. The light source connector 16 a is provided with a connector 16 b for connecting to the light source device 12. The light source connector 16 a and the CCU 13 are connected by an electric cable 17.

  The air supply system 2 is mainly configured by an air supply device 21, a carbon dioxide cylinder 22 as an air supply source, an insertion port adapter (hereinafter abbreviated as an adapter) 23, and an air supply tube 24. Carbon dioxide gas is stored in the carbon dioxide cylinder 22 in a liquefied state. The air supply device 21 is provided with an air supply tube connector 21A as a supply base and a cylinder connector 21B as a high pressure base.

An air supply line 21C (FIG. 3) is provided between the air supply tube connector 21A and the cylinder connector 21B.
One end portion of the air supply tube 24 is connected to the air supply tube connector 21A, and the other end portion of the air supply tube 24 is a tube connecting portion provided at, for example, a side portion of the adapter 23 which is a T-shaped tube. 23a. The air supply tube 24 is made of silicon or Teflon (registered trademark). That is, the air supply tube connector 21A constitutes a connection portion to which the air supply tube 24 connected to the treatment instrument insertion port 18 which is an opening of the treatment instrument insertion channel 19 of the endoscope 11 is connected.

The air supply device 21 and the carbon dioxide cylinder 22 are connected by a high-pressure gas tube 25. One end of the high-pressure gas tube 25 is connected to the carbon dioxide gas cylinder 22, and the other end is connected to the cylinder connector 21B. Carbon dioxide in the carbon dioxide cylinder 22 is supplied to the air supply device 21 through the high-pressure gas tube 25, and is inserted through the air supply tube 24 under the control of the control unit 58 (FIG. 3) of the air supply device 21. It is supplied into the treatment instrument insertion channel 19 in the section 14. That is, the cylinder connector 21B constitutes a connection portion to which an air supply source is connected.
When a predetermined operation instruction is given to the air supply device 21, the air supply device 21 starts the supply of carbon dioxide gas, and controls the supply of carbon dioxide gas so as to maintain a predetermined set pressure.

  The treatment system 3 includes a treatment tool 31 and an electric knife device 32. The treatment tool 31 and the electric knife device 32 are connected by a cable 33 for supplying high-frequency power. The treatment tool 31 is a treatment tool for a predetermined treatment such as endoscopic submucosal dissection (ESD). The surgeon can incise and peel, for example, the mucosa layer and the submucosa using the treatment tool 31.

  The treatment instrument 31 is inserted into the treatment instrument insertion channel 19 in the insertion portion 14 from the treatment instrument insertion port 18 via the adapter 23. The surgeon can perform the treatment by causing the distal end portion of the treatment tool 31 to protrude from the distal end portion of the insertion portion 14.

The system controller 4 is a device that collectively controls the entire surgical system 100. The system controller 4 is connected to the centralized display panel 6, the air supply device 21, the electric knife device 32, the light source device 12, and the CCU 13 through a communication line (not shown) so that they can communicate with each other.
On the screen of the monitor 5, an endoscopic image of a subject captured by the endoscope 11 is displayed in response to a video signal output from the CCU 13.

The centralized display panel 6 includes a display device such as a liquid crystal display and a touch sensor unit provided integrally on the display surface of the display device. Since the display of the centralized display panel 6 is connected to the system controller 4, the centralized display function of the operation state of the endoscope peripheral device together with the display function of the endoscope image of the subject on the display screen, The operation switch of the mirror peripheral device has a display function of a setting screen, and further has an operation function of operating the operation switch by touching a predetermined area of the touch sensor unit.
On the cart 7, an electric knife device 32, a light source device 12, a CCU 13, an air supply device 21, a system controller 4, a centralized display panel 6, and a carbon dioxide gas cylinder 22 are mounted.

FIG. 2 is a front view of the operation panel of the air supply device 21. As shown in FIG. 2, a power switch 41, an air supply switch 42, a pretest switch 43, an air supply tube connector 21A, and a display unit 44 are provided below the operation panel on the front surface of the air supply device 21. Is provided.
The power switch 41 is an operation switch for turning on / off the power of the air supply device 21.

  The air supply switch 42 is an operating device for operating the air supply by the air supply device 21 to be switched on / off. When the air supply switch 42 is pressed, air is supplied. That is, the air supply switch 42 constitutes an air supply instruction operating device that instructs air supply from the distal end portion of the insertion portion 14 of the endoscope 11 into the subject. In the vicinity of the air supply switch 42, a state display lamp 45a is provided. When the status display lamp 45a is lit, it indicates that the air supply switch 42 is in the on state.

  The pretest switch 43 is an operating device for instructing execution of a pretest described later. When the pretest switch 43 is pressed, a pretest is performed. That is, the pretest switch 43 is a predetermined operating device for executing a pretest. In the vicinity of the pretest switch 43, a status display lamp 45b is provided. When the status display lamp 45b is lit, it indicates that the pretest switch 43 is in the on state.

  As described above, one end of the air supply tube 24 is connected to the air supply tube connector 21A. A state display lamp 45c is provided in the vicinity of the air supply tube connector 21A. When the state display lamp 45c is lit, it indicates that the air supply state is present.

The display unit 44 includes a display device such as a liquid crystal display and a touch sensor unit provided integrally on the display surface of the display device. The display unit 44 includes a pressure display unit 46, a message display unit 47, and a remaining gas display unit 48.
The pressure display unit 46 is a display area for displaying the pressure in the lumen. The pressure display unit 46 displays the pressure detected by the pressure sensor 55 in units of mmHg. The message display unit 47 is a display area for displaying a message to be described later and giving a predetermined notification to the surgeon. The remaining gas amount display unit 48 includes a plurality of display blocks, and indicates the remaining amount of carbon dioxide in the carbon dioxide cylinder 22 by the number of blocks that are lit.

  Next, the internal configuration of the air supply device 21 will be described with reference to FIG. FIG. 3 is a block diagram showing the internal configuration of the air supply device 21. As shown in FIG. 3, a supply pressure sensor 51, a pressure reducer 52, an electropneumatic proportional valve 53 as a pressure adjusting unit, an electromagnetic valve 54 as an air supply control means, and a pressure as a pressure detection means are provided in the air supply device 21. A sensor 55, a flow rate sensor 56 as flow rate detection means, a relief valve 57 as discharge means, and a control unit 58 as control means are mainly provided.

  The supply pressure sensor 51 is connected to the input side of the decompressor 52. The supply pressure sensor 51 measures the pressure in the pipe line connected to the cylinder connector 21 </ b> B, that is, the pressure of carbon dioxide supplied from the carbon dioxide cylinder 22 and outputs the measured pressure to the controller 58. The decompressor 52 decompresses the carbon dioxide gas supplied to the pipe connected to the cylinder connector 21B to a predetermined pressure.

  The electropneumatic proportional valve 53 connected to the output of the decompressor 52 electrically changes the pressure by changing the force of the decompression spring acting on the pressure control thin film by an electromagnet formed from a magnet coil (not shown) and a magnetic needle. It is configured to adjust, and the opening degree is variable in proportion to the input voltage (current). The electropneumatic proportional valve 53 can reduce the pressure of the carbon dioxide gas decompressed by the decompressor 52 within a range of 0 to 500 mmHg based on a control signal output from the control unit 58.

  The electromagnetic valve 54 connected to the output of the electropneumatic proportional valve 53 is opened and closed based on a control signal output from the control unit 58. The electromagnetic valve 54 constitutes a pipeline opening / closing section provided on the air supply pipeline 21C. By controlling the electromagnetic valve 54 which is a pipe opening / closing part, air is supplied to the air supply tube 24 via the air supply line 21C.

  The pressure sensor 55 detects the pressure in the air supply conduit 21 </ b> C connected to the output of the electromagnetic valve 54, and outputs the detection result to the control unit 58. That is, the pressure sensor 55 is a pressure detector that detects the pressure in the air supply conduit 21C.

  The flow rate sensor 56 provided in the air supply line 21C connected to the output of the electromagnetic valve 54 measures the flow rate of the carbon dioxide gas supplied to the air supply tube connector 21A, and the measurement result is sent to the control unit 58. Output.

  The relief valve 57 connected to the output of the flow sensor 56 is opened and closed based on a control signal from the control unit 98. When the relief valve 57 is open, the gas sent to the relief valve 57 is released into the atmosphere. As a result, the carbon dioxide gas in the air supply conduit 21C is released into the atmosphere, and the pressure in the lumen is reduced.

  Accordingly, the liquid carbon dioxide gas stored in the carbon dioxide gas cylinder 22 is sent into the air supply device 21 and depressurized by the pressure reducer 52, and then based on the control signal output from the control unit 58. 21C is supplied into the lumen of the subject via the air supply tube 24 and the like.

  The control unit 58 includes a central processing unit (hereinafter referred to as a CPU) 58a and a memory 58b such as a ROM and a RAM. Various programs are stored in the memory 58b, and a pretest program to be described later is also stored.

The control unit 58 includes a timer 58c and can measure time as will be described later. The timer 58c has a function of measuring time, a function of outputting a predetermined signal when a set time elapses, and the like. The timer 58c may be a hardware circuit or a software timer.
(Function)
Next, the operation of the air supply device 21 will be described with reference to FIG. FIG. 4 is a flowchart showing the flow of pretest processing. When the pretest switch 43 is pressed, the pretest process in FIG. 4 is executed by the CPU 58a of the control unit 58 reading out the pretest program from the memory 58b.

First, the necessary cables and tubes are connected between the endoscope system 1, the air supply system 2, and the treatment system 3.
Next, the treatment instrument 31 is inserted into the treatment instrument insertion channel 19 from the treatment instrument insertion port 18 of the endoscope 11, and the distal end portion of the treatment instrument 31 is protruded from the distal end portion of the insertion portion 14.

  For example, when the pretest switch 43 is pressed by a nurse, the control unit 58 controls the electropneumatic proportional valve 53 and the electromagnetic valve 54 so that the electropneumatic proportional valve 53 is opened by a predetermined amount and the electromagnetic valve 54 is opened. By doing so, air supply is started (S1). After the start of air supply, the pressure P in the lumen is monitored by the pressure sensor 55.

The control unit 58 monitors the output of the pressure sensor 55 and determines whether or not the pressure P in the lumen has exceeded a predetermined pressure TH1 as a threshold value (S2).
No processing is performed until the pressure P in the lumen reaches a predetermined pressure TH1 (S2: NO). When the pressure P reaches the predetermined pressure TH1 (S2: YES), the control unit 58 closes the electromagnetic valve 54 and stops air supply (S3).

The control unit 58 activates the timer 58c to start timing (S4).
The controller 58 determines whether or not the pressure P in the lumen is below a predetermined value TH2 as a threshold value (S5). Since the pressure P in the lumen leaks from the gap between the outer peripheral surface of the treatment instrument 31 and the inner peripheral surface of the treatment instrument insertion channel 19, the pressure P gradually decreases. The predetermined value TH2 is a pressure value lower than the predetermined pressure TH1. If the pressure P does not fall below the predetermined value TH2 (S5: NO), the control unit 58 performs no processing.

  When the pressure P falls below the predetermined value TH2 (S5: YES), the timer 58c is stopped (S6), and the table data TBL stored in advance is referred to based on the time MT measured by the timer 58c. A message is displayed (S7).

  That is, when an operation is performed on a predetermined operation device such as pressing the pretest switch 43, the processes S4 and S6 of the control unit 58 are executed. Then, the processes S4 and S6 of the control unit 58 perform air supply to the air supply tube 24 via the air supply line 21C in a state where the treatment tool 31 is inserted into the treatment tool insertion channel 19, and then supply air. Constitutes a time measuring unit that measures the time from the stop of the air pressure until the pressure P in the air supply pipe line 21C reaches the predetermined value TH2.

The pressure P in the lumen during the pretest is displayed on the pressure display unit 46, and the nurse can recognize the change in the pressure P.
FIG. 5 is a graph showing a change in the pressure P in the lumen during the pretest. After the pretest switch 43 is pressed, the electromagnetic valve 54 is opened, and at time t1, the pressure P in the lumen becomes a predetermined pressure TH1, and at time t2 after the period when the pressure P is stabilized, the electromagnetic valve 54 is Closed. Time measurement by the timer 58c is started at time t2.

After the time t2, the carbon dioxide gas delivered into the lumen is released from the gap between the treatment instrument insertion channel and the treatment instrument 31, so that the pressure P in the lumen decreases.
When the pressure P falls below the predetermined value TH2, the timer 58c stops timing.

FIG. 6 is a diagram showing a configuration of the table data TBL stored in the memory 58b.
The table data TBL stores message data to be displayed on the display unit 44 in correspondence with the measured time MT. In the case of FIG. 6, messages to be displayed are stored in advance for three cases where the measured time MT is 200 msec (milliseconds) or less, 200 msec to 300 msec or less, and 300 msec or more. .

  Therefore, in S8, when the measured time MT is 200 msec (milliseconds) or less, the control unit 58 refers to the table data TBL, reads the message “Pretest OK. 44 is displayed on the message display unit 47. That is, a message indicating that air can be supplied correctly via the treatment instrument insertion channel 19 of the endoscope currently used is displayed on the message display unit 47.

  When the measured time MT is 200 msec to 300 msec or less, the controller 58 refers to the table data TBL and displays a message “Pretest FAIL. Use CF forceps channel diameter of φ3.7 mm or more”. It is displayed on the message display unit 47 of the unit 44. That is, a message instructing to use a large intestine endoscope (CF) having an inner diameter of the treatment instrument insertion channel 19 of φ3.7 mm or more is displayed on the message display unit 47.

  When the measured time MT exceeds 300 msec, the control unit 58 refers to the table data TBL and displays a message “Pretest FAIL. Use GIF forceps channel diameter of φ3.2 mm or more” on the display unit 44. Is displayed on the message display unit 47. That is, a message for instructing to use an upper digestive tract endoscope (GIF) having an inner diameter of the treatment instrument insertion channel 19 of φ3.2 mm or more is displayed on the message display unit 47.

  Therefore, the table data TBL includes information on whether or not the endoscope is usable according to the measured time MT, and information on other endoscopes that can be used when the endoscope is not usable. Is a storage unit. The message display unit 47 includes information indicating whether or not the endoscope 11 can be used in combination with the treatment instrument 31 based on the time MT measured by the processes of S4 and S6, and the endoscope. When 11 is not usable in combination with the treatment instrument 31, information about usable endoscopes is read with reference to the table data TBL and displayed by a message to output information output unit Configure.

  As described above, when the pretest switch 43 is pressed, the above-described processing is executed, and a message is displayed on the message display unit 47. Therefore, before the operation, the nurse inserts the treatment tool 31 used in the operation into the treatment tool insertion channel 19 of the endoscope 11 and then executes the pretest, the message displayed on the message display unit 47 In the combination of the treatment tool to be used and the endoscope to be used, it can be confirmed whether the endoscope can appropriately supply air.

  Furthermore, since the displayed message indicates the endoscope to be used, the nurse can replace the endoscope with a correct air supply before the operation. As a result, it is not necessary to replace the endoscope during the operation, so that the operation time is not prolonged.

  In the embodiment described above, in the combination of the treatment instrument and the endoscope, when air supply cannot be performed appropriately, a message indicating one usable endoscope is displayed according to the measured time MT. However, when there are a plurality of usable endoscopes, a plurality of endoscopes may be included in the message.

  FIG. 7 is a table TBL2 indicating whether or not the treatment instrument can be inserted into the treatment instrument insertion channel and whether or not appropriate air supply is possible in the combination of the treatment instrument and the endoscope. In FIG. 7, “×” indicates that the treatment instrument 31 cannot be physically inserted into the treatment instrument insertion channel 19, and “−” indicates the treatment instrument 31 into the treatment instrument insertion channel 19. The insertion of the treatment instrument 31 is physically possible, but the air supply cannot be appropriately performed, and “◯” indicates that the treatment instrument 31 can be physically inserted into the treatment instrument insertion channel 19. And it shows that air can be sent appropriately.

  Therefore, for example, when the treatment tool is a Type A treatment tool and the pretest is executed in combination with the endoscope C, the message “Pretest OK. Will be.

  However, when the pre-test is executed by combining the Type A treatment tool and the endoscope A, the message display unit 47 displays “Pre-test FAIL. Endoscope B, C or forceps channel with forceps channel diameter of φ3.2 mm”. Please use the endoscope D with a diameter of 3.7 mm ".

When the pre-test is executed in combination with the endoscope C when the treatment tool is Type B, the message display unit 47 displays “Pretest FAIL. Endoscope B with forceps channel diameter of φ3.2 mm or forceps channel” Please use the endoscope D with a diameter of 3.7 mm ".
That is, a message for notifying a plurality of usable treatment tools may be displayed on the message display unit 47.

  In the above-described example, when the pretest switch 43 is pressed, the air supply device 21 supplies air so that the pressure P in the lumen becomes the predetermined pressure TH1, but the air supply is performed for a predetermined time, When the predetermined time elapses, the air supply is stopped, and the time until the predetermined pressure TH2 is reached after the stop may be measured. In that case, a plurality of tables corresponding to the pressure when the predetermined time elapses are prepared in advance, and the control unit 58 displays a message with reference to the table corresponding to the pressure when the predetermined time elapses.

Next, a modification of the above-described embodiment will be described. In addition, since the surgery system of each modification consists of the substantially same component as the surgery system 100 mentioned above, description is abbreviate | omitted about the same component and only a different structure is demonstrated.
(Modification 1)
In the above-described embodiment, the air supply device 21 is provided with the pretest switch 43, and when the pretest switch 43 is pressed, the processing of FIG. 4 is executed, but when the air supply switch 42 is pressed, FIG. You may make it perform the process of.

  That is, when the air supply switch 42 is pressed, the air supply device 21 executes a pretest, and when it is determined that air supply is appropriately possible as a result of the pretest, the air supply device 21 restarts the air supply. In the above example, when the measured time MT is 200 msec (milliseconds) or less, the control unit 58 refers to the table data TBL, and displays the message “Pretest OK. After the message is displayed on the message display unit 47, air supply is resumed.

  As a result of the pretest, when it is determined that the air supply cannot be performed appropriately, the control unit 58 does not resume the air supply. In the above example, when the measured time MT is 200 msec to 300 msec or less, and when the measured time MT exceeds 300 msec, the control unit 58 displays the above message on the message display unit 47 of the display unit 44. Do not resume air supply after displaying. That is, when the air supply switch 42 which is an air supply instruction operating device is operated, the control unit 58 measures the time by the processes of S4 and S6 before supplying air into the subject.

  The surgeon or nurse is notified by the displayed message that the air supply is not properly performed as a result of the pretest, and replaces the endoscope according to the instruction of the message. When the air supply switch 42 is pressed again after the endoscope replacement, a pretest is executed.

As described above, the pretest may be executed in conjunction with the air supply switch 42.
(Modification 2)
In the embodiment and the first modification described above, when the pretest switch 43 or the air supply switch 42 is pressed, the air supply device 21 executes the process of FIG. 4, but when the endoscope 11 is connected to the CCU 13. 4 may be executed.

  That is, when the endoscope 11 is connected to the CCU 13, a signal indicating that the endoscope 11 and the CCU 13 are connected is supplied from the CCU 13 to the air supply device 21 from the CCU 13. When the air supply device 21 detects that the endoscope 11 is connected to the air supply device 21, the air supply device 21 performs a pretest for measuring time by S4 and S6 after a predetermined time has elapsed.

As described above, the pretest may be executed in conjunction with the connection of the endoscope 11 to the CCU 13.
(Modification 3)
In the above-described embodiment, an endoscope that can be used with respect to a treatment instrument for use in a predetermined treatment, and when the endoscope is not usable, an available endoscope is notified. However, the air supply device 21 according to the present modification is an endoscope that can be used for each of the plurality of treatment tools, and when the endoscope is not usable, the usable endoscope is determined. And announce.

  That is, table data as shown in FIG. 6 is prepared in advance for each treatment instrument and stored in the memory 58b. Further, various threshold values for each treatment tool are also stored in the memory 58b. A nurse who is a user inputs and sets information on a treatment tool to be used to the air supply device 21.

  FIG. 8 is a front view of the operation panel of the air supply device 21 according to the third modification. After pressing the pretest switch 43 or before pressing, the display unit 44 displays a treatment tool selection unit 49 for selecting a treatment tool. The treatment instrument selection unit 49 displays a list of a plurality of treatment instruments. The user can select a treatment tool name to be pretested from the list by touching it.

  The control unit 58 selects and reads out the threshold value and table data corresponding to the selected treatment tool from the memory 58b. When a treatment tool is selected by the treatment tool selection unit 49, a message display unit 47 is displayed instead of the treatment tool selection unit 49.

  The control unit 58 determines the pressure based on the selected threshold value (S2, S5), and selects and displays a message to be displayed on the message display unit 47 from the selected table data (S7).

  That is, the insufflation device 21 selects table data for each of the treatment tool selection unit 49 for selecting one treatment tool from the plurality of treatment tools and the plurality of treatment tools selected by the treatment tool selection unit 49. Have multiple. The message display unit 47, which is an information output unit, refers to the table data corresponding to one treatment tool selected by the treatment tool selection unit 49, and is used by the endoscope based on the measured time MT. Information on whether or not it is possible and information on other endoscopes that can be used when the endoscope is not usable are read and output.

  As described above, according to the embodiment and each modification described above, it is determined whether or not air can be appropriately supplied into the lumen while the treatment instrument is inserted into the treatment instrument insertion channel. It is possible to provide an air supply device and an air supply system capable of performing the above.

  The present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Endoscope system, 2 Air supply system, 3 Treatment system, 4 System controller, 5 Monitor, 6 Centralized display panel, 7 Cart, 8 Patient, 9 Operating table, 11 Endoscope, 12 Light source device, 14 Insertion part, DESCRIPTION OF SYMBOLS 15 Operation part, 15a Air supply / water supply switch, 15b Suction switch, 15c Curved operation knob, 16 Universal cord, 16a Light source connector, 16b connector, 17 Electrical cable, 18 Treatment tool insertion port, 19 Treatment tool insertion channel, 21 Air supply Device, 21A air supply tube connector, 21B cylinder connector, 21C air supply line, 22 carbon dioxide gas cylinder, 23 adapter, 23a tube connecting part, 24 air supply tube, 25 high pressure gas tube, 31 treatment tool, 32 electric knife device , 33 cable, 41 power switch, 42 air supply 43, pre-test switch, 44 display unit, 45a, 45b, 45c status display lamp, 46 pressure display unit, 47 message display unit, 48 gas remaining amount display unit, 49 treatment instrument selection unit, 51 supply pressure sensor, 52 pressure reduction , 53 electropneumatic proportional valve, 54 solenoid valve, 55 pressure sensor, 56 flow sensor, 57 relief valve, 58 control unit, 58b memory, 58c timer, 98 control unit, 100 surgical system.

Claims (9)

A first connecting portion to which a tube connected to the opening of the treatment instrument insertion channel of the endoscope is connected;
A second connection to which the air supply source is connected;
An air supply line provided between the first connection portion and the second connection portion;
After the treatment instrument is inserted into the treatment instrument insertion channel, after supplying air to the tube via the supply line, the pressure in the supply line becomes a predetermined value from the stop of the supply. A time measuring unit for measuring the time until
Based on the time measured by the time measuring unit, first information indicating whether or not the endoscope can be used in combination with the treatment instrument; and If not usable in combination, an information output unit for outputting second information about the usable endoscope;
An air supply device comprising:   The air supply device according to claim 1, wherein the information output unit is a message display unit that displays the first information and the second information by a message. Having a predetermined operation device,
The air supply device according to claim 1, wherein the time measuring unit measures the time when the predetermined operation device is operated. An air supply instruction operating device for instructing air supply from the distal end of the insertion portion of the endoscope into the subject;
The said time measurement part measures the said time before the air supply in the said subject, if the said air supply instruction | indication operating device is operated, The transmission of Claim 1 or 2 characterized by the above-mentioned. Qi device.   The air supply device according to claim 1 or 2, wherein the time measuring unit measures the time when detecting that the endoscope is connected to the air supply device. Table data for storing the first and second information according to the measured time;
6. The information output unit according to claim 1, wherein the information output unit reads out and outputs the first and second information with reference to the table data based on the measured time. Air supply device described in one. A treatment instrument selection section for selecting one treatment instrument from a plurality of treatment instruments;
For each of the plurality of treatment tools selected in the treatment tool selection unit, a plurality of the table data,
The information output unit refers to the table data corresponding to the one treatment tool selected by the treatment tool selection unit and outputs the first and second information based on the measured time. The air supply device according to claim 6, wherein the air supply device reads and outputs. A pipeline opening / closing section provided on the air supply pipeline;
A pressure sensor for detecting the pressure in the air supply conduit;
Have
By controlling the pipe opening and closing unit, the air supply to the tube through the air supply pipe line,
The air supply device according to any one of claims 1 to 7, wherein the pressure in the air supply pipe line is detected by the pressure sensor. An air supply device according to any one of claims 1 to 8,
The endoscope;
The tube;
An air supply system characterized by comprising:

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