JP4827462B2 - Endoscopic device with pump - Google Patents

Description

  The present invention relates to an endoscope apparatus including an air supply / water supply pump, and more particularly, to an operation process of the endoscope apparatus when a pump jig is used.

  A videoscope having an image sensor or a fiberscope having an image guide is provided with an air supply / water supply channel for discharging water or air from the distal end of the scope, and each channel is a processor to which the videoscope is connected. Or it connects to the tank with which the light source device was equipped. The processor or the light source device is provided with a pump, and by operating the pump, compressed air or water in the tank can be supplied and discharged from the distal end of the scope via the water supply channel (see Patent Document 1). ).

In the inspection work of the air supply and water supply operation processing of the endoscope apparatus, a test work using a pump jig is performed to check the normal operation of the pump. The pump jig is a controller that can output a control signal for driving the pump, and the pump is operated by operating the pump jig.
JP-A-8-106052

  When connecting the pump jig to the endoscope device, it is necessary to connect the signal line to the system controller such as an IC chip provided in the endoscope device, and it is necessary to remove the housing of the endoscope device It is in. Therefore, the operation check of the endoscope apparatus cannot be performed quickly.

  The endoscope apparatus of the present invention is, for example, a processor or a light source apparatus to which a video scope is connected, and a connection provided in a housing for connecting a pump, pump driving means for driving the pump, and a pump jig. And a control means for controlling the pump drive means based on data sent from the pump jig. When the pump jig is connected to the connection portion, the pump can be operated by data sent from the pump jig. The connecting portion may also serve as a connecting portion with a peripheral device used for endoscopic work.

  The pump may be operated directly from the pump jig based on the PWM signal regardless of communication data such as serial data. For example, the control means detects whether the format of data sent from the pump jig is either the communication data format or the PWM signal format, the drive signal based on the PWM signal, and the communication data Switching means for selectively switching the drive signal based on the above and sending it to the pump, and the control means controls the switching circuit to send the drive signal according to the format of the data sent from the pump jig to the pump. do it.

  According to the present invention, work using a pump jig can be performed efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram of an electronic endoscope apparatus according to this embodiment. FIG. 2 is a block diagram of the pump jig.

  The electronic endoscope apparatus includes a video scope 10 and a processor 20, and the video scope 10 is detachably connected to the processor 20. In addition, a monitor 60 is connected to the processor 20, and a pump jig 40 and a keyboard 50 can be connected.

  Illumination light emitted from a light source lamp (not shown) in the processor 20 is emitted from the scope tip through a light guide (not shown) in the video scope 10. Thereby, illumination light is irradiated to the observation site.

  The light reflected at the observation site passes through the objective lens (not shown) and reaches the CCD 16, and a subject image is formed on the light receiving surface of the CCD 16. The CCD 16 reads an image signal corresponding to the subject image and sends it to the initial signal circuit 12. In the initial signal processing circuit 12, an amplification process or the like is performed on the image signal, and the processed image signal is sent to the video signal processing circuit 22 of the processor 20.

  In the video signal processing circuit 22, various processes such as white balance processing and γ correction are performed on the image signal, and a video signal in accordance with a video standard such as an NTSC signal is generated. The video signal is output to the monitor 60, whereby the observation image is displayed on the monitor 60.

  The system control circuit 26 of the processor 20 controls the operation of the processor 20 and outputs a control signal to each circuit in the processor. The video scope 10 is provided with a scope control unit 14, and data is communicated between the scope control unit 14 and the system control circuit 26.

  The processor 20 is provided with a pump 32 and communicates with a tank 34 provided on the side of the processor. The tank 34 communicates with the air supply / water supply channel 18 in the video scope 10 through the connection tube 35, and the tank 34 stores cleaning water. When a pump button provided on the front panel 38 is operated, the pump 32 is activated, and compressed air or cleaning water in the tank 34 is sent to the air supply / water supply channel 18 by the operation of the pump 32. As a result, air or cleaning water is discharged from the distal end of the scope via the air / water supply channel 18.

  The housing 20A of the processor 20 is provided with a connector 36 to which a keyboard 50 and a pump jig 40 can be connected. Signals from the keyboard 50 and the pump jig 40 are sent to the system control circuit 26 via the connector 36. It is done. The connector 36 is configured according to communication data in the RSC232 format. In the processor 20, a PWM control circuit 24, a voltage conversion circuit 28, and a switching circuit 30 are provided for operating the pump 32. The PWM control circuit 24 sends a drive voltage to the pump 32 based on the PWM signal. The voltage conversion circuit 28 sends a drive voltage to the pump 32 based on a control signal from the system control circuit 26. The switching circuit 30 switches between the drive voltage from the PWM control circuit 24 and the drive voltage from the voltage conversion circuit 28 and sends it to the pump 32.

  The pump jig 40 is a device for inspecting and confirming the operation of the pump 32, and is used at the time of inspection or the like. As shown in FIG. 2, the pump jig 40 includes a controller 42, and the pump jig 40 is provided with a first button 43, a second button 44, a third button 45, and a communication mode setting button 46. Yes. The first button 43 is a button for increasing the flow rate by the pump 32, the second button 44 is a button for decreasing the flow rate by the pump 32, and the third button 45 is a button for turning the pump 32 ON / OFF. The communication mode setting button 46 is a button for setting the communication mode to either serial data or PWM data, and the pump jig 40 uses the control signal for operating the pump 32 as serial data as the system control circuit 26 of the processor 20. It is also possible to send the PWM signal directly to the PWM control circuit 24 of the processor 20.

  The system control circuit 26 controls the switching circuit 30 based on communication data sent from the pump jig 40 via the connector 36. When the PWM signal is sent from the pump jig 40 for the operation of the pump 32, the switching circuit 30 is controlled so that the drive voltage from the PWM control circuit 24 is sent to the pump 32. On the other hand, when the serial data is sent from the pump jig 40 for the operation of the pump 32, the switching circuit 30 is controlled so that the drive voltage from the voltage conversion circuit 28 is sent to the pump 32.

  FIG. 3 is a flowchart showing an operation process of the pump jig 40.

  In step S101, it is determined whether or not the third button 45 has been operated. That is, it is determined whether an ON operation for operating the pump 32 has been performed. If it is determined that the third button 45 is not operated, step S101 is repeatedly executed. If it is determined that the third button 45 has been operated, the process proceeds to step S102.

  In step S102, it is determined whether or not serial communication data is selected as a signal for operating the pump 32. If it is determined that the serial communication data is selected, the process proceeds to step S103. In the serial communication mode, a password is set so that the operator does not directly operate the system control circuit 26. In step S103, it is determined whether the password is OK. If it is determined that the password is OK, the process proceeds to step S104. Note that processing such as password setting is performed by the controller 42 in accordance with an operation of a predetermined operation unit (not shown) of the pump jig 40.

  In step S104, serial data for operating the pump 32 is transmitted to the processor 20, and data notifying that the serial communication method is set is transmitted to the processor 20. In step S105, it is determined whether or not the first button 43 has been pressed. If it is determined that the first button 43 has been pressed, the process proceeds to step S106, and data is sent to the processor 20 so that the pump flow rate is increased by a predetermined amount. When step S106 is executed, the process proceeds to step S107. On the other hand, if it is determined that the first button 43 has not been pressed, the process skips to step S107.

  In step S107, it is determined whether or not the second button 44 has been pressed. If it is determined that the second button 44 has been pressed, the process proceeds to step S108, and data is sent to the processor 20 so that the pump flow rate is decreased by a predetermined amount. When step S108 is executed, the process proceeds to step S109. On the other hand, if it is determined that the second button 44 has not been pressed, the process skips to step S109.

  In step S109, it is determined whether or not the third button 45 has been operated to turn off the pump 32. If it is determined that the third button 45 has not been operated, the process returns to step S105. On the other hand, if it is determined that the third button 45 has been operated, the process proceeds to step S110, and serial data for turning off the pump 32 is transmitted to the processor 20. When step S110 is executed, the process returns to step S101.

  On the other hand, if the serial communication data is not selected in step S102, or if it is determined in step S103 that the password is not OK, the process proceeds to step S111. In step S111, a PWM signal for operating the pump 32 is transmitted to the processor 20, and data notifying that the PWM method is set is transmitted to the processor 20. In step S112, it is determined whether or not the first button 43 has been pressed. If it is determined that the first button 43 has been pressed, the process proceeds to step S113, and data is sent to the processor 20 so that the pump flow rate is increased by a predetermined amount. When step S113 is executed, the process proceeds to step S114. On the other hand, if it is determined that the first button 43 has not been pressed, the process skips to step S114.

  In step S114, it is determined whether the second button 44 has been pressed. If it is determined that the second button 44 has been pressed, the process proceeds to step S115, and data is sent to the processor 20 so that the pump flow rate is decreased by a predetermined amount. When step S115 is executed, the process proceeds to step S116. On the other hand, if it is determined that the second button 44 has not been pressed, the process skips to step S116.

  In step S116, it is determined whether or not the third button 45 has been operated to turn off the pump 32. If it is determined that the third button 45 has not been operated, the process returns to step S112. On the other hand, if it is determined that the third button 45 has been operated, the process proceeds to step S117, and a PWM signal for turning off the pump 32 is transmitted to the processor 20. When step S117 is executed, the process returns to step S101.

  FIG. 4 is a flowchart showing the operation process of the processor 20.

  In step S <b> 201, it is determined whether either the keyboard 50 or the pump jig 40 is connected to the connector 36. If it is determined that neither the keyboard 50 nor the pump jig 40 is connected to the connector 36, step S201 is repeatedly executed. On the other hand, if it is determined that either the keyboard 50 or the pump jig 40 is connected to the connector 36, the process proceeds to step S202. In step S202, it is determined whether or not the pump jig 40 is connected.

  In step S202, when it is determined that the pump jig 40 is not connected and the keyboard 50 is connected, the process proceeds to step S208, and processing relating to the keyboard 50 is executed. In step S209, it is determined whether or not the keyboard 50 is connected without being removed. If it is determined that the keyboard 50 has not been removed and is connected, the process returns to step S208. On the other hand, if it is determined that the keyboard 50 has been removed, the process returns to step S201.

  On the other hand, if it is determined in step S202 that the pump jig 40 is connected, the process proceeds to step S203, where it is determined whether the data communication method is serial communication data.

  If it is determined in step S203 that the data is serial communication data, the process proceeds to step S206. In step S206, a control signal for driving the pump 32 is sent to the voltage conversion circuit 28, and the switching circuit 30 is controlled so that the drive voltage from the voltage conversion circuit 28 is sent to the pump 32. In step S207, it is determined whether or not the pump jig 40 is connected. If it is determined that the pump jig 40 is connected, the process returns to step S206. If it is determined that the pump jig 40 is not connected, the process returns to step S201.

  On the other hand, if it is determined in step S203 that the data format is a PWM signal, the process proceeds to step S204. In step S204, a control signal is output so as to drive the PWM control circuit 24, and the switching circuit 30 is controlled so that the drive voltage from the PWM control circuit 24 is sent to the pump 32. In step S205, it is determined whether or not the pump jig 40 is connected. If it is determined that the pump jig 40 is connected, the process returns to step S204, while if it is determined that the pump jig 40 is not connected, the process returns to step S201.

  As described above, according to the present embodiment, the connector 20 to which the pump jig 40 is connected together with peripheral devices such as the keyboard 50 is provided on the housing 20A of the processor 20. A PWM control circuit 24, a voltage conversion circuit 28, and a switching circuit 30 are provided in the processor 20, and the pump 32 operates based on the PWM signal or serial communication data.

  A light source device to which a fiberscope is connected may be applied instead of the processor of the electronic endoscope device. Further, data communication with the pump jig may be performed in other communication data formats.

It is a block diagram of the electronic endoscope apparatus which is this embodiment. It is a block diagram of a pump jig. It is the flowchart which showed the operation process of the pump jig. It is the flowchart which showed the operation processing of the processor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Videoscope 20 Processor 24 PWM control circuit 26 System control circuit 28 Voltage conversion circuit 30 Switching circuit 32 Pump 36 Connector 40 Pump jig

Claims (3)

A pump,
Pump driving means for driving the pump;
A connection provided on the housing for connecting the pump jig;
Control means for controlling the pump drive means based on data sent from the pump jig via the connection portion,
The control means is
Data format detection means for detecting whether the format of data sent from the pump jig is either a communication data format or a PWM signal format;
A switching means for selectively switching between a drive signal based on the PWM signal and a drive signal based on the communication data and sending it to the pump;
The endoscope apparatus, wherein the control means controls the switching circuit so that a drive signal corresponding to a format of data sent from the pump jig is sent to the pump.   The endoscope apparatus according to claim 1, wherein the pump jig includes a button operated to drive the pump.   The endoscope apparatus according to claim 1, wherein the connection portion also serves as a connection portion with a peripheral device used for endoscopic work.

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