JP2010075625A - Medical apparatus for dental use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical apparatus for dental use, which can suppress the influence of an abnormality in using a treatment implement on the side of a unit which is arranged at the proximal end of a hand piece and supplies or discharges water, air or the like. <P>SOLUTION: The three-way electromagnetic valves 104aC, 104bC, 104cC of the medical apparatus 200 for dental use, in an initial state, open the first air tube 104aA, 104bA, and the first cooling water tube 104cA, and also block the second air tube 104aB, 104bB, and the second cooling water tube 104cB. When the detected flow rate or pressure of a fluid is not within a normal range, a self diagnosis substrate 140 blocks the first air tube 104aA, 104bA, and the first cooling water tube 104cA, and also opens the second air tube 104aB, 104bB, and the second cooling water tube 104cB. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dental medical device.

  In a dental clinic, various dental medical devices are provided as equipment used for treatment and diagnosis of patients in a clinic. These dental medical devices are regularly maintained (maintenance, maintenance), for example. Also, if a dental medical device does not operate normally due to an abnormality or failure for some reason, a doctor's doctor, assistant, staff, etc., for example, can provide customer service via the Internet or telephone line. Request maintenance from the center. A customer service engineer who visits the dental clinic reported by the customer service center conducts inspections, repairs, and parts replacement.

  Conventionally, electronic devices and precision devices having a self-diagnosis function are known in various fields as well as dental medical devices (see, for example, Patent Document 1).

  The technology described in Patent Document 1 requires advanced advanced functions to be incorporated into dental chair units, requires advanced maintenance technology, and improves the quality of maintenance uniformly by diversifying models and widening the installation range. It aims to provide a remote maintenance system that solves these problems, with the objectives of making the system, shortening repair time, improving reliability, reducing maintenance costs, and establishing an efficient maintenance system using a maintenance database.

Also, in a dental medical device, in order to disinfect a fluid circuit, a technique is known in which an on-off valve is provided in the fluid circuit and the flow of the disinfecting liquid is changed by opening and closing the on-off valve (for example, a patent) References 2-4).
JP 2002-95709 A JP 2003-169815 A JP 2000-5200 A Japanese Patent Publication No. 4-50823

  However, although the technology described in Patent Document 1 relates to maintenance of general equipment of medical equipment used for dentistry and other patients, a treatment instrument that comes into contact with the patient's teeth for treatment of the patient's teeth. It does not relate to maintenance techniques for avoiding unforeseen risks to the patient when using. Moreover, the techniques described in Patent Documents 2 to 4 relate to disinfection and sterilization in the device, and do not relate to maintenance techniques when using the treatment instrument. In dentistry, for example, a doctor holds a treatment instrument that rotates at high speed or vibrates, or a handpiece that outputs laser, and treats teeth, so water, air, There is a demand for further improvement in maintenance technology when using a treatment instrument of a dental medical device on the unit side that supplies electric power and discharges water and air.

  Therefore, the present invention solves the above-described problems and suppresses the influence of abnormality during use of the treatment instrument on the unit side that is provided on the proximal end side of the handpiece and supplies or discharges water, air, or the like. It is an object to provide a possible dental medical device.

  In order to solve the above problems, a dental medical device of the present invention is a fluid circuit in which a fluid supplied from a fluid supply source to a treatment instrument used to treat a patient's teeth and / or a fluid discharged from the treatment instrument flows. The fluid circuit unit includes a first fluid circuit, a second fluid circuit provided in parallel with the first fluid circuit, the fluid supply source, and the first fluid circuit. One fluid circuit and the second fluid circuit, and shuts off one of the first fluid circuit and the second fluid circuit, and the first fluid circuit and the second fluid circuit. Switching means for opening the other of the fluid circuits, and further comprising switching control means for controlling the switching means, so that the first fluid circuit monitors an abnormality of the first fluid circuit. Predetermined monitoring of the first fluid circuit; Provided with a fluid circuit sensor means for detecting the flow rate or pressure of the fluid flowing through the monitoring position, and the switching means opens the first fluid circuit as an initial state and the second fluid circuit. And the switching control means shuts off the first fluid circuit and the second fluid circuit when the flow rate or pressure of the fluid detected at the monitoring position is not within a normal range. The switching means is controlled so as to open.

  According to such a configuration, the dental medical device can continue the operation using the second fluid circuit when the first fluid circuit is abnormal. Can be suppressed.

  In addition, the dental medical device includes an adjustment electromagnetic valve that adjusts the flow rate or pressure of the fluid flowing through the monitoring position provided in the vicinity of the monitoring position of the first fluid circuit, and is detected at the monitoring position. Fluid circuit state discriminating means for discriminating whether or not the flow rate or pressure of the fluid is within a normal range defined by the specifications of the fluid circuit, and the fluid flow rate or pressure detected at the monitoring position is normal Fluid circuit state repairing means for controlling an adjustment solenoid valve that adjusts the flow rate or pressure of the fluid flowing through the monitoring position so as to be within the normal range when not within the range of When the fluid flow state or the detected fluid flow rate or pressure does not fall within the normal range after the adjustment of the adjustment solenoid valve by the fluid circuit state repairing means, the fluid circuit state determination means The non-repairable information indicating that the abnormality in the non-recoverable is unrecoverable is output, and the switching control means shuts off the first fluid circuit based on the output unrepairable information and the second It is desirable to control the switching means so as to open the fluid circuit.

  Further, in the dental medical device, the fluid circuit state determining means is detected by the fluid circuit sensor means provided at the monitoring position after the adjustment electromagnetic valve is controlled by the fluid circuit state repairing means. Until the flow rate or pressure of the fluid falls within the normal range, the determination as to whether or not it is normal is repeated for a predetermined period, and the detected flow rate or pressure of the fluid does not fall within the normal range. When it is determined whether or not it is normal for the specified period, it is desirable to output unrepairable information indicating that the abnormality at the monitoring position cannot be repaired.

  Further, in the dental medical device, the second fluid circuit is provided at a predetermined monitoring position of the second fluid circuit to monitor the abnormality of the second fluid circuit, and the monitoring position is set. It is desirable to include fluid circuit sensor means for detecting the flow rate or pressure of the flowing fluid, and an adjusting solenoid valve for adjusting the flow rate or pressure of the fluid flowing in the vicinity of the monitoring position.

  Further, in order to solve the above-mentioned problems, the dental medical device of the present invention is configured by jetting fluid to a treatment instrument, irradiating a patient with laser light, or irradiating X-rays for treatment or diagnosis of a patient's teeth. A dental medical device that outputs fluid, laser light, or X-rays, and monitors abnormalities in voltage output from a power supply unit that supplies power to each electrical circuit in the dental medical device. First voltage detection means for detecting a voltage value of a predetermined voltage output terminal of the power supply unit, and provided in parallel with the first voltage detection means, power is supplied to each electric circuit in the dental medical device. A second voltage detecting means for detecting a predetermined voltage output terminal of the power supply unit in order to monitor an abnormality in the voltage output from the power supply unit, The voltage output terminal; Provided between the first voltage detection means and the second voltage detection means, and electrically disconnects one of the first voltage detection means and the second voltage detection means, and A switching means for electrically connecting the other of the one voltage detection means and the second voltage detection means, and a switching control means for controlling the switching means, wherein the switching means has the voltage as the initial state. The first voltage detection means is electrically connected to the output terminal and the second voltage detection means is electrically disconnected. The switching control means is controlled by the first voltage detection means. When the detected voltage value is not within a normal range, the first voltage detection unit is electrically disconnected and the second voltage detection unit is electrically connected to the voltage output terminal. To control the switching means Characterized in that it.

  According to such a configuration, the dental medical device can continue the operation using the second voltage detection means when the first voltage detection means is abnormal, and therefore, the abnormality is caused by an abnormality during use of the treatment instrument. The influence can be suppressed.

  In addition, the dental medical device includes a voltage state determination unit that determines whether or not the voltage value detected at the voltage output terminal is within a normal range defined by the specification of the power supply unit, and the voltage output terminal. Voltage state restoration means for adjusting the voltage at the voltage output terminal so that the voltage value at the voltage output terminal is within the normal range when the detected voltage value is not within the normal range; The voltage state discriminating means has a voltage range detected by the first voltage detecting means at the voltage output terminal after the voltage of the voltage output terminal is adjusted by the voltage state restoring means. If it is not within the range, it outputs unrepairable information indicating that the abnormality in the voltage at the voltage output terminal is unrepairable, and the switching control means outputs the unrepairable output Based on the information, it is desirable to control the switching means so as to electrically connect said second voltage detecting means while electrically disconnected the first voltage detecting means.

  In the dental medical device, the voltage state determination unit detects the voltage value of the voltage output terminal after the voltage state of the voltage output terminal is adjusted by the voltage state repair unit. Until the voltage value detected by the means is within the normal range, it is repeatedly determined whether the voltage value is normal for a predetermined period, and the voltage value detected at the voltage output terminal does not fall within the normal range. When it is determined whether or not it is normal for the predetermined period, it is desirable to output non-repairable information indicating that an abnormality in the voltage at the voltage output terminal cannot be repaired.

  Further, it is desirable that the dental medical device further includes notifying means for notifying that by a warning display and / or a warning sound when the voltage value detected at the voltage output terminal is not within the normal range. .

  According to the present invention, since the dental medical device can continue the operation without using the site where the abnormality has occurred, it is possible to suppress the influence of the abnormality and perform more comfortable treatment or diagnosis. .

  The best mode for carrying out a dental medical device of the present invention (hereinafter referred to as “embodiment”) will be described in detail below with reference to the drawings.

[Outline of dental medical equipment]
FIG. 1 is a configuration diagram schematically showing an example of a dental medical device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an example of the appearance of the dental medical device shown in FIG. . As shown in FIG. 1, the dental medical device 100 includes an electric circuit unit 101 including a power supply circuit 120, an output control circuit 130, a self-diagnosis board 140, and a transmission circuit 150 as main components. . These units are accommodated in the apparatus main body 191 shown in FIG. In the dental medical device 100 illustrated in FIG. 2, a handpiece 131, which is a treatment instrument used for treating a patient's teeth, is attached to the tip of an articulated manipulator 132 connected to the upper part of the apparatus main body 191. . The apparatus main body 191 has a table 192 at the top, and the table 192 is provided with a control panel for operation and display. Further, a foot controller 194 for operating the operation of the dental medical device 100 with a foot and a moving caster 195 are provided on the bottom of the apparatus main body 191. For example, when the dental medical device 100 includes a laser device, it is possible to attach a needle tip to the tip of the handpiece 131 and irradiate a minute region with a laser.

  The power supply circuit 120 shown in FIG. 1 is for monitoring the secondary voltage of the voltage supplied from the commercial power supply to the power plug 102 and the transformer 103. For example, the AC / DC converter 121, the constant voltage A circuit (voltage detection means) 122 and a voltage state repair means 123 are provided. Details of the power supply circuit 120 will be described later.

The output control circuit 130 is a circuit that controls the output of the handpiece 131. For example, when the handpiece 131 is a laser device, a voltage is applied from the power supply circuit 120 and laser light output from the handpiece 131 is output. For example, in the case where the handpiece 131 is a cutting tool for cutting teeth, the cutting bar is rotated and the number of rotations is controlled.
The self-diagnosis board 140 monitors the voltage on the secondary side detected by the voltage detection means 122 and controls the voltage state restoration means 123 so that the detected voltage becomes a specified value. Details of the self-diagnosis board 140 will be described later.

  The transmission circuit (transmission means) 150 is, for example, a customer service center 910 that manages maintenance of the dental medical device 100 as an external predetermined destination via a communication network (Internet, public telephone line etc) NW. It is connected to a fixed terminal device 912 used by an operator 911 and a portable terminal device 922 used by a customer service engineer 921 who performs actual maintenance. The transmission circuit 150 transmits / receives predetermined information (information regarding the usage environment of the dental medical device 100, information indicating abnormality, version upgrade information) under the control of the self-diagnosis board 140. For example, a CPU, a memory, a communication It consists of an interface. Here, the information regarding the usage environment of the dental medical device 100 indicates, for example, the name of the device used, the serial number, the name of the clinic, and the like. The information indicating an abnormality indicates an error history, a current situation (during self-repair, self-repair is not possible, etc.), a failure location, the presence or absence of a serious abnormality, and the like. The self-diagnosis board 140 controls the transmission circuit 150 and notifies the customer service center 910 and the customer service engineer 921 via the communication network NW when the detected voltage is out of the specified range. The upgrade information is information for upgrading various software in the dental medical device 100.

  The dental medical device according to the embodiment of the present invention is not limited to the dental medical device 100 illustrated in FIGS. 1 and 2, and may be, for example, the unit device 200 shown in FIGS. 3 and 4. FIG. 3 is a perspective view showing an external appearance of another example of the dental medical device according to the embodiment of the present invention, and FIG. 4 is a configuration diagram schematically showing the dental medical device unit shown in FIG. is there. As shown in FIG. 3, the unit device 200 includes a base 210, a patient chair 220 provided on the base 210, a doctor table 230 provided on the right side of the patient sitting on the patient chair 220, A unit main body 240 provided on the left side of the patient and an assistant hanger 250 provided behind the unit main body 240 are provided. The unit device 200 includes a control panel and an instrument hanger 231 on a doctor table 230 used by a doctor. The assistant hanger 250 is provided with a vacuum and a syringe used by the assistant.

  Inside the base 210, the doctor table 230, the unit main body 240, and the assistant hanger 250, as shown in FIG. 4, a self-diagnosis board 140, a transmission circuit 150, a fluid circuit 104 including a water circuit, an air circuit, and the like. Are provided as main components. In addition, although illustration is abbreviate | omitted, the power supply part etc. which supply electric power to electric circuits, such as a solenoid valve, and each electric circuit in an apparatus are provided in the apparatus.

  The fluid circuit 104 includes, for example, a first air pipe (fluid pipe) 104aA and a second air pipe (fluid pipe) 104aB through which air or compressed air (hereinafter referred to as air) supplied to the handpiece 131 from an air pressure source flows. An air pipe 104a having a first air pipe (fluid pipe) 104bA and a second air pipe (fluid pipe) 104bB for exhausting air from the handpiece 131 side to the outside, a water pressure A cooling water pipe 104c including a first cooling water pipe (fluid pipe) 104cA and a second cooling water pipe (fluid pipe) 104cB through which water supplied from the source to the handpiece 131 flows. The first air pipe 104aA and the second air pipe 104aB, the first air pipe 104bA and the second air pipe 104bB, and the first cooling water pipe 104cA and the second cooling water pipe 104cB are provided in parallel, respectively. . Three-way solenoid valves 104aC, 104bC, and 104cC are provided upstream of these branches, respectively. These three-way solenoid valves 104aC, 104bC, and 104cC function as check valves when the power is off. In addition, the handpiece 131 is comprised from the air turbine handpiece which rotates at high speed, for example.

  The first air pipe 104aA, the second air pipe 104aB, the first air pipe 104bA, the second air pipe 104bB, the first cooling water pipe 104cA, and the second cooling water pipe 104cB include valves 105aA, 105aB, and 105bA. , 105bB, 105cA, and 105cB are provided, and the flow rate can be set to a predetermined value using these.

  The first cooling water pipe 104cA and the second cooling water pipe 104cB are provided with water self-repairing portions 91 (91A, 91B), respectively. The water self-restoring portions 91A and 91B include a flow rate sensor (fluid circuit sensor means) and a flow rate control valve (adjustment electromagnetic valve). The flow rate sensor is provided at a predetermined monitoring position of the cooling water pipe 104c in order to monitor abnormality, and detects the flow rate of water flowing through the monitoring position. The flow rate control valve is provided near the monitoring position and adjusts the flow rate of water flowing through the monitoring position. The self-diagnosis board 140 monitors the detection values of the flow sensors of the water self-restoring units 91A and 91B, and when the detected value deviates from the set predetermined value, Control the control valve.

  In the present embodiment, the flow rate is controlled by setting the control capability of the flow control valve to about 50% of the normal value and adjusting the control capability to 25% or 80%. The flow rate control method is not limited to this, and the following method can also be used. In this case, a plurality of flow rate control valves that are used with a control capability of 100% are prepared in parallel at a predetermined installation location. These flow control valves have different control ranges, and the flow control valve is selected based on the judgment of the self-diagnosis board 140 according to the scale of the failure, and passes through the circuit using the determined flow control valve. To repair the flow rate.

  Similarly, the first air pipe 104aA, the second air pipe 104aB, the first air pipe 104bA, and the second air pipe 104bB include an air self-repair portion (flow sensor, flow control valve) 92 (92A, 92B) is provided. The self-diagnosis board 140 monitors the detection values of the flow rate sensors of the air self-repairing units 92A and 92B, and when the detected value deviates from the set predetermined value, Control the control valve.

  The fluid circuit 104 shown in FIG. 4 is an example, and the water flowing through the fluid circuit 104 is not supplied only for an air turbine, a micromotor, or the like that cuts teeth. For example, the water warmed by the warmer may be supplied from the cup water supply nozzle 243 of the unit main body 240 shown in FIG. Also included is a water circuit for spraying water or spraying from the syringe (handpiece 131) for cleaning the patient's teeth. Further, the water circuit includes a drain pipe for draining water flowing from the spit-n bowl 242. Such a water circuit can also be provided with a self-repairing portion 91 for water.

  Similarly, the air circuit does not supply air only for rotating the air turbine or cooling the handpiece 131, the micromotor, etc., but water used for cooling the air turbine that cuts teeth. Air can also be supplied to form a spray. The air circuit can also supply warm air that is warmed by a warmer and then sprayed from the syringe (handpiece 131) for drying after cleaning of the patient's teeth. Such an air circuit can also be provided with an air self-repairing portion 92.

[Detailed configuration of dental medical device]
Hereinafter, the self-diagnosis board 140 included in the dental medical device according to the embodiment of the present invention and the self-repair function will be described in detail with reference to FIG. FIG. 5 is a block diagram schematically showing the overall configuration of the dental medical device according to the embodiment of the present invention. Here, as the best mode of the dental medical device according to the embodiment of the present invention, the dental medical device shown in FIG. 1 and FIG. 2 is an apparatus provided with the configuration of the unit device shown in FIG. 3 and FIG. explain.

  As shown in FIG. 5, the dental medical device 100A includes a fluid circuit 110, a power supply circuit 120A, an output control circuit 130, a self-diagnosis board 140A, a transmission circuit 150, an operation unit 160, a notification unit 170, It has.

  The fluid circuit 110 includes a fluid circuit sensor means 111, an adjustment electromagnetic valve 112, a valve 113, and a three-way electromagnetic valve 114 as main components. Note that the fluid circuit 110 can include not only a water circuit and an air circuit, but also a circuit of cooling air (assist gas) accompanying laser irradiation when the dental medical device 100A includes a laser device, for example. .

  The fluid circuit sensor means 111 is provided at a predetermined monitoring position of the fluid circuit 110 in order to monitor the abnormality of the fluid circuit 110, and is a flow sensor that detects the flow rate of fluid such as water and air flowing through the monitoring position. It is a generic name. The fluid circuit sensor means 111 sends a signal obtained by converting the detected flow rate value into a voltage to the self-diagnosis board 140A. The monitoring position refers to a position for monitoring the flow rate of the fluid flowing through the position.

  The adjusting solenoid valve 112 is a general term for a flow rate control valve that is provided at a monitoring position and adjusts the flow rate of a fluid such as water or air flowing through the monitoring position. The valve 113 is a collective term for what is provided in the fluid circuit 110 and is configured so that the flow rate can be set to a predetermined value using the valve 113. For example, a cock, a check valve, It is also called a shuttle valve, a pressure reducing valve, a signal valve, a control valve, or a branch valve. Here, the valve 113 is not limited to a solenoid valve, and may be a manual valve. In the present embodiment, in the water circuit, the fluid circuit sensor means 111 and the adjustment electromagnetic valve 112 constitute a water self-restoring portion 91 (see FIG. 4). In the air circuit, the fluid circuit sensor means 111 and the adjusting solenoid valve 112 constitute an air self-repair portion 92 (see FIG. 4).

  The power supply circuit (power supply unit) 120A supplies power to each electric circuit 180 in the dental medical device 100A. The power supply circuit (power supply unit) 120A includes an AC / DC conversion unit 121 and voltage detection units 122a, 122b, 122c, 122d, and 122e. And voltage state repairing means 123a, 123b, 123c, 123d, and 123e as these self-healing circuits. Each electric circuit 180 is an electric circuit excluding the power supply circuit 120A in the dental medical device 100A (fluid circuit 110, output control circuit 130, self-diagnosis board 140A, transmission circuit 150, operation unit 160, notification unit 170). It is a general term.

  The AC / DC converter 121 converts alternating current (AC) supplied from a commercial power source to the power plug 102 and the transformer 103 into direct current (DC). In the present embodiment, as an example, the AC / DC converter 121 outputs a DC voltage to each of the voltage output terminals of + 5V, + 12V, + 24V, + 28V, and + 30V in the case of a dental laser device.

  The voltage detection circuits (voltage detection means) 122a, 122b, 122c, 122d, and 122e are + 5V, + 12V, and + 12V of the power supply circuit 120A in order to monitor an abnormality regarding the voltage (secondary DC voltage) output from the power supply circuit 120A. The voltage output terminals of + 24V, + 28V, and + 30V are connected to the self-diagnosis board 140A. These voltage detection circuits 122a to 122e detect voltage values of the connected voltage output terminals. The voltage detection circuits 122a to 122e are composed of, for example, a constant voltage circuit or a comparator (op amp). Here, the constant voltage circuit indicates a constant voltage circuit (feedback type constant voltage circuit) that performs feedback control.

  The voltage state repair circuits (voltage state repair means) 123a, 123b, 123c, 123d, and 123e are connected to the voltage detection circuits 122a to 122e and to the self-diagnosis board 140A. The voltage state repair circuits 123a to 123e are controlled by the self-diagnostic board 140A when the voltage values detected at the voltage output terminals of + 5V, + 12V, + 24V, + 28V, and + 30V are not within the normal range. The voltage at each voltage output terminal is adjusted so that the voltage value at the output terminal is within a normal range. The voltage state restoration circuits 123a to 123e are constituted by, for example, a power supply IC, a shunt regulator IC, a transistor, and the like. Here, the shunt regulator is an error amplifier with a built-in reference voltage, and operates so that the REF terminal voltage (reference voltage) becomes equal to the built-in VREF voltage (feedback voltage). Therefore, when the shunt regulator IC is used, a control signal (corrected voltage value) from the self-diagnosis board 140A is output to the REF terminal.

  Although not shown, the output control circuit 130 includes, for example, an oscillator that oscillates laser light when the user operates the operation unit 160 when the dental medical device 100A includes a laser device, and laser light. And a light emitting part for emitting light to the handpiece 131. Here, the laser is preferable because a carbon dioxide laser that oscillates light having a wavelength of 10.6 μm does not penetrate deep into soft tissue because it is easily absorbed by water.

  For example, the self-diagnosis board 140A is configured by a dedicated board having an arithmetic device such as a CPU (Central Processing Unit) and a memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory). As shown in FIG. 5, the self-diagnosis board 140A includes a fluid circuit state determination unit 141, a fluid circuit state repair unit 142, a fluid circuit function stop unit 143, a communication control unit 144, and a voltage state determination unit 145. , Voltage output function stop means 146, loop back test monitoring means 147, and three-way solenoid valve control means 148. On the self-diagnosis board 140A, A / D conversion (Analog to Digital conversion) or D / A conversion (Digital to Analog converter) is possible in signal input / output with other electric circuits as required. It has become.

  The fluid circuit state discriminating means 141 is within a normal range (normal) in which the flow rate of fluid such as water or air detected by the fluid circuit sensor means 111 at the monitoring position of the fluid circuit 110 is defined by the specifications of the fluid circuit 110. It is determined whether or not there is. The determination result is output to the fluid circuit state repair unit 142.

  The fluid circuit state repair unit 142 determines that the fluid circuit state determination unit 141 is within the normal range when the flow rate of the fluid such as water or air detected at the monitoring position of the fluid circuit 110 is not within the normal range. Thus, the adjustment electromagnetic valve 112 for adjusting the flow rate of the fluid flowing through the monitoring position is controlled.

  Further, in this embodiment, after the adjustment solenoid valve 112 is controlled by the fluid circuit state repairing unit 142, the fluid circuit state determining unit 141 is detected by the fluid circuit sensor unit 111 provided at the monitoring position. Until the flow rate of the fluid such as water or air falls within the normal range, the determination as to whether or not it is normal is repeated for a predetermined period. This period may be determined by time, or may be determined by the number of determinations within that period. In the present embodiment, for example, the determination of whether or not normal is repeated five times. The timing for repeating the determination is determined by, for example, a predetermined multiple of the clock (for example, 10 seconds). In the present embodiment, the fluid circuit state determination unit 141 thereby further determines whether the abnormality at the monitoring position is a predetermined abnormality level level. That is, when it is determined whether or not it is normal for a predetermined number of times, the abnormality level is high, and when the number of determinations is less than the predetermined number of times, the abnormality level is low.

  In addition, the fluid circuit state discriminating unit 141 detects the flow rate or pressure of the fluid detected by the fluid circuit sensor unit 111 provided at the monitoring position after the adjustment electromagnetic valve 112 is controlled by the fluid circuit state restoring unit 142. Until the value falls within the normal range, the determination as to whether or not it is normal is repeated for a predetermined period, and the detected flow rate or pressure of the fluid does not fall within the normal range and is normal only for the predetermined period. When the determination is made, whether or not the abnormality at the monitoring position cannot be repaired is output to the three-way solenoid valve control means 148.

  When the fluid circuit state determining unit 141 determines that the abnormal level of the monitoring position is high, the fluid circuit function stopping unit 143 passes through the section of the fluid circuit 110 through which fluid such as water or air flowing through the monitoring position passes. The function of a device such as an electromagnetic valve provided in advance is stopped. In the present embodiment, the fluid circuit function stop means 143 is for prohibiting the operation of the flow rate control valve of the water self-restoring portion 91 or the air self-restoring portion 92 and the other valves 113 in the corresponding section. For example, a “close signal” for closing the valve is transmitted.

  For example, in the case of a unit device, the water circuit is deactivated because it is not related to the failure location, such as the patient chair 220 (see FIG. 3) can be moved up and down even if the water circuit is stopped. In addition, functions that do not affect safety even when used can operate. However, if the self-diagnosis board 140A determines that the abnormality is a serious abnormality that may cause human damage, the fact is also transmitted when the abnormality is notified to the outside, and the function is stopped. As an example of this, if an abnormality occurs in the function of the air circuit in a dental laser and the laser irradiation is possible with the cooling air output being higher than normal, there is a risk of causing emphysema in the patient. Therefore, in such a case, the laser irradiation function is stopped even if the failure location is only the air circuit. That is, in this case, the function of the dental medical device 100A is stopped.

  Whether the voltage state discriminating means 145 is within the normal range (normal) defined by the specifications of the power supply circuit 120A at the voltage output terminals + 5V, + 12V, + 24V, + 28V, and + 30V of the power supply circuit 120A. This is to determine whether or not. The determination result is output to the voltage state repair circuits 123a to 123e. In the present embodiment, the voltage state determination means 145 is detected by the voltage detection circuits 122a to 122e that detect the voltage value of the voltage output terminal after the voltage of the voltage output terminal is adjusted by the voltage state repair circuits 123a to 123e. Until the determined voltage value falls within the normal range, the determination as to whether or not it is normal is repeated for a predetermined period (for example, the number of determinations in that period is 5). The timing for repeating the determination is determined by, for example, a predetermined multiple of the clock (such as 10 seconds). In this embodiment, the voltage state determination unit 145 further determines whether the abnormality in the voltage value of the voltage output terminal of the power supply circuit 120A is a predetermined abnormality level. That is, when it is determined whether or not it is normal for a predetermined number of times, the abnormality level is high, and when the number of determination is less than the predetermined number of times, the abnormality level is low.

  The voltage output function stop unit 146 is connected to the voltage output terminal of the power supply circuit 120A when the voltage state determination unit 145 determines that the abnormal level of the voltage output terminal of the power supply circuit 120A is high. This stops the function of the electric circuit using the function. The voltage output function stop unit 146 transmits an operation stop command for prohibiting the operation to the electric circuit 180 in the apparatus connected to the power supply line of the voltage output terminal where the abnormality is detected. In the present embodiment, the voltage output function stop unit 146 determines whether or not a predetermined time (for example, 10 seconds) has elapsed since the abnormal power supply line is disabled, and outputs the determination result to the communication control unit 144. .

  The loopback test monitoring means 147 sends a trial data to the electric circuit 180 itself to check whether each electric circuit 180 in the dental medical device 100A is operating normally. Is executed, and an electric circuit that does not normally receive the loopback signal is detected. In the present embodiment, when the loopback test monitoring unit 147 detects an electric circuit 180 that has not normally received the loopback signal, the loopback test monitoring unit 147 notifies the communication control unit 144 of the fact to notify the abnormality to the outside. Output. In this case, the loopback test monitoring unit 147 notifies the abnormality by the notification unit 170. Further, in this case, the loopback test monitoring unit 147 outputs a message to that effect to the voltage output function stop unit 146, thereby performing control to stop the operation of the abnormal part.

  When the flow rate of the fluid such as water or air detected at the monitoring position of the fluid circuit 110 is not within the normal range, the communication control means 144 displays information indicating that the monitoring position is an abnormal location. Along with information on the use environment of the medical device 100A, the transmission circuit 150 is controlled and transmitted to the outside. In the present embodiment, the communication control unit 144 determines whether the detected flow rate of fluid such as water or air is normal within a predetermined number of times without being within the normal range. In addition, the transmission circuit 150 is controlled to further transmit information indicating that the abnormality at the monitoring position cannot be repaired.

  When the voltage value detected at each voltage output terminal of the power supply circuit 120A is not within the normal range, the communication control unit 144 displays information indicating that an abnormality has occurred in the voltage at the voltage output terminal. Along with information on the usage environment of the medical device 100A, the transmission circuit 150 is controlled and transmitted to the outside. In the present embodiment, the communication control unit 144 determines whether the voltage value detected at the voltage output terminal of the power supply circuit 120A is normal within a normal number of times without being within the normal range. In this case, the transmission circuit 150 is controlled to further transmit information indicating that the abnormality in the voltage at the voltage output terminal cannot be repaired.

  When the loopback test monitoring unit 147 detects an abnormality in the loopback signal, the communication control unit 144 uses the information on the electric circuit 180 in which the abnormality is detected in the loopback signal to use the dental medical device 100A. Along with information on the environment, the transmission circuit 150 is controlled and transmitted to the outside.

  The three-way solenoid valve control unit 148 is configured to block one of the first fluid circuit and the second fluid circuit and open the other based on the non-repairable information output from the fluid circuit state determination unit 141. The electromagnetic valve 114 is controlled. In the present embodiment, since the first fluid circuit is opened and the second fluid circuit is shut off as an initial state, the three-way solenoid valve control unit 148 obtains the non-repairable information when the first fluid circuit is acquired. The three-way solenoid valve 114 is controlled so as to shut off the fluid circuit and open the second fluid circuit.

  The fluid circuit state determining means 141, the fluid circuit state restoring means 142, the fluid circuit function stopping means 143, the communication control means 144, the voltage state determining means 145, the voltage output function stopping means 146, the loopback test monitoring means 147, and the three-way electromagnetic The valve control means 148 realizes its function when the CPU develops and executes a predetermined program stored in the ROM or the like on the RAM. Therefore, these means 141 to 148 can also be realized by executing a program that causes a general computer to execute the above-described functions. This program can be provided via a communication line, or can be written on a recording medium such as a CD-ROM and distributed.

  The operation unit 160 is for turning on / off the operation of the handpiece 131 and adjusting the operation level. For example, a control panel on the table 192 (see FIG. 2) or a foot controller 194 (see FIG. 2). Consists of

  When the transmission circuit 150 transmits information regarding an abnormality of the dental medical device 100A to the outside, the notification unit (notification unit) 170 notifies the information regarding the abnormality with a warning display and / or a warning sound. In the present embodiment, the notification unit 170 is provided with a display unit 171 and a speaker 172 in order to notify the user of the current situation.

  The display unit 171 includes, for example, an LED lighting lamp, a digital display panel, a liquid crystal screen, and the like. In the case of using the LED lighting lamp, a plurality of LED lighting lamps can be provided for each part of the dental medical device 100A, and a warning can be displayed by lighting or blinking the lamp indicating the location where the abnormality has occurred. Alternatively, a plurality of LED lighting lamps can be provided for each operating state (normal, abnormal, unrepairable, etc.) of the dental medical device 100A, and a warning can be displayed by lighting or blinking the lamp indicating the operating state. Or one LED lighting lamp which shows abnormality of 100 A of dental medical devices can be provided, and warning display can be carried out by the lighting or blinking of the lamp. Further, when a digital display panel, a liquid crystal screen, or the like is used, an abnormal location can be displayed together with a display “ERROR”, or a warning can be displayed simply by displaying or blinking the characters “ERROR”. In addition, when a warning light is displayed by blinking an unillustrated surgical light provided on the upper portion of the unit main body 240 as the display unit 171 several times, it is necessary to newly provide a special configuration for displaying an abnormality. Absent.

  For example, the speaker 172 may provide a warning that “abnormality has occurred”, an operating state of the dental medical device 100A (normal, abnormal, switching, unrepairable, etc.), voice guidance or warning sound indicating the location of the abnormality. Is output. Note that a buzzer may be incorporated in the notification unit 170 to generate a warning sound.

  In addition, the notification unit 170 is connected to the in-hospital network or the like of the clinic where the dental medical device 100A is installed, and the operation state (normal or abnormal) of the dental medical device 100A is connected to the LED display lamp or the like at the reception in the clinic. , Switching, repair impossible, etc.) are displayed in real time, or the operating status (normal, abnormal, switching, repair impossible, etc.) of the dental medical device 100A is displayed on the screen of a personal computer etc. It is also possible to display in real time.

[Plumbing configuration example of fluid circuit of dental medical equipment]
FIG. 6 is a piping configuration diagram schematically showing a water circuit and an air circuit as the fluid circuit shown in FIG. A dental medical device 100A shown in FIG. 6 includes a unit 300, a table 192, a foot controller 194 having a foot valve 21a, a valve block 196, a bowl washing unit 197, a separator 198, an assistant hanger 250, and the like.

  The unit 300 is for supplying water and air. 1 is a water pressure source, 1a is a pressurized water supply line connected to the water pressure source 1, and the pressurized water supply line 1a is sequentially provided from the water pressure source 1 side. Opening / closing cock 2, filter 3a, check valve 4, construction box cock 2a, three-way solenoid valve 114, first pressure reducing valve 18A and second pressure reducing valve 18B, water self-repairing portions 91A, 91B (see FIG. 4) The first check valve 4A, the second check valve 4B, and the hollow fiber filter 3b are connected. The first fluid circuit 1a1 provided with the first pressure reducing valve 18A, the water self-repairing part 91A and the first check valve 4A, the second pressure reducing valve 18B, the water self-repairing part 91B and the second The second fluid circuit 1a2 provided with the check valve 4B is provided in parallel with each other, and the three-way electromagnetic valve 114 is provided in the upstream branch. As an initial state, the three-way solenoid valve 114 opens the first fluid circuit 1a1 and shuts off the second fluid circuit 1a2.

  In the unit 300, reference numeral 16 denotes an air pressure source, and a compressed air supply line 15a is connected to the air pressure source 16, and the compressed air supply line 15a is connected to an open / close cock 17, a three-way solenoid valve 114, a second electromagnetic valve 114, and the like. One pressure reducing valve 18A and second pressure reducing valve 18B, air self-repairing parts 92A and 92B (see FIG. 4), drained filter 19, pressure gauge 20, and foot controller 194 are connected in this order. The first fluid circuit 15a1 provided with the first pressure reducing valve 18A and the air self-repairing portion 92A, and the second fluid circuit 15a2 provided with the second pressure reducing valve 18B and the air self-repairing portion 92B. The three-way solenoid valve 114 is provided in the upstream branch. As an initial state, the three-way solenoid valve 114 opens the first fluid circuit 15a1 and shuts off the second fluid circuit 15a2.

  A pressurized water supply pipeline 1b, a cup water supply pipeline 1c, and a pot-washing pipeline 1d, which are branch pipelines, are branched and connected to the pressurized water supply pipeline 1a.

  A warmer 9 and a pressurized water supply valve 6 that is actuated by a signal output from the foot controller 194 are connected to the pressurized water supply pipeline 1 b at the primary inlet 28 of the pressurized water supply pipeline 1 b of the valve block 196. Yes. Further, the pressurized water supply pipe 1 b branches off before the warmer 9 and is connected to the syringe 62 via the water self-repairing portion 91.

  In addition, a pot-washing line 1d is branched and connected to the pressurized water supply line 1a before the hollow fiber filter 3b.

  The cup water supply pipe 1c is branched from the pressurized water supply pipe 1a, connected to the warmer 9 and the electromagnetic valve 10 for cup water supply, and is a timer type that injects water into the cup 65 via the water self-repair part 91. The auto-curan (cup water supply pipe) 241 is connected.

  The pot-washing line 1d branches from the pressurized water supply line 1a and is connected to the electromagnetic valve 10 for pot-washing water supply, and its end is connected to the pot-washing nozzle 13 for supplying water to the pot-washing 242. Yes.

  Further, the pressurized water supply pipeline 1b is provided with branch pipelines from the branch points 30, 31, 32 in the valve block 196, respectively, four pressurized water supply valves 26, four flow rate adjusting valves 27, and four. The water self-repairing portion 91 is connected, and finally, an air turbine 51, a micro motor 52 and an air turbine 53, a scaler, etc. having a water injection nozzle portion at the tip of a hand piece 131 which is a DI (dynamic instrument). Are connected to each other.

  The compressed air supply line 15 a extends into the table 192 and the valve block 196 via the foot controller 194 and the air self-repairing portion 92. In the valve block 196, the four flow rate control valves 27, the four valves 41, and the four air self-repairing portions 92 are connected, and the handpiece 131 is connected to the outlet side of each air self-repairing portion 92. An air turbine 51, a micro motor 52, an air turbine 53, and an option 54 such as a scaler are connected to the water injection nozzle at the tip of the nozzle.

  In addition, a compressed air supply line 15 b that is a branch line is connected to the compressed air supply line 15 a, and the compressed air supply line 15 b extends into the table 192 and the valve block 196. In the valve block 196, a three-way solenoid valve 114, four signal valves 25A, four signal valves 25B, and four flow sensors (fluid circuit sensor means) 93A are connected to the compressed air supply line 15b. Has been.

  Furthermore, in the dental medical device 100A shown in FIG. 6, a compressed air supply line 15c, which is a branch line, is connected to the compressed air supply line 15b, and a pressure reducing valve 18 is connected to the compressed air supply line 15c. Is connected. Further, compressed air supply pipes 15c1 and 15c2 for supplying spray and tip air are branched on the outlet side of the pressure reducing valve 18, and valves 23a and 23b are connected to the respective branches. The valve 23 a is connected to the air self-repairing portion 92 and the flow rate adjusting valve 27, and the outlet pipe is connected to the inlet of the shuttle valve 44. Further, a self-repairing part 92 for air is connected to the valve 23 b, and the outlet conduit is connected to the outlet of the shuttle valve 44. A pipe connected to another outlet of the shuttle valve 44 extends into the valve block 196, and four valves 45 and four self-repairing portions 92 for air are connected to the pipe. Furthermore, the outlet side of each valve 45 is connected to an air turbine 51, a micro motor 52, an air turbine 53, and an option 54 such as a scaler at the nozzle portion at the tip of the hand piece 131.

  The four signal valves 25A and 25B are operated by compressed air supplied through the compressed air supply line 15b, and four pressurized water supply valves 26, four valves 41, and four valves are output according to respective output signals. 45 open / close control is performed individually. The first fluid circuit 15b1 provided with four signal valves 25A and four flow sensors (fluid circuit sensor means) 93A and the second fluid circuit 15b2 provided with four signal valves 25B are: The three-way solenoid valve 114 is provided in parallel with each other, and is provided at a branch on the upstream side. As an initial state, the three-way solenoid valve 114 opens the first fluid circuit 15b1 and shuts off the second fluid circuit 15b2. The compressed air supply line 15b is further provided with a branch line 15f. A pressure reducing valve 18 is connected to the branch line 15f, and an air self-repairing portion 92 and a warmer 9 are provided on the outlet side of the pressure reducing valve 18. A syringe 49 is connected through the connector. The syringe 49 is supplied with water from the cup water supply pipe 1 c through the flow rate adjustment valve 27 and the water self-repairing portion 91.

  Further, a branch line 15g is connected to the compressed air supply line 15c2, and this branch line 15g is compressed into a syringe 62, which is one of the handpieces 131, through the air self-repairing portion 92 and the warmer 9. Air is supplied.

  Furthermore, the dental medical device 100 </ b> A shown in FIG. 6 includes a vacuum 71 and a water absorption pipe 72 connected to the rinse unit 70. That is, the branch pipe 1e is branched from the cup water supply pipe 1c, and the branch valve 1e is connected to the solenoid valve 10 and the tank 74 with a check valve. Water is sucked into the water suction pipe 72 through the self-repairing portion 91 and the regulating valve 76, and the water sucked by the vacuum 71 is adjusted by the operation of the central vacuum portion 79 via the air self-repairing portion 92. The water can be drained by being sent to the storage tank 78 provided in the rinse unit 70 through the section 91 and the branch valve 75. The bottom of the storage tank 78 is connected to the drainage system via the water self-repairing portion 91.

  Further, the dental medical device 100A shown in FIG. 6 includes a shuttle valve 81, a three-way electromagnetic valve 114, a first air self-repairing part 92A, a first back-up part for preventing a back flow between the air turbines 51 and 53 as a no-back system part 80. A second air self-repair portion 92B, a first electromagnetic valve 82A, a second electromagnetic valve 82B, a first strap 83A, and a second strap 83B are provided. The first air self-repairing part 92A, the first electromagnetic valve 82A and the first strap 83A are provided in the first exhaust circuit, and the second air self-repairing part 92B and the second electromagnetic valve 82B and the second strap 83B are provided in the second exhaust circuit. Here, the first exhaust circuit and the second exhaust circuit are provided in parallel to each other on the downstream side of the three-way solenoid valve 114. The three-way solenoid valve 114, the first air self-repairing portion 92A, the second air self-repairing portion 92B, the first electromagnetic valve 82A, and the second solenoid valve in the first exhaust circuit and the second exhaust circuit. 82B can be controlled in the same manner as the three-way solenoid valve 114, the first pressure reducing valve 18A and the second pressure reducing valve 18B, and the air self-repairing portions 92A and 92B.

[Operation of dental medical equipment]
The operation of the dental medical device 100A shown in FIG. 5 will be described with reference to FIG. 7 (refer to FIGS. 1 to 6 as appropriate). FIG. 7 is a flowchart showing an example of an operation when the piping of the dental medical device shown in FIG. 5 is abnormal.

<Operation when piping is abnormal>
First, the dental medical device 100A sets the counter value C of the number of times of discrimination for each monitoring position of the fluid circuit state discriminating means 141 of the self-diagnosis board 140A to “0” and the state of the three-way electromagnetic valve 114 when the power is turned on. Is set to open the first fluid circuit and shut off the second fluid circuit. In the dental medical device 100A, the flow rate sensor of the water self-restoring unit 91 or the air self-restoring unit 92 always detects the flow rate at the monitoring position on the fluid circuit 110, and transmits the detected value to the self-diagnosis board 140A. (Step S1). Then, in the dental medical device 100A, whether the flow rate of the fluid such as water or air is within the normal range (normal) defined by the specification of the fluid circuit 110 by the fluid circuit state determination unit 141 of the self-diagnosis board 140A. It is periodically determined whether or not (step S2). When it is normal (step S2: Yes), the fluid circuit state determination unit 141 ends the process for the monitoring position.

  On the other hand, when there is an abnormality (step S2: No), the fluid circuit state determination unit 141 adds “1” to the current counter value C of the number of times of monitoring position determination (step S3), and the current counter value It is determined whether C is 5 or more (step S4). When the current counter value C is less than 5 (step S4: No), the fluid circuit state repairing unit 142 of the self-diagnosis board 140A causes the flow control valve at the monitoring position to control the flow rate within the normal range. Is transmitted (step S5). Thereby, the flow control valve adjusts the flow rate (step S6). Then, the communication control means 144 of the self-diagnosis board 140A transmits information indicating that the monitoring position of the fluid circuit 110 where the abnormality is detected is an abnormal location, together with information regarding the use environment of the dental medical device 100A, to the transmission circuit 150. Is transmitted to the outside (step S7), and the process returns to step S2. At this time, the dental medical device 100A informs the user of the dental medical device 100A of the state of the device (during self-repair, etc.) by the notification unit 170. If the number of transmissions for notifying abnormality for the same monitoring position is two or more, an error history is transmitted.

  In step S4 described above, when the current counter value C at the monitoring position is 5 or more (step S4: Yes), the fluid circuit state determination unit 141 uses the flow rate sensor (the flow rate in the water self-restoring units 91A and 91B). Based on the detection values of the sensors, the flow sensors in the air self-repairing units 92A and 92B, the flow sensor 93A, etc.), it is determined whether or not the repair is possible by switching the fluid circuit (step S8). If the detected value of the flow sensor is larger than the normal range, it is determined that the fluid circuit cannot be repaired by switching the fluid circuit (step S8: No), and the fluid circuit function stopping unit 143 of the self-diagnosis board 140A A control signal for prohibiting use of the section of the fluid circuit 110 through which fluid such as water or air flowing through the monitoring position passes is transmitted (step S9). Then, the communication control means 144 of the self-diagnosis board 140A controls the transmission circuit 150 to further transmit information indicating that the abnormality at the monitoring position of the fluid circuit 110 where the abnormality is detected cannot be repaired (step) S10), the process proceeds to step S13. At this time, the dental medical device 100 </ b> A notifies the user of the dental medical device 100 </ b> A of the status of the device (self-restoration impossible, etc.) by the notification unit 170. On the other hand, when the detected value of the flow sensor is smaller than the normal range, it is determined that the fluid circuit can be repaired by switching the fluid circuit (step S8: Yes), and the three-way solenoid valve control means 148 determines the fluid circuit to be used. Switching (for example, the first fluid circuit 15a1 to the second fluid circuit 15a2, the first fluid circuit 1a1 to the second fluid circuit 1a2, and the first fluid circuit 15b1 to the second fluid circuit 15b2). Then, the communication control means 144 of the self-diagnosis board 140A controls the transmission circuit 150 to further transmit information indicating that the abnormality at the monitoring position of the fluid circuit 110 where the abnormality is detected can be repaired by switching ( The process proceeds to step S12) and step S13. At this time, the dental medical device 100A informs the user of the dental medical device 100A of the state of the device (switching of the fluid circuit, etc.) by the notification unit 170. Then, the dental medical device 100A clears the current counter value C of the number of times of determination of the monitoring position (Step S13) and ends the process.

≪Specific example in case of water circuit≫
Specifically, in the piping configuration shown in FIG. 6, the self-diagnosis board 140 </ b> A generates, for example, a constant amount of water from the cup water supply nozzle 243 based on the flow rate received from the flow rate sensor provided at each monitoring position. It can be determined whether or not the flow rate is necessary for supply. When the self-diagnosis board 140A receives a signal from each flow rate sensor such that “a constant amount of water cannot be supplied from the cup water supply nozzle 243”, it activates another circuit. Send signal to flow control valve to return to normal range. Then, after transmitting a signal to the flow control valve (adjusting electromagnetic valve 112), the self-diagnosis board 140A determines whether the signal from the corresponding flow sensor has returned to the range of “value indicating normal flow rate”. If it has not returned, the flow control valve is adjusted several times (for example, 5 times). If it still does not return, the three-way solenoid valve 114 is controlled to change the fluid circuit to be used from the first fluid circuit 1a1 to the second fluid circuit. Switch to the fluid circuit 1a2 or disable the "water circuit from the water pressure source 1 to the cup water supply nozzle 243" and disable the electrical components that require the water circuit.

≪Specific example in case of air circuit≫
Specifically, in the piping configuration shown in FIG. 6, the self-diagnosis board 140 </ b> A rotates the air turbine 51 at a rated rotational speed based on the flow rate received from the flow rate sensor provided at each monitoring position, for example. It is possible to determine whether the air flow rate is constant to satisfy the function. When the self-diagnosis board 140A receives a signal of a value indicating that “a constant amount of air cannot be supplied to the air turbine 51” from each flow sensor, it activates another circuit. Send signal to flow control valve to return to normal range. Then, after transmitting a signal to the flow control valve (adjusting electromagnetic valve 112), the self-diagnosis board 140A determines whether the signal from the corresponding flow sensor has returned to the range of “value indicating normal flow rate”. If not returned, the self-diagnosis board 140A performs adjustment by the flow rate control valve several times (for example, 5 times), and if it still does not return, the three-way solenoid valve 114 is controlled to use the fluid circuit to be used as the first fluid. The circuit 15a1 is switched to the second fluid circuit 15a2, or the “air circuit from the air pressure source 16 to the air turbine 51” cannot be used, and electrical components that require the air circuit are disabled. The parts that require the air circuit are (1) the case of the air turbine 51, and (2) the case of all handpieces 51, 52, 53, 54, 49, 62 using air. Indicates either. The self-diagnosis board 140A selects either (1) or (2) according to the abnormal part.

According to the present embodiment, since the dental medical device 100A can continue the operation without using the site where the abnormality has occurred, the influence of the abnormality can be suppressed and more comfortable treatment or diagnosis can be performed. .
Further, according to the present embodiment, the dental medical device 100A detects an abnormality when the water circuit piping is abnormal, and performs self-restoration and notification to the outside. Therefore, due to a decrease or increase in the water pressure of the water circuit piping. In addition, it is possible to prevent risks to the patient due to insufficient water supply, water leakage, damage to each pipe, and the like.
In addition, according to the present embodiment, the dental medical device 100A detects an abnormality when an abnormality occurs in the piping of the air circuit, and performs self-repair and notification to the outside. Further, it is possible to prevent risks to the patient due to poor rotation of the air turbine 51, wear of the bearing, heat generation of the micromotor 52, damage to each pipe, and the like.
Furthermore, according to this embodiment, the dental medical device 100A detects an abnormality when the voltage at the voltage output terminal of the power supply circuit 120A is abnormal, and performs self-repair and notification to the outside. It is possible to prevent laser irradiation failure due to voltage drop and failure of electrical circuit components due to abnormal voltage.

  Subsequently, a dental medical device according to another embodiment of the present invention will be described focusing on differences from the above-described dental medical device 100A. FIG. 8 is a block diagram schematically showing the overall configuration of a dental medical device according to another embodiment of the present invention. As shown in FIG. 8, a dental medical device 100B according to another embodiment of the present invention includes a power supply circuit 120B and a self-diagnosis board 140B instead of the power supply circuit 120A and the self-diagnosis board 140A.

  The power supply circuit 120B includes a first voltage detection circuit 122a1 and a second voltage detection circuit 122a2 that are equivalent to the voltage detection circuit 122a so as to be parallel to each other. The power supply circuit 120B further includes a switching circuit 129. The switching circuit 129 is provided between the voltage output terminal 124, the first voltage detection circuit 122a1 and the second voltage detection circuit 122a2, and the first voltage detection circuit 122a1 and the second voltage detection circuit 122a2. Is electrically disconnected, and the other of the first voltage detection circuit 122a1 and the second voltage detection circuit 122a2 is electrically connected. In the present embodiment, as an initial state, the first voltage detection circuit 122a1 is electrically connected to the voltage output terminal 124 and the second voltage detection circuit 122a2 is electrically disconnected.

  The power supply circuit 120B corresponds to the voltage output terminals 125 to 128 in the same manner as the first voltage detection circuit 122a1, the second voltage detection circuit 122a2, and the switching circuit 129 corresponding to the voltage output terminal 124. Voltage detection circuits 122b1, 122c1, 122d1, 122e1, second voltage detection circuits 122b2, 122c2, 122d2, 122e2, and a switching circuit 129.

  The self-diagnosis board 140B further includes switching circuit control means 149. The switching circuit control means 149 electrically disconnects the first voltage detection circuit 122a1 from the voltage output terminal 124 when the voltage value detected by the first voltage detection circuit 122a1 is not within the normal range. At the same time, the switching circuit 129 is controlled so as to electrically connect the second voltage detection circuit 122a2.

  In the present embodiment, the voltage state determination unit 145 is a first voltage detection circuit 122a1 that detects the voltage value of the voltage output terminal 124 after the voltage of the voltage output terminal 124 is adjusted by the voltage state repair circuit 123a. Until the detected voltage value falls within the normal range, the determination as to whether or not the voltage value is normal is repeated for a predetermined period, and the voltage value detected at the voltage output terminal 124 does not fall within the normal range. When it is determined whether or not it is normal for a predetermined period, it outputs unrepairable information indicating that the abnormality in the voltage at the voltage output terminal 124 cannot be repaired, and the switching circuit control means 149 The first voltage detection circuit 122a is electrically disconnected and the second voltage detection circuit 122b is electrically connected based on the output non-repairable information. To control the exchange circuit 149.

  The dental medical device 100B includes the switching circuit 129, the first voltage detection circuit 122a1, the second voltage detection circuit 122a2, the voltage state restoration circuit 123a, the voltage state determination unit 145, and the switching circuit control unit 149 of the above embodiment. Similar to the three-way solenoid valve 114, the first pressure-reducing valve 18A, the second pressure-reducing valve 18B, the air self-repairing portions 92A and 92B, the fluid circuit state restoring means 142, the fluid circuit state determining means 141, and the three-way solenoid valve control means 148 Can be operated. Therefore, the dental medical device 100B can cope with a failure of the voltage detection circuit and the like by performing the same operation as in the flowchart of FIG.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, It can implement in the range which does not change the meaning. For example, although the present embodiment has been described as a general dental medical device, it is needless to say that the present invention can be realized by a laser device, a unit device, an X-ray device, and other medical devices.

  In the present embodiment, water and air are exemplified as the fluid flowing in the fluid circuit. However, the fluid may be an inert gas, a fuel gas for a gas burner, or the like instead of air. The fluid circuit sensor means 111 is a flow sensor that detects the flow rate of the fluid, but may be a pressure sensor that detects the pressure of the fluid. Further, the water self-repairing portion 91B and the air self-repairing portion 92B in the second fluid circuit can be omitted. Further, the second fluid circuit of the present invention can be provided in another fluid circuit.

  Further, in this embodiment, when the fluid circuit state determination unit 141 and the voltage state determination unit 145 determine whether or not the fluid circuit state determination unit 141 is normal for a predetermined number of times, the abnormality level is high, which is higher than the predetermined number of times. Although the abnormal level is low when the number of determinations is small, in the present invention, it is not necessary to link the determination method of the level of the abnormal level with the number of determinations. For example, a high level may be set when it deviates by 10% or more from a specified normal range, and a low level may be set when it is smaller than that.

It is a block diagram which shows typically an example of the dental medical device which concerns on embodiment of this invention. It is a perspective view which shows an example of the external appearance of the dental medical device shown in FIG. It is a perspective view which shows the external appearance of the other example (unit apparatus) of the dental medical device which concerns on embodiment of this invention. It is a block diagram which shows typically the unit apparatus shown in FIG. It is a block diagram showing typically the whole dental medical equipment composition concerning the embodiment of the present invention. It is a piping block diagram which shows typically a water circuit and an air circuit as a fluid circuit shown in FIG. It is a flowchart which shows an example of the operation | movement at the time of abnormality of piping by the dental medical device which concerns on embodiment of this invention. It is a block diagram which shows typically the whole structure of the dental medical device which concerns on other embodiment of this invention.

Explanation of symbols

1 Water pressure source (fluid supply source)
16 Air pressure source (fluid supply source)
91, 91A, 91B Water self-repair part 92, 91A, 91B Air self-repair part 93A flow sensor (fluid circuit sensor means)
100 (100A, 100B) Dental medical equipment 101 Electric circuit section 102 Power plug 103 Transformer 104a Air pipe (fluid pipe)
104b Air pipe (fluid pipe)
104c Cooling water pipe (fluid pipe)
110 Fluid circuit 111 Fluid circuit sensor means 112 Solenoid valve for adjustment 113 Valve 114 Three-way solenoid valve (switching means)
120, 120A, 120B Power supply circuit (power supply unit)
121 AC / DC converter 122 Voltage detection means 122a to 122e Voltage detection circuit (voltage detection means)
123 Voltage state repair means 123a to 123e Voltage state repair means 130 Output control circuit 131 Handpiece 132 Manipulator 140, 140A, 140B Self-diagnosis board 141 Fluid circuit state determination means 142 Fluid circuit state repair means 143 Fluid circuit function stop means (function stop) means)
144 Communication control means 145 Voltage state determination means 146 Voltage output function stop means (function stop means)
147 Loopback test monitoring means 150 Transmission circuit (transmission means)
160 Operation part 170 Notification part (notification means)
171 Display unit 172 Speaker 180 Electric circuit 191 Device main body 192 Table 194 Foot controller 195 Caster 196 Valve block 197 Bowl washing unit 198 Separator 200 Unit device (dental medical device)
250 Assistant hanger NW communication network

Claims (9)

A dental medical device having a fluid circuit portion through which a fluid supplied from a fluid supply source to a treatment instrument used to treat a patient's teeth and / or a fluid discharged from the treatment instrument flows;
The fluid circuit section is
A first fluid circuit;
A second fluid circuit provided in parallel with the first fluid circuit;
Provided between the fluid supply source, the first fluid circuit and the second fluid circuit, and shuts off one of the first fluid circuit and the second fluid circuit; Switching means for opening the other of the fluid circuit and the second fluid circuit;
With
Further comprising a switching control means for controlling the switching means,
The first fluid circuit is provided at a predetermined monitoring position of the first fluid circuit to detect an abnormality of the first fluid circuit, and detects a flow rate or pressure of a fluid flowing through the monitoring position. Fluid circuit sensor means for
The switching means, as an initial state, opens the first fluid circuit and shuts off the second fluid circuit,
The switching control means is configured to shut off the first fluid circuit and open the second fluid circuit when the flow rate or pressure of the fluid detected at the monitoring position is not within a normal range. A dental medical device characterized by controlling switching means. The first fluid circuit includes an adjusting solenoid valve that adjusts a flow rate or pressure of a fluid that is provided near the monitoring position and flows through the monitoring position.
Fluid circuit state determining means for determining whether or not the flow rate or pressure of the fluid detected at the monitoring position is within a normal range defined by the specifications of the fluid circuit;
An adjusting solenoid valve that adjusts the flow rate or pressure of the fluid flowing through the monitoring position so that the fluid flow rate or pressure detected at the monitoring position is not within the normal range so that it is within the normal range; Fluid circuit state repair means for controlling;
Further comprising
The fluid circuit state discriminating means monitors the fluid circuit state when the detected fluid flow rate or pressure does not fall within a normal range after the adjustment solenoid valve is controlled by the fluid circuit state repairing means. Output unrepairable information indicating that the anomaly at the location is unrepairable,
The switching control means controls the switching means to shut off the first fluid circuit and open the second fluid circuit based on the outputted non-repairable information. The dental medical device according to claim 1. The fluid circuit state discriminating means is configured such that the flow rate or pressure of the fluid detected by the fluid circuit sensor means provided at the monitoring position is normal after the adjusting solenoid valve is controlled by the fluid circuit state repairing means. Until it is within the range, it is repeatedly determined whether or not it is normal for a predetermined period, and whether or not the detected flow rate or pressure of the fluid is normal for the predetermined period without being within the normal range. The non-repairable information indicating that the abnormality at the monitoring position cannot be repaired is output when the determination is made. The second fluid circuit is:
Fluid circuit sensor means for detecting a flow rate or pressure of fluid flowing in the monitoring position provided at a predetermined monitoring position of the second fluid circuit in order to monitor abnormality of the second fluid circuit;
An adjusting solenoid valve for adjusting a flow rate or pressure of a fluid that is provided near the monitoring position and flows through the monitoring position;
The dental medical device according to claim 2 or 3, characterized by comprising:   The apparatus further comprises a notification means for notifying the fact by a warning display and / or a warning sound when the flow rate or pressure of the fluid detected at the monitoring position is not within a normal range. The dental medical device according to claim 4. A dental medical device that outputs fluid, laser light, or X-rays by ejecting fluid to a treatment instrument, irradiating a patient with laser light, or irradiating X-rays for treating or diagnosing a patient's teeth. ,
First detecting a voltage value of a predetermined voltage output terminal of the power supply unit in order to monitor an abnormality about a voltage output from the power supply unit supplying power to each electric circuit in the dental medical device Voltage detection means,
The power supply unit is provided in parallel with the first voltage detection unit, and monitors the abnormality of the voltage output from the power supply unit that supplies power to each electric circuit in the dental medical device. Second voltage detection means for detecting a voltage value of the determined voltage output terminal;
One of the first voltage detection means and the second voltage detection means provided between the voltage output terminal of the power supply unit and the first voltage detection means and the second voltage detection means. And a switching means for electrically connecting the other of the first voltage detection means and the second voltage detection means,
Switching control means for controlling the switching means;
With
The switching means, as an initial state, electrically connects the first voltage detection means to the voltage output terminal and electrically disconnects the second voltage detection means,
The switching control means electrically disconnects the first voltage detection means from the voltage output terminal when the voltage value detected by the first voltage detection means is not within a normal range. And the switching means is controlled so as to electrically connect the second voltage detection means. Voltage state determining means for determining whether or not the voltage value detected at the voltage output terminal is within a normal range defined by the specifications of the power supply unit;
Voltage state repair that adjusts the voltage at the voltage output terminal so that the voltage value at the voltage output terminal is within the normal range when the voltage value detected at the voltage output terminal is not within the normal range. Means,
Further comprising
The voltage state discriminating unit is configured such that the voltage value detected by the first voltage detecting unit at the voltage output terminal is within a normal range after the voltage of the voltage output terminal is adjusted by the voltage state restoring unit. If not, output the unrepairable information indicating that the abnormality in the voltage at the voltage output terminal cannot be repaired,
The switching control means is configured to electrically disconnect the first voltage detection means and to electrically connect the second voltage detection means based on the outputted non-repairable information. The dental medical device according to claim 6, wherein the dental medical device is controlled. The voltage state discriminating means detects the voltage value detected by the first voltage detecting means for detecting the voltage value of the voltage output terminal after the voltage of the voltage output terminal is adjusted by the voltage state repairing means. Until it is within the normal range, it is repeatedly determined whether or not it is normal for a predetermined period, and the voltage value detected at the voltage output terminal is not within the normal range and is normal for the predetermined period. When the determination is made, whether or not the abnormality in the voltage at the voltage output terminal is unrepairable is output, the unrepairable information is output. machine.   The information processing apparatus according to any one of claims 6 to 6, further comprising a notification means for notifying the fact by a warning display and / or a warning sound when the voltage value detected at the voltage output terminal is not within the normal range. The dental medical device according to any one of 8.

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