WO2017141427A1 - Système de traitement, dispositif d'alimentation électrique et circuit de commande de sortie - Google Patents

Système de traitement, dispositif d'alimentation électrique et circuit de commande de sortie Download PDF

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Publication number
WO2017141427A1
WO2017141427A1 PCT/JP2016/054894 JP2016054894W WO2017141427A1 WO 2017141427 A1 WO2017141427 A1 WO 2017141427A1 JP 2016054894 W JP2016054894 W JP 2016054894W WO 2017141427 A1 WO2017141427 A1 WO 2017141427A1
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WO
WIPO (PCT)
Prior art keywords
circuit
output
control circuit
main control
physical quantity
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PCT/JP2016/054894
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English (en)
Japanese (ja)
Inventor
興 川島
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オリンパス株式会社
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Priority to PCT/JP2016/054894 priority Critical patent/WO2017141427A1/fr
Publication of WO2017141427A1 publication Critical patent/WO2017141427A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current

Definitions

  • the present invention relates to a treatment system that treats a subject using energy, a power supply device that outputs electric power for generating energy used in a treatment unit of the treatment system, and an output control circuit used in such a power supply device.
  • a power supply device that outputs electric power for generating energy used in a treatment unit of the treatment system
  • an output control circuit used in such a power supply device.
  • a treatment system for treating a living tissue of a subject using energy is known.
  • the treatment system of International Publication No. WO2010 / 047395 is a treatment system that treats a living tissue with ultrasonic energy.
  • the treatment system of International Publication No. WO2010 / 047395 has a failure detection mechanism for detecting a failure.
  • failure detection mechanism itself fails, failure detection cannot be performed accurately. For this reason, redundancy of failure detection is also increased by duplicating the failure detection mechanism. However, when the failure detection mechanism is duplicated, the difficulty of design accuracy of each failure detection mechanism is likely to increase.
  • the present invention has been made in view of the circumstances described above, and is a treatment system, a power supply device, and an output control circuit used in such a power supply device capable of increasing the redundancy of failure detection while relaxing the design accuracy.
  • the purpose is to provide.
  • the treatment system includes a treatment unit that treats a subject using energy, a plurality of output detection circuits that detect a physical quantity related to the energy, and a plurality of output detection circuits.
  • Each of the circuit areas includes an output acquisition circuit that acquires the value of the physical quantity detected by the corresponding output detection circuit, and the value of the physical quantity acquired by the output acquisition circuit included in each of the circuit areas.
  • An error detection circuit that detects a failure based on the presence or absence of a difference and notifies an error
  • a communication circuit that communicates information with the main control circuit, and any one of the circuits The area generates electric power for generating the energy according to a comparison result between the physical quantity value acquired by the output acquisition circuit and the target value input from the main control circuit via the communication circuit.
  • the communication circuit further includes an output generation circuit, wherein the communication circuit communicates the error notification from the error detection circuit to the main control circuit, and communicates the target value from the main control circuit to the output generation circuit.
  • the power supply device includes a plurality of output detection circuits that detect a physical quantity related to energy generated in a treatment unit that treats a subject, and the plurality of output detection circuits that detect the physical quantities.
  • An output control circuit that controls the energy according to a physical quantity; and a main control circuit that controls the output control circuit, the output control circuit having a plurality of separated circuit regions, and each of the circuits
  • the area is an output acquisition circuit that acquires the value of the physical quantity detected by the corresponding output detection circuit, and whether there is a difference between the values of the physical quantity acquired by the output acquisition circuit included in each of the circuit areas
  • An error detection circuit that detects a failure and notifies an error, and a communication circuit that communicates information with the main control circuit, and any one of the circuit areas includes the output
  • An output generation circuit for generating electric power for generating the energy according to a comparison result between the physical quantity value acquired by the acquisition circuit and the target value input from the main control circuit via the communication circuit; And the communication circuit communicates the error notification from
  • the output control circuit provides the energy in accordance with the physical quantity detected by each of a plurality of output detection circuits that detect a physical quantity related to energy generated in a treatment unit that treats the subject.
  • An output control circuit for controlling wherein the output control circuit has a plurality of separated circuit areas, and each of the circuit areas acquires the value of the physical quantity detected by the corresponding output detection circuit.
  • the error notification is communicated to the main control circuit, and the target value from the main control circuit is communicated to the output generation circuit.
  • the present invention it is possible to provide a treatment system, a power supply apparatus, and an output control circuit used for such a power supply apparatus that can increase the redundancy of failure detection while relaxing the design accuracy.
  • FIG. 1 is a diagram illustrating a configuration of an example of a treatment system including a power supply device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating an exemplary configuration of the inside of the power supply apparatus.
  • FIG. 3 is a block diagram illustrating a configuration example of the inside of the output control circuit.
  • FIG. 1 is a diagram illustrating a configuration of an example of a treatment system including a power supply device according to an embodiment of the present invention.
  • a treatment system 1 shown in FIG. 1 is an ultrasonic treatment system.
  • the ultrasonic treatment system is configured to treat a subject using energy by ultrasonic vibration in a treatment unit.
  • the treatment system 1 is an ultrasonic treatment system.
  • the treatment system 1 may not be an ultrasonic treatment system.
  • the power supply device according to the present embodiment can be applied to various treatment systems configured to treat a subject using energy generated in a treatment unit.
  • the power supply device according to the present embodiment is configured to treat a subject using thermal energy generated by a treatment system and a heater configured to treat the subject using energy by high-frequency current. It can also be applied to treatment systems.
  • the treatment system 1 includes a treatment tool 10 and a power supply device 80.
  • the treatment tool 10 is a part for performing treatment on a subject.
  • the power supply device 80 supplies electric power for ultrasonically vibrating the distal end of the treatment instrument 10.
  • the treatment instrument 10 as a treatment unit includes a handle unit 20 and a probe unit 30.
  • the probe unit 30 side of the treatment instrument 10 is referred to as the distal end side of the treatment instrument 10
  • the handle unit 20 side is referred to as the proximal end side.
  • the handle unit 20 has an ultrasonic transducer inside.
  • the ultrasonic transducer is connected to the power supply device 80 via the cable 26.
  • the ultrasonic vibrator vibrates ultrasonically according to the electric power from the power supply device 80.
  • the ultrasonic vibration generated by the ultrasonic vibrator is transmitted to the probe unit 30.
  • the probe unit 30 includes a probe 180 and a jaw 182.
  • the probe 180 is connected to the ultrasonic vibrator and vibrates with the vibration of the ultrasonic vibrator.
  • the jaw 182 is configured to be openable and closable.
  • the handle unit 20 has a hand switch 22.
  • the hand switch 22 is provided for inputting an instruction for driving the ultrasonic transducer.
  • the hand switch 22 may include a plurality of switches so that a plurality of types of inputs corresponding to driving of a plurality of types of ultrasonic transducers are performed.
  • the hand switch 22 is connected to the power supply device 80 via the cable 26.
  • the power supply device 80 detects an input to the hand switch 22 and supplies power corresponding to the input to the ultrasonic transducer.
  • the handle unit 20 has a movable handle 23 and a fixed handle 24.
  • the movable handle 23 When the movable handle 23 is closed, the jaw 182 provided at the tip of the probe unit 30 is closed.
  • the handle unit 20 has a rotation operation knob 25. By rotating the rotary operation knob 25, the probe unit 30 is rotated around the longitudinal axis of the treatment instrument 10.
  • the user When performing a treatment, the user holds the handle unit 20 and brings the probe 180 of the probe unit 30 that vibrates ultrasonically into contact with the biological tissue to be treated. At this time, the user operates the hand switch 22 to vibrate the ultrasonic transducer. The vibration generated by the ultrasonic transducer is transmitted to the probe 180. When the tip of the vibrating probe 180 comes into contact with the living tissue, the living tissue is treated.
  • FIG. 2 is a block diagram showing an example of the internal configuration of the power supply device 80.
  • the power supply device 80 includes a main control circuit 100, an output control circuit 102, and output detection circuits 104a and 104b.
  • the main control circuit 100 is constituted by a CPU, for example, and controls the operation of the output control circuit 102.
  • the main control circuit 100 inputs a target value of ultrasonic vibration to the output control circuit 102.
  • the target value of the ultrasonic vibration is set according to the input of the operator's hand switch 22, for example, and is set according to the physical quantity to be controlled by the output control circuit 102.
  • the target value is, for example, a current value corresponding to the amplitude of the ultrasonic vibration.
  • the target value is, for example, a current corresponding to the amplitude of ultrasonic vibration necessary to set the temperature of the living tissue to a predetermined temperature. Value.
  • the main control circuit 100 also stops the operation of the output control circuit 102 when receiving an error notification from the output control circuit 102.
  • the output control circuit 102 as a power supply circuit is configured by, for example, an FPGA.
  • the output control circuit 102 is electrically connected to the ultrasonic transducer 27 and generates electric power for driving the ultrasonic transducer 27.
  • the output control circuit 102 feeds back a current value for driving the ultrasonic transducer 27 so that the current value of the physical quantity detected by the output detection circuit 104a becomes the target value input from the main control circuit 100. Control.
  • the output control circuit 102 detects a failure by comparing the difference between the physical quantity detected by the output detection circuit 104a and the physical quantity detected by the output detection circuit 104b. When a failure is detected, the output control circuit 102 notifies the main control circuit 100 of an error.
  • the output detection circuits 104a and 104b detect a physical quantity related to the energy generated in the treatment instrument 10, and input a signal corresponding to the detected physical quantity to the output control circuit 102. In the case of an ultrasonic treatment system, this physical quantity is the output current and output voltage of the output control circuit 102.
  • the circuit configuration of the output detection circuits 104 a and 104 b can be selected as appropriate depending on the physical quantity used for feedback control in the output control circuit 102. However, the circuit configurations of the output detection circuits 104a and 104b detect physical quantities at the same location. For example, the output detection circuits 104a and 104b detect currents at the same location, such as the output terminal portion of the output control circuit 102, respectively.
  • FIG. 3 is a block diagram showing an example of the internal configuration of the output control circuit 102.
  • the output control circuit 102 has two separated circuit regions 200a and 200b.
  • the circuit area 200a and the circuit area 200b are physically and functionally separated so as not to be affected by the failure of the circuit areas. That is, the circuit block provided in the circuit area 200a does not extend over the circuit area 200b, and the circuit block provided in the circuit area 200b does not extend over the circuit area 200a.
  • the wiring connecting the circuit blocks in the circuit area 200a is provided only in the circuit area 200a and is not routed outside the circuit area 200a. Further, the wiring connecting the circuit blocks in the circuit area 200b is provided only in the circuit area 200b and is not routed outside the circuit area 200b.
  • the wiring connecting the circuit area 200a and the circuit area 200b is also configured so as not to be affected by the failure of the circuit areas.
  • the method of separating the circuit areas 200a and 200b is not particularly limited as long as it is physically and functionally separated so as not to be affected by the failure of the circuit areas.
  • the circuit area 200a includes a communication circuit 202a, an output acquisition circuit 204a, an output generation circuit 206, and an error detection circuit 208a as circuit blocks.
  • the circuit area 200b has a communication circuit 202b, an output acquisition circuit 204b, and an error detection circuit 208b as circuit blocks.
  • the communication circuit 202a includes an interface for performing communication between the circuit area 200a and the main control circuit 100.
  • the communication circuit 202b has the same circuit configuration as the communication circuit 202a and includes an interface for performing communication between the circuit area 200b and the main control circuit 100.
  • the communication circuits 202a and 202b perform communication by a communication method such as I 2 C (Inter-Integrated Circuit), UART (Universal Asynchronous Receiver Transmitter), or SPI (Serial Peripheral Interface).
  • I 2 C Inter-Integrated Circuit
  • UART Universal Asynchronous Receiver Transmitter
  • SPI Serial Peripheral Interface
  • the communication circuits 202a and 202b may communicate with the main control circuit 100 by other methods.
  • the output acquisition circuits 204a and 204b each acquire the output from the corresponding output detection circuit. That is, the output acquisition circuit 204a acquires the physical quantity (for example, current) detected by the output detection circuit 104a by converting it into a digital signal, for example.
  • the output acquisition circuit 204b acquires the physical quantity (for example, current) detected by the output detection circuit 104b by converting it into a digital signal, for example.
  • the output generation circuit 206 generates electric power for generating energy in the treatment instrument 10 according to the deviation between the target value input from the main control circuit 100 and the current value of the physical quantity acquired by the output acquisition circuit 204a. For example, the output generation circuit 206 changes the output voltage so that there is no deviation between the target value of the current input from the main control circuit 100 and the current value acquired by the output acquisition circuit 204a. The power for generating is generated.
  • the error detection circuits 208a and 208b have the same circuit configuration, and detect a system failure from the difference in physical quantity acquired by the output acquisition circuit included in each circuit area.
  • the error detection circuits 208a and 208b output an error notification indicating that a system failure has been detected to the main control circuit 100.
  • the error detection circuit 208a detects a system failure from the difference between the current value acquired by the output acquisition circuit 204a and the current value acquired by the output acquisition circuit 204b.
  • the error detection circuit 208b also detects a system failure from the difference between the current value acquired by the output acquisition circuit 204a and the current value acquired by the output acquisition circuit 204b.
  • the main control circuit 100 acquires the input of the hand switch 22. Then, the main control circuit 100 inputs a target value corresponding to the input of the hand switch 22 to the output generation circuit 206 of the output control circuit 102 via the communication circuit 202 a of the output control circuit 102.
  • the output generation circuit 206 generates electric power for driving the treatment instrument 10 according to the deviation between the current value of the physical quantity (for example, current) acquired by the output acquisition circuit 204a and the target value. Thereby, energy corresponding to the input of the hand switch 22 is generated in the treatment instrument 10. Then, the subject is treated.
  • the physical quantity for example, current
  • the error detection circuit 208a and the error detection circuit 208b detect the presence or absence of a system failure. That is, the error detection circuit 208a detects a system failure from the difference between the current value of the physical quantity (for example, current) acquired by the output acquisition circuit 204a and the current value of the physical quantity acquired by the output acquisition circuit 204b. The error detection circuit 208b also detects a system failure from the difference between the current physical quantity value acquired by the output acquisition circuit 204a and the current physical quantity value acquired by the output acquisition circuit 204b.
  • the error detection circuit 208a detects a system failure from the difference between the current value of the physical quantity (for example, current) acquired by the output acquisition circuit 204a and the current value of the physical quantity acquired by the output acquisition circuit 204b.
  • the output acquisition circuits 204a and 204b acquire physical quantities at the same location. Therefore, normally, the value of the physical quantity acquired by the output acquisition circuit 204a and the value of the physical quantity acquired by the output acquisition circuit 204b show the same value. Therefore, it is possible to detect a system failure based on whether there is a difference between the physical quantity value acquired by the output acquisition circuit 204a and the physical quantity value acquired by the output acquisition circuit 204b.
  • the error detection circuit 208a outputs an error notification indicating that a failure has been detected to the main control circuit 100 when a failure in the system is detected.
  • the error detection circuit 208b outputs an error notification indicating that a failure has been detected to the main control circuit 100.
  • the main control circuit 100 stops the operation of the output control circuit 102 when an error notification is input from at least one of the error detection circuit 208a and the error detection circuit 208b.
  • a plurality of circuit areas are provided in one output control circuit 102. Also, in each circuit area, a failure detection mechanism of the same configuration that detects a system failure based on the physical quantity detected by the output detection circuit of the same configuration (in the example of the figure, an output acquisition circuit, an error detection circuit, a communication Circuit).
  • a fault detection mechanism with the same configuration can be easily designed. For this reason, it is possible to increase the redundancy of failure detection while relaxing the design accuracy.
  • cost and space can be reduced.
  • the load on the main control circuit 100 is reduced.
  • the main control circuit 100 and the output detection are different from the case where the failure detection mechanism is provided in the main control circuit 100 to achieve duplication.
  • a communication line with the circuit 104a or 104b becomes unnecessary. That is, only the communication line between the main control circuit 100 and the output control circuit 102 is sufficient.
  • the number of communication interfaces can be increased as compared with the case where the main control circuit 100 is provided with a failure detection mechanism and duplexed. It is possible to reduce.
  • circuit area 200a and the circuit area 200b are physically and functionally separated so as not to be affected by the failure of the circuit areas. For this reason, even if the failure detection mechanism itself in one circuit area fails, the failure does not affect the failure detection mechanism in the other circuit area. For this reason, it is possible to detect a system failure using the other failure detection mechanism. Thereby, it is possible to further increase the redundancy of failure detection.
  • the number of circuit areas is two. However, the number of circuit areas may be three or more. In this case, by providing a failure detection mechanism in each circuit area, the failure detection mechanism can be multiplexed more than triple. Even in this case, the output generation circuit 206 may be provided in one circuit area. Further, when the failure detection mechanism is tripled or more, it may be configured such that the presence or absence of a system failure is determined by the majority of the outputs of the plurality of failure detection mechanisms. The system may be configured to determine that the system has failed when a failure of the system is detected by one failure detection mechanism.
  • the technique of the present embodiment can be applied to treatment systems other than the ultrasonic treatment system.
  • the configuration of the failure detection mechanism is appropriately selected according to the type of energy used in each treatment system.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Otolaryngology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un dispositif d'alimentation électrique comprenant des circuits de détection de sortie (104a, 104b), un circuit de commande de sortie (102), et un circuit de commande principal (100). Le circuit de commande de sortie (102) est doté d'une pluralité de régions de circuit (200a, 200b). Chacune des régions de circuit (200a, 200b) présente un mécanisme de détection de défaut qui est doté d'un circuit d'acquisition de sortie (204a, 204b), un circuit de détection d'erreur (208a, 208b), et un circuit de communication (202a, 202b). L'une des régions de circuit comprend en outre un circuit de génération de sortie (206) qui produit de l'énergie électrique servant à générer de l'énergie destinée à être utilisée dans une unité de traitement.
PCT/JP2016/054894 2016-02-19 2016-02-19 Système de traitement, dispositif d'alimentation électrique et circuit de commande de sortie WO2017141427A1 (fr)

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PCT/JP2016/054894 WO2017141427A1 (fr) 2016-02-19 2016-02-19 Système de traitement, dispositif d'alimentation électrique et circuit de commande de sortie

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PCT/JP2016/054894 WO2017141427A1 (fr) 2016-02-19 2016-02-19 Système de traitement, dispositif d'alimentation électrique et circuit de commande de sortie

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139546A (en) * 1997-10-06 2000-10-31 Somnus Medical Technologies, Inc. Linear power control with digital phase lock
JP2006506172A (ja) * 2002-11-19 2006-02-23 コンメド コーポレイション 電気外科用発生器および出力電力を照合確認する方法
US20160000495A1 (en) * 2014-05-16 2016-01-07 Applied Medical Resources Corporation Electrosurgical system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6139546A (en) * 1997-10-06 2000-10-31 Somnus Medical Technologies, Inc. Linear power control with digital phase lock
JP2006506172A (ja) * 2002-11-19 2006-02-23 コンメド コーポレイション 電気外科用発生器および出力電力を照合確認する方法
US20160000495A1 (en) * 2014-05-16 2016-01-07 Applied Medical Resources Corporation Electrosurgical system

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