JP2009131466A - Smoke discharge controller, smoke discharge apparatus and endoscopic operation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a smoke discharge controller for discriminating noise from other apparatuses and high frequency noise by the output of a high frequency cautery apparatus and making a smoke discharge apparatus discharge smoke when detecting the high frequency noise from the high frequency cautery apparatus. <P>SOLUTION: The smoke discharge controller for controlling the smoke discharge apparatus for discharging the smoke generated by the high frequency cautery apparatus from the inside of an abdominal cavity is provided with a detection means for detecting the high frequency noise, a discrimination means for discriminating whether or not the high frequency noise is emitted from the high frequency cautery apparatus on the basis of the frequency of the detected high frequency noise, and a driving means for driving the smoke discharge apparatus on the basis of the discriminated result. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a smoke evacuation device when an induction cautery device is used.

  In recent years, devices that perform surgery using a high-frequency cautery device under the observation of an endoscope have been widely used. When a surgical operation is performed using such a high-frequency ablation device (also referred to as an electric scalpel device), degeneration of the living tissue proceeds, and smoke and mist (water vapor) are generated at the same time, which may obstruct the operator's observation field of view.

In such a case, a smoke exhaust device that discharges such smoke and mist in conjunction with the operation of the high-frequency cautery device is disclosed (for example, Patent Document 1 and Patent Document 2).
Patent Document 1 discloses an air supply device having a smoke exhaust function connected to an induction cautery device, and when the high frequency output switch of the induction cautery device is turned on, the ON signal is received and a preset output is received. An air supply device that increases the smoke emission operation time according to the value is disclosed.

Moreover, in patent document 2, it is an air supply apparatus which has the smoke exhaustion function which is not connected with the high frequency cauterization apparatus, Comprising: The high frequency noise of a high frequency cauterization apparatus is detected by a high frequency noise detection part, and it synchronizes with the output of a high frequency cauterization apparatus. An insufflation apparatus for exhausting smoke is disclosed. In this high frequency noise detection unit, the high frequency noise of the high frequency cautery device generated outside the insufflation device is received by the coil antenna, the high frequency noise induced in the coil antenna by the reception circuit is received, and the reception is received by the signal amplification circuit. The signal is amplified, and the high frequency noise amplified to an arbitrary signal level by the signal detection circuit is detected. This signal detection circuit detects a period (time) in which high-frequency noise is generated.
JP 2006-288553 A JP 2000-175931 A German utility model No. 9408486 specification

  The air supply device of Patent Document 1 needs to set the output value of the high-frequency cautery device in advance and detect the drive-on signal of the high-frequency output switch, so it can be realized in combination with products of other companies with different product specifications. There wasn't.

  By the way, although various output modes are provided in the high frequency cautery device, it is not easy to distinguish high frequency noise generated in those output modes from noise generated from other devices.

  In the cited document 2, the high frequency noise of the high frequency cauterization apparatus is detected by the high frequency noise detection part. However, since Patent Document 2 does not distinguish between high-frequency noise generated by the output of the high-frequency cautery device and noise generated from other devices, there is a risk of detecting noise other than high-frequency noise.

  In view of the above problems, the present invention discriminates noise from other devices and high-frequency noise due to the output of the high-frequency cautery device, and when high-frequency noise from the high-frequency cautery device is detected, causes the smoke exhauster to exhaust the smoke. A smoke control device is provided.

  A smoke control device for controlling a smoke exhaust device that discharges smoke generated by the high-frequency ablation device according to the present invention from the abdominal cavity is based on detection means for detecting high-frequency noise and the frequency of the detected high-frequency noise. It is characterized by comprising discrimination means for discriminating whether or not high-frequency noise is emitted from the high-frequency ablation device, and drive means for driving the smoke exhausting device based on the discrimination result.

  In the smoke emission control device, the determination unit extracts high frequency noise in a predetermined frequency band from the high frequency noise, and when the extracted high frequency noise is continuously detected for a predetermined time, the extracted high frequency noise is extracted from the high frequency noise. It is characterized in that it is determined as high frequency noise during operation of the high frequency cautery device.

In the smoke emission control device, the driving means drives the smoke emission device and also drives an insufflation device for supplying a predetermined gas into the abdominal cavity.
According to the present invention, there is provided a smoke evacuation device for discharging smoke generated by the high frequency ablation device from the abdominal cavity. The high frequency noise is detected based on the detection means for detecting high frequency noise and the frequency of the detected high frequency noise. And a drive unit that drives the smoke evacuation device based on the determination result.

  In the smoke evacuation device, the discrimination means extracts high-frequency noise of a predetermined frequency band from the high-frequency noise, and when the extracted high-frequency noise is continuously detected for a predetermined time, the extracted high-frequency noise is extracted from the high-frequency noise. It is determined that the noise is high-frequency noise during operation of the cautery device.

In the smoke evacuation device, the driving means drives the smoke evacuation device and drives an insufflation device for supplying a predetermined gas into the abdominal cavity.
An endoscopic surgery system having at least a high-frequency ablation device and a smoke evacuation device according to the present invention includes a detection unit that detects high-frequency noise, and the high-frequency noise is based on the detected frequency of the high-frequency noise. It is characterized by comprising a discriminating means for discriminating whether or not it has been discharged from the cautery device, and a driving means for driving the smoke exhausting device based on the discrimination result.

  In the endoscopic surgery system, the determination unit extracts high-frequency noise in a predetermined frequency band from the high-frequency noise, and when the extracted high-frequency noise is continuously detected for a predetermined time, the extracted high-frequency noise is extracted. It is discriminated as high-frequency noise during operation of the high-frequency cautery device.

  The endoscopic operation system further includes an insufflation apparatus, and the drive unit drives the inhalation apparatus and the inhalation apparatus.

  According to the present invention, it is possible to discriminate noise from other equipment and high-frequency noise due to the output of the high-frequency cautery device, and when the high-frequency noise from the high-frequency cautery device is detected, the smoke exhauster can exhaust the smoke. .

  FIG. 1 shows an endoscopic surgery system according to this embodiment. In FIG. 1, the endoscopic surgery system 1 includes a high-frequency cautery device 2, an antenna 3, an automatic smoke control device 4, a smoke exhaust device 5, and an insufflation device 6.

  A patient 7 lies on the operating table 8. A high-frequency treatment instrument insertion guide tube (first trocar) (not shown) for inserting a high-frequency treatment instrument into the abdominal cavity and the gas from the pneumoperitoneum are supplied into the abdominal cavity of the patient 7. A guide tube for an insufflation tube (not shown) (second trocar) and a guide tube for an inspiration tube (third trocar) (not shown) for sucking gas in the abdominal cavity are punctured.

  The high-frequency ablation device 2 uses the ablation electrode at the distal end of the high-frequency treatment instrument inserted into the first trocar to stop hemostasis at the treatment site of the affected area of the patient 7 or to remove the tissue. This is a device for supplying a high frequency to a high frequency treatment instrument. A counter electrode (not shown) for collecting the current generated from the ablation electrode is attached to the patient's back.

The insufflation apparatus 6 is an apparatus that supplies CO ₂ gas into the body cavity from an insufflation tube inserted into the second trocar in order to secure a space for treatment with respect to the visual field of the endoscope and the treatment site.
When the high-frequency cautery device 2 is driven to operate the high-frequency treatment tool on the affected area of the patient, the smoke exhaust device 5 operates the suction pump to discharge smoke generated in the abdominal cavity to the outside of the body, 3 is a device that sucks the gas in the body cavity from the intake tube inserted into the trocar 3.

The antenna 3 is an antenna that receives electromagnetic waves generated around the antenna. The antenna 3 is, for example, a loop antenna, but is not limited to this.
The automatic smoke control device 4 determines whether or not the electromagnetic wave received by the antenna 3 is a high frequency having a predetermined band and waveform, and controls the driving of the smoke exhaust device 5 and the inhalation device 6 based on the determination result. . That is, as a result of the determination, the automatic smoke exhaust control device 4 drives the smoke exhaust device 5 to suck the gas in the body cavity and maintain the pressure in the body cavity when the electromagnetic wave has a high frequency in a predetermined band. Therefore, the gas is supplied by operating the insufflation apparatus 6.

  The electrosurgical system includes a hard endoscope (not shown) that is inserted into the abdominal cavity of a patient, a TV camera that captures images of the body captured by the endoscope, a CCU (camera control unit), an endoscope. There is a light source device that supplies illumination light to 2.

  FIG. 2 is a conceptual hardware configuration diagram of the automatic smoke control apparatus 4 according to the present embodiment. The automatic smoke control device 4 includes a tuning circuit 11, an amplifier circuit 12 with a BPF, a voltage comparison circuit 13, a frequency detection circuit 14, a timer circuit 15, and a drive circuit 16.

  The tuning circuit 11, the amplifier circuit with BPF 12, the voltage comparison circuit 13, the frequency detection circuit 14, and the timer circuit 15 are based on the frequency of the high frequency noise detected by the antenna as the detection means, and the high frequency noise is generated from the high frequency cautery device. A discriminating means for discriminating whether or not it has been released is configured. The drive circuit 16 constitutes drive means for driving the smoke evacuation device based on the determination result. Thereby, the output of the high-frequency ablation device can be detected by discriminating between the high-frequency noise at the time of output of the high-frequency ablation device and the noise generated from other peripheral devices.

  The discriminating means extracts high-frequency noise in a predetermined frequency band from the high-frequency noise, and when the extracted high-frequency noise is continuously detected for a predetermined time, the extracted high-frequency noise is extracted during operation of the high-frequency ablation device. It can be determined that the noise is high frequency noise. Thereby, the high frequency noise at the time of operation | movement of a high frequency cautery apparatus can be pinpointed reliably.

  Further, the driving means can drive the smoke evacuation device and can drive an insufflation device that feeds a predetermined gas into the abdominal cavity. Thereby, the pressure in the abdominal cavity can be maintained.

  First, when the induction cautery device 2 is driven, electromagnetic waves are emitted from the induction cautery device 2. The electromagnetic wave emitted from the high-frequency cautery device 2 at the time of incision (300Ω, maximum 300 W) is generally a high frequency of about 200 K to 1200 KHz regardless of the manufacturer. This high frequency is received by the automatic smoke control device 4 using the antenna 3 installed around the high frequency cautery device 2.

  The tuning circuit 11 is an LC resonance circuit and generates a voltage by an LC resonance phenomenon. In this case, the tuning circuit 11 converts the high frequency received by the antenna 3 into a voltage by the LC resonance phenomenon.

  The amplification circuit 12 with BPF is an amplifier having a band-pass filter function that allows only a predetermined frequency band to pass. The amplifying circuit 12 with BPF removes a voltage corresponding to a frequency in an irrelevant band from the output voltage from the tuning circuit by a band bus filter function, and amplifies only a voltage corresponding to a frequency in a necessary band.

  The voltage comparison circuit 13 is a circuit that outputs a low level voltage when the input voltage exceeds the reference voltage. The voltage comparison circuit 13 compares the output voltage from the BPF-equipped amplifier circuit 12 with a reference voltage, and outputs a low level voltage when the reference voltage is exceeded.

  The frequency detection circuit 14 is a circuit that detects a target frequency by determining whether the number of pulses output during 1 ms from the voltage comparison circuit 13 is equal to or greater than a threshold value. The frequency detection circuit 14 includes, for example, a counter circuit 14a and a timer circuit (multivibrator) 14b. The timer circuit 14b is driven using the pulse output from the voltage comparison circuit 13 as a trigger, and outputs a high level voltage for 1 ms with one trigger (one pulse). The counter circuit 14a counts the output pulses from the voltage comparison circuit 13 while the output voltage from the timer circuit 14b is High, and outputs a High level voltage after counting 20 pulses.

  The timer circuit 15 is composed of, for example, a multivibrator. The timer circuit 15 is driven with the pulse output from the counter circuit 14a as a trigger, and outputs a high level voltage for 0.5 ms with one trigger (one pulse). Thereby, it is possible to detect a frequency equal to or higher than the threshold value in a continuous time of 0.5 seconds.

  The drive circuit 16 is a circuit that drives the target device based on the output of the timer circuit 15. As the drive circuit 16, for example, an open collector circuit can be used. Based on the drive control of the drive circuit 16, when the electromagnetic wave is a high frequency in a predetermined band, the smoke evacuator 5 sucks the gas in the body cavity and maintains the pressure in the body cavity. Supply.

Note that the automatic smoke control device 4 may be mounted on the smoke exhaust device 5 or the insufflation device 6 as an automatic smoke control circuit.
According to the present embodiment, it is possible to detect the output of the high-frequency cautery device by discriminating high-frequency noise at the time of output of the high-frequency cautery device from noise generated from other peripheral devices. Therefore, the generated high frequency can be determined without depending on the manufacturer of the high frequency cautery device. Furthermore, based on the detection result, the smoke evacuation device can be linked to perform smoke evacuation. In addition, air can be supplied in conjunction with an insufflation apparatus.

  The present invention is not limited to the above-described embodiment, and various configurations or embodiments can be taken without departing from the gist of the present invention.

1 shows an endoscopic surgery system in an embodiment of the present invention. The block diagram of the conceptual hardware of the automatic smoke control apparatus 4 in embodiment of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Endoscopic surgery system 2 High frequency ablation device 3 Antenna 4 Automatic smoke control device 5 Smoke exhaust device 6 Insufflation device 11 Tuning circuit 12 Amplification circuit with BPF 13 Voltage comparison circuit 14 Frequency detection circuit 14a Counter circuit 14b Timer circuit 15 Timer Circuit 16 Drive circuit

Claims (9)

A smoke control device for controlling a smoke exhaust device that discharges smoke generated by an induction cautery device from the abdominal cavity,
Detection means for detecting high frequency noise;
A discriminating means for discriminating whether or not the high-frequency noise is emitted from the high-frequency cauterization device based on the detected frequency of the high-frequency noise;
Driving means for driving the smoke evacuation device based on the determination result;
A smoke emission control device comprising: The discriminating means extracts high-frequency noise in a predetermined frequency band from the high-frequency noise, and when the extracted high-frequency noise is continuously detected for a predetermined time, the extracted high-frequency noise is extracted during operation of the high-frequency ablation device. It is discriminate | determined that it is a high frequency noise. The smoke control apparatus of Claim 1 characterized by the above-mentioned. 2. The smoke control apparatus according to claim 1, wherein the driving unit drives the smoke evacuation device and drives an insufflation device that supplies a predetermined gas into the abdominal cavity. A smoke exhaust device that discharges smoke generated by an induction cautery device from the abdominal cavity,
Detection means for detecting high frequency noise;
A discriminating means for discriminating whether or not the high-frequency noise is emitted from the high-frequency cauterization device based on the detected frequency of the high-frequency noise;
And a driving unit that drives the smoke exhausting device based on the determination result. The discriminating means extracts high-frequency noise in a predetermined frequency band from the high-frequency noise, and when the extracted high-frequency noise is continuously detected for a predetermined time, the extracted high-frequency noise is extracted during operation of the high-frequency ablation device. It is discriminate | determined that it is a high frequency noise. The smoke exhaust apparatus of Claim 4 characterized by the above-mentioned. 5. The smoke evacuation device according to claim 4, wherein the drive unit drives the smoke evacuation device and drives an insufflation device that supplies a predetermined gas into the abdominal cavity. An endoscopic surgical system having at least an induction cautery device and a smoke evacuation device,
Detection means for detecting high frequency noise;
A discriminating means for discriminating whether or not the high-frequency noise is emitted from the high-frequency cauterization device based on the detected frequency of the high-frequency noise;
Driving means for driving the smoke evacuation device based on the determination result;
An endoscopic surgery system comprising: The discriminating means extracts high-frequency noise in a predetermined frequency band from the high-frequency noise, and when the extracted high-frequency noise is continuously detected for a predetermined time, the extracted high-frequency noise is extracted during operation of the high-frequency ablation device. The endoscopic surgery system according to claim 7, wherein the endoscopic surgery system is identified as high-frequency noise. The endoscopic surgery system further includes an insufflation apparatus,
The endoscopic surgery system according to claim 7, wherein the driving unit drives the smoke evacuation device and drives the pneumoperitoneum device.

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