JP4040914B2 - Ultrasonic surgical device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrasonic surgical apparatus that performs an operation using ultrasonic waves.
[0002]
[Prior art]
As prior arts, there are JP-A-4-158856 and JP-A-9-38098. In Japanese Patent Laid-Open No. 4-158856, handpieces are identified in order to provide an ultrasonic surgical apparatus that can be used with a common drive device with a wide variety of handpieces and probes according to treatment and surgical applications. And a signal transmission means for connecting to the handpiece and the ultrasonic drive device detachably connected to each other, and a means for discriminating the identification signal by the ultrasonic drive device. Control is performed accordingly.
[0003]
In Japanese Patent Laid-Open No. 9-38098, in order to provide an ultrasonic surgical apparatus that can easily use an electric knife and an ultrasonic knife, respectively, an ultrasonic drive is used to determine whether a high-frequency current is applied to the handpiece. The apparatus is provided with an electric knife signal detection circuit, and as a result of the detection circuit, control is performed so as not to supply ultrasonic energy to the handpiece.
[0004]
In this way, by providing identifiers to the handpieces to perform control specific to each handpiece, and even when used in combination with an electric knife, the technology to turn off the ultrasonic output to the handpiece according to the electric knife signal is super This is a known technique in a sonic surgical apparatus.
[0005]
In general, when the ultrasonic transducer provided in the handpiece deteriorates, the ultrasonic transducer is disconnected, or the connector contact with the ultrasonic driving device is poor, the ultrasonic transducer is started at the start of ultrasonic output. It is known that the distortion is superimposed on the electric signal supplied to the ultrasonic transducer and detected as a noise signal by the electric knife signal detection circuit.
[0006]
[Problems to be solved by the invention]
However, in the configuration of Japanese Patent Laid-Open No. 4-158856, when high-frequency noise due to the high-frequency current of the electric knife is conducted to the handpiece, the high-frequency noise may be superimposed on the identification signal of the handpiece. As a result, there is a possibility of discriminating it from an erroneous handpiece.
[0007]
Further, in the configuration of Japanese Patent Laid-Open No. 9-38098, as soon as the high frequency current of the electric knife is conducted to the handpiece, the connection line between the ultrasonic driving device and the handpiece is cut off, and the ultrasonic output is prohibited.
[0008]
Therefore, even if high-frequency noise is transmitted at a small level that does not hinder normal operation conditions, including noise other than electric scalpels, ultrasonic output is prohibited, and surgery using an ultrasonic surgical device is prohibited. There was a drawback that the progress could be complicated.
When the handpiece is damaged, deteriorated, or defective, it is necessary to prohibit ultrasonic output and replace it with a normal ultrasonic transducer.
[0009]
(Object of invention)
The present invention has been made in view of the above problems, and an object of the present invention is to operate an ultrasonic surgical apparatus in an ultrasonic surgical apparatus that can be used together as an electric knife even if noise due to a high-frequency current or the like is conducted to the electric knife. It is an object of the present invention to provide an ultrasonic surgical apparatus capable of performing a smooth treatment without deteriorating the performance.
Another object of the present invention is to provide an ultrasonic surgical apparatus that can be realized in a small size and at a low cost.
[0010]
[Means for Solving the Problems]
The ultrasonic surgical apparatus of the present invention isA plurality of types of handpieces that can be energized with a high-frequency current and have built-in ultrasonic transducers, an ultrasonic drive device that drives by supplying power to the ultrasonic transducers, and a plurality of types of handpieces. In an ultrasonic surgical apparatus having an identifier determination means for identifying the identifier, a noise determination means for detecting noise of a predetermined level or more, a processing means for calculating the result of the noise determination means,Clocking means for starting the clocking of a predetermined time when the processing means calculates the noise of the predetermined level or higher;A first blocking means for prohibiting output to the ultrasonic transducer and a second blocking means for stopping the function of the identifier determination means, and the processing meansWhen the noise exceeding the predetermined level is calculated and the predetermined time is reached after the predetermined time is started in the time measuring means,Control means for controlling the operation of the first and second shut-off means is formed.It is characterized by that.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
1 to 9 relate to a first embodiment of the present invention, FIG. 1 shows a configuration of an ultrasonic surgical system including the first embodiment, and FIG. 2 shows an internal configuration of an ultrasonic drive device. 3 shows the circuit configuration of the noise determination means, FIG. 4 shows the circuit configuration of the identifier and identifier determination means, FIG. 5 shows the circuit configuration of the processing means, and FIG. 6 shows an operation explanatory diagram of the processing means. 7 shows the configuration of the identifier and identifier judging means in the modified example, FIG. 8 shows the circuit configuration of the processing means in the modified example, and FIG. 9 is an explanatory diagram of the operation of the processing means in the modified example.
[0012]
As shown in FIG. 1, an ultrasonic surgical system 1 includes ultrasonic handpieces 2 </ b> A to 2 </ b> E as ultrasonic treatment tools each including an ultrasonic transducer that performs treatment on a living body with ultrasonic waves and the like. The ultrasonic driving device 3 that supplies a driving signal (driving power) for driving the ultrasonic transducer by connecting the sonic handpieces 2A to 2E, and water supply to the connected ultrasonic handpieces 2D and 2E A high-frequency hand piece as a high-frequency treatment instrument (also referred to as an electric scalpel) that performs a treatment using a high-frequency current, and a water-feed suction device 4 that performs suction, ultrasonic handpieces 2B, 2C, and 2E that can also perform a treatment using a high-frequency current The high frequency power supply device 6 for supplying high frequency current to 5A and 5B, and the ultrasonic drive device 3, the water supply / suction device 4, and the high frequency power supply device 6 are connected to Wave output, water supply and suction, and a footswitch 7, 8 and 9 for performing ON / OFF of the high-frequency output.
[0013]
In addition, a water pump 11 is attached to the front of the water suction device 4, for example, and this water pump 11 is connected to a physiological saline bottle 12 containing physiological saline through a tube. The water pump 11 is connected to, for example, ultrasonic handpieces 2D and 2E through a water tube 13.
[0014]
Further, the ultrasonic handpieces 2D and 2E are connected to a suction pump (not shown) inside the water feeding / suction device 4 through the suction tube 14, and suck the emulsified tissue when the ultrasonic handpieces 2D and 2E are used. It can be discharged out of the body.
[0015]
Further, the high frequency power supply device 6 is connected to the counter electrode plate 15, and when the treatment is performed by the monopolar high frequency hand piece 5 </ b> B, the high frequency current is fed back by the counter electrode plate 15. The high frequency hand piece 5A is a bipolar high frequency hand piece.
[0016]
In this ultrasonic surgical system 1, ultrasonic handpieces 2 </ b> A to 2 </ b> E having various shapes and characteristics are detachably connected to the ultrasonic driving device 3 so that appropriate treatment can be easily performed according to the treatment application. Can be used.
[0017]
Specifically, the ultrasonic handpiece 2A is an ultrasonic trocar that performs a treatment to form a hole for insertion into a living body when performing laparoscopic surgery.
The ultrasonic handpiece 2B is an ultrasonic scissor that performs a treatment for coagulating, incising, and peeling the living body.
The ultrasonic handpiece 2C is an ultrasonic hook that performs a treatment for coagulating, incising, and peeling the living body.
[0018]
The ultrasonic handpiece 2D is an ultrasonic suction handpiece that performs a treatment for emulsifying and sucking a living body, particularly brain cells.
The ultrasonic handpiece 2E is an ultrasonic suction handpiece that performs a treatment for emulsifying and sucking a living body, particularly an abdominal organ such as the liver.
[0019]
These ultrasonic handpieces 2A to 2E are provided with control SWs 16a to 16e, respectively, which can control ultrasonic output and ON / OFF of a water supply function to be described later, and can switch setting values. is there.
Further, the ultrasonic handpieces 2A to 2E are connected to the ultrasonic driving device 3 by a signal line 17 for transmitting an ultrasonic driving signal and the like.
[0020]
The ultrasonic drive device 3 and the water supply / suction device 4 are connected by a communication cable 18 so that communication data can be transferred in order to link the control of both devices.
The ultrasonic handpieces 2B, 2C, and 2E are connected to the high-frequency power supply device 6 by an active cord 19 so that the high-frequency current can be supplied to the ultrasonic handpieces 2B, 2C, and 2E that can pass these high-frequency currents. Yes.
[0021]
That is, the ultrasonic handpieces 2B, 2C, and 2E have a function of a high-frequency treatment instrument (electric knife) capable of performing treatment by energizing a high-frequency current in addition to the function of ultrasonic treatment using ultrasonic waves. Therefore, the active cord 19 is detachably connected to the high frequency power supply device 6.
[0022]
FIG. 2 shows the internal configuration of the ultrasonic driving device 3.
The control means 21 for performing overall control and generating the ultrasonic drive signal is connected to the amplification means 22, and the ultrasonic drive signal generated by the ultrasonic drive signal generation means 21 a inside the control means 21 is the amplification means 22. Power amplification.
[0023]
The transmission line of the ultrasonic drive signal amplified by the amplification means 22 is turned on / off, that is, the voltage is stepped up or down via the cutoff means 23 constituted by a switch or the like for connecting / cutting the transmission line. It is connected to the primary side of an insulation transformer 24 as a power conversion means for insulation.
[0024]
The secondary side of the insulating transformer 24 is connected to an ultrasonic transducer (hereinafter simply abbreviated as transducer) 25 of an ultrasonic handpiece 2I (I = A to E). The ultrasonic handpiece 2I has a built-in vibrator 25, a control switch (abbreviated simply as SW in FIG. 2) 16i (i = a to e), and an identifier 26 for identifying each ultrasonic handpiece 2I. It is.
[0025]
The secondary side of the insulating transformer 24 is connected to the input terminal of the noise judging means 27 for judging whether noise is mixed from the level of the high frequency signal conducted to the ultrasonic handpiece 2I connected to the ultrasonic driving device 3. Is done.
[0026]
The output signal of the noise determination unit 27 is input to a processing unit 28 that performs processing according to the result of the noise determination unit 27, and the processing unit 28 performs ON / OFF control of the blocking unit 23.
[0027]
Specifically, when the processing unit 28 that performs processing according to the result of the noise determination unit 27 detects noise of a predetermined level or higher, the processing unit 28 turns off the blocking unit 23 after a predetermined time and prohibits ultrasonic output. That is, when noise is detected, it is not turned off immediately but turned off after a certain time. And when performing ultrasonic treatment in the case of immediately turning OFF, the operation which pushes an output switch is unnecessary, and operativity is ensured.
[0028]
Further, the ultrasonic drive device 3 includes an SW determination unit 29 that determines an ON / OFF signal due to the operation of the foot SW 7 and transmits it to the control unit 21. The SW determination unit 29 is a control SW operation signal generated by the control SW 16i. And the determination result is also transmitted to the control means 21.
[0029]
Further, the ultrasonic drive device 3 is provided with a communication unit 31 connected to the control unit 21, and transmits / receives information related to the operation of the water feeding / suction device 4 as necessary. In particular, an ON / OFF signal of the foot SW8 is transmitted to the SW discriminating means 29 so that the ultrasonic output can be interlocked.
[0030]
Further, the ultrasonic drive device 3 is provided with identifier determination means 32 for determining the identifier 26 provided in the connected ultrasonic handpiece 2I, and the determination result turns the transmission line ON / OFF. It is connected to the control means 21 via the gate means 33.
[0031]
The gate means 33 is controlled to be turned on / off by the processing means 28. That is, the processing means 28 controls ON / OFF of the gate means as well as ON / OFF control of the blocking means 23. When the gate unit 33 is turned off, the identification by the identifier determination unit 32 is prohibited and the handpiece is prevented from being erroneously identified by noise.
[0032]
Further, the ultrasonic drive device 3 is provided with a panel 34 on the front surface thereof, for example, for displaying various information such as output settings of the ultrasonic drive device 3 and for changing the output settings. When there is a setting change input, the signal is transmitted to the control means 21. Further, the panel 34 displays the changed contents and the like under the control of the control means 21.
[0033]
The ON / OFF signal generated by the operation of the control SW 16i provided on the ultrasonic handpiece 2I shown in FIG. 2 is transmitted to the SW determination means 29, and an ultrasonic output and a control signal to the water feeding / suction device 4 are generated as necessary. And communicate.
[0034]
In addition, when an ultrasonic drive signal is applied to the vibrator 25 incorporated in the ultrasonic handpiece 2I via the insulating transformer 24, the ultrasonic drive electric energy is converted into mechanical vibration (acoustic vibration) energy. Thus, the ultrasonic energy is transmitted to the distal end side of the ultrasonic hand piece 2I, and the vibration energy is applied to the living tissue to be treated at the portion where the distal end abuts, so that treatment such as coagulation or incision can be performed.
[0035]
In addition, when the ultrasonic handpiece 2I is connected to the ultrasonic driving apparatus 3, the ultrasonic driving device 3 determines the identifier 26 by the identifier determining means 32, and what kind of ultrasonic handpiece 2I is connected. Whether it is a handpiece is transmitted to the control means 21 so that the control means 21 can perform control suitable for each type of handpiece to which it is connected.
[0036]
The ultrasonic handpiece 2I shown in FIG. 2 is shown as not having the function of a high-frequency treatment instrument, but in the case of having the function of a high-frequency treatment instrument, an electrode that conducts a high-frequency current to the tip side thereof It has the function of.
[0037]
FIG. 3 shows a circuit example of the noise judgment means 27.
In this noise judgment means 27, the input signal is divided by the capacitor 41 and the capacitor 42, the AC signal (specifically, the high frequency signal) appearing on the capacitor 42 is detected by the detector 43 using a diode, and the signal detected by the capacitor 44 is detected. A peak detection method is used to obtain the peak wave by charging.
[0038]
The peak wave passes through the buffer 45, and the output signal of the buffer 45 is output to the processing means 28 side as the output of the noise judgment means 27.
FIG. 4 shows a specific circuit example of the identifier 26 and the identifier determination means 32.
[0039]
The identifier 26 is composed of electronic elements as shown in 26A to 26D. Specifically, it is constituted by a resistance means shown in 26A, a capacitance means of 26B, an induction means of 26C, a semiconductor means of 26D, etc., and the value can be changed according to the type so that identification can be made.
[0040]
On the other hand, the identifier determination means 32 has a configuration described below.
The signal output of the oscillation source 46 is applied to an insulating means, that is, one end on the primary side of an insulating transformer 47 that is electrically insulated and impedance-converted, and an identifier 26 is connected to the secondary side.
[0041]
The resistance 48 connected to the other end of the primary side of the insulating transformer 47 and the impedance of the resistor 48 when the insulating transformer 47 by the identifier 26 connected to the secondary side of the insulating transformer 47 is inserted. The AC signal of the transmission source is divided by resistance (impedance).
[0042]
The AC signal divided by the resistor 48 is rectified by a rectifier by the semiconductor bridge 49. Further, the rectified signal is charged by the capacitor 50.
The voltage charged in the capacitor 50 is output through the buffer 51. In this case, although not shown in the drawing, the result output from the buffer 51 is obtained by comparing / calculating which handpiece corresponds to the control unit 21 according to the voltage value. Can be done.
[0043]
FIG. 5 shows a circuit example of the processing means 28.
The output signal of the noise judging means 27 (through the buffer 45) is input to one end of the comparator 52 that compares the voltage data.
[0044]
A reference voltage from the reference voltage source 53 is applied to the other end of the comparator 52, and voltage data transmitted from the buffer 45 of the noise determination unit 27 is compared with the reference voltage by the comparator 52. Then, the comparison result is input from the input terminal B of the counter 54.
A transmission signal from the oscillation source 55 is input to the input terminal A of the counter 54.
[0045]
That is, the counter 54 receives the output signals from the oscillation source 55 and the comparator 52, and transmits a control signal for turning off each of the cutoff means 23 and the gate means 33 with a time delay based on the counting result of the counter 54.
[0046]
FIG. 6 shows a time chart of an operation example of the processing means 28.
The counter 54 receives the clock of the oscillation source 55 at the input terminal A, the comparison result from the comparator 52 is input to the input terminal B, and the result of the counter 55 is output from the output terminal C.
In the present embodiment, the output result is switched when the counter 54 counts 10 clocks.
[0047]
In the period D, the comparison result of the comparator 52 changes in a short period, a down edge occurs before the counter 54 counts 10 clocks, and the count number of the counter 54 is reset.
[0048]
On the other hand, in the period E, the comparison result of the comparator 52 is inverted for a certain period, the counter 54 counts 10 clocks, and the counter 54 transmits a control signal for turning off the blocking means 23 and the gate means 33.
[0049]
The effect | action by such a structure is demonstrated.
According to this configuration, when high-frequency noise due to the use of the electric knife 5A or 5B is conducted to the handpiece 2I side and further mixed into the ultrasonic driving device 3, the level of the peak value of the noise is determined as noise. The peak value is detected by the means 27, and the peak value is compared with the reference voltage by the processing means 28. If the level exceeds the reference voltage, the clock of the oscillation source 55 is counted by the counter 54. A control signal for turning off the lines of the blocking means 23 and the gate means 33 is output.
That is, when noise of a predetermined level or more is detected, the lines of the blocking means 23 and the gate means 33 are turned off with a time delay.
[0050]
On the other hand, when high frequency noise due to the use of the electric knife 5A or 5B is conducted to the handpiece 2I side and further mixed into the ultrasonic driving device 3, the level of the noise is a level that does not hinder normal operation. Then, the peak value becomes equal to or lower than the reference voltage of the processing unit 28, and the treatment can be continued without turning off the blocking unit 23 and the gate unit 33.
[0051]
Therefore, this embodiment has the following effects.
Even if high-frequency noise due to an electric knife or the like is conducted and the high-frequency noise due to the high-frequency current of the electric knife is superimposed on the identification signal of the handpiece, the control means 21 causes the wrong hand to shut off the transmission line by the gate means 33. It is not identified as piece 2I.
[0052]
Further, even if a high-frequency current of the electric knife is conducted to the handpiece 2I, the shut-off means 23 is controlled to be turned off after a predetermined time, so that malfunction due to noise can be prevented.
In addition, if a small level of high-frequency noise that does not interfere with normal operation, including noise other than electric scalpel, is conducted, the operation of the surgical operation using the ultrasonic surgical device is not prohibited without prohibiting ultrasonic output. The treatment can be continued smoothly without delay.
[0053]
Furthermore, this embodiment can be configured with inexpensive passive electrical components. Further, it is not necessary to provide a special means on the handpiece side, and the handpiece does not increase in size. Therefore, the entire ultrasonic surgical apparatus can be made small and inexpensive.
[0054]
In the above embodiment, when noise of a predetermined level or higher is detected, the counter 54 is used to delay the time and the shut-off means 23 and the gate means 33 are controlled to be turned off. However, the timer is activated. Then, it may be controlled to turn off the blocking means 23 and the gate means 33 after the time set by the timer.
[0055]
FIG. 7 shows a modification of the identifier 26 and the identifier judging means 32.
The identifier 26 is composed of a semiconductor IC 56. Specifically, the internal information (code) of the semiconductor IC 56 that constitutes the identifier 26 is changed according to the type of the handpiece 2I that is configured by a PLD (programmable, logic, device), a memory, and the like and that includes the identifier 26. It is possible to identify from the information.
[0056]
The identifier determination unit 32 includes a communication IC 57 that can communicate with the semiconductor IC 46, and performs identification from information to be communicated.
Further, the communication IC 57 and the semiconductor IC 56 communicate with each other via a photocoupler 58 in order to ensure electrical insulation.
The operation of this modification will be described.
[0057]
The difference from the above embodiment is that the semiconductor IC 56 and the communication IC 57 have a control line and a data line, perform parallel communication or serial communication, and transmit the determined result to the control means 21.
[0058]
This modification has the following effects.
In addition to the above-described embodiment, by using the semiconductor IC 56 and the communication IC 57, it becomes possible to exchange much more information than that constituted by passive electrical components. Therefore, the present invention is not limited to the case where the identification information is written, and the type, characteristics, etc. of the handpiece incorporating the identification information can also be written. Also, it can be recorded as control information that does not require conversion into information that can be controlled by the control means 21 side.
In addition, since logic data is exchanged, it is not affected by component variations, temperature characteristics, or the like.
[0059]
FIG. 8 shows a modification of the processing means 28.
The voltage data transmitted through the buffer 45 of the noise determination unit 27 is input to the integration unit 59 that integrates and is integrated.
[0060]
The integration result of the integration means 59 is input to one end of the comparator 60 to be compared. The reference voltage from the reference voltage source 61 is input to the other end of the comparator 60, and the voltage data transmitted from the integrating means 59 is compared with the reference voltage by the comparator 60.
[0061]
Based on the result of the voltage comparison of the comparator 60, a control signal for turning off the blocking means 23 and the gate means 33 is transmitted.
FIG. 9 shows a time chart of the operation by the processing means 28 of the modification.
[0062]
It is assumed that signals such as G, H, and I are input to the processing unit 28 as a result of the noise determination unit 27.
The integrating means 59 starts integration based on the input signal.
[0063]
When a signal such as the period G is input, the threshold value of the comparator 60, that is, the reference voltage is exceeded at almost the same timing (small time T1 delay in FIG. 9), so that the blocking means 23 and the gate means 33 are almost synchronized. A control signal that turns off each time is transmitted.
[0064]
In the period H, a signal is input for a long time, but since it is a minute signal, the integrated result does not exceed the threshold value, that is, the reference voltage. Do not send control signals.
[0065]
In period I, the signal is inputted intermittently, but the result of integration gradually increases, and as a result, after a predetermined time T2 has elapsed after the noise judgment means 27 detects the signal, the shut-off means 23 and the gate means 33 are turned off. A control signal is transmitted.
[0066]
As described above, according to the configuration of this modified example, not only the magnitude of high-frequency noise conducted by an electric knife or the like but also the integrated amount can be taken into account, so when a minute signal is mixed, it takes a long time to some extent. However, the lines of the blocking means 23 and the gate means 33 are not turned off.
[0067]
Further, since the integrated amount of the mixed signal is monitored, the delay time for turning off the lines of the blocking means 23 and the gate means 33 is appropriately changed depending on the magnitude of the mixed signal.
[0068]
This modification has the following effects.
Even if high-frequency noise caused by an electric knife or the like is conducted and the high-frequency noise caused by the high-frequency current of the electric knife is superimposed on the identification signal of the handpiece, the transmission means is connected to the transmission line by the gate means 33 if it is a fine signal having no problem. There is no interruption, and the indefinite period that is not monitored can be shortened.
[0069]
In addition, since the amount of high-frequency leakage current generated by high-frequency noise from an electric knife etc. is relatively integrated and monitored, if it is at a level that does not hinder the operation, ultrasonic output is not unavoidably prohibited. It does not affect the progress of the operation.
[0070]
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 10 shows the ultrasonic drive apparatus according to the second embodiment, FIG. 11 shows the configuration of the control means, and FIG. 12 shows the contents of control by the control means.
The ultrasonic drive device 3B in the second embodiment shown in FIG. 10 is different from the ultrasonic drive device 3 in the first embodiment in that the output result of the noise determination means 27 is passed through the A / D converter 62. To the control means 21.
[0071]
Further, the output result of the identifier determination means 32 is transmitted to the control means 21 via the A / D converter 63. Further, the control means 21 performs ON / OFF of the blocking means 23.
FIG. 11 shows the configuration of the control means 21 in the present embodiment.
[0072]
The control means 21 includes a CPU 64, a ROM 65, and a RAM 66. The data output from the A / D converter 62 and the A / D converter 63 is input to the CPU 64 and connected to the CPU 64 so that ON / OFF of the blocking means 23 can be controlled as a result after being processed by software.
[0073]
FIG. 12 shows a control flow of software of the control means 21.
In step S1, data of the A / D converter 62 is input. In the next step S2, the data of the A / D converter 62 input in step S1 is processed.
[0074]
Specifically, a plurality of pieces of continuously input data are stored, and arithmetic processing such as average value, integration, maximum value, minimum value, etc. is performed.
In the next step S3, the result calculated in step S2 is compared with the threshold value.
Here, the threshold value is set for each handpiece and for each ultrasonic output setting, and the time when the threshold value is exceeded is monitored, whether it is equal to or longer than a certain time, and compared.
[0075]
When the threshold value is not exceeded in step S3, the data of the A / D converter 63 is input as shown in step S4. In the next step S5, the data of the A / D converter 63 input in step S4 is processed.
[0076]
Specifically, a plurality of pieces of continuously input data are stored, and arithmetic processing such as average value, integration, maximum value, minimum value, etc. is performed. Then, the process returns to step S1.
[0077]
On the other hand, when it is determined in step S3 that the data has exceeded the threshold value, the process proceeds to step 6, and in this step S6, the cutoff means 23 is controlled to be turned off and ultrasonic output is prohibited. Further, the acquisition of the identification determination result from the identifier determination means 32 is prohibited.
This embodiment is basically the same operation as that of the first embodiment.
[0078]
The present embodiment has the following effects.
Since it is software control in addition to the first embodiment, its design and development can easily realize flexible and diverse control.
[0079]
Further, it is possible to easily change the control method by changing the software without changing the hardware. For example, when the control is performed as in the first embodiment, the value of the delay time or the like can be easily changed and set by the user or according to the use environment.
[0080]
In the above description, the ultrasonic treatment instrument (ultrasonic handpiece) having the function of a high-frequency treatment instrument for applying a high-frequency current has been described. However, in the present embodiment, a high frequency separate from the ultrasonic treatment instrument. Even in the case of a surgical device that is used in combination with a treatment tool (electric knife), it is also applicable to the case where high-frequency waves are mixed into the ultrasonic treatment tool and the ultrasonic drive device via the living body through the use of an electric knife. it can.
[0081]
In the above description, for example, in the first embodiment, the processing unit 28 is configured to control the blocking unit 23 and the gate unit 25 to be simultaneously turned OFF. However, the control varies depending on the noise level and the like. May be performed. The same applies to the second embodiment.
[0082]
Further, a modification of the second embodiment will be described with reference to FIG.
FIG. 13 shows a software control flow of the control means 21 shown in FIG.
[0083]
In the first step S11, the CPU 64 determines whether or not the ultrasonic output SW is turned on, that is, whether or not the foot SW7 for controlling the ultrasonic output is turned on via the switch judging means 29, and is not turned on. Wait until it is turned on.
[0084]
When the foot SW 7 is turned on, the CPU 64 controls the blocking means 23 to be turned on in the next step S12 in order to perform ultrasonic output. When the blocking means 23 is turned on, an ultrasonic drive signal is applied to the vibrator 25 of the ultrasonic handpiece 2I to generate an ultrasonic wave.
[0085]
In this state, the CPU 64 takes in the data of the A / D converter 62 to which the result of the output of the noise determination means 27 is input in the next step S13. Further, processing is performed on the data input via the A / D converter 62 input in the next step S14.
Specifically, a plurality of pieces of continuously input data are stored, and arithmetic processing such as average value, integration, maximum value, minimum value, etc. is performed.
[0086]
In the next step S15, the result calculated in step S14 is compared with the threshold value.
Here, the threshold value is set for each handpiece and for each ultrasonic output setting, and the time when the threshold value is exceeded is monitored, whether it is equal to or longer than a certain time, and compared.
[0087]
If the threshold value is not exceeded in step S15, the data of the A / D converter 63 to which the output data of the identifier determination means 32 is input is input as shown in step S16. In the next step S17, the data inputted through the A / D converter 63 inputted in step S16 is processed.
Specifically, a plurality of pieces of continuously input data are stored, and arithmetic processing such as average value, integration, maximum value, minimum value, etc. is performed. Then, the process returns to step S11.
[0088]
On the other hand, if it is determined in step S15 that the data has exceeded the threshold value, the process proceeds to step 18, and in this step S18, the cutoff means 23 is controlled to be turned off and the ultrasonic output is temporarily stopped.
[0089]
In this modification, control is performed to turn off the blocking means 23 in step S18, and then the process proceeds to step S19. In step S19, after controlling to turn off the blocking means 23 in step S18, the CPU 64 determines whether or not a predetermined time has elapsed.
[0090]
When a predetermined time or more has elapsed, a series of processing ends. On the other hand, if the predetermined time has not elapsed, the process returns to step S15 to determine whether the threshold is exceeded. Then, the process proceeds to step S16 or step S18 depending on the determination result.
[0091]
In the second embodiment and its modification, it is needless to say that the processing can be selected for each connected handpiece, and that all parameters such as arithmetic processing contents and time can be set independently. .
[0092]
As an operation according to this modification, even if the ultrasonic output is temporarily stopped by the high frequency noise, the high frequency noise becomes equal to or lower than the threshold before a certain time elapses, and the foot SW 7 is pressed to output the ultrasonic output. When the instruction signal is output (when the instruction signal for outputting the ultrasonic wave is active), the ultrasonic wave output is automatically resumed.
[0093]
Therefore, this modification has the following effects.
According to this modification, even if the ultrasonic output is temporarily stopped due to the high frequency noise, the foot SW 7 that instructs and controls the ultrasonic output is pressed when the high frequency noise is reduced before a lapse of a predetermined time. In this case, since the ultrasonic output is automatically returned, that is, output, the doctor can proceed with the operation without pressing the foot SW 7 again, and the operability can be improved while ensuring safety.
[0094]
[Appendix]
1. 2. The control unit according to claim 1, wherein the control unit includes a central processing unit, a ROM, and a RAM, and a converter that converts data between the control unit, a noise determination unit, and an identifier determination unit is interposed in at least one of the control unit. Ultrasonic surgical device.
[0095]
2. A plurality of types of handpieces that can be energized with a high-frequency current or can be used with a high-frequency treatment instrument that can energize a high-frequency current,
An ultrasonic driving device for supplying electric power to the ultrasonic vibrator and driving the ultrasonic vibrator;
Identifier judging means for identifying identifiers provided on each of the plurality of types of handpieces;
In an ultrasonic surgical apparatus having
Provide level detection means for detecting noise above a predetermined level,
An ultrasonic surgical apparatus characterized by comprising a control means for controlling whether or not to stop the output to the ultrasonic transducer and the identification judgment function of the identifier judgment means based on the result of the level detection means.
3. In Supplementary Note 2, when the level detection means detects a noise of a predetermined level or higher, the level detection means delays the output to the ultrasonic transducer and the identification judgment function of the identifier judgment means with a time delay.
[0096]
4). In Supplementary Note 2, when the level detection means detects noise of a predetermined level or higher, the level detection means delays the output to the ultrasonic transducer for a predetermined time with a time delay, and detects the noise of the predetermined level or higher after the predetermined time stop. Judge whether or not.
5. In Supplementary Note 4, when the level detection means determines that the noise of a predetermined level or higher is detected after stopping for the predetermined time, and the control means determines that the noise is less than the predetermined level, the control means When the output instruction signal for instructing output to the child is active, the output to the ultrasonic transducer is resumed.
[0097]
【The invention's effect】
As described above, according to the present invention, a plurality of types of handpieces that can be energized with a high-frequency current and incorporate an ultrasonic transducer,
An ultrasonic driving device for supplying electric power to the ultrasonic vibrator and driving the ultrasonic vibrator;
Identifier judging means for identifying identifiers provided on each of the plurality of types of handpieces;
In an ultrasonic surgical apparatus having
A noise determination means for detecting noise above a predetermined level;
Processing means for computing the result of the noise determination means;
First blocking means for prohibiting output to the ultrasonic transducer and second blocking means for stopping the function of the identifier determination means,
Since the control means for controlling the operation of the first and second shut-off means is formed according to the result of the processing means, when high-frequency noise is conducted and mixed in the ultrasonic driving device, the noise judgment means and processing For example, after a certain period of time or after a certain amount of power is input, the first shut-off means is turned off to prohibit ultrasonic output and the second shut-off means is turned off to stop the detection processing of the handpiece identifier judging means Thus, smooth control can be performed without deteriorating operability by enabling control.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an ultrasonic operation system including a first embodiment of the present invention.
FIG. 2 is a block diagram showing an internal configuration of the ultrasonic driving device.
FIG. 3 is a circuit configuration diagram of noise determination means.
FIG. 4 is a circuit configuration diagram of an identifier and identifier determination means.
FIG. 5 is a circuit configuration diagram of processing means.
FIG. 6 is a timing chart for explaining operations by the processing means.
FIG. 7 is a configuration diagram of identifiers and identifier determination means in a modified example.
FIG. 8 is a circuit configuration diagram of processing means in a modification.
FIG. 9 is a timing chart for explaining the operation of the processing means in the modification.
FIG. 10 is a block diagram showing an internal configuration of an ultrasonic driving device according to a second embodiment of the present invention.
FIG. 11 is a block diagram illustrating a configuration of a control unit.
FIG. 12 is a flowchart showing a control operation by the control means.
FIG. 13 is a flowchart showing a control operation of a modification by the control means.
[Explanation of symbols]
1 ... Ultrasonic surgery system
2A ~ 2E ultrasonic handpiece ...
3. Ultrasonic drive device
4 ... Water suction device
5A, 5B ... high frequency handpiece
6 ... High frequency power supply
7-9 Foot switch
15 ... Counter electrode
16a to 16e ... Control SW
21 ... Control means
22: Amplifying means
23. Blocking means
24. Insulation transformer
25 ... (ultrasonic) vibrator
26 ... identifier
27. Noise judgment means
28: Processing means
29 ... SW judgment means
31 ... Communication means
32. Identifier determination means
33 ... Gate means
34 ... Panel

Claims (1)

Multiple types of handpieces that can be energized with high-frequency current and have an ultrasonic transducer
An ultrasonic driving device for supplying electric power to the ultrasonic vibrator and driving the ultrasonic vibrator;
Identifier judging means for identifying identifiers provided on each of the plurality of types of handpieces;
In an ultrasonic surgical apparatus having
A noise determination means for detecting noise above a predetermined level;
Processing means for computing the result of the noise determination means;
Clocking means for starting the clocking of a predetermined time when the processing means calculates the noise of the predetermined level or higher;
First blocking means for prohibiting output to the ultrasonic transducer and second blocking means for stopping the function of the identifier determination means,
When the processing means calculates the noise of the predetermined level or higher, and when the predetermined time has been reached after the time measuring means starts measuring the predetermined time, the first and second blocking means An ultrasonic surgical apparatus characterized in that a control means for controlling the operation is formed.

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