JP2004290516A - Surgery apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ultrasonic surgery apparatus in which both a high-frequency processing treatment using a high band radio wave current and an ultrasonic treatment can be employed without replacing instruments. <P>SOLUTION: The ultrasonic surgery apparatus 1 is constituted of a hand piece 10, a power supply unit 40, a water supply pump 81 and a suction device 82. Roughly classified, the power supply unit 40 is provided with an ultrasonic power supply 41, a radio wave power source 42, a control circuit 43, a displaying device 44, an operation device 45, a switch 46 and a matching circuit 47, and the water supply pump 81 and the suction device 82 are coupled to the control circuit 43. The ultrasonic power source 41 consists of an ultrasonic amplifier 51 for generating an ultrasonic electric current, and a filter 52 for preventing a malfunction caused by flow of the radio wave electric current or an increase in a leakage electric current. The radio wave power source 42 consists of a radio wave amplifier 61 for generating a radio wave electric current, and a filter 62 for preventing a malfunction caused by flow of the ultrasonic electric current or an increase in a leakage electric current. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a surgical apparatus capable of performing high-frequency treatment while performing ultrasonic treatment on a living tissue.
[0002]
[Prior art]
Conventionally, there are known apparatuses for ultrasonic treatment of living tissue by ultrasonic vibration of 20 kHz or higher, and there are two types.
[0003]
The first type of ultrasonic treatment apparatus is particularly called an ultrasonic aspirator. The ultrasonic aspirator has a hollow probe that vibrates ultrasonically and a sheath that covers other than the probe tip. By sending cooling water from between the probe and the sheath to the probe tip and sucking it from the probe lumen, The body tissue is crushed, emulsified and sucked by vibration.
[0004]
In addition, this ultrasonic aspirator utilizes the tissue selectivity of ultrasonic vibration and can selectively preserve blood vessels, hepatic ducts, nerves, and the like, so that it is particularly used for liver resection and brain tumor extraction.
[0005]
Here, tissue selectivity refers to the effect of treating tissues while preserving blood vessels and nerves, because elastic blood vessels and nerves are difficult to crush and fragile tissues such as fat and brain tumors are easy to crush. .
[0006]
The second type of ultrasonic treatment apparatus is called an ultrasonic coagulation / cutting apparatus. This can be further divided into two types.
[0007]
The first type of ultrasonic coagulation / cutting device performs coagulation by protein denaturation of a biological tissue using ultrasonic friction between a solid probe that ultrasonically vibrates and the biological tissue, and also uses a biological vibration using ultrasonic vibration. A tissue incision is performed.
[0008]
Such a first type of ultrasonic coagulation and incision apparatus can perform incision while suppressing bleeding. Here, protein denaturation indicates that a protein has a property of causing irreversible alteration and coagulation at a certain temperature or higher.
[0009]
The second type of ultrasonic coagulation / cutting device has a solid probe that vibrates ultrasonically and a jaw that is disposed at the probe tip and opens and closes with respect to the probe, and grips a living tissue between the probe and the jaw. Coagulation of biological tissue by protein denaturation using ultrasonic friction between the probe and biological tissue, and at the same time incision of biological tissue using probe and jaw gripping force (cutting force) and ultrasonic vibration is there.
[0010]
Such a second type of ultrasonic coagulation / cutting device can be separated while closing a blood vessel or a vessel, and is mainly used for endoscopic surgery. However, the second type of ultrasonic coagulation / cutting device is not used in brain surgery due to the structurally large outer diameter and the lack of tweezers.
[0011]
Some of these ultrasonic treatment apparatuses can perform a monopolar type high frequency treatment of about 0.5 MHz using a probe (or tip) as a discharge electrode (see, for example, Patent Document 1).
[0012]
Monopolar high-frequency treatment means that the discharge electrode that discharges to the living tissue is monopolar, the high-frequency treatment current is discharged to the living tissue, and the current passing through the inside of the living body is recovered from the diffusion electrode called the counter electrode plate. It is to cauterize.
[0013]
An apparatus capable of performing ultrasonic treatment and monopolar type high-frequency treatment is effective particularly for hemostasis of microvessels at the time of liver resection because the ultrasonic treatment and high-frequency treatment can be performed without replacing the equipment.
[0014]
However, the ultrasonic aspirator as described above supplies cooling water (saline) to the tip of the probe for the purpose of cooling the probe and sheath, and this cooling water is also applied to the target tissue. Is scattered. Furthermore, in general, a living tissue being treated often has a cut surface, and blood or body fluid is often stored.
[0015]
For this reason, in an apparatus that uses both the above-described ultrasonic treatment and treatment with a monopolar high-frequency current, the current flowing from the probe tip diffuses into a liquid having an electrolyte such as physiological saline, blood, or body fluid, It is also known that it may be difficult to treat tissue efficiently.
[0016]
On the other hand, it is known that the treatment with the bipolar high-frequency current has a characteristic that it is hardly affected by blood or body fluid. In this bipolar type high-frequency treatment, a high-frequency current is applied only to a target living tissue sandwiched between two discharge electrodes and cauterized.
[0017]
In addition, since treatment with a monopolar high-frequency current must collect the electric current discharged from the electrode through the human body, tissues other than the incineration site such as incineration site-other human body tissue-diffusion electrode (counter electrode plate) Current also flows. For this reason, there is no consensus on the flow of electric current through an important tissue where the nervous tissue called the brain is gathered. Bipolar high-frequency current treatment is performed using a treatment tool.
[0018]
However, it has not been realized because it is structurally difficult to combine a bipolar high-frequency current treatment function with an ultrasonic aspirator or ultrasonic coagulation / cutting device that does not use a jaw. For this reason, the ultrasonic treatment using the device of this type and the high-frequency treatment using the bipolar device have to be replaced. Especially in the field of neurosurgery where surgery is performed while magnifying a narrow surgical field with a microscope, replacement of the equipment leads to an extension of the operation time. Therefore, a high frequency that does not use a diffusion electrode (counter electrode) in this type of ultrasonic surgical device. There was a strong demand from brain surgeons to combine devices that can be used for treatment.
[0019]
Also, ultrasonic coagulation / dissection is performed by grasping the biological tissue between a probe that transmits ultrasonic vibration to the biological tissue and an opening / closing member that opens and closes the probe, and coagulating / dissecting the biological tissue by ultrasonic vibration. The device is mainly used in general surgery for hemostasis and cutting of blood vessels. Among them, the probe and the gripping member are electrically connected to each other and combined with the diffusion electrode, so that the probe can be switched to the bipolar of the gripping member, and the probe can be used by appropriately switching as the diffusion electrode or the gripping member as the diffusion electrode monopolar. There was a thing (for example, refer to patent documents 2). However, this form is possible because it has a gripping member.
[0020]
Since such a gripping member needs to absorb the ultrasonic vibration of the probe, a flexible material such as a heat-resistant resin is used for the gripping surface, and in order to use the gripping member as an electrode, a flexible member is used. At least a portion of the metal surface must be exposed to form an electrode, but if the metal surface interferes with the probe, the probe durability may be affected.
[0021]
In addition, there has been a high-frequency treatment apparatus that mainly uses an electromagnetic field effect and arc discharge due to a high-frequency radio wave current of 8 MHz to 60 MHz instead of a high-frequency current of about 0.5 MHz. This high-frequency treatment device using high-band radio-frequency current is a monopolar type, but does not require current recovery, does not flow current to human tissues other than the target tissue, does not require a diffusion electrode, and is ablated even in an electrolyte liquid such as blood. Because of the lack of performance, it was particularly effective in brain surgery devices (see, for example, Patent Document 3). However, the high-frequency treatment apparatus using high-band radio wave current has problems such as radiation from other than the probe tip and electrical interference with the ultrasonic surgical apparatus, and therefore, there is no combination with the ultrasonic surgical apparatus.
[0022]
In addition, in an ultrasonic transducer generally called a bolt-clamped Langevin type transducer, a front mass (horn), a rear mass (back mass), an electrode (terminal), and a piezoelectric element are used to prevent current leakage and leakage current. There are some cases in which an insulator is sandwiched between elements (for example, see Patent Document 4), or the whole is coated with an insulating agent (for example, see Patent Document 5), but these are only currents for driving an ultrasonic transducer. This is not a countermeasure against leakage current or leakage when a high-frequency current treatment is performed on a living tissue via a horn or a probe.
[0023]
[Patent Document 1]
Japanese Examined Patent Publication No. 6-42893 (pages 3-5 and 1-7)
[0024]
[Patent Document 2]
JP-A-8-299351 (page 3-5, FIG. 1-6)
[0025]
[Patent Document 3]
Japanese Patent No. 3245815 (page 4-8, FIG. 1-6)
[0026]
[Patent Document 4]
JP 10-429 A (page 2-3, FIG. 1-2)
[0027]
[Patent Document 5]
Japanese Patent Laid-Open No. 10-277483 (page 3, FIG. 2)
[0028]
[Problems to be solved by the invention]
Conventional high-frequency treatment devices using a high-band radio wave current of 8 MHz to 60 MHz are monopolar and particularly effective in brain surgery devices. However, radiation from other than the probe tip and electrical connection with ultrasonic surgery devices Due to problems such as interference, it could not be combined with an ultrasonic surgical device.
[0029]
Further, the conventional bolt-clamped Langevin type vibrator cannot prevent leakage current or leakage when performing high-frequency current treatment on a living tissue via a horn or a probe.
[0030]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a surgical apparatus in which a high-frequency treatment using a high-band radio wave current and an ultrasonic treatment can be used together without replacement of equipment.
[0031]
In addition, the present invention can be used in combination with high-frequency treatment and ultrasonic treatment using high-band radio wave current without replacement of the equipment, and simultaneously performing ultrasonic treatment and high-frequency treatment using high-band radio wave current, To provide a surgical apparatus capable of combining the effects of pulverization or emulsification of tissue by ultrasonic treatment, the effect of suction and tissue selectivity, and the coagulation or incision effect of high-frequency treatment using a high-frequency radio wave current. Objective.
[0032]
The present invention prevents the increase of leakage current and noise when using the high-band radio wave current, the malfunction and leakage of equipment, the release of electromagnetic waves that cannot be used for biological treatment, etc., and is highly reliable and efficient. An object of the present invention is to provide a surgical apparatus capable of performing high-frequency current treatment.
[0033]
An object of the present invention is to provide a surgical apparatus capable of interlocking the operations of an ultrasonic treatment and a high-frequency treatment using a high-band radio wave current in order to enhance the combined effect.
[0034]
The present invention intends to achieve both high-frequency treatment using a probe or a probe and a gripping member as an electrode and the durability of the probe in an apparatus having a gripping function.
[0035]
[Means for Solving the Problems]
In order to achieve the above object, the surgical apparatus according to claim 1, wherein a radio wave current generating unit capable of generating a high-band radio wave current that can be discharged to a living tissue, and the radio wave current generating unit generates the radio wave current generating unit. A long discharge electrode member that can be treated by discharging a radio wave current to the living tissue, and an ultrasonic wave that is connected to a proximal end portion of the discharge electrode member and can generate ultrasonic vibration capable of treating the living tissue A vibrator, drive signal generating means capable of generating a drive signal for driving the ultrasonic vibrator, and control means capable of controlling the drive signal generating means and the radio wave current generating means. It is characterized by that.
[0036]
The surgical apparatus according to claim 2 is connected to an ultrasonic transducer capable of generating ultrasonic vibration capable of treating a living tissue, an active terminal and a neutral terminal provided in the ultrasonic transducer, and the ultrasonic wave Drive signal supply means capable of supplying a drive signal for driving a vibrator, and a conductive member formed to be electrically connectable to the neutral terminal of the ultrasonic vibrator, and driven by the drive signal A probe mechanically coupled to the ultrasonic transducer to transmit the ultrasonic vibration from the ultrasonic transducer; and a conductive path of the neutral terminal to which the probe is electrically connected; A radio wave current supply means capable of supplying a high-band radio wave current that can be discharged to the probe via a conductive path, and the radio wave current generation means and the drive signal generation means can be controlled. Characterized by comprising a control means, a.
[0037]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
1 and 2 relate to a first embodiment of the present invention, FIG. 1 is a cross-sectional view showing a handpiece of an ultrasonic surgical apparatus, and FIG. 2 is a block diagram showing an outline of the overall configuration of the ultrasonic surgical apparatus. is there.
[0038]
(Constitution)
As shown in FIG. 1, the handpiece 10 has an ultrasonic transducer 11 inside.
[0039]
This ultrasonic transducer 11 is generally called a bolted Langevin type transducer in the form of an electrostrictive type. In other words, the ultrasonic vibrator 11 includes a plurality of PZT {piezoelectric ceramics obtained by mixing and sintering lead titanate (PbTiO3) and lead zirconate (PbZrO3)} 12 with vibrator active terminals 13 and vibrator neutral terminals 14. The horn 15 and the back mass 16 are clamped and assembled.
[0040]
In order to perform this fastening, for example, a tubular portion having a male screw portion (not shown) is provided on the proximal side of the horn 15, and this tubular portion includes the PZT 12, the vibrator active terminal 13, the vibrator neutral terminal 14, and the back mass 16. Is inserted into the female screw portion formed on the back mass 16 side of the suction cap 24.
[0041]
In addition, in order to prevent the leakage of ultrasonic current and radio current, which will be described later, the surface of the ultrasonic transducer 11 other than the portion that needs to be electrically connected does not inhibit ultrasonic vibration with a thin film (not shown) such as fluorine-based or silicon-based. Insulating coating is applied.
[0042]
Further, the rear end side from the end portion (flange portion) of the horn 15 of the ultrasonic transducer 11 is sealed by the casing 17 to prevent moisture and dirt from entering inside during cleaning and sterilization. .
[0043]
The horn 15, the back mass 16 and the probe 21 are made of a metal material such as titanium or geralumin due to good transmission of ultrasonic vibration.
[0044]
A female screw 18 and a male screw 22 that are screwed together are formed at the tip of the horn 15 and the end of the probe 21. Thereby, the horn 15 and the probe 21 can be detachably coupled mechanically and electrically. The probe 21 is formed in a tubular shape, and a suction hole 23 penetrating from the distal end side to the proximal side is formed. The probe 21, the horn 15, and the back mass 16 are formed with a suction path communicating from the suction hole 23 to the suction base 24. A suction tube 25 can be connected to the suction base 24. As a result, the handpiece 10 forms a suction path that communicates from the tip of the lobe 21 to the end of the suction base 24.
[0045]
Supply of power to the ultrasonic transducer 11 is performed by the ultrasonic active line 27 and the ultrasonic neutral line 28 of the cable 26. The ultrasonic active line 27 and the ultrasonic neutral line 28 are connected to the transducer active terminal 13 and the transducer neutral terminal 14, respectively. In addition, the transducer neutral terminal 14, the horn 15, and the probe 21 are electrically connected.
[0046]
A sheath 30 is connected to the distal end side of the casing 17. The sheath 30 covers a portion of the probe 21 that is not desired to touch the living body. The sheath 30 is provided with a water supply base 31. A water supply tube 32 can be connected to the water supply base 31. As a result, the handpiece 10 can supply cooling water from the water supply tube 32 to the tip of the probe 21 via the water supply path 33.
[0047]
The casing 17 and the sheath 30 are made of, for example, a heat-resistant resin material having electrical insulation properties, and prevent electric shock from being applied to the operator and the patient.
[0048]
The casing 17 and the sheath 30 are formed with shields 34 and 35 for capturing electromagnetic waves and noise. The shields 34 and 35 are formed, for example, by covering an electrically insulating material with a mesh or knitted metal. Further, the shields 34 and 35 are electrically connected to the shield wire 29 of the cable 26. As a result, when the ultrasonic surgical apparatus 1 is used, radiation to a space that cannot be used for treatment using an ultrasonic current or a radio wave current, which will be described later, can be captured. Can prevent adverse effects.
[0049]
Next, an outline of the ultrasonic surgical apparatus according to the first embodiment of the present invention will be described with reference to FIG.
[0050]
In FIG. 2, the ultrasonic surgical apparatus 1 includes the handpiece 10, a power supply unit 40, a water supply pump 81, and a suction device 82. The power supply unit 40 is roughly composed of an ultrasonic power supply 41, a radio wave power supply 42, a control circuit 43, a display device 44, an operation device 45, a switch 46, and a matching circuit 47.
[0051]
A water pump 81 and a suction device 82 are connected to the control circuit 43.
The control circuit 43 can control the ultrasonic power source 41, the radio wave power source 42, the water supply pump 81, and the suction device 82, and also has a function of detecting the output states of the ultrasonic power source 41 and the radio wave power source 42, It has a function of detecting the total water amount of the pump 81 and the suction amount (pressure) state of the suction device 82.
[0052]
The operation device 45 is for performing operations such as an operation mode in addition to the ultrasonic output, radio wave output, cooling water amount, suction amount (pressure) of the ultrasonic surgical apparatus 1.
[0053]
The display device 44 displays various settings and operating conditions. The switch 46 performs operations for controlling ultrasonic output, radio wave output, cooling water, and suction.
[0054]
The water supply pump 81 can supply cooling water in conjunction with ultrasonic output in order to cool the heat generated by the probe 21 and the sheath 30 due to ultrasonic vibrations. Can be delivered in the desired amount. Moreover, the water supply pump 81 has a means for detecting the water supply state of the cooling water.
[0055]
The suction device 82 can suck only tissue that has been crushed or emulsified during ultrasonic treatment, which will be described later, and can perform only suction as needed. The suction device 82 has means for detecting the suction amount and the suction pressure.
[0056]
The ultrasonic power source 41 includes an ultrasonic amplifier 51 and a filter 52. The ultrasonic amplifier 51 generates an ultrasonic current. The filter 52 prevents malfunction due to inflow of radio wave current, increase in leakage current, and the like.
[0057]
The active-side output terminal of the ultrasonic amplifier 51 is connected to the ultrasonic active terminal 71 of the power connector 70 via the ultrasonic active line 53, the filter 52, and the ultrasonic active line 54.
[0058]
The neutral-side output terminal of the ultrasonic amplifier 51 is connected to the ultrasonic neutral terminal 72 of the power connector 70 via the ultrasonic neutral line 55, the filter 52, the ultrasonic neutral line 56, and the ultrasonic neutral line 60. .
[0059]
The ultrasonic power source 41 can generate an ultrasonic current of 20 kHz or more that drives the ultrasonic transducer 11 shown in FIG.
[0060]
The filter 52 has a capability of reducing the flow of at least a multiple component (integer multiple or 1 / integer multiple) of the fundamental frequency of the radio wave current into the ultrasonic power supply 41. The reason why the multiple component is particularly reduced is that a current having a specific frequency component usually includes a high-frequency or low-frequency noise component in which the multiple component is emphasized. The ultrasonic power source 41 can effectively prevent the malfunction of the device due to the radio wave current and the increase of the leakage current by the filter 52.
[0061]
The radio wave power source 42 includes a radio wave amplifier 61 filter 62.
The radio wave amplifier 61 generates a radio wave current. The filter 62 prevents malfunction due to inflow of ultrasonic current, increase in leakage current, and the like.
[0062]
The active side output terminal of the radio wave amplifier 61 is connected to the ultrasonic neutral line 60 via the radio wave active line 63, the filter 62 and the radio wave active line 64.
[0063]
The neutral-side output terminal of the radio wave amplifier 61 is connected to the matching circuit 47 via the radio wave neutral line 65, the filter 62, and the radio wave neutral line 66.
[0064]
The matching circuit 47 controls the impedance between the active side and the neutral side of the radio wave power source 42 to an optimum value in a timely manner, and at the same time, living tissue by the ultrasonic current and the radio wave current captured by the shield wire 29 and the shields 34 and 35. Electromagnetic radiation that cannot be used for the above-mentioned treatment can be sent to the ground side or the neutral side of the radio wave power source 42 in a timely manner.
[0065]
The matching circuit 47 is connected to the shield terminal 73 of the power connector 70 via the shield wire 67. The radio wave power source 42 can discharge a radio wave current of 8 MHz or more capable of setting the living tissue to ground via the probe 21 to the living body.
[0066]
The filter 62 has a capability of reducing the flow of at least a multiple component (integer multiple or 1 / integer multiple) of the fundamental frequency of the ultrasonic current into the radio wave power source 42. The reason for this is the same as the reason why the filter 52 reduces the multiple component of the radio wave current.
[0067]
The radio wave power source 42 can effectively prevent malfunction and increase of leakage current in the device derived from the ultrasonic current by the filter 62.
[0068]
A ground terminal 68, a ground terminal 58, and a ground terminal 67 are provided from the matching circuit 47, the ultrasonic amplifier 51, and the radio wave amplifier 61, respectively.
[0069]
The ultrasonic active terminal 71, the ultrasonic neutral terminal 72, and the shield terminal 73 are provided on the power connector 70. The ultrasonic active line 27, the ultrasonic neutral line 28, and the shield line of the cable 26 on the handpiece side. 29 are connected to the handpiece connector 36, respectively.
[0070]
The handpiece connector 36 and the power connector 70 are detachable. When connected, the ultrasonic active wire 27 and the ultrasonic active terminal 71, the ultrasonic neutral wire 28 and the ultrasonic neutral terminal 72, the shield wire 29 and the shield terminal 73 are connected. Are to be connected.
[0071]
In addition, the power supply unit 40 is provided with a control circuit 43 for setting the operation device 45 for performing various setting operations for the ultrasonic power supply 41, the radio wave power supply 42, the water pump 81, and the suction device 82, and the operation of the apparatus. The operation can be controlled by operating a switch 46, and the setting control and operation states are displayed on the display device 44. The switch 46 may have a plurality of functions (for example, operation of the ultrasonic power supply 41 and operation of the radio wave power supply 42) in one casing, but the shape (for example, the ultrasonic power supply 41 of the ultrasonic power supply 41) separated according to the function. The operation may be a stepping type, and the radio wave power source 42 may be a handpiece switch type attached to the handpiece 10), and the form is not limited as long as it is within the scope of the present invention.
[0072]
In such an ultrasonic surgical apparatus 1, generally, as the ultrasonic output is increased, the amount of heat generated by ultrasonic vibration of the sheath 30 and the probe 21 increases, so it is necessary to increase the amount of cooling water. In addition, the sharpness (treatment capability) of the ultrasonic surgical apparatus 1 increases as the intensity of ultrasonic output and the amount of suction (pressure) increase, but biological tissue selectivity (elasticity), which is a feature of the ultrasonic surgical apparatus 1. Highly specific blood vessels and nerves are difficult to crush, and fragile biological tissues such as fat and tumor tend to be crushed), so adjust the ultrasonic output and suction volume (pressure) as necessary. There is a need. In addition, in the treatment with high-frequency current including radio waves, the coagulation ability of living tissue increases to a certain level when the output is increased, but the incision ability becomes stronger beyond that and the output is further increased. Since transpiration of living tissue occurs, it is necessary to use the output as needed. Here, in the case of a monopolar type high-frequency treatment that collects current with a general diffusion electrode, if the electrolyte liquid such as body fluid, physiological saline, or blood is stored, the current diffuses into the liquid. However, in the case of a radio wave current as in the present embodiment, the current does not diffuse even when used in an electrolyte liquid, resulting in a decrease in capacity. There is no advantage.
[0073]
Furthermore, when treatment with ultrasonic vibration and treatment with high-frequency current are performed at the same time, for example, when performing liver resection, important thick blood vessels and liver vessels that must be treated may be preserved and fine blood vessels that may be cut off. For example, it is known that it is possible to perform excision efficiently while suppressing bleeding. Therefore, it is effective for surgery to use the ultrasonic output and the high-frequency output with appropriate adjustment.
[0074]
For this reason, in this embodiment, various settings can be made manually, and, for example, in conjunction with the ultrasonic output setting, simultaneously with the amount of cooling water, suction amount (pressure), and ultrasonic output at the time of ultrasonic output. A radio wave output setting for output is automatically set by a preset mapping. This is not only the case when the ultrasonic output setting is set to the floor. For example, if the radio wave output when outputting simultaneously with the ultrasonic output is manually determined, the ultrasonic output and the cooling water amount are automatically determined. It does not matter if any parameter is set on the floor and other parameters are automatically set. This function makes it easy to set and use various parameter values at optimum conditions at any time.
[0075]
With such a configuration, the radio wave power source 42 is a radio wave current generating means capable of generating a high-band radio wave current that can be discharged to a living tissue.
[0076]
The probe 21 is a long discharge electrode member that can be treated by discharging the radio wave current generated by the radio wave current generating means to the living tissue.
[0077]
The ultrasonic transducer 11 is connected to the proximal end portion of the discharge electrode member, and can generate ultrasonic vibration capable of treating the living tissue.
[0078]
The ultrasonic power source 41 is a drive signal generating means capable of generating a drive signal for driving the ultrasonic transducer 11.
[0079]
The control circuit 43 is a control means capable of controlling the drive signal generating means and the radio wave current generating means.
[0080]
The probe 21 is formed of a conductive member so as to be electrically connectable to the neutral terminal 14 of the ultrasonic transducer 11, and the ultrasonic vibration from the ultrasonic transducer 11 driven by the drive signal. Is mechanically connected to the ultrasonic transducer 11 in order to transmit.
[0081]
The radio wave power source 42 is connected to the conductive path of the neutral terminal 14 to which the probe 21 is electrically connected, and can supply a high-band radio wave current that can be discharged to the probe 21 through the conductive path. It has become.
[0082]
The ultrasonic surgical apparatus 1 includes a handpiece 10 and a power supply unit 40.
The ultrasonic power supply 41 includes an ultrasonic amplifier 51 that is provided in the power supply unit 40 and generates an ultrasonic current having a frequency of 20 kHz or more.
[0083]
The ultrasonic transducer 11 is provided in the handpiece 10 and is disposed so as to form a closed circuit between the active side and the neutral side of the ultrasonic current output of the ultrasonic power source 41, and is connected to the active side. And a transducer neutral terminal 14 connected to the neutral side to convert the ultrasonic current into ultrasonic vibration.
[0084]
The probe 21 is provided on the handpiece 10 and is mechanically detachably fastened to the ultrasonic transducer 11 to transmit the ultrasonic vibration to a living tissue and to output an ultrasonic current from the ultrasonic power source 41. It is electrically detachable from the neutral side.
[0085]
The casing 17 is provided on the handpiece 10, has electrical insulation, and covers the ultrasonic transducer 11.
[0086]
The sheath 30 is provided on the handpiece 10 and has electrical insulation, and covers a portion of the probe 21 that is not desired to touch the living tissue.
[0087]
The radio wave power source 42 includes a radio wave amplifier 61 that is provided in the power supply unit 40 and generates a high-band radio wave current for treating the living tissue by discharging the living tissue as ground. The active side of the radio wave current output of the amplifier 61 is electrically connected to the transducer neutral terminal 14 of the ultrasonic transducer 11.
[0088]
The filters 52 and 62 are provided in the power supply unit 40, and at least one of malfunction due to an output current of the other party, inflow of noise, or increase in leakage current with respect to at least one of the ultrasonic current and the radio wave current. In order to prevent this, the electrical filter prevents the inflow of a current having a frequency component that is an integer multiple of the fundamental frequency of the output current of the other party or at least the other party's output current.
[0089]
(Function)
Next, the operation of this embodiment will be described.
When the ultrasonic surgical apparatus 1 is used, first, the probe 21 is fastened to the ultrasonic vibrator 11 and the sheath 30 is connected to the casing 17. Next, the handpiece connector 36 is connected to the power connector 70, and the water supply tube 15 is connected to the water supply base 31 and the water supply pump 81 to prepare for supplying cooling water. Next, the suction tube 25 is connected to the back mass 24 and the suction device 82 to prepare for suction.
[0090]
Thereafter, the power supply unit 40, the water pump 81, and the suction device 82 are turned on. Next, various settings are made by operating the operating device 45, and the water supply pump 81 is operated by operating the switch 46 to fill the water supply path 33 with cooling water and complete the preparation for use.
[0091]
At this time, when the output setting of the ultrasonic power supply 41 is performed, the cooling water amount of the water supply pump and the suction amount (pressure) of the suction device 82 are automatically set according to a predetermined map. In addition, when the ultrasonic treatment and the treatment using the radio wave current, which will be described later, are used simultaneously, when the output setting of the ultrasonic power supply 41 is performed, the output of the radio wave current during the simultaneous use is automatically determined according to a predefined map. Set to
[0092]
When one parameter is set in this way, other related parameters are automatically set, so that the operator can easily use the device with the optimal setting at any time. It becomes possible. In addition, since it is possible to detect the cooling water supply state, the suction amount, and the suction pressure state, other parameters related in real time may be automatically changed to appropriate settings, for example, depending on the operation status. .
[0093]
When ultrasonic treatment is performed on the living tissue, the tip of the probe 21 is lightly touched to the target living tissue, the switch 46 is operated to operate the ultrasonic power supply 41, and the ultrasonic vibrator 11 generates ultrasonic vibration. . At this time, the water supply pump 81 operates simultaneously to supply cooling water so as to suppress the heat generation of the probe 21 and the sheath 30. The biological tissue touching the tip of the probe 21 is crushed or emulsified by ultrasonic vibration, and is collected in the suction device 82 through the suction hole 23 together with the cooling water. When stopping the treatment, the operation of the switch 46 is stopped and the ultrasonic power supply 41 is stopped. At this time, the water supply pump 81 is also stopped.
[0094]
When treating a living tissue with a radio wave current, the tip of the probe 21 is lightly touched to the target living tissue, the switch 46 is operated to operate the radio wave power source 42, and the radio wave current is applied to the target living tissue from the tip of the probe 21. To solidify or incise or evaporate living tissue. When stopping the treatment, the operation of the switch 46 is stopped and the operation of the radio wave power source 42 is stopped.
[0095]
When a living tissue is treated using both ultrasound and radio waves, the tip of the probe 21 is lightly touched to the target living tissue, the switch 46 is operated to operate the ultrasonic power supply 41, and the ultrasonic transducer 11 is operated. Generate ultrasonic vibrations. At this time, the water supply pump 81 operates simultaneously to supply cooling water so as to suppress the heat generation of the probe 21 and the sheath 30. The biological tissue touching the tip of the probe 21 is crushed or emulsified by ultrasonic vibration, and is collected in the suction device 82 through the suction hole 23 together with the cooling water.
[0096]
At the same time, the radio wave power source 42 operates to cause a radio wave current to flow from the tip of the probe 21 to the target living tissue, and for example, bleeding from a fine blood vessel that has been cut by the ultrasonic treatment coagulates simultaneously with the ultrasonic treatment. .
[0097]
At this time, radiation to a space that cannot be used for treatment using ultrasonic current and radio wave current as a source is captured by the shields 34 and 35 and the shield wire 29 described above and collected in the matching circuit 47.
[0098]
Here, the matching circuit 47 allows the collected radiation to flow as a timely current to the neutral side of the radio wave power source 42 or the ground terminal 68.
[0099]
Radiation using the ultrasonic current as a source includes a multiple component based on the ultrasonic current, and radiation using the radio wave current as a source includes a multiple component based on the radio wave current.
[0100]
Therefore, after the matching circuit 47 detects and classifies these frequencies, the radiation using the ultrasonic current as the generation source flows to the ground terminal 68, and the radiation using the radio wave current as the generation source flows to the neutral side of the radio wave power source 42. It comes to collect.
[0101]
In addition, the filter 52 reduces the flow of at least a multiple component of the fundamental frequency of the radio wave current into the ultrasonic power source 41. The filter 62 reduces the flow of at least a multiple component of the fundamental frequency of the ultrasonic current into the radio wave power source 42.
[0102]
As a result, it is possible to improve the efficiency of the radio wave power source, in particular, since radiation can be collected as surplus current while preventing malfunctions and noise of the device.
[0103]
In order to effectively operate such a function, it is easier to detect that the frequencies of the ultrasonic current and the radio wave current are not an integral multiple of each other. In order to enhance the filtering capability, it is preferable that the mutual frequency of the ultrasonic current and the radio wave current is not an integral multiple. Therefore, in this embodiment, for example, the ultrasonic current is 235 KHz and the radio wave current is 10 MHz. A frequency that does not become an integer multiple is selected.
[0104]
(effect)
As described above, according to the first embodiment, it is possible to prevent the radiation generated from the ultrasonic current from other than the tip of the probe 21 from flowing into the radio wave power source 42 and the radio wave power source 42. And ultrasonic power supply 41 can be reduced, so that high-frequency treatment and high-frequency treatment using high-band radio wave current can be used together without replacement of equipment, and ultrasonic treatment and high-band radio wave current can be used. By simultaneously performing high frequency treatment, the effect of pulverization or emulsification of tissue by ultrasonic treatment, the effect of suction and tissue selectivity, and the coagulation / incision effect of high frequency treatment using high-band radio wave current can be obtained in combination. Can do.
[0105]
In addition, according to the first embodiment, it is possible to prevent an increase in leakage current and noise during the high-frequency current treatment, malfunction and leakage of the device, and release of electromagnetic waves that cannot be used for biological treatment, etc. The apparatus can perform high-frequency current treatment with high reliability and efficiency.
[0106]
Further, according to the first embodiment, when the high frequency current treatment is used in combination with the ultrasonic treatment using the cooling water, unnecessary current diffusion can be prevented and the efficiency of the high frequency treatment can be improved. .
[0107]
(Second Embodiment)
FIG. 3 is a sectional view showing a hand piece of an ultrasonic surgical apparatus according to the second embodiment of the present invention.
[0108]
In the description of the second embodiment using FIG. 3, the same components as those in the first embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.
[0109]
(Constitution)
As shown in FIG. 3, the handpiece 110 of the second embodiment has basically the same configuration as the handpiece 10 of the first embodiment, but compared with the first embodiment. It does not have a cooling water supply function and a suction function, and is mainly used for incision or coagulation of living tissue.
[0110]
The handpiece 110 has an ultrasonic transducer 111 inside. The ultrasonic vibrator 111 is assembled by sandwiching a plurality of PZTs 12 with a vibrator active terminal 13 and a vibrator neutral terminal 14 and fastening them with a horn 115, a back mass 16 and a bolt 124. On the proximal side of the horn 115, a rod-shaped portion having a male screw portion (not shown) is provided. The rod-shaped portion is connected to a bolt 124 via a plurality of PZT 12, transducer active terminal 13, transducer neutral terminal 14, and back mass 16. It is connected to the.
[0111]
Further, the surface of the ultrasonic transducer 111 is provided with, for example, a fluorine-based or silicon-based insulating coating that does not inhibit ultrasonic vibration with a thin film (not shown) except for a portion that requires conduction.
[0112]
Only a hole through which the cable 26 passes is formed on the back surface of the casing 117 and the shield 134 that seal the rear end side from the end portion (flange portion) of the horn 115 of the ultrasonic transducer 111.
[0113]
Unlike the embodiment of FIG. 1, the horn 115 and the probe 121 do not form suction holes. The distal end portion 123 of the probe 121 is formed in a curved shape suitable for coagulation / incision of a living tissue during ultrasonic treatment.
[0114]
Unlike the embodiment of FIG. 1, the sheath 130 and the shield 135 are not attached with a water supply base.
[0115]
In the ultrasonic surgical apparatus using the handpiece 110, the water supply pump 81 and the suction apparatus 82 shown in FIG. 2 are not provided.
[0116]
(Function)
Next, the operation of this embodiment will be described.
In the second embodiment, water is not supplied or supplied by the handpiece 110, and the action given to the living tissue during the ultrasonic treatment is not crushing or emulsifying, but becomes a coagulation or incision. Different from form. The other operations of the second embodiment are the same as those of the first embodiment.
[0117]
(effect)
According to the second embodiment as described above, the same effect as that of the first embodiment can be obtained even in the ultrasonic surgical apparatus in which the action given to the living tissue during the ultrasonic treatment is coagulation or incision. Can do.
[0118]
(Third embodiment)
4 to 7 relate to a third embodiment of the present invention, FIG. 4 is a cross-sectional view showing an outline of the internal structure of the handpiece of the ultrasonic surgical apparatus, and FIG. 5 is a side view showing the appearance of the handpiece. FIG. 6 is a cross-sectional view showing a mechanism for operating the jaws of the handpiece, and FIG. 7 is an explanatory view showing a state in which the connection structure of the handle and the operating rod in FIG. 6 is viewed from the direction A in FIG.
[0119]
In the description of the third embodiment using FIG. 4 to FIG. 7, the same components as those in the second embodiment shown in FIG.
[0120]
(Constitution)
As shown in FIG. 4, the ultrasonic surgical apparatus 201 of the present embodiment is generally called an ultrasonic coagulation / cutting apparatus among ultrasonic surgical apparatuses, and includes a probe 121 and a gripping member of the handpiece 210. By performing ultrasonic treatment in a state where the living tissue is sandwiched between a certain jaw 281, the living tissue can be incised while coagulating.
[0121]
In the handpiece 210, a portion excluding the tip of the probe 121, the ultrasonic transducer 111 and the operation rod 282 are accommodated in a casing 217.
[0122]
The jaw 281 is provided in a rotatable state via a shaft 283 on the distal end side of the casing 217. As a result, the jaw 281 can be opened and closed with respect to the distal end portion 123 of the probe 121 so as to face the rope 121. The jaw 281 opens and closes with respect to the probe 121 with respect to the distal end portion 123 of the probe 121 by the operation of the operation rod 282.
[0123]
The operation rod 282 is for opening and closing the jaw 281 about the shaft 283 and has conductivity.
[0124]
The casing 217 and the sheath 230 are a section 241 in which the proximal side of the ultrasonic transducer 111 having basically the same structure as that of the second embodiment is stored, a section 242 in which the horn 115 and the probe 121 are stored, and an operation rod. It is divided into a partition 243 in which 282 is stored. The compartments 241, 242, and 243 are provided with shields 234, 235, and 236, respectively.
[0125]
The operating rod 282 is electrically connected to the shields 234, 235, and 236, and the shields 234, 235, and 236 are connected to the shield wire 29 in the same manner as in the first and second embodiments, and the first embodiment It is connected to the power supply part 40 shown by FIG. 2 similarly to a form.
[0126]
With this structure, when a treatment with a radio wave current is performed, the radio wave current flowing from the tip of the probe 121 to the living tissue can be collected by the jaw 281 and returned to the neutral side of the radio wave power source 42. The efficiency of the power source 42 can be improved.
[0127]
Next, the whole hand piece 210 according to the third embodiment of the present invention will be described with reference to FIG.
[0128]
As shown in FIG. 5, the casing 217 of the handpiece 210 includes a first handle 284 and a second handle 285.
[0129]
The handpiece 210 opens and closes the jaw 281 with respect to the probe 121 by moving the operating rod 282 shown in FIG. 4 back and forth by opening and closing the second handle 285 with respect to the first handle 284 about the shaft 286. I can do it.
[0130]
Next, the opening / closing mechanism of the jaw 281 according to the third embodiment of the present invention will be described with reference to FIGS.
[0131]
As shown in FIGS. 6 and 7, since the jaw 281 needs to absorb the ultrasonic vibration of the probe 121, the surface is formed with a pad 287 by heat-resistant and flexible resin (for example, Teflon (R)). However, in order to ensure the strength, a metal cored bar 288 is provided inside.
[0132]
Even if the surface of the radio wave current is covered with an insulating member, the current can flow if there is a conductive member such as metal inside. After that, the core 288 of the jaw 281 can be reached. For this reason, it is not necessary to expose the metal surface to the surface of the pad 287 facing the probe 121, and even if the probe 121 and the metal surface are in contact with each other, the probe 121 can be prevented from being damaged by ultrasonic vibration. Here, the metal core 288 is pivotally connected to the sheath 230 shown in FIG. An operating rod 282 is connected to the cored bar 288 by a shaft 289 so as to be rotatable. A spherical portion 290 is formed on the proximal side of the operation rod 282. The spherical portion 290 is slidably engaged with a groove 291 provided on the upper portion of the second handle 285. A conductive plate 292 is provided in the groove 291, and is electrically connected to the shields 234, 235, and 236 shown in FIG.
[0133]
With this structure, the above-described core metal 288, shaft 289, operation rod 282, spherical portion 290, conductive plate 292, shields 234, 235, and 236 are electrically connected.
[0134]
Further, as described above, when the second handle 285 is opened / closed with respect to the first handle 284, the operating rod 282 is moved forward / backward, and accordingly, the jaw 281 is opened / closed with respect to the probe 121.
[0135]
(Function)
Next, the operation of this embodiment will be described.
The preparation stage is the same as that of the first embodiment except for the parts related to the water pump 81 and the suction device 82. Next, when the treatment is performed by grasping the living tissue, the living tissue is sandwiched between the probe 121 and the jaw 281 and the living tissue is grasped by the jaw 281 and the probe 121 by closing the second handle 285 with respect to the first handle 284.
[0136]
In the case of ultrasonic treatment, the ultrasonic power source 41 is activated by operating the switch 46 shown in FIG. 2, and the living tissue is coagulated and incised using ultrasonic friction with the probe 121. The operation is stopped, the operation of the ultrasonic power supply 41 is stopped, and the jaw 281 is opened with respect to the probe 121 by opening the second handle 285 with respect to the first handle 284 to prepare for the next treatment. In most cases, the biological tissue gripped at this time is naturally separated from the jaw 281 and the probe 121 without opening the jaw 281 with respect to the probe 121 by the above-described ultrasonic coagulation or incision.
[0137]
In the case of performing treatment using radio wave current, similarly, the living tissue is grasped by the probe 121 and the jaw 281 and the radio wave power source 42 is operated by operating the switch 46 shown in FIG. Wave current is applied to cauterize. At this time, the radio wave current flowing in the living body is captured by the cored bar 288 of the jaw 281. For this reason, there is an advantage that the cauterization ability is improved because the radio wave current flowing into the living tissue converges. Further, since pinpoint cauterization is possible, it is suitable for fine treatment. The captured radio wave current flows to the shields 234, 235, 236 by the electrical connection from the jaw 281 to the shields 234, 235, 236. At the same time, radiation components that cannot be used for the treatment of the living body of the radio wave current radiated from the probe 121 or the like are captured by the shields 234, 235, and 236, both of which have been described in the explanation of the operation of the first embodiment. Then, it is collected on the neutral side of the radio wave power source 42. When the treatment is completed, the operation of the switch 46 is stopped, the operation of the radio wave power source 42 is stopped, the jaw 281 is opened with respect to the probe 121 by opening the second handle 285 with respect to the first handle 284, and the ablated biological body. Release the tissue and prepare for the next treatment.
[0138]
When performing the ultrasonic treatment and the radio wave current treatment at the same time, for example, the switch 46 is set so that both are output simultaneously with the operation, or a plurality of switches 46 are provided as in the first embodiment. The operation of the ultrasonic power source 41 and the geo-wave power source 42 is performed with hands and feet. Then, the switch 46 is operated to activate the ultrasonic power source 41 and the radio wave power source 42 to treat the living tissue.
[0139]
In addition, it is possible to perform ultrasonic treatment and treatment with radio wave current using only the probe 121 without grasping the living tissue with the probe 121 and the jaw 281. In this case, the operation is the same as that described above except that the operation of the second handle 285 is omitted.
[0140]
(effect)
According to the third embodiment, in the ultrasonic surgical apparatus using the probe and the gripping member, the same effect as that of the second embodiment can be obtained, and the probe or the probe and the gripping member can be obtained. It is possible to improve the durability of the probe at the time of high-frequency treatment using the electrode.
[0141]
(Fourth embodiment)
8 and 9 relate to a fourth embodiment of the present invention, FIG. 8 is a cross-sectional view showing a handpiece of an ultrasonic surgical apparatus, and FIG. 9 is a block diagram showing an outline of the overall configuration of the ultrasonic surgical apparatus. is there.
[0142]
In the description of the fourth embodiment using FIG. 8 and FIG. 9, the same components as those in the first embodiment shown in FIG. 1 and FIG. .
[0143]
(Constitution)
As shown in FIG. 8, the handpiece 310 according to the fourth embodiment has a horn 15, a probe 21, and a back mass 316 that are electrically insulated from other parts of the ultrasonic transducer 311, and will be described later. The radio wave active line 391 on the active side of the wave power source 42 is electrically connected to the horn 15 via the horn terminal 392, which is different from the first embodiment. In this case, an insulating material 393 and an insulating material 394 are sandwiched between the PZT 17, the vibrator active terminal 13, and the vibrator neutral terminal 14 in order to insulate the horn 15 and the back mass 316.
[0144]
In the shield line 29 of the cable 326, a radio wave active line 391, an ultrasonic active line 27, and an ultrasonic neutral line 28 are provided.
[0145]
Further, the suction cap 324 is formed of an electrically insulating material such as resin, and an O-ring 395 is connected to the connection portion with the back mass 316 so that the suction of the ultrasonic transducer 311 is not hindered. The watertightness of the path 396 is ensured, and the radio wave current is prevented from leaking through the suction cap 324.
[0146]
Further, as in the first embodiment, the surface of the ultrasonic transducer 311 is provided with a non-illustrated thin film (not shown), for example, a fluorine-based or silicon-based insulating coating that does not inhibit ultrasonic vibration except for the portion that needs to be electrically connected. Current and radio wave current leakage is prevented.
[0147]
With the above structure, the horn 15 and the probe 21 are electrically completely separated from the ultrasonic current circuit, and the radio wave current flowing through the radio wave active line 391 and flowing through the horn 15 and the probe 21 is the ultrasonic current. As compared with the first embodiment, the effect of preventing leakage current and noise between the ultrasonic current circuit and the radio wave current circuit is enhanced.
[0148]
The other configuration of the present embodiment is basically the same structure as the handpiece 310 of the first embodiment shown in FIG.
[0149]
The outline of the ultrasonic surgical apparatus 301 which concerns on 4th Embodiment of this invention using FIG. 9 is shown.
[0150]
As shown in FIG. 9, the power supply unit 340 of the ultrasonic surgical apparatus 301 passes through the radio wave active terminal 374 and the radio wave active line 397 through a path in which the radio wave active line 64 of the radio wave power source 42 is independent. By connecting to the radio wave active line 391, the ultrasonic current circuit and the radio wave current circuit are completely separated.
[0151]
The other configuration of the fourth embodiment is basically the same as that of the ultrasonic surgical apparatus 1 of the first embodiment shown in FIG.
[0152]
In the fourth embodiment, the leakage current and noise between the ultrasonic current and the radio wave current circuit are prevented more than the first embodiment by the structure of FIG. 9 and the structure of the hand piece 310 of FIG. However, in consideration of mutual signal mixing due to radiation between wirings stored in the cable 326, the filter 52 and the filter 62 are provided as in the first embodiment.
[0153]
(Function)
Next, the operation of this embodiment will be described.
In the fourth embodiment, the radio wave current of the radio wave power source 42 is converted into the radio wave active of FIG. 7 via the radio wave active terminal 374 and the radio wave active line 297 through a path independent of the radio wave active line 64. It flows to the target living tissue through the wire 391, the horn terminal 392, the horn 15, and the probe 21.
[0154]
Other operations are the same as those in the first embodiment.
(effect)
According to the fourth embodiment, the same effect as that of the first embodiment can be obtained, and the leakage between the ultrasonic current and the radio wave current circuit can be improved as compared with the first embodiment. The effect of preventing current and noise is enhanced.
[0155]
As described above, within the scope of the object of the present invention and the claims, there is no particular limitation on the embodiment of the ultrasonic surgical apparatus, and any of them can be used regardless of the shape of the probe, the shape or operation of the handpiece. It does n’t matter.
[0156]
[Appendix]
According to the embodiment of the present invention described in detail above, the following configuration can be obtained.
[0157]
(Additional Item 1) In an ultrasonic surgical apparatus having a handpiece and a power supply unit,
An ultrasonic power source having an ultrasonic amplifier that is provided in the power supply unit and generates an ultrasonic current having a frequency of 20 kHz or more;
The handpiece is disposed so as to form a closed circuit between an active side and a neutral side of the ultrasonic current output of the ultrasonic power source, and has an active terminal connected to the active side, and the neutral An ultrasonic transducer that has a neutral terminal connected to the side and converts the ultrasonic current into ultrasonic vibration;
It is provided on the handpiece and is mechanically detachably fastened to the ultrasonic transducer, transmits the ultrasonic vibration to the living tissue, and is electrically connected to the neutral side of the ultrasonic current output of the ultrasonic power source. A removable probe,
A casing provided on the handpiece, having electrical insulation and covering the ultrasonic transducer;
A sheath that is provided on the handpiece, has electrical insulation, and covers a portion of the probe that does not want to touch the living tissue;
A radio wave amplifier that is provided in the power supply unit and generates a high-band radio wave current for treating the living tissue by discharging the living tissue as ground, and the radio wave current output of the radio wave amplifier is active A radio wave power source whose side is electrically connected to the neutral terminal of the ultrasonic transducer;
In order to prevent at least one of malfunction or inflow of noise or increase in leakage current due to the output current of the counterpart to at least one of the ultrasonic current and the radio wave current provided in the power supply unit An electrical filter that prevents inflow of current having a frequency component that is an integer multiple of the fundamental frequency of the output current of at least the other party's output current, and
An ultrasonic surgical apparatus comprising:
[0158]
(Additional Item 2) The ultrasonic surgical apparatus according to Additional Item 1, wherein a frequency of the radio wave current is 8 MHz or more.
[0159]
(Additional Item 3) The ultrasonic surgical apparatus according to Additional Item 1 or 2, wherein the relationship between the frequency of the ultrasonic current and the radio wave current is other than an integral multiple.
[0160]
(Additional Item 4) At least one or more of the casing, the sheath, a cable connecting the ultrasonic power source and the ultrasonic transducer, and a cable connecting the probe and the radio frequency power source are the radio wave current and the Having a shield structure that captures radiation to a space that cannot be used to treat biological tissue, at least one of the ultrasonic currents;
The shield structure and the ground are electrically connected, or are electrically connected to the neutral side of the radio wave current output of the radio wave power source via a matching circuit for optimizing impedance matching. The ultrasonic surgical apparatus according to any one of additional items 1 to 3, characterized in that:
[0161]
(Additional Item 5) The matching circuit determines whether the current of the radiation component captured by the shield structure is derived from the ultrasonic current or the radio wave current, and When it is derived from a sonic current, the shield structure and the ground are electrically connected, and when it is derived from the radio wave current, the shield structure and the neutral side of the radio wave current output are electrically connected. Item 5. The ultrasonic surgical apparatus according to Item 4, wherein
[0162]
(Additional Item 6) The circuit for determining the current of the radiation component has a function of measuring a frequency, and when the frequency of the current of the radiation component includes a multiple component of the radio wave current, the shield structure The ultrasonic surgical apparatus according to item 5, wherein the neutral side of the radio wave current output is electrically connected.
[0163]
(Additional Item 7) The ultrasonic surgical apparatus according to any one of Additional Items 1 to 6, wherein each of the ultrasonic power source and the radio wave power source has means for selectively outputting a current.
[0164]
(Additional Item 8) Means for supplying liquid to the probe tip via the outer surface of the probe;
Means for aspirating the liquid or surgical object via the probe lumen;
The ultrasonic surgical apparatus according to any one of the additional items 1 to 7, wherein the ultrasonic surgical apparatus includes:
[0165]
(Additional Item 9) Output of ultrasonic current of the ultrasonic power source, output of radio wave current of the radio wave power source, supply amount of means for supplying the liquid to the probe tip, suction of the suction means Item 9. The ultrasonic surgical apparatus according to Item 8, further comprising means for detecting at least one of the pressure and the suction flow rate.
[0166]
(Additional Item 10) Output of ultrasonic current of the ultrasonic power source, output of radio wave current of the radio wave power source, supply amount of means for supplying the liquid to the probe tip, and suction of the suction means The ultrasonic surgery according to item 9, further comprising means for subordinately setting at least one or more other settings for at least one or more items in the pressure or the suction flow rate. apparatus.
[0167]
(Additional Item 11) In an ultrasonic surgical apparatus having a handpiece and a power supply unit,
An ultrasonic power source having an ultrasonic amplifier that is provided in the power supply unit and generates an ultrasonic current having a frequency of 20 kHz or more;
The handpiece is disposed so as to form a closed circuit between an active side and a neutral side of the ultrasonic current output of the ultrasonic power source, and has an active terminal connected to the active side, and the neutral An ultrasonic transducer that has a neutral terminal connected to the side and converts the ultrasonic current into ultrasonic vibration;
It is provided on the handpiece and is mechanically detachably fastened to the ultrasonic transducer, transmits the ultrasonic vibration to the living tissue, and is electrically connected to the neutral side of the ultrasonic current output of the ultrasonic power source. A removable probe,
A casing provided on the handpiece, having electrical insulation and covering the ultrasonic transducer;
A sheath that is provided on the handpiece, has electrical insulation, and covers a portion of the probe that does not want to touch the living tissue;
A radio wave amplifier that is provided in the power supply unit and generates a high-band radio wave current for treating the living tissue by discharging the living tissue as ground, and the radio wave current output of the radio wave amplifier is active A radio wave power source whose side is electrically connected to the neutral terminal of the ultrasonic transducer;
Provided in at least one of the casing, the sheath, a cable connecting the ultrasonic power source and the ultrasonic transducer, and a cable connecting the probe and the radio power source, the radio wave current and the ultrasonic current A shield structure that captures radiation to a space that cannot be used for treatment of biological tissue, at least one of
The shield structure is electrically connected to the ground, or is electrically connected to the neutral side of the radio wave current output via a matching circuit for optimizing impedance matching. Ultrasonic surgical device.
[0168]
(Additional Item 12) In an ultrasonic surgical apparatus having a handpiece and a power supply unit,
An ultrasonic power source having an ultrasonic amplifier that is provided in the power supply unit and generates an ultrasonic current having a frequency of 20 kHz or more;
The handpiece is disposed so as to form a closed circuit between an active side and a neutral side of the ultrasonic current output of the ultrasonic power source, and has an active terminal connected to the active side, and the neutral An ultrasonic transducer that has a neutral terminal connected to the side and converts the ultrasonic current into ultrasonic vibration;
A probe provided on the handpiece, mechanically detachably fastened to the ultrasonic transducer, transmitting the ultrasonic vibration to a living tissue, and electrically insulated from the closed circuit;
A casing provided on the handpiece, having electrical insulation and covering the ultrasonic transducer;
A sheath that is provided on the handpiece, has electrical insulation, and covers a portion of the probe that does not want to touch the living tissue;
A radio wave amplifier that is provided in the power supply unit and generates a high-band radio wave current for treating the living tissue by discharging the living tissue as ground, and the radio wave current output of the radio wave amplifier is active A radio wave power source that is electrically detachably connected to the probe;
Provided in at least one of the casing, the sheath, a cable connecting the ultrasonic power source and the ultrasonic transducer, and a cable connecting the probe and the radio power source, the radio wave current and the ultrasonic current A shield structure that captures radiation to a space that cannot be used for treatment of biological tissue, at least one of
The shield structure is electrically connected to the ground, or is electrically connected to the neutral side of the radio wave current output via a matching circuit for optimizing impedance matching. Ultrasonic surgical device.
[0169]
(Additional Item 13) In an ultrasonic surgical apparatus having a handpiece and a power supply unit,
An ultrasonic power source having an ultrasonic amplifier that is provided in the power supply unit and generates an ultrasonic current having a frequency of 20 kHz or more;
The handpiece is disposed so as to form a closed circuit between an active side and a neutral side of the ultrasonic current output of the ultrasonic power source, and has an active terminal connected to the active side, and the neutral And having a neutral terminal connected to the side, sandwiching a plurality of piezoelectric ceramics between the active terminal and the neutral terminal, fastened by a horn and a back mass, and converting the ultrasonic current into ultrasonic vibration, A bolted Langevin type ultrasonic transducer in which the horn is electrically insulated from the plurality of piezoelectric ceramics, the active terminal, the neutral terminal and the back mass;
The handpiece is mechanically and electrically detachably fastened to the horn. The ultrasonic vibration extracted from the horn is applied to the living tissue, and the plurality of piezoelectric ceramics, the active terminal, and the neutral terminal. And an insulated probe electrically insulated from the back mass;
A casing provided on the handpiece, having electrical insulation and covering the ultrasonic transducer;
A sheath that is provided on the handpiece, has electrical insulation, and covers a portion of the probe that does not want to touch the living tissue;
A radio wave amplifier that is provided in the power supply unit and generates a high-band radio wave current for treating the living tissue by discharging the living tissue as ground, and the radio wave current output of the radio wave amplifier is active A radio wave power source that is electrically detachably connected to the probe;
Provided in at least one of the casing, the sheath, a cable connecting the ultrasonic power source and the ultrasonic transducer, and a cable connecting the probe and the radio power source, the radio wave current and the ultrasonic current A shield structure that captures radiation to a space that cannot be used for treatment of biological tissue, at least one of
The shield structure is electrically connected to the ground, or is electrically connected to the neutral side of the radio wave current output via a matching circuit for optimizing impedance matching. Ultrasonic surgical device.
[0170]
(Additional Item 14) A jaw that is disposed at the distal end of the sheath and is openable and closable with respect to the distal end of the probe;
A set of handles provided at the casing or the handpiece hand portion, at least one of which opens and closes with respect to the other;
A transmission means for transmitting the operation of the handle to the jaw;
The ultrasonic surgical apparatus according to any one of appendices 11 to 13, wherein the jaw and the shield structure are electrically connected.
[0171]
(Additional Item 15) The ultrasonic surgical apparatus according to Additional Item 14, wherein the sheath covers the transmission unit in a state of being electrically connected to the probe.
[0172]
(Additional Item 16) The ultrasonic surgical apparatus according to Additional Item 15, wherein the jaw, the transmission means, and the shield structure are electrically connected.
[0173]
(Additional Item 17) The ultrasonic surgical apparatus according to any one of Additional Items 11 to 16, wherein the jaw includes a flexible member that covers at least a surface facing the probe.
[0174]
(Additional Item 18) The ultrasonic surgical apparatus according to any one of Additional Items 13 to 17, wherein the piezoelectric ceramic is obtained by mixing and sintering lead titanate and lead zirconate.
[0175]
(Additional Item 19) The ultrasonic surgical apparatus according to any one of Additional Items 1 to 18, wherein the frequency of the radio wave current in the high band is in a range of 8 MHz to 60 MHz.
[0176]
【The invention's effect】
As described above, according to the present invention, the high-frequency treatment using the high-band radio wave current and the ultrasonic treatment can be used together without replacing the device, and the ultrasonic treatment and the high-frequency treatment using the high-band radio wave current can be performed. By carrying out simultaneously, the effect | action of the crushing or emulsification of the structure | tissue by ultrasonic treatment, a suction effect, and a tissue selectivity, and the coagulation | solidification or incision effect by the high frequency treatment using a high band radio wave current can be acquired.
[0177]
In addition, according to the present invention, it is possible to prevent an increase in leakage current and noise during the high-frequency current treatment, malfunction and leakage of equipment, release of electromagnetic waves that cannot be used for biological treatment, and the like. High-efficiency high-frequency current treatment becomes possible.
[0178]
Further, according to the present invention, when a high frequency current treatment is used in combination with an ultrasonic treatment using cooling water, unnecessary current diffusion can be prevented and the efficiency of the high frequency treatment can be improved.
[0179]
Further, according to the present invention, unnecessary current diffusion can be prevented when a high frequency treatment is used in combination with an ultrasonic treatment using cooling water.
[0180]
Further, according to the present invention, in order to enhance the combined effect, the operations of the ultrasonic treatment and the high-frequency current treatment can be interlocked with each other.
[0181]
Further, according to the present invention, in an ultrasonic surgical apparatus having a grasping function, both high-frequency current treatment using a probe or a probe and a grasping member as electrodes and durability of the probe can be achieved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a handpiece of an ultrasonic surgical apparatus according to a first embodiment of the present invention.
FIG. 2 is a block diagram showing an outline of the overall configuration of the ultrasonic surgical apparatus according to the first embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a handpiece of an ultrasonic surgical apparatus according to a second embodiment of the present invention.
FIG. 4 is a cross-sectional view schematically showing an internal structure of a hand piece of an ultrasonic surgical apparatus according to a third embodiment of the present invention.
FIG. 5 is a side view showing the appearance of a handpiece according to a third embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a mechanism for operating a jaw of a handpiece according to a third embodiment of the present invention.
FIG. 7 is an explanatory view showing a connection structure between a handle and an operating rod according to a third embodiment of the present invention.
FIG. 8 is a cross-sectional view showing a handpiece of an ultrasonic surgical apparatus according to a fourth embodiment of the present invention.
FIG. 9 is a block diagram showing an outline of the overall configuration of an ultrasonic surgical apparatus according to a fourth embodiment of the present invention.
[Explanation of symbols]
1 ... Ultrasonic surgery device
11 ... Ultrasonic transducer
12 ... PZT
13 ... Vibrator active terminal
14… vibrator neutral terminal
15 ... Horn
16 ... Backmouth
17 ... Casing
21 ... Probe
24 ... Suction cap
25 ... suction tube
26 ... Cable
27 ... Ultrasonic active wire
28 ... Ultrasonic neutral wire
29… Shielded wire
30 ... sheath
31 ... Water transfer cap
32 ... Water supply tube
34, 35 ... shield
40 ... power supply
41 ... Ultrasonic power supply
42 ... Radio wave power supply
43 ... Control circuit
44 Display device
45. Operating device
46… Switch
47. Matching circuit
51 ... Ultrasonic amplifier
52, 62 ... Filter
61… Radio wave amplifier
81 ... water pump
82 ... suction device

Claims (2)

A radio wave current generating means capable of generating a high-band radio wave current that can be discharged to a living tissue;
A long discharge electrode member capable of performing treatment by discharging the radio wave current generated by the radio wave current generating means to the living tissue;
An ultrasonic transducer coupled to a base end portion of the discharge electrode member and capable of generating ultrasonic vibration capable of treating the living tissue;
Drive signal generating means capable of generating a drive signal for driving the ultrasonic transducer;
Control means capable of controlling the drive signal generating means and the radio wave current generating means;
A surgical apparatus comprising: An ultrasonic transducer capable of generating ultrasonic vibration capable of treating living tissue;
Drive signal supply means connected to an active terminal and a neutral terminal provided in the ultrasonic transducer and capable of supplying a drive signal for driving the ultrasonic transducer;
The ultrasonic vibration for transmitting the ultrasonic vibration from the ultrasonic vibrator, which is formed of a conductive member so as to be electrically connectable to the neutral terminal of the ultrasonic vibrator and driven by the drive signal. A probe mechanically coupled to the child;
Radio wave current supply means connected to a conductive path of the neutral terminal to which the probe is electrically connected, and capable of supplying a high-band radio wave current that can be discharged to the probe through the conductive path;
Control means capable of controlling the radio wave current generating means and the drive signal generating means;
A surgical apparatus comprising:

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