阅读说明：本技术 一种用于泌尿系统超声设备中的多频率超声发生系统 (Multi-frequency ultrasonic generation system used in urinary system ultrasonic equipment ) 是由 费兴伟 于 2021-07-30 设计创作，主要内容包括：本公开内容公开了一种用于泌尿系统超声设备中的多频率超声发生系统,其包括一信号采集单元、一信号发生单元和一微处理单元,所述信号发生单元中包括一控制开关模块,所述控制开关模块接收所述微处理单元的指令；以及与所述控制开关模块电连接的N个并联的激励电路,且所述信号发生单元集成在单一的芯片上；所述N个并联的激励电路能生成N个频率,所述N为大等于2的整数；所述生成的频率中至少包含55-70kHz的频率用于泌尿系统碎石。本公开内容实现了主机功能集成化,实现了高低频输出模式,减小设备体积,特别是实现了泌尿系统的高频碎石成功率,具有广阔的医疗应用前景。(The present disclosure discloses a multi-frequency ultrasound generating system for use in an ultrasound device of a urinary system, which includes a signal collecting unit, a signal generating unit and a micro-processing unit, wherein the signal generating unit includes a control switch module, and the control switch module receives an instruction of the micro-processing unit; the control switch module is electrically connected with the signal generating unit, and N excitation circuits which are connected in parallel are electrically connected with the control switch module; the N parallel excitation circuits can generate N frequencies, wherein N is an integer which is greater than or equal to 2; the generated frequency at least comprises 55-70kHz frequency used for urinary system lithotripsy. The high-frequency lithotripsy control system realizes the integration of functions of the host, realizes a high-frequency and low-frequency output mode, reduces the volume of equipment, particularly realizes the high-frequency lithotripsy success rate of a urinary system, and has wide medical application prospect.)

1. A multi-frequency ultrasound generation system for use in a urological ultrasound apparatus, comprising: the multi-frequency ultrasonic generating system comprises a signal acquisition unit, a signal generating unit and a micro-processing unit, wherein the signal acquisition unit and the signal generating unit are respectively and electrically connected with the micro-processing unit;

the signal generating unit comprises a control switch module which receives the instruction of the microprocessing unit;

the control switch module is electrically connected with the signal generating unit, and N excitation circuits which are connected in parallel are electrically connected with the control switch module;

the N parallel excitation circuits can generate N frequencies, wherein N is an integer which is greater than or equal to 2; the generated frequency at least comprises 55-70kHz frequency used for urinary system lithotripsy.

2. The multi-frequency ultrasound generation system of claim 1, wherein the generated frequencies comprise at least 25kHz and 55kHz frequencies.

3. The multiple frequency ultrasound generation system of claim 1, wherein the excitation circuit has a frequency adaptive adjustment subcircuit.

4. The multiple frequency ultrasound generation system of any of claims 1-3, wherein said signal generation unit further comprises an auto-detect excitation circuit in parallel with said N excitation circuits.

5. The multi-frequency ultrasound generating system of any of claims 1-4, wherein the signal acquisition module comprises a signal communication module, an AD conversion module and a modulation module connected in sequence.

6. The multiple frequency ultrasound generation system of any of claims 1-5, wherein the signal acquisition unit, signal generation unit, and the microprocessor unit are integrated on a circuit board.

7. The multiple frequency ultrasound generation system of any of claims 1-6, wherein said signal generation units provide different operating frequencies through a common multiple frequency output port.

8. A urological ultrasound device having a host module, a transducer module, and an ultrasound execution module, the host module having the multi-frequency ultrasound generation system of claims 1-7.

9. The urinary system ultrasound device of claim 8, wherein the transducer module is a multi-frequency transducer that transmits frequencies that can be switched.

10. The urological ultrasound device according to claim 8 or 9, wherein the output frequency is 50-70kHz and the amplitude range is 25-50 μ ι η.

Technical Field

The present disclosure relates to a multi-frequency ultrasound generation system, and more particularly, to a multi-frequency ultrasound generation system for use in urological ultrasound devices.

Background

In recent years, the operation for treating urinary calculus is mainly an invasive minimally invasive operation, and in such a minimally invasive operation, ultrasonic waves are commonly used as an energy source in a lithotripter. In the existing ureteral lithotripter adopting ultrasonic waves as an energy source, the frequency of the used ultrasonic waves is usually not higher than 25kHz, and in the existing ureteral lithotripter, an ultrasonic generator (host) usually only outputs one frequency and is provided with a surgical instrument with a fixed frequency.

Aiming at the technical problems of single function and single frequency of the ureteral ultrasonic lithotripsy device and the requirement of functional integration of a main machine in an operation, various attempts are made by the technical personnel in the field.

An ultrasonic ureteral lithotripter is disclosed in prior art 1, for example, CN112244939A, and fig. 1 shows a ureteral lithotripter with integrated detection, lithotripter and power variation in one ultrasonic ureteral lithotripter.

In prior art 2, a ureter ultrasonic lithotripsy device is disclosed as CN207236840U, fig. 2 shows that the lithotripsy assembly of the lithotripsy device further comprises an air pressure trajectory and an ultrasonic transducer, which can overcome the limitation of a single lithotripsy mode according to the diversity of stones, realize efficient and effective treatment of stones with all components, and meet the lithotripsy requirements of different stones with one device.

In the prior art, for example, an ultrasonic lithotripsy apparatus is provided, in which two ultrasonic frequency generation modules are integrated into one host. One frequency for lithotripsy and one frequency for ultrasonic cutting and hemostasis. However, in the prior art, each frequency module of the host is usually respectively configured and needs to be configured with different start switches, so that different frequencies correspond to different functional circuit boards, and thus, on one hand, a larger internal accommodating space is needed to result in a larger volume of the host device, and on the other hand, due to the plurality of jacks existing in the host, the situation that the execution device (such as a stone crushing device) is not matched with the jacks exists, which causes the phenomena of invalid output and jack damage.

More outstanding is that the stone breaking frequency used in the prior ureter stone breaking equipment is lower, and the characteristics of large probe amplitude and large probe diameter are assisted, so that the side wall of the ureter can be damaged; on the other hand, the stones in the ureter are easy to slip due to the overlarge amplitude of the probe, so that the stone breaking success rate of ultrasonic stone breaking in the ureter stone operation is further low. It is therefore desirable to design an ultrasonic ureterolit device that improves the success rate of lithotripsy in ureterolit surgery and has a composite function and is frequency tunable.

The present disclosure is directed to the above technical problems, and an efficient ultrasonic lithotripsy apparatus is designed, on one hand, the thinking formula of frequency selection in the field is changed, the setting of probe amplitude is coordinated, and the success rate of lithotripsy treatment on calculus in ureter is greatly improved by improving the structure and parameters of components of the ultrasonic lithotripsy apparatus; on the other hand, various functions are integrated in the equipment, a high-low frequency output mode is realized, and an optimal gravel scheme can be selected and matched according to different gravel scenes; on the other hand, the operation equipment can be automatically identified, the output frequency is automatically matched, the possibility of misoperation is effectively avoided, the operation efficiency is improved, and the method has a wide medical application prospect.

Disclosure of Invention

A brief summary of the disclosure is provided below in order to provide a basic understanding of some aspects of the disclosure. It should be understood that this summary is not an exhaustive overview of the disclosure. It is not intended to identify key or critical elements of the disclosure or to delineate the scope of the disclosure. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

According to an aspect of the present disclosure, a multi-frequency ultrasound generating system for use in a urinary system ultrasound apparatus is provided, which includes a signal acquisition unit, a signal generation unit, and a micro-processing unit, wherein the signal acquisition unit and the signal generation unit are electrically connected to the micro-processing unit respectively; the signal generating unit comprises a control switch module which receives the instruction of the microprocessing unit; the control switch module is electrically connected with the signal generating unit, and N excitation circuits which are connected in parallel are electrically connected with the control switch module; the N parallel excitation circuits can generate N frequencies, wherein N is an integer which is greater than or equal to 2; the generated frequency at least comprises 55-70kHz frequency used for urinary system lithotripsy.

Further wherein the generated frequencies comprise at least 25kHz and 55kHz frequencies.

Further wherein the excitation circuit has a frequency adaptive adjustment sub-circuit.

Further, the signal generating unit is also provided with an automatic detection exciting circuit which is connected with the N exciting circuits in parallel.

Further, the signal acquisition module comprises a signal communication module, an AD conversion module and a modulation module which are connected in sequence.

Further, the signal acquisition unit, the signal generation unit and the micro-processing unit are integrated on a circuit board.

Further, the signal acquisition unit collects feedback signals of an execution unit in the urinary system ultrasonic device.

Further wherein the signal generating units provide different operating frequencies through a common multi-frequency output port.

According to an aspect of the present disclosure, there is provided a urinary system ultrasound device having a host module, a transducer module, and an ultrasound execution module, the host module having a multi-frequency ultrasound generation system as described above.

Further wherein the transducer module is a multi-frequency transducer whose transmit frequency can be switched.

Further wherein said output frequency is 50-70kHz and said amplitude is in the range of 25-50 μm.

The scheme of the disclosure can at least help to realize one of the following effects: the success rate of calculus breaking treatment on the calculus in the ureter is greatly improved; multiple functions are combined in a single machine, so that a high-frequency and low-frequency output mode is realized; the automatic identification of the execution equipment can be carried out, the output frequency is automatically matched, the possibility of misoperation is effectively avoided, and the operation efficiency is improved.

Drawings

The above and other objects, features and advantages of the present disclosure will be more readily understood from the following detailed description of the present disclosure with reference to the accompanying drawings. The drawings are only for the purpose of illustrating the principles of the disclosure. The dimensions and relative positioning of the elements in the figures are not necessarily drawn to scale.

Figure 1 shows a ureteral ultrasonic lithotripsy apparatus of prior art 1

Figure 2 shows a prior art 2 ultrasonic ureterolit apparatus

Fig. 3 shows a schematic overall structure/appearance of an ultrasound device of the present disclosure;

FIG. 4 is a block diagram of a multi-frequency generation system according to an embodiment of the present disclosure

FIG. 5 is a flow chart of the operation of a multiple frequency generation system according to an embodiment of the present disclosure

FIG. 6 is a block diagram of a multi-frequency generation system according to a second embodiment of the present disclosure

FIG. 7 is a flow chart of the operation of a multiple frequency generation system according to an embodiment of the present disclosure

Detailed Description

Exemplary disclosures of the present disclosure will be described hereinafter with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an implementation of the present disclosure are described in the specification. It will be appreciated, however, that in the development of any such actual implementation of the disclosure, numerous implementation-specific decisions may be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Here, it should be further noted that, in order to avoid obscuring the present disclosure by unnecessary details, only the structure of the apparatus closely related to the solution according to the present disclosure is shown in the drawings, and other details not so relevant to the present disclosure are omitted.

It is to be understood that the disclosure is not limited to the described embodiments, as described below with reference to the drawings. Herein, features may be replaced or borrowed, and one or more features may be omitted, where feasible.

Fig. 3 illustrates the overall structure/appearance of a ureteral ultrasound device of the present disclosure. The ultrasonic lithotripsy apparatus includes a host module 1, a transducer 2 (including an ultrasonic transducer unit and horn (not shown)), and an ultrasonic probe 3 (as an ultrasonic surgical performing instrument). The host module 1 is electrically connected with the transducer 2, converts an electric signal into a high-frequency oscillation signal and transmits the high-frequency oscillation signal to the transducer module 2 in the ultrasonic lithotripsy equipment, the ultrasonic transduction unit in the transducer module 2 triggers the amplitude transformer to vibrate mechanically at high frequency, the amplitude transformer is physically connected with the ultrasonic probe 3, the amplitude of the mechanical vibration is amplified under the action of the amplitude transformer, and finally the amplified mechanical vibration is transmitted to the probe part, so that the aim of lithotripsy is fulfilled.

Further, the transducers are multi-frequency transducers with switchable transmission frequencies, the frequency modes of which are controlled by the host module, and for example, the multi-frequency transducers can be designed such that low-frequency transducers are arranged around high-frequency transducers.

The transducer module is internally provided with an amplitude transformer, and because the transducer has the function of converting electric power output from the host module into mechanical power and then transmitting the mechanical power, when the transducer works, alternating-current high voltage is applied to the transducer through a driving circuit, and the piezoelectric ceramic piece of the transducer is synchronously stretched and deformed under the action of an alternating battery to form longitudinal vibration of the transducer, thereby driving the amplitude transformer to vibrate.

Further, the horn is a second-order or third-order horn, and at least one part of the shape of each part of the second-order or third-order horn may be a non-cylinder, and exemplarily, the non-cylinder may be selected from a gourd-shaped body, an hourglass-shaped body or a frustum-shaped body. The parts of the two/three-order horn are arranged in a composite shape combination. For example, the shape of the first, second and third portions of the second-order horn may be selected from the group consisting of the cylinder, the gourd or the hourglass body, so long as at least one of the portions is different from the other two portions. The two/three-order amplitude transformer with the composite shape is more balanced in amplitude coefficient and ultrasonic frequency attenuation, and preferably at least one part of the two/three-order amplitude transformer with the composite shape is a gourd-shaped body, namely the part of the amplitude transformer is provided with an input end surface and an output end surface, the part of the amplitude transformer is also provided with a cross section which is smaller than the areas of the input end surface and the output end surface, and the other cross section which is larger than the areas of the input end surface and the output end surface.

The ultrasound probe 3 comprises at least an elongated probe body portion in close fitting connection with the transducer. The probe body portion has a first end distal to the transducer and a second end proximal to the transducer, and illustratively, the probe body portion may be constructed of an ultrasonic conductive material, such as stainless steel or a titanium alloy material, having a length of about 50-70cm and a diameter of 0.8-1.5 mm. Wherein the length of the probe body is usually set to be about 10cm longer than the operation channel, so that the operation of the near end and the far end can be conveniently realized in the operation.

It should be noted that in the prior art, the ultrasonic frequency of the ultrasonic lithotripsy device of the urinary system is below 25kHz, while the working frequency of 55kHz is used for the purpose of tissue cutting and hemostasis, and no relevant medical device adopting the frequency above 50kHz to perform ureteral lithotripsy is found at present. The present disclosure breaks the 25kHz frequency that is conventionally selected in the art for ultrasonic lithotripsy, with frequencies above 50kHz purposefully selected as the operating frequency for the ultrasonic lithotripsy apparatus of the present disclosure. The ultrasonic lithotripsy apparatus of the present disclosure achieves unexpected technical effects through careful study of frequency parameters, and verification of lithotripsy effects is accomplished in a number of in vitro lithotripsy experiments. The 25kHz frequency conventionally selected in the art for ultrasonic lithotripsy was used as a reference frequency during the validation process in comparison to the frequency settings of the present disclosure.

First, the lithotripsy effect of the ultrasonic lithotripsy apparatus described in the present disclosure was verified by multiple sets of condition settings. The list of amplitude settings required for the same lithotripsy effect at different frequencies is as follows:

table 1: amplitude value required by same lithotripsy effect under different frequencies

As can be seen from table 1, the different frequencies in each group correspond to different set amplitudes, and the values of the amplitudes gradually decrease with increasing frequency, and the lithotripsy effect is assumed to be the same for the different amplitude and frequency settings. Taking the sixth group as an example for illustration, the effect of crushing stones achieved when the ultrasonic frequency is 25kHz and the amplitude is 80 μm (hereinafter referred to as comparative example condition) is assumed to be the same as the effect of crushing stones when the frequency is 55kHz and the amplitude is 16.53 μm (hereinafter referred to as condition one); and the effect was estimated to be the same as that of crushing with a frequency of 70kHz and an amplitude of 10.20 μm (hereinafter referred to as condition II).

However, in the lithotripsy effect verification, the effect of the above-mentioned sets of set frequencies higher than the reference frequency by 25kHz and correspondingly set amplitude sizes in the lithotripsy effect verification is still to be improved. Taking the sixth group as an example, the stone crushing effect of the condition one and the condition two is not better than that of the comparative example. Particularly, in the process of carrying out lithotripsy under the first condition and the second condition, the phenomenon that only part of the surface of the calculus is powdered is often caused, and the interior of the calculus is still not changed. From this, it is considered that the ultrasonic penetration force is small due to the small probe amplitude in the lithotripsy under the first or second condition, and that only a part of the surface of the stone is pulverized.

To further optimize the parameters, the inventors also tried to improve the crushing effect by increasing the frequency without reducing the amplitude during crushing. Specifically, for example, in the case where the frequency is kept constant in both of the conditions one and two, the amplitude is set to the amplitude level described in the condition of the comparative example, that is, the amplitude in both of the conditions one and two is set to 80 μm. In this case, it was found that the speed of crushing stone was greatly increased, but at the same time, it was found that the breakage rate of the probe main body portion of the ultrasonic probe was also greatly increased, which seriously affected the use of the ultrasonic lithotripter. The conditions and test results described above may be the reason in the art that frequencies greater than 25kHz are not used in ultrasonic lithotripsy.

In order to better utilize high-frequency parameters, the inventor overcomes the technical bias, selects the working frequency with the frequency more than 25kHz, optimizes the amplitude parameter, further matches the sub-component structure and the specific structural parameters thereof, particularly matches the arrangement of a second-order amplitude transformer and a third-order amplitude transformer in the equipment, considers the breakage rate and the lithotripsy effect of the ultrasonic probe, designs the ultrasonic lithotripsy equipment suitable for the ureter and the working conditions thereof, and breaks through the technical bias of the existing ultrasonic lithotripsy.

Specifically, the operating frequency is set to 40-80kHz, preferably 50-70kHz, and the amplitude thereof is set to 25-50 μm, preferably 30-40 μm. Illustratively, when the frequency is tuned up to 55kHz, the amplitude of the ultrasonic probe is 40 μm; or when the frequency is adjusted to 60kHz and the amplitude of the ultrasonic probe is 35 mu m; or when the frequency is adjusted to 70kHz and the amplitude of the ultrasonic probe is 30 mu m, on one hand, the ultrasonic lithotripter can ensure that the lithotripsy speed is higher, and on the other hand, the breakage rate of the ultrasonic probe can be ensured to be in an acceptable range.

The inventor respectively adopts parameters of frequency 25 kHz/amplitude 80 μm, frequency 55 kHz/amplitude 40 μm, frequency 60 kHz/amplitude 35 μm and frequency 70 kHz/amplitude 30 μm, and carries out a plurality of groups of durability tests on an ultrasonic probe with diameter of 1.5mm and length of 600mm, and respectively obtains breakage rates corresponding to the probe under different parameters according to the results of the plurality of groups of tests, and the specific data are shown in a table II:

table 2: breakage rate of ultrasonic probe under different frequencies and amplitudes

Test experiments show that when the parameters of the frequency of 55 kHz/amplitude of 40 mu m, the frequency of 60 kHz/amplitude of 35 mu m and the frequency of 70 kHz/amplitude of 30 mu m are used for carrying out the stone breaking, the stone breaking speed is faster than that when the parameters of the frequency of 25 kHz/amplitude of 80 mu m are used for carrying out the stone breaking. Meanwhile, as can be seen from the data in Table 2, when the ultrasonic probe was crushed using the parameters of frequency 55 kHz/amplitude 40 μm, frequency 60 kHz/amplitude 35 μm and frequency 70 kHz/amplitude 30 μm, the breakage rate of the ultrasonic probe was greatly reduced as compared with the breakage rate when the ultrasonic probe was crushed using the parameters of frequency 25 kHz/amplitude 80 μm.

Through the arrangement of the ultrasonic lithotripsy equipment in the disclosure, under the condition of reducing the amplitude, the acting force of the ultrasonic probe on the calculus is reduced, so that the phenomenon that the calculus is pushed by the ultrasonic probe when the existing ultrasonic lithotripsy machine with the use frequency of 25 kHz/amplitude of 80 mu m is used for lithotripsy due to the small size of the calculus in the ureter is effectively avoided; the ultrasonic lithotripsy device disclosed by the disclosure also improves the structure and parameters of the amplitude transformer, and combines the improvement of the ultrasonic frequency, so that the ultrasonic frequency is effectively improved, the energy of the ultrasonic probe is effectively increased, and the ultrasonic lithotripsy device has enough energy to crush the calculus under the condition of avoiding the calculus from moving, and meanwhile, the breakage rate of the probe is also ensured, and the ultrasonic lithotripsy device is greatly convenient to use.

To accommodate the selected frequencies in the re-ureteral ultrasonic lithotripsy apparatus described above, the present disclosure provides corresponding improvements in the host module to achieve single-machine versatility.

The host module 1 includes therein a multiple frequency generation system having a plurality of excitation circuits connected in parallel, the multiple frequency generation system having at least one excitation circuit for generating a frequency output of 40-80 kHz. Preferably, for generating a frequency output of 50-70 kHz. Preferably, the fixed frequency of 55kHz can be output. It will be appreciated that the multiple frequency generation system may also provide different connection ports to enable the 55kHz fixed frequency to be used for achieving intra-ureteral hemostasis, while the 55kHz fixed frequency may be adapted to the ureteral ultrasonic lithotripsy probe 3 for lithotripsy of ureteral stones.

Further, the multiple frequency generation system in the host module 1 has at least one excitation circuit for generating a frequency output of less than or equal to 25kHz, with a preferred output comprising a fixed frequency of 25 kHz. The 25kHz fixed frequency can be adapted to different human/animal body tissues so as to realize different stone crushing functions in the same ultrasonic stone crushing device. Illustratively, the fixed frequency of 25kHz is adapted to a nephroscope ultrasonic lithotripsy probe for lithotripsy of kidney stones.

Furthermore, the host module 1 may be configured with other functional connection ports besides the port for connecting the ultrasonic instrument, and the functional connection ports may be a connection port for connecting a gas bomb lithotripsy device and/or a connection port for connecting a high-frequency electrosurgery device, so as to realize integration of multifunctional surgical treatment devices.

A multi-frequency generation system having multiple parallel excitation circuits is described in further detail below.

Embodiment one

As shown in fig. 4, the multiple frequency generation system includes a signal acquisition unit 101, a signal generation unit 102 and a microprocessor unit 103, wherein the signal generation unit 102 is integrated on at least one chip by adopting a single chip integrated structure. Further, the signal acquisition unit 101, a signal generation unit 102 and a microprocessor unit 103 are integrated on a circuit board.

Specifically, the micro processing unit 103 may be an FPGA control chip for controlling each unit. Illustratively, the micro-processing unit 103 controls the signal acquisition unit 101 and the signal generation unit 102, and then the signal generation unit 102 generates a plurality of frequency signals.

The signal acquisition unit 101 comprises a signal communication module, an AD conversion module and a modulation module. The signal acquisition unit 101 is configured to receive a feedback signal (echo signal), and send back the processed signal after filtering, analog-to-digital signal conversion, and signal amplification.

The signal generating unit 102 includes a control switch module, the control switch module receives an instruction and controls N parallel excitation circuits to generate a specific frequency, N is an integer greater than or equal to 2, and in practice, the number of the parallel excitation circuits can be increased to more than 3 according to requirements, so that the adaptability to different stone types and stone crushing environments is greatly improved. The excitation circuits each have a frequency adaptive adjustment sub-circuit. Exemplary such frequencies include at least 3 frequencies as small as 25kHz, about 50kHz and about 55 kHz.

It is further understood that the multi-frequency generation system may further have a storage module, a display module, a power supply module, an alarm module, and the like.

The operation flow of the multi-frequency generation system is substantially as shown in fig. 5, when in operation, a system power supply is started, an ultrasonic surgical execution unit 200 (including an ultrasonic instrument and a transducer) is connected to a frequency output port of a host, parameters such as the type or power of the ultrasonic instrument are manually selected/input, after the micro-processing unit 103 receives the type of the ultrasonic instrument, the micro-processing unit 103 outputs a control instruction to the signal generation unit 102 according to the type of the ultrasonic instrument connected to the host.

The control switch module in the signal generating unit 102 selects a working frequency adapted to the ultrasonic instrument connected to the host according to the control command, and outputs a corresponding frequency to the ultrasonic surgical executing unit 200 through the corresponding excitation circuit, so that the ultrasonic surgical executing unit 200 starts to work.

The ultrasonic surgical execution unit 200 feeds back an echo signal (for example, a mechanical signal) to a modulation module in the signal acquisition unit 101 while starting to operate, modulates the mechanical signal into an electrical analog signal, then filters, performs analog-to-digital conversion and signal amplification on the modulated electrical analog signal through an AD conversion module, then sends a processed digital signal to the signal communication module, and then sends the processed digital signal from the signal communication module to the micro-processing unit 103, thereby realizing real-time monitoring of the working mode of the ultrasonic surgical execution unit 200.

When there is a deviation, the micro-processing unit 103 instructs the control switch module in the signal generating unit 102 to adaptively adjust the excitation circuit starting frequency to perform corresponding fine adjustment on the excitation circuit signal, so as to ensure that the ultrasonic surgical executing unit 200 can work at a stable and correct frequency.

When an error exists, the micro-processing unit 103 instructs the alarm module to send out a prompt signal such as buzzing through the instruction signal to instruct the system to make an error so as to avoid misoperation in the operation.

It can be understood that, based on the selection of the N excitation circuits connected in parallel and the control switch module, especially, the fixed frequency of 55kHz is adapted to the setting of ultrasonic ureteral calculus crushing, which is different from the single frequency of ultrasonic ureteral calculus crushing below 25kHz set on the existing host machine, the multifunctional ultrasonic apparatus can effectively improve the success rate of ureteral calculus crushing.

It can be further understood that only one multi-frequency output port can be provided on the mainframe of the present disclosure, unlike the existing composite ultrasonic device having N different frequencies not higher than 33kHz, the multifunctional ultrasonic instrument can achieve miniaturization of the device and improve the utilization rate of space.

Further, the multi-frequency output port can be matched with the multi-frequency transducer with switchable transmitting frequency in the disclosure, so that the existing mode of configuring a plurality of transducers at different frequencies is overcome, and the volume of the device is further miniaturized.

Embodiment two

The second embodiment differs from the first embodiment only in that: on the basis of the first embodiment, as shown in fig. 2, an automatic detection excitation circuit is added to the signal generation unit 102, and is used for automatically identifying the ultrasonic resonance frequency of the accessed ultrasonic surgical execution unit 200 and automatically adapting the corresponding excitation circuit to output an ultrasonic excitation signal so as to drive the surgical execution unit. The automatic detection and excitation circuit has an automatic identification function, which helps to avoid input or selection errors when the ultrasonic surgical execution unit 200 is of the type that is accessed by manual input/selection as described in the first embodiment, and further causes subsequent frequency selection output errors, which affect the normal operation of the equipment.

The auto-detection excitation circuit within the signal generation unit 102 is connected in parallel with how many N excitation circuits and each connected to the control switch module.

The multi-frequency generation system generally comprises a power supply for starting the system, an ultrasonic surgical execution unit 200 (comprising an ultrasonic instrument and a transducer) is connected to a frequency output port of a host machine, and the automatic detection excitation circuit is electrically connected. After the automatic detection excitation circuit identifies the ultrasonic resonance frequency of the surgical execution unit connected to the host, a corresponding identification signal is sent to the micro-processing unit 103 through the control switch module. After receiving the identification signal of the type of the ultrasonic instrument, the microprocessor unit 103 sends a control command to the signal generation unit 102 according to the type of the ultrasonic instrument connected to the host.

The control switch module in the signal generating unit 102 selects a working frequency adapted to the ultrasonic instrument connected to the host according to the control command, and outputs a corresponding frequency to the ultrasonic surgical executing unit 200 through the corresponding excitation circuit, so that the ultrasonic surgical executing unit 200 starts to work.

The ultrasonic surgical execution unit 200 feeds back an echo signal (for example, a mechanical signal) to a modulation module in the signal acquisition unit 101 while starting to operate, modulates the mechanical signal into an electrical analog signal, then filters, performs analog-to-digital conversion and signal amplification on the modulated electrical analog signal through an AD conversion module, then sends a processed digital signal to the signal communication module, and then sends the processed digital signal from the signal communication module to the micro-processing unit 103, thereby realizing real-time monitoring of the working mode of the ultrasonic surgical execution unit 200.

When there is a deviation, the micro-processing unit 103 instructs the control switch module in the signal generating unit 102 to adaptively adjust the excitation circuit starting frequency to perform corresponding fine adjustment on the excitation circuit signal, so as to ensure that the ultrasonic surgical executing unit 200 can work at a stable and correct frequency.

When an error exists, the micro-processing unit 103 instructs the alarm module to send out a prompt signal such as buzzing through the instruction signal to instruct the system to make an error so as to avoid misoperation in the operation.

The present disclosure has been described in detail with reference to specific apparatus results and parameters, but it should be apparent to those skilled in the art that the descriptions are illustrative and not intended to limit the scope of the present disclosure. Various modifications and alterations of this disclosure will become apparent to those skilled in the art from the spirit and principles of this disclosure, and such modifications and alterations are also within the scope of this disclosure.