High-voltage pulse generating circuit and ultrasonic shock wave balloon device

Abstract

The utility model discloses a high-voltage pulse generating circuit and ultrasonic shock wave balloon device, the high-voltage pulse generating circuit comprises a first booster circuit and a second booster circuit which are cascaded, the first booster circuit comprises a power supply module, a drive circuit and a transformer, one end of the drive circuit is connected with the power supply module, and the other end of the drive circuit is connected with the transformer. The output end of the transformer is connected with the input end of the second booster circuit, and the input end of the transformer is further connected with the input voltage; the driving circuit is used for receiving the PWM control signal output by the power supply module, generating a driving signal according to the PWM control signal and sending the driving signal to the transformer; the transformer is used for boosting the input voltage according to the driving signal to obtain an intermediate voltage and sending the intermediate voltage to the second boosting circuit; and the second booster circuit is used for boosting the intermediate voltage to obtain a target voltage.

Description

Technical Field

[0001] The utility model relates to the technical field of shock wave balloons, in particular to a high-voltage pulse generating circuit and an ultrasonic shock wave balloon device. Background Art

[0002] With the development of medical technology, ultrasonic shock wave balloon technology has become an important means for treating cardiovascular diseases such as vascular stenosis. It achieves the treatment purpose by generating high-voltage pulses to fragment calcified plaques.

[0003] In related technologies, for the high-voltage pulse generating circuit of an ultrasonic shock wave balloon, a high-voltage package is usually used or a high-power transformer is directly used to boost the voltage to the target voltage. Here, if a high-voltage package is used for boosting, the boosting and protection completely depend on the supplier of the high-voltage package, and it is difficult to ensure the reliability and safety of boosting. If a high-power transformer and a drive circuit are used for boosting, there are extremely high requirements for the components of the drive circuit itself, and the required power is large, resulting in relatively serious heating of the components, and there are also safety risks. Summary of the Utility Model

[0004] The utility model provides a high-voltage pulse generating circuit and an ultrasonic shock wave balloon device.

[0005] The technical solution of the utility model is realized as follows:

[0006] The utility model provides a high-voltage pulse generating circuit. The high-voltage pulse generating circuit includes a first boosting circuit and a second boosting circuit which are cascaded. The first boosting circuit includes a power supply module, a drive circuit and a transformer. One end of the drive circuit is connected to the power supply module, and the other end is connected to the input end of the transformer. The output end of the transformer is connected to the input end of the second boosting circuit, and the input end of the transformer is also connected to an input voltage.

[0007] The drive circuit is used to receive a Pulse-Width Modulation (PWM) control signal output by the power supply module, generate a drive signal according to the PWM control signal, and send the drive signal to the transformer.

[0008] The transformer is used to boost the input voltage according to the drive signal to obtain an intermediate voltage, and send the intermediate voltage to the second boosting circuit.

[0009] The second boosting circuit is used to boost the intermediate voltage to obtain a target voltage.

[0010] In some embodiments, the drive circuit includes a first switching transistor, a second switching transistor, and a current sensing resistor. A first end of the first switching transistor is connected to the power supply module, a second end is connected to an input end of the transformer, and a third end is grounded via the current sensing resistor. A first end of the second switching transistor is connected to the power supply module, a second end is connected to the input end of the transformer, and a third end is grounded via the current sensing resistor.

[0011] In some embodiments, the drive circuit further includes a feedback circuit. The feedback circuit includes a comparator. A positive input end of the comparator is connected to an input end of the current sensing resistor, a negative input end is connected to a reference voltage, and an output end is connected to the power supply module.

[0012] In some embodiments, the transformer includes a primary coil and a secondary coil. The primary coil includes a first coil and a second coil.

[0013] A terminal of the first coil that has the same name as the secondary coil is connected to the second end of the first switching transistor, and a terminal of the first coil that has the opposite name to the secondary coil is connected to the input voltage. A terminal of the second coil that has the opposite name to the secondary coil is connected to the second end of the second switching transistor, and a terminal of the second coil that has the same name as the secondary coil is connected to the input voltage.

[0014] In some embodiments, the first boost circuit further includes a rectifying circuit. An input end of the rectifying circuit is connected to the secondary coil, and an output end is connected to an input end of the second boost circuit.

[0015] In some embodiments, the second boost circuit includes a Marx generator circuit. The Marx generator circuit includes a plurality of parallel capacitor branches. One end of each circuit branch is connected to the output end of the rectifying circuit, and the other end is grounded.

[0016] The present utility model further provides an ultrasonic shock wave balloon device, characterized in that the ultrasonic shock wave balloon device includes an operating handle and a high-voltage pulse generating circuit as described in any one of the foregoing items provided in the operating handle.

[0017] In some embodiments, the ultrasonic shock wave balloon device further includes a catheter body. A shock wave balloon is provided at one end of the catheter body, and the operating handle is provided at the other end.

[0018] In some embodiments, the device further includes a battery module. The battery module is provided inside or outside the operating handle.

[0019] In some embodiments, a display module is further provided on the operating handle.

[0020] The present utility model provides a high-voltage pulse generating circuit and an ultrasonic shock wave balloon device. The high-voltage pulse generating circuit includes a first boosting circuit and a second boosting circuit connected in cascade. The first boosting circuit includes a power supply module, a driving circuit, and a transformer. One end of the driving circuit is connected to the power supply module, and the other end is connected to the input end of the transformer. The output end of the transformer is connected to the input end of the second boosting circuit, and the input end of the transformer is also connected to an input voltage. The driving circuit is configured to receive a PWM control signal output by the power supply module, generate a driving signal according to the PWM control signal, and send the driving signal to the transformer. The transformer is configured to boost the input voltage according to the driving signal to obtain an intermediate voltage, and send the intermediate voltage to the second boosting circuit. The second boosting circuit is configured to boost the intermediate voltage to obtain a target voltage.

[0021] It can be seen that in the present utility model, the high-voltage pulse generating circuit realizes the boosting process of the input voltage through two-stage boosting, that is, first boosts the input voltage to an intermediate voltage through the first boosting circuit, and then further boosts the intermediate voltage to the target voltage through the second boosting circuit. Compared with directly using a high-voltage package or a high-power transformer to boost the input voltage to the target voltage, this two-stage boosting process can reduce power loss to solve the problem of component heating, and can also ensure the stability of the boosting process, effectively improving the reliability and safety of the circuit. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a high-voltage pulse generating circuit provided by the present utility model;

[0023] Figure 2 It is a schematic structural diagram of another high-voltage pulse generating circuit provided by the present utility model;

[0024] Figure 3 It is a schematic structural diagram of yet another high-voltage pulse generating circuit provided by the present utility model;

[0025] Figure 4 It is a schematic structural diagram of a Marx generator circuit provided by the present utility model;

[0026] Figure 5 It is a schematic structural diagram of an ultrasonic shock wave balloon device provided by the present utility model;

[0027] Figure 6 It is a schematic structural diagram of another ultrasonic shock wave balloon device provided by the present utility model. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The present invention provides a high-voltage pulse generating circuit, which can be applied to an ultrasonic shock wave balloon device for treating cardiovascular diseases such as vascular stenosis.

[0031] Figure 1 The following is a schematic structural diagram of a high-voltage pulse generating circuit provided by the present invention, as Figure 1 shown, the high-voltage pulse generating circuit 1 includes a first boosting circuit 10 and a second boosting circuit 11 arranged in cascade. Here, the first boosting circuit 10 is used to complete the first-stage boosting process, and the second boosting circuit 11 is used to complete the second-stage boosting process.

[0032] In practical applications, the voltage can be boosted to 500 - 1500V (for example, 1000V) through the first boosting circuit 10, and further boosted to 1000 - 8000V (for example, 3000V) through the second boosting circuit 11.

[0033] Next, on the basis of Figure 1 , in conjunction with Figure 2 an exemplary description of the above boosting process will be given.

[0034] Figure 2 The following is another schematic structural diagram of a high-voltage pulse generating circuit provided by the present invention, as Figure 2 shown, the above-mentioned first boosting circuit 10 includes a power supply module 101, a driving circuit 102, and a transformer 103. One end of the driving circuit 102 is connected to the power supply module 101, the other end is connected to the input end of the transformer 103, and the output end of the transformer 103 is connected to the input end of the second boosting circuit 11;

[0035] The driving circuit 102 is used to receive the PWM control signal output by the power supply module 101, generate a driving signal according to the PWM control signal, and send the driving signal to the transformer 103;

[0036] The transformer 103 is used to boost the input voltage according to the driving signal to obtain an intermediate voltage, and send the intermediate voltage to the second boosting circuit 11;

[0037] The second boosting circuit 11 is used to boost the intermediate voltage to obtain the target voltage.

[0038] In the present utility model, the input end of the transformer 103 is also connected to the input voltage; here, the input voltage can be the voltage provided by the battery module connected to the power supply module 101.

[0039] Exemplarily, the power supply module 101 may include a power management chip and its peripheral circuits. Among them, the power management chip can generate a PWM control signal with a certain frequency and duty cycle and output it to the drive circuit 102; here, the model of the power management chip is not limited.

[0040] In some embodiments, referring to Figure 2 and Figure 3 , the drive circuit 102 may include a first switching tube Q11, a second switching tube Q12, and a current detection resistor R53. The first end of the first switching tube Q11 is connected to the power supply module 101, the second end is connected to the input end of the transformer 103, and the third end is grounded through the current detection resistor R53. The first end of the second switching tube Q12 is connected to the power supply module 101, the second end is connected to the input end of the transformer 103, and the third end is grounded through the current detection resistor R53.

[0041] Exemplarily, the first switching tube Q11 and the second switching tube Q12 may be Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs), simply referred to as MOS tubes.

[0042] In one embodiment, the first switching tube Q11 and the second switching tube Q12 may be N-type MOS tubes. At this time, the first ends of the first switching tube Q11 and the second switching tube Q12 are gates, the second ends are drains, and the third ends are sources.

[0043] Exemplarily, referring to Figure 3 , the first end of the first switching tube Q11 is electrically connected to the power supply module 101 through the parallel voltage dividing resistors R51 and R54; the first end of the second switching tube Q12 is electrically connected to the power supply module 101 through the parallel voltage dividing resistors R52 and R55.

[0044] In the present utility model, the power supply module 101 is connected to the first ends of the first switching tube Q11 and the second switching tube Q12 to control the working states of the first switching tube Q11 and the second switching tube Q12.

[0045] Exemplarily, the power supply module 101 outputs a PWM control signal to the first switching tube Q11 and the second switching tube Q12. The first switching tube Q11 and the second switching tube Q12 are in the closed state when the PWM control signal is at a high level, and the first switching tube Q11 and the second switching tube Q12 are in the open state when the PWM control signal is at a low level.

[0046] In some embodiments, referring to Figure 2 and Figure 3 , the drive circuit 102 further includes a feedback circuit. The feedback circuit includes a comparator U1. The positive input terminal of the comparator U1 is connected to the input terminal of the current detection resistor R53 (corresponding to Figure 3 I_T in

[0047] ), the negative input terminal is connected to the reference voltage VREF, and the output terminal is connected to the power supply module 101.

[0048] Exemplarily, the reference voltage VREF is the reference voltage provided by the power management chip in the power supply module 101; the negative input terminal of the comparator U1 is connected to the reference voltage VREF, that is, the voltage of the negative input terminal of the comparator U1 is the reference voltage VREF.

[0048] Exemplarily, it can be seen from Figure 3 that when the first switching transistor Q11 and the second switching transistor Q12 are in the closed state, the source current of the first switching transistor Q11 and the second switching transistor Q12 flows through the current detection resistor R53, generating a voltage across the current detection resistor R53. This voltage is the voltage of the positive input terminal of the comparator U1; after obtaining the voltage of the positive input terminal, the comparator U1 compares the voltage of the positive input terminal with the reference voltage VREF and controls the level state of the voltage signal output to the power supply module 101 according to the comparison result; the power management chip in the power supply module 101 can control whether to cut off the output of the PWM control signal according to the level state of this voltage signal.

[0049] It can be understood that when the current flowing through the current detection resistor R53 becomes abnormally large, the voltage generated across the current detection resistor R53 will also increase accordingly, that is, the voltage of the positive input terminal of the comparator U1 increases accordingly. At this time, the voltage of the positive input terminal of the comparator U1 is greater than the reference voltage VREF, and the voltage signal output by the comparator U1 to the power supply module 101 will flip from low level to high level. When the power management chip detects that the voltage signal flips from low level to high level, it will cut off the output of the PWM control signal, thereby protecting the first boost circuit 10; at this time, the first switching transistor Q11 and the second switching transistor Q12 do not receive the PWM control signal output by the power supply module 101.

[0050] It can be seen that in the present invention, by setting the current detection resistor R53 and the feedback circuit in the first boost circuit, it is possible to ensure a quick circuit switch in case of an abnormal situation in the first boost circuit 10 and ensure the safety of the boost process.

[0051] In the present invention, the power supply module 101, the first switching transistor Q11, the second switching transistor Q12, and the transformer 103 constitute a push-pull boost circuit.

[0052] In some embodiments, referring to Figure 3, the transformer 103 includes a primary coil and a secondary coil. The primary coil includes a first coil T1 and a second coil T2. The same-named end of the first coil T1 relative to the secondary coil is connected to the second end of the first switching transistor Q11, and the opposite-named end of the first coil T1 relative to the secondary coil is connected to the input voltage VCC. The opposite-named end of the second coil relative to the secondary coil is connected to the second end of the second switching transistor, and the same-named end of the second coil relative to the secondary coil is connected to the input voltage VCC.

[0053] In the present utility model, when the first switching transistor Q11 and the second switching transistor Q12 are in the closed state, a driving signal is generated according to the PWM control signal and sent to the primary coil of the transformer 103. At this time, a voltage is generated in the primary coil of the transformer 103, causing a voltage to be generated in the secondary coil of the transformer 103. Therefore, by controlling the frequency and duty cycle of the PWM control signal, boosting of the input voltage VCC with different amplitudes can be achieved.

[0054] In some embodiments, referring to Figure 3 , the first boosting circuit may further include a rectifying circuit 105. The input end of the rectifying circuit 105 is connected to the secondary coil, and the output end is connected to the input end of the second boosting circuit 11;

[0055] Exemplarily, the rectifying circuit 105 is disposed between the secondary coil of the transformer 103 and the second boosting circuit 11, and it may include a plurality of rectifying diodes; the rectifying circuit 105 is used to rectify the alternating current boosted by the transformer 103 into direct current to complete the first-stage boosting process; wherein, the output voltage of the rectifying circuit 105 is the intermediate voltage.

[0056] In some embodiments, referring to Figure 2 and Figure 4 , the second boosting circuit 11 includes a Marx generator circuit 104. The Marx generator circuit 104 includes a plurality of parallel capacitor branches. One end of each circuit branch is connected to the output end of the rectifying circuit 105 (corresponding to Figure 4 HV therein), and the other end is grounded.

[0057] Exemplarily, the Marx generator circuit 104 may further include a plurality of switches respectively connected in parallel with the plurality of capacitor branches. Referring to Figure 4 , in the case where the Marx generator circuit 104 includes three parallel capacitor branches, the Marx generator circuit further includes a switch S1, a switch S2, and a switch S3.

[0058] Further, when switches S1, S2, and S3 are in the off state, the intermediate voltage after being boosted and rectified by the first boost circuit 10 will charge capacitors C86, C87, and C88 in the Marx generator circuit 104 respectively, and charge them to the voltage value output by the rectifier circuit 105 in the first boost circuit 10, that is, the intermediate voltage; when the Marx generator circuit 104 operates, switches S1, S2, and S3 will be in the on state. At this time, capacitors C86, C87, and C88 will discharge in series, and the intermediate voltage will be superimposed three times and output, thus completing the second-stage boosting process.

[0059] Exemplarily, when the intermediate voltage is 1000V, the Figure 4 shown Marx generator circuit 104 performs a second-stage boost on this intermediate voltage, and the target voltage obtained is 3000V.

[0060] It should be noted that the Marx generator circuit 104 can select capacitors with a relatively small capacitance value, which can ensure that the second-stage boosting process can be completed while making the released energy not too high, ensuring the stability and reliability of the boosting process.

[0061] The present invention provides a high-voltage pulse generating circuit. The high-voltage pulse generating circuit includes a first boost circuit and a second boost circuit arranged in cascade. The first boost circuit includes a power supply module, a drive circuit, and a transformer. One end of the drive circuit is connected to the power supply module, and the other end is connected to the input end of the transformer. The output end of the transformer is connected to the input end of the second boost circuit, and the input end of the transformer is also connected to the input voltage; the drive circuit is used to receive the PWM control signal output by the power supply module, generate a drive signal according to the PWM control signal, and send the drive signal to the transformer; the transformer is used to boost the input voltage according to the drive signal to obtain an intermediate voltage, and send the intermediate voltage to the second boost circuit; the second boost circuit is used to boost the intermediate voltage to obtain a target voltage.

[0062] It can be seen that in the present invention, the high-voltage pulse generating circuit realizes the boosting process of the input voltage through two-stage boosting, that is, first boosts the input voltage to the intermediate voltage through the first boost circuit, and then further boosts the intermediate voltage to the target voltage through the second boost circuit; compared with directly using a high-voltage package or using a high-power transformer to boost the input voltage to the target voltage, this two-stage boosting process can reduce power loss to solve the problem of component heating, and can also improve the stability of the boosting process, effectively improving the reliability and safety of the circuit.

[0063] Based on the foregoing embodiments, the present invention further provides an ultrasonic shock wave balloon device. Figure 5 It is a schematic diagram of the composition of the ultrasonic shock wave balloon device provided by the present invention, asFigure 5 As shown, the ultrasonic shock wave balloon device 20 includes an operation handle 21 and a high-voltage pulse generating circuit 1 provided in the operation handle as provided in any previous embodiment.

[0064] In some embodiments, referring to Figure 5 and Figure 6 , the ultrasonic shock wave balloon device 20 further includes a catheter body 22. One end of the catheter body 22 is provided with a shock wave balloon 23, and the other end is provided with an operation handle 21.

[0065] In some embodiments, the above ultrasonic shock wave balloon device 20 further includes a battery module for providing the input voltage VCC in the high-voltage pulse generating circuit 1.

[0066] It should be noted that the battery module is provided inside or outside the operation handle 21; that is, the battery module can adopt an external or internal design. Among them, when the battery module adopts an external design, the battery module can be connected to the hand-held handle 21 through a cable for quick replacement or charging when the power is exhausted; here, the type of the battery module is not limited. For example, the battery module can be a rechargeable battery, a dry battery, or a storage battery, etc.

[0067] Exemplarily, to increase the operating time of the ultrasonic shock wave balloon device 20, the battery module can also adopt a stacked design, that is, multiple battery modules can be stacked according to actual usage requirements to provide the input voltage VCC.

[0068] Exemplarily, a display module is further provided on the operation handle 21 for providing indication information; here, the content of the indication information is not specifically limited. For example, the indication information can be the remaining number of uses.

[0069] In practical applications, an indicator light or a voice reminder unit can also be provided on the operation handle 21 for reminding the usage status of the ultrasonic shock wave balloon device 20; here, the usage status can include: the operating status and the non-operating status.

[0070] As in the previous embodiment, the high-voltage pulse generating circuit includes a first boost circuit and a second boost circuit connected in cascade. The first boost circuit includes a power supply module, a drive circuit, and a transformer. One end of the drive circuit is connected to the power supply module, and the other end is connected to the input end of the transformer. The output end of the transformer is connected to the input end of the second boost circuit, and the input end of the transformer is also connected to the input voltage;

[0071] The drive circuit is configured to receive the PWM control signal output by the power supply module, generate a drive signal according to the PWM control signal, and send the drive signal to the transformer;

[0072] A transformer is used to boost an input voltage according to a driving signal to obtain an intermediate voltage and send the intermediate voltage to a second boosting circuit;

[0073] The second boosting circuit is used to boost the intermediate voltage to obtain a target voltage.

[0074] As in the foregoing embodiment, the driving circuit includes a first switching transistor, a second switching transistor, and a current sensing resistor. The first end of the first switching transistor is connected to a power supply module, the second end is connected to the input end of the transformer, and the third end is grounded through the current sensing resistor. The first end of the second switching transistor is connected to the power supply module, the second end is connected to the input end of the transformer, and the third end is grounded through the current sensing resistor.

[0075] As in the foregoing embodiment, the driving circuit further includes a feedback circuit. The feedback circuit includes a comparator. The positive input end of the comparator is connected to the input end of the current sensing resistor, the negative input end is connected to a reference voltage, and the output end is connected to the power supply module.

[0076] As in the foregoing embodiment, the transformer includes a primary coil and a secondary coil. The primary coil includes a first coil and a second coil. The end of the first coil having the same name as the secondary coil is connected to the second end of the first switching transistor, and the end of the first coil having the opposite name to the secondary coil is connected to the input voltage; the end of the second coil having the opposite name to the secondary coil is connected to the second end of the second switching transistor, and the end of the second coil having the same name as the secondary coil is connected to the input voltage.

[0077] As in the foregoing embodiment, the first boosting circuit further includes a rectifying circuit. The input end of the rectifying circuit is connected to the secondary coil, and the output end is connected to the input end of the second boosting circuit.

[0078] As in the foregoing embodiment, the second boosting circuit includes a Marx generator circuit. The Marx generator circuit includes a plurality of parallel capacitor branches. One end of each circuit branch is connected to the output end of the rectifying circuit, and the other end is grounded.

[0079] It should be noted that the relevant circuit structure diagrams provided in the present invention are not limited to the Figure 3 、 Figure 4 circuit structures described above. The present invention makes no limitation. The above are only embodiments of the present invention, but do not limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent substitution on some of the technical features. Any equivalent structure made by using the content of the specification and drawings of the present invention, directly or indirectly applied to other related technical fields, is similarly within the scope of the patent protection of the present invention.

[0080] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present utility model. Therefore, the "in one embodiment" or "in an embodiment" that appears throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present utility model, the magnitude of the serial numbers of the above processes does not mean the sequence of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the present utility model. The serial numbers of the present utility model above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0081] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A high voltage pulse generating circuit, characterized in that: The high-voltage pulse generating circuit comprises a first boost circuit and a second boost circuit which are cascaded, wherein the first boost circuit comprises a power module, a drive circuit and a transformer, one end of the drive circuit is connected to the power module, and the other end is connected to the input end of the transformer, the output end of the transformer is connected to the input end of the second boost circuit, and the input end of the transformer is also connected to the input voltage; The driving circuit is used to receive the PWM control signal output by the power module, generate a driving signal according to the PWM control signal, and send the driving signal to the transformer; The transformer is used to boost the input voltage according to the driving signal to obtain an intermediate voltage, and send the intermediate voltage to the second boost circuit; The second boost circuit is used to boost the intermediate voltage to obtain a target voltage.

2. The high voltage pulse generating circuit according to claim 1, characterized in that: The driving circuit includes a first switching tube, a second switching tube and a current-sensing resistor. The first end of the first switching tube is connected to the power module, the second end is connected to the input end of the transformer, and the third end is grounded via the current-sensing resistor. The first end of the second switching tube is connected to the power module, the second end is connected to the input end of the transformer, and the third end is grounded via the current-sensing resistor.

3. The high voltage pulse generating circuit according to claim 2, characterized in that: The driving circuit also includes a feedback circuit, which includes a comparator. The positive input terminal of the comparator is connected to the input terminal of the current sensing resistor, the negative input terminal is connected to the reference voltage, and the output terminal is connected to the power supply module.

4. The high voltage pulse generating circuit according to claim 3, characterized in that: The transformer comprises a primary coil and a secondary coil, wherein the primary coil comprises a first coil and a second coil. The same-name end of the first coil relative to the secondary coil is connected to the second end of the first switch tube, and the opposite-name end of the first coil relative to the secondary coil is connected to the input voltage; the opposite-name end of the second coil relative to the secondary coil is connected to the second end of the second switch tube, and the same-name end of the second coil relative to the secondary coil is connected to the input voltage.

5. The high voltage pulse generating circuit according to claim 4, characterized in that: The first boost circuit further includes a rectifier circuit, wherein an input end of the rectifier circuit is connected to the secondary coil, and an output end of the rectifier circuit is connected to an input end of the second boost circuit.

6. The high voltage pulse generating circuit according to claim 5, characterized in that: The second boost circuit comprises a Marx generator circuit, which comprises a plurality of capacitor branches connected in parallel, one end of each circuit branch is connected to the output end of the rectifier circuit, and the other end is grounded.

7. An ultrasonic shock wave balloon device, characterized in that: The ultrasonic shock wave balloon device includes an operating handle and a high-voltage pulse generating circuit as described in any one of claims 1 to 6 arranged in the operating handle.

8. The ultrasonic shock wave balloon device according to claim 7, characterized in that: The ultrasonic shock wave balloon device also includes a catheter body, one end of which is provided with a shock wave balloon, and the other end of which is provided with the operating handle.

9. The ultrasonic shock wave balloon device according to claim 7, characterized in that: The ultrasonic shock wave balloon device also includes a battery module, and the battery module is arranged inside or outside the operating handle.

10. The ultrasonic shock wave balloon device according to claim 7, characterized in that: The operating handle is also provided with a display module.

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