Electromagnetic shock wave source and pressure pulse device

Abstract

The application discloses an electromagnetic shock wave source, which comprises a base, a sealed chamber and electromagnetic units, the number of the electromagnetic units is multiple groups, the coils of the multiple groups of electromagnetic units are arranged at a certain angle, multiple focus points after focusing are combined in different ranges, and a larger focusing area composed of multiple focus domains desired without being limited by the center strength of a single coil can be obtained. Meanwhile, the multiple electromagnetic units are arranged at a certain angle, the output port size of the wave source is larger than that of a single electromagnetic unit, but is much smaller than the accumulation of the output port sizes of the multiple electromagnetic units, the volume of the equipment is reduced under the premise of increasing the focus domain of the electromagnetic shock wave source, and the adaptability of the equipment is improved. The application also provides a pressure pulse equipment comprising the electromagnetic shock wave source, the focus domain of the electromagnetic shock wave source is increased, the electromagnetic shock wave technology can obtain an arbitrary size focus spot, various specific treatment requirements can be met, and the shock wave technology can be adapted to the field requiring large-area treatment and physiotherapy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock wave devices and peripheral facilities thereof, in particular to an electromagnetic shock wave source and a pressure pulse device. BACKGROUND

[0002] Pressure pulse, commonly known as shock wave technology, is first used for extracorporeal lithotripsy and is now widely used in soft tissue injury, orthopedics, rehabilitation physiotherapy, beauty and health care, etc. The shock wave source is the main core component of such devices.

[0003] At present, the shock wave source mainly includes a divergent shock wave source and a focused shock wave source. The divergent shock wave is generated by energy impact, mainly air pressure trajectory or electromagnetic trajectory for treatment. The focused shock wave currently commonly used includes liquid-electric shock wave, electromagnetic shock wave and piezoelectric shock wave. At present, the electromagnetic shock wave source is widely used. The electromagnetic shock wave source is generated by the vibration of a metal film caused by the high-voltage pulse current of a coil to compress water molecules to generate a pressure pulse. The energy is concentrated to the lesion for treatment by focusing. The focusing methods commonly include reflective focusing (parabolic principle), refractive focusing (lens principle) and direct focusing (circular center principle). Regardless of the focusing method, these electromagnetic shock wave sources are only a coil and a focal point, and the effective diameter of the focal point will not exceed 20 mm. It is necessary to make the diameter of the wave source output port very large, for example, more than 150 mm. However, with the expansion of the application range of the shock wave, for example, skin beauty, subcutaneous weight loss, larger area skin burn and ulcer, etc., the application of such a small focal point wave source has great inconvenience and limitation. The miniaturization of the shock wave source and the device is a trend.

[0004] Therefore, how to change the present situation that the electromagnetic shock wave source has a small focusing area and poor adaptability of the pressure pulse device in the prior art has become a problem to be solved by the person skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide an electromagnetic shock wave source to solve the problems in the related art, increase the focusing area of the electromagnetic shock wave source, avoid the overlarge volume of the pressure pulse device and improve the adaptability of the pressure pulse device.

[0006] To achieve the above purpose, the present application provides the following solutions.

[0007] The present application provides an electromagnetic shock wave source, which comprises:

[0008] a base made of an insulating material;

[0009] a sealed chamber filled with water, which is located above the base;

[0010] An electromagnetic unit is arranged between the base and the sealed chamber, the electromagnetic unit comprises a coil, an insulating film and a metal diaphragm, the coil is arranged on the base and connected with an external high-voltage power supply, the insulating film is located on the side of the coil close to the sealed chamber, and the metal diaphragm is located on the side of the insulating film close to the sealed chamber and in contact with the outer wall of the sealed chamber; the electromagnetic units are arranged in multiple groups, and the focusing axes of the electromagnetic units intersect, and the intersection point is located on the side of the base close to the sealed chamber.

[0011] Preferably, the side of the base close to the sealed chamber is a mounting surface, a plurality of mounting grooves are arranged on the mounting surface, the electromagnetic units are arranged in the mounting grooves, the axes of the mounting grooves are collinear with the focusing axes of the electromagnetic units, and the mounting grooves and the electromagnetic units are in one-to-one correspondence.

[0012] Preferably, the side of the base close to the sealed chamber has a plurality of fixing surfaces, the electromagnetic units are arranged on the fixing surfaces, the normal lines of the fixing surfaces are collinear with the focusing axes of the electromagnetic units, and the electromagnetic units and the fixing surfaces are in one-to-one correspondence.

[0013] Preferably, the electromagnetic units are arranged in an array.

[0014] Preferably, the electromagnetic shock wave source further comprises an isolation film and a water bag, the isolation film is arranged on the top of the electromagnetic unit, the edge of the isolation film is connected with the base, the water bag is located above the base, and the edge of the water bag is pressed on the base, and the isolation film, the base and the water bag form the sealed chamber.

[0015] Preferably, the base has a water inlet channel and a water outlet channel, the water inlet channel and the water outlet channel are connected with the sealed chamber, the water inlet channel is connected with a water inlet pipe, the water inlet pipe can be connected with an external water source, the water outlet channel is connected with a water outlet pipe, and the water outlet pipe can be connected with an external collection mechanism.

[0016] The base also has a wiring channel, the base is connected with a high-voltage connector, and the electromagnetic unit can be connected with an external high-voltage power supply through the wiring channel and the high-voltage connector.

[0017] Preferably, the edge of the water bag is pressed on the base by a gland, and the gland is connected with the base.

[0018] A compression ring is further arranged between the gland and the water bag, the compression ring is made of elastic material, and the gland and the compression ring are both annular structures.

[0019] Preferably, the base is connected with a handle.

[0020] Preferably, the handle is a hollow structure, and a pressing plate is arranged in the handle, the pressing plate abuts against the base, and the pressing plate has a hollow structure.

[0021] The application also provides a pressure pulse device comprising the electromagnetic shock wave source.

[0022] The application has the following technical effects relative to the prior art:

[0023] The electromagnetic shock wave source comprises a base, a sealed cavity and electromagnetic units, the base is made of insulating material; the sealed cavity is filled with water and is located above the base; the electromagnetic units are arranged between the base and the sealed cavity, each electromagnetic unit comprises a coil, an insulating film and a metal diaphragm, the coil is arranged on the base and connected to an external high-voltage power supply, the insulating film is located on the side of the coil close to the sealed cavity, and the metal diaphragm is located on the side of the insulating film close to the sealed cavity and in contact with the outer wall of the sealed cavity; the number of the electromagnetic units is multiple groups, and the focusing axes of the electromagnetic units intersect, and the intersection point is located on the side of the base close to the sealed cavity.

[0024] When the coil of the electromagnetic unit is electrified, a pulse current is generated in the coil to form a strong pulse magnetic field, and the metal diaphragm generates a magnetic field in the opposite direction to interact with the magnetic field of the coil to generate a repulsive force to push the metal diaphragm to vibrate, thereby compressing the water molecules of the sealed cavity on the other side of the metal diaphragm to generate a pressure pulse, and the energy is concentrated to the lesion after focusing for treatment. The application arranges multiple groups of electromagnetic units, and the focusing axes of the electromagnetic units have a certain angle, so that the central energy of the pressure pulse generated by the electromagnetic units is still the strongest even if the pressure pulse is not focused. The coils of the multiple groups of electromagnetic units are arranged at a certain angle, and the multiple focal points are combined in different ranges after focusing, so that a larger focusing area composed of multiple focal domains can be obtained without being limited by the central strength of a single coil. Meanwhile, the multiple electromagnetic units are arranged at a certain angle, and the size of the output port of the wave source is larger than that of a single electromagnetic unit, but is much smaller than the cumulative size of the output ports of the multiple electromagnetic units. On the premise of increasing the focal domain of the electromagnetic shock wave source, the volume of the device is reduced, which is conducive to improving the adaptability of the device.

[0025] The application also provides a pressure pulse device comprising the electromagnetic shock wave source, which increases the focal domain of the electromagnetic shock wave source, makes the electromagnetic shock wave technology obtain a focal spot of any size, adapts to various specific treatment needs, and makes the shock wave technology better applied to the fields requiring large-area treatment and physiotherapy, such as skin ulcer, burn, liposuction beauty, etc. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to make the technical scheme of the embodiments of the present application or the related art clearer, the accompanying drawings needed in the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only need to explain the embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0027] Figure 1 Structure schematic diagram of the electromagnetic shock wave source disclosed by the embodiments of the present application;

[0028] Figure 2 Front view schematic diagram of the electromagnetic unit and the base of the electromagnetic shock wave source disclosed by the embodiments of the present application;

[0029] Figure 3 For Figure 2 Enlarged structure schematic diagram of A in FIG. 4;

[0030] Figure 4 Top view schematic diagram of the electromagnetic unit and the base of the electromagnetic shock wave source disclosed by the embodiments of the present application;

[0031] Figure 5 Bottom view schematic diagram of the base of the electromagnetic shock wave source disclosed by the embodiments of the present application;

[0032] FIG. 6(a) is a schematic diagram of the combination focal domain morphological change of the electromagnetic unit of the electromagnetic shock wave source disclosed by the embodiments of the present application Figure One .

[0033] FIG. 6(b) is a schematic diagram of the combination focal domain morphological change of the electromagnetic unit of the electromagnetic shock wave source disclosed by the embodiments of the present application Figure Two .

[0034] FIG. 6(c) is a schematic diagram of the combination focal domain morphological change of the electromagnetic unit of the electromagnetic shock wave source disclosed by the embodiments of the present application Figure Three .

[0035] FIG. 6(d) is a schematic diagram of the combination focal domain morphological change of the electromagnetic unit of the electromagnetic shock wave source disclosed by the embodiments of the present application Figure Four .

[0036] FIG. 7(a) is an axonometric schematic diagram of the combination focal domain morphological change of the electromagnetic unit of the electromagnetic shock wave source disclosed by the embodiments of the present application Figure One .

[0037] FIG. 7(b) is an axonometric schematic diagram of the combination focal domain morphological change of the electromagnetic unit of the electromagnetic shock wave source disclosed by the embodiments of the present application Figure Two .

[0038] In the figure: 1, base; 2, sealed chamber; 3, electromagnetic unit; 4, coil; 5, insulation film; 6, metal diaphragm; 7, isolation film; 8, water bag; 9, water inlet channel; 10, water outlet channel; 11, water inlet pipe; 12, water outlet pipe; 13, wiring channel; 14, high-voltage connector; 15, lead groove; 16, gland; 17, compression ring; 18, handle; 19, compression sheet. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0040] The present application aims to provide an electromagnetic shock wave source to solve the above-mentioned problems in the related art, increase the focusing area of the electromagnetic shock wave source, and avoid the overlarge volume of the pressure pulse device, thereby improving the adaptability of the pressure pulse device.

[0041] To make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be described in further detail below with reference to the drawings and specific embodiments.

[0042] Embodiment one

[0043] The present embodiment provides an electromagnetic shock wave source, please refer to Figure 1 To Fig. 7 (b), including base 1, sealed chamber 2 and electromagnetic unit 3, base 1 is made of insulating material; the sealed chamber 2 is filled with water, and the sealed chamber 2 is located above the base 1; the electromagnetic unit 3 is arranged between the base 1 and the sealed chamber 2, the electromagnetic unit 3 includes coil 4, insulation film 5 and metal diaphragm 6, the coil 4 is arranged on the base 1 and connected with the external high-voltage power supply, the insulation film 5 is located on the side of the coil 4 close to the sealed chamber 2, the metal diaphragm 6 is located on the side of the insulation film 5 close to the sealed chamber 2 and contacts with the outer wall of the sealed chamber 2; the number of electromagnetic units 3 is multiple groups, and the focusing axes of the electromagnetic units 3 intersect, and the intersection point is located on the side of the base 1 close to the sealed chamber 2.

[0044] In the electromagnetic shock wave source of the present invention, when the coil 4 of the electromagnetic unit 3 is energized, a pulse current is generated in the coil 4, forming a strong pulsed magnetic field. The metal diaphragm 6 senses a magnetic field in the opposite direction, which interacts with the magnetic field of the coil 4 to generate a repulsive force, pushing the metal diaphragm 6 to vibrate, thereby forcing the water molecules in the sealed chamber 2 on the other side of the metal diaphragm 6 to move, generating a pressure pulse. After focusing, the energy is concentrated to the lesion for treatment. The present invention provides multiple groups of electromagnetic units 3, and the focusing axes of the electromagnetic units 3 are at a certain angle. Even if the pressure pulses generated by the electromagnetic units 3 are not focused, the central energy is still the strongest. The present invention arranges the coils 4 of the multiple groups of electromagnetic units 3 at a certain angle. After focusing, the multiple focal points are combined in different ranges to obtain the desired larger focal area composed of multiple focal zones, which is not limited by the central intensity of a single coil 4. At the same time, the multiple electromagnetic units 3 are arranged at a certain angle. Although the output port size of the wave source is larger than that of a single electromagnetic unit 3, it is much smaller than the cumulative output port size of multiple electromagnetic units 3. While increasing the focal area of ​​the electromagnetic shock wave source, the device volume is reduced, which is conducive to improving the adaptability of the device.

[0045] In this specific embodiment, the side of the base 1 facing the sealed chamber 2 is a mounting surface, and a plurality of mounting grooves are provided on the mounting surface. The electromagnetic unit 3 is provided in the mounting groove, which improves the installation stability of the electromagnetic unit 3. The axis of the mounting groove is collinear with the focusing axis of the electromagnetic unit 3. The mounting groove corresponds one-to-one with the electromagnetic unit 3, ensuring the installation angle of the electromagnetic unit 3 and the working reliability of the electromagnetic shock wave source. In practical applications, the mounting surface can be set to a plane or an arc surface, and then the mounting groove is processed. In this specific embodiment, the coil 4 is a planar coil, wound in a disc shape. The coils 4 of multiple groups of electromagnetic units 3 are wound in the same direction and are arranged in parallel to prevent the generation of magnetic resistance. They are arranged in the mounting groove, and the bottom surface of the mounting groove is parallel to the bottom surface of the disc structure surrounded by the coil 4. In other specific embodiments that can be realized by the present invention, the coil 4 can also be selected as a spiral structure to meet different specific working conditions.

[0046] In other embodiments of the present invention, the side of the base 1 facing the sealed chamber 2 has multiple fixing surfaces, and the electromagnetic units 3 are mounted on the fixing surfaces. The normal of the fixing surfaces is collinear with the focusing axis of the electromagnetic units 3, and there is a one-to-one correspondence between the electromagnetic units 3 and the fixing surfaces. In actual applications, multiple fixing surfaces can be machined on the side of the base 1 facing the sealed chamber 2 to secure different electromagnetic units 3, depending on the installation requirements of the electromagnetic units 3.

[0047] In practical applications, the electromagnetic units 3 can be fixed by pasting, easy to disassemble and operate. In the specific embodiment, the number of electromagnetic units 3 is not less than three groups to achieve the purpose of enhancing the treatment effect, and it is convenient to adjust the number and angle of the electromagnetic units 3 according to different treatment needs. In other specific embodiments that can be achieved by the application, adjusting washers can be arranged on the mounting grooves or fixing surfaces, and the adjusting washers are wedge-shaped washers. The angle of the electromagnetic units 3, i.e. the axis of the coil 4, can be adjusted by using the adjusting washers to achieve the purpose of adjusting the output pressure pulse, thereby improving the flexible adaptability of the electromagnetic shock wave source and improving the operation convenience.

[0048] Specifically, the electromagnetic units 3 can be arranged in an array, for example, in a circular array or a rectangular array. By using different angle combinations of the electromagnetic units 3, the approximate shape of the focal domain projected can constitute different required focal domains such as a single small focal point, a large focal domain, a rectangular focal domain, and a long strip-shaped focal domain, as shown in FIGS. 6(a) to 7(b).

[0049] Please refer to FIGS. 6(a) to 6(d). In FIG. 6(a), it is a first group of electromagnetic shock wave sources. The pressure pulses generated by multiple electromagnetic units 3 focus on the lesion site to form a point-shaped focal domain. The point-shaped focal domain forms a high-energy density area, which can produce a stronger effect on the lesion site. The diameter of the point-shaped focal domain is 10.02 mm, and the corresponding wave source output port diameter is 22.44 mm. The energy is concentrated while avoiding the size of the wave source output port being too large. In FIG. 6(b), it is a second group of electromagnetic shock wave sources. The pressure pulses generated by multiple electromagnetic units 3 do not focus on the lesion site. The central energy of the multiple electromagnetic units 3 forms a square area at the lesion site, which increases the energy distribution area and is suitable for treatment conditions where the lesion site area is large. The side length of the square area is 20 mm, and the corresponding wave source output port diameter is 32.92 mm. The energy distribution area of the electromagnetic shock wave source is increased while avoiding the size of the wave source output port being too large. Similarly, the third group of electromagnetic shock wave sources in FIG. 6(c) and the fourth group of electromagnetic shock wave sources in FIG. 6(d) are similar. By combining multiple electromagnetic units 3 at a certain angle (the angle between the axes of the coils 4 of the electromagnetic units 3), a long focal domain and other large focal domains of other shapes are formed. Even if the pressure pulses generated by the electromagnetic units 3 do not focus, the central energy is still the strongest. By arranging the coils 4 of multiple electromagnetic units 3 at a certain angle and combining multiple focal points in different ranges, a larger focal area composed of multiple focal domains that is not limited by the central strength of a single coil 4 can be obtained. In practical applications, the number and distribution of the electromagnetic units 3 and the installation angle can be adjusted according to different treatment needs to enhance the treatment effect and improve the flexible adaptability of the electromagnetic shock wave source.

[0050] More specifically, the electromagnetic shock wave source of the present application further comprises a separation film 7 and a water bag 8, the separation film 7 is arranged on the top of the electromagnetic unit 3, and the edge of the separation film 7 is connected with the base 1, the water bag 8 is arranged above the base 1, and the edge of the water bag 8 is pressed on the base 1, the separation film 7, the base 1 and the water bag 8 form a sealed chamber 2, which is used to fill water medium and facilitate the maintenance and replacement of the vulnerable parts.

[0051] It should be further pointed out that the base 1 is provided with a water inlet channel 9 and a water outlet channel 10, both of which are connected with the sealed chamber 2, the water inlet channel 9 is connected with a water inlet pipe 11, which can be connected with an external water source, so that the external water source can deliver water medium into the sealed chamber 2 through the water inlet pipe 11 and the water inlet channel 9, the water outlet channel 10 is connected with a water outlet pipe 12, which can be connected with an external collection mechanism, so that the water medium in the sealed chamber 2 can be guided out through the water outlet channel 10 and the water outlet pipe 12 and collected by the external collection mechanism, thereby ensuring the normal operation of the electromagnetic shock wave source. The water inlet channel 9 and the water outlet channel 10 are arranged on both sides of the base 1, so as not to affect the installation of the electromagnetic unit 3.

[0052] Meanwhile, the base 1 is also provided with a wiring channel 13, and the base 1 is connected with a high-voltage connector 14, so that the electromagnetic unit 3 can be connected with an external high-voltage power source through the wiring channel 13 and the high-voltage connector 14, thereby ensuring the electrical connection between the coil 4 and the external high-voltage power source and ensuring the normal operation of the electromagnetic shock wave source. In the specific embodiment, the bottom of the base 1 is also provided with an annular lead slot 15, which is connected with the wiring channel 13, thereby facilitating the wiring.

[0053] Further, the edge of the water bag 8 is pressed on the base 1 by a gland 16 connected with the base 1; in actual application, the gland 16 and the base 1 can be connected in a detachable manner, for example, in a threaded connection manner, thereby facilitating the disassembly and assembly and improving the operation convenience of the electromagnetic shock wave source.

[0054] In order to ensure the close fit between the water bag 8 and the base 1 and the sealing property of the sealed chamber 2, a compression ring 17 made of elastic material is arranged between the gland 16 and the water bag 8, and the gland 16 and the compression ring 17 are both annular structures.

[0055] In addition, the base 1 is connected with a handle 18, which can be held by an operator to facilitate the operation.

[0056] In the specific embodiment, the handle 18 is a hollow structure, and a pressing piece 19 is arranged in the handle 18, which abuts against the base 1 to provide support for the base 1, thereby ensuring the structural stability of the electromagnetic shock wave source, and the pressing piece 19 has a hollow structure to avoid affecting the connection of the waterway and the high-voltage power source.

[0057] The electromagnetic shock wave source of the present application embeds multiple groups of electromagnetic units 3 on the base 1 according to the required angle, the installation angle of the electromagnetic units 3 and the diameter of the coil 4 of the electromagnetic units 3 are determined according to the required focal domain size, the coil 4 of each electromagnetic unit 3 is wound in the same direction and connected in parallel to prevent the generation of magnetic resistance.

[0058] Embodiment two

[0059] The present embodiment provides a pressure pulse device, which comprises the electromagnetic shock wave source of embodiment one.

[0060] The pressure pulse device of the present application uses the electromagnetic shock wave source of embodiment one to increase the focal domain of the electromagnetic shock wave source, so that the electromagnetic shock wave technology can obtain a focal spot of any size, adapt to various specific treatment needs, and better apply the shock wave technology to the field requiring large-area treatment and physiotherapy, such as skin ulcer, burn, liposuction beauty, etc.

[0061] The present application applies specific examples to illustrate the principles and implementation modes of the present application, and the above embodiment is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An electromagnetic shock wave source, characterized in that: include: a base made of insulating material; a sealed chamber filled with water, wherein the sealed chamber is located above the base; an electromagnetic unit disposed between the base and the sealed chamber, the electromagnetic unit comprising a coil, an insulating film, and a metal diaphragm; the coil being disposed on the base and connected to an external high-voltage power supply, the insulating film being located on a side of the coil close to the sealed chamber, and the metal diaphragm being located on a side of the insulating film close to the sealed chamber and in contact with an outer wall of the sealed chamber; the electromagnetic units being provided in multiple groups, and the focusing axes of the electromagnetic units intersecting with each other, with the intersection being located on a side of the base close to the sealed chamber; The device further comprises an isolation membrane and a water bag, wherein the isolation membrane is disposed on the top of the electromagnetic unit, and the edge of the isolation membrane is connected to the base, the water bag is located above the base, and the edge of the water bag is pressed against the base, and the isolation membrane, the base and the water bag form the sealed chamber; The base has a water inlet channel and a water outlet channel, both of which are connected to the sealed chamber, the water inlet channel is connected to a water inlet pipe, which can be connected to an external water source, and the water outlet channel is connected to a water outlet pipe, which can be connected to an external collection mechanism; The base further has a wiring channel, the base is connected to a high-voltage connector, and the electromagnetic unit can be connected to an external high-voltage power supply using the wiring channel and the high-voltage connector; The edge of the water bag is pressed against the base by a gland, and the gland is connected to the base; A pressure ring is further provided between the pressure cover and the water bag. The pressure ring is made of elastic material. Both the pressure cover and the pressure ring are annular structures.

2. The electromagnetic shock wave source according to claim 1, characterized in that: The side of the base facing the sealed chamber is a mounting surface, and a plurality of mounting grooves are provided on the mounting surface. The electromagnetic unit is provided in the mounting grooves, and the axis of the mounting grooves is collinear with the focusing axis of the electromagnetic unit. The mounting grooves correspond one-to-one to the electromagnetic units.

3. The electromagnetic shock wave source according to claim 1, characterized in that: The base has a plurality of fixing surfaces on a side facing the sealed chamber. The electromagnetic units are arranged on the fixing surfaces. The normal lines of the fixing surfaces are collinear with the focusing axes of the electromagnetic units. The electromagnetic units correspond to the fixing surfaces one by one.

4. The electromagnetic shock wave source according to claim 1, characterized in that: The electromagnetic units are arranged in an array.

5. The electromagnetic shock wave source according to any one of claims 1 to 4, characterized in that: The base is connected with a handle.

6. The electromagnetic shock wave source according to claim 5, characterized in that: The handle is a hollow structure. A pressing sheet is provided in the handle. The pressing sheet abuts against the base and has a hollow structure.

7. A pressure pulse device, characterized in that: The electromagnetic shock wave source comprises the electromagnetic shock wave source according to any one of claims 1 to 6.

Images