Electrode of shock wave balloon device, electrode manufacturing method and shock wave balloon device

Abstract

The invention discloses an electrode of a shock wave balloon device, which comprises a first electrode group and a wire for conducting the first electrode group, and the first electrode group comprises a first electrode, a second electrode and a third electrode which are sequentially arranged side by side at intervals; the wire is further electrically connected with an electrode control module so that shock waves can be formed between the first electrode and the second electrode and between the second electrode and the third electrode respectively. According to the embodiment of the invention, the first electrode, the second electrode and the third electrode which are arranged side by side at intervals are adopted to form the electrodes of the shock wave balloon device, and the shock wave gap is formed by the axial distance of the electrodes, so that the contour of the folded balloon is greatly reduced; the problem that the balloon cannot pass through lesions with large stenosis degree due to the fact that the contour of the folded balloon is too large after the balloon is folded due to radial clearance arrangement adopted by an existing shock wave balloon device is avoided, and the shock wave balloon device is ingenious in design.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and in particular to an electrode for a shockwave balloon device, a method for manufacturing the electrode, and the shockwave balloon device itself. Background Technology

[0002] Currently, shockwave balloons are commonly used for pretreatment in the treatment of arterial stenosis caused by calcified plaques. Shockwave balloons can effectively fracture calcified plaques and push them into the arterial wall, thus providing more space for subsequent stent implantation and ensuring complete stent apposition, effectively reducing the stenosis rate and improving the success rate of the procedure. Therefore, shockwave balloon treatment for recanalization of severely calcified vessels has significant clinical value. However, existing shockwave balloons use radially stacked electrodes, which greatly increases the folding profile of the balloon catheter, making it difficult to pass through lesions with severe stenosis. To enable the shockwave balloon catheter to effectively pass through the lesion site, a grinding device is often needed to grind away part of the stenotic plaque, which also increases the difficulty of the procedure and the risk of complications. Simultaneously, existing shockwave balloons design the electrodes very thin to reduce the folding profile of the balloon, which greatly reduces the electrode's corrosion resistance, resulting in poor shockwave stability and low efficiency in fracturing calcified plaques. Furthermore, shockwave balloons require the use of a pulse generator, which is large and relatively fixed in position, hindering the surgeon's movement and increasing the procedure time and risk. Summary of the Invention

[0003] The purpose of this invention is to provide an electrode for a shockwave balloon device, a method for manufacturing the electrode, and the shockwave balloon device itself, in order to solve the problem of the large folding profile of existing shockwave balloon devices.

[0004] To achieve the above objectives, the present invention provides an electrode for a shockwave balloon device, characterized in that it includes a first electrode group and a wire connecting the first electrode group, the first electrode group including a first electrode, a second electrode and a third electrode arranged side by side with a gap in between; the wire is also electrically connected to an electrode control module to generate shock waves between the first electrode and the second electrode, and between the second electrode and the third electrode.

[0005] Preferably, the wire includes a first wire and a second wire, the distal end of the first wire is electrically connected to the first electrode, the distal end of the second wire is electrically connected to the third electrode, and the proximal ends of the first wire and the proximal ends of the second wire are electrically connected to the electrode control module for conducting the first electrode group.

[0006] Preferably, the first electrode, the second electrode, and the third electrode are all annular. The first electrode, the second electrode, and the third electrode are respectively provided with a first connecting groove, a first discontinuous notch, and a second discontinuous notch corresponding to the first wire. The first connecting groove, the first discontinuous notch, and the second discontinuous notch are connected to form a first connecting channel. The first wire passes through the first connecting channel and the distal end of the first wire is embedded in the first connecting groove and electrically connected to the first connecting groove. And / or, the third electrode is further provided with a second connecting groove, and the distal end of the second wire is embedded in the second connecting groove and electrically connected to the second connecting groove.

[0007] Preferably, an insulating inner tube is provided through the middle of the first electrode, the second electrode, and the third electrode, and the first electrode, the second electrode, and the third electrode are fixed on the insulating inner tube.

[0008] Preferably, a first discharge region is provided between the first electrode and the second electrode, and the other regions between the first electrode and the second electrode, excluding the first discharge region, are filled with a first insulating adhesive portion; a second discharge region is provided between the second electrode and the third electrode, and the other regions between the second electrode and the third electrode, excluding the second discharge region, are filled with a second insulating adhesive portion, and the first insulating adhesive portion and the second insulating adhesive portion connect the first electrode, the second electrode and the third electrode into one unit.

[0009] Preferably, the first electrode, the second electrode, and the third electrode are arranged in a first direction. The electrodes of the shockwave balloon device further include a second electrode group. The first electrode group and the second electrode group are arranged sequentially in the first direction, and the second electrode group is located at the proximal end of the first electrode group. The second electrode group includes a fourth electrode, a fifth electrode, and a sixth electrode arranged sequentially and intermittently along the first direction. The wires electrically connect the first electrode group, the second electrode group, and the electrode control module to generate shock waves between the first electrode and the second electrode, between the second electrode and the third electrode, between the fourth electrode and the fifth electrode, and between the fifth electrode and the sixth electrode.

[0010] Preferably, the conductor includes a third conductor, a fourth conductor, and a fifth conductor. The distal end of the third conductor is electrically connected to the first electrode, and the distal end of the fourth conductor is electrically connected to the sixth electrode. The distal end of the fifth conductor is electrically connected to the third electrode, and the proximal end of the fifth conductor is electrically connected to the fourth electrode. The proximal ends of the third conductor and the fourth conductor are electrically connected to the electrode control module to conduct the first electrode group and the second electrode group.

[0011] Preferably, the first electrode, second electrode, third electrode, fourth electrode, fifth electrode, and sixth electrode are all annular. The first electrode, second electrode, third electrode, fourth electrode, fifth electrode, and sixth electrode are respectively provided with a third connecting groove, a third discontinuous notch, a fourth discontinuous notch, a fifth discontinuous notch, a sixth discontinuous notch, and a seventh discontinuous notch corresponding to the third wire. The third connecting groove, the third discontinuous notch, the fourth discontinuous notch, the fifth discontinuous notch, the sixth discontinuous notch, and the seventh discontinuous notch communicate to form a second connecting channel. Three wires are passed through the second connection channel, and the distal end of the third wire is embedded in the third connection groove and electrically connected to the third connection groove; and / or, the sixth electrode is further provided with a fourth connection groove, the distal end of the fourth wire is embedded in the fourth connection groove and electrically connected to the fourth connection groove; and / or, the third electrode is provided with a fifth connection groove, the fourth electrode is provided with a sixth connection groove, the distal end of the fifth wire is embedded in the fifth connection groove and electrically connected to the fifth connection groove, and the proximal end of the fifth wire is embedded in the sixth connection groove and electrically connected to the sixth connection groove.

[0012] Preferably, the fourth discontinuous notch is positioned 180 degrees apart from the fifth connecting groove.

[0013] Preferably, an insulating inner tube is provided through the middle of the first electrode, the second electrode, the third electrode, the fourth electrode, the fifth electrode, and the sixth electrode, and the first electrode, the second electrode, the third electrode, the fourth electrode, the fifth electrode, and the sixth electrode are fixed on the insulating inner tube.

[0014] Preferably, a third discharge region is provided between the first electrode and the second electrode, and the other regions between the first electrode and the second electrode, excluding the third discharge region, are filled with a third insulating adhesive portion; a fourth discharge region is provided between the second electrode and the third electrode, and the other regions between the second electrode and the third electrode, excluding the fourth discharge region, are filled with a fourth insulating adhesive portion, the third insulating adhesive portion and the fourth insulating adhesive portion connecting the first electrode, the second electrode and the third electrode into one unit; a fifth discharge region is provided between the fourth electrode and the fifth electrode, and the other regions between the fourth electrode and the fifth electrode, excluding the fifth discharge region, are filled with a fifth insulating adhesive portion; a sixth discharge region is provided between the fifth electrode and the sixth electrode, and the other regions between the fifth electrode and the sixth electrode, excluding the sixth discharge region, are filled with a sixth insulating adhesive portion, the fifth insulating adhesive portion and the sixth insulating adhesive portion connecting the fourth electrode, the fifth electrode and the sixth electrode into one unit.

[0015] The present invention also provides a method for manufacturing an electrode for a shockwave balloon device, characterized by comprising the following steps: S1, providing a metal tube and laser-cutting the metal tube to form a first electrode portion; or, providing a metal plate and laser-cutting and curling the metal plate to form a first electrode portion; S2, the first electrode portion comprising a first electrode, a second electrode, and a third electrode arranged in sequence with gaps, a first connecting rod connecting the first electrode and the second electrode, a second connecting rod connecting the second electrode and the third electrode, a first discharge region being provided between the first electrode and the second electrode, and a second discharge region being provided between the second electrode and the third electrode; S3, filling the area between the first electrode and the second electrode, excluding the first discharge region and the first connecting rod, with a first insulating connection portion; and filling the area between the second electrode and the third electrode, excluding the second discharge region and the second connecting rod, with a second insulating connection portion; S4, removing the first connecting rod and the second connecting rod; S5, filling the positions of the first connecting rod and the second connecting rod with insulating layers to form a first insulating adhesive portion and a second insulating adhesive portion between the first electrode and the second electrode, and between the second electrode and the third electrode, respectively.

[0016] The present invention also provides a shockwave balloon device, including an operating handle and electrodes of the above-mentioned shockwave balloon device, wherein the electrode control module is disposed inside the operating handle.

[0017] Preferably, the electrode control module includes a high-voltage pulse generation circuit, which includes a cascaded first boost circuit and a second boost circuit. 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 terminal of the transformer. The output terminal of the transformer is connected to the input terminal of the second boost circuit, and the input terminal of the transformer is also connected to an input voltage. The drive circuit receives a PWM control signal output by the power supply module, generates a drive signal based on the PWM control signal, and sends the drive signal to the transformer. The transformer boosts the input voltage based on the drive signal to obtain an intermediate voltage and sends the intermediate voltage to the second boost circuit. The second boost circuit boosts the intermediate voltage to obtain a target voltage.

[0018] Preferably, the driving circuit includes a first switching transistor, a second switching transistor, and a current-sensing resistor. The first terminal of the first switching transistor is connected to the power module, the second terminal is connected to the input terminal of the transformer, and the third terminal is grounded through the current-sensing resistor. The first terminal of the second switching transistor is connected to the power module, the second terminal is connected to the input terminal of the transformer, and the third terminal is grounded through the current-sensing resistor.

[0019] Preferably, the first boost circuit further includes a rectifier circuit, the input terminal of which is connected to the secondary coil of the transformer, and the output terminal of which is connected to the input terminal of the second boost circuit; the second boost circuit includes a Max generator circuit, which includes multiple parallel capacitor branches, one end of each branch being connected to the output terminal of the rectifier circuit, and the other end being grounded.

[0020] Compared with the prior art, the present invention uses a shock wave balloon device composed of a first electrode, a second electrode and a third electrode arranged side by side at intervals. The shock wave gap is set by the axial distance of the electrodes, which greatly reduces the outline of the balloon after folding. This avoids the radial gap setting used in the existing shock wave balloon devices, which causes the outline of the balloon to be too large after folding and cannot pass through lesions with a large degree of stenosis. The present invention is ingeniously designed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the first electrode group disposed on the insulating inner tube in one embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the first electrode group in one embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the unfolded structure of the first electrode group in one embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of an electrode disposed on an insulating inner tube in another embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of the first electrode group in another embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the unfolded structure of the first electrode group in another embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the second electrode group in another embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the unfolded structure of the second electrode group in another embodiment of the present invention.

[0029] Figure 9 This is a structural diagram of the shockwave balloon device according to an embodiment of the present invention.

[0030] Figure 10 This is a structural diagram of the operating handle of the shockwave balloon device according to an embodiment of the present invention.

[0031] Figure 11 for Figure 9 Enlarged view of point A in the middle.

[0032] Figure 12 This is a schematic diagram of a high-voltage pulse generating circuit in the shockwave balloon device of the present invention.

[0033] Figure 13 This is a schematic diagram of another high-voltage pulse generating circuit in the shock wave balloon device of the present invention.

[0034] Figure 14 This is a schematic diagram of another high-voltage pulse generating circuit in the shock wave balloon device of the present invention.

[0035] Figure 15 This is a schematic diagram of the structure of a Marx generator circuit in the shock wave balloon device of the present invention.

[0036] Figure 16 This is a schematic diagram of the shockwave balloon device of the present invention. Detailed Implementation

[0037] To illustrate the technical content, structural features, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0038] It should be noted that in this application, "far end" and "proximal end" are based on the operator. The far end of the guidance tube assembly is the end that is farther away from the operator, while the proximal end of the guidance tube assembly is the end that is closer to the operator.

[0039] Example 1

[0040] like Figures 1 to 3 as well as Figures 9 to 11 As shown, this embodiment of the invention provides an electrode for a shockwave balloon device, including a first electrode group 3 and a wire 5 connecting the first electrode group 3. The first electrode group 3 includes a first electrode 31, a second electrode 32, and a third electrode 33 arranged side-by-side with gaps between them. The wire 5 is also electrically connected to an electrode control module 24 to generate shock waves between the first electrode 31 and the second electrode 32, and between the second electrode 32 and the third electrode 33, respectively. Specifically, the electrode material of the first electrode group 3 is a material with high corrosion resistance. High corrosion resistance is beneficial for generating stable shock waves. The electrode material can generally be stainless steel, platinum, tungsten copper alloy, titanium, or titanium alloy. The first electrode 31, the second electrode 32, and the third electrode 33 have the same inner diameter, length, and thickness, ensuring the corrosion resistance of the electrodes and the passability of the shockwave balloon 202. The thickness can be set to 0.12 mm for example. The thicker thickness further improves the stability of the shock wave generated by the electrodes and improves the efficiency of breaking up calcified plaques.

[0041] The shockwave balloon device 100 of the present invention uses a first electrode 31, a second electrode 32 and a third electrode 33 arranged side by side at intervals. The shockwave gap is set by the axial distance of the electrodes, which greatly reduces the outline of the balloon 202 after folding. This avoids the radial gap setting used in the existing shockwave balloon device, which causes the outline of the balloon 202 after folding to be too large and unable to pass through lesions with a large degree of narrowing. The present invention is ingeniously designed.

[0042] In this embodiment of the invention, the conductor 5 includes a first conductor 501 and a second conductor 502. The distal end of the first conductor 501 is electrically connected to the first electrode 31, and the distal end of the second conductor 502 is electrically connected to the third electrode 33. The proximal ends of the first conductor 501 and the proximal ends of the second conductor 502 are electrically connected to the electrode control module 24 to conduct the first electrode group 3. Specifically, the first conductor 501 and the second conductor 502 conduct the first electrode group 3, thereby forming two shock wave gaps at the electrodes.

[0043] Furthermore, the first electrode 31, the second electrode 32, and the third electrode 33 are all annular. The first electrode 31, the second electrode 32, and the third electrode 33, corresponding to the first wire 501, respectively have a first connecting groove 3011, a first discontinuous notch 3021, and a second discontinuous notch 3031. The first connecting groove 3011, the first discontinuous notch 3021, and the second discontinuous notch 3031 are connected to form a first connecting channel 307. The first wire 501 passes through the first connecting channel 307, and the distal end of the first wire 501 is embedded in the first connecting groove 3011 and electrically connected to the first connecting groove 3011. The third electrode 33 also has a second connecting groove 3032, and the distal end of the second wire 502 is embedded in the second connecting groove 3032 and electrically connected to the second connecting groove 3032. Specifically, as shown... Figures 1 to 3 As shown, the first connecting groove 3011 is a recessed groove that extends from the outer surface of the first electrode 31 towards the axis of the first electrode 31 and extends towards the second electrode 32, penetrating the side of the first electrode 31 near the second electrode 32 so that the first wire 501 does not protrude from the first connecting groove 3011; the second connecting groove 3032 is a recessed groove that extends from the outer surface of the third electrode 33 towards the axis of the third electrode 33 and extends away from the second electrode 32, penetrating the side of the third electrode 33 away from the second electrode 32 so that the second wire 502 does not protrude from the second connecting groove 3032; therefore, the first electrode 31 is an annulus with the first connecting groove 3011, and the second... Electrode 32 is a C-shaped ring, and the third electrode 33 is a C-shaped ring with a second connecting groove 3032. The first connecting groove 3011, the first discontinuous notch 3021, and the second discontinuous notch 3031 are connected to form a first connecting channel 307. The opening of the C-shaped ring allows the first wire 501 to pass through. The first connecting groove 3011 is used to embed the first wire 501 therein, and the second connecting groove 3032 is used to embed the second wire 502 therein. This avoids the wire 5 occupying extra space and can achieve a low profile electrode. Therefore, the electrode design of this embodiment greatly reduces the outline of the folded balloon 202. In addition, the structure of the C-shaped ring reduces the difficulty of fixing the electrode to components such as the insulating inner tube 7, making installation more convenient.

[0044] Of course, in some other specific embodiments of the present invention, a first connecting groove 3011, a first discontinuity notch 3021, and a second discontinuity notch 3031 may be respectively opened on the first electrode 31, the second electrode 32, and the third electrode 33 corresponding to the first wire 501. The first connecting groove 3011, the first discontinuity notch 3021, and the second discontinuity notch 3031 are connected to form a first connecting channel 307. The first wire 501 passes through the first connecting channel 307 and the distal end of the first wire 501 is embedded in the first connecting groove 3011 and electrically connected to the first connecting groove 3011. Alternatively, a second connecting groove 3032 may be provided only on the third electrode 33, which can also reduce the folding profile of the balloon 202.

[0045] In some other specific embodiments of the present invention, the first connecting groove 3011 is a third recessed groove that is recessed from the inner surface of the first electrode 31 in a direction away from the axis of the first electrode 31, and the third recessed groove extends in the direction of the second electrode 32 and penetrates the side of the first electrode 31 near the second electrode 32 so that the first wire 501 does not protrude from the first connecting groove 3011; the second connecting groove 3032 is a fourth recessed groove that is recessed from the inner surface of the third electrode 33 in a direction away from the axis of the third electrode 33, and the fourth recessed groove extends in a direction away from the second electrode 32 and penetrates the side of the third electrode 33 away from the second electrode 32 so that the second wire 502 does not protrude from the second connecting groove 3032. That is, the first connecting groove 3011 and the second connecting groove 3032 can also be provided on the inner side of the electrode.

[0046] In this embodiment of the invention, the first conductor 501 includes a first conductive layer located in the inner layer and a first insulating layer covering the first conductive layer. The second conductor 502 includes a second conductive layer located in the inner layer and a second insulating layer covering the second conductive layer. The first conductive layer at the distal end of the first conductor 501 is exposed so that the first conductive layer is embedded in the first connecting groove 3011 and welded to the first connecting groove 3011. The second conductive layer at the distal end of the second conductor 502 is exposed so that the second conductive layer is embedded in the second connecting groove 3032 and welded to the second connecting groove 3032. Specifically, the first electrode group 3 is connected by two conductors 5 to form a current loop. The first conductor 501 and the second conductor 502 can both be copper wires with polyimide or polyurethane insulating layers, i.e., the first conductive layer and the second conductive layer are... All conductive layers are copper layers. The first and second insulating layers are polyimide or polyurethane insulating layers. The first conductive layer at the distal end of the first conductor 501 is exposed to form a first bare copper segment. The first bare copper segment can be formed by removing the insulating layer at the distal end of the first conductor 501. The length of the first bare copper segment is equal to the length of the first connecting groove 3011. The first bare copper segment is fixed in the first connecting groove 3011 and welded to the first connecting groove 3011. The second conductive layer at the distal end of the second conductor 502 is exposed to form a second bare copper segment. The second bare copper segment can be formed by removing the insulating layer at the distal end of the second conductor 502. The length of the second bare copper segment is equal to the length of the second connecting groove 3032. The second bare copper segment is fixed in the second connecting groove 3032 and welded to the second connecting groove 3032.

[0047] In this embodiment of the invention, an insulating inner tube 7 is inserted through the middle of the first electrode 31, the second electrode 32, and the third electrode 33, and the first electrode 31, the second electrode 32, and the third electrode 33 are fixed on the insulating inner tube 7. Specifically, the first electrode group 3 has a first central hole 36, and the insulating inner tube 7 is inserted through the first central hole 36 to limit and fix the first electrode group 3. The inner diameters of the first electrode 31, the second electrode 32, and the third electrode 33 are all equal to the outer diameter of the insulating inner tube 7. Without increasing the folding profile of the balloon 202, the electrode thickness, due to the axial arrangement, is 4-8 times that of the electrode thickness of existing products, which greatly increases the corrosion resistance of the electrodes and ensures the stability of the shock wave energy.

[0048] In embodiments of the present invention, such as Figure 3As shown, a first discharge region 601 is provided between the first electrode 31 and the second electrode 32, and the area between the first electrode 31 and the second electrode 32, excluding the first discharge region 601, is filled with a first insulating adhesive portion. A second discharge region 602 is provided between the second electrode 32 and the third electrode 33, and the area between the second electrode 32 and the third electrode 33, excluding the second discharge region 602, is filled with a second insulating adhesive portion. The first insulating adhesive portion and the second insulating adhesive portion connect the first electrode 31, the second electrode 32, and the third electrode 33 into a single unit. Specifically, the first insulating adhesive portion and the second insulating adhesive portion can be UV adhesive layers. The positions of the first discharge region 601 and the second discharge region 602 can be defined by the first insulating adhesive portion and the second insulating adhesive portion, resulting in more stable discharge and more concentrated energy.

[0049] Example 2

[0050] In this embodiment, as Figures 4 to 8 As shown, the shockwave balloon device includes a first electrode group 3, which includes a first electrode 31, a second electrode 32, and a third electrode 33 arranged side-by-side with gaps between them. The arrangement direction of the first electrode 31, the second electrode 32, and the third electrode 33 is a first direction. The shockwave balloon device also includes a second electrode group 4, which is arranged in the first direction with the first electrode group 3 and the second electrode group 4 arranged in the first direction with the second electrode group 4 located near the first electrode group 3. The second electrode group 4 includes a fourth electrode 41, a fifth electrode 42, and a sixth electrode 43 arranged side-by-side with gaps between them along the first direction. A wire 5 electrically connects the first electrode group 3, the second electrode group 4, and the electrode control module 24 to generate shock waves between the first electrode 31 and the second electrode 32, between the second electrode 32 and the third electrode 33, between the fourth electrode 41 and the fifth electrode 42, and between the fifth electrode 42 and the sixth electrode 43. Specifically, the third electrode 33 and the fourth electrode 41 are arranged adjacent to each other. The electrode materials of the first electrode group 3 and the second electrode group 4 are materials with high corrosion resistance. High corrosion resistance is beneficial to generating stable shock waves. The electrode materials can generally be stainless steel, platinum, tungsten copper alloy, titanium and titanium alloy. The first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42 and the sixth electrode 43 have the same inner diameter, length and thickness, which ensures the corrosion resistance of the electrodes and the passage of the shock wave balloon 202. The thickness can be set to 0.12 mm for example. The thicker thickness can further improve the stability of the shock wave generated by the electrodes and improve the efficiency of crushing calcified plaques.

[0051] The shockwave balloon device 100 of the present invention uses a first electrode group 3 and a second electrode group 4 arranged side by side at intervals. The shockwave gap is set by the axial distance of the electrodes, which greatly reduces the outline of the balloon 202 after folding. This avoids the radial gap setting used in the existing shockwave balloon device, which causes the outline of the balloon 202 after folding to be too large and unable to pass through lesions with a large degree of narrowing. The present invention is ingeniously designed.

[0052] In embodiments of the present invention, such as Figure 4 As shown, the conductor 5 includes a third conductor 51, a fourth conductor 52, and a fifth conductor 53. The distal end of the third conductor 51 is electrically connected to the first electrode 31, and the distal end of the fourth conductor 52 is electrically connected to the sixth electrode 43. The distal end of the fifth conductor 53 is electrically connected to the third electrode 33, and the proximal end of the fifth conductor 53 is electrically connected to the fourth electrode 41. The proximal ends of the third conductor 51 and the fourth conductor 52 are electrically connected to the electrode control module 24 to conduct the first electrode group 3 and the second electrode group 4. The first electrode group 3 and the second electrode group 4 are connected in series through the third conductor 51, the fourth conductor 52, and the fifth conductor 53, so that the electrodes form four shock wave gaps.

[0053] Furthermore, the first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43 are all annular. The first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43 are respectively provided with a third connecting groove 311, a third discontinuous notch 321, a fourth discontinuous notch 331, a fifth discontinuous notch 411, a sixth discontinuous notch 421, and a seventh discontinuous notch 431 on the third wire 51. The third connecting groove 311, the third discontinuous notch 321, the fourth discontinuous notch 331, the fifth discontinuous notch 411, the sixth discontinuous notch 421, and the seventh discontinuous notch 431 are connected to form... The second connecting channel, the third wire 51 passes through the second connecting channel and the distal end of the third wire 51 is embedded in the third connecting groove 311 and electrically connected to the third connecting groove 311; the sixth electrode 43 is also provided with a fourth connecting groove 432, the distal end of the fourth wire 52 is embedded in the fourth connecting groove 432 and electrically connected to the fourth connecting groove 432; the third electrode 33 is provided with a fifth connecting groove 332, the fourth electrode 41 is provided with a sixth connecting groove 412, the distal end of the fifth wire 53 is embedded in the fifth connecting groove 332 and electrically connected to the fifth connecting groove 332, and the proximal end of the fifth wire 53 is embedded in the sixth connecting groove 412 and electrically connected to the sixth connecting groove 412. Specifically, as shown... Figures 4 to 8As shown, the third connecting groove 311 is a fifth recessed groove that is recessed from the outer surface of the first electrode 31 towards the axis of the first electrode 31, and the fifth recessed groove extends towards the second electrode 32 and penetrates the side of the first electrode 31 near the second electrode 32 so that the third wire 51 does not protrude from the third connecting groove 311; the fourth connecting groove 432 is a sixth recessed groove that is recessed from the outer surface of the sixth electrode 43 towards the axis of the sixth electrode 43, and the sixth recessed groove extends away from the fifth electrode 42 and penetrates the side of the fifth electrode 42 away from the fifth electrode 42 so that the fourth wire 52 does not protrude from the fourth connecting groove 311. The fifth connecting groove 332 is a seventh recessed groove that is recessed from the outer surface of the third electrode 33 towards the axis of the third electrode 33. The seventh recessed groove extends towards the fourth electrode 41 and penetrates the side of the third electrode 33 near the fourth electrode 41. The sixth connecting groove 412 is an eighth recessed groove that is recessed from the outer surface of the fourth electrode 41 towards the axis of the fourth electrode 41. The eighth recessed groove extends towards the third electrode 33 and penetrates the side of the fourth electrode 41 near the third electrode 33, so that the fifth wire 53 does not protrude from the fifth connecting groove 332 and the sixth connecting groove 412. Therefore, the first electrode 31 is a ring with the third connecting groove 311, the second electrode 32 is a C-shaped ring, and the third electrode 33 is a C-shaped ring with the fifth connecting groove 332; the fourth electrode 41 is a C-shaped ring with the sixth connecting groove 412, the fifth electrode 42 is a C-shaped ring, and the sixth electrode 43 is a C-shaped ring with the fourth connecting groove 432. The third connecting groove 311, the third discontinuous notch 321, and the fourth discontinuous notch 331 are connected to form the first channel 37, and the fifth discontinuous notch 411, the sixth discontinuous notch 421, and the seventh discontinuous notch 431 form the second channel 47. The opening of the C-shaped ring allows the third wire 51 to pass through. The third connecting groove 311, the fourth connecting groove 432, the fifth connecting groove 332, and the sixth connecting groove 412 can be used to embed the wire 5 therein, avoiding the wire 5 occupying extra space and realizing a low profile electrode. Therefore, the electrode design of this embodiment greatly reduces the outline of the folded balloon 202. In addition, the structure of the C-shaped ring reduces the difficulty of fixing the electrode to the insulating inner tube 7 and other components, making installation more convenient.

[0054] Of course, in some other specific embodiments of the present invention, the third connecting groove 311, the third discontinuity notch 321, the fourth discontinuity notch 331, the fifth discontinuity notch 411, the sixth discontinuity notch 421, and the seventh discontinuity notch 431 may be respectively provided on the first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth discontinuity notch 411, the sixth discontinuity notch 421, and the seventh discontinuity notch 431. The third connecting groove 311, the third discontinuity notch 321, the fourth discontinuity notch 331, the fifth discontinuity notch 411, the sixth discontinuity notch 421, and the seventh discontinuity notch 431 are connected to form a second connecting channel. The third wire 51 passes through the second connecting channel and the distal end of the third wire 51 is embedded in the third connecting groove 311 and electrically connected to the third connecting groove 311. Alternatively, the fourth connecting groove 432 may be provided only on the sixth electrode 43, or the distal end of the fifth wire 53 may be embedded in the fifth connecting groove 332. This can also reduce the folding profile of the balloon 202.

[0055] In some other specific embodiments of the present invention, the third connecting groove 311 is a ninth recessed groove that is recessed from the inner surface of the first electrode 31 in a direction away from the axis of the first electrode 31, and the ninth recessed groove extends toward the second electrode 32 and penetrates the side of the first electrode 31 near the second electrode 32 so that the third wire 51 does not protrude from the third connecting groove 311; the fourth connecting groove 432 is a tenth recessed groove that is recessed from the inner surface of the sixth electrode 43 in a direction away from the axis of the sixth electrode 43, and the tenth recessed groove extends toward the fifth electrode 42 in a direction away from the fifth electrode 42 and penetrates the side of the fifth electrode 42 away from the fifth electrode 42 so that the fourth wire 51 does not protrude from the third connecting groove 311; The fifth connecting groove 332 is not protruding from the fourth connecting groove 432; the fifth connecting groove 332 is an eleventh recessed groove that is recessed from the inner surface of the third electrode 33 in a direction away from the axis of the third electrode 33, and the eleventh recessed groove extends toward the fourth electrode 41 and penetrates the side of the third electrode 33 near the fourth electrode 41; the sixth connecting groove 412 is a twelfth recessed groove that is recessed from the inner surface of the fourth electrode 41 in a direction away from the axis of the fourth electrode 41, and the twelfth recessed groove extends toward the third electrode 33 and penetrates the side of the fourth electrode 41 near the third electrode 33, so that the fifth wire 53 does not protrude from the fifth connecting groove 332 and the sixth connecting groove 412. That is, the third connecting groove 311, the fourth connecting groove 432, the fifth connecting groove 332 and the sixth connecting groove 412 can also be provided on the inner side of the electrode.

[0056] In this embodiment of the invention, the third conductor 51 includes a third conductive layer located in the inner layer and a third insulating layer covering the third conductive layer; the fourth conductor 52 includes a fourth conductive layer located in the inner layer and a fourth insulating layer covering the fourth conductive layer; and the fifth conductor 53 includes a fifth conductive layer located in the inner layer and a fifth insulating layer covering the fifth conductive layer. The third conductive layer at the distal end of the third conductor 51 is exposed so that the third conductive layer is embedded in the third connecting groove 311 and welded to the third connecting groove 311. The fourth conductive layer at the distal end of the fourth conductor 52 is exposed so that the fourth conductive layer is embedded in the fourth connecting groove 432 and welded to the fourth connecting groove 432. The fifth conductive layer at the distal end of the fifth conductor 53 is exposed so that the distal fifth conductive layer is embedded in the fifth connecting groove 332 and welded to the fifth connecting groove 332. The fifth conductive layer at the proximal end of the fifth conductor 53 is exposed so that the proximal fifth conductive layer is embedded in the sixth connecting groove 412 and welded to the sixth connecting groove 412. Specifically, the first electrode group 3 and the second electrode group 4 are connected by three wires 5 to form a current loop. The third wire 51, the fourth wire 52, and the fifth wire 53 can all be copper wires with polyimide or polyurethane insulation layers. That is, the third conductive layer, the fourth conductive layer, and the fifth conductive layer are all copper layers, and the third insulating layer, the fourth insulating layer, and the fifth insulating layer are all polyimide or polyurethane insulation layers. The third conductive layer at the distal end of the third wire 51 is exposed to form a third bare copper segment. The third bare copper segment can be formed by removing the insulation layer at the distal end of the third wire 51. The length of the third bare copper segment is equal to the length of the third connecting groove 311. The third bare copper segment is fixed in the third connecting groove 311 and welded to the third connecting groove 311. The fourth conductive layer at the distal end of the fourth wire 52 is exposed to form a fourth bare copper segment. The fourth bare copper segment can be formed by removing the insulation layer at the distal end of the fourth wire 52. The insulation layer at the end is removed to form the fourth bare copper segment. The length of the fourth bare copper segment is equal to the length of the fourth connecting groove 432. The fourth bare copper segment is fixed in the fourth connecting groove 432 and welded to the fourth connecting groove 432. The fifth conductive layer at the distal end of the fifth conductor 53 is exposed to form the fifth bare copper segment, and the fifth conductive layer at the proximal end of the fifth conductor 53 is exposed to form the sixth bare copper segment. The fifth bare copper segment can be formed by removing the insulation layer at the distal end of the fifth conductor 53. The sixth bare copper segment can be formed by removing the insulation layer at the proximal end of the fifth conductor 53. The length of the fifth bare copper segment is equal to the length of the fifth connecting groove 332. The fifth bare copper segment is fixed in the fifth connecting groove 332 and welded to the fifth connecting groove 332. The length of the sixth bare copper segment is equal to the length of the sixth connecting groove 412. The sixth bare copper segment is fixed in the sixth connecting groove 412 and welded to the sixth connecting groove 412.

[0057] In this embodiment of the invention, the fourth discontinuous notch 331 and the fifth connecting groove 332 are set 180 degrees apart, resulting in a more reasonable and stable structure.

[0058] In this embodiment of the invention, an insulating inner tube 7 passes through the middle of the first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43, and the first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43 are fixed to the insulating inner tube 7. Specifically, as shown... Figures 4 to 8 As shown, the first electrode group 3 has a first central hole 36, and the second electrode group 4 has a second central hole 46. The insulating inner tube 7 passes through the first central hole 36 and the second central hole 46 to limit and fix the first electrode group 3 and the second electrode group 4. The inner diameters of the first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42 and the sixth electrode 43 are all equal to the outer diameter of the insulating inner tube 7. Without increasing the folding profile of the balloon 202, the electrode thickness is 4-8 times that of the electrode thickness of existing products due to the axial arrangement, which greatly increases the corrosion resistance of the electrodes and ensures the stability of the shock wave energy.

[0059] In this embodiment of the invention, a third discharge region 61 is provided between the first electrode 31 and the second electrode 32, and the other regions between the first electrode 31 and the second electrode 32, excluding the third discharge region 61, are filled with a third insulating adhesive portion; a fourth discharge region 62 is provided between the second electrode 32 and the third electrode 33, and the other regions between the second electrode 32 and the third electrode 33, excluding the fourth discharge region 62, are filled with a fourth insulating adhesive portion, and the third insulating adhesive portion and the fourth insulating adhesive portion connect the first electrode 31, the second electrode 32, and the third electrode 33 into one unit; a fifth discharge region 63 is provided between the fourth electrode 41 and the fifth electrode 42, and the other regions between the fourth electrode 41 and the fifth electrode 42, excluding the fifth discharge region 63, are filled with a fifth insulating adhesive portion; a sixth discharge region 64 is provided between the fifth electrode 42 and the sixth electrode 43, and the other regions between the fifth electrode 42 and the sixth electrode 43, excluding the sixth discharge region 64, are filled with a sixth insulating adhesive portion, and the fifth insulating adhesive portion and the sixth insulating adhesive portion connect the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43 into one unit. The third, fourth, fifth, and sixth insulating adhesive portions can be UV adhesive layers. By setting the third, fourth, fifth, and sixth insulating adhesive portions, the positions of the third discharge region 61, the fourth discharge region 62, the fifth discharge region 63, and the sixth discharge region 64 can be defined, resulting in more stable discharge and more concentrated energy.

[0060] Example 3

[0061] like Figures 1 to 3 As shown, this embodiment of the invention also provides a method for manufacturing electrodes for a shockwave balloon device, used to manufacture the electrodes formed by the first electrode group 3 in Embodiment 1, comprising the following steps:

[0062] S1. A metal tube is provided, and the metal tube is laser-cut to form the first electrode portion 3a. Specifically, the metal tube is made of a material with high corrosion resistance, because high corrosion resistance is beneficial for generating stable shock waves. The material of the metal tube can generally be stainless steel, platinum, tungsten copper alloy, titanium, or titanium alloy. In some other embodiments, a metal plate can also be provided, and the metal plate is laser-cut and rolled and joined to form the first electrode portion 3a.

[0063] S2, the first electrode section 3a includes a first electrode 31, a second electrode 32, and a third electrode 33 arranged sequentially with gaps between them. A first connecting rod 34 connects the first electrode 31 and the second electrode 32, and a second connecting rod 35 connects the second electrode 32 and the third electrode 33. A first discharge region 601 is provided between the first electrode 31 and the second electrode 32, and a second discharge region 602 is provided between the second electrode 32 and the third electrode 33; specifically, as shown... Figures 1 to 3 As shown, when the laser cuts the metal pipe, a first connecting rod 34 is retained between the first electrode 31 and the second electrode 32 to ensure the accuracy of the distance between them. A second connecting rod 35 is retained between the second electrode 32 and the third electrode 33 to ensure the accuracy of the distance between them. There can be three first connecting rods 34 and three second connecting rods 35, all evenly arranged circumferentially along the first electrode group 3. Alternatively, in some other embodiments, only the first electrode 31, the second electrode 32, and the third electrode 33 can be retained after laser cutting. The distance can be controlled by inserting first connecting rods 34 and second connecting rods 35 in the form of inserts between the first electrode 31 and the second electrode 32, and between the second electrode 32 and the third electrode 33, thus ensuring positional accuracy.

[0064] S3. A first insulating connection portion is filled in the area between the first electrode 31 and the second electrode 32, excluding the first discharge region 601 and the first connecting rod 34; and a second insulating connection portion is filled in the area between the second electrode 32 and the third electrode 33, excluding the second discharge region 602 and the second connecting rod 35; specifically, as follows: Figures 1 to 3As shown, the area between the first electrode 31 and the second electrode 32, excluding the first discharge area 601 and the first connecting rod 34, corresponds to the first area 308 after the first electrode part 3a is unfolded. The area between the second electrode 32 and the third electrode 33, excluding the second discharge area 602 and the second connecting rod 35, corresponds to the second area 309 after the first electrode part 3a is unfolded. The first insulating connection part and the second insulating connection part are formed by filling the area between the first electrode 31 and the second electrode 32 and the area between the second electrode 32 and the third electrode 33 with UV glue and then curing it.

[0065] S4. Remove the first connecting rod 34 and the second connecting rod 35. Specifically, the first connecting rod 34 and the second connecting rod 35 can be removed again by laser cutting. Since the first insulating connection and the second insulating connection limit the position of each electrode in the first electrode group 3, the position accuracy of each electrode in the first electrode group 3 can be guaranteed after removing the first connecting rod 34 and the second connecting rod 35.

[0066] S5. Insulating layers are filled at the positions of the first connecting rod 34 and the second connecting rod 35 to form a first insulating adhesive portion and a second insulating adhesive portion between the first electrode 31 and the second electrode 32, and between the second electrode 32 and the third electrode 33, respectively. Specifically, UV adhesive or the like is filled at the positions of the first connecting rod 34 and the second connecting rod 35 and cured to form the first insulating adhesive portion and the second insulating adhesive portion, thereby forming the electrodes of the shockwave balloon device 100.

[0067] Furthermore, the first electrode 31, the second electrode 32, and the third electrode 33 form a first electrode group 3. A wire 5 is electrically connected to the first electrode group 3, and the wire 5 is also electrically connected to the electrode control module 24 to generate shock waves between the first electrode 31 and the second electrode 32, and between the second electrode 32 and the third electrode 33, respectively. The specific connection structure of the wire 5 is as described in Embodiment 1 and will not be repeated here.

[0068] Example 4

[0069] like Figures 4 to 8 As shown, this embodiment of the invention also provides a method for manufacturing electrodes for a shockwave balloon device 100, used to manufacture the electrodes formed by the first electrode group 3 and the second electrode group 4 in Embodiment 2, comprising the following steps:

[0070] S10. A metal pipe is provided, and the metal pipe is laser-cut to form a first electrode portion 3a and a second electrode portion 4a. Specifically, the metal pipe is made of a material with high corrosion resistance, because high corrosion resistance is beneficial for generating stable shock waves. The material of the metal pipe can generally be stainless steel, platinum, tungsten copper alloy, titanium, or titanium alloy. In some other embodiments, a metal plate can also be provided, and the metal plate is laser-cut and rolled and joined to form the first electrode portion 3a and the second electrode portion 4a.

[0071] S20. The first electrode section 3a includes a first electrode 31, a second electrode 32, and a third electrode 33 arranged in sequence with gaps. A first connecting rod 34 connects the first electrode 31 and the second electrode 32, and a second connecting rod 35 connects the second electrode 32 and the third electrode 33. The second electrode section 4a includes a fourth electrode 41, a fifth electrode 42, and a sixth electrode 43 arranged in sequence with gaps. A third connecting rod 44 connects the fourth electrode 41 and the fifth electrode 42, and a fourth connecting rod 45 connects the fifth electrode 42 and the sixth electrode 43. A third discharge region 61 is provided between the first electrode 31 and the second electrode 32, a fourth discharge region 62 is provided between the second electrode 32 and the third electrode 33, a fifth discharge region 63 is provided between the fourth electrode 41 and the fifth electrode 42, and a sixth discharge region 64 is provided between the fifth electrode 42 and the sixth electrode 43. Specifically, as shown... Figures 5 to 8As shown, when the laser cuts the metal pipe, a first connecting rod 34 is retained between the first electrode 31 and the second electrode 32 to ensure the accuracy of the distance between the first electrode 31 and the second electrode 32; a second connecting rod 35 is retained between the second electrode 32 and the third electrode 33 to ensure the accuracy of the distance between the second electrode 32 and the third electrode 33; a third connecting rod 44 is retained between the fourth electrode 41 and the fifth electrode 42 to ensure the accuracy of the distance between the fourth electrode 41 and the fifth electrode 42; and a fourth connecting rod 45 is retained between the fifth electrode 42 and the sixth electrode 43 to ensure the accuracy of the distance between the fifth electrode 42 and the sixth electrode 43, thereby improving the stability of the shock wave. There can be three of each of the following connecting rods: the first connecting rod 34, the second connecting rod 35, the third connecting rod 44, and the fourth connecting rod 45. The three first connecting rods 34 and the three second connecting rods 35 are evenly arranged around the circumference of the first electrode group 3, and the three third connecting rods 44 and the three fourth connecting rods 45 are evenly arranged around the circumference of the second electrode group 4. Of course, in some other embodiments, only the first electrode 31, the second electrode 32, the third electrode 33, the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43 can be retained after laser cutting. The distance can be controlled by inserting the first connecting rods 34, the second connecting rods 35, the third connecting rods 44, and the fourth connecting rods 45 in the form of inserts between the first electrode 31 and the second electrode 32, between the second electrode 32 and the third electrode 33, between the fourth electrode 41 and the fifth electrode 42, and between the fifth electrode 42 and the sixth electrode 43, which can also ensure the accuracy of the position.

[0072] S30. A second insulating connection portion is filled in the area between the first electrode 31 and the second electrode 32, excluding the third discharge region 61 and the first connecting rod 34; and a second insulating connection portion is filled in the area between the second electrode 32 and the third electrode 33, excluding the fourth discharge region 62 and the second connecting rod 35; and a third insulating connection portion is filled in the area between the fourth electrode 41 and the fifth electrode 42, excluding the fifth discharge region 63 and the third connecting rod 44; and a fourth insulating connection portion is filled in the area between the fifth electrode 42 and the sixth electrode 43, excluding the sixth discharge region 64 and the fourth connecting rod 45; specifically, as shown... Figure 6 as well as Figure 8As shown, the regions between the first electrode 31 and the second electrode 32, excluding the third discharge region 61 and the first connecting rod 34, correspond to the third region 38 after the first electrode part 3a is unfolded. The regions between the second electrode 32 and the third electrode 33, excluding the fourth discharge region 62 and the second connecting rod 35, correspond to the fourth region 39 after the first electrode part 3a is unfolded. The regions between the fourth electrode 41 and the fifth electrode 42, excluding the fifth discharge region 63 and the third connecting rod 44, correspond to the fifth region 48 after the second electrode part 4a is unfolded. The regions between the fifth electrode 42 and the sixth electrode 43, excluding the sixth discharge region 64 and the fourth connecting rod 45, correspond to the sixth region 49 after the second electrode part 4a is unfolded. By filling the regions between the first electrode 31 and the second electrode 32, the second electrode 32 and the third electrode 33, the fourth electrode 41 and the fifth electrode 42, and the fifth electrode 42 and the sixth electrode 43 with UV glue and then curing them, a first insulating connection, a second insulating connection, a third insulating connection, and a fourth insulating connection are formed.

[0073] S40. Remove the first connecting rod 34, the second connecting rod 35, the third connecting rod 44, and the fourth connecting rod 45. Specifically, the first connecting rod 34, the second connecting rod 35, the third connecting rod 44, and the fourth connecting rod 45 can be removed again by laser cutting. Since the first insulating connection and the second insulating connection limit the position of each electrode in the first electrode group 3, and the third insulating connection and the fourth insulating connection limit the position of each electrode in the second electrode group 4, removing the first connecting rod 34, the second connecting rod 35, the third connecting rod 44, and the fourth connecting rod 45 can also ensure the accuracy of the position of each electrode in the second electrode group 4 and the first electrode group 3.

[0074] S5. Insulating layers are filled at the positions of the first connecting rod 34, the second connecting rod 35, the third connecting rod 44, and the fourth connecting rod 45 to form a third insulating adhesive portion, a fourth insulating adhesive portion, a fifth insulating adhesive portion, and a sixth insulating adhesive portion, respectively, between the first electrode 31 and the second electrode 32, between the second electrode 32 and the third electrode 33, between the fourth electrode 41 and the fifth electrode 42, and between the fifth electrode 42 and the sixth electrode 43. Specifically, UV adhesive or similar materials are filled at the positions of the first connecting rod 34, the second connecting rod 35, the third connecting rod 44, and the fourth connecting rod 45 and cured to form the third insulating adhesive portion, the fourth insulating adhesive portion, the fifth insulating adhesive portion, and the sixth insulating adhesive portion, thereby forming the electrodes of the shockwave balloon device 100.

[0075] Furthermore, the first electrode 31, the second electrode 32, and the third electrode 33 form a first electrode group 3, and the fourth electrode 41, the fifth electrode 42, and the sixth electrode 43 form a second electrode group 4. Wires 5 are electrically connected to the first electrode group 3 and the second electrode group 4, and the wires 5 are also electrically connected to the electrode control module 24 to generate shock waves between the first electrode 31 and the second electrode 32, between the second electrode 32 and the third electrode 33, between the fourth electrode 41 and the fifth electrode 42, and between the fifth electrode 42 and the sixth electrode 43, respectively. The specific connection structure of the wires 5 is as described in Embodiment 2 and will not be repeated here.

[0076] Example 5

[0077] like Figures 1 to 16 As shown, this embodiment of the invention also provides a shockwave balloon device 100, including an operating handle 2 and electrodes of the shockwave balloon device 100, with an electrode control module 24 disposed inside the operating handle 2. Specifically, when the electrodes only include the first electrode group 3, the proximal ends of the first wire 501 and the second wire 502 are connected to the operating handle 2. When the electrodes include the first electrode group 3 and the second electrode group 4, the proximal ends of the third wire 51 and the fourth wire 52 are connected to the operating handle 2. The operating handle 2 is specifically a pulse generating handle, which can provide high-voltage, high-current energy to generate shock waves, thereby generating shock waves simultaneously during shock wave gaps.

[0078] The electrode control module 24 outputs an electrical signal with the following parameters: pulse voltage of 1kV to 10kV, pulse voltage width of 200ns to 20μs; pulse current of 50A to 400A, pulse current width of 10ns to 2μs. In one embodiment, the sound pressure intensity of the shock wave generated by the electrode is 2MPa to 20MPa, and the discharge frequency is 0.1Hz to 10Hz.

[0079] Furthermore, the electrode control module 24 includes a high-voltage pulse generation circuit. Figure 12 A schematic diagram of a high-voltage pulse generating circuit provided by the present invention is shown below. Figure 12 As shown, the high-voltage pulse generating circuit 1 includes a first boost circuit 10 and a second boost circuit 11 arranged in cascade. Here, the first boost circuit 10 is used to complete the first-stage boost process, and the second boost circuit 11 is used to complete the second-stage boost process.

[0080] In practical applications, the voltage can be boosted to 500-1500V (e.g., 1000V) by the first boost circuit 10, and further boosted to 1000-10000V (e.g., 3000V) by the second boost circuit 11.

[0081] Below Figure 12 Based on, combined Figure 13 The above-described pressure boosting process is illustrated by example.

[0082] Figure 13 A schematic diagram of another high-voltage pulse generating circuit provided by the present invention is shown below. Figure 13 As shown, the first boost circuit 10 includes a power module 101, a drive circuit 102 and a transformer 103. One end of the drive circuit 102 is connected to the power module 101 and the other end is connected to the input terminal of the transformer 103. The output terminal of the transformer 103 is connected to the input terminal of the second boost circuit 11.

[0083] The drive circuit 102 is used to receive the PWM control signal output by the power module 101, generate a drive signal according to the PWM control signal, and send the drive signal to the transformer 103.

[0084] Transformer 103 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 11.

[0085] The second boost circuit 11 is used to boost the intermediate voltage to obtain the target voltage.

[0086] In this embodiment of the invention, the input terminal of the transformer 103 is also connected to an input voltage; here, the input voltage may be the voltage provided by the energy storage unit connected to the power module 101.

[0087] For example, the power module 101 may include a power management chip and its peripheral circuits, wherein the power management chip is capable of generating a PWM control signal with a certain frequency and duty cycle and outputting it to the drive circuit 102; here, the model of the power management chip is not limited.

[0088] In some embodiments, see Figure 14 The driving circuit 102 may include a first switching transistor Q11, a second switching transistor Q12, and a current sensing resistor R53. The first terminal of the first switching transistor Q11 is connected to the power module 101, the second terminal is connected to the input terminal of the transformer 103, and the third terminal is grounded through the current sensing resistor R53. The first terminal of the second switching transistor Q12 is connected to the power module 101, the second terminal is connected to the input terminal of the transformer 103, and the third terminal is grounded through the current sensing resistor R53.

[0089] For example, the first switch Q11 and the second switch Q12 can be metal-oxide-semiconductor field-effect transistors (MOSFETs), or simply MOS transistors.

[0090] In one embodiment, the first switch Q11 and the second switch Q12 can be N-type MOS transistors. In this case, the first terminal of the first switch Q11 and the second switch Q12 is the gate, the second terminal is the drain, and the third terminal is the source.

[0091] For example, see Figure 14 The first terminal of the first switching transistor Q11 is electrically connected to the power module 101 through parallel voltage divider resistors R51 and R54; the first terminal of the second switching transistor Q12 is electrically connected to the power module 101 through parallel voltage divider resistors R52 and R55.

[0092] In this embodiment of the invention, the power module 101 is connected to the first end of the first switch Q11 and the second switch Q12, and is used to control the working state of the first switch Q11 and the second switch Q12.

[0093] For example, the power module 101 outputs a PWM control signal to the first switch Q11 and the second switch Q12. The first switch Q11 and the second switch Q12 are in a closed state when the PWM control signal is high, and the first switch Q11 and the second switch Q12 are in a closed state when the PWM control signal is low.

[0094] In some embodiments, see Figure 14 The drive circuit 102 also includes a feedback circuit, which includes a comparator U1. The positive input terminal of the comparator U1 is connected to the input terminal of the current sensing resistor R53 (corresponding to I_T in 10), the negative input terminal is connected to the reference voltage VREF, and the output terminal is connected to the power supply module 101.

[0095] For example, the reference voltage VREF is the reference voltage provided by the power management chip in the power module 101; the negative input terminal of comparator U1 is connected to the reference voltage VREF, that is, the voltage at the negative input terminal of comparator U1 is the reference voltage VREF.

[0096] For example, by Figure 14 It can be seen that when the first switch Q11 and the second switch Q12 are in the closed state, the source current of the first switch Q11 and the second switch Q12 flows through the current sensing resistor R53, generating a voltage across the current sensing resistor R53. This voltage is the positive input voltage of comparator U1. After obtaining the positive input voltage, comparator U1 compares the positive input voltage with the reference voltage VREF, and controls the level of the voltage signal output to power module 101 according to the comparison result. The power management chip in power module 101 can control whether to cut off the output of the PWM control signal according to the level of the voltage signal.

[0097] Understandably, when the current flowing through the current sensing resistor R53 increases abnormally, the voltage generated across the current sensing resistor R53 will also increase accordingly. That is, the voltage at the positive input terminal of comparator U1 will increase accordingly. At this time, the voltage at the positive input terminal of comparator U1 is greater than the reference voltage VREF. The voltage signal output by comparator U1 to power module 101 will flip from low level to high level. When the power management chip detects that the voltage signal has flipped 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 switch Q11 and the second switch Q12 will not receive the PWM control signal output by power module 101.

[0098] As can be seen, in this embodiment of the invention, by setting a current sensing resistor R53 and a feedback circuit in the first boost circuit, it is possible to ensure rapid circuit switching when an abnormal situation occurs in the first boost circuit 10, thereby ensuring the safety of the boost process.

[0099] In this embodiment of the invention, the power module 101, the first switch Q11, the second switch Q12, and the transformer 103 constitute a push-pull boost circuit.

[0100] In some embodiments, see Figure 14 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-name terminal of the first coil T1 relative to the secondary coil is connected to the second terminal of the first switching transistor Q11, and the opposite-name terminal of the first coil T1 relative to the secondary coil is connected to the input voltage VCC. The opposite-name terminal of the second coil relative to the secondary coil is connected to the second terminal of the second switching transistor, and the same-name terminal of the second coil relative to the secondary coil is connected to the input voltage VCC.

[0101] In this embodiment of the invention, when the first switch Q11 and the second switch Q12 are in the closed state, a drive signal is generated according to the PWM control signal and sent to the primary coil of the transformer 103. At this time, the primary coil of the transformer 103 will generate a voltage, which will cause the secondary coil of the transformer 103 to generate a voltage. Therefore, by controlling the frequency and duty cycle of the PWM control signal, the input voltage VCC can be boosted by different amplitudes.

[0102] In some embodiments, see Figure 14 The first boost circuit may also include a rectifier circuit 105, the input terminal of which is connected to the secondary coil and the output terminal of which is connected to the input terminal of the second boost circuit 11.

[0103] For example, the rectifier circuit 105 is disposed between the secondary coil of the transformer 103 and the second boost circuit 11, and may include multiple rectifier tubes; the rectifier circuit 105 is used to rectify the AC power after the transformer 103 has boosted the voltage into DC power to complete the first stage boost process; wherein, the output voltage of the rectifier circuit 105 is the intermediate voltage.

[0104] In some embodiments, see Figures 12 to 15 The second boost circuit 11 includes a Max generator circuit 104, which includes multiple parallel capacitor branches. One end of each circuit branch is connected to the output terminal of the rectifier circuit 105 (corresponding to...). Figure 14 Connect the HV terminal to the ground.

[0105] For example, the Marx generator circuit 104 may also include multiple switches connected in parallel with multiple capacitor branches, see [link to relevant documentation]. Figure 15 In the case where the Marx generator circuit 104 includes three parallel capacitor branches, the Marx generator circuit also includes switches S1, S2 and S3.

[0106] Furthermore, when switches S1, S2, and S3 are in the open state, the intermediate voltage after being boosted and rectified by the first boost circuit 10 charges capacitors C86, C87, and C88 in the Marx generator circuit 104, respectively, and charges them to the voltage value output by the rectifier circuit 105 in the first boost circuit 10, i.e., the intermediate voltage. When the Marx generator circuit 104 is working, switches S1, S2, and S3 are in the closed state. At this time, capacitors C86, C87, and C88 discharge in series, and the intermediate voltage is superimposed to three times and output, thereby completing the second-stage boost process.

[0107] For example, with an intermediate voltage of 1000V, after Figure 15 The Marx generator circuit 104 shown performs a second-stage boost on the intermediate voltage to obtain a target voltage of 3000V.

[0108] It should be noted that the Marx generator circuit 104 can use capacitors with smaller capacitance values ​​to ensure that the second-stage boost process can be completed while preventing the released energy from being too high, thus ensuring the stability and reliability of the boost process.

[0109] This invention provides a high-voltage pulse generating circuit, comprising a cascaded first boost circuit and a second boost circuit. 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 terminal of the transformer. The output terminal of the transformer is connected to the input terminal of the second boost circuit, and the input terminal of the transformer is also connected to an input voltage. The drive circuit receives a PWM control signal output from the power supply module, generates a drive signal based on the PWM control signal, and sends the drive signal to the transformer. The transformer boosts the input voltage based on the drive signal to obtain an intermediate voltage and sends the intermediate voltage to the second boost circuit. The second boost circuit boosts the intermediate voltage to obtain a target voltage.

[0110] As can be seen, the high-voltage pulse generation circuit achieves the voltage boosting of the input voltage through a two-stage boosting process. First, the input voltage is boosted to an intermediate voltage through the first boosting circuit, and then the intermediate voltage is further boosted to the target voltage through the second boosting circuit. Compared with directly using a high-voltage transformer 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 also improve the stability of the boosting process, effectively improving the reliability and safety of the circuit.

[0111] In embodiments of the present invention, such as Figures 9 to 11 As shown, the operating handle 2 includes a handle housing 21, and an electrode control module 24 is disposed within the handle housing 21. The electrode control module 24 is also electrically connected to a power storage unit, which is disposed on the outer or inner side of the handle housing 21. Specifically, the handle housing 21 is in the shape of a general surgical handle, allowing for handheld operation and providing a comfortable grip. The operating handle 2 also includes a high-voltage, high-current circuit board, a battery compartment 27, a power switch 23, and a treatment switch 26. The power storage unit provides the input voltage VCC to the high-voltage pulse generation circuit 1. The power storage unit can be disposed inside or outside the operating handle 2, and can be designed as an external or internal unit. Figure 10 As shown, the energy storage unit is built-in and located in the battery compartment 27 at the rear of the operating handle 2. When the energy storage unit is externally designed, it can be connected to the operating handle 2 via a cable for quick replacement or charging when the power is depleted. Here, the type of energy storage unit is not limited. For example, the energy storage unit can be a rechargeable battery, a dry cell battery, or a storage battery.

[0112] For example, the energy storage unit is set as an integrated module. There can be one energy storage unit, but in order to increase the operating time of the shock wave balloon device 100, there can be multiple energy storage units. Multiple energy storage units are stacked, that is, multiple energy storage units can be stacked according to actual usage needs to provide input voltage VCC.

[0113] For example, such as Figure 10 As shown, the handle housing 21 is equipped with a control and prompt information module, which includes at least one of a display screen 25, a ring indicator light 28, and a voice prompt unit, for providing information prompts. Treatment is performed by judging and controlling the information provided on the handle through the display screen 25, the ring indicator light 28, or sound, etc. For example, the ring indicator light 28 can respond to circuit abnormalities by displaying different colors and flashing frequencies, ensuring safety during the procedure. The display screen 25 can display standby information and treatment information, facilitating the doctor's observation and recording of the treatment progress. Figure 10 As shown, the ring indicator light 28, display screen 25, power switch 23 and treatment switch 26 are located at the front of the operating handle 2. Here, the content of the indication information is not specifically limited. For example, the indication information may be the remaining number of uses.

[0114] It should be noted that the relevant circuit structure diagrams provided in the embodiments of the present invention are not limited to those described above. Figure 14 , Figure 15 The circuit structure described herein is not limited by this invention.

[0115] In embodiments of the present invention, such as Figures 9 to 11 As shown, the shockwave balloon device 100 also includes a balloon 202, an outer tube 204, a thiocyanate tube 205, and a needle holder 207 connected in sequence. Electrodes are located inside the balloon 202. The outer tube 204 communicates with the interior of the balloon 202 for introducing or expelling conductive liquid into or out of the balloon 202. A wire 5 passes through the outer tube 204 and the thiocyanate tube 205 and is electrically connected to the needle holder 207. The needle holder 207 is electrically connected to the operating handle 2. Specifically, the shockwave balloon device 100 mainly includes a catheter system 20 and an operating handle 2. The catheter system 20 and the operating handle 2 are connected by a non-separable tubing or by a detachable cable 30 plug, such as... Figures 9 to 11As shown, the handle housing 21 has a cable inlet 22 for connection to the cable 30. The conduit system 20 includes an insulating inner tube 7, an outer tube 204, a hyaluronic acid tube 205, a balloon 202, a tip 201, a radiopaque ring 203, an electrode, a lead wire 5, a stress buffer tube 206, and a needle holder 207. The electrode is located inside the balloon 202. The outer tube 204 communicates with the inside of the balloon 202 for introducing or draining conductive liquid into or out of the balloon 202. The lead wire 5 passes through the outer tube 204 and the hyaluronic acid tube 205 and is electrically connected to the needle holder 207. The needle holder 207 is electrically connected to the operating handle 2. The balloon 202 is made of semi-compliant material Pebax or non-compliant material nylon. The distal end of balloon 202 is fixed to the distal end of insulating inner tube 7. The proximal end of balloon 202 is fused to the distal end of outer tube 204 to form a conductive fluid filling cavity 2021 for balloon 202. The conductive fluid is generally a mixture of physiological saline and contrast agent (1:1), providing a conductive medium for electrode operation and ensuring the balloon 202 is filled and visualized during surgery. The proximal end of insulating inner tube 7 protrudes from the side wall of outer tube 204 to form the guidewire lumen 72 required for surgery. The inner layer of insulating inner tube 7 is made of PTFE. The extremely low coefficient of friction of PTFE facilitates the balloon 202's journey along the guidewire to the lesion location. The outer layer of insulating inner tube 7 is made of Pebax or nylon, providing sufficient support strength for balloon 202 during operation and preventing the insulating inner tube 7 from kinking during balloon 202 transmission or breaking due to shock wave vibration during operation. The outer cross-section of insulating inner tube 7 can be circular or polygonal, and the outer surface of the cross-section of insulating inner tube 7 can have a groove 71 or not. The tip 201 is fixed to the distal end of the insulating inner tube 7. The material of the tip 201 is softer than that of the inner tube and has a certain taper, which facilitates the smooth passage of the balloon 202 through the lesion. The proximal end of the outer tube 204 is fixed together with the distal end of the hypotube 205 to form a fluid filling channel and a lead 5 channel. The filling interface 2072 of the needle hub 207 injects conductive liquid into the channel between the outer tube 204 and the insulating inner tube 7. The conductive liquid is injected into the interior of the balloon 202, causing the interior of the balloon 202 to inflate. The outer layer of the hypotube 205 is coated with a hydrophilic coating to improve the permeability of the catheter 20 system in blood vessels. The needle hub 207 also has an electrical connection port 2071 that is electrically connected to the operating handle 2. A stress buffer tube 206 is provided at the connection between the hypotube 205 and the needle hub 207 to prevent stress concentration and bending of the hypotube 205 at the connection between the needle hub 207. Two contrast rings 203 are fixed on the insulating inner tube 7 of the inner segment of the balloon 202. The contrast rings 203 are used to locate the length of the lesion to suit the working length of the balloon 202, thereby improving the safety of the operation. PtIr10 is generally selected for the contrast rings 203.

[0116] The shockwave balloon device 100 of this invention comprises an axially arranged first electrode group 3 and a second electrode group 4. The shockwave gap is set by the axial distance, which greatly reduces the folded outline of the balloon 202 and avoids the phenomenon that the existing shockwave balloon 202, which uses radial spacing, results in a larger folded outline. The opening of the C-ring allows the wire 5 to pass through, and the connecting groove can be used to embed the wire 5, avoiding the wire 5 occupying extra space and further reducing the folded outline of the balloon 202. The thickness of the first electrode 31, second electrode 32, third electrode 33, fourth electrode 41, fifth electrode 42, and sixth electrode 43 is at least four times the thickness of the electrodes in the existing shockwave balloon 202, further improving the stability of the shockwave generated by the catheter 20 and increasing the efficiency of fragmenting calcified plaques. In addition, the pulse generator adopts a handle type, and the operating handle 2 is small and easy to move, increasing the operability and convenience of the surgeon.

[0117] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention shall still fall within the scope of the present invention.

Claims

1. An electrode for a shockwave balloon device, characterized in that, It includes a first electrode group and a wire that connects the first electrode group. The first electrode group includes a first electrode, a second electrode, and a third electrode arranged side by side with a gap in between. The conductor is electrically connected to the electrode control module to generate shock waves between the first electrode and the second electrode, and between the second electrode and the third electrode.

2. The electrodes of the shockwave balloon device as described in claim 1, characterized in that, The wires include a first wire and a second wire. The distal end of the first wire is electrically connected to the first electrode, and the distal end of the second wire is electrically connected to the third electrode. The proximal ends of the first wire and the proximal ends of the second wire are electrically connected to the electrode control module to conduct the first electrode group.

3. The electrodes of the shockwave balloon device as described in claim 2, characterized in that, The first electrode, the second electrode, and the third electrode are all annular. The first electrode, the second electrode, and the third electrode are respectively provided with a first connecting groove, a first discontinuity notch, and a second discontinuity notch corresponding to the first wire. The first connecting groove, the first discontinuity notch, and the second discontinuity notch are connected to form a first connecting channel. The first wire passes through the first connecting channel and the distal end of the first wire is embedded in the first connecting groove and electrically connected to the first connecting groove. And / or, the third electrode is further provided with a second connecting groove, and the distal end of the second wire is embedded in the second connecting groove and electrically connected to the second connecting groove.

4. The electrodes of the shockwave balloon device as described in claim 1, characterized in that, An insulating inner tube is provided through the middle of the first electrode, the second electrode, and the third electrode, and the first electrode, the second electrode, and the third electrode are fixed on the insulating inner tube.

5. The electrodes of the shockwave balloon device as described in claim 4, characterized in that, A first discharge region is provided between the first electrode and the second electrode, and the other regions between the first electrode and the second electrode, excluding the first discharge region, are filled with a first insulating adhesive portion; a second discharge region is provided between the second electrode and the third electrode, and the other regions between the second electrode and the third electrode, excluding the second discharge region, are filled with a second insulating adhesive portion, and the first insulating adhesive portion and the second insulating adhesive portion connect the first electrode, the second electrode and the third electrode into one unit.

6. The electrodes of the shockwave balloon device as described in claim 1, characterized in that, The first electrode, the second electrode, and the third electrode are arranged in a first direction. The shock wave balloon device also includes a second electrode group. The first electrode group and the second electrode group are arranged sequentially in the first direction, and the second electrode group is located at the proximal end of the first electrode group. The second electrode group includes a fourth electrode, a fifth electrode, and a sixth electrode arranged sequentially and intermittently along the first direction. The wires are electrically connected to the first electrode group, the second electrode group, and the electrode control module to generate shock waves between the first electrode and the second electrode, between the second electrode and the third electrode, between the fourth electrode and the fifth electrode, and between the fifth electrode and the sixth electrode.

7. The electrodes of the shockwave balloon device as described in claim 6, characterized in that, The conductor includes a third conductor, a fourth conductor, and a fifth conductor. The distal end of the third conductor is electrically connected to the first electrode, and the distal end of the fourth conductor is electrically connected to the sixth electrode. The distal end of the fifth conductor is electrically connected to the third electrode, and the proximal end of the fifth conductor is electrically connected to the fourth electrode. The proximal ends of the third conductor and the fourth conductor are electrically connected to the electrode control module to conduct the first electrode group and the second electrode group.

8. The electrodes of the shockwave balloon device as described in claim 7, characterized in that, The first electrode, the second electrode, the third electrode, the fourth electrode, the fifth electrode, and the sixth electrode are all annular. The first electrode, the second electrode, the third electrode, the fourth electrode, the fifth electrode, and the sixth electrode are respectively provided with a third connecting groove, a third discontinuous notch, a fourth discontinuous notch, a fifth discontinuous notch, a sixth discontinuous notch, and a seventh discontinuous notch corresponding to the third wire. The third connecting groove, the third discontinuous notch, the fourth discontinuous notch, the fifth discontinuous notch, the sixth discontinuous notch, and the seventh discontinuous notch are connected to form a second connecting channel. The third wire passes through the second connecting channel and the distal end of the third wire is embedded in the third connecting groove and electrically connected to the third connecting groove. And / or, the sixth electrode is further provided with a fourth connecting groove, and the distal end of the fourth wire is embedded in the fourth connecting groove and electrically connected to the fourth connecting groove; And / or, the third electrode is provided with a fifth connecting groove, the fourth electrode is provided with a sixth connecting groove, the distal end of the fifth wire is embedded in the fifth connecting groove and electrically connected to the fifth connecting groove, and the proximal end of the fifth wire is embedded in the sixth connecting groove and electrically connected to the sixth connecting groove.

9. The electrodes of the shockwave balloon device as described in claim 8, characterized in that, The fourth discontinuous notch is set 180 degrees apart from the fifth connecting groove.

10. The electrodes of the shockwave balloon device as described in claim 6, characterized in that, An insulating inner tube is provided through the middle of the first electrode, the second electrode, the third electrode, the fourth electrode, the fifth electrode, and the sixth electrode, and the first electrode, the second electrode, the third electrode, the fourth electrode, the fifth electrode, and the sixth electrode are fixed on the insulating inner tube.

11. The electrodes of the shockwave balloon device as described in claim 8, characterized in that, A third discharge region is provided between the first electrode and the second electrode, and the other regions between the first electrode and the second electrode, excluding the third discharge region, are filled with a third insulating adhesive portion; a fourth discharge region is provided between the second electrode and the third electrode, and the other regions between the second electrode and the third electrode, excluding the fourth discharge region, are filled with a fourth insulating adhesive portion, the third insulating adhesive portion and the fourth insulating adhesive portion connecting the first electrode, the second electrode and the third electrode into one unit; a fifth discharge region is provided between the fourth electrode and the fifth electrode, and the other regions between the fourth electrode and the fifth electrode, excluding the fifth discharge region, are filled with a fifth insulating adhesive portion; a sixth discharge region is provided between the fifth electrode and the sixth electrode, and the other regions between the fifth electrode and the sixth electrode, excluding the sixth discharge region, are filled with a sixth insulating adhesive portion, the fifth insulating adhesive portion and the sixth insulating adhesive portion connecting the fourth electrode, the fifth electrode and the sixth electrode into one unit.

12. A method for manufacturing electrodes for a shockwave balloon device, characterized in that, Includes the following steps: S1, providing a metal tube, and laser-cutting the metal tube to form a first electrode portion; or, providing a metal plate, and laser-cutting and curling the metal plate to form a first electrode portion; S2, the first electrode portion includes a first electrode, a second electrode and a third electrode arranged in sequence with gaps, a first connecting rod connecting the first electrode and the second electrode, a second connecting rod connecting the second electrode and the third electrode, a first discharge region being provided between the first electrode and the second electrode, and a second discharge region being provided between the second electrode and the third electrode; S3, fill the area between the first electrode and the second electrode, excluding the first discharge area and the first connecting rod, with a first insulating connection portion; and fill the area between the second electrode and the third electrode, excluding the second discharge area and the second connecting rod, with a second insulating connection portion. S4, remove the first connecting rod and the second connecting rod; S5, an insulating layer is filled at the positions of the first connecting rod and the second connecting rod to form a first insulating adhesive portion and a second insulating adhesive portion between the first electrode and the second electrode, and between the second electrode and the third electrode, respectively.

13. A shockwave balloon device, characterized in that, It includes an operating handle and electrodes of the shockwave balloon device as described in any one of claims 1 to 11, wherein the electrode control module is located inside the operating handle.

14. The shockwave balloon device as described in claim 13, characterized in that, The electrode control module includes a high-voltage pulse generating circuit, which includes a first boost circuit and a second boost circuit cascaded together. 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 terminal of the transformer. The output terminal of the transformer is connected to the input terminal of the second boost circuit, and the input terminal 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 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 the target voltage.

15. The shockwave balloon device as described in claim 14, characterized in that, The driving circuit includes a first switching transistor, a second switching transistor, and a current-sensing resistor. The first terminal of the first switching transistor is connected to the power module, the second terminal is connected to the input terminal of the transformer, and the third terminal is grounded through the current-sensing resistor. The first terminal of the second switching transistor is connected to the power module, the second terminal is connected to the input terminal of the transformer, and the third terminal is grounded through the current-sensing resistor.

16. The shockwave balloon device as described in claim 15, characterized in that, The first boost circuit further includes a rectifier circuit, the input terminal of which is connected to the secondary coil of the transformer, and the output terminal of which is connected to the input terminal of the second boost circuit; the second boost circuit includes a Max generator circuit, which includes multiple parallel capacitor branches, one end of each branch being connected to the output terminal of the rectifier circuit, and the other end being grounded.

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