Electrode pair, shock wave balloon catheter and shock wave balloon catheter system

Abstract

The utility model discloses an electrode pair, a shock wave balloon catheter and a shock wave balloon catheter system. The insulating part is arranged on the periphery of the inner electrode in a sleeving mode, and the insulating part is provided with a first opening penetrating through the space between the two ends of the insulating part; the outer electrode is arranged on the periphery of the insulating part in a sleeving mode, and the outer electrode is provided with a second opening penetrating through the portion between the two ends of the outer electrode. By improving the structures of the insulating part and the outer electrode, gaps between the insulating part and the inner electrode as well as between the outer electrode and the insulating part are eliminated, the radial size of the electrode pair is reduced, and when the electrode is correspondingly applied to the shock wave balloon catheter, the outer diameter of the shock wave balloon catheter corresponding to the electrode pair can be reduced; and the ability of the shock wave balloon catheter to pass through a narrow tortuous blood vessel is improved. The insulating part and the outer electrode are circumferential non-closed parts, only the wall thickness of the insulating part and the wall thickness of the outer electrode need to be controlled, the precision requirement for the inner diameter and the outer diameter of the insulating part and the outer electrode is low, and therefore the machining difficulty and the machining cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and more specifically, to an electrode pair. In addition, the utility model also relates to a shock wave balloon catheter and a shock wave balloon catheter system comprising the electrode pair. Background Art

[0002] In recent years, intravascular lithotripsy (IVL) has been commonly used to treat vascular calcification lesions. Intravascular lithotripsy (IVL) uses a shock wave balloon catheter to emit unfocused, circular and pulsed shock waves to the lesion site, destroying the superficial and deep calcification of the lesion site, thereby improving vascular compliance and achieving the purpose of treatment.

[0003] In the prior art, the shock wave balloon catheter comprises a balloon, an inner tube, an outer tube and an electrode pair, the electrode pair comprises an inner electrode, an insulating sleeve and an outer electrode, the inner electrode is arranged on the inner tube, the insulating sleeve is sleeved on the outer periphery of the inner electrode, the outer electrode is sleeved on the outer periphery of the insulating sleeve, and there is a clearance fit between the inner electrode and the insulating sleeve as well as between the insulating sleeve and the outer electrode, which makes the overall outer diameter of the shock wave balloon catheter corresponding to the electrode pair larger, that is, the position corresponding to the electrode pair is the position where the outer diameter of the shock wave balloon catheter is the largest, thereby weakening the ability of the shock wave balloon catheter to pass through narrow and tortuous blood vessels and affecting the treatment effect.

[0004] Therefore, how to reduce the radial dimension of the shock wave balloon catheter at the electrode pair corresponding to the shock wave balloon catheter is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an electrode pair, which is applied to a shock wave balloon catheter to reduce the radial dimension of the shock wave balloon catheter corresponding to the electrode pair.

[0006] Another object of the utility model is to provide a shock wave balloon catheter comprising the electrode pair, which has a small outer diameter and a strong ability to pass through narrow and tortuous blood vessels.

[0007] Another object of the utility model is to provide a shock wave balloon catheter system comprising the shock wave balloon catheter, wherein the shock wave balloon catheter has a strong ability to pass through narrow and tortuous blood vessels and has a good effect in treating calcification.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An electrode pair, applied to a shock wave balloon catheter, comprising:

[0010] Internal electrode;

[0011] An insulating member, sleeved on the outer periphery of the inner electrode, the insulating member is provided with a first opening penetrating between two ends of the insulating member;

[0012] The outer electrode is sleeved on the outer periphery of the insulating member, and the outer electrode is provided with a second opening running through the two ends of the outer electrode.

[0013] Optionally, the first opening and the second opening are aligned.

[0014] Optionally, the two edge portions of the first opening extend between the two edge portions of the second opening; or, the two edge portions of the first opening are aligned with the two edge portions of the second opening respectively.

[0015] Optionally, the number of the inner electrodes is two, and the two inner electrodes are symmetrical with respect to the first opening and the second opening.

[0016] Optionally, the first opening and the second opening are completely staggered.

[0017] Optionally, the center line of the first opening is parallel to or at a preset angle to the axis of the insulating member;

[0018] A center line of the second opening is parallel to or at a preset angle to an axis of the outer electrode.

[0019] Optionally, both ends of the edge portion of the first opening and both ends of the edge portion of the second opening are provided with rounded corners.

[0020] Optionally, both the first opening and the second opening are filled with adhesive.

[0021] Optionally, the first opening and / or the second opening is used to arrange a wire.

[0022] A shock wave balloon catheter, comprising:

[0023] Inner tube;

[0024] A balloon, sleeved on the outer periphery of the inner tube;

[0025] Any one of the above-mentioned electrode pairs is arranged in the balloon, and the inner electrode of the electrode pair is arranged on the outer periphery of the inner tube.

[0026] A shock wave balloon catheter system comprises the shock wave balloon catheter.

[0027] The electrode pair provided by the utility model has a first opening extending through the two ends of the insulating member, so during assembly, the insulating member can be expanded from the first opening by applying an external force to the insulating member, so that the insulating member and the inner electrode can be installed without a matching gap between the insulating member and the inner electrode, and the insulating member can be sleeved outside the inner electrode; similarly, since the outer electrode has a second opening extending through the two ends of the outer electrode, during assembly, the outer electrode can be expanded from the second opening by applying an external force to the outer electrode, so that the outer electrode and the insulating member can be installed without a matching gap between the outer electrode and the insulating member, and the outer electrode can be sleeved outside the insulating member.

[0028] That is to say, compared with the prior art in which both the inner electrode and the insulating sleeve and the insulating sleeve and the outer electrode are fitted with a gap, the utility model improves the structure of the insulating member and the outer electrode, thereby eliminating the gap between the insulating member and the inner electrode and between the outer electrode and the insulating member, thereby relatively reducing the radial size of the electrode pair. When the electrode pair is applied to a shock wave balloon catheter, it is beneficial to reduce the outer diameter of the shock wave balloon catheter at the electrode pair corresponding to the shock wave balloon catheter, thereby improving the ability of the shock wave balloon catheter to pass through narrow and tortuous blood vessels, reducing surgical risks, increasing the success rate of surgery, and ensuring the treatment effect.

[0029] In addition, in the prior art, clearance fit is adopted between the inner electrode and the insulating sleeve, and between the insulating sleeve and the outer electrode, which greatly increases the precision requirements on the inner and outer diameters of the insulating sleeve and the outer electrode, and increases the processing difficulty and processing cost. However, in the embodiment of the utility model, an insulating part with a first opening and an outer electrode with a second opening are adopted, both of which are circumferential non-closed parts, similar to a C-type structure. Therefore, it is only necessary to control the wall thickness of the insulating part and the outer electrode, and the precision requirements on the inner and outer diameters of the insulating part and the outer electrode are low, thereby reducing the processing difficulty and processing cost.

[0030] The shock wave balloon catheter provided by the utility model comprises the above electrode pair and has the above beneficial effects.

[0031] The shock wave balloon catheter system provided by the utility model comprises the shock wave balloon catheter and has the above beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1A schematic diagram of the structure of the electrode pair provided in a specific embodiment of the utility model for use in a shock wave balloon catheter;

[0034] Figure 2 for Figure 1 Right view of;

[0035] Figure 3 is a schematic structural diagram of an insulating member in one embodiment;

[0036] Figure 4 is a schematic structural diagram of an insulating member in another embodiment;

[0037] Figure 5 is a schematic structural diagram of an insulating member in another embodiment;

[0038] Figure 6 The present invention is a schematic structural diagram of a shock wave balloon catheter system provided in a specific embodiment of the present invention.

[0039] Figures 1 to 6 The reference numerals in the figures are as follows:

[0040] 10 is an electrode pair, 11 is an inner electrode, 12 is an insulating member, 121 is a first opening, 122 is a first through hole, 123 is a rounded corner, 13 is an outer electrode, 131 is a second opening, 132 is a second through hole, 14 is a wire, 20 is an inner tube, 30 is a balloon, 40 is an outer tube, and 50 is a host. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] The core of the utility model is to provide an electrode pair, which is applied to a shock wave balloon catheter to reduce the radial dimension of the shock wave balloon catheter corresponding to the electrode pair. Another core of the utility model is to provide a shock wave balloon catheter including the above-mentioned electrode pair, which has a small outer diameter and a strong ability to pass through narrow and tortuous blood vessels. Another core of the utility model is to provide a shock wave balloon catheter system including the above-mentioned shock wave balloon catheter, which has a strong ability to pass through narrow and tortuous blood vessels and a good effect in treating calcification.

[0043] Please refer to Figure 1 and Figure 2The embodiment of the utility model provides an electrode pair, which is applied to a shock wave balloon catheter. The electrode pair includes an inner electrode 11, an insulating member 12 and an outer electrode 13. The insulating member 12 is sleeved on the outer periphery of the inner electrode 11, and the insulating member 12 is provided with a first opening 121 that runs through the two ends of the insulating member 12; the outer electrode 13 is sleeved on the outer periphery of the insulating member 12, and the outer electrode 13 is provided with a second opening 131 that runs through the two ends of the outer electrode 13.

[0044] It can be understood that, since the insulating member 12 is provided with a first opening 121 extending between the two ends of the insulating member 12, during assembly, by applying an external force to the insulating member 12, the insulating member 12 can be expanded from the first opening 121, so that the insulating member 12 and the inner electrode 11 can be installed without a matching gap between the insulating member 12 and the inner electrode 11, and the insulating member 12 can be sleeved outside the inner electrode 11; similarly, since the outer electrode 13 is provided with a second opening 131 extending between the two ends of the outer electrode 13, during assembly, by applying an external force to the outer electrode 13, the outer electrode 13 can be expanded from the second opening 131, so that the outer electrode 13 and the insulating member 12 can be installed without a matching gap between the outer electrode 13 and the insulating member 12, and the outer electrode 13 can be sleeved outside the insulating member 12.

[0045] That is to say, compared with the prior art in which both the inner electrode and the insulating sleeve and the insulating sleeve and the outer electrode are fitted with a gap, the utility model improves the structure of the insulating part 12 and the outer electrode 13, thereby eliminating the gap between the insulating part 12 and the inner electrode 11 and between the outer electrode 13 and the insulating part 12, thereby relatively reducing the radial size of the electrode pair 10. When the electrode pair 10 is applied to a shock wave balloon catheter, it is beneficial to reduce the outer diameter of the shock wave balloon catheter corresponding to the electrode pair 10, thereby improving the ability of the shock wave balloon catheter to pass through narrow and tortuous blood vessels, reducing surgical risks, increasing the success rate of surgery, and ensuring the treatment effect.

[0046] In addition, in the prior art, clearance fit is adopted between the inner electrode and the insulating sleeve, and between the insulating sleeve and the outer electrode, which greatly increases the precision requirements on the inner and outer diameters of the insulating sleeve and the outer electrode, and increases the processing difficulty and processing cost. In the embodiment of the utility model, an insulating part 12 with a first opening 121 and an outer electrode 13 with a second opening 131 are adopted, both of which are circumferential non-closed parts, similar to a C-type structure. Therefore, it is only necessary to control the wall thickness of the insulating part 12 and the outer electrode 13, and the precision requirements on the inner and outer diameters of the insulating part 12 and the outer electrode 13 are low, thereby reducing the processing difficulty and processing cost.

[0047] It should be noted that the present embodiment does not limit the relative positional relationship between the first opening 121 and the second opening 131 , as long as the installation of the insulating member 12 and the external electrode 13 can be achieved.

[0048] Considering the convenience of processing and assembly, in some embodiments, the first opening 121 and the second opening 131 are aligned. It should be noted that the alignment of the first opening 121 and the second opening 131 includes the first opening 121 and the second opening 131 being completely aligned (such as Figure 1 and Figure 2 As shown), that is, the center line of the first opening 121 and the center line of the second opening 131 coincide with each other; of course, the alignment of the first opening 121 and the second opening 131 also includes the alignment of the first opening 121 and the second opening 131 slightly staggered at a certain angle, at which time, the opening size of one of the first opening 121 and the second opening 131 is larger than the opening size of the other, and the opening of the first opening 121 and the second opening 131 with the smaller opening completely falls into the opening of the larger opening of the two. This arrangement of the first opening 121 and the second opening 131 is conducive to the installation and fixation of the insulating member 12 and the external electrode 13; in addition, when the center line of the first opening 121 and the center line of the second opening 131 coincide with each other, it is also convenient to position the insulating member 12 and the external electrode 13 when drilling holes.

[0049] Furthermore, in order to avoid discharge at the first opening 121 and the second opening 131, in some embodiments, the two edge portions of the first opening 121 extend to between the two edge portions of the second opening 131 (eg, Figure 1 and Figure 2 or, the two edges of the first opening 121 are aligned with the two edges of the second opening 131. That is, in this embodiment, the opening size of the first opening 121 is smaller than or equal to the opening size of the second opening 131, so that the insulating member 12 has a certain insulating effect on the external electrode 13 at the first opening 121 and the second opening 131, thereby preventing the internal electrode 11 and the external electrode 13 from discharging at the first opening 121 and the second opening 131.

[0050] Please refer to Figure 2 In some embodiments, the number of the inner electrodes 11 is two, and the two inner electrodes 11 are symmetrical with respect to the first opening 121 and the second opening 131. That is, when the first opening 121 and the second opening 131 are completely aligned, the two inner electrodes 11 have exactly the same relative positional relationship with respect to the first opening 121 and the second opening 131, which helps to ensure that the two inner electrodes 11 have the same discharge intensity.

[0051] In addition, in some other embodiments, the first opening 121 and the second opening 131 are completely staggered. That is, the position of the first opening 121 corresponding to the external electrode 13 is the structural entity of the external electrode 13, and the position of the second opening 131 corresponding to the insulating member 12 is the structural entity of the insulating member 12, which is conducive to making the overall structure more stable.

[0052] Furthermore, in some embodiments, the first opening 121 and the second opening 131 are arranged at 180 degrees, so that the overall structure is more symmetrical, more balanced and more stable.

[0053] Also, please refer to Figure 3 and Figure 4 In some embodiments, the center line of the first opening 121 is parallel to the axis of the insulating member 12 (eg Figure 3 as shown) or at a preset angle (as shown Figure 4 As shown); the center line of the second opening 131 is parallel to the axis of the outer electrode 13 or at a preset angle. When the center line of the first opening 121 is parallel to the axis of the insulating member 12, and the center line of the second opening 131 is parallel to the axis of the outer electrode 13, that is, the first opening 121 is a straight opening along the axis parallel to the first opening 121, and the second opening 131 is a straight opening along the axis parallel to the second opening 131, so that it is convenient to process. When the center line of the first opening 121 is at a preset angle to the axis of the insulating member 12, and the center line of the second opening 131 is at a preset angle to the axis of the outer electrode 13, that is, the first opening 121 and the second opening 131 are oblique openings, compared with other special-shaped openings, the processing is relatively simple. At the same time, after assembly, the insulating member 12 and the inner electrode 11, and the outer electrode 13 and the insulating member 12 are fixed more firmly.

[0054] Also, please refer to Figure 5 In order to avoid tip discharge, in some embodiments, both ends of the edge of the first opening 121 and both ends of the edge of the second opening 131 are provided with rounded corners 123. That is, in this embodiment, by providing the rounded corners 123 at the tips of the edges of the first opening 121 and the second opening 131, the existence of the tips is eliminated to avoid tip discharge.

[0055] In addition, in order to make the insulating member 12 and the outer electrode 13 more firmly fixed, in some embodiments, the first opening 121 and the second opening 131 are filled with adhesive. That is to say, in this embodiment, the inner electrode 11 and the insulating member 12 and the insulating member 12 and the outer electrode 13 are bonded together by adhesive, which, on the one hand, makes the inner electrode 11, the insulating member 12 and the outer electrode 13 more firmly fixed, improving the reliability of the electrode pair 10, and on the other hand, the adhesive can also play an insulating role.

[0056] In addition, in some embodiments, the first opening 121 and / or the second opening 131 are used to set the wire 14. That is, the wire 14 of the inner electrode 11 can pass through the first opening 121 and / or the second opening 131. At this time, the first opening 121 and / or the second opening 131 is equivalent to the role of a wire slot, which can avoid the need to set up an additional space for the wire 14, thereby saving space, reducing the overall outer diameter of the electrode pair 10, and further reducing the outer diameter of the shock wave balloon catheter corresponding to the electrode pair 10, thereby improving the ability of the shock wave balloon catheter to pass through narrow and tortuous blood vessels.

[0057] It should be noted that if Figure 1 As shown, in the embodiment of the utility model, the insulating member 12 is provided with a first through hole 122 penetrating through the thickness thereof, and the outer electrode 13 is provided with a second through hole 132 penetrating through the thickness thereof, and the first through hole 122 and the second through hole 132 are aligned so that the inner electrode 11 is exposed from the first through hole 122 and the second through hole 132, so that when the electrodes are used for a shock wave balloon catheter, the inner electrode 11 and the outer electrode 13 discharge, and the electric arc breaks through the contrast fluid between the inner electrode 11 and the outer electrode 13, causing it to vaporize and expand to generate shock waves.

[0058] In addition, it can be understood that the distance between the inner electrode 11 and the outer electrode 13 affects the intensity of the shock wave during the discharge process. Therefore, the shock wave intensity can be adjusted by adjusting the wall thickness of the insulating member 12 and the opening sizes of the first through hole 122 and the second through hole 132.

[0059] Please refer to Figure 6 In addition to the above-mentioned electrode pair, the utility model also provides a shock wave balloon catheter including the electrode pair 10 disclosed in the above-mentioned embodiment, the shock wave balloon catheter also includes an inner tube 20 and a balloon 30, the balloon 30 is sleeved on the outer periphery of the inner tube 20; the above-mentioned electrode pair 10 is arranged in the balloon 30, and the inner electrode 11 of the electrode pair 10 is arranged on the outer periphery of the inner tube 20.

[0060] As can be seen from the above, the utility model improves the structure of the insulating part 12 and the outer electrode 13 of the electrode pair 10, eliminates the gap between the insulating part 12 and the inner electrode 11 and between the outer electrode 13 and the insulating part 12, thereby reducing the outer diameter of the electrode pair 10, that is, reducing the outer diameter of the shock wave balloon catheter corresponding to the electrode pair 10, thereby improving the ability of the shock wave balloon catheter to pass through narrow and tortuous blood vessels, reducing surgical risks, increasing the success rate of surgery, and ensuring the treatment effect.

[0061] During operation, after the shock wave balloon catheter enters the human body through the femoral artery or the radial artery and reaches the lesion site, the contrast agent is used to expand the balloon 30, and at the same time, a pulse current is stimulated to discharge the inner electrode 11 and the outer electrode 13. The electric arc breaks through the contrast fluid between the inner electrode 11 and the outer electrode 13, causing it to vaporize and expand to generate shock waves. This unfocused, circular and pulsed shock wave will not affect normal vascular soft tissue, but can efficiently and safely destroy the calcification of the middle membrane and the intima of the blood vessel, and improve the compliance of the blood vessel by introducing cracks into the calcified area, thereby achieving the purpose of treatment.

[0062] It should be noted that the embodiments of the present invention do not specifically limit the specific material and structure of the balloon 30. In some embodiments, the balloon 30 is a semi-compliant balloon 30, which has a certain expansion ability and elasticity and can produce a certain deformation, which can make the balloon 30 more closely fit the inner wall of the calcified blood vessel, thereby improving the effect of treating calcification.

[0063] In addition, in some embodiments, the shock wave balloon catheter further comprises an outer tube 40, which is sleeved outside the inner tube 20 and forms a lumen with the inner tube 20, the proximal end of the balloon 30 is connected to the distal end of the outer tube 40, and the distal end of the balloon 30 is connected to the distal end of the inner tube 20, so that the interior of the balloon 30 is connected to the lumen, forming a relatively sealed area with only one channel to the outside. In some embodiments, the balloon 30 is connected to the inner tube 20 and the outer tube 40 respectively by hot melting.

[0064] It should be noted that in the embodiment of the present invention, the proximal end refers to the end of the shock wave balloon catheter close to the operator during the interventional treatment, and the distal end refers to the end of the shock wave balloon catheter far away from the operator during the interventional treatment.

[0065] Furthermore, in some embodiments, the inner cavity of the inner tube 20 is used as a guide wire channel for the guide wire to pass through. When working, the shock wave balloon catheter follows the guide wire, enters the human body through the femoral artery or radial artery and reaches the lesion. The channel between the inner tube 20 and the outer tube 40 can be used as a pressure-inflating and decompression channel for the balloon 30.

[0066] Please continue to refer to Figure 6 In addition to the above-mentioned electrode pair 10 and shock wave balloon catheter, the utility model also provides a shock wave balloon catheter system including the shock wave balloon catheter disclosed in the above embodiment, and the shock wave balloon catheter system also includes a host 50, and the wire 14 of the shock wave balloon catheter is connected to the host 50. Please refer to the prior art for the structure and working principle of the host 50, which will not be repeated herein.

[0067] The key point of this embodiment is that the shock wave balloon catheter disclosed in the above embodiment is used. The shock wave balloon catheter has a small outer diameter, a strong ability to pass through narrow and tortuous blood vessels, and a good treatment effect.

[0068] It should also be noted that, in this specification, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0069] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0070] The electrode pair, shock wave balloon catheter and shock wave balloon catheter system provided by the utility model are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An electrode pair, characterized in that: Applied to a shock wave balloon catheter, the electrode pair comprises: Inner electrode (11); An insulating member (12) is sleeved on the outer periphery of the inner electrode (11), and the insulating member (12) is provided with a first opening (121) penetrating between two ends of the insulating member (12); The outer electrode (13) is sleeved on the outer periphery of the insulating member (12), and the outer electrode (13) is provided with a second opening (131) penetrating between two ends of the outer electrode (13).

2. The electrode pair according to claim 1, characterized in that: The first opening (121) and the second opening (131) are aligned.

3. The electrode pair according to claim 2, characterized in that: The two edge portions of the first opening (121) extend between the two edge portions of the second opening (131); or, the two edge portions of the first opening (121) are respectively aligned with the two edge portions of the second opening (131).

4. The electrode pair according to claim 2, characterized in that: The number of the internal electrodes (11) is two, and the two internal electrodes (11) are symmetrical relative to the first opening (121) and the second opening (131).

5. The electrode pair according to claim 1, characterized in that: The first opening (121) and the second opening (131) are completely staggered.

6. The electrode pair according to any one of claims 1 to 5, characterized in that: The center line of the first opening (121) is parallel to or at a preset angle to the axis of the insulating member (12); The center line of the second opening (131) is parallel to or at a preset angle to the axis of the outer electrode (13).

7. The electrode pair according to any one of claims 1 to 5, characterized in that: Both ends of the edge of the first opening (121) and both ends of the edge of the second opening (131) are provided with rounded corners (123).

8. The electrode pair according to any one of claims 1 to 5, characterized in that: The first opening (121) and the second opening (131) are both filled with adhesive.

9. The electrode pair according to any one of claims 1 to 5, characterized in that: The first opening (121) and / or the second opening (131) are used for arranging a wire (14).

10. A shock wave balloon catheter, characterized in that: include: Inner tube (20); A balloon (30) is sleeved on the outer periphery of the inner tube (20); The electrode pair (10) described in any one of claims 1 to 9 is arranged in the balloon (30), and the inner electrode (11) of the electrode pair (10) is arranged on the outer periphery of the inner tube (20).

11. A shock wave balloon catheter system, characterized in that: Includes the shock wave balloon catheter described in claim 10.

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