Shockwave forming device with valve blood perfusion

Abstract

The utility model discloses a kind of shock wave forming devices with valve blood perfusion, it is related to medical instrument technical field, including catheter sheath, shock wave forming balloon group, shock wave generating assembly and handle;Guide wire is slidably arranged in catheter sheath;Shock wave forming balloon group includes multiple shock wave balloons, shock wave balloon one end is connected guide wire end portion through net-shaped open-close structure, other end is connected catheter sheath end portion through rod-shaped open-close structure;Shock wave generating assembly is located in shock wave balloon, including axial shock wave generating electrode pair and circumferential shock wave generating electrode pair.The utility model can be mechanically supported or loosened blood vessel;And by axial shock wave generating electrode pair and circumferential shock wave generating electrode pair make forward can open and close occlusive plaque, circumferentially can emit shock wave and crack or break up calcium deposit;Moreover, broken calcified plaque or aortic plaque and thrombus etc. are captured, and immediate protection is provided to medical operation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a shock wave shaping device with valve blood perfusion. Background Technology

[0002] Vascular stenosis refers to the narrowing of blood vessels in the human body, including arteries, veins, coronary arteries, peripheral blood vessels, and intracranial blood vessels, due to abnormal lipid metabolism. Lipids in the blood deposit on the originally smooth inner lining of the blood vessels, gradually accumulating into atherosclerotic plaques. Over time, these plaques increase in number and may even calcify, causing narrowing of the blood vessel lumen, obstructing blood flow, and leading to ischemia in downstream blood vessels and the body, resulting in corresponding clinical manifestations. If the stenosis occurs in the coronary arteries, it can cause palpitations, chest pain, shortness of breath, and angina pectoris; in severe cases, it can lead to insufficient blood supply to the myocardium or myocardial necrosis. If it occurs in the peripheral blood vessels, it can cause decreased skin temperature, muscle atrophy, intermittent claudication, or even necrosis or amputation of distal limbs. If it occurs intracranially, it can cause dizziness, syncope, and even brain tissue damage and brain dysfunction.

[0003] Current angioplasty involves placing an expandable balloon inside the blood vessel. The rapid expansion of the balloon applies mechanical stress to the calcified lesions, causing them to break up. However, balloon angioplasty is only suitable for large, concentrated calcified deposits and cannot address scattered or deep-seated calcifications in the ventricles, resulting in low and incomplete calcium removal efficiency. If the patient has severe arterial calcification or a long, narrowed segment of the vessel, balloon angioplasty is less effective.

[0004] Rapid balloon dilation can cause sudden pressure changes in the blood vessel wall, easily damaging the vessel and even causing thrombosis. Furthermore, balloon dilation requires very high pressure (sometimes reaching 20 to 30 atmospheres, or even 40 atmospheres). Such pressure typically leads to a significantly increased probability of rebound stenosis, dissection, perforation, and rupture of the blood vessel. These surgical events are particularly severe in cases of eccentric calcified lesions because the balloon pressure acts on the non-calcified soft tissue.

[0005] When a patient's blood vessels have hard plaques and severe narrowing, the balloon may not be able to pass through the calcified area at all, thus failing to achieve a therapeutic effect. Therefore, more effective medical devices are needed to solve this problem. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a shock wave shaping device with valve blood perfusion, the specific technical solution of which is as follows: A shock wave shaping device with valvular blood flow perfusion capability, comprising: A catheter sheath, in which a guidewire is slidably disposed; A shockwave angioplasty balloon assembly is located at one end of the catheter sheath and includes multiple shockwave balloons arranged circumferentially along the axis of the catheter sheath. One end of each shockwave balloon is connected to the end of the guidewire through a mesh opening and closing structure, and the other end is connected to the end of the catheter sheath through a rod opening and closing structure. A shock wave generating component, disposed within the shock wave balloon, includes an axial shock wave generating electrode pair and a circumferential shock wave generating electrode pair; A handle is located at the other end of the catheter sheath. The handle is equipped with a balloon assembly opening and closing control, a balloon inflation and deflation control, and a shock wave generation control. The balloon assembly opening and closing control is connected to the guidewire, the balloon inflation and deflation control is connected to the shock wave balloon, and the shock wave generation control is connected to the shock wave generation assembly.

[0007] Preferably, the shockwave angioplasty balloon assembly further includes an elastic skeleton, one end of which is connected to the end of the guidewire to form the mesh-like opening and closing structure, and the other end of which is connected to the end of the catheter sheath to form the rod-like opening and closing structure.

[0008] Preferably, the axial shock wave generating electrode pair includes: The inner sleeve of the first electrode is sleeved on the elastic skeleton; The outer sleeve of the first electrode is fitted onto the outer side of the inner sleeve of the first electrode; A first insulating sleeve is fitted between the inner sleeve of the first electrode and the outer sleeve of the first electrode. One end of the first insulating sleeve is recessed inward relative to the end of the outer sleeve of the first electrode to form an axial shock wave divergence cavity between the end of the outer sleeve of the first electrode and the inner sleeve of the first electrode.

[0009] Preferably, the circumferential shock wave generating electrode pair includes: The inner sleeve of the second electrode is sleeved on the elastic skeleton; The second electrode outer sleeve is fitted outside the second electrode inner sleeve, and a shock wave divergence hole is provided on the side of the second electrode outer sleeve away from the axis of the catheter sheath. The second insulating sleeve is sleeved between the inner sleeve of the second electrode and the outer sleeve of the second electrode. The second insulating sleeve has an opening groove opposite to the shock wave divergence hole. The two ends of the opening groove are recessed away from the shock wave divergence hole so that a circumferential shock wave divergence cavity is formed between the shock wave divergence hole and the inner sleeve of the second electrode.

[0010] Preferably, the shockwave balloon is a compliant balloon, a semi-compliant balloon, or a non-compliant balloon.

[0011] Preferably, the end of the rod-shaped opening and closing structure is formed with a sliding sleeve, which is fixedly connected to the end of the catheter sheath and slidably sleeved on the guidewire.

[0012] Preferably: A catheter is also connected between the shockwave balloon and the catheter sheath, and the catheter is sleeved outside the rod-shaped opening and closing structure; A stress-resistant sleeve is also provided between the catheter sheath and the handle.

[0013] Preferably: The balloon inflation / deflation control device includes a fluid guide tube disposed in the catheter, one end of which extends into the shock wave balloon, and the other end extends to the outside of the handle and is connected to a fluid inlet connector. The shock wave generation control device includes a wire disposed inside the conduit, one end of which is connected to the shock wave generation component, and the other end extends to the outside of the handle and is connected to an electrical control connector.

[0014] This invention provides a shockwave angioplasty device with valvular blood flow perfusion. A guidewire is slidably positioned within a catheter sheath, and the ends of the guidewire and catheter sheath are connected to shockwave balloons via mesh-like and rod-like opening / closing structures, respectively. Pulling or pushing the guidewire allows multiple shockwave balloons to move away from or towards each other, mechanically supporting or releasing the blood vessel. Furthermore, by incorporating axial and circumferential shockwave generating electrode pairs within the shockwave balloons, anterograde closure of occluded plaques is possible, allowing the catheter to smoothly pass through lesions with high stenosis. Circumferential shockwaves can be emitted to dissolve or break up calcium deposits. Moreover, multiple shockwave balloons can be brought together to capture broken calcified plaques, aortic plaques, and thrombi, providing immediate protection for medical procedures. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A front view of a shock wave shaping device with valve blood perfusion provided for an embodiment of this utility model; Figure 2 A perspective view of the hidden portion structure of the shockwave shaping balloon assembly provided for an embodiment of this utility model; Figure 3 for Figure 2 A magnified view of part A in the middle; Figure 4 A cross-sectional front view of the shockwave shaping balloon assembly provided in this embodiment of the utility model; Figure 5 for Figure 4A magnified view of part B in the middle section; Figure 6 for Figure 4 A magnified view of part C in the middle.

[0017] Figure Labels Catheter sheath; 11-guidewire; Shockwave angioplasty balloon assembly; 21-Shockwave balloon; 22-Mesh opening and closing structure; 23-Rod opening and closing structure; 231-Sliding sleeve; 24-Elastic skeleton; 25-Catheter; Shock wave generating component; 31-Axial shock wave generating electrode pair; 311-Inner sleeve of first electrode; 312-Outer sleeve of first electrode; 313-First insulating sleeve; 314-Axial shock wave divergence cavity; 32-Circumferential shock wave generating electrode pair; 321-Inner sleeve of second electrode; 322-Outer sleeve of second electrode; 3221-Shock wave divergence hole; 323-Second insulating sleeve; 3231-Opening slot; 324-Circumferential shock wave divergence cavity; Handle; 41-Balloon assembly opening and closing control; 42-Balloon inflation and deflation control; 421-Liquid guide tube; 422-Liquid inlet connector; 43-Shock wave generation control; 431-Electrical control connector; Stress-resistant sheath. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0019] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1 to 6 This embodiment provides a shock wave shaping device with valve blood perfusion, including a catheter sheath 1, a shock wave shaping balloon assembly 2, a shock wave generating component 3, and a handle 4.

[0024] A guidewire 11 is slidably disposed inside the catheter sheath 1.

[0025] Shockwave shaping balloon assembly 2 is located at one end of catheter sheath 1, including multiple shockwave balloons 21 arranged circumferentially along the axis of catheter sheath 1. One end of shockwave balloon 21 is connected to the end of guidewire 11 through mesh opening and closing structure 22, and the other end is connected to the end of catheter sheath 1 through rod opening and closing structure 23.

[0026] The shock wave generating component 3 is disposed inside the shock wave balloon 21 and includes an axial shock wave generating electrode pair 31 and a circumferential shock wave generating electrode pair 32.

[0027] The handle 4 is located at the other end of the catheter sheath 1. The handle 4 is equipped with a balloon assembly opening and closing control 41, a balloon inflation and deflation control 42, and a shock wave generation control 43. The balloon assembly opening and closing control 41 is connected to the guidewire 11, the balloon inflation and deflation control 42 is connected to the shock wave balloon 21, and the shock wave generation control 43 is connected to the shock wave generation assembly 3.

[0028] The number of shockwave balloons 21 can be 3, 4, or 5. The balloon group opening and closing control component 41 can be used to control the guidewire 11 to slide within the catheter sheath 1. When the guidewire 11 is pulled, the guidewire 11 slides towards the proximal end of the catheter sheath 1, and the end of the guidewire 11 and the end of the catheter sheath 1 approach each other, thereby causing the mesh opening and closing structure 22 and the rod opening and closing structure 23 to push the shockwave balloons 21 outward, causing the shockwave shaping balloon group 2 to open, so that the shockwave balloons 21 contact the inner wall of the blood vessel. At this time, liquid is injected into the shockwave balloons 21 through the balloon inflation and deflation control component 42, and a certain pressure is applied to make the shockwave balloons 21 inflated. At least a part of the outer surface of the balloon contacts the blood vessel wall and the calcified lesion area of ​​the blood vessel. Then, the shockwave generation control component 43 controls the shockwave generation component 3 to generate shockwaves. The shockwaves generated by the electrode pair are radially conducted to the surface of the balloon through the liquid inside the balloon, and then conducted to the calcified lesion through the surface of the balloon. When a shock wave is transmitted to the calcified lesion, the compressive stress of the shock wave causes the calcified tissue to soften, rupture, or break up the calcium deposits. A shock wave of appropriate intensity can destroy the calcified tissue without placing additional burden on the surrounding soft tissue. The axial shock wave generating electrode pair 31 generates a shock wave along the axial direction of the guidewire 11, which can forward open the occluded plaque, allowing the catheter to pass smoothly through lesions with high stenosis. The circumferential shock wave generating electrode pair 32 generates a shock wave along the radial direction of the guidewire 11, rupturing or breaking up the calcium deposits. One axial shock wave generating electrode pair 31 and multiple circumferential shock wave generating electrode pairs 32 can be arranged side-by-side within a shock wave balloon 21 to facilitate the rupture of calcified plaques along the length of the vessel. The operator can select a single electrode to send the shock wave, or sequentially activate the electrode pairs, or simultaneously activate all electrode pairs, greatly facilitating the operator's intraoperative manipulation. After the calcified plaque ruptures, the balloon inflation / deflation control device 42 controls the shrinkage of the shockwave balloon 21 and pushes the guidewire 11, causing the end of the guidewire 11 and the end of the catheter sheath 1 to move away from each other. This causes the mesh opening / closing structure 22 and the rod opening / closing structure 23 to pull the shockwave balloon 21 inward, causing the shockwave angioplasty balloon assembly 2 to close, thereby capturing the broken calcified plaque, aortic plaque, and thrombus. Since the opening and closing of the shockwave angioplasty balloon assembly 2 is achieved by pushing or pulling the shockwave balloon 21 through the mesh opening / closing structure 22 and the rod opening / closing structure 23, it will not obstruct the valve blood flow when the blood vessel is expanded during valve angioplasty and dilation surgery.

[0029] The shockwave angioplasty device with valvular blood flow perfusion provided in this embodiment uses a guidewire 11 slidably disposed within a catheter sheath 1. The ends of the guidewire 11 and the catheter sheath 1 are connected to shockwave balloons 21 via a mesh opening and closing structure 22 and a rod opening and closing structure 23, respectively. Pulling or pushing the guidewire 11 can cause multiple shockwave balloons 21 to move away from or closer to each other, thereby mechanically supporting or releasing the blood vessel. Furthermore, by setting axial shockwave generating electrode pairs 31 and circumferential shockwave generating electrode pairs 32 within the shockwave balloons 21, occluded plaques can be opened forward, allowing the catheter to pass smoothly through lesions with high stenosis. Circumferential shockwaves can be emitted to dissolve or break up calcium deposits. Moreover, multiple shockwave balloons 21 can be closed together to capture broken calcified plaques, aortic plaques, and thrombi, providing immediate protection for medical procedures.

[0030] Further, please see Figure 2 The shockwave angioplasty balloon assembly 2 also includes an elastic skeleton 24. One end of the elastic skeleton 24 is connected to the end of the guidewire 11 to form a mesh-shaped opening and closing structure 22, and the other end is connected to the end of the catheter sheath 1 to form a rod-shaped opening and closing structure 23.

[0031] Specifically, the elastic skeleton 24 can be a stone retrieval basket, the mesh portion of the stone retrieval basket forms a mesh-shaped opening and closing structure 22, and the edge of the stone retrieval basket forms multiple strips extending toward the duct sheath 1 to form a rod-shaped opening and closing structure 23.

[0032] Further, please see Figure 5 The axial shock wave generating electrode pair 31 includes a first electrode inner sleeve 311, a first electrode outer sleeve 312, and a first insulating sleeve 313.

[0033] The inner sleeve 311 of the first electrode is sleeved on the elastic skeleton 24.

[0034] The outer sleeve 312 of the first electrode is sleeved on the outside of the inner sleeve 311 of the first electrode.

[0035] The first insulating sleeve 313 is sleeved between the inner sleeve 311 of the first electrode and the outer sleeve 312 of the first electrode. The first insulating sleeve 313 is recessed inward at one end relative to the end of the outer sleeve 312 of the first electrode so that an axial shock wave diverging cavity 314 is formed between the end of the outer sleeve 312 of the first electrode and the inner sleeve 311 of the first electrode.

[0036] Specifically, the first insulating sleeve 313 separates the inner sleeve 311 and the outer sleeve 312 of the first electrode, allowing the liquid inside the shock wave balloon 21 to flow into the gap between the inner sleeve 311 and the outer sleeve 312. An instantaneous high voltage is applied to the electrodes to generate an electric arc. The expansion and collapse of the bubbles generated by the arc produce a shock wave, which, guided by the axial shock wave divergence cavity 314, diverges axially towards the guide wire 11. The shock wave generation principle is based on the electrohydraulic effect. Generating shock waves through the electrohydraulic effect is a conventional technique in this field, and therefore will not be elaborated upon in this embodiment.

[0037] Further reading is available upon request. Figure 5 The circumferential shock wave generating electrode pair 32 includes a second electrode inner sleeve 321, a second electrode outer sleeve 322, and a second insulating sleeve 323.

[0038] The inner sleeve 321 of the second electrode is sleeved on the elastic skeleton 24.

[0039] The second electrode outer sleeve 322 is sleeved outside the second electrode inner sleeve 321, and a shock wave divergence hole 3221 is provided on the side of the second electrode outer sleeve 322 away from the axis of the catheter sheath 1.

[0040] The second insulating sleeve 323 is sleeved between the inner sleeve 321 of the second electrode and the outer sleeve 322 of the second electrode. An opening groove 3231 is provided on the second insulating sleeve 323 at the position opposite to the shock wave divergence hole 3221. The two ends of the opening groove 3231 are recessed away from the shock wave divergence hole 3221, so that a circumferential shock wave divergence cavity 324 is formed between the shock wave divergence hole 3221 and the inner sleeve 321 of the second electrode.

[0041] Specifically, the second insulating sleeve 323 separates the second electrode inner sleeve 321 and the second electrode outer sleeve 322, so that a gap is formed on the second electrode outer sleeve 322 relative to the inner wall of the shock wave divergence hole 3221, the inner wall of the opening groove 3231 and the surface of the first electrode inner sleeve 321. The liquid in the shock wave balloon 21 can flow into the gap. When the electrode is subjected to instantaneous high voltage, an electric arc is generated. The expansion and collapse of the bubble generated by the electric arc are accompanied by the generation of a shock wave, which is guided by the circumferential shock wave divergence cavity 324 and the shock wave divergence hole 3221 and diverges radially along the guide wire 11.

[0042] The first electrode inner sleeve 311 and the second electrode inner sleeve 321 can be integrated into a single electrode sheet. The axial shock wave generating electrode pair 31 and the circumferential shock wave generating electrode pair 32 can be integrated into a single electrode pair, thereby reducing the arrangement volume. A limiting ring can also be provided on the elastic frame 24. The limiting ring abuts against the inner sidewall of the first electrode inner sleeve 311 and / or the second electrode inner sleeve 321, thereby limiting the displacement of the electrode inner sleeves.

[0043] Furthermore, the shockwave balloon 21 can be a compliant, semi-compliant, or non-compliant balloon. A compliant balloon has excellent stretch, expansion, and insulation properties, and does not require folding, thus significantly reducing the difficulty of distal catheter manipulation. Semi-compliant or non-compliant balloons can apply high pressure (10-30 ATM), expanding the area of ​​vascular calcification lesions.

[0044] Furthermore, a sliding sleeve 231 is formed at the end of the rod-shaped opening and closing structure 23. The sliding sleeve 231 is fixedly connected to the end of the catheter sheath 1 and slidably sleeved on the guidewire 11. This makes it easier for the guidewire 11 to slide within the catheter sheath 1.

[0045] Furthermore, a catheter 25 is connected between the shockwave balloon 21 and the catheter sheath 1. The catheter 25 is sleeved on the outside of the rod-shaped opening and closing structure 23, which can protect the components on the rod-shaped opening and closing structure 23.

[0046] A stress-resistant sleeve 5 is also provided between the catheter sheath 1 and the handle 4 to prevent damage to the connection between the catheter sheath 1 and the handle 4.

[0047] Furthermore, the balloon inflation control component 42 includes a fluid guide tube 421 disposed within the catheter 25, with one end of the fluid guide tube 421 extending into the shockwave balloon 21 and the other end extending to the outside of the handle 4 and connected to a fluid inlet connector 422.

[0048] The shock wave generating control component 43 includes a wire disposed inside the conduit 25, one end of which is connected to the shock wave generating component 3, and the other end extends to the outside of the handle 4 and is connected to an electrical control connector 431.

[0049] Explanation of the principle: The number of shockwave balloons 21 can be 3, 4, or 5. The balloon group opening and closing control 41 can be used to control the guidewire 11 to slide within the catheter sheath 1. When the guidewire 11 is pulled, the guidewire 11 slides towards the proximal end of the catheter sheath 1, and the end of the guidewire 11 and the end of the catheter sheath 1 approach each other, thereby causing the mesh opening and closing structure 22 and the rod opening and closing structure 23 to push the shockwave balloon 21 outward, causing the shockwave shaping balloon group 2 to open, so that the shockwave balloon 21 contacts the inner wall of the blood vessel. At this time, liquid is injected into the shockwave balloon 21 through the balloon inflation and deflation control 42, and a certain pressure is applied to inflate the shockwave balloon 21. At least a part of the outer surface of the balloon contacts the blood vessel wall and the calcified lesion area of ​​the blood vessel. Then, the shockwave generation control 43 controls the shockwave generation component 3 to generate shockwaves. The shockwaves generated by the electrode pair are radially conducted to the balloon surface through the liquid inside the balloon, and then conducted to the calcified lesion through the surface of the balloon. When a shock wave is transmitted to the calcified lesion, the compressive stress of the shock wave causes the calcified tissue to soften, rupture, or break up the calcium deposits. A shock wave of appropriate intensity can destroy the calcified tissue without placing additional burden on the surrounding soft tissue. The axial shock wave generating electrode pair 31 generates a shock wave along the axial direction of the guidewire 11, which can forward open the occluded plaque, allowing the catheter to pass smoothly through lesions with high stenosis. The circumferential shock wave generating electrode pair 32 generates a shock wave along the radial direction of the guidewire 11, rupturing or breaking up the calcium deposits. One axial shock wave generating electrode pair 31 and multiple circumferential shock wave generating electrode pairs 32 can be arranged side-by-side within a shock wave balloon 21 to facilitate the rupture of calcified plaques along the length of the vessel. The operator can select a single electrode to send the shock wave, or sequentially activate the electrode pairs, or simultaneously activate all electrode pairs, greatly facilitating the operator's intraoperative manipulation. After the calcified plaque ruptures, the balloon inflation / deflation control device 42 controls the shrinkage of the shockwave balloon 21 and pushes the guidewire 11, causing the end of the guidewire 11 and the end of the catheter sheath 1 to move away from each other. This causes the mesh opening / closing structure 22 and the rod opening / closing structure 23 to pull the shockwave balloon 21 inward, causing the shockwave angioplasty balloon assembly 2 to close, thereby capturing the broken calcified plaque, aortic plaque, and thrombus. Since the opening and closing of the shockwave angioplasty balloon assembly 2 is achieved by pushing or pulling the shockwave balloon 21 through the mesh opening / closing structure 22 and the rod opening / closing structure 23, it will not obstruct the valve blood flow when the blood vessel is expanded during valve angioplasty and dilation surgery.

[0050] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A shock wave shaping device with valve blood perfusion capability, characterized in that, include: The catheter sheath (1) has a guidewire (11) slidably disposed inside it. Shockwave angioplasty balloon assembly (2) is located at one end of the catheter sheath (1) and includes multiple shockwave balloons (21) arranged circumferentially along the axis of the catheter sheath (1). One end of the shockwave balloon (21) is connected to the end of the guidewire (11) through a mesh opening and closing structure (22), and the other end is connected to the end of the catheter sheath (1) through a rod opening and closing structure (23). Shock wave generating component (3), disposed inside the shock wave balloon (21), includes an axial shock wave generating electrode pair (31) and a circumferential shock wave generating electrode pair (32). A handle (4) is located at the other end of the catheter sheath (1). The handle (4) is provided with a balloon assembly opening and closing control (41), a balloon inflation control (42), and a shock wave generation control (43). The balloon assembly opening and closing control (41) is connected to the guidewire (11), the balloon inflation control (42) is connected to the shock wave balloon (21), and the shock wave generation control (43) is connected to the shock wave generation assembly (3).

2. The shock wave shaping device with valve blood perfusion according to claim 1, characterized in that, The shockwave angioplasty balloon assembly (2) also includes an elastic skeleton (24), one end of which is connected to the end of the guidewire (11) to form the mesh opening and closing structure (22), and the other end is connected to the end of the catheter sheath (1) to form the rod opening and closing structure (23).

3. The shock wave shaping device with valve blood perfusion according to claim 2, characterized in that, The axial shock wave generating electrode pair (31) includes: The first electrode inner sleeve (311) is sleeved on the elastic skeleton (24); The outer sleeve (312) of the first electrode is sleeved on the outside of the inner sleeve (311) of the first electrode; The first insulating sleeve (313) is sleeved between the first electrode inner sleeve (311) and the first electrode outer sleeve (312). The first insulating sleeve (313) is recessed inward at one end relative to the end of the first electrode outer sleeve (312) so that an axial shock wave diverging cavity (314) is formed between the end of the first electrode outer sleeve (312) and the first electrode inner sleeve (311).

4. The shock wave shaping device with valve blood perfusion according to claim 2, characterized in that, The circumferential shock wave generating electrode pair (32) includes: The second electrode inner sleeve (321) is sleeved on the elastic skeleton (24); The second electrode outer sleeve (322) is sleeved on the outside of the second electrode inner sleeve (321), and a shock wave divergence hole (3221) is provided on the side of the second electrode outer sleeve (322) away from the axis of the catheter sheath (1). The second insulating sleeve (323) is sleeved between the second electrode inner sleeve (321) and the second electrode outer sleeve (322). The second insulating sleeve (323) has an opening groove (3231) opposite to the shock wave divergence hole (3221). The two ends of the opening groove (3231) are recessed away from the shock wave divergence hole (3221) so that a circumferential shock wave divergence cavity (324) is formed between the shock wave divergence hole (3221) and the second electrode inner sleeve (321).

5. The shock wave shaping device with valve blood perfusion according to claim 1, characterized in that, The shockwave balloon (21) is a compliant balloon, a semi-compliant balloon, or a non-compliant balloon.

6. The shock wave shaping device with valve blood perfusion according to claim 2, characterized in that, The rod-shaped opening and closing structure (23) has a sliding sleeve (231) at its end. The sliding sleeve (231) is fixedly connected to the end of the catheter sheath (1) and slidably sleeved on the guide wire (11).

7. The shock wave shaping device with valve blood perfusion according to any one of claims 1 to 6, characterized in that: A catheter (25) is also connected between the shockwave balloon (21) and the catheter sheath (1), and the catheter (25) is sleeved outside the rod-shaped opening and closing structure (23); A stress-resistant sleeve (5) is also provided between the catheter sheath (1) and the handle (4).

8. The shock wave shaping device with valve blood perfusion according to claim 7, characterized in that: The balloon inflation control device (42) includes a fluid guide tube (421) disposed in the catheter (25), one end of the fluid guide tube (421) extends into the shock wave balloon (21), and the other end extends to the outside of the handle (4) and is connected to a fluid inlet connector (422). The shock wave generation control component (43) includes a wire disposed in the conduit (25), one end of which is connected to the shock wave generation component (3), and the other end extends to the outside of the handle (4) and is connected to an electrical control connector (431).

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