Shockwave head structure and shockwave therapeutic apparatus

Abstract

A shockwave head structure and a shockwave therapeutic apparatus. The shockwave head structure comprises a shockwave head body (1) and a coupling layer (2); the coupling layer (2) is arranged at a free end of the shockwave head body (1) and is integrally injection-molded at the free end of the shockwave head body (1); the end surface of the coupling layer (2) distant from the shockwave head body (1) is a first plane (21); and the first plane (21) is configured to fit the surface of a subject.

Description

Shock wave head structure and shock wave therapy device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 20, 2023, with application number 202321581162.X. The entire contents of this application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of medical devices, for example, to a shock wave head structure and a shock wave therapy device. Background Art

[0003] Shock wave therapy, an extension of shock wave lithotripsy, has become increasingly common in recent years. Shock wave therapy devices are primarily categorized as focused and divergent. Focused shock wave therapy devices offer strong shock wave energy and a large propagation depth, but they are expensive and bulky. Divergent shock wave therapy devices are less expensive than focused shock wave therapy devices and are therefore more widely used. The principle of a divergent shock wave therapy device is to use a rapidly moving metal bullet to strike a metal shock wave head. The impact force generated during the collision is transmitted to the shock wave head, generating an instantaneous pressure of up to tens of MPa within the shock wave head. This pressure is then transmitted along the direction of the pressure into the human body, which is in contact with the output end of the shock wave head.

[0004] The shock wave head in the related art is usually composed of a shock wave head body and a coupling layer made of metal. The coupling layer is connected to the shock wave head body through springs and clips, and the coupling layer is the end portion for contacting the human body. However, this type of shock wave head has poor contact stability with the human body, poor shock treatment effect, and a complex structure.

[0005] Summary of the Invention

[0006] The present application provides a shock wave head structure and a shock wave therapy device to solve the problems of poor contact stability between the shock wave head and the human body, poor shock therapy effect, and complex structure.

[0007] A shock wave head structure, comprising:

[0008] Shockwave head body;

[0009] A coupling layer is provided at the free end of the shock wave head body and is integrally injection molded on the free end of the shock wave head body. The end surface of the coupling layer away from the shock wave head body is a first plane, and the first plane is configured to fit the surface of the impacted object.

[0010] Optionally, a first spherical groove is concavely provided on the end surface of the shock wave head body close to the coupling layer, and a first protrusion is convexly provided on the coupling layer. The first protrusion and the first plane are spaced apart and distributed at both ends of the coupling layer in the thickness direction, and the first protrusion and the first spherical groove are matched.

[0011] Optionally, a second protrusion is convexly provided on the end surface of the shock wave head body close to the coupling layer, and a second spherical groove is concavely provided on the coupling layer. The second spherical groove and the first plane are spaced apart and distributed at both ends of the coupling layer in the thickness direction, and the second protrusion cooperates with the second spherical groove.

[0012] Optionally, the end surface of the coupling layer close to the shock wave body is a second plane, and the second plane and the first plane are distributed at both ends of the coupling layer in the thickness direction; the end surface of the shock wave head body close to the coupling layer is a third plane, and the second plane is in contact with the third plane.

[0013] Optionally, there are multiple coupling layers, and the multiple coupling layers are distributed along the thickness direction of the coupling layers. One of the multiple coupling layers away from the shock wave head body is provided with the first plane.

[0014] Optionally, there are two coupling layers, which are a first coupling layer and a second coupling layer. The first coupling layer is distributed between the shock wave head body and the second coupling layer, and the end surface of the second coupling layer away from the shock wave head body is the first plane.

[0015] Optionally, the coupling layer is made of epoxy resin material.

[0016] Optionally, the coupling layer is made of silicone material.

[0017] Optionally, the shock wave head body is made of titanium alloy material.

[0018] A shock wave therapeutic device comprises a gun head and the above-mentioned shock wave head structure, wherein the shock wave head structure is arranged at the output end of the gun head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a structural schematic diagram 1 of a shock wave head structure provided by a specific embodiment of the present application;

[0020] FIG2 is a second structural diagram of a shock wave head structure provided by a specific embodiment of the present application;

[0021] FIG3 is a third structural diagram of a shock wave head structure provided by a specific embodiment of the present application;

[0022] FIG4 is a fourth structural diagram of the shock wave head structure provided in a specific embodiment of the present application.

[0023] In the picture:

[0024] 1. Shock wave head body; 11. First spherical groove; 13. Third plane; 14. First protrusion;

[0025] 2. Coupling layer; 21. First plane; 22. Second spherical groove; 23. Second protrusion; 24. Second plane. DETAILED DESCRIPTION

[0026] The present application is described below with reference to the accompanying drawings and embodiments.

[0027] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0028] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] The present application provides a shock wave head structure, as shown in Figures 1-4, which includes a shock wave head body 1 and a coupling layer 2. The coupling layer 2 is arranged at the free end of the shock wave head body 1 and is integrally injection molded on the free end of the shock wave head body 1. The end surface of the coupling layer 2 away from the shock wave head body 1 is a first plane 21, and the first plane 21 is configured to fit the surface of the impacted body.

[0031] In the shock wave head structure of the present application, a coupling layer 2 is provided at the free end of the shock wave head body 1. When it is necessary to act on the object to be impacted, the shock wave head structure is assembled on the gun head of the shock wave therapy device, and the first plane 21 of the coupling layer 2 is brought into contact with the surface of the object to be impacted. The impact force passes through the shock wave head body 1 and the coupling layer 2 in sequence and enters the object to be impacted, thereby achieving shock treatment of the object to be impacted. The end surface of the coupling layer 2 that contacts the surface of the object to be impacted is set as the first plane 21, which can increase the contact area between the coupling layer 2 and the surface of the object to be impacted, improve the contact stability between the shock wave head structure and the surface of the object to be impacted, and thus effectively improve the shock treatment effect. Secondly, the coupling layer 2 is provided as an integral injection molding at the free end of the shock wave head body 1, which effectively improves the connection reliability between the coupling layer 2 and the shock wave head body 1, thereby further improving the shock treatment effect of the shock wave head structure. In addition, the structure is simple, effectively reducing the number of parts and components, and reducing production costs.

[0032] As shown in Figure 1, the shock wave head body 1 has a first spherical groove 11 recessed into the end surface near the coupling layer 2, and the coupling layer 2 has a first protrusion 14 projecting therefrom. The first protrusion 14 and the first flat surface 21 are spaced apart at both ends of the coupling layer 2 in the thickness direction, and the first protrusion 14 and the first spherical groove 11 cooperate. When the location to be impacted on the impacted object is a local point, the shock wave head body 1 and the coupling layer 2 are configured to cooperate with the first spherical groove 11 and the first protrusion 14. This not only improves the contact stability between the shock wave head structure and the surface of the impacted object, but also enables the force applied to the impacted object to converge into a point-like force within the impacted object, effectively enhancing the effect of the impact treatment on the local area within the impacted object, and providing good targeted treatment.

[0033] As an alternative, as shown in FIG2 , a second protrusion 23 is convexly provided on the end surface of the shock wave head body 1 near the coupling layer 2, and a second spherical groove 22 is concavely provided on the coupling layer 2. The second spherical groove 22 and the first flat surface 21 are spaced apart at both ends of the coupling layer 2 in the thickness direction, and the second protrusion 23 cooperates with the second spherical groove 22. When the area of ​​the impacted object to be impacted is large, the shock wave head body 1 and the coupling layer 2 are configured to cooperate with the second spherical groove 22 and the second protrusion 23. This not only improves the contact stability between the shock wave head structure and the surface of the impacted object, but also allows the force applied to the impacted object to be divergent within the impacted object, enabling impact treatment of a large area of ​​the impacted object with high treatment efficiency.

[0034] As another alternative, as shown in FIG3 , the end surface of the coupling layer 2 proximal to the shockwave body 1 is a second plane 24, with the second plane 24 and the first plane 21 spaced apart at opposite ends of the coupling layer 2 in the thickness direction. The end surface of the shockwave head body 1 proximal to the coupling layer 2 is a third plane 13, with the second plane 24 aligned with the third plane 13. If the area of ​​the impacted object to be impacted is relatively large, the shockwave head body 1 and the coupling layer 2 can also be configured so that the second plane 24 and the third plane 13 are aligned. In this case, the force applied to the impacted object extends linearly within the object, allowing impact therapy to be performed on the interior of the object corresponding to the area aligned with the first plane 21. This provides highly targeted treatment, high treatment efficiency, and ensures contact stability between the shockwave head structure and the surface of the impacted object.

[0035] The coupling layer 2 has a different shape near the shockwave head body 1, resulting in different distributions of the impact force transmitted to the impacted body and different areas of impact. The shockwave head body 1 and coupling layer 2 can be selected adaptively based on the size of the impacted body to be treated.

[0036] The acoustic impedance of the shockwave head itself is high (typically around 30 Mrayl), while the acoustic impedance of the human body is very low (typically around 1 Mrayl). When mechanical wave energy propagates through different media, the large difference in acoustic impedance between these media can cause a significant amount of mechanical wave energy to be reflected back and unable to penetrate the interface between the two media. The shockwave head structure in this application reduces reflections by adding one or more transition layers (i.e., coupling layers within the shockwave head structure) between the human body and the shockwave head itself. This can increase the energy actually penetrating the human body, thereby improving the efficiency of shockwave therapy.

[0037] As shown in FIG4 , there are multiple coupling layers 2, which are distributed along the thickness direction of the coupling layers 2. One of the multiple coupling layers 2, which is away from the shock wave head body 1, is provided with a first flat surface 21. By providing multiple coupling layers 2, the number of coupling layers 2 can be selected based on the impact treatment depth and impact force of the impacted body.

[0038] In this embodiment, the number of coupling layers 2 is two, the two coupling layers 2 are the first coupling layer and the second coupling layer, the first coupling layer is distributed between the shock wave head body 1 and the second coupling layer, and the end surface of the second coupling layer away from the shock wave head body 1 is the first plane 21.

[0039] Adhesive is provided at the connection between the shock wave head body 1 and the coupling layer 2. Adhesive is also provided between any two adjacent coupling layers 2. This can further improve the connection reliability between the coupling layer 2 and the shock wave head body 1, as well as the connection reliability between any two adjacent coupling layers 2.

[0040] The coupling layer 2 is made of epoxy resin. As an alternative, the coupling layer 2 is made of silicone. As another alternative, the coupling layer 2 is made of thermoplastic polymer (Acrylonitrile Butadiene Styrene, ABS). As another alternative, the coupling layer 2 is made of thermoplastic elastomer (TPE). Epoxy resin, silicone, ABS, and TPE have different transmittances to impact force. It is understood that for coupling layers 2 of the same shape and thickness, the magnitude and depth of the impact force transmitted to the impacted body by coupling layers 2 made of different materials will vary.

[0041] The shape of one end of the coupling layer 2 near the shock wave head body 1 is different, so that the distribution of the impact force transmitted to the impacted body is different, and the impact force has different action areas; the thickness of the first protrusion (14) of the coupling layer 2, the depth of the second spherical groove 22 of the coupling layer 2, the material type of the coupling layer 2, and the thickness of the coupling layer 2 are different, so that the magnitude and depth of the impact force transmitted to the impacted body are different. Therefore, the corresponding shock wave head body 1 and coupling layer 2 can be selected according to the area of ​​the impacted body that needs to be subjected to shock treatment, the magnitude and depth of the impact force of the shock treatment.

[0042] In this embodiment, as shown in Figures 1-3, when the number of coupling layers 2 is one, the coupling layer 2 is made of epoxy resin, silicone, ABS or TPE, etc.; as shown in Figure 4, when the number of coupling layers 2 is two, the first coupling layer can be made of epoxy resin or ABS, etc., and the second coupling layer can be made of silicone or TPE, etc.

[0043] In this embodiment, the shock wave head body 1 is made of titanium alloy, which can further enhance the shock wave treatment effect of the shock wave head structure. Alternatively, the shock wave head body 1 can also be made of other types of metal materials.

[0044] The present application also provides a shock wave therapy device comprising a gun head and the aforementioned shock wave head structure, which is disposed at the output end of the gun head. This shock wave head structure effectively enhances the shock therapy effect on the impacted object, and has a simple structure, reduces the number of components, and lowers production costs.

Claims

1. A shock wave head structure, comprising: Shock wave head body (1); A coupling layer (2), the coupling layer (2) being arranged at the free end of the shock wave head body (1) and being integrally injection-molded at the free end of the shock wave head body (1); an end surface of the coupling layer (2) away from the shock wave head body (1) being a first plane (21); and the first plane (21) being arranged to fit with the surface of the impacted body.

2. The shock wave head structure according to claim 1, wherein: A first spherical groove (11) is concavely provided on the end surface of the shock wave head body (1) close to the coupling layer (2), and a first protrusion (14) is convexly provided on the coupling layer (2). The first protrusion (14) and the first plane (21) are spaced apart and distributed at both ends of the coupling layer (2) in the thickness direction, and the first protrusion (14) and the first spherical groove (11) are matched.

3. The shock wave head structure according to claim 1, wherein: A second protrusion (23) is convexly provided on the end surface of the shock wave head body (1) close to the coupling layer (2), and a second spherical groove (22) is concavely provided on the coupling layer (2). The second spherical groove (22) and the first plane (21) are spaced apart and distributed at both ends of the coupling layer (2) in the thickness direction, and the second protrusion (23) cooperates with the second spherical groove (22).

4. The shock wave head structure according to claim 1, wherein: The end surface of the coupling layer (2) close to the shock wave body (1) is a second plane (24), and the second plane (24) and the first plane (21) are distributed at two ends of the coupling layer (2) in the thickness direction at intervals. The end surface of the shock wave head body (1) close to the coupling layer (2) is a third plane (13), and the second plane (24) is in contact with the third plane (13).

5. The shock wave head structure according to any one of claims 1 to 4, wherein: The coupling layers (2) are multiple in number, the multiple coupling layers (2) are distributed along the thickness direction of the coupling layers (2), and one of the multiple coupling layers (2) that is far away from the shock wave head body (1) is provided with the first plane (21).

6. The shock wave head structure according to claim 5, wherein: The number of the coupling layers (2) is two, the two coupling layers (2) being a first coupling layer and a second coupling layer, the first coupling layer being distributed between the shock wave head body (1) and the second coupling layer, and the end surface of the second coupling layer away from the shock wave head body (1) being the first plane (21).

7. The shock wave head structure according to any one of claims 1 to 4, wherein: The coupling layer (2) is made of epoxy resin material.

8. The shock wave head structure according to any one of claims 1 to 4, wherein: The coupling layer (2) is made of silicone material.

9. The shock wave head structure according to any one of claims 1 to 4, wherein: The shock wave head body (1) is made of titanium alloy material.

10. A shock wave therapy device, comprising a gun head and the shock wave head structure according to any one of claims 1 to 9, wherein the shock wave head structure is arranged at the output end of the gun head.

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