A transmitter for generating electromagnetic shock waves

Abstract

The application relates to the technical field of electromagnetic devices and discloses an emitter for generating electromagnetic shock waves, which comprises a reflecting cup and a coil base; a bending part is arranged at the cup opening edge of the reflecting cup, the inner surface of the bending part is at a preset angle with the inner wall of the reflecting cup, the cup bottom of the reflecting cup is provided with a through hole, the coil base is penetrated into the inside of the reflecting cup from the cup bottom of the reflecting cup through the through hole, the coil base is cylindrical, an electromagnetic coil is arranged around the cylindrical surface of the coil base, and a diaphragm is arranged around the electromagnetic coil; wherein the electromagnetic coil is used for driving the diaphragm to vibrate to generate electromagnetic shock waves, the electromagnetic shock waves are reflected by the inner wall and the inner surface of the bending part, and then the electromagnetic shock waves are focused towards the cup opening of the reflecting cup; the bending part arranged at the edge of the reflecting cup can twice reflect the electromagnetic shock waves deviating from the design path, so that the gathering degree of the electromagnetic shock waves is higher.

Description

Technical Field

[0001] This invention relates to the technical field of electromagnetic devices, and in particular to a transmitter for generating electromagnetic shock waves. Background Technology

[0002] Currently, electromagnetic shock waves have been initially applied in the medical field. The focused shock waves produce a gentle mechanical impact on inflamed tissue, loosening the adhered tissue fibers, improving local blood circulation, accelerating the excretion of inflammatory metabolic waste, and creating conditions for tissue repair, thereby playing an auxiliary role in the treatment of inflammation.

[0003] The focusing degree of electromagnetic shock waves is closely related to their effect. Existing technologies (such as publication number: CN221712108U) use arc-shaped metal reflectors. After the shock wave is reflected, it scatters significantly at the edge of the reflector, making it difficult to focus the electromagnetic shock wave to the target position. As a result, the energy density is insufficient, leading to power waste.

[0004] Improving the focusing power of electromagnetic shock waves has become an urgent technical problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to improve the focusing degree of electromagnetic shock waves.

[0006] To address the aforementioned technical problems, this invention provides a transmitter for generating electromagnetic shock waves, comprising: a reflector cup, the reflector cup having a bent portion at its rim, the bent portion bending inward from the edge of the rim of the reflector cup, the inner surface of the bent portion forming a predetermined angle α with the inner wall of the reflector cup, and a through hole at the bottom of the reflector cup; a coil base, the coil base extending into the interior of the reflector cup through the through hole from the bottom of the reflector cup, the coil base being cylindrical, an electromagnetic coil surrounding the cylindrical surface of the coil base, and a diaphragm surrounding the electromagnetic coil; wherein, the electromagnetic coil is used to drive the diaphragm to vibrate and generate electromagnetic shock waves, the electromagnetic shock waves being reflected by the inner wall and the inner surface of the bent portion and then emitted upward toward the rim of the reflector cup.

[0007] In one embodiment, a soft rubber block is provided at the top of the bent portion, which is used to control the penetration depth of the electromagnetic shock wave.

[0008] In one embodiment, the bent portion is detachably connected to the soft rubber block.

[0009] In one embodiment, the soft rubber block is any one of silicone rubber, polyurethane elastomer, EPDM rubber, or medical-grade fluororubber.

[0010] In one embodiment, adhesive is injected between the cylindrical surface of the coil base and the diaphragm to fix the electromagnetic coil.

[0011] In one embodiment, an insulating film is provided between the cylindrical surface of the coil base and the electromagnetic coil, and adhesive is located between the insulating film and the diaphragm.

[0012] In one embodiment, the adhesive has a coefficient of thermal expansion that matches that of the electromagnetic coil.

[0013] In one embodiment, the electromagnetic coils are spaced from 0.5 mm to 0.5 mm apart.

[0014] In one embodiment, the preset angle α is within the range of degrees to degrees.

[0015] In one embodiment, the top of the diaphragm is lower than the bottom of the bend.

[0016] Compared with the prior art, the transmitter for generating electromagnetic shock waves according to an embodiment of the present invention has the following advantages: The transmitter of this invention has a bend at a preset angle at the edge of the reflector cup, which effectively suppresses the scattering effect of electromagnetic shock waves. This allows the shock waves that were originally scattered due to the uneven curvature of the reflector cup edge to be refocused on the target area instead of spreading to non-target areas, thereby significantly improving the treatment effect, reducing energy waste, and increasing the energy utilization rate of the transmitter.

[0017] Furthermore, the cylindrical coil substrate allows the electromagnetic coil and diaphragm to remain vertical. Compared to traditional coil shapes, this enables the formation of electromagnetic shock waves that are horizontally directed towards the inner wall, resulting in similar path lengths for each electromagnetic shock wave and better focusing.

[0018] This innovation solves the technical problem of the difficulty in accurately focusing electromagnetic shock waves at the edge of the curved reflector cup in existing technologies. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a transmitter for generating electromagnetic shock waves, as exemplarily shown in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the reflection of a bent portion of a transmitter used to generate electromagnetic shock waves, as exemplarily shown in an embodiment of the present invention.

[0021] Figure 3 This is a simulation diagram of a conventional transmitter, exemplarily shown in an embodiment of the present invention.

[0022] Figure 4 This is a simulation diagram of a transmitter for generating electromagnetic shock waves, as exemplarily shown in an embodiment of the present invention.

[0023] Figure 5 This is a focusing schematic diagram of a transmitter for generating electromagnetic shock waves, as exemplarily shown in an embodiment of the present invention.

[0024] Figure 6 This is a partial view A of a transmitter for generating electromagnetic shock waves, as exemplarily shown in an embodiment of the present invention.

[0025] Figure label: 1. Transmitter, 2. Electromagnetic shock wave, 11. Reflector cup, 12. Bending part, 13. Coil base, 14. Electromagnetic coil, 15. Diaphragm, 16. Soft rubber block, 17. Glue, 18. Insulating film, 111. Inner wall, 121. Inner surface, α. Preset angle. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0027] In the description of this invention, it should be understood that the terms "up / down / left / right" and "top" and "bottom" used to describe orientation are based on the perspective shown in the accompanying drawings. This description is exemplary and is not intended to limit the scope of the invention. Reversing the orientation also falls within the protection scope of this invention.

[0028] Currently, electromagnetic shockwave technology has been initially implemented in the medical field, demonstrating unique value, especially in the adjunctive treatment of soft tissue inflammation and joint inflammation. Its core treatment logic lies in precise physical intervention, using gentle and controllable shockwaves focused on the inflamed lesion.

[0029] On the one hand, this impact does not damage the surrounding healthy tissue, but can effectively loosen the tissue fibers that are stuck together due to long-term inflammatory response. On the other hand, mechanical stimulation can also activate the local vasodilation mechanism, promote blood circulation, deliver more oxygen and nutrients to the lesion, and accelerate the excretion of inflammatory metabolic waste, clearing obstacles for the repair of damaged tissue, and ultimately achieving the effect of relieving inflammatory symptoms and assisting in disease recovery.

[0030] The degree of focusing of the electromagnetic shock wave is the key to determining the efficiency and safety of this treatment process: the more precise the focusing, the more concentrated the energy is on the lesion, the more significant the treatment effect, and the less interference with surrounding tissues.

[0031] Existing technical solutions mainly use curved metal reflectors to construct focusing systems. While this design is low-cost and easy to mass-produce, it has drawbacks. Shock waves at the reflector's edge are difficult to focus precisely on the preset target area due to reflection path deviations, resulting in a significant reduction in energy density at the edges. For example... Figure 3 The simulation diagram shows that more energy is dissipated at the edges, and the intensity of the dissipation at the edges is generally between 196 and 200 decibels.

[0032] This not only prevents the effective treatment of inflamed tissue at the lesion's edge, creating a treatment blind spot, but also wastes energy and may even increase the risk of overstimulation of local tissues due to uneven energy distribution, thus limiting the clinical application of the technology. Therefore, optimizing the focusing structure and improving the overall focusing accuracy of electromagnetic shock waves have become the core issues that urgently need to be addressed to promote the application of this technology to more complex diseases and achieve more efficient treatment.

[0033] Based on this, such as Figure 1 As shown, a preferred embodiment of the present invention provides a transmitter 1 for generating an electromagnetic shock wave 2, comprising a reflector cup 11 and a coil base 13.

[0034] The cup mouth 112 of the reflector cup is provided with a bend, which bends inward from the edge of the cup mouth 112 of the reflector cup 11. The inner surface 121 of the bend 12 is at a preset angle α with the inner wall 111 of the reflector cup 11. The bottom 113 of the reflector cup 11 is provided with a through hole. The coil base 13 passes through the bottom 113 of the reflector cup 11 and enters the interior of the reflector cup 11 through the through hole. The coil base 13 is cylindrical. An electromagnetic coil 14 is provided around the cylindrical surface of the coil base 13. A diaphragm 15 is provided around the electromagnetic coil 14. The electromagnetic coil 14 is used to drive the diaphragm 15 to vibrate and generate electromagnetic shock wave 2. The electromagnetic shock wave 2 is reflected by the inner wall 111 and the inner surface 121 of the bend 12 and then emitted towards the top of the cup opening 112 of the reflector cup 11.

[0035] It is understood that when an electromagnetic coil is connected to a pulsed power supply, the frequency of the pulsed power supply determines the vibration frequency of the electromagnetic coil, which in turn affects the vibration frequency of the diaphragm. This application does not impose specific limitations on the pulsed power supply; conventional pulsed power supplies, whether separate or integrated, can be used, and all fall within the scope of protection of this application.

[0036] Combination Figure 2 As can be seen from the enlarged view, the bent part 12 set at the edge of the reflector cup 11 can reflect the electromagnetic shock wave 2 that deviates from the design path for a second time, so that the electromagnetic shock wave 2 is more concentrated.

[0037] like Figure 4 The figure shows a simulation diagram of the optimized structure. As can be seen from the figure, the scattered energy density of electromagnetic shock wave 2 is significantly reduced, and the energy intensity of the scattered electromagnetic shock wave 2 is generally between 192 and 196 dB, compared to... Figure 3 The simulation diagram of the existing structure shows a reduction of approximately 4 dB. According to the formula for power levels, a reduction of 4 dB can reduce power by about 60%. It can be seen that the present invention significantly reduces the dissipated energy power and improves the concentration.

[0038] Furthermore, the cylindrical coil substrate used in this invention provides crucial support for the path consistency of the electromagnetic shock wave 2. Traditional transmitters 1 often use irregular or flat coil substrates, which can easily cause the electromagnetic coil 14 and diaphragm 15 to tilt, causing the shock wave propagation direction to deviate from the horizontal inner wall 111, resulting in different shock wave lengths along different paths. This difference can cause shock wave phase disorder, ultimately leading to blurred focus and unstable treatment effects.

[0039] The cylindrical substrate, with its symmetrical and regular structure, can firmly fix the electromagnetic coil 14 and the diaphragm 15, ensuring that both remain vertical, thereby forming an electromagnetic shock wave 2 that is completely horizontal and directed towards the inner wall 111. This greatly reduces energy dispersion and phase shift caused by path differences, allowing all shock wave energy to converge synchronously at the target point. It is especially suitable for the treatment of deep soft tissue inflammation that requires extremely high focusing precision, enabling energy to act more accurately on deep lesions and reducing the problems of overtreatment of superficial lesions and undertreatment of deep lesions.

[0040] In this invention, a baffle can be installed at the mouth of the cup. The baffle has a low density, allowing electromagnetic shock waves to pass through while also preventing foreign objects from entering. This protects both the transmitting head and the skin, preventing direct contact between the vibrating components and the skin from causing damage.

[0041] In one embodiment of the present invention, such as Figure 5 As shown, a soft rubber block 16 is provided at the top of the bent part 12. The soft rubber block 16 is used to control the penetration depth of the electromagnetic shock wave 2.

[0042] Because electromagnetic shockwave 2 is invisible and intangible, it is difficult to control the working distance when handheld, resulting in poor treatment effects. However, with the addition of the soft rubber block 16, which contacts the skin and provides support, the working distance remains constant as long as the soft rubber block 16 remains in contact with the skin, effectively improving the precision of manual operation. The soft rubber block 16 is soft in texture and will not cause any foreign body sensation. Furthermore, by applying different pressures, the soft rubber block 16 can be deformed, allowing for fine-tuning and controllable treatment depth.

[0043] The soft rubber block used is soft in texture and has a low density, so it can easily pass through electromagnetic shock waves without affecting the transmission path of the electromagnetic shock waves.

[0044] Furthermore, in a further embodiment of the invention, the bent portion 12 is detachably connected to the soft rubber block 16. This detachable connection design allows the soft rubber block 16 to be replaced, facilitating repair and replacement should the soft rubber block 16 be damaged.

[0045] On the other hand, as shown in the figure, the sum of the subcutaneous focusing depth and the thickness of the soft rubber block 16 is exactly equal to the distance between the top of the bent part 12 and the focusing point. Since the focusing point will not change when the reflector cup 11 is fixed, the focusing depth can be changed by replacing the soft rubber block 16 with different thicknesses, that is, the working distance can be changed, so that the transmitter 1 in this invention can be applied to areas with different working depths, thereby improving the applicability of the transmitter 1 and enhancing its practicality.

[0046] In one embodiment, when the physical focal length of the transmitter 1 (based on the distance from the top of the bent portion 12 to the focal point) is 75 mm, if it is necessary to treat inflammation with a depth of 30 mm, it is necessary to add a soft rubber block 16 with a height of 40 mm for adjustment, so that the distance between the treatment area and the contact surface of the soft rubber block 16 is 30 mm.

[0047] For example, the soft rubber block 16 in this invention can be any one of silicone rubber, polyurethane elastomer, EPDM rubber or medical-grade fluororubber.

[0048] Silicone rubber is non-allergenic and non-cytotoxic, allowing for long-term direct contact with human skin or mucous membranes. It also exhibits low compression set, meaning it has good resilience and can maintain its thickness over a long period. Its smooth surface reduces frictional resistance when in contact with skin, minimizing skin abrasion caused by the movement of the transmitter during treatment.

[0049] Polyurethane elastomers can have their hardness adjusted through formulation. By changing the formulation of the soft rubber block 16, both soft contact and structural support can be achieved. Furthermore, polyurethane elastomers are resistant to common medical disinfectants, are unlikely to undergo chemical reactions, and avoid material degradation that could produce harmful substances.

[0050] Ethylene propylene diene monomer (EPDM) rubber is not prone to oxidation or embrittlement when exposed to air, light, or high temperatures for extended periods, making it suitable for long-term storage of spare parts for transmitter 1. Furthermore, it exhibits high deformation recovery under continuous pressure (such as the constant pressure when transmitter 1 is in contact with skin), maintaining its sealing performance over a long period.

[0051] Medical-grade fluororubber can withstand high temperatures and strong chemical corrosion, making it suitable for soft rubber blocks 16 in treatment protocols that require high-temperature sterilization.

[0052] In one embodiment of the present invention, such as Figure 6 As shown, glue 17 can be injected between the cylindrical surface of the coil base 13 and the diaphragm 15. The glue 17 is used to fix the electromagnetic coil 14 so that the electromagnetic coil 14 is evenly spaced.

[0053] The design of injecting glue 17 between the cylindrical surface of the coil base 13 and the diaphragm 15 utilizes the properties of glue 17 to firmly fix the electromagnetic coil 14, reducing the probability of deformation and loosening after vibration. Furthermore, the filling and shaping effect of glue 17 ensures that multiple sets of electromagnetic coils 14 are evenly spaced on the cylindrical surface.

[0054] The uniform spacing of the electromagnetic coils 14 directly determines that the electromagnetic shock waves 2 generated when the diaphragm 15 vibrates have the characteristic of uniform spacing. The shock waves excited by each coil on the diaphragm 15 will propagate to the reflector cup 11 at the same time interval and with the same energy density, thus avoiding the problem of local shock wave superposition or shock wave gaps that occur when the coils are not uniformly distributed in the traditional way.

[0055] When these uniformly spaced shock waves act on the reflector cup 11, the bending part 12 guides the scattered waves to focus, while the uniformly spaced shock waves can further reduce energy interference during propagation, so that the energy loss of each shock wave path remains consistent, and finally the shock waves focused on the target area form a therapeutic wave field with uniform energy density and stable action rhythm.

[0056] From a clinical application perspective, this uniformly spaced shockwave design ensures that every area of ​​the lesion receives the same intensity of treatment energy, reducing the situation where the energy is too strong in the center of the lesion and insufficient at the edge, thereby reducing treatment blind spots.

[0057] The synergistic design of the glue 17 for fixing and uniform spacing also extends the service life of the transmitter 1 and improves maintenance convenience. The stable fixing effect of the glue 17 prevents the electromagnetic coil 14 from shifting or loosening during long-term high-frequency vibration, ensuring that the coil spacing always remains uniform.

[0058] Furthermore, in one embodiment of the present invention, an insulating film 18 is provided between the cylindrical surface of the coil base 13 and the electromagnetic coil 14, and adhesive 17 is located between the insulating film 18 and the diaphragm 15.

[0059] After the introduction of the insulating film 18, in conjunction with the fixing effect of the glue 17, a non-insulated electromagnetic coil 14 can be used. That is, the electromagnetic coil 14 does not need to be coated with an insulating varnish layer, which can increase the wire diameter of the usable electromagnetic coil 14 and improve the power of the entire transmitter 1.

[0060] In another embodiment of the present invention, the insulating varnish layer of the electromagnetic coil 14 can be retained. The insulating film 18 is used to prevent short circuits through the coil substrate after the insulating varnish layer is worn away, and at the same time to prevent the glue 17 from overflowing after the temperature rises.

[0061] In one embodiment, the coefficient of thermal expansion of the adhesive 17 is matched with that of the electromagnetic coil 14. The electromagnetic coil 14 generates heat when energized, and the increased temperature may cause the material to expand. If the coefficient of thermal expansion of the adhesive 17 matches that of the coil, it can effectively counteract the thermal stress caused by temperature changes, preventing structural loosening, cracking, or detachment due to thermal expansion and contraction, thereby improving the stability and reliability of the equipment.

[0062] In addition, matching the coefficient of thermal expansion ensures that the volume expansion / contraction of the glue 17 is small when the temperature changes, thereby maintaining the tight fit between the electromagnetic coil 14 and the diaphragm 15, avoiding uneven vibration or waveform distortion caused by thermal stress, and maintaining the uniformity of the electromagnetic shock wave 2.

[0063] In one embodiment, the electromagnetic coils 14 are spaced apart at intervals of 0.03 mm to 0.2 mm.

[0064] By optimizing the spacing, energy loss in non-target areas is reduced, improving the energy utilization of transmitter 1 and lowering operating costs. The 0.03 mm to 0.2 mm interval is an exemplary embodiment considering overall power, effect, and cost.

[0065] In one embodiment, the preset angle α is in the range of 115 degrees to 125 degrees. The preset angle α focuses the scattered shock wave at the focal point, forming an obtuse angle of 115 degrees to 125 degrees with the tangent of the cross-sectional arc. Through curvature optimization, the scattering effect of the electromagnetic shock wave 2 is effectively suppressed.

[0066] It is understood that since the inner wall 111 of the reflector cup 11 is usually curved, the preset angle α in this invention refers to the angle between the inner surface 121 of the bent portion 12 and the tangent of the inner wall 111 of the reflector cup 11.

[0067] In one embodiment, the top of the diaphragm 15 is lower than the bottom of the bend 12. This lower position of the diaphragm 15 reduces the likelihood that the electromagnetic shock waves 2 generated by the diaphragm 15 will fail to reach the inner wall 111, thus reducing energy waste.

[0068] Meanwhile, the top of the diaphragm 15 is lower than the bottom of the bend 12, so the soft rubber block 16 on the bend 12 will not interfere with the vibration of the diaphragm 15. Therefore, it is unnecessary to design a clearance position on the soft rubber block 16. This invention provides a high-precision electromagnetic shock wave transmitter 1. Through an innovative design, the reflector cup 11 features an inwardly bent portion 12 at its rim, combined with a cylindrical coil base 13 to achieve uniform distribution of the electromagnetic coils 14, and integrates an adjustable-focus soft rubber block 16 structure. The transmitter 1 uses adhesive 17 with a matching coefficient of thermal expansion to fix the coils, supplemented by an optimized layout of an insulating film 18 and a diaphragm 15 with its top lower than the bottom of the bent portion 12, effectively solving the problem of energy dissipation at the edge of traditional reflectors.

[0069] In summary, in this embodiment of the invention, the diverse material design of the soft adhesive block 16 enhances the compatibility of the transmitter 1 with human tissue, reducing the risk of skin irritation during treatment. Secondly, the matching mechanism of the thermal expansion coefficients of the adhesive 17 and the electromagnetic coil 14 ensures the mechanical integrity of the device under external temperature fluctuations, effectively preventing performance degradation. Thirdly, the precise setting of the preset angle α (115 to 125 degrees) optimizes the focusing effect of the electromagnetic shock wave 2, allowing energy to be more concentrated on the target area. These technical features are interdependent and mutually reinforcing, jointly solving the common problems of traditional electromagnetic shock wave 2 transmitters 1 in terms of focusing accuracy, thermal stability, and adaptability.

[0070] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A transmitter for generating electromagnetic shock waves, characterized in that, include: A reflective cup (11) has a bent portion at its mouth (112). The bent portion bends inward from the edge of the mouth (112) of the reflective cup (11). The inner surface (121) of the bent portion (12) forms a preset angle (α) with the inner wall (111) of the reflective cup (11). The bottom (113) of the reflective cup (11) has a through hole. The coil base (13) is inserted into the interior of the reflector cup (11) through the through hole from the bottom (113) of the reflector cup (11). The coil base (13) is cylindrical. An electromagnetic coil (14) is provided around the cylindrical surface of the coil base (13). A diaphragm (15) is provided around the electromagnetic coil (14). The electromagnetic coil (14) is used to drive the diaphragm (15) to vibrate and generate an electromagnetic shock wave (2). The electromagnetic shock wave (2) is reflected by the inner wall (111) and the inner surface (121) of the bend (12) and then emitted towards the top of the cup mouth (112) of the reflector cup (11).

2. The transmitter according to claim 1, characterized in that, The top of the bent portion (12) is provided with a soft rubber block (16), which is used to control the penetration depth of the electromagnetic shock wave (2).

3. The transmitter according to claim 2, characterized in that, The bent portion (12) is detachably connected to the soft rubber block (16).

4. The transmitter according to claim 2, characterized in that, The soft rubber block (16) is any one of silicone rubber, polyurethane elastomer, EPDM rubber or medical grade fluororubber.

5. The transmitter according to claim 1, characterized in that, Adhesive (17) is injected between the cylindrical surface of the coil base (13) and the diaphragm (15), and the adhesive (17) is used to fix the electromagnetic coil (14).

6. The transmitter according to claim 5, characterized in that, An insulating film (18) is provided between the cylindrical surface of the coil base (13) and the electromagnetic coil (14), and the glue (17) is located between the insulating film (18) and the diaphragm (15).

7. The transmitter according to claim 5, characterized in that, The adhesive (17) has a coefficient of thermal expansion that matches that of the electromagnetic coil (14).

8. The transmitter according to claim 5, characterized in that, The electromagnetic coils (14) are spaced at intervals of 0.03 mm to 0.2 mm.

9. The transmitter according to claim 1, characterized in that, The preset angle (α) is in the range of 115 degrees to 125 degrees.

10. The transmitter according to claim 1, characterized in that, The top of the diaphragm (15) is lower than the bottom of the bend (12).

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