Extracorporeal shock wave therapy apparatus, telescopic treatment head

Abstract

The utility model discloses a kind of extracorporeal shock wave therapy apparatus, telescopic treatment head, it is related to medical instrument technical field, including upper cover, lower cover and inner core, the upper cover is connected with the lower cover and forms cavity in middle, the upper end of the upper cover has through-hole communicated with the cavity, the inner core is built into the cavity, and the upper treatment part of the inner core is from the through-hole, the inner core is axially moved with the cavity cooperation, spring is sleeved on the inner core, the spring is between the inner core middle portion and the lower cover, the lower end of the lower cover has connecting hole communicated with the cavity, treatment handle is connected with the connecting hole, the treatment handle includes inner tube and impact block that can reciprocate in the inner tube, the impact block reciprocating motion impacts the inner core. Telescopic treatment head reduces the impact vibration to operator, increases the protection to operator.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an extracorporeal shock wave therapy device and a retractable treatment head. Background Technology

[0002] Extracorporeal shock wave therapy (ESWT) is a mechanical wave that combines acoustic, optical, and mechanical properties. ESWT is a physical method that uses external shock waves to treat diseases. It primarily utilizes mechanical, cavitation, and thermal effects. The stimulation of external shock waves promotes the regeneration of vascular endothelial cells, thereby achieving anti-inflammatory and analgesic effects, releasing adhesions, and improving local microcirculation. ESWT has many advantages, including being non-invasive, causing minimal tissue damage, providing significant pain relief, having few complications, a short treatment cycle, low treatment risk, a high cure rate, and low cost. It has become a non-surgical treatment method used for a variety of diseases.

[0003] Extracorporeal shock wave therapy (ESWB) devices convert pneumatic pulse sound waves generated by a compressor into precise ballistic shock waves. These shock waves are conducted through a physical medium (such as air or liquid) and act on the human body, producing biological effects. It is a high-energy pressure wave generated by the sudden release of energy, characterized by instantaneous pressure increase and high-speed conduction. Shock wave energy is the "force" or "power" carried by the shock wave. It is calculated by integrating the pressure of the shock wave at a specific location and time, and is a cumulative effect.

[0004] The principle behind pneumatic ballistic shockwave generation is that an air compressor compresses air, which, controlled by the main unit, reciprocates to push a striking block in the treatment handle. Based on Newton's law of motion, the striking block then impacts the treatment head, which contacts the patient's treatment area, generating a shockwave. When the shockwave encounters human tissue, it applies instantaneous pressure, compressing the tissue. This compression promotes blood circulation, helping the tissue absorb more nutrients and oxygen, and can loosen adhesions and clear blockages in tissues where pain is widespread. Key advantages include no energy focal point, a wide wave propagation range, flexible treatment head movement during treatment, and better performance on soft tissues.

[0005] The existing treatment head lacks a cushioning structure, and the vibration generated by the impact block colliding with the treatment head will act on the operator's hand, which can cause damage to the operator's wrist with long-term use. In addition, the energy output of the existing treatment head is relatively fixed, and the energy intensity cannot be adjusted during treatment.

[0006] In summary, how to effectively solve the problems of existing treatment heads lacking a buffer structure and causing significant impact and vibration to operators is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a retractable treatment head that reduces the impact and vibration on the operator and increases the protection of the operator. Another purpose of this invention is to provide an extracorporeal shock wave therapy device including the above-mentioned retractable treatment head, which has the same beneficial effects as the retractable treatment head.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A retractable treatment head for an extracorporeal shock wave therapy device includes an upper cover, a lower cover, and an inner core. The upper cover and the lower cover are connected and form a cavity in the middle. The upper end of the upper cover has a through hole communicating with the cavity. The inner core is built into the cavity, and the upper treatment part of the inner core extends out from the through hole. The inner core and the cavity are axially movable. A spring is fitted on the inner core, and the spring is located between the middle of the inner core and the lower cover. The lower end of the lower cover has a connection hole communicating with the cavity. A treatment handle is connected to the connection hole. The treatment handle includes an inner tube and an impact block that can reciprocate within the inner tube. The reciprocating motion of the impact block impacts the inner core.

[0010] Preferably, the lower end of the inner core has a sleeve section with a reduced diameter, the sleeve section is inserted into the inner tube and can move axially within the inner tube, the stepped surface of the sleeve section is spaced from the end face of the inner tube, and the insertion depth of the sleeve section into the inner tube is adjustable.

[0011] Preferably, the inner core sidewall is provided with an upper stop block, the lower cover is provided with a lower stop block, and the upper and lower ends of the spring abut against the upper stop block and the lower stop block, respectively.

[0012] Preferably, the lower cover is provided with a lower limiting plate, the lower limiting plate is provided with a limiting hole coaxial with the through hole, the lower end of the inner core is inserted into the limiting hole, the lower end of the spring abuts against the lower limiting plate, the middle part of the inner core is provided with an upper limiting plate, the diameter of the upper limiting plate is larger than the diameter of the through hole, and the upper end of the spring abuts against the upper limiting plate.

[0013] Preferably, the upper part of the lower limiting plate has an annular groove, and the lower end of the spring extends into the annular groove and abuts against the bottom surface of the annular groove.

[0014] Preferably, a first buffer ring is provided on the upper limit plate, the first buffer ring being disposed between the upper limit plate and the upper cover, and a second buffer ring is provided on the stepped surface of the fitting segment, the second buffer ring being disposed between the stepped surface of the fitting segment and the end face of the inner tube.

[0015] Preferably, the inner wall of the upper cover is provided with a limiting groove along the axial direction of the inner core, and the side wall of the upper positioning plate is provided with a limiting block that cooperates with the limiting groove, and the limiting groove and the limiting block are movablely engaged.

[0016] Preferably, the limiting groove includes multiple vertical grooves, the length of which is greater than the height of the limiting block. The multiple vertical grooves have different heights in the axial direction and form a set angle in the circumferential direction. Adjacent vertical grooves are connected by a spiral groove, and the limiting block is driven to move along the spiral groove so that the limiting block switches between adjacent vertical grooves.

[0017] Preferably, the end of the limiting block is provided with a ball bearing, and the limiting groove is in rolling engagement with the ball bearing.

[0018] This utility model also provides an extracorporeal shock wave therapy device, including a treatment handle and a retractable treatment head mounted on the treatment handle, wherein the retractable treatment head is specifically the retractable treatment head described in any of the above-mentioned embodiments.

[0019] The beneficial effects of this utility model are as follows: the retractable treatment head provided by this utility model has an upper cover and a lower cover tightly connected to form an integral structure with a cavity in the middle. The inner core is installed in the cavity formed by the upper and lower covers. The upper treatment part of the inner core extends from the through hole of the upper cover to contact the treatment area. The inner core and the cavity are axially movable, allowing the inner core to move up and down within the cavity. A spring is installed between the middle of the inner core and the lower cover. When the inner core moves within the cavity, the spring provides elastic support, serving as a buffer and a restoring function.

[0020] During operation, the treatment handle uses compressed air to propel the impact block reciprocating within the inner tube, generating mechanical impact energy. The impact block reciprocates against the inner core, transmitting shockwave energy. The top of the inner core contacts the skin, delivering the shockwave energy to the painful area for treatment.

[0021] During use, the handheld treatment handle is pressed against the skin or the top of the inner core is pressed directly. The inner core shifts, causing the spring to compress and move downwards. The reaction force generated by the impact block striking the inner core is buffered by the compressed spring, reducing vibration to the operator's hand. After releasing, the spring returns to its original position, and the inner core resets.

[0022] The retractable treatment head provided by this invention is retractable, allowing adjustment of the treatment depth according to treatment needs. Simultaneously, a compression spring provides rebound cushioning, effectively buffering vibrations generated by impacts on the treatment handle. This buffers the energy of impacts acting on the operator's hands during use, increasing operator protection.

[0023] This utility model also provides an extracorporeal shock wave therapy device, including a treatment handle and a retractable treatment head mounted on the treatment handle, wherein the retractable treatment head is any of the aforementioned retractable treatment heads. Since the aforementioned retractable treatment head has the above-mentioned technical effects, the extracorporeal shock wave therapy device having this retractable treatment head should also have the corresponding technical effects. Attached Figure Description

[0024] 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the retractable treatment head provided in a specific embodiment of the present invention.

[0026] Figure 2 for Figure 1 A sectional view;

[0027] Figure 3 This is a schematic diagram showing the connection between the retractable treatment head and the treatment handle.

[0028] Figure 4 This is a schematic diagram of the retractable treatment head provided in another specific embodiment of the present invention.

[0029] Figure 5 for Figure 4 Enlarged view of the middle limit block and the limit groove.

[0030] Figure label:

[0031] 1-Inner core; 2-Upper cover; 3-Spring; 4-Lower cover; 5-First buffer ring; 6-O-ring seal; 7-Second buffer ring; 8-Treatment handle; 9-Inner tube; 10-Impact block; 11-Handle connector; 12-Limiting block; 13-Limiting groove. Detailed Implementation

[0032] The core of this utility model is to provide a retractable treatment head that buffers the energy of impact on the operator's hand during use, thereby increasing the protection of the operator. Another core aspect of this utility model is to provide an extracorporeal shock wave therapy device that includes the aforementioned retractable treatment head, which has the same beneficial effects as the retractable treatment head.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please refer to Figures 1 to 5 , Figure 1 This is a schematic diagram of the retractable treatment head provided in a specific embodiment of the present invention. Figure 2 for Figure 1 A sectional view; Figure 3 This is a schematic diagram showing the connection between the retractable treatment head and the treatment handle. Figure 4 This is a schematic diagram of the retractable treatment head provided in another specific embodiment of the present invention. Figure 5 for Figure 4 Enlarged view of the middle limit block and the limit groove.

[0035] In one specific embodiment, the retractable treatment head provided by this utility model is used in an extracorporeal shock wave therapy device, including an upper cover 2, a lower cover 4, and an inner core 1. The upper cover 2 and the lower cover 4 are connected and form a cavity in the middle. The upper end of the upper cover 2 has a through hole communicating with the cavity. The inner core 1 is built into the cavity, and the upper treatment part of the inner core 1 extends out from the through hole. The inner core 1 moves axially with the cavity. A spring 3 is fitted on the inner core 1. The spring 3 is located between the middle of the inner core 1 and the lower cover 4. The lower end of the lower cover 4 has a connection hole communicating with the cavity. The treatment handle 8 is connected to the connection hole. The treatment handle 8 includes an inner tube 9 and an impact block 10 that can reciprocate within the inner tube 9. The impact block 10 reciprocates to impact the inner core 1.

[0036] In the above structure, the upper cover 2 and the lower cover 4 are tightly connected to form a single unit with a cavity in the middle. The connection between the upper cover 2 and the lower cover 4 can be achieved through threads, snaps, or other mechanical connections to ensure the stability of the treatment head.

[0037] The inner core 1 is installed within the cavity formed by the upper cover 2 and the lower cover 4. The upper treatment portion of the inner core 1 extends from the through hole in the upper cover 2 to contact the treatment site. The inner core 1 and the cavity are axially movable, allowing the inner core 1 to move up and down within the cavity.

[0038] Spring 3 is installed between the middle of inner core 1 and lower cover 4. When inner core 1 moves within the cavity, spring 3 provides elastic support, serving as a buffer and a restoring function.

[0039] The handle connector 11 of the treatment handle 8 is connected to the connection hole of the lower cover 4. This connection may be achieved through a threaded connection or other mechanical connection method to ensure a secure connection between the treatment handle 8 and the treatment head. The treatment handle 8 is a common handle as described above, including an inner tube 9 and an impact block 10 that can reciprocate within the inner tube 9. The gas passage of the treatment handle 8 is sealed to the retractable treatment head by an O-ring 6 to prevent compressed air leakage. Specifically, the O-ring can be located at the connection between the lower cover 4 and the inner core 1, which is convenient to install and provides a good sealing effect.

[0040] During operation, the treatment handle 8 uses compressed air to drive the impact block 10 to reciprocate within the inner tube 9, generating mechanical impact energy. The impact block 10 reciprocates to impact the inner core 1, achieving the transmission of shock wave energy. The top of the inner core 1 contacts the human skin, transmitting the shock wave energy generated by the impact to the painful area for treatment.

[0041] During use, the handheld treatment handle 8 is pressed against the skin or the top of the inner core 1 is pressed directly. The inner core 1 is displaced, causing the spring 3 to compress and move downwards. The reaction force generated by the impact block 10 hitting the inner core 1 is buffered by the compressed spring 3, reducing vibration to the operator's hand. After releasing, the spring 3 rebounds, and the inner core 1 returns to its original position.

[0042] The retractable treatment head provided by this invention is retractable, allowing adjustment of the treatment depth according to treatment needs. Simultaneously, a compression spring 3 provides rebound cushioning, which buffers the vibrations generated by impacts on the treatment handle 8. This buffers the energy of impacts acting on the operator's hands during use, increasing operator protection.

[0043] Based on the above specific embodiments, the lower end of the inner core 1 has a sleeve section with a reduced diameter. The sleeve section is inserted into the inner tube 9 and can move axially within the inner tube 9. There is a gap between the stepped surface of the sleeve section and the end face of the inner tube 9. The insertion depth of the sleeve section into the inner tube 9 is adjustable.

[0044] In one specific embodiment, the lower end of the inner core 1 has a reduced-diameter sleeve section, which is inserted into the inner tube 9 of the treatment handle 8 and can move axially within the inner tube 9. The inner core 1 moves up and down within the inner tube 9, thereby realizing the telescopic function of the treatment head. A certain gap is maintained between the stepped surface of the sleeve section and the end face of the inner tube 9, so that the range of movement of the inner core 1 can be adjusted, thereby realizing the adjustable telescopic depth of the treatment head. During use, pressing the top of the inner core 1 changes the length of the bottom of the inner core 1 entering the treatment handle 8, and the stroke of the impact block 10 in the inner tube 9 changes, thus changing the energy generated by the impact, corresponding to different energies. It is possible to flexibly adjust the telescopic depth of the treatment head and adjust the output energy intensity according to different treatment needs, so as to adapt to different parts and different degrees of treatment, improving the targeting and effectiveness of the treatment.

[0045] At the same time, regardless of the length of the inserted segment into the inner tube 9, it is always connected inside the inner tube 9, and the inner tube 9 has a limiting effect on the axial movement of the inner core 1.

[0046] Preferably, the treatment section has a telescopic scale, which can display the telescopic amount of the inner core 1 according to the scale value on the top of the inner core 1. Pressing the inner core 1 can be used to display the telescopic amount, and pressing the top of the inner core 1 and changing the length of the inner tube 9 inserted at the bottom of the inner core 1 can adjust the intensity of the shock wave energy.

[0047] Based on the above specific embodiments, the inner core 1 has an upper stop block on its side wall, the lower cover 4 has a lower stop block, and the upper and lower ends of the spring 3 abut against the upper and lower stop blocks respectively.

[0048] In one specific embodiment, the lower end of the inner core 1 is inserted into the inner tube 9 and can move axially. The upper stop and the lower stop are located in the side wall of the inner core 1 and the lower cover 4, respectively. The gap between the upper stop and the lower stop limits the range of movement of the inner core 1, preventing the inner core 1 from excessively stretching and contracting, thereby ensuring that the treatment head can stably stretch and contract within a certain range, and avoiding damage to the equipment or poor treatment effect due to excessive movement of the inner core 1.

[0049] The upper and lower ends of the compression spring 3 abut against the upper and lower stops respectively. The upper and lower stops provide stable support points for the spring 3, ensuring that the spring 3 can properly perform its buffering and restoring functions. When the inner core 1 is pressed, the compression spring 3 is compressed. When the impact block 10 strikes the inner core 1, the spring 3 rebounds slightly under force, absorbing the vibration generated by the impact on the handle.

[0050] Based on the above specific embodiments, a lower limit plate is provided inside the lower cover 4, and the lower end of the inner core 1 is inserted into the limit hole, which limits the extreme position of the inner core 1 moving downward and prevents the inner core 1 from moving too downward and causing damage to the equipment.

[0051] The inner core 1 has an upper limit plate in the middle. The diameter of the upper limit plate is larger than the diameter of the through hole. When the inner core 1 moves upward, the upper limit plate will contact the end face of the through hole of the upper cover 2, thereby limiting the upper limit position of the inner core 1 and preventing the inner core 1 from moving too high and causing damage to the equipment.

[0052] The lower end of spring 3 abuts against the lower limit plate, and the upper end of spring 3 abuts against the upper limit plate. The lower limit plate provides a stable support point for the lower end of the compression spring 3, and the upper limit plate provides a stable support point for the upper end of the compression spring 3. The lower and upper limit plates work together to ensure that spring 3 can properly perform its buffering and restoring functions. When the inner core 1 is pressed, the compression spring 3 is compressed. When the impact block 10 strikes the inner core 1, spring 3 rebounds slightly under force, absorbing the vibration generated by the impact on the handle.

[0053] When there is no impact force, the elastic force of the spring 3 will keep the inner core 1 in a certain initial position, ensuring that the treatment head is in a suitable position when not in use, making it easy to operate and use.

[0054] The limiting hole and the through hole on the lower limit plate are coaxial. The coaxial design ensures the coaxiality of the inner core 1 during movement, preventing the inner core 1 from shifting or tilting during movement. This ensures that the shock wave can be transmitted to the treatment site in the correct direction, improving the accuracy and effectiveness of the treatment.

[0055] Based on the above specific embodiments, the upper part of the lower limit plate has an annular groove, and the lower end of the spring 3 extends into the annular groove and abuts against the bottom surface of the annular groove.

[0056] In one specific embodiment, the upper part of the lower limiting plate is designed with an annular groove, which is typically circular or ring-shaped, and its inner diameter matches the outer diameter of the spring 3. The lower end of the spring 3 can stably extend into the annular groove and make close contact with the bottom surface of the groove. The annular groove provides a stable mounting position for the lower end of the spring 3, ensuring that the lower end of the spring 3 remains stable during compression and reset, without shifting or shaking, thereby improving the stability and reliability of the spring 3; the annular groove restricts the lateral movement of the lower end of the spring 3, preventing the spring 3 from shifting laterally when subjected to impact, ensuring that the spring 3 always works axially, and improving the cushioning effect; the annular groove allows the lower end of the spring 3 to make uniform contact with the bottom surface of the annular groove, thereby providing a more uniform cushioning force during rebound and reducing the impact of the impact force on the patient.

[0057] Based on the above specific embodiments, a first buffer ring 5 is provided on the upper limit plate, and the first buffer ring 5 is located between the upper limit plate and the upper cover 2. A second buffer ring 7 is provided on the stepped surface of the sleeve section, and the second buffer ring 7 is located between the stepped surface of the sleeve section and the end face of the inner tube 9.

[0058] In one specific embodiment, the first buffer ring 5 is installed above the upper limit plate, located between the upper limit plate and the upper cover 2. When the inner core 1 moves upward due to the impact of the impact block 10, the first buffer ring 5 can absorb and buffer the impact force, reducing the impact of the impact force on the upper cover 2.

[0059] The second buffer ring 7 is installed on the stepped surface of the sleeve section, located between the stepped surface of the sleeve section and the end face of the inner tube 9. When the inner core 1 moves axially within the inner tube 9, the second buffer ring 7 can absorb and buffer the impact force, reducing the impact of the inner core 1 on the handle joint 11.

[0060] By buffering impact and reducing vibration, it ensures that the shock wave can be accurately delivered to the treatment site, improving the treatment effect; it can also reduce the impact on the patient's tissues during treatment, improving the safety and comfort of the treatment.

[0061] Based on the above specific embodiments, the inner wall of the upper cover 2 is provided with a limiting groove 13 along the axial direction of the inner core 1, and the side wall of the upper positioning plate is provided with a limiting block 12 that cooperates with the limiting groove 13. The limiting groove 13 and the limiting block 12 move and cooperate.

[0062] In one specific embodiment, the inner wall of the upper cover 2 is provided with a limiting groove 13 along the axial direction of the inner core 1, and the side wall of the upper positioning plate is provided with a limiting block 12 that cooperates with the limiting groove 13. The shape and size of the limiting block 12 match the limiting groove 13, so that the limiting block 12 can move axially within the limiting groove 13.

[0063] The cooperation between the limiting groove 13 and the limiting block 12 restricts the range of movement of the inner core 1 in the axial direction, ensuring that the inner core 1 can only move along the axial direction without deviation or shaking. It also prevents the inner core 1 from rotating during axial movement, ensuring that the inner core 1 always maintains the correct direction and position, improving the stability and accuracy of the movement of the inner core 1, thereby ensuring that the shock wave can be accurately transmitted to the treatment site.

[0064] Based on the above specific embodiments, the limiting groove 13 includes multiple vertical grooves. The length of the vertical grooves is greater than the height of the limiting block 12. The multiple vertical grooves have different heights in the axial direction and form a set angle in the circumferential direction. Adjacent vertical grooves are connected by a spiral groove. The limiting block 12 is driven to move along the spiral groove so that the limiting block 12 can switch between adjacent vertical grooves.

[0065] In one specific embodiment, the inner wall of the upper cover 2 is provided with multiple vertical grooves, and the side wall of the upper limit plate is provided with a limiting block 12 that cooperates with the vertical grooves. The limiting block 12 can move axially within the vertical grooves. The vertical grooves have different heights in the axial direction, and the length of the vertical grooves is greater than the height of the limiting block 12. The vertical grooves limit the range of movement of the inner core 1 in the axial direction, ensuring that the inner core 1 can only move within the range allowed by the vertical grooves, thereby improving the stability and accuracy of the movement of the inner core 1.

[0066] The vertical grooves are distributed at a predetermined angle in the circumferential direction, and adjacent vertical grooves are connected by spiral grooves. The spiral grooves allow the limiting block 12 to move along them, thus switching between adjacent vertical grooves. This switching changes the extension length of the inner core 1, enabling depth adjustment of the treatment head to adapt to different treatment needs. The spiral groove design allows the limiting block 12 to move within the spiral groove through both fine-tuning with small rotations and rapid switching to adjacent vertical grooves with larger rotations, meeting diverse treatment requirements.

[0067] In the above embodiment, the spiral groove connects adjacent vertical grooves. By driving the limiting block 12 to move along the spiral groove, the limiting block 12 can be switched from one vertical groove to another. This switching can change the extension length of the inner core 1, thereby achieving depth adjustment of the treatment head to adapt to different treatment needs. The spiral shape of the spiral groove allows the limiting block 12 to move smoothly during the switching process, thereby achieving precise control of the extension length of the inner core 1 and ensuring that the treatment head can accurately contact the treatment site.

[0068] Based on the above specific embodiments, the end of the limiting block 12 is provided with a ball, and the limiting groove 13 is in rolling cooperation with the ball.

[0069] In one specific embodiment, a ball bearing is mounted at the end of the limiting block 12. The diameter of the ball bearing is slightly smaller than the width of the limiting groove 13, allowing the ball bearing to roll freely within the limiting groove 13. The shape and size of the limiting groove 13 match the ball bearing, ensuring that the ball bearing does not deviate or get stuck when rolling within the limiting groove 13.

[0070] The rolling engagement of the ball bearings with the limiting groove 13 reduces friction between the limiting block 12 and the limiting groove 13, making the inner core 1 move more smoothly in the axial direction and improving the stability and reliability of the device. The rolling engagement of the ball bearings makes the movement of the limiting block 12 within the limiting groove 13 more precise and flexible, thereby improving the accuracy and speed of adjustment of the extension length of the inner core 1, ensuring that the treatment head can accurately contact the treatment site and meet different treatment needs.

[0071] Based on the retractable treatment head provided in the above embodiments, this utility model also provides an extracorporeal shock wave therapy device. The extracorporeal shock wave therapy device includes a treatment handle 8 and a retractable treatment head mounted on the treatment handle 8, wherein the retractable treatment head is any one of the retractable treatment heads described in the above embodiments. Since this extracorporeal shock wave therapy device uses the retractable treatment head described in the above embodiments, the beneficial effects of this extracorporeal shock wave therapy device are explained in the above embodiments. The structures of other parts of this extracorporeal shock wave therapy device are described in the prior art and will not be repeated here.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The extracorporeal shock wave therapy device and retractable treatment head provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, this utility model is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A retractable treatment head for use in an extracorporeal shock wave therapy device, characterized in that, The device includes an upper cover (2), a lower cover (4), and an inner core (1). The upper cover (2) and the lower cover (4) are connected and form a cavity in the middle. The upper end of the upper cover (2) has a through hole communicating with the cavity. The inner core (1) is built into the cavity, and the upper treatment part of the inner core (1) extends out from the through hole. The inner core (1) moves axially with the cavity. A spring (3) is fitted on the inner core (1). The spring (3) is located between the middle of the inner core (1) and the lower cover (4). The lower end of the lower cover (4) has a connection hole communicating with the cavity. A treatment handle (8) is connected to the connection hole. The treatment handle (8) includes an inner tube (9) and an impact block (10) that can reciprocate within the inner tube (9). The impact block (10) reciprocates and impacts the inner core (1).

2. The retractable treatment head according to claim 1, characterized in that, The lower end of the inner core (1) has a sleeve section with a reduced diameter. The sleeve section is inserted into the inner tube (9) and can move axially within the inner tube (9). There is a gap between the stepped surface of the sleeve section and the end face of the inner tube (9). The depth of the sleeve section inserted into the inner tube (9) is adjustable.

3. The retractable treatment head according to claim 2, characterized in that, The inner core (1) has an upper stop block on its side wall, and the lower cover (4) has a lower stop block inside. The upper and lower ends of the spring (3) abut against the upper stop block and the lower stop block, respectively.

4. The retractable treatment head according to claim 2, characterized in that, The lower cover (4) is provided with a lower limiting plate, and the lower limiting plate is provided with a limiting hole coaxial with the through hole. The lower end of the inner core (1) is inserted into the limiting hole, and the lower end of the spring (3) abuts against the lower limiting plate. The middle part of the inner core (1) is provided with an upper limiting plate, the diameter of which is larger than the diameter of the through hole, and the upper end of the spring (3) abuts against the upper limiting plate.

5. The retractable treatment head according to claim 4, characterized in that, The upper part of the lower limiting plate has an annular groove, and the lower end of the spring (3) extends into the annular groove and abuts against the bottom surface of the annular groove.

6. The retractable treatment head according to claim 4, characterized in that, The upper limit plate is provided with a first buffer ring (5), which is located between the upper limit plate and the upper cover (2). The stepped surface of the sleeve section is provided with a second buffer ring (7), which is located between the stepped surface of the sleeve section and the end face of the inner tube (9).

7. The retractable treatment head according to claim 4, characterized in that, The inner wall of the upper cover (2) is provided with a limiting groove (13) along the axial direction of the inner core (1), and the side wall of the upper limit plate is provided with a limiting block (12) that cooperates with the limiting groove (13). The limiting groove (13) and the limiting block (12) move and cooperate.

8. The retractable treatment head according to claim 7, characterized in that, The limiting groove (13) includes multiple vertical grooves. The length of the vertical groove is greater than the height of the limiting block (12). The multiple vertical grooves have different heights in the axial direction and form a set angle in the circumferential direction. Adjacent vertical grooves are connected by a spiral groove. The limiting block (12) is driven to move along the spiral groove so that the limiting block (12) can switch between adjacent vertical grooves.

9. The retractable treatment head according to claim 7, characterized in that, The end of the limiting block (12) is provided with a ball, and the limiting groove (13) is in rolling cooperation with the ball.

10. An extracorporeal shock wave therapy device, comprising a treatment handle (8) and a retractable treatment head mounted on the treatment handle (8), characterized in that, The retractable treatment head is specifically the retractable treatment head according to any one of claims 1 to 9.

Images