Postoperative ultrasonic therapeutic apparatus

Abstract

The invention, which relates to the technical field of ultrasonic treatment, discloses a postoperative ultrasonic therapeutic apparatus comprising balls which are arranged at the bottom end of an ultrasonic sound head in an equal-angle rotation manner and are used for sensing the friction force condition and pressing for discharging. The special-shaped grooves are formed in the bottom end of the ultrasonic sound head at equal angles and are used for temporarily storing a coupling agent; the material storage pipes are fixed in the ultrasonic sound head at equal angles and are used for storing a coupling agent; the oil storage pipes are communicated with the two sides of the material storage pipe and are used for storing oil; the piston rod is movably inserted into the oil storage pipe and is stressed to move upwards to push oil; and the push rod is movably inserted into the material storage pipe and is stressed to move downwards to push discharging. According to the device, the friction force generated when medical staff massage the abdomen of a patient through the sound head is ingeniously combined, whether the amount of a coupling agent on the abdomen of the patient is sufficient or dry or not is sensed, the friction force borne by the ultrasonic sound head is increased when the amount of the coupling agent is insufficient, and when the medical staff feels that the sound head is pressed, a ball in the sound head is pressed and retracts to enable the coupling agent to flow out; therefore, the coupling agent is supplemented.

Description

Technical Field

[0001] This invention relates to the field of ultrasound therapy technology, specifically to a postoperative ultrasound therapy device. Background Technology

[0002] Many surgeries require pre-operative fasting, which can affect gastrointestinal motility. Furthermore, the anesthetic drugs used during surgery can temporarily inhibit intestinal motility, leading to temporary "paralysis" of the intestines. Post-operative pain and reduced activity can also slow down intestinal motility, requiring assistance to expel gas. Doctors generally advise patients to get out of bed and walk around to stimulate the recovery of intestinal peristalsis. However, some post-operative patients have difficulty getting out of bed and need to use ultrasound therapy to help them expel gas.

[0003] Ultrasound therapy devices mainly utilize the mechanical and thermal effects of ultrasound to stimulate gastrointestinal smooth muscle cells and increase blood circulation, enhance their contraction activity and promote gastrointestinal motility, thereby facilitating gas expulsion. To ensure that ultrasound energy can be efficiently transmitted to the human body, and to lubricate and protect the patient's skin and the ultrasound device, a coupling agent needs to be applied to the patient's abdomen. The role of the coupling agent is to remove air between the sound head and the skin. During operation, the coupling agent is generally applied to the patient's abdomen by medical staff.

[0004] However, the following problems exist: 1. Uneven or insufficient application of coupling agent: This creates air between the ultrasound head and the skin, preventing the ultrasound energy from being effectively transmitted into the body, greatly reducing the treatment effect. It may also cause local burning or stinging due to energy accumulation on the skin surface, and in severe cases, it may cause thermal damage to the skin. At the same time, most of the energy that is not effectively conducted will be reflected back to the piezoelectric chip of the ultrasound head, causing the chip to overheat and accelerate its aging or damage, thus shortening the lifespan of the ultrasound head. 2. The coupling agent on the patient's abdomen dries out: The whole massage takes 5-15 minutes. If the coupling agent is applied to the abdomen all at once, the coupling agent on the left side may dry out after the right side of the abdomen is massaged, resulting in a serious uneven distribution of energy in the treatment area and creating a "half-body treatment" situation, which reduces the treatment effect. If the coupling agent is applied in sections, it is necessary to put down the microphone and reapply it after a period of massage. In addition, the coupling agent may be insufficient in the edge areas of the sections. The movement of the dry microphone on the skin will increase friction, causing discomfort and affecting the transmission of ultrasound energy.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing postoperative ultrasound therapy devices. Summary of the Invention

[0006] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a postoperative ultrasound therapy device that solves the problems mentioned in the background art, such as uneven application of coupling agent leading to reduced treatment effectiveness, skin and head damage, and the tendency for excessive application of coupling agent to dry out, as well as insufficient application at the edges, all of which affect the transmission of ultrasound energy.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a postoperative ultrasound therapy device, comprising a main body of the device and an ultrasound head movably inserted into one side of the main body of the device, and further comprising: The ball bearings, which rotate at equal angles and are positioned at the bottom of the ultrasonic head to sense friction and press the material out, are used for discharging. An irregularly shaped groove is opened at an equal angle at the bottom of the ultrasonic head to temporarily store the coupling agent. A storage tube for storing coupling agent is fixed at equal angles inside the ultrasonic head; Connecting oil storage pipes installed on both sides of the storage pipe for storing oil; The piston rod, which is inserted into the oil reservoir and moves upward under force, pushes the oil. A push rod, inserted into the storage pipe, moves downward under force to push the material out. A limiting component is flexibly disposed in a storage tube, and the limiting component includes a U-shaped ring disposed in the storage tube to limit the push rod; The second spring and the limiting ball are symmetrically fixed on both sides of the U-shaped ring, moving with its expansion and contraction.

[0008] Preferably, the surface of the ultrasonic head is fixedly fitted with an oil storage ring and a coupling agent storage ring, and the oil storage ring and the coupling agent storage ring are respectively set to be hollow. A piston is movably inserted into the surface of the coupling agent storage ring.

[0009] Preferably, a silicone disc is fixedly laid in the middle of the bottom end of the ultrasonic head, and the silicone disc does not contact the ball. The ultrasonic head has a head assembly fixed in the middle of its inner wall, and the head assembly consists of a piezoelectric crystal, a protective layer, and a sound-absorbing block.

[0010] Preferably, one end of the storage pipe is connected to a feed pipe, and a one-way valve is provided on the inner wall of the feed pipe; The other side of the feed pipe passes through the ultrasonic head and is connected to the coupling agent storage ring.

[0011] Preferably, a one-way valve is provided at the bottom end of the storage pipe; One end of the storage tube is fixed with a limiting block, and a U-shaped ring is sleeved in the limiting block; A second spring is fixedly connected to both sides of the surface of the U-shaped ring, and the other side of the second spring is fixed to the storage tube; Limiting balls are fixedly connected to both sides of the inner wall of the U-shaped ring.

[0012] Preferably, the top end of the oil storage pipe is connected to a connecting pipe and a drain pipe, and the other side of the connecting pipe is connected to the storage pipe; The other end of the drainage tube passes through the ultrasonic sensor and is connected to the oil storage ring.

[0013] Preferably, the push rod consists of two parts: a movable rod and a frustum-shaped column. The movable rod has circular grooves at equal intervals on both sides, and a limiting ball is movably arranged in the circular groove. The frustum-shaped column is adapted to the shape of the bottom end of the inner wall of the storage pipe; A silicone pad is fixedly fitted onto the surface of the frustum-shaped column.

[0014] Preferably, the piston rod is configured in an "I" shape, with the bottom end of the piston rod being movably inserted into the fixed column and the top end of the piston rod being movably inserted into the oil reservoir pipe; A silicone pad is fixedly laid on the surface of the piston rod; The piston rod is wound with a first spring, and the two ends of the first spring are fixed to the top of the inner wall of the fixed column and the surface of the piston rod, respectively.

[0015] Preferably, the two sides of the irregular groove are connected to a fixing pipe, and the other side of the fixing pipe is connected to a fixing post; The diameter of the fixing tube gradually decreases from the irregular groove to the fixing post.

[0016] Preferably, the irregular groove has a three-section structure, with the diameter of the top end of the irregular groove being larger than that of the ball, the middle end of the irregular groove being slightly larger than that of the ball, and the diameter of the bottom end of the irregular groove being smaller than that of the ball.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention cleverly combines the friction force exerted by medical staff when massaging a patient's abdomen with the ultrasound head to sense whether the amount of coupling agent on the patient's abdomen is sufficient or dry. When insufficient, the friction force on the ultrasound head increases, and when the medical staff feels this, they press the ultrasound head. The ball bearing inside the head is pressed back, causing the coupling agent to flow out, thus replenishing it. This is then applied to the patient's abdomen along the massage motion of the ultrasound head, allowing the ultrasound waves to penetrate the patient's body, maintaining the post-massage gas relief effect, and protecting the patient's skin and the ultrasound head. Simultaneously, the squeezing force generated during pressing generates a thrust, forcing oil into the oil reservoir to expel the coupling agent. After each use, the coupling agent is stored in the irregularly shaped groove, allowing for timely replenishment when the coupling agent is insufficient or dry in certain areas. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the ultrasonic sensor of the present invention.

[0020] Figure 3 This is a top-view structural diagram of the ultrasonic sensor of the present invention.

[0021] Figure 4 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the ultrasonic transducer of the present invention after being cut open.

[0023] Figure 6 This is a schematic diagram of the planar structure of the irregular groove of the present invention.

[0024] Figure 7 For the present invention Figure 6 A schematic diagram of the structure and its usage status.

[0025] Figure 8 This is a schematic diagram of the third three-dimensional structure of the present invention.

[0026] Figure 9 This is a schematic diagram of the fourth three-dimensional structure of the present invention.

[0027] Figure 10 This is a schematic diagram of the structure of the oil storage pipe of the present invention after being cut open.

[0028] Figure 11 This is a schematic diagram of the structure of the fixed column of the present invention after being cut open.

[0029] Figure 12 This is a schematic diagram of the structure of the storage tube of the present invention after being cut open.

[0030] Figure 13 This is a schematic diagram of the structure of the storage tube of the present invention after being cut open.

[0031] Figure 14 This is a schematic diagram of the U-shaped ring of the present invention.

[0032] In the diagram: 1. Main body of the therapeutic instrument; 2. Ultrasonic head; 3. Oil storage ring; 4. Coupling agent storage ring; 5. Silicone disc; 6. Ball bearing; 7. Head assembly; 8. Storage tube; 9. Push rod; 10. Feed tube; 11. Connecting tube; 12. Oil storage tube; 13. Drainage tube; 14. Fixing column; 15. One-way valve; 16. Fixing tube; 17. Piston rod; 18. First spring; 19. U-shaped ring; 20. Second spring; 21. Limiting ball; 22. Irregular groove. Detailed Implementation

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

[0034] Please see Figures 1 to 14 The present invention provides a technical solution: a postoperative ultrasound therapy device, comprising a main body 1 and an ultrasound head 2 movably inserted into one side of the main body 1, and further comprising: The ball bearing 6, which is set at the bottom of the ultrasonic head 2 to sense friction and press the material out, rotates at equal angles. An irregularly shaped groove 22 is opened at the bottom of the ultrasonic head 2 at an equal angle to temporarily store the coupling agent; A storage tube 8 for storing coupling agent is fixed at equal angles inside the ultrasonic head 2; Connect the oil storage pipes 12, which are installed on both sides of the storage pipe 8 for storing oil; The piston rod 17, which is inserted into the oil storage pipe 12, moves upward under force to push the oil. The push rod 9, which is inserted into the storage pipe 8, moves downward under force to push the material out; A limiting component is flexibly disposed in the storage tube 8, and the limiting component includes a U-shaped ring 19 disposed in the storage tube 8 to limit the push rod 9; The second spring 20 and the limiting ball 21 are symmetrically fixed on both sides of the U-shaped ring 19 and move with its expansion and contraction.

[0035] Additionally, it should be noted that the ultrasonic head 2 is connected to the main body 1 of the therapeutic instrument via a wire. The main unit of the therapeutic instrument generates a high-frequency oscillating current, which is transmitted to the piezoelectric crystal inside the head through the wire. Under the action of the high-frequency electric field, the crystal undergoes periodic thickness changes (extension and contraction vibration), thereby generating ultrasonic waves. This is existing technology and will not be elaborated on further here.

[0036] In specific implementation, an oil storage ring 3 and a coupling agent storage ring 4 are fixedly sleeved on the surface of the ultrasonic head 2, and the oil storage ring 3 and the coupling agent storage ring 4 are respectively hollow. A piston is inserted into the surface of the coupling agent storage ring 4.

[0037] Additionally, it should be noted that the oil storage ring 3 stores oil, and the coupling agent storage ring 4 stores coupling agent. When the coupling agent is insufficient, the piston can be pulled out to add more.

[0038] In practice, a silicone disc 5 is fixedly laid in the middle of the bottom end of the ultrasonic head 2, and the silicone disc 5 does not contact the ball 6. In addition, it should be noted that the acoustic impedance of silicone is very close to that of human tissue, which can minimize the reflection loss of ultrasound waves at the contact surface, allowing energy to enter the deep tissues of the human body efficiently to achieve the therapeutic purpose. At the same time, the silicone material makes it easy for medical staff and patients to sense the thickness and insufficiency of the coupling agent, and facilitates the timely addition of coupling agent, so that patients can receive good treatment and it is helpful for gas expulsion treatment.

[0039] The ultrasonic head 2 has a head assembly 7 fixed in the middle of its inner wall, and the head assembly 7 consists of a piezoelectric crystal, a protective layer and a sound-absorbing block.

[0040] In practice, one end of the storage pipe 8 is connected to the feed pipe 10, and the inner wall of the feed pipe 10 is equipped with a one-way valve 15. The other side of the feed pipe 10 passes through the ultrasonic head 2 and is connected to the coupling agent storage ring 4.

[0041] Additionally, it should be noted that when the push rod 9 is extruding downwards, the coupling agent should not flow back into the feed pipe 10 and the coupling agent storage ring 4, so that the coupling agent can be smoothly discharged and added.

[0042] In practice, a one-way valve 15 is installed at the bottom of the storage pipe 8; One end of the storage pipe 8 is fixed with a limiting block, and a U-shaped ring 19 is sleeved in the limiting block; A second spring 20 is fixedly connected to both sides of the surface of the U-shaped ring 19, and the other side of the second spring 20 is fixed to the storage tube 8. Limiting balls 21 are fixedly connected to both sides of the inner wall of the U-shaped ring 19.

[0043] In specific implementation, the top end of the oil storage pipe 12 is connected to the connecting pipe 11 and the drain pipe 13, and the other side of the connecting pipe 11 is connected to the storage pipe 8. The other end of the drainage tube 13 passes through the ultrasonic head 2 and is connected to the oil storage ring 3.

[0044] In specific implementation, the push rod 9 consists of two parts: a moving rod and a frustum-shaped column. Circular grooves are equally spaced on both sides of the moving rod, and a limit ball 21 is movably arranged in the circular groove. The shape of the frustum-shaped column is adapted to the shape of the bottom end of the inner wall of the storage pipe 8; Additionally, it should be noted that all the coupling agent in the storage tube 8 can be squeezed out to avoid coupling agent residue and increased addition interval.

[0045] A silicone pad is fixedly fitted onto the surface of the frustum-shaped column.

[0046] In addition, it should be noted that the silicone material can maintain its sealing performance for a long time and has extremely low gas permeability, allowing the oil to be recovered smoothly, reducing adhesion to the inner wall of the storage tube 8, and maintaining the purity of the coupling agent.

[0047] In specific implementation, the piston rod 17 is set in the shape of "I". The bottom end of the piston rod 17 is movably inserted into the fixed column 14, and the top end of the piston rod 17 is movably inserted into the oil reservoir 12. A silicone pad is fixedly laid on the surface of the piston rod 17; A first spring 18 is wound around the surface of the piston rod 17, and the two ends of the first spring 18 are fixed to the top of the inner wall of the fixed column 14 and the surface of the piston rod 17, respectively.

[0048] In specific implementation, the two sides of the irregular groove 22 are connected to the fixing pipe 16, and the other side of the fixing pipe 16 is connected to the fixing post 14. The diameter of the fixing tube 16 gradually decreases from the irregular groove 22 to the fixing post 14.

[0049] Additionally, it should be noted that the diameters on both sides of the fixed tube 16 are different. The design of decreasing diameters helps the coupling agent to move more quickly from the pushed fixed column 14 under the action of gravity, thereby increasing the thrust generated.

[0050] In specific implementation, the irregular groove 22 has a three-section structure. The diameter of the top end of the irregular groove 22 is larger than that of the ball 6, the middle end of the irregular groove 22 is slightly larger than that of the ball 6, and the diameter of the bottom end of the irregular groove 22 is smaller than that of the ball 6.

[0051] Additionally, it should be noted that under normal use and with sufficient coupling agent, the multiple sets of rollers 6 experience relatively low friction and rotate extremely slowly. When the coupling agent is insufficient, the multiple sets of rollers 6 come into contact with the patient's abdominal skin, and the increased friction can be felt as the rollers 6 roll. Once the medical staff feels this, they press the rollers 6, which are then pressed to the top of the irregular groove 22. The coupling agent flows out through the gap between the rollers 6 and the irregular groove 22. Subsequently, the rollers 6 fall to the middle end and then to the bottom end. The coupling agent temporarily stored at the top of the irregular groove 22 is sealed and no longer flows out. The rollers 6 can also sense the magnitude of friction and rotate.

[0052] Working principle: When using this postoperative ultrasound therapy device, first apply the coupling agent to the patient's abdomen, hold the ultrasound head 2 in the abdominal area, avoiding the central surgical incision, and move it slowly, evenly, in a circular or straight line around it.

[0053] When there is sufficient coupling agent, due to its lubricating properties, the silicone disc 5 at the bottom of the ultrasonic head 2 is in contact with the coupling agent and not with the patient's skin. The friction force on the multiple sets of balls 6 is minimal, and the balls 6 roll slowly or not at all in the irregular groove 22.

[0054] When the coupling agent dries out or is applied unevenly and insufficiently, the friction between the silicone disc 5 and the ball bearings 6 increases when medical staff move the ultrasound head 2, resulting in slow and uneven movement. The ball bearings 6 roll faster. At this point, if the ultrasound head 2 is held and pressed down slightly, multiple sets of ball bearings 6 move upwards within the irregular grooves 22. Figure 7 The ball 6 moves along the travel trajectory to the large diameter position at the top of the irregular groove 22, as shown in the image. Figure 7 As shown in the last figure, the coupling agent temporarily stored in the irregular groove 22 flows out through the gap between the ball 6 and the irregular groove 22. At the same time, some of the coupling agent is squeezed into the fixed tube 16 by the ball 6. At this time, the ultrasonic head 2 is no longer pressed. Multiple sets of balls 6 move down by gravity to seal the irregular groove 22, and the abdominal massage of the patient can continue.

[0055] When the coupling agent in the irregular groove 22 is squeezed into the fixed tube 16, it is squeezed into the fixed column 14 along the fixed tube 16, causing the piston rod 17 to be pushed upward. The first spring 18 is forced to retract, and the upward-moving piston rod 17 pushes the oil in the oil storage tube 12 upward, flowing along the connecting tube 11 to the middle of the frustum-shaped column of the push rod 9 and the storage tube 8, thereby pushing the push rod 9 downward to squeeze the coupling agent in the storage tube 8. New coupling agent flows out from the bottom end of the storage tube 8 and the one-way valve 15, flowing into the irregular groove 22 for storage. At this time, the oil in the oil storage tube 12 is reduced and is subjected to gravity. The oil in the oil storage ring 3 flows along the drain tube 13 into the oil storage tube 12 and is filled. The piston rod 17 is forced to move downward to reset, and the first spring 18 also resets and rebounds, pushing the piston rod 17 to reset, pushing the coupling agent in the fixed column 14 into the irregular groove 22. The newly injected coupling agent also further pushes the ball 6 to reset.

[0056] As the material is used continuously, the amount of oil in the storage tube 8 increases, and the push rod 9 is pushed downward. When the push rod 9 moves downward, it pushes the limiting ball 21 at the storage tube 8. The two sets of limiting balls 21 move to both sides at the same time, causing the U-shaped ring 19 to deform and the second spring 20 to retract. When the circular groove of the push rod 9 gradually moves down to the limiting ball 21, the U-shaped ring 19 and the second spring 20 reset and rebound, pushing the limiting ball 21 to engage in the circular groove of the push rod 9 and engage in the limiting position.

[0057] When push rod 9 moves to the low coupling agent level and the coupling agent is used up, the piston on the surface of the coupling agent storage ring 4 is opened, and coupling agent is added to the coupling agent storage ring 4. The coupling agent enters the storage pipe 8 through the feed pipe 10 and pushes push rod 9 upward to reset. At this time, the oil in the storage pipe 8 is squeezed into the connecting pipe 11 and flows back into the oil storage pipe 12, and flows into the oil storage ring 3 through the drain pipe 13 to reset.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A postoperative ultrasound therapy device, comprising a main body (1) and an ultrasound head (2) movably inserted into one side of the main body (1), characterized in that, Also includes: The ball bearing (6) is set at the bottom of the ultrasonic head (2) to sense the frictional force and discharge the material under pressure. An irregularly shaped groove (22) is opened at the bottom of the ultrasonic head (2) at an equal angle to temporarily store the coupling agent. A storage tube (8) for storing coupling agent is fixed at equal angles inside the ultrasonic head (2); Connect the oil storage pipes (12) that are set on both sides of the storage pipe (8) for storing oil. The piston rod (17), which is inserted into the oil storage pipe (12) and moves upward under force, pushes the oil. The push rod (9) that is inserted into the storage pipe (8) and moves downward under force to push the material out. A limiting component is flexibly disposed in the storage tube (8), and the limiting component includes a U-shaped ring (19) disposed in the storage tube (8) to limit the push rod (9). The second spring (20) and the limiting ball (21) are symmetrically fixed on both sides of the U-shaped ring (19) and move with its expansion and contraction.

2. The postoperative ultrasound therapy device according to claim 1, characterized in that: The surface of the ultrasonic head (2) is fixedly fitted with an oil storage ring (3) and a coupling agent storage ring (4), and the oil storage ring (3) and the coupling agent storage ring (4) are respectively set to be hollow. A piston is movably inserted into the surface of the coupling agent storage ring (4).

3. The postoperative ultrasound therapy device according to claim 1, characterized in that: A silicone disc (5) is fixedly laid in the middle of the bottom end of the ultrasonic head (2), and the silicone disc (5) and the ball (6) do not contact each other. The ultrasonic head (2) has a head assembly (7) fixed in the middle of its inner wall, and the head assembly (7) consists of a piezoelectric crystal, a protective layer and a sound-absorbing block.

4. The postoperative ultrasound therapy device according to claim 1, characterized in that: One end of the storage pipe (8) is connected to the feed pipe (10), and a one-way valve (15) is provided on the inner wall of the feed pipe (10). The other side of the feed pipe (10) passes through the ultrasonic head (2) and is connected to the coupling agent storage ring (4).

5. A postoperative ultrasound therapy device according to claim 1, characterized in that: A one-way valve (15) is provided at the bottom end of the storage pipe (8). One end of the storage tube (8) is fixed with a limiting block, and a U-shaped ring (19) is sleeved in the limiting block. The two sides of the surface of the U-shaped ring (19) are fixedly connected to the second spring (20), and the other side of the second spring (20) is fixed to the storage tube (8); Limiting balls (21) are fixedly connected to both sides of the inner wall of the U-shaped ring (19).

6. A postoperative ultrasound therapy device according to claim 1, characterized in that: The top end of the oil storage pipe (12) is connected to a connecting pipe (11) and a drain pipe (13), and the other side of the connecting pipe (11) is connected to the storage pipe (8). The other end of the drainage tube (13) passes through the ultrasonic head (2) and is connected to the oil storage ring (3).

7. A postoperative ultrasound therapy device according to claim 5, characterized in that: The push rod (9) consists of two parts: a movable rod and a frustum-shaped column. The movable rod has circular grooves at equal intervals on both sides, and a limiting ball (21) is movably arranged in the circular groove. The frustum-shaped column is adapted to the shape of the bottom end of the inner wall of the storage pipe (8); A silicone pad is fixedly fitted onto the surface of the frustum-shaped column.

8. A postoperative ultrasound therapy device according to claim 1, characterized in that: The piston rod (17) is configured in the shape of "I". The bottom end of the piston rod (17) is movably inserted into the fixed column (14), and the top end of the piston rod (17) is movably inserted into the oil storage pipe (12). A silicone pad is fixedly laid on the surface of the piston rod (17); The surface of the piston rod (17) is wound with a first spring (18), and the two ends of the first spring (18) are fixed to the top of the inner wall of the fixed column (14) and the surface of the piston rod (17), respectively.

9. A postoperative ultrasound therapy device according to claim 1, characterized in that: The two sides of the irregular groove (22) are connected to the fixing pipe (16), and the other side of the fixing pipe (16) is connected to the fixing column (14). The diameter of the fixing tube (16) gradually decreases from the irregular groove (22) to the fixing post (14).

10. A postoperative ultrasound therapy device according to claim 1, characterized in that: The irregular groove (22) has a three-section structure. The diameter of the top end of the irregular groove (22) is larger than that of the ball (6), the middle end of the irregular groove (22) is slightly larger than that of the ball (6), and the diameter of the bottom end of the irregular groove (22) is smaller than that of the ball (6).

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