Ultrasonic main machine head and ultrasonic therapeutic apparatus

Abstract

The invention discloses an ultrasonic main machine head and an ultrasonic therapeutic apparatus. The ultrasonic main machine head comprises an annular bag, an annular shell, an ultrasonic patch, a sliding block and a driving piece. The ring bag is used for sleeving an injured limb of a patient, and an inner cavity of the ring bag is used for feeding or discharging a coupling agent; the ring shell is sleeved outside the ring bag; the sliding block is slidably arranged on the annular shell, and one face of the sliding block is right opposite to the peripheral face of the annular bag. The ultrasonic patch is attached to one surface, facing the annular bag, of the sliding block and is in contact with the peripheral surface of the annular bag; and the driving piece is arranged on the annular shell and connected with the sliding block, and the driving piece is used for driving the sliding block to do circular motion in the circumferential direction of the annular shell. Thus, automatic alternation of the treatment area is achieved through mechanical movement, the skin surface temperature is effectively controlled to be within the safe range all the time on the premise that the total treatment dosage is not reduced, and therefore the single continuous treatment time is prolonged, the treatment efficiency is improved, and the use safety and comfort of a patient are improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an ultrasound host head and an ultrasound therapy device. Background Technology

[0002] In recent years, ultrasound therapy devices have been increasingly widely used in the field of rehabilitation medicine, especially in treatment scenarios such as limb injury rehabilitation, chronic pain relief, and soft tissue repair, demonstrating significant clinical effects. Unlike traditional ultrasound equipment mainly used for imaging diagnosis, ultrasound therapy devices used for therapeutic purposes require the ultrasound head to be closely fitted to the patient's skin surface and continuously applied to a specific area for a period of time (e.g., 15 minutes) to ensure that low-power ultrasound energy can effectively penetrate to the target tissue and exert its biostimulatory and repair effects.

[0003] However, in actual use, the continuous accumulation of ultrasound energy in local tissues can cause the skin surface temperature to gradually rise. When the local temperature exceeds the safety threshold (usually 42℃±1℃), it may cause the risk of tissue thermal damage. Therefore, treatment must be interrupted, the machine stopped for cooling (e.g., paused for 5 minutes), or the main unit head moved to another area to continue treatment. To ensure safe use, existing ultrasound therapy devices typically integrate a temperature sensor inside the main unit head to monitor the working surface temperature in real time and control the device's operating status accordingly.

[0004] There are two main factors contributing to increased skin surface temperature: First, ultrasound energy is absorbed and converted into heat in the skin and superficial tissues, causing localized heat accumulation. Second, the electronic components and transducers inside the ultrasound head generate heat during prolonged operation, which is then transferred to the outer shell surface in contact with the skin via thermal conduction. Although the internal temperature of the head can be controlled to some extent through cooling methods such as air cooling, liquid cooling, or heat pipes, thus slowing down heat conduction to the skin, the temperature rise caused by the deposition of ultrasound energy in the tissue is still difficult to completely avoid. Therefore, at specific operating frequencies and output power, the continuous working time of an ultrasound therapy device at a single location is strictly limited, affecting treatment efficiency and user experience. Summary of the Invention

[0005] This application provides an ultrasound host head and an ultrasound therapy device, which achieve automatic rotation of treatment areas through mechanical movement. Without reducing the total treatment dose, it effectively controls the skin surface temperature to always be within a safe range, thereby extending the single continuous treatment time, improving treatment efficiency, and enhancing the safety and comfort of patients.

[0006] The embodiments of this application can be implemented as follows: In a first aspect, the present invention provides an ultrasonic main unit head, including a ring capsule, a ring shell, an ultrasonic patch, a slider, and a driving component; The ring is used to be placed over the injured limb of the patient, and the inner cavity of the ring is used for the insertion or discharge of coupling agent; The annular shell is fitted outside the annular sac; The slider is slidably disposed on the annular shell, and one side of the slider is directly opposite the outer peripheral surface of the annular bladder; The ultrasonic patch is attached to the slider on the side facing the annular sac and is in contact with the outer peripheral surface of the annular sac; The driving component is disposed on the annular shell and connected to the slider. The driving component is used to drive the slider to make a circular motion along the circumference of the annular shell.

[0007] In an optional embodiment, the annular shell includes two arcuate components; The first ends of the two arc-shaped components are hinged together, and the second ends are detachably connected. Both of the aforementioned arc-shaped components are equipped with a slider. Driven by the driving component, the slider can reciprocate along the arc length of the arc component.

[0008] In an optional embodiment, the annular shell further includes a first limiting plate and a second limiting plate; The two first limiting plates are respectively fixed on the two arc-shaped parts near the first end, and a gap is left between the two first limiting plates; The two second limiting plates are respectively fixed on the two arc-shaped parts near the second end, and the two second limiting plates are in contact with each other; On either of the arc-shaped components, the slider can reciprocate between the first limiting plate and the second limiting plate.

[0009] In an optional embodiment, on any of the arc components, along the arc length direction of the arc component, a proximity sensor is provided on the opposite side of the first limiting plate and the second limiting plate. During the process of the driving member driving the slider to slide from one of the first limiting plate or the second limiting plate to the other, if the proximity sensor detects the slider, the driving member drives the slider to slide from the other of the first limiting plate or the second limiting plate to one of them.

[0010] In an optional embodiment, the arc component includes two opposing fixed arc plates and a guide arc plate fixed between the two fixed arc plates; Both of the aforementioned fixed arc plates are fitted outside the annular bladder; The slider is located in the gap between the guide arc plate and the outer peripheral surface of the annular bladder.

[0011] In an optional embodiment, a gap is left between the side edge of the guide arc plate and the fixed arc plate; The drive component includes a hub motor and a connecting column; One end of the connecting column is fixedly connected to the side of the slider facing the arc plate; The connecting post passes through the gap between the guide arc plate and the fixed arc plate, and the other end of the connecting post is located on the side of the guide arc plate facing away from the annular bladder; The stator shaft of the hub motor passes through the connecting column, and the rotor housing of the hub motor contacts the guide arc plate.

[0012] In an optional embodiment, the other end of the connecting post is provided with an axially extending mounting groove that penetrates the outer peripheral surface of the connecting post. The outer circumferential surface of the connecting column is provided with external threads; The driving component also includes a nut, which engages with the external thread; The stator shaft passes through the mounting groove, and the nut is located on the side of the stator shaft away from the bottom of the mounting groove.

[0013] In an optional embodiment, the arc component further includes a supporting arc plate, and two supporting arc plates are connected at an included angle on the side of the guide arc plate facing away from the annular bladder. The rotor housing is located between the two supporting arc plates, and the connecting column is located between the supporting arc plate and the fixing arc plate. The stator shaft can be slidably rested on the support arc plate.

[0014] In an optional embodiment, the end face of the fixed arc plate is provided with an arc-shaped mounting portion concentric with itself, the arc-shaped mounting portion being used to fix the wires connected to the hub motor and the ultrasonic patch.

[0015] Secondly, the present invention provides an ultrasound therapy device, comprising a peristaltic pump, a container, an ultrasound controller, and an ultrasound host head as described in any of the foregoing embodiments; The container is used to store the coupling agent and is connected to the annular capsule via a pipe; The peristaltic pump is used to squeeze the tubing to achieve the transfer of coupling agent between the annulus and the container; The ultrasound controller is electrically connected to the ultrasound patch.

[0016] Compared with the prior art, the beneficial effects of the embodiments of this application include, for example: By mounting an ultrasound patch onto a slider that slides circumferentially along the annular shell, and having the slider continuously rotate around the patient's limb by a drive mechanism, the ultrasound patch maintains continuous contact with the outer circumferential surface of the annular capsule, transmitting ultrasound energy to the limb tissue via a coupling agent. Simultaneously, its position changes continuously as the slider moves. Because the ultrasound energy is no longer concentrated on a single fixed point but is distributed circumferentially along the limb, each local area receives intermittent cooling time after ultrasound irradiation, significantly slowing the rate of heat accumulation. Furthermore, the coupling agent can be dynamically replenished or drained within the annular capsule, ensuring ultrasound transmission efficiency. It also allows for easy control of the coupling agent volume within the capsule to inflate or deflate it, facilitating secure attachment or removal of the entire ultrasound head to the patient's limb. The expanded annular capsule is also elastic, adapting to the shape of the limb and improving patient comfort.

[0017] Therefore, the ultrasound host head of this application realizes automatic rotation of treatment areas through mechanical movement, effectively controlling the skin surface temperature to always be within a safe range without reducing the total treatment dose, thereby extending the single continuous treatment time, improving treatment efficiency, and enhancing the safety and comfort of patients. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is one of the schematic diagrams of the ultrasonic therapy device according to an embodiment of this application; Figure 2 This is a second schematic diagram of the ultrasonic therapy device according to an embodiment of this application; Figure 3 This is a second schematic diagram of the ultrasonic therapy device according to an embodiment of this application; Figure 4 for Figures 1 to 3 A schematic diagram of the drive component and slider; Figure 5 for Figures 1 to 3 One of the structural diagrams of a central ring shell; Figure 6 for Figures 1 to 3 Schematic diagram of the structure of the middle ring shell (Part 2); Figure 7 for Figures 1 to 3 Schematic diagram of the structure of the middle ring shell (Part 3); Figure 8 for Figures 1 to 3 A schematic diagram of the distribution of the motor wires; Figure 9 for Figures 1 to 3 Schematic diagram of the distribution of ultrasonic lead wires; Figure 10 for Figures 1 to 3 A schematic diagram showing the distribution of the sensor wires.

[0020] Icons: 1-Arc component; 103-Fixed arc plate; 104-Guide arc plate; 105-Supporting arc plate; 106-Arc mounting part; 2-Ring bladder; 3-Peristaltic pump; 4-Pipeline; 5-Container; 6-Ultrasonic controller; 7-Wire connector; 8-Proximity sensor; 9-Motor wire; 10-Sensor wire; 11-Ultrasonic wire; 12-Hub motor; 13-First limiting plate; 131-Second limiting plate; 14-Hinge; 15-Nut; 16-Slider; 17-Ultrasonic patch; 18-Magnet; 19-Connecting post; 191-Mounting groove; 192-External thread; 20-Outer cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] refer to Figures 1 to 3 This application discloses an ultrasonic therapy device, which includes a peristaltic pump 3, a container 5, an ultrasonic controller 6, and an ultrasonic main unit head; The ultrasonic main unit head includes a ring 2, a ring shell, an ultrasonic patch 17, an outer cover 20, a slider 16, and a drive component; The ring bladder 2 is used to cover the injured limb of the patient, and the container 5 is used to store the coupling agent, which is connected to the ring bladder 2 through the tube 4; the peristaltic pump 3 is used to squeeze the tube 4 to realize the transfer of the coupling agent between the ring bladder 2 and the container 5, so that the inner cavity of the ring bladder 2 can be used for the delivery or discharge of the coupling agent.

[0029] The ultrasonic controller 6 is electrically connected to the ultrasonic patch 17 and the drive unit to control the start and stop of the ultrasonic patch 17 and the start and stop and drive direction of the drive unit.

[0030] The annular shell is fitted outside the annular bladder 2, and the outer cover 20 is fitted onto the annular shell; The slider 16 is slidably disposed on the annular shell, and one side of the slider 16 is directly opposite the outer peripheral surface of the annular bladder 2; Combination Figure 4 The ultrasonic patch 17 is attached to the side of the slider 16 facing the annular capsule 2 and is in contact with the outer peripheral surface of the annular capsule 2. The driving component is located between the ring shell and the outer cover 20 and is connected to the slider 16. The driving component is used to drive the slider 16 to make a circular motion along the circumference of the ring shell.

[0031] As described above, this solution proposes an ultrasound head with a ring-shaped structure. An ultrasound patch 17 is mounted on a slider 16 that slides circumferentially along the ring shell. A drive unit moves the slider 16 in a continuous circular motion around the patient's limb. In this structure, the ultrasound patch 17 is in continuous contact with the outer circumferential surface of the ring sac 2, transmitting ultrasound energy to the limb tissue via a coupling agent. Simultaneously, its position changes continuously as the slider 16 moves. Because the ultrasound energy is no longer concentrated on a single fixed point but is distributed circumferentially along the limb, each local area receives intermittent cooling time after ultrasound irradiation, significantly slowing down the rate of heat accumulation. Furthermore, the coupling agent can be dynamically replenished or discharged within the ring sac 2, ensuring ultrasound transmission efficiency. It also allows for easy control of the coupling agent volume within the ring sac 2 to inflate or deflate the ring sac 2, facilitating secure attachment or removal of the entire ultrasound head from the patient's limb. The expanded ring sac 2 is elastic, adapting to the shape of the limb and improving patient comfort.

[0032] Therefore, the ultrasound host head of this application realizes automatic rotation of treatment areas through mechanical movement, effectively controlling the skin surface temperature to always be within a safe range without reducing the total treatment dose, thereby extending the single continuous treatment time, improving treatment efficiency, and enhancing the safety and comfort of patients.

[0033] The outer casing 20 is fitted onto the outside of the ring shell, forming the outermost shell of the main unit head, serving to encapsulate and protect the overall structure. It provides a stable mounting reference and mechanical support for internal components (such as the drive unit, slider 16, ring shell, etc.), ensuring that each moving part maintains alignment and smooth operation during circumferential motion.

[0034] Meanwhile, the outer casing 20 physically isolates the internal electronic components and drive mechanism from the patient and operating environment, preventing users from directly contacting moving parts or live components and improving the safety of equipment use; at the same time, it prevents sweat or other liquids from seeping into the interior, ensuring electrical insulation and equipment reliability.

[0035] Understandably, as an external component that users come into direct contact with, the outer cover 20 can be ergonomically optimized to facilitate gripping, positioning, and operation, thereby enhancing the clinical user experience.

[0036] The driving components typically generate heat during operation, and the cavity formed between the outer casing 20 and the annular shell can serve as a heat dissipation channel. By rationally designing the material of the outer casing 20 (such as using engineering plastics or metal alloys with good thermal conductivity) and its surface structure (such as adding heat dissipation fins or ventilation holes), it is helpful to dissipate the heat generated by the friction of the driving components and the slider 16, reduce heat conduction to the annular sac 2 and the skin side, and indirectly assist in controlling the temperature of the treatment interface.

[0037] refer to Figure 2, Figure 5 , Figure 6 and Figure 7 In this embodiment, the ring shell includes two arc-shaped parts 1; the first ends of the two arc-shaped parts 1 are hinged and the second ends are detachably connected; each of the two arc-shaped parts 1 is equipped with a slider 16; under the drive of the driving member, the slider 16 can reciprocate along the arc length direction of the arc-shaped part 1.

[0038] In this way, by designing the ring shell as consisting of two arc-shaped parts 1, with the first end hinged and the second end detachably connected, an openable semi-ring structure is formed, which not only retains the treatment trajectory that is close to a ring, but also significantly improves the device's adaptability to patients and ease of operation.

[0039] Based on this, each arc component 1 is equipped with a slider 16, which is driven by the same driving component or a cooperative driving mechanism, so that the two sliders 16 reciprocate synchronously or alternately along the arc length direction of their respective arc components 1. Although the reciprocating motion is not a complete circle, it can still achieve periodic displacement of the ultrasonic patch 17 within a large angle range (e.g., above 180°) on the arc path covered by the opening and closing ring shell.

[0040] Therefore, the ultrasound energy is applied cyclically on a continuous arc surface, allowing the tissue to receive intermittent cooling time after irradiation, effectively slowing down the rate of temperature rise on the skin surface. Simultaneously, the symmetrical or staggered movement of the dual sliders 16 improves the uniformity of energy distribution, preventing localized overheating caused by prolonged unilateral application. In addition, the detachable connection structure allows for quick opening of the ring shell to fit or remove the limb, making it particularly suitable for patients with postoperative swelling, joint deformities, or those wearing braces, significantly expanding the clinical applicability of the device.

[0041] The method of hinged connection between the two arc-shaped parts 1 is not limited. For example, they can be connected by hinge 14, or by pins or other means.

[0042] Since the slider 16 needs to reciprocate stably and reliably along the arc length of the arc component 1 to ensure that the ultrasonic patch 17 continuously covers the effective area during treatment and avoids derailment or collision, the movement stroke of the slider 16 must be precisely constrained. If the displacement endpoint is controlled solely by the drive components, it may be difficult to completely avoid the overtravel of the slider 16 due to mechanical inertia, control delay, or external interference, which may lead to structural jamming, increased noise, or even component damage. Therefore, in this embodiment, the annular shell also includes a first limiting plate 13 and a second limiting plate 131; the two first limiting plates 13 are respectively fixed on the two arc-shaped parts 1 at positions near the first end, and a gap is left between the two first limiting plates 13; the two second limiting plates 131 are respectively fixed on the two arc-shaped parts 1 at positions near the second end, and the two second limiting plates 131 are in contact with each other; on any arc-shaped part 1, the slider 16 can reciprocate between the first limiting plate 13 and the second limiting plate 131.

[0043] In this way, a first limiting plate 13 and a second limiting plate 131 are added to the ring shell, and the two first limiting plates 13 are respectively fixed at the positions of the two arc parts 1 near the hinge end (first end) and left with a gap between them. This does not hinder the arc parts 1 from opening and closing normally around the hinge point, and provides a clear travel stop boundary for the slider 16 on this side. Meanwhile, two second limiting plates 131 are respectively located on the arc part 1 near the detachable connection end (second end), and they fit together in the closed state of the ring shell to form a continuous and stable rigid stop surface, which serves as the limit of the stroke end point on the other side of the slider 16. Thus, on any arc-shaped component 1, the slider 16 is confined to the arc-shaped track interval between the first limiting plate 13 and the second limiting plate 131, and its range of motion is physically constrained to ensure that the ultrasonic patch 17 always acts on the preset effective treatment area.

[0044] In addition, the gap design between the first limiting plates 13 is cleverly compatible with the opening and closing function of the ring shell. When the ring shell is opened, the two arc parts 1 rotate around the hinge end. The gap between the limiting plates allows relative rotation without interference. After closing, the complete limiting function is restored, realizing the synergy of the dual goals of "limiting" and "opening and closing".

[0045] Magnets 18 are provided on one side of each of the two second limiting plates 131, so that the second ends of the two arc parts 1 can be automatically aligned and reliably closed by magnetic attraction. The magnetic connection method has the advantages of non-contact alignment, self-guided closure, easy operation and no mechanical wear. When the user brings the two arc parts 1 close together, the magnets 18 will generate attraction within a certain distance, guiding the second limiting plates 131 to automatically stick together and be tightly attracted, without the need for precise manual alignment. Meanwhile, the magnetic connection is easy to operate with one hand, making it especially suitable for scenarios where patients can use it independently or for medical staff to deploy it quickly during rehabilitation treatment; it can be separated by applying only moderate pulling force when disconnected, has a long service life of repeated opening and closing, and has no easily damaged parts such as moving buckles, which improves the product's durability and ease of maintenance.

[0046] In addition, since the second limiting plate 131 itself serves as the end stop structure for the movement of the slider 16, its mating surface forms a rigid and flat docking interface under the magnetic attraction, which enhances the rigidity and stability of the overall ring shell structure. Of course, in some embodiments, the second ends of the two arc-shaped parts 1 can also be detachably connected in other ways, such as snap-fit ​​connection, screw connection, etc.

[0047] In this embodiment, the arc component 1 includes two opposing fixed arc plates 103 and a guide arc plate 104 fixed between the two fixed arc plates 103; Both fixed arc plates 103 are fitted outside the annular bladder 2; The slider 16 is located in the gap between the guide arc plate 104 and the outer peripheral surface of the ring bladder 2.

[0048] Thus, by constructing the arc component 1 as a composite frame structure consisting of two opposing fixed arc plates 103 and a guide arc plate 104 fixed between them, the two fixed arc plates 103 are fitted onto the annular bladder 2 from both the inner and outer sides, forming radial coverage and axial positioning of the annular bladder 2, thereby enhancing the overall structural rigidity. The guide arc plate 104 located between the two fixed arc plates 103 constitutes the dedicated motion track for the slider 16, and a gap is formed between its inner side and the outer circumferential surface of the annular bladder 2, in which the slider 16 is precisely embedded.

[0049] Thus, during the movement, the slider 16 is simultaneously limited by the outer side of the guide arc plate 104 and supported by the inner side of the outer circumferential surface of the ring bladder 2, achieving double-sided constraint and effectively preventing it from warping, shifting or vibrating in the direction perpendicular to the plane of motion.

[0050] In detail, there is a gap between the side edge of the guide arc plate 104 and the fixed arc plate 103; The drive components include a hub motor 12 and a connecting column 19; One end of the connecting column 19 is fixedly connected to the side of the slider 16 facing the arc plate; The connecting post 19 passes through the gap between the guide arc plate 104 and the fixed arc plate 103, and the other end of the connecting post 19 is located on the side of the guide arc plate 104 facing away from the annular bladder 2. The stator shaft of the hub motor 12 passes through the connecting column 19, and the rotor housing of the hub motor 12 contacts the guide arc plate 104.

[0051] In this way, one end of the connecting post 19 is fixed to the side of the slider 16 facing the arc plate, and the other end passes through the gap reserved between the guide arc plate 104 and the fixed arc plate 103, extending to the side of the guide arc plate 104 facing away from the ring bladder 2, forming a through-type support and force transmission channel. The stator shaft of the hub motor 12 passes through the connecting post 19, while its rotor housing directly contacts the outer surface of the guide arc plate 104.

[0052] When the hub motor 12 is powered on, the rotor housing rotates relative to the stator shaft and forms a rolling or rolling-sliding composite contact with the surface of the guide arc plate 104 through friction or the added transmission grooves, thereby driving the entire hub motor 12 (along with the connecting column 19 and slider 16 fixed thereto) to move along the arc path of the guide arc plate 104.

[0053] Among them, since the hub motor 12 integrates the motor and the drive wheel into one unit, there is no need for an additional reducer or transmission mechanism, which greatly simplifies the layout of the drive system; at the same time, its rotor shell directly acts on the guide arc plate 104, so that the point of application of the driving force is close to the movement trajectory of the slider 16, effectively reducing the overturning torque caused by the lever arm offset and improving the stability of the movement. In addition, the gap between the side edge of the guide arc plate 104 and the fixed arc plate 103 not only provides a passage for the connecting column 19, but also avoids interference between the connecting column 19 and the fixed arc plate 103 during the movement, ensuring that the slider 16 runs unobstructed throughout its entire stroke; this gap can also serve as a wiring or heat dissipation channel, further optimizing the use of internal space.

[0054] Understandably, since the entire drive assembly (hub motor 12 + connecting post 19) is located outside the guide arc plate 104 and is physically isolated from the treatment area (ring 2, coupling agent, skin) on the inside, the heat generated by the hub motor 12 can be prevented from being directly conducted to the treatment interface, which helps to ensure temperature control safety.

[0055] It should be noted that in order to achieve safe and reliable reciprocating motion of slider 16 on arc part 1, it is necessary to accurately sense and control its stroke endpoint in real time. Although mechanical limit can prevent overtravel, it cannot actively trigger reversal, which can easily cause slider 16 to hit the limit plate, generating impact noise, mechanical wear, or even drive overload.

[0056] Therefore, in this embodiment, on any arc member 1, along the arc length direction of the arc member 1, a proximity sensor 8 is provided on the side of the first limiting plate 13 and the second limiting plate 131 that are opposite to each other. During the process of the drive member driving the slider 16 to slide from one of the first limiting plate 13 or the second limiting plate 131 to the other, if the proximity sensor 8 detects the slider 16 (specifically, by indirectly detecting the position of the slider 16 by detecting the rotor housing), the drive member drives the slider 16 to slide from the other of the first limiting plate 13 or the second limiting plate 131 to one of them.

[0057] Thus, proximity sensors 8 are respectively installed along the arc length direction on the opposite sides of the first limiting plate 13 and the second limiting plate 131 (i.e., towards the movement path of the slider 16) to detect the position of the slider 16. Since the slider 16 body is located in the narrow gap between the ring bladder 2 and the guide arc plate 104, directly installing the sensing target or wiring is difficult. However, since the hub motor 12 and the slider 16 move together, the position of the slider 16 can be indirectly detected by detecting the rotor housing of the hub motor 12, thus balancing measurability and structural feasibility.

[0058] When the drive unit moves the slider 16 from the first limiting plate 13 to the second limiting plate 131 (or vice versa), once the proximity sensor 8 detects that the rotor housing has entered its sensing area, it determines that the slider 16 has reached the end of its stroke. At this time, the drive unit immediately reverses its running direction, driving the slider 16 to retract in the opposite direction, thereby achieving automatic reversal and forming a closed-loop feedback mechanism. In this way, the closed-loop position feedback mechanism effectively avoids hard collisions between the slider 16 and the limiting plates, significantly reducing mechanical shock and operating noise, and extending the service life of the mechanism.

[0059] It is understood that this application does not impose specific restrictions on the type of proximity sensor 8. For example, Hall sensors, inductive sensors, photoelectric sensors, etc., can be used to adapt to different design requirements, environmental conditions, and cost considerations.

[0060] In this embodiment, the other end of the connecting column 19 is provided with an axially extending mounting groove 191, which penetrates the outer peripheral surface of the connecting column 19; the outer peripheral surface of the connecting column 19 is provided with an external thread 192; the driving component also includes a nut 15, which engages with the external thread 192; the stator shaft passes through the mounting groove 191, and the nut 15 is located on the side of the stator shaft away from the bottom of the mounting groove 191.

[0061] In this way, an axially extending mounting groove 191 that penetrates the outer circumferential surface is provided at the end of the connecting column 19 away from the slider 16 (i.e. the side facing away from the annular bladder 2), so that the stator shaft can be radially embedded into the groove without having to insert the entire connecting column 19 axially. At the same time, an external thread 192 is machined on the outer circumferential surface of the connecting column 19, and a nut 15 is configured to mate with it. After the stator shaft is placed into the mounting groove 191, the nut 15 is tightened onto the external thread 192 and positioned on the side of the stator shaft away from the bottom of the mounting groove 191 (i.e., the side near the groove opening), thereby forming a radial limit on the stator shaft, which greatly simplifies the assembly process.

[0062] Among them, the connection method of external thread 192 and nut 15 also has the advantages of adjustable preload, repeated disassembly, and good self-locking, which takes into account both connection reliability and maintenance convenience.

[0063] To ensure that the hub motor 12 has good structural support, motion guidance and thermal-electric isolation performance when running on the arc track, its rotor housing and stator shaft need to be reasonably laid out and mechanically constrained.

[0064] Therefore, in this embodiment, the arc component 1 also includes a supporting arc plate 105. The guide arc plate 104 is connected at an angle to two supporting arc plates 105 on the side facing away from the ring bladder 2. The rotor housing is located between the two supporting arc plates 105. The connecting column 19 is located between the supporting arc plate 105 and the fixed arc plate 103. The stator shaft can be slidably rested on the supporting arc plate 105.

[0065] In this way, the guide arc plate 104 is connected at an angle to two symmetrically or parallelly arranged support arc plates 105 on the side facing away from the ring bladder 2, forming an open "U" or "V" shaped support frame; the rotor housing of the hub motor 12 is just accommodated between the two support arc plates 105, so that when it rolls or slides along the arc length direction, it is laterally limited by the support arc plates 105 on both sides, effectively preventing it from deviating or overturning in the direction perpendicular to the plane of motion, and improving the stability of the running trajectory.

[0066] Meanwhile, the connecting column 19 passes through the gap between the guide arc plate 104 and the fixed arc plate 103, and is further located in the cavity between the support arc plate 105 and the fixed arc plate 103, so that the entire drive-transmission assembly is wrapped in a compact space formed by the fixed arc plate 103, the guide arc plate 104 and the support arc plate 105, thus optimizing the overall structural layout.

[0067] The stator shaft is not completely suspended, but is slidably placed on the outer arc edge of the support arc plate 105, forming an additional load-bearing support point; it shares the bending moment load borne by the connecting column 19, preventing it from deforming or fatigue fracture due to long-term stress.

[0068] Understandably, the sliding contact between the stator shaft and the support arc plate 105 uses low-friction materials or surface treatments (such as PTFE coating, stainless steel polishing, etc.), which can provide support while allowing the stator shaft to move smoothly with the slider 16 without affecting the drive response speed.

[0069] In the arc motion system of the ultrasonic main unit head, the hub motor 12, the slider 16 and the ultrasonic patch 17 reciprocate along the arc part 1. If the power supply and signal wires (i.e., motor wire 9 and ultrasonic wire 11) of the hub motor 12 and the ultrasonic patch 17 are laid out in a free suspension, they are prone to fatigue fracture, insulation damage or signal interference during repeated bending, stretching or friction with moving parts, which seriously affects the reliability and service life of the equipment. If the wires are directly fixed to the slider 16 or the connecting column 19 and led out along the arc length direction, the wires may still be damaged due to the small bending radius or local stress concentration when the slider 16 changes direction or reaches the limit position of the stroke.

[0070] Therefore, refer to Figure 8 and Figure 9 In this embodiment, the end face of the fixed arc plate 103 is provided with an arc-shaped mounting part 106 concentric with itself. The arc-shaped mounting part 106 is used to fix the wires connected to the hub motor 12 and the ultrasonic patch 17.

[0071] Thus, the arc-shaped mounting portion 106 serves as a dedicated cable channel for fixing and guiding the wires of the ultrasonic patch 17 and the hub motor 12. After the wires are led out from the hub motor 12 and the ultrasonic patch 17, they enter the arc-shaped mounting portion 106 along the connecting post 19 and are constrained within the groove. Since the arc-shaped mounting portion 106 and the arc component 1 are concentric, the wires always extend along a natural bending trajectory during the movement of the slider 16, avoiding unintended twisting, folding, or excessive stretching, effectively controlling the minimum bending radius, and significantly improving cable durability.

[0072] For example, the central angle of the arc-shaped mounting portion 106 is less than or equal to 90°, one end of the arc-shaped mounting portion 106 can be located near the second end of the arc member 1, and the other end is located at the middle of the arc length of the arc member 1 itself.

[0073] This precisely corresponds to the critical section where the conductor is most susceptible to tension or bending when the slider 16 moves from the midpoint of its stroke to the second end. Constraining and guiding the conductor within this section can effectively prevent the conductor from being overstretched when the slider 16 approaches the second end. At the same time, sufficient slack length is reserved when the slider 16 returns to the midpoint position to avoid tension impact on the conductor at the moment of reversal.

[0074] Of course, for reference Figure 10 The wires of proximity sensor 8 (i.e., sensor wires 10) can also be stored in the arc-shaped mounting part 106, making the entire circuit neater.

[0075] In this embodiment, a wire connector 7 is also installed on the first limiting plate 13, so that the wires of the ultrasonic patch 17, the hub motor 12 and the proximity sensor 8 are all connected to the wire connector 7, and the wire connector 7 is then connected to the ultrasonic controller 6.

[0076] Thus, by integrating the wire connector 7 on the first limiting plate 13 as a unified hub and transfer node for the internal electrical system, the excitation / feedback lines of the ultrasonic patch 17, the power and control lines of the hub motor 12, and the signal lines of the proximity sensor 8 are all gathered nearby inside the ring and reliably connected to the wire connector 7; subsequently, only one multi-core composite cable needs to be led out from the wire connector 7 to connect to the external ultrasonic controller 6.

[0077] This allows multiple distributed wires to be integrated into a single output, significantly reducing the number of cables passing through the hinge or gap of the ring shell and reducing the risk of cable fatigue caused by repeated opening and closing. Moreover, the internal components can be connected to the wire connector 7 during the modular pre-assembly stage, and only the main cable needs to be connected during the assembly of the whole machine, which facilitates production assembly and later maintenance and replacement.

[0078] Of course, in some embodiments, the annular shell can also adopt other structural forms, as long as it can achieve continuous or reciprocating movement of the slider 16 along the circumference of the limb, thereby achieving the core technical objective of dynamically dispersing ultrasonic energy deposition and avoiding local overheating. For example: Integrated closed ring shell: It adopts an integrated ring structure that cannot be opened or closed, with an internal track and drive system. It is suitable for easy-to-penetrate parts such as the extremities (such as the wrist and ankle), and can support the continuous 16° circular motion of the slider, resulting in more uniform energy distribution. Flexible deformable ring shell: made of elastic material or hinged links, it can adapt to limbs of different diameters, allowing the slider 16 to slide along the flexible track while maintaining a close fit, thus balancing adaptability and motion continuity. Multi-segment spliced ​​ring shell: In addition to two-segment, three or more arc-shaped units can be connected by hinges, magnets or buckles to further enhance the ability to cover irregular limb contours (such as knee joints and elbows); Track / trolley type linear ring structure: The ring shell is designed as a frame with a closed-loop guide rail. The slider 16 runs in a loop along the guide rail as a trolley. The driving method can be synchronous belt, gear rack or magnetic drive, which is suitable for high-precision control scenarios.

[0079] While the aforementioned alternatives differ in their specific mechanical implementation, they share a common feature: breaking away from the traditional fixed-point irradiation mode and dynamically changing the ultrasound treatment area through spatial displacement. Therefore, as long as the annular shell structure used can reliably support the slider 16 (or equivalent treatment unit) to complete the predetermined trajectory and meets the requirements of clinical safety, comfort, and ease of operation, it should be considered a reasonable extension of the inventive concept.

[0080] In summary, compared with the prior art, this application has at least the following advantages: 1. Effectively suppress local temperature rise and improve treatment safety: By driving the slider 16 to move the ultrasonic patch 17 dynamically along the circumference of the limb, the ultrasonic energy is dispersed and deposited in space, avoiding heat accumulation caused by long-term action on a fixed point, significantly reducing the risk of skin temperature exceeding the safe threshold (such as 42°C) and reducing the possibility of thermal damage.

[0081] 2. Extend continuous treatment time and improve rehabilitation efficiency: Because the heat load is dynamically distributed, the equipment does not need to be stopped frequently for cooling or the irradiation position needs to be changed manually. It can achieve effective treatment for a longer period of time in a single operation, thereby improving clinical efficiency and patient compliance.

[0082] 3. The structure is openable and closable, with strong adaptability and convenient operation: The ring shell adopts a two-section hinged + magnetic closure design, which makes it easy to quickly fit into limbs of different thicknesses or shapes (such as swollen or joint areas), especially suitable for postoperative or mobility-impaired patients, and is significantly superior to traditional fixed or fully enclosed ring structures.

[0083] 4. Precise and reliable motion control, smooth and low noise operation: The combination of mechanical limit plate and proximity sensor 8 provides dual protection for the 16-stroke slider, automatic reversal avoids hard collisions, reduces mechanical wear and operating noise, and improves equipment life and user comfort.

[0084] 5. Modular electrical integration for easy maintenance: All functional units (ultrasonic patch 17, hub motor 12, sensor) wires are uniformly connected to the wire connector 7 on the first limit plate 13, simplifying wiring, facilitating assembly and troubleshooting, and enhancing waterproof and anti-coupling agent penetration capabilities.

[0085] 6. Compact and efficient drive and support structure: The integrated solution of hub motor 12 + connecting column 19 + support arc plate 105 is adopted to realize direct transmission of driving force and multi-point support of stator shaft, taking into account high rigidity, low friction and easy maintenance, and adapting to the special needs of arc reciprocating motion.

[0086] 7. Reasonable dynamic protection design for cables: The arc-shaped mounting part 106 on the end face provides directional constraint for the moving conductor, avoiding repeated bending and pulling, extending the service life of the cable, and improving the long-term operational reliability of the system.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An ultrasonic main unit head, characterized in that, It includes a ring capsule (2), a ring shell, an ultrasonic patch (17), a slider (16), and a drive unit; The ring bag (2) is used to be placed on the injured limb of the patient, and the inner cavity of the ring bag (2) is used for the insertion or discharge of coupling agent; The annular shell is fitted outside the annular sac (2); The slider (16) is slidably disposed on the annular shell, and one side of the slider (16) is directly opposite to the outer peripheral surface of the annular sac (2); The ultrasonic patch (17) is attached to the side of the slider (16) facing the annular capsule (2) and is in contact with the outer peripheral surface of the annular capsule (2); The driving component is disposed on the annular shell and connected to the slider (16). The driving component is used to drive the slider (16) to make a circular motion along the circumference of the annular shell.

2. The ultrasonic main unit head according to claim 1, characterized in that, The annular shell includes two arcuate components (1); The first ends of the two arc-shaped parts (1) are hinged together, and the second ends are detachably connected; Both of the arc-shaped parts (1) are equipped with a slider (16); Driven by the driving component, the slider (16) can reciprocate along the arc length direction of the arc component (1).

3. The ultrasonic main unit head according to claim 2, characterized in that, The annular shell also includes a first limiting plate (13) and a second limiting plate (131); The two first limiting plates (13) are respectively fixed on the two arc pieces (1) at positions close to the first end, and a gap is left between the two first limiting plates (13); The two second limiting plates (131) are respectively fixed on the two arc pieces (1) at positions near the second end, and the two second limiting plates (131) are in contact with each other; On any of the arc-shaped components (1), the slider (16) is capable of reciprocating between the first limiting plate (13) and the second limiting plate (131).

4. The ultrasonic main unit head according to claim 3, characterized in that, On any of the arc components (1), along the arc length direction of the arc component (1), a proximity sensor (8) is provided on the side opposite to each other of the first limiting plate (13) and the second limiting plate (131). During the process of the driving member driving the slider (16) to slide from one of the first limiting plate (13) or the second limiting plate (131) towards the other, if the proximity sensor (8) detects the slider (16), then the driving member drives the slider (16) to slide from the other of the first limiting plate (13) or the second limiting plate (131) towards one of them.

5. The ultrasonic main unit head according to claim 2, characterized in that, The arc component (1) includes two opposing fixed arc plates (103) and a guide arc plate (104) fixed between the two fixed arc plates (103). Both of the fixed arc plates (103) are fitted outside the annular sac (2); The slider (16) is located in the gap between the guide arc plate (104) and the outer peripheral surface of the ring bag (2).

6. The ultrasonic main unit head according to claim 5, characterized in that, A gap is left between the side edge of the guide arc plate (104) and the fixed arc plate (103); The drive unit includes a hub motor (12) and a connecting column (19). One end of the connecting column (19) is fixedly connected to the side of the slider (16) facing the arc plate; The connecting post (19) passes through the gap between the guide arc plate (104) and the fixed arc plate (103), and the other end of the connecting post (19) is located on the side of the guide arc plate (104) facing away from the annular bag (2); The stator shaft of the hub motor (12) passes through the connecting column (19), and the rotor housing of the hub motor (12) contacts the guide arc plate (104).

7. The ultrasonic main unit head according to claim 6, characterized in that, The other end of the connecting column (19) is provided with an axially extending mounting groove (191), which penetrates the outer peripheral surface of the connecting column (19). The outer circumferential surface of the connecting column (19) is provided with an external thread (192). The drive component also includes a nut (15) that engages with the external thread (192); The stator shaft passes through the mounting groove (191), and the nut (15) is located on the side of the stator shaft away from the bottom of the mounting groove (191).

8. The ultrasonic main unit head according to claim 6, characterized in that, The arc component (1) also includes a supporting arc plate (105). The guide arc plate (104) is connected at an angle to two supporting arc plates (105) on the side facing away from the ring bag (2). The rotor housing is located between the two supporting arc plates (105). The connecting column (19) is located between the supporting arc plate (105) and the fixing arc plate (103). The stator shaft can be slidably rested on the support arc plate (105).

9. The ultrasonic main unit head according to claim 6, characterized in that, The fixed arc plate (103) has an arc-shaped mounting part (106) concentric with itself on its end face. The arc-shaped mounting part (106) is used to fix the wires connected to the hub motor (12) and the ultrasonic patch (17).

10. An ultrasonic therapy device, characterized in that, Includes a peristaltic pump (3), a container (5), an ultrasonic controller (6), and an ultrasonic main unit head as described in any one of claims 1-9; The container (5) is used to store the coupling agent and is connected to the annular capsule (2) via a pipe (4); The peristaltic pump (3) is used to squeeze the pipe (4) to achieve the transfer of coupling agent between the annular sac (2) and the container (5); The ultrasonic controller (6) is electrically connected to the ultrasonic patch (17).

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