Child male genital negative pressure physical therapy equipment

Abstract

The present application relates to a kind of child male external genitalia negative pressure physical therapy equipment, including negative pressure generator, control panel, handle, negative pressure pipeline, negative pressure positioning cylinder, the top front end of negative pressure generator is embedded with control panel Installation. By setting the linkage cooperation of spiral moving mechanism and adhering sealing mechanism, rotating block can drive multiple groups of folding structure centripetal motion simultaneously, push silicone adhering pad to be evenly folded, so that the individual size difference of different age groups of children external genitalia is adjusted steplessly, so that the sealing positioning structure can be closely adhered to the root of different thickness external genitalia, both ensure the reliable sealing of negative pressure chamber, also avoid excessive extrusion to tender tissue of children, substantially improve the age adaptation range and treatment safety of equipment.

Description

Technical Field

[0001] This invention relates to the field of technology, specifically to a negative pressure physical therapy device for male genitalia in children. Background Technology

[0002] Abnormal development or dysfunction of the male external genitalia in children is a relatively common disease type in pediatric urology and andrology. In addition to surgical treatment, negative pressure physical therapy is widely used as a non-invasive conservative treatment method to promote blood flow to the corpora cavernosa of the external genitalia, improve local blood circulation, and stimulate tissue growth and development. Negative pressure therapy equipment creates a controllable negative pressure environment, causing the corpora cavernosa of the external genitalia to passively swell and expand under negative pressure suction, thereby achieving the therapeutic goals of physical stretching and promoting development.

[0003] Currently, most negative pressure therapy devices on the market are designed for adult men, with the size of the treatment cylinder, sealing structure, and negative pressure parameters all set based on the average physiological size of adult external genitalia. However, children's external genitalia have characteristics such as a large size range, delicate tissues, thin stratum corneum of skin, and sensitivity to pressure and friction. Directly using adult devices to treat children presents the following problems:

[0004] First, the existing equipment has a fixed treatment tube diameter and a simple sealing structure, making it impossible to adapt to the actual size of a child's external genitalia. If the seal is too tight during treatment, it can easily cause excessive compression damage or even ischemia to the child's delicate tissues; if the seal is too loose, an effective negative pressure environment cannot be established, leading to treatment failure.

[0005] Secondly, the existing equipment's sealing adjustment mechanism is complex to operate, usually requiring tools for disassembly and adjustment, and has low adjustment precision, making it difficult to make fine adjustments during treatment and failing to meet the personalized treatment needs of different children.

[0006] Third, the sealing components of existing equipment are mostly made of hard rubber or ordinary plastic, which have poor fit and low comfort when in contact with the skin of children's external genitalia. They are prone to friction due to the expansion and displacement of the external genitalia during negative pressure suction, causing pain or resistance in children, affecting the smooth progress of treatment and compliance.

[0007] Fourth, existing equipment lacks the function of real-time observation of the external genitalia during treatment, and the sealing performance is not stable enough, with negative pressure leakage occurring from time to time. This not only affects the treatment effect, but may also pose a safety hazard to children due to negative pressure fluctuations.

[0008] To address the aforementioned issues, there is an urgent need to develop a negative pressure physical therapy device specifically designed for children's male external genitalia. This device should be able to provide safe, comfortable, and precise sealing adjustments based on the individual size of each child, ensuring the effectiveness and safety of the treatment. Summary of the Invention

[0009] The purpose of this application is to provide a negative pressure physical therapy device for the male external genitalia of children.

[0010] In the first aspect, the negative pressure physical therapy equipment for male genitalia provided in this application adopts the following technical solution: it includes a negative pressure generator, a control panel, a handle, a negative pressure pipe, and a negative pressure positioning cylinder. The control panel is embedded in the top front end of the negative pressure generator. The negative pressure generator is fixed to the bottom of the handle. The negative pressure generator is connected to the top of the negative pressure positioning cylinder via a negative pressure pipe. The negative pressure positioning cylinder includes a negative pressure cylinder, a connector, a sealing positioning structure, and a negative pressure chamber. The connector is connected to the top of the negative pressure cylinder and is connected to the negative pressure pipe. A negative pressure chamber is provided inside the negative pressure cylinder, and a sealing positioning structure is embedded in the bottom of the negative pressure chamber.

[0011] By adopting the above technical solution, the negative pressure generated by the negative pressure generator is transmitted to the negative pressure chamber of the negative pressure positioning cylinder through the negative pressure pipeline. The sealed positioning structure can be adaptively adjusted according to the size differences of the external genitalia of children of different ages, ensuring that the negative pressure chamber forms a closed negative pressure environment, thereby achieving safe and effective negative pressure physical therapy for children's external genitalia.

[0012] Preferably, the sealing and positioning structure includes a connecting cylinder, an external thread, a limiting block, a spiral moving mechanism, a sealing and bonding mechanism, and a silicone bonding pad. The upper end of the connecting cylinder is provided with an external thread, which engages with the inner thread of the negative pressure chamber. The lower end of the external thread is fixed with a limiting block. The outer thread of the connecting cylinder is engaged with a spiral moving mechanism. The sealing and bonding mechanism is installed inside the connecting cylinder, and a silicone bonding pad is fixedly bonded to the middle of the sealing and bonding mechanism.

[0013] By adopting the above technical solution, the connecting cylinder is detachably connected to the negative pressure chamber through external threads, which facilitates cleaning and replacement of parts; the spiral moving mechanism can move along the axis of the connecting cylinder, driving the fitting and sealing mechanism to move, so that the silicone fitting pad can be contracted or expanded according to the specific size of the child's external genitalia, achieving personalized sealing and fitting, which not only ensures the effect of negative pressure treatment, but also avoids excessive compression or damage to the genitals.

[0014] Preferably, the connecting cylinder has through holes at both the top and bottom, and the inner walls of the through holes are covered with silicone pads.

[0015] By adopting the above technical solution, the upper and lower through holes of the connecting tube facilitate the passage of the external genitalia into the negative pressure chamber. The silicone pad covering the inner wall of the through hole has good flexibility and biocompatibility, which can effectively buffer the friction and pressure between the external genitalia and the edge of the through hole of the connecting tube during treatment, thereby improving the comfort and safety of children during use.

[0016] Preferably, the spiral moving mechanism includes a spiral block, a bearing seat, and a moving block. The spiral block is threadedly engaged with the outer wall of the connecting cylinder, and the spiral block is movably connected to the outer side of the bearing seat. The moving block is fixed in the middle of the bearing seat, and a sealing mechanism is connected to the middle of the moving block.

[0017] By adopting the above technical solution, when the user rotates the rotating block, the rotating block moves along the axial direction of the connecting cylinder due to the threaded engagement between the rotating block and the outer wall of the connecting cylinder. The moving block moves synchronously through the bearing seat, thereby driving the fitting and sealing mechanism to move, achieving stepless adjustment. The operation is simple and the adjustment is precise. Medical staff or parents can make fine adjustments according to the child's actual feelings, improving the personalization and comfort of the treatment.

[0018] Preferably, sealing rings are provided on both the upper and lower sides of the rotating block for sealing against the outer wall of the connecting cylinder.

[0019] By adopting the above technical solution, the sealing rings on the upper and lower sides of the rotating block can always maintain a tight seal with the outer wall during the rotation and movement of the rotating block along the outer wall of the connecting cylinder, effectively preventing external air from entering the negative pressure chamber through the threaded fit gap, ensuring the airtightness of the negative pressure chamber and guaranteeing the accuracy and continuity of the negative pressure value during treatment.

[0020] Preferably, the sealing mechanism includes a first sealing ring, a first movable block, a first movable arm, a second movable arm, a second movable block, a second sealing ring, and a movable top block. The first sealing ring is installed on the inner side of the connecting cylinder and moves synchronously with the movable block. The upper end of the first sealing ring is embedded with the first movable block. The first movable block is movably connected to the lower end of the first movable arm. The lower ends of the first movable arm and the second movable arm are movably connected. The second movable arm is movably connected to the inner side of the second movable block. The second movable block is installed on the inner side of the lower end of the second sealing ring. The movable top block is movably connected at the connection between the first movable arm and the second movable arm, and the end wall of the movable top block is in contact with the silicone adhesive pad, which is used to push the silicone adhesive pad toward the middle of the connecting cylinder and fit with the external genitalia.

[0021] By adopting the above technical solution, when the moving block moves up and down, it drives the first sealing ring to slide along the inner wall of the connecting cylinder. The first and second movable arms deflect in conjunction, pushing the moving top block radially towards the center of the connecting cylinder, thereby pushing the silicone pad towards the root of the external genitalia and tightly adhering to the skin, achieving uniform circumferential sealing. At the same time, the first and second sealing rings themselves also play a double sealing role, further enhancing the overall airtightness and ensuring the effect of negative pressure treatment.

[0022] Preferably, the first movable block, the first movable arm, the second movable arm, the second movable block, and the movable top block form a retractable structure, and multiple sets of the retractable structure are provided, which are circumferentially distributed along the interval between the first sealing ring and the second sealing ring.

[0023] By adopting the above technical solution, multiple sets of closing structures are evenly distributed circumferentially along the interval between the first sealing ring and the second sealing ring, so that when the moving top block pushes the silicone bonding pad, it can simultaneously close inward from multiple directions, forming a uniform and gentle circumferential fit on the child's external genitalia, avoiding sealing failure or local pressure discomfort caused by uneven force on one side, and greatly improving the reliability of the seal and the comfort of use.

[0024] Preferably, the structure of the first sealing ring matches the structure of the second sealing ring, and the first sealing ring and the second sealing ring are arranged parallel to each other and are both circular.

[0025] By adopting the above technical solution, the first sealing ring and the second sealing ring are structurally matched and arranged in parallel with each other, together forming a double-ring sealing structure. When the sealing mechanism is in operation, they can move and position synchronously, which not only enhances the stability of the seal, but also makes the force on the silicone bonding pad more uniform during the closing process, avoiding the problem of sealing gaps or loose bonding caused by misalignment of the sealing rings.

[0026] Preferably, the inner wall of the first sealing ring is provided with a silicone gasket, and the inner wall of the silicone gasket is provided with an arc-shaped protrusion.

[0027] By adopting the above technical solution, the silicone pad on the inner wall of the first sealing ring can further buffer the rigid contact between the external genitalia and the inner wall of the sealing ring. The arc-shaped protrusion on the inner wall of the silicone pad generates slight friction and elastic deformation when in contact with the skin of the external genitalia. This not only helps to enhance the sealing effect and prevent negative pressure leakage, but also promotes local blood circulation. At the same time, the arc design avoids sharp edges from irritating the skin, thus improving the safety and comfort of children during treatment.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] 1. By setting up the linkage between the spiral movement mechanism and the sealing mechanism, the rotating block can drive multiple sets of retracting structures to move synchronously towards the center, pushing the silicone sealing pad to retract evenly. This allows for stepless adjustment according to the individual size differences of the external genitalia of children of different ages, so that the sealing and positioning structure can closely fit the base of the external genitalia of different thicknesses. This ensures the reliable sealing of the negative pressure chamber and avoids excessive compression of the child's delicate tissues, greatly improving the age adaptability range of the equipment and the safety of treatment.

[0030] 2. By adopting a design in which multiple sets of gathering structures are evenly distributed circumferentially along the interval between the first and second sealing rings, the multiple sets of linkage mechanisms can simultaneously push the silicone pad from multiple points in the circumferential direction when they act synchronously, forming a uniform wrap-around fit to the base of the child's external genitalia. This effectively avoids excessive local pressure or sealing gaps caused by uneven force on one side, significantly improves fit comfort and sealing reliability, and reduces the risk of pain or tissue damage to the child caused by local pressure.

[0031] 3. In this application, the first sealing ring and the second sealing ring constitute a parallel double-ring sealing structure. With the silicone pad and its arc-shaped protrusion on the inner wall of the first sealing ring, during the negative pressure suction process, the double sealing can ensure the airtight stability of the negative pressure chamber, prevent negative pressure leakage and treatment fluctuations, and the elastic deformation of the flexible silicone and the micro-friction of the arc-shaped protrusion can enhance the sealing effect while buffering the contact stress between the external genitalia and the rigid components, promoting local blood circulation, and improving the comfort and safety of children's treatment.

[0032] 4. By using transparent medical-grade polycarbonate material to make the negative pressure cylinder, medical staff can easily observe the congestion status and positional changes of the child's external genitalia in the negative pressure chamber in real time during treatment, and promptly detect abnormalities. At the same time, the spiral moving mechanism is easy to operate, and the tightness of the seal can be adjusted at any time before, during, or after treatment without tools. Combined with the control panel for precise setting of negative pressure value, it realizes precise control of treatment parameters, improving treatment compliance and clinical operability. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the negative pressure positioning cylinder of the present invention;

[0035] Figure 3 This is a schematic diagram of the cross-sectional structure of the negative pressure positioning cylinder of the present invention;

[0036] Figure 4 This is a schematic cross-sectional view of the sealing and positioning structure of the present invention;

[0037] Figure 5 This is a schematic diagram of the sealing and positioning structure in motion state of the present invention;

[0038] Figure 6 This is a schematic cross-sectional view of the spiral movement mechanism of the present invention;

[0039] Figure 7 This is a schematic cross-sectional view of the sealing mechanism of the present invention;

[0040] Figure 8This is a three-dimensional structural diagram of the first sealing ring of the present invention.

[0041] In the diagram: Negative pressure generator-1, Control panel-2, Handle-3, Negative pressure pipeline-4, Negative pressure positioning cylinder-5, Negative pressure cylinder-51, Connector-52, Sealing positioning structure-53, Negative pressure chamber-54, Connecting cylinder-531, External thread-532, Limiting block-533, Spiral moving mechanism-534, Fitting sealing mechanism-535, Silicone fitting pad-536, Rotating block-5341, Bearing seat-5342, Moving block-5343, First sealing ring-5351, First movable block-5352, First movable arm-5353, Second movable arm-5354, Second movable block-5355, Second sealing ring-5356, Moving top block-5357, Silicone protective pad-53511, Protrusion-53512. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0043] Example 1: A negative pressure physical therapy device for male genitalia in children, referring to... Figures 1-3 It includes a negative pressure generator 1, a control panel 2, a handle 3, a negative pressure pipe 4, and a negative pressure positioning cylinder 5.

[0044] Negative pressure generator 1 serves as the negative pressure source for this equipment. Internally, it contains a negative pressure pump, a gas storage tank, and a control circuit board (not shown in the figure). A control panel 2 is embedded in the top front of negative pressure generator 1. Control panel 2 includes a display screen, a start button, a pause button, a negative pressure adjustment knob, and a timer knob. These are used to set and display the negative pressure value and treatment time during the treatment process, facilitating parameter adjustment by medical personnel or parents according to the child's specific condition. Negative pressure generator 1 is fixed to the bottom of a handle 3. The handle 3 has an inverted U-shaped structure, allowing the user to easily lift and move the entire equipment with one hand, improving portability and ease of use. The negative pressure output end of negative pressure generator 1 is connected to the top of negative pressure positioning cylinder 5 via a negative pressure pipe 4. The negative pressure pipe 4 is a medical-grade silicone flexible tube with good flexibility and airtightness, capable of stably transmitting the negative pressure generated by negative pressure generator 1 to negative pressure positioning cylinder 5.

[0045] The negative pressure positioning cylinder 5 includes a negative pressure cylinder 51, a connector 52, a sealing positioning structure 53, and a negative pressure chamber 54. The negative pressure cylinder 51 is a cylindrical shell made of transparent medical-grade polycarbonate (PC) material. Its high transparency and mechanical strength allow medical personnel to observe the child's external genitalia in real time within the negative pressure chamber 54 during treatment, enabling timely detection and intervention of any problems. The top of the negative pressure cylinder 51 is integrally formed or sealed with the connector 52, which is pipe-joint shaped and connects to the negative pressure pipe 4, serving as the inlet for negative pressure introduction. The interior of the negative pressure cylinder 51 is hollow, forming the negative pressure chamber 54, which provides a sealed space for negative pressure therapy. The bottom of the negative pressure chamber 54 is embedded with the sealing positioning structure 53, which achieves a circumferential seal between the bottom opening of the negative pressure chamber 54 and the base of the child's external genitalia, preventing negative pressure leakage. It also allows for adaptive positioning based on the different body shapes of children.

[0046] Reference Figures 4-6 The sealing and positioning structure 53 includes a connecting cylinder 531, an external thread 532, a limiting block 533, a spiral moving mechanism 534, a bonding and sealing mechanism 535, and a silicone bonding pad 536.

[0047] The connecting cylinder 531 is a cylindrical component that runs vertically through the cylinder, made of medical-grade polycarbonate (PC), serving as the supporting framework for the entire sealing and positioning structure 53. The upper outer wall of the connecting cylinder 531 is provided with an external thread 532, which engages with the inner threaded hole at the bottom of the negative pressure chamber 54, thereby achieving a detachable and fixed connection between the sealing and positioning structure 53 and the negative pressure cylinder 51. This threaded connection facilitates the quick assembly and disassembly of the sealing and positioning structure 53, making post-treatment cleaning, disinfection, and component replacement convenient. A limiting block 533 is fixed to the lower end of the external thread 532. The limiting block 533 is an annular flange protruding radially along the outer wall of the connecting cylinder 531, used to limit the maximum upward stroke of the spiral moving mechanism 534, preventing the spiral block 5341 from unscrewing from the upper end of the external thread 532 and causing the mechanism to detach.

[0048] The connecting cylinder 531 is threadedly fitted with a helical moving mechanism 534. The helical moving mechanism 534 includes a rotating block 5341, a bearing seat 5342, and a moving block 5343. The rotating block 5341 is annular in shape, with internal threads on its inner wall that engage with the threaded outer wall of the connecting cylinder 531. The outer wall of the rotating block 5341 is provided with anti-slip knurling or raised ridges to facilitate rotation by the user's fingers. The rotating block 5341 is movably connected to the outer side of the bearing seat 5342.

[0049] Specifically, the bearing housing 5342 is sleeved on the outer periphery of the connecting cylinder 531. The upper end face of the rotating block 5341 is rotatably connected to the lower end face of the bearing housing 5342 through a thrust bearing, so that when the rotating block 5341 rotates around the connecting cylinder 531, the bearing housing 5342 does not rotate with it but only moves up and down along the axial direction of the connecting cylinder 531. A movable block 5343 is fixed in the middle of the bearing housing 5342. The movable block 5343 is an annular slider sleeved on the outer wall of the connecting cylinder 531, and its inner wall is slidably engaged with the outer wall of the connecting cylinder 531. The middle part (i.e., the inner end) of the movable block 5343 passes through the axial groove opened on the cylinder wall of the connecting cylinder 531 and is fixedly connected to the sealing mechanism 535, thereby transmitting the axial movement of the bearing housing 5342 to the sealing mechanism 535.

[0050] The connecting cylinder 531 has an internal sealing mechanism 535. A silicone sealing pad 536 is fixedly attached to the center of the sealing mechanism 535. The silicone sealing pad 536 is a ring-shaped sheet structure made of medical-grade silicone material, which has good biocompatibility, flexibility and elasticity. Its inner diameter is larger than the diameter of the child's external genitalia in its natural state. When pushed by the sealing mechanism 535, it can retract concentrically until it fits tightly against the skin at the base of the external genitalia.

[0051] The connecting tube 531 has through holes at both the top and bottom. The upper through hole allows the child's external genitalia to enter the negative pressure chamber 54, and the lower through hole allows the external genitalia to exit. The inner walls of the through holes of the connecting tube 531 are covered with silicone pads. The silicone pads are made of flexible medical-grade silicone material, which can effectively buffer the friction and compression between the external genitalia and the rigid edge of the through hole of the connecting tube, avoiding cutting or friction damage to the edge of the through hole due to the expansion of the external genitalia during negative pressure suction, thus improving the safety of treatment.

[0052] Sealing rings, specifically O-ring silicone seals, are provided on both the upper and lower sides of the rotating block 5341. These seals are fitted into sealing grooves on the inner wall of the rotating block 5341 to ensure a tight seal with the outer wall of the connecting cylinder 531. As the rotating block 5341 rotates along the outer wall of the connecting cylinder 531, the sealing rings maintain a dynamic seal, effectively preventing external air from entering the negative pressure chamber 54 through the threaded fit between the rotating block 5341 and the connecting cylinder 531. This ensures the stable airtightness of the negative pressure chamber 54 and guarantees the accuracy and continuity of the negative pressure value during treatment.

[0053] Reference Figures 7-8 The sealing mechanism 535 includes a first sealing ring 5351, a first movable block 5352, a first movable arm 5353, a second movable arm 5354, a second movable block 5355, a second sealing ring 5356, and a movable top block 5357.

[0054] The first sealing ring 5351 is installed inside the connecting cylinder 531, and the outer wall of the first sealing ring 5351 is fixedly connected to the inner end of the moving block 5343, so that the first sealing ring 5351 moves synchronously with the moving block 5343 along the axial direction of the connecting cylinder 531. The first sealing ring 5351 is a circular ring-shaped component, and its inner wall is provided with a silicone pad 53511. The inner wall of the silicone pad 53511 is provided with arc-shaped protrusions 53512. The protrusions 53512 are multiple arc-shaped ridges distributed circumferentially along the inner wall of the silicone pad 53511. When in contact with the skin of the external genitalia, they can generate slight friction and elastic deformation, which helps to enhance the sealing effect, prevent negative pressure leakage, and promote local blood circulation. At the same time, the arc-shaped surface avoids the irritation of the skin by sharp edges.

[0055] A first movable block 5352 is embedded in the upper end face of the first sealing ring 5351. Multiple first movable blocks 5352 are evenly distributed circumferentially along the upper end face of the first sealing ring 5351. The first movable block 5352 is movably connected to the lower end of the first movable arm 5353 via a pin. The first movable arm 5353 is movably connected to the lower end of the second movable arm 5354 via a pin. The second movable arm 5354 is movably connected to the inner side of the second movable block 5355 via a pin. The second movable block 5355 is installed on the lower inner side of the second sealing ring 5356, also evenly distributed circumferentially. The second sealing ring 5356 is fixedly installed on the upper inner side of the connecting cylinder 531 and does not move with the movable block 5343. Its structure matches the structure of the first sealing ring 5351, and the first sealing ring 5351 and the second sealing ring 5356 are arranged parallel to each other, both being annular in shape. The first sealing ring 5351 and the second sealing ring 5356 together form a double-ring sealing structure, which enhances the stability and reliability of the seal.

[0056] A movable top block 5357 is movably connected at the connection point of the first movable arm 5353 and the second movable arm 5354 (i.e., the node where they are hinged by a pin). The movable top block 5357 is a radially extending rod or plate-shaped component, with its outer end hinged to the connection node of the first movable arm 5353 and the second movable arm 5354, and its inner end in contact with the outer wall of the silicone adhesive pad 536. When the first sealing ring 5351 moves upward, the lower end of the first movable arm 5353 moves upward accordingly, while the upper end of the second movable arm 5354 is limited by the fixed second sealing ring 5356. This causes the hinge node of the first movable arm 5353 and the second movable arm 5354 to deflect radially inward toward the connecting cylinder 531, thereby pushing the movable top block 5357 toward the middle of the connecting cylinder 531, and further pushing the silicone adhesive pad 536 to retract toward the middle, thus adhering to the base of the external genitalia.

[0057] The first movable block 5352, the first movable arm 5353, the second movable arm 5354, the second movable block 5355, and the movable top block 5357 together form a retractable structure, which is essentially a four-bar linkage mechanism. Multiple sets of the retractable structure (preferably 4-8 sets) are evenly distributed circumferentially along the interval between the first sealing ring 5351 and the second sealing ring 5356. When multiple sets of the retractable structure operate simultaneously, they can synchronously push the silicone adhesive pad 536 centripetally from multiple directions, forming a uniform and gentle circumferential fit around the base of the child's external genitalia, avoiding seal failure or localized pressure discomfort caused by uneven force on one side.

[0058] Working principle and usage:

[0059] Before using this equipment, first, according to the child's body size and external genitalia dimensions, unscrew the sealing positioning structure 53 from the negative pressure cylinder 51, allowing the child's external genitalia to pass through the lower end through hole and exit through the upper end through hole of the connecting cylinder 531. Then, screw the sealing positioning structure 53 into the bottom of the negative pressure chamber 54 through the external thread 532, so that the bottom of the negative pressure cylinder 51 forms a preliminary position with the child's perineum. Next, the user rotates the rotating block 5341 by hand. The rotating block 5341 moves upward axially through the thread engagement with the outer wall of the connecting cylinder 531. The rotating block 5341 drives the moving block 5343 to move upward synchronously through the bearing seat 5342. The moving block 5343 drives the first sealing ring 5351 to slide upward along the inner wall of the connecting cylinder 531. When the first sealing ring 5351 moves upward, it pushes the lower end of the first movable arm 5353 upward through the first movable block 5352. Since the second sealing ring 5356 is fixed, the upper end of the second movable arm 5354 is limited, causing the hinge joint between the first movable arm 5353 and the second movable arm 5354 to deflect radially inward, pushing the moving top block 5357 to move centripetally. Multiple sets of retracting structures move synchronously, retracting the silicone adhesive pad 536 from multiple directions towards the center at the same time, until the inner wall of the silicone adhesive pad 536 is tightly adhered to the skin at the base of the child's external genitalia. At this point, the sealing and positioning structure 53 completes the airtight seal of the bottom of the negative pressure chamber 54.

[0060] After sealing, the required negative pressure value and treatment time are set via control panel 2. The negative pressure generator 1 is activated, and the negative pressure pump begins operation, transmitting negative pressure to the negative pressure chamber 54 through negative pressure pipe 4. Under negative pressure, the child's external genitalia passively erect due to the engorgement of the corpora cavernosa and are pulled by the negative pressure, achieving the purpose of physical therapy. Throughout the treatment process, the transparent negative pressure cylinder 51 facilitates observation of the external genitalia's condition. The cooperation of the silicone sealing pad 536 and the sealing ring ensures the airtightness of the negative pressure chamber 54. The silicone pad 53511 and the arc-shaped protrusion 53512 on the inner wall of the first sealing ring 5351 further enhance the sealing effect and user comfort.

[0061] After treatment, the negative pressure generator 1 is turned off via control panel 2, and the negative pressure in the negative pressure chamber 54 is gradually released to normal pressure. The rotating block 5341 is rotated in the opposite direction, causing the first sealing ring 5351 to move downwards, resetting the collapsible structure, and causing the silicone adhesive pad 536 to expand outwards and loosen its adhesion to the external genitalia. Then, the sealing positioning structure 53 is unscrewed from the bottom of the negative pressure chamber 54, and the negative pressure positioning cylinder 5 is removed from the child's external genitalia, completing one treatment session. After use, the sealing positioning structure 53 can be removed from the negative pressure cylinder 51, and all components can be cleaned and disinfected for future use.

[0062] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A negative pressure physical therapy device for the male external genitalia of children, characterized in that: The device includes a negative pressure generator (1), a control panel (2), a handle (3), a negative pressure pipe (4), and a negative pressure positioning cylinder (5). The control panel (2) is embedded in the top front end of the negative pressure generator (1). The negative pressure generator (1) is fixed to the bottom of the handle (3). The negative pressure generator (1) is connected to the top of the negative pressure positioning cylinder (5) via the negative pressure pipe (4). The negative pressure positioning cylinder (5) includes a negative pressure cylinder (51), a connector (52), a sealing positioning structure (53), and a negative pressure chamber (54). The connector (52) is connected to the top of the negative pressure cylinder (51). The connector (52) is connected to the negative pressure pipe (4). The negative pressure chamber (54) is provided inside the negative pressure cylinder (51). The sealing positioning structure (53) is embedded in the bottom of the negative pressure chamber (54).

2. The negative pressure physical therapy equipment for male genitalia of children according to claim 1, characterized in that: The sealing and positioning structure (53) includes a connecting cylinder (531), an external thread (532), a limiting block (533), a spiral moving mechanism (534), a sealing and bonding mechanism (535), and a silicone bonding pad (536). The upper end of the connecting cylinder (531) is provided with an external thread (532), which is engaged with the inner thread of the negative pressure chamber (54). The lower end of the external thread (532) is fixed with a limiting block (533). The outer thread of the connecting cylinder (531) is engaged with a spiral moving mechanism (534). The sealing and bonding mechanism (535) is installed inside the connecting cylinder (531), and a silicone bonding pad (536) is fixedly bonded to the middle of the sealing and bonding mechanism (535).

3. The negative pressure physical therapy equipment for male genitalia of children according to claim 2, characterized in that: The connecting cylinder (531) has through holes at both the top and bottom, and the inner walls of the through holes of the connecting cylinder (531) are covered with silicone pads.

4. The negative pressure physical therapy equipment for male genitalia of children according to claim 2, characterized in that: The spiral moving mechanism (534) includes a spiral block (5341), a bearing seat (5342), and a moving block (5343). The spiral block (5341) is threadedly engaged with the outer wall of the connecting cylinder (531). The spiral block (5341) is movably connected to the outer side of the bearing seat (5342). The moving block (5343) is fixed in the middle of the bearing seat (5342). The moving block (5343) is connected to a sealing mechanism (535) in the middle.

5. The negative pressure physical therapy equipment for male genitalia of children according to claim 4, characterized in that: The upper and lower sides of the rotating block (5341) are provided with sealing rings for sealing against the outer wall of the connecting cylinder (531).

6. The negative pressure physical therapy equipment for male genitalia of children according to claim 4, characterized in that: The sealing mechanism (535) includes a first sealing ring (5351), a first movable block (5352), a first movable arm (5353), a second movable arm (5354), a second movable block (5355), a second sealing ring (5356), and a movable top block (5357). The first sealing ring (5351) is installed inside the connecting cylinder (531), and the first sealing ring (5351) moves synchronously with the movable block (5343). The upper end of the first sealing ring (5351) is embedded with the first movable block (5352), and the lower ends of the first movable block (5352) and the first movable arm (5353) are connected. The first movable arm (5353) is movably connected to the lower end of the second movable arm (5354), and the second movable arm (5354) is movably connected to the inner side of the second movable block (5355). The second movable block (5355) is installed on the inner side of the lower end of the second sealing ring (5356). A movable top block (5357) is movably connected at the connection between the first movable arm (5353) and the second movable arm (5354), and the end wall of the movable top block (5357) is in contact with the silicone adhesive pad (536) to push the silicone adhesive pad (536) toward the middle of the connecting cylinder (531) and to fit with the external genitalia.

7. The negative pressure physical therapy equipment for male genitalia of children according to claim 6, characterized in that: The first movable block (5352), the first movable arm (5353), the second movable arm (5354), the second movable block (5355), and the movable top block (5357) form a retractable structure, and multiple sets of the retractable structure are provided, which are circumferentially distributed along the interval between the first sealing ring (5351) and the second sealing ring (5356).

8. The negative pressure physical therapy equipment for male genitalia of children according to claim 6, characterized in that: The structure of the first sealing ring (5351) matches the structure of the second sealing ring (5356), and the first sealing ring (5351) and the second sealing ring (5356) are arranged parallel to each other and are both circular.

9. A negative pressure physical therapy device for male genitalia in children according to claim 6, characterized in that: The inner wall of the first sealing ring (5351) is provided with a silicone gasket (53511), and the inner wall of the silicone gasket (53511) is provided with an arc-shaped protrusion (53512).

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