Auricle local pressure device after auricle false cyst puncture

Abstract

The application discloses a kind of auricle false cyst puncture post-auricle local pressurization device in the field of medical auxiliary instrument, including ear shell plate and compression plate, support is arranged between ear shell plate and compression plate, compression chamber is opened in the side close to ear shell plate of compression plate, elastic pressure pad is arranged in compression chamber, and air pressure maintaining mechanism is communicated in compression chamber, and air pressure maintaining mechanism is used to maintain the air pressure in compression chamber in preset interval.The application can provide stable and uniform pressure, the pressure size is controllable and can be maintained, and improve treatment effect.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary devices, specifically a device for applying local pressure to the auricle after puncture of a pseudocyst of the auricle. Background Technology

[0002] Auricular pseudocysts are a common otolaryngological condition, which are essentially sterile serous accumulations between the cartilages of the auricle. Although not a serious condition, it is prone to recurrence if not properly treated, severely affecting the patient's appearance and potentially leading to secondary infections and auricular deformities (such as "cauliflower ear").

[0003] Currently, the standard clinical treatment for auricular pseudocysts is "puncture and aspiration + local pressure." The principle is as follows: Puncture and aspiration: draining the accumulated serous fluid from the cyst cavity and eliminating the cyst. Local pressure: applying continuous, even, and appropriate pressure to the affected area of ​​the auricle after puncture. The core purpose is to ensure close adhesion between the cartilaginous walls on both sides of the auricle and the skin, eliminating dead space, thereby inhibiting the re-exudation of serous fluid and promoting adhesion and healing of the cartilaginous walls. Therefore, effective and reliable local pressure is a crucial factor in determining the success of treatment and preventing recurrence.

[0004] In clinical practice, to achieve postoperative compression, doctors have long relied on simple compression devices such as specialized auricular compression clips. Some simple specialized instruments also exist on the market, typically consisting of two clips connected by a screw or spring, resembling a clamp, and are used to hold the affected area on the auricle. The pressure point of these clips is concentrated at the contact area between the two rigid clips, creating a "point-like" or "small-area" linear compression. The auricle surface has a complex curved shape, and the rigid clips cannot adaptively conform, causing pressure to concentrate at local high points. Excessive pressure can easily cause ischemia, pressure injury, and even cartilage necrosis of the skin and perichondrium, while the periphery of the cyst may lack sufficient pressure, forming new dead spaces and leading to treatment failure. Furthermore, during treatment, as tissue edema subsides, the initially set pressure gradually weakens, failing to adapt dynamically and requiring frequent adjustments.

[0005] Given the shortcomings of existing technologies, there is an urgent need for a new type of auricular local pressure device that can provide stable and uniform pressure, with controllable and maintainable pressure, thereby achieving truly efficient, comfortable and reliable treatment and fundamentally improving the cure rate of auricular pseudocysts. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a device for applying local pressure to the auricle after puncture of auricular pseudocysts, which is used to achieve uniform pressure and improve the treatment effect.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: a local pressure device for auricular auricle after puncture of a pseudocyst of auricle, comprising an auricular plate and a pressure plate, a bracket provided between the auricular plate and the pressure plate, a pressure cavity provided on the side of the pressure plate near the auricular plate, an elastic pressure pad provided in the pressure cavity, and a pressure maintaining mechanism connected to the pressure cavity, the pressure maintaining mechanism being used to maintain the pressure in the pressure cavity within a preset range.

[0008] The technical principle of the above solution is as follows: The core design of the device is to use an inflatable elastic pad and an air pressure maintenance mechanism to achieve uniform and stable pressure on the diseased area of ​​the auricle.

[0009] The device includes an auricular plate (worn on the outer side of the auricle) and a pressure plate (near the inner side of the auricle). The pressure plate has a pressure cavity with an elastic pad inside. When gas is injected into the pressure cavity through a pneumatic pressure maintenance mechanism, the elastic pad expands, conforming to the complex curved shape of the auricle and applying pressure to the cyst area. This design avoids the "point-like" pressure of rigid clips, instead creating a "surface-like" contact that distributes pressure evenly.

[0010] The pressure maintenance mechanism continuously monitors and adjusts the air pressure within the compression chamber, maintaining it within a preset range. Even as treatment progresses, tissue edema subsides, or patient activity causes changes in the shape of the auricle, the mechanism automatically adjusts the gas volume to ensure constant pressure, eliminating the pressure decay problem of traditional devices.

[0011] The above approach has the following beneficial effects:

[0012] 1. This solution utilizes the softness and deformability of the elastic pressure pad to perfectly conform to the curvature of the auricle, distributing pressure evenly throughout the cyst area and avoiding localized high-pressure points (such as "point-like" compression) caused by rigid clips. This effectively prevents skin ischemia, pressure injury, or cartilage necrosis, while ensuring sufficient pressure on the cyst's periphery, eliminating dead space, and reducing the risk of recurrence.

[0013] 2. This treatment method can automatically respond to tissue changes (such as the reduction of edema), maintain constant pressure, ensure continuous adhesion of the cartilage wall, and promote healing. This adaptive capability reduces the number of interventions required by medical staff and improves treatment efficiency.

[0014] 3. This solution reduces pain and discomfort through even pressure distribution, making patients more willing to cooperate with treatment. At the same time, the device design may be lighter and more discreet, improving the wearing experience.

[0015] Furthermore, the air pressure maintaining mechanism includes an outer casing with a cavity inside, which is connected to a compression chamber. A mechanical sensing mechanism is installed along the communication path between the cavity and the compression chamber. The mechanical sensing mechanism is used to control the connection and disconnection between the cavity and the compression chamber based on the air pressure change in the compression chamber. A squeezing mechanism is also installed inside the cavity to pressurize the gas inside the cavity.

[0016] Beneficial effects: At the start of treatment, medical personnel inject gas into the cavity while simultaneously pressurizing it using a compression mechanism. This pressure is transmitted to the compression chamber via a connecting tube, causing the elastic pressure pad to expand and apply the initial pressure required for treatment to the auricle. The mechanical sensing mechanism is preset to a specific pressure threshold (i.e., a "preset range"). When the pressure within the compression chamber reaches this threshold, the sensing mechanism triggers an action that disconnects the connection between the cavity and the compression chamber. At this point, the system reaches initial equilibrium.

[0017] During treatment, if the pressure within the compression chamber decreases below a preset threshold due to factors such as the reduction of tissue edema, minor gas leakage, or slight changes in the shape of the auricle, the mechanical sensing mechanism will respond to this pressure change by reopening the connection between the cavity and the compression chamber. Once the connection is open, the cavity, which has been maintained under pressure by the compression mechanism, will immediately replenish the compression chamber with gas until the pressure within the compression chamber reaches the preset threshold again, at which point the sensing mechanism will close the connection once more. This process is automatic and continuous, forming a closed-loop negative feedback system that ensures the pressure within the compression chamber remains dynamically stable within a preset range.

[0018] Regardless of the duration of wear or changes in tissue, the device automatically maintains pressure within the set optimal treatment range. This ensures continuous, stable, and effective adhesion to the anterior and posterior walls of the auricular cartilage throughout the healing process, greatly inhibiting serous re-exudation and dead space formation, thus technically minimizing the risk of recurrence.

[0019] Constant pressure avoids the risk of over-compression due to unexpected pressure increases (such as from a collision with a traditional clamp) and also prevents ineffective compression due to pressure decreases. Stable comfort helps improve patient compliance throughout the treatment period.

[0020] Furthermore, the mechanical sensing mechanism includes a support tube located between the outer casing and the pressure plate; a cylinder is rotatably fitted inside the support tube, with one end of the cylinder near the outer casing rotatably fitted to the outer casing, and a lifting groove is formed inside the end of the cylinder near the pressure plate. A closed corrugated groove is formed circumferentially on the side wall of the lifting groove, and a lifting plate is slidably fitted inside the lifting groove. A protrusion is fixedly connected to the lifting plate, and the protrusion is slidably fitted to the corrugated groove; a positioning mechanism for limiting the rotation of the lifting plate is also provided on the lifting plate.

[0021] The lifting groove is also connected to a central pipe, which passes through the lifting plate and slides with it. One end of the central pipe near the outer casing is connected to a transfer chamber, and the other end is connected to the pressure chamber. The transfer chamber is connected to several pairs of interfaces, and several vents are opened on the side wall of the cavity near the support pipe. When the air pressure in the pressure chamber rises, the lifting plate moves the protrusion along the wave groove toward the crest of the wave groove. The cylinder rotates until the interface and the vent coincide, and the cavity is connected to the transfer chamber through the vent and the interface. Conversely, when the air pressure in the pressure chamber drops, the lifting plate moves the protrusion along the wave groove toward the trough of the wave groove. The cylinder rotates until the interface and the vent are misaligned, and the vent and the interface are disconnected.

[0022] Beneficial effects: When the air pressure inside the compression chamber rises to or exceeds the preset value, the high-pressure gas in the compression chamber is transmitted to the lifting groove through the central pipe, acting on the bottom surface of the lifting plate. Under the action of air pressure, the lifting plate slides upward within the lifting groove. The protrusion fixed to the lifting plate is embedded in the corrugated groove of the cylinder. When the lifting plate rises linearly, the protrusion is forced to move along the inclined surface of the corrugated groove. Since the positioning mechanism restricts the rotation of the lifting plate itself, this force is converted into torque that drives the cylinder to rotate. The cylinder rotates until the interface on its side wall is completely misaligned with the vent on the side wall of the outer cavity. At this point, the connecting path from the cavity to the transfer chamber and then to the compression chamber is cut off. As long as the pressure inside the compression chamber is sufficient to keep the protrusion in the "crest" area of ​​the corrugated groove, this closed state will remain, preventing the high-pressure gas in the cavity from continuing to enter the compression chamber and causing excessive pressure.

[0023] When the air pressure inside the compression chamber drops below the preset value, the pressure in the compression chamber decreases, reducing the air pressure acting on the bottom surface of the lifting plate. The lifting plate slides downwards, and during this downward movement, the protrusion slides from the crest to the trough along the inclined surface of the corrugated groove. Similarly, because the lifting plate is restricted from rotation, this downward linear motion again drives the cylinder to rotate. The cylinder rotates to a specific position, realigning the interface on its side wall with the vent on the outer casing. The connection path opens, and the gas in the cavity, pre-pressurized or continuously pressurized by the compression mechanism, rapidly flows into the compression chamber through the vent, interface, transfer chamber, and central pipe, causing its pressure to rise again. When the pressure rises back to the preset value, the lifting plate is pushed up again, driving the cylinder to rotate and close the valve, completing one automatic pressure replenishment cycle.

[0024] This solution achieves high-precision, purely mechanical automatic feedback control: it integrates pressure sensing and valve control into a compact mechanical structure, requiring no electronic components, yet achieving automatic adjustment functions similar to electronic constant pressure systems.

[0025] The "crest-trough" design of the wave groove ensures that even minute changes in pressure cause a slight rotation of the cylinder. This means that the valve's opening and closing is a gradual process, rather than an instantaneous "open / close." This design achieves smoother pressure compensation, avoids pressure shocks to the auricle, and improves patient comfort.

[0026] Furthermore, the extrusion mechanism includes a pressure plate and several compression springs. The pressure plate slides in conjunction with the cavity, and the compression springs are used to provide pressure to extrude the gas in the cavity by the pressure plate.

[0027] Beneficial effects: The compression spring provides a continuous, uninterrupted driving force. Compared to manually operated airbags or electric air pumps, it ensures that the compensating air source is always "on standby" during treatment periods lasting several days or even weeks, responding instantly to any demand from the control system (valve opening). The entire device's operating energy comes entirely from the elastic potential energy stored in the compression spring. It requires no batteries, charging, or external power source, eliminating the risk of treatment interruption due to power depletion.

[0028] Furthermore, the positioning mechanism includes a positioning post and a tension spring. One end of the positioning post is fixedly connected to the pressure plate, and the other end of the positioning post passes through the lifting plate and slides with the lifting plate. The tension spring is sleeved on the positioning post, and both ends of the tension spring are fixedly connected to the pressure plate and the lifting plate, respectively.

[0029] Beneficial effects: One end of the positioning column is fixedly connected to the pressure plate, and the other end passes through the lifting plate. This means that the lifting plate can slide up and down along the axis of the positioning column, but any rotational freedom around the axis is restricted by the positioning column itself. This design ensures that the lifting plate can only make pure linear motion under air pressure and cannot rotate on its own.

[0030] The tension spring is sleeved on the positioning post, and its two ends are fixed to the pressure plate and the lifting plate, respectively.

[0031] When the air pressure inside the compression chamber is high enough, the lifting plate is pushed upward, stretching the tension spring. At this time, the tension spring stores elastic potential energy.

[0032] When the air pressure inside the compression chamber drops, the contraction force of the tension spring will actively assist the lifting plate to move downward and reset, rather than relying solely on gravity.

[0033] Compared to relying solely on gravity for repositioning, the tension spring provides stronger and more stable force, unaffected by the patient's position (such as changes in the direction of gravity when lying down), ensuring that the pressure sensor and valve opening / closing trigger points remain precisely consistent in any wearing posture.

[0034] Furthermore, a rubber stopper is provided on the outer box, which penetrates the pressure plate and slides in cooperation with the pressure plate, and the rubber stopper is fixedly connected to the outer box.

[0035] Beneficial effects: Before the device is used for the first time, the entire system (the outer cavity, compression chamber, and related tubing) is either unpressurized or underpressurized. Medical personnel use a standard syringe needle to puncture the rubber stopper. Because the rubber stopper is elastic, it tightly wraps around the needle, forming a temporary seal. Gas can then be injected into the entire sealed system (through the cavity, vent, transfer chamber, central tube, and compression chamber) until the elastic pressure pad expands and applies the appropriate initial treatment pressure to the auricle. The doctor can easily set the optimal initial pressure using a syringe, similar to performing a subcutaneous injection; the operation is extremely simple and requires no special tools or complicated procedures.

[0036] Furthermore, the outer casing has several support tubes and several pressure plates on the side near the ear shell plate, with each support tube corresponding to one of the pressure plates.

[0037] Beneficial effects: The auricle is not a simple flat surface, but a three-dimensional structure with varying depths, convexities, and concaveities. It is difficult for a single compression plate to simultaneously conform to the different parts with varying heights and contours.

[0038] After setting multiple compression plates, they can be distributed like an "array" in different key parts of the auricle (such as the cymba conchae, cavum conchae, triangular fossa, etc.), together forming a complete pressure surface. The elastic pad under each compression plate independently and adaptively conforms to the complex curvature of the auricle, thereby ensuring that the entire cyst area, including its edges, is subjected to continuous and uniform pressure.

[0039] Multiple independently supported compression plates, each with a tiny angle and position adjustment via its support tube, allow the device to adaptively wrap around the entire auricle like a "glove," effectively compressing both the protruding antihelix and the concave concha.

[0040] Furthermore, the bracket is provided with a sliding groove, and a slider is slidably fitted in the sliding groove. The slider is fixedly connected to the outer box.

[0041] Beneficial effects: The size and shape of the auricle, as well as the specific location of the cyst, vary greatly among patients. A fixed-position compression plate cannot be suitable for all patients. Through the sliding cooperation of grooves and sliders, doctors can slide the plate across the patient's auricle to find the optimal compression point, confirm the location, and then fix it in place. This ensures that the compression force is precisely applied to the lesion.

[0042] Furthermore, it also includes LED lights and contact switches, with the contact switches located at the crests and troughs of the waveform groove, and the LED lights electrically connected to the contact switches; when the bumps pass through the crests and troughs of the waveform groove, they will trigger the LED lights to display different light colors.

[0043] Beneficial effects: It transforms the internal, invisible mechanical state into externally visible optical signals, realizing "visual monitoring" of the treatment process.

[0044] When the convex button triggers the switch at the peak, it indicates that the pressure inside the compression chamber has reached the preset upper limit, the air path is closed, and the system is in a "sufficient pressure, maintenance state". At this time, the corresponding LED light (such as a green light) will light up.

[0045] When the convex block triggers the switch at the trough, it indicates that the pressure inside the compression chamber has dropped to the preset lower limit, the air circuit is open and pressure is being replenished, and the system is in "insufficient pressure, compensation state". At this time, the corresponding LED light (such as a red light) will light up.

[0046] At the start of treatment, the doctor inflates the system through a rubber stopper. He can observe the changes in the LED lights in real time: when the LED at the peak of the pressure spike illuminates for the first time, it indicates that the system pressure has reached the ideal preset treatment value. This provides the doctor with an objective and precise endpoint signal, avoiding the problem of over- or under-inflation that might occur due to experience-based inflation.

[0047] Furthermore, the LED lights are housed inside the cylinder, and both the support tube and the cylinder are made of transparent materials.

[0048] Beneficial effects: Embedding the LED light within the cylinder, rather than hanging it externally on the support tube, makes the entire device's outer surface smoother and flatter. This avoids the risks of snagging, bumping, and damage that exposed components may cause, improving the safety and comfort of wearing the device.

[0049] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0050] Figure 1 This is a three-dimensional structural schematic diagram of the auricular local pressure device after auricular pseudocyst puncture according to the present invention.

[0051] Figure 2 for Figure 1 Side view of the local pressure device on the auricle after puncture of a pseudocyst in the middle ear.

[0052] Figure 3 for Figure 1 Front view of the local pressure device on the auricle after puncture of a pseudocyst in the middle ear.

[0053] Figure 4 for Figure 3 Sectional view along the AA direction.

[0054] Figure 5 for Figure 4 Sectional view along the BB direction.

[0055] The reference numerals in the accompanying drawings of the instruction manual include: 1. Ear shell plate; 2. Bracket; 3. Outer casing; 4. Support tube; 5. Pressure plate; 6. Rubber stopper; 201. Slide groove; 202. Slider; 301. Cavity; 302. Vent; 303. Pressure plate; 304. Compression spring; 401. Cylinder; 402. Transfer cavity; 403. Connecting interface; 404. Through tube; 405. Wave groove; 406. Tension spring; 407. Lifting plate; 408. Lifting groove; 409. Protrusion; 410. Positioning post; 501. Pressure cavity; 502. Elastic pressure pad. Detailed Implementation

[0056] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] In the description of this invention, 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. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0059] The following detailed description illustrates the specific implementation method:

[0060] The basic implementation examples are as follows: Figures 1-5 As shown: A local pressure device for auricular pseudocyst after puncture includes an auricular plate 1 and a pressure plate 5. Preferably, in this embodiment, the auricular plate 1 is an ear-hanging structure, and a support 2 is provided between the auricular plate 1 and the pressure plate 5. Preferably, the support 2 is an arc-shaped structure that conforms to the shape of the human auricle, and the support 2 is integrated with the auricular plate 1.

[0061] Preferably, in this embodiment, a plurality of pressure plates 5 are provided.

[0062] Each of the compression plates 5 has a compression cavity 501 on the side near the ear shell plate 1. Preferably, each of the compression cavities 501 has an opening on the side near the ear shell plate 1. An elastic pressure pad 502 is glued and fixed inside the opening. Each of the compression cavities 501 is connected to a pressure maintaining mechanism, which is used to maintain the pressure inside the compression cavity 501 within a preset range.

[0063] Specifically, the air pressure maintaining mechanism includes an outer casing 3, preferably combined with an attached... Figure 4 As shown, the bracket 2 also has a sliding groove 201, in which a slider 202 slides and is fixedly welded to the outer casing 3. The outer casing 3 has a cavity 301 connected to a pressure chamber 501. A mechanical sensing mechanism is installed along the communication path between the cavity 301 and the pressure chamber 501. This mechanism controls the connection between the cavity 301 and the pressure chamber 501 based on changes in air pressure within the pressure chamber 501. A compression mechanism is also installed within the cavity 301 to pressurize the gas within it. Specifically, the compression mechanism includes a pressure plate 303 and several compression springs 304. The pressure plate 303 slides and engages with the cavity 301. The compression springs 304 provide pressure to compress the gas within the cavity 301. Both ends of the compression springs 304 are bonded and fixed to the outer casing 3 and the pressure plate 303, respectively.

[0064] Specifically, the mechanical sensing mechanism includes a support tube 4, which is located between the outer casing 3 and the pressure plate 5. Both ends of the support tube 4 are welded and fixed to the outer casing 3 and the pressure plate 5, respectively. A cylinder 401 is rotatably fitted inside the support tube 4, in conjunction with the attached... Figure 5 As shown, the cylinder 401 is rotatably fitted with the outer casing 3 at one end near the outer casing 3. A lifting groove 408 is provided in the cylinder 401 at the end near the pressure plate 5, and the lifting groove 408 is connected to the pressure cavity 501. A closed wave groove 405 is provided circumferentially on the side wall of the lifting groove 408. Preferably, the shape trajectory of the wave groove 405 after unfolding is a sine or cosine function curve. A lifting plate 407 is slidably fitted in the lifting groove 408, and a protrusion 409 is welded and fixed on the edge of the lifting plate 407. The protrusion 409 slides with the wave groove 405; the lifting plate 407 is also provided with a positioning mechanism for limiting the rotation of the lifting plate 407; specifically, the positioning mechanism includes a positioning post 410 and a tension spring 406. One end of the positioning post 410 is welded and fixed to the pressure plate 5, and the other end of the positioning post 410 passes through the lifting plate 407 and slides with the lifting plate 407. The tension spring 406 is sleeved on the positioning post 410, and both ends of the tension spring 406 are bonded and fixed to the pressure plate 5 and the lifting plate 407 respectively.

[0065] A central pipe 404 is also connected inside the lifting groove 408. The central pipe 404 passes through the lifting plate 407 and slides with the lifting plate 407. Preferably, the central pipe 404 passes through the center of the lifting plate 407. One end of the central pipe 404 near the outer casing 3 is connected to a transfer cavity 402, which is located inside the cylinder 401. The other end of the central pipe 404 is connected to the compression cavity 501. The transfer cavity 402 is connected to several interfaces 403, which are located inside the cylinder 401. Several vents 302 are provided on the side wall of the transfer cavity 402 near the support pipe 4. Preferably, the interfaces 403 and the vents 302 are connected to the transfer cavity. Centered on 402, the cylinder is arranged circumferentially. When the air pressure in the compression chamber 501 rises, the lifting plate 407 moves, causing the protrusion 409 to move along the wave groove 405 toward the crest of the wave groove 405. The cylinder 401 rotates until the interface 403 and the vent 302 coincide. At this point, the cavity 301 is connected to the transfer chamber 402 through the vent 302 and the interface 403. Conversely, when the air pressure in the compression chamber 501 drops, the lifting plate 407 moves, causing the protrusion 409 to move along the wave groove 405 toward the trough of the wave groove 405. The cylinder 401 rotates until the interface 403 and the vent 302 are misaligned. At this point, the vent 302 and the interface 403 are disconnected.

[0066] Preferably, a rubber stopper 6 is also provided on the outside of the outer box 3. After the rubber stopper 6 is embedded in the outer box 3, it passes through the pressure plate 303 and slides in cooperation with the pressure plate 303. The rubber stopper 6 is bonded and fixed to the outer box 3.

[0067] Preferably, it also includes an LED light and a contact switch. The LED light is installed inside the cylinder 401, and the contact switch is embedded in the crest and trough of the wave groove 405. The LED light and the contact switch are electrically connected. When the protrusion 409 passes through the crest and trough of the wave groove 405, it will trigger the LED light to display different light colors. In this embodiment, both the support tube 4 and the cylinder 401 are made of transparent material.

[0068] To address the clinical challenges posed by the complex surface morphology of the auricle, the presence of multiple natural depressions (such as the concha, triangular fossa, and cymba conchae), and the difficulty in achieving uniform fixation and the creation of pressure dead zones using traditional pressure devices, this invention provides a systematic solution through the following structural design:

[0069] (I) Multi-point independent compression units achieve three-dimensional fitting compression: This device is equipped with several sets of independent support tubes 4 and compression plates 5, each of which can move and expand independently. After wearing, each compression plate 5 can automatically adjust the expansion height and pressure angle of the elastic pad 502 according to the actual concave and convex shape of the corresponding auricular region. For deep concave areas such as the concha, the corresponding compression plate 5 is fully inflated and extends deep into the bottom of the concave area; for convex areas such as the antihelix, the corresponding compression plate 5 expands slightly to avoid excessive compression. This forms a "fitting" three-dimensional compression on the undulating surface of the front of the auricle, ensuring that the cyst can receive continuous and uniform effective pressure regardless of its curvature.

[0070] (II) Air pressure driven elastic pressure pad 502 achieves uniform surface pressure: Each pressure chamber 501 integrates a highly elastic medical silicone pressure pad. After being inflated by the air pressure maintenance mechanism, the pressure pad expands outward as a whole, forming a continuous, soft pressure surface that can deform in real time with the curvature of the auricle. This pressure surface completely eliminates the "point-like" or "linear" pressure defects of traditional rigid clips, making the pressure evenly distributed throughout the cyst area and its surroundings, with no stress concentration points, effectively avoiding the risk of skin ischemia, pressure injury, or cartilage necrosis.

[0071] (III) Bionic Fixation and Adjustable Position Structure Ensures Stable Wearing: The auricle plate 1 adopts an ear-hook structure, naturally hooking onto the back of the auricle to form a stable base support; the support 2 extends along the front curved surface of the auricle to form a surrounding fixation frame; at the same time, a sliding groove 201 is opened on the support 2, and the outer box 3 can slide along the sliding groove 201 through the slider 202, driving the compression plate 5 to move precisely to the location of the cyst lesion. After wearing, a two-way stable mechanical structure of "front pressure and rear support" is formed to prevent the device from slipping or shifting, and without adding extra burden to other parts of the auricle.

[0072] In summary, this device achieves comprehensive, uniform, and continuous pressure on the complex curved surface of the auricle through a triple mechanism of multi-point independence, air pressure self-adaptation, and dynamic maintenance. It can solve the problems of insufficient pressure in concave areas, uneven overall pressure, and easy slippage and fixation of traditional pressure devices.

[0073] The specific implementation process is as follows: The doctor adjusts the position of the compression plate 5 according to the size of the patient's auricle and the specific location of the cyst. Holding the outer box 3, the doctor slides it within the groove 201 of the support 2, moving the connected compression plates 5 until all compression plates 5 accurately cover the cyst area and surrounding areas requiring pressure. Then, the auricle plate 1 of the device is hung on the patient's auricle, and naturally conforms to the auricle through the arc-shaped structure of the support 2, completing the initial fixation.

[0074] After the device is put on, the doctor uses a syringe fitted with a needle to insert it into the rubber stopper 6 on the outer casing 3.

[0075] Air is injected into the system using a syringe. The gas enters the cavity 301 through the rubber stopper 6, and then passes through the (initially connected) vent 302, the interface 403, the transfer cavity 402, and the central tube 404, finally entering each compression cavity 501.

[0076] As gas is injected, the elastic pressure pad 502 begins to expand, gradually adhering to and compressing the affected area of ​​the auricle. Simultaneously, the doctor observes the LED indicator light inside the cylinder 401.

[0077] When the pressure inside the compression chamber 501 reaches the preset upper limit of treatment, the mechanical sensing mechanism starts to activate:

[0078] High-pressure gas pushes the lifting plate 407 to move upward along the positioning column 410.

[0079] The upward-moving lifting plate 407 drives the protrusion 409 on it to move along the inclined surface of the wave groove 405. Since the positioning pin 410 restricts the rotation of the lifting plate 407, this linear motion is converted into the rotational torque of the cylinder 401, driving the cylinder 401 to rotate.

[0080] When cylinder 401 rotates until protrusion 409 reaches the crest of wave groove 405, the interface 403 on the side wall of cylinder 401 is completely misaligned with the vent 302 on support tube 4 (i.e. outer box 3), the air path is cut off, and pressurization stops.

[0081] Simultaneously, the bump 409 triggers the contact switch at the crest of the wave, causing the LED inside the cylinder 401 to emit a green light (indicating that the pressure has reached the standard). Once the doctor sees the green indicator light illuminate, they can stop inflation and remove the needle. The rubber stopper 6 automatically seals, forming a closed loop in the entire pneumatic system. At this point, the device has been set to the most suitable initial treatment pressure for the patient.

[0082] During the treatment cycle, which lasts for several days, the device enters fully automatic operation mode:

[0083] Pressure maintenance phase: Under the continuous action of the compression spring 304, the pressure plate 303 maintains pressure on the gas in the cavity 301 as a reserve gas source. At this time, since the pressure in the compression chamber 501 is stable, the protrusion 409 is located at the crest of the wave, the air passage is closed, and the LED light shows green, indicating that the pressure is normal.

[0084] Pressure compensation phase: If the pressure in compression chamber 501 decreases due to the reduction of tissue edema or minor leakage:

[0085] The air pressure acting on the lifting plate 407 decreases, and under the contraction force of the tension spring 406, the lifting plate 407 moves downward.

[0086] The downward-moving protrusion 409 slides from the crest to the trough along the wave groove 405, driving the cylinder 401 to rotate again.

[0087] The cylinder 401 rotates to realign the interface 403 with the vent 302, thus connecting the air passage.

[0088] The high-pressure gas maintained by the compression spring 304 in the cavity 301 is instantly replenished to the compression chamber 501 through the open passage (i.e., the interface 403 and the vent 302), so that the elastic pressure pad 502 returns to its original pressure.

[0089] During the pressure replenishment process, when the bump 409 passes through the trough, it will trigger the contact switch at that location, and the LED may briefly display red (indicating that pressure replenishment is in progress).

[0090] When the pressure returns to the preset value, the lifting plate is pushed up again, the protrusion returns to the crest, the air passage is closed, and the LED light returns to green.

[0091] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A device for applying local pressure to the auricle after puncture of a pseudocyst of the auricle, characterized in that: It includes an ear shell plate (1) and a pressure plate (5). A bracket (2) is provided between the ear shell plate (1) and the pressure plate (5). A pressure cavity (501) is opened on the side of the pressure plate (5) near the ear shell plate (1). An elastic pressure pad (502) is provided in the pressure cavity (501). An air pressure maintaining mechanism is connected to the pressure cavity (501). The air pressure maintaining mechanism is used to maintain the air pressure in the pressure cavity (501) within a preset range.

2. The auricular local pressure device after auricular pseudocyst puncture according to claim 1, characterized in that: The air pressure maintaining mechanism includes an outer box (3), and a cavity (301) is provided inside the outer box (3). The cavity (301) is connected to the compression chamber (501). A mechanical sensing mechanism is provided on the communication path between the cavity (301) and the compression chamber (501). The mechanical sensing mechanism is used to control the connection and disconnection between the cavity (301) and the compression chamber (501) based on the air pressure change in the compression chamber (501). A squeezing mechanism is also provided inside the cavity (301). The squeezing mechanism is used to pressurize the gas in the cavity (301).

3. The auricular local pressure device after auricular pseudocyst puncture according to claim 2, characterized in that: The mechanical sensing mechanism includes a support tube (4), which is located between the outer box (3) and the pressure plate (5); a cylinder (401) is rotatably fitted inside the support tube (4), and the end of the cylinder (401) near the outer box (3) is rotatably fitted with the outer box (3). A lifting groove (408) is opened inside the end of the cylinder (401) near the pressure plate (5). A closed wave groove (405) is opened circumferentially on the side wall of the lifting groove (408). A lifting plate (407) is slidably fitted inside the lifting groove (408). A protrusion (409) is fixedly connected to the lifting plate (407), and the protrusion (409) is slidably fitted with the wave groove (405); a positioning mechanism for limiting the rotation of the lifting plate (407) is also provided on the lifting plate (407). The lifting groove (408) is also connected to a central pipe (404), which passes through the lifting plate (407) and slides with it. One end of the central pipe (404) near the outer casing (3) is connected to a transfer chamber (402), and the other end of the central pipe (404) is connected to the compression chamber (501). The transfer chamber (402) is connected to several interfaces (403), and several vents (302) are opened on the side wall of the cavity (301) near the support pipe (4). When the air pressure in the compression chamber (501) rises, the lifting plate (407) is displaced, causing the protrusion (409) to move along the wave groove (409). 5) When the cylinder (401) moves toward the crest of the wave groove (405) and rotates until the interface (403) coincides with the vent (302), the cavity (301) is connected to the transfer cavity (402) through the vent (302) and the interface (403). Conversely, when the air pressure in the compression cavity (501) drops, the displacement of the lifting plate (407) causes the protrusion (409) to move along the wave groove (405) toward the trough of the wave groove (405). When the cylinder (401) rotates until the interface (403) and the vent (302) are misaligned, the vent (302) and the interface (403) are disconnected.

4. The auricular local pressure device after auricular pseudocyst puncture according to claim 3, characterized in that: The extrusion mechanism includes a pressure plate (303) and several compression springs (304). The pressure plate (303) slides with the cavity (301), and the compression springs (304) provide pressure to extrude the gas in the cavity (301) by the pressure plate (303).

5. The auricular local pressure device after auricular pseudocyst puncture according to claim 4, characterized in that: The positioning mechanism includes a positioning post (410) and a tension spring (406). One end of the positioning post (410) is fixedly connected to the pressure plate (5), and the other end of the positioning post (410) passes through the lifting plate (407) and slides with the lifting plate (407). The tension spring (406) is sleeved on the positioning post (410), and both ends of the tension spring (406) are fixedly connected to the pressure plate (5) and the lifting plate (407) respectively.

6. The auricular local pressure device after auricular pseudocyst puncture according to claim 5, characterized in that: A rubber stopper (6) is provided on the outer box (3). The rubber stopper (6) passes through the pressure plate (303) and slides with the pressure plate (303). The rubber stopper (6) is fixedly connected to the outer box (3).

7. The auricular local pressure device after auricular pseudocyst puncture according to claim 6, characterized in that: The outer box (3) is provided with several support tubes (4) and several pressure plates (5) on the side near the ear shell plate (1), with the support tubes (4) and pressure plates (5) corresponding one to one.

8. The auricular local pressure device after auricular pseudocyst puncture according to claim 7, characterized in that: The bracket (2) has a groove (201) and a slider (202) is slidably fitted inside the groove (201). The slider (202) is fixedly connected to the outer box (3).

9. The auricular local pressure device after auricular pseudocyst puncture according to claim 8, characterized in that: It also includes LED lights and contact switches, with the contact switches located at the crests and troughs of the waveform groove (405) respectively, and the LED lights being electrically connected to the contact switches; when the bump (409) passes through the crests and troughs of the waveform groove (405), it will trigger the LED lights to display different light colors.

10. The auricular local pressure device after auricular pseudocyst puncture according to claim 9, characterized in that: The LED light is installed inside the cylinder (401), and both the support tube (4) and the cylinder (401) are made of transparent material.

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