A quantitative sustained-release Chinese medicine navel therapy herbal drop administration device

Abstract

The application discloses a kind of quantitative sustained-release traditional Chinese medicine navel therapy herbal drops dosing device applied to traditional Chinese medicine navel therapy technical field, the device includes the medicine storage room with scale, the adjusting cover for the quantitative adjustment of herbal drops is threadedly installed on the upper end of medicine storage room, the hand valve of intercommunication is fixedly installed in the lower end of medicine storage room, the sustained-release chamber of intercommunication is fixedly installed in the lower end of hand valve, the adsorption assembly for being attached to the skin of patient is fixedly installed in the outer end of sustained-release chamber, the multilayer sustained-release assembly for the sustained-release of herbal drops is fixedly installed in the inner side of sustained-release chamber, the medicine applying assembly corresponding to multilayer sustained-release assembly is fixedly installed in the lower end of sustained-release chamber, the device can realize the accurate quantitative dosing of herbal drops and continuous stable sustained-release, adaptive dosing adjustment is realized by adapting to patient physiological activity, has excellent leakage prevention and skin attachment performance, the process of dosing is safe and stable, convenient to operate, suitable for clinical treatment and home rehabilitation of traditional Chinese medicine navel therapy.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine umbilical therapy technology, and in particular to a quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy. Background Technology

[0002] Traditional Chinese medicine (TCM) umbilical therapy is an important component of the external treatment system of TCM. Based on TCM meridian theory and visceral theory, it uses the Shenque acupoint at the navel as the target point for drug administration and treatment. Through the stimulation of the acupoint and the absorption of drugs through the skin, it aims to regulate the function of the internal organs and treat diseases. The navel, as the innate origin of the human body, is characterized by its thin stratum corneum, low subcutaneous fat, rich blood vessels, and high permeability. Drugs can quickly penetrate the skin of the navel and enter the systemic circulation, effectively avoiding the first-pass effect of gastrointestinal tract and the metabolic burden on the liver and kidneys caused by oral administration. It is suitable for patients with weak spleen and stomach function who cannot tolerate oral administration. It has wide applications in many fields such as chronic disease management, gynecological diseases, pediatric diseases, and geriatric diseases, and is an important carrier of characteristic TCM treatment techniques.

[0003] With the continuous development of external treatment techniques in Traditional Chinese Medicine (TCM), the application scenarios of umbilical therapy for drug delivery are constantly expanding, placing higher demands on the performance of drug delivery devices. Current umbilical therapy drug delivery methods mainly rely on traditional plaster application, powder preparation, and direct infusion of drops. The accompanying drug delivery devices are simple in structure and cannot meet the clinical needs for precise, safe, and continuous drug delivery. Most existing umbilical therapy drug delivery devices cannot achieve precise quantitative drug delivery; the dosage depends entirely on the operator's subjective judgment and experience, easily leading to over- or under-dosing. Over-dosing can easily cause local skin irritation and systemic adverse reactions, while under-dosing fails to achieve the expected therapeutic effect, seriously affecting the stability and standardization of umbilical therapy.

[0004] Meanwhile, existing umbilical therapy drug delivery devices are unable to achieve continuous and stable sustained drug release. Most are single-dose delivery devices, with a large amount of drug released in a short period of time after administration, and the local drug concentration quickly reaches its peak. This not only results in ineffective waste of drugs, but also easily causes strong irritation to the delicate skin of the navel, causing discomfort such as redness, swelling, allergies, and ulceration. As the drug is released rapidly, the local drug concentration will drop rapidly, making it impossible to maintain a stable and effective therapeutic concentration in the long term. This makes it difficult to meet the treatment needs of long-term continuous drug administration for chronic diseases and fails to fully exert the therapeutic effect of umbilical therapy drugs.

[0005] Furthermore, the rigid structure of existing devices cannot adapt to the micro-movements of the umbilicus caused by changes in human respiration and abdominal pressure, which can easily create gaps between the device and the skin, further exacerbating the problem of drug leakage and failing to ensure the continuity of drug administration. The sustained-release structure of existing devices mostly uses a single sustained-release material, which has limited sustained-release regulation capabilities and is prone to problems such as excessively rapid drug release in the early stage and insufficient drug release in the later stage. It cannot achieve constant-rate sustained release and cannot adapt to changes in the patient's physiological activities, which can easily lead to drug accumulation or drug administration interruption, resulting in insufficient uniformity and stability of drug administration. Summary of the Invention

[0006] The core of this invention lies in solving the problems of ambiguous positioning, insufficient sealing reliability, and cumbersome opening and closing operations in the prior art by coordinating the design of the flow direction switching component and the closing component. At the same time, it also forms a double seal between the valve plate and the abutment seat through a magnetic assisted sealing structure, which significantly improves the controllability, sealing performance and ease of operation of the multi-channel fluid distribution system.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy includes a graduated drug storage chamber. An adjustment cap for quantitative herbal drops is threaded onto the upper end of the drug storage chamber. A connected manual valve is fixedly installed at the lower end of the drug storage chamber. A connected sustained-release chamber is fixedly installed below the manual valve. An adsorption component that conforms to the patient's skin is fixedly installed at the outer end of the sustained-release chamber. A multi-layer sustained-release component for the sustained-release herbal drops is fixedly installed inside the sustained-release chamber. A corresponding medication application component is fixedly installed at the lower end of the sustained-release chamber. The medication application component is used to apply medication to the patient's umbilical region.

[0009] As a further improvement of the present invention, the adjusting cover includes a rotating cover body, an adjusting screw fixedly installed at the lower end of the rotating cover body, and a piston fixedly installed at the lower end of the adjusting screw. By rotating the rotating cover body, the adjusting screw can be fed and retracted in the medicine storage chamber, thereby using the piston to adjust the space in the medicine storage chamber to achieve the effect of quantitative storage of herbal medicines.

[0010] As a further improvement of the present invention, the adjusting cover also includes a dosing component for replenishing the herbal drops. The rotating cover has a balancing vent extending to the bottom of the piston. A waterproof and breathable membrane is fixedly installed at the bottom of the balancing vent. While replenishing the herbal medicine through the dosing component, the balancing vent is used to achieve balance with the external air pressure. The waterproof and breathable membrane can prevent the medicine from leaking out and the external environment from contaminating the medicine.

[0011] As a further improvement of the present invention, the dosing assembly includes a sealing cap, a filling column is fixedly installed at the lower end of the sealing cap, and a dosing channel extending to the bottom of the piston is also provided on the rotating cover. The filling column matches the dosing channel. The dosing channel can be opened for drug replenishment by removing the sealing cap, and the dosing channel can be sealed when closed. The filling column can fill the internal space of the dosing channel to prevent the drug from entering and causing the dosage to be greater than the actual amount.

[0012] As a further improvement of the present invention, the multi-layer sustained-release component includes, from top to bottom, a second porous sustained-release disc and a third porous sustained-release disc arranged sequentially. Each of the second and third porous sustained-release discs is fixedly mounted with an elastic rubber ring. The pore size of the second and third porous sustained-release discs gradually decreases. The second and third porous sustained-release discs are composed of multiple layers of medical-grade microporous materials with different pore sizes. They provide continuous damping for the flow of the drug solution, allowing the drug solution to be released uniformly to the umbilicus at a stable and slow flow rate, avoiding excessively high peak drug concentrations caused by a large influx at once.

[0013] As a further improvement of the present invention, the adsorption component includes a flexible suction cup, a first flexible lip is fixedly installed at the lower end of the flexible suction cup, and a medical pressure-sensitive adhesive layer is fixedly installed on the inner side of the bottom of the flexible suction cup. By pressing the flexible suction cup, the internal space is discharged to form a negative pressure adsorption effect. The first flexible lip can gently fit the patient and seal, and the medical pressure-sensitive adhesive layer can improve the firmness and prevent it from falling off.

[0014] As a further improvement of the present invention, the medication delivery assembly includes a corrugated sleeve with a second flexible lip fixedly installed at the lower end. A matching medication delivery core is embedded in the inner side of the corrugated sleeve. The medication is slowly released by the multi-layer sustained-release assembly to the medication delivery core and then delivered to the patient's umbilical region. The second flexible lip can fit around the umbilicus to prevent leakage. At the same time, utilizing the expandable characteristics of the corrugated sleeve, when the patient breathes normally or there is slight movement of the umbilical skin, the increased abdominal pressure will create a squeezing effect. At this time, the corrugated sleeve can contract upward, and the medication delivery core will create a slight squeezing effect on the multi-layer sustained-release assembly. When the elastic rubber ring is squeezed, it will compress, reducing the internal space to increase the internal hydraulic pressure, which will allow the medication to penetrate. When the squeezing effect disappears, the corrugated sleeve and the medication delivery core will return to their original positions. After the elastic rubber ring returns to its shape, the space increases. The negative pressure adsorption effect allows the medication at the manual valve to quickly enter the multi-layer sustained-release assembly for replenishment, ensuring a continuous release of medication and preventing interruption or accumulation.

[0015] As a further improvement of the present invention, the drug delivery core includes a capillary fluid guide. Fixed rings are fixedly installed at both the upper and lower edges of the capillary fluid guide. Multiple circumferentially distributed connecting posts are fixedly installed between the fixed rings. The capillary fluid guide can slowly release the drug through capillary action to reach the navel for drug delivery. The fixed rings and connecting posts can fix the shape of the capillary fluid guide to prevent deformation after being squeezed, and at the same time, the pressure can be effectively transmitted to the multilayer sustained-release component.

[0016] As a further improvement of the present invention, an inertial throttle is fixedly installed at the connection between the manual valve and the sustained-release chamber, and the inertial throttle is used to control the fluctuation of drug dosage in the dynamic state of the patient.

[0017] As a further improvement of the present invention, the inertial throttle includes a throttle column, on the outer wall of which are provided multiple circumferentially distributed leakage channels. An external elastic airbag is fixedly installed on the inner wall of each leakage channel. A cavity is provided inside the throttle column, and an annular non-elastic airbag is arranged around the side wall of the cavity. The annular non-elastic airbag and the external elastic airbag are connected by a pipe. An inertial mass sphere, abutting against the annular non-elastic airbag, is located at the center of the cavity. An elastic column is fixedly installed at the lower center of the inertial mass sphere and at the center of the bottom of the cavity. Under normal conditions, when the manual valve is opened, the drug can slowly flow downwards through the leakage channels. When a patient moves significantly, such as turning over or coughing, the medication dosage can easily fluctuate greatly. In this case, the inertia caused by the movement causes the inertial mass ball to overcome the elasticity of the elastic column and compress the surrounding annular non-elastic air bladder. Utilizing the non-inflatable nature of the annular non-elastic air bladder, gas is forced into the outer elastic air bladder, causing it to expand and fill the gaps in the leakage channel, thus throttling the medication and preventing fluctuations caused by a sudden increase in flow. After returning to the normal position, the elastic force of the elastic column pulls the inertial mass ball back to its original position. At this time, the outer elastic air bladder returns to its shape due to its own elasticity, forcing the gas back into the annular non-elastic air bladder.

[0018] Compared with the prior art, the advantages of this invention are: (1) This scheme can achieve precise quantitative administration and continuous stable sustained release of TCM umbilical therapy herbal drops. Through the combination of graduated drug storage chamber and adjustment cap, the dosage of the drug can be precisely controlled to avoid the effect of dosage deviation on the treatment effect. At the same time, through the multi-layered sustained release component with progressively smaller pore size, the drug can form a graded damping sustained release effect, which can effectively regulate the release rate of the drug, so that the drug can maintain a stable effective therapeutic concentration for a long time, avoid the excessive local concentration and skin irritation caused by the large release of the drug in a short period of time, reduce drug waste, and improve the therapeutic effect and safety of umbilical therapy.

[0019] (2) This solution has excellent adaptive fit and anti-leakage and anti-detachment performance. Through the dual fixing structure of negative pressure adsorption of the adsorption component and pressure-sensitive adhesive, the device can be reliably fixed to the patient's umbilical skin, effectively avoiding displacement and detachment during daily activities. At the same time, through the retractable corrugated sleeve and flexible lip structure, it can adapt to the micro-movement of the umbilicus caused by the patient's breathing and body position changes, always maintaining a tight fit with the umbilical skin, effectively preventing drug leakage. At the same time, through the adaptive throttling structure of the inertial throttling device, it can automatically limit the drug flow when the patient's body position changes significantly, avoiding large fluctuations in the drug administration rate, and ensuring the stability and uniformity of the drug administration process. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention in half section; Figure 4 This is a schematic diagram of the structure of the adjusting cover of the present invention; Figure 5 This is a schematic diagram of the structure of the drug delivery component and the waterproof and breathable membrane of the present invention; Figure 6 This is a schematic diagram of the inertial throttle portion of the present invention; Figure 7 This is a schematic diagram of the adsorption component of the present invention; Figure 8 This is an exploded view of the multilayer sustained-release component of the present invention; Figure 9 This is a schematic diagram of the structure of the drug delivery component of the present invention; Figure 10 This is an exploded view of the drug core of the present invention.

[0021] Explanation of the labels in the diagram: 1. Drug storage chamber; 2. Adjusting cover; 201. Rotating cover; 202. Adjusting screw; 203. Piston; 204. Dosing assembly; 2041. Sealing cap; 2042. Filling column; 2043. Dosing channel; 205. Balancing vent; 206. Waterproof and breathable membrane; 3. Sustained-release chamber; 4. Adsorption assembly; 401. Flexible suction cup; 402. First flexible lip; 403. Medical pressure-sensitive adhesive layer; 5. Drug application assembly; 501. Corrugated sleeve; 502. Second flexible lip; 503, Drug delivery core; 5031, Capillary guide; 5032, Fixing ring; 5033, Connecting column; 6, Manual valve; 7, Inertial throttle; 701, Throttling column; 702, Leakage channel; 703, External elastic airbag; 704, Annular non-elastic airbag; 705, Inertial mass ball; 706, Elastic column; 8, Multilayer sustained-release assembly; 801, First porous sustained-release disc; 802, Second porous sustained-release disc; 803, Third porous sustained-release disc; 804, Elastic rubber ring. Detailed Implementation

[0022] The present invention discloses a quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy, the specific implementation of which is as follows: For the first embodiment, please refer to Figures 1-5 This device includes a graduated drug storage chamber 1, which is integrally injection molded from medical-grade transparent polypropylene. It possesses excellent biocompatibility, chemical stability, and light transmittance. The graduation markings on its outer wall are formed using laser engraving, allowing for clear and intuitive observation of the stored and administered dosage of the drug, providing a direct reference for quantitative dosing. The inner wall at the upper end of the drug storage chamber 1 has an internal thread structure, through which an adjusting cap 2 for quantitative herbal drops is installed. The main structure of the adjusting cap 2 is made of medical-grade polypropylene, and its thread fit with the drug storage chamber 1 meets medical-grade sealing standards, effectively preventing drug leakage.

[0023] The adjusting cover 2 includes a rotating cover body 201. The outer wall of the rotating cover body 201 is provided with an anti-slip knurled structure for easy operation. An adjusting screw 202 is coaxially fixedly installed at the lower end of the rotating cover body 201. The adjusting screw 202 is made of medical-grade 304 stainless steel, which has excellent structural strength and corrosion resistance. Its external thread is compatible with the internal thread at the upper end of the medicine storage chamber 1. A piston 203 is coaxially fixedly installed at the lower end of the adjusting screw 202. The piston 203 is made of medical-grade silicone rubber. Its outer wall is interference-fitted with the inner wall of the medicine storage chamber 1 to form a stable dynamic sealing structure. By rotating the rotating cover body 201, the adjusting screw 202 can be driven to feed and retract along the axial direction of the medicine storage chamber 1, thereby driving the piston 203 to move synchronously inside the medicine storage chamber 1, adjusting the effective storage space inside the medicine storage chamber 1. In conjunction with the scale on the outer wall of the medicine storage chamber 1, the precise quantitative storage and dosage control of the herbal medicine can be achieved.

[0024] The adjusting cover 2 also includes a dosing component 204 for replenishing the herbal drops. A balance vent 205 extending axially and penetrating to the bottom of the piston 203 is provided at the center of the rotating cover 201. A waterproof and breathable membrane 206 is fixedly installed at the bottom opening of the balance vent 205. The waterproof and breathable membrane 206 is made of expanded polytetrafluoroethylene and has the characteristics of being breathable but not liquid-permeable. During the process of replenishing the herbal medicine through the dosing component 204, the balance vent 205 can achieve pressure balance between the inside of the medicine storage chamber 1 and the outside atmosphere, avoiding poor dosing or dosage deviation due to pressure difference. The waterproof and breathable membrane 206 can effectively prevent the medicine inside the medicine storage chamber 1 from leaking out through the balance vent 205, while isolating dust, microorganisms and other pollutants in the external environment from entering the medicine storage chamber 1, ensuring the cleanliness and stability of the medicine.

[0025] The dosing assembly 204 includes a sealing cap 2041 made of medical-grade polypropylene. A filling column 2042, made of medical-grade silicone rubber, is coaxially fixed to the lower end of the sealing cap 2041. A dosing channel 2043, extending axially and penetrating to the bottom of the piston 203, is also provided on the rotating cover 201. The inner diameter of the dosing channel 2043 matches the outer diameter of the filling column 2042, and the outer wall of the filling column 2042 is interference-fitted with the inner wall of the dosing channel 2043. The sealed structure allows for easy access to the medicine supply channel 2043 when medication needs to be replenished. The herbal medicine supply channel 2043 is then opened by removing the sealing cap 2041, allowing the medicine to be supplied to the medicine storage chamber 1. After replenishment, the sealing cap 2041 is reset, and the filling column 2042 completely fills the internal space of the medicine supply channel 2043. This prevents medicine residue from remaining inside the medicine supply channel 2043, thus avoiding deviations between the actual dosage and the set dosage. Simultaneously, it ensures a reliable seal of the medicine supply channel 2043, preventing medicine leakage and external contamination.

[0026] A manual valve 6 is fixedly installed at the lower end of the drug storage chamber 1. The manual valve 6 is made of medical-grade polypropylene, and a silicone rubber sealing ring is used between its valve stem and body to achieve both static and dynamic sealing. The manual valve 6 controls the opening and closing of the passage between the drug storage chamber 1 and the downstream sustained-release chamber 3. It can open or close the drug passage according to the dosing requirements and can also assist in adjusting the basic flow rate of the drug to adapt to the dosing needs of herbal drops of different viscosities. The sustained-release chamber 3 is also fixedly installed at the lower end of the manual valve 6. The sustained-release chamber 3 is integrally molded from medical-grade transparent polypropylene, providing a stable installation space and sealing protection for the internal sustained-release structure. It also allows for direct observation of the sustained-release status of the drug inside, facilitating the operator's monitoring of the dosing process.

[0027] Please see Figure 7An adsorption component 4 that fits the patient's skin is fixedly installed at the outer end of the sustained-release chamber 3. The adsorption component 4 is used to fix the entire device to the patient's skin around the navel, so as to achieve reliable positioning and sealing. The adsorption component 4 includes a flexible suction cup 401, which is integrally molded from medical-grade soft silicone rubber. It possesses excellent flexibility and deformation capabilities, adapting to the contours of different patients' periumbilical skin. A first flexible lip 402 is fixedly installed at the lower opening of the flexible suction cup 401. The first flexible lip 402 is made of medical-grade ultra-thin silicone rubber, which is soft and can form a gentle surface fit with the skin, avoiding pressure damage. A medical pressure-sensitive adhesive layer 403 is fixedly installed on the inner bottom of the flexible suction cup 401. The medical pressure-sensitive adhesive layer 403 is made of low-allergenic medical acrylic pressure-sensitive adhesive, possessing good skin adhesion and breathability. During use, pressing the flexible suction cup 401 expels the air inside, creating a negative pressure adsorption effect. Combined with the sealing fit of the first flexible lip 402 and the adhesive fixation of the medical pressure-sensitive adhesive layer 403, dual fixation of the device to the patient's skin is achieved, effectively preventing the device from shifting or falling off during the patient's daily activities, while also preventing drug leakage.

[0028] Please see Figure 8 A multi-layer sustained-release component 8 for the herbal drops is fixedly installed inside the sustained-release chamber 3. The multi-layer sustained-release component 8 is coaxially fixedly installed in the internal cavity of the sustained-release chamber 3, used for multi-stage sustained-release regulation of the flowing herbal drops to achieve stable and continuous release of the drug. The multi-layer sustained-release component 8 includes, from top to bottom, a first porous sustained-release disc 801, a second porous sustained-release disc 802, and a third porous sustained-release disc 803 arranged coaxially. All three discs are made of medical-grade ultra-high molecular weight polyethylene microporous material, possessing good biocompatibility, chemical stability, and drug permeability. Elastic rubber rings 804 are fixedly installed between each of the three discs, using medical-grade silicone rubber. Made of adhesive material, its upper and lower ends are fixedly bonded to adjacent porous sustained-release discs to form a sealed buffer chamber. It also has excellent axial elastic deformation capability. The pore size of the first porous sustained-release disc 801, the second porous sustained-release disc 802, and the third porous sustained-release disc 803 gradually decreases from top to bottom. Through the multi-layered microporous structure with different pore sizes, it generates a continuous graded damping effect on the flow of the drug solution, so that the drug solution is released uniformly at a stable and slow flow rate, avoiding excessively high local drug concentration peaks caused by a large influx at one time. At the same time, it can effectively filter particulate impurities in the drug, ensuring the safety of drug administration.

[0029] Please see Figure 3 and Figure 9The lower end of the sustained-release chamber 3 is fixedly equipped with a drug delivery component 5 corresponding to the multi-layer sustained-release component 8. The drug delivery component 5 is used to apply medication to the patient's navel area, accurately delivering the medication released by the multi-layer sustained-release component 8 to the patient's navel acupoint area. The medication delivery component 5 includes a corrugated sleeve 501, which is integrally molded from medical-grade silicone rubber and has excellent axial extensibility and radial flexibility. It can adaptively expand and contract with the slight movement of the patient's navel. The upper end of the corrugated sleeve 501 is coaxially and fixedly connected to the lower end of the sustained-release chamber 3. A second flexible lip 502 is fixedly installed at the lower end of the corrugated sleeve 501. The second flexible lip 502 is made of medical-grade ultra-thin soft silicone rubber and can conform to the contour of the skin around the patient's navel to form a stable sealing structure and prevent the medication from leaking from the edge of the navel. A matching medication delivery core 503 is embedded in the inner side of the corrugated sleeve 501. The upper end of the medication delivery core 503 abuts against the lower surface of the third porous sustained-release disc 803. The medication released by the multi-layer sustained-release component 8 can reach the medication delivery core 503 and be delivered to the patient's navel area through the medication delivery core 503 to complete the medication delivery.

[0030] Please see Figure 10 The medication application core 503 includes a capillary fluid guide 5031, which is made of a hydrophilic nonwoven fabric composite of medical-grade degreased cotton fiber and polyester fiber. It possesses excellent capillary conduction and retention properties, allowing the medication to be slowly and evenly released onto the patient's navel skin surface through capillary action, achieving continuous medication application. Fixing rings 5032 are coaxially fixed at both ends of the capillary fluid guide 5031. The fixing rings 5032 are made of medical-grade polypropylene. Multiple connecting posts 5033 are fixedly installed between 5032 and evenly distributed along the circumference. The connecting posts 5033 are made of medical-grade polypropylene and are integrally injection molded with the fixing rings 5032. The fixing rings 5032 and the connecting posts 5033 cooperate to form a rigid support frame, which can fix the capillary fluid 5031 in shape and prevent the capillary fluid 5031 from deforming or shifting after being squeezed. At the same time, it can evenly transmit the axial pressure to the multi-layer slow-release components 8 to ensure the stability of pressure transmission.

[0031] For the second embodiment, please refer to [link / reference]. Figure 3 and Figure 6Based on the first embodiment, an inertial throttle 7 is fixedly installed at the connection between the manual valve 6 and the sustained-release chamber 3. The main structure of the inertial throttle 7 is made of medical-grade polypropylene and is used to control the fluctuation of drug dosage in the dynamic state of the patient, ensuring the stability of the drug delivery rate. The inertial throttle 7 includes a throttle column 701, which is coaxially fixedly installed in the connection passage between the manual valve 6 and the sustained-release chamber 3. Multiple leakage channels 702 are evenly distributed around the circumference on the outer wall of the throttle column 701. The leakage channels 702 extend along the axial direction of the throttle column 701, providing a downward flow path for the drug. An external elastic airbag 703 is fixedly installed on the inner wall of the leakage channel 702. The external elastic airbag 703 is made of medical-grade silicone rubber and has good elastic deformation capability and reset performance. A cylindrical cavity is opened at the center of the throttle column 701, and a ring is formed around the inner wall of the cavity. The system includes an annular non-elastic airbag 704, made of medical-grade polyurethane composite membrane. It lacks elastic deformation capability and can only expand and contract through changes in internal gas volume. Alternatively, a protective net can be added to the outer surface of the annular non-elastic airbag 704, allowing only unilateral concave deformation. The annular non-elastic airbag 704 is interconnected with each of the external elastic airbags 703 via a connecting pipe embedded within a throttling column 701 to ensure structural sealing. An inertial mass sphere 705, made of medical-grade 304 stainless steel, is positioned at the center of the cavity. Sufficient mass is provided to respond to the inertial force generated by changes in body position. The outer wall of the inertial mass sphere 705 abuts against the inner wall of the annular non-elastic air bladder 704. An elastic column 706 is fixedly installed between the lower center of the inertial mass sphere 705 and the bottom center of the cavity. The elastic column 706 is made of medical-grade silicone rubber and has excellent axial elastic deformation capacity and reset performance. Under normal conditions, after the manual valve 6 is opened, the medication can slowly flow downward into the sustained-release chamber 3 through the leakage channel 702. When the patient moves, the inertial mass sphere 705 can respond to the inertial force to overcome the elastic force of the elastic column 706. The displacement of the air bladder compresses the annular non-elastic air bladder 704, forcing the gas inside the annular non-elastic air bladder 704 into the outer elastic air bladder 703. This causes the outer elastic air bladder 703 to expand, filling the flow gap of the leakage channel 702, thus throttling and limiting the flow of the medication and preventing a sudden increase in medication flow due to changes in body position. When the patient returns to a normal position, the elastic column 706 can drive the inertial mass ball 705 to reset, and the outer elastic air bladder 703 returns to its initial shape under its own elastic force, sending the gas back into the annular non-elastic air bladder 704. The leakage channel 702 then returns to its normal flow area, ensuring a stable drug delivery rate.

[0032] Working principle: Before administration, the filling and quantitative operation of the medicine are completed first. Rotate the rotating cover 201 of the adjusting cover 2 to drive the adjusting screw 202 to retract along the axis of the medicine storage chamber 1, and drive the piston 203 to move upward to adjust the storage space inside the medicine storage chamber 1. Combined with the scale on the outer wall of the medicine storage chamber 1, the required dosage is determined. Then, remove the sealing cap 2041 of the dosing component 204 to open the dosing channel 2043. The traditional Chinese medicine umbilical herbal drops are injected into the medicine storage chamber 1 through the dosing channel 2043. During the injection, the balancing vent 205 realizes the air pressure balance between the inside of the medicine storage chamber 1 and the outside, ensuring smooth injection of the medicine. The waterproof and breathable membrane 206 prevents the medicine from leaking out of the balancing vent 205 and isolates external pollution. After the medicine is injected, the sealing cap 2041 is reset, and the filling column 2042 completely fills the internal space of the dosing channel 2043 to avoid medicine residue and seal the dosing channel 2043, thus completing the quantitative storage of the medicine.

[0033] During drug administration, the drug delivery component 5 of the device is aligned with the patient's navel area (Shenque acupoint), with the lower end of the drug delivery core 503 aligned with the navel depression. The second flexible lip 502 is attached to the skin around the navel. Then, the flexible suction cup 401 of the adsorption component 4 is pressed to expel the air inside and form a negative pressure adsorption. Combined with the sealing and adhesion of the first flexible lip 402 and the adhesion and fixation of the medical pressure-sensitive adhesive layer 403, the device is reliably fixed to the patient's navel skin, completing the positioning and installation of the device.

[0034] Then, the manual valve 6 is opened, and the herbal drops stored in the medicine storage chamber 1 flow into the leakage channel 702 of the inertial throttle device 7 under the action of gravity. Under normal body position, the leakage channel 702 maintains a normal flow area, and the medicine flows into the multi-layer slow-release component 8 inside the slow-release chamber 3 through the leakage channel 702. The medicine first enters the first porous slow-release plate 801, and is initially guided and buffered by the microporous structure with a large pore size. Then, it flows through the second porous slow-release plate 802 and the third porous slow-release plate 803 in sequence. The progressively decreasing pore size forms a graded damping effect, which regulates the flow of the medicine and releases it downwards at a stable and slow flow rate, avoiding a large influx of medicine in a short period of time.

[0035] After being released by the multi-layer sustained-release component 8, the drug flows into the drug delivery core 503 of the drug delivery component 5. Through the capillary action of the capillary fluid 5031, the drug is evenly and continuously delivered to the skin surface of the patient's navel, realizing umbilical therapy drug delivery. The second flexible lip 502 fits the skin around the navel to prevent the drug from leaking from the edge of the navel, causing drug waste and clothing contamination.

[0036] During normal breathing and slight changes in body position, the umbilicus will undergo axial slight movement due to changes in abdominal pressure. At this time, the corrugated sleeve 501 of the drug delivery component 5 can adaptively expand and contract axially with the slight movement of the umbilicus. When the abdominal pressure increases and the umbilicus bulges outward, the corrugated sleeve 501 is squeezed and contracts upward, causing the drug delivery core 503 to move upward, forming a weak axial compression effect on the multi-layer sustained-release component 8. The elastic rubber rings 804 between the multi-layer sustained-release components 8 are compressed axially after being squeezed, reducing the buffer chamber space between adjacent porous sustained-release discs and increasing the hydraulic pressure inside the chamber, which promotes faster drug penetration through the multi-layer sustained-release components. The release structure ensures a stable drug release rate. When the abdominal pressure decreases and the umbilicus is repositioned, the corrugated sleeve 501 and the drug-loaded core 503 reposition downwards under their own elastic force, eliminating the squeezing effect on the multi-layer sustained-release component 8. The elastic rubber ring 804 returns to its initial shape under its own elastic force, increasing the buffer chamber space between adjacent porous sustained-release discs and forming a negative pressure adsorption effect. This causes the drug at the manual valve 6 and the inertial throttle 7 to flow rapidly into the chamber of the multi-layer sustained-release component 8 for replenishment, ensuring a continuous supply of drug and avoiding problems such as drug interruption or drug accumulation. This achieves adaptive drug delivery regulation that matches the patient's physiological activities.

[0037] When a patient undergoes significant positional changes such as turning over or coughing, the inertial mass ball 705 of the inertial throttle device 7 responds to the inertial force generated by the positional change, overcoming the elastic force of the elastic column 706 and undergoing radial displacement. This compresses the peripheral annular non-elastic airbags 704. Since the annular non-elastic airbags 704 do not have elastic deformation capabilities, the gas inside them is forced into the interiors of each outer elastic airbag 703 through the connecting pipe, causing the outer elastic airbags 703 to expand. This fills the flow gap of the drug leakage channel 702, reduces the flow area, and creates a throttling and flow-limiting effect on the medication. This effectively avoids a sudden increase in drug flow caused by changes in body position, preventing adverse reactions caused by excessively high local drug concentrations. When the patient returns to a normal position, the inertial force disappears, and the elastic column 706, under its own elastic force, drives the inertial mass ball 705 to reset, eliminating the squeezing effect on the annular non-elastic airbag 704. The external elastic airbag 703, under its own elastic force, returns to its initial shape, sending the internal gas back into the annular non-elastic airbag 704. The leakage channel 702 returns to its normal flow area, and the drug returns to its normal sustained-release flow rate, ensuring the stability and uniformity of the drug administration process.

[0038] After administration, close the manual valve 6 to release the negative pressure adsorption and adhesive fixation of the adsorption component 4, and remove the device from the patient's skin. If reuse is required, the components of the device can be disassembled, cleaned and disinfected, and then the medication can be replenished for reuse. If long-term continuous administration is required, the medication can be replenished directly through the medication addition component 204 after the medication is used up, without disassembling the device, making the operation convenient.

[0039] The above are merely preferred embodiments of the present invention; they encompass all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy, comprising a graduated storage chamber (1), characterized in that: The upper end of the medicine storage chamber (1) is threaded with an adjustment cap (2) for quantitative herbal drops. The lower end of the medicine storage chamber (1) is fixedly installed with a connected manual valve (6). The lower end of the manual valve (6) is fixedly installed with a connected sustained-release chamber (3). The outer end of the sustained-release chamber (3) is fixedly installed with an adsorption component (4) that fits the patient's skin. The inner side of the sustained-release chamber (3) is fixedly installed with a multi-layer sustained-release component (8) for sustained-release herbal drops. The lower end of the sustained-release chamber (3) is fixedly installed with a drug application component (5) corresponding to the multi-layer sustained-release component (8). The drug application component (5) is used to apply the drug to the patient's umbilical area.

2. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 1, characterized in that: The adjusting cover (2) includes a rotating cover body (201), an adjusting screw (202) is fixedly installed at the lower end of the rotating cover body (201), and a piston (203) is fixedly installed at the lower end of the adjusting screw (202).

3. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 2, characterized in that: The adjusting cover (2) also includes a dosing assembly (204) for replenishing herbal drops. The rotating cover (201) has a balancing vent (205) extending to the bottom of the piston (203). A waterproof and breathable membrane (206) is fixedly installed at the bottom of the balancing vent (205).

4. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 3, characterized in that: The dosing assembly (204) includes a sealing cap (2041), a filling column (2042) is fixedly installed at the lower end of the sealing cap (2041), and a dosing channel (2043) extending to the bottom of the piston (203) is also provided on the rotating cover (201), and the filling column (2042) matches the dosing channel (2043).

5. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 1, characterized in that: The multi-layer sustained-release assembly (8) includes, from top to bottom, a (801), a second porous sustained-release disc (802), and a third porous sustained-release disc (803). Each of the (801), the second porous sustained-release disc (802), and the third porous sustained-release disc (803) is fixedly mounted with an elastic rubber ring (804). The pore size of the (801), the second porous sustained-release disc (802), and the third porous sustained-release disc (803) gradually decreases.

6. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 1, characterized in that: The adsorption component (4) includes a flexible suction cup (401), a first flexible lip (402) is fixedly installed at the lower end of the flexible suction cup (401), and a medical pressure-sensitive adhesive layer (403) is fixedly installed on the inner side of the bottom of the flexible suction cup (401).

7. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 1, characterized in that: The drug delivery assembly (5) includes a corrugated sleeve (501), a second flexible lip (502) is fixedly installed at the lower end of the corrugated sleeve (501), and a matching drug delivery core (503) is embedded in the inner side of the corrugated sleeve (501).

8. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 7, characterized in that: The drug-filled core (503) includes a capillary guide (5031), and a fixing ring (5032) is fixedly installed at both the upper and lower edges of the capillary guide (5031). A plurality of circumferentially distributed connecting posts (5033) are fixedly installed between the fixing rings (5032).

9. The quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 1, characterized in that: An inertial throttle (7) is fixedly installed at the connection between the manual valve (6) and the sustained-release chamber (3). The inertial throttle (7) is used to control the fluctuation of drug dosage in the dynamic state of the patient.

10. A quantitative sustained-release herbal drop delivery device for traditional Chinese medicine umbilical therapy according to claim 9, characterized in that: The inertial throttle (7) includes a throttle column (701), on the outer wall of the throttle column (701) are multiple circumferentially distributed leakage channels (702), on the inner wall of the leakage channels (702) are fixedly installed with an outer elastic airbag (703), the throttle column (701) has a cavity inside, and an annular non-elastic airbag (704) is arranged around the side wall of the cavity, and the annular non-elastic airbag (704) and the outer elastic airbag (703) are connected by a pipe, and an inertial mass ball (705) that abuts against the annular non-elastic airbag (704) is arranged at the center of the cavity, and an elastic column (706) is fixedly installed at the center of the lower end of the inertial mass ball (705) and the center of the bottom of the cavity.

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