88 results about "Esophagus" patented technology

The invention discloses an esophageal adenocarcinoma plasma circulation microbial marker combination, a reagent, a kit, a risk prediction model and application thereof, and belongs to the cross technical field of liquid biopsy and microbiomics. The esophageal adenocarcinoma plasma circulating microbial marker combination disclosed by the invention comprises enterobacteriaceae, cilia, prevotella, ackermania, lactobacillus fermentum and streptococcus. When the esophageal adenocarcinoma plasma circulating microbial marker combination is used for verifying esophageal adenocarcinoma patients and healthy controls, the AUC is 0.952, the sensitivity is 100%, the specificity is 80.00%, the accuracy is 91.43%, the positive predictive value is 86.96%, and the negative predictive value is 100%; the esophageal adenocarcinoma plasma circulating microbial marker combination can effectively distinguish esophageal adenocarcinoma patients from healthy people, is suitable for early screening of esophageal adenocarcinoma, and has remarkable clinical screening application value.

The invention relates to the technical field related to ultrasonic detection, in particular to a method and a device for acquiring an angle of a transesophageal ultrasonic image in a preoperative CT image guidance operation. The method comprises the following steps: acquiring a heart and esophagus cutting model based on a CT image; the heart and esophagus cutting model comprises a heart model and an esophagus model; determining a long-axis section of the heart based on the heart model; determining an esophagus center line based on the esophagus model; selecting a point closest to the long-axis tangent plane in the central line of the esophagus as an ultrasonic irradiation position; the long-axis section of the heart is corrected based on the ultrasonic irradiation position, so that the long-axis section passes through the ultrasonic irradiation position, and the corrected long-axis section is obtained; and determining the angle of the ultrasonic probe based on the corrected long-axis tangent plane and the tangent plane of the esophageal center line at the ultrasonic irradiation position. By means of the arrangement, a doctor can obtain the intraoperative ultrasonic irradiation angle during preoperative planning, and the operation is more accurate and normative.

The invention discloses an ultrasonic imaging system and method based on a heart surface, a medium and a product, the system comprises an ultrasonic detection assembly and an imaging terminal which are in communication connection, an ultrasonic transducer is packaged at the head end of an attached ultrasonic probe in the ultrasonic detection assembly, and an acoustic window on the ultrasonic transducer is planar; the ultrasonic transducer is used for being attached to the surface of the heart or the aorta, and the plane of the ultrasonic transducer is parallel to the plane of the acoustic window; and the imaging terminal is used for generating a sound velocity mask pattern according to the reference ultrasonic image, determining echo time delay data according to the sound velocity mask pattern, synthesizing and reconstructing the radio frequency signal data according to the echo time delay data to obtain an ultrasonic image, performing motion compensation on the image sequence, performing multi-modal fusion on the ultrasonic image subjected to motion compensation, and obtaining a final ultrasonic image. The problem of acoustic interference of anatomical structures such as the chest wall and the esophagus in a traditional echocardiography technology is solved, and real-time and high-quality image support is provided for cardiac surgery.

The invention provides a stomach tube space registration and dynamic positioning method based on historical features, and relates to the technical field of medical instruments, and the method comprises the following steps: data acquisition: recording a catheterization path curve when the catheterization of a patient succeeds, and determining the catheterization path curve as a physiological feature curve; data calibration: marking coordinates of key feature points such as an airway opening, key parts of an esophagus and a stomach entrance on the physiological feature curve; space registration: registering the real-time catheter advancing curve and the physiological characteristic curve in the same coordinate system, and aligning data; dynamic positioning: calculating the position deviation of the front end of the stomach tube, dynamically calibrating based on a deviation value, and controlling the stomach tube to move along a physiological characteristic curve, in the data acquisition step, the physiological characteristic curve is used as a historical reference for path matching in a subsequent tube indwelling process, and in the data calibration step, the tube indwelling control precision is improved by more than or equal to 15% by dividing characteristic sections; and by utilizing a historical physiological curve, the catheterization path deviation is less than or equal to 2mm, and the control precision is improved by 30%.

The invention relates to the technical field of drug delivery, in particular to silk-based oral hydrogel as well as a preparation method and application thereof. The invention discloses and provides a preparation method of a hydrogel material which is based on fibroin, can be subjected to rapid gelation reaction and can be swallowed, subjected to gastric retention and enteric-coated. The material can be used for entrapment and multi-drug joint co-loading of water-phase soluble drugs or insoluble drugs. The hydrogel has the characteristics of excellent mechanical properties and shear thinning, is easy to swallow, and can effectively penetrate through the esophagus to enter the gastrointestinal tract. The hydrogel can be retained in the stomach for more than 24 hours, and responds to pancreatin in the enteric cavity to be degraded and release the entrapped medicine. In conclusion, the fibroin-based hydrogel capable of being swallowed, retained in the stomach and enteric, which can be subjected to rapid gelation reaction, has relatively high application value in the fields of oral drug carriers, oral health-care products, wound gel dressings, antibacterial materials and the like.

The present invention relates to a catheter construction and method of use suitable for use in navigating within a body lumen or vessel, such as a vein, artery, nasal cavity, esophagus, etc. to assist in the performance of various procedures. The device can include a flexible tubular member having a proximal end, a distal end, and channel extending substantially between the proximal end and the distal end, a stiffening sleeve positioned at the distal end of the tubular member to provide stiffness thereto so that a removable procedural tool can be attached to the tubular member, and an elongated non-elastic tether situated within the channel of the tubular member and secured at one end to the distal end of the member, such that when the tether is held in tension, the tether acts to minimize the tubular member from deviating from a neutral state.

The invention relates to the technical field of oral care, in particular to an unconscious patient oral foreign matter cleaning device which comprises a seat body, two fastening belts with one ends mounted on the front side and the rear side of the seat body respectively and a central airway tube mounted in a mounting shell at the head of the seat body, and an elastic air bag mounted at the head of the central airway tube. A cleaning module is mounted in the middle through a rotary operation pipe, and an adsorption part is arranged between the cleaning module and the rotary operation pipe; the cleaning control center is arranged at the tail of the central airway tube and connected with the cleaning module through a cleaning liquid tube and an air tube, and the problems that in the prior art, due to the fact that a patient does not have the autonomous swallowing and closing capacity, foreign matter easily enters the airway by mistake, choking is caused, and the safety risk is high are solved; the visual field in the oral cavity is poor, the operation space is narrow, and manual or conventional instruments are difficult to clean comprehensively; an airway protective isolation structure is lacked, and cleaning fluid easily enters the esophagus and the airway and cannot adapt to the special physiological status of the coma patient.

The invention discloses an esophagus information detection method and system, a processing method and device and a storage medium. The esophagus information detection method comprises the steps that first feature information shown by an accessory when a sampling device is located at the cardia part is obtained; obtaining esophageal sampling data detected by the sampling device between the cardia part and the esophageal starting part; obtaining second feature information shown by the accessory when the sampling device is located at the starting part of the esophagus; determining scale information according to the first feature information and the second feature information; determining esophageal state information relative to a world coordinate system according to the scale information and the esophageal sampling data. According to the esophageal information detection method provided by the invention, esophageal state information relative to a world coordinate system can be constructed as intermediate data and can be used for recovering an absolute size and providing accurate reference for subsequent diagnosis and treatment.

The invention discloses an esophagus medicine applying device for a patient in the digestive system department, and relates to the field of medical equipment, the esophagus medicine applying device comprises a medicine applying pipe, an air pipe is fixedly mounted at the bottom of the outer surface of the medicine applying pipe, and a protective air bag is fixedly mounted on one side of the medicine applying pipe and one side of the air pipe; a pressure sensor is installed on the edge portion of one side of the outer surface of the extending pipe, a dosing mechanism is arranged on the outer surface of the medicine applying pipe and used for adjusting different types of dosing modes, the dosing mechanism comprises a dosing connecting part, the dosing connecting part is fixedly installed on the position, close to the upper portion of the protective air bag, of the outer surface of the medicine applying pipe, and a fixing groove is formed in the middle of one side of the outer surface of the dosing connecting part; the closed administration area is formed by inflating the protective air bag, and by matching with real-time monitoring of the pressure sensor, medicine is effectively prevented from flowing back to the stomach and entering the airway by mistake, discomfort such as nausea and sour regurgitation of a patient is reduced, lung injury is avoided, and the administration safety is improved compared with the prior art.

Methods are disclosed for dissecting a mucosa and a submucosa from a muscularis propria from a region of an organ of a subject, wherein the organ is not the esophagus. In some embodiments, the organ is in the gastrointestinal tract. These methods include injecting submucosally into the organ of the subject a pharmaceutical composition comprising an extracellular matrix (ECM) hydrogel to form a cushion between the submucosa and the underlying muscularis propria at the region of the organ, wherein the ECM hydrogel has the following characteristics: a) a time to 50% gelation of less than 30 minutes at a temperature of about 37° C.; b) a flow viscosity suitable for infusion into the organ; and c) a stiffness of about 10 to about 400 Pascal (Pa).

Disclosed in the present invention are a superconducting magnet system for esophageal atresia traction anastomosis, and a method. The system comprises: a superconducting magnet device, a movable flat plate, a support, a ferromagnetic core and a permanent magnetic core, wherein the movable flat plate is movably arranged inside a central hole of the superconducting magnet device, the support is fixedly connected to the superconducting magnet device, and the ferromagnetic core and the permanent magnetic core are placed inside the central hole of the superconducting magnet device and are respectively located at a proximal esophageal end and a distal esophageal end of an esophageal atresia target; the superconducting magnet device is configured to generate a uniform magnetic field and a gradient magnetic field inside the central hole; and the ferromagnetic core and the permanent magnetic core are configured to provide opposite traction forces for the esophageal atresia target under the uniform magnetic field and the gradient magnetic field. According to the present application, by combining the uniform magnetic field, the gradient magnetic field, the ferromagnetic core and the permanent magnetic core, opposite traction forces that have adjustable magnitudes and that do not require directional adjustment are provided for the esophageal atresia target, thereby improving the traction force intensity, control flexibility and control precision.

The utility model discloses a kind of gastric cavity plugging catheters of gastrostomy in the medical instrument technical field, the device increases plugging balloon and sealing clamping piece, can be held by inside and outside, hold stomach wall and skin to position the device, while plugging balloon seals and isolates the puncture of stomach wall inside gastric cavity, effectively avoid gastric juice to flow out, avoid gastric juice to overflow along the puncture and cause skin burning;Positioning baffle is also increased, can be unfolded inside duodenum, positioning baffle can position nutrition tube, avoid nutrition tube to slide and separate, can also effectively block pylorus, effectively avoid enteric digestive juice to enter stomach, and do not hinder gastric juice to flow into intestine normally, and by pressure relief port and pressure relief pipe, stomach is conveniently decompressed, effectively avoid that pressure is too high and nutrition liquid is refluxed to esophagus.

The invention relates to the technical field of medical instruments, and particularly discloses a catheter structure, an external chest compression system and a pressure regulation and control method. The catheter structure comprises a catheter body, a positioning bag body, at least two esophageal bag bodies, a pressure adjusting assembly, a pressure monitoring assembly and a controller, the positioning bag body is connected to the far end of the catheter body, and the esophageal bag bodies are sequentially arranged in the direction of the side, close to the near end, of the positioning bag body; the pressure adjusting assembly is communicated with the positioning bag body and each esophageal bag body through each independent pipeline; the pressure monitoring assembly is used for collecting real-time pressure data in each esophageal capsule; the controller is used for controlling the pressure adjusting assembly to adjust the pressure in each esophageal capsule in combination with a compression signal fed back by external chest compression equipment and pressure data collected by the pressure monitoring assembly. The esophageal capsule bodies are arranged in a sectional mode, the pressure in the esophageal capsule bodies can be flexibly controlled according to the external chest compression rhythm, the extrusion effect of the back wall of the heart is improved, and then the external chest compression effect and efficiency are improved.

This invention relates to the field of medical device technology, and more particularly to a portable multi-channel glottis. It includes an external cylinder, to which an air guide tube is fixedly connected, and to which a flow guide tube is fixedly connected. An inflation cylinder is fixedly connected to the external cylinder, and the flow guide tube is also fixedly connected to an inflation cylinder. A flow-blocking unit is provided on the inflation cylinder. The flow-blocking unit includes spaced-apart first convex rings, which are connected to the inflation cylinder, and spaced-apart second convex rings are connected to the inflation cylinder. This invention, through the shape design and staggered arrangement of the first and second convex rings, forms several annular cavities with opposite volume changes in the patient's esophagus. When the first and second convex rings are compressed by refluxed gastric juice, the reaction forces provided by adjacent annular cavities after compression have different directions. These different directions of reaction forces can effectively disperse external forces, reduce the deformation of the first and second convex rings, and thus reduce the probability of seal failure.

The invention discloses an AI intelligent identification visual nasogastric tube, and relates to the technical field of medical instruments, the AI intelligent identification visual nasogastric tube comprises a nasogastric tube body and a guide wire body, one end of the nasogastric tube body is provided with a monitoring end, the other end of the nasogastric tube body is provided with a tube joint, and the nasogastric tube body is internally provided with a main channel, an auxiliary channel and a data channel; a first data line is arranged in the data channel, and one end of the first data line is in electric signal connection with a first camera module; the first camera module is a waterproof medical camera, the first data line is an optical fiber, the data channel and the first data line are sealed through silica gel, and the first data line is connected with an external monitoring terminal through a data interface. The high-definition waterproof medical camera arranged in the monitoring end is deeply combined with the AI algorithm, the probability that the nasogastric tube enters the trachea by mistake is reduced by collecting the characteristics of the inner wall of the alimentary canal in real time and automatically distinguishing the airway and the esophagus inlet, and the AI model can learn individualized anatomical differences, dynamically adjust the recognition threshold value and meet the requirements of different patients.

Provided herein is a method of administering a therapeutic for a pancreatic disorder to a subject in need thereof, the method comprising (a) advancing an endoscope comprising a needle through the oropharynx and esophagus of the subject and into the stomach; (b) advancing the needle out of the stomach and into the retroperitoneal cavity of the subject; and (c) administering the therapeutic through the endoscope into the retroperitoneal cavity.

The utility model belongs to the technical field of neck fixing pillows, and particularly relates to a neck supporting and fixing pillow which comprises an angle adjusting mechanism and a height adjusting mechanism, the angle adjusting mechanism is used for adjusting the angle of the head of a patient, and the height adjusting mechanism is located in front of the angle adjusting mechanism and used for adjusting the height of the neck of the patient. The fixing mechanisms are located on the left side and the right side in front of the height adjusting mechanism and used for fixing the patient and the fixing pillow. According to the utility model, the zipper head is matched with the adjusting zipper to control and drive the supporting head pillow to incline forwards, so that the sponge cushion in the front supporting neck pillow leans forwards to complete the angle adjustment, the jaw of a patient is closer to the chest, and the secondary injury of the patient caused by the rupture of an airway or esophageal surgical incision is prevented.

A simulated airway for training and practicing medical procedures has an upper jaw having simulated teeth, a nasal passage, a tongue, an epiglottis, a larynx, a trachea, an esophagus, and vocal cords. Portions of the airway are reinforced with fabric. A method of making a human airway model for simulation of medical procedures includes sculpting a core for a mold from a resin material, depositing a layer of clay on the core, and placing the core in a mold. The layer of clay is removed and a polymer is injected into the mold.

The utility model discloses a multifunctional trachea cannula catheter which comprises a base section and a pilot section. The multifunctional trachea cannula catheter is provided with an oxygen channel and a working channel side by side, the oxygen channel and the working channel both penetrate through the pilot section and the basic section, and the pilot section is suitable for being in a normal state and keeping a bending angle relative to the basic section during use. Compared with the prior art, the catheter has certain hardness, when the catheter is inserted into the oral cavity and the glottis, the catheter does not need to swing and twist for plasticity, and the catheter is not prone to bending and entering the esophagus by mistake; the catheter has a certain bending angle and hardness, so that the requirement of a doctor on the backward leaning of the head of a patient is reduced during intubation; the catheter is not easy to bend due to the pressing of the epiglottis, the catheter can supply oxygen uninterruptedly, and the breathing problems such as upper airway obstruction of a patient are solved; sputum in the oral cavity can be sucked out conveniently, and the visual field is kept clear.

The invention relates to the technical field of intestinal obstruction catheters, and particularly discloses a novel intestinal obstruction catheter placed through abdominal wall-stomach fistulization, the novel intestinal obstruction catheter comprises a cannula, an abdomen and a stomach, one end of the cannula penetrates through the abdomen and the stomach under the guidance of a gastroscope, a first fixing mechanism is arranged at one end of the cannula, and a first through hole and a second through hole are formed in the cannula; a catheter body and a nutrient canal are installed in the first through hole and the second through hole respectively, a fixing end is installed at the other end of the cannula, a connecting opening is formed in one end of the catheter body, and a sheath tube is inserted in the connecting opening. According to the intestinal obstruction catheter, the cannula is directly installed in the stomach of a patient, and then the catheter body penetrates through the cannula and is placed in the intestinal tract of the patient, so that the situation that the catheter body directly penetrates through the nostril-esophagus of the patient to cause great pain to the patient, especially the patient needing to place the intestinal obstruction catheter for a long time, is avoided; and the catheter body is matched with the nutrition tube, so that nutrition can be conveniently supplied to the intestines, and the malnutrition condition of the patient is avoided.

The utility model relates to the technical field of medical instruments, in particular to a digestive tract foreign body taking-out protection device which comprises an endoscope pipeline, an annular sleeve is coaxially fixed to one end of the endoscope pipeline, a gastroscope body coaxially penetrates into the endoscope pipeline, the annular sleeve is provided with an anti-bite mechanism in a matched mode, and the annular sleeve is further provided with a pipeline supporting mechanism in a matched mode. The gastroscope body is provided with a first air bag mechanism in a matched mode. The end, away from the annular sleeve, of the endoscope pipeline is provided with a second air bag mechanism in a matched mode. When foreign matters are taken out, the esophagus cannot be damaged, meanwhile, an endoscope pipeline is prevented from being damaged, the use effect is more flexible and convenient, the pain of a patient is effectively reduced, and the overall working efficiency is higher.

This invention relates to the field of medical device technology, and in particular discloses an intelligent anti-shake and anti-scalding spoon to assist elderly people with tremors in eating. It features a handheld handle unit and a detachable functional spoon head unit. A temperature sensor is installed at the center bottom of the spoon head in the functional spoon head unit. The inner chamber of the handheld handle unit is divided into compartments from front to back, each housing a dual-axis decoupling stabilization mechanism, a control unit, a power supply battery, and a display screen. This constructs a multi-dimensional active anti-scalding warning system, completely avoiding food safety risks and preventing burns to the mouth and esophagus caused by hand movement incoordination or impaired perception, significantly improving dining safety. It also optimizes the age-friendly human-computer interaction experience, breaking down digital barriers. Without relying on a mobile app, patients can intuitively view food temperature in real time while eating, alleviating dining anxiety. Simultaneously, the rear-positioned handle structure design and anti-slip handle conform to the physiological grip habits of the elderly, preventing slippage and providing high comfort.

The devices, systems, and methods disclosed herein may be directed to a delivery system including a therapeutic member configured for endoluminal placement via the delivery system into the esophagus of the patient, wherein the therapeutic member comprises a treatment portion comprising a film for controlled release of a chemotherapeutic agent. The film may comprise a control region, a therapeutic region, and a substantially impermeable base region. The film is configured to release the chemotherapeutic agent in a direction away from the substantially impermeable base region. The delivery system is configured to enable a treatment provider to position the treatment portion of the therapeutic member proximate to a treatment site associated with the esophagus of the patient, and the therapeutic member is configured to administer a therapeutically effective dose to the treatment site for a sustained period following endoluminal placement of the therapeutic member.

The utility model provides a gavage device which comprises an injection tube and a gavage needle which are connected through an installation head, a push rod is arranged in the injection tube, the gavage needle comprises a stainless steel gavage needle and a cover body which is sleeved on the outer edge of the stainless steel gavage needle, the cover body is of a trumpet-shaped structure with a round hole in the center, the round hole is sleeved on the outer edge of the stainless steel gavage needle, and the stainless steel gavage needle is sleeved on the round hole. A sponge ring is attached to the inner wall of the cover body. The traditional Chinese medicine compound liquid medicine lavage device is particularly suitable for lavage experiments of traditional Chinese medicine compound liquid medicine, facilitates repeated lavage of experimental animals such as mice and the like, can effectively prevent the liquid medicine from overflowing and blocking a tube during lavage, reduces discomfort of the experimental animals, reduces damage to esophagus of the experimental animals, and can ensure that the head and the neck of the mice are in a vertical state during lavage.

A method comprising a nasogastric tube comprising a feeding mechanism, a suction mechanism configured to sealingly draw an inner wall of an esophagus against said nasogastric tube, and a gastric decompression mechanism.

The invention discloses an anti-reflux stomach tube, which relates to the technical field of medical instruments and comprises a tube body and a connector connected with one end of the tube body. The head end is installed at the other end, away from the connector, of the pipe body, the top end of the head end is spherically closed, and a side hole is formed in the side wall; the air bag assembly sleeves the outer side of the tube body, and one end of the air bag assembly is fixedly connected with the tube body; the air bag assembly is folded towards the center, and the outer surface of the air bag assembly is tightly attached to the inner wall of the stomach tube. The device has the beneficial effects that micro gaps around the tube are actively blocked through radial expansion of the air bag assembly, and a reflux path of gastric contents is effectively blocked; operation is easy and convenient and can be completed through single-hand stretching; the supporting part shrinks and punctures the inner wall when being taken out, the tip is wrapped by wrinkles after gas is exhausted, esophageal mucosa injury is avoided, and clinical safety and use convenience are remarkably improved.

This invention discloses a liquid food feeding device, belonging to the field of medical clinical medical device technology. It includes a pressurizing component, a sealing cup component, and a silicone connector. A rubber hose is connected to one side of the pressurizing component, and the other end of the rubber hose is connected to the sealing cup component. A silicone connector is also connected to the side of the sealing cup component. This invention solves the problems of traditional devices that use a push rod to force liquid food into the patient's esophagus via a piston. Firstly, the flow rate cannot be well controlled during liquid feeding; excessive speed can lead to bloating or other discomfort. Secondly, pushing in viscous liquid food is difficult. This invention uses a rubber balloon as the power device, replacing the original push rod, and adjusts the air pressure as a buffer, achieving a better and more stable flow rate. A sealing cup is used to hold the liquid food, replacing the original tube. The use of a rubber balloon for pressurization achieves a labor-saving effect.

This utility model discloses an auxiliary traction device for gastroscopy, relating to the field of medical auxiliary instruments. It includes an anterior oral plate, one end of which is fixedly connected to a connecting strap, and the other end of which has an adhesive structure for fixing the end of the connecting strap. A tube-penetrating hole is formed through the middle of the anterior oral plate, and a U-shaped groove is formed on the lower side of the tube-penetrating hole. A supporting structure drives the outer side of a tongue depressor to rotate upwards, and under the action of leverage, the other end of the tongue depressor presses down on the tongue surface. The endoscope tube is then inserted into the esophagus through the tube-penetrating hole. After the lens of the endoscope tube is moved to the lesion site, a U-shaped sleeve is pressed down. During the downward rotation of the U-shaped sleeve, two linkage arms are squeezed closer together. At this time, two arc-shaped clamps hold the endoscope tube on both sides. During insertion, the clamping and fixing prevents the arms from being held up for a long time, facilitating subsequent stable operation by medical personnel and improving practicality.

An airway device includes an outertube and a scope channel partially enclosed by the outertube. An intraluminal space in the outertube, not occupied by the scope channel, provides a passageway for air flow to the patient. An esophageal cuff is positioned distally on the scope channel. When inflated, the esophageal cuff secures the airway device in the proximal esophagus of the patient and helps to prevent gastric reflux by mechanically blocking gastric content from entering into the larynx. An inflatable bladder is attached to an anterior surface of the scope channel between the esophageal cuff and a distal opening of the outertube. When inflated, the bladder forms a tubular ring that pushes against the epiglottis and / or other soft tissue towards a wall of the hypopharynx to produce an unhindered air passage into the patient's trachea.

The invention relates to the technical field of medical instruments, in particular to an external compression device for preventing esophageal regurgitation, which comprises a belt ring, a groove is formed in the outer side of one end of the belt ring, a plurality of adjusting teeth are fixedly mounted in the groove at equal intervals, and the other end of the belt ring is fixedly sleeved with a limiting seat. A sponge lining, a pressure air bag and a plurality of air pillows are fixedly installed on the inner side of the belt ring, a detection hose is fixedly inserted into the side face of the pressure air bag, and a pressure gauge is fixedly installed at the end, away from the pressure air bag, of the detection hose; the device has the advantages that the belt ring is wound around the neck of a patient, the belt ring is driven to be slowly tightened through the adjusting mechanism, the tightness of the belt ring can be accurately adjusted through the arranged adjusting mechanism, the belt ring can adapt to different patients, and the comfort level of the patients is improved; and through the arranged one-way locking mechanism, the belt ring is prevented from being automatically loosened, and the pressure air bag can stably and continuously press the annular cartilage of the patient.