59 results about "Gastric Content" patented technology

The invention relates to the field of marine organism ingestion, in particular to a multi-dimensional analysis and evaluation method for molecular feeding habits of coral reef phytophagous fishes, which comprises the following steps of: determining a specific primer aiming at complex characteristics of mixed food residues in a gastric substance sample, and performing multiple PCR (Polymerase Chain Reaction) amplification on a target gene to obtain DNA (Deoxyribose Nucleic Acid) bar code sequence data of a target fish food source; performing multi-stage comparative analysis on the DNA bar code sequence data and sequence data in a DNA reference database; constructing a molecular characteristic sequence map of different species in the gastric contents according to an analysis result; and according to the molecular characteristic sequence map, determining a feeding preference index of the target fish so as to evaluate the regulation and control capability of the population structure of the target fish on the growth of the macroalgae in the coral reef ecosystem. According to the method, the feeding habit composition of the coral reef phytophagous fishes can be comprehensively analyzed, a scientific basis is provided for protection and management of a coral reef ecological system, and the efficiency of feeding habit analysis and the accuracy of ecological evaluation are effectively improved.

The invention provides a transgastric laparoscopic surgery puncture outfit with anti-slip and fixing functions, which overcomes the surgery difficulties that a traditional puncture outfit cannot puncture into a gastral cavity, the gastral cavity cannot be tightly attached to an abdominal wall after puncture, and contents in the stomach easily flow back into an abdominal cavity through the puncture outfit to cause pollution and the like, and the puncture outfit enables the new technical surgery process to be more simplified, safer and more effective. Comprising a cannula assembly and a puncture assembly, the cannula assembly comprises a cannula seat and a cannula arranged at one end of the cannula seat, the puncture assembly comprises a puncture handle and a puncture needle arranged at one end of the puncture handle, and the puncture needle penetrates through the cannula in a sliding mode. The phenomenon that the cannula slides out of the gastral cavity, and the stomach and other visceral organs and blood vessels of a patient are injured due to repeated puncture can be effectively avoided, the situation that the whole puncture outfit is taken out when the instrument is pulled outwards is avoided, it is guaranteed that the percutaneous laparoscopic surgery is conducted smoothly, and the pain of the patient is relieved; the structure is simple, operation is convenient, time and labor are saved, and the protective fixing effect and the operation efficiency of the cannula are improved; the skin incision can be pulled, and the fixing effect is improved.

The invention discloses a stomach content amount estimation method based on intelligent image recognition, and belongs to the technical field of stomach content amount estimation, and the method comprises the following steps: S1, collecting and processing a stomach content perception image of a patient, and determining a stomach content feature image of the patient; s2, determining an optimal stomach content amount estimation model according to the stomach content amount estimation demand; s3, predicting and analyzing the real-time image of the stomach content of the patient, estimating the stomach content amount of the patient, and determining an estimated value of the stomach content amount of the patient; and S4, carrying out intelligent management and control on the estimation of the content amount of the stomach of the patient. According to the method, the problems that the stomach content amount cannot be effectively estimated based on intelligent image recognition and timely management and control treatment cannot be provided for the patient in the prior art, so that the diagnosis and treatment effects of the patient are poor are solved. According to the method, the content of the stomach can be effectively estimated based on intelligent image recognition, timely management and control treatment can be provided for a patient, and the diagnosis and treatment effects of the patient can be improved.

The gastroenterology department nursing gastrointestinal decompression device comprises a gastrointestinal decompression device body and a stomach tube, a drainage tube is connected to the top end of the gastrointestinal decompression device body in an inserted mode, and three stomach content transfer modules distributed in an annular mode are arranged between the output end of the stomach tube and the input end of the drainage tube; a combined restraining module used for being connected with the gastric content transfer module is arranged above the gastrointestinal decompression device body, the transfer tubes are connected into the combined restraining module through the threaded connectors at the output end and the input end, and the three transfer tubes can be matched with a stomach tube to conduct drainage work on gastric contents of a patient. The transfer tube is independently taken down to be cleaned, the stomach tube is connected with another transfer tube to continue gastrointestinal decompression nursing, and the three stomach content transfer modules are matched to allow a gastroenterology patient to perform a round of gastrointestinal decompression nursing operation. In the daily timed gastrointestinal decompression operation process, medical staff do not need to take the stomach tube for many times and insert the stomach tube again.

The invention discloses an adjustable stomach capsule treatment effect and body fat rate BMI intelligent management evaluation method, and relates to the technical field of stomach capsule treatment management, and the method comprises the following steps: setting an initial capacity adjustment amplitude and an initial capacity adjustment frequency of an adjustable stomach capsule according to basic health data of a patient; dynamic changes of gastric contents are monitored in real time through a built-in sensor of the gastric capsule, and monitoring data are sent to external equipment based on a wireless transmission technology. Through real-time data acquisition, feature quantitative analysis and intelligent prediction of a machine learning model, a sharp increment stage and a smooth increment stage can be distinguished in time, capacity adjustment amplitude and frequency are adaptively optimized through a fuzzy reasoning algorithm, a strategy of small-amplitude and high-frequency adjustment is adopted, and the capacity adjustment efficiency is improved. Not only is the discomfort of a patient possibly caused by sharp increase of stomach contents effectively relieved, but also the stability and individuation of the treatment process are ensured, and the safety, comfort and effect of treatment are improved.

The utility model provides a stomach tube with a mistaken inhalation prevention structure, which comprises a mask and a stomach tube component, an oxygen port is arranged on the surface of the mask, the stomach tube component is mounted on the surface of the mask, and the stomach tube component comprises a stomach tube body, a first air tube, a second air tube, a first air bag, a second air bag, a partition plate, a silica gel valve and a pressure sensor. Compared with the prior art, the stomach tube assembly has the advantages that when the stomach tube assembly is used, a gap between an esophagus and a stomach tube can be effectively blocked through the arrangement of the first air bag and the second air bag, and therefore the stomach tube assembly is convenient to use. The risk that gastric contents flow back into the esophagus and the respiratory tract is greatly reduced, the partition plate is arranged and divides the gastric tube body into the main cavity and the auxiliary cavity in the using process, an infusion channel and a pressure monitoring channel of nutrient solutions or medicine are independent of each other and do not interfere with each other, and therefore the stability of the infusion process and the accuracy of pressure monitoring can be guaranteed.

The application relates to the field of medical masks, in particular to a mask with a gastrointestinal mirror channel, which comprises a mask main body, an oxygen supply assembly, a gastrointestinal mirror channel assembly, an anti-aspiration assembly and a sealing adjustment assembly. The oxygen supply assembly provides clean and controllable breathing support through a multi-layer filter membrane and a flow adjustment function; the gastrointestinal mirror channel assembly is designed with a flexible sealing sleeve and an elastic support strip, thereby ensuring air tightness and adaptability during gastrointestinal mirror operation; the anti-aspiration assembly effectively deals with vomiting reflex or gastric content reflux through an arc-shaped baffle and a drainage groove; and the sealing adjustment assembly improves the adhesion and stability of the mask by using an air bag. The application can simultaneously realize breathing support and gastrointestinal mirror operation, and takes into account the safety and comfort of patients, thereby providing a perfect solution for digestive endoscopy.

Esophageal intubation assemblies, esophageal cardiac stimulation and gastric decompression assemblies, and methods for using and making the same are provided.

The invention discloses a newborn nasal feeding fixing frame, and relates to the technical field of medical instruments. The stomach tube fixing device comprises a box body, a connecting tube, limiting mechanisms and a stomach tube fixing mechanism, the limiting mechanisms are fixed to the front side and the rear side of the outer side wall of one side of the box body, the connecting tube is inserted into the other side wall of the box body, the stomach tube fixing mechanism is arranged at the outer end of the connecting tube in a sleeving mode, and a flow control valve is arranged on the connecting tube and arranged in the box body. A pumping pump is fixed to the inner side wall of one side of the box body, a water outlet of the pumping pump is connected with the connecting pipe, and a liquid inlet pipe is connected to a water inlet of the pumping pump. When the stomach tube is conveniently fixed, the injection speed is controlled, sudden increase of contents in the stomach of a child patient cannot be caused, gastrointestinal dysfunction cannot be caused, abdominal distension, vomiting and other complications are reduced, and the stomach tube has the advantages of being reasonable in arrangement, low in manufacturing cost and the like.

A system for a bypass-like, transduodenal passage of stomach contents, comprising: a transduodenal bypass unit (BE), itself comprising a transduodenal assembly (TDG) having a tubular film (7) for the passage of stomach contents into the jejunum, and also comprising a transpyloric assembly (TPG) having a hose-like or tubular shaft component (2); a transesophageal positioning unit (PE) having a tubular shaft component (9), the outer diameter of said shaft component being smaller, at least in a distal region, than the inner diameter of the shaft component (2); and an extracorporeally controllable coupling device (KE) which selectively fixates the shaft component (2) to the shaft component (9) for coupling purposes or releases the same for decoupling purposes.

The invention relates to the technical field of medical instruments, in particular to a gastrointestinal decompression device which comprises a suction tube, a center shaft extending in the vertical direction is arranged in the suction tube, a rotating frame is rotatably arranged on the center shaft, a plurality of diaphragms are arranged on the rotating frame and divide the suction tube into a plurality of storage cavities, and the storage cavities are communicated with the suction tube. The storage cavity is used for storing gastric contents, the diaphragm can contract in the vertical direction, a sliding plate is arranged at the bottom of the suction barrel, a tension spring is connected between the sliding plate and the bottom of the suction barrel, the sliding plate can slide up and down along the rotating frame, the lower end of the diaphragm is connected to the sliding plate, and the diaphragm is arranged in the storage cavity. The sliding plate can rotate along the center shaft so as to drive the rotating frame to rotate, meanwhile, the sliding plate can move up and down relative to the rotating frame, negative pressure is formed in the multiple storage cavities, the gastric contents are sequentially sucked, the gastric contents sucked in different time periods are separated into the respective storage cavities, and mixing is avoided.

The utility model discloses a manual gastric lavage device which comprises a water inlet, a hard tube, a first hose, an extrusion air bag, a second hose, a Y-shaped tube and a first adjusting valve. The water inlet, the hard tube, the first hose, the extrusion air bag and the second hose are sequentially communicated and connected; the Y-shaped tube is provided with a connector, a negative pressure connector and a stomach tube connector; the first adjusting valve is mounted at the connecting port; and the second hose is mounted on the first adjusting valve. According to the application of the manual gastric lavage device, the principles of atmospheric pressure and siphonage are utilized, contents in the stomach are flushed continuously after simple operation, toxins can be effectively removed, and patients suffering from food poisoning are rescued to the maximum extent.

The invention discloses a composite solution for treating reflux esophagitis and a preparation method and application thereof, and relates to the technical field of pharmaceutical preparations, the composite solution is formed by physically mixing drug-loaded microspheres and a gastric buoyant raft matrix solution; wherein the drug-loaded microspheres are solid particles which take thiolated pectin as a carrier, are crosslinked and cured through divalent metal ions and are coated with a periplaneta americana extract; the gastric buoyant raft matrix solution comprises a hydrophilic colloid, a component capable of generating gas when encountering acid and a stabilizer. The magnesium mercapto pectin microspheres provide excellent mucous membrane adhesion, and the acting time of the medicine on the esophageal focus is prolonged; the gastric buoyant raft substrate forms a physical barrier in a gastric acid environment to inhibit regurgitation of gastric contents. Through cooperation of the two, a dual treatment mechanism of local repair and source control is realized. The preparation can remarkably prolong the in-vivo residence time and effectively promote esophageal mucosa healing, and the curative effect is better than that of a pure periplaneta americana extract preparation.

To provide a gastrostomy catheter capable of more surely regulating the backflow of a nutrient or gastric contents from the inside of the stomach to the outside of the body.SOLUTION: The gastrostomy catheter 100 comprises a shaft 10 having a lumen 11, and a check-valve 40, wherein the check-valve 40 has a base part 41, a downward projecting part 51, and an annular 51a part 43, the shaft 10 has a body surface contact part 20 and an annular rib 23, the gap between the annular wall part 43 and the downward projecting part 51 constitutes an annular groove 44 into which the annular rib 23 fits, and a valve opening 45 is formed in the side wall of the lower end of the downward projecting part 51. A lower portion of the downward projecting portion 51 serves as a press-fitting portion 53, the press-fitting portion 53 has a large-diameter portion 54 whose size in the first direction is larger than the inside diameter of the lumen 11, and the size of the downward projecting portion 51 in the first direction gradually increases downward at a boundary portion 54a between the upper portion 52 of the downward projecting portion 51 and the large-diameter portion 54.SELECTED DRAWING: Figure 2

The present disclosure relates to treatment of reflux disease of a human patient. More particularly, a device is disclosed, which is configured to be implanted in the body of the human to restrict movement of the cardia of the patient's stomach towards the diaphragm opening into the patient's thorax, and / or to prevent stomach contents from passing from the stomach into the esophagus.

The invention provides a traditional Chinese medicine composition for tonifying spleen and promoting appetite for children as well as a preparation method and application thereof, and belongs to the field of traditional Chinese medicine compositions. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 10 to 30 parts of fructus crataegi, 10 to 30 parts of light wheat, 5 to 15 parts of malt, 5 to 15 parts of medicated leaven, 3 to 9 parts of endothelium corneum gigeriae galli, 5 to 15 parts of semen raphani, 5 to 15 parts of rhizoma atractylodis macrocephalae and 3 to 9 parts of pericarpium citri reticulatae. The traditional Chinese medicine composition provided by the invention transports without hurting body resistance, tonifies without greasy stagnation, has mild drug properties, does not have drastic and strong substances, has homology of medicine and food, and can benefit and nourish qi of internal organs of children while promoting, eliminating and transporting. Animal experiments show that the traditional Chinese medicine composition provided by the invention can effectively relieve the symptoms of spleen deficiency and dyspepsia of rats, improve the concentration of gastrin, motilin and serum P substances in rat blood and reduce the residual rate of gastric contents. Clinical experiments show that the traditional Chinese medicine composition preparation provided by the invention can be used for effectively treating infantile food retention caused by spleen deficiency and dyspepsia.

The invention relates to the technical field of feeds, in particular to a dietary dog food for recuperating gastrointestinal tracts of dogs and a preparation method thereof, and the dietary dog food comprises a basic nutritional agent, a gastric regurgitation preventing agent, a magnesium-zinc absorption promoting agent and a preservative. The modified sodium alginate forms gel in the stomach of the dog, sodium bicarbonate is decomposed to generate carbon dioxide gas to push the gel to float upwards to the cardia to form a shielding layer, and the modified cellulose releases calcium ions to promote crosslinking of the modified sodium alginate to form a more compact shielding layer so as to prevent backflow of contents in the stomach of the short-nose dog after the short-nose dog eats. The active form of vitamin D3 is combined with a vitamin D receptor in intestinal epithelial cells, gene expression of channels and ion transporters is up-regulated, and the absorption effect of dogs on magnesium and zinc in a high-calcium environment is promoted. The fructo-oligosaccharide enhances the signal transduction efficiency of the vitamin D3 by up-regulating the expression level of a vitamin D receptor, and further enhances the promotion effect of the vitamin D3 on magnesium and zinc absorption.

The utility model belongs to the technical field of medical instruments, and particularly relates to a guide wire assembly which comprises a guide wire fixing seat, and a liquid channel is formed in the middle of the guide wire fixing seat. A pressing block and a plurality of supporting columns which are matched with each other are arranged in the liquid channel; the supporting column is arranged on the inner wall of the liquid channel; the pressing block is arranged on the supporting column; and the guide wire is arranged in the pressing block. The liquid channel is formed in the guide wire fixing seat, and the guide wire is limited in the liquid channel through mutual matching of the supporting column and the pressing block; therefore, the work of confirming whether the nasogastric tube is successfully inserted into the stomach or not and the operations of sucking gastric juice and gastric contents and inflating can be completed under the condition that the guide wire is not detached; the potential safety hazard caused by the fact that the guide wire is fed after being detached is avoided, and meanwhile the efficiency of medical workers is improved.

The utility model discloses an auxiliary treatment mattress for reflux esophagitis, and relates to the technical field of medical auxiliary instruments. The auxiliary treatment mattress for reflux esophagitis comprises a mattress body and an air pump, a self-adaptive bending groove is formed in the outer wall of the bottom of the mattress body, a protection pad is arranged on the upper portion of the mattress body, an angle adjusting air bag is arranged at the bottom of the mattress body, a connecting belt is fixedly connected to the outer wall of the angle adjusting air bag, and the connecting belt is fixedly connected to the outer wall of the angle adjusting air bag. The connecting belt is arranged on the outer side of the angle adjusting air bag in a surrounding mode, a first hidden buckle is fixedly connected to the inner side of the connecting belt, a second hidden buckle is fixedly connected to the outer wall of the mattress, and the first hidden buckle and the second hidden buckle are connected in a clamped mode. The angle adjusting air bag is inflated through the air pump, so that the mattress forms an inclined plane, the chest and the back of a patient are raised, the probability that gastric contents flow back to the esophagus is reduced through gravity, the sleep position suggestion of the reflux esophagitis patient is met, symptoms caused by gastric acid reflux at night of the patient can be effectively relieved, and the treatment effect is improved.

This invention discloses an auxiliary medication feeding device for intensive care, relating to the field of medical device technology. It includes a transfer assembly with an input interface and an input cavity communicating with the input interface; a tubing assembly comprising a coaxially sleeved and relatively slidable outer tube and inner tube; and an expansion assembly located in the middle section of the outer tube, including a limiting membrane and an expansion flap, the limiting membrane and expansion flap being inclined in opposite directions and both pointing towards the cardia. The transfer assembly of this auxiliary medication feeding device for intensive care incorporates a slidable piston and an elastic element, forming a mechanical pressure feedback valve that effectively prevents reflux and patient discomfort caused by sudden pressure increases. Furthermore, the expansion flap design allows it to closely conform to the cardia area, forming a physical sealing barrier. This effectively blocks the reflux of gastric contents, significantly reducing the risk of aspiration pneumonia.

The premature infant prone position fixing pillow comprises a bearing plate, a fence, a headrest, a leg support and two fixing pieces, the bearing plate is used for bearing the body of a premature infant, the fence is arranged on the edge of the upper surface of the bearing plate and extends in the axial direction of the bearing plate, an opening is formed in the front end of the fence, and the headrest is arranged in the opening. The headrest is arranged at the front end of the bearing plate, the height of the headrest can be adjusted, the leg support is arranged on the upper surface of the bearing plate, the upper surface of the leg support is in an arc shape and used for supporting the legs of a premature infant, the two fixing pieces are arranged on the left side and the right side of the fence respectively, and one ends of the fixing pieces can be mutually connected above the bearing plate. The utility model discloses simple structure can make premature infant's position comfortable during hearing examination, noninvasive respiratory support and other care, reduce stomach content regurgitation or apnea, also avoid mouth and nose shielding, promote development.

The invention relates to the field of medical treatment, and particularly discloses a stomach content model training method, a medium, a device and application thereof. The invention aims to solve the problem of inaccurate prediction of an existing stomach content model, and particularly provides a stomach content model with higher accuracy, a training method thereof, a medium, a device and application thereof.

The invention relates to the technical field of valves, in particular to a gastroesophageal valve and a treatment device.The gastroesophageal valve comprises a valve membrane body, an extension edge and a presser foot edge, and the extension edge is a shape memory reset piece; the valve membrane body which is restored to a normal structure is used for preventing backflow of gastric contents, the presser foot edge is sewn to the esophagus or cardia, the valve membrane body can turn over towards the stomach body along with pushing of food chyme in the digestive tract, the valve membrane body can be bent and deformed when the space of the gastroesophagus is reduced, the shape is reset when the space of the gastroesophagus is restored, and therefore the gastroesophagus can be recovered. Therefore, the oesophagus and the fundus of stomach do not need to be folded, only the valve for shielding regurgitation of the contents in the stomach is added, the normal physiological anatomical structure of the oesophagus and the fundus of stomach is almost unchanged, the valve is simply sutured by the flexible medical suture line, the injury range is small, and the injury amplitude is small. The device is simple in structure, low in manufacturing cost, easy to install, few in operation steps, free of ultrasonic guidance, hard anastomat and hard fasteners, and convenient to disassemble and replace.

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.

The present application belongs to the field of food technology, and relates to a satiety composition for obesity intervention and application thereof. The satiety composition provided by the present application is composed of erythritol, alginate, pectin and resistant dextrin. The satiety composition provided by the present application can quickly absorb water in the stomach to form a gel, increase the volume and elasticity of the stomach contents, prolong the flow time of nutrients, and achieve a satiety feeling of more than 3 hours. The satiety composition slowly dissolves in the small intestine in the intestinal tract to form macromolecular polysaccharides and dietary fibers, and promote intestinal peristalsis. The satiety composition can be dissolved in water, and can be used to make different dosage forms or foods, and has a wide range of applications.

A gastroscope anti-reflux device comprises a gastroscope outer sleeve and a cardia air bag assembly, and an inner ring groove and an outer ring groove are formed in the gastroscope outer sleeve; the cardia air bag assembly comprises an inner clamping ring air bag, an outer clamping ring air bag and a cardia ring air bag, the inner clamping ring air bag and the outer clamping ring air bag are fixedly installed in the inner ring groove and the outer ring groove, an inner clamping ring groove and the outer clamping ring groove in the cardia ring air bag are bonded to the inner clamping ring air bag and the outer clamping ring air bag respectively, and an inflation tube is arranged in the tube wall of the gastroscope outer sleeve. The inflation tube is communicated with the inner and outer snap ring air bags, the inner and outer snap ring air bags are respectively communicated with the cardia ring air bag, and a one-way valve is arranged in the cardia ring air bag; the cardia ring air bag has the beneficial effects that the cardia ring air bag can prevent regurgitation of gastric contents; meanwhile, the front end of the gastroscope outer sleeve is completely wrapped by the cardia ring air bag and cannot be stained with any gastric contents, and when the gastroscope outer sleeve is pulled out, the situation that the gastric contents are taken out is avoided, and the situation that the gastric contents enter the trachea by mistake is avoided.

According to the valve and the valve fixing device, the esophagus and the fundus of stomach do not need to be folded, only one auxiliary valve for shielding regurgitation of contents in the stomach is added, the normal physiological anatomical structure of the esophagus and the fundus of stomach does not change, the fixation is realized by simply suturing soft medical sutures, and the problem of regurgitation of food is solved; an operation performed through the device and the valve has a small tissue damage range and small damage amplitude, and in addition, the device and the valve are simple in structure, low in manufacturing cost, easy to install and few in operation steps; in the operation process, ultrasonic guidance is not needed, a hard anastomat is not needed, and detachment or / and replacement of valve separation are / is facilitated in the future.

The invention discloses an esophagus plugging type stomach tube structure with a function of preventing regurgitation and aspiration, which comprises a stomach tube body capable of preventing regurgitation and aspiration, wherein the stomach tube body is inserted into the stomach of a patient through a nostril and an esophagus when a medical worker performs related operation on the patient and can prevent regurgitation and aspiration of stomach contents; the front end of the stomach tube body is arranged in the stomach of a patient, and the tail end of the stomach tube body is arranged on the outer side of the nose of the patient. The stomach tube fixing structure can effectively fix the tail end of the stomach tube body to the upper lip of a patient, and the stomach tube fixing structure is arranged at the upper lip of the patient. According to the stomach tube capable of preventing regurgitation and aspiration, regurgitation and aspiration can be prevented through the stomach tube body capable of preventing regurgitation and aspiration, the tail end of the stomach tube body capable of preventing regurgitation and aspiration can be effectively fixed to the upper lip of a patient through the stomach tube fixing structure, and the stomach tube is not prone to falling off from the nose of the patient; meanwhile, allergy and infection of the skin of the patient can be effectively avoided, and great comfort is brought to the patient.

The utility model relates to the technical field of medical instruments, and provides a negative pressure drainage device which is mainly used for drainage of stomach contents and comprises a container body, a reset spring and a drain valve, the container body is provided with an exhaust port and a drainage tube, and the container body collects liquid discharged from a drainage part from the drainage tube through negative pressure; the reset spring is arranged in the container body, one end of the reset spring is connected with the top of the container body, the other end of the reset spring is connected with the bottom of the container body, and the reset spring drives the container body to reset after the container body is compressed; the drain valve is arranged at the bottom of the container body and used for draining liquid in the container body. Liquid in the container main body can be quickly emptied through the drain valve, so that inconvenience caused by frequent replacement of the drainage container is greatly reduced, the medical cost is reduced, the economic burden of a patient is relieved, meanwhile, the workload of medical staff is also remarkably reduced, and the working efficiency is improved. In addition, the drainage device can accurately meter the drained liquid.

The invention provides a dynamic closed-loop control method of a nasal feeding pump and an intelligent nasal feeding system, and is applied to the technical field of medical instruments and control. The method comprises the following steps: acquiring a nasal feeding tube end pH value, complex impedance and ultrasonic data, comparing the pH value data with a gastric acid pH threshold interval and comparing a complex impedance data modulus value characteristic with a biological tissue impedance interval, generating a position signal, calculating a liquid level height based on the ultrasonic data, mapping the liquid level height into a gastric retention amount estimation value, and calculating a gastric retention amount estimation value. Generating an infusion pump motor driving control instruction according to the gastric retention and the position signal; according to the scheme, the position of the pipeline and the residual quantity of gastric contents can be monitored in real time, infusion is dynamically adjusted accordingly, and the risk of aspiration by mistake is reduced.