2183results about "Feeding-tubes" patented technology

The invention relates to the technical field of medical equipment, and discloses a nutrient canal anti-blocking control system based on pipeline resistance monitoring, and the system comprises a data collection module which collects the real-time pressure difference, flow and fluid temperature in a pipeline; the data processing module is used for calculating a real-time resistance value in the pipeline; the resistance prediction module is used for establishing a resistance model based on the historical resistance value and the real-time resistance value and predicting the trend of the resistance value; the water injection control module generates an adjusting instruction for dynamically adjusting the water injection flow; the water injection execution module injects water into the pipeline according to the adjusting instruction of the water injection control module to prevent the pipeline from being blocked; and the feedback module adjusts water injection parameters of the water injection control module. A resistance model is established through the data acquisition module and the data processing module, the resistance trend is predicted, a water injection anti-blocking strategy is automatically generated, and accurate monitoring, intelligent prediction and efficient anti-blocking are achieved. And human intervention is not needed, the problems of slow blocking response and high maintenance cost are solved, manpower is greatly saved, and the anti-blocking efficiency is improved.

The present invention falls within the technical field of Food Packaging and was developed specifically to meet the needs of the Enteral Nutrition market. This innovation proposes a unique packaging solution, compatible with both Closed Enteral Systems and Open Enteral Systems. It is defined as an integrated opening device in the aseptic carton packaging, which allows direct connection to the enteral feeding set without the need for external devices (such as adapters and connectors). Thus, the invention transforms the conventional use of aseptic carton packaging—previously limited to open enteral systems—into a versatile, multi-use solution. Featuring characteristics equivalent to those of specialized packages for closed systems available in the market, this device, when incorporated into aseptic carton packaging, enables the contained product to be administered in both closed and open enteral systems. This is made possible by its features that allow direct connection to the enteral feeding set while provide the essential functionalities of traditional aseptic carton packaging, such as the rupture of the internal protective seal, which occurs when unscrewing the cap.

The present invention pertains to the field of medical devices and introduces an enteral tube system designed for efficient and continuous delivery of fluids into a patient's gastrointestinal tract. The system integrates a one-way air valve along the tubular body, allowing ambient air to equalize negative pressure within the tube. This innovative feature enables the plunger of a syringe connected to the syringe port to be removed and the syringe refilled without disconnecting it, ensuring uninterrupted operation. The system also includes an enteral connector with user-controlled fluid flow pathways, enhancing versatility and precision during fluid administration. By addressing challenges such as negative pressure buildup and simplifying the refilling process, the invention reduces handling complexity and improves overall efficiency. The system is suitable for administering enteral fluids, medications, or diagnostic agents in healthcare settings, offering significant advantages over traditional enteral feeding systems.

A system and method are provided to detect the operational state of a medical device, which includes a controller, a drive member, and a drive control member, where the controller is configured to control the drive control member to drive the drive member to operate. The method includes: acquiring an operating state parameter of the drive member, and determining the state information of the medical device according to the operating state parameter of the drive member and a predetermined judgment rule. Therefore, the state information of the medical device can be determined, and state monitoring of the medical device is realized, thereby ensuring the reliability of the medical devices.

The invention discloses an integrated front-end driving, active steering and visual digestive tract catheterization system, which belongs to the field of medical apparatus and instruments, and comprises a guide arm comprising a pull wire and an elastic arm, the guide arm is provided with a first end and a second end deviating from each other, and one end of the pull wire is fixedly connected to the first end; the lens is arranged at the first end; the driving part comprises a first annular balloon, a second annular balloon and a cylindrical balloon, and the first annular balloon and the second annular balloon are fixedly connected to the two sides of the cylindrical balloon in the axial direction respectively; when the annular balloon is full, the outer wall expands in the radial direction; when the cylindrical balloon is full, the outer wall extends in the axial direction; the fixing sleeve comprises a flexible sleeve and a connecting base which are fixedly connected, the connecting base is connected with the second end of the guide arm and the first annular balloon, and the end, deviating from the connecting base, of the flexible sleeve penetrates through the driving part and extends in the direction deviating from the guide arm. Through the arrangement, the front end of the nasointestinal tube can be guided and driven at the epiglottis of the nasal cavity and the upper and lower digestive tracts.

A dispensing device for dispensing a beneficial agent configured to transition between an inactive state and an active state. The dispensing device can include a body, a pressure chamber, a primary container, and / or a diaphragm. The pressure chamber and diaphragm may both be disposed within the body, and the primary container may be disposed within the pressure chamber and engaged with the diaphragm. The primary container may include a distal end with a septum or pierceable fitment disposed on a distal side of the diaphragm. The dispensing device may be configured to transition between an inactive state and an active state when a pressurized fluid is provided to the pressure chamber by moving the primary container distally against the diaphragm to cause the diaphragm to deform, including stretching a section of the diaphragm in a distal direction.

A liquid removal device is for removing a liquid from a surface. The liquid removal device includes a chassis comprising a handle and an absorber drum and an extractor drum both rotationally coupled with the chassis. The absorber drum includes a cylinder, where an absorbent layer is positioned on an outer drum surface of the absorber drum. The extractor drum includes a reservoir configured to retain the liquid absorbed from the surface, an outer extractor surface, and a plurality of apertures defined by the outer extractor surface in fluid communication with the reservoir. The extractor drum is movable between a first position and a second position. In the first position, at least a first portion of the plurality of apertures are in contact with the absorbent layer. In the second position, the first portion of the plurality of apertures are not in contact with the absorbent layer.

The invention provides a fluid conveying mechanism and a nutrition pump, the fluid conveying mechanism comprises a conveying assembly and a connecting seat, the conveying assembly comprises a flow passage and a valve mechanism arranged on the flow passage, and the conveying assembly is mounted on the connecting seat. The fluid conveying mechanism is reliable in connection, the risk that the fluid conveying mechanism falls off from the nutrition pump can be avoided, and the free flow phenomenon can be prevented.

The invention provides a handle assembly and a medical catheter system, and relates to the technical field of medical instruments. The handle assembly comprises a connecting module internally provided with a catheter channel. An opening is formed in at least one end of the catheter channel, a sealing part is arranged on at least part of the inner wall of the catheter channel, and the sealing part is used for being attached to and sealing an object extending into the catheter channel. According to the handle assembly, a medical catheter and other objects can be inserted into the handle assembly through the catheter channel and the opening of the connecting module, detachable connection between the handle assembly and the medical catheter is achieved, and the sealing performance of the connecting position of the medical catheter and other objects and the handle assembly can be guaranteed through the sealing part; therefore, after the operation, the medical catheter and the handle assembly are separated firstly, the guiding channel is directly withdrawn while the medical catheter is reserved, complex instrument exchange operation does not need to be executed, and the operation convenience, the operation safety and the operation efficiency are effectively improved.

The invention provides a stomach tube auxiliary system which comprises a pressure sensor, a detection indicating lamp and a detection processing module, the detection processing module is connected with the pressure sensor and the detection indicating lamp, and the pressure sensor is arranged at the end, entering the throat, of a stomach tube; the detection processing module determines whether the stomach tube enters the stomach or not according to the pressure value detected by the pressure sensor in the process that the stomach tube enters the first depth range in the throat, and if not, the detection indicating lamp is controlled to be turned on in a second color, whether the stomach tube enters the stomach or not is determined according to the pressure value detected by the pressure sensor in the process that the stomach tube enters the second depth range in the throat, if the stomach tube enters the stomach, the detection indicating lamp is controlled to be turned on in the first color, and if the stomach tube does not enter the stomach, the detection indicating lamp is controlled to be turned on in the third color; therefore, a medical worker can adjust the insertion direction of the stomach tube by checking the lighting color of the detection indicating lamp, and the safety of a patient is guaranteed.

The invention relates to the technical field of biomedical engineering, in particular to a nutrient solution infusion speed automatic control method for an enteral nutrition pump, which comprises the following steps: constructing an initial nutrient solution infusion speed model, and setting an initial speed and a final speed in the initial nutrient solution infusion speed model in combination with physiological information of a patient, acquiring an infusion coefficient in the initial nutrient solution infusion speed model; physiological characteristic parameters of the patient are calculated according to the change condition of the physiological data, in the infusion process of the enteral nutrition pump, infusion coefficients are adjusted in real time through the physiological characteristic parameters, and a current nutrient solution infusion speed model is obtained; and controlling the nutrient solution infusion speed of the enteral nutrition pump by using the current nutrient solution infusion model. According to the method, the individuation and optimization degree of treatment are improved, and the accuracy and controllability of the infusion speed are effectively improved.

The utility model provides a nasogastroscope-guided gastrointestinal catheterization system based on a guide wire. The nasogastroscope-guided gastrointestinal catheterization system comprises a nasogastroscope (1), an imbedding tube (2) and the guide wire (3), wherein the guide wire (3) is arranged in an instrument cavity of the nasogastroscope (1); the implantation tube (2) is arranged along the guide wire (3) to a target jejunum nutrition tube putting position; the diameter of the guide wire (3) is 0.4 mm to 1.8 mm; the length of the guide wire is 1-7 m, and the section, 2-8 cm long, of the front end of the guide wire (3) is a flexible section (3.9). The utility model has the advantages of simple structure, simplification of catheterization operation, reduction of the pain of a patient, reduction of medical risks, guarantee of the success rate of catheterization, and excellent technical effect; the method has huge economic value and social value.

The utility model discloses a self-feedback adjusting liquid food feeder which comprises a pipeline used for conveying liquid food to the oral cavity of a user, a feeding port is formed in one end of the pipeline, a peristaltic pump used for providing conveying power for the pipeline is arranged on the pipeline, a pressure sensor is arranged on one side of the feeding port, and a pressure sensor is arranged on the other side of the feeding port. The pressure sensor can sense and receive extrusion force generated when the tongue makes contact with the upper jaw when a user swallows, the pressure sensor is electrically connected with a controller, and the controller is electrically connected with the peristaltic pump. According to the utility model, the pressure sensor is arranged at the end part of the pipeline and is placed in the oral cavity of a user, and the pressure sensor is extruded by fully utilizing the extrusion force between the tongue and the upper jaw when the user swallows, so that the delivery of liquid food is correspondingly controlled, the self-feedback regulation is realized, and the self-feedback regulation can be better matched with the swallowing rhythm of the user.

The invention provides an intelligent stomach tube based on optical fiber sensing and image monitoring, and the stomach tube comprises a stomach tube body which is internally integrated with an optical fiber and a miniature camera assembly; at least three FBG (Fiber Bragg Grating) sensing nodes which are respectively positioned in the stomach, the esophagus and the throat section are inscribed on the optical fiber and are used for acquiring pressure and temperature signals; the miniature camera assembly is arranged on the inner wall of the throat section and used for collecting images. A demodulation-edge AI processing terminal is arranged outside the body, connected with the sensing nodes and the camera shooting assembly and used for demodulating signals and conducting multi-mode fusion analysis on the basis of pressure signals and image data, real-time judgment of the situation that the catheter enters the airway by mistake, intelligent evaluation of the risk of aspiration before catheter drawing and early warning output when the risk exceeds the standard are achieved. According to the invention, the FBG sensing node and the miniature camera shooting assembly are integrated in the stomach tube, and the in-vitro demodulation-edge AI processing terminal is combined, so that precise and automatic monitoring and early warning of the whole process from tube indwelling to tube drawing evaluation are realized, and the safety and the medical quality of a patient are fundamentally improved.

The invention provides an intelligent nursing system and method, and relates to the field of medical instruments, and the intelligent nursing system comprises a nursing device, a temperature adjusting device, a monitoring device and a control processing device. The feeding device comprises an injection pump, an injection tube, an infusion tube and a simulation nipple. The monitoring device comprises a flow velocity monitoring unit, a pressure monitoring unit and a temperature monitoring unit. The control processing device comprises a machine learning module and a flow velocity control module, the machine learning module predicts a sucking demand through a neural network based on the sucking pressure monitored by the pressure sensor and generates a flow velocity correction factor, and the flow velocity control module adjusts the flow velocity of the injection pump based on the correction factor. The system further comprises a feeding efficiency evaluation module, a waveform analysis module, a feeding scheme configuration module, a data synchronization module and an alarm linkage module, wherein the data synchronization module and the alarm linkage module are linked with a hospital information system. According to the invention, precise feeding management of premature infants and swallowing dysfunction children is realized, and the feeding safety, efficiency and individual suitability are improved.

The utility model relates to the technical field of nasogastric tubes, and provides a nasogastric tube with a wax oil lubricant, which comprises an outer packaging bag, and a nasogastric tube body and a lubricating device which are arranged in the outer packaging bag, the lubricating device comprises a sealed lubricant bag and a wax oil lubricant pre-filled in the lubricant bag; the lubricant bag is of a semicircular tubular bag structure with an opening in one side, and the lubricant bag is arranged on the outer wall of the nasogastric tube body in a sleeving mode; the arc-shaped inner end face of the lubricant bag makes contact with the outer wall of the nasogastric tube body, and the inner end face of the lubricant bag or the end face located at the opening is provided with a through hole and a sealing film for sealing the through hole. The nasogastric tube body is very simple and convenient to lubricate, and the semi-circular tubular lubricant bag has a large contact surface with the outer wall of the nasogastric tube body, so that the lubricating effect is good. And the lubricating operation efficiency is greatly improved.

The invention discloses a multifunctional intelligent stomach tube, and belongs to the field of medical instruments, the multifunctional intelligent stomach tube comprises an outer tube mechanism, the outer tube mechanism comprises a stomach tube body and a rubber head, one end of the inner wall of the stomach tube body is provided with a slidable medicine feeding mechanism, and one end of the inner wall of the stomach tube body is slidably connected with the outer wall of a movable cylinder; a vertically-through pipe connecting through hole is formed in one end of the top of the movable cylinder, a medicine storage cavity is formed in the outer wall of the movable cylinder, a bottom cover is installed under the movable cylinder, and an illuminating lamp is installed at one end of the bottom of the bottom cover; by arranging the pushing inner pipe, the medicine feeding mechanism can be pushed, by arranging the medicine storage cavity, medical staff can place medicine powder or unground medicine in the medicine storage cavity, then the medicine is conveyed into the human body at a time through pushing of a movable cylinder, and the bottom face of the inner wall of the medicine storage cavity is arranged to be an inclined face, so that quick release of the medicine is facilitated; not only is the accuracy of medicine feeding improved, but also the situation that the medicine outlet is blocked is avoided.

The utility model belongs to the technical field of medical instruments, and particularly relates to a liquid food feeding device for critical nursing, which comprises a feeding device body for liquid food feeding of critical patients, the feeding device body consists of a pushing seat and a food storage barrel, an operation panel and an anti-skid rubber mat are arranged on the pushing seat, and the food storage barrel is arranged on the pushing seat. A storage battery, a microprocessor, an electric heating element, a temperature sensor and an electric telescopic rod are arranged in the pushing seat, a mounting groove, a first notch and a second notch are formed in the pushing seat, the food storage cylinder is mounted in the mounting groove, a piston is movably arranged in the food storage cylinder and connected with one end of a push rod, and the other end of the push rod is connected with a motor. When in use, the nursing device is convenient to mount, demount and clean, and meanwhile, liquid food can be heated at constant temperature and automatically pushed, so that the workload of nursing personnel can be effectively reduced, and a critical patient can conveniently absorb nutrition.

The present application belongs to the technical field of medical care, and particularly relates to a nutrient solution delivery device for assisting in nursing of esophageal cancer patients, which comprises a mounting seat, the inside of the mounting seat is provided with a fixing part, the fixing part can extrude and fix the nutrient bag placed inside to avoid the nutrient bag from deviating during the operation of the equipment; the inside of the fixing part is provided with a driving part, the driving part moves back and forth inside the mounting seat, the driving part can extrude the nutrient solution inside the nutrient bag to flow during the back and forth movement; the inside of the driving part is further provided with a stirring part which rotates, the stirring part can rotate by using the power of the back and forth movement of the driving part, and the rotation of the stirring part further promotes the flow of the nutrient solution inside the nutrient bag; the inside of the mounting seat is provided with a delivery part. The present application uniformly heats the nutrient solution and delivers it into the gastrointestinal tract of the patient, the warm nutrient solution can promote blood circulation and increase the peristalsis of the intestinal tract, which is helpful to improve the digestion and absorption rate of the nutrient components.

The invention provides a visual stomach tube convenient for guide wire traction adjustment, which comprises a stomach catheter for feeding, a visual sleeve for visualization is sleeved at the bottom end of the stomach catheter, a traction wire connected with the visual sleeve is arranged in the stomach catheter in a penetrating manner, one side of the stomach catheter is connected with a shunt tube, the other end of the shunt tube is connected with a filter sleeve, and the filter sleeve is connected with a guide wire. A conductive wire is embedded in the stomach catheter, the traction wire is hollow, a wire set used for signal transmission and power supply is connected to the middle of the traction wire in a penetrating mode, and a filling cavity is formed in the bottom end of the stomach catheter. The stomach tube can be prevented from entering the trachea by mistake, meanwhile, after use is completed, gastric juice is extracted synchronously for inspection, operation steps are reduced, meanwhile, the visual sleeve and the guiding traction wire can be recycled, the overall use cost is reduced, and the burden of a patient is reduced.

The invention provides an intensive care nursing feeding device, and relates to the technical field of medical instruments, the intensive care nursing feeding device comprises a base, a lifting part movably arranged on the top of the base, a storage part arranged on the top of the base, and a flow control part arranged on one side of the lifting part and connected with the storage part; the lifting part is movably connected with the flow control part through an angle adjusting part, and a conveying pipeline used for conveying food is arranged on one side of the flow control part; the flow control part is used for accurately controlling the food flow; through the arrangement of the flow control component and the pressurizing component, the feeding speed and the food flow are accurately controlled, complications are reduced, and the comfort level of a patient is improved; through the arrangement of the lifting part, the angle adjusting part and the rotating table, a patient can be fed at any angle, the workload of nursing personnel can be relieved, and the nursing personnel can efficiently conduct feeding work.

The present invention discloses a nasogastric feeding device for nursing the digestive tract with anti-backflow, which relates to the field of nasogastric feeding technology, including a feeding device and a hose, wherein the feeding device includes a driving rod and a housing, the upper and lower ends of the housing are respectively provided with end caps and a sleeve, a pressing plate and a mesh plate are installed inside the housing, a cavity is formed between the end cap and the sleeve, a four-way pipe is installed on the end cap, an air pump and a control valve are installed inside the four-way pipe, the pressing plate and the mesh plate are provided with a driving rod, and the four ports of the four-way pipe are respectively connected to the external environment, the cavity, the air pump and the space inside the housing. The present invention performs air extraction before food processing to prevent the liquid food from carrying a large amount of air into the patient's stomach during the infusion period, thereby preventing the patient from experiencing bloating. At the same time, the hose is provided with an anti-backflow mechanism to prevent the phenomenon of gastric fluid backflow due to the patient's body posture.

The utility model relates to the technical field of medical equipment, in particular to a postoperative feeder which comprises a grip, a fixing ring is mounted at the top of the grip, an extraction structure is placed in the fixing ring, and a feeding structure is mounted on the outer surface of the extraction structure. Through a material injection structure, after being filled with liquid food, a containing tank is connected with a threaded pipe in a clamped mode, the containing tank is inverted to enable the threaded pipe to be aligned with a threaded groove pipe and rotate to be connected with the threaded groove pipe, when the threaded pipe is rotated into the threaded groove pipe, a first ejector rod abuts against a second ejector rod and extrudes a movable plug, and at the moment, two springs are compressed by pressure; the second ejector rod drives the movable plug to move upwards in the threaded pipe, so that the through hole is exposed in the capacity tank, the liquid food in the capacity tank can flow into the extraction barrel through the through hole, the food flowing amount stored by the device every time can be increased, and the purpose of large flow of the device is achieved.

The invention relates to the technical field of medical pipeline connecting structures, in particular to a connecting assembly of an abdominal wall nutrition tube and an enteral nutrition bag, which comprises a female joint, a male joint and a sealing assembly. A first connecting rod is arranged at the end of the female connector, a second connecting rod is arranged at the end of the male connector, and flow channel holes are formed in the first connecting rod and the second connecting rod and used for establishing a liquid channel during connection. And the female lantern ring and the male lantern ring are mutually sleeved and positioned through the sleeving surface, so that the stability and the sealing property of the joint are ensured. The sealing assembly comprises a sliding sleeve ring, a valve block, a reset ring and a reset spring, the valve block automatically seals a flow channel under the action of the reset spring when not connected, the valve block is pushed by the first connecting rod and the second connecting rod to return in the connecting process, and automatic connection and disconnection of liquid are achieved. Second sealing magnetic rings are arranged on the surfaces of the valve blocks. The structure is simple, and dirt hiding and containing gaps are reduced; the quick-connection self-sealing function is achieved, and operation is easy and convenient; the sealing reliability is enhanced through magnetic attraction positioning, and the safety and convenience of medical use are remarkably improved.

A delivery assembly for an ingestible device to deliver a fluid preparation into a GI lumen wall or surrounding tissue of a subject includes a housing, a piston, a needle, a conduit, and a valve member. The housing defines a piston chamber. The piston is movably disposed in the piston chamber. The needle is coupled to, or integrally formed with, the piston. The conduit is structured to direct the fluid preparation from a fluid source to the needle. The valve member has a first state and a second state. In the first state, the valve member substantially impedes a flow of the fluid preparation from the conduit to the needle. In the second state, the valve member is structured to allow the fluid preparation to flow through the conduit to the needle.

The invention relates to the technical field of guiding devices, in particular to a nasal jejunum nutrition tube imbedding guiding device which is used for guiding the process of imbedding a flexible nasal jejunum tube into a human body. The image acquisition device acquires a picture in the direction of the advancing direction of the insertion end of the nasal jejunum tube; the bag body is arranged in a manner of extending close to the insertion end of the nasal jejunum tube; during use, the bag body does not generate binding force on the nasal jejunum tube in a low-expansion state, the shape of the nasal jejunum tube is not limited by the bag body, when the bag body is in a high-expansion state, the bag body generates binding force on the nasal jejunum tube to enable the nasal jejunum tube to be bent, and the image acquisition device comprises a camera arranged in the insertion end of the nasal jejunum tube. The insertion end of the nasointestinal tube is provided with a closing part for preventing the camera from falling off, and the problem that the throat and the pylorus cannot pass through the nasointestinal tube quickly and smoothly in the existing nasointestinal tube indwelling process can be solved by improving the existing endoscope guiding technology.

The invention relates to the technical field of medical instruments, in particular to a nose wetting assembly and a nose mask provided with the nose wetting assembly.The nose wetting assembly comprises a fixing sleeve, a liquid absorption sponge is arranged at the end of the inner section of the fixing sleeve, a water bag is arranged on the outer section of the fixing sleeve and used for storing a wetting agent, and the liquid absorption sponge is arranged on the end of the inner section of the fixing sleeve. A liquid channel is further arranged on the portion, between the liquid absorption sponge and the water bag, of the fixing sleeve body. The water bag and the imbibition sponge are arranged on the two sides of the fixing sleeve respectively, in actual use, after the in-vivo section of the fixing sleeve is inserted into the nasal cavity of the human body, a wetting agent stored in the water bag can be continuously conveyed to the imbibition sponge through the flow guiding effect of the liquid channel, and therefore the wetting agent can be continuously wetted. In this way, the wetting agent absorbed in the liquid absorption sponge can be evaporated and released for a long time, the wettability of the nasal cavity of a nasal feeding tube patient is maintained, and compared with the mode that in the prior art, medical workers need to conduct nasal cavity wetting operation at intervals, the operation convenience is effectively improved, and the workload of the medical workers is relieved.

The invention provides a flushing control method and nutrition delivery equipment, and relates to the technical field of medical equipment. The flushing control method comprises the steps that the flowing condition of first fluid in a conveying pipe is obtained, according to the flowing condition of the first fluid and a preset flushing rule, it is determined that pipeline flushing is triggered, and a driving piece is controlled to convey flushing fluid to the conveying pipe. When the nutrient solution flows and is conveyed in the conveying pipe, the flowing condition of the fluid in the conveying pipe can be detected through the fluid detection piece of the nutrient conveying equipment, and specifically, whether the fluid in the conveying pipe is blocked or not can be detected. Preset flushing rules corresponding to various flowing conditions of fluid in the conveying pipe are stored in the controller, when the fluid in the conveying pipe is blocked, the controller can control the driving part to convey flushing liquid into the conveying pipe, the flushing liquid can flush the blocked part in the conveying pipe in the flowing process in the conveying pipe, and the flushing effect is improved. Therefore, the purpose of relieving blockage of the conveying pipe is achieved.

The use of a device to measure patient sensory response through the application of an incrementally increased electrical current to the oropharynx.

Disclosed in the present disclosure are a medical liquid infusion apparatus, and a liquid communication assembly and an elastic hose member used for same. The elastic hose member is a single member integrally shaped by means of an elastic material and comprises: a hose body; a joint ring and a holder portion, the holder portion radially extending outwards from the hose body to the joint ring, and the joint ring being in interference fit with the hose body; and a stop protrusion portion, defining a folding portion and an insertion portion. The ratio of the length of the folding portion to the length of the holder portion in the radial direction is between 2 and 5, such that when the insertion portion is completely inserted into the joint ring, the folding portion is folded to jam the liquid from flowing in the hose body, and when the hose body is subjected to an axial tension, as the holder portion is stretched, the folding portion is at least partially unfolded so as to allow the liquid to freely flow in the hose body. The present disclosure can reduce the risks of unexpected or undesirable liquid flow or liquid infusion in medical liquid infusion apparatuses or pipelines.