34 results about "Infusion drug" patented technology

The utility model discloses an infusion medicine empty sterilization tray box roll-out mechanism, which relates to the technical field of infusion medicine bottle loading and comprises a first lifting assembly arranged on one side of a sterilization vehicle track. The first transfer assembly is in sliding connection with the supporting frame; a first conveying device which is transversely arranged from one side of the first lifting assembly to the other side of the first lifting assembly is arranged on the upper surface of the first transferring assembly; the first lifting assembly is fixed to the first supporting frame and used for driving the first transferring assembly to slide in the height direction of the first supporting frame. And the taking-out assembly is arranged on the first transferring assembly, and the taking-out assembly can stretch out or retract towards one side of the first lifting assembly and transfer the sterilization tray box on the drawer type sterilization vehicle to the first conveying device. By adopting the scheme, the sterilization tray box can be automatically taken out from the drawer type sterilization vehicle, and the loading efficiency is improved.

The invention discloses an infusion cluster management system and method for real-time monitoring and AI early warning, and relates to the technical field of infusion cluster management. The method comprises the steps that correlation verification of patient information and medicine information is executed; if the correlation verification is passed, after the patient information and the infusion medicine information are read, the fusion sensor group is activated, and infusion medicine monitoring is executed; receiving the real-time monitoring data set, performing data time sequence change analysis on the real-time monitoring data set, establishing a first monitoring early warning, initializing an anomaly recognition network according to patient information and infusion medicine information, performing anomaly recognition on the real-time monitoring data set based on the anomaly recognition network, and establishing a second monitoring early warning; and the first monitoring early warning and the second monitoring early warning are pushed to a hospital information system and medical care mobile terminal equipment, and early warning is reported. The technical problems that in the prior art, monitoring is not accurate in the infusion process, and early warning response is delayed are solved, and the technical effect of improving safety, accuracy and timeliness of the infusion process is achieved.

The invention belongs to the technical field of biomedical engineering, and discloses a mobile infusion safety monitoring and remote early warning system and method based on edge computation.The mobile infusion safety monitoring and remote early warning system comprises a data stream monitoring unit, a data processing unit and a remote early warning unit, the data stream monitoring unit is used for collecting infusion dripping speed data of a patient in an ICU inpatient area and converting the infusion dripping speed data into dripping speed digital signals through an ADC module arranged in an infusion support edge node; distributing along the vertical direction of the infusion container, dynamically monitoring the residual liquid amount, and eliminating shaking interference in combination with a compensation algorithm to obtain the accurate residual liquid amount; the ICU central monitoring terminal is synchronously connected to obtain physical sign data of the patient; the edge intelligent analysis unit is used for predicting the infusion remaining time according to the accurate remaining liquid amount; acquiring infusion medicine types, and dynamically sequencing sickbed lists on a nurse bracelet interface in combination with infusion remaining time; starting a zero call mode for a common inpatient area, cancelling all local sound-light alarms, and only retaining vibration alarm information sent by a nurse bracelet; the infusion monitoring reliability is improved, and the burden of medical staff is reduced.

The invention discloses an infusion medicine category identification method, system and device and a storage medium, and the method comprises the steps: carrying out the frequency mixing of a millimeter wave transmission signal and a reflection signal, obtaining an intermediate frequency signal, determining a first data pair sequence through fast Fourier transform based on the intermediate frequency signal, and obtaining a first data pair sequence; performing abnormal data deletion on the first data pair sequences of all the windows through an Euclidean distance function, and inputting the second data pair sequences into the trained generator to obtain a first feature vector output by the trained generator; and inputting the first feature vector into a trained classifier to obtain a category identification result of the to-be-identified infusion medicine output by the trained classifier, thereby realizing lossless identification, and improving the efficiency and accuracy of infusion medicine category identification.

1. The name of the design product: electric power assisted multifunctional infusion support. 2. The use of the design product: the design product is used for hanging infusion drugs. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. The face that is not often used when the product is in use, omit design 1 top view, design 1 bottom view, design 2 top view, design 2 bottom view. 6. Design 1 is designated as the basic design.

The invention relates to the technical field of artificial intelligence, in particular to an AI-based medical robot fault detection method and platform and a storage medium, and the method comprises the steps: collecting infusion pipeline pressure, flow pulse data and motor operation data; performing feature extraction on the pressure of the infusion pipeline in the analysis period to construct a waveform anomaly index; constructing a pulse anomaly index based on the flow pulse data and the motor operation data, and constructing a motor deviation index based on the motor operation data; the waveform anomaly index, the pulse anomaly index and the motor deviation index are fused to calculate a comprehensive anomaly index, and a drug characteristic compensation coefficient is constructed according to the viscosity and density of the infusion drug to update the comprehensive anomaly index; and constructing a thermal risk coefficient based on the motor coil current and the motor shell temperature, and generating an early warning grade according to the comprehensive abnormal index and the thermal risk coefficient. The early failure detection efficiency of the intravenous infusion pump is improved.

The embodiment of the invention provides an infusion control method and system and a storage medium. The method comprises the steps that infusion liquid medicine information is obtained; real-time infusion information is obtained through the monitoring module; acquiring pathological information of the patient; determining a preset infusion speed of the patient according to the pathological information; determining the optimal infusion speed of the patient according to the preset infusion speed and the expected infusion speed; controlling an adjusting module to adjust a flow regulator of the infusion apparatus according to the real-time infusion speed information and the optimal infusion speed; under the condition that the bubble information represents that the first volume of the first bubble is greater than a second threshold value, bubble removal information is generated; under the condition that the blood backflow information represents that the blood flows back, a backflow reason is obtained, and backflow treatment is conducted according to the backflow reason. The infusion process of a patient can be monitored and processed in real time, and blood backflow and bubbles are prevented from affecting infusion of the patient.

The utility model discloses a nursing infusion structure which comprises a base, one side of the top of the base is fixedly connected with a fixed rod, the top of the fixed rod is fixedly connected with a fixed strip, the outer side of the fixed strip is slidably connected with a movable rod, the top of the movable rod is fixedly connected with a top plate, one side of the bottom of the top plate is fixedly connected with a hook, and the hook is fixedly connected with a hook. When the infusion support is used, the infusion structure is moved to a designated position, the placing frame is adjusted to a proper height according to the height and the state of an infusion person, persons with different heights can effectively and conveniently place infusion arms, and a second protection pad on the placing frame can effectively protect the placed arms. According to the infusion structure, the infusion structure is prevented from sliding and affecting infusion, meanwhile, the situation that the arm makes direct contact with the containing frame and makes the arm feel uncomfortable is effectively prevented, when infusion is conducted on a medicine bottle, the infusion medicine bottle is clamped through the clamping blocks, and the situation that the infusion structure shakes during moving and affecting infusion is prevented.

The invention discloses an automatic dispensing robot, including an operation room, in which a dispensing device is installed; a liquid medicine transfer mechanism, an infusion bottle mechanism and a cillin bottle mechanism are installed on an integral rotating plate; the infusion bottle mechanism includes a horizontally movable infusion bottle operating device and an extrusion device fixedly installed on the integral rotating plate, the infusion bottle is installed on the infusion bottle operating device and is located between the extrusion plates of the extrusion device; the cillin bottle mechanism includes a cillin bottle horizontal operating device, a movable cillin bottle vertical operating device is installed at the front end of the cillin bottle horizontal operating device, the cillin bottle is installed on the cillin bottle vertical operating device, and a movable vibration device for dissolving the powder inside the cillin bottle is provided at the bottom of the cillin bottle. The invention effectively reduces the labor intensity of nursing staff, reduces the pollution of the infusion drug by the outside world during the dispensing and dissolving process, further accelerates the dissolution of the powder inside the cillin bottle, and thus accelerates the efficiency of automatic dispensing.

The utility model relates to a disinfection device for an infusion liquid medicine filter. The disinfection machine comprises a disinfection machine body, supporting legs are fixedly connected to the bottom of the disinfection machine body; a sealing cover is rotationally connected to the interior of the disinfection machine body; the sealing cover is arranged at a position corresponding to the top of the disinfection machine body; a rotating shaft is rotationally connected to the interior of the disinfection machine body; a plurality of rotating frames are fixedly connected to the side wall of the rotating shaft; the rotating frames are regularly arranged on the side wall of the rotating shaft in a circumferential array mode. The infusion liquid medicine filter is placed in the placing box body and the placing box cover, and the rotating shaft drives the rotating frame to rotate, so that the structural design of the disinfectant and the infusion liquid medicine filter realizes the function of cleaning and disinfecting the infusion liquid medicine filter; the problem that after insoluble particles or pathogens such as bacteria and viruses enter the human body through venous fluid or intravenous injection, some acute reactions or potential risks are likely to happen to the human body is effectively solved.

The application discloses a drawer type automatic bottle loading equipment and method of a sterile tray box, relates to the technical field of infusion medicine bottle loading, and comprises an empty sterile tray box transfer-out mechanism, a sterile tray box reversing mechanism and a full sterile tray box transfer-in mechanism which are sequentially connected and arranged on one side of a sterilization trolley track. The empty sterile tray box transfer-out mechanism and the full sterile tray box transfer-in mechanism are respectively arranged at a discharging point and a feeding point which are distributed in front of and behind the sterilization trolley track. According to the scheme, the sterile tray box can be automatically taken out and pushed in according to different heights in the drawer type sterilization trolley, the automatic taking of the sterile tray box, the transfer and positioning of the sterile tray box and the loading of the infusion medicine in the sterile tray box are realized, and the whole process is fully automatic without manual intervention and assistance.

1. Name of the product in this design: Infusion Set Filter (IVF6AP-5.0). 2. Purpose of this design: For filtering infusion drugs. 3. The key design feature of this product lies in its cross-sectional shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: The A-A sectional view is a sectional view of the A-A portion in the main view; the A-A direction sectional reference view is a three-dimensional reference view of the A-A direction sectional view in the main view; the B-B direction sectional reference view is a three-dimensional reference view of the B-B direction sectional view in the bottom view.

A bilateral-driven patch-type drug infusion device comprises: an infusion unit; a driving wheel drives the screw to move by rotation, pushing the piston forward; a driving unit—includes at least two driving portions, the driving unit pivots around a pivot shaft, driving different driving portions in different direction; and an infusion tube structure, which includes a base and an infusion needle, and the base includes an initial position (L), a working position (N), and an intermediate position (M). The driving unit can drive the driving wheel in two directions for infusion drug, making the infusion unit have multiple infusion modes, enhancing user experience.

The invention discloses an intelligent infusion support, which belongs to the field of clinical infusion equipment and comprises a support body, a top plate, a double-shaft servo motor, a connecting plate, a supporting plate, a pressure sensor, a pressing block, an L-shaped plate, a hook, a baffle, a liquid changing block, an output pipeline, an input pipeline, a turntable, a bracket, a roller, an adjusting device, a base and a controller. Under the condition that medical staff do not need to replace infusion medicine bags / bottles, infusion work of multiple bags / bottles of liquid medicine is conducted on a patient in sequence, the workload of the medical staff is relieved, meanwhile, the situation in infusion can be sensed, and in the infusion process, the infusion efficiency is improved. If the weight of the medicine bag / medicine bottle in infusion changes abnormally, information is transmitted to a duty room of medical staff, so that the medical staff can observe unforeseen circumstances in time, injury to the patient caused by other circumstances such as blood return of the patient is avoided, and guarantee is provided for the safety of the patient.

The invention discloses an infusion support with a heat preservation function for operating room nursing, and relates to the technical field of medical instruments. By means of the heat preservation unit composed of the built-in ceramic heating piece and the heat insulation cotton layer and the high-precision temperature controller, the temperature of infusion liquid medicine in the containing box can be effectively kept within a set range, adverse reactions such as cold vibration and vasospasm caused by the fact that low-temperature liquid medicine is infused into the body of a patient are reduced, the infusion comfort and safety of the patient are improved, and the infusion safety of the patient is improved. An over-temperature protection circuit and an audible and visual alarm which are integrated in the temperature controller can automatically cut off a power supply and give an alarm, so that the use safety is doubly guaranteed; the adjusting column is driven to rotate by rotating the rotating plate externally provided with the handle, synchronous opening and closing or folding of the two movable plates can be achieved through the design of reverse threads in the movable seats on the two sides, and therefore the movable column and the hook assembly above the movable column can be stably and accurately lifted, and the requirements of patients of different heights, different operative body positions or medical staff for operation height are met.

The utility model provides an infusion medicine checker which comprises a vertical plate and a platform, a glass frame is fixedly installed on one side of the top of the vertical plate, a rotating mechanism is arranged at the bottom of the glass frame, a transmission mechanism is fixedly installed in the vertical plate and connected with the rotating mechanism through a pull rope, and the vertical plate is fixedly installed on one side of the top face of the platform. A transparent frame and a frame plate are inserted into the platform in a penetrating mode. The platform is used for placing various infusion medicines, different medicines can be stored by arranging the glass frame, the medicines to be checked can correspond to standard medicines only by moving the supporting plate, appearance checking is facilitated, meanwhile, two labels can be close to each other so that quick and accurate checking can be facilitated, and the working efficiency is improved. Meanwhile, checking and checking of drugs of different sizes can be achieved, the adaptability of the checker is improved, standard drugs in the transparent frame are used for comparison, meanwhile, label checking is achieved corresponding to the frame plate, and convenience and accuracy in the checking process are improved.

The present invention relates to the technical field of infusion heat preservation devices, and an infusion heat preservation nursing device, which includes a first storage box. A plurality of partition boards divide the interior of the first storage box into a plurality of storage cavities, and further includes a first heat preservation component and a second heat preservation component provided in different storage cavities. The first heat preservation component includes a bearing block, an assembly cavity is provided inside the bearing block, a first electric heating sheet is provided on the side wall of the assembly cavity, and a through hole corresponding to the position of the assembly cavity is provided on the bottom surface of the first storage box. The second heat preservation component includes a heat preservation box, a first assembly port and a second assembly port are respectively provided on two end faces of the heat preservation box, a heat preservation water belt is provided inside the heat preservation box, a groove is provided on the top surface of the heat preservation water belt, and a second electric heating sheet is provided below the heat preservation water belt. The present invention can heat the liquid medicine in the infusion medicine bottle through the first heat preservation component, and can perform secondary heating on the liquid medicine near the back of the patient's hand through the second heat preservation component, ensuring that the liquid medicine will not cool down before entering the patient's body.

The novel head-mounted infusion device comprises a head-mounted infusion container, an upper infusion hard tube, a drip cup, a lower infusion hose and an infusion needle head which are sequentially connected from top to bottom, the head-mounted infusion container comprises a control box and a plurality of annular hollow container single bodies, and the container single bodies are arranged in a stacked mode; the control box is installed at the bottom of the container single bodies on the bottom layer, each container single body is provided with a liquid medicine inlet and a liquid medicine outlet, each liquid medicine outlet is connected with an infusion tube, the infusion tubes extend into the control box, the infusion tubes extend out of the control box after being regulated and controlled by the control box, and the ends, extending out of the control box, of the infusion tubes are communicated with the upper infusion hard tube. Compared with a traditional infusion mode that infusion liquid medicine is contained in an infusion bottle / bag, the infusion bottle / bag has the advantages that one-time continuous normal infusion amount experienced by an infusion patient within one day or 12 hours from needle insertion to needle withdrawal is subpackaged into the single container bodies according to infusion requirements, so that the infusion patient can freely move in the infusion period.

The invention provides a wall-mounted foldable infusion liquid medicine suspension bracket, which belongs to the field of medical nursing auxiliary devices, and comprises a supporting and attaching panel and an opening surrounding plate which is mounted on the supporting and attaching panel and can slide horizontally. Fixing shafts are arranged on the two sides of the lower portion of the opening surrounding plate and rotationally connected with side supporting wings, and the supporting wings are fixed to the adjustable telescopic assemblies. When the telescopic assembly is in a horizontal or vertical state, the positioning and locking assembly locks the telescopic assembly. In the horizontal state, the side supporting wings drive the cooperation fixing assembly to abut against the supporting and attaching panel, and the opening surrounding plate is fixed. A through hole is formed in an embedded lining plate at the end of the telescopic assembly, and the built-in containing type hanging assembly is used for hanging an infusion container. Synchronous locking of sliding of the opening surrounding plate and unfolding of the adjustable telescopic assembly is achieved, operation is efficient, positioning is reliable, the hanging assembly can be completely stored, and using convenience, adjusting flexibility and space cleanliness are considered.

The invention discloses an intelligent statistical system for intraoperative input and output quantity, which comprises an infusion metering unit, an output liquid metering unit, a data processing unit and a data display unit, and is characterized in that the infusion metering unit is used for metering the quantity of all infusion medicines and transfusion blood; the liquid outlet metering unit is used for metering the quantity of all flowing-out body fluid and drainage liquid, the data processing unit is used for receiving and processing all data of the infusion metering unit and the liquid outlet metering unit, and the data display unit is connected with a displayer. The data display unit is used for displaying all data processed by the data processing unit through a display; the infusion metering unit comprises an infusion weighing module and an infusion data shooting module, the infusion weighing module is connected with a hook scale, and the infusion data shooting module is connected with a camera. And meanwhile, the metering accuracy is ensured.

The invention discloses a medical monitoring method and system based on internet-of-things information processing, and the method comprises the steps: monitoring the transfused time and / or transfused dose of a current transfused medicine corresponding to a monitoring terminal in an infusion process through the monitoring terminal, and returning a monitoring result to a server side in real time; the server side extracts patient information according to the received monitoring result, and determines corresponding dressing change time according to the standard infusion time and / or the standard infusion dosage of the current infusion medicine in the infusion program corresponding to the patient information to obtain a dressing change time sequence; according to the first dressing change time in the dressing change time sequence, the server side calculates the journey time required by the medical care terminal to move to the monitoring terminal corresponding to the first dressing change time through the real-time position information and the medical care information of the medical care terminal; and according to the first dressing change time and the journey time, the sending time for sending a dressing change prompt to the medical terminal is calculated, so that the current infusion medicine corresponding to the first dressing change time is just completely infused when the medical terminal arrives.

The invention belongs to the technical field of image recognition, and particularly relates to an infusion medicine foreign matter and consistency detection method based on image recognition, which comprises the following steps: S1, acquiring an infusion medicine image; s2, image preprocessing; s3, foreign matter detection; s4, verifying the consistency; a multispectral composite light source is adopted, visible light, near-infrared light and ultraviolet light are ingeniously combined, and on the basis of the principle that different substances have unique characteristic differences in all spectral sections, for example, the reflection characteristic of some foreign matter under the near-infrared light is obvious, and the transmission characteristic of other foreign matter under the ultraviolet light is prominent, the light intensity proportion is dynamically adjusted, and the light intensity of the foreign matter can be accurately measured. The feature differences can be highlighted to the greatest extent, so that the foreign matter is clearly visible in the image as under a spotlight, the clearly visible image builds a high-quality image basis for subsequent foreign matter detection, and the detection accuracy and reliability are greatly improved.

1. Name of the product under this design: Packaging bag (powder-liquid dual chamber). 2. Application of this design product: used for packaging of powder-liquid double-chamber bags for infusion of medicines. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: main view.

The novel head-mounted infusion device comprises a head-mounted infusion container, an upper infusion hard tube, a drip cup, a lower infusion hose and an infusion needle head which are sequentially connected from top to bottom, the head-mounted infusion container comprises a control box and a plurality of annular hollow container single bodies, and the container single bodies are arranged in a stacked mode. The control box is installed at the bottom of the container single bodies on the bottom layer, each container single body is provided with a liquid medicine inlet and a liquid medicine outlet, each liquid medicine outlet is connected with an infusion tube, the infusion tubes extend into the control box, the infusion tubes extend out of the control box after being regulated and controlled by the control box, and the ends, extending out of the control box, of the infusion tubes are communicated with the upper infusion hard tube. Compared with the traditional infusion mode that infusion liquid medicine is contained in an infusion bottle / bag, one-time continuous normal infusion total quantity experienced by an infusion patient in one day or 12 hours from needle insertion to needle withdrawal is subpackaged in a plurality of single container bodies according to the infusion requirements; therefore, the infusion patient can move freely during infusion.

A dialysis catheter clearance device comprising a medication delivery device configured to connect to the proximal end of the infusion catheter and selectively output an infusion drug into the infusion catheter. An infusion catheter having the proximal end and an opposing distal end, the proximal end of the infusion catheter connected to the medication delivery device, and the distal end of the infusion catheter having an opening through which medication exits the infusion catheter. An infusion catheter placement device is located at or near the distal tip of the infusion catheter and configured to expand to having an outer dimension that is greater than an inner dimension of the dialysis catheter when the infusion catheter placement device is outside the dialysis catheter and contract to an outer dimension that is less than the inner dimension of the dialysis catheter when the infusion catheter placement device is inside the dialysis catheter.

The invention relates to the technical field of medical infusion cabinets, in particular to a control method and device of a medical infusion cabinet system. The method comprises the steps that a first door body is controlled to be opened in response to a first door body opening instruction sent by a first terminal; updating the target idle placement position to an occupied placement position, and obtaining specification information of the target infusion medicine; obtaining first identity information of the first terminal, generating infusion medicine placement record information based on the specification information, the update record and the first identity information, and sending the infusion medicine placement record information to the second terminal; in response to a second door body opening instruction sent by the first terminal, controlling a second door body to be opened; updating the target occupied placement position into an idle placement position, and recording the updating record; second identity information is obtained, infusion medicine taking-out record information is generated based on the updating record and the second identity information, and infusion medicine placing record information is sent to the second terminal. The problem that infusion medicine is placed disorderly and managed disorderly can be solved.

The utility model discloses an infusion bag with a liquid medicine mixing function, relates to the field of infusion bags and solves the problem that liquid medicine mixing steps of an infusion bag are tedious and the like. The infusion bag comprises a soft bag, an isolating strip is arranged in the middle of the interior of the soft bag, a mixing bag is arranged on the other side of the surface of the isolating strip, and an adapter is inserted into one side of the surface of the soft bag; one end of the surface of each connector is fixedly connected with a connecting ring, the surface of each connecting ring is in threaded connection with a closing cover, and a rubber head is arranged in each connector. When a person needs to mix infusion liquid medicine in the soft bag, the soft bag, the isolation strip and the mixing bag can be used in cooperation, the person can fold the mixing bag to extrude towards one side of the isolation strip, the isolation strip is burst open by pressing the mixing bag, and then the infusion liquid medicine in the mixing bag is placed in the soft bag; therefore, a person can conveniently and quickly mix infusion liquid medicine.

This invention belongs to the technical field of medical infusion equipment, and specifically relates to an infusion device for drug administration, comprising a hollow base, a battery fixedly connected to the inner wall of the hollow base, a connecting cylinder fixedly connected to the top of the hollow base, a support rod movably connected to the inner wall of the connecting cylinder, a threaded hole on the top side wall of the connecting cylinder, and a fastening bolt threaded into the hole wall of the threaded hole, a top plate fixedly connected to the top of the support rod, and a protective mechanism fixedly connected to the lower surface of the top plate. This invention provides the infusion device with highly efficient protective capabilities, ensuring that the air filter of the infusion set is not clogged, maintaining the pressure balance inside and outside the infusion bottle, and improving the continuity of the drug administration process. Furthermore, the infusion device also has functions for regulating the drug solution temperature and keeping the patient's hand warm during infusion, thereby improving the therapeutic effect of infusion drug administration, enhancing the reliability of the infusion device, and ensuring the safety and comfort of the patient during infusion treatment.

The utility model relates to the technical field of infusion, and discloses a portable infusion device which comprises a main body assembly and a supporting assembly installed below the main body assembly, a folding assembly is installed on the middle section of the main body assembly, a down-regulation assembly is installed above the main body assembly, and an infusion assembly is fixedly installed at the top of the down-regulation assembly. After the device is used, the upper supporting column and the fixed sliding sleeve are pulled out upwards, so that the fixed sliding sleeve does not sleeve the lower supporting column any more, and at the moment, the upper supporting column and a part fixedly connected with the upper supporting column are folded on the side wall of the lower supporting column under the clamping action of a transmission connecting piece, a first clamping head and a second clamping head; when the infusion medicine bottle is replaced, a downward pressing button can be pressed to enable a positioning clamping block to contract inwards along the clamping position of the positioning clamping block and the upper supporting column, an adjusting clamping sleeve moves downwards in the vertical direction of the upper supporting column so as to reduce the height, and replacement is convenient.

The invention discloses a high-pressure exosmosis-resistant safe infusion device for high-irritation medicine infusion, and relates to the field of infusion devices. According to the high-pressure-exosmosis-resistant safe infusion device for infusion of the high-irritation medicine, the injection tube, the first spring, the first clamping ball, the second spring and the second clamping ball are arranged in the catheter at the end of the remaining needle, when infusion pressure changes, thrust of infusion liquid medicine to the second clamping ball is increased, a gap between the second clamping ball and the infusion tube becomes small, and the infusion pressure is increased; when the pressure of the blood vessel of the patient changes, the thrust applied to the first clamping ball is increased, the first clamping ball can be pushed to the end of the infusion needle tube and the end of the injection tube, an infusion liquid medicine backflow channel is blocked, blood in the blood vessel is prevented from flowing back, and therefore the blood vessel is prevented from being infused. And through the arrangement of the double anti-backflow structures, the stability of the liquid medicine in the infusion device can be maintained, and the anti-exosmosis capacity of the infusion device is remarkably improved.