46 results about "Surgical anesthesia" patented technology

The invention relates to the technical field of anesthesia monitoring, in particular to a vital sign monitoring system and method in the anesthesia process. Acquiring brain wave time sequence signals of the pregnant woman and time sequence data of various physical sign parameters; in view of different fluctuation states of physical sign parameters in different anesthesia stages, the anesthesia stage corresponding to each moment needs to be judged. Then, the change fluctuation of each physical sign parameter and the historical moment data value of the same anesthesia stage is analyzed, a fluctuation index is determined, and the weight of each physical sign parameter at each moment is dynamically calculated; and calculating the surgical anesthesia risk index in combination with the sign parameter change period, the data value and the weight at the historical moment. And finally, vital sign monitoring is carried out based on the surgical anesthesia risk index at each moment. According to the method, the weights of the physical sign parameters in different anesthesia stages are dynamically allocated for parameter fusion, the anesthesia risk model is established, more accurate surgical anesthesia risk indexes are obtained, the accuracy of a monitoring result is ensured, and risk trend prediction is realized.

The invention provides a surgical anesthesia information early warning method and system, and the method comprises the steps: obtaining a BMI index of a patient based on coded structured data, and carrying out the mining and analysis of a potential state of the patient through combining a mining analysis model and vectorized unstructured data; based on the unstructured data, collecting an anesthesia physiological signal of the patient and an electroencephalogram signal in an anesthesia state, and classifying the anesthesia state according to the anesthesia physiological signal and the electroencephalogram signal to obtain a classified anesthesia state; and collecting an anesthesia depth data set based on the potential state and the classified anesthesia state, extracting anesthesia features according to the anesthesia depth data set, constructing an early warning model, and inputting the feature input sample into the early warning model to enable the early warning model to generate early warning information. Early warning is performed through the early warning model to generate the early warning information, so that the state of the patient can be timely processed and adjusted in advance.

The invention discloses an anti-bedsore application system of a micro air bag structure in surgical anesthesia, which comprises a micro air bag cushion, the micro air bag cushion comprises a plurality of micro air bag main bodies, the outer parts of the plurality of micro air bag main bodies are all provided with air inflation interfaces and valves, and the micro air bag main bodies are connected with the micro air bag main bodies; and the micro air bag main body is provided with a high-precision pressure sensing module and a control system which correspond to the micro air bag main body. The invention has the following beneficial effects: 1, light weight and miniaturization: the air bag is light, thin and soft, and can be folded and stored after deflation; 2, innovative micro air bag structural design: a plurality of micro air bags are accurately arranged in key areas, which are easily pressed, of a patient; each air bag is provided with an advanced intelligent control system, the system can regulate and control the inflation and deflation degree of each air bag in real time according to the physiological curve and the body pressure distribution condition of the patient, manual regulation and control can also be selected, and therefore precise management and effective relieving of the pressure of the pressed local part are achieved.

The invention relates to the technical field of medical instruments, in particular to a tracheal intubation through tracheostomy, which comprises a catheter and a respiration assisting mechanism, a sliding tube is in vertical sliding fit with the inner wall of the lower end of the catheter, the lower end of the sliding tube is wedge-shaped, and air holes are formed in the side wall of the lower end of the sliding tube; an air bag fixedly sleeves the outer wall of the catheter; the guide pipe is slidably sleeved with a chassis, the top of the chassis is fixedly connected with an elastic clamping sleeve, and buffering grooves are symmetrically formed in the two sides of the clamping sleeve. The airbag is positioned below the chassis; the top end of the catheter is fixedly connected with a connector for connecting a respiration assisting mechanism; the catheter is internally provided with an inner drainage assembly used for cleaning sputum attached to the inner wall of the catheter and an outer drainage assembly used for cleaning sputum attached to the outer wall of the catheter. A driving assembly used for driving the sliding pipe to vertically slide in the guide pipe is arranged in the guide pipe. The tracheostomy tube is complete in structure, and the respiratory tract smoothness of a tracheostomy patient or the respiratory support effect of the tracheostomy patient in operative anesthesia can be effectively improved.

The utility model relates to the technical field of medical auxiliary equipment, in particular to a device for preventing a patient from falling from a bed during operation anesthesia. The utility model provides an anti-falling bed device for an operative anesthesia patient, which can be used for fixing four limbs of the patient and improving the safety of the patient. A device for preventing an anesthetized patient from falling from a bed in an operation comprises a bed board, connecting rods, baffles, cushion boards, hand fixing assemblies and the like, the connecting rods are connected to the left side and the right side of the bed board, the front baffle board and the rear baffle board are connected to the connecting rods in a damping sliding mode, and the cushion boards are connected to the upper side of the bed board. A hand fixing assembly capable of fixing the hands of a patient is arranged on the bed board. The two hands of a patient are placed on the supporting plates respectively, the two hands of the patient are fixed through the first bandages, then the two legs of the patient are placed on the foot plates respectively, the two legs of the patient are fixed through the second bandages, and the effects that the four limbs of the patient can be fixed, and the safety of the patient is improved are achieved.

The invention discloses a doctor shift change data processing method and device, terminal equipment and a storage medium. The method comprises the following steps: acquiring a plurality of shift exchange data; wherein each piece of shift change data comes from a hospital information system, a laboratory information system, an image archiving and communication system, a surgical anesthesia information management system or a mobile nursing information system; searching a corresponding target data matching rule from a data matching rule base according to all the shift exchange data; determining a corresponding target data processing strategy according to the target data matching rule; and processing all the shift change data according to the target data processing strategy. The shift change data is automatically processed according to the data matching rule, and time and labor cost are greatly saved.

The utility model provides a pedicle screw implantation guider. The pedicle screw implantation guider comprises a fixed guide rod, a sliding guide rod and a moving assembly. A positioning piece is arranged at one end of the fixed guide rod and used for being in positioning fit with a screw tail of an implanted screw, and the length direction of the fixed guide rod is the same as that of the screw. The sliding guide rod is provided with a first sliding piece, the first sliding piece is matched with the fixed guide rod in a guiding mode, and the sliding guide rod is perpendicular to the fixed guide rod. Due to the structural design of the guider, no matter how the fixed guide rod moves, the movable guide rod is always parallel to the fixed guide rod. The bone structure of a patient is not changed before and during the operation, so that for the vertebral pedicle, the included angle of the vertebral pedicle on the two sides of the same section of vertebral body is not changed, the direction of the vertebral pedicle on one side is used as a reference to determine the direction of the vertebral pedicle on the other side, interference of the posture of the patient, operation anesthesia and other factors is avoided, and the accuracy of the screw placement direction is higher. Positioning is more accurate, and operation safety can be improved.

The invention discloses a surgical anesthesia information intelligent management system, and relates to the technical field of clinical medical assistance, and the system comprises a monitoring center which is in communication connection with an information input module, a data acquisition module, a data processing module, an anesthesia simulation module and an intra-operative early warning module. By constructing a historical anesthesia operation database, an initial anesthesia reference scheme closest to the condition of a patient can be generated according to unique diagnosis information, physiological features and operation types of the patient, and based on the initial anesthesia reference scheme and initial physical sign data fed back by the patient for initial anesthesia, the initial anesthesia reference scheme is obtained through feature comparison and compensation calculation. The initial anesthesia reference scheme is optimized, and meanwhile an intraoperative anesthesia efficiency simulation curve is obtained; an anesthesia scheme in one-to-one correspondence with patients is realized, and the safety and the effectiveness of an anesthesia operation process are improved.

The utility model discloses a surgical anesthetic gas recovery device which comprises a controller, a recovery assembly located above the controller and used for recovering anesthetic waste gas, a supporting assembly located on one side of the controller, a plurality of gas storage devices arranged on the supporting assembly and a lifting assembly located on one side of the controller and further comprises a temporary storage assembly. The temporary storage assembly is used for temporarily storing recycled waste gas generated in the gas storage equipment replacement process and comprises an outer protective cover, an air bag is arranged in the outer protective cover, and an air nozzle is arranged at the bottom of the outer protective cover; the utility model relates to the technical field of anesthesia equipment. According to the surgical anesthetic gas recovery device, through the arranged temporary storage assembly, waste gas conveyed by the recovery assembly can be collected in a short time through self-expansion of an air bag in the bottle body replacement process, the recovery assembly can continuously work, meanwhile, anesthetic waste gas can be prevented from being exhausted into air, and the use effect is better.

The invention provides an intelligent medical gas warming and heating constant temperature system, and relates to the technical field of gas warming and heating constant temperature, and the system is characterized in that a temperature controller is in communication connection with a pipeline heating device; the pipeline heating device is used for heating gas in the pipeline and comprises a plurality of heating sleeves, and all the heating sleeves are uniformly arranged on the outer wall of the pipeline; the temperature controller is used for executing the following steps that the corresponding required heat Q < 1 > within the unit time period delta t when the gas temperature in the pipeline is maintained to be T < set > is determined; the number NUM of the started heating jackets is determined according to the Q < 1 >, the maximum heat conduction coefficient eta < max > of the heating jackets and the corresponding working current I < 1 > at the eta < max >; a pipeline heating device is controlled to start NUM heating sleeves; the working current of the pipeline heating device is controlled according to the gas conveying flow velocity parameter in the pipeline; the method can meet the strict requirements of scenes such as intensive care and surgical anesthesia on gas temperature precision.

The invention discloses a perioperative delirium risk classification method and system for unbalanced medical data, and relates to the field of computer data processing and machine learning. Comprising the following steps: extracting relevant data of examination and surgical anesthesia of a patient, and marking relevant data corresponding to delirium; constructing a delirium risk classification model, inputting the marked related data into the delirium risk classification model, and training the delirium risk classification model by utilizing a method for dynamically adjusting a category balance factor and a classification difficulty factor; and inputting to-be-evaluated perioperative period patient data into the trained delirium risk classification model, and performing classification prediction on the delirium risk in the perioperative period. The gradient calculation process is reconstructed on the basis of the gradient boosting tree, the problem of model training deviation caused by scarcity of positive samples in medical data is solved, and doctors are assisted in efficiently completing scientific research and clinical work.

The invention belongs to the field of medical apparatuses and instruments, particularly relates to implantable real-time plasma concentration monitoring equipment for surgical anesthesia, and aims to solve the problems that existing blood gas monitoring is large in trauma, discontinuous, prone to electromagnetic interference, poor in stability and the like. The device comprises an optical fiber remaining needle assembly, a multi-parameter optical fiber sensing probe, an optical signal modulation and demodulation unit, a reference optical path compensation module, a cross sensitivity correction unit and a central processing terminal, and in-situ synchronous monitoring of oxygen partial pressure, carbon dioxide partial pressure, pH value, temperature and flow velocity is achieved through an all-optical-fiber metal-free structure. The system has the advantages of electromagnetic interference resistance, long-term stability, no frequent calibration and suitability for an MRI environment.

The invention discloses a surgical safety checking system based on a marked surgical cap, and aims to improve the efficiency and accuracy of surgical safety checking and reduce the occurrence rate of surgical errors. Comprising a surgical cap made of a disposable non-woven fabric material, a detachable label area is arranged at the front end of the surgical cap and used for marking patient information and surgical eye marks, and a brim is lined with a sweat absorbing layer to improve the comfort degree; the data interface module is used for being in butt joint with a surgical anesthesia system to achieve automatic information reading and checking. The mobile terminal application program module is convenient for medical staff to scan operating cap information for quick checking; the operation safety checking process module covers checking links before anesthesia, before an operation and before a patient leaves an operating room, it is ensured that information checking of each link is correct, and checking details are automatically recorded. The system optimizes the verification process and guarantees the safety of the patient by integrating the information marking and information technology of the operating cap, has remarkable clinical application value and social benefit, and can be widely applied to the field of medical operation.

The invention discloses a control method, system and equipment for anesthesia prognosis optimization and a storage medium, and relates to the technical field of biomedical engineering. The cognitive function evaluation data, the brain structure image data and the brain function image data of the patient before the operation are calculated, and a cognitive expression index and a nerve image index are obtained; calculating the neural image index and the cognitive performance index to obtain a cognitive reserve index; determining the risk level of the target patient according to the cognitive reserve index, and inputting the physiological data of the patient and the risk level into a technology library for query to obtain a core regulation and control technology; adjusting the stimulation parameters of the core regulation and control technology according to the cognitive reserve index, and generating a noninvasive nerve regulation and control scheme according to the core regulation and control technology, the adjusted stimulation parameters and the stimulation target; and sending the non-invasive nerve regulation scheme to non-invasive nerve regulation equipment to control the non-invasive nerve regulation equipment to intervene the target patient before the operation. By implementing the technical scheme provided by the invention, the stress ability of the brain of the patient to surgical anesthesia is improved.

The invention relates to an intraoral device for avoiding use of the external craniofacial complex as a support for devices relating to the attachment of endotracheal tubes currently used for intubation in surgical anaesthesia processes or in intensive care units, emergency transport vehicles or any type of airway ventilation, which comprises a bite tube (1) that defines a region (6) for the endotracheal tubes to pass through; and a front plate (2) and a balloon (5) which are joined to the bite tube and which form means for preventing axial or lateral movement of the bite tube.

The invention belongs to the technical field of medical instruments, and particularly relates to a knob protection mechanism and an anaesthesia machine. The knob protection mechanism comprises a housing, a sealing plate, a transparent warning plate and an elastic piece, the housing is provided with a first knob receding groove and a first scale perspective window, and the sealing plate is assembled in the housing in a front-back sliding mode; the second knob abdicating groove can control the exposed length of the knob, and the exposed length of the knob is not enough to hold in a normal state so as to prevent misoperation. The rear end of the transparent warning plate is hinged to the housing, the front end of the transparent warning plate is slidably hinged to the sealing plate, the transparent warning plate synchronously overturns along with the sealing plate during adjustment to shield the first scale perspective window, and striking warning is formed through orange-yellow color. The mechanism is further provided with a limiting sliding groove, a limiting protrusion, a shifting block and other structures, the operation process is simplified, one-hand operation is adapted, and disassembly, assembly and maintenance are convenient. The respiration anesthesia machine comprising the mechanism can improve the safety and convenience of standby oxygen regulation, is suitable for various medical scenes, and provides reliable guarantee for regulation and control of surgical anesthesia oxygen supply.

The invention discloses an anesthesia equipment regulation and control method and system based on a large model, and belongs to the field of large model application, and the method comprises the steps: based on a medical record number of a patient, extracting preoperative medical record data of the patient from a hospitalization system, and extracting an intraoperative real-time physiological monitoring index of the patient from a surgical anesthesia management system; inputting the preoperative medical record data, the intraoperative real-time physiological monitoring index and the anesthesia operation problem to be decided into an anesthesia operation consultation model, so that the anesthesia operation consultation model outputs first operation information corresponding to the anesthesia operation problem, the anesthetist in the operation regulates and controls the anesthesia equipment in the working state according to the first operation information. By implementing the application, the problem that the accuracy of anesthesia operation decisions is difficult to guarantee in the prior art can be solved.

The utility model relates to the technical field of puncture needles for surgical anesthesia, in particular to a puncture needle for female breast surgical anesthesia, which is characterized by comprising a base for connecting an injector; the puncture needle is fixedly connected with the base and used for injecting the anesthetic medicine received by the base into a designated position through the puncture needle; the length of the puncture needle ranges from 14.5 cm to 18.5 cm. Due to the fact that the sizes of breasts of different women are different, if a certain area of the breasts is subjected to puncture anesthesia from hidden parts such as armpits, the penetrating distance needs to be long, and therefore the length of the puncture needle is 14.5 cm to 18.5 cm, and the diameter of the puncture needle is 0.7 mm to 1.2 mm. The bowknot-shaped protrusions are arranged on the two sides of the puncture needle base, so that a doctor can conveniently hold the base with fingers, and then the base is connected with an injector.

This invention provides a target-controlled assisted drug delivery system for painless surgery anesthesia, belonging to the field of medical technology. It includes: an initial protocol generation module for determining the initial drug delivery protocol based on the type of painless surgery anesthesia and the patient's basic physiological information; a trial drug delivery control module for administering trial drugs to the patient based on the initial drug delivery protocol and recording the changes in the patient's electroencephalogram (EEG) signals and physiological signs during the trial drug delivery process; a resistance analysis module for analyzing the patient's resistance to the anesthetic drug in real time based on the EEG signal changes and physiological sign changes; and a drug delivery adjustment module for adjusting the initial drug delivery protocol in real time based on the resistance level and continuing drug delivery to the patient based on the adjusted protocol and medical intervention instructions until the drug delivery is completed. This improves the target control accuracy of anesthetic drug dosage and delivery rate during painless surgery.

The utility model belongs to the technical field of surgical anesthesia, and particularly relates to a general anesthesia pipeline fixator which comprises a fixing frame. The sliding groove is formed in the fixed frame; the moving block is connected into the sliding groove in a sliding manner; the variable-diameter fixing component is fixedly connected to one side of the fixing frame, and the variable-diameter fixing component is close to one end of the fixing frame; the protection component is arranged between the variable-diameter fixing component and the anesthesia pipeline; the first limiting component is arranged between the moving block and the sliding groove; the carding component is arranged at the opening of the sliding groove and fixedly connected with the moving block, and one end of the carding component is higher than the side, provided with the variable-diameter fixing component, of the fixing frame; and the second limiting component is arranged on the carding component. According to the anesthesia tube fixator, when an anesthesia tube is too long, the anesthesia tube fixator can adapt to the length of the anesthesia tube by adjusting the position of the variable-diameter fixing component in the sliding groove, the possibility of mistaken touch is reduced, and meanwhile the fixator can be suitable for fixing anesthesia tubes with different tube diameters due to the arrangement of the variable-diameter fixing component.

The utility model discloses a kind of exercise recovery structures for neurosurgery anesthesia post-operation, it is related to medical instrument technical field, including fixed main frame, two hollow holes are equipped in the fixed main frame, one rotating rod is rotatably arranged in each hole hole;The arc-shaped hole of symmetric setting is set in the both sides of the fixed main frame;Each rotating rod is symmetrically provided with rotating connecting frame;Two groups of pressing components are connected on the fixed main frame, and two groups of pressing components are symmetrically arranged on the both sides of fixed main frame;Two groups of elastic connecting components are arranged between two groups of pressing components, and two groups of elastic connecting components are respectively arranged on the upper and lower ends of two groups of pressing components;The recovery device of anesthesia patient in the prior art is generally used alone, cannot make the recovery training of multiple parts of patient, leads to the problem of poor practicality of the recovery device.

The invention discloses a clinical operation anesthesia administration decision-making system based on artificial intelligence, which not only comprehensively considers the basic information of a patient, but also considers the real-time change condition of vital signs at the same time, and combines the past medical history of the patient and used vasoactive drugs to determine the clinical operation anesthesia administration decision-making system. The real-time doses of the propofol and the remifentanil are given, so that data reference is provided for anesthetists; therefore, an anesthetist can judge whether to accept the drug dosage decision according to the drug dosage decided by the system and the vital sign fluctuation condition made by the system according to the existing vital signs, the medication condition and the characteristics of a patient.

The invention belongs to the technical field of anesthesia risk assessment, and discloses an artificial intelligence-based dynamic operation anesthesia risk assessment system. The evaluation system comprises a data acquisition module used for acquiring associated data of a patient in a surgical anesthesia process; the data storage management module is used for storing associated data; the real-time risk judgment module is used for analyzing the processed associated data to judge whether the anesthesia of the patient has a real-time abnormal risk or not; the potential risk judgment module is used for further analyzing the obtained associated data to judge whether the anesthesia of the patient has a potential abnormal risk or not; the risk assessment module is used for carrying out risk assessment on abnormal risk conditions based on the analysis result; according to different static basic data of different patients, the physiological index benchmark is customized for each patient instead of adopting a static physiological index benchmark, so that the subsequent risk assessment better fits the real physiological status of the patient, and the risk assessment accuracy is improved.

1. The name of the design product: anesthesia monitor. 2. The use of the design product: the design product is used for surgical anesthesia monitoring. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a hospital infection real-time traceability and intelligent early warning method and related equipment based on UWB ultra wide band positioning, and the method comprises the steps: obtaining multi-source heterogeneous data through an ultra wide band, a hospital information system, a laboratory information system, a disinfection supply center management system and a surgical anesthesia management system; performing time sequence alignment, feature fusion and redundancy filtering on the multi-source heterogeneous data, and constructing a hospital infection prevention and control data set; constructing a target quantification model; executing multi-dimensional risk identification and quantitative analysis according to the hospital infection prevention and control data set and the target quantitative model, and outputting a risk quantitative value of a target risk; according to the preset personnel weight, the preset area risk coefficient of the target area, the preset risk weight of the target risk and the risk quantized value, obtaining a risk assessment index; and outputting a target early warning result and a target early warning processing task according to the risk quantized value and the risk assessment index. The system can trace hospital infection risk events in the whole course and perform intelligent early warning, and can be widely applied to the technical field of wireless positioning.

The present invention relates to the technical field of gas warming and heating and temperature stabilization. Provided is an intelligent medical gas warming and heating and temperature stabilization system. The system comprises: a temperature controller, which is in communication connection with a pipe heating apparatus; and the pipe heating apparatus, which is used for heating a gas in a pipe, wherein the pipe heating apparatus comprises several heating sleeves, and all the heating sleeves are uniformly arranged on the outer wall of the pipe. The temperature controller is used for executing the following steps: determining corresponding required heat Q1 for maintaining the temperature of the gas in the pipe at Tset within a unit time period Δt; on the basis of Q1, the maximum heat conduction coefficient ηmax of the heating sleeves, and a corresponding operating current I1 at ηmax, determining the number NUM of heating sleeves to be started; controlling the pipe heating apparatus to start the NUM heating sleeves; and on the basis of a gas delivery flow rate parameter in the pipe, controlling the operating current of the pipe heating apparatus. The present invention can meet the stringent requirements of scenarios, e.g., intensive care and surgical anesthesia, with regard to the precision of the temperature of a gas.

The present application relates to the technical field of clinical risk early warning, in particular to a surgery anesthesia intraoperative risk early warning method based on AI multi-modal data fusion, comprising the following steps: constructing an ideal steady-state residence model based on anesthesia records, monitoring signs in combination with blood loss and calculating cumulative load of drug metabolism, evaluating physiological steady-state confidence, comparing benchmarks to determine implicit compensation failure, and generating compensation depletion risk early warning instructions. In the present application, a probability density model representing the physiological steady-state maintenance capability is constructed, the risk assessment dimension is expanded from a single numerical amplitude to a time residence length, the blood loss and drug load data accumulated in real time during the operation are used to perform dynamic time domain compression and coordinate translation transformation on the benchmark distribution curve, the implicit failure risk is identified in advance when the vital sign readings have not yet exceeded the normal range but the compensation potential is about to be depleted, the steady-state collapse trend caused by the time cumulative effect is effectively quantified, and the forward-looking of risk identification is improved.

An opioid independent surgical anesthetic composition includes an injectable dosage form of a hydrogel having a plurality of solid lipid matrix particles entrapped therein. The solid lipid matrix particles include a lipophilic local anesthetic drug and a lipid glyceride (e.g., saturated triglyceride or lipid blend of various lipid glycerides). Methods for creating a long-acting local anesthetic product can include creating a bulk solid of a lipid matrix product by heating a lipid solvent above its melting point, dissolving a lipophilic local anesthetic drug therein, reducing a temperature of the resultant drug-lipid solution to below the melting point of the lipid solvent, and heat annealing the lipid matrix to remove or reduce presence of any unstable polymorphs in the lipid matrix. The methods can further include crushing the bulk solid of the lipid matrix product to form solid lipid matrix particles and entrapping the solid lipid matrix particles within a hydrogel.

The invention relates to the field of medical instruments, in particular to an anesthetic quantitative spraying device for surgical anesthesia, which comprises a liquid storage carrier and an atomizing tube, a liquid storage cavity is formed in the liquid storage carrier, and the liquid storage cavity is communicated with the atomizing tube; a quantitative liquid discharging mechanism and an atomizing mechanism are arranged on a communicating path of the liquid storage cavity and the atomizing pipe, the quantitative liquid discharging mechanism comprises a liquid inlet groove, a first outlet and a second outlet are communicated between the liquid inlet groove and the liquid storage cavity, a piston column is arranged in the liquid inlet groove in a sliding fit mode, a driving mechanism is arranged at one end of the piston column, and a pressure cavity is communicated with one end, away from the driving mechanism, of the liquid inlet groove; the pressure cavity is communicated with the atomizing pipe, and a pressure relief mechanism is communicated with the communicating path of the pressure cavity and the atomizing pipe; a spiral chute and a straight groove are formed in the piston column, the spiral chute is circumferentially formed in the outer side of the piston column, and the pressure cavity communicates with the spiral chute through the straight groove; the first outlet and the second outlet are connected and disconnected with the liquid inlet groove based on the displacement distance of the piston column. According to the invention, accurate, constant and quantitative injection of anesthetic liquid medicine can be realized.

1. The name of this design product: Inhalation anesthesia device. 2. Purpose of this product design: This product design is used for surgical anesthesia. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.