42 results about "Anesthesia device" patented technology

The invention provides an anesthesia device capable of achieving timed supplementing, and relates to the technical field of medical instruments. A medicine placing part is arranged outside the control part; a medicine pushing part is arranged at the tops of the control part and the medicine placing part; a medicine feeding part is arranged at the bottom of the medicine placing part; the replacement cylinder is connected to the lower portion of the medicine containing shell in a threaded mode, so that a medicine storage area and a medicine placement area are arranged, the medicine placement area is connected with an infusion tube, the anesthetic is normally added, meanwhile, liquid medicine is prevented from entering the medicine storage cylinder, and the influence on the liquid medicine in the medicine storage cylinder is avoided; the problems that after an operation, regular anesthetic pushing is usually conducted on a patient through an analgesia pump, the patient is connected with an infusion tube through a three-way tube, but due to the fact that the connected anesthetic bag is directly connected with the infusion tube under the action of the three-way tube, liquid medicine easily permeates into the anesthetic bag, and the anesthetic bag is not prone to falling off are solved. The problem that the prepared anesthetic is inconvenient to use for the second time is solved.

The technology described herein can identify usage information for a sensor. In one example, an anesthesia device can include a processor to obtain usage information from a first flow sensor coupled to the anesthesia device. The processor can also determine that the usage information exceeds a predetermined limit and generate an alert indicating that the first flow sensor is to be replaced.

Provided is a vehicle for ultrasound-guided interventional operation, including: a vehicle body, wherein the vehicle body is provided with a carriage; an operating table arranged in the carriage; an operating lamp arranged in the carriage; an ultrasonic device arranged in the carriage, wherein the ultrasonic device is configured to provide the ultrasonic guidance; a monitoring device arranged in the carriage, wherein the monitoring device is configured to monitor vital signs of patients during the operation procedure; an anesthesia device arranged in the carriage, wherein the anesthesia device is configured to maintain an anesthesia state of the patient during the operation procedure; and a fixing device arranged on an inner wall of the carriage, wherein the fixing device is configured to fix the ultrasonic device, the monitoring device and the anesthesia device with the inner wall of the carriage during a driving process of the vehicle body.

The present application provides an anesthesia control system configured to: acquire a plurality of physiological parameters of a patient; acquire anesthetic parameters of a plurality of anesthesia devices applied to the patient; acquire a depth of anesthesia index of the patient; and automatically generate a control instruction based on the plurality of physiological parameters, the anesthetic parameters, the depth of anesthesia index, and a target depth of anesthesia index, the control instruction being used to control the anesthetic parameters of each of the plurality of anesthesia devices such that the depth of anesthesia index of the patient is regulated to the target depth of anesthesia index. The present application further provides an anesthesia system and a non-transitory computer-readable medium.

This invention belongs to the field of medical experimental technology, specifically relating to a dental pre-anesthesia device based on an edible matrix, its preparation method, and its application. The device includes a handheld stick, a sugar ball, and a receiving box with a through hole. The box contains a gel anesthetic, which consists of an outer layer of sustained-release gel matrix and an inner anesthetic gel unit. The sustained-release gel matrix is ​​made of gelatin, pectin, or sodium alginate and is ring-shaped to conform to tooth shape. The anesthetic gel unit contains components such as lidocaine hydrochloride, chitosan, and carbomer 980, exhibiting high adhesiveness. Preparation involves first obtaining the anesthetic gel unit, then encapsulating it with the sustained-release gel matrix and coating it with sugar, and finally assembling the device. This device, through its edible matrix and sugar coating, transforms the anesthesia process into a "candy-eating" experience, significantly reducing patient fear, precisely conforming to the teeth and gingival margin, preventing anesthetic leakage, and improving the safety and effectiveness of anesthesia, making it particularly suitable for pediatric dental pre-anesthesia.

The invention discloses an inhalation type anesthesia device which comprises an anesthesia machine, a heating humidifier, a mask and a purifier. According to the heating humidifier, an innovative heat and humidity linkage design is adopted, the phase-change heat exchange module is driven by the rotating disc to be periodically switched between an air inlet channel and an expiration channel, and a pure mechanical linkage mechanism is used for synchronously controlling starting and stopping of the humidifying module. When the phase-change heat exchange module is switched into the air inlet channel, the stored heat is used for heating sucked air, and meanwhile humidification is started in a linkage mode; and when the module rotates out, humidification is automatically stopped. The device realizes intelligent collaborative management of heat and humidity, effectively solves the problems of over-dry or over-wet gas, energy waste and the like in a traditional anesthesia device, remarkably improves the comfort level and treatment safety of a patient, and has the advantages of compact structure, convenience in operation, energy conservation, high efficiency and the like.

The invention provides a medicament concentration adjustable anesthesia device, and relates to the technical field of medical apparatuses and instruments. Two side baffles are fixed to the two sides of the top of the base, a front baffle and a rear baffle are slidably installed on the inner side of the base, and the front side and the rear side of each side baffle are each connected with a bolt in a screwed mode through threads. An anaesthesia machine is mounted at the top of the base; a mixing tank is mounted in front of the anaesthesia machine; a motor is mounted on the inner side of the bottom of the mixing tank, a stirring shaft is rotationally mounted on the inner side of the mixing tank, the top end of a motor spindle is fixedly connected with the bottom end of the stirring shaft, and a mixing pipe and stirring teeth are arranged on the outer side of the stirring shaft; a positioning bolt is further mounted at the top of the mixing tank in a sliding manner. Various medicaments can be directly mixed in the anaesthesia machine without manual mixing, the stable mixing concentration is ensured, the side baffles, the front baffle and the rear baffle are matched to prevent the periphery of the anaesthesia machine from being damaged due to collision when the anaesthesia machine needs to be carried outdoors for use, and the anaesthesia machine is safer to carry.

The present invention provides a carbon dioxide absorber canister-free anesthesia device. It comprises a ventilator, an anesthetic vaporization canister, a gas sieve canister, and a molecular sieve membrane. In the present invention, a gas separation membrane is used for the selective permeation of carbon dioxide, thereby achieving precise sieving at the molecular level in the separation of a carbon dioxide-containing gas mixture. Simultaneously, a multi-channel ceramic hollow fiber membrane is used as a support for the gas separation membrane, which increases the packing density of the membrane and enables miniaturization of a carbon dioxide separation device. The present invention solves the problem of existing anesthesia-related ventilators that, in practical applications, the lack of monitoring of the end-tidal carbon dioxide concentration (Pi) leads to inaccuracies in the end-tidal concentration (Pi). ETCO2) and the inspiratory carbon dioxide concentration (FiCO2) or delayed exchange of the carbon dioxide absorbent, carbon dioxide2 rebreathing occurs in a patient, leading to carbon dioxide accumulation on the part of the patient.

The utility model discloses a portable mouse atomization anesthesia device, relates to mouse experiment technical field, including base and atomizer, base top fixed installation displacement structure, displacement structure top installation expansion bracket, expansion bracket top fixed connection rod, connection rod front end fixed installation frame, and the atomizer top fixed connection rod top fixed installation frame. The device is composed of the supporting frame and the atomizer, the overall structure is relatively small in size and convenient to disassemble and carry, the middle mounting frame of the supporting frame can clamp atomizers of different sizes through an elastic telescopic limiting structure, the height can be adjusted through the telescopic frame, and the device is suitable for different scenes and height requirements. The atomizer can atomize anesthetic, so that the mouse inhales the anesthetic through the mouth and the nose, intraperitoneal injection is not needed, anesthesia can be carried out while the experiment is carried out, the continuous and constant anesthesia level of the animal in the whole experiment process is ensured, and the animal can quickly wake up and freely move after the experiment is finished.

The invention belongs to the technical field of medical instruments, and particularly relates to an auxiliary anesthesia device for a clinical anesthesiology department, the auxiliary anesthesia device comprises a box body, a cannula fixing mechanism, a respiration assisting mechanism, a medicament treatment mechanism and a self-cleaning mechanism, the cannula fixing mechanism is arranged on the side wall of the box body, the respiration assisting mechanism is arranged on the side wall of the cannula fixing mechanism, and the medicament treatment mechanism is arranged on the side wall of the self-cleaning mechanism. The medicament treatment mechanism is arranged on the inner wall of the box body, and the self-cleaning mechanism is arranged in the box body. The flexible fixing mechanism can flexibly open the oral cavity of a patient, the trachea can be prevented from being bitten by teeth, and oral cavity damage caused by hard object padding is avoided; the breathing assisting mechanism can simulate mechanical breathing and assist in quickly checking the position and the function of the trachea; the mixing and heating mechanism can be used for homogenizing and treating anesthetic at constant temperature; the quantitative propelling mechanism can accurately control the anesthetic infusion dosage, and errors are reduced; the hard fixing mechanism can stabilize the trachea after the patient is anesthetized, and the safety and convenience of the surgical airway and anesthesia management are integrally improved.

The utility model provides a spray anesthesia device convenient to adjust, which comprises a medicine storage cylinder, scales are arranged on the outer side of the medicine storage cylinder, a medicine feeding pipe is arranged at one end of the medicine storage cylinder, a spray head is arranged at one end, deviating from the medicine storage cylinder, of the medicine feeding pipe, a meshing groove is arranged on the outer side of the medicine feeding pipe, and a piston is arranged in the medicine storage cylinder. A push rod is fixedly arranged at the end, deviating from the dosing pipe, of the piston, a push plate is fixedly arranged at the end, deviating from the piston, of the push rod, pull plates are symmetrically arranged at the end, deviating from the dosing pipe, of the medicine storage barrel, and an adjustable quantitative limiting mechanism is arranged on the outer side of the medicine storage barrel; according to the quantitative anesthetic spray dosing device, during dosing, when the set dosing amount is reached, the limiting rod limits the push plate to continue to move, quantitative anesthetic spray dosing is rapidly and accurately completed, shaking is not prone to being generated in the dosing pushing process, and discomfort of a patient is reduced.

The invention discloses a waste gas exhaust device for inhalation anesthesia, and relates to the technical field of anesthesia equipment. The head cushion is used for supporting the head of a patient, the transparent cover is arranged on the head cushion in a covering mode, a neck channel is reserved in the transparent cover, and the top of the transparent cover is communicated with a connecting port. The transparent cover and the headrest are matched to form a relative closed area, aiming at the mouth, the nose and the upper respiratory tract of a patient, waste anesthetic gas escaping from a gap of an air bag of a tracheal catheter can be effectively sucked, and the waste anesthetic gas is prevented from diffusing to a larger range of an operating room; the outer cover protrudes to be attached to the face of the patient, the range of the closed space is further reduced, the waste gas collecting effect is enhanced, a supporting plate and the transparent cover can rotate around a driving shaft by means of a second servo motor, a second worm, a second worm gear, the driving shaft, an L-shaped rod and the like, and the requirements of the patient for different operative positions such as supine and prostrate are met; and the limitation of a traditional device on body position adaptability is broken through.

This invention discloses a non-contact induction anesthesia device for mouse modeling, belonging to the field of veterinary instrument technology. The anesthesia device includes a cage with a wire mesh structure, inside which a movable partition divides the cage into a rearing area and an anesthesia area. A sealing plate is fixed to one side of the cage, with an opening on the sealing plate leading to an anesthesia chamber. The anesthesia chamber is equipped with a sealing gate and a push-pull compartment. The push-pull compartment has a support compartment and an end cap, the end cap of which can close the opening of the anesthesia chamber. The anesthesia chamber has an air inlet and an air outlet. In use, the operator pushes the partition outside the cage to drive the mouse into the anesthesia chamber, closes the sealing gate, and introduces anesthetic gas through the air inlet. After the mouse is anesthetized, the push-pull compartment is pulled out to remove the mouse. This invention avoids handling mice by hand, reducing stress and occupational exposure risks. Simultaneously, the sealing structure effectively controls the escape of anesthetic gas, improving the safety and efficiency of experimental operations.

The invention relates to the technical field of anesthesia devices, in particular to an anesthesia machine control system and method and an anesthesia machine, and the system comprises an acquisition conversion module, a ladder segmentation module, a stage correction module, an integral sorting module and a valve control generation module. According to the method, the continuous pressure sequence is constructed by collecting the compression electric signals of the breathing bag and is smoothed, synchronous difference and gradient recognition is carried out on pressure changes and gas flow changes, refined stage division and dynamic position correction are formed, the boundary of the ventilation stage is clear and stable, and the accuracy is high. The valve opening reference relation is established through stage pressure integration and section sorting, the collaboration between pressure fluctuation and flow fluctuation is strengthened, deviation caused by manual experience dependence is reduced, valve dynamic adjustment is more real-time and consistent, and the gas conveying stability degree and the pressure control reliability are improved.

This invention provides an upper respiratory tract surface anesthesia device, belonging to the technical field of anesthesia devices. Its features include an inlet pipe, a connecting pipe, and a spray nozzle. The lower end of the inlet pipe is connected to the connecting pipe via a flexible tube for connecting to an external drug or air supply line. An adjusting rod is slidably fitted on the outer side of the inlet pipe. The upper end of the inlet pipe has a conical tube, and a movable sleeve rod is movably fitted on the outer side of the conical tube. The spray nozzle is located at the upper end of the conical tube for spraying anesthetic liquid. The upper end of the conical tube has a sealing sleeve, and the inner side of the sealing sleeve has a support rod. The upper end of the adjusting rod has an ear plate, and the inner side of the ear plate is rotatably connected to a connecting rod that is rotatably connected to the movable sleeve rod. This allows the adjusting rod to adjust the angle of the support rod to cooperate with the sealing sleeve in sealing the airway. The advantages of this invention are: effective sealing of the target airway, prevention of drug leakage, significantly improved drug utilization and anesthetic effect, and convenient operation.

The utility model relates to the technical field of auxiliary devices of medical instruments, in particular to a multifunctional auxiliary anesthesia device for a clinical anesthesiology department, which can be quickly and stably supported by a worker and can reduce the working time of multiple locking operations, so that the convenience of the device is improved, and the practicability is enhanced. Comprising a device main body, and further comprises a base, four sets of moving wheels, a driving module, a rotating rod, four sets of connecting plates, four sets of connecting blocks, four sets of supports, four sets of bottom plates, a hinge assembly, an adjusting assembly, a limiting assembly and a control mechanism, the bottom of the device main body is connected with the top of the base, and the bottom of the base is evenly connected with the tops of the four sets of moving wheels; the top output end of the driving module penetrates through the bottom of the base to be connected with the bottom of a rotating rod, the top of the rotating rod is rotationally connected with the top of a working cavity of the base, and the outer side of the rotating rod is evenly connected with one ends of four connecting plates through adjusting assemblies.

Provided are a rat anesthesia device, which comprises a back plate connected with a bottom plate or a support plate, the back plate is at an inclined angle with the horizontal plane, and the back plate is used for placing a rat body; a metal wire is fixed on the back plate and is used for hanging rat incisors in use; and an anesthesia mask, a main body of the anesthesia mask is a hollow cylinder, one end of the main body is connected with a gas source, the other end is an inclined surface, a v-shaped groove is arranged on the opposite side of the main body at the inclined surface end, and the v-shaped groove is matched with the metal wire in use, so that the anesthesia mask can completely cover a rat head. Also provided is a construction method of an idiopathic pulmonary fibrosis combined with pulmonary arterial hypertension animal model, which comprises the following steps: taking 6-week-old SD male rats, and allowing the rats to freely take water and food; using a rat anesthesia device to anesthetize the rats, and injecting a bleomycin sulfate solution into the airway of the rats; allowing the rats to freely take water and food for 4 weeks, and obtaining an idiopathic pulmonary fibrosis combined with pulmonary arterial hypertension rat model.

The invention discloses a metering-adjustable dual-channel alternate injection type anesthesia device, and belongs to the field of injection, the metering-adjustable dual-channel alternate injection type anesthesia device comprises a base, clamping parts and an injection control part, the base is provided with two parallel slots, and the clamping parts are inserted into the slots. According to the device, double channels are adopted for injection, and the injection speed and the injection dosage of the two injection channels are controlled by the injection control component. The two injection channels can be independently controlled through the secondary push plate and do not influence and interfere with each other, independent drug administration is achieved, and the defect that a traditional double-channel injection device cannot independently control drugs is overcome. And meanwhile, synchronous administration of double channels can be realized through movement of the main push plate, so that synchronous errors of manual double-channel administration are eliminated, the synergistic consistency of double-channel medicines is improved, manual operation steps are reduced, and the anesthesia efficiency is improved.

Provided in the present application is an ultrasound-guided interventional surgery vehicle, comprising: a vehicle body, which has a compartment; a surgical table, which is arranged in the compartment; a surgical light, which is arranged in the compartment; an ultrasound device, which is arranged in the compartment and is used to provide ultrasound guidance; a monitoring device, which is mounted in the compartment and is used to monitor vital signs of a patient during the operation; an anesthesia device, which is arranged in the compartment and is used to keep the patient under anesthesia during the operation; and a fixing device, which is arranged on an inner wall of the compartment and is used to fix the ultrasound device, the monitoring device and the anesthesia device to the inner wall of the compartment during the traveling of the vehicle body. In the ultrasound-guided interventional surgery vehicle of the present application, the devices required for ultrasound-guided interventional surgery are integrated in the vehicle, thereby enabling the interventional surgery to be performed at any required location and ensuring the safety of the devices during the traveling of the vehicle.

The invention discloses a concentration-adjustable anesthesia device for the anesthesiology department, and belongs to the technical field of the anesthesiology department. The concentration-adjustable anesthesia device comprises a mixed containing barrel, and a concentration self-adjusting unit capable of conducting self-adjustment according to a concentration preset value is installed on the mixed containing barrel; the concentration self-adjusting unit comprises a buoyancy driving assembly which floats upwards according to the anesthesia concentration and a pre-adjusting assembly which can set the anesthesia concentration in advance. The concentration self-adjusting unit further comprises a liquid outlet amount adjusting driving assembly driven by a buoyancy driving assembly and a liquid outlet amount adjusting assembly used for adjusting the amount of the anesthetic stock solution flowing into the mixed containing barrel, the concentration change of the anesthetic mixed solution is sensed through a buoyancy ball, and buoyancy feedback is generated. The driving rack is meshed with the gear ring to drive the rotating ring to rotate, so that the self-adaptive adjustment of the opening degree of the liquid outlet is realized, the concentration stability can be maintained without manual intervention, and the anesthesia risk caused by concentration fluctuation is avoided.

The invention discloses an experimental animal anesthesia device which comprises a device base, a gas output system is arranged in the device base, and a plurality of gas storage tanks are arranged on the right side of the top end of the device base. According to the invention, the gas output system can be used for mixing and outputting gas in various gas storage tanks, the limitation that a traditional volatilization tank can only contain one kind of medicine is eliminated, different anesthetic medicines can be flexibly selected according to experimental requirements, and the output port is automatically opened through the opening and closing output assembly when the gas tank main body is inserted into the tank body placing groove; when medicine needs to be replaced or the tank body needs to be maintained, operation is easy and fast, the experiment efficiency is improved, flow detection can be conducted on gas output from the gas output pipeline to the collection output pipeline through the gas flow detection assembly, the instantaneous flow of anesthetic gas and oxygen can be accurately measured, and the experiment efficiency is improved. And the gas flow in the gas output pipeline can be adjusted and controlled in cooperation with a control system.

This invention provides a concentration-adjustable anesthesia device, belonging to the field of medical anesthesia technology. It includes a diluent channel, one end of which is connected to an external diluent storage component, and the other end of which is fixedly connected to a stirring tank. An anesthetic bottle is fixedly mounted on the diluent channel. A long rod is rotatably mounted inside the diluent channel, with an impeller fixedly mounted on its outer surface. The top of the long rod extends rotatably into the anesthetic bottle and is fixedly mounted on a turntable, the outer arc surface of which is sealed to the inner wall of the anesthetic bottle. Several leakage holes are formed on the turntable, arranged in a circular array around the central axis of the turntable. An adjusting component for sealing the leakage holes is located inside the turntable. A through-hole is formed at the bottom of the anesthetic bottle, and the through-hole is connected to the leakage holes. When the diluent passes through the diluent channel, it drives the impeller to rotate, causing the anesthetic to drip evenly and in equal amounts into the diluent, thus ensuring uniform mixing of the anesthetic and the diluent.

The utility model belongs to the technical field of medical anesthesia, and particularly relates to a micro-needle anesthesia device which comprises a shell, a medicine bag, a micro-needle, a medicine storage sponge and a pressing plate, an installation cavity is formed in the shell, a pressing hole is formed in a pressing face, the pressing hole and a through hole are oppositely arranged, the pressing plate penetrates through the pressing hole, the outer edge of the pressing plate is connected with the inner wall of the pressing hole, and the outer edge of the pressing plate is connected with the medicine storage sponge. When the pressing plate is pressed, the pressing plate can sink and deform towards the medicine storage sponge, when the medicine bag is extruded, anesthetic medicine can be input into the mounting cavity through the medicine inlet hole, the medicine storage sponge is located in the mounting cavity, the medicine storage sponge is provided with a medicine storage gap, and the medicine storage sponge can suck the anesthetic medicine in the mounting cavity into the medicine storage gap. The side, opposite to the through hole, of the medicine storage sponge makes contact with the pressing plate, the microneedle is connected with the medicine storage sponge, the microneedle is inserted into the through hole, the microneedle is provided with a medicine feeding channel, and the medicine feeding channel is communicated with the medicine storage gap. The anesthetic can be pushed into the subcutaneous tissue of a patient only by pressing the pressing plate without depending on a medicine conveying pump.

The invention discloses a concentration adjusting type anesthesia device, and relates to the technical field of medical instruments. The interior of the box body is divided into a mixing cavity and a driving cavity through a partition plate, an atomizer is fixedly arranged in the driving cavity, the upper side of the atomizer is communicated with the interior of the mixing cavity through a pipeline, an air guide pipe is connected to the output end of an atomization pipeline, and a suction type mask is arranged at the end of the air guide pipe; the two auxiliary liquid inlet mechanisms are respectively arranged in the two cavities; the alternate driving mechanism is arranged on the top surface of the liquid storage tank and is connected with the auxiliary liquid inlet mechanism; the mixing mechanism is arranged in the mixing cavity and the driving cavity; the continuity of the operation process is guaranteed, meanwhile, the feeding dosage is effectively guaranteed, and the phenomenon of excessive feeding or small feeding is prevented; the mixing mechanism drives the stirring shaft to move up and down, and meanwhile, the stirring blades can be rotated for stirring, so that the mixing is more uniform.

An anesthesia apparatus for anesthetizing a slaughtered animal prior to slaughtering wherein the anesthesia apparatus comprises a chamber for receiving the slaughtered animal, the chamber having an upper section, a lower section and a transition region separating the lower section from the upper section, and a first circulation system for circulating the chamber, each of the upper and lower sections is shaped and dimensioned to accommodate one or more slaughtered animals, the transition region allows the slaughtered animals to be transferred between the upper and lower sections, each section having a proximal end adjacent the transition region and a distal end opposite the proximal end, where the upper and lower sections are configured to be filled with a respective gas mixture, and a first circulation system for circulating a first one of the respective gas mixtures, the first gas mixture occupying a first one of the upper and lower sections, the second gas mixture occupying a second one of the upper and lower sections, the second gas mixture occupying a second one of the upper and lower sections, and the third gas mixture occupying a second one of the upper and lower sections, the first circulation system is configured to generate an airflow within the first section away from the transition region and toward a distal end of the first section.

The utility model discloses a bee anesthesia device which comprises an anesthesia box and an anesthesia gas supply device, the top of the anesthesia box is provided with a top side opening and a top side door which is used for opening and closing the top side opening and is at least partially transparent, the left side and the right side of the anesthesia box are respectively provided with a gas inlet and a gas outlet, and the anesthesia gas supply device is communicated with the gas inlet. A plurality of containing cavities are formed in the anesthesia box, extend in the front-back direction of the anesthesia box and are used for containing one bee cage, the containing cavities penetrate to the front side of the anesthesia box to form an in-out opening for the bee cages to enter and exit, and the anesthesia box is provided with an in-out door for opening and closing the in-out opening. The bee anesthesia device is favorable for preventing the interior of the anesthesia box from being polluted by the outside, is favorable for accelerating the anesthesia efficiency and is convenient for cleaning the interior of the anesthesia box.

The utility model provides a parallel operation type continuous anesthesia device for mass animal experiments, which relates to the technical field of animal experiment instruments and comprises a box body, at least two through holes are arranged at the front end of the box body, and the through holes are hermetically connected with guide parts through mounting grooves. A variable-diameter contact piece is arranged at one end of the guide piece and used for tightly wrapping the neck of the animal; a guiding cavity and a guiding rope are arranged in an opening in the middle of the flexible cover, and the opening can be tightened by pulling the guiding rope to achieve sealing. By means of the design of'head and body separation ', the head of an experimental animal continuously inhales anesthetic gas in the box body, and limbs are led out of the box body for operation. By means of the structure, synchronous anesthesia and parallel limb operation of a plurality of animals are achieved, experiment efficiency is remarkably improved, anesthesia gas leakage is effectively blocked, continuity and stability of the anesthesia process are guaranteed, and animal stress response and personnel occupational exposure risks are reduced.

The invention belongs to the technical field of medical instruments, and particularly discloses a multifunctional anesthesia device for the anesthesiology department, comprising: a mask covering the outer side of the mouth and nose of a patient; the number of the communicating pipes is two, the two communicating pipes are connected through a middle pipe, the bottoms of the two communicating pipes are communicated with the mask through an air pipe, and the two communicating pipes are used for introducing atomized anesthetic and oxygen into the mask; the number of the ventilation pipes is two, and the two ventilation pipes are in one-to-one correspondence with the two communicating pipes; the arc-shaped plate is rotationally inserted into the surface of the communicating pipe; the rotating part comprises a rotating rod which is rotatably inserted into the middle pipe; and the swing plate is mounted at the rear side end of the rotating rod. Through extrusion limitation of the screw and the bent groove, the sliding plate is conveniently limited in the side groove, the degree of blocking the breather pipe by the sliding plate can be adjusted according to the needs of a patient, the mixing proportion of atomized gas in the mask is conveniently adjusted, and the atomized gas anesthetizes patients of different body types.

This invention discloses a drug delivery anesthesia device, comprising a drug delivery tube, an oxygen tube, and a mask. The oxygen tube is directly and fixedly connected to a mixing tube. An inner tube is fixedly connected to the end of the mixing tube furthest from the oxygen tube, penetrating one side of the inner wall of the mixing tube. The end of the inner tube furthest from the oxygen tube is fixedly connected to the mask. The advantage is that when the detector detects a deep breath from the patient, it activates a push rod, causing the elastic rod to move to the right. The friction wheel and the conical roller abut at their larger diameter points. Since the motor speed is constant, the friction wheel's speed increases, thereby increasing the speed of the connecting disc, which in turn increases the speed of the embedded ring, further increasing the speed of the drive disc, and ultimately increasing the speed of the fan. This means that when the patient takes a deep breath, the fan speed increases, not only attracting the patient's attention but also encouraging deep breathing, thus accelerating the anesthesia process.

The embodiment of the invention provides an airway pressure control method. The airway pressure control method comprises the steps that first air source output end flow, first air source output end pressure and first patient end airway pressure are obtained; according to the first air source output end flow, the first air source output end pressure and the first patient end airway pressure, first air resistance estimation values of the air source output end and the patient end are calculated through an estimator; and the first air source output end pressure and an estimator are adjusted according to the first air source output end flow, the first air source output end pressure, the first patient end airway pressure and the first air resistance estimation value. According to the embodiment of the invention, the first air resistance estimation values of the air source output end and the patient end are estimated through the estimator according to the flow of the first air source output end, the pressure of the first air source output end and the airway pressure of the first patient end, and the pressure of the first air source output end and the estimator are adjusted according to the first air resistance estimation values for the next round of airway pressure control. And inaccurate airway pressure control caused by characteristic time variation of the filter and the hose during operation of the device is avoided.