67 results about "Anaesthesia machine" patented technology

The invention belongs to the technical field of anaesthesia machines, and relates to an automatic target control method for the concentration of end-expiratory anesthetic gas of an anaesthesia machine and the anaesthesia machine. Calculating the deviation between the concentration of the end-expiratory anesthetic gas exhaled in the current respiratory cycle and a gas concentration set value; when the deviation and / or the change amount of the end-expiratory anesthetic gas concentration is larger than the threshold value, the flow of fresh gas used for flushing the anesthetic respiratory system is increased, and the anesthetic gas concentration of the fresh gas is adjusted till the deviation and the change amount of the end-expiratory anesthetic gas concentration are smaller than the threshold value; calculating predicted values of the concentration of the end-expiratory anesthetic gas in a plurality of future respiratory cycles; an anesthetic gas concentration optimization model is constructed and solved to obtain the optimal inhaled anesthetic gas concentration variation of each future respiratory cycle, so that the target flow of the fresh gas of each future respiratory cycle is calculated to control the conveying parameters of the fresh gas, and the final-expiratory anesthetic gas concentration is taken as an adjusting target to adjust the flow rate of the fresh gas. And the concentration of the end-expiratory anesthetic gas is effectively controlled through real-time feedback, dynamic prediction and adjustment.

The utility model relates to the technical field of water vapor filtration of an anaesthesia machine, in particular to a water vapor filtering device suitable for the anaesthesia machine, and solves the problems that the cooling time, the heat dissipation area and the cooling efficiency are influenced by a relatively short air flowing channel in the prior art, so that the filtering effect is relatively poor. A water vapor filtering device suitable for an anaesthesia machine comprises an upper tank body, an air inlet pipe is arranged on one side of the upper tank body, a separation sleeve is fixedly connected into the upper tank body, the top of the separation sleeve is communicated with an air outlet pipe, the air outlet pipe is communicated with the surface of the upper tank body, and a plurality of water absorption objects are fixedly connected into the air outlet pipe. The bottom of the upper tank body is in threaded connection with a lower tank body, the surfaces of the upper tank body and the lower tank body are fixedly connected with protruding rings, and a mounting mechanism is arranged between the two protruding rings. According to the utility model, the water vapor has longer cooling time and heat dissipation area, the cooling efficiency is improved, and a better dewatering and filtering effect can be ensured.

The invention relates to a mixing device (1) for a breathing or anaesthesia machine for mixing at least two breathing gas components, having a flow channel with at least two inlets (2, 3) for introducing the breathing gas components, 3) and a second flow channel section (5) with an outlet (7) for discharging a flow of breathing gas having a breathing gas component. The mixing device (1) is characterized in that the cross-section of the first flow channel section (4) decreases downstream at least in sections in the direction of the transition (6) from the first to the second flow channel section (4, 5), the first and second flow channel sections (4, 5) are inclined to each other, and the first flow channel section (4) opens into the second flow channel section (5) in the region of the transition (6) in such a way that the first flow channel section (4) opens into the second flow channel section (5). In this way, a vortex of the breathing gas flow around the longitudinal central axis (8) is formed at least partially in the second flow channel section (5), said vortex flowing helically in the direction of the outlet (7) at least in sections. The invention further relates to a breathing or anaesthesia machine having such a mixing device (1) and to a method for producing such a mixing device (1).

The invention relates to the technical field of medical instruments, in particular to a hand-operated machine-controlled switching valve device and an anaesthesia machine, and the hand-operated machine-controlled switching valve device comprises a valve seat (1) which is provided with a soda lime tank connector (16), an air outlet connector (2), a machine-controlled ventilation inlet (11), a hand-operated ventilation inlet (12) and a valve port (14); the valve rod (4) is arranged in the valve seat (1); the sealing gasket (10) is installed on the valve rod (4) and used for being in sealing fit with the first valve port side or the second valve port side of the valve port (14) when the valve rod (4) moves to the first position or the second position; and a driving source; under the action of a driving source, the valve rod (4) moves to a first position, so that the sealing gasket (10) closes the manual ventilation inlet (12) and opens the mechanical control ventilation inlet (11); and under the action of a driving source, the valve rod (4) returns to the second position from the first position, so that the sealing gasket (10) closes the mechanical control ventilation inlet (11) and opens the manual ventilation inlet (12), and automatic switching of ventilation channels is achieved.

An anaesthetic gas capture device housing two reusable canisters that safely capture volatile agents from the exhaust of an anaesthetic machine while maintaining a safe connection to a hospital AGSS and enabling the anaesthetic machine to continue to work in an active AGSS mode, without alteration, the device comprises or can be connected to suction means for drawing gas exhausted from a machine to the device, the suction means operates upstream of the capture canisters, the device is configured so that the suction means pushes gas through the canisters under positive pressure in series and agent extraction occurs under positive pressure, the device is pneumatically decoupled from the anaesthetic machine so that the device cannot apply vacuum pressure to the anaesthetic machine.

The invention provides an anaesthesia evaporator and an anaesthesia machine, and the anaesthesia evaporator comprises an evaporator disc which is driven by an external force to rotate around the center of the evaporator disc; the N anesthetic evaporation containers are fixed to the evaporator disc around the center of the evaporator disc, anesthetics stored in the anesthetic evaporation containers are different in type, and N is a natural number larger than or equal to 2; by rotating the evaporator disc, the anesthetic evaporation containers to be used are driven to rotate to the same designated position, and the anesthetic evaporation containers at the designated position face a patient; when the to-be-used anesthetic evaporation container rotates to a designated position, the to-be-used anesthetic evaporation container is powered on, and the idle state is switched into the using state; two openings are formed in a shell of the evaporator disc, and one opening is communicated with the anesthetic evaporation container in a use state and is connected to a respiratory system of a patient through a respiratory loop; and the other opening is communicated with the anesthetic evaporation container in an idle state, leads to the outside and is provided with a sealing cover for updating anesthetic.

The invention discloses an intelligent laboratory mouse tracheal intubation operation system and method based on mechanical arm linkage, and relates to the technical field of technical biomedices.The system comprises a respiratory anaesthesia machine, an anesthesia maintaining box and a mechanical arm, the anesthesia maintaining box is connected with the respiratory anaesthesia machine, and a mechanical arm moving track is arranged on the upper portion in the anesthesia maintaining box; a drawable laboratory mouse device plate for fixing a laboratory mouse is arranged in the anesthesia maintaining box; an operation port of the mechanical arm is provided with a tracheal catheter release device which is used for clamping a tracheal catheter to move to the deep layer in the laryngeal cavity after the oral cavity of the experimental mouse is pried open, and inserting a tracheal cannula into the trachea of the experimental mouse; an image acquisition module for acquiring in-vitro continuous images and in-oral continuous images in real time is arranged beside the tracheal catheter; an image processing module is arranged in the mechanical arm and used for analyzing continuous images in the oral cavity, recognizing and marking the trachea and calculating the time difference of opening and closing of a trachea pipeline window. On the basis of mechanical arm linkage, full-automatic implementation of the tracheal intubation operation in narrow and small lacuna is achieved.

The utility model provides a one-way valve and an anaesthesia machine thereof, and belongs to the technical field of medical instruments, the one-way valve and the anaesthesia machine comprise a connecting assembly, a first connecting seat and a second connecting seat, the first connecting seat is provided with a first channel, and the second connecting seat is provided with a second channel; the adjusting assembly is located at the joint of the first channel and the second channel and used for communicating or blocking the first channel and the second channel; wherein the adjusting assembly comprises a fixing seat, an adjusting part and an elastic piece, a first adjusting channel is formed in the fixing seat in a penetrating mode, the first adjusting channel is used for communicating the first channel with the second channel, the adjusting part is movably arranged in the first adjusting channel, and the elastic piece is connected between the adjusting part and the fixing seat; the adjusting part is used for opening or closing the first adjusting channel under the action of the first connecting base and the elastic piece. The one-way valve belongs to a mechanical trigger one-way valve, and is fast in trigger response and low in failure rate.

The invention provides an anaesthesia machine and a state recognition method for driving gas of the anaesthesia machine. The anaesthesia machine comprises a breathing loop used for being connected with a patient, a driving gas branch used for providing driving gas for a bellow-free gas driving branch, and the bellow-free gas driving branch with a bellow-free gas driver. The bellow-free gas driver is used for storing driving gas in the inspiration stage and storing gas of the breathing circuit in the expiration stage. The anaesthesia machine obtains the first gas amount flowing into the breathing circuit through the bellows-free gas driver in the inspiration stage and the second gas amount of gas entering the bellows-free gas driver in the breathing circuit in the expiration stage; and determining whether the state of the current driving gas is that the driving gas enters the breathing loop according to the first gas quantity and the second gas quantity. Therefore, a user can know the current state of the driving gas, and the risk that the anesthetic concentration of a breathing circuit is too low is reduced.

The invention relates to the technical field of intelligent medical treatment, in particular to an artificial intelligence respiratory system based on an anaesthesia machine, which comprises a data acquisition and processing module, a database establishment module, a stress analysis module and an intelligent analysis module, the data acquisition and processing module is mainly used for acquiring and preprocessing data; the database establishing module is used for establishing a historical database according to the ventilation parameters, the physiological parameters and the individual parameters; the stress analysis module is used for establishing a lung geometric model and generating a visual map of stress deformation of a lung injury area through finite element analysis; and the intelligent analysis module is used for performing model training by utilizing a machine learning algorithm and establishing a breathing parameter optimization model and a lung injury risk assessment model. According to the method, the physiological parameters and the breathing characteristics of the patient are individually integrated in real time in the operation, the dynamic multi-dimensional database is constructed, and the breathing parameters are automatically adjusted to balance the pressure and capacity distribution in the lung, so that the incidence rate of lung injury is reduced.

The utility model relates to the field of anaesthesia machines, and discloses an anaesthesia machine threaded tube for aerosol inhalation, the anaesthesia machine threaded tube comprises a connector and two fixing rings, the bottom end of the connector is communicated with an exhalation tube and an inhalation tube, the exhalation tube and the inhalation tube are symmetrically distributed with the connector as the axis, and fixing ropes are fixedly mounted at the bottom ends of the fixing rings. The surface of the fixing rope is rotationally connected with a plurality of supporting frames, the supporting frames are distributed in a circumferential array mode with the center of the fixing rope as the axis, and the tops of the two fixing rings and the bottom end of the connector are installed in a threaded mode; the fixing ring is mounted at the bottom end of the connector, the fixing rope is fixedly connected to the bottom end of the connector, the multiple supporting frames are rotatably mounted on the surface of the fixing rope, and the surfaces of the supporting frames are clamped to the inner walls of the exhalation pipe and the suction pipe, so that the inner walls of the exhalation pipe and the suction pipe are supported by means of the supporting frames; and the situation that the exhalation tube and the inhalation tube are extruded by external force to affect breathing of a patient is effectively prevented.

The invention relates to the technical field of medical instruments, in particular to an exhalation valve assembly for an anaesthesia machine and the anaesthesia machine. The exhalation valve assembly for the anesthesia machine comprises an exhalation valve shell (1), a driving gas device (5), an exhalation valve (7), a waste gas connecting pipe (12) and a plurality of driving gas connecting pipes (9 and 10), a driving gas pipeline (3) is arranged in the exhalation valve shell (1), and the exhalation valve shell (1) is provided with a second driving gas connector (6), a third driving gas connector (15), an exhalation valve mounting port (16), a waste gas pipeline connector (11), a loop connector (17) and other connectors. Therefore, the communication with an exhalation valve (7), a waste gas pipeline and an anaesthesia machine loop is realized. The exhalation valve (7) and the safety valve assembly (14) are integrated, connecting and sealing points are reduced, and the leakage risk is reduced. The exhalation valve assembly is compact in structure, uniform in connector, capable of supporting modular assembly and convenient to maintain. The device has the advantages of high integration, high sealing performance, low cost, high reliability and the like, and is suitable for modern anesthesia systems.

The invention discloses a headrest type suspended anesthesia device for the anesthesiology department, and relates to the technical field of medical instruments. Comprising a box body, a mounting strip is fixedly mounted at the rear end of the box body, a box door is slidably mounted at the front end of the box body, a mounting frame is slidably mounted on the inner wall of the box body, a partition plate is fixedly mounted on the inner wall of the mounting frame, an anaesthesia machine is mounted on the top of the partition plate, and a headrest assembly is arranged on the inner wall of the partition plate and comprises a fixing plate; the bottom of the adjusting plate is concavely provided with a T-shaped groove, the inner wall of the T-shaped groove is slidably sleeved with a T-shaped sliding block, the bottom of the T-shaped sliding block is fixedly provided with a pillow plate, the surface of the pillow plate is concavely provided with a headrest groove, the side end of the headrest groove is concavely provided with a groove, the inner wall of the groove is slidably sleeved with a baffle, the end of the baffle is fixedly provided with a sliding block, and the inner wall of the groove is concavely provided with a sliding groove. And the pillow plate can be stored in the box body after being used, so that the occupied area is effectively reduced, and meanwhile, the subsequent cleaning and disinfection of the operating room are also facilitated.

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 a tidal volume measuring system for an anaesthesia machine pipeline, and the tidal volume measuring system comprises a near-end detection assembly, a differential pressure sensor, a differential amplifier and a microprocessor, the near-end detection assembly comprises an external flow sensor, and the external flow sensor is arranged on a tracheal catheter; the external flow sensor is arranged in the tracheal catheter and used for converting gas flow energy in the tracheal catheter into the pressure difference between the pressure high end and the pressure low end of the external flow sensor, and the pressure difference sensor is used for converting the pressure difference between the pressure high end and the pressure low end into a pressure difference electric signal. And the microprocessor is used for obtaining the gas flow in the tracheal catheter according to the electric signal output by the differential amplifier. The external flow sensor is arranged in the tracheal catheter, the flow energy of the gas in the tracheal catheter is directly detected, the actual tidal volume of a patient can be reflected more truly, interference caused by the volume change of a pipeline is avoided, and therefore the measurement error is remarkably reduced, and the gas flow measurement accuracy is improved.

The present application relates to a kind of anaesthesia machine control system, the system specifically includes: acquisition module, information interaction module, information processing module, gas monitoring control module, backup power supply, power monitoring module and display screen;Power monitoring module is used to monitor the state of external power supply in real time, when external power supply appears exception, immediately switch to backup power supply, simultaneously, the power monitoring module also monitors the state of backup power supply in real time, controls backup power supply to charge according to need;Information processing module utilizes double model structure to carry out numerical information fusion, obtains anaesthetic gas control information.The present application also relates to a kind of anaesthesia machine control method and anaesthesia machine.Anesthesia machine using the system and method of the present application, not only can guarantee the accurate anaesthetic gas supply for individual control to user, simultaneously, can guarantee uninterrupted power supply, guarantees the smooth of anaesthesia processing and the safety of user.

An anaesthesia machine integrates the presence and state of charge of another medical device, such as a video laryngoscope, into operation. The anaesthesia machine communicates with the medical device to determine the presence and state of charge and present this information to a user as part of an examination procedure. A medical device mount is associated with the anesthesia machine to receive and charge the medical device. The medical device mount may include both a medical device charging mount and a battery charging mount that receives and charges a replacement battery. The medical device mount may communicate with the anesthesia machine to provide the charging and presence state of the medical device. During the examination procedure of the anaesthesia machine, presence and battery status information may be presented to the user, or the user may be prompted to manually enter this information into the anaesthesia machine.

The utility model provides a locking mechanism and an anaesthesia machine, the locking mechanism comprises a first locking assembly and a second locking assembly, the first locking assembly comprises a locking piece and a first sensor; the locking piece is provided with a first locking structure; in the locking state, the first locking structure can be locked with a second locking structure of the anaesthesia machine in a matched mode, the locking piece is located at the first sensing position, and the first sensor outputs a first sensing signal. In an unlocking state, the first locking structure can be separated from the second locking structure, the locking piece is located at a second sensing position, and the first sensor outputs a second sensing signal; the second locking assembly comprises an elastic interlocking assembly and a second sensor; the elastic interlocking assembly can move from an unlocking position to an interlocking position after being driven; in the interlocking position, the elastic interlocking assembly is located at a third sensing position, and the second sensor outputs a third sensing signal. By means of double locking of the locking mechanism, potential safety hazards caused by mistaken use of the evaporator can be avoided.

The invention discloses a precision detection method for a laughing air electronic control flowmeter in an anaesthesia machine. The method comprises the following steps: connecting a gas flow detection device with a flow control system; carrying out precision calibration on the gas flow detection device; oxygen enters through the oxygen inlet and is introduced into the atmosphere, air enters through the laughing gas inlet, the air inlet is closed, and a first flow value recorded by the gas flow detection device is obtained; laughing conversion coefficients at different preset flow values are calculated respectively; determining a verification conversion coefficient; oxygen with a fixed flow value enters through the oxygen inlet and flows through the gas flow detection device, air enters through the laughing gas inlet, the air inlet is closed, and a second flow value displayed by the laughing gas and air electric control flowmeter is obtained; determining a verification flow value range; if the third flow value displayed by the gas flow detection device is within the verification flow value range, it is determined that the precision of the laughing air electric control flowmeter meets the standard. Air can be used for replacing laughing gas for testing.

The invention relates to a bypass valve used in an anaesthesia machine loop. The bypass valve comprises a bypass valve body, a valve element, a main spring and a gland. The bypass valve body is in an annular groove shape, a first through hole is formed in the center of the bypass valve body in the axial direction in an extending mode, and a second through hole is further formed in the end face of the annular groove of the bypass valve body. The valve core is arranged in the first through hole; the gland is fixed at one end of the bypass valve body, a central through hole coaxial with the first through hole and another through hole aligned with the second through hole are formed in the gland, and the central through hole and the through hole are used for being communicated with corresponding vent holes in a loop main body of the anaesthesia machine respectively; a main spring is arranged between the valve element and the gland and used for elastically adjusting the distance between the valve element and the gland. The soda lime tank with the conventional volume can be adopted, when the soda lime tank is detached, a channel is formed in the bypass valve, an air path cannot be communicated with the external atmosphere, continuous ventilation can be achieved, operation is easy, and safety and reliability are achieved.

The invention discloses a protection device of a pushable anaesthesia machine, and relates to the technical field of medical instruments. The protection device of the push type anaesthesia machine comprises a base, an inner cavity used for containing an anaesthesia machine element is formed in the base, the protection device further comprises a limiting part arranged in the inner cavity, the limiting part is provided with a limiting face abutting against the anaesthesia machine element, and a cushioning assembly is further arranged between the limiting part and the cavity wall of the inner cavity. According to the protection device, the limiting surface on the protection device can abut against the anaesthesia machine element, so that the anaesthesia machine element is effectively prevented from displacing when the base is collided or impacted, and the position stability of the anaesthesia machine element is improved; and meanwhile, the cushioning assembly can be used for cushioning the anaesthesia machine elements, so that the anaesthesia machine elements are prevented from being damaged.

The invention relates to a split type breathing circuit structure for an anesthesia machine and the anesthesia machine with the split type breathing circuit structure. The split breathing circuit structure may include a circuit body including a circuit housing and a plurality of modules disposed inside the circuit housing, each module providing a portion of the breathing circuit; wherein the plurality of modules can be separated from one another; any two modules which are connected with each other and are in fluid communication are connected in a port sealing butt joint mode, and no fastener is used. According to the split type breathing circuit structure, the structural design of each module has a larger degree of freedom, an air channel can be formed in an optimized mode, and the air conveying performance of the breathing circuit structure is improved. In addition, the split type breathing circuit structure further has the advantages of being convenient to assemble, capable of achieving a larger integration level, easy to detect and judge the leakage position, better in disinfection effect and the like.

The invention relates to a breathing circuit structure of an anaesthesia machine and a method for calibrating a flow probe. The breathing loop structure comprises a water accumulation cup branch which is branched from an expiration flow path between the expiration flow probe and the expiration one-way valve, and a water accumulation cup is detachably connected to the tail end of the water accumulation cup branch. The calibration method comprises the following steps: connecting the connecting pipe between the expiration connector and the inspiration connector to form fluid communication between the expiration connector and the inspiration connector; the water accumulating cup branch is separated from the water accumulating cup, so that the water accumulating cup branch is communicated with the external atmosphere; working gas is injected through the fresh gas branch, sequentially passes through the inspiration one-way valve, the inspiration flow probe, the inspiration connector, the connecting pipe, the expiration connector and the expiration flow probe and finally flows out of the water accumulation cup branch. The flow of the working gas flowing out of the water accumulation cup branch and the output results of the inspiration flow probe and the expiration flow probe corresponding to the flow are detected, so that the inspiration flow probe and the expiration flow probe are calibrated.

The invention relates to the field of medical apparatus and instruments, in particular to a mold loop flip mechanism integrated with an electronic APL valve and an anesthesia machine. The mold loop flip mechanism integrated with the electronic APL valve comprises a loop flip shell, a rack (2), the electronic APL valve (6), a flip assembly (3) and a flip lock (12), wherein the rack (2) is arranged on a loop shell (25) of the anaesthesia machine; the loop flip shell is used for installing the electronic APL valve (6); the overturning assembly (3) is connected with the loop flip shell and the rack (2) and used for enabling the loop flip shell to drive the electronic APL valve (6) to overturn relative to the anaesthesia machine loop; and the flip lock (12) is used for locking the loop flip shell on a loop shell (25) of the anaesthesia machine when the loop flip shell is in a flip closed state. High-temperature disinfection of the electronic APL valve (6) along with a loop of the anaesthesia machine can be avoided, and the service life of the electronic APL valve (6) is prolonged.

The present application relates to the technical field of anesthetizing machine, and discloses a method for calibrating anesthetic gas flow. The method collects real-time monitoring data of gas flow at the output end of the anesthetizing machine, which comprehensively reflects the flow state of anesthetic gas by covering the flow fluctuation curve and the pressure change sequence. Subsequently, a dynamic calibration model matched with the physical parameters of the anesthetic gas delivery pipeline is established, and the collected flow fluctuation curve and pressure change sequence are input into the model for time domain alignment to adapt to different pipeline characteristics. According to the time domain alignment result, a coupling feature vector of flow rate and pressure is extracted, which contains key information such as flow rate gradient extreme points and pressure mutation time stamps, and is used to accurately capture the gas flow change characteristics. Based on the coupling feature vector, the initial flow calibration value at the output end of the anesthetizing machine is dynamically compensated, thereby generating the calibrated gas flow reference value.

The utility model relates to a patch type pulse oxygen probe structure which comprises a lead connected with an anaesthesia machine, a patch is arranged at one end of the lead, a circle of adhesive is arranged on the periphery of one side face of the patch, and a pulse oxygen probe element connected with the lead is arranged in the middle of the patch. The patch type pulse oxygen probe can be conveniently attached to the neck, the chest and the like to monitor the peripheral pulse oxygen saturation.

The utility model relates to the technical field of anesthesia, in particular to an inhalation type anesthesia device. Comprising an anaesthesia machine, an outlet of the anaesthesia machine is communicated with an inlet pipe of a respirator through a communicating assembly, the connecting assembly comprises a connecting pipe, one end of the connecting pipe is fixedly communicated with the outlet of the anaesthesia machine, the other end of the connecting pipe is fixedly communicated with a parent part, and a child part is detachably, fixedly and hermetically connected to the parent part and fixedly communicated with the inlet pipe. According to the device, the taper sleeves matched with the guide parts on the buckles are arranged, so that the taper sleeves move towards the buckles, the multiple buckles deform at the same time through matching of the taper sleeves and the guide parts of the buckles, separation of the child part and the mother part can be facilitated, and the respirator is convenient to disassemble.

The utility model relates to the technical field of anaesthesia machines, and provides an anaesthesia machine which comprises an anaesthesia machine body, an air supply pipe is arranged on one side of the anaesthesia machine body, an overturning medicine adding assembly is arranged on one side of the anaesthesia machine body, and an overturning locking assembly is arranged on the anaesthesia machine body. The overturning medicine adding assembly comprises an embedded groove, the embedded groove is formed in the side wall of the anesthesia machine body, a receding groove is formed in the inner side surface of the embedded groove, an overturning groove is formed in the bottom of the embedded groove, a swing frame is connected to the interior of the overturning groove through a pin shaft, a medicine adding cover is connected to the interior of the swing frame through a pin shaft, and a medicine adding pipe is arranged at the bottom of the medicine adding cover. By means of the technical scheme, the problems that in the prior art, when an anesthesia machine is used, medicine needs to be added into the anesthesia machine, in order to prevent liquid leakage, a cover body needs to be used for assisting gathering in the medicine adding process of the anesthesia machine, a common cover body container for medicine adding of the anesthesia machine is lost, and storage is troublesome are solved.

The utility model discloses an ultrasonic irradiation system for irregular parts of a mouse, and particularly relates to the technical field of experimental equipment. The ultrasonic irradiation system for the irregular part of the mouse comprises an anaesthesia machine, ultrasonic equipment and a fixing plate, a mask and an ultrasonic output positioning support are arranged on the fixing plate, the mask is connected with the anaesthesia machine through a pipeline, when the ultrasonic irradiation system is used, the mask covers the head of the mouse so that the mouse can be kept in an anesthetic state, and the ultrasonic output positioning support comprises a base. The base is nailed on the fixing plate through a plurality of nails, a stand column is fixedly arranged on the edge, close to one side, of the top of the base, the stand column is movably sleeved with a sleeve, a fixing assembly is arranged on one side of the sleeve, and the sleeve can be fixed to the stand column through the fixing assembly. The mouse irregular part ultrasonic irradiation system provided by the utility model can effectively help animal experiment research of related ultrasonic effects, thereby providing a powerful tool for fundamental research of ultrasonic treatment.

The invention relates to an oxygen concentration sensor mounting structure for an anaesthesia machine. The oxygen concentration sensor mounting structure is used for measuring oxygen concentration in inspiration of a patient. The mounting structure includes: a chamber; the push rod is provided with a rod part and a plugging part; the mounting seat is arranged on the first side wall of the cavity, is provided with a long guide hole and is used for receiving and guiding the rod part of the push rod to reciprocate; the sensor interface is arranged at the second side wall of the chamber and comprises a mounting through hole facing the first end part, the second end part and used for receiving an oxygen concentration sensor; and a biasing spring for applying a biasing force toward the sensor interface to the push rod. And under the condition that the oxygen concentration sensor is not installed, the push rod is pushed to the sensor interface by the bias force of the bias spring, so that the plugging part of the push rod is propped against the first end part of the sensor interface to close the installation through hole. Under the condition that the oxygen concentration sensor is mounted, the detection end part of the oxygen concentration sensor extends into the cavity through the mounting through hole, and the plugging part of the push rod is pushed to the first end part of the sensor interface.