26 results about "Anaesthesia machine" patented technology

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).

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.

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 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 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 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 provides an anaesthesia machine loop adapter for bronchoscopy, which relates to the technical field of anaesthesia machine loop adapters for bronchoscopy and comprises an adapter, a first rotating shaft is rotatably connected to the inner wall of the adapter, a second rotating shaft is movably sleeved on the outer surface of the first rotating shaft close to the top, and the second rotating shaft is movably sleeved on the outer surface of the first rotating shaft. A first gear is fixedly connected to the outer surface, close to the top end, of the second rotating shaft, a first connecting plate is rotationally connected to the outer surface, close to the bottom end, of the first gear, and a second connecting plate is fixedly connected to the top, close to the edge of one side, of the first connecting plate. According to the device, the first baffle is driven by the first rotating shaft, the second baffle is driven by the second rotating shaft, the second rotating shaft can be driven to rotate when the first rotating shaft rotates through mutual meshing of gears, the first rotating shaft can also rotate when the second rotating shaft rotates, and the two baffles can jointly block backflow gas.

The invention belongs to the technical field of medical instruments, and particularly relates to a modular serial port communication system and an anaesthesia machine, and the system comprises a receiving module which is used for receiving data from a plurality of serial ports and storing the data to different cache queues distributed to the serial ports; the protocol analysis module is used for analyzing the circularly acquired data in the different cache queues, acquiring a destination address, a source address, an instruction code, an instruction length, instruction content, an application mark and a checksum, and checking the destination address, the source address, the instruction code, the instruction length, the instruction content, the application mark and the checksum; the application mark comprises application, forwarding and sniffing; the protocol application module is used for respectively performing application, forwarding and sniffing processing according to the application mark; and the protocol sending module is used for storing the to-be-forwarded data to a sending cache queue and sending the to-be-forwarded data through a serial port. By adopting the system, the overhead caused by error analysis can be greatly saved, the debugging is convenient, and the workload of design and maintenance is reduced.

The utility model belongs to the technical field of medical equipment, and particularly relates to a switching device and an anaesthesia machine. The switching device comprises a base, a handle, an elastic piece, a piston rod and an air channel switching block, an eccentric cam is arranged at one end of the handle, and the eccentric cam is rotationally installed on the base; one end of the elastic piece is rotationally mounted on the base, the other end of the elastic piece is connected with the handle, and the rotation axis of the elastic piece and the rotation axis of the eccentric cam are located on a first plane; a piston cavity, an air inlet, a manual interface and a mechanical control interface are formed in the air passage switching block, the piston rod is movably mounted in the piston cavity in the length direction, and the end, extending out of the piston cavity, of the piston rod is connected with the eccentric cam; the handle can overcome the elastic force of the elastic piece to rotate between a manual position and a mechanical control position so as to drive the piston rod to move through the eccentric cam, and the manual position and the mechanical control position are located on the two sides of the first plane; at the mechanical control position, the piston rod blocks the manual interface; and at the manual position, the piston rod blocks the mechanical control interface.

The invention provides an electronic waste gas module and an anaesthesia machine. The electronic waste gas module comprises a gas inlet, a valve, a gas outlet and a negative pressure source which are sequentially connected. A positive pressure sensor is arranged on the air inlet and used for monitoring air pressure of the air inlet; a negative pressure sensor is arranged on the air outlet and used for monitoring the air pressure of the air outlet; a motor and a flow sensor are arranged on the valve, the motor is used for controlling the opening-closing degree of the valve, and the flow sensor is used for monitoring exhaust flow velocity; the electronic waste gas module further comprises a control main board which is used for being connected with an upper computer, receiving setting information and uploading internal monitoring information. The controller is connected with the positive pressure sensor, the negative pressure sensor, the flow sensor and the motor and used for monitoring exhaust pressure and wind speed, and when the exhaust pressure is abnormal, the exhaust pressure is adjusted by controlling the opening and closing degree of the valve. The device has the advantages that under the condition that the pressure of the front-end air inlet is too high, the exhaust flow speed is automatically increased, and ventilation of the anaesthesia machine is prevented from being affected by insufficient exhaust capacity; a limit switch is not used, so that the cost is reduced.

The invention belongs to the technical field of medical instruments, and discloses a multi-modal intraoperative bleeding amount real-time estimation method and system, the volume proportion of blood in a mixed solution is calculated through multi-band absorbance information, and the interference of irrigation solution dilution on blood loss amount evaluation is effectively solved; the blood amount in the suction bottle is calculated by combining the weight of the mixed liquid and the suction flow, so that the accuracy of liquid amount measurement is improved; the gauze is tracked and recognized through the surgical field video, the blood content is estimated, and automatic evaluation of the blood content of the gauze is achieved; finally, the Kalman filtering algorithm is used for fusing multi-source data, the accumulated blood loss amount and blood loss rate are dynamically calculated, the real-time performance and robustness of estimation are remarkably improved, and second-level blood loss rate information can be provided. In addition, according to the method, graded warning can be carried out according to the blood loss condition, a blood transfusion pump and an anaesthesia machine are controlled in a linkage mode, and auditable logs are recorded; therefore, the accuracy, the real-time performance, the intelligent level and the traceability of intraoperative blood loss volume evaluation are comprehensively improved.

The invention discloses a pressure release valve and an anaesthesia machine. The pressure release valve comprises a valve body assembly and a valve element assembly, the valve element assembly comprises a first valve element, a second valve element and a first elastic piece, and the first elastic piece, the first valve element and the second valve element all extend in the first direction; the first valve element is in transmission connection with the valve body assembly, the second valve element is movably connected to the first valve element in the first direction, the first elastic piece is connected between the first valve element and the second valve element, and the end, away from the first valve element, of the second valve element is suitable for abutting against a to-be-decompressed piece of a main body of the anaesthesia machine. The valve body assembly is operated to drive the first valve element to reciprocate in the first direction so as to adjust the compression amount of the first elastic piece, and then the pressure of the second valve element on the piece to be decompressed is adjusted. According to the pressure release valve, the valve element assembly is designed to be in the combination form of the first valve element, the second valve element and the first elastic piece, the overall structure is simplified, the disassembly and assembly operation of the pressure release valve is greatly facilitated, and the maintenance difficulty and cost are reduced.

The invention relates to the field of medical instruments, and discloses a breathing circuit flow sensor calibration gas circuit, system and calibration method.The breathing circuit flow sensor calibration gas circuit comprises a gas source module, and a flow monitoring module, a gas switching valve, a calibration branch, an inspiration branch, an expiration branch, a manual machine control development, a mechanical ventilation driving device and a waste gas purification system which are sequentially connected with the gas source module in series; the gas source module provides calibration gas, the flow monitoring module adjusts the calibration gas into standard flow gas, the standard flow gas is sequentially conveyed to the inspiration branch and the expiration branch to complete calibration of a breathing loop flow sensor, and the standard flow calibration gas is exhausted after being purified through the waste gas purification system. A flow sensor of an original flow monitoring module of an anaesthesia machine is used as a standard flow sensor, and an original flow adjusting device and an original gas on-off device of the flow monitoring module are used for adjusting calibration gas for guaranteeing flow, so that the flow sensor of a breathing loop is calibrated; a standard flow sensor does not need to be additionally arranged or an external standard flow sensor does not need to be connected.

The invention relates to the technical field of medical gas supply and treatment, in particular to an anaesthesia machine gas path system and an anaesthesia machine, and the system comprises a gas supply module, an evaporator, a breathing loop gas path module and a driving gas path module. The gas supply module is used for supplying carrier gas, the evaporator is connected with the gas supply module, and the evaporator is used for evaporating anesthetic and mixing the evaporated anesthetic with the carrier gas to form anesthetic gas. The breathing loop air path module comprises an air bellow, the air bellow comprises a driving air bellow and a controlled air bellow, the driving air bellow is connected with the controlled air bellow, and the driving air bellow is used for extruding and stretching the controlled air bellow. The controlled air box is connected with the evaporator, and the controlled air box is used for supplying the anesthetic gas in the evaporator to a user and absorbing waste gas exhaled by the user. The driving air path module is connected with the driving air bellow and used for driving the driving air bellow to expand and contract. The device has the effect of preventing anesthesia in the breathing circuit air path module from being polluted.

The invention relates to the technical field of medical equipment, in particular to an intelligent air supply anaesthesia machine based on physical form dynamic monitoring, which is characterized in that real-time information acquisition is carried out on a breathing bag in a breathing loop system through a sensor to obtain corresponding three-dimensional data information, and a corresponding three-dimensional model is constructed in a three-dimensional space; real-time calculation is carried out based on the model to output a dynamic filling degree and a breathing bag filling rate which represent the physical form of the breathing bag, and comparison is carried out based on the change condition of the dynamic filling degree and the breathing bag filling rate in combination with a preset threshold value corresponding to the working state of the intelligent air supply anaesthesia machine; therefore, the flow rate is adjusted or a safety intervention strategy is triggered to adjust the opening degree of the pressure release valve according to the change condition of the filling rate of the breathing bag based on the judgment result. According to the method, the state of the breathing bag can be more effectively judged, whether the breathing bag is overfilled or insufficient in filling rate is determined, then targeted adjustment is conducted, and therefore the air supply anesthesia effect is improved.

The utility model discloses an improved disposable anaesthesia machine and breathing machine breathing circuit, which comprises a Y-shaped tube body, the Y-shaped tube body is provided with a first interface and two branched second interfaces, the first interface and the second interfaces are respectively provided with a buckle clip, the buckle clip at the first interface is clamped between the first interface and a trachea cannula interface, and the buckle clip at the second interface is clamped between the first interface and the trachea cannula interface. The buckle clip at the second connector is clamped between the second connector and the anaesthesia machine or breathing machine connector, and the two forked sections of the Y-shaped tube body are respectively provided with a protective cover made of silica gel to protect the tube body. On the basis of an original breathing circuit, the protective cover made of silica gel is additionally arranged on the outer side of the tube body, so that the breathing circuit is protected from being punctured or cut by sharp objects; meanwhile, a first connector of the Y-shaped tube body is provided with a buckle clip, a tracheal catheter of a patient is provided with a buckle clip, the two buckle clips are connected with each other, a second connector of the Y-shaped tube body is provided with a buckle clip, an anaesthesia machine end or a breathing machine end is provided with a buckle clip, and the two buckle clips are connected with each other. Due to the arrangement of the buckle clamps, a tracheal catheter and a breathing circuit as well as an anaesthesia machine or a breathing machine and the breathing circuit can be clamped at the same time, and the breathing circuit is effectively prevented from falling off from the connector. The protective cover and the buckle clip in the breathing circuit can protect the breathing circuit and prevent the pipeline from falling off, and can be widely applied to scenes such as clinical anesthesia and trachea cannula in ICU (intensive care unit) where mechanical ventilation needs to be carried out on a patient.

The application discloses a heterogeneous data format automatic conversion and standardization processing method for monitors / anaesthetic machines, and relates to the technical field of medical data processing.The method comprises the following steps: S1, constructing a hierarchical surgery whole-process scene label system based on multi-center time sequence data and clinical value dynamic calibration correlation strength, combing the core clinical stages of surgery and setting exclusive scene labels, associating corresponding clinical operations, core monitoring parameters and data precision requirements for each label, and establishing a stage correlation mapping relationship between labels to support cross-stage dynamic flow; the core technology combination of the scene label system construction-real-time scene recognition-dynamic priority adjustment-unified standardization conversion solves the pain points of the insufficient adaptation of existing general conversion technology, and the hierarchical scene label system constructed by the application covers the induction period, maintenance period and recovery period of anesthesia, and can be associated with clinical operations, core parameters and precision requirements.

An anesthesia machine comprises a first fresh gas branch, a second fresh gas branch, a breathing circuit, a driving gas branch, a gas pressurizing device and an anesthetic conveying device, the first fresh gas branch and the second fresh gas branch are communicated with the anesthetic conveying device, the first fresh gas branch is used for providing oxygen and / or laughing gas, and the second fresh gas branch is used for providing oxygen and / or laughing gas. The first fresh gas branch is used for providing air, the second fresh gas branch is used for providing air, and the anesthetic conveying device is used for mixing anesthetic with gas provided by the first fresh gas branch and / or mixing anesthetic with air provided by the second fresh gas branch to obtain mixed gas and conveying the mixed gas into the breathing loop; the breathing circuit is used for receiving mixed gas output by the anesthetic conveying device; the driving gas branch is used for driving the mixed gas in the breathing circuit to be conveyed to a patient; the gas pressurizing device is used for pressurizing air entering the second fresh gas branch so that the second fresh gas branch can provide the pressurized air through the gas outlet.

The utility model relates to the technical field of medical auxiliary equipment, in particular to a support which is simple in structure, low in cost and high in universality, is used for adjusting the position of external equipment of an anaesthesia machine and is characterized by comprising a guide rail fixed on main equipment, a sliding rail module connected with the guide rail in a sliding mode and a hanging frame fixedly connected with the sliding rail module. The sliding rail module comprises a sliding rail support and a horizontal sliding assembly, the sliding rail support is installed on the guide rail in a sliding mode and can ascend and descend relative to the guide rail, the horizontal sliding assembly is installed on the sliding rail support and can move in the horizontal direction, and the hanging frame is fixedly connected with the horizontal sliding assembly and used for installing externally-hung equipment. The hanging frame can drive the external hanging equipment to move in the horizontal direction when being subjected to external tension or drive the external hanging equipment to ascend and descend along with the sliding rail support in the vertical direction when being subjected to external tension.

According to the anesthesia machine and the automatic gas adjusting method thereof, the current state of the anesthesia machine is obtained, and when the current state is the preset state or one of multiple preset states, the flow of the fresh gas is adjusted in the adjusting mode corresponding to the current state according to the corresponding relation between the preset state and the adjusting mode; the anesthetic concentration of the gas in the breathing loop is kept stable; wherein the preset state is the state influencing the anesthetic concentration of the gas in the breathing loop. That is, when the anesthetic concentration in the breathing loop can be influenced by the state of the anesthesia machine, corresponding measures can be automatically taken to maintain the stability of the anesthetic concentration of the gas in the breathing loop.

The utility model provides a soda lime tank clamping mechanism, a breathing circuit device and an anaesthesia machine. The soda lime tank clamping mechanism comprises a fixing frame, a top cover assembly, a lifting assembly and a soda lime tank. The fixing frame comprises a first fixing piece, a connecting piece and a second fixing piece, the first fixing piece and the second fixing piece are oppositely arranged at an interval, and the two ends of the connecting piece are connected with the first fixing piece and the second fixing piece respectively; the fixing frame is used for being fixed to a breathing circuit body. The top cover assembly is fixed to the first fixing piece and is provided with a sealing structure. The lifting assembly is arranged on the second fixing piece and is provided with a mounting position; the soda lime tank is arranged at the installation position and located between the top cover assembly and the lifting assembly. The soda lime tank clamping mechanism does not need to consider the influence of the machining precision of the main body parts of the anaesthesia machine, the limitation that the main body of the anaesthesia machine needs to be provided with a corresponding mounting and fixing structure is avoided, and the operability of upgrading and replacement of the soda lime tank clamping mechanism of the anaesthesia machine is improved.

The invention belongs to the technical field of medical anesthesia, and particularly relates to an electric control evaporator and a control method thereof and an anesthesia machine with the evaporator, the electric control evaporator comprises a medicine tank, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a liquid medicine pump and an evaporation core, one end of an internal pipeline of the evaporation core is an air inlet, and the other end of the internal pipeline of the evaporation core is an air outlet; a port B of the first electromagnetic valve is connected with a liquid medicine inlet of the evaporation core, a port C of the first electromagnetic valve is connected with a liquid medicine part of the medicine tank, and a port A of the first electromagnetic valve is connected with an outlet of the liquid medicine pump; an inlet of the second electromagnetic valve is connected with an air inlet of the evaporation core, and an outlet of the second electromagnetic valve is connected with the space above the liquid surface of the liquid medicine part of the medicine tank; a port A of the third electromagnetic valve is connected with a liquid inlet of the liquid medicine pump, a port C of the third electromagnetic valve is connected with a liquid medicine part of the medicine tank, and a port B of the third electromagnetic valve is connected with a space on the liquid surface of the liquid medicine part of the medicine tank. The anesthetic concentration can be accurately controlled and quickly responded, the structure is simple, and productization is easy.

The present application relates to the technical field of medical apparatus, in particular to a heating device for breathing gas probe and an anesthesia machine, comprising: a probe seat for accommodating the inhalation probe and / or exhalation probe; a heating film closely attached to the probe seat; a heating lining plate for fixing the probe seat and the heating film together; when the internal temperature is equal to or higher than a first threshold value, the heating film stops heating; when the internal temperature is equal to or lower than a second threshold value, the heating film starts heating, so as to ensure that the inhalation probe and / or exhalation probe in the probe seat work within a predetermined temperature range, avoid water vapor condensation, and further improve the monitoring and control of the tidal volume of the inhalation probe and / or exhalation probe.