77 results about "Inhalation anesthesia" patented technology

A device and system for dispensing medical active ingredients. Medical active ingredients may be, e.g., drugs or anesthetics, which enter the patient's bloodstream. Injection pumps and perfusors are usually used for their dispensing, and vapors are frequently used in the case of inhalation anesthetics. The device permits the dispensing of a plurality of medical active ingredients, in which the rates of dispensing can be set precisely and changed with rapid action. This is accomplished by the series connection of a plurality of devices according to the present invention, which are designed as modules. Each module comprises a cartridge (6) as well as a delivery device (8) for delivering the particular medical active ingredient to be administered to a fluid interface (18), which leads to a supply line (16) designed either as an infusion line or as a respiration tube. The module has a coupling means (9, 10, 11, 12).

The present invention is a respiratory appliance (a face mask or a adaptor of a breathing circuit) with at least one toy, which is played by blowing. The respiratory appliance is used to connect to a breathing circuit and is suitable for pediatric inhalation induction of anesthesia. The respiratory appliance contains adjustable one way valves which control air flows for breathing in anesthetic agents and blowing the toy. Children can smoothly go to sleep when they play with the toy by blowing inside the mask.

An anesthesia equipment lift which couples to a table to provide an anesthesia equipment mount surface coupled to a lift element which travels from a first location to a second location to position mounted inhalation anesthesia equipment proximate to a patient located on the table surface to perform inhalation anesthesia.

The invention provides a method for managing experimental animal respiration, which utilizes a clinic anesthesia machine for the anesthetization of the animal experiment, performs tracheal cannula on an animal, adopts an animal temperate maintenance instrument to keep warm, and keeps the body temperature at the physical level (37 plus or minus 0.5 DEG C) all the time during the anesthesia process. The method is used for solving the animal respiration management problem during the traditional anesthesia process, the same inhalation anesthesia concentration and the stable body environment are also maintained during the whole anesthesia process. By the method, not only is the stress response of the experimental animal reduced, but also the vital sign stability of the experimental animal can be maintained during the inhalation anesthesia process of a long time (such as 4 hours), the mortality is low and the reviving can be stable, and the influences of trauma stress, hypoxia-ischemia, hypercapnia, acidosis and other interference factors on the experimental result can be eliminated. The method effectively controls the respiratory tract of the experimental animal, and also maintains the inhalation anesthesia of the volatile anesthetics with constant concentration, which is output to the animal.

The invention provides a tracheal intubation method for big and small mice. The method includes the following steps of preparing animals and instruments; putting a simple laryngoscope into an oral cavity of a big mouse or a small mouse to expose the glottis of the big mouse or the small mouse; inserting a tracheal catheter into the trachea of the big mouse or the small mouse under orthophoria; connecting the tail end of the tracheal catheter with a breathing machine for small animals and an anesthesia machine for the small animals, and continuing conducting inhalation anesthesia and mechanicalventilation. The tracheal intubation method for the big and small mice is wide in application range, high in success rate, applicable to molding of the big and small mice different in size, medicineapplication for tracheas, lung function detection and other occasions, and capable of avoiding the situation the the success rate of blind intubation is low, and damage is caused to the bodies of animals; the applied instruments are adaptive to the characters that the glottises of the big and small mice are narrow and the tracheas of the big and small mice are located at the deep portions of the oral cavities, pain caused by organic damage during intubation is reduced, and the stress reaction of the animals to the intubation is small; the operation is simple, and one person can complete all operation.

The invention discloses an anesthetizing device capable of performing anaesthetic concentration adjusting. The anesthetizing device capable of performing anaesthetic concentration adjusting comprisesa gas tank, a pair of sucking chambers, a piston chamber, a housing and an anesthetizing gas tank, wherein the piston chamber is arranged at the middle position of the inner part of the housing; the sucking chambers are symmetrically arranged on two sides of the piston chamber, in the housing; and first pistons each of which cooperates with the corresponding sucking chamber are arranged in the corresponding sucking chamber. According to the anesthetizing device capable of performing anesthesia concentration adjusting disclosed by the invention, communicating pipes are connected between the sucking chambers on two sides and a piston groove, and the volume of the piston groove is smaller than the sum of the volumes of the sucking chambers on two sides and is greater than the volume of a single sucking chamber, so that in the using process, the anesthetizing device disclosed by the invention can conveniently mix enough anaesthetics in one time to allow a patient to use; the moving of thefirst pistons is driven by the moving of a second piston, so that the sucking, the mixing and the extruding of inhalation anaesthetics and diluent air are realized simultaneously by motor driving, andthe situation that the anaesthetic concentration of the next time is influenced by air remained in the piston groove or the anaesthetics of different concentrations adjusted in the last time is avoided, the accuracy of anaesthetic concentration adjusting is promoted, the using is convenient, and the practical using effect is better.

The invention discloses an electronic evaporation device for inhalation anesthetics. The device comprises a liquid anesthetic storage unit, a differential pressure liquid level meter, an electromagnetic valve, a proportional valve, a flow sensor, a temperature sensor, a carrier gas and anesthetic gas path differential pressure sensor, an altitude sensor, an electric control anesthetic concentration adjusting disc and an electronic control system. After the technical scheme is adopted, the liquid level of a liquid anesthetic can be accurately monitored through an anesthetic gas evaporation tankby means of a differential pressure sensor, and errors caused by human eye observation are avoided; the flow of anesthetic gas is measured through the flow sensor, heat brought away by vaporization of the liquid anesthetic is estimated, data of the liquid level sensor is also used, the data is fed back to an electric control heating system, and the constancy of the temperature in the electronic evaporation device is further improved; through an altimeter, the altitude is obtained; a motor is utilized to drive the anesthetic concentration adjusting disc to correct the anesthetic gas concentration change caused by the altitude.

Disclosed is a vapor wand for administering inhalation anesthesia to wild animals. The wand has a fibrous wick that absorbs liquid anesthetic inserted by a syringe through a distal end cap and/or a leur fitting. Holes are spaced around the distal end of the wand so that movement of the air pump handle causes vaporized anesthetic to be dispensed through the holes.

A vaporizer includes a thermally conductive anesthetic container and a temperature sensor positioned in the container and in the liquid anesthetic. A breathing-gas delivery tube has a delivery end positioned in the liquid anesthetic at least about 5 mm beneath the top surface of the liquid anesthetic. A heater is positioned outside the container. Control circuitry is configured to receive signals from the temperature sensor and is connected to the heater in order to cause the heater to maintain the temperature of the anesthetic above a predetermined temperature. A method of vaporizing inhalation anesthetic is also provided.

The invention discloses an inhalation anesthesia machine for general anesthesia, and belongs to the technical field of medical instruments. The machine includes a host machine, an oxygen chamber, a first connector, a first air passage, a second carbon dioxide chamber, a second connector, a second air passage, a deployment chamber, an anesthesia chamber, an atomization chamber, a liquid tube, an inhalation air tube, a breathing mask, a CPU, a memory, a signal amplifier, a transformer and a display, when a tension sensor enters the CPU after passing through the signal amplifier, the CPU judges that a patient is in an inhalation state, an outlet valve is opened, the deployed air enters a human body through the inhalation air tube, when a tension sensor signal decreases, the CPU judges that the patient exhales, an inhalation pump works to draw an exhaled gas into a filter, and a one-way check valve controls the flow direction of the inhalation air tube and an exhalation air tube.

The invention belongs to the technical field of small animal anesthesia and relates to a simple economical small animal inhalation anesthesia machine which comprises a gas steel bottle, a gas adjusting valve, a three-way pipe I, a gas flow meter I, a gas flow meter II, an isoflurane gas volatilization bottle, a three-way pipe II, an adjustable three-way pipe, an anaesthetic mask, an animal body constant temperature system, an anesthesia induction box and a gas recycling bottle. The gas steel bottle is connected with the gas adjusting valve, the three-way pipe I, the gas flow meter I, the gas flow meter II, the isoflurane gas volatilization bottle, the three-way pipe II, the adjustable three-way pipe, the anaesthetic mask, the animal body constant temperature system, the anesthesia induction box and the gas recycling bottle in sequence. Using results show that the simple economical small animal inhalation anesthesia machine is simple and reasonable in structure, various parts are fixed and combined in a coordinating mode, small animals can be subjected to anesthesia control in short time or long time, accurate anesthesia depth is guaranteed, safety is good, after operation, the morbidity and the mortality of the small animals are low, and the operation success rate is high.

The invention discloses a headrest type suspended anesthesia device for an anesthesia department. The device comprises a base. The upper surface of the base is fixedly connected with a fixed plate. The upper surface of the fixed plate is fixedly connected with a headrest. An anesthetic supply device is fixedly connected with the upper surface of the base. The anesthetic supply device comprises a supporting plate. The bottom of the supporting plate is fixedly connected with the upper surface of the base. A disc-shaped casing body is fixedly connected with the right side, close to the top, of the supporting plate. A through hole is formed in the left side of the disc-shaped casing body, and a first shaft is limited and rotated through the through hole. A disc is fixedly connected with the right end of the first shaft. According to the invention, the above structures are used in cooperation; the problems that in the actual use process, due to the fact that a doctor needs to operate a traditional anesthetic inhalation device by himself/herself, the attention of the doctor is easily distracted, time and labor are wasted in operation, adaptive dosage is difficult to be conducted in cooperation with the respiratory rate of a patient, and inconvenience is brought to use are solved.

The invention relates to an inhalation anesthesia induction device for children. The device comprises a mask body, a nose hood and a VR glass device, wherein the nose hood is arranged at a position corresponding to the nose of a child patient on the mask body, the raised outer part of the nose hood is connected with a breath oxygen tube communicated with the nose hood, the VR glass device is installed at observation holes corresponding to eyes of the child patient on the mask body, and the breath oxygen tube is connected with an anesthesia machine body. The device is used for comforting, calming and inducing children before operation, the mask body is provided with the VR glass device that can play an animation video, so that the child patient can voluntarily inhale anesthesia gas while watching the animation video, and damage due to resistance emotion is reduced; and the device is convenient to use, is easy to operate, has high success rate, and can quickly anesthetize the child patient who does not cooperate due to cry and scream and fear.

The invention relates to a medical mask for anesthesia, in particular to a mask special for inhalation anesthesia. The mask special for inhalation anesthesia comprises a mask body, an inflatable curtain, an exhaust air system and a monitoring system. The mask body is composed of a mask shell, an air bag cushion, an air bag circle and an inlet air pipe. The inlet air pipe is connected with an anesthesia machine in a screwed pipe coupling mode. The screwed pipe coupling between the inlet air pipe and the anesthesia machine directly enables patients to intake oxygen and the anesthesia to make the patients in the state of narcosis. A small pipe is arranged in the in the middle of the front of the mask shell. The inside of the small pipe is connected with a threaded small pipe and a Y-shaped pipe. The outside end of the small pipe is connected with a sampling tube and a monitor to monitor the respiration conditions of the patients. The upper end of the inlet air pipe is provided with an umbellar-shaped curtain-top and a round curtain-mask to collect the exhaled air of the patients. The curtain-top is provided with an exhaust pipe. The exhaust pipe is used for clearing the the exhaust gas in the curtain-mask. The mask special for inhalation anesthesia has the advantages of being strong in practical utility, simple in operation, and capable of being used for inhalation anesthesia during a majority of short-time surgeries.

The invention discloses a painless automatic anesthesia device, which comprises a bed body, wherein a respirator is fixed to the bed body; the respirator communicates to a face mask by virtue of a pipeline; one end of a band is fixed to the bed body; the other end of the band is fixed to a controller; and the controller is fixed to the bed body. According to the painless automatic anesthesia device provided by the invention, when the body of a patient moves by a large amplitude, a rotating shaft, which is pulled by virtue of the band, is rotated at a high speed, a second conductive layer, when beaten by a rocker arm under centrifugal force, gets into contact with a first conductive layer, an electromagnet is powered by a power supply, and a retaining, which is adsorbed, is moved downwards, so that a anesthesia cavity is not blocked anymore, ad drugs in an anesthesia tank pass through a pipeline and the face mask and are inhaled by the patient; therefore, the patient is anesthetized; the anesthesia device, which adopts painless inhalation anesthesia, can reduce pain in the patient in comparison with a mode of injecting anesthesia drugs; and hydraulic oil between an outer layer pipe and an inner layer pipe seeps in the case that the pipeline, which is violently torn by the patient, becomes damaged, pressure on a piston is reduced, a left conductor block and a right conductor block communicate by virtue of the piston which is compressed by a second spring, and a buzzer is powered by the power supply, so that an alarming effect is achieved.

The invention relates to a preparation method of myocardial ischemia/reperfusion model in rats. The preparing method comprises the following steps in turn: I, anesthetizing, namely placing rats in an induction box, performing inhalation anesthesia by using 2 to 3 percent isoflurane, taking the rats out of the induction box, allowing the rats to continuously inhale isoflurane under a mask to maintain anesthesia; II, cutting off the chest skin and extruding the heart, disinfecting the chest skin, cutting off the chest skin, expanding the subcutaneous muscle to enter the chest, and directly extruding the heart out of the intercostals; III, ligating the left anterior descending coronary artery, ligating a starting end of the left anterior descending coronary artery by using a slipknot, sending the heart back to the chest after ligation, making one end of the ligating line positioned out of the chest, sewing and closing the chest; and IV, loosening the ligating line after ischemia is finished, directly loosening the ligating line exposed out of the chest, and restoring blood supply in the coronary. The invention is simple in operation, short in time consumption and relatively high in survival rate of the rats.

The invention relates to the technical field of medical devices, in particular to an inhalational anesthetic evaporation device. The device includes a first gas path, one end of the first gas path isprovided with an inlet, and the other end of the first gas path is provided with a mixed gas outlet; the first gas path is connected with a second gas path and a third gas path communicated with eachother; the connection portion of the second gas path and the first gas path is provided with a pressure monitoring diversion opening, and the other end of the second gas path is connected with a pressure monitoring unit; the connection portion of the third gas path and the first gas path is provided with a gas mixing hole; the pressure monitoring unit is connected with a seventh gas path through asixth gas path, one end of the seven gas path is communicated with an evaporation chamber unit, and the other end of the seven gas path is connected with an anesthetic gas control unit. The problemsare solved that the boiling point of desflurane is low, heat required by evaporation cannot be supplemented in time and added medicines are leaked, and meanwhile the evaporation control problem of clinical application of desflurane is solved.

The invention discloses a closed-loop inhalation anesthesia control system. The system comprises a ventilation device, a gas recovery device, a breathing circuit, gas delivery pipelines, an anesthetic vaporization device, an anesthesia depth monitoring device, an automatic anesthetic conveying device, a central control device, communication lines, a medicine conveying pipeline and an inhalation anesthetic, wherein the central control device is connected with the anesthesia depth monitoring device and the automatic anesthetic conveying device through the communication lines, the ventilation device, the anesthetic vaporization device and the gas recovery device are connected with the breathing circuit through the gas delivery pipelines, and the automatic anesthetic conveying device is connected with the anesthetic vaporization device through the medicine conveying pipeline. Automatic closed-loop administration of the inhalation anesthetic is realized; insufficient or excessive administration is avoided and the anesthesia safety is enhanced; the workload of an anesthetist is reduced and human errors are reduced.

The invention relates to a headrest type suspended anesthesia device, and the problem that the headrest in the prior art cannot achieve anesthesia on the back of the neck of a patient is effectively solved. The technical solution to the problem is that the device comprises a frame, the frame is slidingly connected with a neck bracket up and down, the inside of the neck bracket is slidingly connected with two neck supporting plates right and left, the two neck supporting plates can be joined together to form a plate flush with the neck bracket, and one end of the two neck supporting plates is fixedly connected with a neck bracket base that is slidingly connected to the frame; and the lower part of the neck bracket is provided with an anesthesia base that is slidingly connected to the frame,an anesthesia syringe is fixedly connected to the anesthesia base, one side of the anesthesia syringe communicates with an external anesthesia device, and the neck bracket, the neck bracket base andthe anesthesia base are electrically connected to the a control module that is fixedly connected to the frame, and are controlled by the control module. According to the present invention, the devicehas a simple structure, can effectively adapt to inhalation anesthesia and injection anesthesia, can assist anesthesiologist to quickly perform injection anesthesia, is convenient to operate and has high practicability.

The invention discloses an inhalation anesthesia exposure and monitoring device. The device comprises a transparent operation box; the transparent operation box is an organic glass transparent box ofwhich the two ends are provided with operation gloves, a tray is arranged in the transparent operation box, a lifting rack is fixedly connected to the lower end of the tray, and a vertical slide groove box sleeves the outer side of the lifting rack; a lead screw is arranged in the vertical slide groove box and penetrates through the lifting rack, a worm wheel fixedly sleeves the lead screw, and aworm is meshed with the worm wheel, extends to the outer side of the transparent operation box and is fixedly connected with an adjustment wheel. According to the device, by arranging a tray lifting mechanism, the position between the tray and a transparent cover is conveniently adjusted, a mouse does not need to be taken out from the anesthesia exposure environment, the accuracy of arterial bloodpressure measurement when the mouse is in an anesthesia exposure state is guaranteed, the monitoring effect is improved, and operation is conveniently and continuously conducted.

The invention relates to a liver acellular stent construction method based on an irreversible electroporation technology. The method comprises the following steps of 1.1) weighing a rat, carrying outgas inhalation anesthesia by using isoflurane, maintaining the gas inhalation anesthesia, after the anesthesia is effective, disinfecting abdominal skin of the SD rat in a supine position by using 75%alcohol, and opening the abdomen layer by layer to expose the liver; 1.2) clamping a left lateral lobe area of the rat liver by using a caliper type electrode, and performing high-voltage pulsed electric field treatment; 1.3) after the irreversible electroporation treatment is finished, performing transhepatic portal vein catheterization, perfusing with heparinized PBS (Phosphate Buffer Solution), cutting off the subhepatic inferior vena cava until the liver is full and the color is gradually lightened, gradually dissociating tissues and ligaments around the liver, taking down the liver, andimmersing the liver into the heparinized PBS; 1.4) putting the taken liver into a clean container, and performing one-way perfusion with deionized water, and 1.5) after the deionized water perfusion is finished, performing one-way perfusion with PBS for 30 minutes to complete the preparation of the stent. By the method disclosed by the invention, the construction efficiency of the in-vitro acellular stent can be effectively improved under the condition of not applying harmful chemical preparations.