6 results about "Respiratory simulator" patented technology

The invention discloses a method for measuring the delivery rate and the total delivery amount of nintedanib lipidosome, and relates to the technical field of detection of pharmaceutical preparations, and the method comprises the following steps: placing filter paper into a filter paper device, connecting an atomizer by using an adapter, and setting a respiration simulator as an adult mode; pouring the to-be-detected Nintedanib liquid medicine into an atomizer, starting the respiration simulator, working for 60 seconds, synchronously starting and stopping the compressor during the period, taking out the filter paper to obtain a first piece, replacing the filter paper with new filter paper, continuously atomizing until no smoke, and taking down to obtain a second piece; a test solution is obtained through treatment, the test solution and the reference solution are injected into a chromatograph, the result of the first test solution is the delivery rate, and the result of the second test solution is the total amount; according to the method for determining the delivery rate and the total delivery amount of the nintedanib liposome, atomized medicine can be accurately and effectively extracted, the recovery rate is high, the detection method is simple in mobile phase, convenient to operate and good in accuracy, the problem of accurate detection of main components in the delivery of the nintedanib liposome medicine is solved, and the accuracy of a detection result is improved.

The utility model discloses a kind of doll breathing simulators, comprising: shell unit, including first shell and second shell, first shell and second shell are enclosed to form containing space, first shell is provided with telescopic passage to outside;Simulation breathing unit, including power assembly and telescopic component, power assembly is set in containing space, telescopic component is slidably arranged in telescopic passage and can reciprocate along telescopic passage, for simulating breathing movement;Control unit, including controller, controller is electrically connected to power assembly, for controlling power assembly start or stop.Can enhance the bionic effect of doll, improve pacification ability.

The invention belongs to the technical field of medicine testing, and particularly relates to a testing device and method for inhaling a liquid preparation, and the testing device comprises a testing device atomizer which is used for atomizing the liquid preparation; the breathing simulator is used for simulating breathing and inhaling the atomized liquid preparation; the filtering and intercepting device is used for intercepting the atomized liquid preparation, a filter membrane is arranged in the filtering and intercepting device, one end of the filtering and intercepting device is communicated with an atomization outlet of the atomizer, and the other end of the filtering and intercepting device is communicated with an inlet of the respiration simulator; and the pumping device is used for extracting the liquid preparation in the filter membrane. According to the invention, the delivery rate and the total delivery amount of the inhaled liquid preparation can be accurately measured.

The invention relates to the field of respiration simulation, and discloses a respiration simulator which comprises a machine shell, a driving component, a respiration component and a connecting pipe arranged between the driving component and the respiration component are arranged in the machine shell, the respiration component comprises an outer shell, an inner shell located in the outer shell and a core shell located in the inner shell, and the outer shell is connected with the connecting pipe. An installation hole is formed in the outer surface of the inner shell, a flexible unit is arranged at the position of the installation hole, an inner support is arranged in the inner shell, the flexible unit comprises a guide rod arranged on the inner support in a sliding mode, an external step is arranged at one end of the guide rod, a connecting plate is arranged at the other end of the guide rod, and the guide rod is sleeved with a spring located between the external step and the inner support. The elastic force of the spring is used for driving the guide rod to move away from the mounting hole, the moving direction of the guide rod is parallel to the center line of the mounting hole, and a flexible flap is arranged between the hole wall of the mounting hole and the connecting plate, is made of a flexible material and is loosely arranged.

The utility model discloses a large animal respiration simulator, which belongs to the technical field of respiration simulators and comprises a mounting plate, a lung simulator, a reciprocating device and a connecting mechanism. The lung simulator is arranged at one end of the mounting plate; the reciprocating device comprises a fixing plate, a driving motor and a rotating cam, the fixing plate is vertically arranged at the end, away from the lung simulator, of the mounting plate, the driving motor is arranged on one side of the upper portion of the fixing plate, the rotating cam is arranged on the other side of the upper portion of the fixing plate and connected with the driving motor, and an air hole site is formed in the rotating cam. The air hole positions are arranged according to the amount of air pushed in by rotating the rotary cam push-pull part every time; one end of the connecting mechanism is connected with the air hole site, and the other end is connected with the lung simulator. The device is simple in structure and convenient to use, the amount of pushed air can be changed, various data can be recorded, the data accuracy can be checked, the operation is stable, and the data reliability is effectively improved.

The utility model provides a respiration simulation device for upper respiratory tract fine aerosol deposition research, which relates to the field of respiratory tract coal mine dust deposition research and comprises a standard respiration simulator and a branch pipe model generated by CT (computed tomography) scanning modeling. The branch pipe model comprises two air inlet ends and a plurality of air outlet ends, the air outlet ends are jointly connected and communicated through the filter, and the other end of the filter is connected and communicated with the standard respiration simulator. According to the respiration simulation device for upper respiratory tract fine aerosol deposition research, a branch pipe model is modeled through CT scanning, the branch pipe model comprises a main air pipe, the exhaust end of the main air pipe is connected with two second-stage branch air pipes, the second-stage branch air pipes are connected with third-stage branch air pipes with different lengths, and the second-stage branch air pipes and the third-stage branch air pipes are asymmetrically distributed relative to the main air pipe; through the arrangement, the respiratory tract can be effectively simulated, and dust accumulation at different parts can be effectively detected.