12 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.

A respiratory simulator including a rigid porous foam is disclosed, the rigid porous foam including (i) macropores, and (ii) an interconnected open cell network of micropores and / or nanopores.

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 present invention discloses an experimental device and method for testing the effectiveness of an individual dust-proof respirator, which relates to the technical field of pneumoconiosis prevention and treatment. The experimental device includes two animal experimental chambers, a connecting pipe, and a humanoid breathing simulator; the two animal experimental chambers are respectively a first experimental chamber and a second experimental chamber, and a dust-generating system is arranged in the first experimental chamber; an individual dust-proof respirator filter material is arranged in the connecting pipe, which is used to filter the dust-containing airflow flowing through the connecting pipe. The present invention can more accurately and intuitively display the impact of dust on the lung health of mice and the dust-proof effect of the individual dust-proof respirator. The experimental results are presented by comparing the anatomy and pathological sections of the lungs of mice, which has a strong visual impact on people and has a greater warning effect; at the same time, in the experimental process, based on the fact that human breathing is more similar to a sine wave circulation flow, the humanoid breathing simulator technology is used to accurately simulate the breathing of workers during operation, and the experimental results are more accurate.

Methods, apparatus, and systems for testing breathing rates using an anthropomorphic breathing simulator. In some embodiments, an anthropomorphic breathing simulator may comprise a mechanical breathing assembly positioned within an anthropomorphic body. The mechanical breathing assembly may comprise one or more breathing plates coupled with a rotatable cam plate. Each of the breathing plates may in some cases be coupled with the cam plate by way of a series of curved slots formed in the cam plate such that, upon rotation of the cam plate in one direction, the breathing plates move in a corresponding direction to simulate a first phase of a breathing cycle and, upon rotation of the cam plate in the opposite direction, the breathing plates move in another direction to simulate a second phase of the breathing cycle.

The invention relates to the technical field of medical equipment, and discloses a breathing depth and frequency simulation device and method for a thoracico-abdominal breathing bandage of a polysleep monitor, and the device comprises a standard simulation person which simulates the sleep posture of a human body and the fluctuation change of the chest in the breathing process; the active respiration simulator is connected with the inflatable lung, comprises a control device, an air pump assembly and a feedback control unit, and is used for setting respiration frequency, amplitude and mode through the control device, generating mechanical ventilation pressure to drive expansion and contraction of the inflatable lung and simulating chest movement in deep and shallow sleep, irregular respiration and apnea states; and the breathing displacement waveform monitoring module comprises a sensing circuit, a signal conversion unit and a data processing unit and is used for monitoring the displacement change of the chest of the standard simulation human, converting a capacitance signal into a voltage signal and calculating the breathing depth, frequency and mode through the data processing unit. According to the invention, the sleep posture of the human body is simulated, and the fluctuation change of the chest in the sleep breathing process of the human body is simulated.

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.

A breathing simulator for simulating the dynamic breathing patterns is disclosed. The breathing simulator may include: a gas holding chamber capable of expanding and contracting having a movable portion for expanding and contracting the gas holding chamber; a motion imparting mechanism operatively connected to movable portion of the gas holding chamber; a motion control device for controlling the expansion and contraction of the gas holding chamber; and a motion controller in communication with the motion control device. The motion controller includes software thereon, wherein the software contains an algorithm that express the motion of the movable portion of the gas holding chamber in terms of the equations for a circle in a Cartesian coordinate system, wherein the algorithm provides a mathematically-based breathing profile that is executed by the motion control device.

A respiratory simulator is provided, including a rigid porous foam, the rigid porous foam including an interconnected open-celled network of: (i) macropores, and (ii) micropores and / or nanopores. A method for determining an effect of a test atmosphere on a simulated distal airway and alveoli of a respiratory tract is also provided. A rigid porous foam for a model of a distal airway and alveoli of a respiratory tract including an interconnected open-celled network is also provided.

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.