A sputum suction machine with simulated breathing function
A technology of sputum suction machine and ventilator, which is applied in the direction of respirator, suction device, etc., can solve the problems of patients' lung injury, and achieve the effect of avoiding influence and good promotion prospect
Inactive Publication Date: 2016-02-10
BEIHANG UNIV
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Problems solved by technology
[0003] At present, when the existing sputum suction machine is working, it is necessary to cut off the patient's mechanical ventilation circuit, because the ventilator cannot suck air from the patient's lungs, which will cause the ventilator to alarm, and the next time the patient's lungs are inflated, the air will be filled. A larger flow of air, which again causes the ventilator to alarm and cause lung damage to the patient
Method used
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[0014] The present invention will be further described below.
[0015] The controller (2) controls the working states of the positive pressure air source (11) and the negative pressure air source (5) according to the dynamic characteristics of the patient's mechanical ventilation detected by the pressure sensor i (8) and the pressure sensor ii (10), simulating The dynamic characteristics of breathing in a patient on mechanical ventilation. During the suction process, the ventilator (4) is respectively connected to the positive pressure air source (11) and the negative pressure air source (5) at different times, the positive pressure air source (11), the negative pressure air source (5) Simulate the patient's breathing characteristics, so as to ensure that the working characteristics of the ventilator (4) at the time of suctioning are consistent with the characteristics before suctioning, so as to ensure that the working state of the ventilator (4) changes due to cutting off th...
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The invention belongs to the technical field of medical instruments, and achieves a sputum suction device with a breath simulating function. The content mainly relates to the method that through simulating of breath of a patient, influence on work of a breathing machine in the working process of the sputum suction device is avoided. The sputum suction device is different from a traditional sputum suction device, the sputum suction device and the breathing machine are connected to a breathing circuit of the patient in parallel, through the self learning function of the sputum suction device, the mechanical ventilation characteristic of the patient is learned, and through simulating of a breath process of the patient, the influence on the breathing machine due to the cutting off of mechanical ventilation circuit is avoided in a sputum suction process of the sputum suction device. The sputum suction devices simulates the breath process of the patient, the influence on the breathing machine due to the cutting-off of mechanical ventilation circuit is avoided in the sputum suction process, influence on mechanical ventilation by the patient after the sputum suction is reduced, and therefore the sputum suction device has excellent popularizing prospects.
Description
technical field [0001] The invention belongs to the technical field of medical devices, and relates to a sputum suction machine with the function of simulating breathing. Background technique [0002] The sputum suction machine effectively clears the secretions in the airway through the mouth, nasal cavity and artificial airway according to the principle of negative pressure, keeps the airway unobstructed, improves alveolar ventilation and ventilation function, and is widely used in the nursing of airway management of mechanically ventilated patients. [0003] At present, when the existing sputum suction machine is working, it is necessary to cut off the patient's mechanical ventilation circuit, because the ventilator cannot suck air from the patient's lungs, which will cause the ventilator to alarm, and the next time the patient's lungs are inflated, the air will be filled. A larger flow of air, which again causes the ventilator to alarm, and causes the patient's lung damag...
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IPC IPC(8): A61M1/00A61M16/00
Inventor 石岩蔡茂林许未晴
Owner BEIHANG UNIV