A kind of respirator with expectoration functionThe invention belongs to technical field of medical instruments, relate to a kind of breathing with expectoration function.
Background technology
Respirator is widely used in clinical treatment, is that a kind of normal physiological that can replace, control or change the people is breathed, and increases pulmonary ventilation volume, improves respiratory function, alleviates work of breathing consumption, saves the device of heart reservation ability.
Breathe and support it is one of means of saving urgency, critical patient life most critical, thereby respirator has become indispensable apparatus in clinical treatment; Its positive Yu in first aid, anesthesia, ICU and respiratory therapy field comes Yu's extensive use.
Common respirator only has the function of replacement, control or change people's normal physiological breathing at present, the sputum of the interior pulmonary of patient body is cumulative in its work process, for the patient that can't cough, for fear of its pulmonary infection, usually adopt the method for injection of antibiotics, but the method may cause drug resistance and dysbacteriosis, waits side effect.
For this situation, the respirator of assisting patient to discharge lung sputum that has that the present invention proposes is discharged the interior sputum of patient body by the method for physics, avoids pulmonary infection, reduces antibiotic use, prolongs patient's life-span, has good promotion prospect.
Summary of the invention
The objective of the invention is: a kind of respirator with expectoration function is provided.
Technical scheme of the present invention is: breathing circuit and expectoration loop share one and breathe interface, the pipeline of connecting with the human lung is divided into two branch roads, a branch road series connection reversal valve A (2) connects with respirator controller (1), another branch road series connection reversal valve B (6) is connected with gas tank (5), the entrance of gas tank (5) is connected with vacuum pump (4), gas tank (5) Bonding pressure sensor (3).
When respirator is assisted patient respiration, reversal valve A (2) conducting breathing circuit, another reversal valve B (6) cuts off the expectoration loop; When respirator begins expectoration, reversal valve A (2) cuts off breathing circuit, respirator controller (1) gathers the data of pressure transducer (3), control vacuum pump output certain pressure, the step opening and closing of reversal valve B (6) are with the intermittently sucking-off of sputum of patient pulmonary.
Realized in auxiliary human body respiration, assisting patient to discharge the function of lung sputum.
Advantage of the present invention is: compare with traditional respirator meter, the present invention has increased the expectoration function, can effectively discharge the sputum in the patient body, avoids pulmonary infection, reduces antibiotic use, prolongs patient's life-span, has good promotion prospect.
Description of drawings
Fig. 1 is the structure diagram of respirator of the present invention.
1---the respirator controller; 2---reversal valve A; 3---pressure transducer;
4---vacuum pump; 5---gas tank; 6---reversal valve B;
The specific embodiment
Below the present invention is further illustrated.
When respirator is assisted patient respiration, reversal valve A (2) conducting breathing circuit, another reversal valve B (6) cuts off the expectoration loop; When respirator begins expectoration, reversal valve A (2) cuts off breathing circuit, respirator controller (1) gathers the data of pressure transducer (3), control vacuum pump output certain pressure, the step opening and closing of reversal valve B (6) are with the intermittently sucking-off of sputum of patient pulmonary.