Phlegm suction device of respirator bent tube for preventing respiratory tract injury

Abstract

The invention discloses a phlegm suction device of a respirator bent tube for preventing respiratory tract injury. The phlegm suction device comprises a phlegm suction tube, a negative pressure end ofthe phlegm suction tube is sleeved with a negative pressure buffer body, and the negative pressure buffer body is provided with negative pressure ports and buffer airbags at intervals in the circumferential direction, wherein at least one negative pressure port corresponds to phlegm suction holes in the phlegm suction tube. The phlegm suction device is provided with the negative pressure buffer body capable of protecting the respiratory mucosa, and the negative pressure buffer body truly protects the respiratory mucosa through the formed negative pressure ports and the buffer airbags.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a sputum suction device for a ventilator elbow to prevent respiratory damage. Background technique [0002] For patients with tracheal intubation or tracheotomy, the normal cough mechanism is destroyed and they cannot actively spit by themselves. Endotracheal suction can help patients remove various secretions from the respiratory tract. The commonly used sputum suction tubes in the prior art mostly use openings on the top of the front end, and the rear end is connected to the sputum suction machine through a three-way joint. The three-way joint is provided with a side hole and covered with a rubber plug; The rubber plug removes the negative pressure in the tube, in order to avoid damage to the mucous membrane of the inner wall of the patient's respiratory tract due to excessive negative pressure. [0003] At present, the use of the above-mentioned sputum suction tub...

AI Technical Summary

Problems solved by technology

[0003] At present, the use of the above-mentioned sputum suction tube for sputum suction in clinical practice has the following defects: (1) the top of the sputum suction tube is perforated, and when inserted into the patient's trachea, the end of the sputum suction tube can easily scratch the patient's trachea And during the suction process, once the end hole of the suction tube is blocked or close to the inner wall of the trachea, the negative pressure in the suction tube will increase (the internal pressure will decrease), which will cause the suction tube to further cling to the inner wall of the trachea, causing damage to the inner wall of the trachea; Some sputum suction tube products have a hole in the front side of the sputum suction tube. Since the center line of the hole is perpendicular to the axis of the sputum suction tube, it is still difficult to avoid the phenomenon of sticking to the wall of the sputum suction tube; (2) The insertion depth of the sputum suction tube is mostly determined by medical care The experience control of personnel, for nursing staff who are not rich in clinical experience, the insertion depth of the tube body is not easy to control during the sputum suction operation, causing damage to the patient's tracheal tube wall; (3) The sputum suction tube is connected to the sputum suction machine through a three-way joint The three-way joint is provided with a side hole for pressure relief, and the side hole of the three-way joint is closed by a rubber plug during suctioning. After the suction operation is completed, the rubber plug is opened to remove the negative pressure in the suction tube; If the hole of the suction tube is clogged and the suction tube clings to the inner wall of the trachea, etc., once this phenomenon occurs (that is, blood streaks are mixed in the sucked sputum), the medical staff need to immediately open the three-way side hole rubber plug. At this time, the negative pressure in the tube It is all removed, and the operation requires both hands of the medical staff, which is cumbersome and slow; therefore, in order to reduce the injury to the patient and relieve the pain of the patient, many medical staff uncover the rubber plug of the three-way side hole during the suction process, and directly Press the hole with your fingers to form a negative pressure in the tube. When the suction tube is close to the tracheal wall, immediately open the three-way pressure relief hole to balance the pressure inside and outside the tube, and repeat the pressing operation several times until the suction is over.

The disadvantage of this method is: when the medical staff loosen their fingers, the latex gloves of the medical staff are still absorbed under the negative pressure in the tube, which makes the pressure change inside and outside the tube slow, and even tears the latex gloves; The side hole of the joint is sprayed out. Due to the presence of a large number of germs in the sputum, it has a great impact on the health of medical staff, and the bacteria carried on the fingers (latex gloves) of medical staff will also infect patients.

Another disadvantage is that when the patient has a lot of sputum, if the medical staff does not suck the sputum in time, the ventilator will force the sputum into the lungs with air pressure, which will easily cause airway blockage, suffocation, infection and other risks

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