Length-adjustable backflow early-warning oropharyngeal and nasopharyngeal airway

Abstract

The invention provides a length-adjustable backflow early-warning oropharyngeal and nasopharyngeal airway, and belongs to the field of medical apparatus and instruments. The length-adjustable backflowearly-warning oropharyngeal and nasopharyngeal airway comprises an inner sleeve, an outer sleeve, a pusher, a color developing system and an alarm system, wherein one end of the inner sleeve is arranged in the outer sleeve and can reciprocate along the inner side wall of the outer sleeve, the other end of the inner sleeve is connected with the pusher, the color developing system is arranged on the inner side wall of the inner sleeve and the inner side wall of the pusher, one end of the alarm system penetrates through the pusher and the inner sleeve and is arranged on the end surface of the end, away from the pusher, of the inner sleeve, and the other end of the alarm system is installed on the outer side wall of the pusher. The length of the airway can be adjusted so that the airway can adapt to different patients, meanwhile, whether gastric contents of the patients flow back or not can be monitored, and serious complications such as aspiration are effectively reduced.

Description

technical field [0001] The invention belongs to the field of medical equipment and supplies, in particular to an oropharyngeal and nasopharyngeal airway with adjustable length for early warning of reflux. Background technique [0002] After induction of general anesthesia with anesthesia, the patient’s breathing weakens to stop, and the anesthesiologist lifts the patient’s jaw to assist or control breathing until the patient’s muscles are relaxed and sedated, and the analgesic reaches its peak (several minutes), and then a safer airway is established (endotracheal tube, laryngeal mask, etc.). Although it only lasts for a few minutes, some patients, especially obese patients, still experience insufficient airway due to tongue drop, and then hypoxia or even suffocation. At this time, the patient can be placed with an oropharyngeal / nasopharyngeal airway to make the airway unobstructed , to better assist or control breathing, the oropharyngeal / nasopharyngeal airway is best plac...

AI Technical Summary

Problems solved by technology

Although it only lasts for a few minutes, some patients, especially obese patients, still experience insufficient airway due to tongue drop, and then hypoxia or even suffocation. At this time, the patient can be placed with an oropharyngeal / nasopharyngeal airway to make the airway unobstructed , to better assist or control breathing, the oropharyngeal / nasopharyngeal airway is best placed above the glottis, but due to the large individual differences in the length and angle of the oropharynx and nasopharyngeal passages in different patients, the airway size is not good Harmful, if the airway is too short, the tongue will be pushed towards the glottis, which will aggravate the patient's obstruction. Replacing the airway with an appropriate size will increase the patient's mechanical damage and waste precious time to correct hypoxia

At the same time, some patients will also experience gastric reflux. Once the gastric reflux enters the patient's airway, it will lead to serious consequences of aspiration.

The same situation will also occur in patients with general anesthesia to remove the endotracheal tube and outpatient painless endoscopic diagnosis and treatment. These patients are in a sedated sleep state, and the swallowing and cough reflexes are inhibited to varying degrees, and gastric content reflux may also occur. risk of sucking

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