Foldable laryngeal mask structure

Abstract

The embodiment of the invention discloses a foldable laryngeal mask structure, and can be placed in the throat of the patient to enable the respiratory tract to be unimpeded. The foldable laryngeal mask structure comprises a supporting piece, a telescopic sleeve body, and a one-way pipe, wherein an opening part is formed in one side of the supporting piece, and a backrest part is arranged on the other side of the supporting piece; one side of the backrest part extends outwards to form a pipe body; a groove part is formed in the periphery of the opening part; the pipe body and the opening partcan be in mutual communication; the telescopic sleeve body is provided with a first sleeve part, a second sleeve part which is connected with the first sleeve part and an opening binding part; the edge of the first sleeve part can be fixedly arranged in the groove part; an inflating like bag which can be arranged on one side of the backrest part is formed between the first sleeve part and the second sleeve part in a backward folding manner; the opening binding part is fixed between the supporting piece and the pipe body in a sleeving manner; the telescopic sleeve body has high ductibility, high stickiness and high tension for expanding during inflation; one end of the one-way pipe is arranged on the inflating like bag, and the other end of the one-way pipe is arranged on one side of the pipe body; and gas can be injected from one end of the one-way pipe in the single direction to enable the inflating like bag to expand.

Description

technical field [0001] The invention relates to a laryngeal mask airway, in particular to a foldable laryngeal mask structure, which can be used for users to generate slight inflation under positive pressure breathing conditions to prevent air leakage. Background technique [0002] Whether it is in basic first aid resuscitation or advanced cardiopulmonary first aid, there is no doubt that the smoothness of the airway and the ventilation of the lungs are very important. It is actually a very difficult technique. However, once After successful implementation, its first aid effect is also the most significant, and relatively, it is the most helpful to patients. In addition to the way of tracheal intubation, the current emergency respiratory treatment and lung ventilation methods are as follows: 1. mouth-to-mouth or mouth-to-mask artificial respiration; 2. positive pressure ventilation with a mask containing an air storage bag, Supplemented by artificial oropharynx or nasopha...

AI Technical Summary

Problems solved by technology

[0007] First, the teaching of the general use of the inflatable laryngeal mask currently on the market is to place it in the patient's throat so that the inflation pressure should be maintained at 60cm-H2O. Use inflation pressure to prop up the side walls of the collapsed cuff 3 to have the function of sealing the airway and avoiding air leakage. However, in order to avoid air leakage during the operation, it is often necessary to pressurize and expand the side walls. When the inflation pressure is as high as When the pressure is 60~120cm- H2O, the laryngeal mucous membrane is compressed by the over-inflated pressure. Over time, the mucous membrane of the larynx will fester, and even cause ischemic damage to the mucous membrane. Once the pressure on the side wall of the larynx exceeds 25 cm- H2O will affect the submucosal blood flow, which will easily cause throat pain after the patient wakes up. Therefore, it is known that the laryngeal mask cannot be placed for a long time, and it must be taken care of during the return of the pressure. Whether there is air leakage, not ideal

[0008] For the other two, the size of the laryngeal mask for conventional use must be selected according to the patient's weight, mainly because the material design of the mask bag 3 cannot provide a large space for expansion and contraction, and the expansion range is small, so a single-sized laryngeal mask cannot satisfy most patients. If the size of the laryngeal mask is used on an unsuitable patient, it will affect the success rate of insertion, and forced insertion will be accompanied by the risk of air leakage. Therefore, it is necessary to prepare various sizes to prevent various emergencies

[0009] For the third, due to the poor elastic coefficient of the mask body of the conventional laryngeal mask, even if a higher air pressure is introduced, it cannot produce a large amount of deformation. Therefore, it is necessary to choose a laryngeal mask that matches the patient's throat size. The space at the laryngeal mask is larger than the throat opening. During the placement process, the operator must pass the front end of the laryngeal mask through the throat opening, and must first overcome the psychological pressure to avoid harming the patient. Generally, medical institutions operate the laryngeal mask as a way to unblock the airway, and usually require anesthesia In addition, it will also reduce the contact area between the cuff and the inner wall of the patient's throat, and it is also prone to displacement during the setting process, thereby increasing the risk of air leakage. In addition, the poor elastic coefficient is also accompanied by The softness is not good, and more skills need to be trained during the setting process, which prolongs the familiarization time of trainers

[0010] Fourth, because the overall shape of the general laryngeal mask is relatively fixed, the catheter cannot be turned moderately. When installing, it must be turned skillfully to avoid the epiglottis. The artificial skill method naturally comes with the risk of installation proficiency, and it is easy to insert it forcibly. Injury to the patient's throat will affect the subsequent recovery. Therefore, the operator must be given sufficient training time in advance to avoid improper installation during the operation. This is also an important key to the patient's subsequent recovery.

[0011] Fifth, it is known that a mouthpiece is often added to the laryngeal mask during use to prevent the patient from biting the inflatable tube 4 due to physiological reactions and affecting the intake flow of oxygen. The known mouthpiece is mainly divided into two types, one It is an external mouthpiece, which is generally installed close to at least one of the left and right sides of the inflatable tube 4, and the side corners of the patient's mouth will be bitten first without pressing the mouthpiece. to the inflatable tube 4, but the mouthpiece is placed on the side corner of the mouth for a long time in this way, because it is placed on one side, it is easy to rub against the side corner of the mouth of the patient with fragile skin, causing discomfort such as broken skin and bleeding; The other is a fixed mouthpiece, which is generally directly fixed on the outside of one end of the air tube 4. Although the mouthpiece can improve the bite from the upper and lower rows of teeth in the middle, it can avoid damaging the more fragile side corners of the epidermis. However, in the process of setting the laryngeal mask, it is often necessary to rotate skillfully to avoid the position of the epiglottis. At this time, the fixed mouthpiece will also rotate together and easily get stuck in the patient's mouth due to insufficient space. The operability still needs to be improved. , and even affect the success rate of laryngeal mask placement

[0012] Based on the above-mentioned deficiencies, its functions have not yet been perfected, and there is still room for improvement in the prior art

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