Double-tube laryngeal mask device and control method thereof

Abstract

The invention discloses a double-tube laryngeal mask device. The double-tube laryngeal mask device comprises a support, wherein the support is arranged in an air guiding tube and comprises a central shaft, a plurality of supporting rods, two supporting rods extending in forward and reverse directions, a supporting rod hinged to an adjacent shaft sleeve and a power mechanism, wherein the central shaft is coaxially arranged in the center of the inside of the air guiding tube; a plurality of shaft sleeves are slidably arranged on the central shaft in a sleeving manner and can slide along the central shaft in an axial direction; each supporting rod is arranged around the peripheral direction of the corresponding shaft sleeve; one end of each supporting rod is hinged to the corresponding shaftsleeve while the other end of the supporting rod is in contact with the inner wall of the air guiding tube; the two supporting rods which extend in the forward and reverse directions are arranged at the same hinged point of the supporting rods and the shaft sleeves along the axial direction of the central shaft; the supporting rod which extends in the forward direction and the supporting rod whichextends in the reverse direction are hinged at the middle position; and the power mechanism is hinged to two adjacent middle position hinged points which are positioned on an axial plane of the samecentral shaft, and is used for stretching and retracting the support. The invention further provides a control method of the double-tube laryngeal mask device. Stretching and retracting of the supportcan be controlled in real time according to required ventilation amount to control the diameter of the air guiding tube.

Description

technical field [0001] The invention relates to the technical field of medical instruments, and more specifically, the invention relates to a double-pipe laryngeal mask device and a control method thereof. Background technique [0002] Laryngeal mask, as a medical device used to maintain patients' breathing, has been widely used in clinical anesthesia, first aid and resuscitation. Ordinary laryngeal mask has no video function. In some special patients who are difficult to place and use, and the alignment is not accurate, some auxiliary tools are needed to observe, such as an endoscope, so as to determine whether the placement position is correct and whether the epiglottis is correct. Cover the throat to ensure safe and effective ventilation. Moreover, the position of the ordinary laryngeal mask is unstable, and it is prone to shift during the anesthesia or recovery period. Moreover, it is difficult to control the inflation volume of the ventilation mask, which sometimes le...

AI Technical Summary

Problems solved by technology

In order to prevent cross-infection caused by repeated use, most of the laryngeal masks currently used are disposable laryngeal masks, which makes the intubable laryngeal masks more expensive and difficult to be widely used in clinical practice; in addition, different types of laryngeal masks are required according to different ventilation volumes. Laryngeal mask, troublesome to use, high manufacturing cost

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