Thin lens video laryngoscope and flexible endotracheal tube

Abstract

The invention discloses a thin lens video laryngoscope and a flexible tracheal catheter, and belongs to the technical field of medical instruments. The thin lens video laryngoscope comprises a displayscreen, a lens handle and a lens, and the lens handle is internally provided with an illuminator, a camera device, a switch, a battery and a charging interface, and the lens is a hollow thin plate bent according to the physiological curvature of the oral cavity, tongue and throat; the lens is internally and sequentially provided with an optical fiber channel, a suction channel and a flexible tracheal catheter channel; the cross section of the flexible tracheal catheter channel is elliptical, the outer side wall of the flexible tracheal catheter channel is provided with an opening, and the opening is provided with a polyester belt; an air inflation bag is arranged at the portion, 1cm distant from the front end face, of the outer surface of the front end of the lens and provided with an airinflation pipe I. According to the thin lens video laryngoscope, the tracheal intubation operation is conducted more conveniently, and the tracheal intubation in a difficult airway with the opening degree of only about 0.5 cm can be simpler and more accurate.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to a video laryngoscope. Background technique [0002] Video laryngoscopy for tracheal intubation does not require the head and neck to be tilted back excessively, and the exposure of the glottis is simple, which solves the problem of tracheal intubation for most of the difficult airways in general anesthesia. But present technology still has the following defects: 1, the endotracheal tube used is a flexible plastic tube with a fixed caliber. 2. The lens of the video laryngoscope has a channel for the insertion of the tracheal tube. The thickness of the lens is relatively large, and the mouth opening must be large (more than 3cm) to be inserted into the oral cavity. 3. It is easy and clear to expose the glottis with the laryngoscope. Due to the large curvature of the lens, even with an adjustable tip, the endotracheal tube cannot be inserted into the glottis smoothly du...

AI Technical Summary

Problems solved by technology

However, the current technology still has the following defects: 1. The endotracheal tube used is a bendable plastic tube with a fixed caliber.

3. The laryngoscope exposes the glottis easily and clearly. Due to the large curvature of the lens, even with an adjustable tip, the endotracheal tube cannot be inserted into the glottis smoothly due to limited oral space.

4. For patients with small mouth opening, video laryngoscope cannot be used, and endotracheal intubation must be performed with complex operation steps (such as nasal intubation) or instruments (such as fiberoptic bronchoscope). , endotracheal intubation cannot be done quickly

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