An external video cable and ventilation catheter

Abstract

The invention discloses an external video cable and ventilation catheter (bronchial catheter or tracheal catheter), which includes a video cable and a video catheter connection mechanism. The video conduit connection mechanism is provided with a video connection mechanism that can temporarily lock the position of the video conduit connection mechanism and the rear section of the video cable, loosen the video conduit connection mechanism, and can manipulate the tail of the video cable to make the video Cables move forward, backward or turn independently. The video catheter connection mechanism is also provided with a catheter connection mechanism for flexible connection with the ventilation catheter, which can temporarily lock the position of the properly assembled ventilation catheter, loosen the catheter connection mechanism, and can manipulate the video catheter connection mechanism and the ventilation catheter. Ventilation tube detached. The external video cable and ventilation catheter provided by the present invention can make full use of the space in the patient's trachea, reduce the occupation of the ventilation cavity by the video cable, reduce the airway pressure of the ventilation catheter for one-lung ventilation, and can adjust the inspection and positioning of the airway by the video cable , simple structure and wide applicability.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an external video cable and ventilation catheter. Background technique [0002] Visual bronchial tubes are widely used in anesthesia for thoracic surgery. Its function is to isolate the left and right lungs and achieve separate ventilation of the left and right lungs. It can safely and effectively implement competent single-lung ventilation to provide conditions for tube-side surgery. However, the cost is high and it is difficult to widely promote it in clinical practice. [0003] But its shortcomings are also very obvious: (1) The video field of view is covered by the head end of the tube, and only part of the airway lumen in front of the tube can be observed, and the airway lumen cannot be further observed; (2) The video cable is fixed in the catheter wall, which greatly reduces the The cross-section of the bronchial catheter is occupied, which significantly reduces ...

AI Technical Summary

Problems solved by technology

However, the cost is high and it is difficult to widely promote it in clinical practice.

[0003] But its shortcomings are also very obvious: (1) The video field of view is covered by the head end of the tube, and only part of the airway lumen in front of the tube can be observed, and the airway lumen cannot be further observed; (2) The video cable is fixed in the catheter wall, which greatly reduces the The cross-section of the bronchial catheter is occupied, which significantly reduces the effective ventilation area and increases the ventilation resistance, especially in small bronchial catheters; (3) It is difficult to embed the video cable in the narrow video cavity Large, reducing the production process and increasing the production cost

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