30 results about "Bronchial cannula" patented technology

The invention provides a flattening device for a steel wire of a steel wire knitting outer tube in a bronchial cannula, belongs to the technical field of machinery, and aims to solve the problem that a current forming device is not high in applicability. The flattening device for the steel wire of the steel wire knitting outer tube in the bronchial cannula comprises a rack, wherein forming wheels and material barrels are connected on the rack; the material barrels are used for storing the steel wire wound on the material barrels; a regulating and positioning mechanism is arranged between the forming wheels and the rack; and by virtue of the regulating and positioning mechanism, the forming wheels which are regulated and positioned in position are fixed on the rack. The flattening device for the steel wire of the steel wire knitting outer tube in the bronchial cannula is high in applicability.

The invention provides a single-cavity double-air bag bronchial cannula and belongs to the technical field of medical instrument trachea cannulas. The single-cavity double-bag bronchial cannula comprises a tracheal catheter, a catheter connector, a tracheal cuff, a bronchial catheter, a bronchial cuff, and a tracheal cuff inflation valve. One side of the tracheal catheter between the tracheal cuff and the bronchial cuff is provided with a tracheal catheter side hole; the bronchial catheter in the bronchial cuff is provided with a bronchial catheter side hole; the bronchial catheter side hole is provided with an elastic film; when the bronchial cuff is inflated, the elastic film can sink inward to be pressed against the inner wall of the bronchial catheter to seal the bronchial catheter. The single-cavity double-bag bronchial cannula can achieve the lung separation effect of single-cavity three-bag design by using the single-cavity double-bag design and can be made into different specifications with the internal diameter being 3.0-10.0mm, so that the injury caused to patients by the cannula is effectively reduced and the production difficulty is greatly reduced. The single-cavity double-bag bronchial cannula can be used for both single-side ventilation and double-side ventilation and most importantly, can meet the requirement for one-lung ventilation in adult and infant surgery, so that the universality is greatly improved.

Provided is an auxiliary head fixing device for a bronchial cannula. By adopting the auxiliary head fixing device for the bronchial cannula, it can be convenient to fix and adjust the head of a patient subjected to a bronchoscope operation, and accordingly the efficiency and quality of the operation are improved. According to the technical scheme, the auxiliary head fixing device includes a bed board, a support plate is arranged on the lower portion of the bed board, two clamp plates are arranged at the upper end of the bed board, an arc sleeve is mounted on the bed board, a spline is connected to the lower end of the arc sleeve, a rotation shaft is arranged under a through groove, gears meshing with the spline are arranged on the rotation shaft, rotation of the rotation shaft can drive the arc sleeve to move up and down through meshing of the gears and the spline, a rotation disc is connected to the rear clamp plate, a shaft sleeve is arranged at the center of the rotation disc, a limit disc is fixedly connected to the front clamp plate, location holes are formed in the end face of the rotation disc, and location rods are arranged on the end face, opposite to the rotation disc, ofthe limit disc. When the auxiliary head fixing device is in an original state, the location rods are inserted in the location holes so that the rotation shaft cannot rotate, and when the clamp platesslide in reverse directions, the location rods can be separated from the location holes; the auxiliary head fixing device is novel in design and is provided with a smartly designed structure.