Double-cannula drainage tube

Abstract

The invention discloses a double-cannula drainage tube, mainly comprising a drainage catheter, a connecting tube, a connecting rod and a joint, wherein the drainage catheter comprises a drainage catheter outer tube and a drainage catheter inner tube; the drainage catheter inner tube penetrates through the connecting rod, and is connected with the connecting tube; the drainage catheter outer tube is connected with one end of the connecting rod; the tube wall of the drainage catheter outer tube is provided with a plurality of channels along a circumferential direction of the tube wall; each channel extends to the other end of the drainage catheter outer tube from one end of the drainage catheter outer tube; one end of each channel is communicated with the cavity; the other end of each channel is an opening end; the other end of the connecting rod is fixed at a joint position between the drainage catheter inner tube and the connecting tube; the connecting rod is provided with an air vent hole and a medicine injection washing hole; the medicine injection washing hole is communicated with the cavity, so that washing liquid and medicine liquid can flow into a patient body through a plurality of through holes, therefore the situation that double cannulas cannot be used due to the blockage caused by washing and medicine injection can be prevented.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a double-set drainage tube. Background technique [0002] Drainage tubes are very common in the medical field. Drainage tubes are used to insert into the patient's body to drain waste fluid, blood, flushing fluid, etc. from the patient's body. The original product uses PVC tubes. The material of PVC tubes is too hard, so it is not suitable for contact with human wounds and will stay For drainage, the catheter cannot return to its original shape after being bent. In the past, a single-lumen drainage tube was commonly used. Although this method is simple and easy to implement, it is easy to be blocked by blood clots and necrotic tissue, resulting in poor drainage. Contents of the invention [0003] The technical problem solved by the present invention is to provide a double-set drainage tube with simple structure, convenient operation, avoiding the blockage of flushing and inject...

AI Technical Summary

Problems solved by technology

[0002] Drainage tubes are very common in the medical field. Drainage tubes are used to insert into the patient's body to drain waste fluid, blood, flushing fluid, etc. from the patient's body. The original product uses PVC tubes. The material of PVC tubes is too hard, so it is not suitable for contact with human wounds and will stay Drainage, the catheter cannot return to its original shape after being bent. In the past, a single-lumen drainage tube was commonly used. Although this method is simple and easy, it is easy to be blocked by blood clots, necrotic tissue, etc., resulting in poor drainage

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