Balloon catheter through which guide wire can pass under endoscope

Abstract

The invention relates to a balloon catheter through which a guide wire can pass under an endoscope. The balloon catheter includes a catheter body and a connector; the portion, near the distal end, ofthe catheter body is provided with a balloon, the catheter body is internally provided with an inflation channel and a guide wire channel in the axial direction, and the inflation channel between theproximal end of the catheter body and the balloon is internally provided with a sealing valve; the connector is a three-way tubular member internally provided with a catheter pipeline and a guide wirecannula communicated with the catheter pipeline, the proximal end of the catheter body passes through the catheter pipeline, the two ends of the catheter pipeline are provided with sealing clamping mechanisms to make the catheter body detachably and hermetically connected with the two ends of the catheter pipeline of the connector, and an inlet of the guide wire channel is in the catheter pipeline. According to the detachable balloon catheter, the balloon can be used for sealing without exiting from the airway during a tracheoscopic operation in case of massive hemorrhage to avoid previous complex operation which needs repeated exchange and introduction of the balloon catheter, the two steps of original guide wire inserting and balloon catheter inserting are combined into one, and the more efficient and more accurate hemostasis effect is achieved.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a balloon catheter that can pass through a guide wire under the guidance of an endoscope. Background technique [0002] The operation of the existing bronchoscope-guided three-lumen balloon catheter hemostasis: insert a bronchoscope through the nasal / oral / tracheal intubation channel to determine the active bleeding site, and insert a guide wire to the active bleeding site through the bronchoscope biopsy channel. Slowly exit the bronchoscope, insert a balloon catheter along the guide wire, insert the bronchoscope again through the nasal / oral / tracheal intubation channel, and observe the bleeding segment / lobe under direct vision In the bronchial lumen process, after confirming the position of the balloon, inflate the balloon through the proximal Luer connector and fix it until the bleeding stops, so as to prevent blood from rushing from the affected side to other normal healthy side b...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to overcome the disadvantages of complicated hemostatic operation of the existing three-lumen balloon catheter and the need for repeated exchange of bronchoscopes, and provides a balloon catheter that can pass a guide wire under the guidance of an endoscope. Using the three-lumen balloon catheter , the operation of bronchoscopy can be performed without exiting the airway for balloon occlusion, avoiding the complicated operation of repeatedly exchanging and introducing the balloon catheter in the past

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