A thrombolytic balloon catheter device

Abstract

The invention provides a rapid exchange catheter device that can be used for thrombolysis in coronary artery thrombus and can be used for percutaneous transluminal coronary angioplasty (PTCA). The device includes a guide wire tube, an inner tube , outer tube and balloon; the middle and distal section of the wire guide tube, the inner tube and the outer tube are coaxially invaginated from the inside to the outside; It opens in the inner cavity of the inner tube; the inner cavity of the inner tube is a connected perfusion cavity, and its proximal end is provided with a drug injection port, and its far part is provided with perfusion side holes and guide wire inlets that open in multiple directions; the outer tube and the inner tube The space between them is the balloon pressure-reduction cavity, the proximal end is provided with the balloon pressure-reduction hole, and the distal end communicates with the balloon cavity. The present invention integrates the functions of the thrombolytic catheter and the balloon catheter into one catheter, can quickly complete the two operations of thrombolysis and PTCA in coronary thrombosis, can reduce the thrombus load, prevent thromboembolism, shorten the operation time, and reduce the number of doctors and doctors. X-ray exposure of the patient.

Description

technical field [0001] The present invention relates to a fast-exchange catheter device that can be used for thrombolysis in coronary artery occlusive lesions, and can perform percutaneous transluminal coronary angioplasty (PTCA) on severe stenosis segments of occlusive lesions. In particular, it has the following two advantages: 1. It reduces the passing outer diameter of the distal end of the catheter, increases its passability, and reduces the risk of thrombus falling off due to extrusion, thereby preventing thromboembolism; The contact area of ​​the thrombus can further improve the thrombolytic effect, reduce the dosage of thrombolytic drugs, and reduce the risk of bleeding; 3. It simplifies the thrombolytic operation and shortens the X-ray exposure time of doctors and patients. Background technique [0002] At present, there is no thrombolytic balloon catheter available for clinical use. Only the patent document of the State Intellectual Property Office of the People's ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the current rapid exchange reverse thrombolytic balloon catheter, the outer diameter of the distal section is too large, the thrombolytic operation is not simple enough, and the contact area between the thrombolytic drug and the thrombus is small, the perfusion thrombolytic balloon catheter device provided by the present invention It not only reduces the outer diameter of the catheter at the distal end of the catheter, but also prevents the balloon from entering the thrombus. It can also inject thrombolytic liquid into the thrombus in the entire segment at the same time, which increases the contact area between the thrombolytic drug and the thrombus, and improves the efficiency of thrombolysis. Thrombosis effect reduces thrombolytic drugs and simplifies thrombolytic operation

Images