Multifunctional treatment catheter

Abstract

The invention relates to the field of medical instruments, in particular to a multifunctional treatment catheter. The multifunctional treatment catheter comprises a catheter body and a balloon wrapping the outer wall of the catheter body, wherein a micro-catheter is arranged in the catheter body, the inner part of the micro-catheter is hollow to form a micro-catheter inner cavity channel, a suction inlet is formed in the near end of the catheter body, and a pressurizing inlet is further formed in one side of the near end of the catheter body; the catheter body is a three-cavity catheter whichis not in communication with the catheter body, the three-cavity catheter comprises a suction cavity channel, a pressurizing cavity channel and a micro-catheter inner cavity channel, the suction cavity channel communicates with the suction inlet, the pressurizing cavity channel communicates with the pressurizing inlet, and the catheter not only can block blood flow, but also has a thrombus suctionfunction. The micro-catheter is arranged in the multifunctional treatment catheter, and a thrombectomy stent can be conveyed for mechanical thrombectomy. When catheter thrombus suction is performed,stent thrombus taking can be performed at the same time, so that the operation time is shortened, and expenses borne by a patient and medical insurance expenses are reduced.

Description

technical field [0001] The invention belongs to the field of medical equipment, and more specifically, the invention relates to a multifunctional treatment catheter. Background technique [0002] Cardiovascular and cerebrovascular embolism may cause myocardial infarction, stroke and other diseases, which pose a huge threat to human life and health. The current main treatment methods include stent (mechanical) thrombectomy and catheter aspiration. Mechanical thrombectomy and catheter aspiration are both to remove thrombus from human blood vessels through physical methods, so as to recanalize the blood vessels and restore the normal flow of blood, so as to achieve the purpose of treatment. [0003] The main principle of mechanical thrombectomy is to send a thrombus retrieval stent made of memory alloy material to the lesion with the aid of a guide wire and a catheter. After the thrombus retrieval stent is released, it captures and pulls the thrombus into the catheter and takes...

AI Technical Summary

Problems solved by technology

[0004] Existing thrombectomy stents are generally laser-engraved, and the surface is made of different grids. The thrombus is embedded in the mesh of the stent, and its clamping force is relatively limited. During the thrombectomy process, the thrombus is easy to fall off or break from the thrombus retrieval stent. A small thrombus is formed and falls off. Under the action of blood flow, it escapes to a small blood vessel farther away, and will not be able to recapture the thrombus, resulting in the risk of secondary stroke. Negative pressure in the lumen, because the diameter of the tube body is limited by the diameter of the blood vessel, the nozzle is generally small, the suction force is not enough, and the suction time is long, causing a lot of pain to the patient; the existing thrombectomy cannot be performed simultaneously with the stent (mechanical) Plugs and Catheter Suction Plugs

In addition, it has been found from relevant literature that after using catheter suction, stent retrieval is needed again for up to 65% of the cases. Once rescue is used, a microcatheter must be added to deliver the thrombectomy stent, which is troublesome for doctors to operate. The operation time is long, which is not conducive to the recovery of the patient, and the cost borne by the patient is also high

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