Ultra-soft intracranial support catheter

Abstract

The ultra-soft intracranial supporting catheter comprises a catheter base and a catheter mechanism, the catheter mechanism comprises a catheter assembly, the catheter assembly is connected with the catheter base and located at one end of the catheter base, the catheter assembly comprises a lining layer, a spring winding layer, a woven layer and an outer wrapping layer, the lining layer is arranged on the inner layer of the catheter assembly, and the outer wrapping layer is arranged on the outer layer of the catheter assembly. An outer wrapping layer is arranged on the outer side of the guide pipe assembly, a spring winding layer is arranged in the middle of the guide pipe assembly, and the spring winding layer is close to one side of the lining layer. The catheter mechanism composed of a multi-layer structure extends into the blood vessel to suck thrombus, so that the catheter is softer than a traditional catheter, friction damage to the blood vessel during normal use is reduced, the excellent pushing performance of the near end of the catheter assembly and the good blood vessel supporting performance in the middle are arranged, and the thrombus sucking efficiency is improved. Due to the torsion control performance of far-end high-torque response, the passing ability of complex tortuous blood vessels and the flexibility of the far-end, the catheter can conveniently penetrate through intracranial far-end blood vessels or convey other instruments to further far-end blood vessels.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular, to an ultra-soft intracranial support catheter. Background technique [0002] Cerebral thrombus is based on cerebral atherosclerosis and plaque. Under the conditions of slow blood flow and low blood pressure, the formed components of blood adhere to the intima of the artery to form a thrombus, which is called cerebral thrombus. For treatment with a thrombus aspiration device, the thrombus aspiration catheter needs to pass through the tortuous blood vessel to reach the anatomical position. Some tubes are not flexible enough to be transported to more distal blood vessels. The typical symptoms of vascular damage include bleeding, hematoma and The symptoms of hemorrhagic shock, some patients may have symptoms of nerve damage and infection, which affect the treatment effect. SUMMARY OF THE INVENTION [0003] In view of the deficiencies of the prior art, the present invention provides...

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Problems solved by technology

[0002] Cerebral thrombosis is based on cerebral atherosclerosis and plaque, under the condition of slow blood flow and low blood pressure, the formed components of blood adhere to the arteries The thrombus formed in the inner membrane of the brain is called cerebral thrombosis. Traditional thrombus is treated by thrombus aspiration device. The thrombus aspiration catheter needs to go through the curved blood vessel to reach the anatomical position. Some tubes are not flexible enough to be transported to more distal blood vessels. And there are many typical symptoms of vascular injury, including hemorrhage, hematoma and hemorrhagic shock, and some patients may have symptoms of nerve injury and infection, which affect the treatment effect

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