Blood diversion system

Abstract

The invention provides a blood bypass system. The blood bypass system comprises a first blood vessel sheath module, a second blood vessel sheath module and a bypass pipeline, two ends of the bypass pipeline are respectively connected with the first blood vessel sheath module and the second blood vessel sheath module; the first blood vessel sheath module comprises a first catheter sheath unit and a first dilator unit, and the first catheter sheath unit is connected to the first dilator unit in a sleeving mode; the second blood vessel sheath module comprises a second catheter sheath unit and a second dilator unit, and the second catheter sheath unit is connected to the second dilator unit in a sleeving mode; the flow turning pipeline comprises a speed adjusting unit and a filtering unit, the speed adjusting unit can adjust the flow speed of blood flow, and the filtering unit can filter embolus particles in the blood flow. According to the blood bypass system, the length and tortuosity of a path from a blood vessel entering point to a target treatment point can be greatly shortened, and embolus particles in blood can be effectively filtered.

Description

technical field [0001] The present invention relates to the technical field of medical devices, in particular to a blood bypass system. Background technique [0002] Manifestations of carotid artery disease often include plaque deposits in blood vessels that narrow the junction between the common carotid artery and the internal carotid artery. These plaque deposits increase the risk of embolic particles being produced and entering the brain's vasculature, leading to neurological consequences such as transient ischemic attack, ischemic stroke, or death. Furthermore, if this narrowing becomes severe, blood flow to the brain is blocked, with serious and sometimes fatal consequences. [0003] Currently, two main therapies are used to treat carotid artery disease. The first treatment is open surgery, Carotid Endarterectomy (CEA), which relies on blocking the common, internal, and external carotid arteries, opening the carotid artery at the site of the disease, and cutting The ...

AI Technical Summary

Problems solved by technology

However, these filters have certain limitations

They must be advanced into the target vessel and over the stenosis before deployment, which exposes the cerebral vessel to embolic flow; filters are not always easily advanced, deployed, and Removal; filter only filters particles larger than the pore size of the filter (typically 100-120 μm); blood flow cannot be filtered 100% due to incomplete attachment of the filter itself; debris is present during filter removal risk of crumbs escaping

On the other hand, the length and tortuousness of the path from the vascular access point to the target treatment point in the traditional interventional surgery method are relatively long, resulting in a long operation time and high difficulty

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