Apparatus for breaking thrombus and aspirating thrombus

Abstract

The invention relates to apparatus for breaking thrombus and aspirating the thrombus. The apparatus comprises: an aspirating rotary grinding hand-held system which integrates a rotary grinding head driving device, an aspirating device, a power supply device and a control device; a micro-catheter device which is communicated with the aspirating device and the rotary grinding head driving device; awaste liquid collecting device which is connected to the aspirating device, wherein the aspirating device and the waste liquid collecting device form an airtight passage; and a far-end rotary grindinghead device which is connected to the rotary grinding head driving device through a connecting mandrel, wherein the power supply device provides power for the rotary grinding head driving device. Thefar-end rotary grinding head device and the connecting mandrel are accommodated in the inner cavity of the micro-catheter device; and the control device controls the aspirating device and the rotarygrinding head driving device, so that the aspirating device and the rotary grinding head driving device can run simultaneously. The aspirating action of the invention is carried out synchronously withthe mechanical thrombus breaking, and the front end of the far-end rotary grinding head can exceed the length range of the micro-catheter device for a certain distance, thereby playing a role in directly rotating and grinding the thrombus without damaging blood vessels.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to an instrument for breaking thrombus and sucking thrombus. Background technique [0002] Stroke is one of the main causes of human disability and death. Acute ischemic stroke (acuteischemic stroke, AIS) accounts for about 80% of all strokes. Blood Penumbra Organization. Current typical treatment options include intravenous thrombolysis and mechanical thrombectomy. [0003] The method of intravenous thrombolysis is to inject a thrombolytic agent into the vein, and its main component is tissue plasminogen activator (rt-PA). The principle is that rt-PA can dissolve the thrombus in the diseased blood vessel and achieve the blood flow The purpose of recanalization is to restore the blood oxygen supply to the brain tissue in the vascular perfusion area and reduce the size of the cerebral infarction. However, the treatment plan for intravenous thrombolysis is strictly ti...

AI Technical Summary

Problems solved by technology

However, there are some shortcomings in mechanical thrombectomy at present. For example, when the device removes the thrombus from the human body, some blood clots or particles may fall from the retrieval process or the device cannot completely remove the thrombus due to the complicated situation of the thrombus.

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