Device for withdrawing venous thrombus from lower limb

Abstract

The invention discloses a device for withdrawing a venous thrombus from a lower limb. The device comprises a thrombus withdrawing module, wherein the thrombus withdrawing module comprises a filter stand with elasticity and a thrombus withdrawing bag, the thrombus withdrawing bag is of a metallic-wire-woven reticular structure with one open end and one closed end, and the open end of the thrombus withdrawing bag is fixedly connected with the middle of the filter stand. According to the device disclosed by the invention, the problems during thrombus withdrawing such as thrombolytic drug employment, thrombus falling occurrence and haemoglobinuria occurrence can be avoided, the cost is low, the structure and operation are simple, and thus, the device has higher safety.

Description

technical field [0001] The invention belongs to the technical field of medical interventional therapy, and in particular relates to a lower extremity vein thrombus removal device. Background technique [0002] Acute lower extremity deep vein thrombosis is a serious condition that can lead to death or disability from pulmonary embolism. Related endovascular interventions include catheter-directed thrombolysis (CDT), thrombus aspiration, or mechanical thrombectomy. CDT can promote thrombolysis and reduce the incidence of post-thrombotic syndrome (PTS), but there is a high risk of bleeding, a long time for thrombolysis, and a long hospital stay, so close observation is required. In recent years, the mainstream treatment method is mechanical thrombectomy, such as Rotarex thrombus catheter (StraubMedical, Wangs, Switzerland), Trellis Reserve Peripheral Infusion System (Covidien, USA), Angiojet PowerPulse catheter system (Boston Scientific, USA) can Suction is used to remove the...

AI Technical Summary

Problems solved by technology

In recent years, the mainstream treatment method is mechanical thrombectomy, such as Rotarex thrombus catheter (StraubMedical, Wangs, Switzerland), Trellis Reserve Peripheral Infusion System (Covidien, USA), Angiojet PowerPulse catheter system (Boston Scientific, USA) can Suction is used to remove the thrombus in the vein to improve the efficiency of thrombus removal, reduce the infusion dose of thrombolytic drugs and the time of thrombolysis, but it may cause hemolysis, hemoglobinuria, damage to the vessel wall and valve, and it is easy to cause thrombus to fall off. , the need to use related equipment and disposable consumables requires a higher cost

[0003] In view of this, for patients with lower extremity deep vein thrombosis who have contraindications to thrombolysis, it is necessary to design a thrombectomy device with simple structure, low cost, and how to perform thrombectomy without the use of thrombolytic drugs to avoid water pulse And suction operation needs external electric equipment, reduce the cost of treatment equipment, and avoid problems such as thrombus falling off and hemoglobinuria

Images