Novel embolectomy catheter system

Abstract

The invention relates to the technical field of medical instruments, and provides a novel embolectomy catheter system. The novel embolectomy catheter system is composed of a blocking balloon catheter sheath and an embolectomy balloon catheter. When an embolectomy operation is conducted, after percutaneous puncture succeeds, a guide wire follows up for guiding, a dilator and the catheter sheath follow up under the guidance of the guide wire, the catheter sheath follows up to the near end of a thrombus embolus, the dilator exits, the far end of the catheter sheath is kept to be located at the near end of the thrombus embolus, the blocking catheter sheath is pushed forwards to the near end of the thrombus embolus, a balloon is dilated to block movement of the thrombus embolus to the near end, under the guidance of the guide wire, a guide wire cavity of the blocking catheter sheath follows up the embolectomy balloon catheter, a balloon on the embolectomy balloon catheter is dilated, and therefore the thrombus embolus is limited between the two balloons; at the moment, the embolectomy balloon catheter is pulled back to pull the thrombus embolus into the blocking catheter sheath located in the middle, and then the embolectomy operation is completed.

Description

technical field [0001] The invention relates to an interventional treatment device, which is a novel thrombus retrieval catheter system for interventional treatment of thromboembolic diseases in a percutaneous puncture cavity. Background technique [0002] Thromboembolic diseases include arterial embolism, arterial thrombosis, and venous thromboembolism. Existing treatments mainly include vascular thrombectomy, catheter-based thrombolysis, and mechanical thrombectomy. Thrombectomy requires dissection. Separation and incision of blood vessels, such as femoral artery, femoral vein or brachial artery incision, etc., with the development of endovascular interventional technology and the innovation of materials, this open surgical method is gradually replaced by endovascular treatment, that is, catheter contact Thrombolysis, mechanical embolectomy, and catheter-based thrombolysis have extremely strict surgical indications due to the risk of bleeding. A large number of patients ha...

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Problems solved by technology

[0002] Thromboembolic diseases include arterial embolism, arterial thrombosis, and venous thromboembolism. Existing treatments mainly include vascular thrombectomy, catheter-based thrombolysis, and mechanical thrombectomy. Thrombectomy requires dissection. Separation and incision of blood vessels, such as femoral artery, femoral vein or brachial artery incision, etc., with the development of endovascular interventional technology and the innovation of materials, this open surgical method is gradually replaced by endovascular treatment, that is, catheter contact Thrombolysis, mechanical embolectomy, and catheter-based thrombolysis have extremely strict surgical indications due to the risk of bleeding. A large number of patients have contraindications to catheter-based thrombolysis, so many patients cannot benefit from it. Due to its expensive equipment, mechanical embolectomy cannot be widely used clinically. At the same time, it often needs auxiliary catheter contact thrombolysis. Therefore, the above-mentioned intracavitary treatment methods are still difficult to popularize and apply.

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