Locally-plugged thrombus scaler

Abstract

The invention provides a locally-plugged thrombus scaler, which comprises a core tube, a sleeve, a first saccule, a second saccule and a thrombus scraping skein, wherein the sleeve is sleeved outside the core tube in a movable way; the first saccule is connected to the head end of the core tube; the second saccule is sleeved outside an inner tube of the sleeve; and the thrombus scraping skein is sleeved outside the core tube in a movable way and is arranged in front of the sleeve. By the locally-plugged thrombus scaler, two saccules are expanded simultaneously to plug thrombus deposition positions on veins and form a section of closed space, and thrombus is crushed and scraped by rotating the thrombus scraping skein in the closed space. The locally-plugged thrombus scaler can scrape thrombus completely, prevent vein inner membranes from being injured, discharge the thrombus from human bodies completely and prevent crushed small thrombus blocks from remaining in the human bodies, is suitable for scraping venous thrombosis of limbs of the human bodies and is particularly suitable for scraping the thrombus at the deep positions of femoral veins of the human bodies by using a percutaneous microtrauma surgical technology.

Description

technical field [0001] The invention relates to a medical device, in particular to a partial blockage thrombus scraper for treating deep vein thrombosis of lower extremities. Background technique [0002] Due to changes in dietary structure and other reasons, the incidence of thrombosis in people is on the rise, especially the number of cases of deep vein thrombosis in the lower extremities is increasing. Thrombus deposition in veins can cause blood flow disturbance and stasis, resulting in thrombophlebitis within the veins. For patients with chronic iliofemoral vein thrombosis, venous thrombosis can lead to long-term swelling of the lower limbs, varicose veins, and ulceration. In addition, after the venous thrombus falls off, it may also transfer to other parts and organs of the body, resulting in serious complications. For example, a thrombus in a vein travels through the vein and deposits in the lung, causing a pulmonary embolism that can lead to death. Therapeutic met...

AI Technical Summary

Problems solved by technology

However, the wire also has the potential to scratch the lining of blood vessels

[0008] The above-mentioned prior art still has deficiencies in the following three aspects: 1. The curettage effect on thrombus nuclei or old thrombus is not satisfactory, and thrombus is likely to form again; 2. The intima of the blood vessel is damaged during thrombus scraping, and secondary thrombus is easily formed 3. Part of the broken small thrombus generated during the scraping and locking process remains in the blood and enters the bypass arteries and organs, which may lead to embolism or functional failure of related organs

Images