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Endovenous laser treatment system for varicose veins of lower limbs

A technology for varicose veins and laser treatment, applied in the direction of catheters, etc., can solve the problems of catheters and optical fibers misleading into the deep venous system of the lower limbs, the inability to observe the tip of catheters and guide wires, and the lack of surgical instruments, so as to shorten the operation time and avoid damage Deep veins, the effect of increasing safety

Inactive Publication Date: 2012-07-11
复旦大学附属中山医院青浦分院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no special surgical instrument for this technology, and the position of the catheter and guide wire tip in the vein cannot be observed during the operation, and there is a risk of misleading the catheter and optical fiber into the deep venous system of the lower extremity

Method used

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  • Endovenous laser treatment system for varicose veins of lower limbs
  • Endovenous laser treatment system for varicose veins of lower limbs
  • Endovenous laser treatment system for varicose veins of lower limbs

Examples

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Effect test

Embodiment

[0022] An endocavity laser treatment system for lower extremity varicose veins consists of an introduction device and a delivery device.

[0023] Such as figure 1 Shown is a schematic diagram of the structure of the introduction device. The introduction device includes an indwelling needle tube 2 with a puncture needle 1 inside. The indwelling needle tube 2 includes a part located under the skin and a part located outside the skin during use. The outer wall of the front end of the subcutaneous part is conical in use, and the inner wall of the front end of the part located outside the skin is conical in use. , the length L of the subcutaneous part is 50 mm when used.

[0024] When in use, the laser fiber introduction device enters the subcutaneous blood vessel through the puncture needle 1, then removes the puncture needle 1, leaves the indwelling needle tube 2 in the blood vessel, and then inserts the delivery device into the indwelling needle tube 2.

[0025] Such as figu...

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PUM

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Abstract

The invention provides an endovenous laser treatment system for varicose veins of lower limbs, and is characterized in that: the system comprises a lead-in device and a conveyer device, wherein the conveyer device comprises a double-cavity conveying duct, a lead-in guide wire and a laser fiber; and the lead-in guide wire and the laser fiber are arranged in the two cavities of the double-cavity conveying duct respectively. By the endovenous laser treatment system, the dangers that the fiber is mistakenly guided into deep veins of lower limbs, and then deep-vein thrombosis is formed can be avoided.

Description

technical field [0001] The invention relates to an intracavity laser treatment system for varicose veins of lower limbs, belonging to the technical field of medical devices. Background technique [0002] At present, there are many treatment methods for varicose veins of the lower extremities, including high ligation of the great saphenous vein plus spot stripping, sclerosing agent injection plus compression therapy, intravascular radiofrequency ablation, endoscopic perforating vein resection, laser vein closure surgery, etc. Laser vein closure surgery was first used clinically in 1997 to treat varicose veins of the lower extremities. Since 2003 in our country, more than 200 hospitals have successively carried out this new technology. Compared with the traditional high ligation plus point stripping operation, because there is no need to strip the main trunk of the great saphenous vein, and there is no need to make small incisions to strip the varicose veins and communicatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/24
Inventor 范隆华刘坚军李旭徐德春
Owner 复旦大学附属中山医院青浦分院
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