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Medical spring ring

A technology of spring coil and spring structure, applied in the field of medical devices, can solve the problems of increasing the risk of aneurysm recurrence, etc., and achieve the effect of reducing space occupation effect and promoting thrombus formation

Active Publication Date: 2021-01-29
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of this kind of degradable / absorbable coil has absorbability in the part of the structure that is in contact with the blood. After being implanted into the tumor, with the degradation and absorption of the material, it is difficult for endothelial cells to continue to adhere to the surface of the coil, thus Delays the process of endothelialization of the aneurysm neck and increases the risk of aneurysm recurrence

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0042] Please refer to figure 1 , the present embodiment provides a medical coil, which is used for embolization of lumen lesion sites such as aneurysms. It includes a primary spring structure and at least one developing mark 6. The primary spring structure includes at least one first spring 1 and at least one second spring 2 axially connected. At least one developing mark 6 is arranged on at least one first spring. 1 and at least one section of the second spring 2 at the junction. Preferably, the embodiment of the present invention—a primary spring structure of a medical coil mainly includes a section of first spring 1 and a section of second spring 2, the outer diameters of the first spring 1 and the second spring 2 are consistent, wherein the first The spring 1 and the second spring 2 are spring structures with uniform shape formed by winding corresponding silk wires on the mandrel, which are generally in the form of a tubular structure with a cavity, so that the medical c...

Embodiment 2

[0052] Please refer to image 3 , the second embodiment provides a medical coil, including a primary spring structure, a developing wire 3, an anti-unrotation member 4, two fixing structures 5 and a developing mark 6, the primary spring structure consists of a first One spring 1 and one section of second spring 2 are connected, the scope of the diameter of the developing wire 3 in the second embodiment of the medical coil, the installation position of the developing wire 3 on the primary spring structure, and the installation of the anti-unrotation member 4 The position, structure and material of the fixing structure 5 , and the range of the outer diameter and the range of the lateral dimension of the developing mark 6 are the same as those of the medical coil in Embodiment 1, and will not be repeated here. like image 3 As shown, the main difference between the medical coil in Embodiment 2 and Embodiment 1 is that the second spring 2 is located at the proximal end of the pri...

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Abstract

The invention relates to a medical spring ring. The medical spring ring comprises a primary spring structure and at least one developing mark, wherein the primary spring structure comprises at least one section of a first spring and at least one section of a second spring which are axially connected, the at least one section of the first spring comprises at least one absorbable spring, and the atleast one section of the second spring comprises at least one non-absorbable spring. According to the invention, the absorbable spring has the characteristics of short absorption period and high absorption ratio, and is beneficial to reducing and even eliminating the occupation effect in a relatively short time; and the second spring is mainly piled up at a tumor neck to provide an attachment condition for endothelialization of the tumor neck.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical coil used for aneurysm embolization. Background technique [0002] Patients with intracranial aneurysms often present with headaches, eye movement disorders, and limb swelling. This is due to the mass effect of the aneurysm, which causes the corresponding symptoms caused by the aneurysm's compression of peripheral nerves, blood vessels, and organs. At present, endovascular interventional microcoil embolization technology has become one of the main methods for the treatment of intracranial aneurysms. The use of coils to treat aneurysms can inhibit intratumoral blood flow, rapidly promote intratumoral thrombosis, and can promote aneurysm neck. The formation of endothelialization is the guarantee for effective treatment of aneurysm and prevention of rebleeding or recurrence of aneurysm after operation. The coils used clinically are generally not degradable. Al...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/1214A61B2017/00831A61B2017/0092
Inventor 蔡亮钱少君余画刘建民赵瑞
Owner MICROPORT NEUROTECH SHANGHAI
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