Medical spring ring and manufacturing method and using method thereof

A technology of spring coils and coils, which is applied in the field of medical devices, can solve problems such as the inability to change the softness of spring coils, and achieve the effects of improving safety and treatment effects, reducing the risk of rupture, and not being easy to compress

Pending Publication Date: 2019-08-30
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a medical coil and its manufacturing method and use method, which can overcome the problem that the softness of the existing coil cannot be change

Method used

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  • Medical spring ring and manufacturing method and using method thereof
  • Medical spring ring and manufacturing method and using method thereof
  • Medical spring ring and manufacturing method and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Please refer to figure 1, the present embodiment provides a medical coil for embolization of luminal lesion sites such as aneurysms, including not only a first coil 1 but also an anti-untwisting component 2 . The first coil 1 may be wound from a metal wire, which may not have the ability to change the stiffness under a set trigger condition. The first coil 1 can be a primary coil, such as a tubular spring structure, and the anti-untwisting component 2 can be a wire-like structure with one or more strands, and is arranged along the axial direction of the first coil 1 at the second In a coil 1 , it can also be said that the anti-untwisting component 2 is arranged in the cavity of the tubular spring structure of the first coil 1 . The two ends (ie the proximal end and the distal end) of the anti-unrotation component 2 are fixedly connected to the two ends (ie the proximal end and the distal end) of the first coil 1 respectively, that is, the proximal end and the first end...

Embodiment 2

[0062] Please refer to figure 2 , the present embodiment provides a medical coil, which is used for the embolization of luminal lesions such as aneurysms, and has a first coil 1. The first coil 1 can be a primary coil, such as a tubular spring structure. The first Both ends of the coil 1 are respectively connected with a connection mechanism 3, such as a tubular, cap-shaped or hook-shaped fastener, which is welded to both ends of the first coil 1 by welding to strengthen the medical coil mechanical properties; the connecting mechanism 3 can also be a structure formed by adhesive, which is bonded to both ends of the first coil 1 .

[0063] The difference between the medical coil of this embodiment and the medical coil of Embodiment 1 is that the anti-unrotation component is omitted, and part or all of the first coil 1 is made of a material with variable stiffness under the set trigger conditions . The material with variable stiffness under the set triggering conditions may b...

Embodiment 3

[0072] Please refer to image 3 , this embodiment provides a medical coil, which is used for embolization of luminal lesion sites such as aneurysms, and not only has a first coil 1 , but also has a second coil 4 . The first coil 1 may be wound from a metal wire, which may not have the ability to change its stiffness under a set trigger condition. Both the first coil 1 and the second coil 4 are primary coils, such as tubular spring structures, the outer diameter of the second coil 4 is smaller than the inner diameter of the first coil 1, and the second coil 4 is arranged in the first coil 1 (i.e. the second coil 4 is nested in the lumen of the first coil 1), and the two ends (i.e. the near end and the far end) of the second coil 4 are respectively connected to the two ends (i.e. the near end and the far end) of the first coil 1 The distal end) is fixedly connected, that is, the proximal end of the second coil 4 is fixedly connected with the proximal end of the first coil 1 , a...

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Abstract

The invention provides a medical spring ring and a manufacturing method and using method thereof. At least a part of the spring ring is made from materials of which the rigidity is changeable under the set triggering condition, so that the rigidity of the materials of the part of the spring ring can be changed through exerting the set triggering condition during a surgery or after the surgery, further the rigidity of the medical spring ring can be changed, and the requirement for the softness of the spring ring in the process of a neurological intervention surgery and the requirement for the rigidity of the spring ring after packing is completed can be effectively met.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical spring coil, a manufacturing method and a using method thereof. Background technique [0002] Ruptured intracranial aneurysms have high morbidity and mortality. With the improvement of medical technology, the development of device materials and the accumulation of experience of neurointerventional physicians, endovascular therapy has become the preferred treatment method to reduce the rebleeding rate and mortality of ruptured intracranial aneurysms. Among the many treatment methods, aneurysm embolization is the most widely used, including embolic coils, liquid embolic agents, intratumoral embolization devices, and balloon / stent-assisted techniques. Among them, embolic coils have attracted more and more attention from clinicians and researchers due to their advantages of convenient operation, stable implantation, safety and effectiveness, and have gradually beco...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/12145A61B2017/00526A61B2017/00867A61B2017/1205
Inventor 查序郭远益常孟琪陈冰
Owner MICROPORT NEUROTECH SHANGHAI
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