Spring ring

Abstract

The invention discloses a spring ring. The spring ring comprises a spring ring body and a fiber bundle fixedly connected to the spring ring body. The spring ring has the following beneficial effects: according to the structure design of the provided spring ring, the applied friction force in a conveying pipe is lower while the spring ring is released; and the pushing force is more easily and better transmitted along the axial direction of the spring ring, and the stacking situation of the spring ring cannot be produced, so the operation difficulty of an operator is reduced, and the aneurysms rupture risk is reduced.

Description

technical field

[0001] The invention relates to the technical field of medical instruments, in particular to a spring coil. Background technique

[0002] Hemangioma is a hemangioma-like protrusion caused by abnormal changes in blood vessels, especially an aneurysm. When the blood pressure in the blood vessel suddenly rises, the aneurysm ruptures and bleeds, which will cause disability or death of the patient. Since the first report of Guglielmi et al. in 1991, Guglielmidetachable coil (electrolysis detachable coil) for the treatment of intracranial aneurysms, with the development of materials and treatment equipment, coil embolization has become the main treatment for intracranial aneurysms.

[0003] However, when the existing metal coils are released, there is a risk of rupture of the aneurysm during the operation; after the coil is filled, the gravity of the aneurysm is too large to damage the peripheral nerves and blood vessels; in addition, the bare metal coil is current...

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