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Medical micro guide wire

A technology of guide wire and core wire, applied in the direction of catheter, guide wire, medical science, etc., can solve the problems of endangering the patient's life, the distal end is not soft enough, easy to break, etc.

Pending Publication Date: 2021-08-20
SUZHOU ZENITH VASCULAR SCITECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The use requirements of the guide wire are proximal support and distal flexibility. However, the current products on the market can maintain the proximal support, but the distal end is not soft enough; the distal end can maintain softness, but the proximal support is not enough. The stainless steel material can To ensure the support performance, the nickel-titanium material can guarantee the soft performance. In order to meet the different performance requirements of the two ends, the intermediate connection process is adopted, but the strength of the connection part is weak and it is easy to break. The fracture phenomenon endangers the life of the patient, and the connection part cannot meet the requirements torsional performance

Method used

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention relates to the technical field of medical instruments, and discloses a medical micro guide wire. The medical micro guide wire comprises a flexible core wire and a supporting outer wall; the flexible core wire comprises a supporting section and a flexible section; the flexible section is located on the side close to the far end of the flexible core wire; the supporting section is located on the side close to the near end of the flexible core wire; the flexible section can be flexibly arranged in a blood vessel in a penetrating mode; the supporting section of the flexible core wire is coated with the supporting outer wall; the supporting outer wall is used for providing supporting strength for the supporting section; and the flexible core wire and the supporting outer wall are coaxial and integrally formed. The medical micro guide wire achieves the supporting performance at the near end, achieves the flexible performance at the far end; moreover, the flexible core wire and the supporting outer wall are coaxial and integrally formed, and no connecting part is arranged between the flexible core wire and the supporting outer wall, and thus, the problem of breakage is avoided, and the safety of the medical micro guide wire is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical micro guide wire. Background technique [0002] Stroke, commonly known as stroke, includes ischemic stroke (also known as cerebral infarction) and hemorrhagic stroke (including parenchymal hemorrhage, ventricular hemorrhage and subarachnoid hemorrhage), which is a disease of brain cell and tissue necrosis . Among them, ischemic stroke is an important cause of global adult disability and death. With the improvement of living standards, the life expectancy of my country's population has increased significantly, and the degree of aging has aggravated. At the same time, the number of obese and diabetic people has increased. The incidence rate is getting higher and higher, and it has become one of the main diseases that endanger the lives of Chinese people. The increase in patients with cerebrovascular diseases has promoted the development of neurointerventional sur...

Claims

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Application Information

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IPC IPC(8): A61M25/09A61M25/095A61B17/22
CPCA61B17/22A61B2017/22038A61M25/0105A61M25/09A61M2025/09058A61M2025/09133A61M2025/09191
Inventor 郭力友王宇伦夏洁
Owner SUZHOU ZENITH VASCULAR SCITECH LTD
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