Micro guide wire with nickel-titanium hose

Abstract

The invention relates to the technical field of medical instruments, and discloses a micro guide wire with a nickel-titanium hose, the hose body is inserted into a blood vessel, and the head end of the hose enters the blood vessel, so that the micro guide wire is more durable and not easy to deform in complex nerve and blood vessel intervention; vascular injury and operation failure caused by shadow change of an instrument in an operation are avoided to a great extent, the problems that the outer layer of the far end of the core wire generally only has a single winding wire, the flexibility and durability are poor, and the core wire is more durable and can deform easily in complex nerve and blood vessel intervention are avoided, and the success rate of the operation is increased; the push tube is pushed, slides at the right end of the core wire body rod body and drives the sliding block to slide on the surface of the connecting rod, so that the sliding block extrudes the net-shaped woven ball body to bulge, the outside of the net-shaped woven ball body is tightly attached to the inside of a blood vessel, and tortuosity and stenosis of the blood vessel, such as intracranial blood vessels and difficult operation of feeding a micro guide wire to the far end of the blood vessel, are avoided; complications are easily caused, and the operation effect is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a micro guide wire with a nickel-titanium flexible tube. Background technique [0002] Guide wire (GuideWire), also known as guide wire or guide wire, is one of the main tools for percutaneous catheterization. The guide wire guides and supports the catheter, helps the catheter enter blood vessels and other cavities, and guides the catheter to reach the lesion smoothly. It plays the same important role as the catheter in the operation of catheter therapy. As an emerging medical development, minimally invasive intravascular interventional therapy technology has been gradually promoted in China in recent years. The process is to selectively insert the interventional therapy under the guidance of medical imaging equipment. Medical devices are delivered to many important organs and parts of the human body through naturally existing vascular channels, such as: heart, liver, br...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a micro-guide wire with a nickel-titanium tube, which has improved softness and durability of the soft segment, and is more durable in complex neurovascular interventions and will not easily deform and extend into blood vessels The advantage of providing support to prevent displacement solves the problem that the outer layer of the distal end of the core wire generally only has a single winding wire, which has poor flexibility and durability. It is more durable and easily deformed in complex neurovascular interventions, resulting in a large Vascular injury and surgical failure due to the change of the instrument during the operation. At the same time, the blood vessel is tortuous and narrow, such as intracranial blood vessels. It is difficult to send the micro-guide wire to the distal end of the blood vessel, which is likely to cause complications.

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