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Guide wire

A guidewire, proximal technique applied over a guidewire. It can solve the problems of insufficient length of guide wire, complicated operation, time-consuming and laborious, etc., and achieve the effect of simplifying the operation

Pending Publication Date: 2019-01-15
KOSSEL MEDTECH SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

OTW-type balloon dilatation catheters need to pass through the guide wire ( figure 2 ), when the guide wire is withdrawn, because the catheter is relatively long and the guide wire is not long enough, it is impossible to hold the proximal end of the guide wire all the time, so the catheter and the guide wire can only be pulled out of the body together, or the guide wire is extended, and then the One doctor fixes the guide wire, and another doctor withdraws the balloon dilatation catheter from the body, which is a complicated and time-consuming operation

Method used

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Effect test

Embodiment 1

[0045] In this embodiment, a guide wire with a diameter of 0.035 inches is coated with a PTFE coating 2 on the proximal push rod 3, and the center of the proximal push rod 3 has a hole of 0.1-0.2 mm and a ball at the distal end of the guide wire. The capsules 4 are connected, and the end of the proximal push rod 3 has a sealing plug 1 made of a silicone tube with a hardness of 20-90a. 4 Both ends are bonded to the proximal push rod 3, the balloon 4 is close to the surface of the proximal push rod 3 before filling, and the balloon 4 is filled with a certain pressure to expand into a sac-shaped sphere, which is close to the surface of the blood vessel.

Embodiment 2

[0047] refer to Figure 6 , Figure 7 , the structure is the same as that of Example 1, the difference is that the material of the balloon 4 is replaced by a nylon semi-compliant material, and the balloon 4 is folded and wound to form a multi-lobed structure, which can effectively reduce the size of the balloon 4 when it shrinks, so that The balloon 4 is convenient to pass through narrow blood vessels. Another difference from Embodiment 1 is that the surface of the coil 7 is coated with a hydrophilic coating to reduce friction with blood vessels.

[0048] If there is no balloon 4 on the guide wire as a fixation, the OTW-type balloon 4 dilation catheter will not be able to fix the guide wire when it is withdrawn, causing the guide wire to be withdrawn from the body together. It takes a lot of time and effort to reinsert it into the designated position. After the balloon 4 is added on the guide wire, before the balloon 4 of OTW type is withdrawn, the balloon 4 on the guide wire ...

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Abstract

The invention relates to the technical field of guide wire assemblies, in particular to a guide wire. A guide wire comprises a proximal push rod and a flexible tip, wherein the proximal push rod is provided with a balloon, the balloon is sealingly connected with the proximal push rod, the proximal push rod is a hollow structure, an inflation channel for inflating the balloon is arranged in the proximal push rod, and the proximal push rod proximal end forms an inflation port for inflating the balloon. The invention adds a inflatable and contractable balloon to the proximal push rod of the guidewire, as that balloon dilation catheter is evacuate the human body. The balloon can be filled so that the fixed position of the guide wire does not move with the withdrawal of the catheter, and the structure of the guide wire and the balloon is combined to solve the inconvenience of replacing the balloon catheter of the integral exchange type, thereby greatly simplifying the operation of the doctor, shortening the operation time and simplifying the procedure of the operation.

Description

technical field [0001] The invention relates to the technical field of guide wire components, in particular to a guide wire. Background technique [0002] Guide wire, 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. In catheter therapy operations, it is as important as the catheter. Balloon dilatation catheter is an important instrument for interventional surgery. The guide wire is a necessary auxiliary device that provides a path and guidance for the balloon dilation catheter to enter the lesion. Without a guide wire, the balloon dilation catheter cannot reach the lesion, nor can it Play its due role, so the guide wire is a prerequisite for balloon dilatation catheter therapy. [0003] Existing balloon dilatation catheters have two structures, one is the RX rapid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/09
CPCA61M25/09A61M2025/09008A61M2025/09133
Inventor 许海峰谭茂彩胡清刘继勇
Owner KOSSEL MEDTECH SUZHOU
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