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Medical guiding wire with insulating coating layer and manufacturing method of medical guiding wire

An insulating coating and manufacturing method technology, applied in the field of medical devices, can solve the problems of guide wires without insulating coating, limited range of use, interlaced knotting of catheters, etc., to achieve smooth introduction, low manufacturing cost, and product qualification rate Improved effect

Active Publication Date: 2014-09-03
珠海金导医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the medical guide wires are of single-wire structure, such as the Chinese patent (200620107266.7). During the operation, the existing medical guide wires are easy to break through some important human tissues, such as blood vessels, due to their high hardness and poor elasticity. In addition, it is easy to cause the catheter to be staggered, knotted or bent or broken when it penetrates into the human body, which will affect the normal operation; there is also no insulating coating in the existing guide wire, and conductive metal materials cannot be used in some operations. personal, so the range of use is limited
In addition, the guide wire metal itself contains some trace elements, such as nickel, which has certain toxicity. If it comes into direct contact with human tissue, it will be deposited in human tissue, endangering human health.

Method used

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  • Medical guiding wire with insulating coating layer and manufacturing method of medical guiding wire
  • Medical guiding wire with insulating coating layer and manufacturing method of medical guiding wire
  • Medical guiding wire with insulating coating layer and manufacturing method of medical guiding wire

Examples

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no. 1 approach

[0071] see figure 1 , figure 2 , Figure 5 As shown, it is a medical guide wire with an insulating coating provided by the embodiment of the present invention. The medical guide wire 100 includes: a core wire, which is made of a metal material and made of a flexible linear body; its head 11 is curved shape, the diameter of the front end 111 of the head 11 gradually increases along the direction of the rear end 112, making the head 11 more flexible relative to the middle part 12 of the core wire; the tail 13 is straight, and the diameter of the end 131 of the tail 13 is along the The direction of the secondary end 112 gradually becomes larger, so that the tail portion 13 is more flexible relative to the middle portion 12 of the core wire; the integral elastic body 2 is made of a metal material in the shape of a coil spring, and the core wire is placed in the elastic body 2 cavity and supports the elastic body 2, the front end 111 and the end 131 are affixed to both ends of t...

no. 2 approach

[0089] see Image 6 , Figure 7 , Figure 8 , Figure 9 , which is a medical guide wire with an insulating coating provided by the embodiment of the present invention. The general structure and manufacturing method of the medical guide wire 200 are the same as those in the first example, and the same parts will not be described again; The difference is that it has two heads 210 and 220; both are curved.

[0090] On the basis of the full description of the first embodiment, in the second embodiment, the materials of the core wire 202 and the elastic body can be changed to 316 or MP35N metal steel wire or nickel-titanium alloy, etc. The length and diameter of the core wire 202 and the elastic body can also be adjusted according to needs; the following is an explanation that can be adjusted flexibly, and further detailed description, the core wire used for the core wire is made A, and the grinder used in the core wire manufacturing step 2 is a centerless grinder , the diamete...

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Abstract

The invention discloses a medical guiding wire with an insulating coating layer and a manufacturing method of the medical guiding wire. The medical guiding wire comprises a core wire and the surface insulating coating layer which is placed in an elastic body to enable the elastic body to be formed on an elastic body 2. The medical guiding wire with the insulating coating layer is provided with the elastic body, when the medical guiding wire is guided into a human body, good elasticity is achieved, staggering and knotting or breaking cannot happen easily, and damage on the human body during an operation process is lowered. Flexible selecting can be carried out in different operations, and the application range is wide. The insulating coating layer effectively prevents the metal guiding wire from being in direct contact with the human body tissue, and some toxic elements of metal materials are effectively prevented from being deposited in the human body tissue. The manufacturing method of the medical guiding wire with the insulating coating layer has the advantages of being simple in technology, stable in performance, high in yield and low in manufacturing cost, a manufacturing process is easy to grasp and control, energy is saved, and pollution is avoided.

Description

【Technical field】 [0001] The invention relates to the field of medical devices, in particular to a medical guide wire with an insulating coating and a manufacturing method thereof. 【Background technique】 [0002] At present, most of the medical guide wires are of single-wire structure, such as the Chinese patent (200620107266.7). Due to the high hardness and poor elasticity of the existing medical guide wires during the operation, it is easy to cause some important human tissues, such as blood vessels, to be punctured, increasing the number of operations. In addition, it is easy to cause the catheter to be staggered, knotted, bent or broken when it penetrates into the human body, which will affect the normal operation; there is also no insulating coating in the existing guide wire, and conductive metal materials cannot be used in some operations. Personal, so the scope of use is limited. In addition, the guide wire metal itself contains some trace elements, such as nickel, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/09
Inventor 陈世斌
Owner 珠海金导医疗科技有限公司
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