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A New Type of Vascular Optical Fiber Guide Wire

A technology of optical fiber and guide wire, which is used in the medical and optical fields, can solve the problems of inability to carry out human blood vessels, large diameter of scatterers, high processing technology, etc., so as to improve biocompatibility, increase firmness, increase stability and safety effect

Active Publication Date: 2020-07-21
尚华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above methods of forming a beam homogenizer have some disadvantages, including the production of scatterers with special doping concentrations and fiber gratings with graded specifications that require high processing technology, which inevitably leads to an increase in cost; When it is strong, it is easy to cause damage caused by heat absorption, thereby destroying the function of the homogenizer; the diameter of these scatterers is generally large, and it cannot enter the human blood vessels and guide them through the catheter

Method used

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  • A New Type of Vascular Optical Fiber Guide Wire
  • A New Type of Vascular Optical Fiber Guide Wire
  • A New Type of Vascular Optical Fiber Guide Wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Such as figure 1 Shown is the basic principle structure diagram of the present invention. The side-emitting vascular optical fiber guide wire of the present invention includes a light-transmitting part for delivering laser light, and one end of the light-transmitting part (that is, the end that enters the inside of the human body) is connected with a light-emitting part capable of emitting light; the two are connected There are many ways, such as welding, integral molding, detachable connection, etc., and the common connection methods in the prior art are all available, and the optical fiber in the light-transmitting part and the optical fiber in the light-emitting part are combined so that All the light energy is transmitted to the optical fiber of the light-emitting part. The optical fiber is preferably integrally formed, and the light transmission efficiency is high, which can be determined according to the actual situation.

[0076] The light emitting part include...

Embodiment 2

[0088]On the basis of Example 1, when the optical fiber 1 is bent, if the bending radius at the bend is less than a certain value R c (Critical bending radius, the minimum radius at which the cladding can just constrain the light transmitted in the core wire, causing light not to leak out of the sidewall), the cladding will not be able to confine the light transmitted in the core wire, causing light to leak out of the sidewall . The present invention utilizes this principle to form a structure in which the optical fiber surrounds the metal shaft wire, so that the part where the optical fiber guide wire conducts light transmission does not need the side light emitting part, and the rotational pitch of the optical fiber is relatively large, so that the bending radius is much larger than R c , the light cannot be emitted from the cladding, but is confined to the cladding for transmission; and in the area where light needs to be scattered, such as the head of the fiber guide wire,...

Embodiment 3

[0181] On the basis of Embodiment 1 or 2, the other end of the light conducting part 21 (ie, the end outside the body) is connected to the memory alloy plug 22 . The setting of the memory metal plug 22 enables the blood vessel optical fiber guide wire to be connected with other optical fibers for extension, or makes the blood light optical fiber guide wire conveniently connected with a laser to introduce laser light into the light transmission part 21 .

[0182] Such as Figure 9 Shown is a schematic structural view of the vascular optical fiber guide wire with memory alloy plug of the present invention. One end of the light-conducting part 21 is connected to the light-emitting part 20 , and the other end is connected to the memory alloy plug 22 , and its overall shape can be cylindrical or similar to a cylindrical shape.

[0183] Wherein the structure of the light transmission part 21 is as follows Figure 10 As shown, the memory alloy plug 12 is as Figure 11 shown. The ...

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Abstract

The invention discloses a novel blood vessel optical fiber guide wire. It includes a metal shaft wire and an optical fiber surrounding the metal shaft wire; the optical fiber includes a core wire and a cladding surrounding the core wire. In the above-mentioned vascular optical fiber guide wire, in the part where the optical fiber guide wire conducts light transmission, the bending radius of the optical fiber around the metal shaft wire is larger than the critical bending radius; In the region, the bending radius of the optical fiber around the metal shaft wire is smaller than the critical bending radius. The invention can enter blood vessels through percutaneous puncture technology, guide the blood vessels through medical imaging equipment, and perform side-emitting optical fiber guide wires on the head.

Description

technical field [0001] The invention belongs to the fields of medical treatment and optics, and relates to a novel vascular optical fiber guide wire, in particular to a side-emitting vascular optical fiber guide wire. Background technique [0002] At present, Seldinger arterial cannulation technology has been very mature. Under the guidance of clinical imaging medicine (X-ray, CT, MR, B-us, etc.), this technology inserts special catheters, guide wires and other fine instruments into the lesion through percutaneous puncture of blood vessels or the original pores of the human body. Diagnostic imaging and therapy. This technique uses a metal guide wire to percutaneously puncture blood vessels to reach the lesion site. This method is simple to operate, less injurious, and does not require suturing blood vessels. It completely replaces the previous method of surgical incision and exposure of blood vessels, and has become the basic operation technique of modern interventional rad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/067
CPCA61N5/0601A61N2005/0602A61N2005/063A61N2005/0632A61N5/067G02B6/14G02B6/001G02B6/3624A61B2018/2205A61B2018/2222A61M25/09A61M2025/09075A61M2205/0238A61M2205/0266G02B6/4415A61B1/0623A61B1/063A61B1/07A61M2205/587
Inventor 尚华
Owner 尚华