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Vascular optical fiber guide wire

A technology of guide wire and optical fiber, applied in the field of medical devices, can solve the problems such as the inability of the catheter guide wire to transmit light energy and the inability of the guide wire to reach the body, etc., and achieve the effects of improving blood compatibility, increasing strength, and improving toughness and strength.

Inactive Publication Date: 2017-03-22
尚华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of Seldinger arterial cannulation technology that the catheter guide wire cannot transmit light energy, and photodynamic therapy cannot reach the lesion in the body, the purpose of the present invention is to provide a vascular optical fiber guide wire, which enters the body through the blood vessel, and The introduction and extraction of light to the lesion site overcomes the problems that the guide wire cannot guide the light and the photodynamic therapy cannot reach the body

Method used

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  • Vascular optical fiber guide wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1~2 As shown, a vascular optical fiber guide wire, the optical fiber guide wire 10 includes an optical fiber core wire, a wire wrapping layer 13 wrapped around the periphery of the optical fiber core wire, and a coating on the periphery of the wrapping wire layer 13 Hydrophilic coating 14;

[0038] The optical fiber core wire is arranged at the axial center of the optical fiber guide wire 10, and the optical fiber core wire includes a core 11 (that is, an optical fiber) for guiding light and a cladding 12 coated on the periphery of the core 11, and the core 11 For single mode core or multimode core. The material of the fiber core 11 is at least one of a quartz fiber core, a polymer fiber core or a metal hollow fiber core. The optical conductivity of the cladding 12 is smaller than that of the core 11 , therefore, the cladding 12 has a certain binding force on the light in the core 11 .

[0039] The wrapping layer 13 is composed of at least one wrappin...

Embodiment 2

[0049] Such as Figure 5 As shown, the number of optical fiber core wires in Embodiment 1 can be two or more arranged side by side at the axis of the optical fiber guide wire 10, and the optical fiber core wires include a core 11 and a coating coated on the periphery of each core 11. The cladding layer 12 and the wrapping filaments in the wrapping filament layer 13 are wrapped around the periphery of all optical fiber core filaments to improve their toughness and strength. The optical conductivity of the cladding 12 is smaller than that of the core 11 , therefore, the cladding 12 has a certain binding force on the light in the core 11 .

[0050] If the fiber guide wire 10 contains multiple cores 11, the cores 11 may simultaneously include a first core capable of introducing light and a second core capable of exporting light, that is, in the case of multiple cores 11 , one / multiple fiber cores can be used to import light, and one / multiple fiber cores can be used to export ligh...

Embodiment 3

[0053] On the basis of Example 1, such as Figure 6 As shown, the winding method of the winding wire 131 can be a metal or non-metal winding wire with a diameter of tens of micrometers in order to helically wrap around the periphery of the optical fiber core wire in a closely arranged manner. Such as Figure 7 As shown, the wrapping wire 131 can also be wound around the periphery of the optical fiber core by two wrapping wires 131 , and the two wrapping wires 131 are wound by braiding to form a wrapping layer 13 composed of two layers of wrapping wires 131 . Of course, multiple metal / non-metal winding wires can also be wound in this way. Such as Figure 8 As shown, the above-mentioned wrapping wire 131 can also be a wrapping sheet, and the wrapping sheet is wrapped around the periphery of the optical fiber core. Wound sheets can also be wrapped in metal tubes / films by cutting to form soft structures, such as hypotubes. Of course, the winding methods of the winding wire or ...

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Abstract

The invention relates to a vascular optical fiber guide wire. The vascular optical fiber guide wire comprises at least one optical fiber core wire, a wire winding layer and a hydrophilic coating capable of improving body fluid compatibility and reducing resistance, wherein the optical fiber core wire is arranged at an axial position of the optical fiber guide wire; the wire winding layer is composed of at least one winding wire or winding piece which coats and surrounds the optical fiber core wire; and the hydrophilic coating is painted on the periphery of the wire winding layer. The vascular optical fiber guide wire can enter an artery blood vessel of a human body to arrive at a predetermined position, and lead light into and / or out of a lesion part to realize photodynamic therapy for in-vivo tumors and the like, so as to satisfy the diagnosis and treatment needs in biological, medical fields and the like.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a vascular fiber optic guide wire that can enter the human body through arteries and other blood vessels to realize the treatment of diseases such as photodynamic tumors. 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 ...

Claims

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Application Information

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IPC IPC(8): A61N5/06
CPCA61N5/0603A61N5/062A61N2005/063
Inventor 尚华吕新杰赵永平王智文
Owner 尚华
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