Optical fiber coupled catheter system for transcatheter material output and photochemical reactions

Abstract

The invention discloses an optical fiber coupling catheter system for catheter material output and photochemical reaction, which comprises a catheter main body, one end of the catheter main body is connected with a coupling tailstock, the interior of the catheter main body comprises a material cavity, an optical fiber light path, a sheath liquid cavity and a support wire, and an optical fiber is introduced into the optical fiber light path; the head end of the catheter body is provided with a single-cavity channel, and the material cavity, the optical fiber, the sheath fluid cavity and the supporting wire are all led into the single-cavity channel. According to the device, the functions of conveying hydrogel containing a contrast agent through the catheter and carrying out photocuring in a single-cavity channel can be achieved, meanwhile, input of three kinds of energy or substances including light, materials and sheath fluid is provided with independent channels, intersection and action are carried out in the single-cavity channel at the head end in the catheter body, the conveying process is safe and free of interference, and the conveying efficiency is improved. The functional hydrogel is efficiently conveyed to a focus part, and meanwhile, stimulation conditions can be applied before the hydrogel is in contact with the surface of focus tissue, so that the dual-curing effects of material ion coordination and photo-crosslinking are achieved.

Description

technical field [0001] The present invention relates to the technical field of medical devices, in particular to a fiber-coupled catheter system for transcatheter material output and photochemical reactions. Background technique [0002] Aneurysm is a common vascular malformation disease. Due to the lesion or injury of the arterial wall, the thin-walled blood vessels form local or diffuse expansion and expansion under the impact of blood flow, resulting in vascular malformation, bleb-like and swollen vascular wall-like appearance. Once the aneurysm ruptures, the mortality rate is greater than 40%. Intracranial aneurysm bleeding is even more difficult to treat, and many patients experience sudden physical abnormalities or even sudden death. Structurally, aneurysms can be divided into saccular aneurysms, fusiform aneurysms, dissecting aneurysms, and irregular aneurysms. Treatment of aneurysms is usually performed by minimally invasive endovascular embolization, a procedure i...

AI Technical Summary

Problems solved by technology

However, there is a lack of a catheter system that works with multifunctional biological hydrogels. The fiber-optic coupling catheter system protected by this patent is designed to efficiently deliver functional hydrogels to the lesion site, and at the same time, it can apply stimulation conditions before the hydrogel contacts the surface of the lesion tissue Realize the dual curing effect of material ion coordination and photocrosslinking

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