Multi-guide wire medicine balloon dilation catheter and using method thereof

Abstract

The invention discloses a multi-guide wire medicine balloon dilation catheter and a using method thereof. The dilation catheter comprises a tail end tube, a balloon with a medicine coating on the surface and a catheter body with double channels. A first guide wire can sequentially penetrate through the tail end tube and a first through hole, passes the outer surface of the balloon, and then entersone channel of the catheter body through a second through hole, wherein the ligature of the first through hole and the second through hole is parallel to the axis of the balloon; the dilation catheter further comprises at least one second guide wire, the second guide wires are arranged outside the balloon, and at least extend to the other end from one end of the balloon, and the length of the second guide wires is larger than that of the balloon in a retracted state. In the scheme, with the multiple guide wires, a lesion position can be sufficiently incised, the size is reduced, and the dilation catheter enters the lesion position easily, and meanwhile reduces damage to an internal membrane; the tracing property of the catheter along the guide wires is improved, an overall pushing effectis improved, severe lesion positions can be treated, and the treatment effect is improved since restenosis caused by balloon dilation performed on vessels is effectively prevented in combination withthe medicine coating.

Description

technical field

[0001] The invention relates to the field of medical devices, in particular to a multi-guide wire drug balloon dilatation catheter and a method for using the same. Background technique

[0002] Vascular diseases mainly refer to atherosclerosis, inflammatory vascular diseases, functional vascular diseases, true tumor diseases of blood vessels, etc. Except for true vascular tissue tumors and a few congenital vascular diseases, the basic pathological changes of various vascular diseases, whether organic or functional, are vascular lumen narrowing (organic or spasmodic) or occlusion, making organs (cardiac , brain, kidney, intestinal tract and limbs, etc.) suffering from ischemic changes (acute or chronic). Some vascular diseases present limited expansion as tumor-like lesions. Once the aneurysm is formed, it gradually expands, and most of them have the risk of sudden rupture and death without treatment.

[0003] In recent years, with the rapid development of ...

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