Lower limb artery double-cavity balloon negative pressure suction protective umbrella device

Abstract

The invention relates to a lower limb artery double-cavity balloon negative pressure suction protective umbrella device, and belongs to the technical field of medical instruments. Comprising a guide wire, an inner-layer sheathing canal, an inner-layer balloon, an outer-layer membrane sac, an outer-layer sheathing canal and a protective net, an inner-layer sheathing canal is arranged in the outer-layer sheathing canal in a penetrating manner, and a guide wire is arranged in the inner-layer sheathing canal in a penetrating manner; a protective net is arranged at the far end of the guide wire; an inner-layer balloon is arranged between the inner-layer sheathing canal and the outer-layer sheathing canal, and the inner-layer balloon is arranged on the side, close to an operator, of the protective umbrella; an outer-layer membrane bag is arranged on the periphery of the inner-layer balloon; a through hole is formed in the surface of the outer layer membrane bag; and a catheter is arranged on the inner-layer balloon and the outer-layer membrane bag. The surgical operation steps are effectively simplified, the chipping falling risk caused by guide wire exchange is reduced, and the surgical duration is shortened; the blood vessel is repeatedly expanded for many times, a large amount of disintegrating slag is prone to falling off, the pressure of the protective umbrella can be relieved by sucking out turbid blood through negative pressure suction, the blood state in the negative pressure suction bottle can be observed in vitro, and the property and the treatment effect of lesions can be evaluated.

Description

technical field [0001] The invention relates to a lower extremity artery double-cavity balloon negative pressure suction umbrella device, which belongs to the technical field of medical devices. Background technique [0002] Since most arterial occlusive diseases are caused by atherosclerotic plaque or thrombus formation to block blood vessels; in the past, when using interventional methods to treat lower extremity arterial stenosis, especially occlusive diseases, it was often first necessary to use a guide wire to Occluded arteries are unblocked. In the prior art, when carotid artery stenting is performed on patients with carotid artery stenosis, serious adverse events such as stroke caused by debris falling off need to be considered, and relatively mature cerebral blood flow protection devices have been clinically available. The body tissues supplied by the most distal part of the femoro-popliteal artery are the toes and other parts, which have not received enough attenti...

AI Technical Summary

Problems solved by technology

The body tissues supplied by the most distal part of the femoro-popliteal artery are the toes and other parts, which have not received enough attention because they will not cause serious disabling and fatal consequences, and there is also a lack of corresponding lower-limb distal blood flow protection devices in clinical practice.

Conventional umbrella devices need the head end to extend a certain distance from the diseased blood vessel to the distal end, while the arteries of the lower limbs, especially below the knee joint, are significantly thinner than the femoral artery, and the vascular conditions of patients with lower limb arterial stenosis or occlusion are difficult to meet the use of conventional umbrella devices conditions of

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