Branched covered stent for femoral artery bifurcation

Abstract

The invention discloses a branched covered stent for femoral artery bifurcation. The branched covered stent comprises a deep femoral artery, a superficial femoral artery, a main body stent, a hole anda leg separating stent, the deep femoral artery is connected with the superficial femoral artery, the main body stent is arranged on the surface of the superficial femoral artery, and the hole is formed in the main body stent. Through mutual cooperation of the deep femoral artery, the superficial femoral artery, the main body stent, the hole and the leg separating stent, during implantation, first, two guide wires are placed into the superficial femoral artery and the deep femoral artery correspondingly, the main body stent is placed and released along the guide wire entering the superficialfemoral artery, and the guide wire of the deep femoral artery is used for enabling the hole of the main body stent to be aligned with an opening of the deep femoral artery; the leg separating stent isplaced into the deep femoral artery along the guide wire placed into the deep femoral artery and then released, finally, the leg separating stent and the main body stent are sequentially expanded through a balloon to enable the stents to be tightly attached, the effects of replacing an original injured artery and recovering blood supply are achieved, and the branched covered stent has the advantages of being minimally invasive, short in surgery time, simple in surgery process and good in surgery effect.

Description

technical field [0001] The invention relates to the technical field of covered stents, in particular to a branched covered stent for femoral artery bifurcations. Background technique [0002] Femoral artery injury is often combined with fracture, dislocation, nerve injury, hemorrhage, and skin defect. Severe femoral artery injury may lead to hemorrhagic shock or even death due to hemorrhage. This situation is mainly seen in traffic accidents and sharp instrument injuries in addition to war injuries. iatrogenic injury. Correct and timely diagnosis, first aid and selection of effective surgical methods are extremely important for the treatment and prognosis of patients. [0003] In the past, the surgical treatment methods were incision and suturing of the femoral artery, and open surgery of autologous great saphenous vein graft or artificial blood vessel repair of the femoral artery. However, with the rapid development of endovascular interventional technology, endovascular ...

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Problems solved by technology

[0004] But at present, for the arterial injury at the femoral artery bifurcation, since the existing femoral artery covered stent has no branches, a single vertical stent will often cover the deep femoral artery when it is implanted into the superficial femoral artery, causing deep femoral artery damage. Ischemia in the supply area, the effect is not ideal, which is also the key to restricting endovascular surgery for femoral artery bifurcation injuries

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