Matsumae M, Oz M C, Lemole G M
Department of Surgery, Medical Center of Delaware, Wilmington.
J Thorac Cardiovasc Surg. 1990 Nov;100(5):787-92.
A new sutureless intraluminal graft has been developed with a ring made of a coiled, overlapping, stainless steel spring with ratchets in one overlapping end. This graft is flexible during insertion but becomes rigid after proper intraaortic placement as the spool is dilated and the ratchest lock into position. The new graft was implanted in 10 dogs and was evaluated histologically and angiographically at various intervals. No ring dislodgment, aortic rupture, stenosis, or aneurysmal dilation was observed. The flexible component of this graft allows it to be introduced and secured in place easily and provides a technical advantage compared with the clinically used rigid intraluminal graft.
一种新型无缝腔内移植物已被研发出来，它带有一个由盘绕、重叠的不锈钢弹簧制成的环，在一个重叠端带有棘轮。这种移植物在插入过程中是灵活的，但在主动脉内正确放置后会变得刚性，因为线轴被扩张且棘轮锁定到位。这种新型移植物被植入10只狗体内，并在不同时间间隔进行组织学和血管造影评估。未观察到环移位、主动脉破裂、狭窄或动脉瘤扩张。这种移植物的柔性部件使其易于引入并固定到位，与临床使用的刚性腔内移植物相比具有技术优势。
