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    • 4. 发明申请
    • STENT-GRAFT PROSTHESIS AND METHOD OF MANUFACTURE
    • 支架假体及其制造方法
    • WO2017184381A1
    • 2017-10-26
    • PCT/US2017/026958
    • 2017-04-11
    • MEDTRONIC VASCULAR INC.
    • MARROCCO, JosephHAGGARD, MathewPERKINS, Keith
    • A61F2/07A61F2/88
    • A61F2/07A61F2/88A61F2002/072A61F2002/075A61F2210/0076A61F2240/001A61F2250/0067
    • A stent-graft prosthesis includes a generally tubular outer PTFE layer, a generally tubular helical stent, a generally tubular inner PTFE layer, and a suture or fabric support strip. The outer PTFE layer defines an outer layer lumen. The helical stent is disposed within the outer layer lumen and defines a stent lumen. The inner PTFE layer is disposed within the stent lumen and defines an inner layer lumen. The suture includes a suture first end coupled to a stent first end and a suture second end coupled to a stent second end, with the suture disposed between the outer PTFE layer and the inner PTFE layer. Alternatively, the fabric support strip is disposed between the outer and inner PTFE layers. The suture or fabric support strip may include a plurality of sutures or fabric support strips and may be spaced equally around a circumference of the inner PTFE layer.
    • 支架移植物假体包括大致管状的外PTFE层,大致管状的螺旋支架,大致管状的内PTFE层以及缝合线或织物支撑条。 外PTFE层限定了外层内腔。 螺旋形支架设置在外层内腔内并限定支架内腔。 内PTFE层设置在支架内腔内并限定内层内腔。 缝合线包括联接到支架第一端的缝合线第一端和联接到支架第二端的缝合线第二端,缝线布置在外部PTFE层和内部PTFE层之间。 或者,织物支撑条布置在外部和内部PTFE层之间。 缝合线或织物支撑条可以包括多条缝合线或织物支撑条,并且可以围绕内部PTFE层的圆周等距地间隔开。