Prosthetic heart valve having a pair of support rings of dissimilar material
    1.
    发明授权
    Prosthetic heart valve having a pair of support rings of dissimilar material 失效
    具有支撑环的DISSIMILAR材料的前置心脏瓣膜

    公开(公告)号:US3691567A

    公开(公告)日:1972-09-19

    申请号:US3691567D

    申请日:1971-05-07

    Inventor: CROMIE HARRY W

    CPC classification number: A61F2/2409 A61F2/2424 Y10T137/7909 Y10T137/791

    Abstract: A prosthetic heart valve having an inner support ring of rigid non-thrombogenic material and a malleable metallic outer support ring positioned about the periphery of the inner ring and bent into the immovable clamping relationship therewith. A portion of a tubular fabric member is retained between the two clamped rings, and the remainder of the fabric member is folded into a plurality of layers about the periphery of the outer ring to form a suturing site. Typically, the outer ring carries an outwardly extending flange on one side, which is overlaid by a single thickness of the tubular fabric, to hold the multiple layer suturing site away from the orifice of the inner ring.

    Abstract translation: 一种假体心脏瓣膜,其具有刚性非血栓形成材料的内支撑环和围绕内环的周边定位且弯曲成与其不可动的夹紧关系的可延展的金属外支撑环。 管状织物部件的一部分保持在两个夹紧环之间,并且织物部件的其余部分围绕外环的周边折叠成多个层以形成缝合部位。 通常,外环在一侧承载向外延伸的凸缘,该凸缘由管状织物的单一厚度覆盖,以将多层缝合部位保持在远离内圈孔口的位置。

    PROSTHETIC HEART VALVE HAVING A PAIR OF SUPPORT RINGS OF DISSIMILAR MATERIAL

    公开(公告)号:CA996304A

    公开(公告)日:1976-09-07

    申请号:CA137037

    申请日:1972-03-14

    Inventor: CROMIE HARRY W

    Abstract: A prosthetic heart valve having an inner support ring of rigid non-thrombogenic material and a malleable metallic outer support ring positioned about the periphery of the inner ring and bent into the immovable clamping relationship therewith. A portion of a tubular fabric member is retained between the two clamped rings, and the remainder of the fabric member is folded into a plurality of layers about the periphery of the outer ring to form a suturing site. Typically, the outer ring carries an outwardly extending flange on one side, which is overlaid by a single thickness of the tubular fabric, to hold the multiple layer suturing site away from the orifice of the inner ring.

    PROSTHETIC HEART VALVE HAVING FABRIC SUTURING ELEMENT

    公开(公告)号:CA945704A

    公开(公告)日:1974-04-23

    申请号:CA125028

    申请日:1971-10-13

    Abstract: A prosthetic heart valve is disclosed having a support ring which carries means for retaining a movable closure element in positions adjacent one side of the ring. The support ring has a fabric wrapping which defines, as a suturing element, an annular protrusion of fabric of double thickness extending from the side of the ring which is opposite the side adjacent the closure element.

    MULTIPLE PIECE CLAMP FOR CONNECTING TUBING

    公开(公告)号:CA945584A

    公开(公告)日:1974-04-16

    申请号:CA133310

    申请日:1972-01-27

    Inventor: CROMIE HARRY W

    Abstract: A clamp for securely holding ends of tubing together in end-to-end relationship is disclosed, in which the tubing so held carries a flange about its end. The clamp comprises four separable sections of identical shape, in which each section has means for locking together with another section to form two identical clamp halves. Each clamp half defines a bore to receive and hold tubing. The bore has an enlarged portion to receive and hold the tuning flange. Each clamp half also defines arms and slots positioned so that the arms of each clamp half are capable of engaging the slots of the other clamp half to secure the two halves together with the tuning ends mounted in each clamp half being secured together in end-to-end relationship.

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