-
公开(公告)号：US5279612A
公开(公告)日：1994-01-18
申请号：US741215
申请日：1991-08-02
申请人： Carol E. Eberhardt
发明人： Carol E. Eberhardt
CPC分类号： A01N1/0221 , A01N1/02 , A01N1/0247 , A61F2/2415 , Y10S623/91 , Y10S623/922
摘要： A method of preserving porcine heart valves so that they may be incorporated into prosthetic heart valves for human implant. During fixation, the leaflets of the valves are repeatedly flexed throughout their full range of motion. Flexing of the leaflets continues throughout fixation, and is accomplished by providing for alternating fluid flow through the valve from the inflow and outflow sides sufficient to cause the leaflets to fully open and close.
摘要翻译： 一种保存猪心脏瓣膜的方法，使得它们可以并入用于人类植入物的假体心脏瓣膜中。 在固定期间，瓣膜的小叶在其整个运动范围内被重复弯曲。 叶片的弯曲在整个固定过程中延续，并且通过使来自流入侧和流出侧的交替流体流动通过阀足以使传单完全打开和关闭来实现。
-
公开(公告)号：US4575442A
公开(公告)日：1986-03-11
申请号：US565142
申请日：1983-12-23
CPC分类号： B29C41/14 , A61F2/2415 , A61L27/18
摘要： A heart valve is to remain with a homogenic and smooth configuration whereby particularly unevennesses tending to form loci for depositions are to be avoided. The method is basically comprised of separately forming the flap vanes through multiple coatings and the valve case is separately made but combined with the flap vane through a common coating procedure to obtain smooth transition surfaces.
摘要翻译： 心脏瓣膜将保持同质且平滑的结构，从而避免趋于形成用于沉积的位点的不均匀性。 该方法主要包括通过多个涂层单独地形成翼片叶片，并且阀壳体分开制造，但通过常见的涂覆程序与翼片叶片组合以获得平滑的过渡表面。
-
公开(公告)号：US4506394A
公开(公告)日：1985-03-26
申请号：US457514
申请日：1983-01-13
申请人： Pierre Bedard
发明人： Pierre Bedard
CPC分类号： A61F2/2409 , A61F2/2412
摘要： An implantable device which is suited for implantation into a human or animal heart for receiving and removably holding a valve prosthesis is described. The device comprises a ring structure which is adapted to be fixed to the tissue around the orifice of a heart valve after excision of the diseased or damaged natural valve has been effected. In use, the ring structure is fixed in place and then the appropriate valve prosthesis is attached to the ring. When the valve prosthesis fails and has to be replaced with a new prosthesis, the damaged prosthesis can be detached from the ring allowing a replacement prosthesis to be fixed to the ring without affecting the connection between ring structure and tissue.
摘要翻译： 描述了适于植入人或动物心脏以便接收和可移除地保持阀门假体的可植入装置。 该装置包括环形结构，其适于在已经实施了患病或损坏的自然瓣膜的切除之后固定到心脏瓣膜的孔周围的组织。 在使用中，环结构固定就位，然后将适当的瓣膜假体附接到环上。 当瓣膜假体失效并且必须用新的假体替换时，损伤的假体可以从环分离，允许将替换假体固定到环上，而不影响环结构和组织之间的连接。
-
公开(公告)号：US4451936A
公开(公告)日：1984-06-05
申请号：US332544
申请日：1981-12-21
申请人： Alain Carpentier , Ernest Lane
发明人： Alain Carpentier , Ernest Lane
CPC分类号： A61F2/2412
摘要： An aortic prosthetic valve for supra-annular implantation comprising a valve body of generally annular configuration and a valve element movably mounted on the valve body for opening and closing the valve. The valve body terminates in a generally annular base surface, and a scalloped suture ring circumscribes the valve body adjacent the base surface. The suture ring is configured to approximately fit the contour of the Sinuses of Valsalva at the base of the aorta. The base surface of the valve body is of a wavy configuration and is configured such that it does not project into the annulus at the base of the aorta, and accordingly, the valve body does not interfere with flow through the annulus. The suture ring has three lobes which fit the Sinuses of Valsalva at the base of the aorta. The valve is configured to minimize disruption of the vortices which develop in the Sinuses of Valsalva to assist in closing the valve.
摘要翻译： 一种用于超环形植入的主动脉瓣假体瓣，其包括大致环形构造的阀体和可移动地安装在阀体上用于打开和关闭阀的阀元件。 阀体终止于大致环形的基座表面，并且扇形缝合环围绕邻近基面的阀体。 缝合环被配置为大致适合Valsalva窦的轮廓在主动脉的基部。 阀体的基面是波浪形状，并且构造成使得其不会突出到主动脉的基部处的环形空间中，因此，阀体不干扰通过环的流动。 缝合环有三个瓣，它们适合于主动脉基部的Valsalva窦。 阀被配置为最小化在Valsalva的窦内形成的涡流的破坏，以帮助关闭阀。
-
5.发明授权
公开(公告)号：US4405327A
公开(公告)日：1983-09-20
申请号：US411190
申请日：1982-08-25
申请人： Elisabeth M. Pollock
发明人： Elisabeth M. Pollock
CPC分类号： A61L27/3687 , A61L2400/02 , Y10S623/915 , Y10S623/916
摘要： Natural tissues fixed with a tanning solution such as glutaraldehyde and intended for implantation in humans, e.g., porcine heart valve prosthetic devices, are treated with a solution of a water soluble quaternary ammonium salt such as dodecyltrimethylammonium chloride to inhibit mineralizaton, particularly calcification, of the tissue after implantation.
摘要翻译： 用鞣制溶液如戊二醛固定并用于植入人体的天然组织，例如猪心脏瓣膜假体装置，用水溶性季铵盐如十二烷基三甲基氯化铵的溶液处理以抑制矿物质的特别是钙化， 植入后组织。
-
公开(公告)号：US4373216A
公开(公告)日：1983-02-15
申请号：US302693
申请日：1981-09-15
申请人： Jerome J. Klawitter
发明人： Jerome J. Klawitter
CPC分类号： A61F2/2403 , Y10T137/7839 , Y10T137/7898 , Y10T137/7903
摘要： Heart valves having valve members which are guided between their open and closed positions by projections extending inward from the annular body and interengaging with complementary notches in the peripheries of the occluders. Protuberances associated with the projections cooperate to define the pivotal axes, serve as open and closed position stops, and retain the valve members within the valve body.
摘要翻译： 具有阀构件的心脏瓣膜通过从环形体向内延伸并与闭塞器周围的互补凹口相互接合的凸起在其打开和关闭位置之间被引导。 与突起相关联的突起协作以限定枢转轴线，用作打开和关闭的位置止挡件，并将阀构件保持在阀体内。
-
公开(公告)号：US4372743A
公开(公告)日：1983-02-08
申请号：US275749
申请日：1981-06-22
申请人： Ernest Lane
发明人： Ernest Lane
CPC分类号： A61F2/2415
摘要： A method of obtaining fixation of an animal aortic valve intended for implantation, including subjecting the aortic valve to a tanning fluid at a differential pressure across the valve leaflets in a direction to urge the valve leaflets closed and with the tanning fluid tending to distort the aortic valve. The differential pressure across the valve leaflets is greater than zero and less than about four mm Hg. An insert restrains the valve against substantial distortion during the time the valve is subjected to the tanning fluid.
摘要翻译： 一种获得用于植入的动物主动脉瓣的固定的方法，包括使主动脉瓣经受瓣膜小叶压差的鞣制流体沿促使瓣膜关闭的方向并且鞣制液趋于扭曲主动脉 阀。 瓣叶上的差压大于零，小于约4 mm Hg。 在阀门经受鞣制液体的时间期间，插入物限制阀门发生大的变形。
-
公开(公告)号：US4343048A
公开(公告)日：1982-08-10
申请号：US175083
申请日：1980-08-04
申请人： Donald N. Ross , Endre Bodnar , William J. Hoskin
发明人： Donald N. Ross , Endre Bodnar , William J. Hoskin
CPC分类号： A61F2/2418 , A61F2230/0013 , A61F2230/0023 , Y10S623/90
摘要： A stent for a cardiac valve comprises a metal base ring having metal legs projecting therefrom in a generally axial direction, each leg being flexible in such a manner that, when the stent has a valve installed therein and the valve is under pressure such as when operating in the heart, each respective leg can resiliently deform over substantially its whole axial length to take up strain in the valve without impairing its performance.
摘要翻译： 用于心脏瓣膜的支架包括金属底座环，金属底座环沿大致轴向从其上突出，每个腿部具有柔性，使得当支架具有安装在其中的阀，并且阀处于压力下，例如当操作时 在心脏中，每个相应的腿可基本上在其整个轴向长度上弹性变形，以在阀中承受应变而不损害其性能。
-
公开(公告)号：US4340977A
公开(公告)日：1982-07-27
申请号：US188817
申请日：1980-09-19
CPC分类号： A61L27/3604 , A61F2/2412 , A61L27/16 , A61L27/18 , A61L27/3641 , A61L27/507 , Y10S623/90 , Y10T137/7882
摘要： Mitral heart valve comprising a stent including a circular base and a pair of upstanding diametrically opposed struts, separating a pair of diametrically opposed arcuately shapes depressed reliefs, each such relief being bounded by a smooth curve interconnecting the struts to the circular base. A flexible, durable, biocompatible covering is secured to the stent and provides two equal opposed preset flappably movable valve cusps secured along the smooth curve defining the perimeter of the reliefs. The valve cusps each are preformed and preset so that the perimeter of the biocompatible covering along the free edge of each of the cusps between the tips of each associated strut is so related to the circumference of the circular base that, when the valve is in its forced open position, the cross-sectional area of the exit is substantially equal to the cross-sectional area of the inside of the circular base. When the valve is in its relaxed and natural position, the shape of the cusps is such that the free edges of the cusps sealingly meet in substantially wrinkle-free form at a line of apposition in the plane defined by the tips of the struts and the axis of the valve and follow the approximate shape of a catenary curve.
摘要翻译： 二尖瓣心脏瓣膜包括支架，其包括圆形基部和一对直立的直径相对的支柱，分离一对径向相对的弧形凹陷凹陷，每个这样的凸起由将支柱连接到圆形基部的平滑曲线界定。 柔性，耐用，生物相容的覆盖物固定到支架上，并提供两个相等的相对的预置可开启的可移动的阀门，其沿着限定浮雕周边的光滑曲线固定。 每个阀门尖被预成型和预设，使得沿着每个相关支柱的尖端之间的每个尖端的自由边缘的生物相容性覆盖物的周边与圆形基底的圆周相关，当阀门处于其中时 强制打开位置，出口的横截面积基本上等于圆形底部内侧的横截面面积。 当阀门处于松弛和自然的位置时，尖端的形状使得尖端的自由边缘以基本上无皱纹的形式在由支柱的尖端和 阀的轴线，并遵循接近曲线的近似形状。
-
公开(公告)号：US4306319A
公开(公告)日：1981-12-22
申请号：US160047
申请日：1980-06-16
申请人： Robert L. Kaster
发明人： Robert L. Kaster
CPC分类号： A61F2/2406 , Y10T137/7898 , Y10T137/7903
摘要： Heart valve including a valve body having a non-circular exterior periphery and a blood flow passage orifice through the valve body having a periphery substantially geometrically similar to the exterior periphery. A rigid occluder having a periphery slightly smaller than the internal periphery of the blood flow passage, pivots within the confines of the blood flow passage. The valve body can assume an oval, egg, kidney, or the like geometrical shape and pivots on an axis parallel or removed from the major axis of the non-circular heart valve body. The occluder pivots about pivot closed pivots and pivot open pivots, guide struts, or a T-shaped pivot post between occluding and non-occluding positions. Stop surfaces all retain the occluder in the occluding position and non-occluding position in the heart valve orifice.
摘要翻译： 心脏瓣膜包括具有非圆形外周边的阀体和通过阀体的血流通道孔，其具有与外周几乎几何相似的外围。 具有比血流通道的内周稍小的周边的刚性封堵器在血流通道的范围内枢转。 阀体可以呈椭圆形，卵形，肾形等几何形状，并且在与非圆形心脏瓣膜体的长轴平行或移开的轴上枢转。 闭塞器关于枢转闭合的枢轴枢转，并且在封闭位置和非闭塞位置之间枢转打开的枢轴，引导支柱或T形枢轴柱。 止动表面都将封堵器保持在心脏瓣膜孔口的闭塞位置和非闭塞位置。
-
-
-
-
-
-
-
-
-
搜索结果
196 条记录 (耗时 0.028 秒)
