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1. 发明授权

US5305554A Moisture control in vibratory mass finishing systems 失效
标题翻译：振动质量整理系统中的水分控制
公开(公告)号：US5305554A
公开(公告)日：1994-04-26
申请号：US78560
申请日：1993-06-16
申请人： Michael R. Emken , Mark Seeley , David S. Wilde
发明人： Michael R. Emken , Mark Seeley , David S. Wilde
IPC分类号： B24B31/06 , B24B31/12 , B24B57/02
CPC分类号： B24B57/02 , B24B31/06 , B24B31/12
摘要： A "closed-loop" moisture control system for use in vibratory mass finishing systems. A substantially constant amount of a grinding and/or polishing slurry is maintained in a finishing reservoir of the vibratory mass finishing system by controlling the amount of such fluid flowing from a supply reservoir into the finishing reservoir, and/or the amount of such fluid flowing from the finishing reservoir into a collection reservoir. In operation, a total weight of the supply reservoir and its contents, and of the collection reservoir and its contents is monitored and, in the event there is an increase in the total weight, a control means increases the amount of polishing fluid flowing from the supply reservoir into the finishing reservoir, and/or decreases the amount of polishing fluid flowing from the finishing reservoir into the collection reservoir. Conversely, in the event there is a decrease in the total weight, the control means decreases the amount of polishing fluid flowing from the supply reservoir into the finishing reservoir, and/or increases the amount of polishing fluid flowing from the finishing reservoir into the collection reservoir.
摘要翻译：一种用于振动质量整理系统的“闭环”湿度控制系统。通过控制从供应储存器流入整理储存器中的这种流体的量，和/或这种流体流动的量，将基本恒定量的研磨和/或抛光浆料保持在振动质量整理系统的精加工储存器中从整理水库进入集水库。在操作中，监测供水库及其内容物和收集容器及其内容物的总重量，并且在总重量增加的情况下，控制装置增加从将储存器供应到精加工储存器中，和/或减少从精加工储存器流入收集储存器的抛光流体的量。相反，在总重量减少的情况下，控制装置减少从供应储存器流入精加工储存器的抛光流体的量，和/或增加从精加工储存器流入收集器中的抛光流体的量水库

2. 发明授权

US06410087B1 Deposition of pyrocarbon 有权
标题翻译：热解碳沉积
公开(公告)号：US06410087B1
公开(公告)日：2002-06-25
申请号：US09431520
申请日：1999-11-01
申请人： David S. Wilde , Michael R. Emken , James A. Accuntius
发明人： David S. Wilde , Michael R. Emken , James A. Accuntius
IPC分类号： C23C1600
CPC分类号： C23C16/442
摘要： Pyrolytic carbon of extremely uniform crystalline characteristics and essentially free of discontinuities is obtained in a fluidized bed coater by creating an asymmetric recirculation of the fluidized bed within the high temperature coating chamber. Through the use of any of a variety of gas injection schemes, fluidizing/coating gas mixtures are injected through the three-dimensionally curved concave bottom surface of the coater to create a pattern where the fluidized bed ascends within about one-half of the volume of the coater and then spills over to become a descending bed in the other half.
摘要翻译：通过在高温涂覆室内产生流化床的不对称再循环，在流化床涂布机中获得非常均匀的结晶特性并基本上不含不连续性的热解碳。通过使用各种气体注射方案中的任何一种，流化/涂覆气体混合物通过涂布机的三维弯曲的凹底表面注入，以产生图案，其中流化床在约涂布机，然后在另一半中溢出来成为一个下降的床。

3. 发明授权

US5328713A Precise regulation of fluidized bed weight in pyrolytically coating substrates 失效
标题翻译：热解涂层底物流化床重量的精确调节
公开(公告)号：US5328713A
公开(公告)日：1994-07-12
申请号：US32627
申请日：1993-03-16
申请人： Michael R. Emken , James A. Accuntius , David S. Wilde
发明人： Michael R. Emken , James A. Accuntius , David S. Wilde
IPC分类号： B01J8/24 , B01J19/00 , C23C16/442 , C23C16/52
CPC分类号： B01J8/1809 , B01J19/0006 , C23C16/442 , C23C16/52 , B01J2208/00061 , B01J2208/00407 , B01J2208/00495 , B01J2208/00548 , B01J2208/00619 , B01J2219/00058 , Y10S118/05
摘要： Precise control of pyrocarbon being coated upon an object in a fluidized particle bed is achieved by monitoring the weight change of the fluidized particle bed over a period of time. Measurement of such weight change is truly representative of bed size in such a coater, which is a most important factor in achieving the desired characteristics of the pyrocarbon being deposited. By monitoring the bed size by repeatedly determining such changes in the weight, compensating adjustments are made by either adding additional particles to the bed or by changing the rate at which particles are withdrawn so that precise coating characteristics are achieved, and coatings can be deposited within very close thickness tolerances.
摘要翻译：通过在一段时间内监测流化颗粒床的重量变化来实现涂覆在流化颗粒床中的物体上的热解碳的精确控制。这种重量变化的测量确实代表了这种涂布机中的床尺寸，这是实现沉积的热解碳的期望特性的最重要的因素。通过重复地确定重量的这种变化来监测床的尺寸，通过向床中添加额外的颗粒或通过改变颗粒被抽出的速率来进行补偿调节，从而实现精确的涂层特性，并且可以在非常紧密的厚度公差。

4. 发明授权

US5908452A Prosthetic heart valve with improved blood flow 失效
标题翻译：假性心脏瓣膜有改善的血流量
公开(公告)号：US5908452A
公开(公告)日：1999-06-01
申请号：US27358
申请日：1998-02-20
申请人： Jack C. Bokros , John L. Ely , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka , C. Thomas Waits
发明人： Jack C. Bokros , John L. Ely , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka , C. Thomas Waits
IPC分类号： A61F2/00 , A61F2/24
CPC分类号： A61F2/2403 , A61F2/0077 , A61F2310/00161 , A61F2310/00173 , A61F2310/00574 , Y10S623/90
摘要： A prosthetic heart valve is shown which incorporates a valve body design and leaflet pivot arrangements that minimize turbulence and shear stresses having a tendency to generate thrombosis. A valve body having an axially curved entrance that is smoothly joined to a generally cylindrical body of extended axial length provides excellent fluid flow characteristics when combined with leaflets that can assume orientations perfectly aligned with the downstream flow of blood. By constructing such a pyrocarbon valve body which receives a metal ring at an appropriate location, suture rings that permit the tissue annulus to directly contact the exterior surface of the cylindrical valve body are accommodated.
摘要翻译：示出了一种假体心脏瓣膜，其包括阀体设计和小叶枢轴布置，其使具有产生血栓形成倾向的湍流和剪切应力最小化。具有平滑地连接到延伸轴向长度的大致圆柱形主体的轴向弯曲入口的阀体当与能够呈现与下游血液流完全对准的方向的叶片组合时提供优异的流体流动特性。通过构造这样一个在合适的位置接收金属环的热解碳体阀体，容纳了允许组织环直接接触圆柱形阀体的外表面的缝合环。

5. 发明授权

US5677061A Pyrocarbon and process for depositing pyrocarbon coatings 失效
标题翻译：焦碳和沉积焦碳涂层的方法
公开(公告)号：US5677061A
公开(公告)日：1997-10-14
申请号：US587320
申请日：1996-01-16
申请人： John L. Ely , Axel D. Haubold , Michael R. Emken , James A. Accuntius
发明人： John L. Ely , Axel D. Haubold , Michael R. Emken , James A. Accuntius
IPC分类号： A61F2/00 , A61L27/30 , C23C16/26 , C23C16/442 , B32B9/00 , C01B31/00
CPC分类号： C23C16/26 , A61L27/303 , C23C16/442 , A61F2310/00574 , Y10T428/2991 , Y10T428/30
摘要： Pure unalloyed pyrocarbons having wear resistance suitable for use in pyrocarbon-coated heart valve components and having mechanical properties, such as flexural strength and toughness, superior to commercial silicon-alloyed pyrocarbons are deposited in fluidized bed coaters. Coating conditions are carefully controlled so as to maintain a precise bed size within a defined coating enclosure which will assure a substantially constant surface deposition temperature that in turn assures deposition of homogenous unalloyed pyrocarbons having these improved mechanical properties.
摘要翻译：具有适合用于热解碳涂层的心脏瓣膜部件并且具有优于商业硅合金热解碳的机械性能如弯曲强度和韧性的耐磨性的纯非合金热解碳沉积在流化床涂布机中。仔细地控制涂覆条件，以便在限定的涂层外壳内保持精确的床尺寸，这将确保基本上恒定的表面沉积温度，从而确保具有这些改进的机械性能的均匀非合金热解碳的沉积。

6. 发明授权

US5545216A Prosthetic heart valve 失效
标题翻译：假心脏瓣膜
公开(公告)号：US5545216A
公开(公告)日：1996-08-13
申请号：US441791
申请日：1995-05-16
申请人： Jack C. Bokros , John L. Ely , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka , C. Thomas Waits
发明人： Jack C. Bokros , John L. Ely , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka , C. Thomas Waits
IPC分类号： A61F2/00 , A61F2/24
CPC分类号： A61F2/2403 , A61F2/0077 , A61F2310/00161 , A61F2310/00173 , A61F2310/00574
摘要： A bileaflet heart valve is shown which incorporates a pivot arrangement that minimizes resistance to downstream blood flow in the open position yet has prompt response and therefore minimal regurgitation upon flow reversal. The valve employs a pair of identical flat leaflets that can assume a precisely parallel orientation in the fully open position at or near peak downstream blood flow or can alternatively assume other low energy positions. As the downstream flow of blood slows near the end of a pumping stroke, downstream displacement of the leaflets results in their prerotation toward the closed position orientation, all being controlled by the interengagement of flat ears, which extend laterally from opposite surfaces of the leaflets, and receiving cavities of unique design. The cavities include upstream and downstream lobes separated by an intermediate throat portion defined by inward and outward fulcrums. As soon as reverse flow begins, upstream displacement of the leaflets causes the ears to contact straight camming surfaces located upstream of the outward fulcrums which, in combination with the fulcrums and a downwardly directed, concave surface at the upstream end of the upstream lobe, positively guide each leaflet through efficient closing which ends in substantially rotational movement.
摘要翻译：显示了一种双轨心脏瓣膜，其包括枢转装置，其使得在打开位置中对下游血流的抵抗力最小化，但是具有迅速的反应并且因此在流动反转时具有最小的反流。该阀采用一对相同的平面小叶，其可在靠近血液下游血流处或其附近的完全打开位置呈现精确平行的取向，或者可以采取其它低能量位置。随着下游血液流动在泵送冲程结束时减慢，小叶的下游位移导致其朝向关闭位置取向的预旋转，全部由通过相对于传单的相对表面横向延伸的平耳的相互接合来控制，并接收独特设计的腔体。空腔包括由内向和向外的支点限定的中间喉部分隔开的上游叶和下游叶。一旦反向流动开始，小叶的上游位移将使耳朵接触位于外侧支点上游的直接凸轮表面，该支撑点与上游叶的上游端的支点和向下指向的凹面结合，呈正向通过高效关闭来引导每个小叶，其基本上旋转运动结束。

7. 发明授权

US5376111A Heart valve prostheses 失效
标题翻译：心脏瓣膜假体
公开(公告)号：US5376111A
公开(公告)日：1994-12-27
申请号：US919284
申请日：1992-07-24
申请人： Jack C. Bokros , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka
发明人： Jack C. Bokros , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka
IPC分类号： A61F2/24
CPC分类号： A61F2/2403 , A61F2/2409
摘要： Mechanical heart valve prostheses having either a single occluder or a pair of occluders are designed to permit such occluders to assume an open position parallel to the longitudinal axis of the valve passageway. The pivot arrangements are such that an occluder pivots about a constant center or pivot axis substantially offset from the locations where engagement occurs between the occluder and the valve body, whereby prompt smooth pivoting movement toward the closed position is initiated from an open position parallel to the valve centerline. For example, elongated arcuate shoes protruding from lateral edges of the occluders follow arcuate paths of matching complementary curvature defined by grooves in diametrically opposed flat sidewall sections of the valve body.
摘要翻译：具有单个封堵器或一对闭塞器的机械心脏瓣膜假体被设计成允许这种闭塞器呈现平行于阀通道的纵向轴线的打开位置。枢转装置使得闭塞器围绕恒定的中心枢转轴线或枢转轴线枢转，所述恒定的中心或枢转轴线基本上偏离封闭器和阀体之间的接合位置，从而从平行于闭合位置的打开位置开始向闭合位置的即时平滑枢转运动阀门中心线。例如，从闭塞器的侧边缘突出的细长弓形鞋跟随由阀体的直径相对的平坦侧壁部分中的槽限定的匹配互补曲率的弧形路径。

8. 发明授权

US5308361A Prosthetic heart valve 失效
标题翻译：假心脏瓣膜
公开(公告)号：US5308361A
公开(公告)日：1994-05-03
申请号：US951680
申请日：1992-09-25
申请人： Jack C. Bokros , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka
发明人： Jack C. Bokros , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka
IPC分类号： A61F2/24
CPC分类号： A61F2/2409 , A61F2/2403 , Y10T137/7898
摘要： Bi-leaflet heart valves have valve body contours and pivot arrangements that create quick valve response to flow reversal. Valve members or leaflets, which can have flat or curved inflow and outflow surfaces, are slidably and pivotally mounted in a heart valve body of contoured profile so they can be aligned precisely parallel to blood flow in the open position. The leaflets engage either projections extending radially inward from flat wall sections in the valve body sidewall or grooves in these flat wall sections. The shape and relationship of these interengaging surfaces, together with a centrally directed surge of backflowing blood which results from the strategic location of a pair of downstream recesses in the annular valve body, cooperate to provide prompt closing rotation of the leaflets from a parallel open orientation.
摘要翻译：双瓣心脏瓣膜具有阀体轮廓和枢轴布置，可以对流动反转产生快速的阀响应。可以具有平坦或弯曲的流入和流出表面的阀构件或小叶片可滑动地且可枢转地安装在轮廓轮廓的心脏瓣膜体中，使得它们可以在打开位置上精确地平行于血流平行地对准。叶片接合从阀体侧壁中的平壁部分或这些平壁部分中的凹槽径向向内延伸的突起。这些相互接合的表面的形状和关系以及由环形阀体中的一对下游凹槽的战略位置产生的中心定向的回流血流的协同作用，以提供小叶从平行开放取向的快速闭合旋转。

9. 发明授权

US5641324A Prosthetic heart valve 失效
标题翻译：假心脏瓣膜
公开(公告)号：US5641324A
公开(公告)日：1997-06-24
申请号：US589864
申请日：1996-01-23
申请人： Jack C. Bokros , John L. Ely , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka , C. Thomas Waits
发明人： Jack C. Bokros , John L. Ely , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka , C. Thomas Waits
IPC分类号： A61F2/00 , A61F2/24
CPC分类号： A61F2/2403 , A61F2/0077 , A61F2310/00161 , A61F2310/00173 , A61F2310/00574
摘要： A bileaflet heart valve incorporates a pivot arrangement that minimizes resistance to downstream blood flow in the open position yet has prompt response and therefore minimal regurgitation upon flow reversal. A valve body having an axially curved entrance that smoothly joins a generally cylindrical body of extended axial length provides excellent fluid flow characteristics when combined with leaflets that can assume orientations perfectly aligned with the downstream flow of blood. Identical flat leaflets can assume a parallel orientation in the fully open position during downstream blood flow or can assume other low energy positions. Flat ears, which extend laterally from opposite surfaces of the leaflets, interengage with cavities of unique design having upstream and downstream lobes separated by an intermediate throat portion defined by inward and outward fulcrums. The downstream lobes may be designed to facilitate movement to the parallel orientation or to cause the leaflets to optionally prerotate toward the closed position. As soon as reverse flow begins, upstream displacement of the leaflets causes the ears to contact straight camming surfaces located upstream of the outward fulcrums which, in combination with the fulcrums and a downwardly directed, concave surface at the upstream end of the upstream lobe, positively guide each leaflet through efficient closing which ends in substantially rotational movement. A pyrocarbon valve body receives suture rings that permit the tissue annulus to directly contact an exterior surface region of the valve body.
摘要翻译：双流心脏瓣膜包括枢轴装置，其使得在打开位置中对下游血流的抵抗力最小化，但具有迅速的反应，因此在流动反转时具有最小的反流。具有平滑地连接延伸轴向长度的大致圆柱形主体的轴向弯曲入口的阀体当与能够呈现与下游血液流完全对准的方向的叶片组合时提供优异的流体流动特性。相同的扁平小叶可以在下游血流期间在完全打开位置呈现平行取向，或者可以采取其他低能量位置。平面耳朵从小叶的相对表面横向延伸，与独特设计的空腔相互联系，具有由内向和向外支点限定的中间喉部分隔的上游和下游叶片。下游叶片可以被设计成便于移动到平行取向或使得小叶可选择性地朝向关闭位置旋转。一旦反向流动开始，小叶的上游位移将使耳朵接触位于外侧支点上游的直接凸轮表面，该支撑点与上游叶的上游端的支点和向下指向的凹面结合，呈正向通过高效关闭来引导每个小叶，其基本上旋转运动结束。热碳体阀体接收缝合环，其允许组织环直接接触阀体的外表面区域。

10. 发明授权

US5236451A Prosthetic heart valve 失效
标题翻译：假心脏瓣膜
公开(公告)号：US5236451A
公开(公告)日：1993-08-17
申请号：US914206
申请日：1992-07-14
申请人： Jack C. Bokros , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka
发明人： Jack C. Bokros , Michael R. Emken , Axel D. Haubold , T. Scott Peters , Jonathan C. Stupka
IPC分类号： A61F2/24
CPC分类号： A61F2/2403 , Y10T137/7875 , Y10T137/7898
摘要： Bi-leaflet heart valves have improved flow characteristics in their open position as a result of employing valve bodies of elongated axial dimension. By elongating the axial dimension of valve bodies which have straight, smooth interior wall surfaces oriented parallel to the centerline through the valve and to the flow path of blood, and by employing a pair of occluders which have major surfaces that are rectilinear and can assume an orientation that is substantially parallel to the centerline in the open position, a streamlining of blood flow occurs. The pivot arrangements avoid the use of acute angular surface orientations and cause the occluders, although aligned substantially parallel to blood flow in the open position, to promptly pivot toward the closed position upon reversal of blood flow. This streamlining substantially reduces turbulence and results in low head loss, both significant advantages in bi-leaflet heart valve performance.
摘要翻译：由于采用细长轴向尺寸的阀体，双瓣心脏瓣膜在其打开位置具有改善的流动特性。通过延长具有平行于中心线的直线，平滑的内壁表面的阀体的轴向尺寸，通过阀和血液的流动路径，并且通过使用一对闭塞器，其具有直线的主表面并且可以呈现取向基本上平行于打开位置的中心线，发生血流的精简。枢转装置避免使用急性角度表面取向并且使闭塞器虽然基本上平行于处于打开位置的血流排列，但是在血液流动反向时能够迅速地向闭合位置枢转。这种精简大大减少湍流并导致低头损失，双瓣心脏瓣膜性能的显着优点。

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