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公开(公告)号：US06872403B2
公开(公告)日：2005-03-29
申请号：US09773293
申请日：2001-01-31
Applicant: David A. Pienkowski , Rodney J. Andrews
Inventor： David A. Pienkowski , Rodney J. Andrews
CPC classification number: A61K6/027 , Y10S977/753 , A61K6/083 , C08L33/00
Abstract: An augmented synthetic resin is provided. That resin includes carbon nanotubes dispersed in a polymethylmethacrylate matrix. The method of preparing this synthetic resin includes the mixing and disaggregating of the carbon nanotubes.
Abstract translation: 提供增强的合成树脂。 该树脂包括分散在聚甲基丙烯酸甲酯基质中的碳纳米管。 制备该合成树脂的方法包括碳纳米管的混合和分解。
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公开(公告)号：US5814266A
公开(公告)日：1998-09-29
申请号：US650605
申请日：1996-05-20
Applicant: David A. Pienkowski , Eric A. Grulke , Robert J. Jacob
Inventor： David A. Pienkowski , Eric A. Grulke , Robert J. Jacob
CPC classification number: B29B9/12 , B29C43/006 , B29C47/0071 , B29C2791/008 , B29C47/0009 , B29C47/0011 , B29K2023/0683 , B29K2105/251
Abstract: A method for improving consolidation of powder resin is provided. The method broadly includes the steps of: (1) sorting particles of the powder resin according to their diameter; (2) combining the sorted particles having a first diameter D1 with the sorted particles having a second diameter D2 so as to form a particle mixture; (3) applying a vibration to the particle mixture; (4) heating the particle mixture; and (5) delivering the particle mixture through a nozzle or into a mold. The particle diameters D1 and D2 are chosen so that once combined there is optimal close packing of the three-dimensional spaces between the powder resin particles.
Abstract translation: 提供了改善粉末树脂固结的方法。 该方法广泛地包括以下步骤：（1）根据其直径对粉末树脂的颗粒进行分选; （2）将具有第一直径D1的分选颗粒与具有第二直径D2的分选颗粒组合以形成颗粒混合物; （3）对颗粒混合物施加振动; （4）加热颗粒混合物; 和（5）通过喷嘴或模具输送颗粒混合物。 选择粒径D1和D2，使得一旦组合，粉末树脂颗粒之间的三维空间的最佳紧密堆积是最佳的。
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Patent Agency Ranking
公开(公告)号：US5709020A
公开(公告)日：1998-01-20
申请号：US639579
申请日：1996-04-29
Applicant: David A. Pienkowski , Kwon-Yong Lee
Inventor： David A. Pienkowski , Kwon-Yong Lee
CPC classification number: A61F2/30767 , A61F2/32 , A61L27/50 , A61F2/3094 , A61F2/3676 , A61F2002/30673 , A61F2002/30685 , A61F2002/3082 , A61F2002/30922 , A61F2002/30934 , A61F2002/3429 , A61F2002/3611 , A61F2002/3617 , A61F2002/3625 , A61F2002/3631 , A61F2310/00011 , A61F2310/00179 , Y10S623/901 , Y10T29/49758
Abstract: A method is provided for reducing the amount of wear particulates generated by a total joint orthopaedic implant. The implant consists of two matched articulating components wherein at least one of the components is made of polymer or other material with similar physical properties. The method includes the steps of placing the total joint orthopaedic implant in a fluid bath and articulating the implant in the fluid bath for at least 1,000 cycles. The articulation may be performed in three stages. In the first, the implant is articulated under a load of substantially 0.1-500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. During a second stage the articulation takes place under a load of substantially 100-2,500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. In the third stage the articulation takes place under a load of substantially 2,500-10,000 Newtons at sliding speeds of 0.5-2.0 meters per second. The method also includes pre-implantation creeping for the polymer component. This improves the wear resistance of the polymer component, as well as, increases the conformity between the matched articulating components resulting in reduced wear particulate generation.
Abstract translation: 提供了一种用于减少由总关节整形外科植入物产生的磨损颗粒的量的方法。 植入物由两个匹配的关节部件组成，其中至少一个部件由具有相似物理性质的聚合物或其他材料制成。 该方法包括以下步骤：将总关节整形外科植入物置于流体浴中并将植入物在流体浴中铰接至少1,000次循环。 关节可以分三个阶段进行。 首先，植入物在基本上为0.1-500牛顿的载荷下铰接，滑动速度基本上为0.01-0.5米/秒。 在第二阶段期间，铰链在基本上为100-2,500牛顿的载荷下进行，滑动速度基本上为0.01-0.5米/秒。 在第三阶段中，以0.5-2.0米/秒的滑动速度在大约2,500-10,000牛顿的载荷下进行铰接。 该方法还包括用于聚合物组分的植入前蠕动。 这提高了聚合物组分的耐磨性，并且增加了匹配的铰接部件之间的一致性，导致减少的磨损颗粒产生。
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公开(公告)号：US5702456A
公开(公告)日：1997-12-30
申请号：US623605
申请日：1996-03-28
Applicant: David A. Pienkowski
Inventor： David A. Pienkowski
CPC classification number: A61F2/30767 , A61F2/32 , A61L27/50 , A61F2/3094 , A61F2/3676 , A61F2002/30673 , A61F2002/30685 , A61F2002/3082 , A61F2002/30922 , A61F2002/30934 , A61F2002/3429 , A61F2002/3611 , A61F2002/3617 , A61F2002/3625 , A61F2002/3631 , A61F2310/00011 , A61F2310/00179 , Y10S623/923 , Y10T29/49758
Abstract: A method is provided for reducing the amount of wear particulates generated by a total joint orthopaedic implant. The implant consists of two matched articulating components. The method includes the steps of placing the total joint orthopaedic implant in a fluid bath and articulating the implant in the fluid bath for at least 1,000 cycles. The articulation may be performed in three stages. In the first, the implant is articulated under a load of substantially 0.1-500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. During a second stage the articulation takes place under a load of substantially 200-2,500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. In the third stage the articulation takes place under a load of substantially 2,500-10,000 Newtons at sliding speeds of 0.5-2.0 meters per second.
Abstract translation: 提供了一种用于减少由总关节整形外科植入物产生的磨损颗粒的量的方法。 植入物由两个匹配的关节部件组成。 该方法包括以下步骤：将总关节整形外科植入物置于流体浴中并将植入物在流体浴中铰接至少1,000次循环。 关节可以分三个阶段进行。 首先，植入物在基本上为0.1-500牛顿的载荷下铰接，滑动速度基本上为0.01-0.5米/秒。 在第二阶段期间，铰链在基本上为200-2,500牛顿的载荷下进行，滑动速度基本上为0.01-0.5米/秒。 在第三阶段中，以0.5-2.0米/秒的滑动速度在大约2,500-10,000牛顿的载荷下进行铰接。
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公开(公告)号：US5515590A
公开(公告)日：1996-05-14
申请号：US276972
申请日：1994-07-19
Applicant: David A. Pienkowski
Inventor： David A. Pienkowski
CPC classification number: A61F2/30767 , A61F2/32 , A61L27/50 , A61F2/3094 , A61F2/3676 , A61F2002/30673 , A61F2002/30685 , A61F2002/3082 , A61F2002/30922 , A61F2002/30934 , A61F2002/3429 , A61F2002/3611 , A61F2002/3617 , A61F2002/3625 , A61F2002/3631 , A61F2310/00011 , A61F2310/00179 , Y10S623/923 , Y10T29/49758
Abstract: A method is provided for reducing the amount of wear particulates generated by a total joint orthopaedic implant. The implant consists of two matched articulating components. The method includes the steps of placing the total joint orthopaedic implant in a fluid bath and articulating the implant in the fluid bath for at least 1,000 cycles. The articulation may be performed in three stages. In the first, the implant is articulated under a load of substantially 0.1-500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. During a second stage the articulation takes place under a load of substantially 200-2,500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. In the third stage the articulation takes place under a load of substantially 2,500-10,000 Newtons at sliding speeds of 0.5-2.0 meters per second.
Abstract translation: 提供了一种用于减少由总关节整形外科植入物产生的磨损颗粒的量的方法。 植入物由两个匹配的关节部件组成。 该方法包括以下步骤：将总关节整形外科植入物置于流体浴中并将植入物在流体浴中铰接至少1,000次循环。 关节可以分三个阶段进行。 首先，植入物在基本上为0.1-500牛顿的载荷下铰接，滑动速度基本上为0.01-0.5米/秒。 在第二阶段期间，铰链在基本上为200-2,500牛顿的载荷下进行，滑动速度基本上为0.01-0.5米/秒。 在第三阶段中，以0.5-2.0米/秒的滑动速度在大约2,500-10,000牛顿的载荷下进行铰接。
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公开(公告)号：US06599961B1
公开(公告)日：2003-07-29
申请号：US09909666
申请日：2001-07-20
Applicant: David A. Pienkowski , Rodney J. Andrews
Inventor： David A. Pienkowski , Rodney J. Andrews
IPC: A61K6083
CPC classification number: A61K6/027 , Y10S977/742 , Y10S977/753 , Y10S977/845 , Y10S977/846 , A61K6/083 , C08L33/00
Abstract: An augmented synthetic resin is provided. That resin includes carbon nanotubes dispersed in a polymethylmethacrylate matrix. The method of preparing this synthetic resin includes the mixing and disaggregating of the carbon nanotubes.
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公开(公告)号：US5879388A
公开(公告)日：1999-03-09
申请号：US963057
申请日：1997-11-03
Applicant: David A. Pienkowski , Kwon-Yong Lee
Inventor： David A. Pienkowski , Kwon-Yong Lee
CPC classification number: A61F2/30767 , A61F2/32 , A61L27/50 , A61F2/3094 , A61F2/3676 , A61F2002/30673 , A61F2002/30685 , A61F2002/3082 , A61F2002/30922 , A61F2002/30934 , A61F2002/3429 , A61F2002/3611 , A61F2002/3617 , A61F2002/3625 , A61F2002/3631 , A61F2310/00011 , A61F2310/00179 , Y10S623/901 , Y10T29/49758
Abstract: A method is provided for reducing the amount of wear particulates generated by a total joint orthopaedic implant. The implant consists of two matched articulating components wherein at least one of the components is made of polymer or other material with similar physical properties. The method includes the steps of placing the total joint orthopaedic implant in a fluid bath and articulating the implant in the fluid bath for at least 1,000 cycles. The articulation may be performed in three stages. In the first, the implant is articulated under a load of substantially 0.1-500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. During a second stage the articulation takes place under a load of substantially 100-2,500 Newtons with sliding speeds of substantially 0.01-0.5 meters per second. In the third stage the articulation takes place under a load of substantially 2,500-10,000 Newtons at sliding speeds of 0.5-2.0 meters per second. The method also includes pre-implantation creeping for the polymer component. This improves the wear resistance of the polymer component, as well as, increases the conformity between the matched articulating components resulting in reduced wear particulate generation.
Abstract translation: 提供了一种用于减少由总关节整形外科植入物产生的磨损颗粒的量的方法。 植入物由两个匹配的关节部件组成，其中至少一个部件由具有相似物理性质的聚合物或其他材料制成。 该方法包括以下步骤：将总关节整形外科植入物置于流体浴中并将植入物在流体浴中铰接至少1,000次循环。 关节可以分三个阶段进行。 首先，植入物在基本上为0.1-500牛顿的载荷下铰接，滑动速度基本上为0.01-0.5米/秒。 在第二阶段期间，铰链在基本上为100-2,500牛顿的载荷下进行，滑动速度基本上为0.01-0.5米/秒。 在第三阶段中，以0.5-2.0米/秒的滑动速度在大约2,500-10,000牛顿的载荷下进行铰接。 该方法还包括用于聚合物组分的植入前蠕动。 这提高了聚合物组分的耐磨性，并且增加了匹配的铰接部件之间的一致性，导致减少的磨损颗粒产生。
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