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公开(公告)号:US09662210B2
公开(公告)日:2017-05-30
申请号:US14306508
申请日:2014-06-17
Applicant: TA INSTRUMENTS-WATERS L.L.C.
Inventor: David L. Dingmann , Troy D. Nickel , Andrew D. White , Kyle P. Duffin , Ryan Siskey , Michael Liebschner , Andrew Rau , Sunoj Narayanan , Lito Cruz Mejia
CPC classification number: A61F2/2472
Abstract: This document provides systems and methods for testing of various kinds of valves. For example, this document provides systems and methods for accelerated life testing of prosthetic heart valves.
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公开(公告)号:US20160341651A1
公开(公告)日:2016-11-24
申请号:US15160615
申请日:2016-05-20
Applicant: TA Instruments - Waters L.L.C.
Inventor: Jason L. Chinavare , Sunoj Narayanan , David L. Dingmann , Lito Cruz Mejia
CPC classification number: G01N15/0618 , A61F2/82 , A61F2250/0067 , G01N3/08 , G01N15/1459 , G01N2015/0687 , G01N2015/1062 , G01N2015/1486 , G01N2203/0242
Abstract: Systems, methods, and devices are provided for testing a drug eluting prosthesis. A drug eluting prosthesis is placed within a conduit that is coupled at one end to a first conduit frame and at a second end to a second conduit frame. The first conduit frame is coupled to the second conduit frame using a movable shaft, such that the first conduit frame and the second conduit frame can move relative to each other. When the first conduit frame and the second conduit frame are moved relative to each other, they expose the conduit and the drug eluting prosthesis to compressive or tensile forces. While the drug eluting prosthesis is being exposed to compressive or tensile forces, a fluid flow is provided through the conduit to test the particle shed rate of the drug eluting prosthesis.
Abstract translation: 提供系统,方法和设备用于测试药物洗脱假体。 药物洗脱假体放置在导管内,导管的一端连接到第一导管框架,第二端连接到第二导管框架。 第一管道框架使用可移动的轴联接到第二管道框架,使得第一管道框架和第二管道框架可相对于彼此移动。 当第一管道框架和第二管道框架相对于彼此移动时,它们将导管和药物洗脱假体暴露于压缩或拉伸力。 当药物洗脱假体暴露于压缩或拉伸力时,通过导管提供流体流动以测试药物洗脱假体的颗粒流失速率。
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公开(公告)号:US10006932B2
公开(公告)日:2018-06-26
申请号:US15171742
申请日:2016-06-02
Applicant: TA Instruments—Waters L.L.C.
Inventor: Andrew D. White , David Deviley , David L. Dingmann
CPC classification number: G01P21/02 , G01N3/08 , G01N3/62 , G01N2203/021
Abstract: In a mechanical test system, a method of compensating for acceleration induced load error in a load sensor in a mechanical communication with a component comprises measuring an acceleration of the component to obtain an acceleration measurement. A load sensor measures a force applied by the mechanical test system to a test sample in substantially a same direction of the acceleration to obtain a force measurement. The force measurement is modified with a transfer function that includes at least one of a gain correction and a phase correction to compensate for an error value in the force measurement attributed to movement of at least the load sensor when the force is applied to the test sample.
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公开(公告)号:US20160274142A1
公开(公告)日:2016-09-22
申请号:US15171742
申请日:2016-06-02
Applicant: TA Instruments - Waters L.L.C.
Inventor: Andrew D. White , David Deviley , David L. Dingmann
IPC: G01P21/02
CPC classification number: G01P21/02 , G01N3/08 , G01N3/62 , G01N2203/021
Abstract: In a mechanical test system, a method of compensating for acceleration induced load error in a load sensor in a mechanical communication with a component comprises measuring an acceleration of the component to obtain an acceleration measurement. A load sensor measures a force applied by the mechanical test system to a test sample in substantially a same direction of the acceleration to obtain a force measurement. The force measurement is modified with a transfer function that includes at least one of a gain correction and a phase correction to compensate for an error value in the force measurement attributed to movement of at least the load sensor when the force is applied to the test sample.
Abstract translation: 在机械测试系统中,在与部件的机械通信中补偿负载传感器中的加速度感应负载误差的方法包括测量部件的加速度以获得加速度测量。 负载传感器测量机械测试系统对加速度基本相同方向的测试样品施加的力,以获得力测量。 力测量用传递函数进行修改,该传递函数包括增益校正和相位校正中的至少一个,以补偿当力施加到测试样本时归因于至少负载传感器的移动的力测量中的误差值 。
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公开(公告)号:US20150359633A1
公开(公告)日:2015-12-17
申请号:US14306508
申请日:2014-06-17
Applicant: TA INSTRUMENTS-WATERS L.L.C.
Inventor: David L. Dingmann , Troy D. Nickel , Andrew D. White , Kyle P. Duffin , Ryan Siskey , Michael Liebschner , Andrew Rau , Sunoj Narayanan , Lito Cruz Mejia
CPC classification number: A61F2/2472
Abstract: This document provides systems and methods for testing of various kinds of valves. For example, this document provides systems and methods for accelerated life testing of prosthetic heart valves.
Abstract translation: 本文档提供了各种阀门测试的系统和方法。 例如,本文档提供了用于假体心脏瓣膜加速寿命测试的系统和方法。
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公开(公告)号:US10105227B2
公开(公告)日:2018-10-23
申请号:US15603961
申请日:2017-05-24
Applicant: TA Instruments-Waters L.L.C.
Inventor: David L. Dingmann , Troy D. Nickel , Andrew D. White , Kyle P. Duffin , Ryan Siskey , Michael Liebschner , Andrew Rau , Sunoj Narayanan , Lito Cruz Mejia
Abstract: This document provides systems and methods for testing of various kinds of valves. For example, this document provides systems and methods for accelerated life testing of prosthetic heart valves.
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公开(公告)号:US20170252164A1
公开(公告)日:2017-09-07
申请号:US15603961
申请日:2017-05-24
Applicant: TA Instruments-Waters L.L.C.
Inventor: David L. Dingmann , Troy D. Nickel , Andrew D. White , Kyle P. Duffin , Ryan Siskey , Michael Liebschner , Andrew Rau , Sunoj Narayanan , Lito Cruz Mejia
IPC: A61F2/24
CPC classification number: A61F2/2472
Abstract: This document provides systems and methods for testing of various kinds of valves. For example, this document provides systems and methods for accelerated life testing of prosthetic heart valves.
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公开(公告)号:US20160032950A1
公开(公告)日:2016-02-04
申请号:US14448256
申请日:2014-07-31
Applicant: TA INSTRUMENTS-WATERS L.L.C.
Inventor: Aaron M. Owens , Stefanie Vawn Biechler , Jason Chinavare , David L. Dingmann , Charles Groepper , Thomas M. Hays , Riaz Ahmed
Abstract: A mechanical clamping device can include at least two contact faces, a first of the contact faces configured to travel in response to an applied force, each contact face configured to contact a sample when loaded into the mechanical clamping device. The device can further include a load element configured to cause the two contact faces to apply a clamping force to the sample when loaded into the mechanical clamping device.
Abstract translation: 机械夹紧装置可以包括至少两个接触面,第一接触面被配置为响应于所施加的力而行进,每个接触面被配置成在装载到机械夹紧装置中时接触样品。 该装置还可以包括负载元件,该负载元件被配置为当加载到机械夹紧装置中时使两个接触面向样品施加夹紧力。
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