公开(公告)号：US20130113057A1

公开(公告)日：2013-05-09

申请号：US13724889

申请日：2012-12-21

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor

IPC: H01L29/84

CPC classification number: A47C27/082 ,  A61B5/1036 ,  A61B5/6892 ,  A61B2562/0247 ,  A61B2562/046 ,  G01L1/16 ,  G01L1/18 ,  G01L1/20 ,  G01L1/205 ,  G01L5/228 ,  G01N3/08 ,  G01N2203/0623 ,  H01L29/84

Abstract: A force sensing array includes multiple layers of material that are arranged to define an elastically stretchable sensing sheet. The sensing sheet may be placed underneath a patient to detect interface forces or pressures between the patient and the support structure that the patient is positioned on. The force sensing array includes a plurality of force sensors. The force sensors are defined where a row conductor and a column conductor approach each other on opposite sides of a force sensing material, such as a piezoresistive material. In order to reduce electrical cross talk between the plurality of sensors, a semiconductive material is included adjacent the force sensing material to create a PN junction with the force sensing material. This PN junction acts as a diode, limiting current flow to essentially one direction, which, in turn, reduces cross talk between the multiple sensors.

Abstract translation: 力感测阵列包括多层材料，其被布置成限定弹性可拉伸感测片。 感测片可以放置在患者身体下方以检测患者和患者所在的支撑结构之间的界面力或压力。 力传感阵列包括多个力传感器。 力传感器被定义为行导体和柱导体在力感测材料（例如压阻材料）的相对侧上彼此接近。 为了减少多个传感器之间的电串扰，包括邻近力传感材料的半导体材料以产生与力感测材料的PN结。 该PN结用作二极管，限制电流流向基本上一个方向，这反过来又减少了多个传感器之间的串扰。

公开(公告)号：US20130091961A1

公开(公告)日：2013-04-18

申请号：US13644961

申请日：2012-10-04

Applicant: STRYKER CORPORATION

Inventor： Geoffrey L. Taylor

IPC: G01L5/00 ,  B32B5/26 ,  D04H3/00

CPC classification number: G01L5/00 ,  B32B3/04 ,  B32B5/024 ,  B32B5/026 ,  B32B5/26 ,  B32B2255/02 ,  B32B2255/205 ,  B32B2262/0261 ,  B32B2262/0276 ,  B32B2262/14 ,  B32B2307/20 ,  B32B2479/00 ,  B32B2535/00 ,  D04H3/00 ,  D04H3/04 ,  G01L1/146 ,  G01L1/16 ,  G01L1/18 ,  G01L1/205

Abstract: A pressure sensing sheet includes at least first, second, and third layers wherein the first and third layers each have conductive paths defined therein that are separated by nonconductive spacers. The orientation of the conductive paths of the first layer are transverse to the orientation of the conductive paths of the third layer. The second layer is made of material that has an electrical characteristic that changes with applied pressure, such as, but not limited to, piezoresistive or piezoelectric material. The first and/or third layers are made from multi-material sheets wherein a first type of material will repel conductive particles when subjected to an autocatalytic coating process, while the second type of material will bond with the conductive particles during the autocatalytic coating process. The use of different materials in the first and/or third layers facilitates the manufacturing of the conductive paths and nonconductive spacers.

Abstract translation: 压力感测板包括至少第一层，第二层和第三层，其中第一层和第三层各自具有限定在其中的导电路径，其被非导电间隔物隔开。 第一层的导电路径的取向横向于第三层的导电路径的取向。 第二层由具有随着施加的压力而变化的电特性的材料制成，例如但不限于压阻或压电材料。 第一层和/或第三层由多材料板制成，其中第一类型的材料在经受自动催化涂覆工艺时将排斥导电颗粒，而第二类型的材料将在自催化涂覆过程期间与导电颗粒结合。 在第一和/或第三层中使用不同的材料有助于导电路径和非导电间隔物的制造。

公开(公告)号：US09642470B2

公开(公告)日：2017-05-09

申请号：US14341328

申请日：2014-07-25

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor

IPC: G01L1/22 ,  G01L3/00 ,  G01D7/00 ,  A47C27/08 ,  G01L1/18 ,  G01N3/08 ,  H01L29/84 ,  G01L1/20 ,  G01L5/22 ,  A61B5/103 ,  A61B5/00 ,  G01L1/16

CPC classification number: A47C27/082 ,  A61B5/1036 ,  A61B5/6892 ,  A61B2562/0247 ,  A61B2562/046 ,  G01L1/16 ,  G01L1/18 ,  G01L1/20 ,  G01L1/205 ,  G01L5/228 ,  G01N3/08 ,  G01N2203/0623 ,  H01L29/84

Abstract: A support apparatus includes a force sensing array positioned thereon that includes multiple layers of material that are arranged to define an elastically stretchable sensing sheet. The sensing sheet may be placed underneath a patient to detect interface forces or pressures between the patient and the support structure that the patient is positioned on. The force sensing array includes a plurality of force sensors. The force sensors are defined where a row conductor and a column conductor approach each other on opposite sides of a force sensing material, such as a piezoresistive material. In order to reduce electrical cross talk between the plurality of sensors, a semiconductive material is included adjacent the force sensing material to create a PN junction with the force sensing material. This PN junction acts as a diode, limiting current flow to essentially one direction, which, in turn, reduces cross talk between the multiple sensors.

公开(公告)号：US08875331B2

公开(公告)日：2014-11-04

申请号：US14019089

申请日：2013-09-05

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor

IPC: A47C27/08 ,  G01L1/18 ,  A47C27/10 ,  A61B5/00 ,  G01L1/20 ,  A61B5/11

CPC classification number: A47C27/083 ,  A47C27/082 ,  A47C27/10 ,  A61B5/1126 ,  A61B5/6887 ,  A61B5/6892 ,  A61B2562/0247 ,  A61B2562/0252 ,  A61B2562/046 ,  A61G7/05776 ,  A61G2203/32 ,  A61G2203/34 ,  G01L1/18 ,  G01L1/205

Abstract: An adaptive cushion for reducing pressure on body parts of a person positioned on a chair or bed includes an overlay cushion having a plurality of individual air bladder cells, each having thereon a force sensor. The cushion includes a controller for inflating and deflating individual air bladder cells to air pressures that tend to reduce the interface pressures sensed by the force sensors. A pressure reduction method includes varying the inflation pressure in a first air bladder cell while measuring the sum of the interface pressures exerted on all or a plurality of the air bladder cells, re-pressurizing the first cell to that air pressure for which a minimum total interface pressure was obtained, repeating this process for the remaining air bladder cells.

Abstract translation: 用于减轻位于椅子或床上的人的身体部位上的压力的适应性衬垫包括具有多个单独的气囊单元的覆盖垫，每个气囊具有力传感器。 衬垫包括用于将单个气囊细胞充气和放气至气压的控制器，所述空气压力倾向于降低由力传感器感测到的界面压力。 压力降低方法包括在测量施加在所有或多个空气囊细胞上的界面压力的总和之间改变第一气囊单元中的充气压力，将第一电池重新加压到具有最小总气压 获得界面压力，对剩余的气囊细胞重复该过程。

公开(公告)号：US08800386B2

公开(公告)日：2014-08-12

申请号：US13724889

申请日：2012-12-21

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor

IPC: G01L1/22 ,  G01L3/00 ,  G01D7/00 ,  G01L1/20 ,  H01L29/84 ,  G01N3/08 ,  G01L1/18

CPC classification number: A47C27/082 ,  A61B5/1036 ,  A61B5/6892 ,  A61B2562/0247 ,  A61B2562/046 ,  G01L1/16 ,  G01L1/18 ,  G01L1/20 ,  G01L1/205 ,  G01L5/228 ,  G01N3/08 ,  G01N2203/0623 ,  H01L29/84

Abstract: A force sensing array includes multiple layers of material that are arranged to define an elastically stretchable sensing sheet. The sensing sheet may be placed underneath a patient to detect interface forces or pressures between the patient and the support structure that the patient is positioned on. The force sensing array includes a plurality of force sensors. The force sensors are defined where a row conductor and a column conductor approach each other on opposite sides of a force sensing material, such as a piezoresistive material. In order to reduce electrical cross talk between the plurality of sensors, a semiconductive material is included adjacent the force sensing material to create a PN junction with the force sensing material. This PN junction acts as a diode, limiting current flow to essentially one direction, which, in turn, reduces cross talk between the multiple sensors.

Abstract translation: 力感测阵列包括多层材料，其被布置成限定弹性可拉伸感测片。 感测片可以放置在患者身体下方以检测患者和患者所在的支撑结构之间的界面力或压力。 力传感阵列包括多个力传感器。 力传感器被定义为行导体和柱导体在力感测材料（例如压阻材料）的相对侧上彼此接近。 为了减少多个传感器之间的电串扰，包括邻近力传感材料的半导体材料以产生与力感测材料的PN结。 该PN结用作二极管，限制电流流向基本上一个方向，这反过来又减少了多个传感器之间的串扰。

公开(公告)号：US08997588B2

公开(公告)日：2015-04-07

申请号：US13802876

申请日：2013-03-14

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor

IPC: G01L1/22 ,  G01L3/00 ,  G01D7/00 ,  G01L1/14 ,  G01L1/00 ,  A61G7/00 ,  G01L1/20

CPC classification number: G01L1/142 ,  A61B5/6892 ,  A61B2562/06 ,  A61G7/00 ,  G01L1/00 ,  G01L1/146 ,  G01L1/205

Abstract: A flexible force or pressure sensing mat includes a first sheet of electrically conductive first paths, a second sheet of electrically conductive second paths, and a sensing layer positioned between the first and second sheets. The first and second conductive paths are oriented transversely to each other, and the locations of their intersections define individual sensing areas or sensors. The sensing layer is made from materials that have first and second electrical characteristics—such as capacitance and resistance—that vary in response to physical forces exerted thereon. A controller repetitively measures the multiple electrical characteristics of each sensor in order to produce a near real time pressure distribution map of the forces sensed by the mat. The mat can be used on a patient support surface—such as a bed, cot, stretcher, recliner, operating table, etc.—to monitor and help reduce the likelihood of a patient developing pressure ulcers.

Abstract translation: 柔性力或压力感测垫包括第一片导电的第一路径，第二片导电的第二路径以及位于第一和第二片之间的感测层。 第一和第二导电路径彼此横向定向，并且它们的交点的位置限定各个感测区域或传感器。 感测层由具有第一和第二电特性（例如电容和电阻）的材料制成，其响应于施加在其上的物理力而变化。 控制器重复地测量每个传感器的多个电特性，以产生由垫感测的力的近实时压力分布图。 垫可用于患者支撑表面，例如床，婴儿床，担架，躺椅，手术台等，以监测和帮助降低患者出现压力性溃疡的可能性。

公开(公告)号：US20140090489A1

公开(公告)日：2014-04-03

申请号：US13802876

申请日：2013-03-14

Applicant: STRYKER CORPORATION

Inventor： Geoffrey L. Taylor

IPC: G01L1/14 ,  G01L1/00

CPC classification number: G01L1/142 ,  A61B5/6892 ,  A61B2562/06 ,  A61G7/00 ,  G01L1/00 ,  G01L1/146 ,  G01L1/205

Abstract: A flexible force or pressure sensing mat includes a first sheet of electrically conductive first paths, a second sheet of electrically conductive second paths, and a sensing layer positioned between the first and second sheets. The first and second conductive paths are oriented transversely to each other, and the locations of their intersections define individual sensing areas or sensors. The sensing layer is made from materials that have first and second electrical characteristics—such as capacitance and resistance—that vary in response to physical forces exerted thereon. A controller repetitively measures the multiple electrical characteristics of each sensor in order to produce a near real time pressure distribution map of the forces sensed by the mat. The mat can be used on a patient support surface—such as a bed, cot, stretcher, recliner, operating table, etc.—to monitor and help reduce the likelihood of a patient developing pressure ulcers.

Abstract translation: 柔性力或压力感测垫包括第一片导电的第一路径，第二片导电的第二路径以及位于第一和第二片之间的感测层。 第一和第二导电路径彼此横向定向，并且它们的交点的位置限定各个感测区域或传感器。 感测层由具有第一和第二电特性（例如电容和电阻）的材料制成，其响应于施加在其上的物理力而变化。 控制器重复地测量每个传感器的多个电特性，以产生由垫感测的力的近实时压力分布图。 垫可用于患者支撑表面，例如床，婴儿床，担架，躺椅，手术台等，以监测和帮助降低患者出现压力性溃疡的可能性。

公开(公告)号：US20140026327A1

公开(公告)日：2014-01-30

申请号：US14019089

申请日：2013-09-05

Applicant: STRYKER CORPORATION

Inventor： Geoffrey L. Taylor

IPC: A47C27/08

CPC classification number: A47C27/083 ,  A47C27/082 ,  A47C27/10 ,  A61B5/1126 ,  A61B5/6887 ,  A61B5/6892 ,  A61B2562/0247 ,  A61B2562/0252 ,  A61B2562/046 ,  A61G7/05776 ,  A61G2203/32 ,  A61G2203/34 ,  G01L1/18 ,  G01L1/205

Abstract: An adaptive cushion for reducing pressure on body parts of a person positioned on a chair or bed includes an overlay cushion having a plurality of individual air bladder cells, each having thereon a force sensor. The cushion includes a controller for inflating and deflating individual air bladder cells to air pressures that tend to reduce the interface pressures sensed by the force sensors. A pressure reduction method includes varying the inflation pressure in a first air bladder cell while measuring the sum of the interface pressures exerted on all or a plurality of the air bladder cells, re-pressurizing the first cell to that air pressure for which a minimum total interface pressure was obtained, repeating this process for the remaining air bladder cells.

Abstract translation: 用于减轻位于椅子或床上的人的身体部位上的压力的适应性衬垫包括具有多个单独的气囊单元的覆盖垫，每个气囊具有力传感器。 衬垫包括用于将单个气囊细胞充气和放气至气压的控制器，所述空气压力倾向于降低由力传感器感测到的界面压力。 压力降低方法包括在测量施加在所有或多个空气囊细胞上的界面压力的总和之间改变第一气囊单元中的充气压力，将第一电池重新加压到具有最小总气压 获得界面压力，对剩余的气囊细胞重复该过程。

公开(公告)号：US08966997B2

公开(公告)日：2015-03-03

申请号：US13644961

申请日：2012-10-04

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor

IPC: G01L1/22 ,  G01L3/00 ,  G01D7/00 ,  G01L5/00 ,  B32B5/26 ,  D04H3/00 ,  B32B5/02 ,  B32B3/04 ,  D04H3/04 ,  G01L1/14 ,  G01L1/16 ,  G01L1/18 ,  G01L1/20

CPC classification number: G01L5/00 ,  B32B3/04 ,  B32B5/024 ,  B32B5/026 ,  B32B5/26 ,  B32B2255/02 ,  B32B2255/205 ,  B32B2262/0261 ,  B32B2262/0276 ,  B32B2262/14 ,  B32B2307/20 ,  B32B2479/00 ,  B32B2535/00 ,  D04H3/00 ,  D04H3/04 ,  G01L1/146 ,  G01L1/16 ,  G01L1/18 ,  G01L1/205

Abstract: A pressure sensing sheet includes at least first, second, and third layers wherein the first and third layers each have conductive paths defined therein that are separated by nonconductive spacers. The orientation of the conductive paths of the first layer are transverse to the orientation of the conductive paths of the third layer. The second layer is made of material that has an electrical characteristic that changes with applied pressure, such as, but not limited to, piezoresistive or piezoelectric material. The first and/or third layers are made from multi-material sheets wherein a first type of material will repel conductive particles when subjected to an autocatalytic coating process, while the second type of material will bond with the conductive particles during the autocatalytic coating process. The use of different materials in the first and/or third layers facilitates the manufacturing of the conductive paths and nonconductive spacers.

Abstract translation: 压力感测板包括至少第一层，第二层和第三层，其中第一层和第三层各自具有限定在其中的导电路径，其被非导电间隔物隔开。 第一层的导电路径的取向横向于第三层的导电路径的取向。 第二层由具有随着施加的压力而变化的电特性的材料制成，例如但不限于压阻或压电材料。 第一层和/或第三层由多材料板制成，其中第一类型的材料在经受自动催化涂覆工艺时将排斥导电颗粒，而第二类型的材料将在自催化涂覆过程期间与导电颗粒结合。 在第一和/或第三层中使用不同的材料有助于导电路径和非导电间隔物的制造。

公开(公告)号：US08904876B2

公开(公告)日：2014-12-09

申请号：US13631981

申请日：2012-09-29

Applicant: Stryker Corporation

Inventor： Geoffrey L. Taylor ,  William L. Chapin

IPC: G01L9/06 ,  H01G7/00

CPC classification number: G01L1/144 ,  G01L1/18 ,  G01L9/12

Abstract: Flexible force/pressure sensors for producing electrical output signals proportional to forces or pressures exerted on the sensor include a thin, elastically deformable foam pad laminated between a pair of electrically conducive fabric sheets. A piezocapacitive embodiment of the sensor utilizes an elastically deformable perforated open-cell polyurethane foam pad preferably saturated with glycerin to increase the capacitance of the sensor. The piezocapacitive sensor section is preferably stacked onto a piezoresistive section having a second open-cell foam pad containing piezoresistive carbon particles to form a hybrid piezocapacitive/piezoresistive sensor. A third, “leaky dielectric” embodiment of a sensor includes a single open-cell foam pad which contains both a dielectric liquid and conductive particles. A low frequency such as d.c. to a few hertz is applied to a sensor to determine piezoresistive response of the sensor to forces or pressures and a higher frequency such as 30 KHz is applied to determine piezocapactive response.

Abstract translation: 用于产生与施加在传感器上的力或压力成比例的电输出信号的柔性力/压力传感器包括层压在一对导电织物片之间的薄的可弹性变形的泡沫垫。 传感器的压电式实施例利用可弹性变形的穿孔开孔聚氨酯泡沫垫，其优选地用甘油饱和以增加传感器的电容。 压电传感器部分优选地堆叠到具有包含压阻碳颗粒的第二开孔泡沫垫的压阻部分上以形成混合压电/压阻传感器。 传感器的第三个“泄漏电介质”实施例包括单个开孔泡沫垫，其包含电介质液体和导电颗粒。 低频例如直流 将几赫兹施加到传感器以确定传感器对力或压力的压阻响应，并且应用诸如30KHz的较高频率以确定压电响应。