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1. 发明授权

US6010455A Skin perfusion evaluation apparatus 失效
标题翻译：皮肤灌注评估仪
公开(公告)号：US6010455A
公开(公告)日：2000-01-04
申请号：US102160
申请日：1998-06-22
申请人： Richard I. Barnett , Ryszard S. Ozarowski , William T. Sutton , James M. C. Thomas , William C. Knapp
发明人： Richard I. Barnett , Ryszard S. Ozarowski , William T. Sutton , James M. C. Thomas , William C. Knapp
IPC分类号： A61B5/00 , A61B5/026 , G01K3/14
CPC分类号： A61B5/01 , A61B5/026 , G01K3/14
摘要： An apparatus for evaluating perfusion adjacent a skin surface includes a housing having first and second interior regions. The housing is configured to engage the skin surface. The apparatus also includes a plunger located in the first region of the housing for applying pressure to a first zone of the skin surface, a vacuum connection coupled to the second region of the housing to permit suction to be applied to the second region of the housing and to a second zone of the skin surface, a first temperature sensor for generating an output signal related to the temperature of the first zone of the skin surface, a second temperature sensor for generating an output signal related to the temperature of the second zone of the skin surface, and a processor circuit coupled to the first and second temperature sensors for determining a differential temperature between the first and second zones of the skin surface to provide an indication of perfusion adjacent the skin surface.
摘要翻译：用于评估邻近皮肤表面的灌注的装置包括具有第一和第二内部区域的壳体。壳体构造成接合皮肤表面。该装置还包括位于壳体的第一区域中的柱塞，用于向皮肤表面的第一区域施加压力，联接到壳体的第二区域的真空连接件，以允许吸力施加到壳体的第二区域并且到达皮肤表面的第二区域，第一温度传感器，用于产生与皮肤表面的第一区域的温度相关的输出信号;第二温度传感器，用于产生与第二区域的温度有关的输出信号; 皮肤表面和耦合到第一和第二温度传感器的处理器电路，用于确定皮肤表面的第一和第二区域之间的温差，以提供邻近皮肤表面的灌注指示。

2. 发明授权

US5010608A Support system for reducing formation of decubitus ulcers 失效
标题翻译：减少褥疮溃疡形成的支持系统
公开(公告)号：US5010608A
公开(公告)日：1991-04-30
申请号：US419891
申请日：1989-10-11
申请人： Richard I. Barnett , William C. Knapp
发明人： Richard I. Barnett , William C. Knapp
IPC分类号： A61G7/057
CPC分类号： A61G7/05776 , A61G2210/90
摘要： A support system that reduces the likelihood of breakdown of human skin, and hence formation of decubitus ulcers, is disclosed. The system comprises two sheets of flexible material bonded together to provide a plurality of separate cells that are capable of being alternately and repeatedly inflated and deflated by means of a fluid contained in the cells. The flexible material is impermeable to the fluid. The cells are of a size and shape and with an intercellular spacing such that in at least one of the width and length of the system, the distance between centers of adjacent inflated cells is less than the human two-point discrimination threshold and the support system is capable of supporting a human body with bottoming out either of or between the inflated cells. In particular embodiments, the support system is in the form of a mattress. The support system may be used with persons who are confined to bed, wheelchairs or the like for periods of time or who are otherwise fully or partially immobilized, including for therapeutic reasons.
摘要翻译：公开了一种降低人皮肤破裂的可能性并因此降低褥疮溃疡形成的支撑系统。该系统包括两片粘合在一起的柔性材料，以提供能够通过包含在单元中的流体交替地和反复地膨胀和放气的多个分开的单元。柔性材料对流体是不透水的。细胞具有尺寸和形状并具有细胞间距，使得在系统的宽度和长度中的至少一个中，相邻充气细胞的中心之间的距离小于人两点鉴别阈值，并且支持系统能够在充气细胞之间或之间支撑底部的人体。在特定实施例中，支撑系统是床垫的形式。支持系统可以与被限制在卧床或轮椅等的时间或者完全或部分固定的人一起使用，包括出于治疗原因。

3. 发明授权

US5423228A Dilution stack sampling apparatus 失效
标题翻译：稀释堆取样装置
公开(公告)号：US5423228A
公开(公告)日：1995-06-13
申请号：US992584
申请日：1992-12-18
申请人： Allan L. Budd , William C. Knapp
发明人： Allan L. Budd , William C. Knapp
IPC分类号： G01N1/22 , G01N1/38
CPC分类号： G01N1/2258 , G01N1/38 , G01N2001/2264 , G01N2001/227
摘要： Dilution stack sampling apparatus, for analyzing gaseous components of a gas stream from a stack containing particulate material of varying size therein. A passageway has a first end communicating at an angle with the probe intermediate its ends to receive a sample of gas and to change its flow direction to inertially remove most of the particulate material. An eductor connected to the second end of the passageway mixes dilution air with the sample of gas to provide a diluted sample. A filter upstream of the second end of the passageway removes remaining particulate material from the sample of gas which is not the inertially separated. Instrument air can be provided in a back-flow direction at the upstream side of the filter to periodically remove particulate material from the filter. The diluted sample and the dilution gas are supplied to gas analyzer, and the mass flow rate of the dilution gas and diluted gas are measured. The amount of the dilution gas and the dilution sample are compared in the gas analyzer to determine the ratio of each measured gas in the sample to the total gas sample.
摘要翻译：稀释堆取样装置，用于从其中包含不同大小的颗粒材料的堆叠分析气流的气体组分。通道具有与探头成一定角度连通的第一端，其端部之间接收气体样本并改变其流动方向以惯性地去除大部分颗粒材料。连接到通道第二端的喷射器将稀释空气与气体样品混合以提供稀释的样品。在通道第二端上游的过滤器从不是惯性分离的气体样品中去除剩余的颗粒物质。可以在过滤器的上游侧沿回流方向设置仪器空气，以从过滤器周期性地移除颗粒材料。将稀释的样品和稀释气体供给气体分析器，并测量稀释气体和稀释气体的质量流量。在气体分析仪中比较稀释气体和稀释样品的量，以确定样品中每个测量气体与总气体样品的比例。

4. 发明授权

US06248066B1 Skin perfusion evaluation apparatus 失效
标题翻译：皮肤灌注评估仪
公开(公告)号：US06248066B1
公开(公告)日：2001-06-19
申请号：US09476837
申请日：2000-01-03
申请人： Richard I. Barnett , Ryszard S. Ozarowski , William T. Sutton , James M. C. Thomas , William C. Knapp
发明人： Richard I. Barnett , Ryszard S. Ozarowski , William T. Sutton , James M. C. Thomas , William C. Knapp
IPC分类号： A61B500
CPC分类号： A61B5/01 , A61B5/026 , G01K3/14 , G06F19/00
摘要： An apparatus for evaluating perfusion adjacent a skin surface includes a housing having first an second interior regions. The housing is configured to engage the skin surface. The apparatus also includes a plunger located in the first region of the housing for applying pressure to a first zone of the skin surface, a vacuum connection coupled to the second region of the housing to permit suction to be applied to the second region of the housing and to a second zone of the skin surface, a first temperature sensor for generating an output signal related to the temperature of the first zone of the skin surface, a second temperature sensor for generating an output signal related to the temperature of the second zone of the skin surface, and a processor circuit coupled to the first and second temperature sensors for determining a differential temperature between the first and second zones of the skin surface to provide an indication of perfusion adjacent the skin surface.
摘要翻译：用于评估邻近皮肤表面的灌注的装置包括具有第一第二内部区域的壳体。壳体构造成接合皮肤表面。该装置还包括位于壳体的第一区域中的柱塞，用于向皮肤表面的第一区域施加压力，联接到壳体的第二区域的真空连接件，以允许吸力施加到壳体的第二区域并且到达皮肤表面的第二区域，第一温度传感器，用于产生与皮肤表面的第一区域的温度相关的输出信号;第二温度传感器，用于产生与第二区域的温度有关的输出信号; 皮肤表面和耦合到第一和第二温度传感器的处理器电路，用于确定皮肤表面的第一和第二区域之间的温差，以提供邻近皮肤表面的灌注指示。

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