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公开(公告)号：US20220322954A1
公开(公告)日：2022-10-13
申请号：US17634264
申请日：2020-08-14
摘要： An optical analysis of saliva or a fluid-saliva mixture is performed in order to check whether the saliva or fluid-saliva mixture contains blood, which allows for determining whether or not a person may suffer from gingivitis or another condition affecting gum health. Light received from a representative volume of fluid (23) containing saliva is detected and analyzed. The analysis involves determination of at least one measurement value of light received by a light-receiving unit (25) for only a single wavelength of the light, particularly a wavelength that is associated with high absorption by a constituent of blood. It this respect, it is practical if the light-receiving unit (25) is configured to receive reflected light back from the volume of fluid (23). The optical analysis may be performed real-time during an action in a person's mouth involving a gum agitation effect, or after such action has taken place, for example.
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公开(公告)号：US20180106910A1
公开(公告)日：2018-04-19
申请号：US15501193
申请日：2016-06-28
IPC分类号： G01T1/24
摘要： The present invention relates to a direct conversion radiation detector for wherein the direct conversion material comprises a garnet with a composition of Z3(AlxGay)O12:Ce, wherein Z is Lu, Gd, Y, Tb or combinations thereof and wherein y is equal to or greater than x; and preferably Z comprises Gd. Suitable garnets directly convert radiation, such as x-rays or gamma-rays, into electronic signals. Preferably photoluminescence of the garnet is low or absent. The detector is particularly suitable for use in x-ray imaging devices, such as computed tomography. In some embodiments photoluminescence of garnets might be used to construct a hybrid direct-indirect conversion detector, which may be particularly suitable for use with Time-of-Flight PET.
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3.发明申请公开(公告)号：US20160146950A1
公开(公告)日：2016-05-26
申请号：US14903640
申请日：2014-07-17
CPC分类号： G01T1/2023 , C09K11/7773
摘要： This disclosure relates to luminescent compositions comprising a host matrix sensitized by Ce3+ and showing emission in the ultraviolet range. Typical host matrices include fluorides, sulphates, and phosphates, in particular A(Y1-x-yLuxLay)F4, A(Y1-x-yLuxLay)3F10, BaCa(Y1-x-yLuxLay)2F10, and Ba(Y1-x-yLuxLay)2F8, wherein A=Li, Na, K, Rb, or Cs. One or more of these luminescent compositions may be applied as a ceramic or single crystalline converter for CT, PET or SPECT scanners, or as a luminescent powder layer for x-ray intensifying screens.
摘要翻译： 本公开涉及包含由Ce 3+敏化并显示在紫外范围内的发射的主体基质的发光组合物。 典型的主体基质包括氟化物，硫酸盐和磷酸盐，特别是A（Y1-x-yLuxLay）F4，A（Y1-x-yLuxLay）3F10，BaCa（Y1-x-yLuxLay）2F10和Ba（Y1-x- yLuxLay）2F8，其中A = Li，Na，K，Rb或Cs。 这些发光组合物中的一种或多种可以用作CT，PET或SPECT扫描仪的陶瓷或单晶转换器，或作为X射线增强屏幕的发光粉末层。
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公开(公告)号：US20230404252A1
公开(公告)日：2023-12-21
申请号：US18027650
申请日：2021-09-14
发明人： Lutz Christian GERHARDT , Priscilla BRANDAO SILVA , Nicolaas Petrus WILLARD , Mark Thomas JOHNSON , Lucas Petrus Henricus SCHEFFERS , Joyce VAN ZANTEN , Cornelis Reinder RONDA
CPC分类号： A46B17/065 , A46B2200/1066 , A46B17/04
摘要： An oral care system (10) comprises an oral care device (12). The oral care device is designed to either comprise or attach to a cleaning or treatment portion (14), e.g. a brush head or mouthpiece. The oral care device thus has a cleaning or treatment function. The oral care device is further provided with an electromagnetic (EM) field or radiation generator (22) adapted to generate and emit radio or microwave frequency electromagnetic energy in a space around an emitter arrangement (24) (sanitization area) used to emit the radiation or field. The EM emissions are configured to have electromagnetic properties suitable for heating water or water-containing fluid located within the sanitization area (34). This allows for a sanitization or disinfection function in a dedicated mode, wherein the EM emissions of the EM generator causes heating to a temperature of at least 50° C., preferably at least 70° C., of water on any surfaces of the cleaning or treatment portion located within the sanitization area, the heating having a sanitization or disinfection effect.
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5.发明申请公开(公告)号：US20200179858A1
公开(公告)日：2020-06-11
申请号：US16349308
申请日：2017-11-23
摘要： The present invention relates to a device and method for determining the pollution status of a particle filter (10) for an air-cleaning device (1) with increased accuracy at low extra costs. The device comprises a sheet resistance input (43) for obtaining sheet resistance information (21) indicating or allowing to determine an electrical sheet resistance of the particle filter (10); a humidity input (44) for obtaining humidity information (31) indicating the relative humidity of the filter's environment; and a processor (45) for comparing the electrical sheet resistance indicated by or determined from the obtained sheet resistance information (21) with a reference sheet resistance of a clean particle filter at the relative humidity (31) indicated by the obtained humidity information and given at the time of acquisition of said electrical sheet resistance and for generating, based on said comparison, a control signal (41) for control of the air-cleaning device and/or a status information (42) indicating the pollution status of the particle filter (10).
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公开(公告)号：US20230190433A1
公开(公告)日：2023-06-22
申请号：US17926183
申请日：2021-05-20
发明人： Lucas Petrus Henricus SCHEFFERS , Ravindra BHAT , Cornelis Reinder RONDA , Lutz Christian GERHARDT , Mark Thomas JOHNSON
CPC分类号： A61C17/228 , A46B9/045 , A46B15/0022 , A46B15/0028 , A61N1/40 , A61N1/0548 , A46B2200/1066
摘要： An oral cleaning unit, e.g. a head for an oral cleaning and/or treatment device, includes electrodes for generating an RF field for providing an oral cleaning and/or treatment function. The unit includes at least a first and second protruding structure, which protrude in a same general direction away from a base or support structure. Each comprises one or more electrodes. The protruding structures are arranged facing one another and separated by a space or gap which is configured so as to be able to receive a tooth pushed or inserted therein between the first and second protruding structures, and with the protruding structures extending on either side of the tooth, i.e. straddling the tooth. This allows the RF electrodes comprised by the protruding structures to reach to a location at least part way down side faces of the tooth, closer to interproximal spaces, enabling interproximal spaces to be better cleaned, and optionally also to be sensed using RF energy/fields interacting with dental features, when the electrodes are suitably driven by an RF signal.
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公开(公告)号：US20220331078A1
公开(公告)日：2022-10-20
申请号：US17640124
申请日：2020-08-28
发明人： Lutz Christian GERHARDT , Maria Estrella MENA BENITO , Ashoka Sathanur VISWESWARA , Cornelis Reinder RONDA , Lucas Petrus Henricus SCHEFFERS
摘要： There is provided a controller for a fluid-detection system, wherein the controller is configured to: determine if a user is interacting with the fluid detection system, wherein the determining comprises at least one of: determining whether a user is within a predetermined distance of the fluid detection system; determining whether a user is in physical contact with the fluid detection system; determining whether a fluid sensor of the fluid detection system is in a mouth of a user; and control the temperature of the fluid sensor of the fluid detection system based on the result of the determination. There is also provided a fluid based detection system comprising the controller, a device comprising the controller, a remote device comprising the controller, and a computer implemented method for controlling a fluid detection system, the method comprising the steps of: determining if a user is interacting with the fluid detection system, wherein the determining comprises at least one of: determining whether a user is within a predetermined distance of the system; determining whether a user is in physical contact with the fluid detection system; determining whether a fluid sensor of the fluid detection system is in a mouth of a user; and controlling the temperature of the fluid sensor of the fluid detection system based on the result of the determination.
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公开(公告)号：US20190154851A1
公开(公告)日：2019-05-23
申请号：US16300079
申请日：2017-05-27
摘要： In the present invention a direct X-ray conversion layer comprises a material having a perovskite crystal structure. This is preferable since this enables constructing an X-ray detector with edge-on illuminated detector elements.
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公开(公告)号：US20170205515A1
公开(公告)日：2017-07-20
申请号：US15326685
申请日：2015-07-10
发明人： Herfried Karl WIECZOREK , Cornelis Reinder RONDA , Hans-Aloys WISCHMANN , Pavel Georgiyevich BARANOV , Gaik ASATRIAN , Danil Olegovich TOLMACHEV
IPC分类号： G01T1/202
CPC分类号： G01T1/202
摘要： The invention relates to a characterization apparatus (1) for characterizing scintillator material (3) especially for a PET detector. A first radiation source (2) irradiates the scintillator material with first radiation (4) having a wavelength being smaller than 450 nm. Then, a second radiation source (5) irradiates the scintillator material with pulsed second radiation (6) having a wavelength being larger than 600 nm and having a pulse duration being equal to or smaller than 50 s, wherein a detection device (9) detects third radiation (12) from the scintillator material (3) during and/or after the irradiation by the second radiation. The third radiation depends on the amount of charge carriers trapped at electronic defects of the scintillator material such that it can be used as an indicator for the amount of electronic defects and hence for characterizing the scintillator material. This characterization can be performed relatively fast and in a relatively simple way.
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公开(公告)号：US20160312117A1
公开(公告)日：2016-10-27
申请号：US14915282
申请日：2014-12-16
发明人： Herfried Karl WIECZOREK , Cornelis Reinder RONDA , Jacobus Gerardus BOEREKAMP , Anne-Marie Andree VAN DONGEN , Sandra Johanna Maria Paula SPOOR , Daniela BUETTNER , Wilhelmus Cornelis KEUR
CPC分类号： C09K11/7774 , A61K51/00 , G01T1/2018 , G01T1/2023 , G01T1/2985
摘要： The present invention relates to a ceramic or polycrystalline scintillator composition represented by the formula (LUy-Gd3-y)(GxAI5-x)O12: Ce; wherein y=1±0.5; wherein x=3±0.25; and wherein Ce is in the range 0.01 mol % to 0.7 mol %. The scintillator composition finds application in the sensitive detection of ionizing radiation and may for example be used in the detection of gamma photons in the field of PET imaging.
摘要翻译： 本发明涉及由式（Luy-Gd3-y）（GxA15-x）O12：Ce表示的陶瓷或多晶闪烁体组合物; 其中y = 1±0.5; 其中x = 3±0.25; Ce为0.01摩尔％〜0.7摩尔％。 闪烁体组合物可用于电离辐射的敏感检测中，并且例如可用于PET成像领域的γ光子的检测。
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