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公开(公告)号：US20220071502A1
公开(公告)日：2022-03-10
申请号：US17416074
申请日：2019-12-13
发明人： Wouter Herman PEETERS , Mark Peter Paul KLEIJNEN , Tim Patrick STEUNEBRINK , Gerardus Johannes Nicolaas DOODEMAN , Rick BEZEMER , Carlijn Andrea VERNOOIJ , Ercan Ferit GIGI
IPC分类号： A61B5/05
摘要： An inductive sensing system (8) is adapted to apply electromagnetic excitation signals into a body, the system comprising a resonator circuit (10) incorporating a loop antenna (12). The system senses signals returned back from the body with the same antenna, based on variation in electrical characteristics of the resonator circuit. The system is configured for separating signals received from different physiological sources within the body. This is performed based on detecting in the resonator circuit electrical characteristics indicative of both a real and an imaginary part of an additional inductance component added to the antenna by received electromagnetic signals. The separating the signals from different physiological sources is based on relative magnitudes of said detected real and imaginary inductance components added to the resonator circuit by the returned signals.
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公开(公告)号：US20190117159A1
公开(公告)日：2019-04-25
申请号：US15551720
申请日：2016-02-23
IPC分类号： A61B5/00 , A61B5/1455
CPC分类号： A61B5/6838 , A61B5/0002 , A61B5/02427 , A61B5/02438 , A61B5/14552 , A61B5/6816 , A61B5/6819 , A61B5/6826 , A61B5/6843
摘要： A device (10, 10′, 10″) includes a light source (12) and a light detector (14) spaced from, and in communication with, the light source (12). An electronic processor (18) is programmed to compute pulse oximetry data from output of the light detector (14). A clamping member (26) is included, on or in which the light source (12) and the light detector (14) are disposed. The clamping member (26) is configured for attachment to a human body part with the body part disposed between the light source (12) and the light detector (14) such that light from the light source (12) passes through the body part to reach the light detector (14). The clamping member (26) is configured to attach to the body part by transitioning from a first stable state to a second stable state via a compression force applied to the clamping member (26).
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公开(公告)号：US20210369204A1
公开(公告)日：2021-12-02
申请号：US17403226
申请日：2021-08-16
发明人： Wouter Herman PEETERS , Pavankumar Murli DADLANI , Ernest Roderick LAMAN , Ceren BAGATAR , Tom KASSENAAR , Sandra Liliana RAMIREZ HERRERA
IPC分类号： A61B5/00 , A61B5/1455
摘要： A wearable gear for holding a physiological sensor for monitoring a subject, such as a pulse oximeter. Said wearable gear being configured to automatically adjust the maximal length such that the predefined tension is obtained regardless of the size of the body part of the subject. The wearable gear comprises a tensioning element having a maximal length, a holding unit for holding the physiological sensor, the wearable gear further comprises a tension mechanism for tensioning the tensioning element to a predefined tension when at least partially around a body part of the subject, wherein the tension mechanism comprises i) a first part comprising a resilient material, and ii) a second part comprising a non-resilient material, and wherein the first part and the second part mechanically cooperate with each other to automatically adjust the maximal length such that the predefined tension is obtained regardless of the size of the body part.
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公开(公告)号：US20210321898A1
公开(公告)日：2021-10-21
申请号：US17273361
申请日：2019-08-28
发明人： Wouter Herman PEETERS , Jacobus Josephus LEIJSSEN , Gerardus Johannes Nicolaas DOODEMAN , Rick BEZEMER , Mark Peter Paul KLEIJNEN , Ronny Hubertus Johannes GROSFELD
摘要： An inductive sensing device comprises first (16) and second (24) loops, the first loop (16) being coupled with a capacitor to form a resonator circuit (20), and the resonator circuit and second loop being coupled via an active buffering component (28). The active buffering component provides voltage to current amplification, and an output of the buffering component drives a current in the second loop. Conductive lines forming each of the first and second loop parts are radially spaced apart.
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公开(公告)号：US20230000369A1
公开(公告)日：2023-01-05
申请号：US17939413
申请日：2022-09-07
摘要： The present invention relates to a device, system and method for determining pulse pressure variation of a subject. To enable more reliably determining pulse pressure variation of a subject the device comprises a signal input (11) configured to obtain an input signal representing a hemodynamic signal of the subject, a processor (12) configured to process the input signal and compute a pulse pressure variation and a signal output (13) configured to output the computed pulse pressure variation. The pulse pressure variation is computed by deriving a pulse height signal from the input signal, deriving a pulse height baseline and a de-trended pulse height signal from the pulse height signal as the ratio between the difference between extrema of the de-trended pulse height signal and the respective value of the pulse height baseline signal, and computing the pulse pressure variation from the de-trended pulse height signal and the pulse height baseline.
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公开(公告)号：US20190336014A1
公开(公告)日：2019-11-07
申请号：US16475394
申请日：2018-01-02
发明人： Wouter Herman PEETERS , Mark Peter Paul KLEIJNEN , Gerardus Johannes Nicolaas DOODEMAN , Rick BEZEMER , Jacobus Josephus LEIJSSEN , Ronny Hubertus Johannes GROSFELD
IPC分类号： A61B5/0265 , A61B5/00
摘要： The invention provides a magnetic inductive sensing system for sensing electromagnetic signals emitted from a body in response to electromagnetic excitation signals applied to the body. The electromagnetic signals are generated and sensed by the same loop resonator which comprises a single-turn loop antenna and a tuning capacitor. The loop antenna of the resonator and a signal generation means for exciting the resonator to generate excitation signals are together configured so as to optimize the value of a ratio between the radial frequency of the generated electromagnetic excitation signals and a reference frequency of the antenna, where the reference frequency is the frequency for which one wavelength of the generated excitation signals (waves) matches the circumferential length of the antenna. This ratio, which corresponds to a normalized radial frequency of the generated excitation signals, is maintained between a value of 0.025 and 0.50.
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公开(公告)号：US20160106352A1
公开(公告)日：2016-04-21
申请号：US14857957
申请日：2015-09-18
发明人： Wouter Herman PEETERS , Toeno VAN DER SAR , Egbertus Reinier JACOBS , Gilbert Martinus VERBEEK , Johannes Wilhelmus WEEKAMP
IPC分类号： A61B5/1455 , A61B5/024
CPC分类号： A61B5/14552 , A61B5/02433 , A61B5/02438 , A61B5/6833 , A61B2560/0412 , A61B2562/146 , A61B2562/164
摘要： An optical source for guiding light to a target of a patient includes at least one light source configured to emit red light and infrared light. The at least one light source is embedded within a light-conducting sheet. A photodistributor is spaced from the at least one light source. The photodistributor includes a light-emitting surface and at least one light-receiving surface optically coupled to the light-conducting sheet. The photodistributor is configured to discharge at least a portion of the emitted red light and at least a portion of the emitted infrared light into a target.
摘要翻译： 用于将光引导到患者的目标物的光源包括被配置为发射红光和红外光的至少一个光源。 所述至少一个光源嵌入在导光片内。 光分布器与至少一个光源间隔开。 光分布器包括发光表面和光学耦合到导光片的至少一个光接收表面。 光分配器被配置为将所发射的红光的至少一部分和所发射的红外光的至少一部分放射到目标中。
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公开(公告)号：US20210121091A1
公开(公告)日：2021-04-29
申请号：US17252988
申请日：2019-06-17
发明人： Gerardus Johannes Nicolaas DOODEMAN , Mark Peter Paul KLEIJNEN , Jacobus Josephus LEIJSSEN , Ronny Hubertus Johannes GROSFELD , Wouter Herman PEETERS , Rick BEZEMER
IPC分类号： A61B5/05
摘要： An inductive sensing device (22) is for sensing at two different frequencies. The device includes an antenna (24) which comprises at least two loop parts (30, 32), each loop part coupled to a different respective tuning capacitor (36a, 36b) to thereby provide different respective resonant frequencies for the first and second loop parts. The two loop parts are jointly connected to a shared input connection (38) for receiving driving signals for driving both antenna parts. A control means (44) controls a drive circuit (34) to supply the antenna, via the shared input connection, drive signals of each of the frequencies, implementing switching between the two.
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公开(公告)号：US20200260967A1
公开(公告)日：2020-08-20
申请号：US16651568
申请日：2018-09-18
IPC分类号： A61B5/026 , A61B5/024 , A61B5/00 , A61B5/0295
摘要： In a sensor system (12), output signals of at least one PPG sensor (14) are processed to derive a modified pulse amplitude variation (PAV) value, being modified to take account of a baseline variation of the PPG sensor output signal. In particular, the modified PAV is derived through performing a modification step (42) in which either: a baseline variation of the PPG sensor output is derived and combined with a previously derived PAV, or, a PPG sensor output is first processed to perform baseline variation compensation, in advance of then deriving a PAV from the compensated signal.
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公开(公告)号：US20190239809A1
公开(公告)日：2019-08-08
申请号：US16315681
申请日：2017-07-07
发明人： Wouter Herman PEETERS , Sandra Liliana RAMIREZ HERRERA , Ernest Roderick LAMAN , Ceren BAGATAR , Pavankumar Murll DADLANI MAHTANI , Suzanne Daniëlle VAN DER ZAAN-LANDWEHR JOHAN , Eckhardt Henricus Matheus SCHRAVEN
IPC分类号： A61B5/00 , A61B5/1455
CPC分类号： A61B5/6838 , A61B5/02416 , A61B5/14552 , A61B5/6826 , A61B2560/0443
摘要： The present invention relates to a device for measuring a physiological parameter of a human limb such as peripheral capillary oxygen saturation. The device comprises a body comprising a first body part and a second body part, which are movable relative to each other to define an opening with an adjustable size for receiving the limb therein, and a physiological sensor for interacting with the limb received in the opening, the sensor being attached to the body, wherein the first and second body parts are slidable or twistable relative to each other while at least partially engaging or intersecting each other, or wherein the first and second body parts are configured to form a clip having an L-shaped end section for at least partially enclosing the limb received in the opening, in order to adjust the size of the opening.
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