Abstract: Blood flow rate in the bloodstream of a live being is measured using glucose as an indicator continuously supplied to the bloodstream. A reference sample is taken in a selected of measured segment of the bloodstream and then, an indicator of known concentration and known flow is added to the bloodstream, while—with a time delay—there is performed the taking of at least one blood sample from a measuring point, located downstream, while the resulting flow rate through the measured segment is set on the basis of a functional relationship.

Abstract: A biological signal measuring system includes a sensor and a biological signal measuring apparatus configured to calculate a blood refill time of a living tissue of a subject. The sensor includes a pressure applying portion configured to apply pressure on the living tissue, a light emitter configured to emit light toward the living tissue, a light receiver configured to receive reflected light or transmitted light from the living tissue, a first light transmitting member made of a light transmitting material and having one side contacting the light emitter and the other side arranged to contact the subject, a second light transmitting member made of a light transmitting material and having one side contacting the light receiver and the other side arranged to contact the subject, and a light blocking member configured to block light between the light emitter and the light receiver.

Abstract: An implantable medical device applies an electric signal to at least a portion of a heart in a subject. A resulting electric signal is collected from the heart and is used together with the applied signal for determining a cardiogenic impedance signal. The impedance signal is processed in order to estimate an isovolumetric contraction time, an isovolumetric relaxation time and an ejection time for a heart cycle. These three time parameters are employed for calculating a Tei-index of the heart. The Tei-index can be used as myocardial performance parameter in heart diagnosis and/or cardiac therapy adjustment.

Abstract: A system is disclosed including a measuring device comprising at least one sensor configured to collect data from a user based on the sensor being at least one of in contact with and proximate to a section of skin of the user, a stress feature analyzer configured to determine at least one of cardiovascular activity of the user, skin conductance of the user, movement of the user, and skin temperature of the user based on data collected with the measuring device, and a stress classifier configured to classify and report stress based on at least one of the cardiovascular activity, the skin conductance, and a combination of the cardiovascular activity and the skin conductance, wherein when at least one of skin temperature and movement of the user exceeds a defined threshold, the stress classifier ceases to classify stress. A method and a non-transitory processor readable storage medium are also disclosed.

Abstract: A liner system (500) for use with a blood pressure cuff (500) includes a plurality of layers (503,504,505,506) of material arranged in a stack (502). Each layer of material can be peelable from other layers of material such that an uppermost layer of the stack can be peeled from the stack after use to reveal a next uppermost layer of the stack. Each layer of material can include a tab (517,518,519,520) to facilitate peeling the each layer of material from the stack. The tabs can be staggered from other tabs of the stack. The lowermost layer of the stack can include a fixative (1228) to attach the stack to an inner surface (202) of the blood pressure cuff. The liner system prevents the cross-contamination between patients.

Abstract: A biological information detecting device includes: a pulse wave information measuring unit that measures pulse wave information of a subject; an event determination unit that determines whether or not a syncope event including a sign of syncope and development of syncope has occurred in the subject based on the measured pulse wave information; and a control unit that, when it is determined that the syncope event has occurred, performs at least one of storage processing of the pulse wave information at the time of the occurrence of the syncope event and the syncope event notification processing.

Abstract: Systems and methods are disclosed to measure a PPG signal. In some embodiments, a method may include capturing a plurality of frames of a subject; tracking the position of a region of interest of the subject in each of the plurality of frames; creating a first time series signal, a second time series signal, and third time series signal corresponding with respective color channels of the plurality of frames; normalizing the first, second, and third time series signals, combining the normalized first time series signal, the normalized first time series signal, and the normalized first time series signal into a combined signal; creating a spectral signal from the combined signal; and extracting the PPG signal from the spectral signal.

Abstract: Wearable pulse pressure wave sensing devices are presented that generally provide a non-intrusive way to measure a pulse pressure wave travelling through an artery using a wearable device. In one implementation, the device includes an array of pressure sensors disposed on a mounting structure which is attachable to a user on an area proximate to an underlying artery. Each of the pressure sensors is capable of being mechanically coupled to the skin of the user proximate to the underlying artery. In addition, there are one or more arterial location sensors disposed on the mounting structure which identify a location on the user's skin likely overlying the artery. A pulse pressure wave is then measured using the pressure sensor of the array closest to the identified location.

Abstract: A system and method is configured for use with an endoscope, a biopsy needle, and a data acquisition system. The system includes a sensor tip and a pressure sensor coupled to the sensor tip and having at least one piezo-resistor component with an internal-facing side and an external-facing side, and an opening adjacent to the at least one piezo-resistor component to allow fluid access to the internal-facing side and the external-facing side. The system also includes a tubing member with a distal end and a proximal end, the sensor tip coupled to the distal end, the sensor tip and the tubing member configured to be routed through the biopsy needle and connection elements coupled to the proximal end of the tubing member, the connection elements configured to mount the tubing member relative to the biopsy needle and to couple the pressure sensor to the data acquisition system.

Abstract: A pressure sensing apparatus has a pressure sensor component that includes a pressure sensing port, a pressure sensor for sensing a pressure of a fluid in the pressure sensing port, and a digital processor communicating with the pressure sensor for performing calculations involving fluid pressures sensed. The pressure sensing apparatus further includes a first chamber in fluid contact with the pressure sensing port, a second chamber fluidically connectable with a patient's cerebrospinal fluid system, and a membrane located between the first and second chambers so as to transmit fluid pressure from the second chamber to the first chamber.

Abstract: This invention is directed to materials and devices for sensing bio-potential signals from animals, particularly to sensing bio-potential signals to monitor humans in the medical field. In general, bio-potential sensors may be attached to the body of an animal, such as a human, in order to receive bio-potential signals such that information about the bioelectrical properties of the cells and/or tissues of the animal may be gathered. The bio-potential sensor may generally include a dry electrode that may be placed in contact with the skin of an animal to receive bio-potential signals from the animal. A dry electrode may generally include an electrically conductive solid material which may conduct electrical signals from an animal.

Abstract: The present invention is directed to an automatable method for directing electrophysiology catheter movement toward the site of arrhythmia origin using the cardiac activation sequence measured during arrhythmia and during pacing. The purpose of this method is to improve the speed and accuracy of localizing the site of arrhythmia origin for the purpose of targeting therapeutic ablation of the arrhythmia.

Abstract: Technology for processing an electrocardiograph (ECG) signal is disclosed. The ECG signal can be identified, wherein the ECG signal is affected by baseline wander noise. Signal processing can be performed on the ECG signal affected by baseline wander noise in order to determine a start time and an end time for individual waveforms in the ECG signal affected by baseline wander noise. Features for the individual waveforms in the ECG signal can be extracted, wherein the features indicate one or more cardiac function metrics.

Abstract: An automatic method of determining local activation time (LAT) from at least four multi-channel cardiac electrogram signals including a ventricular channel, a mapping channel and a plurality of reference channels. The method comprises (a) storing the cardiac channel signals, (b) using the ventricular and mapping channel signals and a first reference channel signal to compute LAT values at a plurality of mapping-channel locations, (c) monitoring the timing stability of the first reference channel signal, and (d) if the timing stability of the monitored signal falls below a stability standard, using the signal of a second reference channel to determine LAT values. Substantial loss of LAT values is avoided in spite of loss of timing stability.

Abstract: A device for long term sensing and recording electrocardiogram includes a housing body, electrodes, a processing circuit, a water-proof film and at least one flexible attach layer. The housing body includes an upper body and a lower body sealed to form an internal space for enclosing the processing circuit. The middle portion of the water-proof film is sandwiched between the upper body and the lower body, and the outer portion of the water-proof film is attached to a person's skin to form a water-proof region. The flexible attach layer is beneath the water-proof film, and the electrodes penetrate the housing body to electrically connect the processing circuit. The electrodes sense electrocardiogram information, which is processed and recorded by the processing circuit. The device is suitable to wear for a long term without any interference such that the user does not feel uncomfortable even during showering, exercising or sleeping.

Abstract: An anatomical mapping system and method includes mapping electrodes configured to detect activation signals of cardiac activity. A processing system is configured to record the detected activation signals and generate a vector field for each sensed activation signal during each instance of the physiological activity. The processing system determines an onset time and alternative onset time candidates, identifies an initial vector field template based on a degree of similarity between the initial vector field and a vector field template from a bank of templates, then determines an optimized onset time for each activation signal based on a degree similarity between the onset time candidates and initial vector field template.

Abstract: A method for use in performing impedance measurements on a subject. The method includes, in a processing system, determining at least one first impedance value, measured at a site using a first electrode configuration, determining at least one second impedance value, measured at the site using a second electrode configuration, and determining the presence, absence or degree of an anomaly using the first and second impedance values.

Abstract: A method and device for measuring biometric data using a UWB radar are disclosed. The disclosed method includes: (a) determining a respiratory rate by using reflection signals reflected off a target patient; (b) extracting respiration signals from the reflection signals, removing the extracted respiration signals from the reflection signals and converting into signals of a frequency domain; and (c) determining a heartbeat rate by detecting peak values from the frequency-domain signals converted in said step (b).

Abstract: A wrist-wearable body composition measuring device includes a main body; a strap connected to the main body; a first input electrode and a first output electrode which are provided on an inner surface of the strap and configured to contact a wrist of a subject; a second input electrode and a second output electrode which are provided on an outer surface of the strap; a measuring unit configured to measure a body impedance of the subject by applying current to the first input electrode and the second input electrode and detecting a voltage generated between the first output electrode and the second output electrode in response to the applied current; and a processor configured to analyze a body composition of the subject based on the body impedance measured by the measuring unit.

Abstract: A magnetic resonance system (MRS), useful for imaging a patient, comprising: (a) a magnetic resonance device (MRD) for imaging a patient, comprising an open bore, the MRD at least partially contained in an envelope comprising in its circumference at least one recess; and, (b) an MRI-safe cart made of MRI-safe material, comprising a substantially horizontal base and at least one substantially horizontal incubator above the base, the base and the incubator are interconnected by at least one pillar. At least a portion of the cart and the MRD are configured to fit together such that at least a portion of the incubator is reversibly housed within the MRD, and further at least a portion of the base is reversibly housed within at least one recess.

Abstract: A maneuverable RF coil assembly, useful for being maneuvered at both positions: (i) over at least a portion of a neonate immobilized within a cradle at time of MR imaging; and (ii) below or aside the cradle when it is not required for imaging. The maneuverable RF coil assembly comprises at least one RF coil and maneuvering mechanism. The maneuvering mechanism comprises both: (i) a linear reciprocating mechanism for approaching or otherwise drawing away at least one coil to and from the neonate; and (ii) tilting mechanism for placing at least one coil away from the neonate.

Abstract: Sensors are disclosed that detect whether a cannula is properly inserted to its full depth in a subject's skin. The sensors may be used with a blood glucose monitor, or with a continuous insulin infusion pump, infusion set, or other system involving intermittent or continuous testing and/or drug delivery.

Abstract: An example method includes applying a localization signal to a source electrode positioned within a conductive volume and a ground electrode at a known location. Electrical activity is sensed at a plurality of sensor electrodes distributed across an outer surface of the conductive volume. The locations of each of the sensor electrodes and the location of the ground electrode being stored in memory as part of geometry data. The electrical activity sensed at each of the sensor electrodes is stored in the memory as electrical measurement data. The method also includes computing a location of the source electrode by minimizing a difference between respective pairs of source voltages determined for the plurality of sensor electrodes. The source voltage for each of the sensor electrodes is determined based on the electrical measurement data and the geometry data.

Abstract: Certain implementations relate to an exhalation measurement device that is used in checking pulmonary function, diagnosing asthma, and may perform zero point correction accurately even when there is disturbance. The exhalation measurement device may comprise a flow regulator. The flow regulator comprises a first offset adjuster that puts an exhalation inflow component and an exhalation outflow component in a separated state and performs first offset adjustment of an inflow pressure sensor and an outflow pressure sensor, a voltage difference detector that puts the exhalation inflow component and the exhalation outflow component in a linked state and detects an output voltage difference after the first offset adjustment of the inflow pressure sensor and the outflow pressure sensor, and a second offset adjuster that uses the output voltage difference to perform second offset adjustment of the inflow pressure sensor.

Abstract: Systems and methods of monitoring posture and vital signs are disclosed. In some embodiments, the system includes a cushion on which a user can sit. The cushion includes a first optical fiber sensor, a second sensor, and a first computing device. The system may further include a second computing device communicatively coupled to the first computing device and configured to receive sensor data from the first computing device. One or both of the first and second computing devices may operate to combine a signal indicative of the movement of the user with a signal indicative of the direction of movement of the user to determine a posture of the user. The system may provide feedback based on the user's posture and recommend actions to improve posture. The system may further monitor the user's heart rate, respiration rate, or other vital signs.

Abstract: A system for psychoacoustic evaluation of tinnitus synthesizes a test sound that is customized for a patient using the patient's audiogram, a model of the tinnitus related to the patient's audiogram, a psychoacoustic loudness model, and various test-sound parameters. In various embodiments, the system automatically adjusts the intensity and spectral level of the test sound such that the intensity of the test sound as perceived by the patient remains approximately constant across various frequencies and/or sound types used in the psychoacoustic evaluation of tinnitus.

Abstract: A system for measuring tinnitus of a patient using a Bayesian minimum-entropy psychometric procedure for which a probabilistic model of the patient's behavior is combined with an optimal statistical-inference method to generate a test sound to be presented to the patient. The test sound includes a sequence of sound components selected and arranged to facilitate, expedite, and improve the reliability of tinnitus measurements.

Abstract: A method and a mobile app are disclosed for obtaining hemoglobin count in the blood of a mammal using digital images of the conjunctiva of the eye of the mammal taken with a camera of a mobile device running the mobile app. The mobile app carries out a method including: obtaining a color image of the conjunctiva of the eye using the digital camera; computing an R/B ratio and a Y/I ratio of the color image; normalizing the R/B ratio and the Y/I ratio using color image normalization parameters obtained using a master camera so as to provide a R/B true ratio and a Y/I true ratio; and using the R/B true ratio and the Y/I true ratio as inputs to respective look-up tables created using the master camera so as to provide an accurate measure of blood hemoglobin count.

Abstract: The invention is provided to suppress a deterioration in the accuracy of measuring a component in a test object, which is caused by temperature variation due to irradiation with light. A blood sugar level measurement apparatus 10 includes a light emitting unit 110 that emits light toward a test object, a light receiving unit 112 that receives light that has been emitted by the light emitting unit 110 and has been reflected within or has passed through the test object, a light emission control unit 204 that performs control so as to cause the light emitting unit 110 to repeat a light emission state and a light extinction state, and a blood sugar level calculation unit 214 serving as a measurement unit that measures a component in the test object by using a result of light reception by the light receiving unit 112.

Abstract: A living body measuring light source system of a living body measurement apparatus outputs light with a power spectrum as measurement light, in which the light intensity of a characteristic bandwidth including a wavelength (a cause of a local small S/N ratio), which is likely to be absorbed in a known light absorption and scattering wavelength characteristic of a measurement-target living body that is a living body as a measurement target, is set to be higher than that of other bandwidths.

Abstract: Sensor devices including dissolvable tissue-piercing tips are provided. The sensor devices can be used in conjunction with dissolvable needles configured for inserting the sensor devices into a host. Hardening agents for strengthening membranes on sensor devices are also provided. Methods of using and fabricating sensor devices are also provided.

Abstract: Systems and methods for a continuous monitoring of analyte values received from an analyte sensor system are provided. One method for a wireless data communication between an analyte sensor system and a mobile device involves storing identification information associated with a transceiver of the analyte sensor system, the identification information entered by a user of the mobile device via a custom application running on the mobile device; causing the custom application to enter a background mode; searching for advertisement signals; receiving an advertisement signal from the transceiver; authenticating the transceiver based on the identification information; prompting the user to bring the custom application to a foreground mode; causing the custom application to request a confirmation from the user that a data connection with the transceiver is desired; receiving the confirmation from the user; and completing the data connection with the transceiver.

Abstract: A near-infrared oxygen concentration sensor for palpation 1 to be attached to a finger pad on a leading end side from a distal interphalangeal joint of a use's finger includes: a base material 2 to be attached to a finger pad; a light emitting unit 4 that is disposed on the base material and that emits light having at least two wavelengths, including near-infrared light, to a test subject; light receiving units 5a and 5b that are disposed on the base material and that receives a measurement light from the light emitting element through the test subject; and a light receiving unit 3 that is disposed at least between the light emitting unit or the light receiving unit and the finger pad and that prevents the measurement light having passed through the user's finger from being led to the light receiving unit.

Abstract: Sensor devices including dissolvable tissue-piercing tips are provided. The sensor devices can be used in conjunction with dissolvable needles configured for inserting the sensor devices into a host. Hardening agents for strengthening membranes on sensor devices are also provided. Methods of using and fabricating sensor devices are also provided.

Abstract: An apparatus for obtaining and analyzing a blood sample is presented. The apparatus comprises an integrated drive unit having a common drive source and a drive force transmission gearing that couples a lancet drive, a device for advancing a magazine, and a sample transfer device to the drive source. A tensioning rotor and a drive rotor are mounted so that they are rotatable coaxially to one another. A first cam control converts the rotation of the drive rotor into a radial forward and reverse movement of a drive rod. A second cam control converts the rotational movement of the tensioning rotor into a linear movement of a link slide. A switching link moved by the link slide rotates the magazine an additional step. A third cam control converts the rotational movement of the tensioning rotor into a linear movement of a pressure tappet perpendicular to the piercing axis.

Abstract: A regulator for in-line modulation of the flow rate of fluid during blood collection includes a fluid transfer device for transferring fluid from a patient to a collection device. The fluid transfer device comprises a fluid passageway defined by a tubular sidewall and a flexible member associated with a portion of the tubular sidewall. The flexible member is configured for movement with respect to the fluid passageway upon exposure of the fluid transfer device to a differential pressure during a blood collection procedure to prevent collapse of a patients blood vessel. The flexible member of the regulator can be a frame surrounding a flexible diaphragm. Alternatively, the flexible member can include a flexible material integrally formed within the tubular sidewall of the pressure regulator.

Abstract: A specimen collection assembly (100) including a flow control member (106) for adjustably altering a flow path is disclosed. In one configuration, the flow control member (106) defines a regulation channel (166) in fluid communication with a lumen of a cannula (112), wherein the flow control member (106) is configured to adjustably alter an effective flow distance between the lumen of the cannula (112) and an interior of an evacuated collection container. In another configuration, the flow control member (106) is positioned to vary an effective cross-sectional area of at least one of an inlet port (346) and an outlet port (350) adapted to be in fluid communication with the lumen and the evacuated collection container.

Abstract: A crank angle indicating system is provided for a pedaling device. The crank angle indicating system may include a crank angle detector configured to detect a crank angle of a crankshaft of a pedaling device, and an indication device configured to output at least one of an aural and a haptic indicator when a predetermined crank angle is reached, allowing a cyclist to time the application or release of force to the pedals accordingly.

Abstract: A system and method for assessing patient movement for Parkinson's disease includes capturing a video of a subject performing a finger tapping sequence comprising a predetermined number of open and close periods. According to an exemplary embodiment, a system and method includes extracting a region of interest for each frame of the video and generating a projection of the region of interest for each frame of the video using perpendicular vector projections in a direction or plurality of directions.

Abstract: An intervertebral foramen position detection unit detects positions of intervertebral foramens in a three-dimensional medical image including plural vertebrae. In this case, for example, a feature value representing a likelihood of an intervertebral foramen is used. A vertebra identification unit identifies each of the plural vertebrae by using the detected positions of the intervertebral foramens, respectively.

Abstract: Technologies for the sensing of biofeedback signals of a user include a body area network (BAN) system comprising one or more biofeedback sensors and one or more BAN controllers. The biofeedback sensors are configured to sense BAN signals, which may include biofeedback signals and body-coupled communication (BCC) signals. To facilitate communication, the biofeedback sensors may demultiplex the sensed BAN signals into biofeedback signals and incoming BCC signals. Similarly, the biofeedback sensors may multiplex outgoing BCC signals with sensed biofeedback signals. The BAN controller may communicate in a similar manner. Additionally, the BAN controller may process incoming BCC signals and provide feedback to the user based on BCC signals received from the biofeedback sensors.

Abstract: A wearable device having active feedback characteristics for physiological nursing, and a system and a method thereof are provided. A physiological sensing device is configured to sense a physiological sensing signal of a wearer, and the wearable device actively applies a preset functional response corresponding to the wearer when the physiological sensing signal is not within a safe range to enable the physiological sensing signal returning to a stable state. Disclosed actively and determinedly provides an instant response which enables the wearer's physiological condition being controlled in a relative stable state, providing a pretreatment in no time to wait the follow-up aid, or deciding to do other treatments independently.

Abstract: A computer system and method is disclosed as a support structure for patients with hypertension or prehypertension to encourage life style changes leading to dietary control, increase exercise and blood pressure control. The method includes automated messages and responses delivered in real time to encourage appropriate actions by the patient. A diary feature is provided for user input of various relevant parameters, such as foods consumed, exercise activities, body weight, blood pressure, and heart rate. The computer system and method may be implemented on a mobile computing device, such as a smart phone or wearable, a conventional personal computer, or a web service. Most functions will be provided on the mobile device, but some housekeeping and data visualization functions may be limited to the personal computer or web service implementations.

Abstract: Disclosed is a device for sleep monitoring, which includes a detecting module, a processing module electrically connected with the detecting module and an output module electrically connected with the processing module. The detecting module is used for collecting physiological feature signals which represent sleep state of user, the physiological feature signals include one or more than one of heart rate feature signals which represent the heart rate of user and respiration feature signals which represent the respiration of user; the processing module is used for processing the physiological feature signals from the detecting module so as to obtain evaluation results of sleep of user; and the output module is used for outputting the evaluation results of sleep from the processing module. By collecting the physiological feature signals which represent the heart rate and/or respiration of user during sleep, the sleep quality of user can be evaluated accurately.

Abstract: An orthopedic implant having an energy-harvesting device is disclosed. In one embodiment the orthopedic implant is a prosthetic component of a joint of the muscular-skeletal system. The orthopedic implant can include electronic circuitry, a power source, and one or more sensors for measuring a parameter of the muscular-skeletal system or a parameter of in proximity to the implant. The energy-harvesting device generates charge for powering the electronic circuitry using movement of the muscular-skeletal system. The energy-harvesting device comprises a piezo-electric element that converts changes in force into charge that is stored onto a storage device. The energy-harvesting device is coupled to the patella of a knee joint. Movement of the knee joint changes a force applied to the energy-harvesting device thereby generating charge that is coupled to circuitry in a prosthetic component of the knee joint.

Abstract: Features are disclosed relating to determining an activity in which a user is (or has been) engaged. One such activity is the taking of steps (e.g., walking or running). Some embodiments described herein are directed to accurate detection and counting of steps made by a user wearing a device with step-detection functionality. The accurate step counting can be facilitated by detecting signatures of certain activities, and determining whether to count steps based on an analysis of acceleration data over various intervals and moving windows of time.

Abstract: A wearable sensing band is presented that generally provides a non-intrusive way to measure a person's cardiovascular vital signs including pulse transit time and pulse wave velocity. The band includes a strap with one or more primary electrocardiography (ECG) electrodes which are in contact with a first portion of the user's body, one or more secondary ECG electrodes, and one or more pulse pressure wave arrival (PPWA) sensors. The primary and secondary ECG electrodes detect an ECG signal whenever the secondary ECG electrodes make electrical contact with the second portion of the user's body, and the PPWA sensors sense an arrival of a pulse pressure wave to the first portion of the user's body from the user's heart. The ECG signal and PPWA sensor(s) readings are used to compute at least one of a pulse transit time (PTT) or a pulse wave velocity (PWV) of the user.

Abstract: Disclosed is a body impedance measurement apparatus. The impedance measurement apparatus provides a plurality of electrodes for measuring body impedance, senses electrodes, contacting with a body, from among the plurality of electrodes, and determines the use of the electrodes contacting with the body, depending on the sensing result.

Abstract: A posture monitoring device 10 for use with a seat 100 comprises at least two pressure sensors 18, 20, a mount 12 for movably securing the pressure sensors 18, 20 to a seat back 102, the mount 12 including a hook for fitting over the seat back 102, and output means 22 for alerting when the pressure measured on at least one of the pressure sensors 18, 20 falls outside of a predetermined range.

Abstract: A vital information measurement device and a vehicle seat which improves the durability of sheet-shaped sensors configured to detect vital information of a seated passenger can stably measure the heart rate of the seated passenger. A vehicle seat includes sheet-shaped sensors attached to a seat back, and can measure the heart rate of a seated passenger based on vital signals of the seated passenger detected by the sheet-shaped sensors. At each sheet-shaped sensor, a sensor overlap reduction section is provided to reduce partial overlapping of the sheet-shaped sensor when the seated passenger leans on the seat back. Specifically, each sheet-shaped sensor includes a first cutout extending toward the center of the sheet-shaped sensor at an outer peripheral portion of the sheet-shaped sensor, and a second cutout formed continuously from the first cutout and extending opposite to the center along the outer peripheral portion of the sheet-shaped sensor.