Registrador de dados de temperatura DST centi-HRT ACT

de esterilizaçãode aceleraçãode frequência cardíaca

Implantable Heart Rate, Activity and Temperature Logger Overview of changes in animal activity and heart rate over time. Minimally invasive, leadless and simple to implant. Ideal for use in physiological and behavioral research on large animals. Leadless, Minimally Invasive The heart rate and activity logger DST centi-HRT ACT simultaneously measures long term heart rate, activity and body temperature in the animal. The measuring device has no external wires, which makes it especially simple to implant. The logger is hermetically sealed for biocompatibility. Application The logger is ideal for a variety of studies including those monitoring behaviour and stress response, in the fields of laboratory animal research, wildlife studies, animal welfare and fish physiology. Correlation Between Heart Rate and Activity Looking at heart rate and activity together gives researchers an opportunity to identify correlation between heart rate and activity in the animal, for example in stress response studies. The logger comes with the option of either two or three sensors: activity and temperature or activity, heart rate and temperature. Leadless ECG Derived Heart Rate The heart rate is derived from a leadless single channel ECG. As the electrodes are part of the housing the logger is especially easy to implant. The logger takes a burst measurement of ECG at the set time interval and calculates the mean heart rate for each recording. For validation purposes, each individual burst is graded with a QI (quality index) accessible in the application software. Overview of Changes in Animal Activity Over Time Measuring acceleration derived activity gives researchers the chance to monitor and get an overall view of changes in the study animals’ activity over time. The DST activity loggers measure acceleration in three dimensions, in relation to earth‘s gravity field. Stress-Free Long-Term Studies The activity logger has a battery life of over 19 months, with a sampling interval of 10 minutes. The logger is especially useful when a comprehensive data set throughout the research is needed with no disturbance to the animal. Single or multiple intervals There are two modes for sampling, either at a single interval throughout the period or multiple intervals. Multiple intervals are especially useful when frequent measurements are needed at certain time periods. Guaranteed accuracy and performance Every logger is individually calibrated and comes with a calibration certificate. The loggers’ accuracy and performance are guaranteed for one year after purchase. Simple in Use, From Setup to Data Retrieval The logger and the accompanying items are designed for ease of use throughout the research process, from setting up the logger, implanting it, to retrieving and analysing the data. The logger is supported by the Mercury software and a Communication Box which have to be purchased with the first order. Programming the logger To start the logger for measurements it is placed into a Communication Box and connected to the software. The Communication Box serves as an interface between the logger and a PC computer. In the application software, the user sets the start time, start date and sampling interval before starting the recorder. Multiple measurement intervals Different measurement intervals can be set for the same study. This is especially useful when more or less frequent measurements are needed at a certain time period, saving data space and battery. Memory and battery life calculations The software automatically calculates when memory fills based on certain interval settings, making it easier for the user to decide how to program the logger. Estimated battery consumption during that time period is also calculated. Uploading the Data After recovering the logger, the logger is inserted into the communication box and the recorded data is uploaded to the software. The results are displayed both in graphic and tabular form and the data can be exported to other programs. Reusable After retrieving the data the logger can easily be sterilized and reused as long as the battery lasts. Current battery life can be viewed in the software and the user can get an estimate of how long the logger memory and battery will last in a planned research. All Star-Oddi loggers are hermetically sealed and leak proof. Therefore the battery is not replaceable. Key features Leadless, minimally invasive Small, size 46mm x 15mm and 19g Correlation between heart rate and activity Stress-free long-term studies Guaranteed accuracy and performance Accessories Communication box: Serves as an interface between the logger and a PC computer. Used for connecting to the DST, when starting the logger and retrieving data. DST is inserted into the hole of the box for wireless communications. The box comes with a USB cable for connecting to a PC computer. Mercury software: Graphical Windows supporting software for the laboratory and wildlife sectors. Offers various options for measurement setup and graphical and tabular view of retrieved data. The data can easily be exported to other programs and all updates are free of charge. Implantation Due to the leadless design and small size of the loggers, implantation is simple and minimally invasive. For the best ECG signal, it is recommended to implant the heart-rate logger subcutaneously close to the heart. The DST centi-ACT is suitable for large animals, such as cattle, sheep, pigs and bears. The loggers can be sterilized and reused for as long as the battery lasts. Not all sterilization methods are suitable; this includes methods where temperature exceeds 60°C. Technical Specifications Sensors: Heart rate, Activity (3-axes acceleration), Temperature Size (Diameter x Length): 15mm x 46mm Housing Material: Alumina (Ceramic) Weight (in Air/in Water): 19g/12g Data Resolution: 12 bit (Temperature), 13 bit (Acceleration) Acceleration Resolution: 2mg Temperature Range: 5°C to +45°C (41°F to 113°F)* Temperature Resolution: 0.032°C (0.058°F) Temperature Accuracy: +/-0.2°C (0.36°F) Memory Type: FLASH Memory Capacity: 99,863 measurements per sensor (if all parameters are recorded simultaneously) Memory Capacity Bytes: 2,097,152 bytes / HR+T 3 bytes, acceleration statistics 18 bytes Measurement Interval: User specified in minutes or hours Minimum Measurement Interval: 2 minutes (T+HR+ACT,T+HR,T+ACT) Multiple Intervals Option: Up to 7 different intervals Measurement Options (Primary/Secondary): T+HR OR T+ACT OR T+HR+ACT Heart Rate (HR): ECG Sampling Frequency: 80-800Hz Data Retention: 25 years Clock: Real time clock. Accuracy +/-1 min/month. Communications: Communication Box, wireless transmission when DST is placed in the box. Connection to PC: USB cable Attachment Hole: 0.9 mm (diameter) Battery Life: 2-17 months** Replaceable Battery: No Duration of HR Measurement: 600 or 1500 ECG samples Accelerometer Sampling Frequency: 0.03Hz-10Hz Duration of ACT Measurement: 1 minute *Outside ranges available upon request**For sampling interval of 2-20 minutes; ECG sampled at 600Hz, Activity 1Hz over 1 minute. Battery is non-replicable and non-rechargeable.Warranty: 12 monthsSpecifications may change without notice.