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Small Implantable Loggers for Biomedical Research (Temperature and Heart Rate)

Small Implantable Loggers for Biomedical Research (Temperature and Heart Rate)

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Star-Oddi is a leading manufacturer of biomedical research equipment, specializing in the design of temperature and heart rate sensors that are miniaturized, reliable and practical.

The Star-Oddi data loggers are ideal for studies where integrity and repeatability of the study is important.

Using a logger eliminates all caging restrictions and reduces start-up and labor costs.
 

Description
Ideal loggers for biomedical
The Star-Oddi loggers are small implantable recorders that measure heart rate and/or temperature with high accuracy and store real-time data in their internal memory, accessible after the trial. For several years the Star-Oddi loggers have been used by the biomedical industry in virology, vaccinology and in studies that require accurate measurements. All DSTs are delivered with calibration certificates to ensure compliance with GLP.
Heart rate measurements
The DST-HRT loggers simultaneously measure long term heart rate and core temperature. This makes them ideal for studies in which baseline and immunology responses are recorded; they are also suitable for toxicological, metabolic and thermoregulation studies. The heart rate is derived from a leadless single channel ECG in which the electrodes are part of the housing material, making the logger especially easy to implant. The logger then takes a burst measurement on any set time interval and calculates the mean heart rate for each recording. For validation purposes, each individual burst is graded with a certain quality index (QI) accessible in the accompanying application software.
Temperature measurements
The Star-Oddi DST temperature loggers are well suited for recording constant temperature throughout your research with no disturbance to the animal or the subject. Being able to measure core temperature without human interference reduces the stress placed on the animal circumventing any consequential fluctuations in the temperature profile. This may also result in a reduction of the number of laboratory animals used, with fewer animals needed to obtain reliable temperature data.

 

Features
Compact leadless design
Researchers appreciate the loggers small size, high accuracy and biocompatible material suitable for implantation. With the completely leadless design of the loggers the implantation surgery becomes minimally invasive.
Easy to use and reusable
The Star-Oddi loggers are simple in use, from setup and surgery to data retrieval. The measurement data can be analyzed in graphic and tabular form and exported to most statistical analysis programs. The same logger can be reused as long as the battery lasts. When data has been retrieved the temperature logger can easily be sterilized and reset for new recordings. We recommend using gas or ethanol sterilization for our loggers.
Committment to the 3Rs
The 3Rs ethical framework is implemented by Star-Oddi in its DST biomedical loggers series. Being able to measure core body temperature without human interference reduces the stress placed on the animal avoiding consequential fluctuations in the temperature profile. This can reduce the number of laboratory animals used, with fewer animals needed to get reliable temperature data. The DST-HRT is the only leadless heart rate monitor on the market which minimizes wound pain and trauma of implantation for the animal.

 

Specifications
  DST nano-T DST micro-T DST milli-T DST centi-T DST micro-HRT DST milli-HRT
Sensors Temperature Temperature Temperature Temperature Temperature,
heart rate
Temperature,
heart rate
Size: (diameter x
length)
6mm x 17.5mm 8.3mm x 25.4mm 13mm x 38.4mm 15mm x 46mm 8.3mm x 25.4mm 13mm x 38.4mm
Weight (in air/in water) 1.3g 3.3g 9.2g 19g 3.3g 11.8g
Battery life 9 months* 18 months* 3 years* 7 years* 4 months* 9.5 months*
Memory type Non-volatile
EEPROM
Non-volatile
EEPROM
Non-volatile
EEPROM
Non-volatile
EEPROM
Non-volatile
EEPROM
Non-volatile
EEPROM
Memory capacity 5248 measurements 43476 measurements 87000 measurements 174000 measurements 21844 measurements 21844 measurements
Data resolution 12 bits 12 bits 12 bits 12 bits 12 bits 12 bits
Min. measuring
interval
1 sec 1 sec 1 sec 1 min 1 min 1 min
Temperature range 5°C to 45°C
(32°F to 113°F)
5°C to 45°C
(32°F to 113°F)
5°C to 45°C
(32°F to 113°F)
5°C to 45°C
(32°F to 113°F)
5°C to 45°C
(32°F to 113°F)
5°C to 45°C
(32°F to 113°F)
Temperature
resolution
0.032°C (0.058°F) 0.032°C (0.058°F) 0.032°C (0.058°F) 0.032°C (0.058°F) 0.032°C (0.058°F) 0.032°C (0.058°F)
Temperature
accuracy
+/- 0.2 °C
(+/- 0.36°F)
+/- 0.2 °C
(+/- 0.36°F)
+/-0.1°C
(0.18°F)
+/-0.1°C
(0.18°F)
+/- 0.2 °C
(+/- 0.36°F)
+/- 0.2 °C
(+/- 0.36°F)
Temperature
response time
Time constant
(63%) reached in 8 sec.
Time constant
(63%) reached in 10 sec.
Time constant
(63%) reached in 12 sec.
Time constant
(63%) reached in 20 sec.
Time constant
(63%) reached in 20 sec.
Time constant
(63%) reached in 20 sec.
HR sampling freq         150-800hz 150-800hz
* For a sampling interval of 10 min.
Specifications are subject to change without notice.


 

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