Transabdominal fetal pulse oximetry is an approach to measure oxygen saturation of the unborn child non-invasively. The principle of pulse oximetry is applied to the abdomen of a pregnant woman, such that the measured signal includes both, the maternal and the fetal pulse curve. One of the major challenges…
The fetal oxygen saturation is an important parameter to determine the health status of a fetus, which is until now mostly acquired invasively. The transabdominal, fetal pulse oximetry is a promising approach to
measure this non-invasively and continuously. The fetal pulse curve has to be extracted…
Monitoring the oxygen saturation of an unborn child is an invasive procedure, so far. Transabdominal fetal pulse oximetry is a promising method under research, used to estimate the oxygen saturation of a fetus noninvasively. Due to the nature of the method, the fetal information needs to be extracted…
This paper deals with the light transport, photon trajectory and its radiation in tissue. A model based on Monte Carlo simulation has been implemented in Matlab to get inside into photon interaction with tissue. The project is aimed to non-invasive pulse oximetry measurement of fetal oxygen saturation…
Modern intelligent prosthesis or robotic extremities use a combination of mechanically, hydraulically and electronically controlled components and joints for motion. For precise controlling, stepping motors are used. Here, passive movement of the extremity, like the lowering of the arm caused by the…
Knowing the location of special equipment is a big advantage in large hospitals. Active and intelligent removement detection helps to prevents theft and manipulation. Driven by just a coin battery, ultra low power modules extend the battery life to one month and more. An intelligent detection system…
The use of body given, self-sufficient energy sources can improve intelligent implants and prostheses to reduce stressful post-operations and check-ups. Energy harvesting using piezoelectric generators (PG) could take advantages of any movement of or in the human body to provide enough energy for wireless…
Energy harvesting is an increasingly important capability for a lot of applications. It can be used in biomedical implants but also in other embedded systems. An energy harvesting device needs a functional and efficient power management. Because of the low energy yield it is important to store the harvested…
For getting reliable information about the state of health from the fetus and the mother during labor and delivery, a fetal pulse oximeter is being developed. This paper describes the development of a special phantom to verify the algorithms for separating the weak fetal from the dominant maternal optical…
In modern medicine, monitoring devices for mobile application are using rechargeable power supplies. A new concept refers to energy scavenging techniques using heat emission from human body. This project deals with the development of a prototype and the feasibility study of a thermal harvester. A thermoelectric…
The goal of this work is to monitor the activity of neurons in order to better understand information distribution within neural networks. Unfortunately galvanic contact with electrodes can disturb cell growth. Therefore in vitro measurements without cell contact are preferred. Capacitive sensors offer…
Nowadays, economic globalisation is one of the strongest influences in the field of bioelectronics. Due to this, a solid symbiosis is increasing between research and economics. Especially small and medium-sized businesses (SMBs) expect to become and remain a part of this symbiosis. The sector of medical…
This contribution describes the development of a prototype that improves standard pulse oximetry to deep tissue penetration. It shows the setup of a control unit operating a high power triple LED driver with a high throughput of electrical power and governing a time table used for proper LED toggeling.…
Für die Glaukomfrühdiagnostik sollte der intraokulare Druck (IOP) bei Risikogruppen regelmäßig erfasst werden. Es soll ein intraokularer Mikrodrucksensor konzipiert werden, welcher eine periodische Aufzeichnung ermöglicht. Insbesondere bei Organen wie dem Auge ist die Implantatgröße stark limitiert.…