Session details: Wearable systems and monitoring devices

Author(s):  
Gerald Bieber
Author(s):  
Isabel G. Trindade ◽  
José Machado da Silva ◽  
Rui Miguel ◽  
Madalena Pereira ◽  
José Lucas ◽  
...  

In this article we present the design and development of T-Shirt prototypes that embed novel textile sensors for the capture of cardio and respiratory signals. The sensors are connected through textile interconnects to either an embedded custom designed data acquisition and transmission unit or to snap fastener terminals for connection to external monitoring devices. Prototypes with diverse approaches of integration are presented. The performance of the wearable systems is addressed in terms of signal-to-noise ratio amplitude and signal interference caused by baseline wander and motion artifacts, through laboratorial tests with subjects in standing and walking conditions. Performance tests were also conducted in Hospital environment using a T-Shirt prototype connected to a commercial 3-channel Holter monitoring device. The textile sensors and interconnects were realized with the assistance of an industrial 6-needle digital embroidery tool and their resistance to wear addressed with normalized tests of laundering and abrasion. The main aspects of the system´s design leading to major improvements and failure factors are discussed. Pathways and methods for the overall system´s optimization are highlighted.


Author(s):  
M. A. Estudillo ◽  
David Naranjo ◽  
Laura M Roa ◽  
Javier Reina-Tosina

Many times, medical monitoring requires the use of wires that connect patients with monitoring devices and reduce their mobility and comfort at the same time that hamper the work of doctors and medical staff. The development of transmissions technologies based on wireless communications standards, like Bluetooth or Zigbee, does not conform optimal solutions to develop the communication links in the biomedical wearable systems because of the situation of overexploitation and saturation of the Industrial, Scientific and Medical (ISM) frequency bands, and also due to the consumption of their transceivers. This chapter presents both theoretical and application aspects of Intrabody Communications Technology (IBC) as an optimum solution for wireless communications in the wearable biomedical monitoring domain, which overcomes the previous inconveniences. The chapter is addressed by referencing dense scientific literature of the IBC technologies evolution till nowadays.


Author(s):  
Irwin Bendet ◽  
Nabil Rizk

Preliminary results reported last year on the ion etching of tobacco mosaic virus indicated that the diameter of the virus decreased more rapidly at 10KV than at 5KV, perhaps reaching a constant value before disappearing completely.In order to follow the effects of ion etching on TMV more quantitatively we have designed and built a second apparatus (Fig. 1), which incorporates monitoring devices for measuring ion current and vacuum as well as accelerating voltage. In addition, the beam diameter has been increased to approximately 1 cm., so that ten electron microscope grids can be exposed to the beam simultaneously.


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