Implant communication - out of the lab, into patients

2009 ◽  
Author(s):  
H. Higgins
Keyword(s):  
Implant Communication

scholarly journals Feasibility of Backscatter Communication Using LoRAWAN Signals for Deep Implanted Devices and Wearable Applications

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6342
Author(s):  
Marc Lazaro ◽  
Antonio Lazaro ◽  
Ramon Villarino
Keyword(s):  
High Sensitivity ◽  
The Body ◽  
Communication Service ◽  
High Radiation ◽  
Backscatter Communication ◽  
Rate Transmission ◽  
Adjacent Channels ◽  
Implant Communication ◽  
Data Rate Transmission ◽  
Implanted Devices

This paper presents a method for low data rate transmission for devices implanted in the body using backscattered Long Range (LoRa) signals. The method uses an antenna loaded with a switch that changes between two load impedances at the rate of a modulating oscillator. Consequently, the LoRa signal transmitted by a LoRa node is reflected in the adjacent channels and can be detected with a LoRa gateway tuned to the shifted channels. A prototype developed to operate at Medical Implant Communication Service (MICS) and the Industrial Scientific and Medical (ISM) 433 MHz band is presented. The prototype uses a commercial ceramic antenna with a matched network tuned to the frequency band with high radiation efficiency. The effect of the coating material covering the antenna was studied. Simulated and experimental results using a phantom show that it is feasible to read data from deep implanted devices placed a few meters from the body because of the high sensitivity of commercial LoRa receivers.

Comparison of Implantable Antennas for Cardiovascular Patients

2015 ◽  
Vol 781 ◽  
pp. 595-598 ◽  
Author(s):  
Pichitpong Soontornpipit
Keyword(s):  
Detailed Analysis ◽  
Medical Devices ◽  
The Body ◽  
Communication Services ◽  
Cardiovascular Patients ◽  
Implantable Antennas ◽  
Mics Band ◽  
Comparative Results ◽  
Folded Dipole ◽  
Implant Communication

Implantable device cardiac observation (ICDO) such as pacemaker requires communication with medical devices outside the body in order to monitor or control the parameters of the organ it is supporting. Three types of implantable antennas have been investigated to determine their performances on two patient conditions: normal and hyperglycemia. Folded dipole, serpentine microstrip, and waffle-type Planar Inverted-F (PIFA) antennas are operated in the 402-405 MHz, which is medical implant communication services (MICS) band. Detailed analysis of the design issues of the antennas and comparative results of simulations and measurements are presented.

scholarly journals Review of Medical Implant Communication System (MICS) band and network

ICT Express ◽  
2016 ◽  
Vol 2 (4) ◽  
pp. 188-194 ◽  
Author(s):  
Mohd Noor Islam ◽  
Mehmet R. Yuce
Keyword(s):  
Communication System ◽  
Medical Implant ◽  
Mics Band ◽  
Implant Communication

A 260-μW Down-Conversion Demodulator for MICS-Band Receiver

2016 ◽  
Vol 26 (02) ◽  
pp. 1750027 ◽  
Author(s):  
Chia-Hung Chang ◽  
Cihun-Siyong Alex Gong ◽  
Jian-Chiun Liou ◽  
Yu-Lin Tsou ◽  
Feng-Lin Shiu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Cmos Process ◽  
Communication Services ◽  
Ultra Low Power ◽  
Resistive Feedback ◽  
Mics Band ◽  
Down Conversion ◽  
Implant Communication

This paper showcases a low-power demodulator for medical implant communication services (MICS) applications. Complementary shunt resistive feedback, current reuse configuration, and sub-threshold LO driving techniques are proposed to achieve ultra-low power consumption. The chip has been implemented in standard CMOS process and consumes only 260-[Formula: see text]W.

scholarly journals Enhancing the Performance of Medical Implant Communication Systems through Cooperative Diversity

2010 ◽  
Vol 2010 ◽  
pp. 1-10 ◽  
Author(s):  
Barnabás Hegyi ◽  
János Levendovszky
Keyword(s):  
Cooperative Communication ◽  
System Performance ◽  
Communication Systems ◽  
Communication Channel ◽  
Cooperative Diversity ◽  
Communication Link ◽  
Medical Implants ◽  
Medical Implant ◽  
Cardioverter Defibrillators ◽  
Implant Communication

Battery-operated medical implants—such as pacemakers or cardioverter-defibrillators—have already been widely used in practical telemedicine and telecare applications. However, no solution has yet been found to mitigate the effect of the fading that the in-body to off-body communication channel is subject to. In this paper, we reveal and assess the potential of cooperative diversity to combat fading—hence to improve system performance—in medical implant communication systems. In the particular cooperative communication scenario we consider, multiple cooperating receiver units are installed across the room accommodating the patient with a medical implant inside his/her body. Our investigations have shown that the application of cooperative diversity is a promising approach to enhance the performance of medical implant communication systems in various aspects such as implant lifetime and communication link reliability.

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