Recent Advances on Implantable Wireless Sensor Networks

Dinis, Hugo; Mendes, Paulo

doi:10.5772/intechopen.70180

Cited by 8 publications

(11 citation statements)

References 90 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could eliminate the medical sensor nodes dependence on the battery power or may reduce the charge drawn from the battery 20 and extend the lifetime of wireless sensors. There are different methods of WPT, such as inductive 21 and capacitive coupling methods employed for short-distance power transfer; however, optical 22 and radio-frequency electromagnetic waves called RF-EH methods [23][24][25] are generally employed for larger-distance power transfer.…”

Section: Wireless Ehmentioning

confidence: 99%

SEE‐MAC: Spectrum and energy efficient‐medium access control protocol for Internet of Things

Pandit

Kumar

Thakur

et al. 2022

Int J Communication

View full text Add to dashboard Cite

Summary In this paper, we have devised a method for spectrum‐and energy‐efficient wireless communication systems for the Internet of Things (IoT) devices that require continuous uninterrupted power for their operation. However, the potential application of the proposed scheme is vast and is relevant to any wireless communication systems deployed for the next generation connected systems that face challenges in spectrum availability and battery charging of the devices. To fulfill the demand of wireless devices, such as sensor nodes deployed in the IoT, we have proposed a spectral‐and energy‐efficient‐medium access control (SEE‐MAC) protocol with a radio‐frequency energy harvesting (EH) facility. The proposed protocol has integrated wireless power harvesting with cognitive sensor nodes to provide both the energy‐ and spectrum‐efficient wireless communication system. In the proposed SEE‐MAC, the cognitive sensor nodes take the advantage of both the idle and active licensed channels of the primary network for data transmission and EH. The proposed system identifies the active licensed channel of the network to be allotted to each cognitive sensor node for EH and idle channel recognition for data transmission. The mathematical analysis has also been performed representing allocation of primary user channels for the EH and data transmission. The closed‐form expressions obtained along with simulation results have illustrated the amount of harvested energy, throughput, and energy efficiency achieved by the cognitive sensor nodes of the network.

show abstract

Section: Wireless Ehmentioning

confidence: 99%

SEE‐MAC: Spectrum and energy efficient‐medium access control protocol for Internet of Things

Pandit

Kumar

Thakur

et al. 2022

Int J Communication

View full text Add to dashboard Cite

show abstract

“…Currently different powering methods to make these devices as small as possible and to operate them indefinitely are available, as well as less power consuming communication methods and completely passive methods to be used in the case of extremely small devices. Furthermore, although communications, security issues and networking difficulties have been raised, it is highly probable that in the near future completely functional and tailored implantable sensors will become indispensable tools for health monitoring in both the hospital environment and daily life of patients [131].…”

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

“…In the case of in vivo sensing or stimulation for short periods of time, it is generally desirable to use implantable electronic devices characterised by both bioresorbability and wireless communication, to overcome the inflammation and infections associated with long-term implant utilization. Bioresorbable sensors would allow the elimination of the need of a secondary surgery for device extraction, and wireless communication would consent to avoid the use of transcutaneous wires, thereby minimizing the risk of infection, decreasing the costs of care and reducing distress and pain for the patient [131]. However, the fabrication of high-…”

Section: Concluding Remarks and Future Perspectivesmentioning

confidence: 99%

Wireless implantable and biodegradable sensors for postsurgery monitoring: current status and future perspectives

Santis

Cacciotti

2020

Nanotechnology

View full text Add to dashboard Cite

In in vivo postsurgery monitoring, the use of wireless biodegradable implantable sensors has gained and is gaining a lot of interest, particularly in cases of monitoring for a short period of time. The employment of biodegradable materials allows the circumvention of secondary surgery for device removal. Additionally, the use of wireless communication for data elaboration avoids the need for transcutaneous wires. As such, it is possible to prevent possible inflammation and infections associated with long-term implants which are not wireless. It is expected that microfabricated biodegradable sensors will have a strong impact in acute or transient biomedical applications. However, the design of such high-performing electronic systems, both fully biodegradable and wireless, is very complex, particularly at small scales. The associated technologies are still in their infancy and should be more deeply and extensively investigated in animal models and, successively, in humans, before being clinically implemented. In this context, the present review aims to provide a complete overview of wireless biodegradable implantable sensors, covering the vital signs to be monitored, the wireless technologies involved, and the biodegradable materials used for the production of the devices, as well as designed devices and their applications. In particular, both their advantages and drawbacks are highlighted, and the key challenges faced, mainly associated with fabrication techniques, and control over degradation kinetics and biocompatibility of the device, are reported and discussed.

show abstract

“…Energy harvesters for implantable devices can be divided in several categories, according to their power source, such as thermoelectric generators, biomechanical energy, solar power, biofuel and RF energy harvesters [ 18 ].…”

Section: Extending the Available Powermentioning

confidence: 99%

Extending the Limits of Wireless Power Transfer to Miniaturized Implantable Electronic Devices

2017

Self Cite

View full text Add to dashboard Cite

Implantable electronic devices have been evolving at an astonishing pace, due to the development of fabrication techniques and consequent miniaturization, and a higher efficiency of sensors, actuators, processors and packaging. Implantable devices, with sensing, communication, actuation, and wireless power are of high demand, as they pave the way for new applications and therapies. Long-term and reliable powering of such devices has been a challenge since they were first introduced. This paper presents a review of representative state of the art implantable electronic devices, with wireless power capabilities, ranging from inductive coupling to ultrasounds. The different power transmission mechanisms are compared, to show that, without new methodologies, the power that can be safely transmitted to an implant is reaching its limit. Consequently, a new approach, capable of multiplying the available power inside a brain phantom for the same specific absorption rate (SAR) value, is proposed. In this paper, a setup was implemented to quadruple the power available in the implant, without breaking the SAR limits. A brain phantom was used for concept verification, with both simulation and measurement data.

show abstract

Recent Advances on Implantable Wireless Sensor Networks

Cited by 8 publications

References 90 publications

SEE‐MAC: Spectrum and energy efficient‐medium access control protocol for Internet of Things

SEE‐MAC: Spectrum and energy efficient‐medium access control protocol for Internet of Things

Wireless implantable and biodegradable sensors for postsurgery monitoring: current status and future perspectives

Extending the Limits of Wireless Power Transfer to Miniaturized Implantable Electronic Devices

Contact Info

Product

Resources

About