Thermal effects of bioimplants

Lazzi, Gianluca

doi:10.1109/memb.2005.1511503

Cited by 156 publications

(96 citation statements)

References 6 publications

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“…Several key challenges must be addressed to realize these scenarios: implantable biosensors should be minimally invasive, completely biocompatible, and with low thermal dissipation [7] Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting and Remote Powering for Implantable Biosensors

2011

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Abstract-This paper reviews some popular techniques to harvest energy for implantable biosensors. For each technique, the advantages and drawbacks are discussed. Emphasis is placed on the inductive links that are able to deliver power wirelessly through the biological tissues and enable bidirectional data communication with the implanted sensors. Finally, high-frequency inductive links are described, focusing also on the power absorbed by the tissues.Index Terms-Energy harvesting, implantable biosensors, inductive powering, remote powering.

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Section: Introductionmentioning

confidence: 99%

Energy Harvesting and Remote Powering for Implantable Biosensors

2011

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“…The field of radiation also has a strong impact on the human body [57] that may damage the human tissues due to its continuous exposure. The goal of all temperature-aware protocols is to decrease the temperature rise of in-body sensor nodes by avoiding routing through hotspots.…”

Section: Temperature-aware Routing Protocolsmentioning

confidence: 99%

A guide for the selection of routing protocols in WBAN for healthcare applications

Bhanumathi

Sangeetha

2017

Hum. Cent. Comput. Inf. Sci.

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In the present scenario, the term wireless body area network (WBAN) is becoming an integral part of human day to day life due its wide variety of applications, especially in the field of healthcare systems. To design such a reliable body area network system, there are a number of factors to be considered both in hardware and software levels. One of such factors still developing is the design and the analysis of routing protocols in the network layer. Routing protocols are a set of protocols which can identify and maintain the routes in the network so that the data can be exchanged between the nodes efficiently. Hence, routing protocol plays a vital role in the wireless sensor networks for reliable communication between the sensor nodes. In this paper, different routing protocols for body area networks are surveyed and observed that they are affected by factors like energy, network topology, various quality of services (QoS) in the nodes, node temperature, transmission range of nodes, human posture, etc. An evocative taxonomy of protocols is presented such as cluster-based, cross-layered, postural movement based, QoS aware and temperature-aware routing protocols. From the survey, it is found that the selection of a routing protocol is application dependent. For example, the energy efficient protocols like reinforcement learning based routing with QoS support or wireless autonomous spanning tree protocol can be used for daily health monitoring systems due to its high packet delivery ratio. If the system is for in vivo networks, routing algorithm for network of homogeneous and Id-less biomedical sensor nodes or mobility-supporting adaptive threshold-based Thermal-aware energy-efficient multi-hop protocols are the suitable ones. For critical and emergency cases, where accuracy with little delay is the major concern, the protocols like critical data routing, reliability aware routing, data-centric multi objective QoS-aware routing protocol, etc. can be rightly chosen. This entire survey paper can be used by the researchers as a reference for studying various WBAN routing protocols, especially in the field of medical health care systems.

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“…2. Temperature change is examined in the base of 12 mW power dissipation implant with 60 electrodes [21], [22]. The body temperature is initially assumed as 36°C.…”

Section: Determination Of the Temperature Rise In The Cause Of Ementioning

confidence: 99%

The Effect of the Electrical Stimulation on Temperature Rise in the Retinal Tissue for Visual Prostheses

Celik¹,

Karagöz²

2014

IJCEE

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Abstract-Visual perception which is one of the most valuable perceptions for human beings may be lost over time because of various diseases such as Age Related Macular Degeneration (AMD) and Retinitis Pigmentosa (RP). These degenerative diseases cause severe damage to the certain parts of visual pathway and irreversible blindness. For the past last decades, with the improvements in the areas such as microelectronics, neuroscience and bioengineering, researches conducting on design and implementation of visual prosthetics become a promising therapeutic approach for the visual restoration. Visual perception, called phosphene, is reported to be obtained in studies which are based on electrical stimulation of the intact parts of the visual pathway. There are major factors that have to be considered in the design stage of a visual prosthesis system. One of them is the temperature change of the targeted retinal tissue and its surrounding due to electrical stimulation. In this study, a model is created to investigate thermal influence of an implant placed internal surface of the retinal tissue and solution is made using finite element analysis. It is shown that the temperature rise has highest value near the stimulation electrode and its surroundings in the case of using the model with thermal insulation. When the heat transfer mechanism is added to the simulation model, it is seen that the temperature rise is less and looks more realistic. With additive effect of heat transfer to the surrounding tissue and distance from stimulation electrode, temperature decreases away from the stimulation electrode.Index Terms-Electrical stimulation, finite element analysis, temperature change, visual prosthesis.

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Thermal effects of bioimplants

Cited by 156 publications

References 6 publications

Energy Harvesting and Remote Powering for Implantable Biosensors

Energy Harvesting and Remote Powering for Implantable Biosensors

A guide for the selection of routing protocols in WBAN for healthcare applications

The Effect of the Electrical Stimulation on Temperature Rise in the Retinal Tissue for Visual Prostheses

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