Evaluation of healing of pressure ulcers through thermography: a preliminary study

Chaves, Maria Emília Abreu; Silva, Fernanda Souza da; Pinheiro, Viviane Borda; Soares, C P M; Ferreira, Magalhães; Sampaio, Flávia; Gomes, Latini; Andrade, Rafhael M.; Pinotti, Marcos

doi:10.1590/2446-4740.0571

Cited by 23 publications

(20 citation statements)

References 30 publications

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“…Some literature has proposed that localised (point measurements) temperature measurement could be used to detect diabetic foot ulcer formation [ 6 , 7 , 8 ]. Localised temperature measurement can also be used for wound care [ 9 , 10 , 11 , 12 ] as regional temperature changes at a wound site may indicate infection. Temperature is critical for normal cellular activity, and, therefore, the best condition for healing of wounds has been identified as 33 °C [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

A Wearable Textile Thermograph

Lugoda

Hughes‐Riley

Morris

et al. 2018

Sensors

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In medicine, temperature changes can indicate important underlying pathologies such as wound infection. While thermographs for the detection of wound infection exist, a textile substrate offers a preferable solution to the designs that exist in the literature, as a textile is very comfortable to wear. This work presents a fully textile, wearable, thermograph created using temperature-sensing yarns. As described in earlier work, temperature-sensing yarns are constructed by encapsulating an off-the-shelf thermistor into a polymer resin micro-pod and then embedding this within the fibres of a yarn. This process creates a temperature-sensing yarn that is conformal, drapeable, mechanically resilient, and washable. This work first explored a refined yarn design and characterised its accuracy to take absolute temperature measurements. The influence of contact errors with the refined yarns was explored seeing a 0.24 ± 0.03 measurement error when the yarn was held just 0.5 mm away from the surface being measured. Subsequently, yarns were used to create a thermograph. This work characterises the operation of the thermograph under a variety of simulated conditions to better understand the functionality of this type of textile temperature sensor. Ambient temperature, insulating material, humidity, moisture, bending, compression and stretch were all explored. This work is an expansion of an article published in The 4th International Conference on Sensor and Applications.

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Section: Introductionmentioning

confidence: 99%

A Wearable Textile Thermograph

Lugoda

Hughes‐Riley

Morris

et al. 2018

Sensors

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“…Behavioural/facial markers of pain refer to a variety of responses that typically accompany the experience of pain. They serve the purpose to communicate the inner state "pain" to others and thus play a crucial role in social interactions [18]. Methods designed to capture and measure this dynamic phenomenon have greatly improved our understanding of discrete muscle action associated with the various facial displays [19].…”

Section: Facial Expressions: Interpretation Of Facial Pain Signalsmentioning

confidence: 99%

Nursing and Technology Foresight in Futures of a Complex World

Dawoudi¹

2017

RMES

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Medical technology is one of the foundations health care systems in the world. Patient care technology has become increasingly complex and medical technology has improved health care efficiency, quality safety and cost. However, it is shown in patient care centers that current technology alone is not enough. Up to now several tools were originally created for morbid monitoring e.g. pain scale and bedsores protection to help patients communicate about their pain. However, in spite of the importance and prevalence of pain, there are currently no clinically accepted tools to objectively monitor changes in pain level, requiring physicians to rely on patients' subjective assessment, or to simply guess, when patients cannot describe their pain [1]. This article aimed to provide the theoretic framework for improving patient safety system, and enhances the ability of health care professionals to coordinate care by providing a patient's health information. This framework is based on Morbid-Monitoring Systems include "Pain and Unconsciousness Scales-measurements" and "Thermal Wound Injury Prevention System (TWIP)". The multi-methods approaches to monitor these processes are Morbid Motion Monitoring, Facial expressions and effective Thermal Radiation. This article identifies these novel technologies that change the practice of nursing, and explores issues on how these novel technologies are driving change in the nursing environment.

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“…In this study, yarn encapsulation technology was used to embed small thermistors discretely into yarns, and then textiles [ 8 , 9 ], to create sensing garments capable of spatially resolved temperature measurements. Textiles are an ideal medium for employing temperature-sensing on the body, as temperature changes in the skin can indicate underlying pathologies [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. This requires direct skin contact for the encapsulated sensor and therefore comfort is essential.…”

Section: Introductionmentioning

confidence: 99%

“…Another application of the technology would be to create a temperature-sensing wound dressing, as wound infection can also be identified by a localised change in temperature [ 13 , 15 , 16 ] however the current literature does not provide guidance of the actual temperature variations that relate to wound infection.…”

Section: Introductionmentioning

confidence: 99%

A Study of Thermistor Performance within a Textile Structure

Hughes‐Riley

Lugoda

Dias

et al. 2017

Sensors

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Textiles provide an ideal structure for embedding sensors for medical devices. Skin temperature measurement is one area in which a sensor textile could be particularly beneficial; pathological skin is normally very sensitive, making the comfort of anything placed on that skin paramount. Skin temperature is an important parameter to measure for a number of medical applications, including for the early detection of diabetic foot ulcer formation. To this end an electronic temperature-sensor yarn was developed by embedding a commercially available thermistor chip into the fibres of a yarn, which can be used to produce a textile or a garment. As part of this process a resin was used to encapsulate the thermistor. This protects the thermistor from mechanical and chemical stresses, and also allows the sensing yarn to be washed. Building off preliminary work, the behaviour and performance of an encapsulated thermistor has been characterised to determine the effect of encapsulation on the step response time and absolute temperature measurements. Over the temperature range of interest only a minimal effect was observed, with step response times varying between 0.01–0.35 s. A general solution is presented for the heat transfer coefficient compared to size of the micro-pod formed by the encapsulation of the thermistor. Finally, a prototype temperature-sensing sock was produced using a network of sensing yarns as a demonstrator of a system that could warn of impending ulcer formation in diabetic patients.

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Evaluation of healing of pressure ulcers through thermography: a preliminary study

Cited by 23 publications

References 30 publications

A Wearable Textile Thermograph

A Wearable Textile Thermograph

Nursing and Technology Foresight in Futures of a Complex World

A Study of Thermistor Performance within a Textile Structure

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