TY - GEN
T1 - Buttock dummy with force sensors for assessment of deep tissue injury risk
AU - Kanaya, Kohei
AU - Ogata, Kunihiro
AU - Nakayama, Tsuyoshi
AU - Ono, Eiichi
AU - Umezu, Mitsuo
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/2/6
Y1 - 2017/2/6
N2 - Prevention of pressure ulcers, which result from persistent mechanical loading of soft tissues, is a common issue among wheelchair users. In the case of deep tissue injury (DTI), it is difficult to predict where tissue breakdown will occur, as it initiates from tissues under the skin. In this paper, a new methodology to assess the risk of DTI using a compliant buttock dummy is proposed. The dummy is composed of pelvis model with six-axis force sensors and silicone rubber covering it to imitate the anatomical form of a human buttock. Six-axis force sensors attached to the pelvis model enable the measurement of external forces and moments during the sitting posture and estimate points of action on bony prominences such as ischial tuberosities by an algorithm. Experiments have been performed to test the accuracy of position estimation by placing point load on the bony prominences model. Next, the relationship between external forces and internal pressure has been confirmed by adhering pressure sensors on the surface of rigid models covered by soft materials. The results suggested the potential of the proposed dummy for the assessment tool of DTI risk.
AB - Prevention of pressure ulcers, which result from persistent mechanical loading of soft tissues, is a common issue among wheelchair users. In the case of deep tissue injury (DTI), it is difficult to predict where tissue breakdown will occur, as it initiates from tissues under the skin. In this paper, a new methodology to assess the risk of DTI using a compliant buttock dummy is proposed. The dummy is composed of pelvis model with six-axis force sensors and silicone rubber covering it to imitate the anatomical form of a human buttock. Six-axis force sensors attached to the pelvis model enable the measurement of external forces and moments during the sitting posture and estimate points of action on bony prominences such as ischial tuberosities by an algorithm. Experiments have been performed to test the accuracy of position estimation by placing point load on the bony prominences model. Next, the relationship between external forces and internal pressure has been confirmed by adhering pressure sensors on the surface of rigid models covered by soft materials. The results suggested the potential of the proposed dummy for the assessment tool of DTI risk.
UR - http://www.scopus.com/inward/record.url?scp=85015428645&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015428645&partnerID=8YFLogxK
U2 - 10.1109/SII.2016.7844047
DO - 10.1109/SII.2016.7844047
M3 - Conference contribution
AN - SCOPUS:85015428645
T3 - SII 2016 - 2016 IEEE/SICE International Symposium on System Integration
SP - 496
EP - 501
BT - SII 2016 - 2016 IEEE/SICE International Symposium on System Integration
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE/SICE International Symposium on System Integration, SII 2016
Y2 - 13 December 2016 through 15 December 2016
ER -