J. Technology and Education, Vol.28, No.1, pp.43-48 (2021)

研究論文

床ずれ発症抑制を目的としたムチンの摩擦特性に関する基礎検討

 

田中 孝国¹*，矢島 夏海¹，酒井 洋¹，高屋 朋彰¹，大岡 久子²，

桑原 敬司³，那須 裕規⁴

¹小山工業高等専門学校　物質工学科 (〒323-0806 小山市中久喜771)

*tanakatakakuni@oyama-ct.ac.jp

²群馬工業高等専門学校　物質工学科 (〒371-8530 群馬県前橋市鳥羽町 580)

³長岡技術科学大学 生物機能工学専攻 (〒940-2188 新潟県長岡市上富岡町1603-1)

⁴小山工業高等専門学校　機械工学科 (〒323-0806 小山市中久喜771)

 

Basic examination of bedsore suppression using mucin

 

Takakuni TANAKA，Natsumi YAJIMA，Hiroshi SAKAI，Tomoaki KOUYA

Hisako OOKA，Takashi KUWAHARA and Yuki NASU

National Institute of Technology, Oyama College

(771 Nakakuki, Oyama City, Tochigi Prefecture 323-0806, JAPAN)

National Institute of Technology, Gunma College

(580 Toriba, Maebashi, Gunma, 371-8530 Japan)

Nagaoka University of Technology, Department of Bioengineering

(1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, JAPAN)

 

(Received May 12, 2021; Accepted June 14, 2021)

 

A pressure ulcer (bedsore) is damage to the skin and underlying tissue, primarily caused by prolonged pressure or friction on the skin. In particular, it has been pointed out that elderly people who tend to have decreased skin elasticity are prone to have pressure ulcers. This is an urgent issue in Japan’s aging society; to prevent pressure ulcers, it is considered important to reduce the friction between the skin and sleepwear, maintain environmental moisture, and prevent bacterial infection in the wound. In this study, we focused on mucin, which is known as a glycoprotein, when investigating the effect of friction between clothes and skin. The skin and sleepwear environment was represented by artificial leather and cloth, and a friction test was performed using a surface property tester. The load (vertical force) applied to the shaft of the surface texture–measuring machine was set to 200 [g], the reciprocating speed was 3000 [mm/min], and the jig moving distance was 20 [mm]. One mL of water or solutions of pig stomach mucin with different concentrations was dropped on the cloth pieces, and the same measurement was performed. So far, we have improved the jig of the surface tester, measured and analyzed the static/dynamic friction coefficient to reproduce the pressure ulcer environment, and confirmed mucin's ability to reduce friction.

Key words: Mucin / friction / Pressure ulcer / artificial leather