「コロンブスの卵」的発想にもとづいた体位変換用マットの試作

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  • ダイ30カイ トクシマ イガッカイショウ ジュショウ ロンブン 「 コロンブス ノ タマゴ 」 テキ ハッソウ ニ モトズイタ タイイ ヘンカンヨウ マット ノ シサク
  • Experimental manufacture of a mat for changing the position based on the idea of a　“Columbus’ egg”
  • コロンブス ノ タマゴ テキ ハッソウ ニ モトズイタ タイイ ヘンカンヨウ マット ノ シサク

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We report on a new mat experimentally developed by us for changing the position of the body (named i-mat), based on an idea of a floating body. [Method] At first,4, approximately 70cm long, belts were attached to both the right and left side of the pad for tying to the beds. For a lateral position with a 30-degree tilt to the right side, the belt attached on the left side is fixed to the right bed fence and the length of the belt is adjusted so that the patient’s position becomes lateral with a 30-degree tilt. The body pressure levels (mmHg) at sites of bone were measured after position changes by using a simple body pressure-measuring device (PREDIA®) in 10 patients with an independence degree of daily living rating of C2 (group i) in whom the i-mat was used, and compared with the levels measured after position changes in patients where a mat made of urethane (Nasentpat®) was used (group N). [Results] The pressure levels in the sacral region and occipital region could be significantly lowered in group i as compared with that in group N. We also measured and compared the pressures at the major trochanter, acrominon, and iliac regions, because the high-pressure loaded region shifted to these regions on the side facing the bed in the lateral position. No significant differences in the pressure levels at the major trochanter and acrominon were found between the i and N groups. The pressure level in the iliac region in the i group was significantly higher than that that in the N group. [Conclusion] Use of this experimentally produced i-mat can significantly lower the pressure load at the sacral and occipital regions when the patient is placed in the lateral position of either side with a 30-degree tilt, as compared to that of Nasentpat®. But it appears that caution should be exercised to prevent the occurrence of bedsores in the iliac region.

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