Development of an Upper Extremity Aids for Cardiac Catheterization

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  • 心臓カテーテル検査のための上肢固定用補助具の開発
  • シンゾウ カテーテル ケンサ ノ タメ ノ ジョウシ コテイヨウ ホジョグ ノ カイハツ

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Abstract

<p>We developed a prototype of an upper extremity aids for cardiac catheterization, in consideration of the patient’s physical characteristics and safety, as well as the ease of use by the operator. We proposed a hand rest that holds the wrist with urethane foam. The dimensions for the rest device were designed using human body dimensions data and hand dimensions measurements in the inspection posture. As a result, we obtained the following design values. （1） The width of hand rest recess is 40 mm, （2） the height of hand rest recess is 20 mm, （3） the height of wrist holding part is 35 mm, and （4） the angle of front slope is 45 degrees. We verified the prototype and found that the forearm and palm formed a nearly straight line in the distal radial artery approach, and the wrist was lifted to form a dorsiflexion in the radial artery approach. It was confirmed to be sufficient for the function of the assistive device. Based on the results, we proposed a product that supports two types of catheter work with one auxiliary tool.</p>

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