FORCE DISTRIBUTION ACROSS WRIST JOINT - APPLICATION OF PRESSURE-SENSITIVE CONDUCTIVE RUBBER

被引：100

作者：

HARA, T ^{[1
]}

HORII, E ^{[1
]}

AN, KN ^{[1
]}

COONEY, WP ^{[1
]}

LINSCHEID, RL ^{[1
]}

CHAO, EYS ^{[1
]}

机构：

[1] MAYO CLIN & MAYO FDN,BIOMECH LAB,ROCHESTER,MN 55905

来源：

JOURNAL OF HAND SURGERY-AMERICAN VOLUME | 1992年 / 17A卷 / 02期

关键词：

D O I：

10.1016/0363-5023(92)90417-N

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

A new pressure-sensitive conductive rubber sensor was used for investigation of the pressure distribution through the radio-ulno-carpal joint. Twelve of these transducers were placed in the radio-ulno-carpal joint. Pressure was measured in seven different wrist positions under loads incrementally increasing from 0 to 12 kg. Half of the sensors showed less than 0.5 MPa, even at maximum load, while a high-pressure area was located palmarly in each fossa. The peak pressure measured in the wrist neutral position was 2.4 MPa on the scaphoid fossa, 1.5 MPa on the lunate fossa, and 1.1 MPa on the triangular fibrocartilage with a 10 kg load. The peak pressure ratio between the scaphoid and the lunate was 1.7 in the neutral wrist position. This increased in radial deviation to 2.9 and decreased in ulnar deviation to 0.8. The force-transmission ratio was 50% through the scaphoid fossa, 35% through the lunate fossa, and 15% through the triangular fibrocartilage in the neutral position. The advantage of this sensor is that it is thin and flexible and provides reliable reproducible quasi-instantaneous measurements.

引用

页码：339 / 347

页数：9

共 20 条

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