An observational study comparing the prototype device with the existing device for the effective visualization of invisible veins in elderly patients in Japan:

SAGE Open Medicine

KeikoKimori¹ 

关键词: Venipuncture;    intravenous access;    invisible vein;    noninvasive visualization;    image processing;    near-infrared light;   

DOI  :  10.1177/2050312115615365

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Objective:To compare the performance on the detection of the invisible veins between our modified prototype device and an existing device in elderly hospitalized patients.Methods:A prospective, cross-sectional, and observational study was performed in the invisible veins in elderly patients. The major variables, skin color near the invisible veins, and diameter and depth of the invisible veins were measured. The vein visualization rate was calculated as the ratio of the visualized veins to the invisible veins by the visualization device.Results:We analyzed 53 invisible veins in the cubital fossa and 56 invisible veins in the forearm in a total of 72 patients (median age, 73 years). The visualization rate for our prototype device was higher than that for an existing device in the cubital fossa and the forearm sites. The visualized veins of the prototype device had a higher intensity ratio than that of an existing device. No significant differences were observed in the body mass index, vein depth, and vein ...

【 授权许可】

CC BY