Abstract: A catheter attachment for introducing a flexible catheter into a blood vessel includes front and rear attachment sections and a hinge for pivotally connecting these sections. A flexible catheter is mounted in the attachment sections and the rear attachment section includes a connection for placing the catheter in communication with a transfusion device. As a result the rear attachment section and the portion of the catheter therein may move with respect to the front attachment section, which is taped or otherwise secured to the patient, without disturbing the portion of the catheter tube extending from the front attachment section into the patient.
Abstract: A device for facilitating rapid and accurate determination or measurement of sedimentation rates of fluid suspensions, e.g. erythrocytes in blood plasma, includes a sedimentation tube having open upper and lower ends, a scale with a zero point adjacent the upper end of the tube, and means for selectively opening and closing the tube adjacent said upper end, said means having a surface portion extending across the tube when the tube is closed, which surface portion is located precisely at the zero point in the scale.