Patent ID: 8858499
Filing Date: 2014-10-14
Classification: A61M,G05D

Abstract:
1. A liquid injector for injecting at least a contrast medium into a subject whose fluoroscopic image is to be captured by an imaging diagnostic apparatus, comprising: a liquid injection mechanism for injecting contrast medium into a subject; and a computer unit configured to: read out data of a base operation-condition, including (i) data of injection rate for contrast medium and (ii) data of a predetermined injection time for an injection; calculate a total volume of the contrast medium to be injected, based on data of a necessary dose of effective component per unit weight, a subject's weight, and a concentration of the effective component; make an injection pattern based on the base operation-condition and the calculated total volume of the contrast medium, by changing the injection rate of the base-operation condition depending on the total volume, with said predetermine injection time unchanged for all volumes of the contrast medium; and; control the injection mechanism to perform an injection in accordance with said injection pattern without changing any injection parameter during the injection.