Thermal dilution injection measurement and control

• Main Authors: SIEMONS ALEXANDER H, LIU WEI-JIUN
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The invention relates to hot dilution injection measurement and control. Devices and methods for measuring, controlling (or both) hot dilution injection flow for calculating a pulmonary hot dilution parameter. An injection delivery system includes an injector for containing an injection and a delivery tube configured at one end to connect to a catheter. A flow measurement device is inserted into the delivery tube to generate a signal for determining the flow rate of fluid from the syringe to the catheter. A processor receives a signal from the flow measurement device and calculates an injection volume to be used as an input for calculating a transpulmonary thermal dilution parameter, such as cardiac output. A GUI is provided to guide the user as to whether the injection speed is too fast or too slow. The system may include a constant flow valve to provide a constant flow rate from the syringe, rather than measuring or calculating the flow rate. 本申请涉及热稀释注射液测量和控制。用于测量、控制(或两者)用于计算经肺热稀释参数的热稀释注射液流量的设备和方法。注射液递送系统包括