An artery thermal dilution catheter

Abstract

The invention relates to an arterial thermodilution catheter, which comprises a multi-lumen main body tube. A guide wire indwelling cavity is arranged on the inner upper side of the multi-lumen main body tube. There is a temperature sensor, a measuring hole is set on the lower side of the left part of the multi-cavity main tube, a fixing piece is connected to the right end of the multi-cavity main tube, a pressure sensor is set in the middle of the fixing piece, and a pressure signal cable is connected to the upper side of the pressure sensor. The upper end of the cable is connected with a pressure measuring joint, and the upper right end of the fixing piece is connected with a temperature measuring extension tube. The inside of the temperature measuring extension tube is provided with an enamelled insulated wire, and the right end of the temperature measuring extension tube is connected with a temperature measuring joint. The middle part and the lower part of the right end are connected with an infusion extension tube, the right side of the infusion extension tube is provided with a flow stop clip, and the right end of the middle cavity infusion tube is connected with an infusion joint. The advantages of reducing accidental infection and less error.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and specifically relates to an arterial thermodilution catheter for directly monitoring intracardiac pressure and pulmonary artery pressure, measuring cardiac output and requiring intravenous infusion. Background technique [0002] The integrated manometry arterial thermodilution floating catheter is a medical device for clinical hemodynamic monitoring, which provides a basis for clinical diagnosis. Before the 1970s, hemodynamic monitoring mainly relied on stethoscopes and some experience of clinicians to obtain relatively superficial clinical monitoring indicators, such as the patient's respiration, pulse, body temperature, etc. These indicators largely fail to meet the clinical understanding of disease severity. The application of technologies such as sphygmomanometer, echocardiography, pulmonary oxygen consumption measurement, and skin oxygen saturation monitoring have greatly impro...

AI Technical Summary

Problems solved by technology

The application of technologies such as sphygmomanometer, echocardiography, pulmonary oxygen consumption measurement, and skin oxygen saturation monitoring have greatly improved the clinical understanding of hemodynamics and provided a certain basis for clinical treatment. However, these technologies and methods monitor The hemodynamic indicators often have the disadvantages of large errors, incomplete monitoring, and inability to continuously monitor, especially for critically ill patients with cardiovascular diseases, such as acute myocardial infarction, heart failure, acute pulmonary embolism, respiratory failure, etc. In order to provide a more accurate basis for clinical diagnosis, it cannot meet the clinical requirements for the monitoring of these physiological indicators.

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