Double-atrium pressure measuring and medicine injection catheter

Abstract

The invention relates to a medical device, in particular to a double-atrium pressure measuring and medicine injection catheter. The catheter solves the problems that a left atrium venous catheter and a right atrium venous catheter cannot be placed simultaneously in one puncture at present, can simultaneously monitor the left atrium and the right atrium, and synchronously and independently feeds medicines. The double-atrium pressure measuring and medicine injection catheter comprises a connecting seat, extension pipes respectively fixed at two ends of the connecting seat and a graduated pipe. The tail end of each extension pipe is connected with an extension pipe joint, liquid stopping clamps are clamped on pipe bodies of the extension pipes, the graduated pipe is a multi-cavity pipe, and the cavities are respectively independently communicated with the extension pipes. The graduated pipe is divided into a right atrium section, a connecting section and a left atrium section. Tail end pipe walls of the left atrium section and the right atrium section of the graduated pipe are provided with side holes, and the tail end of the left atrium section of the graduated pipe is a sharp end. Simultaneous monitoring of pressure of both the left atrium and the right atrium and simultaneous medicine feeding are achieved.

Description

technical field [0001] The invention relates to a medical device, in particular to a central venous catheter, and more specifically to a biatrial pressure measuring and drug injection catheter capable of simultaneously controlling the right atrium and the left atrium. [0002] Background technique [0003] In clinical cardiac surgery for critically ill patients, monitoring of central venous pressure (CVP) is routinely performed. CVP mainly reflects the preload of the right ventricle, and its level is related to blood volume, venous tension and right heart function. However, the human heart is a relatively independent cavity due to the separation of the atrial septum, interventricular septum, left heart mitral valve, and right heart tricuspid valve. body. Since the tricuspid valve and the pulmonary valve obstruct the central venous blood flow, and at the same time, due to the change of pulmonary circulation resistance, the pressure of the left heart is attenuated, so the CV...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problem that the left atrium and the right atrium venous catheter cannot be placed simultaneously in one puncture so as to simultaneously monitor the left and right atrium and simultaneously and independently administer the drug, and provides a dual atrium pressure measurement and drug injection The catheter includes a connecting seat, an extension tube fixed at both ends of the connecting seat, and a tube body with a scale. It is a multi-cavity tube, and the cavities are independently communicated with the extension tube. The tube with scale is divided into a right atrium segment, a connecting segment and a left atrium segment. The right atrium segment of the tube with scale and the left atrium segment There is a side hole on the wall of the end tube, and the end of the left atrium segment of the tube with scale is the tip

Images