Automatic activation device for right heart contrast echocardiography agent

Abstract

The invention discloses an automatic activation device for a right heart contrast echocardiography agent. The automatic activation device comprises a first sleeve, a first piston rod, a first electricpush rod, a first connecting tube, a first valve port connecting tube and an inductive switch. Normal saline is quantitatively extracted through the first sleeve, the first piston rod, the first electric push rod and the first connecting tube, so that the proportioning accuracy is ensured. The blood of a patient is quantitatively drawn through the first electric push rod, a second sleeve, a second piston rod, the first valve port connecting tube and the induction switch, and a blood drawing passage is automatically closed after a set value is reached, so that the subsequent steps are conveniently carried out. A one-way valve is used for preventing liquid distribution when normal saline and blood mixed liquid in the second sleeve is injected. The liquid and air are mixed through a third electric push rod, a first-stage piston, a first-stage piston groove, a first-stage spring, a second-stage piston, a second-stage piston groove, a second-stage spring and a third-stage piston, then repeated pushing and pulling are performed, and the liquid and the air are fully mixed through the grooves.

Description

technical field [0001] The invention relates to the technical field of medical assistance, in particular to an automatic activation device for right heart acoustic contrast agent. Background technique [0002] At present, when performing right heart acoustic contrast, the manual operation of the syringe and the three-way valve is used to produce the air microbubble contrast agent. During this process, the medical staff must prepare the normal saline and air, and then the mixed liquid and air will be treated after the blood is pumped out. The two syringes are pushed repeatedly for manual mixing operation, the process is cumbersome and increases the working pressure of the medical staff and cannot guarantee the quality of the air microbubble contrast agent. Contents of the invention [0003] In view of the problems existing in the prior art, the present invention discloses a device for automatically activating right heart acoustic contrast agents. Sleeve, first piston rod, ...

AI Technical Summary

Problems solved by technology

[0002] At present, when performing right heart acoustic contrast, the manual operation of the syringe and the three-way valve is used to produce the air microbubble contrast agent. During this process, the medical staff must prepare the normal saline and air, and then the mixed liquid and air will be treated after the blood is pumped out. The two syringes are pushed repeatedly for manual mixing operation, which is cumbersome and increases the working pressure of medical staff and cannot guarantee the quality of air microbubble contrast agent

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