12 results about "Vein" patented technology

The invention discloses an intelligent monitoring system applied to clinical infusion nursing. The intelligent monitoring system comprises an intelligent infusion monitoring device, a cloud server, amobile terminal provided with an intelligent monitoring application program, and a PC terminal provided with an intelligent monitoring application program. The intelligent infusion monitoring device comprises an automatic liquid stopping device, a liquid medicine detection sensor and a main controller. The liquid medicine detection sensor is installed on an infusion tube and used for collecting information about whether liquid medicine exists in the infusion tube or not and sending the information about whether the liquid medicine exists or not to the main controller. The automatic liquid stopping device is used for receiving a forward rotation control signal output by the main controller according to the information of no liquid medicine to clamp and close the infusion tube and prohibiting venous blood of the patient from flowing back to the infusion tube. According to the invention, remote alarm, automatic clamping and closing, medicine infusion and patient information display are integrated, the unnecessary manual infusion detection burden of patients and accompanying personnel is greatly reduced, and the liquid change efficiency of medical personnel is improved.

The invention discloses a venipuncture blood collection device. The device comprises a casing, a blood collection unit is installed in the casing and connected with a moving unit, sensors are installed in the blood collection unit and the moving unit respectively and connected with a control system, and a disinfection assembly is arranged on the outer surface of the casing. The device can automatically complete venipuncture blood collection, the labor intensity of a nurse is effectively reduced, the risks of accidentally hurting himself / herself and getting infectious diseases when the nurse collects blood are avoided, and the whole blood collection process can be monitored in real time. The venipuncture blood collection device is simple and compact in structure, safe, practical and easy topopularize.

The invention discloses a gas delivery system for hepatic perfusion. A control module of the gas delivery system controls an oxygen delivery control component and a compressed air delivery control component to work according to output results of a hepatic artery neural network training model and a portal vein neural network training model, real-time detection results of a hepatic artery detectionmodule and a portal vein detection module are trained based on the neural network training models, preset oxygen partial pressure, partial pressure of carbon dioxide and blood oxygen saturation degree, and hepatic artery and portal vein gas delivery capacity can be accurately adjusted in real time, so that the oxygen partial pressure, the partial pressure of carbon dioxide and the blood oxygen saturation degree are stably outputted according to preset values. Moreover, universal wheels are arranged at the bottom of a base, so that the gas delivery system can be used and mounted in different surgical places. In addition, when the storage capacity of gas in an oxygen storage bottle and a compressed air storage bottle reaches critical values, an alarm module can timely inform operators of related information.

The invention provides a disposable midline catheter kit for venous blood sampling or transfusion in a short term. The disposable midline catheter kit comprises a midline catheter, a guide steel wire,a puncture needle and a catheter fixer, a cannula seat and a catheter seat are detachably and fixedly connected through a locking thread, a catheter penetrates through the catheter seat and is detachably connected inside the catheter seat through a rivet, a guide sleeve is arranged at the end, away from the catheter seat, of the catheter, a first protective sleeve is arranged outside the catheterin a sleeving mode and fixedly connected with the catheter seat, a guide wire penetrates through a push tube and extends to the outside of the push tube, a second protective sleeve is arranged at theexposed position of the guide wire in a sleeving mode, a needle tube is fixedly arranged on a needle tube base, a third protective sleeve is fixedly connected with the needle tube base and arranged outside the needle tube in a sleeving mode, and two fixing wings are symmetrically and fixedly arranged on the two sides of a fixing clamp. According to the disposable midline catheter kit, puncture injuries are reduced, catheter blockage after blood return can be effectively prevented, the risk of accidental extraction of the catheter is reduced, the stability of the catheter is guaranteed, temporary material configuration during an operation is avoided, the infection risk is reduced, and catheter flushing and preparation before puncture are facilitated.

Method and systems are provided for reliable, convenient, self-administered, and cost-effective determination of central venous pressure. The noninvasive method and apparatus use changes in transmural pressure to create detectable changes in peripheral venous vascular volume for the determination of central venous pressure. Transmural pressure changes can be manifested by intravascular or extravascular pressure changes. The system is noninvasive and uses optical measurements of venous volume in the presence of transmural pressure changes. The relationship between the transmural pressure change and the change in vascular venous volume is combined with anatomical measurements to determine the central venous pressure of the subject. Central venous pressure can be used to determine hemodynamic status of the subject to include fluid overload in the heart failure patient.