14 results about "Blood temperature" patented technology

The utility model discloses a blood extracorporeal circulation device, which belongs to the technical field of blood extracorporeal circulation equipment and comprises an inner tube and an outer tube, the inner tube and the outer tube are integrally nested, one end of the outer tube is connected with an air inlet tube, the air inlet tube is communicated with oxygen inlet equipment, and the other end of the outer tube is connected with an air outlet tube. A temperature changer and a flow speed controller are connected between one end, far away from the air outlet end, of the outer pipe and the oxygen inlet equipment; one end of the inner tube is a liquid inlet end for transporting blood, the other end of a blood inlet of the inner tube is a liquid outlet end, and the liquid outlet end is connected with a temperature sensor, an oxygen saturation sensor, a blood pump and a microembolus filter; the part, in the outer pipe, of the inner pipe is made of a gas exchange membrane material, and the liquid inlet end of the inner pipe is opposite to the gas inlet pipe of the outer pipe. The blood temperature rising process is safer, meanwhile, in the blood temperature rising process, the oxygen saturation index in the blood can be directly adjusted, the blood oxygen value is simple, convenient and controllable on the basis of convenient temperature rising, temperature control and oxygen saturation of in-vitro blood circulation are carried out at the same time, and operation is easy and safe.

The invention relates to a method and equipment for calculating the blood temperature of a patient in hemodialysis treatment, and the method comprises the following steps: obtaining geometric parameters and physical parameters of an extracorporeal circulation pipeline of hemodialysis, so as to establish a transient heat transfer model for representing the spatial-temporal dynamic change of the blood temperature in the extracorporeal circulation pipeline; acquiring operation parameters corresponding to the hemodialysis process, and constraining the transient heat transfer model by using the operation parameters to generate a constrained heat transfer model used for reflecting a heat exchange boundary condition in a real-time dialysis scene; carrying out numerical solution on the constrained heat transfer model so as to generate temperature field distribution data for representing the temperature of each part in the extracorporeal circulation pipeline under the preset dialysis duration; and extracting a temperature value corresponding to the position of the blood outlet of the extracorporeal circulation pipeline as the temperature of the blood outlet. The device has the advantage of better maintaining heat balance and safety of a patient in the treatment process.

This invention relates to the fields of computer and BeiDou positioning technology, and discloses a method and system for high-precision BeiDou positioning and path planning in emergency blood logistics. The method includes: acquiring high-precision positioning outdoors using a BeiDou module; detecting signal attenuation and switching positioning modes before entering indoor environments; performing multi-source positioning indoors by fusing inertial measurement units, wheel speed encoders, and a pre-built 3D point cloud map; aligning indoor and outdoor trajectories in time and space to form a seamless trajectory throughout the entire process; performing hierarchical path planning based on this seamless trajectory, blood mission information, and building structure data; and monitoring vehicle status, environmental obstacles, and blood temperature control parameters in real time during transportation, triggering path replanning and emergency dispatch if any limits are exceeded. This invention achieves continuous high-precision positioning, safe and compliant path planning, and intelligent risk warning throughout the entire blood transportation process, improving the reliability and timeliness of emergency blood logistics.

The invention relates to a patient blood temperature prediction model switching method based on computing power difference and a related device. The method comprises the steps that fixed parameters and operation parameters of a hemodialysis extracorporeal circulation pipeline are obtained; based on current computing power or user preferences, the decision enables a precision mode or an efficiency mode. When the precision mode is started, a progress monitor is started to monitor the calculation duration of the complete model; if the calculation is completed within the preset duration, extracting an outlet prediction temperature from a temperature field generated by the complete model; and if the calculation is overtime, stopping the calculation and switching to the efficiency mode. When the efficiency mode is started, inputting the fixed parameters and the operation parameters into a pre-trained bridging model to calculate a group of model coefficients; and calculating to obtain the outlet predicted temperature by using the simple model and the model coefficient. The method has the advantage of balancing calculation precision and real-time responsiveness.

The utility model relates to the technical field of medical instruments, in particular to a blood rewarming device of autoblood recovery equipment. The blood rewarming device of the autoblood recovery equipment comprises an autoblood recovery machine body, a control panel, a control host, a supporting block, a first supporting rod, a hanging assembly, a hanging buckle, a flexible sleeve, an ultrasonic sensor, a temperature sensor, a connecting block and a heating wire. A control panel is installed on the front side of the autoblood recycling machine body, the autoblood recycling machine body is electrically connected with the control panel, and a first supporting rod is connected to the top of the autoblood recycling machine body. When heated blood is transfused through the blood transfusion apparatus, the blood flows through a built-in ultrasonic sensor, and meanwhile, a heating wire is started to heat the flexible sleeve, so that the blood can be kept in a proper temperature range in the whole blood transfusion process, and the loss of the blood temperature is effectively prevented.

The invention discloses improved ultrafiltration heat preservation equipment, and relates to the technical field of medical instruments. The improved ultrafiltration heat preservation equipment comprises an ultrafiltration pipeline, an ultrafilter and a temperature control device, the ultrafiltration pipeline comprises an infusion catheter and a liquid outlet catheter; the liquid inlet end of the ultrafilter is communicated with the infusion catheter, the liquid outlet end of the ultrafilter is communicated with the liquid outlet catheter, the infusion catheter is suitable for inputting blood into the ultrafilter, and the liquid outlet catheter is suitable for outputting the blood filtered by the ultrafilter; the temperature control device is communicated with the liquid outlet catheter and used for adjusting the blood temperature. The structure of the improved ultrafiltration heat preservation equipment is improved, the temperature control device is used for controlling the blood temperature, the blood temperature can be kept within the normal range, arrhythmia and endangering the life of a child patient due to the fact that the body temperature of the neonate is rapidly decreased after improved ultrafiltration are avoided, the safety of improved ultrafiltration is greatly improved, meanwhile, operation is simplified, and the cost is reduced. And medical personnel do not need to adopt other operations to increase the body temperature of the child patient.

An advanced system and methods for treatment of cancer and other diseases including complications from late-stage viral infections by inducing hyperthermia in a patient relying on withdrawing blood from the patient and returning the withdrawn blood to the patient to establish a continuous extracorporeal flow circuit. Blood is heated by passing through the extracorporeal circuit at a controlled rate until a target body core temperature in is achieved. An innovative concept inherent in the instant invention is the incorporation of an ECMO machine to provide oxygenation. Usually, the blood will be subjected to a continuously re-circulating dialysis to balance electrolytes. Additionally, the blood will be subjected to a continuously recirculating regeneration through a carbon sorbent column where toxins and contaminants are removed. The blood temperature is maintained at the target blood temperature for a treatment period, and the blood is cooled after the treatment period has been completed.

This invention discloses a blood temperature monitor for hemodialysis, relating to the field of blood temperature monitoring technology. The invention includes a hemodialysis machine body and a mounting base. A bracket is fixedly connected to one side of the hemodialysis machine body. A housing is disposed on the upper side of the mounting base. A temperature sensor connected to a heat-conducting element is disposed within the housing. A temperature monitoring system connected to the temperature sensor is disposed within the housing. A control panel connected to the temperature monitoring system is disposed on the outer side of the housing. This invention uses a heat-conducting element to sense temperature changes within the blood tubing in real time and transmits the temperature signal to the temperature monitoring system. After processing and analyzing the signal, the temperature monitoring system displays the current temperature value intuitively on the control panel. When the temperature exceeds a set range, it can also issue an alarm in a timely manner, effectively ensuring the safety of hemodialysis treatment.

The application relates to a blood temperature regulating device, method and cardiopulmonary bypass system. The device comprises a semiconductor refrigeration device in contact with a blood pipeline to be regulated in temperature. A current sensor is electrically connected with the semiconductor refrigeration device and used for collecting working current. A temperature sensor is arranged on the blood pipeline and used for collecting the actual temperature of the blood pipeline. A temperature control circuit is electrically connected with the semiconductor refrigeration device and used for providing working current for the semiconductor refrigeration device. A control module is used for determining a target voltage according to the actual temperature and a target temperature of the blood pipeline. The actual voltage of the semiconductor refrigeration device is determined according to the working current, and the temperature control circuit is controlled to adjust the amplitude and direction of the working current according to the actual voltage and the target voltage of the semiconductor refrigeration device. In summary, the device of the application regulates the temperature of the blood pipeline twice, ensures that the temperature of the blood pipeline is consistent with the target temperature, and improves the accuracy of temperature regulation of the blood pipeline.

This application relates to a blood pump. The blood pump includes a pump housing and an impeller; the pump housing has a proximal opening; the impeller is rotatably disposed within the pump housing. The pump housing includes an expansion tube housing the impeller, the expansion tube comprising a first shape memory material to give the expansion tube an initial shape and an expanded shape relative to its initial shape; the first shape memory material is capable of deforming under blood temperature conditions, causing the expansion tube to expand from its initial shape to its expanded shape. The blood pump of this application can reduce hemolysis and improve the safety performance of the blood pump.

The invention relates to the technical field of medical monitoring equipment, and provides an integrated hemodialysis pipeline temperature monitoring device which comprises a shell, a battery bin is detachably connected to the lower end face of the shell, a silica gel wrist guard is fixedly connected to the lower end of the battery bin, and hook-and-loop fasteners are fixed to the two sides of the shell; a data processing module, a temperature measuring module, a heating module, a storage module, a display module, a communication module, an alarm module and a power supply module are arranged on the shell; the data processing module is used for connecting the input module and the output module to realize whole-process data processing calculation and instruction control; the temperature measuring module is used for monitoring the temperature of the bleeding pipeline, the blood return pipeline and the skin reference point; the blood flow velocity and blood return temperature synchronous monitoring and dynamic temperature return can be achieved, and the monitoring sensitivity and the use safety of a patient are both considered.

The invention relates to an integrated intelligent hemodialysis monitoring system. The system comprises a monitoring module, a main control module, a display module and an alarm module. The main control module is electrically connected with the monitoring module, the display module and the alarm module. The monitoring module comprises a blood pressure monitoring unit and a multi-mode monitoring sub-module; the multi-modal monitoring sub-module comprises a first blood path tube, a second blood path tube and a plurality of monitoring units; the monitoring module is used for collecting blood temperature, clearance rate, blood volume and blood pressure data in the hemodialysis process; and a processing control unit and an algorithm analysis unit are integrated in the main control module, and compared with the prior art, the system has the advantages of high applicability, realization of compatible upgrading of equipment, accurate risk monitoring and early warning and the like.

This invention relates to a hemodialysis heating device, comprising a processor and a temperature detection module, including: a first temperature detection module for detecting the surface skin temperature of the temporal artery; a second temperature detection module for detecting the blood temperature upon entry into the body; and a third temperature detection module for detecting the temperature of a heating element. The processor can calculate the blood thermal conductivity based on the second and third temperature data, and adjust the temperature rise of the heating element based on the difference between the first temperature data and a threshold value and the calculated blood thermal conductivity. A hemodialysis heating method includes the following steps: detecting the surface skin temperature of the temporal artery; detecting the blood temperature upon entry into the body; detecting the temperature of the heating element; and adjusting the temperature rise of the heating element based on the difference between the temperature data and a threshold value and the calculated blood thermal conductivity.

The invention discloses a continuous blood purification extracorporeal circulation pipeline heating device, and relates to the technical field of medical instruments. The blood temperature is monitored in real time through the two-way temperature sensing unit, the heating power is dynamically adjusted in combination with a PI D closed-loop control algorithm, it is ensured that the blood temperature is stably maintained in a safe physiological range, the low-body-temperature or overheating risk is effectively avoided, the core body temperature of a patient is kept stable, the original physiological state of the patient is maintained, and the low-body-temperature occurrence rate is reduced; the treatment safety is improved; the heating unit is of a spiral winding type resistance wire structure and is matched with a medical-grade flexible heat conduction material to tightly wrap a pipeline, gradient heating logic from the far end to the near end of a patient is achieved, the heat exchange efficiency is improved, and heat loss is reduced. Once the safety protection unit detects the temperature over-limit, current overload or electric leakage risk, a heating power supply is cut off immediately and an alarm is triggered; the power supply unit provides stable three-phase alternating current conversion, the intelligent control unit optimizes power output based on real-time data, and invalid energy consumption is reduced.