21 results about "Fluid replacement" patented technology

The invention provides a method, a system and a device for determining an active fluid infusion deceleration compensation torque, and relates to the technical field of vehicle control. When a vehicle is in non-braking sliding and has an active fluid infusion deceleration compensation demand, a target sliding torque is determined based on a vehicle running state; calculating an initial active liquid supplementing deceleration compensation torque by combining a target allowable energy recovery torque determined by the motor allowable recovery power; and the initial compensation torque is dynamically corrected by further combining the road adhesion rate and the tire slip rate, so that the target active fluid infusion deceleration compensation torque at the current moment is determined. The deceleration consistent with the normal recovery working condition is still kept when the vehicle is in the non-braking sliding working condition and the recovery capacity is limited, the problems that the deceleration is unstable and the driving experience is poor under the pure sliding working condition at present are solved, and the smooth, comfortable and safe sliding energy recovery control effect is achieved.

The application provides a method for determining the longitudinal wave velocity after fluid replacement in an anisotropic medium and related equipment. The method comprises the following steps: determining an average bulk modulus based on a matrix bulk modulus; determining a first bulk modulus when the medium contains fluid based on first property data; determining a second bulk modulus when the medium does not contain fluid based on the first property data, the matrix bulk modulus, the average bulk modulus and the first bulk modulus; determining a second vertical stiffness coefficient when the medium does not contain fluid based on the first property data, the average bulk modulus, the first bulk modulus and the second bulk modulus; obtaining second property data of each predetermined replacement fluid; and determining the longitudinal wave velocity after the fluid in the medium is replaced by the predetermined replacement fluid based on the first property data, the average bulk modulus, the second bulk modulus, the second vertical stiffness coefficient and the second property data. The technical problem that the longitudinal wave velocity determined after fluid replacement in an anisotropic medium is not accurate in the prior art is solved.

The application relates to a corneal drug delivery scleral lens, which comprises a lens body, the lens body comprises a treatment area, a reverse area and a landing area from the center to the outside, the treatment area is located in the center, the reverse area is arranged around the treatment area and is used for connecting the treatment area and the landing area, the landing area is arranged around the reverse area and is used for supporting a scleral surface, so that a liquid accumulation layer is formed between a corneal front surface and the lens body; a flow guide pipe is arranged in the lens body in the radial direction, forming a liquid injection end and a drug delivery hole. The scleral lens of the application can supplement liquid medicine through the flow guide pipe without taking off the lens, dynamic fluid replacement is realized, and the cornea is prevented from being damaged by repeated taking off and wearing. When the lens is designed, the height of the reverse area is taken as a core variable parameterization design, the thickness of the liquid accumulation area and the drug concentration are accurately controlled. The overflow hole is normally sealed, and the risk of infection is reduced. The liquid medicine is diffused from the edge to the center, the whole surface of the cornea is uniformly soaked, and the bioavailability is improved.

The application discloses a fluid supplement method and a fluid supplement device. The method comprises the following steps: receiving a fluid replacement instruction, wherein the fluid replacement instruction indicates that the target cooling circuit is to be filled with fluid; in response to the fluid replacement instruction, performing a leakage detection operation on the target cooling circuit to obtain a detection result; in the case that the detection result indicates that the target cooling circuit does not have a leakage fault, performing a fluid filling operation on the target cooling circuit; in the process of performing the fluid filling operation, the progress of the fluid filling operation is determined according to a flow curve, and the flow curve is used to quantitatively represent the change trend of the injection amount of the fluid over time; and in the case that the progress of the fluid filling operation reaches a preset progress, performing a gas discharge operation on the target cooling circuit. The application solves the technical problems that the related art relies on manual operation to fill the cooling fluid for the vehicle, which is time-consuming and cannot detect the leakage of the cooling system.

In the present invention, a control unit (90) of an extracorporeal circulation device (1) capable of ensuring an ideal blood flow rate for a patient when performing VA-ECMO comprises: a calculation unit (91) that calculates an ideal flow rate and pump head pressure from patient-specific information; and a transmission unit (92) that transmits, to a fluid replacement device (70) for performing fluid replacement, water amount data obtained through measurement by a measurement device (80) for measuring the water amount of the patient. The control unit (90) gives a fluid replacement instruction to the fluid replacement device (70) via the transmission unit (92) on the basis of the pressure of the inside of a blood circuit (20) measured by pressure measurement units (45, 46), the flow rate of the inside of the blood circuit (20) measured by a flow rate measurement unit (47), and the water amount data obtained through measurement by the measurement device (80).

This present disclosure relates to fluid therapy based on adjusted urine output rate and / or sodium output rate, and associated systems, devices, and methods. Exemplary methods can include receiving a sodium excretion input for the patient; receiving a urine output rate; determining an adjusted urine output rate based on the sodium excretion input and the urine output rate; and providing fluid therapy based on the adjusted urine output rate. By determining the amount and / or rate of the infused diuretic and / or hydration fluid based on a patient's actual sodium excretion levels, embodiments of the present technology can optimize and / or customize all or a subset of a diuretic therapy to an individual patient's physiology.

The invention discloses a medical fluid replacement multi-cavity catheter, and relates to the technical field of replacement catheters, and the medical fluid replacement multi-cavity catheter has the advantages that the liquid medicine foaming time is shortened, the liquid medicine foaming efficiency is improved, and one person can operate with one hand. A connecting pipe is integrally formed at the near end of the catheter body, a partition plate assembly dividing the connecting pipe into a plurality of chambers with different purposes is integrally formed in the connecting pipe, the partition plate assembly extends into an inner cavity of the catheter body and divides the inner cavity of the catheter body into a plurality of chambers, and a plurality of extension pipes are fixed to the connecting pipe. Each extension pipe is communicated with one cavity of the inner cavity of the connecting pipe, a preparation cylinder is fixed to the end, away from the connecting pipe, of one extension pipe, a liquid medicine injection pipe communicated with the preparation cylinder is arranged on the preparation cylinder, and a foaming assembly for primarily foaming liquid medicine is arranged at the joint of the liquid medicine injection pipe and the preparation cylinder.

The present application relates to a kind of liquid supplement monitoring system and method, system includes urine control module and doctor end with hospital management cloud communication connection, urine control module includes urine volume detection component, urinary tube opening and closing component and bladder pressure detection component;Urine control module is based on the bladder pressure detection component collected bladder pressure intelligent switch urinary tube opening and closing component;The urine volume detection component of urine control module detects the urine volume in urine bag in real time;Hospital management cloud can generate first threshold and second threshold in combination with the real-time urine volume of patient, and send the judgment benchmark related with first threshold and second threshold to urine control module;When the bladder pressure detected by bladder pressure detection component is in the range with first threshold and second threshold as critical point, urine control module controls the program of patient urination with patient through personal control terminal manually opening and closing the urinary tube opening and closing component of urine control module as the first priority.

The application provides a kind of pancreatitis patient fluid intake and output quantity comprehensive monitoring method, comprising the following steps: obtaining the fluid intake and output quantity data and blood gas analysis data of pancreatitis patient and other data;Set liquid demand quantity prediction model, according to the preprocessed multidimensional monitoring data set and liquid demand quantity prediction model, liquid demand quantity prediction is carried out;Set the time series risk early warning model based on LSTM, according to the preprocessed multidimensional monitoring data set and liquid demand quantity prediction model, risk prediction is carried out;According to the prediction result of risk prediction, generate liquid management early warning information and fluid replacement scheme adjustment suggestion;According to the prediction result of liquid demand quantity prediction, the risk probability of future occurrence of liquid overload, hypovolemia or abdominal cavity high pressure syndrome of patient is predicted.The application can realize the intelligent prediction of individualized liquid demand quantity and the early dynamic early warning of complication risk, generate liquid management suggestion, to assist clinical precise and predictive liquid treatment.

The application provides an oxygen treatment system and a control method thereof, wherein the oxygen treatment system comprises an oxygen treatment device for treating oxygen through an electrochemical reaction and a liquid supplementing device for supplementing liquid to the oxygen treatment device, and the control method comprises: detecting a liquid level drop rate of the liquid supplementing device; judging whether the liquid level drop rate of the liquid supplementing device is greater than a preset drop rate threshold; if yes, locating a leakage point of the oxygen treatment system; and performing an alarm measure corresponding to the leakage point. By using the method, the oxygen treatment system has the liquid leakage self-monitoring capability and the leakage point locating capability, so that the user can take targeted remedial measures. According to the scheme of the application, the oxygen regulation function of the oxygen treatment device can be reduced or avoided from being disabled due to liquid leakage, and the surrounding environment is protected from being eroded by electrolyte.

The utility model relates to the field of otorhinolaryngological nursing, and discloses a nasal irrigator for otorhinolaryngological nursing, which comprises a mounting column, one end of the mounting column is provided with an annular groove, the inside of the annular groove is in threaded connection with a replacement cylinder, the inside of the mounting column is provided with a mounting groove, the inside of the mounting groove is provided with a water pump, and the water pump is connected with the replacement cylinder. A positioning groove is formed in one end of the replacement cylinder, the positioning groove and the annular groove are rotationally inserted, a water pumping hole is formed in the bottom end of the interior of the positioning groove, a sealing piece is detachably arranged in the water pumping hole, a fixing cylinder is fixed to one end of the interior of the replacement cylinder, and a communicating hole is formed in one end of the fixing cylinder; an extraction pipe is fixed to one end of the fixing cylinder, and the central axis of the communication hole and the central axis of the extraction pipe are located on the same straight line. According to the utility model, one patient can correspond to one bottle or a plurality of bottles filled with cleaning liquid by medical staff, so that the replacement cylinder is prevented from being repeatedly used, and the risk of cross infection is reduced.

This application discloses a blood purification device and storage medium. The blood purification device includes a memory and a processor. When the processor executes a computer program, it performs the following: In the pre-charge test phase, it controls a heating plate to heat the replacement fluid in the fluid replenishment branch. When the detected first temperature of the replacement fluid is within a preset safe temperature range, it switches to the blood treatment phase. Then, it controls the heating plate to start heating at the initial heating temperature, receives the user-set heating target temperature, and obtains the first flow rate of the fluid replenishment branch based on the detected rotation speed of the first peristaltic pump. It determines a temperature lookup table based on the first flow rate, finds the corresponding first heating temperature of the heating plate in the temperature lookup table based on the heating target temperature, and adjusts the heating power of the heating plate using PI control feedback based on the detected actual heating temperature and the first heating temperature. In this way, this application can improve the stability and accuracy of intelligent control of the temperature of the replacement fluid in the fluid replenishment branch.

The utility model relates to a dipping tank applied to an automatic dipping coating device, which comprises a liquid medicine tank with an opening at the upper end, at least one vertically arranged vertical partition plate is arranged in the liquid medicine tank, the liquid medicine tank is divided into a dipping cavity and a backflow cavity by the vertical partition plate, and the top end of the vertical partition plate is lower than the edge of the upper opening of the liquid medicine tank. Liquid medicine in the dipping cavity flows into the backflow cavity in an overflowing mode, a liquid supplementing opening communicated with the dipping cavity and a backflow opening communicated with the backflow cavity are formed in the bottom of the liquid medicine pool, the liquid supplementing opening is communicated with the liquid medicine storage tank through a guide pipe and a liquid supply pump, and the backflow opening is communicated with the liquid medicine storage tank through a guide pipe. According to the utility model, the stability of the liquid level height of liquid medicine is ensured in a liquid medicine overflowing manner, so that the dipping depth of workpieces is kept constant in the dipping and coating process, and the consistency of the dipping and coating effects of all the workpieces is ensured.

Aspects of the invention include methods of managing pain in a subject by applying a transdermal delivery device containing a dexmedetomidine composition formulated to deliver a pain relieving effective amount of dexmedetomidine to a subject. In practicing methods according to certain embodiments, a transdermal delivery device having a dexmedetomidine composition is applied to a subject and is maintained in contact with the subject in a manner sufficient to deliver an amount of dexmedetomidine effective to manage pain in the subject. In some embodiments, methods include hydrating the subject, such as by administering a hydration fluid composition to the subject. Methods according to certain embodiments may also include co-administering an opioid to the subject. Also provided is a transdermal delivery device configured to deliver dexmedetomidine sufficient for practicing the subject methods, as well as kits containing the transdermal delivery device.

Fluid replacement structures used in immersion cooling tanks can include various enhancements to make them functional beyond simply taking up space. For example, the density of fluid replacement structures can be variable to assist with buoyancy control. As another example, fluid replacement structures can be designed to enable vaporized working fluid to be directed to a desired location. As another example, fluid replacement structures can include emergency cooling features, such as different substances that cause an endothermic reaction to occur when they are mixed together. The substances can be separated by a membrane that melts when the temperature reaches a certain point. As another example, a fluid replacement structure can provide structural support for an immersion cooling tank when negative pressure operations are performed. Fluid replacement structures can also include alignment features, lifting features, locking features, mating guides, fiducial markers, or the like.

A medical rehydration system includes a securing device for securing and compressing a bags including an internal chamber, the securing device including a base, a retention portion including a recessed channel, at least one side rail, and a compression plate rotatably attached to the at least one side rail. When a bag including an internal chamber is positioned at least partially within the recessed channel, the compression plate is rotatable between a first position wherein the compression plate contacts the bag and a second position wherein the compression plate does not contact the bag. When in the first position, a user may exert pressure on the compression plate, compressing the bag and internal chamber between the compression plate and the retention portion. In some embodiments, the medical rehydration system further includes an automated compression system for exerting pressure against the compression plate of the securing device.

To easily and reliably detect a connection destination of a fluid replacement passage.SOLUTION: A fluid replacement passage 27A relates to a dialysis device 1 which is selectively and connectably provided for an artery side passage 21 (pre-fluid replacement) or a venous side passage 22 (post fluid replacement) in a blood circuit 3. There are provided: a supply side pressure sensor S3 measuring pressure of a dialysis fluid supply passage 54; a collection side pressure sensor S4 measuring pressure of a dialysis fluid retrieval passage 55; and connection passages (24A, 24B, 25) one ends of which communicate with the artery side passage 21 or the venous side passage 22 of the blood circuit 3 and the other end of which are connected to the dialysis fluid retrieval passage 55. Moreover, it is determined in the state that a dialysate pump 63 (fluid sending means) has flown the dialysis fluid into the blood circuit 3 from the fluid replacement passage 27A whether the fluid replacement passage 27A is connected either to the artery side passage 21 or to the venous side passage 22 according to difference in pressure measured by the supply side pressure sensor S3 and the retrieval side pressure sensor S4.SELECTED DRAWING: Figure 2

The invention provides a hemodialysis device and a detection method, wherein the hemodialysis device can detect that a fluid infusion pipeline is reversely installed on the front side and the rear side of a fluid infusion pump. A hemodialysis device (100) according to the present disclosure includes a venous pressure sensor (112f), and measures the gas pressure in a venous cavity (112b) as venous pressure. In a state in which a flow path upstream of a portion of the fluid replacement line (140) attached to the fluid replacement pump (140a) is open to the dialysate circuit (130), a flow path downstream of the portion of the fluid replacement line (140) attached to the fluid replacement pump (140a) is open to the blood circuit (110), and an arbitrary location of the flow path downstream of the venous lumen (112b) is blocked, the fluid replacement line (140) is closed to the dialysate circuit (130), and the fluid replacement pump (140a) is closed to the blood circuit (110). The control device (160) causes the determination unit to determine, on the basis of variations in venous pressure caused by rotation of the fluid infusion pump (140a), whether or not the fluid infusion line (140) is mounted upside down to the front and rear of the fluid infusion pump (140a).

The invention relates to a portable closed circulation type liver organ preservation cabin and system, and the cabin comprises a cabin body which defines a containing cavity and comprises an upper cabin cover and a lower cabin seat; the bearing thin film is arranged in the containing cavity and comprises an upper thin film body unit and a lower thin film body unit, the upper thin film body unit and the lower thin film body unit can form a closed space for bearing the liver after being connected in a sealed mode, the upper thin film body unit is provided with a liquid supplementing opening used for perfusing a nutrient solution, and the lower thin film body unit is provided with a liquid supplementing opening used for perfusing the nutrient solution. The lower film body unit is provided with a liquid outlet through which the nutrient solution flows out; the bearing part is arranged in the containing cavity, located between the bearing film and the lower cabin seat and used for bearing the liver. The organ preservation cabin can reduce the local normal pressure stress borne by the bottom of the liver, simulate the human body abdominal cavity environment and lubricate the liver, so that damage to the in-vitro liver in the transportation process is reduced.

The application discloses a hemodialysis circulating pipeline, which comprises an arterial pipe and an arterial pot installed on one side of the arterial pipe, the outer wall of the arterial pipe is uniformly connected with a plurality of auxiliary pipes, the top end of the auxiliary pipe is provided with a sealing mechanism, and a buffer pot is installed on the top of the auxiliary pipe for reducing instantaneous impact during liquid supplementing, and the application relates to the technical field of dialysis pipeline. The hemodialysis circulating pipeline has the advantages that the joint anti-loosening performance is improved compared with the traditional conical surface friction joint through the triple anti-loosening mechanism of the axial thread fastening of the external connection fixing mechanism, the end surface elastic sealing and the anti-skid point static friction, the joint effectively resists the low-frequency vibration of a dialysis machine and the continuous pulling of a patient, and the double structure of the elastic clasp axial locking and the steering protrusion circumferential locking of the steering limiting mechanism is matched, the joint anti-pulling-off force is further improved, the serious safety hazards such as blood leakage and joint collapse are fundamentally eliminated, and the risks of patient blood loss and air embolism are avoided.