42 results about "Dialysis fluids" patented technology

A peritoneal-based (“bloodless”) artificial kidney processes peritoneal fluid without need for additional fluids (“waterless”). Fluid is separated into a protein-rich stream and a protein-free stream. The protein-rich stream is regenerated using a sorbent assembly, and its protein composition can be modified by removal of selected protein(s) (“dialysate-pheresis”). It is then reconstituted with additives and returned into the peritoneal cavity, thereby reducing protein-loss and providing oncotic-pressure for ultrafiltration. The protein-free stream is used to produce free water, and an alkaline or acid fluid for optimization of the composition of the regenerated stream. The unused protein-free stream can be used to “reverse flush” the separator to maintain its patency and the excess discarded for fluid-balance regulation. Compared to prior art, immobilization of urease allows more protein rich fluid to be regenerated and re-circulated into the peritoneal cavity for toxin removal and allows practicable development of portable and wearable artificial kidneys.

An automatic exchanger apparatus for peritoneal dialysis fluids is provided having a dialysis fluid bag and a drained fluid bag and arranged for connecting and disconnecting between the end of a peritoneal dialysis circuit equipped with a branching point and the end of a tube extending from a patient to drain the waste dialysis fluid from the cavity of the patient and fill the peritoneal cavity of the patient with a fresh peritoneal dialysis fluid for exchange, and in particular comprises: means A, B, and C for carrying out respectively a step (A) of connecting the end of the patient side tube to the end of the peritoneal dialysis circuit, a step (B) of delivering and draining the waste fluid, and a step (C) of, disconnecting the two ends and connecting the end of the patient side tube to its shut-off member, arranged for carrying out their respective steps (A) and (C) automatically; and a controlling means for controlling the respectively means to execute their respectively steps in a sequence. The apparatus is simple in the construction while carrying out, with much ease, the connection and disconnection of the tubes and the exchange of the fluids including a waste and a fresh supply one, hence avoiding operational errors of the operator and minimizing the possibility of infection and contamination.

A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

The invention concerns a dialysis machine (10) comprising a dialyzer (20) having a first inlet (21) and a first outlet (22) for the bloodstream, dialysate supply mechanism (25), an arterial line (16) connected between the patent's arteriovenous fistula and the dialyzer, a venous line (17) connected between the arteriovenous fistula and the dialyzer, a pump (28) coupled with the arterial line, a dialysate supply line (31), connected between the dialysate supply mechanism and the dialyzer, a dialysate evacuation line (33) connected between a dialysate recuperating container (27) and the dialyzer. The sterile dialysate bags are arranged in a chamber (26) under a gas pressure.

An artificial liver system for treating liver failure includes a reservoir to provide albumin-containing dialysis fluid to the patient's peritoneum, an implantable device including a pump to pump the fluid from the peritoneum to the bladder via respective catheters, control circuitry, battery and transceiver; a charging and communication system configured to periodically charge the battery and communicate with the implantable device to retrieve data reflective of the patient's health; and monitoring and control software, suitable for use with conventional personal computers, for configuring and controlling operation of the implantable device and charging and communication system. The monitoring and control software allows a treating physician to remotely adjust the volume, time, and frequency with which fluid is pumped from the peritoneal cavity to the bladder based on the data reflective of the patient's health.

An extracorporeal blood treatment apparatus is provided comprising a filtration unit (2) connected to a blood circuit (17) and to a dialysate circuit (32), a preparation device (9) for preparing and regulating the composition of the dialysis fluid; a control unit (12) is configured for setting a sodium concentration value for the dialysis fluid in the dialysis supply line (8) at a set point; the setting of the sodium concentration includes the sub-step of calculating the sodium concentration value as an algebraic sum of a main contribution term based on the blood plasma conductivity and of an adjustment contribution term based on a concentration of at least a substance in the dialysis fluid chosen in the group including bicarbonate, potassium, acetate, lactate, citrate, magnesium, calcium, sulphate, and phosphate.

Control methods of a dialysis machine for allowing the dialysate-side detection of a recirculation in an arteriovenous shunt of a patient during ongoing hemodialysis are described. A sensor is arranged downstream of a dialyser and detects a change of a physicochemical parameter PD of outflowing dialysis fluid. Control elements are provided to guide the dialysis fluid in a selected manner through the dialyser or pass it by. Recirculation may be determined by passing the dialysis fluid by the dialyser so that the dialysis fluid is guided unchanged along the sensor for calibration, switching the control elements after optional sensor calibration such that the dialysis fluid flows through the dialyser, and adjusting a desired first blood flow value BF1 in the blood-side extracorporeal circulatory branch so that between an inlet of the extracorporeal circulatory branch and an outlet a recirculation R and, a first clearance K1 are adjusted and the parameter detected by the sensor adopts a corresponding value PD1, changing the first blood flow value BF1 to a second blood flow value BF2, wherein a second clearance K2 is adjusted, and accordingly at the sensor a new parameter value PD2 is provided and detected, and determining the recirculation R by the course of change from the parameter value PD1 to the parameter value PD2.

The invention relates to a method for determining the recirculation in a fistula and / or the cardiopulmonary recirculation part during an extracorporeal blood treatment, according to which the blood to be treated flows in an extracorporeal blood circuit (I) through a blood chamber (8) of a dialyser (6) split by a semi-permeable membrane (7) into the blood chamber and a dialysis liquid chamber (9), and dialysis liquid flows in a dialysis liquid path (II) through the dialysis liquid chamber of the dialyser. The invention also relates to a device for determining the recirculation in a fistula and / or the cardiopulmonary recirculation part, and to a blood treatment device comprising a device for determining the fistula recirculation and / or the cardiopulmonary recirculation part. The method and device according to the invention are based on the fact that the sum of the fistula recirculation (RA) and the cardiopulmonary recirculation part (RCP), i.e. the total recirculation (R), is determined for two blood flow rates which differ from each other. The fistula recirculation and / or the cardiopulmonary recirculation part are then determined from the recirculation for the two blood flow rates. The first recirculation measurement is carried out for a high blood flow (QBH) for which a fistula recirculation can occur, while the second measurement is carried out for a low blood flow (QBL) for which a fistula recirculation does not occur. These two measuring values form the basis of the determination of the fistula recirculation and / or the cardiopulmonary recirculation part.

The invention relates to a blood treatment device (1000), comprising a dialysis filter (100) or a receptacle (9) for a dialysis filter (100), a dialysis-fluid supply line (1) having a first connector (3) for supplying dialysis fluid to the dialysis filter (100), a dialysate discharge line (5) having a second connector (7) for discharging dialysate from the dialysis filter (100), a blood leakage sensor (11) configured and arranged to detect blood in or on the dialysis filter (100), in the dialysis-fluid supply line (1), and / or in the dialysate discharge line (5) and configured to output a blood leakage signal (BLS) if blood is detected, a short-circuit line (13) for connecting the dialysis-fluid supply line (1) and, or to, the dialysate discharge line (5) in fluid communication, wherein for this purpose the short-circuit line (13) has a third connector (15) and a fourth connector (17) each for connecting to one of the first and second connector (3, 7), and a controller (33).

An apparatus for extracorporeal treatment of blood (1) comprising a filtration unit (2), a blood withdrawal line (6), a blood return line (7), an effluent fluid line (13), a pre and / or post-dilution fluid line (15, 25) connected to the blood withdrawal line, and a dialysis fluid line. Pumps (17, 18, 21, 22, 27) act on the fluid lines for regulating the flow of fluid. A control unit (10) is configured to periodically calculate a new value for the patient fluid removal rate to be imposed on an ultrafiltration actuator in order to keep a predefined patient fluid removal rate across a reference time interval irrespective of machine down times.

A peritoneal dialysis catheter, comprising a catheter body, a glucose monitoring probe and a strip-shaped liquid bag, one end of the catheter body is a dialysis area, and a plurality of dialysis holes are opened on the dialysis area, the other end is connected to an external dialysis fluid bag, and the catheter body is provided with a dialysis hole One end of the strip-shaped liquid bag is connected with the glucose monitoring probe, and the strip-shaped liquid bag is set in the inner cavity of the catheter body, and the length is not less than the length of the dialysis area on the catheter body. The catheter body is connected to one end of the external dialysate bag, and a rubber stopper is provided at the opening of the liquid injection port. The invention has the advantages that the peritoneal dialysis catheter does not float, has good sealing performance, does not block the dialysis hole, and can monitor the glucose concentration of the dialysate in the peritoneal cavity in real time.

The invention discloses a hemodialyzer which comprises two dialysis tubes. The two dialysis tubes are connected into a Y shape, and the two dialysis tubes are communicated with each other at the joint and provided with a middle connector; the end, away from the middle connector, of each dialysis tube is provided with a blood interface and a dialysis fluid interface; a hollow fiber membrane is arranged in each dialysis tube; the whole hollow fiber membranes are arranged in the two dialysis tubes respectively, and the diameter of a hollow fiber membrane bundle in each dialysis tube is reduced under the condition that the number of the whole hollow fiber membranes is unchanged, so that sufficient dialysis is conducted on blood in the dialysis tubes and dialysis fluid; blood needs to flow back in the Y-shaped hemodialyzer, so that the blood flow distance and time are increased, and the dialysis efficiency is improved; when a patient feels uncomfortable, the blood can only flow out from the middle connector by means of one dialysis tube, so that the pre-congestion amount during dialysis is reduced, the discomfort of the patient is relieved, and the dialysis process does not need to be interrupted. The invention further discloses a hemodialysis device and method using the hemodialyzer.

A tube-docking holding device includes a first connector bracket and a second connector bracket. The first connector bracket includes two shells. When the two shells are closed, a first accommodation space is surrounded for fixing a portion of a first connector assembly of a catheter. The second connector bracket includes a base body and a cover body. The base body includes a first inner shell and a first outer shell. The cover body includes a second inner shell and a second outer shell. When the cover body and the base body are closed, the first inner shell and the second inner shell surround and define a second accommodation space for fixing a portion of a second connector assembly of a dialysate tube. An interconnected guiding space is formed between the first inner shell and the first outer shell and between the second inner shell and the second outer shell.

The mentioned invention describes an ergonomic belt for persons with peritoneal dialysis which is used for care of the patients after having surgery, specifically for kidney failure, where a catheter is placed to carry out the dialysis, the benefits of the usage of the mentioned invention provide abdominal support allowing to ensure the care of the suture, so it won't open because of the movement or the patient's efforts.It also has the particularity to protect the catheter, since there is an orifice that could be outside of the belt preventing for it to bend or to be pulled under the weight of the dialysis fluids, also having a compartment where the catheter could be located protecting at the same time from the environment exposition and the perspiration of the patient, so it can be assured not having infections that could harm the integrity of the person carrying it.

The invention discloses a method for connecting and controlling a pipeline between a peritoneal dialysis machine and a patient. The pipeline comprises a dialysate bag and a waste liquid bag of an automatic peritoneal dialysis machine, the automatic peritoneal dialysis machine communicates with the dialysate bag through a perfusion tube, the automatic peritoneal dialysis machine communicates with an abdomen inlet tube through a perfusion pipeline of the peritoneal dialysis machine, a heating bag is arranged at one section of the perfusion pipeline of the peritoneal dialysis machine, the outletend of the abdomen inlet tube communicates with the abdominal cavity of the patient, and the inlet end of the abdomen inlet tube communicates with the waste liquid bag through a drainage pipeline of the peritoneal dialysis machine and a drainage pipe. The invention relates to the technical field of peritoneal dialysis pipeline connection. According to the method for connecting and controlling a pipeline between a peritoneal dialysis machine and a patient, the problems that dialysate perfusion and drainage of an existing automatic peritoneal dialysis machine share one pipeline, so that residualwaste dialysate in the pipeline is proneto be injected into the abdominal cavity of a human body again, and the heating speed of the dialysis machine for the dialysate is low are solved.

The invention provides a peritoneal dialysis external catheter structure convenient to use. The peritoneal dialysis external catheter structure convenient to use comprises a fixing piece attached to the abdomen of a patient; and the guide pipe structure comprises an installation pipe, and the installation pipe is installed in the fixing piece. According to the peritoneal dialysis external catheter structure convenient to use, by arranging the catheter structure, the abdomen of a patient is mainly connected with dialysis equipment, so that dialysate can be input into the body of the patient, the mounting tube is arranged on the fixing piece, and the fixing piece is effectively and tightly mounted at the abdomen of the patient through the fixing band, so that the patient can be conveniently and rapidly fixed. The catheter structure is stably mounted, so that the mounting tube and the access tube can move along with the movement of the body of the patient, the situation that the access tube falls off from the abdomen of the patient can be well avoided, meanwhile, the length of the catheter structure is kept unchanged, and the patient has a large movement range.

The invention relates to systems and methods for optimizing a peritoneal dialysate prescription based on one or more fluid characteristics sensed from a filtrate removed from a patient. The systems and methods include sensors, flow paths, and processors to adjust a peritoneal dialysate prescription and deliver peritoneal dialysis therapy to a patient based on the adjusted prescription. The method can include the steps of removing fluid from a peritoneal cavity of a patient; sampling one or more characteristics of the removed fluid; and adjusting a peritoneal dialysate prescription based on the one or more characteristics of the removed fluid. The system can include a peritoneal dialysate effluent line; at least one concentrate source fluidly connectable to the peritoneal dialysate flow path; and at least one sensor positioned in the peritoneal dialysate effluent line.

The invention discloses a peritoneal dialysis nursing simulation device, which comprises a liftable bearing seat, an object model, a telescopic hanging rod and a dialysis pipeline assembly. The abdomen of the object model is provided with a catheter placing hole, the object model is detachably arranged on the liftable bearing seat, and the object model is driven to ascend or descend through the liftable bearing seat; the telescopic hanging rod is mounted on the liftable base and is suitable for hanging dialysate; the dialysis short tube assembly comprises a dialysis tube and an external shorttube, the near end of the dialysis tube is suitable for being inserted into the abdominal cavity of the object model from the tube placing hole, and the external short tube is suitable for being connected with the far end of the dialysis tube. According to the peritoneal dialysis nursing simulation device provided by the embodiment of the invention, the object model and the dialysis pipeline assembly are used for training dialysis nursing operation, so that the dialysis practical operation capability of nursing personnel or family members is improved, and the use and the operation are convenient and simple.

Dialysis systems and methods for operating a dialysis machine (e.g., a peritoneal dialysis machine) for dialysis treatment are disclosed. The dialysis system may include a dialysis machine for delivering dialysate from a dialysate source to a patient. The dialysate may flow from the dialysate source through a cartridge or cartridge (e.g., a disposable cartridge or cartridge) that may be positioned within the dialysis machine. The cartridge includes a fluid flow channel. The dialysis machine includes a heating chamber for serial heating of dialysate in a fluid flow channel. The fluid flow channel is arranged and configured to provide turbulence of the dialysate through the fluid flow channel to provide enhanced heat transfer from the heating chamber to the dialysate.

A tube-docking holding device includes a first connector bracket and a second connector bracket. The first connector bracket includes two shells. When the two shells are closed, a first accommodation space is surrounded for fixing a portion of a first connector assembly of a catheter. The second connector bracket includes a base body and a cover body. The base body includes a first inner shell and a first outer shell. The cover body includes a second inner shell and a second outer shell. When the cover body and the base body are closed, the first inner shell and the second inner shell surround and define a second accommodation space for fixing a portion of a second connector assembly of a dialysate tube. An interconnected guiding space is formed between the first inner shell and the first outer shell and between the second inner shell and the second outer shell.

A quick flushing device for a hemodialysis solution barrel, including a sink and a frame, characterized in that a frame-shaped bucket holder is installed horizontally on the rectangular sink opening, and a plurality of "L"-shaped flushing pipes are installed above the bucket holder , the upper end of the flushing pipe is connected with the main water pipe by a valve, and the lower end extends into the bucket rack. There are two small holes on the upper side wall of the horizontal part of the flushing pipe at an angle of 5-10 degrees. The lower end of the flushing pipe is on the There is a water outlet with a diameter smaller than the inner diameter of the water pipe at the end; the upper part of the rear side wall of the frame is horizontally equipped with a main water pipe, one end of the main water pipe is closed, the other end is equipped with a main water pipe valve, and the left and right ends are respectively connected to the outer wall of the barrel A flushing pipe, a valve is installed on the barrel outer wall flushing pipe, and a plastic hose is connected at the end. It solves the problem of time-consuming, laborious and water-consuming manual flushing of dialysate buckets, and is suitable for flushing dialysate buckets in hemodialysis centers of medical institutions.

The invention relates to the technical field of medical instruments, in particular to a blood purification device. The device comprises a group of filtering assemblies, a positioning assembly, a dialysis tube, an upper tube cover and a lower tube cover, each filtering assembly comprises an outer pipe and an inner pipe connected into the outer pipe in a penetrating mode, the positioning assembly comprises a first circular plate and a second circular plate, a liquid inlet tube is arranged on the tube body at one end of the dialysis tube close to the lower tube cover, grooves are formed in the surfaces of the upper tube cover and the lower tube cover, a cavity between the first circular plate and the second circular plate in each groove is a blood chamber, a cavity between the second circularplate and the bottom of each groove in each groove is a liquid chamber, a liquid outlet pipe and a blood outlet pipe are arranged on the lower tube cover, a blood inlet pipe is arranged on the uppertube cover, and a group of flow guide grooves are formed in the upper tube cover and communicate the interior of the dialysis tube with the liquid chamber of the upper tube cover. According to the device, the membrane rupture phenomenon can be effectively avoided, and meanwhile the contact area of blood and dialyzate in a dialyzer can be effectively increased, and the affinity to the body of a patient can be effectively improved.

The invention relates to a dialyzer (6; 6'; 6''; 6''') for extracorporeal blood treatment having an elongate dialyzer housing (14; 14'; 14''; 14'''; 14'''') and at least one dialysis membrane (30; 30'; 30''; 30'''; 30''''), which divides an interior of the dialyzer housing (14; 14'; 14''; 14'''; 14'''') into a dialysis fluid chamber (32; 32'; 32''; 32'''; 32''''), which has a dialysis fluid supply connection (44; 44'; 44''; 44'''; 44'''') and a dialysis fluid discharge connection (46; 46'''), and a blood chamber (38; 38'; 38''; 38'''; 38''''), which has a blood supply connection (40; 40''') and a blood discharge connection (42; 42'; 42''; 42'''; 42''''). The dialyzer has an additional ventilation outlet (48; 48'; 48''; 48'''; 48'''') for ventilating the blood chamber (38; 38'; 38''; 38'''; 38''''), which is formed on the dialyzer housing (14; 14'; 14''; 14'''; 14'''') on or near an end face thereof. The additional ventilation outlet (48; 48'; 48''; 48'''; 48'''') is provided in the blood discharge connection (42; 42'; 42''; 42'''; 42'''') between an outlet area (58; 58'; 58''; 58'''; 58'''') of the blood discharge connection (42; 42'; 42''; 42'''; 42'''') and the dialysis fluid supply connection (44; 44'; 44''; 44'''; 44''''), in respect of a blood flow direction (Bo; Bo'; Bo''; Bo'''; Bo''''). The invention further relates to a corresponding dialysis apparatus (2) having a ventilation outlet (48; 48'; 48''; 48'''; 48'''') provided on a dialyzer housing (14; 14'; 14''; 14'''; 14'''') or on a hose (62'''') connected to a blood discharge connection (42'''').

The invention relates to a peritoneal dialysis device, in particular to a peritoneal dialysis device facilitating waste liquid treatment. The peritoneal dialysis device facilitating waste liquid treatment comprises a shell, a supporting frame, a lifting block, a discharging frame, a v-shaped pipe, a connector and the like, the supporting frame is connected to the rear side of the top of the shell, the lifting block is slidably connected to the upper portion in the supporting frame, the discharging frame is connected to the upper portion in the lifting block, and the connector is clamped to the front side in the supporting frame. The v-shaped pipe is connected to the right side of the connector, and one end of the v-shaped pipe penetrates through the bottom of the discharging frame and is connected with the bottom of the discharging frame in a clamped mode. A constant-temperature box can heat dialysate in a dialysis bag, an electric heating pipe can heat the dialysate in the dialysis bag in the discharging frame, the temperature of the dialysate is kept close to the body temperature of a patient, a collecting frame can collect more waste liquid at a time, therefore, medical staff do not need to frequently replace the waste liquid bag, and operation is easy.

The invention provides a multi-port connector used for medical treatment, and relates to the technical field of medical devices. The multi-port connector comprises a top cover, a base plate and a multi-way valve; the top cover is buckled at the top end of the base plate; the top cover is made of a rigid transparent material; the upper part of the base plate is provided with an annular detachable sealing strip; the multi-way valve is installed in the base plate; the base plate is provided with three ports; and communicating of any two ports is realized by rotating the multi-way valve. Accordingto the multiport connector provided by the invention, the circulation situation of dialyzate can be directly observed, and the top cover is kept at an initial position during transportation; and themulti-port connector has the beneficial effects of being convenient to use and facilitating observation.

The invention provides peritoneal dialysis fluid inner packing line equipment. In process sequence, the peritoneal dialysis fluid inner packing line equipment sequentially comprises a conveying line,a light inspection station, a waste fluid bag feeding device, a tube cutting inflation device, an automatic intubation device, a finishing line, a packing bag feeding device, an automatic bagging device, an automatic vacuumizing sealing device and a power distribution control box. The waste fluid bag feeding device is composed of positioning tool plates and a plate-chain conveyor; the tube cuttinginflation device is composed of a positioning tool plate, a cutter, a clamping positioning device, a reciprocating inflation device and a waste recovery device; the automatic intubation device is composed of truss robots, a plane visual system, a plate-chain conveyor, mechanical arms, a clamping positioning device and waste fluid bag brackets; the packing bag feeding device is composed of storageboxes, a lifting mechanism and a horizontal movement mechanism; the automatic bagging device is composed of a bag grasping mechanism, a bag opening mechanism, a bagging mechanism, a positioning mechanism, a bag pushing mechanism and a plate-chain conveyor; the automatic vacuumizing sealing device is composed of a vacuum generation device, a positioning device and a heat sealing mechanism. Compared with the prior art, labor intensity is relieved, manpower is saved, and the standardization, mechanization and automation of peritoneal dialysis fluid inner packing production are achieved.

A priming method (300, 500, 600) and a priming apparatus (700) are provided. The priming method (300, 500, 600) comprises: controlling, on the condition that an arterial line (230) is blocked and a venous line (240) is opened, a supply device to deliver a priming solution to a dialysate compartment (222) of a dialyzer (220), wherein one end of the arterial line (230) with a blood pump (235) and one end of the venous line (240) with a venous chamber (244) are connected to a blood compartment (224) of the dialyzer (220) and the other end of the arterial line (230) and the other end of the venous line (240) are connected to a container (270, 275) via a connector (280, 285), and the priming solution in the dialysate compartment (222) crosses a membrane of the dialyzer (220) and enters into the venous line (240); turning on, after a predefined amount of priming solution is delivered into the dialysate compartment (222) by the supply device, the blood pump (235) to circulate the priming solution in an extracorporeal circuit composed of the arterial line (230), the blood compartment (224) and the venous line (240). The priming method (300, 500, 600) and the priming apparatus (700) can be applicable in the basic and advanced dialysis machines.