773results about "Peritoneal dialysis" patented technology

The solid-liquid separation mechanism for the peritoneal dialysis waste liquid bag treatment device comprises a separation chamber, a moving mechanism, a guide rail assembly and a separation assembly, the separation chamber is located above the separation assembly, a peritoneal dialysis waste liquid bag achieves liquid-bag separation in the separation chamber through the separation assembly, and the separation chamber is connected with the moving mechanism and the guide rail assembly. The moving mechanism drives the separation chamber to move along the guide rail assembly, the broken peritoneal dialysis waste liquid bag falls into the separation chamber and stands in the separation chamber, so that the peritoneal dialysis waste liquid flows out of the broken peritoneal dialysis bag, the flowing-out peritoneal dialysis waste liquid flows out of the separation chamber through the separation assembly, and after the peritoneal dialysis waste liquid completely flows out, the moving mechanism drives the separation chamber to move along the guide rail assembly; and the peritoneal dialysis bag is pushed away from the separation chamber, so that the peritoneal dialysis waste liquid is separated from the peritoneal dialysis bag.

Components for a medical infusion fluid handling system, such as an APD system, in which one or more lines (such as solution lines), spikes or other connection ports may be automatically capped and / or de-capped. This feature may provide advantages, such as a reduced likelihood of contamination since no human interaction is required to de-cap and connect the lines, spikes or other connections. For example, a fluid handling cassette may include one or more caps that cover a corresponding spike and include a raised and / or recessed feature to assist in removal of the cap from the cassette. A solution line cap may include a hole and recess, groove or other feature to engage with a spike cap and enable removal of the cap.

The invention relates to an automatic peritoneal dialysis machine auxiliary system capable of preventing peritoneal protein from being lost, and belongs to the technical field of peritoneal dialysis. By arranging the auxiliary system comprising a hollow fiber membrane filter, peritoneal drainage liquid is guided into the hollow fiber membrane filter in the drainage stage; the protein is intercepted by utilizing the semi-permeable membrane characteristic, and small molecule metabolic wastes penetrate through the semi-permeable membrane characteristic to form a filtrate rich in the protein; and then the feedback pump speed is dynamically adjusted through a control system based on a signal of a flow sensor, so that the feedback process of the protein liquid is stably synchronized with drainage, liquid injection and staying stages of the automatic peritoneal dialysis machine, online recovery and safe feedback of protein are realized, and the problem that the protein liquid flows back to the treatment cycle of the automatic peritoneal dialysis machine is solved on the premise that the treatment cycle is coordinated with the treatment cycle of the automatic peritoneal dialysis machine. Protein in peritoneal drainage liquid is continuously and selectively recovered and safely returned, so that the problem of protein trophism loss of long-term peritoneal dialysis patients is directly reduced.

A system including a pumping cassette having a first side including number of valve wells and second side having a fluid bus. Each side may be covered by a flexible membrane. A control surface having a number of valve well control stations actuatable with respect to the flexible membrane covering the first side of the cassette to open and close the valve wells when the cassette is mated against the control surface may be included. A pressure distribution assembly having a positive and negative pressure source and a number of pneumatic valves may be included. A controller configured to selectively actuate the number of pneumatic valves to apply pressure against the valve well control stations in a valve pumping sequence until a volume displaced through the fluid bus of the pumping cassette from a source to a destination is within a range of a target volume may be included.

This disclosure relates to systems for medical fluid pumps and related methods. In some implementations, a system includes a system for draining fluid from a peritoneal cavity of a patient comprising a microfluidic pump; a drain bag fluidly coupled to the microfluidic pump; and an inlet line coupled to the drain bag, wherein the microfluidic pump is configured to apply a negative pressure to an interior of the drain bag to draw effluent from a peritoneal cavity of the patient along the inlet line and into the drain bag. In some implementations, a system for performing peritoneal dialysis includes a microfluidic pump; a dual chamber bag fluidly coupled to the microfluidic pump, where the dual chamber bag includes an effluent chamber configured to be fluidly coupled to a peritoneal cavity of a patient; a dialysate chamber; and a flexible membrane separating the effluent chamber from the dialysate chamber.

The invention discloses a peritoneal dialysis system which comprises an abdominal cavity pipeline with the first end communicated with the abdominal cavity of a human body; the semi-permeable membrane assembly comprises a membrane, a first side and a second side, the first side and the second side are separated by the membrane, and the first side is communicated with the second end of the abdominal cavity pipeline so as to receive the abdominal cavity dialysate from the abdominal cavity pipeline and inject the abdominal cavity dialysate into the abdominal cavity of the human body; the external liquid path system comprises an external liquid pipeline communicated with the second side, and the external liquid pipeline comprises a waste liquid outlet for outputting dialysis waste liquid led out from the peritoneal dialysis liquid through the membrane; when the peritoneal dialysis solution is led out, the membrane allows moisture and small molecular solutes in the peritoneal dialysis solution to permeate into the second side and entraps a macromolecular penetrant on the first side so as to maintain the osmotic pressure of the peritoneal dialysis solution.

A system includes an extracorporeal blood treatment device and a heat exchanger for heat exchange between dialysate flowing from the extracorporeal blood treatment device and permeate to be supplied to the extracorporeal blood treatment device. The extracorporeal blood treatment device and the heat exchanger are configured as separate devices.

The invention discloses a movable assistor for peritoneal dialysis, and relates to the technical field of peritoneal dialysis. The movable assistor for peritoneal dialysis comprises a bottom plate, a fixing rod is fixedly arranged on the top face of the bottom plate, the outer wall of the fixing rod is slidably sleeved with a lifting sleeve, a plurality of self-locking wheels are fixedly arranged on the bottom face of the bottom plate, and a lifting mechanism, a dialysis mechanism, a placing mechanism and a fixing mechanism are arranged above the bottom plate. The dialysis mechanism has the technical effects that the dialysis mechanism is composed of the monitoring part and the control part, an automatic monitoring and intelligent control system for the dialysis process is formed, two tray scales of the monitoring part can monitor the weight change of a dialysate container in real time, and the weight information is transmitted to the control calculator through a second data line; the two intelligent flow monitoring valves are installed at the bottom of the connecting pipe and can monitor the flow of dialysate in real time and transmit data through the first data line, and the calculator is controlled to analyze and process the received weight and flow information.

The present application relates to a kind of peritoneal dialysis catheter fixing auxiliary device, including the bottom plate for shielding stoma and the bandage for fixing bottom plate on patient's body, first through-hole for dialysis tube to pass through is opened in the thickness direction on the bottom plate, sleeve is mounted in the first through-hole, one end of the sleeve is communicated with first through-hole, the other end extends downward;Rotary fit has cover plate above the bottom plate, the bottom surface of the cover plate is sealed with the top surface of bottom plate, second through-hole is opened in the thickness direction on the cover plate, the first through-hole is located on the rotation track of second through-hole.This technical solution, by setting sleeve, can avoid stoma healing during interval, without using special dialysis tube daily care tool, effectively reduce the discomfort of patient's daily life, and can adjust the opening and closing state of stoma, facilitate medical staff operation.

A method of reducing leakage current from a patient to a ground potential through an applied part of a medical device includes defining a maximum permissible leakage current Amax from the patient to the ground potential when the patient is energized to an electric potential V and supplying the medical device with water having a resistivity value ρ through a fluid line having a length L and an inner diameter ID. The value of L and ID is selected to cause the fluid conduit filled with water of resistivity ρ to have a resistance of R high enough to maintain the leakage current from the patient to the ground potential below Amax.

Damping devices, including damping devices for automated peritoneal dialysis (APD) systems, and associated systems, devices, and methods are disclosed herein. In one embodiment, a damping device includes a body portion, a first membrane, and a second membrane. The body portion can include a first side, a second side opposite the first side, an inlet, and a cavity fluidly coupled to the inlet. The cavity can be defined at least in part by a lumen in the body portion extending from the first side to the second side. The first membrane can be affixed to the first side of the body portion such that the first membrane hermetically seals the cavity at the first side. The second membrane can be affixed to the second side of the body portion such that the second membrane hermetically seals the cavity at the second side.

In some examples, a sensor for detecting dextrose includes at least one working electrode including Cu and being configured to electro-oxidize dextrose in an aqueous solution. The sensor further includes at least one counter electrode. In some examples, a system includes a fluid line, a dextrose container, a peritoneal dialysis container, and the sensor. The fluid line is configured to transport water. The dextrose container is configured to introduce dextrose in the fluid line to generate a peritoneal dialysis composition comprising the water and dextrose. The peritoneal dialysis container is downstream of the dextrose container and configured to receive the peritoneal dialysis composition. The sensor may be configured to detect dextrose in the peritoneal dialysis composition.

A method of performing peritoneal dialysis (PD), the method comprising: delivering a PD fluid to the peritoneal cavity of a patient through a PD catheter; dwelling the PD fluid within the peritoneal cavity; and while dwelling the PD fluid, removing a biofilm from the PD catheter wall using a biofilm removing solution. The biofilm removing solution comprises: sodium citrate dihydrate; citric acid anhydrous; sodium lauryl sulfate; and water. In another aspect, a method for decontaminating a peritoneal dialysis (PD) catheter and removing a biofilm from the PD catheter and a transfer set, the method comprising: providing a biofilm removing solution; transferring the biofilm removing solution into a syringe; connecting the syringe to a transfer set of the PD catheter; and filling the transfer set and the PD catheter with the biofilm removing solution.

The utility model relates to the technical field of peritoneal dialysis, and provides a consumable box connecting piece and peritoneal dialysis equipment. The consumable box connecting piece is used for installing a consumable box, an elastic arm capable of being opened and closed is arranged on the side face of the consumable box, a limiting boss is formed on the elastic arm, the elastic arm is suitable for driving the limiting boss to be close to or away from the consumable box, the consumable box connecting piece comprises a connecting piece body, and an installing groove used for fixing the consumable box is formed in the connecting piece body. A limiting hole is formed in the side face, facing the elastic arm, of the mounting groove, and the limiting hole of the mounting groove is used for being connected with a limiting boss of the consumable box in a clamped mode. According to the consumable box connecting piece, the fixing effect of the consumable box can be enhanced, and the consumable box is prevented from loosening or falling off.

A medical fluid system includes a medical fluid pump actuator; a medical fluid carrying set including a flexible sheet; a temperature sensor positioned and arranged to sense a temperature of the medical fluid flowing through the medical fluid carrying set; a pressure sensor positioned and arranged to contact the flexible sheet when the medical fluid carrying set is loaded for operation with the medical fluid pump actuator; and a control unit configured to (i) precondition the flexible sheet for operation with the pressure sensor by causing the medical fluid pump actuator to apply pressure to the flexible sheet and (ii) use an output from the temperature sensor in a compensation algorithm that modifies an output from the pressure sensor.

A blood treatment machine includes a patient comfort feedback mechanism configured to be adjusted by a patient to indicate comfort levels of the patient. The machine is configured to adjust one or more treatment parameters based on the patient feedback.

In fluorometer diagnostic mode, the system moves water and fluorescent probe material from the mixing chamber to the fluorometer. In filter diagnostic mode, the system moves water and fluorescent probe material from the mixing chamber to the inlet so that (i) a first portion of water and fluorescent probe material exits through the bypass outlet, moves into the mixing chamber, and returns, and (ii) a second portion of water passes through the filter to the fluorometer. In dialysate dispensing mode, the system moves dialysate and fluorescent probe material from the mixing chamber to the inlet so that (i) a first portion of dialysate and fluorescent probe material exits through the bypass outlet, moves into the mixing chamber, and returns, and (ii) a second portion of dialysate passes through the filter to the fluorometer.

The present invention relates to a urine drainage device with quick automatic response and a dedicated drainage material. An anti-leakage housing 20 in the dedicated drainage material is provided with an automatic trigger switch, which can automatically sense a urination status of a patient, and quickly respond to starting negative pressure suction. The automatic trigger switch is automatically turned off after urination ends, and the urine drainage device 10 returns to a standby or dormant state. By means of the technical solution, not only is the cost of the prepared nursing consumable lower, the universality is high, but also the sensitivity of urination status monitoring is high, the probability of distortion or false triggering is extremely low, and the response time of starting negative pressure is short, thereby avoiding the problem of urine overflow caused by delayed urine sensing or delayed negative pressure starting after urination.

A system for peritoneal dialysis operates according to a measurement method to supply a first fluid (F1) to the peritoneal cavity PC, leaving an intraperitoneal volume of fluid in the PC, extracting a first volume (V1) of fluid from the PC and measuring a first value of a concentration-related parameter of the fluid thus extracted. The system then operates to supply a second volume (V2) of a second fluid (F2) to form a mixture with the intraperitoneal volume of fluid in the PC, extracting a third volume (V3) of the mixture from the PC and measuring a third value of the parameter of the mixture thus extracted. The second fluid (F2) has a second value of the parameter and is compositionally different from the first fluid (F1). The use of such a second fluid (F2) allows the intraperitoneal volume to be determined with high accuracy based on the second volume (V2) and the first, second and third values.

To provide biological fluid purification using a biocompatible membrane.SOLUTION: An apparatus for integrated adaptive biological blood purification includes a function unit. The function unit is provided with: a membrane including a pipe surface and a filtration surface; a blood vessel channel system which is adhered to the blood vessel surface of the membrane and includes a first lumen space in fluid communication with the blood vessel surface of the membrane, a first end configured to be in fluid communication with a fluid supply part and to contact the same, and a second end configured to be in fluid communication with a filtration fluid outlet and to contact the same; and a filtration channel system which is adhered to the filtration surface of the membrane and includes a second lumen space in fluid communication with the filtration surface of the membrane and a third end configured to be in fluid communication with a filtrate outlet and to contact the same.SELECTED DRAWING: Figure 11

An intraperitoneal pressure ("IPP") measurement device is disclosed herein. In one embodiment, the IPP measurement device includes a transferset or catheter fluidly coupled to a patient's abdominal cavity and a pressure sensor adapted to contact the transferset or catheter. The pressure sensor is configured to transmit output data indicative of IPP within the patient's abdominal cavity. The pressure sensor includes a pressure element configured to measure pressure exerted by fluid in the transferset or catheter. The pressure sensor also includes a pressure amplifier having a first side contacting a portion of the transferset or catheter and a second side contacting the pressure element. The first side has a larger diameter or surface area compared to the second side to amplify the pressure signal for IPP measurement.

The fluid preparation device is configured to provide (205) a medical fluid for use in dialysis therapy by generating (204) a mixture of a base fluid and one or more concentrated fluids, each of the one or more concentrated fluids being stored in a respective container. The control device determines (203) a reference concentration of the concentrated fluid at a reference point in time by operating (202) the device to pump the concentrated fluid to a sensor device for measuring a component-related parameter. The control device estimates (206) an instantaneous concentration of the concentrated fluid as a function of time by using the reference concentration and at least one calculation function for calculating an evaporative moisture loss over time from the container. Before or during the production of the mixture, the control device adjusts (207) a mixing ratio between the base fluid and the concentrated fluid based on the instantaneous concentration to produce a mixture having the target component.

The peritoneal dialysis (PD) system (10) includes a PD machine (20), a patient line (50) extending from the PD machine (20), and a filter set (100), the filter set (100) including a filter housing (102) having a tubular filter membrane (120, e.g., a sterile grade filter membrane or a sterilized filter membrane) positioned and arranged to filter fresh PD fluid flowing radially across the tubular filter membrane (120), and a transfer set side port (106p) positioned and arranged to receive (i) filtered fresh PD fluid during patient fill and (ii) spent PD fluid during patient drain.

Exemplary systems and methods for estimating progression of chronic kidney disease in a patient and applying clinical interventions may include determining historic values of at least one patient parameter that varies as a function of the progression of the chronic kidney disease over time, and computationally estimating a trend corresponding to the historic values. Based on the trend, at least one marker may be automatically provided that identifies a clinical intervention and a time in the future when the clinical intervention is expected to be needed. Based on the at least one marker, clinical preparations may be executed at a time prior to the administration of the intervention in order to improve at least one of a) timeliness of the execution of the intervention and b) effectiveness of the intervention.

Systems and methods are disclosed for assessing the functionality of solenoid valve activation in peritoneal dialysis systems. In at least one embodiment, measurements of current values may be received from a solenoid valve at a predetermined sampling rate over a predetermine duration of time to generate a current profile for the solenoid valve. A fifth degree polynomial model may be fit to the current profile and optimized. The optimized polynomial model may be applied to a trained support vector machine to determine whether the current profile indicates that the corresponding solenoid valve has actually opened or closed.

The utility model relates to the technical field of peritoneal dialysis equipment, and discloses a pipeline speed controller which comprises a lower clamping plate and an upper clamping plate, a peritoneal dialysis pipeline body is arranged between the lower clamping plate and the upper clamping plate in a clamped mode, and a plurality of clamping mechanisms are arranged on the two sides of the lower clamping plate and the two sides of the upper clamping plate in a clamped mode. A pipeline flow speed control mechanism is fixedly arranged on the upper end face of the upper clamping plate, and first handles are arranged on the two sides of the lower clamping plate correspondingly. According to the peritoneal dialysis catheter, the catheter flow speed control mechanism is arranged at the upper end of the upper clamping plate, the baffle can compress the peritoneal dialysis catheter body by rotating the rotating handle, and therefore the purpose of controlling the flow speed of dialysate in the peritoneal dialysis catheter body is achieved, and meanwhile the upper clamping plate and the lower clamping plate are clamped and positioned through the limiting rod and the limiting hole; the upper clamping plate and the lower clamping plate can be detached by detaching the clamping mechanism after dialysis is completed, so that the pipeline speed controller can be repeatedly used, and the dialysis cost is reduced.

A medical fluid delivery system includes a medical fluid delivery machine configured to generate a message indicating that the medical fluid delivery machine is ready to perform a task; and at least one server in data communication with the medical fluid delivery machine via a first link to receive the message, the at least one server configured to (i) relay the message from the medical fluid delivery machine to a remote mobile communication device via a second link, (ii) receive a response from the remote mobile communication device indicating to start the task via the second link, and (iii) send a notification to the medical fluid delivery machine to start the task via the first link.