УСТРОЙСТВО ДЛЯ ВЫРАБОТКИ СВЕРХЧИСТОЙ ВОДЫ

FIELD: chemistry. SUBSTANCE: invention relates to a device for water purification according to the principle of reverse osmosis. The device for the production of superpure water according to the principle of reverse osmosis contains a reverse osmosis filter which is divided into a primary chamber and a secondary chamber, a primary circuit, through which raw water is supplied to the primary chamber and through which a concentrate is discharged from it, and a secondary circuit for the supply of a permeate to at least one consumer, preferably to a dialysis apparatus. A pump is built into a pipeline of the primary circuit, and a valve with a drain is built into the pipeline of the primary circuit concentrate. In or on the primary circuit and/or secondary circuit placed is a device for the registration of organic and/or inorganic deposits, connected with the device of data processing, with an elastic, extendable buffer vessel, adapted for carrying out reverse washing of a membrane with the permeate, being built into the secondary circuit. The device for the registration of organic and/or inorganic deposits is made with a possibility of initiating reverse washing in case of a respective degree of contamination. EFFECT: invention makes it possible to reduce expenditures for the device exploitation due to refusal from periodic cleaning of the membrane and automatic determination of a necessity of the pipeline disinfection. 10 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 536 993 C2 (51) МПК C02F 1/44 (2006.01) B01D 61/12 (2006.01) B01D 65/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012140697/05, 24.09.2012 (24) Дата начала отсчета срока действия патента: 24.09.2012 (72) Автор(ы): ФЁЛЬКЕР Манфред (DE) (73) Патентообладатель(и): ФЁЛЬКЕР Манфред (DE) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.03.2014 Бюл. № 9 R U 24.09.2011 DE 102011114912.4 (45) Опубликовано: 27. ...

УСТРОЙСТВО ДЛЯ ВЫРАБОТКИ СВЕРХЧИСТОЙ ВОДЫ

... 1. Устройство для выработки сверхчистой воды по принципу обратного осмоса с фильтром обратного осмоса, который мембраной обратного осмоса разделен на первичную камеру и вторичную камеру, с первичный контуром, через который к первичной камере подводится сырая вода и из нее отводится концентрат, а также вторичным контуром для подвода пермеата по меньшей мере к одному потребителю, предпочтительно аппарату для диализа,отличающееся тем, чтов или на первичном контуре (1, 4, 5, 9, 17, 18) и/или вторичном контуре (8, 15, 16) расположено устройство для регистрации органических и/или неорганических отложений, которое соединено с устройством обработки данных.2. Устройство по п.1, отличающееся тем, что устройство обработки данных соединено с устройством индикации измеряемых значений.3. Устройство по п.1, отличающееся тем, что устройство обработки данных при достижении или превышении предварительно заданного граничного измеряемого значения выдает предупредительный сигнал.4. Устройство по п.1, отличающееся ...

Modular home dialysis system - debubblers

An apparatus for removing air bubbles from blood is disclosed. The debubbler comprises front and rear covers (1002, 1008 respectively) with a fluid circuit board (1004) arranged between the two covers. A blood chamber is defined between cover (1002) and circuit board (1004) and an air chamber is defined between covers (1008) and circuit board (1004). A microporous membrane (1006) separates the blood and air chambers. A support means (1024) supports membrane (1006) from the air side of the membrane. A blood pressure sensor is provided between covers (1002, 1008). The debubbler has a blood inlet port (1022) and a blood outlet port (1020) for conducting blood to and from the blood chamber. An air port (1012) is provided in communication with the air chamber, to allow air passing through membrane (1006) to escape.

Modular home dialysis system

SAFETY DEVICE FOR A BLOOD TREATMENT DEVICE AND PROCEDURE FOR THE INCREASED SAFETY OF A BLOOD TREATMENT DEVICE

DEVICE AND PROCEDURE FOR THE PREPARATION OF A TREATMENT LIQUID BY FILTRATION

System and method for dialyzer evaluation

Flow path fault detection method for a respiratory assistance apparatus

A respiratory assistance apparatus is configured to provide a heated and humidified flow of gases and has a control system that is configured to detect a fault in the flow path. A flow path is provided for a gases stream through the apparatus from a gas inlet through a blower unit and humidification unit to a gases outlet. A flow rate sensor is provided in the flow path and is configured to sense the flow rate and generate an flow rate signal and/or a motor speed sensor is provided that is configured to sense the motor speed of the blower unit and generate an indicative motor speed signal.

Methods and apparatus for aerosolizing a substance

EXTRACORPOREAL BLOOD PURIFICATION DEVICE

The invention concerns an extracorporeal blood purification device comprising a blood extracting duct (1), a blood return duct (3), blood filtering means (4), a duct evacuating ultrafiltrate (5) coming from the filtering means (4), a substituting solution source (S), two connecting ducts (7',7") between said source (S) and said blood extracting duct (1) and said blood return duct (3). The device further comprises means for measuring (10-13) at least one of the parameters affected by the filtering means (4) resistance to the liquid flow, means for determining at least a threshold value of said parameter, means for comparing said parameter with said threshold value, exchange control means for calculating the distribution between the respective flow rates through said connecting ducts (7',7"), capable of reducing the difference between said value of said measured parameter and said threshold value.

INTERMITTENT SIGNAL ACTUATED NEBULIZER SYNCHRONIZED WITH EXHALATION

... 2099665 9212750 PCTABS00014 A self-contained, high capacity nebulizer (10), having automatic mixing (28) and temperature control (34) features is provided. The nebulizer is designed for use in conjunction with mechanical respirators (70), ventilators, or breathing machines, and for this purpose will use electrical signals (8) generated by or received from the respirator (70) to automatically control and synchronize the nebulizing and mixing functions such that nebulization occurs only during the exhalation phase of the respiratory function to load the gas passageway of the respirator (70) to the patient with a standardized dose of medicinal aerosol. Upon commencement of the inhalation phase, the aerosol in the gas passageway is ventilated into the lungs of the patient to which it is attached.

Modular Home Dialysis System

DEVICE AND METHOD FOR PREPARING A TREATMENT LIQUID BY FILTRATION

A device for treatment of blood by extracorporeal circulation comprises a dialysis liquid circuit having a supply tube (9a, 9b) on which is arranged a filter (21) having a first chamber and a second chamber (22, 23) which are separated by a filtering membrane (24), the supply tube having a first portion (9a) connecting a dialysis liquid source (10) to an inlet of the first chamber (22), and a second portion (9b) having an end connected to an outlet of the second chamber (23) of the filter (21) and another end which can be connected to an inlet of a compartment (3) of an exchanger (1) with semipermeable membrane (4). A feedback tube (25) connects the inlet of the first chamber (22) of the filter (21) to the outlet of the first chamber (22). A flushing pump (26) is arranged on the feedback tube (25) for circulating liquid in the first chamber (22) of the filter (21) and causing cleaning of the membrane (24) by tangential flushing.

MODULAR HOME DIALYSIS SYSTEM

A machine for conducting dialysis of body fluids of a patient. The machine includes integral water preparation and treatment, dialysate preparation, and extracorporeal circuit modules, under computer control from a patient interface and control module. A water pretreatment module with a temperature-controlled mixing valve, an integral water filtration and conditioning unit and a pressure relief with integral water sample removal port supplies water to the machine. The dialysate preparation module includes a substantially non-compliant tank with attached batch chemical bottles and automatic chemical addition and dispersion subsystems. The machine incorporates novel automatic process control techniques to verify the status and integrity of the critical system components, ultrafiltration control, and temperature, pressure and conductivity conditions prior to dialysis.

DEVICE FOR REGULATING THE AMOUNT OF AIR IN PARTICULAR IN A GAS MASK.

Device for injecting sterile apyrogen liquid and method for inspecting main filter

Procédé de régulation de la quantité d'air délivrée à un masque à gaz et masque à gaz mettant en oeuvre ce procédé

Procédé de régulation de la quantité d'air délivrée à la partie faciale d'un masque à gaz ou de tout autre appareil respiratoire couvrant la face, le masque à gaz comprenant un filtre, un ventilateur augmentant le débit de l'alimentation en air au travers dudit filtre, un moteur 1 entraînant le ventilateur ainsi qu'un circuit électronique commandant le fonctionnement et comportant des commutateurs de commande 6A, 3B, caractérisé en ce que le moteur du ventilateur 1 avec les pales du ventilateur et l'enceinte les entourant constituent un détecteur de façon que le courant I circulant au travers du moteur 1 et la tension U1 de fonctionnement du moteur détectent les variations de l'écoulement de l'air, l'énergie délivrée du moteur du ventilateur 1 étant ensuite régulée sur la base dudit courant et de ladite tension.

MEDICAL/SURGICAL WASTE COLLECTION AND DISPOSAL SYSTEM INCLUDING A ROVER AND A DOCKER, THE DOCKER HAVING FEATURES FACILITATING THE ALIGNMENT OF THE DOCKER WITH THE ROVER

DIALYSIS MACHINE AND METHOD FOR DETERMINING THE FURRING IN A DIALYSIS MACHINE

The invention relates to a dialysis machine with at least one filter for filtration of the dialysis fluid and means for determining the furring in the dialysis machine, wherein the means for determining the furring of the dialysis machine has one or more sensors, the sensor(s) being designed and arranged such that the ion concentration or a parameter representative of the ion concentration or the change therein of the dialysis fluid, a solution for defurring or any other measured solution can be measured either downstream or upstream and downstream of the at least one filter and the means for determining the furring of the dialysis machine further comprises an analysis or computing unit, designed to determine the furring of the dialysis machine based on the ion concentration or parameter value recorded. The invention further relates to a method for determining the furring of a dialysis machine.

METHOD AND DEVICE FOR INJECTING A STERILE APYROGEN LIQUID OBTAINED BY FILTRATION

Sterile apyrogen liquid injecting device obtained by filtration and method of verifying the integrity of the filter used for this purpose. The sterile liquid injecting device comprises at least one main filter (15) with first and second compartments (16, 17) separated by a porous membrane (18), the first compartment (16) having an inlet connectable to a source (11) of liquid to be filtered and the second compartment (17) having an outlet connected to an injecting tube (22); means (23) for circulating the liquid through the main filter (15) and into the injecting tube (22), and means (25, 26, 27) for verifying the main filter's integrity comprising: a secondary filter (24) capable of retaining bacteria and pyrogen elements disposed on the injecting tube (22) and means (25, 26, 27) for detecting clogging of the secondary filter (24) during injection of the liquid. Application especially where the liquid injected is dialysis liquid sterilized in line for injection as a substitution liquid.

BIOLOGICAL INFORMATION AND BLOOD TREATING DEVICE INFORMATION CONTROL SYSTEM, BIOLOGICAL INFORMATION AND BLOOD TREATING DEVICE INFORMATION CONTROL DEVICE, AND BIOLOGICAL INFORMATION AND BLOOD TREATING DEVICE INFORMATION CONTROL METHOD

A patient information server device (10) is provided that automatically collects and stores, along with time information, biological information measured by a biological measuring device or a bed-side monitor device (1) for a patient, biological information and device information respectively measured by blood purifying devices (2, 3) for treating blood taken out from the patient, and blood information measured by a circulating blood amount measuring device (4) for measuring the blood information on circulating blood taken out from the patient. A client device (20) displays or records patient information including information stored in the patient information server device (10) concurrently and time-dependently, whereby biological information about a human body such as a patient and device information on a blood treating device or the like are recognized in real time when a blood treating is conducted.

Dual in-series large and small droplet filters

A surgical evacuation system having dual in-series large and small droplet filters is provided. The surgical evacuation system comprises a pump, a motor operably coupled to the pump, and a flow path fluidically coupled to the pump. the flow path comprises a first fluid filter configured to extract a large droplet in a fluid moving through the flow path and a second fluid filter configured to extract a small droplet in the fluid moving through the flow path. the first fluid filter is coupled in series with the second fluid filter. The first fluid filter is positioned upstream of the second fluid filter. An outlet port of the second fluid filter is coupled to an inlet port of a non-fluid filter.

Humidifier for a respiratory therapy device

A humidifier for humidification of air to be delivered to a patient's airways may include a humidification chamber, a reservoir and a water delivery mechanism. The humidification chamber may include a water retention feature such as a wick, a heating element for heating the humidification chamber, and an air flow baffle configured to promote humidification. The humidifier may be further configured to execute one or more algorithms, for example to determine a condition of the humidifier and/or to mitigate any detected faults. In some forms, the humidifier may also comprise algorithms for controlling one or more components of the humidifier.

Vorrichtung zur selektiven Kühlung physiologischen Gewebes

Vorrichtung zur extrakorporalen Regulierung der Temperatur einer Körperflüssigkeit mit: einem Wärmetauscher (10), welcher von der zu kühlenden Körperflüssigkeit und von einem Kühlmedium durchströmbar ist, wobei das Kühlmedium und die Körperflüssigkeit hermetisch voneinander getrennt und über zumindest ein Wärmetauscherrohr (18, 20, 22, 24, 26) in thermischem Kontakt miteinander stehen, zumindest einem Temperatursensor (42, 44) zur Erfassung der Temperatur der den Wärmetauscher (10) durchströmenden Körperflüssigkeit und mit einer Steuereinheit (60), welche dazu ausgebildet ist, in Abhängigkeit einer ermittelten Temperatur der Körperflüssigkeit eine Durchflussmenge des Kühlmediums durch den Wärmetauscher (10) zu regeln, wobei im Wärmetauscher (10) mehrere Wärmetauscherohre (18, 20, 22, 24, 26) vorgesehen sind, deren Durchfluss mittels der Steuereinheit (60) jeweils separat und unabhängig voneinander regelbar ist.

Fehlerdiagnose in Cpap und Nippv Beatmungsgeräten

Modular home dialysis system

Exhaust blockage detection for negative pressure wound treatment apparatuses

HEMODIALYSESYSTEM

ARRANGEMENT FOR REMOVING OF ONE OR MORE PARLIAMENTARY GROUPS FROM TOTAL BLOOD, PLASMA OR OTHER AEHNLICHEN BODY FLUIDS.

DIALYSIS APPARATUS

Extracorporeal blood purification device

A medium (6) is intended for circulating blood in the outlet. The device further comprises a measuring medium to calculate the pressures of a transfilter and transmembrane, and the flow of ultrafiltrate through an outlet (5). The measuring medium comprises parameters influenced by resistance of filtration medium. The calculating unit (9) comprises pre-dilution control medium to determine a threshold value of the parameter. The control medium is connected by a functioning medium to compare the parameter to the threshold value for maintaining/reducing the resistance of the filtration medium. The pre-dilution control medium to make the circulation of the substitution solution in the measuring duct. The calculating unit: comprises an exchange control medium that are connected to the ultrafiltration circulation medium to adapt the value of ultrafiltrate flow; extending the duration of the treatment until the degree of purification is obtained; undergoes a cleaning of filtration medium while controlling the circulation of substitution solution in the measuring duct. The exchange control medium is programmed to calculate flow of pre-dilution control medium in the calculating unit. The extraction duct (1) comprises a flow sensor that is connected to the calculating unit having a control unit for increasing the speed of blood extraction pump until increase the flow of extracted blood that does not increase linearly with the pump.

INTERMITTENT SIGNAL ACTUATED NEBULIZER SYNCHRONIZED WITH EXHALATION

APPARATUS FOR PLASMA SEPARATION/EXCHANGE BY DOUBLE FILTRATION

... : The invention provides an apparatus for plasma separation/exchange by double-step-membrane filtration, namely separation of blood into plasma and a corpuscular fraction and separation of the plasma into high-molecular-weight substances (e.g. gamma-globulin) and low-molecular-weight substances (e.g. albumin), discarding the undesired fraction and adding a substitute fluid. The apparatus contains a plasma reservoir in the extracorporeal circuit, the reservoir being provided with a level sensor for monitoring the plasma level in the reservoir and for keeping it within certain predetermined limits. The apparatus is effective e.g. in the treatment of blood of patients with peripheral circulatory insufficiency due to arteriosclerosis and of patients with rheumatoid arthritis, which is an autoimmune disease.

DEVICE FOR DETECTING A DANGEROUS RESISTANCE TO FLOW IN A FLOW OF GAS THROUGH A FILTER EQUIPPED, IN CASE, WITH AN HME

A device for detecting and showing a dangerous resistance to flow in a gaseous fluid through a filter. The device is characterized: - by the fact that it comprises a body; - by the fact that the body is divided into two chambers by an elastic membrane; a preferably calibrated hole connects the first chamber with the patient end; the second chamber being in communication, instead, with the ventilator end, by means of a pressure-relief channel, which traverses the filter; and - by the fact that it is provided with elements for detecting and showing a dangerous resistance to flow in a flow of gas that traverses the filter; the detection elements comprising the membrane.

ARTIFICIAL KIDNEY HYDRAULIC SYSTEM INCLUDING A DIALYSIS LIQUID FILTRATION APPARATUS

Un circuit hydraulique pour artificiel est pourvue en cici, le circuit pour un rein artificiel comportant une canalisation d'alimentation en liquide de dialyse ayant une première portion ayant une extremité connectée à une source de liquide de dialyse et une seconde portion ayant une extrémité connectable à un hémodialyseur ou à un circuit pour circulation extracorporelle de sang. Le circuit également comportant un ultrafiltre ayant une première et une seconde chambre séparées par une membrane apte à retenir des éléments microbiens et pyrogènes, la première portion de la canalisation d'alimentation ayant son autre extrémité connectée à une entrée de la première chambre et l a seconde portion de la canalisation d'alimentation ayant son autre extrémité connecté e à une sortie de la seconde chambre. Le circuit également comportant des moyens pour détermin er la pression transmembranaire dans l'ultrafiltre, des moyens dérivation pour relier directement la première et la seconde portions de ...

Hemodialysis device

A hemodialysis device (1) is provided with a dialysate filter, and is provided with a testing passage for discharging fluid from one of a space on the inflow side of the dialysate filter and a space on the discharge side of the dialysate filter, an opening means (42) for opening the other space to the atmosphere, a pressure detection means for detecting a pressure variation in the one space, and an assessing means (54) for assessing the quality of the dialysate filter on the basis of the pressure variation. A control means causes the dialysate to be discharged from the one space by a dialysate pump (52) via the testing passage, and causes the other space to be opened to the atmosphere by the opening means (42), and when the one space is depressurized to a first negative pressure, the one space is depressurized to a second negative pressure by a draining means. The assessing means assesses that the dialysate filter is good when the pressure detection means does not detect a pressure variation ...

The liquid injection device in an extracorporeal blood circuit

La présente invention est relative à un dispositif d'injection dans un circuit extracorporel de sang d'un liquide stérilisé par passage au travers d'un ultrafiltre. Pour vérifier l'intégrité de cet ultrafiltre, l'invention propose de placer un microfiltre en aval de l'ultrafiltre et de mesurer la différence de pression existant de part et d'autre du microfiltre. Une augmentation de la différence de pression sera significative d'un colmatage du microfiltre et donc d'un défaut d'intégrité de l'ultrafiltre. L'invention trouve une application particulière dans le cas où le liquide injecté est du liquide de dialyse stérilisé en ligne pour être injecté en tant que liquide de substitution.

DETERMINING THE STATE OF FOULING OF A FILTER IN A MEDICAL VENTILATOR

L'invention concerne un procédé de détermination du niveau d'encrassement d'un filtre (16) agencé dans un appareil d'assistance respiratoire comprenant une turbine (5) à moteur électrique reliée fluidiquement, côté amont, à un conduit d'amenée d'air (4) comprenant un orifice d'entrée d'air communiquant fluidiquement avec l'atmosphère ambiant et, côté aval, à une ligne d'alimentation en gaz (8), un capteur de pression (15) agencé de manière à mesurer une pression gazeuse dans le conduit d'amenée d'air (4), un capteur de débit (6) agencé de manière à mesurer un débit gazeux dans la ligne d'alimentation en gaz (8), des moyens de pilotage (9) coopérant avec la turbine (5), le capteur de pression (15) et le capteur de débit (6), et un filtre (16) agencé sur le trajet du gaz. Les moyens de pilotage (9) commandent la turbine (5) pour délivrer un débit de gaz donné (Q), le capteur de pression (15) mesure la pression s'exerçant dans le conduit d'amenée d'air (4) pendant la délivrance du débit de ...

FILTER HAS DEVICE HAS MEMORY

L'invention concerne un filtre. Elle se rapporte à un filtre qui comprend une cartouche (10, 11) de filtration, et un dispositif à mémoire (12) contenant une chaîne d'informations lisibles électroniquement, par exemple une mémoire morte. De préférence, le dispositif à mémoire (12) est associé à un dispositif de saisie qui lui transmet une chaîne d'informations lisibles électroniquement. Par exemple, le dispositif de saisie est un dispositif de contrôle qui transmet des informations relatives à un paramètre variable contrôlé par le dispositif de contrôle. De préférence, le dispositif à mémoire (12) comporte une connexion de sortie destinée à être connectée à un lecteur destiné à lire la chaîne d'informations dans le dispositif à mémoire. Application à la filtration des fluides biologiques. The invention relates to a filter. It relates to a filter which comprises a filter cartridge (10, 11), and a memory device (12) containing a chain of electronically readable information, for example a read only memory. Preferably, the memory device (12) is associated with an input device which transmits to it a chain of electronically readable information. For example, the input device is a control device which transmits information relating to a variable parameter controlled by the control device. Preferably, the memory device (12) comprises an output connection intended to be connected to a reader intended to read the information string in the memory device. Application to the filtration of biological fluids.

DIALYSIS MACHINE AND METHOD OF CONTROLLING IT

A dialysis machine comprises: means for calculating (60) a filtration factor (FF) as a function of the ultrafiltration rate (UFR) and of a plasma flow rate (Q¿p); first comparison means (65) for comparing the filtration factor (FF) with a limit value of admissibility; and signaling means (70) for generating a signal (A) indicating the result of the comparison.

DISPOSABLE CARTRIDGE FOR A BLOOD PERFUSION SYSTEM

A disposable cartridge for use in extracorporeal blood perfusions systems that have a control unit for controlling the flow of fluids. The cartridge has a housing defining a plurality of internal passageways that connect to a cardiopulmonary circuit, a cardioplegia circuit and a suction circuit. The cartridge may be fitted with one or more of a bubble trap, a filter, and a valve.

DIALYSIS MACHINE AND METHOD FOR DETERMINING THE FURRING IN A DIALYSIS MACHINE

The invention relates to a dialysis machine with at least one filter for filtration of the dialysis fluid and means for determining the furring in the dialysis machine, wherein the means for determining the furring of the dialysis machine has one or more sensors, the sensor(s) being designed and arranged such that the ion concentration or a parameter representative of the ion concentration or the change therein of the dialysis fluid, a solution for defurring or any other measured solution can be measured either downstream or upstream and downstream of the at least one filter and the means for determining the furring of the dialysis machine further comprises an analysis or computing unit, designed to determine the furring of the dialysis machine based on the ion concentration or parameter value recorded. The invention further relates to a method for determining the furring of a dialysis machine.

Batch dialysate chemical vessel with machine-readable indicator

A vessel storing a batch of chemicals for delivery into a dialysate preparation tank includes a machine readable indicator, permitting automatic identification of the contents of the vessel prior to operating the vessel and introduction of chemicals into a tank where the dialysate solution is mixed. Various types of machine-readable indicators may be used, such as, for example, "touch" memory buttons, bar codes, or magnetic strips. Suitable reading devices for the machine-readable indicators are provided for reading the contents of the bottle.

WASTE CONTROL APPARATUS

Liquid jet surgical cutting apparatus (10) and a method of use thereof are described, the apparatus comprising: a fluid reservoir (12) containing a supply of cutting fluid (14); a pump (16) to supply the cutting fluid to a liquid jet surgical cutting instrument; a liquid jet surgical cutting instrument (20); a drain conduit (22) to receive and drain waste cutting fluid (14) and entrained debris wherein the drain conduit is operably connected to a waste canister (24), the waste canister having vacuum means (26) operably connected thereto to apply a vacuum to an interior of the waste canister and to said drain conduit.

Method of rinsing back blood to hemodialysis patient

A method is described herein for automatically rinsing blood back to a patient. The method comprises the steps of pumping dialysate (or, alternatively, saline solution) through a dialyzer into an extracorporeal circuit, and pumping blood in the extracorporeal circuit out the arterial and venous lines back to the patient. Optical sensors monitor the concentration of blood in the arterial and venous lines as the blood is being pumped from the extracorporeal circuit back to the patient. The return flow of blood is ceased when the concentration of blood in the arterial and venous lines drops to a predetermined threshold level, thereby preventing excess fluids from being returned to the patient.

Device for producing ultra-pure water

Method and device for controlling the proper replacement of a used filter in an extracorporal blood treatment device

ケース内にＨＭＥ（熱湿度交換器）を装備したフィルタを通るガスの流れにおける、流れに対する危険な抵抗を検出するための装置

Vorrichtung und Verfahren zur Vorbereitung einer Behandlungsflüssigkeit durch Filtrierung

VORRICHTUNG ZUR EXTRAKORPORALEN BLUTREINIGUNG

Filter with electronically readable label

The filter includes a filter cartridge and a memory device containing electronically readable information. This may be information regarding the static condition of the filter such as its rating and size or may be dynamic information received from a sensor such as the ambient pressure and temperature or the degree of blockage of the filter. The information is readable by an external reader via, for example, either a transmitter or an output connection.

Modular home dialysis system

Disclosed is an apparatus for establishing fluid connection between an extracorporeal circuit and a source of disinfection fluids, with the extracorporeal circuit comprising a dialyzer, an arterial blood line and a venous blood line; ```a disinfection line for carrying disinfection fluids from the source of disinfection fluids to the extracorporeal circuit; ```a disinfection manifold comprising a first and a second port, the first port for receiving the arterial line, and the second port for receiving the venous line; ```a return line establishing a fluid connection with the disinfection manifold and carrying disinfection fluids from the extracorporeal circuit; ```whereby disinfection fluids passed into the disinfection manifold by the disinfection line are routed through the arterial and venous blood lines and out of the extracorporeal circuit via the return line. Also disclosed is an apparatus for directing disinfection fluids to and from an extracorporeal circuit, the extracorporeal ...

DEVICE AND PROCEDURE FOR THE DETERMINATION OF THE AGING FLUID FILTERS

FLOW PATH FAULT DETECTION METHOD FOR A RESPIRATORY ASSISTANCE APPARATUS

A respiratory assistance apparatus is configured to provide a heated and humidified glow of gases and has a control system that is configured to detect a fault in the flow path. A 5 flow path is provided for a gases stream through the apparatus from a gas inlet through a blower unit and humidification unit to a gases outlet. A flow rate sensor is provided in the flow path and is configured to sense the flow rate and generate an flow rate signal and/or a motor speed sensor is provided that is configured to sense the motor speed of the blower unit and generate an indicative motor speed signal. -37- cov ...

Portable personal respirator and use thereof

A respirator system includes a respirator with an air filter, a flow generator with a sensorless DC motor, a mask, a processor, a sensor, an electric power source, and a wireless transceiver. The respirator filters air, increase the pressure of the air, delivers the air to the mask at a pressure above ambient, gathers data with the sensor about operation of the respirator, and transmits the data. An intermediate electronic device is separate and remote from the respirator, and is configured to receive the transmitted data process the data, and re-transmit the data. A computer receives the data, processes the data and generates at least one report regarding the respirator or a user of the respirator.

Vaporizer apparatus for compressed tablet and loose fill plant source materials

There is disclosed a vaporizer apparatus for a compressed tablet formed from a plant source material containing medicinal ingredients of therapeutic efficacy. In an embodiment, the apparatus includes: a holder for a compressed tablet; a microprocessor; a controlled air flow; and a controlled heat source; wherein the microprocessor is adapted to control the air flow and the heat source to vaporize the compressed tablet received in the compressed tablet holder at a desired rate. In another embodiment, the vaporizer apparatus includes a carousel for receiving a disc cartridge containing packaged compressed tablets. In still another embodiment, the vaporizer apparatus is adapted to recognize a type of compressed tablet placed into the holder, and to control an air flow and a heat source based on selected therapeutic compounds desired to be released from the recognized type of compressed tablet.

FLOW PATH FAULT DETECTION METHOD FOR A RESPIRATORY ASSISTANCE APPARATUS

A respiratory assistance apparatus is configured to provide a heated and humidified glow of gases and has a control system that is configured to detect a fault in the flow path. A flow path is provided for a gases stream through the apparatus from a gas inlet through a 5 blower unit and humidification unit to a gases outlet. A flow rate sensor is provided in the flow path and is configured to sense the flow rate and generate an flow rate signal and/or a motor speed sensor is provided that is configured to sense the motor speed of the blower unit and generate an indicative motor speed signal. -37- ...

MODULAR HOME DIALYSIS SYSTEM

A machine for conducting dialysis of body fluids of a patient. The machine includes integral water preparation and treatment, dialysate preparation, and extracorporeal circuit modules, under computer control from a patient interface and control module. A water pretreatment module with a temperature-controlled mixing valve, an integral water filtration and conditioning unit and a pressure relief with integral water sample removal port supplies water to the machine. The dialysate preparation module includes a substantially non-compliant tank with attached batch chemical bottles and automatic chemical addition and dispersion subsystems. The machine incorporates novel automatic process control techniques to verify the status and integrity of the critical system components, ultrafiltration control, and temperature, pressure and conductivity conditions prior to dialysis.

LIQUID INJECTION DEVICE IN AN EXTRACORPOREAL BLOOD CIRCUIT.

Hemodialysis machine with automatic priming by induced pressure pulses

A hemodialysis machine is described that has an extracorporeal circuit that is primed automatically prior to connection of the patient to the machine. The priming is accomplished by filling the extracorporeal circuit with a priming fluid, such as a saline or dialysate solution or blood. The blood pump and clamps in the arterial and venous lines are operated by a control system in a fashion to create multiple brief pressure pulses in the priming fluid. The pressure pulses shear air bubbles present on the blood side of the dialyzer membrane off the membrane. The blood pump is then operated to clear the bubbles from the dialyzer compartment where they are removed from the priming fluid by conventional bubble trap apparatus.

Blood Treatment Device Priming Devices, Methods, and Systems

Simple-to-use systems, methods, and devices for priming replacement blood treatment devices, for swapping the blood treatment devices out, for replacing swapped-out blood treatment devices, and other related operations are described. In embodiments, a blood treatment device can be primed while a therapy is still running. When the replacement blood treatment device is needed, the therapy can be stopped momentarily (less than a minute) for the rapid and safe swap of the blood treatment device. Blood loss can be minimized. The down time from therapy can be minimized. 1. A blood treatment device priming set , comprising:a first circuit part having a first tubular channel element with one or more bag spikes or luer connectors at one end and a blood treatment device blood port connector at a second opposite end;a second circuit part having a second tubular channel element with a drain bag connector at one end and a blood treatment device blood port connector at a second opposite end;the blood treatment device connectors being shaped and sized for connection to venous and arterial ports of a predefined blood treatment device;a drain bag with a drain connector shaped and sized to fit said drain bag connector;the first and second tubular channel elements each having, therealong, a pair of connectors that mate to form a continuous flow path along a respective one of the first and second tubular channel elements,one of each pair being shaped and sized to fit connectors of a predefined blood circuit portion of a blood treatment fluid circuit used for extracorporeal blood treatment;a vent connection component that attaches to a port open to a non-blood compartment of the blood treatment device.2. The set of claim 1 , wherein each pair of connectors includes self-sealing valves that automatically close a fluid path upon disconnection and open the fluid path upon connection.3. The set of claim 2 , wherein each pair of connectors is connected to a removable interconnect member that ...

Disposable cartridge for a blood perfusion system

A disposable cartridge for use in extracorporeal blood perfusions systems that have a control unit for controlling the flow of fluids. The cartridge has a housing defining a plurality of internal passageways that connect to a cardiopulmonary circuit, a cardioplegia circuit and a suction circuit. The cartridge may be fitted with one or more of a bubble trap, a filter, and a valve.

STATIC DOCKER INCLUDING FEATURES FACILITATING THE ALIGNMENT OF PORTABLE ROVER WITH STATIC DOCKER, AND MEDICAL/SURGICAL WASTE COLLECTION AND DISPOSAL SYSTEM INCLUDING PORTABLE ROVER

PROBLEM TO BE SOLVED: To provide a waste collection and disposal system for use in health care facilities. SOLUTION: The system 100 includes a mobile waste collection unit 102 for moving between use areas in the health care facility to collect waste material generated during medical procedures including body fluids, body tissues, saline, etc. The waste collection unit includes stacked upper and lower waste containers for receiving the waste material. During use, the upper waste container can be emptied into the lower waste container for temporary storage. In addition, independently controlled vacuum levels can be provided in the waste containers during complex procedures. Once a user desires to empty the waste collection unit, the waste collection unit is wheeled to a docking station 104. At the docking station, the waste material is off-loaded to a waste drain and the waste collection unit is cleaned and rinsed for further use. COPYRIGHT: (C)2012,JPO&INPIT ...

VORRICHTUNG ZUR EXTRAKORPORALEN BLUTREINIGUNG

HEMODIALYSESYSTEM

Exhaust blockage detection for negative pressure wound treatment apparatuses

A negative pressure wound therapy apparatus can include a source of negative pressure configured to aspirate fluid from a wound covered by a wound dressing, a first pressure sensor configured to measure pressure downstream of the source of negative pressure, and a controller configured to, in response to a determination that pressure measured by the first pressure sensor satisfies a threshold indicative of a first blockage downstream of the source of negative pressure, provide an indication of the first blockage. The system can further include a second pressure sensor configured to measure pressure upstream of the source of negative pressure and the controller can be further configured to, in response to a determination that pressure measured by the second pressure sensor satisfies a threshold indicative of a second blockage upstream of the source of negative pressure, provide an indication of the second blockage.

Modular home dialysis system

Modular home dialysis system

Modular home dialysis system

Positive pressure ventilation device

Modular home dialysis system

DEVICE AND PROCEDURE FOR THE INJECTION OF A BY FILTRATION PYROGENFREI AND STERILE MANUFACTURED LIQUID

DEVICE FOR EXTRAKORPORALEN BLOOD CLEANING

SYSTEM AND METHOD FOR DIALYZER EVALUATION

Embodiments of the disclosure provide a method for evaluating dialyzers used in different medical applications (e.g., hemodialysis). Red blood cell volume lost in a dialyzer is monitored by obtaining blood flowrate measurements and hematocrit measurements at input ports and output ports of the dialyzer. The flowrate and hematocrit measurements are used to determine an accumulation of red cell blood volume in the dialyzer. The measurements may be obtained in a lab environment with an in-vitro blood source or may be obtained in a clinical setting with an in-vivo blood source from a patient.

FLOW PATH FAULT DETECTION METHOD FOR A RESPIRATORY ASSISTANCE APPARATUS

A respiratory assistance apparatus is configured to provide a heated and humidified flow of gases and has a control system that is configured to detect a fault in the flow path. A flow path is provided for a gases stream through the apparatus from a gas inlet through a blower unit and humidification unit to a gases outlet. A flow rate sensor is provided in the flow path and is configured to sense the flow rate and generate an flow rate signal and/or a motor speed sensor is provided that is configured to sense the motor speed of the blower unit and generate an indicative motor speed signal.

MODULAR HOME DIALYSIS SYSTEM

A machine for conducting dialysis of body fluids of a patient. The machine includes integral water preparation and treatment, dialysate preparation, and extracorporeal circuit modules, under computer control from a patient interface and control module. A water pretreatment module with a temperature-controlled mixing valve, an integral water filtration and conditioning unit and a pressure relief with integral water sample removal port supplies water to the machine. The dialysate preparation module includes a substantially non-compliant tank with attached batch chemical bottles and automatic chemical addition and dispersion subsystems. The machine incorporates novel automatic process control techniques to verify the status and integrity of the critical system components, ultrafiltration control, and temperature, pressure and conductivity conditions prior to dialysis.

Device for extracorporeal blood treatment

DEVICE AND A METHOD FOR PREPARING A LIQUID OF TREATMENT BY FILTRATION

Un dispositif de traitement de sang par circulation extracorporelle comprend un circuit de liquide de dialyse ayant une canalisation d'alimentation (9a, 9b) sur laquelle est disposé un filtre (21) ayant une première et une seconde chambres (22, 23) séparées par une membrane de filtration (24), la canalisation d'alimentation ayant une première portion (9a) reliant une source de liquide de dialyse (10) à une entrée de la première chambre (22), et une seconde portion (9b) ayant une extrémité connectée à une sortie de la seconde chambre (23) du filtre (21) et une autre extrémité connectable à une entrée d'un compartiment (3) d'un échangeur (1) à membrane semi-perméable (4). Une canalisation de bouclage (25) relie l'entrée de la première chambre (22) du filtre (21) à la sortie de la première chambre (22). Une pompe de balayage (26) est disposée sur la canalisation de bouclage (25) pour faire circuler du liquide dans la première chambre (22) du filtre (21) et provoquer un nettoyage de la membrane (24) par balayage tangentiel. A device for treating blood by extracorporeal circulation comprises a dialysis fluid circuit having a supply line (9a, 9b) on which is disposed a filter (21) having first and second chambers (22, 23) separated by a filtration membrane (24), the supply line having a first portion (9a) connecting a source of dialysis fluid (10) to an inlet of the first chamber (22), and a second portion (9b) having a end connected to an outlet of the second chamber (23) of the filter (21) and another end connectable to an inlet of a compartment (3) of an exchanger (1) with a semi-permeable membrane (4). A looping pipe (25) connects the inlet of the first chamber (22) of the filter (21) to the outlet of the first chamber (22). A scavenging pump (26) is arranged on the looping pipe (25) to circulate liquid in the first chamber (22) of the filter (21) and to cause cleaning of the membrane (24) by tangential scavenging.

A DIALYSID MACHINE AND A METHOD DETERMINING THE CALCIFICATION OF A DIALYSIS MACHINE

The invention relates to a dialysis machine with at least one filter for filtration of the dialysis fluid and means for determining the furring in the dialysis machine, wherein the means for determining the furring of the dialysis machine has one or more sensors, the sensor(s) being designed and arranged such that the ion concentration or a parameter representative of the ion concentration or the change therein of the dialysis fluid, a solution for defurring or any other measured solution can be measured either downstream or upstream and downstream of the at least one filter and the means for determining the furring of the dialysis machine further comprises an analysis or computing unit, designed to determine the furring of the dialysis machine based on the ion concentration or parameter value recorded. The invention further relates to a method for determining the furring of a dialysis machine. COPYRIGHT KIPO & WIPO 2010 ...

SECONDARY FILTER CLEANING METHOD IN BLOOD PLASMA FILTRATION METHOD

In a blood plasma filtration method including a primary filtering for separating blood into corpuscule and plasma, and a secondary filtering for cleaning the separated plasma by removing harmful macromolecular substances therefrom, the cleaning of the secondary filter is done by introducing a cleaning liquid the quantity of which corresponds to 5-50 % of the priming volume of the filter into an inner chamber or an outer chamber or both thereof in the filter every time a filtration pressure reaches 70-100 % of the resistible pressure of the filter. This enables the time required to carry out the filtration of blood plasma to be reduced to about 60-70 % of that in a conventional method of this kind, the patient binding hour to be reduced, and the quantity of a cleaning liquid or blood plasma discharged wastefully to the outside of the system to be reduced.

Apparatus for opening a vessel

An apparatus is described for automatically opening and dispensing the contents of a vessel, for example, a vessel containing dialysate chemicals for dispersion into a dialysate preparation tank. The apparatus comprises a housing having an open interior region, with the vessel mounted above the housing, and a spike reciprocable within the interior of the housing between upper and lower positions. The spike pierces the vessel when the spike is moved to the upper position. The spike has an upper spike element that pierces the bottle and an integral spike body concentric with the housing permitting passage of dialysate chemicals therethrough after the spike has pierced the vessel. A drive means is proved for moving the spike relative to the housing between the upper and lower positions, so as to control the operation of the spike and the automatic release of the contents of the vessel.

Surgical evacuation system with a communication circuit for communication between a filter and a smoke evacuation device

A surgical evacuation system for communication between a smoke evacuation device and a filter device through a communication circuit is provided. The surgical evacuation system can include a smoke evacuation device, which can include a pump and a motor operably coupled to the pump. The surgical evacuation system also can include a communication circuit and a filter device in communication with the smoke evacuation device through the communication circuit. The filter device can include a plurality of filter components including filter elements and filter sensors. The filter elements can include a fluid filter, particulate filter, and/or a charcoal filter. The communication circuit is configured to authenticate the filter components, verify a remaining life of at least one of the filter components, update parameters output from the filter components, and record errors output from the filter components.

Fault diagnosis in CPAP and NIPPV devices

A ventilation device for non-invasive positive pressure ventilation (NIPPV) or continuous positive airway pressure (CPAP) treatment of a patient has a gas flow generator, a gas delivery circuit optionally including a humidifier, a controller and sensors monitoring values of operational parameters of the device. The device further includes one or more relationships stored in data storage of the controller relating combinations of parameter values as being indicative of fault conditions of the device operation, the sensors and/or the fault detection process.

ПОРТАТИВНЫЙ ИНДИВИДУАЛЬНЫЙ РЕСПИРАТОР И ЕГО ИСПОЛЬЗОВАНИЕ

FIELD: medicine.SUBSTANCE: respiratory system contains a respirator with an air filter, a flow generator with a sensor-less DC engine, a mask, a processor, a sensor, a power source and a wireless transceiver. The respirator filters the air, increases the air pressure, supplies air to the mask under pressure higher than the ambient pressure, collects data using the sensor about the operation of the respirator and transmits data. An intermediate electronic device is separate from the respirator, and is located at a distance from it, and is made with the possibility to receive transmitted data, process data and generate at least one report concerning the respirator or a user of the respirator.EFFECT: obtaining portable individual respirator.45 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 757 182 C1 (51) МПК A62B 18/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК A61M 16/0069 (2020.05); A61M 16/024 (2020.05); A62B 18/02 (2020.05) (21)(22) Заявка: 2020114788, 13.09.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 11.10.2021 (73) Патентообладатель(и): КЛИНСПЭЙС АйПи ПТИ ЛТД (AU) 28.09.2017 US 62/564,313 (56) Список документов, цитированных в отчете о поиске: US 20170246486 A1, 31.08.2017. WO 2017098329 A1, 15.06.2017. WO 2017136336 A1, 10.08.2017. EP 2612688 A1, 10.07.2013. EP 518538 A3, 21.04.1993. US 20140311490 A1, 23.10.2014. US 20130312750 A1, 28.11.2013. US 6237593 B1, 29.05.2001. RU 2513773 C1, 20.04.2014. (45) Опубликовано: 11.10.2021 Бюл. № 29 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.04.2020 (86) Заявка PCT: 2 7 5 7 1 8 2 R U (87) Публикация заявки PCT: WO 2019/060947 (04.04.2019) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ПОРТАТИВНЫЙ ИНДИВИДУАЛЬНЫЙ РЕСПИРАТОР И ЕГО ИСПОЛЬЗОВАНИЕ (57) Реферат: Респираторная система содержит респиратор работе респиратора и передает данные. ...

Vorrichtung zur Herstellung von Dialysekonzentrat

Vorrichtung zur Herstellung von Dialysekonzentrat aus pulver- oder granulatförmigen Bestandteilen des Dialysekonzentrats oder einer Aufschlämmung der Bestandteile, gekennzeichnet durch einen Aufnahmebehälter (2) für die Bestandteile des Dialysekonzentrats, einen Lagerbehälter (1) zur Aufnahme des Dialysekonzentrats und ein separates Mischgerät (3), das ein Leitungssystem mit einer Pumpe (15), wenigstens einem Filter (14), einer Druck- oder Flussüberwachungseinrichtung, die das Zusetzen des wenigstens einen Filters erkennen kann, und Ventilen und eine Steuer- und Bedieneinheit (29) enthält, wobei der Aufnahmebehälter (2) und der Lagerbehälter (1) durch Anschlussleitungen (4, 5; 17, 19) mit dem Leitungssystem des Mischgeräts (3) verbunden sind und zusammen mit dem Leitungssystem des Mischgerätes (3) einen Zirkulationskreislauf bilden.

Modular home dialysis system

A method is described for priming a dialyzer placed in an extracorporeal circuit of a nemodialysis machine in situ. The method comprises the steps of substantially filling the extracorporeal circuit and the blood side of the dialyzer with fluid (such as dialysate, RO water, saline, etc.), and inducing pressure pulses in the fluid. The pressure pulses cause air bubbles from the blood side of the dialyzer to be sheared off the dialyzer membrane. The air bubbles are then conducted from the dialyzer and removed from the extracorporeal circuit. Backfiltering of fluid across the dialyzer from the dialysate circuit into the extracorporeal circuit is performed in synchrony with the pressure pulses to assist in the shearing off of air bubbles from the blood side of the dialyser membrane.

Modular home dialysis system

Modular home dialysis system

Exhaust blockage detection for negative pressure wound treatment apparatuses

A negative pressure wound therapy apparatus can include a source of negative pressure configured to aspirate fluid from a wound covered by a wound dressing, a first pressure sensor configured to measure pressure downstream of the source of negative pressure, and a controller configured to, in response to a determination that pressure measured by the first pressure sensor satisfies a threshold indicative of a first blockage downstream of the source of negative pressure, provide an indication of the first blockage. The system can further include a second pressure sensor configured to measure pressure upstream of the source of negative pressure and the controller can be further configured to, in response to a determination that pressure measured by the second pressure sensor satisfies a threshold indicative of a second blockage upstream of the source of negative pressure, provide an indication of the second blockage.

Extracorporeal blood purification device

Blood perfusion system

Modular home dialysis system

MODULAR HOME DIALYSIS SYSTEM

A machine for conducting dialysis of body fluids of a patient. The machine includes integral water preparation and treatment, dialysate preparation, and extracorporeal circuit modules, under computer control from a patient interface and control module. A water pretreatment module with a temperature-controlled mixing valve, an integral water filtration and conditioning unit and a pressure relief with integral water sample removal port supplies water to the machine. The dialysate preparation module includes a substantially non-compliant tank with attached batch chemical bottles and automatic chemical addition and dispersion subsystems. The machine incorporates novel automatic process control techniques to verify the status and integrity of the critical system components, ultrafiltration control, and temperature, pressure and conductivity conditions prior to dialysis.

VAPORIZER APPARATUS FOR COMPRESSED TABLET AND LOOSE FILL PLANT SOURCE MATERIALS

There is disclosed a vaporizer apparatus for a compressed tablet formed from a plant source material containing medicinal ingredients of therapeutic efficacy. In an embodiment, the apparatus includes: a holder for a compressed tablet; a microprocessor; a controlled air flow; and a controlled heat source; wherein the microprocessor is adapted to control the air flow and the heat source to vaporize the compressed tablet received in the compressed tablet holder at a desired rate. In another embodiment, the vaporizer apparatus includes a carousel for receiving a disc cartridge containing packaged compressed tablets. In still another embodiment, the vaporizer apparatus is adapted to recognize a type of compressed tablet placed into the holder, and to control an air flow and a heat source based on selected therapeutic compounds desired to be released from the recognized type of compressed tablet.

MEDICAL SURGICAL WASTE COLLECTION AND DISPOSAL SYSTEM INCLUDING A ROVER AND A DOCKER, THE DOCKER HAVING FEATURES FACILITATING THE ALIGNMENT OF THE DOCKER WITH THE ROVER

A waste collection and disposal system (100) for use in health care facilities is provided. The system (100) includes a mobile waste collection unit (102) for moving between use areas in the health care facility to collect waste material generated during medical procedures including body fluids, body tissues, saline, etc. The waste collection unit (102) includes stacked upper (200) and lower (202) waste containers for receiving the waste material. During use, the upper waste container (200) can be emptied into the lower waste container (202) for temporary storage. In addition, independently controlled vacuum levels can be provided in the waste containers (200, 202) during complex procedures. Once a user desires to empty the waste collection unit (102), the waste collection unit (102) is wheeled to a docking station (104). At the docking station (104), the waste material is off-loaded to a waste drain (D) and the waste collection unit (102) is cleaned and rinsed for further use.

APPARATUS FOR PLASMA SEPARATION/EXCHANGE BY DOUBLE FILTRATION

METHOD FOR REGULATING THE AMOUNT OF AIR DELIVERED TO A GAS MASK AND GAS MASK USING SAID METHOD

Kidney machine with filtering device of the liquid of dialysis

L'invention a pour objet un rein artificiel dans lequel le circuit de liquide de dialyse comporte un ultrafiltre (10) destiné à débarrasser le liquide de dialyse des microorganismes et éventuellement des éléments pyrogènes qu'il pourrait contenir. Afin de vérifier en permanence l'intégrité et l'efficacité de la membrane, on dispose en amont et en aval de l'ultrafiltre un capteur de pression (23, 24) dont les informations sont transmises à une unité de contrôle (27) qui détermine alors la pression transmembranaire et la compare à des valeurs de seuil prédéterminées. Dans le cas où la pression transmembranaire atteint une des valeurs de seuil, l'unité 27 commande l'émission d'un signal visuel et/ou accoustique et éventuellement la mise en œuvre d'un circuit de dérivation de l'ultrafiltre par le liquide de dialyse. The subject of the invention is an artificial kidney in which the dialysis liquid circuit comprises an ultrafilter (10) intended to rid the dialysis liquid of microorganisms and possibly of the pyrogenic elements that it could contain. In order to constantly check the integrity and efficiency of the membrane, a pressure sensor (23, 24) is placed upstream and downstream of the ultrafilter, the information from which is transmitted to a control unit (27) which then determines the transmembrane pressure and compares it to predetermined threshold values. In the event that the transmembrane pressure reaches one of the threshold values, the unit 27 controls the emission of a visual and/or acoustic signal and possibly the implementation of a bypass circuit of the ultrafilter by the dialysis fluid.

WASTE CONTROL APPARATUS

Liquid jet surgical cutting apparatus (10) and a method of use thereof are described, the apparatus comprising: a fluid reservoir (12) containing a supply of cutting fluid (14); a pump (16) to supply the cutting fluid to a liquid jet surgical cutting instrument; a liquid jet surgical cutting instrument (20); a drain conduit (22) to receive and drain waste cutting fluid (14) and entrained debris wherein the drain conduit is operably connected to a waste canister (24), the waste canister having vacuum means (26) operably connected thereto to apply a vacuum to an interior of the waste canister and to said drain conduit.

EXTRACORPOREAL RENAL REPLACEMENT MODELING SYSTEM

A system, program product and method continuously optimize an ultrafiltration rate during an extracorporeal renal replacement process by modeling physiological and actual rate data. The system (70) maps the sensed, physiological data to a mathematical model (94) to assess the data in terms of the ultrafiltration rate. The model (94) provides parameters used to predict where the treatment is headed based on current conditions. The system (70) processes the parameters in terms of preset criteria to generate the optimized ultrafiltration rate. Where the system (70) is networked, communication of the data may be accomplished using remote and online communication techniques.

Dialysis Systems and Methods

This invention relates to dialysis systems and methods. In some implementations, a method includes applying vacuum pressure to a device of a dialysis system, and then determining, based on a detected fluid level or measured pressure, whether the device is functioning properly.

Blood perfusion system

An extracorporeal blood perfusion system includes a disposable assembly and a control unit having a control interface region. The interface region includes pump assemblies for selective pumping of venous blood, arterial blood, cardioplegia solution, suctioned blood and blood removed from the left ventricle. Valve assemblies control the flow of fluids through the assembly and to/from the patient and sensors monitor various fluid parameters including temperature and pressure within the various fluid circuits. The user interface is a functional screen interface for effecting the operation of the control unit and valve assemblies. The screen interface may be a touch screen having objects that corresponds to the component interface region. The display may be selectively controlled to provide graphic depictions of disposable assembly components with corresponding narrative instructions.

Waste Collection Unit With A Control System For Regulating Levels Of Vacuums Being Drawn In Waste Containers

A waste collection unit for collecting waste material. First and second waste containers are supported on a portable cart. A control panel is configured to receive one or more inputs of selectively set vacuum levels in the first and/or second waste containers. A control system controls operation of vacuum regulators based on the input(s) to regulate levels of vacuums being drawn in each of the waste containers. Pressure sensors in communication with the control system may be positioned to monitor pressure in the waste containers. A back up port support on the portable cart may be provided to receive a vacuum line for coupling a vacuum manifold to a remote vacuum source not located on the portable cart. Container lamps may be coupled to the first and/or second waste containers and configured to illuminate the waste material within the waste containers to be viewed through transparent windows. 1. A waste collection unit for collecting waste material , said waste collection unit comprising:a portable cart;a first waste container supported on said portable cart and configured to collect the waste material during the medical procedure;a second waste container supported on said portable cart and configured to collect the waste material during the medical procedure;a vacuum pump supported on said portable cart and in fluid communication with said first and second waste containers to draw the waste material into said waste containers;a first vacuum regulator between said first waste container and said vacuum pump with said first vacuum regulator configured to regulate a vacuum level in said first waste container;a second vacuum regulator between said second waste container and said vacuum pump with said second vacuum regulator configured to regulate a vacuum level in said second waste container;a control panel configured to receive a first input of a selectively set vacuum level in said first waste container and a second input of a selectively set vacuum level in said ...

BLOOD TREATMENT DEVICE WITH AUTOMATIC REDUCTION OF A SUBSTITUTION-SOLUTION FLOW RATE

The disclosure relates to a blood treatment device for use in blood treatment therapies, comprising: an extracorporeal blood circuit, a dialyzer and a dialysis fluid circuit, wherein the extracorporeal blood circuit and the dialysis fluid circuit are separated from each other via a membrane provided in the dialyzer, via which blood can be filtered; at least one substitution solution pump, which is configured to supply a substitution solution to the extracorporeal blood circuit before and/or after the dialyzer; an effluent pressure sensor, which is configured to measure a pressure in the dialysis fluid circuit after the dialyzer, and a control unit, which is configured to automatically reduce a flow rate of the at least one substitution solution pump when an effluent pressure measured by the effluent pressure sensor drops during an ongoing blood treatment therapy. 1. A blood treatment device for use in blood treatment therapies , the blood treatment device comprising:an extracorporeal blood circuit, a dialyzer and a dialysis fluid circuit, the extracorporeal blood circuit and the dialysis fluid circuit separated from each other via a membrane provided in the dialyzer, via which blood can be filtered;at least one substitution solution pump, which is configured to supply a substitution solution to the extracorporeal blood circuit before and/or after the dialyzer;an effluent pressure sensor configured to measure pressure in the dialysis fluid circuit after the dialyzer; anda control unit configured to automatically reduce a flow rate of the at least one substitution solution pump when an effluent pressure measured by the effluent pressure sensor drops during an ongoing blood treatment therapy.2. The blood treatment device according to claim 1 , wherein the control unit is configured to determine that clogging of the dialyzer or blood clotting is present solely on the basis of the effluent pressure measured by the effluent pressure sensor dropping during the ongoing ...

EXHAUST BLOCKAGE DETECTION FOR NEGATIVE PRESSURE WOUND TREATMENT APPARATUSES

A negative pressure wound therapy apparatus can include a source of negative pressure configured to aspirate fluid from a wound covered by a wound dressing, a first pressure sensor configured to measure pressure downstream of the source of negative pressure, and a controller configured to, in response to a determination that pressure measured by the first pressure sensor satisfies a threshold indicative of a first blockage downstream of the source of negative pressure, provide an indication of the first blockage. The system can further include a second pressure sensor configured to measure pressure upstream of the source of negative pressure and the controller can be further configured to, in response to a determination that pressure measured by the second pressure sensor satisfies a threshold indicative of a second blockage upstream of the source of negative pressure, provide an indication of the second blockage. 1. A negative pressure wound therapy system comprising:a wound dressing configured to be placed over a wound, the wound dressing configured to absorb fluid;a source of negative pressure disposed on or within the wound dressing, the source of negative pressure configured to aspirate fluid from the wound;a vent configured to allow gas aspirated by the source of negative pressure to flow outside the system;a pressure sensor at least partially disposed on or within the wound dressing proximal to the vent; and 'in response to a determination that pressure measured by the pressure sensor satisfies a threshold indicative of blockage in the vent, provide an indication that the vent is blocked.', 'a controller disposed on or within the wound dressing, the controller configured to2. The system of claim 1 , further comprising a chamber at least partially disposed on or within the wound dressing claim 1 , the chamber housing the pressure sensor and comprising the vent through a wall of the chamber.3. The system of claim 1 , wherein the controller is further configured ...

Dialysis Systems and Methods

This invention relates to dialysis systems and methods. In some implementations, a method includes applying vacuum pressure to a device of a dialysis system, and then determining, based on a detected fluid level or measured pressure, whether the device is functioning properly.

Systems and methods for oxygenator performance evaluation

Systems and methods for monitoring oxygenator performance in extracorporeal circuit systems or the like. More particularly, the disclosure relates to systems and methods including a controller programmed to determine oxygenator apparatus flow impedance as a function of an inlet pressure measurement, an outlet pressure measurement and a blood flow rate measurement. The systems and methods may include a communication device that receives signals from the controller to communicate information regarding oxygenator apparatus performance.

Dialysis Systems and Methods

This invention relates to dialysis systems and methods. In some implementations, a method includes applying vacuum pressure to a device of a dialysis system, and then determining, based on a detected fluid level or measured pressure, whether the device is functioning properly. 1. A method , comprising:applying vacuum pressure to an air release device of a dialysis system, the air release device comprising a vent;after applying the vacuum pressure to the air release device, detecting a fluid level within the air release device; anddetermining, based on the fluid level within the air release device, whether the air release device is functioning properly.2. The method of claim 1 , wherein determining whether the air release device is functioning properly comprises determining whether the vent of the air release device is functioning properly.3. The method of claim 1 , wherein the fluid level within the air release device is detected by a level detector of the dialysis system claim 1 , and the level detector is positioned adjacent the air release device.4. The method of claim 3 , wherein the level detector comprises a transmitter configured to emit ultrasonic signals and a receiver adapted to receive ultrasonic signals.5. The method of claim 3 , wherein the level detector is connected to a control unit of the dialysis system in a manner such that signals related to the detected fluid level can be transmitted to the control unit.6. The method of claim 1 , wherein applying vacuum pressure to the air release device comprises closing off lines upstream and downstream of the air release device and activating a pump to draw fluid out of the air release device.7. The method of claim 6 , wherein closing off the line upstream of the air release device comprises turning off a pump configured to circulate fluid through the air release device claim 6 , and closing off the line downstream of the air release device comprises clamping the line downstream of the air release device.8. ...

SYSTEMS AND METHODS FOR OXYGENATOR PERFORMANCE EVALUATION

Systems and methods for monitoring oxygenator performance in extracorporeal circuit systems or the like. More particularly, the disclosure relates to systems and methods including a controller programmed to determine oxygenator apparatus flow impedance as a function of an inlet pressure measurement, an outlet pressure measurement and a blood flow rate measurement. The systems and methods may include a communication device that receives signals from the controller to communicate information regarding oxygenator apparatus performance. 1. A method for maintaining oxygenating performance of an extracorporeal circuit including an oxygenator apparatus , the method comprising:determining a first oxygenator apparatus flow impedance at a first point in time;determining a second oxygenator apparatus flow impedance at a second point in time, the second point in time being after the first point in time; andcomparing the first oxygenator apparatus flow impedance and the second oxygenator apparatus flow impedance;generating oxygenator apparatus flow impedance trending information based on a multiplicity of sequentially determined oxygenator apparatus flow impedances; anddetermine an end-of-life criteria for the oxygenator apparatus based upon the oxygenator apparatus flow impedance trending information.2. The method of claim 1 , further comprising providing a communication to a clinician indicative of the oxygenator apparatus flow impedance.3. The method of claim 2 , wherein the communication is a visual communication.4. The method of claim 2 , wherein the communication is an audio communication.5. The method of claim 2 , wherein the communication is provided by a communication device that is carried by a housing of the oxygenator apparatus.6. The method of claim 1 , wherein the oxygenator apparatus flow impedance is determined as:{'br': None, '(inlet pressure measurement−outlet pressure measurement)/blood flow rate measurement.'}7. The method of claim 1 , wherein the oxygenator ...

Blood Treatment Device Priming Devices, Methods, and Systems

Simple-to-use systems, methods, and devices for priming replacement blood treatment devices, for swapping the blood treatment devices out, for replacing swapped-out blood treatment devices, and other related operations are described. In embodiments, a blood treatment device can be primed while a therapy is still running. When the replacement blood treatment device is needed, the therapy can be stopped momentarily (less than a minute) for the rapid and safe swap of the blood treatment device. Blood loss can be minimized. The down time from therapy can be minimized. 1. A method for performing a blood treatment , comprising:flowing blood from a patient through an extracorporeal blood treatment system that uses a replaceable blood treatment device;detecting a condition indicating a need to replace the replaceable blood treatment device;priming a blood treatment device to provide a primed blood treatment device; andreplacing the replaceable blood treatment device with the primed blood treatment device.2. The method of claim 1 , wherein the detecting includes detecting a change in a pressure of a blood circuit.3. The method of claim 2 , wherein the detecting includes detecting a pressure property indicating a rise in pressure drop through the replaceable blood treatment device.4. The method of claim 1 , wherein the flowing includes performing a hemodialysis claim 1 , hemofiltration claim 1 , apheresis claim 1 , or a type of renal replacement therapy treatment.5. The method of claim 1 , wherein the priming includes creating a siphon flow in a priming circuit and automatically halting the siphoning flow prior to an entry of air or other gas or gasses into a fluid circuit of the extracorporeal blood treatment system.6. The method of claim 5 , wherein the automatically halting includes a passive starvation of a flow from a priming source.7. The method of claim 5 , wherein the automatically halting includes a complete filling of a fluid-receiving device until it can hold no ...

SYSTEM AND METHOD FOR DIALYZER EVALUATION

Embodiments of the disclosure provide a method for evaluating dialyzers used in different medical applications (e.g., hemodialysis). Red blood cell volume lost in a dialyzer is monitored by obtaining blood flowrate measurements and hematocrit measurements at input ports and output ports of the dialyzer. The flowrate and hematocrit measurements are used to determine an accumulation of red cell blood volume in the dialyzer. The measurements may be obtained in a lab environment with an in-vitro blood source or may be obtained in a clinical setting with an in-vivo blood source from a patient. 1. A dialyzer analysis system , comprising:a first sensor connected to a first portion of a blood flow path disposed on an input side of a dialyzer, wherein the first sensor is configured to obtain a measurement corresponding to hematocrit of blood in the first portion of the blood flow path;a second sensor connected to a second portion of the blood flow path disposed on an output side of the dialyzer, wherein the second sensor is configured to obtain a measurement corresponding to hematocrit of blood in the second portion of the blood flow path; anda controller configured to determine a red blood cell volume loss corresponding to the dialyzer based on the measurements from the first and second sensors.2. The system according to claim 1 , wherein the controller is further configured to:determine a flowrate of the blood in the first portion of the blood flow path; anddetermine a flowrate of the blood in the second portion of the blood flow path;wherein determining the red blood cell volume loss corresponding to the dialyzer is further based on the determined flowrate of the blood in the first portion of the blood flow path and the determined flowrate of the blood in the second portion of the blood flow path.3. The system according to claim 2 , wherein the controller is further configured to:determine an input red blood cell volume flow corresponding to blood flowing into the ...

MEDICAL/SURGICAL WASTE COLLECTION PORTABLE ROVER CAPABLE OF ZERO SETTING A FLOAT USED TO MEASURE THE VOLUME OF LIQUID IN A WASTE CONTAINER

A medical/surgical waste collection rover includes a first waste container disposed on a portable cart and receiving waste under the influence of a vacuum. A fluid measuring system includes a float element disposed within the first waste container, and a controller causing liquid in a reservoir disposed on the cart to prefill the first waste container and subject the float element to an initial lifting to a zero point level. The fluid measuring system determines a volume of contents within the first waste container based on a position of the float element relative to the zero point level. The fluid measuring system may include a sensor rod extending through the first waste container and a second waste container disposed on the cart and separated from the first waste container by a transfer valve. Methods of estimating the volume of liquid and/or medical/surgical waste within the waste container are also provided. 1. A medical/surgical waste collection rover comprising:a portable cart;a first waste container disposed on said portable cart and comprising a connecting member adapted to be coupled to a suction line through which medical/surgical waste is drawn into said first waste container under the influence of a vacuum;a reservoir disposed on said portable cart and in fluid communication with said first waste container with said reservoir adapted to store a liquid to be dispensed into said first waste container;a fluid measuring system comprising a float element disposed within said first waste container and configured to float within said first waste container; anda controller disposed on said portable cart and configured to cause the liquid in said reservoir to prefill said first waste container and subject said float element to an initial lifting from a bottom of said first waste container to a zero point level with said fluid measuring system configured to determine a volume of the liquid and/or the medical/surgical waste within said first waste container based ...

Blood Treatment Device Priming Devices, Methods, and Systems

Simple-to-use systems, methods, and devices for priming replacement blood treatment devices, for swapping the blood treatment devices out, for replacing swapped-out blood treatment devices, and other related operations are described. In embodiments, a blood treatment device can be primed while a therapy is still running. When the replacement blood treatment device is needed, the therapy can be stopped momentarily (less than a minute) for the rapid and safe swap of the blood treatment device. Blood loss can be minimized. The down time from therapy can be minimized. 1. A method of preparing a blood circuit element , comprising:connecting a priming fluid container of priming fluid to a blood treatment device blood inlet and connecting a drain container to a blood treatment device blood outlet;the connecting includes selecting a drain container with an internal volume that is less than a volume of priming fluid in the priming fluid container plus an internal volume of the blood treatment device and connections between the blood treatment device and the priming fluid and container and drain container;elevating the priming fluid container above the drain container to cause a flow of priming fluid through the blood treatment device into the drain container to flush and fill the blood treatment device with priming fluid; andhalting a flow of priming fluid by permitting the flow to continue until the drain container is full, thereby causing the flow to stop by supporting a fluid column between the fluid in the priming fluid container and a bottom of the drain container.2. The method of claim 1 , further comprising disconnecting the blood treatment device and connecting it to a blood treatment system.3. The method of claim 2 , wherein the disconnecting includes sealing fluid lines connected to the blood treatment device.4. The method of claim 3 , wherein the sealing includes disconnecting self-sealing connectors of a fluid circuit connected to the blood treatment device.5. A ...

PORTABLE PERSONAL RESPIRATOR AND USE THEREOF

A respirator system includes a respirator with an air filter, a flow generator with a sensorless DC motor, a mask, a processor, a sensor, an electric power source, and a wireless transceiver. The respirator filters air, increase the pressure of the air, delivers the air to the mask at a pressure above ambient, gathers data with the sensor about operation of the respirator, and transmits the data. An intermediate electronic device is separate and remote from the respirator, and is configured to receive the transmitted data process the data, and re-transmit the data. A computer receives the data, processes the data and generates at least one report regarding the respirator or a user of the respirator. 1. A respirator system comprisinga respirator including an air filter, a flow generator with a sensorless DC motor, a mask, a processor, a sensor, an electric power source, and a first wireless transceiver, wherein the respirator is configured to draw ambient air through the air filter, increase the pressure of the air, deliver the air to the mask at a pressure above ambient, gather data with the sensor about operation of the respirator, and transmit the data with the first wireless transceiver;an intermediate electronic device comprising a second processor, a memory, a second wireless transceiver and a first network transceiver, wherein the intermediate electronic device is separate and remote from the respirator, and the intermediate electronic device is configured to receive the data transmitted by the first wireless transceiver, process the data, and re-transmit the data with the first network transceiver; anda computer with a second network transceiver, a third processor, and a second memory storing instructions that, when executed, cause the computer to receive the data, process the data and generate at least one report regarding the respirator or a user of the respirator.24-. (canceled)5. The respirator system according to claim 1 , wherein the sensor is a ...

Systems And Methods For Indicating Lifetime Of An NO2-to-NO Reactor Cartridge Used To Deliver NO For Inhalation Therapy To A Patient

The principles and embodiments of the present invention relate to methods and systems for safely providing NO to a recipient for inhalation therapy. There are many potential safety issues that may arise from using a reactor cartridge that converts NO 2 to NO, including exhaustion of consumable reactants of the cartridge reactor. Accordingly, various embodiments of the present invention provide systems and methods of determining the remaining useful life of a NO2-to-NO reactor cartridge and/or a break-through of NO 2 , and providing an indication of the remaining useful life and/or break-through.

SYSTEM AND METHOD FOR DIALYZER EVALUATION

Embodiments of the disclosure provide a method for evaluating dialyzers used in different medical applications (e.g., hemodialysis). Red blood cell volume lost in a dialyzer is monitored by obtaining blood flowrate measurements and hematocrit measurements at input ports and output ports of the dialyzer. The flowrate and hematocrit measurements are used to determine an accumulation of red cell blood volume in the dialyzer. The measurements may be obtained in a lab environment with an in-vitro blood source or may be obtained in a clinical setting with an in-vivo blood source from a patient. 1. A system , comprising:a first sensor connected to a first portion of a blood flow path disposed on an input side of a dialyzer, wherein the first sensor is configured to obtain measurements relating to a characteristic of blood in the first portion of the blood flow path;a second sensor connected to a second portion of the blood flow path disposed on an output side of the dialyzer, wherein the second sensor is configured to obtain measurements relating to a characteristic of blood in the second portion of the blood flow path; anda controller configured to determine a red blood cell volume loss corresponding to an amount of red blood cells remaining in the dialyzer based on the measurements from the first and second sensors.2. The system according to claim 1 , wherein the measurements relating to the characteristic of the blood in the first portion of the blood flow path are hemoglobin measurements claim 1 , and the measurements relating to the characteristic of the blood in the second portion of the blood flow path are hemoglobin measurements.3. The system according to claim 1 , wherein a flowrate of the blood in the first portion of the blood flow path is equal to a flowrate of the blood in the second portion of the blood flow path.4. The system according to claim 1 , wherein the controller is further configured to determine a flowrate of the blood in the first portion of the ...

Inhalation device

An inhalation device comprising a control unit (19) for controlling an air pump (16) via voltage and/or pulse width modulation so that it delivers an inhalation flow and/or an inhalation volume to a nebilizer (12) which is connected to the air pump according to a prescribed temporary course, is new. An independent claim is also included for a method for controlling the inhalation device.

Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof

A dialysis machine is disclosed that incorporates a water treatment module, a dialysate preparation module having a dialysate circuit, and an extracorporeal circuit including a dialyzer and arterial and venous blood lines that connect to the patient. The machine accomplishes on-line disinfection of all the fluid circuits of the machine, including the water treatment module, the dialysate preparation module and extracorporeal circuit, the arterial and venous lines, and the dialyzer, by circulating water heated to a high level disinfection temperature (e.g., 80 degrees C.) through the fluid passages of the machine for a sufficient time (such as an hour) to achieve high level disinfection. After the dialysis session is ended, the patient connects the arterial and venous lines to ports in a disinfection manifold that places the arterial and venous lines into fluid communication with the heated water. Thereafter, the machine is ready to disinfect the fluid circuits including the extracorporeal circuit. In a preferred embodiment, the ports of the disinfection manifold ports include recessed features that permit the hot water to circulate on the interior and exterior surfaces of the arterial and venous line connectors, thereby insuring that the surfaces of connectors themselves are also disinfected.

Method of priming dialyzer

A method is described for priming a dialyzer placed in an extracorporeal circuit of a hemodialysis machine in situ. The method comprises the steps of substantially filling the extracorporeal circuit and the blood side of the dialyzer with fluid (such as dialysate, RO water, saline, etc.), and inducing pressure pulses in the fluid. The pressure pulses cause air bubbles from the blood side of the dialyzer to be sheared off the dialyzer membrane. The air bubbles are then conducted from the dialyzer and removed from the extracorporeal circuit. Backfiltering of fluid across the dialyzer from the dialysate circuit into the extracorporeal circuit is performed in synchrony with the pressure pulses to assist in the shearing off of air bubbles from the blood side of the dialyzer membrane.

Batch dialysate chemical vessel with machine-readable indicator

A vessel storing a batch of chemicals for delivery into a dialysate preparation tank includes a machine readable indicator, permitting automatic identification of the contents of the vessel prior to operating the vessel and introduction of chemicals into a tank where the dialysate solution is mixed. Various types of machine-readable indicators may be used, such as, for example, "touch" memory buttons, bar codes, or magnetic strips. Suitable reading devices for the machine-readable indicators are provided for reading the contents of the bottle.

Apparatus for opening a vessel

An apparatus is described for automatically opening and dispensing the contents of a vessel, for example, a vessel containing dialysate chemicals for dispersion into a dialysate preparation tank. The apparatus comprises a housing having an open interior region, with the vessel mounted above the housing, and a spike reciprocable within the interior of the housing between upper and lower positions. The spike pierces the vessel when the spike is moved to the upper position. The spike has an upper spike element that pierces the bottle and an integral spike body concentric with the housing permitting passage of dialysate chemicals therethrough after the spike has pierced the vessel. A drive means is proved for moving the spike relative to the housing between the upper and lower positions, so as to control the operation of the spike and the automatic release of the contents of the vessel.

Dialysate separation method

A method for maintaining separation of old and new dialysate in a dialysate preparation tank is disclosed. The new dialysate is stored in the tank at a first temperature and withdrawn from the bottom of the tank. The dialysate is circulated through a dialyzer, and then returned to the tank at the top of the tank at a higher temperature in a substantially non-turbulent manner. The temperature differential between old and new dialysate and the manner of withdrawing and reintroducing the dialysate to the tank cooperate to form discrete zones of old and new dialysate without substantial mixing of the dialysate in the two zones.

Tubing connectors and parts for receiving the connectors

A connector for a tube and a port construction for sealingly and securely receiving the connector. The connector has a male luer comprising a locking hub and a cylindrical tubing port. The cylindrical tubing port receives the free end of the tube. A second piece is provided that envelops the male luer, comprising a elongate cylindrical housing having a interior surface. The male luer and the tube are snugly inserted within the interior surface of the second piece to form a unitary connector. The port receives the connector and has a housing having a first end and a second end and an open interior region defining first and second chambers and a housing axis. The first and second chambers are disposed within the first and second ends of the housing, respectively. A locking knob is movably mounted on the first end of the port apparatus and movable along the housing axis relative to the first end between first and second positions. The knob is rotatable in the second position relative to the first end into a locking engagement with the housing. When the connector is inserted into the first chamber of the port, the user rotates the knob to one side to securely retain the connector. The connector is pressed into sealing contact with an O-ring disposed in the interior region of the first chamber, thereby preventing any leakage around the connector and port. Various alternative tubing connectors are disclosed.

Method for detection of leakage of blood

A method for detecting the presence of blood in a dialysate solution is disclosed. The method provides for certain measurement of light intensity passing through solutions both before and during the dialysis session. Before dialysis is commenced, measurements are made of the intensity of light passing through a chamber containing a control dialysate solution that is free of blood. The light source is a first condition. The light source's state is changed from a first condition to a second condition different from the first condition. Next, a second measurement of the intensity of light is made. The first and second measurements are stored. During dialysis, the method continues with the following steps: conducting a third measurement of the intensity of light of the light source that passes though the chamber, the chamber containing dialysate solution that may contain the patient's blood, with the light source in the first condition. Next, the state of the light source is changed from the first condition to the second condition. A fourth measurement of the intensity of light passing through the solution is made. A suitable processor calculates an attenuation coefficient indicative of the presence of blood in the dialysate solution during dialysis from the first, second, third and fourth measurements.

Filter integrity test method for dialysis machines

A method is described for automatically testing the integrity of a dialyzer filter within a dialysis machine. The method consists of substantially removing fluids which may be present from the blood side of the dialyzer filter, pumping air into the blood side of the dialyzer filter with a blood pump to pressurize the dialyzer filter, and measuring the pressurization of the dialyzer filter. If the dialyzer filter pressurizes, the rate of decay of pressurization is measured. The pressurization and rate of decay are indicative of the integrity of the membrane of the dialyzer filter.

Disinfection of arterial and venous line connectors hemodialysis machine

A hemodialysis machine has ports of a disinfection manifold for receiving the arterial and venous line connectors terminating the arterial and venous lines. The ports are in fluid communication with a hydraulic system that circulates disinfection fluid through the machine including the extracorporeal circuit. The ports are constructed so as to provide a gap extending circumferentially around the arterial and venous line connectors. When the disinfection fluid circulates through the ports of the disinfection manifold, the fluid circulates around the external surfaces of the connectors as well as through the internal fluid passages, thereby insuring a complete disinfection of the connectors.

Dialysis machine with leakage detection

A dialysis machine is described which provides for the detection of leakage anywhere in the machine. The machine includes integral water treatment, dialysate preparation and extracorporeal circuit modules. The floor of the machine is constructed in a non-horizontal manner so as to provide a fluid catchment chamber with a fluid sensor. The extracorporeal circuit is mounted above the dialysate preparation module and the water treatment module. In one embodiment, a drain and drain tube allows fluid that leaks from the extracorporeal circuit module to be conducted to the floor of the machine, where the leak can be detected, along with a fluid leak in the water treatment or dialysate preparation modules. In another embodiment, a separate fluid leakage detector is placed at the base of the extracorporeal circuit module for detection of leakage in situ in the extracorporeal circuit, while the catchment chamber and sensor in the base of the machine detect leaks from the other modules.

Apparatus for supplying a batch of chemicals to a dialysate tank

A loading platform and chemical addition system are described for a machine that prepares a batch of dialysate. The loading platform is in fluid communication with a dialysate preparation tank, and receives chemical vessels that contain a batch quantity of dialysate chemicals. The chemicals are released from the vessels automatically and fall onto a shelf in the loading platform. Nozzles and spray equipment are provided for insuring the complete release of the chemicals from the vessels and their dispersion into the tank. Novel mixing techniques are implemented in the tank to insure complete mixing of the dialysate solution and prevention of settling of dialysate solution at the bottom of the tank.

Method of rinsing back blood to hemodialysis patient

A method is described herein for automatically rinsing blood back to a patient. The method comprises the steps of pumping dialysate (or, alternatively, saline solution) through a dialyzer into an extracorporeal circuit, and pumping blood in the extracorporeal circuit out the arterial and venous lines back to the patient. Optical sensors monitor the concentration of blood in the arterial and venous lines as the blood is being pumped from the extracorporeal circuit back to the patient. The return flow of blood is ceased when the concentration of blood in the arterial and venous lines drops to a predetermined threshold level, thereby preventing excess fluids from being returned to the patient.

Methods for ultrafiltration control in hemodialysis

Methods and apparatus for increasing the accuracy of ultrafiltration in a dialysis machine and decreasing the time required for dialysis. The machine inclused a substantially non-compliant tank for mixing and storing a batch of dialsyate. In a preferred form, the tank is a hollow vessel made from a lightweight and chemically inert material, such as polypropylene, reinforced on its exterior. The machine further includes an ultrafiltration pump for pumping fluid from an extracorporeal circuit to an ultrafiltration tank commensurate with the removal of water from the patient. The pump is calibrated with the volume of fluid in the tank. The reduction in the time to conduct hemodialysis of the patient is achieved by introducing the patient's blood into the arterial line and conducting the blood to the blood pump, measuring the pressure of the blood in the arterial line, increasing the pump rate of the blood pump, and in the event that the pressure measured in the arterial line drops below a predetermined threshold value, slowing the pump rate of the blood pump.

Debubblers

Apparatus for removing air bubbles from blood and from a dialysate solution are described herein. In one cassette-style embodiment of a blood debubbler, the debubbler includes front and rear covers, a fluid circuit board between the front and rear covers and defining a blood chamber between the fluid circuit board and the front cover and an air chamber between the fluid circuit board and the rear cover, and a microporous membrane separating the blood chamber from the air chamber. A support means is provided for supporting the microporous membrane from the air side of the membrane. A pressure sensor is provided within the front and rear covers for measuring the blood pressure in the blood chamber. The debubbler has a blood inlet port and a blood outlet port for conducting blood to and from the blood chamber. An air port is provided in communication with the air chamber, which allows for air passing through the microporous membrane to escape.

Method for determining sodium clearance of dialyzer

A method is described for determining the sodium clearance of a dialyzer. Dialysate containing sodium ions is circulated through the dialysate side of the dialyzer. Water is continuously circulated through the blood side of the dialyzer, the water being single passed through the blood side of the dialyzer. Measurements of the conductivity of the dialysate are made prior to the dialysate entering the dialyzer, and measurements of the conductivity of the dialysate are made after the dialysate has passed through the dialyzer. The clearance of the sodium ions by the dialyzer is calculated from the measurements of conductivity. The measurements of conductivity of the dialysate after passing through the dialyzer becomes substantially constant as the dialysate and water are circulated through the dialyzer. The sodium clearance corresponds to urea clearance of the dialyzer, since the two molecules are approximately the same size.

Combined hemofiltration and hemodialysis system

A hemodialysis system has a blood circuit and a hemofiltrate circuit interconnected at a hemo-filter and an air collection chamber. If an infusion of sterile fluid to the returning blood is needed during the dialysis treatment, filtrate in the filtrate circuit is pumped back into the blood circuit. This is also done to purge the blood circuit of blood and return it to the patient at the conclusion of a dialysis treatment. A blood pump in the blood circuit incorporates a flexible vessel in conjunction with pinch valves which self expand in a controlled manner from a compressed condition to fill with blood from the patient in a suction stroke controlled by the patient's blood delivery rate. Compression of the vessel by an external member then forces the blood through the rest of the blood circuit:

ARTIFICIAL KIDNEY WITH DIALYSIS LIQUID FILTERING DEVICE.

用于压制片和松散填充植物源材料的气化器设备

公开了一种用于由包含具有治疗效能的医药成分的植物源材料形成的压制片的气化器设备。在一实施例中，该设备包括：用于压制片的保持器；微处理器；受控空气流；以及受控热源；其中，微处理器适于控制空气流和热源，以便以期望的速率气化接收在压制片保持器中的压制片。在另一实施例中，气化器设备包括用于接收包含包装好的压制片的盘盒的圆盘传送器。在另外的又一实施例中，气化器设备适于识别放置在保持器中的压制片的类型，以及基于期望从所识别的类型的压制片释放的所选治疗化合物控制空气流和热源。

医疗/手术废物收集和处理系统

提供了一种用于健康护理设施的废物收集和处理系统(100)。系统(100)包括可动废物收集单元(102)，用于在健康护理设施中的使用区域之间移动，以收集在医疗过程中产生的废物材料，包括体液、人体组织、盐水等。废物收集单元(102)包括叠置的上部废物容器(200)和下部废物容器(202)，用于接收废物材料。在使用中，上部废物容器(200)可以排空到下部废物容器(202)中，以便临时储存。此外，在复杂的过程中，独立控制的真空级别可以提供于废物容器(200、202)中。如果使用者期望排空废物收集单元(102)，废物收集单元(102)被推到对接站(104)。在对接站(104)，废物材料被卸载到废物排放口(D)，并且废物收集单元(102)被清洁和漂洗以便将来使用。

Method and apparatus for checking normal replacement of a used filter in an extracorporeal blood handling device

Method and apparatus for aerosolizing substances

Patent JPS636021B2

Filters

The filter includes a filter cartridge and a memory device containing electronically readable information. This may be information regarding the static condition of the filter such as its rating and size or may be dynamic information received from a sensor such as the ambient pressure and temperature or the degree of blockage of the filter. The information is readable by an external reader via, for example, either a transmitter or an output connection.

Modular home dialysis system

Inhalation device

Inhalation device

Dispositivo de inhalación (10) con un equipo de control (19), un nebulizador (12) y una boquilla (11) asignada alnebulizador (12), un compresor (16) conectado con el equipo de control (19), en conexión de conductos con laboquilla (11), en el que el compresor (16) suministra un flujo de inhalación constante a través de la conexión deconductos a la boquilla (11), en el que el equipo de control (19) controla directamente el compresor mediante tensióno mediante modulación de duración de impulsos de modo que éste suministra el flujo de inhalación de acuerdo conun desarrollo temporal predeterminado a la boquilla (11) conectada con el compresor (16) sin válvula deestrangulación, en el que el equipo de control (19) está conectado con el nebulizador (12) mediante un sistemaelectrónico de nebulizador (24).

Inhalation device

An inhalation device may include a control and an air pump that is connected to the control. The air pump is controlled by the control such that the air pump supplies an inhalation flow, or inhalation volume or both according to a predetermined time course to a nebulizer connected to the air pump. The inhalation flow, inhalation volume or both is controlled by controlling the air pump, rather than by using valves.

Inhalation device

An inhalation device comprising a control and an air pump connected to the control, the air pump being controlled by the control such that it supplies an inhalation flow, or inhalation volume or both according to a predetermined time course to a nebulizer connected to the air pump.

Dialysis system and method

Dialysis systems and methods

This invention relates to dialysis systems and methods. In some implementations, a method includes applying vacuum pressure to a device of a dialysis system, and then determining, based on a detected fluid level or measured pressure, whether the device is functioning properly.

Method and device for injection of a sterile and antipyrogenic fluid

A device and method for injecting a sterile pyrogen free fluid uses a main filter having first and second compartments separated by a porous membrane. The first compartment has an inlet connected to a source of fluid to be filtered, and the second compartment has an outlet connected to an injection line. A pump is provided for circulating the fluid through the main filter and into the injection line. A secondary filter is provided downstream of the main filter and, in combination with pressure sensors, is used to determine if a rupture exists in the main filter.

Hemodialysis machine with automatic priming by induced pressure pulses

A hemodialysis machine is described that has an extracorporeal circuit that is primed automatically prior to connection of the patient to the machine. The priming is accomplished by filling the extracorporeal circuit with a priming fluid, such as a saline or dialysate solution or blood. The blood pump and clamps in the arterial and venous lines are operated by a control system in a fashion to create multiple brief pressure pulses in the priming fluid. The pressure pulses shear air bubbles present on the blood side of the dialyzer membrane off the membrane. The blood pump is then operated to clear the bubbles from the dialyzer compartment where they are removed from the priming fluid by conventional bubble trap apparatus.

Intermittent signal actuated nebulizer synchronized to operate in the exhalation phase, and its method of use

A self-contained, high capacity nebulizer, having automatic mixing and temperature control features is provided, and its method of use. The nebulizer is designed for use in conjunction with mechanical respirators, ventilators, or breathing machines, and for this purpose will use electrical signals generated by or received from the respirator to automatically control and synchronize the nebulizing and mixing functions such that nebulization occurs only during the exhalation phase of the respiratory function to load the gas passageway of the respirator to the patient with a standardized dose of medicinal aerosol. Upon commencement of the inhalation phase, the aerosol in the gas passageway is ventilated into the lungs of the patient to which it is attached.

Apparatus for removing air bubbles from the bloodstream of a modular home dialysis system

Die vorliegende Erfindung betrifft eine Dialysemaschine zur Durchführung einer Dialyse von Körperfluiden eines Patienten. Die Maschine ist modular aufgebaut und weist eine integrale Wasservorbehandlungs- und Aufbereitungseinheit, sowie ein Dialysatherstellungs- und extrakorporales Kreislaufmodul auf. Die Anordnung ist computergesteuert und wird über ein als Patientenschnittstelle und Steuereinheit dienendes Modul kontrolliert. Eine Wasservorbehandlungseinheit mit temperaturgesteuertem Mischventil und integrierter Wasserfiltrations- und Aufbereitungseinheit und einem Druckbegrenzer mit integralem Probeentnahmeausgang versorgt die Dialysemaschine mit Wasser. Das Dialysatherstellungsmodul weist einen im Wesentlichen unnachgiebigen Behälter mit zugehörigen Flaschen für Chemikalienchargen und Untereinheiten zur automatischen Chemikalienabgabe und Vermischung auf. Es werden neue automatische Prozesssteuerungsverfahren zur Statusüberprüfung und Funktionskontrolle der kritschen Systemkomponenten, der Ultrafiltrationsüberwachung und der Temperatur-, Druck- und Leitfähigkeitsbedingungen vor der Dialysebehandlung vorgeschlagen. The present invention relates to a dialysis machine for performing a dialysis of body fluids of a patient. The machine has a modular design and features an integral water pretreatment and conditioning unit as well as a dialysis production and extracorporeal circulation module. The arrangement is computer-controlled and controlled by a module serving as a patient interface and control unit. A water pre-treatment unit with temperature-controlled mixing valve and integrated water filtration and treatment unit and a pressure limiter with integral sampling outlet supplies the dialysis machine with water. The dialysis preparation module has a substantially rigid container with associated chemical batches and sub-units for automatic chemical delivery and mixing. New automatic process control methods are proposed for status checking and functional checking of ...

Artificial kidney hydraulic system including a dialysis liquid filtration apparatus

PRÉCIS L'invention a pour objet un circuit hydraulique pour rein artificiel dans lequel le circuit de liquide de dialyse comporte un ultrafiltre destiné à débarrasses le liquide de dialyse des microorganismes et éventuellement des éléments pyrogènes qu'il pourrait contenir. Afin de vérifier en permanence l'intégrité et l'efficacité de la membrane, on dispose en amont et en aval de l'ultrafiltre un capteur de pression dont les informations sont transmises à une unité de contrôle qui détermine alors la pression transmembranaire et la compare à des valeurs de seuil prédéterminées. Dans le cas où la pression transmembranaire atteint une des valeurs de seuil l'unité commande l'émission d'un signal visuel et/ou accoustique et éventuellement la mise en oeuvre d'un circuit de dérivation de l'ultrafiltre par le liquide de dialyse. DETAILED DESCRIPTION The subject of the invention is a hydraulic circuit for an artificial kidney in which the dialysis liquid circuit comprises an ultrafilter intended for ridding the dialysis liquid of microorganisms and possibly of the pyrogenic elements which it could contain. In order to constantly check the integrity and efficiency of the membrane, a pressure sensor is available upstream and downstream of the ultrafilter, the information of which is transmitted to a control unit which then determines the transmembrane pressure and compares it at predetermined threshold values. In the event that the transmembrane pressure reaches one of the threshold values, the unit controls the emission of a visual and / or acoustic signal and possibly the implementation of a circuit for bypassing the ultrafilter by the dialysis liquid. .

DEVICE AND METHOD FOR PREPARING A FILTRATION PROCESSING LIQUID

Method of regulating the quantity of air delivered to a gas mask and gas mask implementing this method

Method of regulating the quantity of air delivered to the facial part of a gas mask or of any other respiratory appliance covering the face, the gas mask comprising a filter, a fan increasing the flow rate of the air supply through the said filter, a motor 1 driving the fan as well as an electronic circuit controlling the operation and including control switches 6A, 3B, characterised in that the motor of the fan 1, with the vanes of the fan and the enclosure surrounding them constitute a detector in such a way that the current I flowing through the motor 1 and the voltage U1 of operation of the motor detect the variations in the outflow of the air, the energy delivered by the motor of the fan 1 being then regulated on the basis of the said current and of the said voltage.

Medical/surgical waste collection unit including waste containers of different storage volumes with inter-container transfer valve and independently controlled vacuum levels

A waste collection and disposal system (100) for use in health care facilities is provided. The system (100) includes a mobile waste collection unit (102) for moving between use areas in the health care facility to collect waste material generated during medical procedures including body fluids, body tissues, saline, etc. The waste collection unit (102) includes stacked upper (200) and lower (202) waste containers for receiving the waste material. During use, the upper waste container (200) can be emptied into the lower waste container (202) for temporary storage. In addition, independently controlled vacuum levels can be provided in the waste containers (200, 202) during complex procedures. Once a user desires to empty the waste collection unit (102), the waste collection unit (102) is wheeled to a docking station (104). At the docking station (104), the waste material is off-loaded to a waste drain (D) and the waste collection unit (102) is cleaned and rinsed for further use.

Filter unit for industrial, medical, and domestic purposes

The system to block or reduce emissions of toxic matter or organisms, from a filter layer or material, has a unit (4) which can be altered when the filter has reached a given saturation level. When the unit (4) has been displaced or distorted by a control, emissions are blocked.

Filtration device for automatically filtering biological materials, e.g. blood or blood products of animal or human origin comprises a receiver for receiving a container, a filtering unit, a control unit, and a weight measuring system

Filtration device comprises a first receiver (3) for receiving a first container (6), a filtering unit (5), a control unit (1), and a weight measuring system having a weight measuring cell (8) and a second receiver (4). An independent claim is also included for a filtering system containing the filtration device.

Modular home dialysis system

Ventilator for identifying the purity / turbidity of a filter

1, Beatmungsgerät umfassend: Ein Gehäuse mit einer Außenhüllenanordnung, die einen davon außen liegenden Raum definiert, einer Innenhüllenanordnung, die innerhalb der Außenhüllenanordnung angeordnet ist und einen Innenraum darin definiert, und einer ersten Einlasspassage, die mit dem Innen- und dem Außenraum in Verbindung steht, und ein erstes geräuschabsorbierendes Element, das innerhalb des Innenraumes angeordnet ist, und einen Kanal in Verbindung mit dem Innenraum definiert. 1, ventilator comprising: a housing having an outer shell assembly defining an outer space therefrom, an inner shell assembly disposed within the outer shell assembly and defining an interior therein, and a first inlet passage communicating with the interior and exterior , and a first noise absorbing member disposed within the interior and defining a channel in communication with the interior.

Modular type at-home artificial dialysis system

(57)【要約】 （修正有） 【課題】 在宅用血液透析システムにおいて透析器の信 頼性を自動的に試験する方法を提供する。 【解決手段】血液を患者から動脈側回路を介し前記透析 器までポンプ輸送すると共に静脈側回路を介し前記患者 まで戻し、前記透析器が血液側と透析液側とを有する膜 を備えており、前記方法は、前記膜の前記血液側に存在 しうる液体を実質的に除去するステップと、空気を前記 膜の前記血液側にポンプ輸送して前記透析器を加圧する ステップと、前記透析器の加圧度を測定するステップ と、前記透析器が加圧されれば、前記加圧の減衰速度を 測定するステップと、前記加圧度と減衰速度とで前記透 析器の膜の信頼性を示すステップと、を含含む方法。

Method of preparation of batch of physiologic solution

A batch of dialysate solution is made from a mixture of bicarbonate formulation and a liquid acid formulation. The liquid acid formulation is introduced into a dialysate tank and then removed from the tank and stored elsewhere, such as in an ultrafiltration tank, where it is diluted with a few litres of water. The dialysate tank is then filled with water and the bicarbonate formulation is added to the dialysate tank. The bicarbonate formulation is mixed and dissolved by circulation in a closed loop, with the liquid acid formulation kept separate. When the bicarbonate solution has been prepared, the liquid acid solution and the bicarbonate solution are mixed together and stored in the dialysate preparation tank. An additional quantity of dilution water is introduced into the dialysate system to bring the final conductivity down to the desired range. The excess dialysate solution can be used for several purposes, such as an endotoxin flush of the blood tubing set or a dialyzer clearance test.

Methods and apparatus for aerosolizing a substance

A device for aerosolizing a liquid includes a chamber (502) having a deformable wall (510) which expands and contracts as fluid is delivered and expelled from a fluid chamber (500). The chamber is partially bounded by a vibrating structure (506) having holes (504) therein for expelling the fluid. In another aspect, the invention provides exemplary aerosolization apparatus (300) and methods for aerosolizing a substance. A liquid is transferred from a first chamber (328) into a second chamber (330) having a substance that is in a dry state to form a solution. The solution i s then transferred from the second chamber and onto an atomization member (308). The atomization member is operated to aerosolize t he solution.

Fault diagnosis in CPAP and NIPPV devices

A ventilation device for non-invasive positive pressure ventilation (NIPPV) or continuous positive airway pressure (CPAP) treatment of a patient has a gas flow generator, a gas delivery circuit optionally including a humidifier, a controller and sensors monitoring values of operational parameters of the device. The device further includes one or more relationships stored in data storage of the controller relating combinations of parameter values as being indicative of fault conditions of the device operation, the sensors and/or the fault detection process.

Medical/surgical waste collection unit with plural containers, the unit able to draw material into the containers at different vacuum levels

보건 시설에서 사용될 수 있는 폐기물 수집 및 처리 시스템(100)이 제공된다. 상기 시스템(100)은 보건 시설 내의 사용 장소들 사이에서 의료 시술 도중 발생하는, 체액, 체조직, 염수 등을 포함하는 폐기물질을 수집하기 위해 이동하기 위한 이동식 폐기물 수집 유닛(102)을 포함한다. 폐기물 수집 유닛(102)은 폐기물질을 수용하기 위한 상측 폐기물 용기(200) 및 하측 폐기물 용기(202)의 층을 포함한다. 사용하는 도중, 상측 폐기물 용기(200)은 임시 저장을 위해 하측 폐기물 용기(202)로 비워질 수 있다. 또한, 복잡한 시술 동안, 독립적으로 제어되는 진공 수준이 폐기물 용기들(200, 202)에 제공될 수 있다. 사용자가 폐기물 수집 유닛(102)을 비우고자 하면, 폐기물 수집 유닛(102)은 도킹 스테이션(104)으로 이동된다. 도킹 스테이션(104)에서, 폐기물 물질은 폐기물 드레인(D)로 내려지고 계속 사용을 위해 세척되고 린스된다. A waste collection and treatment system 100 that can be used in a health facility is provided. The system 100 includes a mobile waste collection unit 102 for moving to collect waste material including body fluids, body tissues, saline, and the like, which occurs during medical procedures between places of use within a health facility. The waste collection unit 102 includes a layer of an upper waste container 200 and a lower waste container 202 for receiving waste material. During use, the upper waste container 200 may be emptied into the lower waste container 202 for temporary storage. Also, during complex procedures, independently controlled vacuum levels can be provided to the waste containers 200, 202. When the user desires to empty the waste collection unit 102, the waste collection unit 102 is moved to the docking station 104. At the docking station 104, the waste material is drained to the waste drain (D) and is cleaned and rinsed for continued use.

Medical/surgical waste collection and disposal system

A waste collection and disposal system (100) for use in health care facilities is provided. The system (100) includes a mobile waste collection unit (102) for moving between use areas in the health care facility to collect waste material generated during medical procedures including body fluids, body tissues, saline, etc. The waste collection unit (102) includes stacked upper (200) and lower (202) waste containers for receiving the waste material. During use, the upper waste container (200) can be emptied into the lower waste container (202) for temporary storage. In addition, independently controlled vacuum levels can be provided in the waste containers (200, 202) during complex procedures. Once a user desires to empty the waste collection unit (102), the waste collection unit (102) is wheeled to a docking station (104). At the docking station (104), the waste material is off-loaded to a waste drain (D) and the waste collection unit (102) is cleaned and rinsed for further use.

Dry dialysate composition

There is disclosed an automated hemodialysis filtration system comprising one or a plurality of the following improvements, including a supply-regulated pump, an inverted drip chamber, a filtrate system communicating with a hemofilter and comprising a filtrate reservoir, a filter pump and pressure sensors, and a means for adding dry pellets to water to form the dialysate.

Medical surgical waste collection and disposal system including a rover and a docker, the docker having features facilitating the alignment of the docker with the rover

A waste collection and disposal system (100) for use in health care facilities is provided. The system (100) includes a mobile waste collection unit (102) for moving between use areas in the health care facility to collect waste material generated during medical procedures including body fluids, body tissues, saline, etc. The waste collection unit (102) includes stacked upper (200) and lower (202) waste containers for receiving the waste material. During use, the upper waste container (200) can be emptied into the lower waste container (202) for temporary storage. In addition, independently controlled vacuum levels can be provided in the waste containers (200, 202) during complex procedures. Once a user desires to empty the waste collection unit (102), the waste collection unit (102) is wheeled to a docking station (104). At the docking station (104), the waste material is off-loaded to a waste drain (D) and the waste collection unit (102) is cleaned and rinsed for further use.

Modular type home dialyzing system

(57)【要約】 【課題】 全過程を自動化すると共に最小の患者の労力 しか必要とせず、コスト上有利であり、移動可能であ り、簡単かつ極めて信頼性のある在宅用血液透析システ ムにおける人工腎臓装置を提供する。 【解決手段】 血液側と透析液側とを区別する透析膜を 有する透析器および、前記透析器に接続されて主に患者 の血液を前記透析器へ導くとともに患者まで戻す経路と なる動脈側および静脈側回路からなる体外循環回路を有 する人工腎臓装置であって、前記体外循環回路には正逆 回転可能な血液ポンプを有し、前記透析器に透析液を供 給する透析液供給流路、および前記透析器から透析液を 排液する透析液排液流路とを含む透析液回路を有し、前 記透析液回路は、透析液を循環させるための透析液ポン プを有し、かつ正逆転可能な限外濾過ポンプを介して限 外濾過タンクと連通する構成であって、前記透析膜を介 した前記血液側から前記透析液側への液輸送もしくは前 記透析液側から前記血液側への液輸送を行うことを特徴 とする人工腎臓装置。

Systems and methods for oxygenator performance evaluation

Apparatus for plasma separation/exchange by double filtration

Disposable cartridge for a blood perfusion system

Intermittent signal actuated nebulizer synchronized with exhalation

A self-contained, high capacity nebulizer (10), having automatic mixing (28) and temperature control (34) features is provided. The nebulizer is designed for use in conjunction with mechanical respirators (70), ventilators, or breathing machines, and for this purpose will use electrical signals (8) generated by or received from the respirator (70) to automatically control and synchronize the nebulizing and mixing functions such that nebulization occurs only during the exhalation phase of the respiratory function to load the gas passageway of the respirator (70) to the patient with a standardized dose of medicinal aerosol. Upon commencement of the inhalation phase, the aerosol in the gas passageway is ventilated into the lungs of the patient to which it is attached.

Apparatus for plasma separation/exchange by double filtration

An apparatus for plasma separation'exchange by double-step-membrane filtration, namely separation of blood into plasma and a corpuscular fraction and separation of high-molecular-weight substances (e.g. gamma-globulin) in the plasma from low-molecular-weight substances (e.g. albumin), and addition of a substitute fluid, comprises a plasma reservoir (7) for receiving the plasma fraction from the first filter means (5) on its way to the second (11) and a level sensor (3) for monitoring the plasma level within the plasma reservoir (7), together with a pump (M 2 ) controlled by the level sensor for adjusting the flow rate and hence maintaining a desired plasma level. The apparatus is used in treating blood, e.g. in patients with peripheral circulatory insufficiency due to arterioscleroses and of patients with rheumatoid arthritis, which is an autoimmune disease.

System and method for dialyzer evaluation

Embodiments of the disclosure provide a method for evaluating dialyzers used in different medical applications (e.g., hemodialysis). Red blood cell volume lost in a dialyzer is monitored by obtaining blood flowrate measurements and hematocrit measurements at input ports and output ports of the dialyzer. The flowrate and hematocrit measurements are used to determine an accumulation of red cell blood volume in the dialyzer. The measurements may be obtained in a lab environment with an in-vitro blood source or may be obtained in a clinical setting with an in-vivo blood source from a patient.

Disposable cartridge for a blood perfusion system

Device for producing ultrapure water

The device for producing ultrapure water according to the reverse osmosis principle with a reverse osmosis filter which is subdivided by the RO membrane into a primary chamber and a secondary chamber, with a primary circuit through which raw water is supplied to the primary chamber and concentrate is discharged therefrom, and with a secondary circuit for supplying permeate to at least one consumer, preferably to a dialysis device, is characterized in that a means for detecting organic and/or inorganic deposits is arranged in or on the primary circuit and/or the secondary circuit and is connected to an evaluation means.

Lightweight noncompliant dialysate solution tank for batch dialysate preparation systems

A dialysis machine is described which has a batch dialysate preparation system comprising a lightweight, substantially noncompliant dialysate tank and volumetrically closed dialysate circuit. The tank is made from a polymeric material, such as polypropylene, with fiberglass windings on the exterior of the tank. The noncompliance of the tank and dialysate circuit allows for greater control over ultrafiltration of the patient.

Device for injection of a sterile and apyrogen liquid obtained by filtration and process to control the integrity of the filter used

Dispositif d'injection d'un liquide stérile et apyrogène obtenu par filtrati on et procédé de contrôle de l'intégrité du filtre utilisé à cette fin. Le dispositif d'injection d'un liquide stérile et apyrogène comprend - au moins un filtre principal (15) ayant un premier et un second compartiments (16, 17) séparés par une membrane poreuse (18), le premier compartiment (16) ayant une entrée connectable à une source (11) de liquide à filtrer et le second compartiment (17) ayant une sortie connectée à une canalisation d'injection (22), - des moyens (23) pour faire circuler le liquide au travers du filtre principal (15) et dans la canalisation d'injection (22), et - des moyens (25, 26, 27) de vérification de l'intégrité du filtre principal comprenant: - un filtre secondaire (24) apte à retenir bactéries et éléments pyrogènes disposé sur la canalisation d'injection (22), et - des moyens (25, 26, 27) pour détecter un encrassement du filtre secondaire (24) pendant l'injection de liquide. L'invention trouve une application particulière dans le cas où le liquide injecté est du liquide de dialyse stérilisé en ligne pour être injecté en tant que liquide de substitution.

Apparatus for removing one or more of components from whole blood, serum or similar body fluids

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Dialysis systems and methods

This invention relates to dialysis systems and methods. In some implementations, a method includes applying vacuum pressure to a device of a dialysis system, and then determining, based on a detected fluid level or measured pressure, whether the device is functioning properly.

Method and apparatus for real time monitoring of blood volume in a filter

A method and apparatus for monitoring and measuring the filter blood volume by dilution techniques in real time, wherein the filter may be in use or off line during the measurements. The system includes a method and apparatus for measuring or monitoring the volume of a blood side of a filter by employing one of a bolus in the blood side upstream of the filter; a change of the filtration rate in the filter; and a bolus on the dialysate side, wherein the filter blood volume is calculated from the obtained data.

Dialysis machine and method of controlling it

A dialysis machine comprises: means for calculat-ing (60) a filtration factor (FF) as a function of the ultrafiltration rate (UFR) and of a plasma flow rate (Q p); first comparison means (65) for comparing the filtration factor (FF) with a limit value of admissibility; and signaling means (70) for generating a signal (A) indicating the result of the comparison.

Modular home dialysis system

A machine for conducting dialysis of body fluids of a patient. The machine includes integral water preparation and treatment, dialysate preparation, and extracorporeal circuit modules, under computer control from a patient interface and control module. A water pretreatment module with a temperature-controlled mixing valve, an integral water filtration and conditioning unit and a pressure relief with integral water sample removal port supplies water to the machine. The dialysate preparation module includes a substantially non-compliant tank with attached batch chemical bottles and automatic chemical addition and dispersion subsystems. The machine incorporates novel automatic process control techniques to verify the status and integrity of the critical system components, ultrafiltration control, and temperature, pressure and conductivity conditions prior to dialysis.

Secondary filter cleaning method in blood plasma filtration method

In a blood plasma filtration method including a primary filtering for separating blood into corpuscule and plasma, and a secondary filtering for cleaning the separated plasma by removing harmful macromolecular substances therefrom, the cleaning of the secondary filter is done by introducing a cleaning liquid the quantity of which corresponds to 5-50 % of the priming volume of the filter into an inner chamber or an outer chamber or both thereof in the filter every time a filtration pressure reaches 70-100 % of the resistible pressure of the filter. This enables the time required to carry out the filtration of blood plasma to be reduced to about 60-70 % of that in a conventional method of this kind, the patient binding hour to be reduced, and the quantity of a cleaning liquid or blood plasma discharged wastefully to the outside of the system to be reduced.

Flow path fault detection method for a respiratory assistance apparatus