Abstract:
A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including a first sidewall and a second sidewall, a first fluid opening, a second fluid opening, and a separation wall extending from the first sidewall to the second sidewall, the separation wall having a free edge residing within the air separation chamber, the separation wall forcing the dialysis fluid to flow from one of the fluid openings around the free edge of the separation wall to the other of the openings.
Abstract:
A dialysis fluid heating system includes a plurality of conductive tubes; first and second end caps located at first and second ends of the tubes, respectively, the first end cap including a dialysis fluid inlet and a dialysis fluid outlet, the end caps and the tubes configured such that dialysis fluid can flow from the fluid inlet of the first end cap, through at least one first tube to the second end cap, and through at least one second tube back to the first end cap; a conductive wire wound around an outside of the conductive tubes; and electronics configured to supply power to the conductive wire, the wire forming a primary coil of a transformer, the tubes forming a secondary coil of the transformer.
Abstract:
A dialysis fluid cassette includes a rigid portion defining at least one valve chamber, the rigid portion further defining an air separation chamber, the air separation chamber when in an operating position including a first sidewall and a second sidewall, a first fluid opening, a second fluid opening, and a separation wall extending from the first sidewall to the second sidewall, the separation wall having a free edge residing within the air separation chamber, the separation wall forcing the dialysis fluid to flow from one of the fluid openings around the free edge of the separation wall to the other of the openings.
Abstract:
A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
Abstract:
A blood detection system is used to detect blood in a patient undergoing an extracorporeal blood therapy, such as hemodialysis or apheresis. The blood detection system uses a digital video device, which may be a camera, such as a standard digital video camera, a low light camera, an infrared camera, or a night vision camera. The digital image is sent to a computer with image processing and pattern recognition software. The software is used to detect whether a pool of blood is forming at the access site. The system is able to detect a pool of blood atop the access site, such as when a leak or a dislodgement of a needle occurs. The system is also able to detect pooling of blood under the skin, as a result, for instance, infiltration of an arteriovenous fistula.
Abstract:
An applicator gun for spraying a medically useful multiple component fluid to an area of interest. The handheld applicator gun functionally receives a commercially available or standardized multi-syringe applicator in a controllable manner. The handheld applicator gun further includes a return stop and a dispensing stop to limit the force exerted on the multi-syringe applicator.
Abstract:
A vacuum demand valve (10) is capable of delivering a flowable material. The valve (10) has a housing (11) having a proximal end (14), a distal end (16), an intermediate segment (18) therebetween defining a passageway (24) wherein the flowable substance can flow from the proximal end (14) to the distal end (16). The housing (11) can be tubing. A valve member (20) is located along the intermediate segment (18). The valve member (20) has a closed condition wherein the flowable material from the proximal end (14) to the distal end (16) is stopped and an open condition wherein the flow of the flowable material from the proximal end (14) to the distal end (16) is unstopped. The valve member (20) is biased in the closed condition and is responsive to a partial vacuum provided by the user through the passageway (24) for placing the valve member (20) in the open condition.
Abstract:
Aplikator za miješanje i primjenu više-komponentnih pripravaka na radnu površinu, kao što su dvo-komponentna kirurška sredstva za brtvljenje, pri čemu se izbjegava začepljivanje, sprječava se unakrsna kontaminacija komponenti do točke predviđene za miješanje na mjestu unutar uređaja koje je u neposrednoj blizini otvora za primjenu koji se nalazi u poklopcu vrška, smanjuje se pad tlaka uzduž aplikatora kako bi se olakšalo dovođenje fluida, te se povećava učinkovitost miješanja komponenata. Predviđen je podsklop luer priključka koji ima proksimalno čvorište i distalno čvorište, izduženu, kanilu za četiri lumena, te podsklop vrha raspršivača, s međusobnim vezama između podsklopova koji održavaju izolaciju tekućih komponenata jedne od druge. Podsklop poklopca vrha sadrži registracijsku strukturu kako bi se osiguralo pravilno poravnanje između poklopca vrha i umetka vrha. Krajnja stjenka poklopca vrha uključuje područje mješališta sa tri napojna kanala koja vode u njega, tekuće komponente ostaju izolirane jedna od druge u dva napojna kanala, te započinju miješanje jedna s drugom u trećem napojnom kanalu.
Abstract:
Un sistema de desconexi?n de acceso ?ptico (10) es ?til para detectar la presencia de sangre. El sistema de desconexi?n de acceso ?ptico incluye uno o m?s sensores ?pticos (14) colocados cerca de un sitio de acceso de un paciente, los sensores ?pticos adecuados para detectar la presencia de sangre, especialmente al detectar una diferencia en luz reflejada o absorbida por la sangre. El sistema de desconexi?n de acceso ?ptico tambi?n puede utilizarse como un bloqueo para asegurar el cumplimiento. Puede colocarse un detector adyacente al sitio de acceso para detectar la aguja de acceso, o un objeto o una marca en la aguja de acceso o l?nea de fluido. Una m?quina de terapia, tal como una m?quina de di?lisis, puede programarse para no iniciar o continuar la operaci?n al menos que se detecte la aguja o la l?nea de fluido. El detector puede ser uno de los sensores ?pticos, calibrados o ajustados para detectar una marca en la aguja o la l?nea de acceso, o puede ser otro tipo de detector.
Abstract:
Un dispositivo (10, 250) aplicador para aplicar al menos un agente a un sitio diana, que comprende: una sección (18, 280) rígida configurada para el paso de fluido a su través, teniendo la sección rígida una porción (26, 284) extrema proximal y una porción (22, 286) de extremo distal, estando la porción extrema proximal configurada para estar en comunicación con y recibir fluido de al menos un depósito (80, 90) de fluido; y una sección (24) conformable unida a la porción (22, 286) de extremo distal de la sección rígida (18), estando la sección (24) conformable configurada para configurarse en una configuración deseada, la sección (24) conformable que comprende un tubo (224) maleable y un lumen (256) configurado para recibir fluido de la sección (18, 280) rígida; y caracterizado porque el tubo (224) maleable comprende dos alambres (240a, 240b) de refuerzo colocados en la pared del tubo en posiciones diametralmente opuestas, los dos alambres (240a, 240b) de refuerzo configurados para proporcionar restricción en al menos una dirección en una primera el plano se extiende a través de ambos alambres de refuerzo y está configurado para permitir la flexión en al menos una dirección en un segundo plano axial perpendicular al primer plano y en el que los alambres (240a, 240b) de refuerzo están configurados para ayudar a retener el tubo (224) maleable en la configuración deseada.