Abstract:
PROBLEM TO BE SOLVED: To provide a dialyzer having an improved dialyzate perfusion to fiber bundles. SOLUTION: A dialyzer is provided comprising a casing defining an interior and including a dialysate inlet 30 and a dialysate outlet. A plurality of fibers are located in the interior of the casing and define a fiber bundle 26. A dialysate inlet fluid channel is provided in fluid communication with the dialysate inlet and includes a plurality of flutes 50 that extend into a portion of the fiber bundles 20, the flutes 50 define an opening for allowing dialysate to flow from the inlet fluid channel into the interior of the casing. COPYRIGHT: (C)2008,JPO&INPIT
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:
Adapters are provided for establishing fluid communication between an anesthetic agent container and an anesthetic vaporizer having a fluid port. The adapter may be mountable on the vaporizer to cooperate with the spout of an anesthetic agent container or may be mountable on an anesthetic agent container to cooperate with the fluid port of an anesthetic vaporizer to provide a sealing and/or retaining relationship therebetween.
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:
Flow-through systems for processing biological fluid are disclosed. The flow-through systems include a removal device in the flow path for removing unwanted compounds and agents. The removal device includes a removal media contained within a housing made of two separate portions sealed together. The housing is maintained in a substantially vertical disposition, thereby ensuring substantially uniform and complete exposure of the fluid to the media.
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 medical fluid machine includes (i) a pump that pumps a medical fluid and (ii) a heater that heats the medical fluid, the heater including an electrically insulative housing, at least one flat sheet of electrically conductive material suitable for contacting the medical fluid, the sheet disposed within the insulative housing, the sheet defining a flow path for the medical fluid in which the medical fluid changes direction at least one time, a primary coil of a transformer located outside the insulative housing, the primary coil configured to induce a current into the at least one conductive sheet, creating heat that may be transferred to the medical fluid.
Abstract:
Blood processing systems and methods create dynamic vortex flow conditions within the processing chamber by conveying blood into a separation path that extends circumferentially about the rotational axis along an entry path that extends generally parallel to the rotational axis. The vortex flow conditions perfuse blood into the separation path for separation into component parts. The systems and methods confine the vortex flow pattern along the entry path by reducing the radial width of the entry path.
Abstract:
The present invention provides an intravenous fluid flow regulator (10) for controlling the I.V. administration of medical fluid to a patient. The fluid flow regulator (10) provides a housing (12) having a top (18) and a bottom (20). A flexible diaphragm (14) is positioned within housing (12). A diaphragm holder (16) is provided inside housing (12) for holding a sealing edge (56) of flexible diaphragm (14) in fluid sealing engagement with diaphragm holder (16). The housing (12) and flexible diaphragm (14) define an inlet fluid reservoir (62) and an outlet fluid reservoir (64). The diaphragm holder (16) defines a by-pass fluid channel (54) from inlet fluid reservoir (62), around diaphragm (14), to outlet fluid reservoir (64). The flexible diaphragm (14) being flexible to alternatively move into inlet fluid reservoir (62) and outlet fluid reservoir (64) depending on a fluid pressure differential between inlet fluid reservoir (62) and outlet fluid reservoir (64).