Abstract: A chamber for use in a rotating field to separate blood components. An inlet port near one end of the chamber introduces blood into the chamber for flow circumferentially about the rotational axis toward the opposite end of the chamber for separation into at least one blood component. At least one outlet port is juxtaposed next to the inlet port near the one end of the chamber for conveying one separated blood component from the channel. The chamber directs the one separated blood component to a collection region near the opposite end of the chamber. An enclosed interior collection passage within the channel leads from the collection region and directs the one collected component to the outlet port for transport from the chamber.
Abstract: Apparatus for separating a biological component from a biological fluid are disclosed. The apparatus includes a chamber for receiving a biological fluid including a biological component, and a rotor for creating a centrifugal field within the chamber. A source of particles may be included wherein the particles have a binding site for selectively binding to the biological component. The particles may be aseptically introduced into the chamber. The apparatus may withdraw whole blood from a donor, separate the whole blood to obtain a target cell population and return a selected one of either the target cell population or at least a portion of the whole blood remainder to the donor or patient. A disposable separation inset for use in conjunction with a rotatable separation device such as the apparatus described above may also be provided.
Type:
Grant
Filed:
April 12, 1999
Date of Patent:
April 24, 2001
Assignee:
Baxter International Inc.
Inventors:
Richard Giesler, John R. Chapman, Dale R. Ellis, Daniel F. Bischof
Abstract: This disclosure sets forth a method and apparatus for operation of a centrifuge. It is constructed with a fluid inlet at one end delivering a liquid flow into a feed pipe and then into a rotating bowl. The bowl has an outer wall which is cylindrical and which is formed of adjacent individual pieces defining gaps between pieces. In one embodiment, 960 pieces define 960 parallel slots. The slots are quite narrow, having a width of 80 microns to thereby exclude particles larger than that. The mud flow is introduced into the bowl region, and a flited conveyor is operated to scroll the particles along the bowl towards the opposite end, a tapered beach cone, and that terminates at a set of discharge openings. Dry powder too large to pass through the slots is discharged from there. While the slots discharge the mud, particles are removed by this approach.
Abstract: An apparatus comprising a longitudinally extending housing having a fluid inlet port; a plurality of spaced apart members rotatably mounted in the housing to transmit motive force between fluid introduced through the fluid inlet port and the members and to separate the fluid into at least two fluid streams; and, a fluid outlet port positioned on the housing for receiving each fluid stream.
Type:
Grant
Filed:
January 8, 1999
Date of Patent:
February 6, 2001
Assignee:
Fantom Technologies Inc.
Inventors:
Wayne Ernest Conrad, Helmut Gerhard Conrad, Ted Szylowiec
Abstract: The invention relates to a method and a device for clearing product, e.g., sugar, from the inside of a centrifuge basket of a discontinues centrifuge. A scraper blade, which is attached to a clearing rod, is pivoted toward the spun-off layer of product. The scraper blade scrapes off the product with a cutting edge, which is directed in a direction that is opposite to the direction of rotation of the basket. To optimize the product removal, it is preferable if the scraper blade, after it has been pivoted inward, contacts the product over virtually the entire height of the basket and at the same time scrapes off the product from the layer of product which is rotating at the clearing rotational speed in layers over the entire height of the basket. Once the product has been substantially completely removed from the basket, the scraper blade is pivoted back away from the basket wall.
Type:
Grant
Filed:
April 29, 1999
Date of Patent:
January 23, 2001
Assignee:
Braunschweigische Maschinenbauanstalt AG
Abstract: The invention concerns a device for the oil treatment of sintered parts consisting of a drum (11, 111) which is mounted so that it can rotate about a vertical axis and which can be driven. It has a drum mantle (11′, 111′) and loading and unloading devices so that it can be loaded and unloaded axially, a floor that tightly closes the opening in the floor (19, 119) against the-drum mantle (11′, 111′), connections (28, 29, 30, 31/128, 129, 130, 131) leading into the drum (11, 111) for liquid and gaseous treatment media for carrying out the treatment phases, and outlets (35, 135) for letting treatment fluids out of the drum (11, 111). The task of the invention is to create a device that not only mechanizes the treatment process but also can be repeated many times, always in the same way.