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公开(公告)号：US3801142A
公开(公告)日：1974-04-02
申请号：US3801142D
申请日：1972-06-30
Applicant: IBM
CPC classification number: F16L27/082 , F16J15/36 , F16L27/0828
Abstract: An improved fluid coupling permitting relative rotation between two rotatable fluid-tight seal elements, having confronting annular fluid-tight surfaces, maintained in a fluid-tight relationship by axial compression of a length of elastic tubing forming one of the fluid connections to said seal elements.
Abstract translation: 改进的流体联轴器允许两个可旋转的流体密封密封元件之间的相对旋转，其具有面对的环形流体密封表面，通过一定长度的弹性管道的轴向压缩保持流体密封的关系，该弹性管道形成与所述密封元件 。
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公开(公告)号：US3737096A
公开(公告)日：1973-06-05
申请号：US3737096D
申请日：1971-12-23
Applicant: IBM
CPC classification number: B04B5/0442 , A61M1/0011 , A61M1/025 , A61M1/3692 , A61M1/3696 , A61M1/3698 , A61M5/1483 , A61M2202/0429
Abstract: Apparatus for processing blood, and particularly for washing blood cells, including a centrifuge head in which is arranged a flexible blood container connected by a rotating seal to tubing which permits the entrance and exit of wash liquid and supernatant. The flow of liquid in the tubing is controlled by valve arrangements which are operable to permit the entrance of wash liquid and removal of supernatant liquid. The flexible container fits over a flexible membrane also arranged inside the centrifuge head about a solid central core. The volume defined by this membrane and the core communicates via a passage in the core with a fluid reservoir by means of a control pump which allows fluid to enter and exit from the volume defined by the membrane. During operation the unwashed blood may be entered into the container or blood bag before or after the bag is placed in the centrifuge. The centrifuge is spun until cells have settled against the outside wall at which time the valve arrangements and the control pump are activated such that fluid is pumped into the centrifuge under the volume defined by the membrane thereby forcing a supernatant to flow out to a collect container. The centrifuge is then stopped and the wash solution enters the blood container through another valve arrangement, thereby allowing the removal of fluid from the volume inside the flexible membrane. Removal of the wash liquid is accomplished by the same process of removal as the removal of supernatant previously described. Provisions are made for electrical control of all the operations including an agitate operation in which the centrifuge is spun in alternate directions for only a few revolutions or goes through alternate accelerate-decelerate cycles while rotating in the same direction to thereby agitate the material in the blood bag or flexible container during the time that a wash solution is entering. The circuit arrangements are such that a high degree of flexibility in the programming of the various operations can be obtained.
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公开(公告)号：ZA783523B
公开(公告)日：1980-02-27
申请号：ZA783523
申请日：1978-06-20
Applicant: IBM
Abstract: An improved centrifuge assembly comprising a channeled rotor assembly and a fluid container disposed in the channel, whereby the centrifugal separation effects in the fluid container are determined by the geometry of the channel in the rotor. This arrangement is particularly useful for two-stage blood platelet separation. The fluid container is preferably formed from semirigid plastic material and is considered a disposable item to be discarded after a single use. The rotary assembly preferably includes a removable filler piece or center piece formed from a single piece of material, such as rigid plastic, as by machining or molding, and having therein an open-topped channel having dimensions appropriate to receive the semirigid container, which is suitably curved and placed in the channel. Fluid connections are provided from each end of the container and an intermediate point to an axially located multichannel rotating seal. The connections lie in a plurality of radial slots in the filler piece. The channel is divided into two distinct portions, the first portion of the channel being circular with a constant radius, and the second portion being spiral and having a plurality of radiuses, each measured from a different center, the spiral increasing radially outward from its juncture with the first stage. The intermediate fluid connection is established near the junction of the first stage and the second stage. The spiral portion of the channel and container may have an outward slope from bottom to top.
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Patent Agency Ranking
公开(公告)号：ZA7803523B
公开(公告)日：1980-02-27
申请号：ZA7803523
申请日：1978-06-20
Applicant: IBM
CPC classification number: B04B5/0428 , B04B5/0442 , B04B2005/045
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公开(公告)号：ZA782114B
公开(公告)日：1979-11-28
申请号：ZA782114
申请日：1978-04-12
Applicant: IBM
Abstract: An improved centrifuge assembly comprising a channeled rotor assembly and a ring-like fluid container disposed in the channel, whereby the centrifugal separation effects in the fluid container are determined by the geometry of the channel in the rotor. The fluid container is preferably formed from semirigid plastic material in the form of a tube having a rectangular cross section and is considered a disposable item to be discarded after a single use. The rotor assembly preferably includes a removable filler piece or center piece formed from a single piece of material, such as rigid plastic, as by molding, dimensioned to form, with the wall of the centrifuge bowl, a circular channel having dimensions appropriate to receive the semirigid container, which is suitably bent and placed in the channel. Fluid connections are provided from each end of the container to an axially located multichannel rotating seal. The connections lie in a plurality of radial slots in the filler piece. Alternatively the entire assembly may be molded as a single entity, with a suitable channel and fluid line grooves being cast therein.
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公开(公告)号：ZA782115B
公开(公告)日：1979-11-28
申请号：ZA782115
申请日：1978-04-12
Applicant: IBM
Abstract: An improved collecting chamber for use with centrifuges for separating particles of different density suspended in a fluid, especially for separating the various fractions in human blood.
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公开(公告)号：ZA7802115B
公开(公告)日：1979-11-28
申请号：ZA7802115
申请日：1978-04-12
Applicant: IBM
CPC classification number: B04B5/0442 , A61M1/3696 , B04B2005/045
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公开(公告)号：ZA7802114B
公开(公告)日：1979-11-28
申请号：ZA7802114
申请日：1978-04-12
Applicant: IBM
CPC classification number: B04B5/0442 , B04B2005/045
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