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US5362291A Expired / Lapsed US ⏱️ 0.0 years remaining

Centrifugal processing system with direct access drawer

Assignee: Baxter International Inc
•
Filing: 1994-02-09
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Granted: 1994-11-08
•
Expires: 2014-02-09
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Abstract

Abstract A drawer-mounted centrifuge provides easy access for loading and unloading disposable processing elements. The centrifuge also includes an umbilicus holder that moves between an operating position and an out-of-the-way position as the drawer opens and closes.

Inventors

  • 👤 Warren P. Williamson, IV

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 19:56
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0428; B04B5/0442; B04B7/00; B04B7/02; B04B2005/045; B04B2005/0492

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 132 words
A centrifugation system for separating blood into component parts comprising a frame enclosing an interior area, a centrifuge having a mass, and a base including mounts supporting and structurally isolating the mass of the centrifuge for rotation relative to the frame about a rotational axis, the base including at least one track and being carried for movement relative to the frame generally perpendicular to the rotational axis on the at least one track between a first position, in which the isolated mass of the centrifuge is located within the interior area of the frame and access to the centrifuge is blocked by the frame, and a second position, in which the isolated mass of the centrifuge is located outside the interior area of the frame and access to the centrifuge is permitted.
Claim 2
Dependent Claim 132 words
A centrifugation system for separating blood into component parts comprising a frame enclosing an interior area, a centrifuge having a mass, and a base including mounts supporting and structurally isolating the mass of the centrifuge for rotation relative to the frame about a rotational axis, the base including at least one track and being carried for movement relative to the frame generally perpendicular to the rotational axis on the at least one track between a first position, in which the isolated mass of the centrifuge is located within the interior area of the frame and access to the centrifuge is blocked by the frame, and a second position, in which the isolated mass of the centrifuge is located outside the interior area of the frame and access to the centrifuge is permitted.
Claim 3
Dependent Claim 152 words
A centrifugation system for separating blood into component parts comprising a frame enclosing an interior area, a centrifuge having a mass, a processing chamber removably attachable to the centrifuge for receiving blood to undergo centrifugal separation a base including mounts supporting and structurally isolating the mass of the centrifuge for rotation relative to the frame about a rotational axis, the base including at least one track and being carried for movement relative to the frame generally perpendicular the rotational axis on the at least one track between a first position, in which the isolated mass of the centrifuge is located within the interior area of the frame and access to the centrifuge is blocked by the frame, and a second position, in which the isolated mass of the centrifuge is located outside the interior area of the frame and access to the centrifuge is permitted for attaching and removing the processing chamber.
Claim 4
Dependent Claim 152 words
A centrifugation system for separating blood into component parts comprising a frame enclosing an interior area, a centrifuge having a mass, a processing chamber removably attachable to the centrifuge for receiving blood to undergo centrifugal separation a base including mounts supporting and structurally isolating the mass of the centrifuge for rotation relative to the frame about a rotational axis, the base including at least one track and being carried for movement relative to the frame generally perpendicular the rotational axis on the at least one track between a first position, in which the isolated mass of the centrifuge is located within the interior area of the frame and access to the centrifuge is blocked by the frame, and a second position, in which the isolated mass of the centrifuge is located outside the interior area of the frame and access to the centrifuge is permitted for attaching and removing the processing chamber.
Claim 5
Dependent Claim 66 words
A system according to claim 1 or 2 wherein the frame includes a drawer carried by and movable on the at least one track between a closed position and an opened position, and wherein the centrifuge base is mounted within the drawer and is located in its first position when the drawer is closed and is located in its second position when the drawer is opened.
Claim 6
Dependent Claim 18 words
A system according to claim 3 and further including means for locking the drawer in its closed position.
Claim 7
Dependent Claim 21 words
A system according to claim 3 and further including interlock means for preventing opening of drawer when the centrifuge is rotated.
Claim 8
Dependent Claim 207 words
A centrifugation system comprising a frame enclosing an interior area, a centrifuge, means for rotating the centrifuge about an axis, a processing chamber removably attachable to the centrifuge, an umbilicus for conveying fluid into the processing chamber to undergo centrifugal separation during rotation of the centrifuge, a base supporting the centrifuge on the frame and including a holder releasably receiving the umbilicus, the holder being moveable between an operating position for orienting the umbilicus in a prescribed adjacent relationship with the centrifuge and an nonoperating position spaced away from centrifuge, at least one track supporting the base for movement between an enclosed position, in which the centrifuge and holder are located within the interior area of the frame and access to the centrifuge and the holder is blocked, and an exposed position, in which the centrifuge and holder are located outside the interior area of the frame and access to the centrifuge and the holder are permitted for attaching and removing the processing chamber and receiving and removing the umbilicus, and means for moving the holder toward its operating position during movement of the base toward the enclosed position and for moving the holder toward its nonoperating position during movement of the base toward the exposed position.
Claim 9
Dependent Claim 207 words
A centrifugation system comprising a frame enclosing an interior area, a centrifuge, means for rotating the centrifuge about an axis, a processing chamber removably attachable to the centrifuge, an umbilicus for conveying fluid into the processing chamber to undergo centrifugal separation during rotation of the centrifuge, a base supporting the centrifuge on the frame and including a holder releasably receiving the umbilicus, the holder being moveable between an operating position for orienting the umbilicus in a prescribed adjacent relationship with the centrifuge and an nonoperating position spaced away from centrifuge, at least one track supporting the base for movement between an enclosed position, in which the centrifuge and holder are located within the interior area of the frame and access to the centrifuge and the holder is blocked, and an exposed position, in which the centrifuge and holder are located outside the interior area of the frame and access to the centrifuge and the holder are permitted for attaching and removing the processing chamber and receiving and removing the umbilicus, and means for moving the holder toward its operating position during movement of the base toward the enclosed position and for moving the holder toward its nonoperating position during movement of the base toward the exposed position.
Claim 10
Dependent Claim 27 words
A system according to claim 6 and further including locking means for retaining the holder in its operating position when the base is in its enclosed position.
Claim 11
Dependent Claim 27 words
A system according to claim 7 wherein the locking means is freed in response to movement of the base from its enclosed position toward its exposed position.
Claim 12
Dependent Claim 39 words
A system according to claim 6 and further including force dampening mounts between the base and the centrifuge and the holder for isolating the base from vibration and oscillation of the centrifuge and holder during rotation of the centrifuge.
Claim 13
Dependent Claim 44 words
A system according to claim 6 wherein the at least one track moves the base in a direction generally perpendicular to the rotation axis of the centrifuge, and wherein the means for moving the holder pivots the holder generally axially of the rotational axis.
Claim 14
Dependent Claim 64 words
A system according to claim 6 wherein the frame includes a drawer carried by and movable on the at least one track between a closed position and an opened position, and wherein the centrifuge base is mounted within the drawer and is located in the enclosed position when the drawer is closed and is located in the exposed position when the drawer is opened.
Claim 15
Dependent Claim 28 words
A system according to claim 11 wherein the drawer has an open top to allow user access to the centrifuge and the holder when the drawer is opened.
Claim 16
Dependent Claim 53 words
A system according to claim 12 wherein the holder orients the umbilicus in a prescribed relationship above the centrifuge when in its operating position and is spaced away from centrifuge when in its nonoperating position to allow access to the centrifuge through the open top of the drawer when the drawer is opened.
Claim 17
Dependent Claim 46 words
A system according to claim 11 wherein the drawer moves the base in a direction generally perpendicular to the rotation axis of the centrifuge, and wherein the means for moving the holder pivots the holder generally axially of the rotational axis during movement of the drawer.
Claim 18
Dependent Claim 51 words
A system according to claim 6 wherein the means for moving the holder includes first means for biasing the holder toward its nonoperating position and second means for retaining the holder means in its operating position against the force of the first means when the base is in its enclosed position.
Claim 19
Dependent Claim 64 words
A system according to claim 15 wherein the second means includes locking means for retaining the holder in its operating position when the base is in its enclosed position and means for releasing the locking means in response to movement of the base from its enclosed position toward its exposed position to allow the first means to urge the holder towards its nonoperating position.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-11-07 1998-05-09 1998-11-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-11-07 2002-05-09 2002-11-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-11-07 2006-05-09 2006-11-08 $7700.00 Window Closed / Lapsed

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