Granted Patent B2

US 12,558,442 · App. 18/649,706 · Granted Feb 24, 2026

Inventors: Daniel Church (Danville, CA); Lloyd Ison (Livermore, CA); Marc Stern (Oakland, CA)

Assignee: Cerus Corporation

A61L2/084A61L2/10A61L2/26A61M1/3623G06F3/048A61L2202/122A61L2202/14A61L2202/22

Abstract

Claims (46)

1 . A platform for use in a biological fluid treatment system, the platform comprising:

an inner region configured to carry a biological fluid for treatment by the biological fluid treatment system, the inner region configured to move to agitate the biological fluid

wherein the inner region comprises an inner region assembly, the inner region assembly comprising one or more removable portions configured to carry the biological fluid and a cradle portion for receiving the one or more removable portions,

wherein the one or more removable portions comprise a tray;

an outer region comprising a support structure, the outer region configured to remain in a fixed position during a time period in which the inner region moves to agitate the biological fluid; and

a panel, wherein the panel is configured to move between a closed position and an open position;

wherein, in the closed position:

the panel covers an opening to a treatment chamber of the biological fluid treatment system, and

the biological fluid is positioned in the treatment chamber;

wherein, in the open position, the panel uncovers the opening to the treatment chamber of the biological fluid treatment system.

2 . The platform of claim 1 , wherein the panel is attached to the outer region of the platform.

3 . The platform of claim 1 , wherein the support structure of the outer region structurally supports the inner region of the platform.

4 . The platform of claim 1 , wherein the support structure of the outer region comprises inner rails or tracks that structurally support the inner region of the platform.

5 . The platform of claim 1 , wherein the outer region supports the cradle.

6 . The platform of claim 1 , wherein the cradle is mounted to or in inner rails or tracks of the outer region of the platform.

7 . The platform of claim 1 , wherein the biological treatment system comprises a sensor for determining a position of the cradle and/or whether a removable inner region portion is in the cradle.

8 . The platform of claim 1 , wherein the one or more removable portions comprise a rear compartment configured to carry a container containing the biological fluid in a position for illumination of the biological fluid.

9 . The platform of claim 8 , wherein the rear compartment comprises a compartment floor of material that is transparent or partially transparent to light emitted by light sources of the biological fluid treatment system.

10 . The platform of claim 1 , wherein the outer region comprises outer rails or tracks, the outer region configured to slidably move into and out of the treatment chamber via the outer rails or tracks.

11 . The platform of claim 1 , wherein the panel comprises a protruding handle or a recessed handle configured to allow the panel and the platform to be manually moved between the closed position and the open position.

12 . The platform of claim 1 , wherein an entire exterior of the panel lacks any handle.

13 . The platform of claim 12 , wherein the panel is configured to be opened when a force opposite to an opening direction is applied to the exterior of the panel.

14 . The platform of claim 12 , wherein the panel is configured to be opened using mechanical components to actuate the panel.

15 . The platform of claim 12 , wherein the panel is configured to be opened by a spring mechanism.

16 . The platform of claim 1 , wherein the panel is configured to open when the treatment of the biological fluid is starting or is complete.

17 . The platform of claim 1 , wherein the panel is configured to open for loading or unloading the biological fluid.

18 . The platform of claim 1 , wherein the biological treatment system comprises one or more sensors for determining a position of the platform, whether the platform is in a closed position, the presence of a biological fluid, and/or whether the platform is locked or latched.

19 . The platform of claim 1 , further comprising one or more motors or servos configured to move to agitate the biological fluid.

20 . The platform of claim 19 , wherein the outer region of the platform comprises the one or more motors or servos.

21 . The platform of claim 19 , wherein the one or more motors or servos are mounted to or on the platform.

22 . The platform of claim 19 , wherein the one or more motors or servos are located at a position in front of where the biological fluid is to be carried by the platform, between the panel and where the biological fluid is to be carried by the platform, to the rear of where the biological fluid is to be carried by the platform, or on the left or right of a where the biological fluid is to be carried by the platform.

23 . The platform of claim 19 , further comprising electrical wiring for powering and/or controlling the one or more motors or servos, wherein the electrical wiring is located inside or along the outer region.

24 . The platform of claim 1 , wherein movement of the inner region to agitate the biological fluid is forward and backward.

25 . The platform of claim 1 , wherein the panel further comprises air venting.

26 . The platform of claim 25 , wherein the air venting is configured to provide one or more air inlets for drawing air into the biological fluid treatment system, or the air venting is configured to provide one or more air outlets for expelling air out of the biological fluid treatment system.

27 . The platform of claim 25 , wherein the air venting comprises vent holes.

28 . The platform of claim 25 , wherein the air venting occupies all of the area of the panel, a fraction of the area of the panel, distinct horizontal venting strips, distinct vertical venting strips, circular or oval venting strips, rectangular or square venting strips, polygon venting strips, or a combination thereof.

29 . The platform of claim 1 , wherein the panel further comprises a filter compartment.

30 . The platform of claim 29 , wherein the filter compartment comprises an air filter for filtering incoming air.

31 . The platform of claim 1 , wherein the bottom of the platform is transparent or partially transparent to light used for the treatment of the biological fluid.

32 . The platform of claim 31 , wherein the transparency is greater than 95% transparent, greater than 90% transparent, or greater than 80% transparent to light used for the treatment of the biological fluid.

33 . The platform of claim 31 , wherein the light is ultraviolet light.

34 . The platform of claim 1 , wherein, when in the closed position, edges of the panel are flush or substantially flush with an adjacent structure.

35 . A method for using a biological fluid treatment system, the method comprising:

using a platform of claim 1 , the biological fluid treatment system comprising the platform; and

treating a biological fluid using the biological fluid treatment system.

Assignments (1)

Continuity (5)

References Cited (346)