公开(公告)号：US20250147003A1

公开(公告)日：2025-05-08

申请号：US18938376

申请日：2024-11-06

Applicant: Fenwal, Inc.

Inventor： Benjamin E. Kusters ,  James G. Madsen ,  Kyle Betancourt

IPC: G01N33/49 ,  G01N21/51

Abstract: An optical detection assembly for monitoring a fluid includes a light source, a light detector array, and a controller. The controller receives signals from the light detector array that are indicative of the intensity of light received by the light detector array after the light has passed through the fluid. The controller generates a scattering profile based on the signals, with the scattering profile including rising and falling edges each having a slope. The controller calculates one or both slopes and determines the platelet mass index (for a platelet-containing fluid) and/or the concentration of a substance in the fluid based on said slope(s). The optical detection assembly may also be used to analyze a reference fluid having a known concentration of the substance, with signals received by the controller when analyzing the reference fluid being a factor when determining the concentration of the substance in the fluid of interest.

公开(公告)号：US20240216590A1

公开(公告)日：2024-07-04

申请号：US18539366

申请日：2023-12-14

Applicant: Fenwal, Inc.

Inventor： James G. Madsen

IPC: A61M1/02

CPC classification number: A61M1/0272 ,  A61M2202/0413 ,  A61M2205/103

Abstract: A centrifuge includes a yoke driven at a rotational speed with respect to a stationary frame of the centrifuge by a drive shaft extending from a motor. A timing belt engages a stationary sun gear and a planet gear, with rotation of the yoke rotating the timing belt and the planet gear. A shaft is associated with the planet gear, with rotation of the planet gear causing the shaft and an associated first sheave to rotate within and with respect to the yoke. Another timing belt engages the first sheave, with rotation of the first sheave causing the second timing belt and a second sheave to rotate with respect to the yoke. A receptacle rotates with the second sheave to cause a fluid separation chamber to rotate with respect to the stationary frame at a speed that is double the rotational speed at which the drive shaft is driven.

公开(公告)号：US20230243746A1

公开(公告)日：2023-08-03

申请号：US18101275

申请日：2023-01-25

Applicant: Fenwal, Inc.

Inventor： Benjamin E. Kusters ,  James G. Madsen ,  Daniel R. Boggs

IPC: G01N21/59 ,  G01N21/47

CPC classification number: G01N21/59 ,  G01N21/47

Abstract: An optical detection assembly for monitoring a fluid includes a light source, a light detector array, and a controller. The light source emits light into a fluid, while the light detector array includes a plurality of light detectors and receives light exiting the fluid. The controller determines the concentration of one or more substances in the fluid based on signals received from the light detector array. The assembly may include a second light detector array, with one array receiving transmitted light exiting the fluid, with the other receiving scattered light exiting the fluid. The assembly may include a vessel attachment receiving a portion of a vessel or a vessel connector connecting two vessels. The controller may be configured to determine the concentration of one or more substances in a fluid within a vessel received by a vessel attachment or in a fluid within a conduit defined by a vessel connector.

公开(公告)号：US20250001057A1

公开(公告)日：2025-01-02

申请号：US18757672

申请日：2024-06-28

Applicant: Fenwal, Inc.

Inventor： Benjamin E. Kusters ,  Kyungyoon Min ,  James G. Madsen

IPC: A61M1/02

Abstract: A blood processing device includes a pump system, a valve system, a separator and a controller configured to execute a plasma collection stage of a blood processing procedure by actuating the pump system and the valve system to convey blood from a blood source into the separator, actuating the separator to separate the blood into at least plasma and red blood cells, in a transfusion plasma collection step actuating the pump system and the valve system to convey a first volume of separated plasma out of the separator along a first flow path for transfusion plasma collection, and in a fractionation plasma collection step of the plasma collection stage, actuating the pump system and valve system to convey a second volume of the separated plasma out of the separator along a second flow path for fractionation plasma collection.

公开(公告)号：US20240347147A1

公开(公告)日：2024-10-17

申请号：US18631510

申请日：2024-04-10

Applicant: Fenwal, Inc.

Inventor： Benjamin E. Kusters ,  Kyungyoon Min ,  James G. Madsen

IPC: G16H10/40

CPC classification number: G16H10/40

Abstract: A biological fluid processing system and a method of executing a biological fluid processing procedure is disclosed. The biological fluid processing system includes a processing device, a scanner, and a data management system. The processing device includes a display screen and a controller which operates the processing device to implement a biological fluid processing procedure having a plurality of steps. The controller displays an image on the display screen. The scanner interacts with the device screen to retrieve data from the image and transmit the data to the data management system. The scanner and/or the data management system transmit a signal to the controller based on the data. The controller initiates at least one step of the biological fluid processing procedure upon receiving the signal.