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公开(公告)号：US20240216597A1
公开(公告)日：2024-07-04
申请号：US18392123
申请日：2023-12-21
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Kyungyoon Min
IPC: A61M1/36
CPC classification number: A61M1/3621
Abstract: Systems and methods are provided to recover residual biological fluid from a soft sided fluid filter having an inlet and an outlet and which is used by a biological fluid processing system, including a reusable hardware unit comprising a fluid filter compression assembly. The fluid filter compression assembly further includes a housing having an outer wall that defines a housing space that receives the fluid filter, at least one bladder positioned within the housing space, at least one conduit, at least one pump, wherein the at least one conduit is in fluid communication with the at least one bladder and the at least one pump, and at least one clamp configured to selectively stop flow through the fluid filter inlet.
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公开(公告)号：US20230271198A1
公开(公告)日：2023-08-31
申请号：US18113773
申请日：2023-02-24
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Richard I. Brown , Kyungyoon Min
IPC: B04B5/04
CPC classification number: B04B5/0442 , B04B2005/045
Abstract: Fluid separation chambers are provided with a central hub, with generally annular low-G and high-G walls extending about the hub to define therebetween a separation channel. A plurality of radial walls extend from the hub to the channel to define an inlet passage, two outlet passages, and a terminal wall separating an upstream end of the separation channel from a downstream end of the channel. The radius of the high-G wall is greater at the downstream end of the separation channel than at the upstream end, which may include the radius gradually increasing along a tapered section of the high-G wall. The tapered section may extend from the upstream end of the separation channel to the downstream end of the channel or along a smaller length of the channel. The radius of the low-G wall may similarly increase from the upstream end of the separation channel to the downstream end.
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公开(公告)号：US20230218814A1
公开(公告)日：2023-07-13
申请号：US18151597
申请日：2023-01-09
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters
IPC: A61M1/36
CPC classification number: A61M1/3693 , A61M2202/0427
Abstract: Systems and methods are provided for improving efficiency and quality of plasma being removed from a blood separation chamber. The system includes a separation chamber in which plasma is separated from cellular blood components, a pump for moving the plasma and an outlet line for removing the separated plasma from the blood separation chamber. An optical sensor assembly is configured to monitor the blood separation chamber and measure an interface position between the separated component and the plasma, and to generate an output indicative of the measured interface position. A controller is programmed to utilize a lipid concentration input of the blood and to set an original lipemia offset, a lipemia threshold and lipemia final setpoint from a predetermined database, and to use a proportional-integral-derivative control loop to assess the actual interface position plus the lipemia threshold to adjust and achieve a final lipemia setpoint for use during separation procedures.
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公开(公告)号：US11633524B2
公开(公告)日：2023-04-25
申请号：US16101185
申请日：2018-08-10
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Kyungyoon Min
Abstract: A computer-implemented method comprises providing a fluid circuit comprising fluid pathways configured to mount and associate with a durable processing device comprising a pressure sensor in communication with a controller and a fluid pathway. A container is connected to the pressure sensor and may receive a volume of fluid. A change in pressure values between a first and second time is measured from when the volume of fluid is not in communication with the pressure sensor to when the volume of fluid is in communication with the pressure sensor, the volume of fluid within the container or a presence or absence of a fluid connection to the fluid pathway based on the change in pressure values is determined, and a response action is executed if the volume of fluid within the container is not within an authorized volume range for the time period, or if a fluid connection is unauthorized.
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公开(公告)号：US20230003564A1
公开(公告)日：2023-01-05
申请号：US17851452
申请日：2022-06-28
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters
Abstract: An optical sensor device configured for use in combination with a fluid flowing through a tubing, the optical sensor device includes a light source configured to emit a light, with at least a portion of the light being exposed to a fluid in the tubing and reflected, an optical sensor configured to receive at least a portion of the reflected light and analyze at least a portion of the received reflected light to determine a reflectance measurement, and a controller configured to correlate the reflectance measurement to an input particulate level and generate an output indicative of the fluid flow rate corresponding to the reflectance measurement. Also disclosed is a method of optically measuring fluid flow rate in a fluid processing system including optically monitoring fluid flow through a transparent portion of a tubing by measuring light reflectance of particles in the fluid.
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Patent Agency Ranking
86.发明申请公开(公告)号：US20220334049A1
公开(公告)日：2022-10-20
申请号：US17719539
申请日：2022-04-13
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Daniel R. Boggs , James Madsen , Jeannette Wu , Matthew Fang
Abstract: An optical detection assembly for monitoring a biological fluid in a vessel includes two fluid-adjustment structures, which are spaced apart and configured to receive at least a portion of a biological fluid-containing vessel therebetween. A light source (which may be associated with one of the fluid-adjustment structures) is configured to emit light through a thickness of the biological fluid in the vessel, while a light detector (which may be associated with the other one of the fluid-adjustment structures) is configured to receive at least a portion of the light from the light source after it has passed through the biological fluid in the vessel. At least a portion of at least one of the fluid-adjustment structures is configured to move with respect to at least a portion of the other one so as to change the thickness of the biological fluid in the monitored portion of the vessel.
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公开(公告)号：US20220244193A1
公开(公告)日：2022-08-04
申请号：US17572716
申请日：2022-01-11
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters
Abstract: An umbilicus-driven centrifuge includes a yoke configured to orbit a midsection of the umbilicus around a rotational axis at a first speed so as to cause a separation chamber associated with the umbilicus to rotate about the rotational axis at a second speed that is approximately double the first speed. An optical monitoring system directly monitors the separation chamber, with a light source oriented to emit light toward the separation chamber and a light detector oriented to receive at least a portion of the light after the light has passed through the separation chamber. A controller receives a plurality of signals from the light detector, then compares the period or frequency of the signals to an expected period or frequency. The controller determines that the umbilicus is experiencing an irregularity when the period or frequency is different from the expected period or frequency.
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公开(公告)号：US11338076B2
公开(公告)日：2022-05-24
申请号：US16124796
申请日：2018-09-07
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Kyungyoon Min
Abstract: A system for controlling a fluid procedure comprising a reusable separation apparatus controlled by a microprocessing controller. A sterile circuit is configured to associate with the reusable separation apparatus and provide a first fluid flow path in association with a pressure sensor in communication with the controller and a first pump configured to transmit pulsatile pressure signals to the pressure sensor during operation in association with the first fluid flow path. The reusable apparatus and the controller are configured to receive from the pressure sensor pressure signals comprising the pulsatile pressure signals, perform a frequency analysis of the pressure signals received by the pressure sensor over a time duration, derive a first rotation rate of the first pump or a first fluid flow rate at the first pump from the frequency analysis, and provide a response action based on the first rotation rate or the first fluid flow rate.
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公开(公告)号：US20220099562A1
公开(公告)日：2022-03-31
申请号：US17487092
申请日：2021-09-28
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Ryan Murphey
Abstract: A fluid processing device includes a detection assembly having a light source, an adjustment system, and a light detector. The light source is associated with a component of the fluid processing device, provided in an initial position with respect to said component of the fluid processing device, and configured to emit a light. The adjustment system is associated with the light source and configured to adjust the position of the light source. The light detector is configured to receive at least a portion of the light from the light source and generate a signal indicative of the amount of light received by the light detector. The fluid processing device further includes a controller configured to receive the signal from the light detector and control the adjustment system to move the light source to a monitoring position based at least in part on the signal.
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公开(公告)号：US11137344B2
公开(公告)日：2021-10-05
申请号：US16686823
申请日：2019-11-18
Applicant: Fenwal, Inc.
Inventor： Benjamin E. Kusters , Kyungyoon Min
Abstract: A fluid to be optically monitored may be optically mixed to modify the apparent color perceived by a colorimetric optical sensor device. The fluid is positioned within a fluid compartment of a vessel also including a contrast compartment adjacent to the fluid compartment. The contrast compartment is configured to have a contrast color with a known main wavelength that is different from the main wavelength of the fluid color. Light from a broadband light source of the colorimetric optical sensor device is reflected off of the vessel, with the received light being received by an optical spectrometer. The optical spectrometer analyzes the received light to determine a main wavelength of the received light, followed by a controller determining a characteristic of the fluid, which is based on the main wavelengths of the received light and the contrast color and the percentage of the vessel occupied by the fluid compartment.
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