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公开(公告)号：US12115340B2
公开(公告)日：2024-10-15
申请号：US17183177
申请日：2021-02-23
Applicant: CareFusion 303, Inc.
Inventor： Fanqing Meng , Marc Weimer
CPC classification number: A61M5/14212 , A61M5/16809 , A61M5/16881
Abstract: Pumping segments are described herein. In certain embodiments, a peristaltic pumping segment include a tubing segment, a plunger, a downstream occluder, and an upstream check valve. The plunger is movable to selectively expand the pumping volume to draw in fluid flow and contract the pumping volume to administer the fluid flow. The occluder is movable to selectively engage against the downstream portion to prevent fluid flow from the downstream portion during expansion of the pumping volume and to permit fluid flow from the pumping volume through the downstream portion during contraction of the pumping volume. The check valve outlet is in fluid communication with the pumping volume, and the valve element is configured to permit fluid flow from the valve inlet to the pumping volume during expansion of the pumping volume and to prevent fluid flow from the pumping volume to the valve inlet during contraction of the pumping volume.
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公开(公告)号：US12070578B2
公开(公告)日：2024-08-27
申请号：US16823405
申请日：2020-03-19
Applicant: CareFusion 303, Inc.
Inventor： Fanqing Meng , Marc Weimer , Daniel Kimm
CPC classification number: A61M5/16831 , A61M5/142 , A61M2005/16863 , A61M2205/18 , A61M2205/3306 , A61M2205/3327 , A61M2205/3331 , A61M2205/3334 , A61M2205/3375 , A61M2205/3576 , A61M2205/50
Abstract: Pump assemblies for fluid flow are provided. A pump assembly includes a fluid flow pump, a first tubing pathway configured to receive a fluid input tube and a second tubing pathway configured to receive a fluid output tube. A non-contact tubing dimension measurement assembly is configured to measure a tubing outside diameter (OD). Methods of operating a fluid flow pump are also provided.
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Patent Agency Ranking
公开(公告)号：US20210268173A1
公开(公告)日：2021-09-02
申请号：US17183177
申请日：2021-02-23
Applicant: CareFusion 303, Inc.
Inventor： Fanqing Meng , Marc Weimer
Abstract: Pumping segments are described herein. In certain embodiments, a peristaltic pumping segment include a tubing segment, a plunger, a downstream occluder, and an upstream check valve. The plunger is movable to selectively expand the pumping volume to draw in fluid flow and contract the pumping volume to administer the fluid flow. The occluder is movable to selectively engage against the downstream portion to prevent fluid flow from the downstream portion during expansion of the pumping volume and to permit fluid flow from the pumping volume through the downstream portion during contraction of the pumping volume. The check valve outlet is in fluid communication with the pumping volume, and the valve element is configured to permit fluid flow from the valve inlet to the pumping volume during expansion of the pumping volume and to prevent fluid flow from the pumping volume to the valve inlet during contraction of the pumping volume.
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公开(公告)号：US20250009963A1
公开(公告)日：2025-01-09
申请号：US18889215
申请日：2024-09-18
Applicant: CareFusion 303, Inc.
Inventor： Fanqing MENG , Marc Weimer
Abstract: Pumping segments are described herein. In certain embodiments, a peristaltic pumping segment include a tubing segment, a plunger, a downstream occluder, and an upstream check valve. The plunger is movable to selectively expand the pumping volume to draw in fluid flow and contract the pumping volume to administer the fluid flow. The occluder is movable to selectively engage against the downstream portion to prevent fluid flow from the downstream portion during expansion of the pumping volume and to permit fluid flow from the pumping volume through the downstream portion during contraction of the pumping volume. The check valve outlet is in fluid communication with the pumping volume, and the valve element is configured to permit fluid flow from the valve inlet to the pumping volume during expansion of the pumping volume and to prevent fluid flow from the pumping volume to the valve inlet during contraction of the pumping volume.
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公开(公告)号：US20220080086A1
公开(公告)日：2022-03-17
申请号：US17020479
申请日：2020-09-14
Applicant: CareFusion 303, Inc.
Inventor： Fanqing Meng , Marc Weimer , Shan Cheng , Lawrence Trainer
Abstract: Medical devices having an alkaline resistant halogenated polymer include a halogenated polymer incorporating one or more of a polymeric stabilizer, a polymeric plasticizer or a free radical inhibitor or combinations thereof. The medical devices can be used to administer high pH formulations to a patient in need of such administration by administering the formulation through contact the an alkaline resistant halogenated polymer.
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公开(公告)号：US20210116057A1
公开(公告)日：2021-04-22
申请号：US16656141
申请日：2019-10-17
Applicant: CAREFUSION 303, INC.
Inventor： Fanqing Meng , Marc Weimer
Abstract: Tubing, such as medical tubing for administration of intravenous fluid, can include an outer layer on an inner layer, and, optionally additional layers, in which at least the outer layer and the inner layer are made of a same polymeric material but the outer and inner layers have differing amounts or differing types of a plasticizer such that a hardness of the outer layer is greater than a hardness of the inner layer.
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公开(公告)号：US11453191B2
公开(公告)日：2022-09-27
申请号：US16656141
申请日：2019-10-17
Applicant: CAREFUSION 303, INC.
Inventor： Fanqing Meng , Marc Weimer
IPC: B32B1/08 , F16L11/10 , A61L29/06 , A61L29/08 , A61L29/12 , A61L29/14 , B32B7/022 , B32B27/08 , B32B27/18 , B32B27/20 , B32B27/22 , B32B27/30 , A61M5/14 , A61M25/00
Abstract: Tubing, such as medical tubing for administration of intravenous fluid, can include an outer layer on an inner layer, and, optionally additional layers, in which at least the outer layer and the inner layer are made of a same polymeric material but the outer and inner layers have differing amounts or differing types of a plasticizer such that a hardness of the outer layer is greater than a hardness of the inner layer.
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