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公开(公告)号：US20220133983A1
公开(公告)日：2022-05-05
申请号：US17085803
申请日：2020-10-30
申请人： CareFusion 303, Inc.
摘要： A drip chamber device may include a housing including an inlet and an outlet disposed downstream of the inlet, and a chamber defined by an inner circumferential surface of the housing. The chamber may fluidly connect the inlet with the outlet. A valve member may be disposed in the chamber to move between (i) a closed state where fluid communication between the inlet and the chamber is blocked, and (ii) an open state where fluid communication between the inlet and the chamber is not blocked, based on a level of fluid within the chamber.
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公开(公告)号：US20240091437A1
公开(公告)日：2024-03-21
申请号：US17945906
申请日：2022-09-15
申请人： CareFusion 303, Inc.
发明人： Jason Andrew WINE , Abin AUSTIN , Kanjimpuredathil Muralikrishna MENON , Narsi Reddy SANIKOMMU , Ankita JAWALE , Gene E. MASON
IPC分类号： A61M5/168
CPC分类号： A61M5/16836 , A61M2205/0294 , A61M2205/18 , A61M2205/3306 , A61M2205/3331 , A61M2230/04
摘要： A first venous rhythm of a patient is detected above a venous insertion site when a venous catheter connected to an infusion set is inserted into the venous insertion site and, concurrently with the first venous rhythm, a second venous rhythm is detected at a location remote from the venous insertion site. An irregularity between the first and second venous rhythms is identified, and a failure of the venous catheter is determined based on the identified irregularity satisfying a irregularity threshold. An alarm may be provided on detecting the irregularity or the failure of the venous catheter.
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公开(公告)号：US20230078397A1
公开(公告)日：2023-03-16
申请号：US17867266
申请日：2022-07-18
申请人： CareFusion 303, Inc.
摘要： A needle-free connector assembly is provided that includes a main housing coupled to an indicator housing. A plunger is coupled to a bellows disposed in the main housing. An inlet port is disposed at an upstream end of the indicator housing and an outlet port is disposed at a downstream end of the main housing, with a valve disposed within the indicator housing and adjacent the inlet port. A switch member is slidingly disposed in the main housing, wherein the needle-free connector assembly provides both flow regulation and pressure indication when the switch member is in a downstream position and only pressure indication when the switch member is in an upstream position. Infusion sets and methods of operating a needle-free connector are also provided.
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公开(公告)号：US20220133995A1
公开(公告)日：2022-05-05
申请号：US17085816
申请日：2020-10-30
申请人： CareFusion 303, Inc.
摘要： A system for measuring drip rate may include a drip chamber device comprising an elongated body including an inner surface defining a chamber, and a drip rate measurement device. The drip chamber may be fluidly coupled to a container containing an IV fluid configured to drip droplets of the IV fluid into the chamber. The drip rate measurement device may include a housing configured to be mounted to the elongated body of the drip chamber, and a load cell transducer mounted in the elongated body and extending into the chamber. The load cell transducer may be configured to measure a weight of the droplets of the IV fluid and convert the weight into an electrical signal. The drip rate measurement device may further include a controller electrically coupled to the load cell transducer to process the electrical signal and output at least one parameter associated with the IV fluid.
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公开(公告)号：US20240148970A1
公开(公告)日：2024-05-09
申请号：US18415390
申请日：2024-01-17
申请人： CareFusion 303, Inc.
CPC分类号： A61M5/1689 , A61M5/1411 , A61M2205/3327 , A61M2205/3334 , A61M2205/3379 , A61M2205/583
摘要： A system for measuring drip rate may include a drip chamber device comprising an elongated body including an inner surface defining a chamber, and a drip rate measurement device. The drip chamber may be fluidly coupled to a container containing an IV fluid configured to drip droplets of the IV fluid into the chamber. The drip rate measurement device may include a housing configured to be mounted to the elongated body of the drip chamber, and a load cell transducer mounted in the elongated body and extending into the chamber. The load cell transducer may be configured to measure a weight of the droplets of the IV fluid and convert the weight into an electrical signal. The drip rate measurement device may further include a controller electrically coupled to the load cell transducer to process the electrical signal and output at least one parameter associated with the IV fluid.
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公开(公告)号：US20230321425A1
公开(公告)日：2023-10-12
申请号：US18166968
申请日：2023-02-09
申请人： CareFusion 303, Inc.
发明人： Amarsinh Deeliprao JADHAV , Sumit RAJPAL , Kaushik SUMAN , Kanjimpuredathil Muralikrishna MENON , Mohammed Mehtab KHAN
IPC分类号： A61M39/22
CPC分类号： A61M39/22
摘要： Fluid connector systems that can include first and second valve assemblies that are couplable together to form a fluid pathway through the fluid connector system when the first and second valve assemblies are coupled together, and can resist fluid flow through each of the first and second valve assemblies when the first and second valve assemblies are separated from each other, where the first and second valve assemblies can include a compressible element or post positioned within a channel and configured resist fluid flow through the respective first or second valve assembly in a first position and to reduce the resistance to fluid flow through the first or second valve assembly in a second position, and the first and second valve assemblies including a sleeve and one or more arm configured to engage each other to form a snap fitting feature that can resist separation therebetween.
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公开(公告)号：US20220313904A1
公开(公告)日：2022-10-06
申请号：US17707490
申请日：2022-03-29
申请人： CareFusion 303, Inc.
摘要： A connector for coupling a container carrying a medical fluid to a vascular access device may include a housing comprising and inner surface defining an internal chamber comprising a fluid channel disposed in the internal chamber. The fluid channel may include a pair of oppositely positioned cutouts. The connector may further include a slider disposed and supported in the internal chamber and having an internal compartment and an aperture through inner walls of the internal compartment. The slider may be reciprocally movable between (i) a first position, where the aperture of the slider is axially aligned with the pair of cutouts to allow the medical fluid to flow through the outlet, and (ii) a second position where the aperture of the slider is not aligned with the pair of cutouts and the inner walls of the slider blocks fluid connection between the slider and the fluid channel.
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公开(公告)号：US20240157110A1
公开(公告)日：2024-05-16
申请号：US18470041
申请日：2023-09-19
申请人： CAREFUSION 303, INC.
CPC分类号： A61M39/1011 , G04B47/00 , G04F10/00 , A61M2039/1066
摘要： A connector assembly may include a cover defining a cavity, a luer portion extending through an open end of the cover, a proximal connector disposed at least partially in the cavity of the cover, a pusher mounted on the proximal connector, a distal connector at least partially disposed in the cover, and a stopwatch mounted on the cover and including at least one contact. The pusher may include a body portion and first and second pusher legs extending from the body portion. When the distal connector is coupled to a mating connector, the stopwatch may abut the first pusher leg such that the at least one contact is recessed within the stopwatch. When a force applied to the proximal connector exceeds a predetermined threshold the stopwatch may be separated from the first pusher leg and the at least one contact may extend proximally to activate a timer of the stopwatch.
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公开(公告)号：US20230390491A1
公开(公告)日：2023-12-07
申请号：US18087753
申请日：2022-12-22
申请人： CareFusion 303, Inc.
发明人： Mohammed Mehtab KHAN , Abin AUSTIN , Aman DESAI , Kanjimpuredathil Muralikrishna MENON , Ryan CALLAHAN
IPC分类号： A61M5/168
CPC分类号： A61M5/16831 , A61M2005/16863 , A61M2205/18
摘要： A pressure detection system includes a body having an internal chamber with input and output ports and a flexible membrane fluidically sealed to an exposed opening of the chamber to prevent a fluid passing through the chamber from passing through the exposed opening. The membrane is configured to change shape responsive to an increase in pressure caused by the fluid within the chamber satisfying a predetermined threshold. In some implementations, the membrane includes or is part of an identification mechanism which moves outwards, away from the chamber, as the pressure increases to indicate the pressure increase. In some implementations, the identification mechanism includes markings on the surface of the membrane, and an image sensing device reads the markings, and provides an indication of a current pressure associated with the fluid in the chamber based on a variation in the markings from a default state.
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公开(公告)号：US20230045614A1
公开(公告)日：2023-02-09
申请号：US17393269
申请日：2021-08-03
申请人： CareFusion 303, Inc.
摘要： Check valves are described herein. A check valve includes an inlet body, an outlet body, a valve body, a valve member, and a wiping extension. The inlet body defines an inlet portion. The outlet body defines an outlet portion. The valve body is coupled between the inlet bod and the outlet body. The valve body defines a valve cavity. The valve cavity is in fluid communication with the inlet portion and the outlet portion. The valve member is disposed within the valve cavity. The valve member is configured to permit flow from the inlet portion to the outlet portion and prevent flow from the outlet portion to the inlet portion. The wiping extension extends from the valve body toward the valve member. The wiping extension is movable relative to the valve member to dislodge particulate from the valve member.
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