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公开(公告)号：US20240263981A1
公开(公告)日：2024-08-08
申请号：US18439582
申请日：2024-02-12
Applicant: ICU Medical, Inc.
Inventor： Timothy L. Ruchti , Brian G. Markey , Anatoly S. Belkin , Paul T. Kotnik , Mohammad M. Khair
CPC classification number: G01F1/74 , A61M5/16831 , A61M5/365 , F04B43/0081 , F04B51/00 , A61M2205/331
Abstract: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
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公开(公告)号：US20230058894A1
公开(公告)日：2023-02-23
申请号：US17810541
申请日：2022-07-01
Applicant: ICU Medical, Inc.
Inventor： Timothy L. Ruchti , Brian G. Markey , Anatoly S. Belkin , Paul T. Kotnik , Mohammad M. Khair
Abstract: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
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3.发明授权公开(公告)号：US11090431B2
公开(公告)日：2021-08-17
申请号：US16823098
申请日：2020-03-18
Applicant: ICU Medical, Inc.
Inventor： John Hicks Dumas, III , Paul T. Kotnik , Kunal Sur , Anatoly S. Belkin , Timothy L. Ruchti
Abstract: To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal.
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4.发明公开公开(公告)号：US20230270938A1
公开(公告)日：2023-08-31
申请号：US18178332
申请日：2023-03-03
Applicant: ICU Medical, Inc.
Inventor： John Hicks Dumas, III , Paul T. Kotnik , Kunal Sur , Anatoly S. Belkin , Timothy L. Ruchti
CPC classification number: A61M5/16831 , A61M5/142 , A61M5/365 , G01N29/02 , G01N29/348 , G01N29/42 , H03M1/129 , A61M2205/3306 , A61M2205/3327 , A61M2205/52 , A61M2205/702 , A61M2205/3375 , G01N2291/014 , G01N2291/02433
Abstract: To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal.
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公开(公告)号：US11433177B2
公开(公告)日：2022-09-06
申请号：US16233740
申请日：2018-12-27
Applicant: ICU Medical, Inc.
Inventor： Meriyan Oruklu , Timothy L. Ruchti , Paul T. Kotnik , Anatoly S. Belkin
Abstract: In one step of a method for infusing an infusion fluid, the infusion fluid is pumped through a fluid delivery line of an infusion system. In another step, measurements are taken with at least one sensor connected to the infusion system. In an additional step, an air determination is determined with at least one processor. The air determination is related to air in the fluid delivery line. The air determination is based on the measurements taken by the at least one sensor. The air determination is further based on: (1) medication information regarding the infusion fluid or infusion information regarding the infusion of the infusion fluid; or (2) multi-channel filtering of the measurements from the at least one sensor or non-linear mapping of the measurements from the at least one sensor; and statistical process control charts applied to the multi-channel filtered measurements or applied to the non-linear mapped measurements.
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Patent Agency Ranking
公开(公告)号：US11378430B2
公开(公告)日：2022-07-05
申请号：US16806967
申请日：2020-03-02
Applicant: ICU Medical, Inc.
Inventor： Timothy L. Ruchti , Brian G. Markey , Anatoly S. Belkin , Paul T. Kotnik , Mohammad M. Khair
Abstract: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
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公开(公告)号：US20200271499A1
公开(公告)日：2020-08-27
申请号：US16806967
申请日：2020-03-02
Applicant: ICU Medical, Inc.
Inventor： Timothy L. Ruchti , Brian G. Markey , Anatoly S. Belkin , Paul T. Kotnik , Mohammad M. Khair
Abstract: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
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8.发明授权公开(公告)号：US09707341B2
公开(公告)日：2017-07-18
申请号：US14289796
申请日：2014-05-29
Applicant: ICU Medical, Inc.
Inventor： John Hicks Dumas, III , Paul T. Kotnik , Kunal Sur , Anatoly S. Belkin , Timothy L. Ruchti
IPC: G01R23/00 , G01N29/00 , G01N33/18 , A61M5/168 , A61M5/142 , A61M5/36 , G01N29/02 , G01N29/34 , G01N29/42 , H03M1/12
CPC classification number: A61M5/16831 , A61M5/142 , A61M5/365 , A61M2205/3306 , A61M2205/3327 , A61M2205/3375 , A61M2205/52 , A61M2205/702 , G01N29/02 , G01N29/348 , G01N29/42 , G01N2291/014 , G01N2291/02433 , H03M1/129
Abstract: To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal.
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公开(公告)号：US20190101425A1
公开(公告)日：2019-04-04
申请号：US16001680
申请日：2018-06-06
Applicant: ICU Medical, Inc.
Inventor： Timothy L. Ruchti , Brian G. Markey , Anatoly S. Belkin , Paul T. Kotnik , Mohammad M. Khair
CPC classification number: G01F1/74 , A61M5/16831 , A61M5/365 , A61M2205/331 , F04B43/0081 , F04B51/00
Abstract: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
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公开(公告)号：US09995611B2
公开(公告)日：2018-06-12
申请号：US13851207
申请日：2013-03-27
Applicant: ICU Medical, Inc.
Inventor： Timothy L. Ruchti , Brian G. Markey , Anatoly S. Belkin , Paul T. Kotnik , Mohammad M. Khair
CPC classification number: G01F1/74 , A61M5/16831 , A61M5/365 , A61M2205/331 , F04B43/0081 , F04B51/00
Abstract: Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
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