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公开(公告)号：US20220226551A1
公开(公告)日：2022-07-21
申请号：US17712986
申请日：2022-04-04
摘要： A hemodialysis system is disclosed. The hemodialysis system includes a dialyzer, a saline container including saline, and a disposable set comprising a blood pumping tube fluidly connected to a first end of the dialyzer, an arterial line fluidly connected to a first end of the blood pumping tube, a venous line fluidly connected to a second end of the dialyzer, a saline line fluidly connected to the blood pumping tube and the saline container, and a dialyzer line fluidly connected to a second end of the blood pumping tube and a second end of the dialyzer. The hemodialysis system also includes a dialysis instrument comprising an arterial line clamp, a venous line clamp, and a saline valve. The saline rinses blood out of the arterial line when the venous line clamp is closed, the arterial line clamp is opened, and the saline value is opened.
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公开(公告)号：US11291752B2
公开(公告)日：2022-04-05
申请号：US16915452
申请日：2020-06-29
摘要： A hemodialysis system is disclosed. The hemodialysis system includes a disposable set including a blood pumping tube, a fresh dialysate pumping tube, and a spent dialysate pumping tube. The hemodialysis system also includes a dialysis instrument including a blood pump head, a fresh dialysate pump head, a spent dialysate pump head, a first motor positioned and arranged to operate the blood pump head, a second motor positioned and arranged to operate the fresh dialysate pump head, and a third motor positioned and arranged to operate the spent dialysate pump head. When the disposable set is loaded into the dialysis instrument, the blood pumping tube comes into registry with the blood pump head, the fresh dialysate pumping tube comes into registry with the fresh dialysate pump head, and spent dialysate pumping tube comes into registry with the spent dialysate pump head.
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公开(公告)号：US10695479B2
公开(公告)日：2020-06-30
申请号：US15935264
申请日：2018-03-26
摘要： A method for priming a renal therapy machine is disclosed. The method includes communicating a source of a physiologically compatible solution with a blood circuit and moving the physiologically compatible solution from the source to the blood circuit. The method also includes moving the physiologically compatible solution through the blood circuit to prime the blood circuit. The method further includes moving the physiologically compatible solution from the blood circuit though porous fibers of a blood filter, causing air to be purged from the blood circuit and into a dialysis fluid circuit portion of the blood filter.
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公开(公告)号：US20180036472A1
公开(公告)日：2018-02-08
申请号：US15789535
申请日：2017-10-20
发明人： Thomas D. Kelly , Marc S. Minkus , Angelito A. Bernardo , William P. Burns , Robert W. Childers , Shincy J. Maliekkal , Matthew R. Muller , Justin B. Rohde , Michael E. Hogard
CPC分类号： A61M1/3643 , A61M1/16 , A61M1/1601 , A61M1/282 , A61M1/288 , A61M1/3624 , A61M1/3627 , A61M1/3644 , A61M1/3649 , A61M2202/02 , A61M2202/0413 , A61M2205/10 , A61M2205/3382 , A61M2205/3386 , A61M2205/75 , Y10T137/0402
摘要： Dialysis systems that remove air from a blood circuit are disclosed herein. In an embodiment, a dialysis system includes a dialysis fluid circuit, a blood circuit including an arterial line, a venous line, and an enclosure in fluid communication with the venous line, the enclosure configured to release air through a hydrophobic vent for priming the blood circuit, a blood pump configured to pump fluid through at least the arterial line, a first valve operable with the arterial line and a second valve operable with the venous line, and a pumping and valving algorithm operated after priming to remove air from the blood circuit to control the first and second valves and the blood pump to replace priming fluid with blood from a patient.
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公开(公告)号：US20190388604A1
公开(公告)日：2019-12-26
申请号：US16561966
申请日：2019-09-05
摘要： A hemodialysis system includes a dialyzer; a dialysis fluid circuit including a fresh dialysis fluid pump, and a used dialysis fluid pump; a blood circuit including a blood pump operable with an arterial line upstream of the dialyzer, a medical fluid source in fluid communication with the arterial line between a patient end of the arterial line and the blood pump, a drip chamber located along a venous line; a blood rinseback sequence wherein blood is transferred to the patient by the medical fluid, wherein the medical fluid is introduced from its source into the arterial line between an arterial line patient end and the blood pump, and flowed through the dialyzer, through the venous drip chamber along the venous line; and a blood circuit priming sequence initiated in the blood circuit via the arterial line.
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公开(公告)号：US10463778B2
公开(公告)日：2019-11-05
申请号：US15167368
申请日：2016-05-27
发明人： Rodolfo Roger , Robert Childers , Thomas D. Kelly
摘要： A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.
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公开(公告)号：US20170333612A1
公开(公告)日：2017-11-23
申请号：US15668850
申请日：2017-08-04
CPC分类号： A61M1/16 , A61M1/14 , A61M1/1601 , A61M1/1605 , A61M1/1621 , A61M1/1649 , A61M1/166 , A61M1/168 , A61M1/1686 , A61M1/1688 , A61M1/28 , A61M1/281 , A61M1/3465 , A61M1/3643 , A61M1/3644 , A61M1/3649 , A61M1/3652 , A61M2205/128 , A61M2205/3313 , A61M2205/3331 , A61M2205/3334 , A61M2205/3344 , A61M2205/3379 , A61M2205/6036 , B01D61/243 , B01D61/30 , Y10T29/49826 , Y10T137/0396 , Y10T137/87893
摘要： A renal therapy machine includes a blood filter including a plurality of porous fibers; a blood circuit in communication with the blood filter; and a dialysate circuit in communication with the blood filter and operable with at least one pump, wherein the renal therapy machine is configured to perform a priming sequence in which a physiologically compatible solution, other than dialysate, primes the blood circuit and is flowed within the fibers and through pores in the fibers of the blood filter, and the pump of the dialysate circuit vents air from the blood filter into the dialysate circuit.
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公开(公告)号：US20210322656A1
公开(公告)日：2021-10-21
申请号：US17363554
申请日：2021-06-30
发明人： Michael E. Hogard , Donald D. Busby , Robert W. Childers , Yuanpang Samuel Ding , Katherine M. Holian , Mark E. Jablonski , Thomas D. Kelly , Shincy J. Maliekkal , Rodolfo G. Roger , Donald A. Smith , Atif M. Yardimci , Ying-Cheng Lo
摘要： A system and method for balancing flows of renal replacement fluid is disclosed. The method uses pressure controls and pressure sensing devices to more precisely meter and balance the flow of fresh dialysate and spent dialysate. The balancing system may use one or two balancing devices, such as a balance tube, a tortuous path, or a balance chamber.
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公开(公告)号：US20180185564A9
公开(公告)日：2018-07-05
申请号：US15167368
申请日：2016-05-27
发明人： Rodolfo Roger , Robert Childers , Thomas D. Kelly
IPC分类号： A61M1/36
CPC分类号： A61M1/3656 , A61M2205/17 , A61M2205/18 , A61M2205/3317 , A61M2205/3375 , A61M2205/3584 , A61M2205/52 , A61M2230/005 , A61M2230/04 , A61M2230/40 , A61N1/00
摘要： A blood treatment machine includes a blood pump; an arterial line in fluid communication with the blood pump; a venous line; and a heartbeat evaluation system including (i) a first electrode coupled to the arterial line or to a patient, (ii) a second electrode coupled to the venous line, (iii) electronic circuitry communicating electrically with the first electrode and the second electrode to sense an electrical heartbeat signal generated by the patient, and (iv) signal processing configured to use the sensed heartbeat signal to calculate at least one of (a) heart rate, (b) respiration, (c) stroke volume, (d) cardiac output, or (e) central blood volume.
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公开(公告)号：US20230116321A1
公开(公告)日：2023-04-13
申请号：US18079278
申请日：2022-12-12
摘要： A hemodiafiltration system with a disposable pumping unit is disclosed. An example system includes a medical fluid pump actuator, a medical fluid heater, a blood filter and a disposable unit. The example disposable unit includes a medical fluid cassette portion including a medical fluid cassette housing configured to be operatively connected to the medical fluid pump actuator to pump medical fluid through the medical fluid cassette portion when the medical fluid cassette portion is in fluid communication with a medical fluid source. The example medical fluid cassette portion is also configured to be placed in fluid communication with the blood filter and with an extracorporeal circuit communicating with the blood filter, the fluid communication enabling hemodiafiltration to be performed. The example disposable unit also includes a heater bag configured to be placed in operable communication with the medical fluid heater and in fluid communication with the medical fluid cassette portion.
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