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公开(公告)号：AU2018202508B2
公开(公告)日：2018-05-24
申请号：AU2018202508
申请日：2018-04-10
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , MURPHY COLIN H , GRAY LARRY B , PARKER JONATHAN , BAIER MICHAEL J , LANGENFELD CHRISTOPHER C , BIASI JOHN J , VAN DER MERWE DIRK A , BLUMBERG JR DAVID , PLACE MICHAEL S , SLATE MICHAEL J , PAWLOWSKI DANIEL F , SABIN ERIK N , NORRIS MICHAEL G , THERRIEN ALEXANDER R
Abstract: A pump for pumping fluid, the pump comprising a tube platen; a plunger configured for actuation toward and away from the tube platen when the tube platen is disposed opposite to the plunger; a bias member configured to urge the plunger toward the tube platen; an inlet 5 valve upstream of the plunger configured for actuation between an occluding position and a non-occluding position; an outlet valve downstream of the plunger configured for actuation between an occluding position and a non-occluding position; an actuator mechanism configured to control the actuation of the plunger, the inlet valve and the outlet valve, wherein the actuator mechanism is configured to mechanically engage and disengage from 10 the plunger, wherein when the actuator mechanism is disengaged from the plunger, the actuator mechanism is configured to mechanically discharge the bias member such that the plunger is a sole force driving the plunger toward the tube platen, wherein the actuator mechanism is configured to engage the plunger to lift the plunger away from the tube platen to thereby mechanically charge the bias member; a pressure sensor disposed adjacent to at 15 least one of the inlet valve, the outlet valve, and the plunger; a position sensor configured to estimate a position of the plunger; and a processor coupled to the position sensor to receive the estimated position of the plunger therefrom. The processor is configured to detect an anomaly based in part on the estimated plunger position when: the inlet valve is in the occluding position, the outlet valve is in the occluding position, the actuator mechanism is 20 mechanically disengaged from the plunger thereby making the bias member the sole source of actuation force of the plunger toward the tube platen, and the bias member urges the plunger toward the tube platen. The processor is further coupled to the pressure sensor to receive a pressure signal from the pressure sensor, the processor is configured to, using the pressure signal, to determine a downstream occlusion exists if a subtraction of a filtered 25 value of a sequential series of sequential trough-to-trough pressure values of a plurality of cycles from a trough-to-trough value is greater than a predetermined threshold. C0) C r 0)0 a)V
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公开(公告)号：AU2018201251A1
公开(公告)日：2018-03-15
申请号：AU2018201251
申请日：2018-02-21
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , GRAY LARRY B , LANGENFELD CHRISTOPHER C , SLATE MICHAEL J , PLACE MICHAEL S , MURPHY COLIN H
Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube. C17) r--
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公开(公告)号：AU2018200015B2
公开(公告)日：2018-02-22
申请号：AU2018200015
申请日：2018-01-02
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , GRAY LARRY B , LANGENFELD CHRISTOPHER C , SLATE MICHAEL J , PLACE MICHAEL S , MURPHY COLIN H
Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube. 00 a) 04 C) (.0 a) 04 c1r) CO 00 0 C) 00 qT =3 22: c1r) on x cu > a) LL cu LL > 0 CL LL a) x cu > cu cu =3 > q) LL 0 CL %4.LL a) 1:T co LL CN LO (D -0 a) a) a) CL E > E cu x W LL > D(D co 0 74 - 4-I 7 -2 L 04 LL IZT M M co CD
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公开(公告)号：NZ724959A
公开(公告)日：2017-10-27
申请号：NZ72495912
申请日：2012-12-21
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , PERET BOB D , KANE DEREK G , YOO BRIAN H , TRACEY BRIAN D , LANGENFELD CHRISTOPHER C , LANIGAN RICHARD J , KERWIN JOHN M , SLATE MICHAEL J , GRAY LARRY B , PLACE MICHAEL S , LANIER GREGORY R JR , DURAND KEVIN A , SMITH STANLEY B III , MURPHY COLIN H , SCARPACI JACOB W , BLUMBERG DAVID JR , DEMERS JASON A , BEAVIS RUSSELL H , CANNAN DAVID D B , PERRY N CHRISTOPHER , MANDRO MARC A
Abstract: A peristaltic pump (3001), and related system method are provided. The peristaltic pump pumps fluid in a cyclic manner where each cycle has four stages. The pump includes a plunger for actuating towards and away from a tube, an inlet and outlet valve, a spring for biasing the plunger towards the tube and a plunger actuator. The plunger actuator can be a cam which can engage and disengage with the plunger. In a first stage the inlet valve is opened and the plunger actuated away from the tube allowing the tube to fill from the inlet. In a second stage the inlet valve is closed and the plunger is actuated towards the tube and disengaged from the actuator. The second stage has the outlet valve closed allowing the fluid in the tube to be pressured by the spring pressure on the plunger. In a third stage the outlet valve is opened. In a fourth stage the plunger is actuated against the tube, with the outlet valve still open, allowing the fluid to be discharged out of the outlet.
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公开(公告)号：AU2017200170A1
公开(公告)日：2017-02-02
申请号：AU2017200170
申请日：2017-01-11
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , GRAY LARRY B , LANGENFELD CHRISTOPHER C , SLATE MICHAEL J , PLACE MICHAEL S , MURPHY COLIN H
Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube.
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Patent Agency Ranking
公开(公告)号：AU2012358221B2
公开(公告)日：2016-12-22
申请号：AU2012358221
申请日：2012-12-21
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , GRAY LARRY B , LANGENFELD CHRISTOPHER C , SLATE MICHAEL J , PLACE MICHAEL S , MURPHY COLIN H
Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube.
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公开(公告)号：AU2013266864A1
公开(公告)日：2014-12-11
申请号：AU2013266864
申请日：2013-03-15
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , MURPHY COLIN H , GRAY LARRY B , PARKER JONATHAN , BAIER MICHAEL J , LANGENFELD CHRISTOPHER C , BIASI JOHN J , VAN DER MERWE DIRK A , BLUMBERG DAVID , PLACE MICHAEL S , SLATE MICHAEL J , PAWLOWSKI DANIEL F , SABIN ERIK N , NORRIS MICHAEL G , THERRIEN ALEXANDER R
Abstract: A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.
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公开(公告)号：NZ756276A
公开(公告)日：2021-02-26
申请号：NZ75627612
申请日：2012-12-21
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , PERET BOB , KANE DEREK , YOO BRIAN , TRACEY BRIAN , LANGENFELD CHRISTOPHER , LANIGAN RICHARD , KERWIN JOHN , SLATE MICHAEL , GRAY LARRY B , PLACE MICHAEL S , LANIER GREGORY , DURAND KEVIN A , SMITH STANLEY , MURPHY COLIN , SCARPACI JACOB , BLUMBERG DAVID , DEMERS JASON , BEAVIS RUSSELL H , CANNAN DAVID , PERRY N CHRISTOPHER , MANDRO MARC
Abstract: A peristaltic pump is disclosed. The peristaltic pump comprises a plunger configured to engage with a tube; a spring configured to bias the plunger against the tube; a position sensor operatively coupled to the plunger; an inlet valve configured to impede fluid flow through the tube positioned upstream of the plunger; an outlet valve configured to impede fluid flow through the tube positioned downstream of the plunger; and at least one processor in operative communication with the position sensor. The position sensor is configured to determine a position of the plunger. The at least one processor is configured to monitor the position of the plunger when the inlet and outlet valves are closed and the plunger is being biased by the spring, and determine at least one of an occlusion, an air bubble, and a leak exists in accordance with the monitored position of the plunger.
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公开(公告)号：AU2018201251B2
公开(公告)日：2020-02-20
申请号：AU2018201251
申请日：2018-02-21
Applicant: DEKA PRODUCTS LP
Inventor： KAMEN DEAN , KERWIN JOHN M , GRAY LARRY B , LANGENFELD CHRISTOPHER C , SLATE MICHAEL J , PLACE MICHAEL S , MURPHY COLIN H
Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube. ccI
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公开(公告)号：NZ740655A
公开(公告)日：2019-03-29
申请号：NZ74065513
申请日：2013-03-15
Applicant: DEKA PRODUCTS LP
Inventor： PARKER JONATHAN , BAIER MICHAEL , LANGENFELD CHRISTOPHER , BIASI JOHN , VAN DER MERWE DIRK , BLUMBERG DAVID , SLATE MICHAEL , PAWLOWSKI DANIEL , SABIN ERIK , NORRIS MICHAEL , THERRIEN ALEXANDER , KAMEN DEAN , MURPHY COLIN , KERWIN JOHN , GRAY LARRY B , PLACE MICHAEL S
Abstract: A pump for pumping fluid includes a tube platen, a plunger configured for actuation toward and away from the tube platen when the tube platen is disposed opposite to the plunger, a bias member configured to urge the plunger toward the tube platen, an inlet valve upstream of the plunger configured for actuation between an occluding position and a non-occluding position, an outlet valve downstream of the plunger configured for actuation between an occluding position and a non-occluding position, an actuator mechanism configured to control the actuation of the plunger, the inlet valve and the outlet valve, a pressure sensor disposed adjacent to at least one of the inlet valve, the outlet valve, and the plunger, and a processor coupled to the pressure sensor to receive a pressure signal from the pressure sensor, wherein, the inlet valve, the outlet valve, and the plunger are configured to pump fluid in a plurality of cycles, each cycle having a trough pressure level and a peak pressure level, and the processor is configured to, using the pressure signal, determine a downstream occlusion exists when a difference between a first trough pressure level of a first cycle and a second trough pressure level of a second cycle is greater than a predetermined threshold, the first and second cycles are cycles of the plurality of cycles, and wherein the plunger is configured to engage and disengage from the actuator mechanism and the pressure sensor is configured to measure the peak pressure level after the plunger disengages from the actuator in each cycle. Such an arrangement permits a pump which provides efficient and accurate notice of downstream occlusion in order to promote patient safety.
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