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公开(公告)号：US20190231954A1
公开(公告)日：2019-08-01
申请号：US16382686
申请日：2019-04-12
Applicant: TC1 LLC
Inventor： Christopher J. Cotter
IPC: A61M1/10
CPC classification number: A61M1/1086 , A61M1/1005 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/1036 , A61M1/122 , A61M2205/3317 , A61M2205/3334 , A61M2205/3365 , A61M2205/8212
Abstract: Methods and apparatus for estimating flow rate in a blood circulation assist system employing impeller eccentricity. A method includes magnetically rotating an impeller within a blood flow channel of a blood pump. The impeller is levitated within the blood flow channel transverse to the impeller axis of rotation. A rotational speed for the impeller is determined. At least one impeller transverse position parameter is determined. The at least one impeller transverse position parameter is based on at least one of (1) an amount of a bearing current that is used to levitate the impeller transverse to the impeller axis of rotation, and (2) a position of the impeller within the blood flow channel transverse to the impeller axis of rotation. A flow rate of blood pumped by the blood pump is estimated based on the impeller rotational speed and the at least one impeller transverse position parameter.
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公开(公告)号：US20190209757A1
公开(公告)日：2019-07-11
申请号：US16279352
申请日：2019-02-19
Applicant: Magenta Medical Ltd.
Inventor： Yosi Tuval , Zev SOHN , Ehud Schwammenthal , Gad Lubinsky
CPC classification number: A61M1/122 , A61B5/0215 , A61B5/042 , A61M1/1008 , A61M1/1013 , A61M1/102 , A61M1/1031 , A61M1/1034 , A61M1/1036 , A61M1/1086 , A61M1/125 , A61M2205/3317 , A61M2205/3327 , A61M2205/3334 , A61M2205/3365 , A61M2205/50 , A61M2230/30 , F04D3/02 , F04D15/0066 , F04D25/02 , F04D29/041 , F04D29/042
Abstract: Apparatus and methods are described including placing, into a subject's body, a blood-pump tube, with a blood pump disposed within the blood-pump tube. At least one blood-pressure-measurement tube, which defines an opening at a distal end thereof, extends to at least an outer surface of the blood-pump tube, such that the opening at the distal end of the blood-pressure-measurement tube is in direct fluid communication with a bloodstream of the subject outside the blood-pump tube. Blood is pumped through the blood-pump tube, using the blood pump. Pressure of the bloodstream of the subject outside the blood-pump tube is measured by measuring pressure of blood within the blood-pressure-measurement tube. Other applications are also described.
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公开(公告)号：US20180311424A1
公开(公告)日：2018-11-01
申请号：US16019205
申请日：2018-06-26
Applicant: TC1 LLC
Inventor： Richard K. Wampler , David M. Lancisi
IPC: A61M1/10 , F04D29/043 , F04D29/047 , F04D29/62 , F04D29/42 , F04D13/06 , F04D1/00 , F04D29/22 , F04D29/041 , F16C32/04 , F04D29/048
CPC classification number: A61M1/1015 , A61M1/101 , A61M1/1013 , A61M1/1017 , A61M1/1031 , A61M1/1036 , A61M1/122 , F04D1/00 , F04D13/06 , F04D13/0666 , F04D29/0413 , F04D29/043 , F04D29/047 , F04D29/0473 , F04D29/048 , F04D29/22 , F04D29/426 , F04D29/628 , F16C32/044 , F16C2316/18 , Y10S415/90
Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
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公开(公告)号：US20180256795A1
公开(公告)日：2018-09-13
申请号：US15918594
申请日：2018-03-12
Applicant: TC1 LLC
Inventor： Christian Schade , Brian Kimball , Patrick Kopson
CPC classification number: A61M1/1086 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/122 , A61M2205/3334 , A61M2205/3365 , A61M2205/3523 , A61M2205/50 , A61M2205/52 , A61M2205/8206 , G06F19/00 , G16H40/40
Abstract: Methods, systems, and devices for an updatable blood pump are disclosed herein. The blood pump can be part of a mechanical circulatory support system that can include a system controller and the blood pump. The blood pump can include a rotary motor and a control unit that can communicate with the system controller. The system controller can initiate the update process and can provide the update to the blood pump. Upon initiation of the update process, the control unit can stop the rotary motor. While the rotary motor is stopped, the blood pump can be updated. At the completion of the update, the rotary pump can be restarted.
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公开(公告)号：US20180243489A1
公开(公告)日：2018-08-30
申请号：US15753134
申请日：2016-07-19
Applicant: FINEHEART
Inventor： Mohammad HADDADI
CPC classification number: A61M1/1031 , A61M1/101 , A61M1/12 , A61M1/122 , A61M2205/3365 , A61M2205/8206 , A61M2206/20 , F04D3/02 , F04D29/183 , F04D29/548
Abstract: A pump for immersion in a fluid includes—an inductor having guide vanes to induce linear fluid flow; —a rotor with a central, flared body, this rotor being downstream of the inductor relative to the direction of fluid circulation; —a helical blade provided around the central body; this helical blade having a flared external profile and having turns with an increasing winding pitch, and the internal casing volume being complementary to the flared helical blade, —a casing around the rotor; —a diffuser having blades making the flow of fluid linear and disposed downstream of the rotor to evacuate the fluid from the rotor; and—a diffuser insert having blades and an outlet orifice with a diameter less than the inlet diameter of the diffuser insert, the blades directing the fluid from the diffuser towards the orifice to increase the orifice outlet pressure.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10060843B2
公开(公告)日：2018-08-28
申请号：US15046507
申请日：2016-02-18
Applicant: Berlin Heart GmbH
Inventor： Kurt Graichen , Andreas Arndt , Peter Nuesser
CPC classification number: G01N11/16 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/1086 , A61M1/122 , A61M2205/3334 , G01N11/162
Abstract: A method and a device for the measurement of fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element (2) which is mounted in a magnet bearing (10, 10a, 11, 11a), according to the invention, envisages the delivery element (2) of the fluid pump being excited into an oscillation by way of an excitation device (16, 44), wherein the oscillation parameters as well as, as the case may be, the oscillation behavior is measured, and parameters of the fluid are determined from this.
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公开(公告)号：US20180228952A1
公开(公告)日：2018-08-16
申请号：US15891495
申请日：2018-02-08
Applicant: AIS GMBH AACHEN INNOVATIVE SOLUTIONS
Inventor： Joachim-Georg Pfeffer , Thomas Schmitz-Rode , Rolf W. Günther
CPC classification number: A61M1/1031 , A61M1/101 , A61M1/1012 , A61M1/1013 , A61M1/1024 , A61M1/1034 , A61M1/1046 , A61M1/12 , A61M1/122 , A61M1/125 , A61M25/0068 , A61M25/0069 , A61M25/0074 , A61M25/0082 , F04D3/005 , F04D3/02 , F04D29/181 , F04D29/242 , F04D29/247 , F04D29/42 , Y10S415/90
Abstract: The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like boundary frame and rotor struts extending radially inwards from the boundary frame. The rotor struts are fastened to the drive shaft by their ends opposite the boundary frame. Between the boundary frame and the drive shaft extends an elastic covering. The frame structure is made of an elastic material such that, after forced compression, the rotor unfolds automatically.
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公开(公告)号：US20180200420A1
公开(公告)日：2018-07-19
申请号：US15870119
申请日：2018-01-12
Applicant: TC1 LLC
Inventor： John Mark Di Paola , Eric Lee , John Duc Nguyen , Carine Hoarau , Yi-Ren Woo , Chris Eskildsen , Pete Cardamone , John J. Hagerty, JR.
CPC classification number: A61M1/1008 , A61M1/1031 , A61M1/1086 , A61M1/122 , A61M1/127
Abstract: Systems, methods, and devices for securing a driveline to a bone are disclosed herein. The driveline can connect an external controller to an implantable blood pump. The bone anchor can include a driveline capture portion. The driveline capture portion can receive the driveline and fix a position of the driveline with respect to the driveline capture portion. The driveline capture portion includes: a driveline receiver that can receive the driveline; and a driveline anchor that can engage the driveline to fix the position of the driveline with respect to the driveline receiver. The bone anchor can include a bone capture portion. The bone capture portion can engage a bone and fix a position of the bone with respect to the bone capture portion.
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公开(公告)号：US09956332B2
公开(公告)日：2018-05-01
申请号：US14192712
申请日：2014-02-27
Applicant: HeartWare, Inc.
Inventor： Jeffrey A. LaRose , Charles R. Shambaugh , Kartikeyan Trichi , Richard A. Marquis , Daniel G. White
IPC: A61M1/10 , A61M1/12 , F04D3/02 , F04D29/047
CPC classification number: A61M1/1036 , A61M1/1008 , A61M1/101 , A61M1/1012 , A61M1/1015 , A61M1/1017 , A61M1/1029 , A61M1/1031 , A61M1/1086 , A61M1/122 , A61M1/125 , F04D3/02 , F04D29/0476
Abstract: An axial-flow blood pump for pumping blood includes a substantially cylindrical outer enclosure. A tubular housing concentric with and located within the outer enclosure has at one end an inlet and at an opposite end an outlet. A motor stator is concentric with and located between the outer enclosure and the tubular housing. An impeller is concentric with and located within the tubular housing. The impeller is suspended in operation by a combination of passive magnetic forces between magnets within the impeller or magnetized regions of the impeller and the motor stator and hydrodynamic thrust forces generated as blood flows between the tubular housing and a plurality of hydrodynamic thrust bearing surfaces located on the impeller. A volute may be in fluid-tight connection with the outlet of the tubular housing for receiving blood in the axial direction and directing blood in a direction normal to the axial direction. The volute has a flow-improving member extending axially from the volute and into and coaxially with the tubular housing.
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公开(公告)号：US20180085509A1
公开(公告)日：2018-03-29
申请号：US15716168
申请日：2017-09-26
Applicant: TC1 LLC
Inventor： Ethan F. Petersen
CPC classification number: A61M1/127 , A61M1/101 , A61M1/1031 , A61M1/1086 , A61M1/122 , A61M2205/8206 , A61M2205/8262
Abstract: Systems and method for powering an implanted blood pump are disclosed herein. The system can be a mechanical circulatory support system. The mechanical circulatory support system can include an implantable blood pump. The implantable blood pump includes a DC powered pump control unit that can control the blood pump according to one or several stored instructions. The implantable blood pump includes a rectifier electrically connected to the pump control unit. The implantable rectifier can convert the AC to DC for powering the pump control unit. The system can include an external controller electrically connected to the rectifier. The external controller can provide AC electrical power to the implantable blood pump.
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