公开(公告)号：WO2022146690A1

公开(公告)日：2022-07-07

申请号：PCT/US2021/063458

申请日：2021-12-15

Applicant: MEDTRONIC, INC.

Inventor： YE, Hui ,  VISTE, Mark E. ,  JI, Gang ,  MUNNS, Gordon O. ,  JAIN, Gaurav ,  MCCALLA, Laura E.

IPC: H02J7/00 ,  G01R31/392 ,  H01M10/48

Abstract: At least one electrochemical cell is charged to a predetermined voltage of the electrochemical cell using an external power source. A charging current of the at least one electrochemical cell is monitored. An increase in the charging current is detected at the predetermined voltage of the at least one electrochemical cell. It is determined that the at least one electrochemical cell is in danger of experiencing a performance decrease based on the detected increase in the charging current.

公开(公告)号：WO2022140051A1

公开(公告)日：2022-06-30

申请号：PCT/US2021/062183

申请日：2021-12-07

Applicant: MEDTRONIC, INC.

Inventor： YE, Hui ,  TAMIRISA, Prabhakar A.

IPC: H02J7/00

Abstract: A charging voltage of a battery (112) is determined based on an age of the battery. The age and charging voltage can be determined by a computing apparatus (106) or a battery management system (114). The determined charging voltage increases as the age of the battery increases. The battery may be charged at the charging voltage for the duration of a charge cycle. The battery is charged using a charger (100).

公开(公告)号：WO2021167774A1

公开(公告)日：2021-08-26

申请号：PCT/US2021/016000

申请日：2021-02-01

Applicant: MEDTRONIC, INC.

Inventor： KUDLIK, D'Anne E.

IPC: A61M60/178 ,  A61M60/242 ,  A61M60/538 ,  A61M60/422 ,  A61M60/546

Abstract: A controller (18) for an implantable blood pump (10) includes processing circuitry (24) configured to initiate a suction response algorithm if a combination of a number of detected suction events multiplied by a suction event variable and a number of non- suction events multiplied by a non-suction event variable exceed a predetermined threshold.

公开(公告)号：WO2021150345A1

公开(公告)日：2021-07-29

申请号：PCT/US2020/066773

申请日：2020-12-23

Applicant: MEDTRONIC, INC.

Inventor： KUDLIK, D'Anne E.

IPC: A61M60/178 ,  A61M60/242 ,  A61M60/538 ,  A61M60/00 ,  A61M2205/3334 ,  A61M2250/00 ,  A61M60/592

Abstract: A method of determining a cumulative presence of suction in a patient having an implanted blood pump (10) including determining whether at least one suction event occurred during a predetermined time interval for a predetermined number of time intervals and determining the cumulative presence of suction by dividing a sum of a number of predetermined time intervals in which at least one suction event occurred by the predetermined number of time intervals. A control circuit (20) operating the method above is also present.

公开(公告)号：WO2021141703A1

公开(公告)日：2021-07-15

申请号：PCT/US2020/063569

申请日：2020-12-07

Applicant: HEARTWARE, INC.

Inventor： SCHAFIR, David A. ,  CASAS, Fernando

IPC: A61M60/178 ,  A61M60/232 ,  A61M60/569 ,  A61M60/81 ,  A61M60/833 ,  A61M60/857 ,  A61M60/892 ,  A61M2205/0294 ,  A61M2205/04 ,  A61M60/148 ,  A61M60/205

Abstract: An inflow cannula for an implantable blood pump, the inflow cannula defining an inlet at a proximal end, an opposite distal end, and a lumen therebetween, the inflow cannula being configured to constrict the lumen

公开(公告)号：WO2021101822A1

公开(公告)日：2021-05-27

申请号：PCT/US2020/060661

申请日：2020-11-16

Applicant: HEARTWARE, INC.

Inventor： REYES, Carlos ,  VASUDEVAN JALAJA, Neethu Lekshmi

IPC: A61M60/178 ,  A61M60/232 ,  A61M60/216 ,  A61M60/422 ,  A61M60/538 ,  A61M60/546

Abstract: A control circuit for a sensorless implantable blood pump configured to determine mitral valve regurgitation includes processing circuitry configured to generate an estimated blood flow waveform from the sensorless implanted blood pump and generate an alert if between an end period of diastole and a beginning period of systole a measured amplitude of the estimated blood flow waveform does not include an inflection point.

公开(公告)号：WO2021101705A1

公开(公告)日：2021-05-27

申请号：PCT/US2020/058762

申请日：2020-11-04

Applicant: MEDTRONIC, INC.

Inventor： GUNDERSON, Bruce D. ,  SCHEINER, Avram

IPC: A61B5/021 ,  A61B5/024 ,  A61B5/11 ,  A61B5/29

Abstract: This disclosure is directed to devices, systems, and techniques for monitoring a patient condition. In some examples, a medical device system includes processing circuitry configured to determine a plurality of pulse transit time (PTT) intervals, determine, based on an accelerometer signal, a posture of a patient from a plurality of postures corresponding to each PTT interval of the plurality of PTT intervals, classify each PTT interval of the plurality of PTT intervals based on the respective posture of the patient corresponding to the respective PTT interval, and monitor, based on the classified plurality of PTT intervals, a patient condition.

公开(公告)号：WO2021076267A1

公开(公告)日：2021-04-22

申请号：PCT/US2020/051386

申请日：2020-09-18

Applicant: HEARTWARE, INC.

Inventor： CASAS, Fernando ,  TASKIN, Mustafa E. ,  SCHAFIR, David A.

IPC: A61M1/10 ,  A61M1/12

Abstract: An implantable blood pump includes a housing defining an inlet and an outlet and a flow path therethrough. A rotor is disposed within the housing. A stator is disposed within the housing, the stator being configured to rotate the rotor when a current is applied to the stator. A volute is disposed distal to the rotor proximate the outlet, the volute including a tongue composed of a piezoelectric material.

公开(公告)号：WO2021040872A1

公开(公告)日：2021-03-04

申请号：PCT/US2020/039489

申请日：2020-06-25

Applicant: MEDTRONIC, INC.

Inventor： GUNDERSON, Bruce D.

IPC: A61B5/11 ,  A61B5/00

Abstract: A medical device system and method that includes accelerometer circuitry configured to generate at least one signal, a memory, and processing circuitry coupled to the accelerometer circuitry and the memory. The processing circuitry is configured to monitor a patient for a Sit-To-Stand transition based upon the at least one signal, detect the Sit-to-Stand transition, determine if the patient has been inactive for a predetermined period of time prior to the Sit-to-Stand transition, and if the patient has been inactive for at least the predetermined period of time prior to the Sit-to-Stand transition, determine a body stability score of the patient.

公开(公告)号：WO2021025794A1

公开(公告)日：2021-02-11

申请号：PCT/US2020/039317

申请日：2020-06-24

Applicant: MEDTRONIC, INC.

Inventor： ZHAO, Hailiang

IPC: H01M4/70 ,  A61N1/378 ,  H01M2/26

Abstract: In some examples, a battery assembly for an implantable medical device includes an electrode stack comprising a plurality of electrode plates. The plurality of electrode plates comprises a first electrode plate including a first tab extending from the first electrode plate and a second electrode plate including a second tab extending from the second electrode plate; a spacer between a first portion of the first tab and a second portion of the second tab, wherein a third portion of the first tab and a fourth portion of the second tab are joined together adjacent to the first portion, second portion, and the spacer; and a penetration weld that extends through the third portion of the first tab and the fourth portion of the second tab.