公开(公告)号：US20220133999A1

公开(公告)日：2022-05-05

申请号：US17085963

申请日：2020-10-30

Applicant: Medtronic, Inc.

Inventor： Jason C. Lee ,  Hyun J. Yoon ,  Jon E. Thissen ,  Ashley L. Galarneau ,  Randal C. Schulhauser

IPC: A61M5/172 ,  G16H40/63 ,  G06N20/00

Abstract: A system for monitoring a patient includes one or more processors and a sensor device implemented in circuitry. The system is configured to measure, using the sensor device, an impedance of tissue of the patient and determine, using one or more processors, a physiological parameter comprising at least one of a heart rate, cardiac output, vascular tone, perfusion level, fluid status, respiration effort, or respiration rate of the patient based on the impedance of the tissue of the patient. The system is configured to facilitate therapy, using the one or more processors, based on the determined physiological parameter.

公开(公告)号：US20220062515A1

公开(公告)日：2022-03-03

申请号：US17001969

申请日：2020-08-25

Applicant: Medtronic, Inc.

Inventor： Eric A. Schilling ,  David J. Peichel ,  Jason C. Lee ,  David I. Siegfried

IPC: A61M1/12

Abstract: An external power transmitter of an implanted medical device system such as a left ventricular assist device (LVAD) system and a method therefore are provided. According to one aspect, a method includes transitioning from applying a first external coil current limit to applying a second external coil current limit to limit current of an external coil coupled to the external power transmitter, the transitioning being based on at least one of an intent to enter a free mode of operation of the implanted medical device system, an existence of an alarm condition, and an existence of transcutaneous energy transfer system (TETS) power transfer.

公开(公告)号：US20220032038A1

公开(公告)日：2022-02-03

申请号：US17363065

申请日：2021-06-30

Applicant: Medtronic, Inc.

Inventor： Eric A. Schilling ,  Joel B. Artmann ,  Jason C. Lee ,  David I. Siegfried

IPC: A61M60/873 ,  A61M60/546 ,  A61M60/592 ,  A61M60/178 ,  A61M60/876

Abstract: A method of managing a speed of implantable blood pump. The implantable blood pump is in communication with an internal battery and a transcutaneous energy transfer system (TETS). The method includes starting the pump at a programmed set speed. The speed of the pump is decreased from the programmed set speed to a minimum set speed if either a capacity of the internal battery is less than a predetermined reserve level and TETS power is unavailable, or there is insufficient TETS power to maintain the programmed set speed. The speed of the pump is progressively decreased from the programmed set speed if there is insufficient power to maintain the programmed set speed.