公开(公告)号：US20220062516A1

公开(公告)日：2022-03-03

申请号：US17008752

申请日：2020-09-01

Applicant: Medtronic, Inc.

Inventor： David J. Peichel ,  Eric A. Schilling ,  Jonathan P. Roberts ,  Jacob A. Roe ,  Joel B. Artmann ,  Madeleine HENDERSON

IPC: A61M1/12 ,  H02J50/80 ,  H02J50/60 ,  H02J50/10

Abstract: A method of estimating power dissipated by a foreign metallic object in a transcutaneous energy transfer system (TETS) includes estimating power loss between an external coil of the TETS and an implanted coil of the TETS using a transfer function, the transfer function including inputs, the inputs including: a power supplied to the external coil, a power received by the implanted coil, a measured current within the external coil, and a carrier frequency between the external coil and the implanted coil and generating an alert if the estimated power loss between the external coil and the implanted coil exceeds a predetermined threshold.

公开(公告)号：US20210170082A1

公开(公告)日：2021-06-10

申请号：US17097375

申请日：2020-11-13

Applicant: Medtronic, Inc.

Inventor： David J. Peichel ,  Can Cinbis ,  Jonathan P. Roberts

IPC: A61M1/12 ,  H02J50/12 ,  H02J7/02 ,  H01F38/14 ,  H02J50/90

Abstract: An external power source, implantable medical device, and method for indicating an extent of power transfer between an external coil to an internal coil associated with the implantable medical device. According to one aspect, a method includes determining a parameter that depends on an extent to which the external coil is aligned with the internal coil, where the parameter includes at least one of an indication of an internal coil output power and power transfer efficiency and a resonant frequency of the external coil when inductively coupled to the internal coil. The method further includes indicating an extent to which the external coil is aligned with the internal coil based on the parameter.

公开(公告)号：US20150073228A1

公开(公告)日：2015-03-12

申请号：US14182318

申请日：2014-02-18

Applicant: Medtronic, Inc.

Inventor： Xiaonan Shen ,  Jonathan P. Roberts

IPC: H03M1/12 ,  A61B5/026 ,  A61B5/053 ,  A61B5/0476 ,  A61B5/0488 ,  A61B5/11 ,  A61B5/0215 ,  A61B5/0402

CPC classification number: H03M1/007 ,  A61B5/0031 ,  A61B5/0215 ,  A61B5/042 ,  A61B5/0428 ,  A61B5/0476 ,  A61B5/0488 ,  A61B5/0538 ,  A61B5/1118 ,  A61B2560/0209 ,  H03M1/12 ,  H03M1/462

Abstract: A medical device and associated method convert an analog signal using an adaptable bit number. The medical device includes an analog-to-digital (A/D) converter for receiving an analog signal. The A/D converter has a full scale range and a total number of bits spanning the full scale range. The A/D converter converts the analog signal to a digital signal over conversion cycles using an adaptable bit number so that on at least a portion of the conversion cycles an adapted number of bits spanning a portion of the full scale range less than the total number of bits is used by the A/D converter to convert the analog signal.

Abstract translation: 医疗设备和相关方法使用适应位数转换模拟信号。 医疗设备包括用于接收模拟信号的模数（A / D）转换器。 A / D转换器具有满量程范围，并且跨越满量程范围的总位数。 A / D转换器通过转换周期使用适应位数将模拟信号转换成数字信号，使得在至少一部分转换周期中，跨越满刻度范围的一部分的适配数量小于总数 的比特由A / D转换器用于转换模拟信号。