公开(公告)号：US20230148931A1

公开(公告)日：2023-05-18

申请号：US17978284

申请日：2022-11-01

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  William Eastman ,  Zhongping Yang

IPC: A61B5/29 ,  A61B5/0538 ,  A61B5/02 ,  A61N1/37 ,  A61B5/361 ,  A61B5/0215

CPC classification number: A61B5/29 ,  A61B5/0538 ,  A61B5/02028 ,  A61N1/3706 ,  A61B5/361 ,  A61B5/02158

Abstract: Implantable medical devices including a transseptal lead are described herein. The transseptal lead may be positioned or placed through the interatrial septum from the right atrium to the left atrium of a patient's heart and further through the mitral valve. The transseptal lead may include at least one left atrial electrode and at least one left ventricular electrode for sensing, among other things, left atrial and left ventricular electrograms, left atrial and left ventricular impedances, and cross mitral valve impedance.

公开(公告)号：US20230001187A1

公开(公告)日：2023-01-05

申请号：US17930994

申请日：2022-09-09

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G.T. Christie ,  Paul J. DeGroot ,  Rick D. McVenes

IPC: A61N1/05 ,  A61N1/365 ,  A61N1/372 ,  A61N1/375

Abstract: Implantable leadless cardiac pacing systems and methods for providing substernal pacing using the leadless cardiac pacing systems are described. In one embodiment, an implantable leadless cardiac pacing system includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing is implanted substantially within an anterior mediastinum of a patient and the pulse generator is configured to deliver pacing pulses to a heart of the patient via a therapy vector formed between the first and second electrodes.

公开(公告)号：US11433232B2

公开(公告)日：2022-09-06

申请号：US16214882

申请日：2018-12-10

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G. T. Christie

IPC: A61N1/05 ,  A61N1/39

Abstract: Anchoring mechanisms for an implantable electrical medical lead that is positioned within a substernal space are disclosed. The anchoring mechanisms fixedly-position a distal portion of the lead, that is implanted in the substernal space.

公开(公告)号：US11134984B2

公开(公告)日：2021-10-05

申请号：US16050626

申请日：2018-07-31

Applicant: Medtronic, Inc.

Inventor： Vladimir P. Nikolski ,  Linnea R. Lentz ,  Amy E. Thompson-Nauman ,  Teresa A. Whitman ,  Mark T. Marshall

IPC: A61B5/00 ,  A61B17/34 ,  A61B17/00 ,  A61M25/00 ,  A61N1/05 ,  A61B17/32 ,  A61M25/01 ,  A61N1/39

Abstract: In some examples, a system includes a medical device comprising an elongate body configured to advance through layers of tissue of a patient, a lumen extending through the elongate body, a fluid line configured to supply fluid to the lumen, and a pressure sensor positioned within the lumen or the fluid line. The system may further include processing circuitry configured to receive, from the pressure sensor, a signal corresponding to the pressure of the fluid at each of a plurality of time points, determine, for each time point: a corresponding amplitude value of the signal, a difference between two amplitude values of the signal, an amplitude oscillation status of the signal, a position of the elongate body based on the difference and the amplitude oscillation status; and provide an indication of the position of the elongate body relative to the layers of tissue.

公开(公告)号：US11065453B2

公开(公告)日：2021-07-20

申请号：US16129833

申请日：2018-09-13

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G.T. Christie ,  Mark T. Marshall ,  Thomas H. Spear

IPC: A61N1/365 ,  A61N1/37 ,  A61N1/39

Abstract: An extra-cardiovascular medical device is configured to select a capacitor configuration from a capacitor array and deliver a low voltage, pacing pulse by discharging the selected capacitor configuration across an extra-cardiovascular pacing electrode vector. In some examples, the medical device is configured to determine the capacitor configuration based on a measured impedance of the extra-cardiovascular pacing electrode vector.

公开(公告)号：US20200289816A1

公开(公告)日：2020-09-17

申请号：US16885837

申请日：2020-05-28

Applicant: Medtronic, Inc.

Inventor： Amy E. Thompson-Nauman ,  Melissa G.T. Christie ,  Paul J. DeGroot ,  Rick D. McVenes

IPC: A61N1/05 ,  A61N1/365 ,  A61N1/372 ,  A61N1/375

Abstract: Implantable leadless cardiac pacing systems and methods for providing substernal pacing using the leadless cardiac pacing systems are described. In one embodiment, an implantable leadless cardiac pacing system includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing is implanted substantially within an anterior mediastinum of a patient and the pulse generator is configured to deliver pacing pulses to a heart of the patient via a therapy vector formed between the first and second electrodes.

公开(公告)号：US20200282203A1

公开(公告)日：2020-09-10

申请号：US16879281

申请日：2020-05-20

Applicant: Medtronic, Inc.

Inventor： Mark T. Marshall ,  Jian Cao ,  Melissa G.T. Christie ,  Paul J. DeGroot ,  Vladimir P. Nikolski ,  Amy E. Thompson-Nauman

IPC: A61N1/05 ,  A61N1/39

Abstract: Implantable medical electrical leads having electrodes arranged such that a defibrillation coil electrode and a pace/sense electrode(s) are concurrently positioned substantially over the ventricle when implanted as described. The leads include an elongated lead body having a distal portion and a proximal end, a connector at the proximal end of the lead body, a defibrillation electrode located along the distal portion of the lead body, wherein the defibrillation electrode includes a first electrode segment and a second electrode segment proximal to the first electrode segment by a distance. The leads may include at least one pace/sense electrode, which in some instances, is located between the first defibrillation electrode segment and the second defibrillation electrode segment.

公开(公告)号：US10556118B2

公开(公告)日：2020-02-11

申请号：US16132564

申请日：2018-09-17

Applicant: Medtronic, Inc.

Inventor： David A. Anderson ,  Mark T. Marshall ,  Vladimir P. Nikolski ,  Robert T. Sawchuk ,  Amy E. Thompson-Nauman ,  John D. Wahlstrand ,  Gregory A. Younker

IPC: A61N1/39 ,  A61N1/37 ,  A61N1/362 ,  A61N1/375 ,  A61N1/05

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) having a low voltage therapy module and a high voltage therapy module is configured to select, by a control module of the ICD, a pacing output configuration from at least a low-voltage pacing output configuration of the low voltage therapy module and a high-voltage pacing output configuration of the high voltage therapy module. The high voltage therapy module includes a high voltage capacitor having a first capacitance and the low voltage therapy module includes a plurality of low voltage capacitors each having up to a second capacitance that is less than the first capacitance. The ICD control module controls a respective one of the low voltage therapy module or the high voltage therapy module to deliver extra-cardiovascular pacing pulses in the selected pacing output configuration via extra-cardiovascular electrodes coupled to the ICD.

公开(公告)号：US20200038060A1

公开(公告)日：2020-02-06

申请号：US16050626

申请日：2018-07-31

Applicant: Medtronic, Inc.

Inventor： Vladimir P. Nikolski ,  Linnea R. Lentz ,  Amy E. Thompson-Nauman ,  Teresa A. Whitman ,  Mark T. Marshall

IPC: A61B17/34 ,  A61B17/00 ,  A61M25/00 ,  A61N1/05

Abstract: In some examples, a system includes a medical device comprising an elongate body configured to advance through layers of tissue of a patient, a lumen extending through the elongate body, a fluid line configured to supply fluid to the lumen, and a pressure sensor positioned within the lumen or the fluid line. The system may further include processing circuitry configured to receive, from the pressure sensor, a signal corresponding to the pressure of the fluid at each of a plurality of time points, determine, for each time point: a corresponding amplitude value of the signal, a difference between two amplitude values of the signal, an amplitude oscillation status of the signal, a position of the elongate body based on the difference and the amplitude oscillation status; and provide an indication of the position of the elongate body relative to the layers of tissue.

公开(公告)号：US10046168B2

公开(公告)日：2018-08-14

申请号：US15367448

申请日：2016-12-02

Applicant: Medtronic, Inc.

Inventor： Vladimir P. Nikolski ,  David A. Anderson ,  Mark T. Marshall ,  Robert T. Sawchuk ,  Amy E. Thompson-Nauman ,  John D. Wahlstrand ,  Gregory A. Younker

IPC: A61N1/38 ,  A61N1/39

CPC classification number: A61N1/385 ,  A61N1/3782 ,  A61N1/3925 ,  A61N1/3956 ,  A61N1/3962 ,  A61N1/3981 ,  A61N1/3987

Abstract: An extra-cardiovascular implantable cardioverter defibrillator (ICD) is configured to induce a tachyarrhythmia by charging a high voltage capacitor to a voltage amplitude and delivering a series of pulses to a patient's heart by discharging the capacitor via an extra-cardiovascular electrode vector. Delivering the series of pulses includes recharging the high-voltage capacitor during an inter-pulse interval between consecutive pulses of the series of pulses.