公开(公告)号：US10159834B2

公开(公告)日：2018-12-25

申请号：US15416282

申请日：2017-01-26

Applicant: Medtronic, Inc.

Inventor： Ronald A Drake ,  Kenneth C Gardeski ,  Carla Pfeiffer ,  Kevin R Seifert ,  Lester O Stener ,  Matthew D Bonner

IPC: A61N1/05 ,  A61N1/368 ,  A61N1/372 ,  A61N1/375

Abstract: Methods and systems for positioning a leadless pacing device (LPD) in cardiac tissue are disclosed. A delivery device is employed that comprises a proximal end, a distal end and a lumen therebetween sized to receive the LPD. The LPD has a leadlet extending therefrom that includes a means to fixate the leadlet to tissue. The delivery device comprises an introducer to introduce the LPD into the lumen of the delivery device. The LPD is loaded in the distal end of the lumen of the delivery device. The leadlet extends proximally from the LPD while the fixation means extends distally toward the LPD. A LPD mover is configured to advance the LPD out of the delivery device. A leadlet mover is configured to advance the leadlet out of the lumen delivery device and cause the leadlet to engage with cardiac tissue.

公开(公告)号：US10463853B2

公开(公告)日：2019-11-05

申请号：US15410085

申请日：2017-01-19

Applicant: Medtronic, Inc.

Inventor： Ronald A Drake ,  Xin Chen ,  Michael D Eggen ,  Matthew D Bonner ,  Vladimir Grubac ,  Brian P Colin ,  Kenneth C Gardeski ,  Kevin R Seifert

IPC: A61N1/05 ,  A61N1/368 ,  A61B5/00 ,  A61N1/375 ,  A61N1/362 ,  A61N1/372

Abstract: An implantable medical device includes ventricular and atrial portions, and a flexible leadlet that extends therebetween. An open channel of the atrial portion, formed along a core thereof, is sized to receive the leadlet therein, when the leadlet is folded over on itself. An interventional medical system includes the device and a delivery tool; a tubular sidewall of the tool defines a lumen and has a tether extending therein. A slot formed in the sidewall extends proximally from an open end thereof, coincident with a distal opening of the lumen. When the atrial portion is contained within the lumen, a segment of the leadlet extends alongside the atrial portion; another segment of the leadlet, being folded over on itself, proximal to the atrial portion, has the tether engaged therewith. The slot may allow passage of the leadlet therethrough, when the atrial portion is positioned for deployment through the distal opening.

公开(公告)号：US10143838B2

公开(公告)日：2018-12-04

申请号：US15153914

申请日：2016-05-13

Applicant: Medtronic, Inc.

Inventor： Vladimir Grubac ,  Michael D Eggen ,  Kevin R Seifert

IPC: A61N1/05

Abstract: Methods and systems of making a medical electrical lead type having a set of tines. A system for implantation of a lead medical electrical lead in contact with heart tissue, comprises an elongated lead body; a set of curved tines mounted to and extending from a distal end of the lead body, the tines having a length (dD) and an effective cross sectional area, and a delivery catheter. The delivery catheter encloses the lead body and has a distal capsule portion enclosing the tines. The tines exerting a spring force against the capsule and provide a stored potential energy. The delivery catheter has an elastic, not stiff and low column strength ejection means for advancing the lead and tines distally from the capsule and fixating the tines within the heart tissue, the controllable and the stored potential energy of the tines together provide a deployment energy. The tines when so fixated in the tissue provide a fixation energy. The deployment energy and the fixation energy of the tines are equivalent.

公开(公告)号：US09974964B2

公开(公告)日：2018-05-22

申请号：US14797651

申请日：2015-07-13

Applicant: Medtronic, Inc.

Inventor： Gonzalo Martinez ,  Mark T Marshall ,  Kevin R Seifert

IPC: A61N1/00 ,  A61N1/37 ,  A61N1/39 ,  A61N1/365 ,  A61N1/362 ,  A61N1/368 ,  A61N1/04 ,  A61N1/08 ,  A61B5/0215 ,  A61N1/05

CPC classification number: A61N1/3712 ,  A61B5/0215 ,  A61B2560/0276 ,  A61N1/04 ,  A61N1/0563 ,  A61N1/3628 ,  A61N1/36592 ,  A61N1/368 ,  A61N1/3706 ,  A61N1/3931 ,  A61N1/3937 ,  A61N1/3962 ,  A61N2001/0585 ,  A61N2001/083

Abstract: The disclosure describes implantable medical systems that respond to occurrence of a lead-related condition by utilizing an elongated coil electrode in defining an alternative pacing therapy vector to maintain optimal drain of an IMD power supply. An exemplary system includes a medical electrical lead having an elongated electrode and an improved sensing and therapy delivery circuitry to provide the alternative pacing therapy vector responsive to the lead-related conditions. The system reconfigures the operation of the sensing and therapy delivery circuitry triggered by the switch to the alternative pacing therapy vector.

公开(公告)号：US20170209690A1

公开(公告)日：2017-07-27

申请号：US15416282

申请日：2017-01-26

Applicant: Medtronic, Inc.

Inventor： Ronald A Drake ,  Kenneth C Gardeski ,  Carla Pfeiffer ,  Kevin R Seifert ,  Lester O Stener ,  Matthew D Bonner

IPC: A61N1/05 ,  A61N1/368 ,  A61N1/372

CPC classification number: A61N1/0573 ,  A61N1/3688 ,  A61N1/37205 ,  A61N1/3756 ,  A61N2001/0578 ,  A61N2001/058

Abstract: Methods and systems for positioning a leadless pacing device (LPD) in cardiac tissue are disclosed. A delivery device is employed that comprises a proximal end, a distal end and a lumen therebetween sized to receive the LPD. The LPD has a leadlet extending therefrom that includes a means to fixate the leadlet to tissue. The delivery device comprises an introducer to introduce the LPD into the lumen of the delivery device. The LPD is loaded in the distal end of the lumen of the delivery device. The leadlet extends proximally from the LPD while the fixation means extends distally toward the LPD. A LPD mover is configured to advance the LPD out of the delivery device. A leadlet mover is configured to advance the leadlet out of the lumen delivery device and cause the leadlet to engage with cardiac tissue.