公开(公告)号：US10080888B2

公开(公告)日：2018-09-25

申请号：US14942609

申请日：2015-11-16

Applicant: Medtronic, Inc.

Inventor： Tomas K Kelly ,  Gwenda Francis ,  Brendan P Geraghty ,  Pat McHugh ,  Sean Ward

IPC: A61B19/00 ,  A61N1/05 ,  A61M25/00 ,  A61M25/01 ,  A61N1/375 ,  A61N1/372 ,  A61N1/08

CPC classification number: A61N1/059 ,  A61M25/0074 ,  A61M25/0108 ,  A61M25/0147 ,  A61N1/0573 ,  A61N1/0575 ,  A61N1/0587 ,  A61N1/086 ,  A61N1/37205 ,  A61N1/3756

Abstract: A shaft of an interventional medical system catheter has a distal end formed by opposing elastically deformable retention features that protrude into a lumen of the shaft, and that define an expandable distal opening of the lumen. The retention features secure an implantable medical device to the catheter by an interlocking engagement within a gap defined by a necked-in portion of a device holding member. Each retention feature includes a distal-facing surface defining the distal opening, and, when an elongate release member of the catheter, which extends within the shaft lumen, applies a push force against proximal-facing surfaces of the features, the distal opening expands from a constricted to an open configuration, wherein the open configuration allows passage of the device holding member through the distal opening, and the constricted configuration allows for the interlocking engagement with the device.

公开(公告)号：US09844664B2

公开(公告)日：2017-12-19

申请号：US14880371

申请日：2015-10-12

Applicant: Medtronic, Inc.

Inventor： Francis D McEvoy ,  Brendan P Geraghty ,  Paula McDonnell ,  Pat McHugh ,  Colin W Meade ,  Sean Ward ,  Rónán Wood ,  Kealan E O'Carroll ,  Tomas K Kelly ,  Gwenda Francis

IPC: A61N1/05 ,  A61N1/362 ,  A61N1/372 ,  A61N1/375 ,  A61M25/00 ,  A61B17/22

CPC classification number: A61N1/0573 ,  A61B17/22031 ,  A61B2017/00358 ,  A61B2017/22035 ,  A61M25/0074 ,  A61M2025/0004 ,  A61N1/362 ,  A61N1/37205 ,  A61N1/3756 ,  A61N2001/0578

Abstract: An engagement subassembly of a catheter, for retrieving an implanted medical device, may include at least three segments or, alternately, capture members being spring biased outward from a longitudinal axis of the subassembly, wherein a device receptacle of the catheter forces the capture members/segments, against the spring bias thereof, toward the axis. Each capture member includes a spring-biased wire and a grip, which is located between proximal and distal portions of the corresponding wire, and which is configured to interlock within a gap between a device attachment feature and housing; a length of each wire distal portion may be approximately equal to that of the device housing. An interlocking edge of each segment interlocks within the gap between the attachment feature and housing, when a distal-facing surface of each segment, which tapers outward from the axis in a distal direction, comes into confronting engagement with the device housing.

公开(公告)号：US10350408B2

公开(公告)日：2019-07-16

申请号：US15140565

申请日：2016-04-28

Applicant: Medtronic, Inc.

Inventor： Rónán Wood ,  Tomas K Kelly

IPC: A61N1/05 ,  A61B17/34 ,  A61N1/375

Abstract: A catheter inner assembly includes a receptacle with an interior contour configured to mate with a head and neck contour of a holding member of an implantable medical device; and a laterally facing opening of the receptacle has a profile matching a longitudinal profile of the head and neck. Thus, the opening allows only a properly oriented passage of the holding member therethrough, the passage being without deformation of holding member or opening. The inner assembly further includes a lock and release member useful for securing the device to the catheter, when the holding member has been passed through the receptacle's opening to mate with the receptacle's interior contour. The lock and release member may include an arcuate sidewall moveable between a first location, at which the sidewall overlays the laterally facing opening, and a second location, at which the sidewall is located proximal to the opening.

公开(公告)号：US10300287B2

公开(公告)日：2019-05-28

申请号：US15193577

申请日：2016-06-27

Applicant: Medtronic, Inc.

Inventor： Jeffrey Madden ,  Tomas K Kelly ,  John Gallagher ,  Gwenda Francis ,  Brendan Patrick Geraghty ,  Francis Denis McEvoy ,  Barry O'Connell ,  Rónán Wood

IPC: A61B17/34 ,  A61N1/362 ,  A61N1/372 ,  A61N1/375

Abstract: A delivery system for an implantable medical device includes a tool and a tethering member extending side-by-side within an inner shaft thereof; the tool extends within a first lumen, being in sliding engagement therein, and includes a distal end coupling feature that protrudes from a distal end of the inner shaft; and the tethering member has a first segment extending within a second lumen, and a second segment extending from the first segment and distally from the distal end of the inner shaft to an end of the tethering member, which is configured to engage with a holding member of the device, and with which the coupling feature of the tool is configured to couple. A retainer may be joined to another end of the tethering member that protrudes from a proximal port of the system.

公开(公告)号：US10758729B2

公开(公告)日：2020-09-01

申请号：US14872770

申请日：2015-10-01

Applicant: Medtronic, Inc.

Inventor： Paula McDonnell ,  Brendan P Geraghty ,  Gwenda Francis ,  Rónán Wood ,  Sean Ward ,  Pat McHugh ,  Tomas K Kelly

IPC: A61N1/362 ,  A61N1/375 ,  A61N1/05 ,  A61N1/372

Abstract: In a system for retrieving an implanted device, a flared inner surface of a catheter tubular sidewall may define a distal-most opening of a device receptacle; the opening has a first diameter equal to that of the receptacle, and a second diameter, coincident with a distal-most edge of the tubular sidewall, and at least 5% greater than the receptacle diameter. Alternately, a retrieval tool in sliding engagement within a lumen of a catheter includes a shaft assembly, through which a snare member passes, and which includes a collapsible spring-biased perimeter sidewall; the sidewall defines a capture member passageway approximately coaxial, and in fluid communication with a lumen of the shaft assembly. A distal-most opening of the passageway has a spring-biased diameter that is greater than that of a distal-most opening of a device receptacle of the catheter, and a collapsed diameter that is less than the receptacle distal-most opening diameter.

公开(公告)号：US10434283B2

公开(公告)日：2019-10-08

申请号：US14926827

申请日：2015-10-29

Applicant: Medtronic, Inc.

Inventor： Tomas K Kelly

IPC: A61M25/00 ,  A61N1/05 ,  A61N1/375 ,  A61N1/372 ,  A61M25/01

Abstract: In an interventional medical system, a tethering member of a catheter assembly and a holding member of a relatively compact implantable medical device are configured to interlock with one another. The tethering member includes an elongate shaft portion and a connector portion coupled to a distal end of the shaft portion, wherein the connector portion is configured to pass through a proximal-facing opening of a cavity defined by the device holding member, and to interlock with the holding member within the cavity. The connector portion of the tethering member includes a lumen extending longitudinally therethrough, which has a distal opening in fluid communication with the cavity of the device holding member, when the connector portion interlocks therewith. The catheter assembly further includes an elongate mandrel, which has a distal tip configured to extend within the lumen of the tethering member connector portion, being in sliding engagement therewith.

公开(公告)号：US09993648B2

公开(公告)日：2018-06-12

申请号：US14741656

申请日：2015-06-17

Applicant: Medtronic, Inc.

Inventor： Tomas K Kelly ,  Paula McDonnell ,  Sean Ward ,  Richard McEvoy

IPC: A61B19/00 ,  A61N1/372 ,  A61N1/05 ,  A61N1/375 ,  A61M25/01 ,  A61M25/00

CPC classification number: A61N1/372 ,  A61M25/0082 ,  A61M25/0105 ,  A61M25/0136 ,  A61M25/0147 ,  A61N1/05 ,  A61N1/0573 ,  A61N1/059 ,  A61N1/37205 ,  A61N1/375 ,  A61N1/3756 ,  A61N2001/0578

Abstract: The disclosure describes techniques and systems for delivering an implantable medical device. In one example, an implantable medical device (IMD) delivery system may include an elongated member comprising a first distal end configured to mate with the IMD, a resilient member disposed along at least a portion of the elongated member, a housing configured to accept a first proximal end of the elongated member and a second proximal end of the resilient member, a rotation control mechanism wherein user movement of the rotation control mechanism causes rotation of the elongated member with respect to the housing and a fixation element of the IMD into tissue, and a deflection control mechanism wherein user movement of the deflection control mechanism causes longitudinal displacement of the resilient member along a longitudinal axis of the elongated member and the housing resulting in angular deflection of the first distal end of the elongated member.