公开(公告)号：US20170043158A1

公开(公告)日：2017-02-16

申请号：US15332373

申请日：2016-10-24

Applicant: Medtronic, Inc.

Inventor： Tomas K. Kelly ,  Brendan P. Geraghty ,  Paula McDonnell ,  Francis D. McEvoy ,  Pat McHugh ,  Colin W. Meade ,  Kealan E. O'Carroll ,  Rónán Wood ,  Michael B. Sayers

IPC: A61N1/05 ,  A61M25/01

CPC classification number: A61M25/0147 ,  A61B17/32056 ,  A61N1/057 ,  A61N1/372 ,  A61N1/37205 ,  A61N1/3756 ,  A61N2001/0578

Abstract: An interventional medical system includes an elongate shaft, a steering assembly coupled to the shaft, a snare member, and a passageway configured to allow passage of the snare member therethrough and into a first longitudinally extending lumen of the shaft; wherein the passageway is spaced distally from the steering assembly actuator by no more than 3 cm to 3.5 cm, and the passageway includes an elastic sealing perimeter. The passageway may, in some cases, be formed in a tapered member of the steering assembly that couples a proximal end of the shaft to a core of the steering assembly.

Abstract translation: 介入医疗系统包括细长轴，联接到轴的转向组件，圈套构件和被配置为允许圈套构件通过并进入轴的第一纵向延伸内腔的通道; 其中所述通道与所述转向组件致动器向远侧分开不超过3cm至3.5cm，并且所述通道包括弹性密封周界。 在一些情况下，通道可以形成在转向组件的锥形构件中，该转向组件将轴的近端连接到转向组件的芯部。

公开(公告)号：US20170136231A1

公开(公告)日：2017-05-18

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: A61N1/05 ,  A61M25/01 ,  A61M25/00

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：US20170100582A1

公开(公告)日：2017-04-13

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 ,  A61N1/375 ,  A61N1/362 ,  A61N1/372

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：US20170095662A1

公开(公告)日：2017-04-06

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 ,  A61N1/372 ,  A61N1/375 ,  A61N1/05

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.