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：US11357484B2

公开(公告)日：2022-06-14

申请号：US15940600

申请日：2018-03-29

Applicant: Medtronic, Inc.

Inventor： Colin W. Meade ,  Paula McDonnell ,  Francis D. McEvoy ,  Rónán Wood ,  Kealan E. O'Carroll ,  Kenneth C. Gardeski ,  Ronald A. Drake ,  Kevin R. Seifert ,  Brian P. Colin ,  Pierce Vatterott

IPC: A61B17/00 ,  A61B17/34 ,  A61B17/221

Abstract: An improved assembly for securing an implantable medical device for retrieval from an implant site includes a plurality of snares, wherein distal openings of a first snare carrier lumen and a second snare carrier lumen have a pre-set offset established therebetween. First and second snare shafts, to which first and second snare loops are coupled, respectively, extend within the corresponding snare carrier lumens such that each loop is located in proximity to the corresponding distal opening of the lumen. The pre-set offset allows an operator to simultaneously position the snare loops around the device; and, when the operator retracts the snare shafts to collapse the snare loops until the loops fit snuggly around the device, the pre-set offset can help to align the device for retrieval.

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.