公开(公告)号：US10898707B2

公开(公告)日：2021-01-26

申请号：US16184596

申请日：2018-11-08

Applicant: MEDTRONIC, INC.

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

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：US10478620B2

公开(公告)日：2019-11-19

申请号：US14518261

申请日：2014-10-20

Applicant: Medtronic, Inc.

Inventor： Michael D Eggen ,  James K Carney ,  Matthew D Bonner ,  Vladimir Grubac ,  Douglas S Hine ,  Thomas D Brostrom ,  John L Sommer

IPC: A61N1/05 ,  A61N1/375

Abstract: A relatively compact implantable medical device includes a fixation member formed by a plurality of fingers mounted around a perimeter of a distal end of a housing of the device; each finger is elastically deformable from a relaxed condition to an extended condition, to accommodate delivery of the device to a target implant site, and from the relaxed condition to a compressed condition, to accommodate wedging of the fingers between opposing tissue surfaces at the target implant site, wherein the compressed fingers hold a cardiac pacing electrode of the device in intimate tissue contact for the delivery of pacing stimulation to the site. Each fixation finger is preferably configured to prevent penetration thereof within the tissue when the fingers are compressed and wedged between the opposing tissue surfaces. The pacing electrode may be mounted on a pacing extension, which extends distally from the distal end of the device housing.

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：US10118026B2

公开(公告)日：2018-11-06

申请号：US15809579

申请日：2017-11-10

Applicant: Medtronic, Inc.

Inventor： Vladimir Grubac ,  Matthew D. Bonner ,  Raymond W. Usher ,  Thomas A. Anderson ,  Arshad A. Alfoqaha

IPC: A61N1/05 ,  A61N1/375

Abstract: Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.

公开(公告)号：US20180064926A1

公开(公告)日：2018-03-08

申请号：US15809518

申请日：2017-11-10

Applicant: Medtronic, Inc.

Inventor： Vladimir Grubac ,  Matthew D. Bonner ,  Raymond W. Usher ,  Thomas A. Anderson ,  Arshad A. Alfoqaha

IPC: A61N1/05 ,  A61N1/375

CPC classification number: A61N1/05 ,  A61N1/0573 ,  A61N1/37518 ,  A61N1/3756

Abstract: Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.

公开(公告)号：US20170209689A1

公开(公告)日：2017-07-27

申请号：US15410161

申请日：2017-01-19

Applicant: Medtronic, Inc.

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

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

CPC classification number: A61N1/0573 ,  A61N1/362 ,  A61N1/37205 ,  A61N1/3756 ,  A61N2001/058

Abstract: A fixation mechanism of an implantable medical device is formed by a plurality of tines fixedly mounted around a perimeter of a distal end of the device. Each tine may be said to include a first segment fixedly attached to the device, a second segment extending from the first segment, and a third segment, to which the second segment extends. When the device is loaded in a lumen of a delivery tool and a rounded free distal end of each tine engages a sidewall that defines the lumen, to hold the tines in a spring-loaded condition, the first segment of each tine, which has a spring-biased pre-formed curvature, becomes relatively straightened, and the third segment of each tine, which is terminated by the free distal end, extends away from the axis of the device at an acute angle in a range from about 45 degrees to about 75 degrees.

公开(公告)号：US20160310747A1

公开(公告)日：2016-10-27

申请号：US14696009

申请日：2015-04-24

Applicant: Medtronic, Inc.

Inventor： Vladimir Grubac ,  Thomas A. Anderson

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

CPC classification number: A61N1/375 ,  A61B17/22031 ,  A61B17/3468 ,  A61B2017/00292 ,  A61B2017/00473 ,  A61N1/0587 ,  A61N1/362 ,  A61N1/372 ,  A61N1/37205 ,  A61N1/3756 ,  A61N2001/0578

Abstract: An assembly for tethering a medical device to a delivery catheter includes a tether, a collet, and a spring-biased holding element that is coupled to a distal end of the tether and that extends around the collet, being moveable between first and second positions. At the first position, corresponding to the spring bias thereof, the holding element prevents fingers of the collet, which are configured to grip a proximal end of the device, from opening; at the second position, the collet fingers are allowed and/or caused to open. The assembly is coupled to a tubular member of the catheter, and, when the tethering assembly abuts a distal end of the catheter tubular member, a pull force applied to a proximal end the tether, which extends out from a proximal opening of the catheter, moves the holding element from the first position to the second position.

Abstract translation: 用于将医疗装置系固到递送导管的组件包括系绳，夹头和弹簧偏压的保持元件，其联接到系绳的远端并且围绕夹头延伸，可在第一和第二位置之间移动。 在第一位置，对应于其弹簧偏置，保持元件防止被构造成夹紧装置的近端的夹头的指状物不被打开; 在第二位置，夹头指状物被允许和/或打开。 组件联接到导管的管状构件，并且当束缚组件邻接导管管状构件的远端时，施加到近端的拉力从该导管的近端开口延伸出的系绳， 将保持元件从第一位置移动到第二位置。

公开(公告)号：US20160310723A1

公开(公告)日：2016-10-27

申请号：US14696141

申请日：2015-04-24

Applicant: Medtronic, Inc.

Inventor： Michael D Eggen ,  Vladimir Grubac ,  Jean M Carver ,  Ryan Goff ,  Thomas A Anderson

IPC: A61N1/05 ,  A61M25/01 ,  A61N1/362

CPC classification number: A61N1/059 ,  A61M25/0147 ,  A61N1/057 ,  A61N1/0573 ,  A61N1/362 ,  A61N1/368 ,  A61N1/37205 ,  A61N1/3756 ,  A61N2001/058

Abstract: An implantable pacemaker system includes a housing having a proximal end and a distal end. A control electronics subassembly defines the housing proximal end, and a battery subassembly defines the housing distal end. A distal fixation member extends from the housing distal end for fixing the housing distal end at an implant site. A pacing extension extends from the housing proximal end and carries a pacing cathode electrode. The pacing extension extends the pacing cathode electrode to a pacing site that is spaced apart from the implant site when the pacemaker is deployed in a patient's body.

Abstract translation: 植入式起搏器系统包括具有近端和远端的壳体。 控制电子部件组件限定外壳近端，电池子组件限定外壳远端。 远侧固定构件从壳体远端延伸，用于将外壳远端固定在植入部位。 起搏延伸部从壳体近端延伸并承载起搏阴极电极。 当起搏器部署在患者体内时，起搏延伸部将起搏阴极电极延伸到与植入部位间隔开的起搏部位。

公开(公告)号：US20160059002A1

公开(公告)日：2016-03-03

申请号：US14518211

申请日：2014-10-20

Applicant: Medtronic, Inc.

Inventor： Vladimir Grubac ,  Thomas A Anderson ,  Jonathan L Kuhn ,  Richard W. Swenson ,  Michael P Campbell

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

CPC classification number: A61N1/057 ,  A61N1/362 ,  A61N1/3756

Abstract: A fixation member component, for example, employed by a relatively compact implantable medical device, includes a plurality of fingers; each finger includes a first segment extending from a fixed end of the corresponding finger, and a second segment extending from the corresponding first segment to a free end of the corresponding finger. Each first segment is elastically deformable from a relaxed to an extended condition, and from the relaxed to a compressed condition, and includes a peripheral portion and a central cut-out portion, framed by the peripheral portion. In the compressed condition, a free tip of the cut-out portion of some or all of the fingers may lodge against opposing tissue surfaces, via a spring force of the compressed fingers. Each second segment and cut-out portion is preferably configured to prevent penetration thereof within tissue at the implant site.

Abstract translation: 例如由相对紧凑的可植入医疗装置使用的固定构件部件包括多个手指; 每个手指包括从相应手指的固定端延伸的第一段和从对应的第一段延伸到相应手指的自由端的第二段。 每个第一段可从松弛到伸长状态弹性变形，并且从松弛到可压缩状态，并且包括由周边部分构成的周边部分和中央切口部分。 在压缩状态下，部分或全部手指的切口部分的自由尖端经由压缩手指的弹簧力抵靠在相对的组织表面上。 每个第二段和切口部分优选地构造成防止在植入部位的组织内的穿透。