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公开(公告)号：US20240366931A1
公开(公告)日：2024-11-07
申请号：US18771567
申请日：2024-07-12
Applicant: Medtronic, Inc.
Inventor： Vladimir Grubac , Matthew D. Bonner , Raymond W. Usher , Thomas A. Anderson , Arshad A. Alfoqaha
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.
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公开(公告)号：US20240325730A1
公开(公告)日：2024-10-03
申请号：US18742796
申请日：2024-06-13
Applicant: Medtronic, Inc.
Inventor： Vladimir Grubac , Matthew D. Bonner , Raymond W. Usher , Thomas A. Anderson , Arshad A. Alfoqaha
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.
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公开(公告)号：US20240108885A1
公开(公告)日：2024-04-04
申请号：US18469331
申请日：2023-09-18
Applicant: Medtronic, Inc.
Inventor： Xin Chen , Vladimir Grubac , Brian P. Colin , Kathryn E. Hilpisch , Michael D. Eggen
Abstract: An example fixation component for an implantable medical device (IMD) includes a base and a plurality of tines configured be deployed with a target deployment stiffness to engage tissue a target implant site while maintaining a target deflection stiffness after deployment. The base defines a longitudinal axis of the fixation component and is fixedly attached near the distal end of the IMD. Each tine is spaced apart from one another around a perimeter of the distal end of the IMD and extend from the base. A shape of each tine is selected to control each of the target deployment stiffness and target deflection stiffness.
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公开(公告)号：US20230270999A1
公开(公告)日：2023-08-31
申请号：US18312993
申请日：2023-05-05
Applicant: Medtronic, Inc.
Inventor： Michael D. Eggen , James K. Carney , Matthew D. Bonner , Vladimir Grubac , Douglas S. Hine , Thomas D. Brostrom , John L. Sommer
CPC classification number: A61N1/057 , A61N1/3756 , A61N1/37518
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.
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公开(公告)号：US11684776B2
公开(公告)日：2023-06-27
申请号：US16990239
申请日：2020-08-11
Applicant: Medtronic, Inc.
Inventor： Vladimir Grubac , Jeffrey S. Voss
CPC classification number: A61N1/0573 , A61B5/283 , A61B5/686 , A61N1/362 , A61N2001/058
Abstract: An example fixation component for an implantable medical device (IMD) includes a base and tines extending from the base and being spaced apart from one another. The tines include a penetrator tine and a protector tine. The penetrator tine includes a curved section defining a deformable preset curvature that extends laterally from a proximal section that is fixed to the base, traversing a longitudinal axis of the fixation component, to a distal section that terminates in an incisive distal end that is configured to penetrate a tissue to form a puncture. The protector tine includes a curved section defining a deformable preset curvature that extends from a proximal section that is fixed to the base, outward from the longitudinal axis, to a distal section that terminates in a non-incisive distal end that is configured to pass through the puncture.
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Patent Agency Ranking
公开(公告)号：US20210030439A1
公开(公告)日：2021-02-04
申请号：US16921512
申请日：2020-07-06
Applicant: Medtronic, Inc.
Inventor： Ronald A. Drake , Lester O. Stener , Vladimir Grubac , Martin G. Hieb
Abstract: In some examples, a medical device delivery system includes a device cup configured to retain the medical device at the distal end of a catheter, the cup having a cylindrical body defining at least one vent hole extending from an exterior surface of the body to an interior surface of the body, and at least one internal rib extending inwardly from the interior surface, the rib configured to contact the medical device.
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公开(公告)号：US20190076646A1
公开(公告)日：2019-03-14
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.
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公开(公告)号：US10130821B2
公开(公告)日：2018-11-20
申请号：US14696009
申请日：2015-04-24
Applicant: Medtronic, Inc.
Inventor： Vladimir Grubac , Thomas A Anderson
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.
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公开(公告)号：US10071243B2
公开(公告)日：2018-09-11
申请号：US13955393
申请日：2013-07-31
Applicant: Medtronic, Inc.
Inventor： Jonathan L. Kuhn , Michael P Campbell , Vladimir Grubac , Kenneth D Rys , Richard W Swenson , Charles L Wilson
CPC classification number: A61N1/0573 , A61N1/059 , A61N1/37205 , A61N1/37518 , A61N1/3756
Abstract: A tine portion of an implantable medical device includes a hook segment and a distal segment terminated by a tissue-piercing tip, wherein the distal segment extends from a distal end of the hook segment to the tip. The hook segment, which is elastically deformable from a pre-set curvature, for example, defined by a single radius, preferably tapers from a first width thereof, in proximity to a proximal end thereof, to a smaller, second width thereof, in proximity to the distal end thereof, wherein the tip has a width that is greater than the second width of the hook segment. Alternately, the tine portion may include a hook segment that is defined by two radii and a straight section extending therebetween.
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公开(公告)号：US09675798B2
公开(公告)日：2017-06-13
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
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.
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