公开(公告)号：US11559679B2

公开(公告)日：2023-01-24

申请号：US16833748

申请日：2020-03-30

Applicant: Medtronic, Inc.

Inventor： Kevin R. Seifert ,  Maggie J. Pistella ,  Thomas D. Brostrom ,  Keith D. Anderson ,  Gareth Morgan

IPC: A61N1/05

Abstract: A fixation mechanism of an implantable lead includes a plurality of depressions of an outermost surface of the lead and a relatively flexible sleeve mounted around the outermost surface. The depressions are spaced apart from one another along a length, and each extends circumferentially, wherein a longitudinal center-to-center spacing between each adjacent depression is uniform along the length, and each depression is of substantially the same size. The sleeve has an internal surface in sliding engagement with the outermost surface of the lead, and an external surface, in which suture grooves are formed. A longitudinal center-to-center spacing between adjacent suture grooves may be substantially the same as, or a multiple of, the longitudinal center-to-center spacing between adjacent depressions of the outermost surface of the lead. The sleeve may also include a ridge protruding from the internal surface, aligned with, or offset (by center-to-center spacing of depressions) from, the grooves.

公开(公告)号：US20220401722A1

公开(公告)日：2022-12-22

申请号：US17664787

申请日：2022-05-24

Applicant: Medtronic, Inc.

Inventor： Kevin R. Seifert ,  Teresa A. Whitman ,  Jonathan E. Baxter ,  Mark T. Marshall ,  Jonathan A. Hughes

IPC: A61N1/05

Abstract: A medical lead system including an elongated lead body configured to extend through vasculature of a patient. The lead body mechanically supports a fixation member extending distal to a distal end of the lead body. A balloon is affixed to a distal portion of the lead body. The balloon is configured to inflate to extend distal to the distal end of the lead body. The fixation member is configured to extend within a distal cavity defined by the inflated balloon. The medical lead system is configured such that an electrode mechanically supported by the fixation member may electrically communicate with tissue of the patient when the balloon is in the inflated configuration.

公开(公告)号：US11000683B2

公开(公告)日：2021-05-11

申请号：US16404184

申请日：2019-05-06

Applicant: Medtronic, Inc.

Inventor： Kevin R. Seifert ,  Nathan L. Olson

IPC: A61N1/05 ,  A61M25/00 ,  A61M25/04

Abstract: An implantable medical therapy delivery device includes a non-conductive filament extending along a length of an outer surface of an insulative body of the device, wherein the filament includes a plurality of fixation projections and is secured to the outer surface of the insulative body such that the projections protrude outward from the outer surface and are spaced apart from one another along the length of the outer surface. The filament may be wound about the length with an open pitch. In some cases, the insulative body includes an open-work member forming at least a portion of the outer surface thereof, and the filament may be interlaced with the open-work member. In these cases, the filament may be bioabsorbable, for example, to provide only acute fixation via the projections thereof, while the open-work member provides a structure for tissue ingrowth and, thus, more permanent or chronic fixation.

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：US20200368519A1

公开(公告)日：2020-11-26

申请号：US16990321

申请日：2020-08-11

Applicant: Medtronic, Inc.

Inventor： Mark T. Marshall ,  Amy E. Thompson-Nauman ,  Melissa G.T. Christie ,  Gonzalo Martinez ,  Kevin R. Seifert

IPC: A61N1/05

Abstract: A lead body having a defibrillation electrode positioned along a distal portion of the lead body is described. The defibrillation electrode includes a plurality of electrode segments spaced a distance apart from each other. At least one of the plurality of defibrillation electrode segments includes at least one coated portion and at least one uncoated portion. The at least one coated portion is coated with an electrically insulating material configured to prevent transmission of a low voltage signal (e.g., a pacing pulse) while allowing transmission of a high voltage signal (e.g., a cardioversion defibrillation shock). The at least one uncoated portion is configured to transmit both low voltage and high voltage signals. The lead may also include one or more discrete electrodes proximal, distal or between the defibrillation electrode segments.

公开(公告)号：US10398471B2

公开(公告)日：2019-09-03

申请号：US15477401

申请日：2017-04-03

Applicant: Medtronic, Inc.

Inventor： Kevin R. Seifert ,  Roger A. Christopherson ,  Nathan L. Olson ,  Rebecca L. Poindexter

IPC: A61B17/34 ,  A61N1/05 ,  A61M25/06 ,  A61B17/00 ,  A61B17/32 ,  A61B90/00

Abstract: Implant tools and techniques for implantation of a medical lead, catheter or other implantable component are provided. The implant tools and techniques are particularly useful in implanting medical electrical leads in extravascular locations, including subcutaneous locations. An example implant tool for implanting a medical lead includes a rod and a sheath configured to be placed on the rod. The rod includes a handle, a shaft having a proximal end adjacent to the handle and a distal end, and an attachment feature toward the distal end of the shaft, the attachment feature configured to couple to the medical lead. The sheath is configured to be placed in multiple positions along the rod including a first position in which the sheath does not interact with the attachment feature and second position in which the sheath does interact with the attachment feature.

公开(公告)号：US10118027B2

公开(公告)日：2018-11-06

申请号：US14193573

申请日：2014-02-28

Applicant: Medtronic, Inc.

Inventor： Kevin R. Seifert ,  Nathan L. Olson ,  Rebecca L. Poindexter

IPC: A61N1/05 ,  A61B17/34

Abstract: Implant tools and techniques for implantation of a medical lead, catheter or other component are provided. The implant tools and techniques are particularly useful in implanting medical electrical leads in extravascular locations, including subcutaneous locations. An implant tool for implanting a medical lead may include a shaft having a proximal end, a distal end, an open channel that extends from near the proximal end to the distal end, and an attachment feature configured to couple to the medical lead. Such an implant tool provides a user with the versatility to use the same implant tool to either pull the lead through a tunnel formed via the implant tool or push the lead through the tunnel via the open channel in the implant tool.

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：US20150180161A1

公开(公告)日：2015-06-25

申请号：US14133899

申请日：2013-12-19

Applicant: Medtronic, Inc.

Inventor： Nathan L Olson ,  Kevin R. Seifert

IPC: H01R13/52 ,  H01R24/58

CPC classification number: H01R13/5224 ,  A61N1/05 ,  A61N1/3752 ,  H01R24/58

Abstract: A connector assembly of an implantable medical electrical lead includes insulation and conductor segments, which may be formed together in a molded subassembly. The insulation segment includes at least one sealing surface, and the conductor segment includes at least one contact surface and a shank electrically common therewith. The shank has a smaller diameter than a uniform outer diameter of the assembly, which is defined by the sealing and contact surfaces, and the smaller diameter is sized to receive a coiled proximal end of a lead conductor mounted thereabout. The connector assembly may include another conductor segment that has a third contact surface, active or inactive, extending between third and fourth sealing surfaces of another insulation segment of the assembly; if active, a distal shank of the segment is electrically common with the third contact surface, and sized to receive a coiled proximal end of another lead conductor mounted thereabout.

Abstract translation: 可植入医疗电引线的连接器组件包括绝缘和导体段，其可以一起形成在模制子组件中。 所述绝缘段包括至少一个密封表面，并且所述导体段包括至少一个接触表面和与其电气共同的柄。 柄具有比组件的均匀外径小的直径，其由密封和接触表面限定，并且较小直径的尺寸被设计成接收安装在其上的引线导体的卷绕近端。 连接器组件可以包括另一个导体段，其具有在组件的另一绝缘段的第三和第四密封表面之间延伸的有源或非活动的第三接触表面; 如果活动，则该段的远端柄与第三接触表面电气共用，并且其尺寸适于接收安装在其上的另一引线导体的盘绕近端。

公开(公告)号：US20150133954A1

公开(公告)日：2015-05-14

申请号：US14196443

申请日：2014-03-04

Applicant: Medtronic, Inc.

Inventor： Kevin R. Seifert ,  Roger A. Christopherson ,  Nathan L. Olson ,  Rebecca L. Poindexter

IPC: A61N1/05

CPC classification number: A61B17/3468 ,  A61B17/00234 ,  A61B17/32 ,  A61B17/3415 ,  A61B2017/00243 ,  A61B2017/00349 ,  A61B2017/320056 ,  A61B2090/0811 ,  A61M25/0662 ,  A61N1/0504 ,  A61N1/0563

Abstract: Implant tools and techniques for implantation of a medical lead, catheter or other implantable component are provided. The implant tools and techniques are particularly useful in implanting medical electrical leads in extravascular locations, including subcutaneous locations. An example implant tool for implanting a medical lead includes a rod and a sheath configured to be placed on the rod. The rod includes a handle, a shaft having a proximal end adjacent to the handle and a distal end, and an attachment feature toward the distal end of the shaft, the attachment feature configured to couple to the medical lead. The sheath is configured to be placed in multiple positions along the rod including a first position in which the sheath does not interact with the attachment feature and second position in which the sheath does interact with the attachment feature.

Abstract translation: 提供用于植入医疗引线，导管或其它可植入部件的植入物工具和技术。 植入物工具和技术特别适用于在包括皮下位置的血管外位置植入医疗电线。 用于植入医用引线的示例植入工具包括被配置为放置在杆上的杆和护套。 所述杆包括手柄，具有邻近所述手柄的近端的轴和远端，以及朝向所述轴的远端的附接特征，所述附接特征构造成联接到所述医疗引线。 护套被配置为沿着杆放置在多个位置，包括第一位置，在该第一位置，护套不与附接特征相互作用，而第二位置中护套确实与附接特征相互作用。