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公开(公告)号：US08868208B2
公开(公告)日：2014-10-21
申请号：US13755358
申请日：2013-01-31
Applicant: Medtronic, Inc.
Inventor： Kevin R. Seifert
CPC classification number: A61N1/08 , A61N1/0563 , A61N1/086 , A61N1/362 , A61N1/3962
Abstract: A medical electrical lead may include a lead body having a proximal end and a distal end, a conductive electrode shaft located near the distal end within the lead body, a coiled conductor extending within the lead body from the proximal end and coupled to a first end of the conductive electrode shaft, and an electrode located near the distal end of the lead body and coupled to an opposite end of the conductive electrode shaft as the coiled conductor. The lead may also include an energy dissipating structure located near the distal end of the lead body and formed from a conductive material that defines a lumen through which a portion of the coiled conductor extends. The portion of the coiled conductor extending through the lumen defined by the energy dissipating structure is formed to provide an interference contact with the energy dissipating structure.
Abstract translation: 医疗电引线可以包括具有近端和远端的引线主体，位于引线主体内的远端附近的导电电极轴，从所述近端延伸到所述引线主体内的线圈导体，并且连接到第一端 以及位于引线主体的远端附近的电极，并且与作为线圈导体的导电电极轴的相对端连接。 引线还可以包括位于引线本体的远端附近的能量消散结构，该导电材料由限定线圈导体的一部分延伸通过的内腔的导电材料形成。 延伸穿过由能量消散结构限定的内腔的螺旋导体的部分被形成为提供与能量消散结构的干涉接触。
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公开(公告)号：US20140257444A1
公开(公告)日：2014-09-11
申请号：US13790568
申请日：2013-03-08
Applicant: MEDTRONIC, INC.
Inventor： Mary L. Cole , Jonathan M. Edward , Kevin R. Seifert
CPC classification number: A61B90/39 , A61B2090/3966 , A61N1/08 , A61N1/086
Abstract: A radiopaque marker that includes a body being adapted to be disposed around a portion of an implantable medical lead and formed from a polymer mixed with a radiopacifier. The polymer is designed to form a symbol that identifies the implantable medical lead as being designed for safe application of a medical procedure. In some instances, the body of the radiopaque marker includes portions of varying thicknesses, the thick portions of the body being designed to form the symbol that identifies the implantable medical lead as being designed for safe application of a medical procedure such that the thick portions of the body appear more radiologically dense during an imaging procedure. In other instances, the body of the radiopaque marker may have a relatively uniform thickness and is shaped into the symbol that identifies the implantable medical lead as being designed for safe application of a medical procedure.
Abstract translation: 不透射线的标记，其包括适于被布置在可植入医用引线的一部分周围并由与放射性透光剂混合的聚合物形成的主体。 聚合物被设计成形成识别可植入医疗引线作为设计用于安全应用医疗程序的符号。 在一些情况下，不透射线标记的主体包括不同厚度的部分，身体的厚部被设计成形成识别可植入医疗引线的符号，以设计用于安全应用医疗程序，使得厚的部分 在成像过程中，身体的放射学密度更高。 在其他情况下，不透射线标记的主体可以具有相对均匀的厚度，并且被成形为识别可植入医疗引线作为设计用于安全应用医疗程序的符号。
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公开(公告)号：US20240058599A1
公开(公告)日：2024-02-22
申请号：US18499721
申请日：2023-11-01
Applicant: Medtronic, Inc.
Inventor： Mark T. Marshall , Gonzalo Martinez , Vladimir P. Nikolski , Nathan L. Olson , Kevin R. Seifert , Teresa A. Whitman
CPC classification number: A61N1/0504 , A61N1/05 , A61N1/39622 , A61N1/3962 , A61B5/287 , A61N1/0563 , A61B5/686
Abstract: This disclosure describes an implantable medical electrical lead and an ICD system utilizing the lead. The lead includes a lead body defining a proximal end and a distal portion, wherein at least a part of the distal portion of the lead body defines an undulating configuration. The lead includes a defibrillation electrode that includes a plurality of defibrillation electrode segments disposed along the undulating configuration spaced apart from one another by a distance. The lead also includes at least one electrode disposed between adjacent sections of the plurality of defibrillation sections. The at least one electrode is configured to deliver a pacing pulse to the heart and/or sense cardiac electrical activity of the heart.
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公开(公告)号：US20230330412A1
公开(公告)日：2023-10-19
申请号：US18191801
申请日：2023-03-28
Applicant: Medtronic, Inc.
Inventor： Kevin R. Seifert , Mark T. Marshall , Teresa A. Whitman , Pradipta K. Das , Andrew J. Ries
IPC: A61N1/05
CPC classification number: A61N1/057 , A61M25/10182 , A61N2001/058
Abstract: A system includes a lead with a balloon, wherein the lead defines an inflation lumen in fluid communication with the balloon. The system further includes an implantable medical device with a housing defining a fastener opening and a lead lumen. The lead lumen is configured to receive a proximal portion of the lead. The system further includes a fastener defining a fastener lumen. The fastener is configured to engage the fastener opening and the proximal portion of the lead to retain the proximal portion within the lead lumen. The fastener lumen is in fluid communication with the lead lumen and the inflation lumen, such that a pump in fluid communication with the fastener lumen inflates the balloon when the proximal portion of the lead is within the lead lumen.
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公开(公告)号：US11376039B2
公开(公告)日：2022-07-05
申请号：US15940259
申请日：2018-03-29
Applicant: Medtronic, Inc.
Inventor： Kevin R. Seifert , Vania Lee , Linda L. Franke , Lonnie D. Ronning , Dina L. Williams , Michael D. Eggen , Carla C. Pfeiffer
Abstract: A tethering assembly for securing a medical device includes a shaft and a wire that extends in sliding engagement within a proximal lumen, a channel, and a distal receptacle of the shaft. A retainer zone of the shaft, through which the channel extends, stops a transition segment of the wire, which extends between a proximal and a distal segment of the wire, from moving into the shaft receptacle, thereby restraining a distal-most tip of the wire from moving through a distal-most opening of the receptacle. When a projecting member of the device has entered a secure zone of the receptacle, via movement through the distal-most opening and a tapering passageway thereof, the distal-most tip of the wire, which may be spring-biased, can move distally into the passageway so that the tip blocks the projecting member from moving distally, back through the passageway.
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Patent Agency Ranking
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.
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公开(公告)号：US10792490B2
公开(公告)日：2020-10-06
申请号：US14193634
申请日：2014-02-28
Applicant: Medtronic, Inc.
Inventor： Kevin R. Seifert , Nathan L. Olson , Rebecca L. Poindexter
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 handle and a shaft adjacent the handle. The shaft has a proximal end, a distal end, and an open channel that extends from near the proximal end to the distal end, the open channel having a width that is greater than or equal to an outer diameter of the implantable medical lead.
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公开(公告)号：US10765858B2
公开(公告)日：2020-09-08
申请号：US14695167
申请日：2015-04-24
Applicant: Medtronic, Inc.
Inventor： Mark T. Marshall , Amy E. Thompson-Nauman , Melissa G. T. Christie , Gonzalo Martinez , Kevin R. Seifert
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.
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公开(公告)号：US10535446B2
公开(公告)日：2020-01-14
申请号：US15231485
申请日：2016-08-08
Applicant: Medtronic, Inc.
Inventor： Kevin R. Seifert , Kathleen M. Grenz
IPC: A61N1/05 , B29C65/00 , B29C65/02 , B29C65/48 , B29C65/52 , B29C65/72 , B29C48/21 , B32B37/00 , B32B1/08 , H01B7/02 , A61B5/05 , A61N1/04 , A61N1/36 , A61N1/39 , B29L23/00 , B29K627/12 , B29K627/18 , B29L31/34 , B29L31/00
Abstract: A joint between an insulative sidewall of a medical electrical lead subassembly and an underlying fluoropolymer layer includes an interfacial layer. A first section of the interfacial layer is bonded to the fluoropolymer layer and is formed by a thermoplastic fluoropolymer; a second section of the interfacial layer extends adjacent the first section and is bonded to the insulative sidewall. The insulative sidewall, of the subassembly, and the second section, of the interfacial layer, are each formed from a material that is not a fluoropolymer. A recess is formed in the first section of the interfacial layer and the second section of the interfacial layer extends within the recess.
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公开(公告)号：US20190126034A1
公开(公告)日：2019-05-02
申请号：US16171607
申请日：2018-10-26
Applicant: Medtronic, Inc.
Inventor： Ronald A. Drake , Kenneth C. Gardeski , Carla Pfeiffer , Kevin R. Seifert , Lester O. Stener , Matthew D. Bonner
Abstract: Methods and systems for positioning a leadless pacing device (LPD) in cardiac tissue are disclosed. A delivery device is employed that comprises a proximal end, a distal end and a lumen therebetween sized to receive the LPD. The LPD has a leadlet extending therefrom that includes a means to fixate the leadlet to tissue. The delivery device comprises an introducer to introduce the LPD into the lumen of the delivery device. The LPD is loaded in the distal end of the lumen of the delivery device. The leadlet extends proximally from the LPD while the fixation means extends distally toward the LPD. A LPD mover is configured to advance the LPD out of the delivery device. A leadlet mover is configured to advance the leadlet out of the lumen delivery device and cause the leadlet to engage with cardiac tissue.
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