公开(公告)号：US20190247648A1

公开(公告)日：2019-08-15

申请号：US16392431

申请日：2019-04-23

Applicant: MEDTRONIC, INC.

Inventor： Bryan D. Stem ,  James M. Olsen

IPC: A61N1/08 ,  A61N1/05 ,  H01R43/20

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/086 ,  H01R43/20

Abstract: A shield layer is added to an existing lead or lead extension by applying the shield layer to the lead body between the proximal contact and distal electrode of the lead body. The shield layer may be covered with an outer insulative layer. An inner insulative layer may be applied over the lead body prior to adding the shield layer and the outer insulative layer. The shield layer may have a terminator applied to the end of the shield layer to prevent migration of the shield layer through the outer insulative layer. The shield layer may be of various forms including a tubular braided wire structure or a tubular foil. The tubular braided wire structure may be applied to the lead body by utilizing the lead body as a mandrel within a braiding machine.

公开(公告)号：US20170304607A1

公开(公告)日：2017-10-26

申请号：US15645904

申请日：2017-07-10

Applicant: Medtronic, Inc.

Inventor： Bryan D. Stem

IPC: A61N1/05

CPC classification number: A61N1/05 ,  A61B2562/187

Abstract: The function of a strain relief loop of an implantable medical lead is preserved by inhibiting restriction of the strain relief loop from tissue growth onto the strain relief loop. The restriction may be inhibited by either obstructing tissue growth and/or by utilizing a mechanical advantage to overcome the restriction. The tissue growth may be obstructed be isolating the interior of the strain relief loop such as by enclosing the strain relief loop or including an object within the loop. The mechanical advantage to overcome restriction from tissue growth may be provided in various ways such as utilizing a spring loaded mechanism or a structure such as an elastic mesh, tube, or mold having an inherent bias toward a steady state position.

公开(公告)号：US20170182313A1

公开(公告)日：2017-06-29

申请号：US15426051

申请日：2017-02-06

Applicant: MEDTRONIC, INC.

Inventor： Spencer M. Bondhus ,  Bryan D. Stem

IPC: A61N1/08 ,  A61N1/05

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/056 ,  A61N1/086 ,  A61N2001/0582

Abstract: Strain relief loop holders maintain the strain relief loop formed in a lead while also addressing the excessive heating at the point in the loop where the medical lead intersects with itself. The strain relief loop includes a body section that the medical lead passes through where the intersection occurs. The body section may be a thermal non-conductor and isolate from excessive heating at the intersection point or may be a thermal conductor and distribute the excessive heating. The strain relief loop may include features such as arms or a coil extending from the body segment with arm segments at the ends of the arms defining lead passageways that assist in maintaining the strain relief loop. The body segment may have a single lead passageway where the intersection point occurs or may have multiple lead passageways. The body itself may house the loop by forming a loop or a capsule.

公开(公告)号：US20150170792A1

公开(公告)日：2015-06-18

申请号：US14568547

申请日：2014-12-12

Applicant: MEDTRONIC, INC.

Inventor： Jamu K. Alford ,  Spencer M. Bondhus ,  Michael Kalm ,  James M. Olsen ,  Brian T. Stolz ,  Richard T. Stone ,  Bryan D. Stem ,  John D. Welter

IPC: H01B7/04 ,  H01B7/02

CPC classification number: A61N1/05 ,  A61N1/086

Abstract: Conductors within an implantable medical lead that carry stimulation signal signals are at least partially embedded within a lead body of the medical lead over at least a portion of the length of the conductors while being surrounded by a radio frequency (RF) shield. A space between the shield and the conductors is filled by the presence of the lead body material such that body fluids that infiltrate the lead over time cannot pool in the space between the shield and the conductors. The dielectric properties of the lead body are retained and the capacitive coupling between the shield and the conductors continues to be inhibited such that current induced on the shield is inhibited from being channeled onto the conductors. Heating at the electrodes of the medical lead is prevented from becoming excessive.

Abstract translation: 携带刺激信号信号的可植入医疗引线内的导体至少部分地被埋在导体长度的至少一部分上，同时被射频屏蔽围绕。 屏蔽体和导体之间的空间被铅体材料的存在所填充，使得随着时间渗透导线的体液不能在屏蔽体和导体之间的空间中积聚。 保持引线体的介电性能，并且屏蔽体与导体之间的电容耦合继续被抑制，使得在屏蔽上感应的电流不被引导到导体上。 防止医疗用引线的电极的加热过度。

公开(公告)号：US20150134035A1

公开(公告)日：2015-05-14

申请号：US14395195

申请日：2013-01-29

Applicant: Medtronic, Inc.

Inventor： Spencer M. Bondhus ,  Bryan D. Stem

IPC: A61N1/08 ,  A61N1/05

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/056 ,  A61N1/086 ,  A61N2001/0582

Abstract: Strain relief loop holders maintaining strain relief loop formed in a lead while also addressing excessive heating at the point in the loop where the medical lead intersects itself. The strain relief loop includes a body section that the medical lead passes through where the intersection occurs. The body section may be a thermal non-conductor and isolate from excessive heating at the intersection point or may be a thermal conductor and distribute the excessive heating. The strain relief loop may include features such as arms or a coil extending from the body segment with arm segments at the ends of the arms defining lead passageways that assist in maintaining the strain relief loop. The body segment may have a single lead passageway where the intersection point occurs or may have multiple lead passageways. The body itself may house the loop by forming a loop or a capsule.

Abstract translation: 应变消除环保持器保持形成在引线中的应变消除回路，同时还解决在医疗引线与自身相交的环路中的点处的过度加热。 应变消除回路包括医疗引线穿过相交处的主体部分。 主体部分可以是热非导体，并且与交叉点处的过度加热隔离，或者可以是热导体并且分配过多的加热。 应变释放环可以包括诸如臂或线圈的特征，该线圈从在主体段延伸的线圈延伸，臂部分限定在限定引线通道的端部，辅助维持应变释放环路。 主体段可以具有单个引线通道，其中交叉点发生或可以具有多个引线通道。 身体本身可以通过形成环或胶囊来容纳环。

公开(公告)号：US11534607B2

公开(公告)日：2022-12-27

申请号：US16392431

申请日：2019-04-23

Applicant: MEDTRONIC, INC.

Inventor： Bryan D. Stem ,  James M. Olsen

IPC: A61N1/05 ,  A61N1/08 ,  H01R43/20

Abstract: A shield layer is added to an existing lead or lead extension by applying the shield layer to the lead body between the proximal contact and distal electrode of the lead body. The shield layer may be covered with an outer insulative layer. An inner insulative layer may be applied over the lead body prior to adding the shield layer and the outer insulative layer. The shield layer may have a terminator applied to the end of the shield layer to prevent migration of the shield layer through the outer insulative layer. The shield layer may be of various forms including a tubular braided wire structure or a tubular foil. The tubular braided wire structure may be applied to the lead body by utilizing the lead body as a mandrel within a braiding machine.

公开(公告)号：US10293156B2

公开(公告)日：2019-05-21

申请号：US15910655

申请日：2018-03-02

Applicant: MEDTRONIC, INC.

Inventor： Mark J. Conroy ,  Spencer M. Bondhus ,  Bryan D. Stem

IPC: A61N1/08 ,  A61N1/37 ,  A61N1/05

Abstract: Medical lead bodies that are paired each include a braided conductive shield. The braided conductive shield of one lead body has a value for a physical parameter that differs from a value for the physical parameter of the second lead body. The difference in values of the physical parameter for the paired lead bodies results in a reduction in heating from exposure of the lead bodies to radiofrequency energy at electrodes associated with the lead bodies. The lead bodies may be paired by being implanted adjacently to one another. The lead bodies may be further paired by being coupled to a same distal body, such as a paddle containing the electrodes.

公开(公告)号：US20180185636A1

公开(公告)日：2018-07-05

申请号：US15910655

申请日：2018-03-02

Applicant: MEDTRONIC, INC.

Inventor： Mark J. Conroy ,  Spencer M. Bondhus ,  Bryan D. Stem

IPC: A61N1/08 ,  A61N1/37 ,  A61N1/05

CPC classification number: A61N1/08 ,  A61N1/05 ,  A61N1/086 ,  A61N1/3718

Abstract: Medical lead bodies that are paired each include a braided conductive shield. The braided conductive shield of one lead body has a value for a physical parameter that differs from a value for the physical parameter of the second lead body. The difference in values of the physical parameter for the paired lead bodies results in a reduction in heating from exposure of the lead bodies to radiofrequency energy at electrodes associated with the lead bodies. The lead bodies may be paired by being implanted adjacently to one another. The lead bodies may be further paired by being coupled to a same distal body, such as a paddle containing the electrodes.

公开(公告)号：US20160199639A1

公开(公告)日：2016-07-14

申请号：US14993032

申请日：2016-01-11

Applicant: MEDTRONIC, INC.

Inventor： Bryan D. Stem

IPC: A61N1/08 ,  A61N1/05

Abstract: A temperature sensor is included within a lead in proximity to distal electrodes. The temperature sensor measures temperature change at the electrode to tissue interface. Actions can be taken when the temperature exceeds a threshold due to heating from current induced by radio frequency energy from an MRI scan. The actions may include sending a signal via telemetry from the implanted device to an external device to produce an alarm to alert an MRI technician or to instruct the MRI scanner to alter the MRI scan. The actions may include activating a switch in the conduction path of an implanted lead to block some of the RF energy and/or to activate a shunt in the conduction path to divert some of the RF energy. The temperature sensor may be of various forms and may be mounted in various locations within the lead.

Abstract translation: 温度传感器包括在靠近远端电极的引线内。 温度传感器测量电极对组织界面的温度变化。 当由来自MRI扫描的射频能量引起的电流的加热导致温度超过阈值时，可采取动作。 动作可以包括通过遥测从植入装置向外部装置发送信号以产生警报以警告MRI技术人员或指示MRI扫描仪改变MRI扫描。 动作可以包括激活植入引线的传导路径中的开关以阻挡一些RF能量和/或激活导电路径中的分流以转移一些RF能量。 温度传感器可以是各种形式，并且可以安装在引线内的各种位置。

公开(公告)号：US09295829B2

公开(公告)日：2016-03-29

申请号：US14500725

申请日：2014-09-29

Applicant: MEDTRONIC, INC.

Inventor： Spencer M. Bondhus ,  Bryan D. Stem

IPC: A61N1/00 ,  A61N1/05 ,  H01R13/58 ,  A61N1/08

CPC classification number: A61N1/05 ,  A61N1/08 ,  A61N1/086 ,  H01R13/5833 ,  Y10T29/49208 ,  Y10T29/4922

Abstract: Strain relief loops are forced by being formed into medical leads such that a body of the lead imposes a force to regain the loop if the loop has been disturbed. Because the strain relief loop is forced, the surgeon implanting the medical lead is not required to create the strain relief loop as a step in the implantation procedure. Forcing the strain relief loop ensures that the strain relief is achieved. The forced strain relief loop also ensures that the loop is present to reduce heating at the electrodes of the medical caused by exposure to excessive radiofrequency energy. The forced strain relief loop may be created by heating the lead body while held in the loop configuration by a mold to cause the loop configuration to persist once the medical lead is removed from the mold.

Abstract translation: 通过形成医疗引线来强制应变消除环，使得如果环已经被干扰，引线的主体施加力以重新获得回路。 因为应变消除环被强制，所以不需要外科医生植入医用引线来创建应变消除环作为植入过程中的一个步骤。 强制应变消除环确保实现应变消除。 强制应变消除回路还确保存在环路以减少由于暴露于过高射频能量引起的医疗电极处的加热。 强制应变消除回路可以通过加热引线体而产生，同时通过模具保持在环形结构中，以使得一旦医疗引线从模具中移除就使其保持环状。