公开(公告)号：US08694102B2

公开(公告)日：2014-04-08

申请号：US13367501

申请日：2012-02-07

Applicant: Ryan A. Stevenson ,  Robert A. Stevenson

Inventor： Ryan A. Stevenson ,  Robert A. Stevenson

IPC: A61N1/00 ,  H05K9/00

CPC classification number: G21F3/00 ,  A61N1/375 ,  G21F1/085

Abstract: A radiation protected active implantable medical device includes an ionizing radiation shield disposed over at least one major surface of an electronics package, a microprocessor, or both contained within an AIMD housing. The ionizing radiation shield is made from a high atomic number, high atomic weight, high density material such as led, gold, platinum, iridium, tungsten or tantalum and has an atomic weight of at least 180 and a density of at least 11 grams per cubic centimeter. The ionizing radiation shield has a thickness of at least 0.25 millimeters and is preferably no thicker than 1.05 millimeters and has an overall attenuation of ionizing radiation of at least 0.5 HVL.

Abstract translation: 辐射防护的有源可植入医疗装置包括设置在电子封装，微处理器或包含在AIMD外壳内的两者的至少一个主表面上的电离辐射屏蔽。 电离辐射屏蔽是由高原子序数，高原子量，高密度材料如铅，金，铂，铱，钨或钽制成，原子量至少为180，密度至少为11克 立方厘米。 电离辐射屏蔽具有至少0.25毫米的厚度，并且优选地不厚于1.05毫米，并且具有至少0.5HVL的电离辐射的总体衰减。

公开(公告)号：US20120296190A1

公开(公告)日：2012-11-22

申请号：US13562169

申请日：2012-07-30

Applicant: Kishore Kumar Kondabatni ,  Warren S. Dabney ,  Robert Shawn Johnson ,  Robert A. Stevenson ,  Christine A. Frysz

Inventor： Kishore Kumar Kondabatni ,  Warren S. Dabney ,  Robert Shawn Johnson ,  Robert A. Stevenson ,  Christine A. Frysz

IPC: A61B5/055 ,  A61N1/05 ,  A61B5/04

CPC classification number: A61N1/05 ,  A61N1/086 ,  A61N1/3718 ,  H01F17/02 ,  H03H1/0007

Abstract: A multilayer helical wave filter having a primary resonance at a selected RF diagnostic or therapeutic frequency or frequency range, includes an elongated conductor forming at least a portion of an implantable medical lead. The elongated conductor includes a first helically wound segment having at least one planar surface, a first end and a second end, which forms a first inductive component, and a second helically wound segment having at least one planar surface, a first end and a second end, which forms a second inductive element. The first and second helically wound segments are wound in the same longitudinal direction and share a common longitudinal axis. Planar surfaces of the helically wound segments face one another, and a dielectric material is disposed between the facing planar surfaces of the helically wound segments and between adjacent coils of the helically wound segments, thereby forming a capacitance.

公开(公告)号：US20120265045A1

公开(公告)日：2012-10-18

申请号：US13535029

申请日：2012-06-27

Applicant: Robert A. Stevenson ,  Christine A. Frysz

Inventor： Robert A. Stevenson ,  Christine A. Frysz

IPC: A61B18/18 ,  A61B5/04 ,  A61B5/055

CPC classification number: A61B18/16 ,  A61B5/0422 ,  A61B5/055 ,  A61B5/6852 ,  A61B5/6869 ,  A61B5/7217 ,  A61B18/1492 ,  A61B2018/00541 ,  A61B2018/00839 ,  A61B2090/374 ,  A61N1/086 ,  A61N1/14 ,  B82Y30/00

Abstract: A probe or catheter to patient RF coupling for magnetic resonance imaging includes a conductive grounding strap. The strap includes a first end spaced apart from a second end, the first end configured to be permanently or removably connectable to a conductive probe or catheter housing or a conductive probe or catheter interface of a probe or catheter. A conductive patient interface is configured to be removably connectable to a portion of a patient's body and electrically conductive between the conductive grounding strap and the patient's body. The conductive patient interface is attached at the second end of the conductive grounding strap and electrically coupled to the conductive probe or catheter housing or the conductive probe or catheter interface. An electrical circuit is formed between the patient's body, the conductive patient interface, the conductive grounding strap, and the conductive probe or catheter housing or interface.

Abstract translation: 用于磁共振成像的用于患者RF耦合的探针或导管包括导电接地带。 所述带包括与第二端间隔开的第一端，所述第一端构造成永久地或可移除地连接到导电探针或导管壳体或探针或导管的导电探针或导管接口。 导电患者接口被配置为可拆卸地连接到患者身体的一部分并且在导电接地带和患者身体之间导电。 导电患者界面附接在导电接地带的第二端，并电耦合到导电探针或导管外壳或导电探针或导管接口。 在患者身体，导电患者接口，导电接地带和导电探针或导管外壳或接口之间形成电路。

公开(公告)号：US20120262250A1

公开(公告)日：2012-10-18

申请号：US13528052

申请日：2012-06-20

Applicant: Robert A. Stevenson ,  Christine A. Frysz ,  Warren A. Dabney ,  Robert Shawn Johnson

Inventor： Robert A. Stevenson ,  Christine A. Frysz ,  Warren A. Dabney ,  Robert Shawn Johnson

IPC: H03H7/00

CPC classification number: A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/375 ,  A61N1/3754 ,  A61N2001/086 ,  H01G4/06 ,  H01G4/35 ,  H01G4/40 ,  H01R13/7195 ,  H03H1/0007 ,  H03H7/1766 ,  H03H2001/0042 ,  H03H2001/0085 ,  H05K1/181 ,  H05K5/0095 ,  H05K9/00 ,  H05K2201/10015

Abstract: A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.

Abstract translation: 屏蔽三端子平通EMI /消能滤波器包括有源电极板，电路电流通过该有源电极板在第一端子和第二端子之间通过，第一屏蔽板位于有源电极板的第一侧上，第二屏蔽板 屏蔽板在与第一屏蔽板相对的有源电极板的第二侧上。 第一和第二屏蔽板导电地耦合到接地的第三端子。 在优选实施例中，有源电极板和屏蔽板至少部分地布置有可以包括柔性电缆部分，刚性电缆部分或两者的混合平整基板。

公开(公告)号：US20120253340A1

公开(公告)日：2012-10-04

申请号：US13401608

申请日：2012-02-21

Applicant: Robert A. Stevenson ,  Robert Shawn Johnson ,  Kishore Kumar Kondabatni ,  Joseph Spaulding ,  Dominick J. Frustaci ,  Warren S. Dabney ,  Holly Noelle Moschiano

Inventor： Robert A. Stevenson ,  Robert Shawn Johnson ,  Kishore Kumar Kondabatni ,  Joseph Spaulding ,  Dominick J. Frustaci ,  Warren S. Dabney ,  Holly Noelle Moschiano

IPC: A61N1/05 ,  A61B18/00

CPC classification number: H03H7/0123 ,  A61B5/042 ,  A61B5/055 ,  A61B18/1492 ,  A61B2018/00839 ,  A61B2090/374 ,  A61B2562/182 ,  A61B2562/222 ,  A61B2562/227 ,  A61N1/05 ,  A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  H03H1/0007 ,  H03H2001/0021 ,  H03H2007/013

Abstract: A composite RF current attenuator for a medical lead includes a conductor having a distal electrode contactable to biological cells, a bandstop filter in series with the lead conductor for attenuating RF currents flow through the lead conductor at a selected center frequency or across a range of frequencies about the center frequency, and a lowpass filter in series with the bandstop filter and forming a portion of the lead conductor. The bandstop filter has a capacitance in parallel with a first inductance. In a preferred form, the lowpass filter includes a second inductance in series with the bandstop filter, wherein the values of capacitance and inductances for the composite RF current attenuator are selected such that it attenuates MRI-induced RF current flow in an MRI environment.

Abstract translation: 用于医用引线的复合RF电流衰减器包括具有可与生物细胞接触的远端电极的导体，与引线导体串联的带阻滤波器，用于衰减RF电流以选定的中心频率或跨频率范围流过引线导体 关于中心频率，以及与带阻滤波器串联的低通滤波器，并形成引线导体的一部分。 带阻滤波器具有与第一电感并联的电容。 在优选形式中，低通滤波器包括与带阻滤波器串联的第二电感，其中复合RF电流衰减器的电容值和电感值被选择为使其在MRI环境中衰减MRI诱导的RF电流。

公开(公告)号：US08224462B2

公开(公告)日：2012-07-17

申请号：US13312741

申请日：2011-12-06

Applicant: Randy Westlund ,  Robert A. Stevenson ,  Christine A. Frysz ,  Warren S. Dabney ,  Henry R. Halperin

Inventor： Randy Westlund ,  Robert A. Stevenson ,  Christine A. Frysz ,  Warren S. Dabney ,  Henry R. Halperin

IPC: A61N1/00

CPC classification number: A61N1/05 ,  A61N1/0534 ,  A61N1/0539 ,  A61N1/0556 ,  A61N1/0587 ,  A61N1/086 ,  A61N2001/0585 ,  H03H1/0007 ,  H03H2001/0042 ,  H03H2001/005 ,  H03H2007/013

Abstract: Medical lead systems utilizing electromagnetic bandstop filters are provide which can be utilized in a magnetic resonance imaging (MRI) environment for patients who have implanted medical devices. The medical lead system includes an implanted lead having at least one bandstop filter associated therewith, for attenuating current flow through the lead over a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.

公开(公告)号：US08195295B2

公开(公告)日：2012-06-05

申请号：US12407402

申请日：2009-03-19

Applicant: Robert A. Stevenson ,  Buehl E. Truex ,  Richard L. Brendel ,  Christine A. Frysz ,  Warren S. Dabney ,  Haytham Hussein ,  Jose Luis Lorente Adame ,  Robert Shawn Johnson ,  Scott Brainard

Inventor： Robert A. Stevenson ,  Buehl E. Truex ,  Richard L. Brendel ,  Christine A. Frysz ,  Warren S. Dabney ,  Haytham Hussein ,  Jose Luis Lorente Adame ,  Robert Shawn Johnson ,  Scott Brainard

IPC: A61N1/375 ,  A61N1/05

CPC classification number: A61N1/08 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/375 ,  A61N1/3754 ,  A61N2001/086 ,  H01G4/06 ,  H01G4/35 ,  H01G4/40 ,  H01R13/7195 ,  H03H1/0007 ,  H03H7/1766 ,  H03H2001/0042 ,  H03H2001/0085 ,  H05K1/181 ,  H05K5/0095 ,  H05K9/00 ,  H05K2201/10015

Abstract: A shielded three-terminal flat-through EMI/energy dissipating filter includes an active electrode plate through which a circuit current passes between a first terminal and a second terminal, a first shield plate on a first side of the active electrode plate, and a second shield plate on a second side of the active electrode plate opposite the first shield plate. The first and second shield plates are conductively coupled to a grounded third terminal. In preferred embodiments, the active electrode plate and the shield plates are at least partially disposed with a hybrid flat-through substrate that may include a flex cable section, a rigid cable section, or both.

Abstract translation: 屏蔽三端子平通EMI /消能滤波器包括有源电极板，电路电流通过该有源电极板在第一端子和第二端子之间通过，第一屏蔽板位于有源电极板的第一侧上，第二屏蔽板 屏蔽板在与第一屏蔽板相对的有源电极板的第二侧上。 第一和第二屏蔽板导电地耦合到接地的第三端子。 在优选实施例中，有源电极板和屏蔽板至少部分地布置有可以包括柔性电缆部分，刚性电缆部分或两者的混合平整基板。

公开(公告)号：US20120083864A1

公开(公告)日：2012-04-05

申请号：US13299278

申请日：2011-11-17

Applicant: Randy Westlund ,  Robert A. Stevenson ,  Christine A. Frysz ,  Warren S. Dabney

Inventor： Randy Westlund ,  Robert A. Stevenson ,  Christine A. Frysz ,  Warren S. Dabney

IPC: A61N1/04

CPC classification number: A61N1/05 ,  A61N1/0534 ,  A61N1/0539 ,  A61N1/0556 ,  A61N1/0587 ,  A61N1/086 ,  A61N2001/0585 ,  H03H1/0007 ,  H03H7/0115 ,  H03H7/1766 ,  H03H2001/0085 ,  H03H2007/013

Abstract: Medical lead systems utilizing electromagnetic bandstop filters are provide which can be utilized in a magnetic resonance imaging (MRI) environment for patients who have implanted medical devices. The medical lead system includes an implanted lead having at least one bandstop filter associated therewith, for attenuating current flow through the lead over a range of frequencies. The bandstop filter has an overall circuit Q wherein the resultant 3 dB bandwidth is at least 10 kHz. The values of capacitance and inductance of the bandstop filter are selected such that the bandstop filter is resonant at a selected center frequency. Preferably, the bandstop filter has an overall circuit Q wherein the resultant 10 dB bandwidth is at least 10 kHz. Such bandstop filters are backwards compatible with known implantable deployment systems and extraction systems.

公开(公告)号：US08108042B1

公开(公告)日：2012-01-31

申请号：US13273658

申请日：2011-10-14

Applicant: Robert Shawn Johnson ,  Kishore Kumar Kondabatni ,  Christopher Michael Williams ,  Ryan Thomas Bauer ,  Scott Brainard ,  Qingshan Ye ,  Warren S. Dabney ,  Robert A. Stevenson ,  Jeff Fleigle ,  Holly Noell Moschiano

Inventor： Robert Shawn Johnson ,  Kishore Kumar Kondabatni ,  Christopher Michael Williams ,  Ryan Thomas Bauer ,  Scott Brainard ,  Qingshan Ye ,  Warren S. Dabney ,  Robert A. Stevenson ,  Jeff Fleigle ,  Holly Noell Moschiano

IPC: A61N1/00

CPC classification number: H01F27/027 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/3754 ,  H01F27/40 ,  H01F2017/065 ,  H01G4/40 ,  H03H1/0007 ,  H03H7/0115 ,  H03H2001/0042 ,  H03H2007/013

Abstract: One or more inductors and one or more capacitors are physically disposed relative to one another in series and are electrically connected to one another in parallel to form a bandstop filter. Chip inductors and chip capacitors having spaced apart conductive terminals are physically arranged in end-to-end abutting relation to minimize electrical potential between adjacent conductive terminals. The bandstop filter may be hermetically sealed within a biocompatible container for use with an implantable lead or electrode of a medical device. The values of the inductors and the capacitors are selected such that the bandstop filter is resonant at one or more selected frequencies, such as an MRI pulsed frequency.

公开(公告)号：US07983763B2

公开(公告)日：2011-07-19

申请号：US12845559

申请日：2010-07-28

Applicant: Robert A. Stevenson ,  Christine A. Frysz ,  Geddes Frank Tyers ,  Buehl E. Truex

Inventor： Robert A. Stevenson ,  Christine A. Frysz ,  Geddes Frank Tyers ,  Buehl E. Truex

IPC: A61N1/00

CPC classification number: A61N1/056 ,  A61B1/00059 ,  A61B5/0031 ,  A61B5/076 ,  A61B90/90 ,  A61B90/98 ,  A61B2562/08 ,  A61N1/086 ,  A61N1/37229 ,  A61N1/37252

Abstract: An identification device for an implantable lead includes an associated implantable sleeve and a radio frequency identification device (RFID) tag associated with the sleeve. The RFID tag includes information relating to the implantable lead, its associated lead system, or an associated implantable medical device. The RFID tag may be hermetically sealed within the sleeve and the sleeve selectively fixed along a length of the lead. The sleeve may comprise a loop forming an aperture, a crimped clamp device, a clamp device including a ratchet, clip, or rivet mechanism, or a clamp device including two separate clamshells, all of which allow for secure attachment to the lead. Alternatively, the sleeve may integrally be formed as part of the lead between a lead conductor and an insulated lumen. An external interrogator may be used for identifying information contained within the RFID tag.

Abstract translation: 用于可植入引线的识别装置包括相关联的可植入套筒和与套筒相关联的射频识别装置（RFID）标签。 RFID标签包括与可植入引线，其相关联的引导系统或相关联的可植入医疗装置有关的信息。 RFID标签可以气密地密封在套筒内并且套筒选择性地沿着铅的长度固定。 套筒可以包括形成孔的环，压接夹紧装置，包括棘轮，夹子或铆钉机构的夹紧装置或包括两个单独的蛤壳的夹紧装置，所有这些都允许牢固地连接到引线。 或者，套筒可以一体地形成为引线导体和绝缘管腔之间的引线的一部分。 外部询问器可用于识别包含在RFID标签内的信息。