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1.发明申请公开(公告)号：US20160175584A1
公开(公告)日：2016-06-23
申请号：US14935708
申请日：2015-11-09
Applicant: Medtronic, Inc.
Inventor： Ronald A. DRAKE , Kenneth C. GARDESKI , Zhongping YANG , Rick D. MCVENES
Abstract: A reservoir of a system for deploying an implantable lead to an extravascular location delivers a flow of fluid through a lumen of one or both of a tunneling tool and an introducer of the system. In some cases, the tunneling tool includes a pressure sensor assembly for monitoring a change in a pressure of the flow through the lumen thereof. Alternately, or in addition, a flow-controlled passageway, through which the flow of fluid from the reservoir is delivered to the lumen of the introducer, includes a compliant chamber to hold a reserve of the fluid. Fluid from the reserve may be drawn into the lumen of the introducer as the tunneling tool is withdrawn therefrom. Alternately, the introducer may include a chamber located between two seals, wherein fluid that fills the chamber is drawn distally into the lumen of the introducer, as the tunneling tool is withdrawn therefrom.
Abstract translation: 用于将可植入引线部署到血管外位置的系统的储存器通过隧道工具和系统的导引器中的一个或两个的管腔传送流体。 在一些情况下，隧道掘进工具包括用于监测通过其内腔的流动的压力变化的压力传感器组件。 或者或另外，流动控制的通道，流体从储存器流出的通道通过该流动通道包括用于保持流体储备的顺应室。 当隧道工具从其中取出时，来自储备的流体可以被吸入导引器的内腔中。 替代地，引入器可以包括位于两个密封件之间的腔室，其中填充腔室的流体被向远侧拉入导引器的内腔，因为隧道工具从其中被抽出。
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公开(公告)号：US20170319863A1
公开(公告)日：2017-11-09
申请号：US15661365
申请日：2017-07-27
Applicant: Medtronic, Inc.
Inventor： Amy E. THOMPSON-NAUMAN , Melissa G.T. CHRISTIE , Paul J. DEGROOT , Rick D. MCVENES
Abstract: Implantable cardiac systems and methods for providing substernal pacing in an ICD system are described. In one example, an implantable cardiac system comprises an ICD system and an implantable leadless pacing device (LPD) communicatively coupled to the ICD system. The ICD system includes an ICD and an implantable defibrillation lead having a proximal portion coupled to the ICD and a distal portion having a defibrillation electrode configured to deliver a defibrillation shock to a heart of the patient. The LPD includes a housing, a first electrode on the housing, a second electrode on the housing, and a pulse generator within the housing and electrically coupled to the first electrode and the second electrode. The housing of the LPD is implanted substantially within an anterior mediastinum of the patient and the pulse generator is configured to deliver pacing pulses to a heart via the first and second electrodes.
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公开(公告)号：US20190083801A1
公开(公告)日：2019-03-21
申请号：US15705690
申请日：2017-09-15
Applicant: Medtronic, Inc.
Inventor： Zhongping YANG , Thomas A. ANDERSON , Yong K. CHO , Becky L. DOLAN , Rick D. MCVENES
Abstract: An implantable medical device has a housing having a proximal end, a distal end and an outer sidewall extending from the proximal end to the distal end. A fixation sheath includes a housing sheath portion extending along the outer sidewall of the housing, and a fixation member portion extending from the housing sheath portion. The housing sheath portion is advanceable from a first position along the outer sidewall of the housing in which the fixation member portion is retracted toward the proximal end of the housing to a second position along the outer sidewall of the housing in which the fixation member portion is deployed to extend away from the housing distal end for anchoring the implantable medical device at an implant site.
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