公开(公告)号：US20190184181A1

公开(公告)日：2019-06-20

申请号：US16220093

申请日：2018-12-14

Applicant: Medtronic, Inc.

Inventor： Yanzhu ZHAO ,  Yong K. CHO ,  Michael D. EGGEN ,  Wei GAN ,  Kathryn HILPISCH ,  Srikara V. PEELUKHANA ,  Darrell J. SWENSON ,  Joshua J. BLAUER

IPC: A61N1/372 ,  A61N1/39 ,  A61N1/36 ,  A61N1/362

CPC classification number: A61N1/37217 ,  A61N1/36031 ,  A61N1/36135 ,  A61N1/3621 ,  A61N1/37252 ,  A61N1/37288 ,  A61N1/39622

Abstract: A device and method are described for transmitting tissue conductance communication (TCC) signals. A device may be is configured to establish a transmission window by transmitting a TCC test signal at multiple time points over a transmission test period to a receiving device and detect at least one response to the transmitted TCC test signals performed by the receiving device. The IMD is configured to establish the transmission window based on the at least one detected response so that the transmission window is correlated to a time of relative increased transimpedance between a transmitting electrode vector and receiving electrode vector during the transmission test period.

公开(公告)号：US20190046789A1

公开(公告)日：2019-02-14

申请号：US16158724

申请日：2018-10-12

Applicant: Medtronic, Inc.

Inventor： Xin CHEN ,  Michael D. EGGEN ,  Vladimir GRUBAC ,  Brian P. COLIN ,  Wei GAN ,  Thomas A. ANDERSON ,  Kathryn HILPISCH

IPC: A61N1/05 ,  A61N1/375 ,  A61N1/362 ,  A61N1/372

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.