US 12,151,116 B2
Implantable medical device with pressure sensor
Keith R. Maile, New Brighton, MN (US); William J. Linder, Golden Valley, MN (US); Moira B. Sweeney, St. Paul, MN (US); Michael J. Kane, St. Paul, MN (US); and Brendan Early Koop, Ham Lake, MN (US)
Assigned to CARDIAC PACEMAKERS, INC., St. Paul, MN (US)
Filed by CARDIAC PACEMAKERS, INC., St. Paul, MN (US)
Filed on Jun. 16, 2021, as Appl. No. 17/348,957.
Application 17/348,957 is a continuation of application No. 16/104,370, filed on Aug. 17, 2018, granted, now 11,065,459.
Claims priority of provisional application 62/547,458, filed on Aug. 18, 2017.
Prior Publication US 2021/0308467 A1, Oct. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61N 1/375 (2006.01); A61B 5/00 (2006.01); A61B 5/0215 (2006.01); A61B 5/283 (2021.01); A61B 5/287 (2021.01); A61B 5/349 (2021.01); A61B 5/363 (2021.01); A61N 1/365 (2006.01); A61N 1/37 (2006.01); A61N 1/372 (2006.01); A61B 5/11 (2006.01); A61N 1/362 (2006.01); A61N 1/368 (2006.01)
CPC A61N 1/3756 (2013.01) [A61B 5/02158 (2013.01); A61B 5/283 (2021.01); A61B 5/287 (2021.01); A61B 5/349 (2021.01); A61B 5/363 (2021.01); A61B 5/686 (2013.01); A61B 5/6869 (2013.01); A61N 1/3655 (2013.01); A61N 1/36564 (2013.01); A61N 1/3702 (2013.01); A61N 1/37276 (2013.01); A61N 1/37512 (2017.08); A61B 5/0031 (2013.01); A61B 5/0215 (2013.01); A61B 5/1107 (2013.01); A61B 5/4836 (2013.01); A61B 2560/0219 (2013.01); A61B 2560/0462 (2013.01); A61B 2562/0247 (2013.01); A61N 1/3627 (2013.01); A61N 1/36571 (2013.01); A61N 1/36578 (2013.01); A61N 1/3682 (2013.01); A61N 1/3684 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An Implantable Medical Device (IMD) for implantation in a ventricle of a heart, wherein the heart includes an atrium that contracts to supply blood to the ventricle, the IMD comprising:
an elongated housing having a midpoint with a proximal region extending proximally of the midpoint and a distal region extending distally of the midpoint, the distal region having at a distal end;
a first electrode exposed to the environment outside of the housing along the distal end of the housing;
a second electrode situated in the proximal region of the housing and exposed to the environment outside of the housing;
a pressure sensor housed by the housing, the pressure sensor is structured to sense a change in pressure in the ventricle of the heart that is indicative of a contraction of the atrium of the heart, and in response, produce an output signal, wherein the pressure sensor includes a sensing diaphragm that is encompassed entirely in the proximal region of the housing;
control circuitry housed by the housing and operatively coupled to the first electrode, the second electrode and the pressure sensor, the control circuitry is configured to identify an atrial contraction of the heart based at least in part on the output signal of the pressure sensor; and
communication circuitry operatively coupled to the control circuitry, the communication circuitry configured to send information to a remote device that is based at least in part on the identified atrial contraction of the heart.