IP Library › Granted Patent US 12,727,771
Granted Patent B2
US 12,727,771 · App. 17/909,493 · Granted Sep 8, 2026

Wireless heart pressure sensor system and method

Inventor: David J. Minor (Phoenix, AZ)
Assignee: W. L. Gore & Associates, Inc.
A61B5/0215A61B5/002A61B5/0031A61B5/318A61B5/4836A61B5/6869A61B5/6882A61B5/7278A61B5/7289G16H20/10A61B5/02A61B5/24A61B5/48A61B5/68A61B5/72A61B2562/0247
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Quick Facts
Patent No.
US 12,727,771
App. No.
17/909,493
Granted
Sep 8, 2026
Kind
B2
Abstract

Embodiments of the present disclosure relate to implantable cardiac sensors and associated diagnostic and treatment methods. In an exemplary embodiment, a medical system for determining a treatment regimen for a patient with a heart condition comprises a sensing device including a pressure sensor for monitoring and providing RVP information representative of right ventricle heart pressures. At least the pressure sensor is configured for implantation into a right ventricle of the patients heart. One or more processors are coupled to receive the RVP information and configured to determine a right atrial filling pressure based on the RVP information and a left atrial filling pressure based on the RVP information. A display device displays the right atrial filling pressure and the left atrial filling pressure. In embodiments, the one or more processors determine the left and right atrial filling pressures using the right ventricular pressure as a surrogate.

Claims (45)

1 . A medical system, comprising:

a sensing device including a pressure sensor for monitoring and providing RVP information representative of right ventricle heart pressures over a period of time, wherein at least the pressure sensor is configured for implantation into a right ventricle of a patient's heart;

one or more processors, wherein the one or more processors are coupled to the sensing device to receive the RVP information sensed by the sensing device, and are configured to receive a patient condition, and wherein the one or more processors are configured to:

determine a right atrial filling pressure based on the RVP information;

determine a left atrial filling pressure based on the RVP information; and

produce an indication of a treatment regimen for the patient based upon the patient condition, the right atrial filling pressure, and the left atrial filling pressure;

a memory unit configured to store the right atrial filling pressure, the left atrial filling pressure, and the patient condition; and

a display device to display the indicated treatment regimen, right atrial filling pressure and the left atrial filling pressure, wherein the condition is at least one from the group of: left heart failure, right heart failure, and primary pulmonary disorder.

2 . The medical system of claim 1 wherein the one or more processors are coupled to receive the RVP information from the sensing device by a wireless communication link.

3 . The medical system of claim 1 wherein:

the sensing device comprises a wireless transmitter to wirelessly transmit the RVP information; and

the one or more processors are coupled to receive the RVP information wirelessly transmitted by the sensing device.

4 . The medical system of claim 1 wherein the sensing device comprises a housing configured for attachment to a wall in the right ventricle of the heart.

5 . The medical system of claim 4 wherein the sensing device comprises an anchor for attaching the sensing device to the wall of the right ventricle of the heart.

6 . The medical system of claim 1 wherein the sensing device is configured to be entirely located in the right ventricle.

7 . The medical system of claim 1 wherein the sensing device comprises:

an antenna to receive electromagnetic energy;

a wireless transmitter; and

wherein the sensing device is configured to be energized by the electromagnetic energy received by the antenna, and to transmit the RVP information by the wireless transmitter when energized.

8 . The medical system of claim 7 wherein the sensing device is configured to not transmit the RVP information until it is energized.

9 . The medical system of claim 1 wherein the one or more processors are configured to determine the right atrial filling pressure using the RVP information as a surrogate for the right atrial filling pressure.

10 . The medical system of claim 1 wherein the one or more processors are configured to determining the right atrial filling pressure based on heart pressure information consisting of the RVP information.

11 . The medical system of claim 1 wherein the one or more processors are configured to determine the right atrial filling pressure based on the RVP information at end diastole.

12 . The medical system of claim 1 wherein the one or more processors are configured to:

receive electrical information representative of electrical activity of the heart;

identify a time of end diastole of the heart based on the electrical information; and

determine the right atrial filling pressure based on the RVP information at the identified time of end diastole of the heart.

13 . The medical system of claim 1 wherein the one or more processors are configured to determine the left atrial filling pressure using the RVP information as a surrogate for the left atrial filling pressure.

14 . The medical system of claim 1 wherein the one or more processors are configured to determine the left atrial filling pressure based on a slope of the RVP information.

15 . The medical system of claim 14 wherein the one or more processors are configured to determine the left atrial filling pressure using the right ventricular pressure represented by the RVP information at a time corresponding to a maximum or a peak of the slope of the RVP information as a surrogate for estimated pulmonary artery diastolic pressure, and using the estimated pulmonary artery diastolic pressure as a surrogate for the left atrial filling pressure.

16 . The medical system of claim 1 wherein the one or more processors are configured to determine the left atrial filling pressure based on heart pressure information consisting of the RVP information.

17 . The medical system of claim 1 wherein the system is configured to determine the right atrial filling pressure without directly monitoring pressure in the right atrium, and to determine the left atrial filling pressure without directly monitoring pressure in the left atrium.

18 . The medical system of claim 1 wherein the sensing device is configured to provide the RVP information over one or more cycles of diastole and systole.

19 . The medical system of claim 1 wherein the one or more processors are remote from the patient associated with the RVP information.

20 . The medical system of claim 1 wherein to determine the treatment regimen of the patient, the one or more processors are configured to:

compare the right atrial filling pressure to a baseline right atrial pressure; and

compare the left atrial filling pressure to a baseline left atrial pressure.

21 . The medical system of claim 1 wherein to determine the treatment regimen of the patient, the one or more processors are configured to compare the right atrial filling pressure and the left atrial filling pressure.

22 . The medical system of claim 1 wherein to determine the treatment regimen for the patient, the one or more processors are configured to provide a notification to increase a dosage of the treatment regimen.

23 . The medical system of claim 1 wherein to determine the treatment regimen for the patient, the one or more processors are configured to provide a notification to decrease a dosage of the treatment regimen.

24 . The medical system of claim 1 wherein the one or more processors are incorporated into an implantable medical device.

25 . The medical system of claim 1 wherein the one or more processors are incorporated into a device located external to the patient.

26 . The medical system of claim 1 wherein to determine the treatment regimen of the patient, the one or more processors are configured to provide a notification to increase at least one treatment selected from the following group of treatments: vasodilators, diuretics, pulmonary vasodilators, neurohormonal antagonists, beta blockers, and inotropes.

27 . The medical system of claim 1 wherein to determine the treatment regimen of the patient, the one or more processors are configured to provide a notification to decrease at least one treatment selected from the following group of treatments: vasodilators, diuretics pulmonary vasodilators, neurohormonal antagonists, beta blockers, and inotropes.

28 . The medical system of claim 1 wherein the sensing device acquires the RVP information at a frequency greater than 100 Hz.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 10, 2023
From: MINOR, DAVID J.
To: W. L. GORE & ASSOCIATES, INC.
Reel/Frame 062661/0165 →
Continuity (2)
Provisional Application 62986355 · Mar 6, 2020
Related Publication 20230165475A1 · Jun 1, 2023
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