Cardiac pressure monitoring device

• US 20090054793A1
• Filed: 01/25/2008
• Published: 02/26/2009
• Est. Priority Date: 01/26/2007
• Status: Active Grant

• Current Assignee: Endotronix, Inc.
• Original Assignee: Endotronix, Inc.
• Inventors: Nunez, Anthony I., Rowland, Harry D.
• Granted Patent: US 8,894,582 B2
• Time in Patent Office: Days
• US Class Current: 600/485
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/412 Detecting or monitoring sepsis
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 1/36564 controlled by blood pressure
• CPC Class Codes: A61N 1/36578 controlled by mechanical motion of the heart wall, e.g. measured by an accelerometer or microphone

Abstract

A cardiac pressure monitoring device includes a fixation member defining a central opening to facilitate slidably positioning the fixation device about a pacemaker lead wire. At least one sensor is coupled to the fixation member. The at least one sensor is configured to sense a physical, chemical, and/or physiological parameter within a cardiac chamber.

Claims

1. A cardiac pressure monitoring device comprising:

a fixation member defining a central opening to facilitate slidably positioning said fixation device about a pacemaker lead wire; and

at least one sensor coupled to said fixation member, said at least one sensor configured to sense at least one of a physical, chemical, and physiological parameter within a cardiac chamber.

2. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is integrated with said fixation member.

5. A cardiac pressure monitoring device in accordance with claim 1 wherein said fixation member has one of a hexagonal, circular, triangular, pentagonal, octagonal, polygonal and non-polygonal cross-sectional area.

6. A cardiac pressure monitoring device in accordance with claim 1 wherein said fixation member defines a radially outer surface, said at least one sensor coupled to said radially outer surface.

7. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is configured to sense at least one of a physical, chemical, and physiological parameter.

8. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is configured to sense a cardiac pressure within a heart.

9. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor comprises one of a pressure sensor, an optical sensor, a biochemical sensor, a protein sensor, a motion sensor, an accelerometer, a gyroscope, a temperature sensor, a chemical sensor, a pH sensor, and a genetic sensor.

10. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor comprises one of a capacitive pressure sensing device, a piezoelectric pressure sensing device and a piezoresistive pressure sensing device.

11. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is coupled to said outer surface using one of an acrylic-based adhesive, an epoxy-based adhesive, a polyurethane-based adhesive, and a silicon-based adhesive.

12. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is coupled to said fixation member using one of a chemical bonding process, a heat bonding process, a soldering process, a suturing process using a non-absorbable suture, and an outer packaging material.

13. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is coated with one of a heparin-bonded ePTFE material, a drug eluting material, Tacrolimus, Sirolimus, and an anti-metabolite.

14. A cardiac pressure monitoring device in accordance with claim 1 wherein said at least one sensor is fabricated using a suitable microelectromechanical systems (MEMS) technology.

3. (canceled)

4. (canceled)

15. (canceled)

16. (canceled)

17. A cardiac pressure monitoring device comprising:

a fixation member comprising an anchoring member anchoring said fixation member with respect to a cardiac chamber wall; and

a wireless pressure sensor coupled to said fixation member and configured to monitor cardiac pressure within the cardiac chamber.

18. A cardiac pressure monitoring device in accordance with claim 17 wherein said pressure sensor is fabricated using a suitable microelectromechanical systems (MEMS) technology.

19. A monitoring device comprising:

an adjustable fixation member defining a central opening to facilitate slidably positioning said adjustable fixation member about an implantable medical device; and

at least one sensor coupled to said adjustable fixation member, said at least one sensor configured to sense at least one of a physical, chemical, and physiological parameter of a cardiac chamber.

20. A monitoring device in accordance with claim 19 wherein said at least one sensor is integrated with said fixation member.

21. A monitoring device in accordance with claim 19 wherein said at least one sensor comprises one of a pressure sensor, an optical sensor, a biochemical sensor, a protein sensor, a motion sensor, an accelerometer, a gyroscope, a temperature sensor, a chemical sensor, a pH sensor, and a genetic sensor.

22. A monitoring device in accordance with claim 19 wherein said fixation member further comprises:

a midsection defining a surface;

a first portion pivotally coupled to said midsection, said first portion comprising at least one first movable segment; and

an opposing second portion pivotally coupled to said midsection, said second portion comprising at least one second movable segment, wherein each of said first movable segment and said second movable segment movable with respect to said midsection to adjust said opening to position said fixation member about an implantable medical device.

23. A monitoring device in accordance with claim 22 wherein said at least one sensor is one of coupled to said surface and integrated with said surface.

24. A cardiac intervention system comprising:

an implantable medical device; and

a cardiac pressure monitoring device positioned about said implantable medical device, said cardiac pressure monitoring device comprising;

a fixation member defining a central opening to facilitate slidably positioning said fixation member about said implantable medical device; and

at least one sensor coupled to said fixation member, said at least one sensor configured to sense at least one of a physical, chemical, and physiological parameter of a cardiac chamber.

25. A cardiac pressure monitoring device in accordance with claim 24 further comprising a catheter operatively coupled to said implantable medical device and configured to urge said cardiac pressure monitoring device along a length of said implantable medical device.