Implantable medical device with multi-vector sensing electrodes

• US 20010034487A1
• Filed: 03/01/2001
• Published: 10/25/2001
• Est. Priority Date: 03/01/2000
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Lee, Brian B., Cao, Jian, Hurd, Spencer R.
• Granted Patent: US 6,699,200 B2
• Time in Patent Office: Days
• US Class Current: 600/508
• CPC Class Codes: A61B 5/076 Permanent implantations telemetry using implanted circuitry A61B5/0031; implanted stimulators for therapy A61N1/3605, A61N1/362, A61N1/372
• CPC Class Codes: A61B 5/287 Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
• CPC Class Codes: A61B 5/341 Vectorcardiography [VCG]

Abstract

A medical device for multi-vector sensing of cardiac depolarization signals is disclosed. Specialized algorithm is implemented to enhance multi-vector electrode sensing. Further a geometric shape is optimized to enable space-volume efficiencies for deployment and navigation of the medical device for implant in a patient.

Claims

1. An implantable medical device (IMD) including a plurality of sensing electrodes configured for multi-vector sensing forming an insertable loop recorder (ILR) in combination, the IMD comprising:

a geometric body having a thickness smaller than its width and wherein said width is smaller than a length defined along an axial-center;

a plurality of electrodes distributed at location within the perimeter of said geometric body; and

said geometric body being adapted for ease of subcutaneous deployment in a patient'"'"'s body to thereby sense physiological signals via said electrodes.

2. The IMD of

claim 1

wherein said geometric body includes a first and second extremity forming substantially curvilinear edges to thereby enable said ease of deployment.

3. The IMD of

claim 1

wherein said electrodes form multi-vector relations within the perimeter of said geometric body.

4. The IMD of

claim 3

wherein said multi-vector relations include a rule-based software program implemented to control said vector-relations between at least two electrodes.

5. The IMD of

claim 1

wherein said geometric body includes substantially divergent extremities.

6. The IMD of

claim 1

wherein the geometric shape includes a plurality of irregularly shaped profile.

7. The IMD of

claim 6

wherein the plurality of angular shape includes an S shape.

8. The IMD of

claim 6

wherein the plurality of angular shape includes an V shape.

9. The IMD of

claim 6

wherein the plurality of angular shape includes an C shape.