Radian curve shaped implantable cardioverter-defibrillator canister

• US 7,120,496 B2
• Filed: 07/09/2004
• Issued: 10/10/2006
• Est. Priority Date: 09/18/2000
• Status: Expired due to Term

• Current Assignee: Cameron Incorporated (Schlumberger NV)
• Original Assignee: Cameron Incorporated (Schlumberger NV)
• Inventors: Rissmann, William J., Bardy, Gust H., Sanders, Gary H., Cappato, Riccardo
• Primary Examiner(s): Pezzuto, Robert E.
• Assistant Examiner(s): DROESCH, KRISTEN L
• Application Number:
  US10/888,843
• Publication Number:
  US 20040260353A1
• Time in Patent Office: 823 Days
• Field of Search: 607/36
• US Class Current: 607/36
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings
• CPC Class Codes: A61N 1/37512 Pacemakers
• CPC Class Codes: A61N 1/37518 Anchoring of the implants, e.g. fixation
• CPC Class Codes: A61N 1/3756 Casings with electrodes thereon, e.g. leadless stimulators
• CPC Class Codes: A61N 1/3906 characterised by the form of the shockwave
• CPC Class Codes: A61N 1/3956 Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
• CPC Class Codes: A61N 1/3968 Constructional arrangements, e.g. casings A61N1/375 takes precedence
• CPC Class Codes: A61N 1/3975 Power supply A61N1/378 takes precedence

Abstract

One embodiment of the present invention provides an implantable cardioverter-defibrillator for subcutaneous positioning between the third rib and the twelfth rib within a patient, the implantable cardioverter-defibrillator including a housing, wherein at least a portion of the housing is curved; an electrical circuit; and an electrically conductive surface located on a portion of the housing, wherein the electrically conductive surface is coupled to the electrical circuit.

Claims

1. A housing for an implantable electrical cardiac stimulus device, the housing having a curvature shaped to mimic the anatomical shape of a patient'"'"'s ribcage such that the housing can maintain a predetermined relationship over a patient'"'"'s ribs when subcutaneously implanted;

the housing having a first electrode located on an interior portion of the curvature.

2. The housing of claim 1, further comprising a receiver location for receiving a plug of a lead assembly including a second electrode.

3. An implantable electrical cardiac stimulus device comprising:

circuitry configured to perform electrical cardiac stimulus; and

a housing as defined in claim 2;

wherein;

the circuitry is housed in the housing; and

the circuitry is coupled to the first and second electrodes, the circuitry configured to deliver electrical stimulus using the first and second electrodes.

4. The device of claim 3, wherein the circuitry is configured to perform a pacing function.

5. The device of claim 3, wherein the circuitry is configured to perform a defibrillation/cardioversion function.

6. An implantable electrical cardiac stimulus device comprising:

circuitry configured to perform electrical cardiac stimulus; and

a housing as defined in claim 1;

wherein the circuitry is housed in the housing.

7. The device of claim 6, wherein the circuitry is configured to perform a pacing function.

8. The device of claim 6, wherein the circuitry is configured to perform a defibrillation/cardioversion function.

9. A housing for an implantable medical device, the housing having a curvature, width, thickness, a proximal end, and a distal end, the thickness tapering along at least a portion between the proximal and distal ends, the curvature adapted for conformal subcutaneous placement adjacent a patient'"'"'s ribs;

wherein the housing has a first electrode located on an interior portion of the curvature.

10. The housing of claim 9, wherein the curvature is shaped to conform to a patient'"'"'s ribs.

11. The housing of claim 10, wherein the housing is formed of a flexible material allowing it to conform to the patient'"'"'s ribs.

12. The housing of claim 9, further comprising a second electrode located on the interior portion of the curvature, the second electrode being spaced from the first electrode.

13. An implantable electrical cardiac stimulus device comprising:

circuitry configured to perform electrical cardiac stimulus; and

a housing as defined in claim 12;

wherein;

the circuitry is housed in the housing;

the circuitry is coupled to the first and second electrodes; and

the circuitry is configured to deliver electrical stimulus using the first and second electrodes.

14. An implantable electrical cardiac stimulus device comprising:

circuitry configured to perform electrical cardiac stimulus; and

a housing as defined in claim 9;

wherein the circuitry is housed in the housing.

15. The device of claim 14, wherein the circuitry is configured to perform a pacing function.

16. The device of claim 14, wherein the circuitry is configured to perform a defibrillation/cardioversion function.

17. The housing of claim 9, further comprising a receiver for a plug of a lead electrode assembly disposed at the proximal end of the housing.

18. An implantable electrical cardiac stimulus system comprising:

circuitry configured to perform electrical cardiac stimulus;

a housing as defined in claim 17; and

a lead electrode assembly having a proximal end including a plug;

wherein;

the circuitry is housed in the housing; and

the plug is secured in the receiver such that the circuitry is placed in electrical contact with the lead electrode assembly.