Organ stimulator

• US RE30,366 E
• Filed: 09/15/1976
• Issued: 08/12/1980
• Est. Priority Date: 09/21/1970
• Status: Expired due to Term

• Current Assignee: Intermedics Incorporated
• Original Assignee: Rasor Associates, Inc.
• Inventors: Rasor, Ned S., Spickler, Joseph W.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US05/723,635
• Time in Patent Office: 1,427 Days
• Field of Search: 128/404, 128/418, 128/419 B, 128/419 E, 128/419 P, 128/419 PG, 128/419 PS, 128/2.06 E, 128/639, 128/642, 128/784, 128/785, 128/786
• US Class Current: 607/36
• CPC Class Codes: A61N 1/0573 chacterised by means penetrating the heart tissue, e.g. helix needle or hook
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings
• CPC Class Codes: A61N 1/3785 generated by biological activity or substance, e.g. body movement

Abstract

A stimulator device for insertion in a living body and having particular advantage for intra-cardiac use comprising a structure having a body form of a size and configuration to enable its transvenous or transarterial insertion, the surface of said body form providing electrode means for contact with a portion of the living body to be stimulated by said electrode means, and means mounted to project outwardly of and peripherally of said body form including anchor portions locating in a position displaced from said electrode means and providing means for engaging in portions of said living body to establish said electrode means in a required position of use, said electrode means having in connection therewith means to energize the same once said body form is located in its required position of use.

Claims

1. A stimulator device for insertion in a living body and having particular advantage for intracardiac use comprising a structure having a body form for transvenous or transarterial insertion, electrode means on the surface of said body form for contact with a portion of the living body to be stimulated by said electrode means, and means mounted to project outwardly of and peripherally of said body form including anchor portions locating in a position displaced from said electrode means and providing means for engaging in portions of said living body to establish said electrode means in a required position of use, said electrode means having in connection therewith means to energize the same once said body form is located in its required position of use.

2. A stimulator device as in claim 1 wherein said means to energize said electrode means includes a power source positioning in a location remote from said body form.

3. A stimulator device as in claim 1 wherein said means to energize said electrode means includes a power source embodied within said body form.

4. A stimulator device as in claim 1 wherein spaced surface portions of said body form define separate electrode means.

5. A structure as in claim 1 wherein said anchor portions are defined by wire like segments connected with and biased to normally project outwardly from said body form to facilitate the establishment of a connection thereof with said living body in an area displaced from said electrode means.

6. A stimulator device as in claim 1 wherein said electrode means have a fixed positioning in respect to said body form and comprise at least two electrodes, and said body form includes insulator means separating said electrodes.

7. A stimulator device as in claim 1 characterized by said body form being a unitized structure having means for guiding the same for transvenous or transarterial insertion. .Iadd. 8. A stimulator device for insertion against a portion of a living body, comprising:

a structure having a body form;

electrode means supported by said body form for non-attaching contact with a portion of the living body to be stimulated thereby; and

anchor means proceeding from said body form, said anchor means including anchor portions for location in a position in said living body, said anchor portions providing means for piercing and thereby engaging in said position of said living body, said anchor means including means for mounting said anchor portions to project outwardly of said body form and away from all portions of said electrode means for preventing formation of significant non-excitable tissue such as fibrotic tissue adjacent to said electrode means due to irritation of said living body caused by said anchor means to establish said electrode means in a required position of use, said electrode means having in connection therewith means to energize the same one said body form is located in its required position of use. .Iaddend..Iadd. 9. A stimulator device is in claim 8, wherein in use said structure, electrode means and anchor means fit against a single side of an organ of said living body. .Iaddend..Iadd. 10. A stimulator device as in claim 9, wherein said organ comprises a heart. .Iaddend. .Iadd. 11. A stimulator device for insertion in a living body, comprising;

a structure having a body form;

electrode means supported by said body form for non-attaching contact with a first surface of an organ in a living body, which organ is to be stimulated by said electrode means; and

anchor means, said anchor means including anchor portions locating in a position in said first surface of said organ, said portions providing means for engaging in said first surface of said organ, said anchor means including means for mounting said anchor portions to project outwardly of and displaced from all portions of said electrode means a distance sufficient to prevent significant formation of non-excitable tissue such as fibrotic tissue adjacent to said electrode means due to said anchor means to establish said electrode means in a required position of use, said electrode means having in connection therewith means to energize the same once said body form is located in its required position of use. .Iaddend..Iadd. 12. A stimulator device as in claim 11, wherein in use said structure, electrode means and anchor means fit generally against said first surface of said organ without passing piercingly through said organ from said first to a second surface thereof. .Iaddend..Iadd. 13. A stimulator device as in claim 12, wherein said organ comprises a heart. .Iaddend.