SINGLE CATHETER FOR ATRIAL AND VENTRICULAR STIMULATION

• US 3,825,015 A
• Filed: 12/14/1972
• Issued: 07/23/1974
• Est. Priority Date: 12/14/1972
• Status: Expired due to Term

• Current Assignee: Barough V. Berkovits
• Original Assignee: Barough V. Berkovits
• Inventors: Berkovits, Barough V.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US05/315,252
• Time in Patent Office: 586 Days
• Field of Search: 128/404,418,419D,419P,419R
• US Class Current: 607/123
• CPC Class Codes: A61N 1/056 Transvascular endocardial electrode systems
• CPC Class Codes: Y10S 128/901 Suppression of noise in electric signal

Abstract

A single catheter for atrial and ventricular stimulation. A single catheter is disclosed that provides separate electrical stimulation to the atrium and separate electrical stimulation to the ventricle on mutually insulated conductors. All conductors are encapsulated in the single catheter and electrical interference between the atrial and ventricular conductors is eliminated through the use of electro-static shielding. The catheter provides two or more mutually insulated electrical conductors for stimulating the atrium. The best electrical contact made between the atrial conductors and the atrium may be measured and selected for use.

Claims

1. A single catheter for use with a heart stimulator which generates electrical inpulses for the purpose of separately stimulating the atrium and ventricle of said heart, said catheter comprising first means for conducting atrial stimulation from said sstimulator to said atrium, said first means including a plurality of at least three insulated electrical conductors disposed internal to said single catheter and terminating at different locations along said catheter from which at least two said conductors are chosen to conduct said atrial stimulation, second means for conducting ventricular stimulation from said stimulator to said ventricle, and means for preventing electromagnetic interference between said first and second stimulation application means.

2. A single catheter as recited in claim 1 and wherein said first means further includes a plurality of at least three regularly spaced conductive rings exposed to the surface of said catheter, each of said rings being conductively connected respectively to one of said plurality of at least three insulated electrical conductors.

3. A single catheter as recited in claim 2 and wherein said second means includes a plurality of at least two insulated electrical conductors disposed internal to said catheter and a plurality of at least two conductive rings exposed to the surface of said catheter where each of said plurality of at least two conductive rings is conductively connected respectively to one of said plurality of at least two insulated electrical conductors.