Partially implantable system for the electrical treatment of abnormal tissue growth

• US 7,720,549 B2
• Filed: 04/06/2004
• Issued: 05/18/2010
• Est. Priority Date: 04/06/2004
• Status: Active Grant

• Current Assignee: Oncostim, Inc.
• Original Assignee: Oncostim, Inc.
• Inventors: Schroeppel, Edward A, Kroll, Mark, Kroll, Kai
• Primary Examiner(s): Layno; Carl H.
• Assistant Examiner(s): MORALES, JON ERIC C
• Application Number:
  US10/819,641
• Publication Number:
  US 20050222623A1
• Time in Patent Office: 2,233 Days
• Field of Search: 607/61, 607/1, 607/2, 607/33, 607/36
• US Class Current: 607/75
• CPC Class Codes: A61N 1/326 for promoting growth of cells, e.g. bone cells

Abstract

This present embodiment relates generally to the electrical treatment of malignant tumors and neoplasms by applying a voltage to affected tissue. Devices and various adaptations therein are described for use in electrical therapy. Additionally, various ambulatory devices are described which advantageously increase versatility of the electrical therapy system. The ambulatory devices may include an internal and external power source and/or a first and second power source. The ambulatory devices may also include communication means for communicating between various portions of the device.

Claims

1. A medical device for the treatment of abnormal tissue growth within a patient'"'"'s body comprising:

an external generator placed outside the body for providing an electrical pulse effective to carry out direct current ablation;

at least one electrode transcutaneously placed in a body wherein said at least one electrode is operably coupled to said external generator such that said external generator delivers said electrical pulse to said at least one electrode to carry out direct current ablation of the abnormal tissue growth; and

an affixing means for securing said external generator to the body;

wherein the generator is sufficiently flexible to conform to an exterior surface of the patient'"'"'s body.

2. The device of claim 1 further comprising a port located at a surface of the patient'"'"'s body for releasably coupling the external generator to the electrode.

3. The device of claim 1 wherein the generator is equipped with quick connect means for releasably coupling its generator to a plurality of leads.

4. A medical device for the treatment of abnormal tissue growth within a patient'"'"'s body comprising:

an external generator placed outside the body for providing an electrical pulse effective to carry out direct current ablation;

at least one electrode transcutaneously placed in a body wherein said at least one electrode is operably coupled to said external generator such that said external generator delivers said electrical pulse to said at least one electrode to carry out direct current ablation of the abnormal tissue growth;

an affixing means for securing said external generator to the body; and

a tapered indifferent electrode coupled to the generator and positioned on an exterior surface of the body, the indifferent electrode having an impedance that increases radially from its center to its circumference.

5. The device of claim 4 further comprising a port located at a surface of the patient'"'"'s body for releasably coupling the external generator to the transcutaneously placed electrode.

6. The device of claim 4 wherein the generator is equipped with quick connect means for releasably coupling its generator to a plurality of leads.