Transcutaneous electric muscle/nerve controller/feedback unit

• US 5,447,526 A
• Filed: 12/24/1992
• Issued: 09/05/1995
• Est. Priority Date: 12/24/1992
• Status: Expired due to Term

• Current Assignee: Jeffrey Karsdon
• Original Assignee: Jeffrey Karsdon
• Inventors: Karsdon, Jeffrey
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): Parker, Marianne
• Application Number:
  US07/996,572
• Time in Patent Office: 985 Days
• Field of Search: 607/39, 607/40, 607/41, 607/42, 607/43, 607/44, 607/48, 607/50, 607/138, 607/148, 607/149, 607/152
• US Class Current: 607/39
• CPC Class Codes: A61B 2017/4216 Operations on uterus, e.g. endometrium
• CPC Class Codes: A61N 1/36007 of urogenital or gastrointestinal organs, e.g. for incontinence control
• CPC Class Codes: A61N 1/36031 using physiological parameters for adjustment
• CPC Class Codes: A61N 1/36034 specified by the stimulation parameters

Abstract

A transcutaneous uterine contraction inhibiting device comprises a first plurality electrode positioned on an anterior side of an abdomen of a patient, a second plurality electrode positioned on the anterior side, and an electric current generator establishing electric current flow between the first plurality electrode and the second plurality electrode. The first plurality electrode is positioned above an upper portion of the uterus and extends laterally across the uterus. The second plurality electrode is positioned on a mid to lower portion of the uterus and also extends laterally across it. Further, a feedback unit can be provided for generating a signal indicative of any uterine contractions. The electric current generator then establishes an electric current in response to the signal from the feedback unit.

Claims

1. A method for inhibiting uterine contractions using a transcutaneous uterine contraction inhibiting device including a first polarity electrode, at least one second polarity electrode, and an electrical current generator for establishing uterine contraction inhibiting electrical current flow between the first polarity electrode and the second polarity electrode, the method comprising:

positioning the first polarity electrode on an anterior side of an abdomen of a patient;

positioning the at least one second polarity electrode on the anterior side of the abdomen; and

inhibiting uterine contractions by establishing the electrical current flow between the first polarity electrode and the at least one second polarity electrode by activating the electrical current generator.

2. A method as claimed in claim 1, wherein the step of establishing the electrical current comprises generating current pulses between the first polarity electrode and the at least one second polarity electrode, the pulses having a predetermined constant current amplitude.

3. A method as claimed in claim 1, wherein the step of establishing the electrical current comprises establishing a current between the first polarity electrode and the at least one second polarity electrode having a rectangular wave characteristic as a function of time.

4. A method as claimed in claim 1, wherein the step of positioning the first polarity electrode comprises positioning the first polarity electrode above an upper portion of the uterus.

5. A method as claimed in claim 4, wherein the step of positioning the first polarity electrode comprises positioning the first polarity electrode to extend laterally across the upper portion of the uterus.

6. A method as claimed in claim 4, wherein the step of positioning the at least one second polarity electrode comprises positioning the at least one second polarity electrode above a mid to lower portion of the uterus.

7. A method as claimed claim 4, further comprising providing a plurality of the second polarity electrodes.

8. A method as claimed in claim 7, further comprising positioning the plurality of second polarity electrodes above a mid to lower portion of the uterus.

9. A method as claimed in claim 8, wherein the step of positioning the second polarity electrodes comprises positioning each one of the plurality of second polarity electrodes to extend laterally across a mid to lower portion of the uterus.

10. A method as claimed in claim 1, wherein the device further comprises a muscular contraction sensor, and the method further comprises detecting muscular contractions of a uterus of the patient with the sensor and establishing the electrical current flow in response to the contractions.

11. A transcutaneous uterine contraction inhibiting device, comprising:

electrode means, comprising electrodes, for sending an electric current through a uterus of a patient;

sensor means for detecting muscular contractions of the uterus and generating a signal indicative of the muscular contractions; and

generator means for driving the electrode means by establishing electric current between the electrodes in response to the signal from the sensor means.

12. A device as claimed in claim 11, wherein the electrodes comprise:

first polarity electrode means for providing an electric current connection from the generator means to an anterior side of an abdomen of the patient; and

at least one second polarity electrode means for providing an electrical current connection from the generator means to the anterior side of the abdomen.

13. A device as claimed in claim 12, wherein the first polarity electrode means provides the electrical current connection to a region of the abdomen above an upper portion of the uterus.

14. A device as claimed in claim 13, wherein the first polarity electrode means provides the electrical current connection from the generator means a region of the abdomen extending laterally across the upper portion of the uterus.

15. A device as claimed in claim 14, wherein the at least one second polarity electrode means provides the electrical current connection to a region of the abdomen above a mid to lower portion of the uterus.

16. A device as claimed in claim 13, wherein the at least one second polarity electrode means comprises a plurality of second polarity electrode means.

17. A device as claimed in claim 16, wherein the plurality of second polarity electrode means provide an electrical current connection to a region of the abdomen above a mid to lower portion of the uterus.

18. A device as claimed in claim 17, wherein each one of the plurality of second polarity electrode means provide an electrical current connection to a region of the abdomen extending laterally across a mid to lower portion of the uterus.

19. A device a claimed in claim 11, wherein the electric current generated by the generator means comprises current pulses having a predetermined constant current amplitude.

20. A device as claimed in claim 11, wherein the electric current as a function of time has a rectangular wave characteristic.