Claims
- 1. Method of testing selected internal epithelial tissue of a subject to determine biological condition, comprising the steps of:
- locating first and second electrodes of predetermined fixed spaced apart relation within an epithelial cavity of the subject and in contact with the selected tissue;
- locating third and fourth electrodes of predetermined constant spaced apart relation within a blood vessel of the subject closely adjacent the selected tissue;
- establishing an A. C. voltage in the range of 10 Hz to 7 KHz between the first and fourth electrodes; and
- measuring the impedance of the selected tissue located between the second and third electrodes.
- 2. Method of testing selected internal epithelial tissue as in claim 1, which includes interconnecting the first, second, third and fourth electrodes to measuring apparatus located externally of the subject.
Parent Case Info
This is a division of application Ser. No. 790,491, filed Oct. 23, 1985.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
819742 |
Apr 1981 |
SUX |
Non-Patent Literature Citations (1)
Entry |
Tedner, "Automatic Recording of Biological Impedances, Jrnl. Med. Eng. & Tech., vol. 2, No. 2, (3/1978). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
790491 |
Oct 1985 |
|