Interference No. 103,197 oximetry, he did not explain what it was used for. [We note120 that a fetal probe having this construction is described in the "Background Art" portion of Hochberg (col. 1, lines 29-39) as useful for measuring fetal heart rate, i.e., an EKG.] The middle sketch in MX 47, labeled "NEW FIBER OPTIC DESIGN, employs fiber optics in place of the two twisted leads. As is apparent from this sketch, the distal end of a first optical fiber extends axially through the probe body, terminating at the distal face. As shown in both the middle and bottom sketches, the distal end of a second optical fiber extends through the probe body and through the center of the cork screw, which is hollow and may be formed of metal or plastic. Notation to the right of the bottom sketch states that "FIBER IN CORKSCREW CAN BE FOR PH. FIBER ON HUB SURFACE CAN DETECT PULSE." The same design, dated 3/16/88, appears as the bottom sketch in MX 45, which is a copy of a page from Ted Johnson's personal notebook, and also in MX 46, a detailed drawing121 T. Johnson, MR 576:1-10.120 T. Johnson, MR 28, ¶ 19.121 - 75 -Page: Previous 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 NextLast modified: November 3, 2007