ORANGE COUNTY EARNINGS

Luther Medical Products Inc.: The Tustin designer and manufacturer of catheter systems said it lost $41,833, or 1 cent a share, for the third fiscal quarter, contrasted with profit of $32,460, or 1 cent a share, for the comparable 1997 period. Revenue for the quarter ended March 31 declined 13% to $1.3 million from $1.5 million.

For the nine months, the company narrowed its net loss to $381,923, or 12 cents a share, from a year-earlier net loss of $598,170, or 18 cents a share. Revenue was up 8% to $4.2 million from $3.9 million.