Patents Examined by John P. Acyk
  • Heart retractor
    Patent number: 5509890
    Abstract: The heart retractor for use in coronary bypass operations consists of a pair of long tapes, a short tape having an opening or a pair of short tapes and a couple of rings freely mounted thereon for forming an opening, and a longitudinal tape for connecting the long tapes and short tape or tapes in parallel with each other.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: April 23, 1996
    Inventor: Shigeru Kazama