Patents Assigned to Hancock Laboratories, Inc.
  • Patent number: 4211325
    Abstract: A device for retaining a natural tissue heart valve and stent assembly during storage and transportation prior to implantation of the valve. The device consists of an open-ended, cylindrical valve case having an internal support for a valve support ring adapted to grasp the valve stent. A retainer holds the valve support ring in position within the valve case. The assembled device is stored in a jar containing a preserving liquid until the valve is to be implanted.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: July 8, 1980
    Assignee: Hancock Laboratories, Inc.
    Inventor: John T. M. Wright
  • Patent number: 4182446
    Abstract: This invention provides a holder which retains a natural tissue heart valve assembly during storage and transportation prior to implantation of the valve. The device includes an annular member circumscribing the heart valve assembly above the sewing ring thereof, and resilient arms which extend outwardly of the annular member and are connectable remote from the heart valve assembly. The device further includes resilient elements inclined outwardly for engaging the wall of a container receiving the heart valve holder and also may include a base member for supporting the base of the heart valve assembly and means releasably connecting said base member to said annular member so that the same are in spaced relationship.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: January 8, 1980
    Assignee: Hancock Laboratories, Inc.
    Inventor: William Penny
  • Patent number: 4090878
    Abstract: An arrangement for preparing natural tissue in the form of a heart valve, vessel or the like for implantation in which tanning fluid under pressure is applied to a portion of the tissue so as to cause said tissue to assume substantially its natural configuration, while additional tanning fluid is applied to the remainder of the tissue, said tanning fluid being so applied for a time sufficient to cause the tissue to become fixed, and, for vessels or the like, a guide may engage the tissue during fixation, whereby said tissue maintains substantially the configuration of the guide.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: May 23, 1978
    Assignee: Hancock Laboratories, Inc.
    Inventors: Warren D. Hancock, Frederick P. Sattler
  • Patent number: 4050893
    Abstract: An arrangement for preparing natural tissue in the form of a heart valve, vessel or the like for implantation in which tanning fluid under pressure is applied to a portion of the tissue so as to cause said tissue to assume substantially its natural configuration, while additional tanning fluid is applied to the remainder of the tissue, said tanning fluid being so applied for a time sufficient to cause the tissue to become fixed, and, for vessels or the like, a guide may engage the tissue during fixation, whereby said tissue maintains substantially the configuration of the guide.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: September 27, 1977
    Assignee: Hancock Laboratories, Inc.
    Inventors: Warren D. Hancock, Frederick P. Sattler
  • Patent number: RE30912
    Abstract: A heart valve stent that includes an annular framework, preferably of bendable material, having three rounded apexes interconnected by support arms curved to incline away from the apexes. Additional support arms are included parallel to and axially beyond the first support arms. For use in the mitral position, the framework is circumscribed by an outer ring, which receives an annular element of felt or other suitable material. The heart valve is positioned on the stent, with its marginal portions overlapping it and affixed to it by sutures.
    Type: Grant
    Filed: June 14, 1978
    Date of Patent: April 27, 1982
    Assignee: Hancock Laboratories, Inc.
    Inventor: Warren D. Hancock
  • Patent number: RE31035
    Abstract: An arrangement for preparing natural tissue in the form of a heart valve, vessel or the like for implantation in which tanning fluid under pressure is applied to a portion of the tissue so as to cause said tissue to assume substantially its natural configuration, while additional tanning fluid is applied to the remainder of the tissue, said tanning fluid being so applied for a time sufficient to cause the tissue to become fixed, and, for vessels or the like, a guide may engage the tissue during fixation, whereby said tissue maintains substantially the configuration of the guide.
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: September 21, 1982
    Assignee: Hancock Laboratories, Inc.
    Inventors: Warren D. Hancock, Frederick P. Sattler