Patents Assigned to Laboratoire Hydrex
  • Patent number: 6520184
    Abstract: The invention relates to a compress or drape for single use, constituted by a plurality of alternating superposed sheets of hydrophilic cotton gauze and of non-woven hydrophilic web, and to a method of manufacturing it, the method comprising the following steps: making a continuous multilayer strip by simultaneously paying out sheets of hydrophilic cotton gauze and of non-woven web from reels, said sheets passing together via a drive device before reaching stations for making up individual drapes; putting non-woven bands around the longitudinal edges of the multilayer strip by paying out from payout spools; assembling the bands in a bonding station by means of ultrasonic bond lines; cutting individual drapes to length transversely in a cutting station; taking off the cut-apart drapes perpendicularly in a drive device; and putting bands into place around the transverse edges of the individualized drapes, and securing them by ultrasonic bonding.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: February 18, 2003
    Assignee: Laboratoire Hydrex
    Inventor: Gilles Bonnassieux
  • Patent number: 5437622
    Abstract: A transparent adhesive dressing of synthetic material having reinforced starter cuts is disclosed. The dressing contains three layers, namely, a sheet of flexible film made of polyurethane having an adhesive face, a protective sheet of backing covering the adhesive face, and a sheet of less flexible material made of polyethylene. A starter cut passes through at least two of the three layers. The starter cut is protected by a reinforcing strip disposed on the sheet of the less flexible film.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: August 1, 1995
    Assignee: Laboratoire Hydrex (SA)
    Inventor: Jean-Pierre Carion