Patents Assigned to Celsa L.G. (Societe Anonyme)
  • Blood filtering device having a catheter with longitudinally variable rigidity
    Patent number: 5484424
    Abstract: The invention relates to a blood filtration device which can be implanted in a patient's body and comprises a catheter and a blood filter secured to one end thereof. The catheter has a longitudinally variable rigidity, being stiffer at its end where the filter is secured thereto and more flexible at the opposite end where the catheter can be connected to an implantable chamber adapted for distributing a drug in the patient's body.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: January 16, 1996
    Assignee: Celsa L.G. (Societe Anonyme)
    Inventors: Jean-Philippe Cottenceau, Gerard Chevillon
  • Filter with triangular fingers
    Patent number: 5344427
    Abstract: The filter includes a plurality of resilient fingers (2) which can be unfolded and are provided at their free ends with centering and bearing runners (5) for engaging an interior wall of a blood vessel. In accordance with a preferred embodiment of the invention, the fingers and the runners consist of flexible wires that are assembled with groups of two adjacent fingers being joined by a wire part folded in the shape of a hairpin.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: September 6, 1994
    Assignee: Celsa L.G. (Societe Anonyme)
    Inventors: Jean-Philippe Cottenceau, Gerard Chevillon