Patents Assigned to Mediventures Inc.
  • Patent number: 5376693
    Abstract: Balanced pH, thermo-irreversible gels comprising a polyoxyalkylene compound and an ionic polysaccharide are ideal materials for the formation of a protective contact lens over the cornea of the eye of a mammal.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: December 27, 1994
    Assignee: Mediventures Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 5366735
    Abstract: A process and compositions for reducing post-surgical adhesion formation/reformation in mammals following injury to organs situated in mammalian body spaces. Aqueous, isotonic gel compositions, preferably at mammalian body fluid pH, comprising a polyoxyalkylene polymer are applied to injured areas of the organs situated in body cavities such as, the peritoneal, pelvic, or pleural cavity.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: November 22, 1994
    Assignee: Mediventures, Inc.
    Inventor: Raymond L. Henry
  • Patent number: 5346703
    Abstract: Balanced pH, thermo-irreversible gels are ideal vehicles for drug delivery to a body cavity of a mammal. The gels contain a mixture of a polyoxyalkylene block copolymer or polyether together with an ionic polysaccharide which is thermo-irreversibly gelled in the presence of a counter-ion.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: September 13, 1994
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 5318780
    Abstract: Balanced pH, hyperosmotic, hypoosmotic, or isoosmotic gels are ideal vehicles for drug delivery. They are especially suited for topical body cavity or injection application of drugs or diagnostic agents; for drug or diagnostic agent delivery to the eye of a mammal; as protective corneal shields; or as ablatable corneal masks useful in laser reprofiling of the cornea. The compositions without the addition of a drug or diagnostic agent are useful as medical devices, for instance, in separating surgically or otherwise injured tissue as a means of preventing adhesions.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: June 7, 1994
    Assignee: Mediventures Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 5306501
    Abstract: Isotonic, iso-osmotic, pH balanced thermoreversible gels are ideal medical devices or vehicles for drug injection into the body of a mammal. The osmolality in the gel state can be calculated by assuming that a polyoxyalkylene block copolymer or polyether present in said gel does not contribute to the osmolality in the gel state, although it does contribute to the osmolality in the liquid state.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: April 26, 1994
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Robert S. Levinson
  • Patent number: 5300295
    Abstract: Aqueous gel drug delivery compositions and medical devices, useful for treating an eye condition, having hyperosmotic, iso-osmotic or hypo-osmotic characteristics in the gel state, are obtained by calculating the osmolality required in the liquid state to reach a desired osmotic force in the gelled state by assuming that a polyoxyalkylene block copolymer does not contribute to the osmolality in the gel state.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: April 5, 1994
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Robert S. Levinson
  • Patent number: 5298260
    Abstract: Iso-osmotic, hyperosmotic, or hypo-osmotic, pH balanced, thermoreversible gels are ideal medical devices or vehicles for drug delivery to the skin of a mammal. The osmolality in the gel state can be calculated by assuming that a polyoxyalkylene block copolymer or polyether present in said gel does not contribute to the osmolality in the gel state, although it does contribute to the measured osmolality in the liquid state.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 29, 1994
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Robert S. Levinson
  • Patent number: 5292516
    Abstract: Isotonic, iso-osmotic, pH balanced thermoreversible gels are ideal vehicles for drug delivery to a body cavity of a mammal. The osmolality in the gel state can be calculated by assuming that a polyoxyalkylene block copolymer or polyether present in said gel does not contribute to the osmolality in the gel state, although it does contribute to the osmolality in the liquid state.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: March 8, 1994
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Robert S. Levinson
  • Patent number: 5277911
    Abstract: Balanced pH, thermo-irreversible polyoxyalkylene polymer and ionic polysaccharide gels are ideal materials for use as an ablatable mask or coating over the cornea of the eye of a mammal during excimer laser keratectomy. The depth and smoothness of the ablated corneal surface can be controlled by molding the desired surface curvature into the mask surface using a contact lens as a mold which is pressed onto the gel surface coating the cornea.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: January 11, 1994
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 5124151
    Abstract: Balanced pH, thermo-irreversible gels are ideal vehicles for drug injection into the body of a mammal.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: June 23, 1992
    Assignee: Mediventures Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 5077033
    Abstract: Balanced pH, thermo-irreversible gels are ideal vehicles for drug delivery to the eye of a mammal.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: December 31, 1991
    Assignee: Mediventures Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 5071644
    Abstract: Balanced pH, thermo-irreversible gels are ideal vehicles for drug delivery to the skin of a mammal.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: December 10, 1991
    Assignee: Mediventures, Inc.
    Inventors: Tacey X. Viegas, Lorraine E. Reeve, Raymond L. Henry
  • Patent number: 4911926
    Abstract: A process and compositions for reducing post-surgical adhesion formation/reformation in mammals following surgical injury to the peritoneal or pleural cavity or organs situated therein. Both aqueous and non-aqueous compositions comprising a polyoxyalkylene block copolymer are applied to injured areas of the peritoneal or pleural cavity or organs situated therein subsequent to surgical injury.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: March 27, 1990
    Assignee: Mediventures Inc.
    Inventors: Raymond L. Henry, Richard E. Leach