Patents Assigned to Life Medical Science, Inc.
  • Patent number: 6943211
    Abstract: Provided is a composition comprising a pre-formed, hydrolytically susceptible non-addition polyanionic polymer comprising polymer strands formed from at least one ethylenically unsaturated monomer and linking the polymer strands by at least one linking moiety comprising a hydrolytically susceptible bond, wherein at least one of which monomers has: i) one or more functional groups that can be titrated with base to form negatively charged functional groups; or ii) one or more precursor groups that are precursors of the functional groups that can be titrated with base; which precursor groups are converted to the functional groups.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: September 13, 2005
    Assignee: Life Medical Sciences, Inc.
    Inventors: Jeffrey A. Hubbell, Petra van de Wetering, Didier Cowling
  • Patent number: 6872384
    Abstract: Provided is a method of treating an area affected by a trauma, such as a corneal wound or internal trauma, comprising administering to the affected area a trauma treating effective amount of a composition comprising a polyanionic polymer.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: March 29, 2005
    Assignee: Life Medical Sciences, Inc.
    Inventors: Richard Franklin, Didier S P Cowling, Jeffrey A. Hubbell, Petra van de Wetering
  • Patent number: 6870012
    Abstract: A composition exhibiting reverse thermal gellation properties comprises a block polymer having the structure: {[An(BCB)An]}m wherein A is a polyester unit, B is a poly(ethylene oxide) unit, C is a poly(propylene oxide) unit, E is a chain extender unit, n=0-20, and m is greater than 2. The ethylene oxide:propylene oxide ratio ranges from about 0.2:1 to about 40:1. The composition has a final viscosity at a final temperature of more than twice the initial viscosity at an initial temperature wherein the final temperature is at least 10° C. higher than the initial temperature. The composition is combined with either a cellular material for tissue engineering, a cellular material for effecting repair or healing in a patient, or a bioactive agent.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: March 22, 2005
    Assignee: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Avraham Levi
  • Publication number: 20040156819
    Abstract: The present invention relates to a method for reducing adhesions associated with post-operative surgery. The present method comprises administering or affixing a polymeric composition preferably comprising chain extended, coupled or crosslinked polyester/poly(oxyalkylene) ABA triblocks or AB diblocks having favorable EO/LA ratios to a site in the body which has been subjected to trauma, e.g. by surgery, excision or inflammatory disease. In the present invention, the polymeric material provides a barrier to prevent or reduce the extent of adhesions forming.
    Type: Application
    Filed: December 31, 2003
    Publication date: August 12, 2004
    Applicant: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Eli Pines, Anna Hotovely
  • Patent number: 6696499
    Abstract: The present invention relates to a method for reducing adhesions associated with post-operative surgery. The present method comprises administering or affixing a polymeric composition preferably comprising chain extended, coupled or crosslinked polyester/poly(oxyalkylene) ABA triblocks or AB diblocks having favorable EO/LA ratios to a site in the body which has been subjected to trauma, e.g. by surgery, excision or inflammatory disease. In the present invention, the polymeric material provides a barrier to prevent or reduce the extent of adhesions forming.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: February 24, 2004
    Assignee: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Eli Pines, Anna Hotovely
  • Patent number: 6579951
    Abstract: A composition exhibiting reverse thermal gellation properties comprises a block polymer having the structure: {[An(BCB)An]}m wherein A is a polyester unit, B is a poly(ethylene oxide) unit, C is a poly(propylene oxide unit, E is a chain extender or crosslinking agent unit, n ranges from 0 to 20, and m is greater than 2, said block polymer possessing an EO (ethylene xide):PO (propylene oxide) ratio ranging from about 0.2:1 to about 40:1, said composition having a final viscosity at a final temperature of more than twice the initial viscosity at an initial temperature, said final temperature being at least 10° C. higher than said initial temperature.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: June 17, 2003
    Assignee: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Avraham Levi
  • Publication number: 20010009662
    Abstract: The present invention relates to novel bioabsorbable polymeric compositions based upon AB polyester polyether or related diblocks and triblocks. Compositions according to the present invention may be used in medical applications, for example, for reducing or preventing adhesion formation subsequent to medical procedures such as surgery, for producing surgical articles including stents and grafts, as coatings, sealants, lubricants, as transient barriers in the body, for materials which control the release of bioactive agents in the body, for wound and bum dressings and producing biodegradable articles, among numerous others.
    Type: Application
    Filed: March 13, 2001
    Publication date: July 26, 2001
    Applicant: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Theodor Stern, Avraham Levi
  • Patent number: 6211249
    Abstract: The present invention relates to novel bioabsorbable polymeric compositions based upon AB polyester polyether or related diblocks and triblocks. Compositions according to the present invention may be used in medical applications, for example, for reducing or preventing adhesion formation subsequent to medical procedures such as surgery, for producing surgical articles including stents and grafts, as coatings, sealants, lubricants, as transient barriers in the body, for materials which control the release of bioactive agents in the body, for wound and bum dressings and producing biodegradable articles, among numerous others.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: April 3, 2001
    Assignee: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Theodor Stern, Avraham Levi
  • Patent number: 6136333
    Abstract: The present invention relates to a method for reducing adhesions associated with post-operative surgery. The present method comprises administering or affixing a polymeric composition preferably comprising chain extended, coupled or crosslinked polyester/poly(oxyalkylene) ABA triblocks or AB diblocks having favorable EO/LA ratios to a site in the body which has been subjected to trauma, e.g. by surgery, excision or inflammatory disease. In the present invention, the polymeric material provides a barrier to prevent or reduce the extent of adhesions forming.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: October 24, 2000
    Assignee: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Eli Pines, Anna Hotovely
  • Patent number: 5895656
    Abstract: The present invention relates to the treatment of keloid and hypertrophic scars by covering the scar with a gas-or gel-filled cushion made of smooth or textured silicone sheeting. It relates particularly to a cushion in the form of a hollow bag filled with completely dry air, inert gel or an inert gas. The invention also relates to a silicone sheeting cushion enclosing silicone beads, polymeric pieces or bodies made of polyfluoroethylene sheeting or a related polymer which produces a negative static charge or, preferably, a silicone sponge or hydrophobic gel, most preferably silicone gel.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: April 20, 1999
    Assignee: Life Medical Sciences, Inc.
    Inventors: Bernard Hirshowitz, Ella Lindenbaum, Yaron Har-Shai
  • Patent number: 5711958
    Abstract: The present invention relates to a method for reducing adhesions associated with post-operative surgery. The present method comprises administering or affixing a polymeric composition comprising chain-extended poly(hydroxy-carboxylic acid)/poly(oxyalkylene) ABA triblocks to a site in the body which has been subjected to trauma, e.g. by surgery, excision or inflammatory disease. In the present invention, the polymeric material provides a barrier to prevent or reduce the extent of adhesions forming.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: January 27, 1998
    Assignee: Life Medical Sciences, Inc.
    Inventors: Daniel Cohn, Eli Pines
  • Patent number: 5681561
    Abstract: The present invention relates to compositions and methods for enhancing the success of autologous fat grafting in a patient. The compositions according to the present invention are useful for enhancing autologous fat grafting by improving the survival rate of lipocytes which are injected into a patient as part of a fat grafting procedure. These compositions comprise a fat grafting effective amount of autologous lipocytes in combination with a lipocyte growth effective amount of a non-steroidal anabolic hormone selected from insulin, triiodothyronine/thyroxine (T.sub.3 or T.sub.4), mixtures thereof, and optionally, growth hormone, most preferably a mixture of all three hormones because of the favorable effect these three hormones exhibit in combination to promote autologous fat grafting, the hormones being further combined with a lipocyte growth effective amount of a nutrient medium, preferably a serum free nutrient medium as at least a minimum essential medium.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 28, 1997
    Assignee: Life Medical Sciences, Inc.
    Inventors: Bernard Hirshowitz, Ella Lindenbaum, Yaron Har-Shai
  • Patent number: 5591709
    Abstract: The present invention relates to wound treatment formulations and methods for treating wounds utilizing these formulations. The formulations according to the present invention are useful for treating wounds by accelerating wound healing. These formulations generally comprise an effective amount of a non-steroidal anabolic hormone such as insulin, growth hormone, triiodothyronine, thyroxine or mixtures thereof, in combination with a cellular nutrient medium, preferably MCDB 153.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: January 7, 1997
    Assignee: Life Medical Sciences, Inc.
    Inventor: Ella Lindenbaum
  • Patent number: 5461030
    Abstract: The present invention relates to formulations and methods for treating wounds utilizing these formulations. The formulations according to the present invention are useful for treating wounds by accelerating wound healing. These formulations comprise an effective amount of a serum free cellular nutrient medium in combination with an effective amount of at least one cellular growth stimulating compound, e.g. a natural anabolic hormone or transforming growth factor.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: October 24, 1995
    Assignee: Life Medical Science, Inc.
    Inventor: Ella Lindenbaum
  • Patent number: 5263971
    Abstract: An apparatus for closing wide skin defects may include two long pins for insertion underneath the skin close to the margins of the defect. Two U-shaped members may also be provided. Each U-shaped member may include a sharp hook at the end of each leg adapted to pierce the skin and to engage one pin each in two places. A contracting screw may connect the two members and approximate the pins and the skin margins until final closure of the defect. A parallel alignment mechanism may also be provided to maintain the U-shaped members in parallel alignment.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: November 23, 1993
    Assignee: Life Medical Sciences, Inc.
    Inventors: Bernard Hirshowitz, Amnon Levy
  • Patent number: D352356
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: November 8, 1994
    Assignee: Life Medical Sciences, Inc.
    Inventors: Bernard Hirshowitz, Amnon Levy