Resources Contact Us Home
Photopolymerizable biodegradable hydrogels as tissue contacting materials and controlled-release carriers

Image Number 15 for United States Patent #5626863.

Hydrogels of polymerized and crosslinked macromers comprising hydrophilic oligomers having biodegradable monomeric or oligomeric extensions, which biodegradable extensions are terminated on free ends with end cap monomers or oligomers capable of polymerization and cross linking are described. The hydrophilic core itself may be degradable, thus combining the core and extension functions. Macromers are polymerized using free radical initiators under the influence of long wavelength ultraviolet light, visible light excitation or thermal energy. Biodegradation occurs at the linkages within the extension oligomers and results in fragments which are non-toxic and easily removed from the body. Preferred applications for the hydrogels include prevention of adhesion formation after surgical procedures, controlled release of drugs and other bioactive species, temporary protection or separation of tissue surfaces, adhering of sealing tissues together, and preventing the attachment of cells to tissue surfaces.

  Recently Added Patents
Processes for making high purity renewable source-based plasticizers and products made therefrom
PCI-express data link transmitter employing a plurality of dynamically selectable data transmission priority rules
Integrated near-to-eye display module
Percutaneous administration device of bisoprolol
Method for guiding current in a light emitting diode (LED) device
Analogs of benzoquinone-containing ansamycins and methods of use thereof
System and method for unique digital asset identification and transaction management
  Randomly Featured Patents
High pressure pump having integral start valve
Sleeve for personal massager
Catalyzed interfacial polycondensation polycarbonate process
Housing for portable telephone or similar article
Combination holder for displaying a phonograph and a decorative wall display frame
Structural member to be used in apparatus for manufacturing semiconductor or flat display, and method for producing the same
Vehicle for beach cleaning
IV pole
Footwear sole with antenna
Nondispersive infrared gas analysis device