Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Photopolymerizable biodegradable hydrogels as tissue contacting materials and controlled-release carriers










Image Number 14 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
Processing biomass
Metal-containing compositions and method of making same
Pipe coupling
Illumination apparatus for microlithography projection system including polarization-modulating optical element
Method and device for determining processed image data about a surround field of a vehicle
High purity diphenyl sulfone, preparation and use thereof for the preparation of a poly(aryletherketone)
Thin film switch and press key/keyboard using the same
  Randomly Featured Patents
Method of making envelope with tear line formed by ultrasonic energy
Method for inhibiting ADP-induced platelet aggregation using phenylthioalkylamines
Method of controlling hydraulic brake system for vehicle
Electronic reader device
Method for allocating internodal link bandwidth in a packet oriented communication network to guarantee delay quality-of-service
Safety switch assemblies
Phase frequency detectors generating minimum pulse widths
Pump
Process for producing concentrated solutions of hydroxylammonium nitrate and hydroxylammonium perchlorate
Disk drive having a vertically adjustable ramp load