Patent · US Expired

Tissue formation by injecting a cell-polymeric solution that gels in vivo

US6730298B2 · kind B2 · utility

45Cited by
14References
17Claims
0Family size

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Key dates

Filing dateJan 20, 1998
Grant dateMay 4, 2004
Priority date
Expiry dateJan 20, 2018

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61L2400/06
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Slowly polymerizing polysaccharide hydrogels have been demonstrated to be useful as a means of delivering large numbers of isolated cells via injection. The gels promote engraftment and provide three dimensional templates for new cell growth. The resulting tissue is similar in composition and histology to naturally occurring tissue. This method can be used for a variety of reconstructive procedures, including custom molding of cell implants to reconstruct three dimensional tissue defects, as well as implantation of tissues generally.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.