Patent Number: 7,611,542

Title: Tissue treatment

Abstract: A method of treating tissue includes placing substantially spherical polymer particles in the tissue. The particles include an interior region having relatively large pores and a first region substantially surrounding the interior having fewer relatively large pores than the interior region.

Inventors: Bourne; George (Southboro, MA), Buiser; Marcia S. (Watertown, MA), Casey, II; Thomas V. (Grafton, MA), Keenan; Steve (Framingham, MA), Lanphere; Janel L. (Pawtucket, RI), Li; Jianmin (Lexington, MA), McKenna; Erin P. (Boston, MA), Minasian; Zarouhi (Bedford, MA), Rao; Doreen (Sudbury, MA)

Assignee: Boston Scientific SciMed, Inc.

International Classification: A61F 2/36 (20060101)

Expiration Date: 1/03/02017