Polymeric screws and coatings for surgical uses

Details Polymeric screws and coatings for surgical uses Polymeric screws and coatings for surgical uses

A - Human Necessities

61

B

A61B 17/58 (2006.01) A61B 17/86 (2006.01) A61L 31/10 (2006.01) A61L 31/14 (2006.01) A61B 17/00 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2130083

2130083 9315682 PCTABS00024 Polymeric preferably bioabsorbable, interference screws (30, 70, 90) having increased helical thread thickness (TT) and decreased thread depth (TD) relative to corresponding metal insertion screws (10, 50) to provide increased wall thicknesses, which enhances overall rigidity and strength of the absorbable interference screw (30, 70, 90). A proximal region (PR) of the screw (30, 70, 90) increases gradually in diameter (MA, MI) proximally to increase the bite and holding power of the screw (30, 70, 90) as well as to increase wall thickness. The proximal region (PR) increases proximally in at least one of a proximal region minor diameter (PRMI) and a proximal region major diameter (PRMA). Also featured are screws (90) having an absorbable coating (92).

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