Polymeric screws and coatings for surgical uses

Abstract

Abstract 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).

Inventors

• 👤 Alan Attridge Small
• 👤 Gerard Stephen Carlozzi
• 👤 Richard P. Rego, Jr.
• 👤 Peter Kendrick Jarrett

Bibliographic Details