Granted Patent B2

US 12,708,417 · App. 17/823,846 · Granted Aug 18, 2026

Inventors: Jason Chan (Dresher, PA); Ganesan Murugesan (Warsaw, IN); Abhishek Ekbote (Conshohocken, PA); Muruganandarn Mani (West Chester, PA); Dhilip Thiruppathi (Leeds, GB); Sivakumar Anbazhagan (Chennai, IN)

Assignee: DEPUY SYNTHES PRODUCTS, INC.

A61B17/8635A61B17/863

Abstract

Claims (11)

1 . A medical screw, comprising:

a first region comprising a constant diameter root with a first diameter and a constant pitch thread;

a second region comprising a constant diameter root with the first diameter and a variable thread pitch that joins continuously to the constant pitch thread; and

a third region having a tapered root with a tapered diameter and a variable pitch thread that joins continuously to the variable pitch thread of the second region;

wherein the second region comprises more than one turn of the thread with a variable thread pitch;

wherein the screw is a single threaded screw.

2 . The medical screw of claim 1 , further comprising a cutting tip on the first region.

3 . The medical screw of claim 1 , further comprising a driving feature on the third region.

4 . The medical screw of claim 1 , wherein the first region is a distal region and is adjacent the second region at one end thereof.

5 . The medical screw of claim 4 , wherein the third region is a proximal region and is adjacent the second region at the other end thereof.

6 . The medical screw of claim 4 , wherein a largest root diameter in the third region is greater than or equal to an outer diameter of the constant pitch thread in the first region.

Continuity (1)

References Cited (149)