Patent · US Active

Screw extraction shaft

US11426225B2 · kind B2 · utility

0Cited by

6References

10Claims

0Family size

Assignee

DePuy Synthes Products, Inc. · US

Inventors

Simon Scherrer · Zürich, CH
Mario Wyss · Egerkingen, CH
Gregor Spreiter · Zuchwil, CH

Key dates

Filing date	Dec 3, 2019
Grant date	Aug 30, 2022
Priority date	—
Expiry date	May 16, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/921
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A bone screw extraction device includes a shaft extending longitudinally from a proximal end to a distal tip, a distal portion of the shaft including a tissue-receiving cavity extending proximally thereinto from the distal tip, the distal tip including a plurality of fingers configured to be received within a driving recess of a bone screw and a plurality of channels extending longitudinally along an exterior surface of the distal portion, each of the plurality of channels extending between adjacent ones of the plurality of fingers.

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