§
Luxuse
Patent Intelligence
Sign In
Patent DE3936703C2 successfully refreshed from Google Patents.
← Back to Patent Explorer
DE3936703C2 Expired / Lapsed DE ⏱️ 0.0 years remaining

DE3936703C2 - - Google Patents

Assignee: Individual
•
Filing: 1989-11-03
•
Granted: 1992-09-10
•
Expires: 2009-11-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PCT No. PCT/EP90/01835 Sec. 371 Date Jun. 28, 1991 Sec. 102(e) Date Jun. 28, 1991 PCT Filed Nov. 2, 1990 PCT Pub. No. WO91/06252 PCT Pub. Date May 16, 1991.A bone screw (1) has a threaded portion (2) and a head (3). Such screws are used in particular as pedicle screws. In order that the bone screw can be anchored securely also in soft bone tissue, the screw is provided with a longitudinal bore (5) extending along the longitudinal axis of the threaded portion (2), the longitudinal bore (5) being provided with a tapered portion (7) opposite to the head (3). In this region of the screw, slits are extending parallel to the threaded portion and an interior thread is provided. An expander part (12) having a tip (14) forming the point of the screw and a shaft (16) having a threaded portion (17) cooperating with said interior thread are provided.

Inventors

  • 👤 Lutz 7730 Villingen-Schwenningen De Biedermann
  • 👤 Juergen Prof. Dr. 7517 Waldbronn De Harms

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-23 19:13
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/686; A61B17/84; A61B17/86; A61B17/8685; A61B17/70; A61B17/7001; A61B17/7035; A61B17/7037

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag