2-Piece Orthopedic Headpost System

A metal mechanical component with multiple holes, along with a large bolt, a smaller bolt, and a threaded insert, all arranged on a white background.

Components

Psarou et al., 2023

A metal bicycle crankset with a chainring and a spindle attached, viewed from above.

Assembled

Assembly sequence

A metallic, circular device with multiple adjustable arms extending outward, each with holes at the ends, and a central screw with a locking mechanism.

Subcutaneous phase

Cutaneous puncture

3D model of a bicycle chainring with a crank arm above it, rendered in purple and grey.
A digital illustration of a syringe with a needle, plunger, and a small chain at the tip.
A 3D rendering of a mechanical part, featuring a circular base with multiple elongated arms extending outward and a central hexagonal hole, with a metal nut floating above the assembly.
Digital rendering of a mechanical component with a central cylindrical rod mounted on a multi-lobed base

Guide rod

Mounting to connecting rod

A 3D-rendered medical syringe with a transparent barrel, a plunger with a textured grip, and a needle attached at the bottom, positioned diagonally.
  • Made from biocompatible Titanium

  • 2 step orthopedic implantation

  • Custom leg geometries available

  • Leg surfaces roughened to promote osseointegration

  • Uses low profile Titanium bone screws

  • Small percutaneous implant

  • Safe and easy attachment mechanism

  • Pricing:

    • Headpost: Based on design and quantity

    • Cutaneous Trephine: $1,000

    • Connecting Rod: $1,800

A metallic component with a central threaded hollow cylinder and eight flexible arms with holes, resembling a mounting or connector part.

Percutaneous phase

A 3D model of a bicycle derailleur hanger with a chain attached, viewed from a slight angle.
Exploded view of a mechanical assembly showing a purple star-shaped component with multiple holes, a gray cone-shaped connector with internal threading, and a gray bolt with a hexagonal socket head.
A 3D model of a bicycle dropper seatpost with a chain coiled around its base.

Cutaneous

Trephine

Two metallic damper rods with adjustable knobs on top and an additional thin rod on the right side.
Medical syringe with a needle laying on a surface, viewed from an angle.