Ergonomic T-Handle for Minimally Invasive Surgical Instruments

Area of Science:

• Orthopedic Surgery
• Surgical Instrumentation
• Biomedical Engineering

Background:

• Proximal femur fractures often require surgical intervention with dynamic hip screws.
• Minimally invasive techniques are preferred to reduce patient trauma and improve outcomes.
• Existing surgical tools may lack versatility for specific steps in dynamic hip screw implantation.

Purpose of the Study:

• To design and describe a novel T-handle for minimally invasive dynamic hip screw implantation.
• To outline the dual functionality of the T-handle for surgical manipulation and screw insertion.
• To assess the handle's suitability for various sterilization methods and grip types.

Main Methods:

• Design and conceptualization of a T-handle with specific ergonomic and functional features.
• Description of the T-handle's integration with an angle guide for push-and-hold actions.
• Explanation of the T-handle's use with an insertion wrench and lag screw tap for torque application.

Main Results:

• A T-handle design capable of performing both push-and-hold and torque application functions was developed.
• The handle accommodates both power and precision grips for surgeon comfort and control.
• The design is compatible with both single-use (gamma irradiation) and multiple-use (autoclaving) sterilization methods.

Conclusions:

• The designed T-handle offers a versatile solution for minimally invasive dynamic hip screw procedures.
• Its dual functionality and ergonomic considerations enhance surgical efficiency and applicability.
• The underlying design principles are transferable to a broader range of surgical instrument handles.