New applicator improves waterjet dissection quality.

Area of Science:

• Neurosurgery
• Surgical Technology
• Medical Devices

Background:

• Waterjet dissection is a key technique in neurosurgery.
• The Helix Hydro-Jet is an established device for waterjet dissection.
• A new device, Erbejet 2, has been developed with improved handling and dissection capabilities.

Purpose of the Study:

• To compare the dissection performance of the Helix Hydro-Jet and the Erbejet 2.
• To evaluate the impact of a new applicator on the Helix Hydro-Jet's performance.
• To assess technical features, cutting depth, and tissue damage.

Main Methods:

• Eighty-four cadaveric pig brains were dissected using both Helix Hydro-Jet and Erbejet 2.
• Standard and new applicators for Helix Hydro-Jet were compared against the Erbejet 2.
• Dissection was performed under standardized conditions with varying pressure levels.

Main Results:

• Microscopic analysis showed distinct dissection characteristics between devices.
• The standard Helix Hydro-Jet applicator resulted in deeper cuts and more foaming than Erbejet 2.
• The new Helix Hydro-Jet applicator yielded less foaming and more controlled, linear cutting depth, similar to Erbejet 2.

Conclusions:

• The new Erbejet 2 applicator significantly improves the performance of the Helix Hydro-Jet.
• While Erbejet 2 offers practical advantages, the enhanced Helix Hydro-Jet achieves comparable dissection quality.
• The combination of Helix Hydro-Jet with its new applicator provides superior dissection qualities.