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[Spiral trocar--a new trocar concept]
F Krug1, T Berner, D Psathakis
1Klinik für Chirurgie, Universitätsklinikum Lübeck.
Summary
A novel spiral trocar for minimally invasive surgery allows controlled insertion without axial pressure, reducing organ perforation risk. This reusable, cost-effective device offers enhanced safety and usability.
Area of Science:
- Surgical Innovation
- Medical Device Design
Background:
- Introduces a novel spiral trocar designed for minimally invasive surgery.
- Features a unique spiral coil that strengthens towards the center, ensuring a smooth transition between spiral, screw, and rod designs.
- Maintains a consistent outer diameter while enabling controlled insertion.
Purpose of the Study:
- To evaluate the safety and usability of the new spiral trocar.
- To compare the spiral trocar with existing trocar types in both in vivo and in vitro settings.
Main Methods:
- The spiral trocar underwent examination and comparison against other trocar types.
- Testing was conducted using both in vivo and in vitro methodologies.
Main Results:
- The spiral trocar demonstrated a high level of safety during testing.
- The device exhibited good usability in both in vivo and in vitro evaluations.
- The spiral design facilitates controlled insertion, preventing unintentional organ perforation and minimizing trocar site hernias due to overlapping tissue seals.
Conclusions:
- The spiral trocar is easily cleanable and reusable.
- It functions effectively without a mechanical sealing device and is compatible with most sleeves.
- This design presents a cost-effective solution for minimally invasive procedures.