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Dilating missile trocar for primary port establishment: a cadaver study
Tanvaa Tansatit1, Wirach Wisawasukmongchol, Suvit Bunyavejchevin
1Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Summary
The novel missile trocar offers controlled entry and smaller incisions, potentially reducing post-operative pain. This surgical device successfully accessed the abdominal cavity in cadaveric studies without complications.
Area of Science:
- Minimally Invasive Surgery
- Surgical Instrumentation
- Abdominal Access Devices
Background:
- Traditional trocar insertion can cause significant fascial defects and post-operative pain.
- Developing surgical instruments with improved control and reduced patient trauma is a key area of surgical innovation.
Purpose of the Study:
- To evaluate the efficacy and safety of a novel missile trocar for abdominal access.
- To assess the feasibility of a rectus sheath-hooking instrument in facilitating trocar insertion.
Main Methods:
- The study involved a missile trocar with a fascial-dilating conical head and a rectus sheath-hooking instrument.
- Negative intra-abdominal pressure was promoted using the hooking instrument to allow room air entry.
- The procedure was tested in 45 fresh cadaveric abdominal access attempts.
Main Results:
- The missile trocar successfully accessed the peritoneal cavity in all 45 attempts.
- No intestinal penetration or need for a second attempt was observed.
- The device facilitated controllable entry and smaller fascial defects.
Conclusions:
- The missile trocar demonstrates potential as an alternative device for primary port establishment.
- Further clinical trials are necessary to confirm its efficacy and safety in human patients.