Laparoscopic Trocar
Laparoscopic Trocar - Related Videos
10:31
Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
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Cited by 12 •
2016
In early gastric cancer, the aim of surgery is to precisely remove the distal stomach including the primary tumor. To do this, accurate localization of the tumor is crucial, especially in totally laparoscopic surgery. This protocol describes a procedure for intraoperative gastroscopy in totally laparoscopic subtotal gastrectomy.
05:58
Surgical Trunk Oriented Laparoscopic Right Hemicolectomy (ST-LRH) for Right-Sided Colon Cancer
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2025
This protocol describes Surgical Trunk-oriented Laparoscopic Right Hemicolectomy (ST-LRH), a modified laparoscopic right hemicolectomy designed to optimize vascular management and lymph node dissection, simplify surgical procedures, and improve surgical safety and efficiency.
08:06
Laparoscopic Ovum Pick-up For In Vivo Oocyte Retrieval In Alpacas
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2026
This protocol describes a reproducible method for in vivo oocyte recovery in alpacas using hormonal synchronization, FSH superstimulation, and laparoscopic ovum pick-up (LOPU). The procedure yields consistent follicular responses and efficient oocyte recovery, supporting applications for in vitro embryo production and advanced reproductive biotechnologies.
08:21
Utilizing a 3D Printed Laparoscopic Nissen Fundoplication Model to Shorten a Resident's Learning Curve
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2025
This study describes how 3D printed models effectively accelerate the rate at which advanced laparoscopic surgery skills used in Nissen Fundoplication are mastered by surgical residents during residency training, thereby enhancing future preparedness.
04:02
Laparoscopic Cholecystectomy with Indocyanine Green Fluorescence: Choledochoscopic Stone Extraction and Primary Duct Suture
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2025
The integrated technique described in this protocol achieves real-time biliary mapping via indocyanine green (ICG) fluorescence, minimally invasive stone clearance under direct visualization, and secure primary duct repair (6-0 PDS), eliminating T-tube drainage.
FAQs
The obturator provides the penetrating component that passes through the abdominal wall, while the hollow cannula remains in place as the access channel. Once the obturator is removed, the cannula can accommodate a laparoscopic camera or surgical instrument. This paired design allows surgeons to establish a working route while preserving a protected passage through the abdominal wall.
Pneumoperitoneum expands the abdominal cavity, usually through carbon dioxide, before or during trocar-based access. The resulting space separates the abdominal wall from internal structures and supports visualization and instrument movement. Trocars then help maintain access through the expanded cavity, allowing laparoscopic procedures to proceed through small abdominal entry sites rather than a larger incision.
Design, placement, and safety features affect how reliably a trocar supports visualization and instrument control. Appropriate placement establishes useful access while helping limit tissue disruption and access-related complications. Because trocars pass through the abdominal wall and remain available for instruments, their characteristics influence both the surgeon’s working range and the stability of the laparoscopic setup.
A typical access sequence begins with establishing pneumoperitoneum, usually using carbon dioxide, to expand the abdominal cavity. The obturator then penetrates the abdominal wall while the cannula creates the continuing access route. After entry, the obturator is removed, leaving the cannula available for a camera or instrument during the minimally invasive procedure.
Trocar-based laparoscopic access supports procedures through smaller abdominal entry sites, which can help limit incision size and tissue disruption. The cannula also maintains a route for repeated camera or instrument passage during surgery. These characteristics support visualization and instrument control while contributing to the minimally invasive approach used across several surgical specialties.
Laparoscopic trocars support minimally invasive procedures in gynecologic, general, and urologic medicine. Across these fields, they provide access for cameras and surgical instruments after the abdominal cavity has been expanded with pneumoperitoneum. Their relevance extends beyond a single operation because trocar placement and safety features influence visualization, instrument handling, and access-related outcomes across different laparoscopic procedures.