Related Experiment Video
Updated: Jul 2, 2026

08:26
Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
Published on: March 24, 2023
Natural Orifice Surgery: Transdouglas surgery--a new concept
Michael Stark1, Tahar Benhidjeb
1The New European Surgical Academy, Berlin, Germany.
JSLS : Journal of the Society of Laparoendoscopic Surgeons
|September 4, 2008
Summary
Natural Orifice Surgery (NOS) offers a safer, simpler surgical approach using the body's natural openings. Transvaginal/transdouglas access via the Transdouglas Endoscopic Device (TED) shows promise for women's procedures, enhancing patient safety.
Area of Science:
- Minimally Invasive Surgery
- Surgical Innovation
- Gastroenterology & Hepatology
Background:
- Laparoscopic surgery became standard in the 20th century, but Natural Orifice Surgery (NOS) offers a potentially safer and simpler alternative.
- The New European Surgical Academy (NESA) focuses on NOS, particularly transvaginal/transdouglas access in women.
- Existing natural body openings are utilized for diagnostic and surgical procedures, avoiding abdominal wall penetration.
Purpose of the Study:
- To introduce the Transdouglas Endoscopic Device (TED), a novel instrument for natural orifice surgery.
- To evaluate the feasibility of transvaginal/transdouglas access for various surgical procedures in women.
Main Methods:
- Design of the Transdouglas Endoscopic Device (TED), a flexible, multichannel instrument for single-entry procedures.
- Development of S-shaped and U-shaped configurations of the TED to navigate to the upper and lower abdomen, respectively.
- Simulation of various surgical and gynecological procedures using the TED, with preclinical studies planned.
Main Results:
- The TED's multichannel design (35 mm diameter) allows simultaneous instrument use, avoiding hybrid procedures.
- Successful simulation of multiple surgical and gynecological procedures has been achieved.
- Manufacturing of the TED is underway, with preclinical studies to follow.
Conclusions:
- Transvaginal/transdouglas surgery is a promising alternative to traditional endoscopic procedures for women.
- Natural Orifice Surgery (NOS) is expected to enhance patient safety through innovative, high-quality procedures performed by interdisciplinary teams.

