Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: May 28, 2026

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri

Published on: September 12, 2025

Laparoscopic intracorporeal knot tying using a novel device.

Fung-Chao Tu¹, Wen-Yih Wu, Ho-Hsiung Lin

¹Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, No.21, Sec. 2, Nanya S. Rd, Banqiao, New Taipei, 220, Taiwan.

Surgical Endoscopy

|October 14, 2011

Summary

A new device significantly speeds up laparoscopic knot tying by transforming slip knots into secure double sheet bends. This innovation reduces knotting time without affecting knot strength or success rates in surgical procedures.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Derivation and validation of a symptom-anchored diagnostic criterion for nocturnal polyuria in women: aligning with aging physiology.

Menopause (New York, N.Y.)·2026

Same author

Evaluation of photobiomodulation therapy for genitourinary syndrome of menopause: A single-center prospective study.

PloS one·2026

Same author

Crizotinib for refractory vulvar malignant melanoma with equivocal MET amplification: a case report.

Taiwanese journal of obstetrics & gynecology·2026

Same author

Safety and pharmacology of AMY109, a long-acting anti-interleukin-8 antibody, for endometriosis: a double-blind, randomized phase 1 trial.

F&S reports·2025

Same author

Mirabegron nighttime versus daytime dosing for women with overactive bladder syndrome: a randomized controlled trial.

Scientific reports·2025

Same author

Clinical impact of pharmacogenetic risk variants in a large chinese cohort.

Nature communications·2025

Area of Science:

Minimally Invasive Surgery
Surgical Techniques
Biomedical Engineering

Background:

Laparoscopic intracorporeal knot tying is a complex surgical skill.
A novel device was developed to assist in laparoscopic knot tying, converting slip knots to double sheet bends.

Purpose of the Study:

To evaluate the feasibility of using a novel device for laparoscopic knot tying.

Main Methods:

A laparoscopic trainer and artificial skin were used for experimentation.
Twenty device-assisted double sheet bends (experimental) and 20 traditional square knots (control) were performed.
Knot strength was tested using a tensiometer; knotting time and failure rates were compared.

Main Results:

Related Experiment Videos

Last Updated: May 28, 2026

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri

Published on: September 12, 2025

Knot strength and efficiency were comparable between the experimental and control groups (P = 0.51).

The experimental group demonstrated a significantly lower knot failure rate (5% vs. 40%, P = 0.02).

Knotting time was substantially reduced in the experimental group (37.0s vs. 107.0s, P < 0.001).

Conclusions:

The novel device significantly decreases knotting time for laparoscopic intracorporeal knot tying.
The device does not compromise the success rate or strength of the surgical knot.