Efficacy and Safety Evaluation of Vi-sealer

Efficacy and Safety Evaluation of Advanced Vessel Sealing Device (Vi-sealer)

This study's primary goal is to compare the efficacy and safety of the novel advanced hemostatic device(AHD), Vi-Sealer, with conventional AHDs in laparoscopic total hysterectomy for patients with benign gynecologic neoplasm.

Vi-Sealer is a reusable advanced bipolar electrode with an interchangeable blade. This study evaluates the efficacy and safety of the Vi-Sealer by comparing it with other advanced hemostatic devices, such as Ligasure, Enseal, Thunderbeat, Harmonic scalpel, etc. The economic evaluation of the device compared with other disposable devices would also be conducted.

Inclusion Criteria:

1. Aged 20 to 65 years
2. Clinically diagnosed with benign gynecologic neoplasms (eg. adenomyosis, uterine fibroids, etc.)
3. Eligible for hysterectomy
4. Signing an written consent form indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study prior to any other study-related assessments or procedure

Exclusion Criteria:

1. Large uterus size over 16 weeks of gestational age
2. Cervical or intraligamentary fibroids
3. Severe endometriosis (stage 3 or 4)
4. Suspected malignancy of the uterus or adnexa
5. Contraindicated for the use of energy devices (such as implantable cardioverter defibrillators, pacemakers)
6. Previous pelvic surgery ≥ 3 times
7. Not suitable for laparoscopic surgery