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CompletedNCT04122261Updated Oct 25, 2021

A Clinical Study of Chinese Domestic Surgical Robot

An interventional study of the MicroHand S endoscopic instrument control system and the da Vinci endoscopic instrument control system in Gallstone and Cholecystitis, sponsored by The Third Xiangya Hospital of Central South University. Completed at 1 site in China. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-10-25.

Sponsored by The Third Xiangya Hospital of Central South University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
168
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This is a prospective, multi-center, randomized, single-blind, parallel-controlled clinical trial to evaluate the safety and efficacy of the Chinese domestic endoscopic instrument control system in clinical treatment.

Read the detailed description

To evaluate the safety and efficacy of the Chinese domestic endoscopic instrument control system in clinical treatment.This clinical trial is a prospective, multi-center, randomized, single-blind, parallel-controlled study. The system used in the experimental group is the endoscopic instrument control system developed by WEGO Surgical Robot Co., Ltd., and the system used in the control group is the da Vinci endoscopic instrument control system developed by Intuitive Surgical. Before patients are enrolled in this clinical study, the researchers will do a detailed screening of the subjects based on the inclusion criteria and the exclusion criteria to determine if the patients are appropriate for the clinical study. Patients who meet the conditions of the study will be required to sign an informed consent form. Then they will be randomly assigned to the experimental group or the control group. To evaluate the primary outcome measures and secondary outcome measures and to observe the incidence of organ and vascular injury. Finally, we evaluate the safety and efficacy of the test product through the comparison of the data obtained from the experimental group and the control group during the treatment.

02

Conditions studied

  • Gallstone
  • Cholecystitis
03

In context

Cholecystitis

266 studies on the registry are indexed under Cholecystitis; 46 are open to participants now.

This study's enrollment of 168 is above the median of 86 across 167 interventional studies indexed under Cholecystitis.

Browse Cholecystitis studies →

Lead sponsor

The Third Xiangya Hospital of Central South University is the lead sponsor of 95 studies on the registry; 49 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  1. 18-65 years old, male or female

2 .American Society of Anesthesiologists (ASA): Level 1, Level 2 or Level 3

  1. BMI 18-30Kg/m2
  1. Benign gallbladder diseases such as acute or chronic cholecystitis, gallstones and polypoid lesions of gallbladder
  1. Subjects or their legal representatives/guardians voluntarily participate in clinical trials and have signed informed consent form

Exclusion criteria

Exclusion Criteria:

  1. Participating in any other clinical trial within 30 days before signing the informed consent form
  2. Pregnancy or lactation
  3. With a history of epilepsy or psychosis
  4. With a history of previous operations at related sites
  5. Severe cardiovascular and cerebrovascular diseases with New York grade III-IV cardiac function or pulmonary insufficiency that can't tolerate the operation
  6. Severe liver and kidney insufficiency such as cirrhosis and renal failure
  7. Acute cholecystitis lasting for more than 72 hours, acute cholecystitis with severe complications such as cholecystitis, gangrene, perforation, etc., and gallbladder thickness thicker than 10 mm
  8. Acute cholangitis, gallstone with acute pancreatitis, primary common bile duct stones, intrahepatic bile duct stones and obstructive jaundice
  9. Gallbladder cancer or protuberant lesions are suspected to be cancerous
  10. Severe allergic constitution and suspected or identified addicts to alcohol or drugs
  11. Abdominal infection, peritonitis, diaphragmatic hernia, severe systemic infection or metastatic diseases
  12. Other situations that researchers consider it inappropriate to participate in this clinical trial
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
168 participants (actual)

Study arms

  • Experimental
    experimental group

    MicroHand S robotic surgery group

    Device: the MicroHand S endoscopic instrument control system

  • Experimental
    control group

    da Vinci robotic surgery group

    Device: the da Vinci endoscopic instrument control system

Interventions

  • Devicethe MicroHand S endoscopic instrument control system

    Using the MicroHand S endoscopic instrument control system to treat gallstone or cholecystitis in minimal invasive surgery.

  • Devicethe da Vinci endoscopic instrument control system

    Using the da Vinci endoscopic instrument control system to treat gallstone or cholecystitis in minimal invasive surgery.

06

What researchers measure

Primary outcomes

  1. surgical success rate

    The surgical success rate is defined as the proportion of successfully operative subjects in the experimental group or the control group.

    Time frame: within 24 hours after operation

Secondary outcomes

  1. The breakage rate of gallbladder

    The breakage rate of gallbladder is defined as the proportion of the subjects in the experimental group or the control group with specimen breakage.

    Time frame: within 12 hours after operation

  2. Comprehensive Complication Index (CCI)

    CCI is calculated using online tools provided by http://cci.assessurgery.com. Based on the Clavien-Dindo complications grade system (appendix.1), all complications and adverse events after surgical intervention are taken into consideration. The overall incidence is measured on a scale ranging from 0 (no complication) to 100 (death).

    Time frame: an average of 5 days after operation

  3. Operative time

    The length of time from the beginning of the operation after the robot installation to the end of the suture of the incision.

    Time frame: within 12 hours after operation

  4. Intraoperative bleeding

    The total bleeding volume from the beginning of the operation to the end of the suture of the incision. It can be calculated by measuring the blood volume in the vacuum suction device and weighing the gauze after using them to wipe the bleeding.

    Time frame: within 12 hours after operation

  5. Postoperative pain

    Postoperative pain is assessed by visual analogue scale (VAS) 24-26 hours after the operation, ranging from 0 (no pain) to 10 (maximum pain).

    Time frame: within 24 hours after operation

  6. Time to first flatus

    The time from the end of the operation to the subject's first flatus after surgery.

    Time frame: an average of 2 days after operation

  7. Surgeon's satisfaction

    After the operation, surgeons fill a questionnaire to score the flexibility, intuition and stability of the products, as well as their sense of delay and fatigue when using the products. Each question in the score ranges from 1 to 5 points and the total score is 100.

    Time frame: within 12 hours after operation

  8. Installation time

    The time from the power-on of the products to the end of the connection between trocars and the operative arms.

    Time frame: preoperation

  9. Hospital stay

    The total hospital days of subjects from admission to discharge.

    Time frame: an average of 5 days after operation

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Study locations

1 site
  • The Third Xiangya Hospital of Central South University
    Changsha, Hunan 410013, China
08

References and documents

Publications

  • Wang G, Yi B, Li Z, Zhu L, Hao L, Zeng Y, Zhu S. Micro-Hand Robot-Assisted Versus da Vinci Robot-Assisted Cholecystectomy: A Multi-centre, Randomized Controlled Trial. World J Surg. 2022 Nov;46(11):2632-2641. doi: 10.1007/s00268-022-06668-w. Epub 2022 Jul 20. PubMed 35857076 ↗

Study documents

  • Study protocol · Sep 1, 2019
  • Statistical analysis plan · Sep 1, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 25, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04122261
Lead sponsor
The Third Xiangya Hospital of Central South University
Collaborators
The Affiliated Hospital of Qingdao University
Responsible party
Sponsor
First posted
Oct 10, 2019
Start date
Oct 13, 2019
Primary completion
Oct 1, 2020
Completion
Oct 1, 2021
Last update
Oct 25, 2021

Study contacts

Shaihong Zhu, M.D.
principal investigator · The Third Xiangya Hospital of Central South University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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