Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Feedback Inhibition00:46

Feedback Inhibition

57.1K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
57.1K
Feedback Loops01:01

Feedback Loops

64.4K
In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.
64.4K
Effects of feedback01:24

Effects of feedback

1.0K
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
1.0K
Feedback control systems01:26

Feedback control systems

720
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
720
Facial Feedback Hypothesis01:24

Facial Feedback Hypothesis

661
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
661
Cell Signaling Feedback Loops01:07

Cell Signaling Feedback Loops

7.4K
Positive and negative feedback loops are crucial for regulating biological signaling systems. These feedback loops are processes that connect output signals to their inputs.
Negative feedback loops
Most signaling systems have negative feedback loops that can perform different functions such as output limiter, and adaptation.
Output limiter
Upon receiving an input signal, the cellular response rapidly increases until a threshold is reached. Beyond this threshold, a negative feedback loop...
7.4K

You might also read

Related Articles

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

Sort by
Same author

E74 Is Involved in the Regulation of Chitin Biosynthesis and Development of the Cigarette Beetle, Lasioderma serricorne.

Archives of insect biochemistry and physiology·2025
Same author

Liver lesion segmentation in ultrasound: A benchmark and a baseline network.

Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society·2025
Same author

Efficient Breast Lesion Segmentation From Ultrasound Videos Across Multiple Source-Limited Platforms.

IEEE journal of biomedical and health informatics·2025
Same author

IMPROVED PORTABLE INSTRUMENT TRACKING SYSTEM FOR SURGICAL TRAINING.

Proceedings of the ... Design of Medical Devices Conference. Design of Medical Devices Conference·2024
Same author

Cascaded Inner-Outer Clip Retformer for Ultrasound Video Object Segmentation.

IEEE journal of biomedical and health informatics·2024
Same author

Advances of surgical robotics: image-guided classification and application.

National science review·2024
Same journal

Toward real-time alignment of 3D CT and 2D X-ray with multi-stage CNNs.

Computer assisted surgery (Abingdon, England)·2026
Same journal

DMRNet: a dynamic multi-scale residual network for Shamrock view and lumbar plexus segmentation.

Computer assisted surgery (Abingdon, England)·2026
Same journal

Association between preoperative serum albumin levels and the incidence of postoperative nausea and vomiting in patients undergoing laparoscopic surgery: a single-center retrospective cohort study.

Computer assisted surgery (Abingdon, England)·2026
Same journal

An automatic detection model for spread through air spaces in postoperative pathological sections based on deep learning in NSCLC.

Computer assisted surgery (Abingdon, England)·2026
Same journal

Leg positioner improves efficiency on selected steps in robotic-assisted total knee arthroplasty: an analysis of surgical workflow efficiency and team experience.

Computer assisted surgery (Abingdon, England)·2026
Same journal

Development of an in silico hybrid model for scoliosis correction using Ansys Motion.

Computer assisted surgery (Abingdon, England)·2026
See all related articles

Related Experiment Video

Updated: Jan 30, 2026

Robotics in Surgery: A Modular Robotic Platform Driven Gastric Wedge Resection
07:27

Robotics in Surgery: A Modular Robotic Platform Driven Gastric Wedge Resection

Published on: February 7, 2025

1.1K

A sensorless force-feedback system for robot-assisted laparoscopic surgery.

Baoliang Zhao1, Carl A Nelson2

  • 1Shenzhen Key Laboratory of Minimally Invasive Surgical Robotics and System, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen , China.

Computer Assisted Surgery (Abingdon, England)
|January 22, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel sensorless force feedback system for surgical robots, enhancing tactile information during laparoscopic surgery. The system accurately differentiates tissue stiffness and aids in tumor detection, improving surgical precision.

Keywords:
Surgical robotlaparoscopic surgerysensorless force feedbackteleoperation system

More Related Videos

Robot-assisted Partial Splenectomy
08:34

Robot-assisted Partial Splenectomy

Published on: January 2, 2026

541
Technical Detail for Robot Assisted Pancreaticoduodenectomy
14:45

Technical Detail for Robot Assisted Pancreaticoduodenectomy

Published on: September 28, 2019

15.5K

Related Experiment Videos

Last Updated: Jan 30, 2026

Robotics in Surgery: A Modular Robotic Platform Driven Gastric Wedge Resection
07:27

Robotics in Surgery: A Modular Robotic Platform Driven Gastric Wedge Resection

Published on: February 7, 2025

1.1K
Robot-assisted Partial Splenectomy
08:34

Robot-assisted Partial Splenectomy

Published on: January 2, 2026

541
Technical Detail for Robot Assisted Pancreaticoduodenectomy
14:45

Technical Detail for Robot Assisted Pancreaticoduodenectomy

Published on: September 28, 2019

15.5K

Area of Science:

  • Robotics
  • Surgical Technology
  • Haptic Feedback

Background:

  • Existing surgical robots for laparoscopic surgery lack adequate force feedback, hindering tactile sensation.
  • Traditional sensor-based force feedback solutions present numerous challenges in implementation and reliability.

Purpose of the Study:

  • To develop and validate a teleoperation surgical system with sensorless force feedback for robot-assisted laparoscopic surgery.
  • To evaluate the system's effectiveness in enabling surgeons to regain tactile information and improve tissue differentiation.

Main Methods:

  • A teleoperation surgical system was constructed, estimating tool-tissue interaction forces using driving motor current.
  • A position-force bilateral control algorithm was implemented to provide force feedback to the master robot.
  • Stiffness differentiation and tumor detection experiments were conducted to assess system performance.

Main Results:

  • The system achieved a 96% success rate in correctly identifying stiffness differences between tissues (43 out of 45 pairs).
  • In tumor detection tasks, 80% of participants successfully located the tumor using the force feedback system (4 out of 5).

Conclusions:

  • The proposed sensorless force-feedback system effectively restores tactile sensation for surgeons in robot-assisted laparoscopic procedures.
  • This technology can significantly aid surgeons in distinguishing between healthy and cancerous tissues, potentially improving diagnostic accuracy and surgical outcomes.