• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

SAGES

Reimagining surgical care for a healthier world

  • Home
    • COVID-19 Annoucements
    • Search
    • SAGES Home
    • SAGES Foundation Home
  • About
    • Who is SAGES?
    • SAGES Mission Statement
    • Strategic Plan, 2020-2023
    • Committees
      • Descriptions and Video Updates
      • Request to Join a SAGES Committee
      • SAGES Board of Governors
      • Officers and Representatives of the Society
      • Committee Chairs and Co-Chairs
      • Full Committee Rosters
      • SAGES Past Presidents
    • Donate to the SAGES Foundation
    • Awards
      • George Berci Award
      • Pioneer in Surgical Endoscopy
      • Excellence In Clinical Care
      • International Ambassador
      • IRCAD Visiting Fellowship
      • Distinguished Service
      • Early Career Researcher
      • Researcher in Training
      • Jeff Ponsky Master Educator
      • Excellence in Medical Leadership
      • Barbara Berci Memorial Award
      • Brandeis Scholarship
      • Advocacy Summit
      • RAFT Annual Meeting Abstract Contest and Awards
  • Meetings
    • COVID-19 Announcements
    • SAGES 2020 Meeting Information
    • 2021 Scientific Session Call For Abstracts
    • 2021 Emerging Technology Session Call For Abstracts
    • 2018 Prevent BDI Consensus Conference
    • CME Claim Form
    • Industry
      • Advertising Opportunities
      • Exhibit Opportunities
      • Sponsorship Opportunities
    • Future Meetings
    • Past Meetings
      • Leadership Development and Health Policy Conference Videos
      • SAGES Quality Summit Meeting
      • SAGES 2019
      • SAGES 2018
      • SAGES 2017
      • SAGES 2016
      • SAGES 2015
      • SAGES 2014
      • SAGES 2013
    • Related Meetings Calendar
  • Membership
    • Membership Benefits
    • Membership Applications
      • Active Membership
      • Affiliate Membership
      • Associate Active Membership
      • Candidate Membership
      • International Membership
      • Medical Student Membership
    • Member News
      • Member Spotlight
      • Give the Gift of SAGES Membership
  • Patients
    • Healthy Sooner – Patient Information for Minimally Invasive Surgery
    • Patient Information Brochures
    • Choosing Wisely – An Initiative of the ABIM Foundation
    • All in the Recovery: Colorectal Cancer Alliance
    • Find a SAGES Member
  • Publications
    • COVID-19 Annoucements
    • SAGES Clinical / Practice / Training Guidelines, Statements, and Standards of Practice
    • Patient Information Brochures
    • TAVAC – Technology and Value Assessments
    • Surgical Endoscopy and Other Journal Information
    • SAGES Manuals
    • SCOPE – The SAGES Newsletter
    • Troubleshooting Guides
  • Education
    • SAGES.TV Video Library
    • Virtual Hernia Clinic
    • The SAGES Safe Cholecystectomy Program
    • The Safe Cholecystectomy Didactic Modules
    • Masters Program
      • SAGES Facebook Program Collaboratives
      • Acute Care Surgery
      • Bariatric
      • Biliary
      • Colorectal
      • Flexible Endoscopy (upper or lower)
      • Foregut
      • Hernia
      • Robotics
    • Educational Opportunities
    • The SAGES HPB/Solid Organ Program
    • Courses for Residents
      • Advanced Courses
      • Basic Courses
    • Endorsed Courses
    • SAGES Robotics Fellows Courses
    • MIS Fellows Course
    • Facebook Livestreams
    • Free Educational Webinars For Residents
    • SMART Enhanced Recovery Program
    • SAGES Quality Initiative
    • SAGES OR SAFETY Video
    • SAGES at Cine-Med
      • SAGES Top 21 MIS Procedures
      • SAGES Pearls
      • SAGES Flexible Endoscopy 101
      • SAGES Tips & Tricks of the Top 21
  • Opportunities
    • SAGES Research Opportunities
    • SAGES Endorsed Courses
    • Fundamentals of Laparoscopic Surgery
    • Fundamentals of Endoscopic Surgery
    • Fundamental Use of Surgical Energy
    • Job Board
    • SAGES Go Global: Global Affairs and Humanitarian Efforts
    • Fellowship Certification
  • Search
    • COVID-19 Announcements
    • Search All SAGES Content
    • Search SAGES Guidelines
    • Search the Video Library
    • Search the Image Library
    • Search the Abstracts Archive
  • Blog
    • All Blog Posts
    • COVID-19
    • Notes from the Battlefield
    • A (Positive) Way Forward
    • President Posts
  • Log In

Development Of An Autonomous Smart Graspers To Prevent Tissue Slip During Laparoscopic Surgery

A Brown, S I Brown, PhD, Z Wang, PhD, D I Maclean, PhD, A Cuschieri, Prof

University of Dundee

Objective
During laparoscopic surgery it is often necessary to retract tissue to expose the operative site. We propose a retraction device which will automate this process by detecting slip and modulating the necessary force to retain tissue within the jaws while reducing potential to cause trauma.

Method
Polyvinylidene fluoride (PVDF), a piezoelectric polymer, is under investigation for its suitability for use as a slip sensor in this application. This initial proof of concept study investigates the efficacy of using PVDF for this purpose. Commercial PVDF sensors were coated in a thin rubber to prevent short circuits, following which, the sensors were attached to a novel parallel occlusion tissue graspers, which applies uniform pressure to the tissue, obviating the high ‘pinch’ forces associated with conventional graspers. To determine if the signal from the slip sensor is reproducible and fit for purpose a pilot study was carried out by securing ex vivo pig bowel in the graspers and applying a load (1N, 2N) to the upper jaw. The tissue was retracted at a rate of 3mm/s until it had fallen from the graspers. The sensor voltage data were recorded and analysed to characterise ‘slip’ and ‘no slip’ conditions, ascertained by comparing the voltage-time gradient of the signal during ‘slip’ and ‘no slip’ events.

Preliminary Results
Initial results show that slip is easily detected using PVDF sensors attached to parallel occlusion grasper jaws when comparing slope gradients at both 1N (n=6, p <0.05) and 2N (n=6, p <0.05) applied forces, as shown in graph 1. Thus an increase in gradient of the slope beyond 0.1V/s is detected as slip.

Conclusion

PVDF is thus a viable option to detect slippage of tissue from the jaws of a grasper. When slip is detected by a closed-loop control system in a powered grasper, sufficient force can be automatically generated to stop the slippage of grasped tissue from the jaws. Such an active parallel occlusion device would autonomously grasp tissue while minimising the potential to cause trauma and its novel parallel occlusion mechanism is being developed as the next generation of smart for laparoscopic instruments.

Fig 1: Sensor output when tissue slips from the grasper


Session: Poster Presentation

Program Number: ETP054

Post Views: 192

Share this:

  • Twitter
  • Facebook
  • LinkedIn
  • Pinterest
  • WhatsApp
  • Reddit

Related

« Return to SAGES 2013 abstract archive

Our Mission

Innovate, educate and collaborate to improve patient care.

Recently, on SAGES…

Free SAGES Webinar: Lessons from COVID on Living and Thriving as Surgeons

SAGES recognizes that the COVID-19 pandemic has had a big impact on surgical practice and in surgeon wellness. SAGES’ Reimagining the Practice of Surgery Taskforce will present “Finding the Opportunities: Lessons from COVID and How We Live and Thrive as Surgeons”  to look at ways in which innovative leadership at various levels may help transform […]

Daniel Herron, MD

An opportunity to slow down and appreciate the small joys in life

Dan Herron, MD shares insights with Dana Telem, MD on lessons learned from COVID-19 Fear, anxiety and uncertainty has dominated the first half of 2020. Never before have we, as healthcare providers, been asked to do so much with so little—whether it’s resources like personal protective equipment, dusting off skills related to critical care, or […]

covid testing stock

Notes from the Battlefield – May 14, 2020

Coronavirus Global Surgical Collaborative (CVGSC)* An initiative sponsored by SAGES in collaboration with EAES, AEC, KSELS, and ELSA A group of surgical leaders from affected countries have joined to discuss what they are learning during this Covid-19 Global crisis. The following is a brief summary of what they feel may be useful information to disseminate to the surgical […]

Contact SAGES

Society of American Gastrointestinal and Endoscopic Surgeons
11300 W. Olympic Blvd Suite 600
Los Angeles, CA 90064 USA
webmaster@sages.org
Tel: (310) 437-0544

Find Us Around the Web!

  • Facebook
  • Twitter
  • YouTube

Newsletter Subscription

  • This field is for validation purposes and should be left unchanged.

Important Links

SAGES 2020 Meeting Information

Healthy Sooner: Patient Information

SAGES Guidelines, Statements, & Standards of Practice

SAGES Manuals

 

  • taTME Study Info
  • Foundation
  • SAGES.TV
  • MyCME
  • Educational Activities

[footer_backtotop] · Log in

Copyright © 2021 Society of American Gastrointestinal and Endoscopic Surgeons · Legal
· Managed by BSC Management, Inc