Assessment of electrosurgical hand controls integrated into a laparoscopic grasper

Bernadette Brown-Clerk, Justin B. Rousek, Bethany R. Lowndes, Sandra M. Eikhout, Bradley J. Balogh, M. Susan Hallbeck

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The aim of this study was to quantitatively and qualitatively determine the optimal ergonomic placement of novel electrosurgical hand controls integrated into a standard laparoscopic grasper to optimize functionality. This device will allow laparoscopic surgeons to hand-operate standard electrosurgical equipment, eliminating the use of electrosurgical foot pedals, which are prone to activation errors and cause uncomfortable body positions for the physician. Three hand control designs were evaluated by 26 participants during the performance of four basic inanimate laparoscopic electrosurgical tasks. Task completion time, actuation force, forearm electromyography (EMG) and user preference were evaluated for each hand control design. Task speed was controlled using a metronome to minimize subject variability, and resulted in no significant completion time differences between task types (P > 0.05). Hand control design 1 (CD 1) resulted in the ability to generate significantly greater actuation force for three of the four tasks (P < 0.05) with minimal forearm muscle activation. Additionally, CD 1 was rated significantly better for comfort and ease-of-use compared to the other two hand control designs (P < 0.05). As a result, CD 1 was determined to be an advantageous ergonomic design for the novel electrosurgical hand controls.

Original languageEnglish (US)
Pages (from-to)321-328
Number of pages8
JournalMinimally Invasive Therapy and Allied Technologies
Issue number6
StatePublished - Dec 2011


  • Electrosurgery
  • Ergonomics
  • Foot pedals
  • Instrument design
  • Laparoscopy

ASJC Scopus subject areas

  • Surgery


Dive into the research topics of 'Assessment of electrosurgical hand controls integrated into a laparoscopic grasper'. Together they form a unique fingerprint.

Cite this