Sequence and task analysis of instrument use in common laparoscopic procedures

N. Y. Mehta, Randy Haluck, Mary I. Frecker, A. J. Snyder

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Background: In the area of instrument evaluation, one aspect that still requires objective assessment is the dynamics of instrument maneuver and exchange. If we could gain a better understanding of these phenomena, we could improve the design of the instruments themselves. Methods: A total of 29 laparoscopic procedures were videotaped and reviewed using time motion analysis. Instrument multifunctionality was determined using a standardized list of laparoscopic maneuvers. State transition diagrams were utilized to document the sequence of instrument exchanges. Results: The curved dissector, atraumatic grasper, and cautery scissors were identified as the most multifunctional instruments; each was able to perform five distinct maneuvers. Instrument sequences were found to consist of a three-part dissect → clip → cut cycle and a two-part dissect → suction cycle of instrument exchange. Conclusion: This study demonstrated that laparoscopic instruments are often used to perform a variety of maneuvers in addition to their primary function. Furthermore, there are common patterns in instrument exchange that provide a potential source of design parameters for improved surgical efficiency.

Original languageEnglish (US)
Pages (from-to)280-285
Number of pages6
JournalSurgical Endoscopy and Other Interventional Techniques
Volume16
Issue number2
DOIs
StatePublished - Feb 11 2002

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Sequence Analysis
Cautery
Suction
Surgical Instruments

All Science Journal Classification (ASJC) codes

  • Surgery

Cite this

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Sequence and task analysis of instrument use in common laparoscopic procedures. / Mehta, N. Y.; Haluck, Randy; Frecker, Mary I.; Snyder, A. J.

In: Surgical Endoscopy and Other Interventional Techniques, Vol. 16, No. 2, 11.02.2002, p. 280-285.

Research output: Contribution to journalArticle

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