Unintentional Movements During the Use of Vitreoretinal Forceps.

ABSTRACT:

Purpose

Intraocular forceps used in vitreoretinal surgery are actuated by squeezing their handles. We studied the relationship between actuation and any accompanying unintentional movements of the instrument tip, and compared different handle designs and gauges.

Methods

Optical sensors were used to measure involuntary movements of forceps tips while monitoring the extent of actuation. Mean root mean square (RMS) and ranges of signals obtained from sensors were computed before and after applying high (7-13 Hz) and low (<5 Hz) frequency filters. Four handle designs, two gauge sizes, and two users were compared to each other.

Results

In the absence of human contact, mean RMS of noise was 6.47 μ and mean range was 21.67 μ. When the forceps were held by the surgeon but kep

SUBMITTER: Dogramaci M 

PROVIDER: S-EPMC6314061 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature