Abstract This article introduces the Hatem spade face-lift scissors (HSFS) which are a modification of spatula-tipped originally proposed by Trepsat. tool can be used for safe blunt dissection in facelift surgery and is available three sizes based on surgeon preference. Other tools exist such as dilation wands Dilson Luz dissectors Viterbo. These well suited dissection, however fine sub-SMAS we...

BACKGROUND The shape of laparoscopic instrument handles can cause physical discomfort. This problem may be ascribed to a lack of standards for instrument design. In this study, new ergonomic requirements for the design of laparoscopic dissection forceps were created. Three representative handles (a Karl Storz [click-line] scissors handle, an Access Plus scissors handle, and an Aesculap cylindri...

Intelligent Scissors and Intelligent Paint are complementary interactive image segmentation tools that allow a user to quickly and accurately select objects of interest using simple gesture motions with a mouse. With Intelligent Scissors, when the cursor position comes in proximity to an object edge, a live-wire boundary “snaps” to, and wraps around the object of interest. The Intelligent Paint...

In this letter, we investigate the population dynamics in a May-Leonard formulation of rock-paper-scissors game which one or two species, shall refer to as "weak", have reduced predation reproduction probability. We show that nonspatial model stationary solution where all three species coexist is always unstable, while spatial stochastic coexistence possible for wide parameter space. find, prob...