When searching for the best surgical scissors the market has to offer. Keep in mind that maneuverability and control are essential. Surgical scissors can be used for sharp cuts and blunt dissections.
Surgical scissors are made so that 3 force vectors can be used in cutting: torque, closing, and cutting. These forces are transferred from the hand to the shanks, and then receive a bearing on the cutting edges. The way the sheets come together is by force closure. Shear is the force that pushes one blade against the other as it closes. Torque is when you use a motion to bring the blade together to touch the other blade. Many designers of surgical scissors create these devices so that when you move your hands in the correct motion, the cut is automatically cut perfectly.
When cutting, for better control and direction, it is important to ensure that the tissue is correctly positioned between the two blades and the security of the operator’s grip of the scissors and the closer the tissue is to the fulcrum, the more in this. The blades tend to push the tissue away, bunching it up prior to the cutting action of the blades. The more obtuse the angle between the blades when cutting. You will receive an inaccurate cut if you try to stabilize the tissue with the scissors.
To get a crisp, clean cut, try using the grip that is designed for all three force vectors. The most common and best way to hold these surgical instruments is to pass the ring finger through the rings and the tips of the thumbs holding the medical instruments and placing the index finger near the fulcrum of the shanks. This grip provides the largest “tripod” type and therefore offers the best stability for directional control. Torque and closing forces; this is the grip that gives you much better control. The thumb and middle finger grip gives your index finger better support on both sides of the shanks. The resulting three-point grip creates a smaller tripod compared to the previous method, by making it a bit more unstable.
Hold the surgical scissors in a cutting motion leaning forward, use your thumb-index grip. Such a grip uses only two-point directional control, this can throw the user off course. Force can be strong when closing, this jaw applies the least torque and shear force of all possible jaws for forward cutting. When you have less torque and shear, the blades tend to create a choppy motion in the cut like it’s been chewed instead of a nice clean cut.
The thumb-index finger grip used for cutting in the reverse direction. Such a grip applies three-point steering control with good lateral stability, but twisting and shearing forces are virtually non-existent, this tactic will require thrust cutting as the primary technique.
The backhand grip is actually a slight variation of the thumb and ring finger grip and is useful for cutting on the way to the right.
All of the grips discussed at this point provide a strong closing force. best grip is thumb-ring finger for better steering, torque and cutting forces. If you cut back, the grip is more stable in directional control. The other two grips, when used in reverse cut, could lose control.
