A telemeter with micrometer screw adjustment

Screw Adjustment for Fixed Traction with Thomas Splint

a Thomas splint. As the Thomas splint acts as an exoskeleton the traction from the leg must, therefore, be fastened to the splint. The right degree of tension imust be used to prevent overlapping of the ends and shortening of the limb, yet not produce distraction with the risk of either slow or non-union. The conventional method of tying the tapes T0P from the skin tractioni to the end of the s...

Pneumatic Micrometer with a Feedback Circuit

This paper is concerned with transfer characteristics of a pneumatic micrometer system with a negative feedback transducer. The system has two negative feedback pathes. One of them is based on the transfer characteristics of the feedback transducer which is introduced to linealize the transfer characteristic of the system and the other is caused by repulsive pressure force between nozzle and it...

Development of Mathematical Model for Controlling the Drilling Parameters with a Screw Downhole Motor

Article presents results of study on possibility of increasing the efficiency of drilling directional straight sections of wells using screw downhole motors (SDM) with a combined method of drilling with rotation of drilling string (DS). Goal is to ensure steady-state operation of SDM with simultaneous rotation of DS by reducing the amplitude of oscillations with adjusting the parameters of dril...

Continuous Granulation with a Twin-Screw Extruder

Biceps tenodesis with interference screw fixation: a biomechanical comparison of screw length and diameter.

PURPOSE To evaluate the effect of screw length and diameter on the mechanical properties of biceps tenodesis (BT) with an interference screw in 2 different locations (proximal and distal). METHODS We randomized 42 fresh-frozen human cadaveric shoulders (mean age, 65 ± 8 years) into 6 groups (n = 7): arthroscopic proximal BT using 7 × 15-, 7 × 25-, 8 × 15-, or 8 × 25-mm interference screws or ...