Biomedical subjects

W Vuisting

Publications and source records attributed to W Vuisting.

3 recordsLinked to original sources

PubMed1978

Pneumatic muffler noise.

Sixty-five commercial pneumatic mufflers in the size range of 1/8 to 3/8-inch American Standard Taper Pipe Thread (NPT) were evaluated for noise level as a function of air supply pressure and back pressure. Also, typical directivity pattern and spectral content were determined. A rating system has been devised, as well as individual prediction formulas, to rank order the mufflers and provide a capability of calculating expected noise levels for a given supply pressure. As this study reveals, noise reductions in excess of 40 dBA may be achieved by employing an efficient pneumatic muffler.

Air Pressure↗

PubMed1978

A reduction apparatus for femur fractures.

The majority of femur fractures are closed fractures in the mid-third of the femoral shaft. A very well known fixation technique is the one using an intramedullary pin, which is inserted from the hip side. Open reduction of the fracture is mostly applied but the majority, between 85 and 93%, of the fractures are closed and therfore a more logical and safer technique would be closed reduction. However, this technique, also called blind-nailing, is more difficult. Besides an x-ray scanner with a monitor it also requires experience of the surgeon and some special tools to supply the necessary reduction forces to the proximal and distal parts of the femur. This publication describes a new designed reduction apparatus (1), that primarily simplifies blind-reduction of femur fractures, but can also be used for any other operation technique where a good grip on bones has to be provided with a minimum of tissue damage. The apparatus is designed to be used with standard Kirschner-wires and is easy to apply in combination with the existing operation techniques, and does not require special skill.

Femoral Fractures↗

PubMed1977

Noise generation in pneumatic blow-off guns.

An efficiency rating system is presented to aid in the selection of hand held air guns, nozzles, and ejectors. This guide is based on noise levels, force or thrust, and air supply pressure. In addition, air consumption, blocked static air pressure, noise directivity patterns and spectra are presented. Finally, noise control techniques in the use and installation of nozzles and ejectors are reviewed.

Equipment and Supplies↗