Pneumatic Maltings

Pneumatic dilatation in achalasia.

To assess the value of pneumatic dilatation of the cardia, 63 patients with achalasia have undergone a total of 107 Rider-Moeller dilatations over the last six years. There was a marked improvement in swallowing immediately after dilatation in all but two patients, there were no deaths attributable to the procedure and serious complications were rare (1.6% of patients). The first 50 cases have ...

Pneumatic Conveying Design Guide

Pneumatic Artificial Muscles

This paper reports mechanical tasting and modeling results for the McKibben artificial muscle pneumatic actuator. This device, first developed in the 1950’s, contains an expanding tube surrounded by braided cords. We report static and dynamic length-tension testing results and derive a linearized model of these properties for three different models. The results are brieffy compared with human m...

Assessing Pneumatic Tube

The October 2011 issue of Clinical Chemistry highlights the importance of monitoring pneumatic tube systems (PTSs) to control preanalytical factors that may affect laboratory results (1, 2 ). Two important themes emerge: (a) the possible requirement of morefrequent monitoring if the PTS produces changes in the 3-axis acceleration (i.e., forces) and (b) consideration for specific populations of ...

Pneumatic Musculoskeletal Infant Robots

The basis of human motor skills and cognitive abilities is acquired during its infancy. The mechanism of the development, however, is as yet a big mystery. Our goal is to clarify the role of embodiment, especially of the musculoskeletal system, in the early stage of the development through robot experiments in the real world. In this paper, we describe the design concept of infant-sized musculo...