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PubMed · 994575

A versatile and reproducibly operating microelectrode puller.

J Siegenbeek van Heukelom·K Dijkstra·H van Ingen
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Electronics, MedicalMagneticsMicroelectrodesJournal Article

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J Siegenbeek van Heukelom, K Dijkstra, H van Ingen. 1976. A versatile and reproducibly operating microelectrode puller.. https://doi.org/10.1007/bf02477042

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PubMed1999

Proposal of a new electromechanical total artificial heart: the TAH Serpentina.

A new type of energy converter for an electro-mechanical total artificial heart (TAH) based on the principle of a unidirectional moving motor is described. Named the TAH Serpentina, the concept consists of 2 major parts, a pendulum shaped movable element fixed on one side using a joint bearing and a special shaped drum cam. Pusher plates are mounted flexibly to the crossbar of the pendulum. A motor drives the special shaped drum cam linked to the pendulum through a ball bearing. The circular motion of the unidirectional moving brushless DC motor is transferred into the linear motion of the pendulum to drive the pusher plates. Using a crossbar with a variable length, the stroke of the pendulum and therefore the displaced blood volume is alterable. To achieve a variable length, an electric driven screw thread or a hydraulic system is possible. Comparable to the natural heart, cardiac output would be determined by frequency and stroke volume.

Electronics, Medical↗