Synopses & Reviews
Synopsis
Excerpt from The Sphygmograph and the Physiology of the Circulation: A Monograph Read Before the Medical Society of New Jersey, Upon Investigations Made Preparatory to a Larger Work on the Practical Value of the Sphygmograph
The pen may be fed with ink, by the ordinary writing pen or pencil brush.
The time required to take a tracing with this instrument, is from one to three minutes and as no fastening is required, the observations made have not been marred by the fears of the patient, or the difficulties usually experienced In maintaining perfect quiet.
The artificial heart referred to, was made as near as possible of the natural capacity, and the capillary circulation designed to bear a similar correspondence between its parts, as exists in the arterial and venous systems of the human subject; its difference from the heart in propulsive and contractile power being compensated by the avoidance of a too great ex tension or reduction in size of the smaller capillaries.
Farther reasons for believing this artificial heart to be a fair representation of the natural organ, will be hereinafter stated.
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