Hints for the improvement of trusses : intended to render their use less inconvenient, and to prevent the necessity of an understrap : with the description of a truss of easy construction and slight expense, for the use of the labouring poor, to whom this little tract is chiefly addressed / by James Parkinson.

Date:
1802
Catalogue details

Licence: Public Domain Mark

Credit: Hints for the improvement of trusses : intended to render their use less inconvenient, and to prevent the necessity of an understrap : with the description of a truss of easy construction and slight expense, for the use of the labouring poor, to whom this little tract is chiefly addressed / by James Parkinson. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    Those who are under the necessity of wear- ing Trusses, and are partial to that kind to which they have been long accustomed, will, I am confident, derive considerable advantage from a very slight alteration, consisting merely in a change in the position of the strap. . The situation in which this is commonly disposed, and the inconvenience thence arising, has been already shewn in fig. 5, where the strap is se- cured by being hooked on a button at e. The alteration recommended is, that of merely re- moving the button to that part of the spring at where it begins to form the curvature necessary to bring the pad at its extremity almost to the groin. The strap being affixed to the button at this part, it is evident that instead of shifting the pad from its proper situation, it must, from its action being now in the direction of the line gj secure it in its situation. By acting in this di- rection, the following Very important advantage is also obtained; the part immediately above the hip bone at /, becomes the fixed point, from which that part of the spring between e and where the pad is placed, has free power of act- ing; whereas if the strap is made to fasten im- mediately on the.pad at the end of the spring, it not only drags it from its required position, but restrains the necessary action of the spring; the ac- tion of which fromwhere it forms its bend to its termination