Orthopraxy : the mechanical treatment of deformities, debilities, and deficiencies of the human frame / by Henry Heather Bigg.

  • Bigg, Henry Heather, 1826-1881.
Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: Orthopraxy : the mechanical treatment of deformities, debilities, and deficiencies of the human frame / by Henry Heather Bigg. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

    101/676 (page 71)
    of distortion, is depicted in Fig. 21. The arrange- ment of the vertebrse- and head-stems is the same as in the instrument previously described. From the extremity of the head-stem spring two curved levers^ which are Fia. 21. attached to the stem by a joint moving on a vertical axis. By means of a screw the distance between the outer ex- tremities of the levers can be increased or diminished. The levers carry two vertical rods, so arranged that the ends, properly padded, rest against the temporal and superior maxillary bones. By this mechanism the head can be more completely controlled, and more power can be exercised over it, than by the instrument first described; whilst, from the facial springs being slightly elastic, less irksomeness is experienced than when an un- yielding force is applied.