A NEW SAW ESPECIALLY ADAPTED TO CRANIAL SURGERY

H. C. MASLAND
1905 Journal of the American Medical Association (JAMA)  
the speculum gently pushed into position. The lateral blades ( Fig. 2 ) are next introduced in like manner ( Fig. 3 ) . In removing the instrument, the lateral blades.are removed first by withdraAving them one-half or two-thirds and then com¬ pressing the distal ends as Avhen introducing. The anteroposterior blades are sufficiently withdraAvn, but the distal ends can be compressed in like manner. In office examinations, in many instances, there is difficulty in securing satisfactory exposure of
more » ... factory exposure of the cervix Avithout the aid of an assistant. The lateral blades or retractors used in con¬ junction with any suitable bivalve speculum, as in Figure 5 , constitutes a thoroughly efficient quadvalve speculum insur¬ ing complete exposure of the cervix, particularly in cases of laceration or of enlargement of the cervix or of undue relaxa¬ tion of the vaginal Avails (Fig. 6 ).
doi:10.1001/jama.1905.92500360038004a fatcat:nk5r3iyl6vdwpbepjhote5b3l4