Improvements in electric surgical dilators / [Charles Leonard Mosher].

  • Mosher, Charles Leonard.
Date:
1901
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in electric surgical dilators / [Charles Leonard Mosher]. Source: Wellcome Collection.

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    N°5220 A.B. 1901 (Under International Convention.) Date claimed for Patent under Sect. 103 of Act, i being date of first Foreign Application 125th Aug,, 1900 (in United States), J Date of Application (in United Kingdom), 12th Mar,, 1901 Complete Specification Left, 12th Mar., 1901—Accepted, 25th May, 1901 COMPLETE SPECIFICATION. Improvements in Electric Surgical Dilators. 1, Charles Leonard Mosher, of Chatham, in the County of Columbia, and State of New York, United States of America, Physician, do hereby declare the nature of this invention and in what manner the same is to be performed to be particularly described and ascertained in and by the following statement: C) This invention has for its object to provide means for the application of elec¬ tric currents to the canals or discharge-passages of the body in such manner that the current will pass through and act upon only such parts as require electric treatment. To this end the invention contemplates providing expanding surgical instru- 10 ments, such as are known as “dilators”—as, for instance, rectal dilators—with bipolar insulated plates or poles adapted to be placed in connection with the ter¬ minals of a battery or other source of electrical supply, so that the completion of the circuit is had through the portion or portions of the wall of the canal from the one pole or set of poles to the other pole or set of other poles which are 15 carried by the blades or valves of the dilator, thus obtaining the full benefit of the electric current at the parts under treatment, which parts may be distended as desired during such electrical treatment by the expansion of the dilator. The plates or poles applied to the blades or valves of the dilators according to my invention will be preferably located near their ends or so far from the bases 20 of the blades or valves as not to contact with the sphincter muscles. The blades or valves may be made solely of insulating material, with the contact plates or poles embedded therein, or they may be made of metal, the contact plates or poles being suitably insulated and connected thereto, or the blades or valves may be made of metal having insulated pivotal connections and having their base 25 portions or such parts as may lie within the sphincter-muscles properly protected by a suitable insulation. In a dilator having two blades or valves each blade will constitute or be provided with a pole forming the terminal of a battery. In dilators having three or more blades two blades only may constitute or be pro¬ vided with a pole, or the two terminals of the battery may be placed in multiple SO connection with two or more blades. To describe my invention more particularly, I will now refer to the accom¬ panying drawings, in which— Figure 1 represents in side elevation a two-bladed or bivalve rectal dilator provided with my electrical bipolar improvement. [Price 8r7.]