Anal Speculum.
Description:
Patent for a new and improved anal speculum. This design is "to so construct the several parts that there will be no rough or raised edges to interfere with its insertion in the anal passage; secondly, to so construct [the] improved speculum that it may be readily used as a bi-valve or dilator; thirdly, to form a locking-joint on the meeting edges of the shells forming the speculum, whereby the sections are prevented from overlapping each other to avoid pinching or injury to the walls of the an…
more
Date:
March 25, 1890
Creator:
Shuford, Quincy Adams
Item Type:
Refine your search to only
Patent
Partner:
UNT Libraries Government Documents Department