| 摘要 |
A speculum according to the invention comprises two parts, an outer member (1) and an inner member (2). The outer member (1) comprises a tubular body (3) having an anterior end (4) with an opening (6) and a posterior end (5) with an opening (7). An elongate slot (11) is formed in the side wall (12) of the tubular body (3), extending from the opening (7) at the posterior end (5) towards the anterior end (4). The inner member (2) of the speculum comprises a cup-shaped body (13) having an anterior end (14) formed as a plug (16) and a posterior end (15) with an opening (17). An elongate key member (18) is formed in the side wall (19) of the cup-shaped body (13), extending from the opening (17) at the posterior end (15) towards the anterior end (14). The speculum is assembled by inserting the inner member (2) within the outer member (3) and aligning the key member (18) with the elongate slot (11). When the spectrum has been inserted within a body cavity, the inner member (2) may be removed and the outer member (3) may be rotated to align the elongate slot (11) with a site of interest in the cavity wall, thus allowing a user to examine tissue in the body cavity or to have access to sites of required surgical procedures. |
