Patent ID: 7311663

Claim:
A speculum to provide visual access to a body cavity, said speculum comprising a handle having a frontal portion and a rear portion slidingly secured to said frontal portion, a blade angle positioner pivotally connected by a pivot connection in a top end portion of said handle rear portion whereby to angulate a top blade removably secured to a top blade connector anchor at a forward projecting end of said blade angle positioner, said handle frontal portion having a bottom blade connector anchor in a top forward end portion thereof, said top and bottom blades each having a connecting end provided with clamp connectors for removable engagement with a respective one of said top and bottom blade connector anchors, said blade angle positioner arresting said handle rear portion at a desired selected position by transferring a biasing force applied onto said blades when inserted into a body cavity and said blade connected to said blade angle positioner is placed in normal tension with cavity walls said handle rear portion being retained in sliding fit in a guide slot formed in each of a pair of straight vertical side edges of said handle frontal portion, said guide slots each having a serrated section facing forwardly, said handle rear portion having a pair of transversely aligned serration-engaging teeth facing rearwardly and adapted to engage with a respective one of each serrated sections at a desired position therealong when said biasing force is applied onto said blade and wherein said blade angle positioner is provided with an integrally formed angle-selecting flexible ramp integrally molded therewith, said ramp having a series of teeth displaceable against a teeth-engaging edge of said handle rear portion when said angle positioner is displaced on said pivot connection.