Abstract: A continuous flow resectoscope having a working element and a sheath assembly removably connected to the working element. The sheath assembly has an outer sheath removably attached to an inner sheath. The improvement comprises a rotatable connection of the inner sheath to the working element, wherein the working element is rotatable relative to both the inner and outer sheaths.

Abstract: A laparoscope for performing laparoscopic surgery is shown. The laparoscope includes a rigid elongated sheath tube having a selected length, a distal section and a proximal section. The distal section has a distal tip which includes a fluid tight transparent member, such as a distal lens, which is capable of passing an optical image. The transparent member has an exterior surface located at the distal tip. The laparoscope includes a fluid flow channel which terminates in a nozzle located at the distal tip for directing a fluid flow across the exterior surface of the transparent member to remove image impeding material therefrom such as per example organic material. The laparoscope further includes a first channel which terminates in an orifice which is capable of directing a flow of irrigation fluid along a selected path which, in the preferred embodiment, is a path substantially in alignment with the direction of view of the laparoscope.

Abstract: A sheath is provided having a tube and a latch receptacle for removably connecting the sheath with a cooperating working element. The latch receptacle is static and has means for receiving at least a portion of a movable latch of the working element such that the latch receptacle can be disconnected from the working element without touching the sheath. A continuous flow resectoscope sheath assembly may also be provided with both an inlet post and an outlet post on the outer sheath portion.