Adjustable endoscope sheath

摘要

An endoscope sheath is provided comprising a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube is configured to receive at least a portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, wherein the sheath tube can rotate about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter.

主权项

1. An endoscope sheath comprising:
a sheath tube extending along a longitudinal axis between a proximal end and a distal end, the sheath tube defining a passageway that is configured to receive a tubular portion of an endoscope; a hub connected to the proximal end of the sheath tube; and a hub adapter engaging the hub and configured to engage the endoscope, the hub adapter having only a single port, the single port is in communication with both an irrigation source and a suction source, the single port is adapted to provide irrigation fluid from the irrigation source and suction from the suction source to the same passageway that is configured to receive the tubular portion of the endoscope; wherein the hub is separable from the hub adapter so that the hub and the sheath tube are separable from the hub adapter and the endoscope, wherein the sheath tube is rotatable about the longitudinal axis without rotation of the hub adapter, and wherein the sheath tube is restricted from moving axially along the longitudinal axis relative to the hub adapter; wherein one of the hub adapter and the hub includes a flange and the other of the hub adapter and the hub includes a channel; wherein the flange rotationally engages the channel so that the sheath tube is rotatable about the longitudinal axis; wherein after the flange engages the channel, a proximal side and a distal side of the flange is constrained within the channel so that the sheath tube is restricted from moving axially along the longitudinal axis; wherein the flange includes a plurality of radial projections and the channel includes a plurality of mating radial notches, and after the radial projection are received into the radial notches the flange is rotatable within the channel; and wherein after the flange is engaged in the channel, aligning the radial projections with the mating radial notches enables the sheath tube and the hub to be separable from the hub adapter and the endoscope.