Patent ID: 7758497

Claim:
A sheath device suitable for medical usage in endoscopic instruments, the device comprising: a) an elongated tubular member comprising: a proximal end, a distal open end, and a sidewall extending between the proximal end and the distal open end, and at least one fluid channel extending longitudinally from said proximal end to a fluid exit; and b) a flushing unit connected to said proximal end of the tubular member and comprising: a proximal open end suitable for receiving a first endoscopic instrument, a fluid inlet being in contact with said fluid channel, and a fluid outlet, wherein the tubular member and the flushing unit together define a first interior guiding passage extending longitudinally from the proximal open end of the flushing unit to the distal open end of the tubular member for sheathing at least a part of said first endoscopic instrument, wherein the tubular member further comprises a second guiding passage extending substantially longitudinally from a location near the proximal end or from the proximal end to the distal end of the tubular member, the second passage being suitable for receiving and guiding an injection needle, wherein the second guiding passage comprises an inlet in its end closest to said proximal end of the tubular member, the inlet being arranged in through an outer surface of the sidewall of the tubular member, such that an injection needle may be introduced through said second guiding passage, and wherein the connection between the tubular member and the flushing unit allows for axial rotation of the tubular member in relation to the flushing unit.