Instrument for endoscopic operations

Claim 1

An instrument for endoscopic treatment of internal body organs including the gall bladder comprising a tubular trocar sleeve having an inner diameter, a proximal end and an axial length terminating in a distal end, said trocar sleeve having at least one instrument channel extending axially of the sleeve, said instrument channel having a diameter smaller than the inner diameter of the sleeve, a flexible forceps device having proximal and distal ends separated by a flexible intermediate portion dimensioned to be received through said instrument channel and having a length greater than the instrument channel, said flexible forceps device having a pair of grasping forceps jaws at a distal end thereof and a means for activating the grasping forceps jaws at a proximal end thereof, said sleeve having clamping means carried thereby for fixing the position of the flexible forceps with respect to the instrument channel whereby the flexible forceps are locked in position with respect to the sleeve, said sleeve having an operating length dimensioned to substantially bridge the distance between the abdominal wall and the organ to be treated of a patient after insufflation with the proximal end of the sleeve exterior of the abdominal wall, a trocar sleeve insert having a portion extending from a distal end which has a minimum outer dimension sized to be received axially within the sleeve inner diameter whereby the insert can be pushed into the sleeve proximal end and project out of the distal end of the sleeve, said insert having a working channel therethrough, and said portion having an axial length dimensioned to bridge the distance between the abdominal wall and the organ after insufflation whereby the insert distal end can be inserted into the organ with the distal end of the insert projecting beyond the distal end of the sleeve, said insert portion having an axial length greater than the axial length of the sleeve, said insert having sealing means adjacent its proximal end, said sealing means including a first sealing member adapted to engage against an inside wall of the organ and a second sealing member axially spaced of the first sealing member proximally thereof adapted to sealingly engage and outside of the gall bladder wall.