Abstract: A surgical instrument assembly for use in snare cauterization operations includes a first tubular sheath member containing a metallic electrical snare cauterization loop. A second tubular sheath member is disposed inside of the first tubular sheath member. A flexible suture member is releasably connected to the cauterization loop, and is provided with a one-way slip knot at its distal end thereby forming a loop of a size corresponding to that of the cauterization loop. The proximal end of the suture member is disposed in the distal end of the second tubular sheath member and is releasably joined to a manually-controlled flexible tensioning device. During use of the instrument, the cauterization loop and connected suture member is expanded from a collapsed configuration and passed over a polyp or other body tissue that is to be removed.

Abstract: A device for insufflating a body cavity preparatory to and during an intracavity procedure is provided that includes a generally cylindrical body anchorable to skin surrounding an incision into the body cavity. An elevation member permits the lifting of the device, along with the attached skin, in a proximal direction, allowing mechanical insufflation. The bore is sealable in order to maintain insufflation during insertion of a surgical implement. The method includes the steps of inserting the device into the incision, anchoring the cylindrical body to the skin, elevating the cylindrical body in a proximal direction, thereby mechanically insufflating the body cavity, and sealing the bore to admit and closely surround the surgical implement for maintaining insufflation. Then a surgical implement can be inserted into the bore of the device and the surgical procedure performed.

Abstract: A locking mechanism for locking a rod to a bone member. The locking mechanism includes a bone fixation member for attachment to the bone member, the bone fixation member having a spherical portion; an inner housing member having a channel for receiving the rod and having a spherical portion for engaging the spherical portion of the bone fixation member; and an outer housing member for locking the inner housing member to the rod and the spherical portion of the bone fixation member.