2533 results about "Abdominal cavity" patented technology

A surgical access device includes a single valve that forms a seal with the body wall and provides an access channel into a body cavity. The valve has properties for creating a zero seal in the absence of an instrument as well as an instrument seal with instruments having a full range of instrument diameter. The valve can include a gel and preferably an ultragel comprised of an elastomer and an oil providing elongation greater than 1000 percent and durometer less than 5 Shore A. The single valve can be used as a hand port where the instrument comprises the arm of a surgeon, thereby providing hand access into the cavity. A method for making the surgical access device includes the combining of a gelling agent with an oil, preferably in a molding process. A method for using the device includes steps for creating an opening with the instrument. In a particular process, an organ can be removed from the body cavity through the single valve to create an organ seal while the organ is addressed externally of the body cavity. The valve and method are particularly adapted for laparoscopic surgery wherein the abdominal cavity is insufflated with a gas thereby requiring the zero seal, the instrument seal, and the organ seal in various procedures.

A laparoscopic port assembly includes a cannula unit including three cannulas each extending at an acute angle relative to a base. The cannulas are flexible for receiving respective angulated laparoscopic instruments. The cannula unit is rotatingly received in a port holder for rotation about a longitudinal axis of the holder, the holder being disposable in an opening in a patient's skin.

A laparoscopic surgical extraction port (LSEP) includes a port having a radially-enlarged distal end. A sheath having a plurality of circumferentially-spaced prongs is slidingly mounted onto the port. With the prongs contracted radially-inwardly and the LSEP in its contracted position, a surgeon inserts the LSEP into a patient's abdominal cavity through an incision. The surgeon then expands the LSEP by pulling the port rearwardly such that the radially-enlarged distal end expands the prongs radially-outwardly. The surgeon then positions a specimen and endo-bag in the funnel formed by the expanded prongs. The specimen, endo-bag, and prongs are thereafter simultaneously extracted through the incision. A radially-inward force that is applied to the prongs by the incision substantially prevents the specimen from bunching or rupturing during the extraction process.

A trocar assembly for creating a pneumatic seal during a minimally-invasive surgical procedure. The trocar assembly including an elongated body having a lumen extending therethrough. The proximal end portion of the body defining a housing. A fluid supply plenum is defined in the housing configured to deliver pressurized insufflation fluid to a nozzle. The nozzle configured for directing pressurized fluid into the lumen and creating a pneumatic seal. A fluid return plenum is defined in the housing configured to collect spent insufflation fluid from as patient's abdominal cavity. The fluid return plenum including a plurality of axially and radially oriented elongate vanes configured to permit spent insufflation fluid to proceed between the vanes and direct spent insufflation fluid back to the fluid return plenum.

A novel approach to diagnostic and therapeutic interventions in the peritoneal cavity is described. More specifically, a technique for accessing the peritoneal cavity via the wall of the digestive tract is provided so that examination of and / or a surgical procedure in the peritoneal cavity can be conducted via the wall of the digestive tract with the use of a flexible endoscope. As presently proposed, the technique is particularly adapted to transgastric peritoneoscopy. However, access in addition or in the alternative through the intestinal wall is contemplated and described as well. Transgastric and / or transintestinal peritoneoscopy will have an excellent cosmetic result as there are no incisions in the abdominal wall and no potential for visible post-surgical scars or hernias.