Other

The United States of America As Represented by the Department of Health

Baxter Travenol Laboratories, Inc.

Paul H Sugarbaker

John C Hancock

James E Lyddy

William Z Penland

An abdomino-pelvic perfusion and lavage apparatus is disclosed to which skin surrounding an incision formed through an abdominal wall of a patient can be attached and suspended. The apparatus includes a containment vessel impermeable to water and air, having a wall having a base, wherein the wall has an upper end with a perimeter which defines an upper opening, a lower end with a perimeter which defines a base opening, a cranial end with a perimeter edge which defines an opening, and a caudal end with a perimeter edge which defines an opening. The containment vessel can be carried by a table on which a patient is positioned. Scaffolding carried by the containment vessel supports and elevates the skin surrounding the incision made through the abdominal wall of the patient and thereby forms a well above, and extending into, an abdomino-pelvic cavity. A plurality of fluid ports communicate through the wall of the containment vessel. The cranial opening and the caudal opening can be sealed around the patient's torso. A base seal can seal the base of the containment vessel to the table. Perfusion fluid can be supplied from a reservoir to one of the fluid ports communicating through the wall of the containment vessel and delivered to the well and can be withdrawn from the well and returned to the reservoir. A removable cover can be sealed over the upper opening of the containment vessel. The cover can be removed for visual inspection and manual manipulation of the lavage fluid and the patient's viscera. An air evacuation system can be connected to the fluid port and can evacuate aerosols and gasses from within the containment vessel. A heater can be used to heat the perfusion fluid when carrying out hyperthermic perfusion. The apparatus can be left in place on a patient for up to 5-10 days particularly when using cell-cycle specific chemotherapy agents which require long-term contact with tissues in order to achieve their optimal effect. Similarly, the apparatus can be used for repeated access to the abdomino-pelvic space in patients with peritonitis or pancreatitis.

Apparatus and method for abdomino-pelvic chemotherapy perfusion and lavage

An abdomino-pelvic lavage apparatus adapted to be secured in a midline abdominal incision to form a well with the abdomino-pelvic cavity for lavaging the abdomino-pelvic cavity during surgery. The apparatus includes a cylindrical wall made of a transparent plastic material and having structure at its base end for securing the wall in place and effecting a water-tight seal with the edge of an abdominal incision. Ports through the wall around its circumference provide openings for the surgeon's hands so that the surgeon has free access to the abdomino-pelvic cavity for manipulation of intra-abdominal tissues, lavage fluid and inflow and outflow tubes for the lavage fluid. A transparent removable cover may be placed on the wall during chemotherapy treatment to contain fumes and prevent spillage, and to permit pressurization of the well and abdomino-pelvic cavity. Inflow tubes extend through the wall to admit lavage fluid and pressurized gas into the abdomino-pelvic cavity, and outflow tubes drain the lavage fluid from the cavity. Heat sensors, pH monitors, and a pressure gauge on the apparatus, and associated Geiger counters permit accurate monitoring and control of these parameters in the abdomino-pelvic cavity during the procedure. Fluid from drain sites may be sampled for desired data during the lavage procedure.

Abdomino-pelvic lavage apparatus and method

An improved device of a combination of elements is adapted to be used with an elongated flexible instrument, such as an endoscope, and capable of at least partially extending with the instrument into the lumen of a tubular body part, such as the large intestines. A sheath is adapted to be mounted on the instrument. The instrument and sheath are provided with selectively inflatable cuffs movable with respect to one another by axially sliding the sheath on the instrument. The movable relationship of the sheath and instrument and the selective control of air to the cuffs allows the user to more easily navigate the front of the instrument through the lumen of the body part with less discomfort to the patient.

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Bethesda, MD, United States of America

Paul H Sugarbaker