Tissue sealing system and apparatus

An improved tissue sealant applicator having a barrel assembly containing a multi-component tissue sealant including a distinct chamber for each of the components, a piston movably positioned in a proximal end of the barrel assembly, and an elongate delivery tube, in combination with a trocar assembly having a trocar tube for introducing the elongate delivery tube into a bodily cavity, the improvement comprising:

• a spray adapter member having
• a gas inlet connection;
• a distinct chamber for each component of the multi-component tissue sealant;
• a tissue sealant inlet in fluid communication with both the gas inlet connection and a distal end of the barrel assembly;
• and
• a connector outlet in fluid communication with both the gas inlet connection and the tissue sealant inlet;
• the elongate delivery tube having a proximal end connected to the connector outlet of the adapter member, a distinct chamber for each component of the multi-component tissue sealant and a spray outlet at an opposite distal end, the elongate delivery tube received in the trocar tube of the trocar assembly, with the spray outlet at the distal end of the elongate delivery tube exposed and the elongate delivery tube being rotatable relative to the trocar tube;
• and
• wherein the spray outlet at the distal end of the elongate delivery tube is angled relative to a main axis of the elongate delivery tube.

An improved tissue sealant spray applicator for applying a multiple component fluid into a bodily cavity through a trocar assembly extending into the body cavity, the multiple component fluid being contained within a multiple component assembly having a barrel assembly containing the multi-component fluid, the barrel assembly including a distinct chamber for each of the components, a piston movably positioned in a proximal end of the barrel assembly, the trocar assembly having a trocar tube for introducing the elongate delivery tube into a bodily cavity, a vent outlet and forming a vent passageway for placing the vent outlet in fluid communication with the bodily cavity, the improvement comprising:

• a spray adapter member having
• a gas inlet connection;
• a plurality of fluid inlets, with at least one of the fluid inlets in corresponding fluid communication with one of the chambers;
• and
• an adapter member outlet in fluid communication with the gas inlet connection and the plurality of fluid inlets;
• an elongate delivery tube having a proximal end connected to the adapter member outlet of the adapter member, an opposite distal end region forming a spray outlet in fluid communication with the gas inlet and the plurality of tissue sealing inlets, the elongate delivery tube received in the trocar tube of the trocar assembly, and sized to extend through the trocar tube with the distal end region of the elongate delivery tube exposed and the elongate delivery tube being rotatable relative to the trocar tube;
• a main gas tube in fluid communication with the gas inlet;
• a gas supply tube in fluid communication with the main gas tube;
• a venting valve assembly including a gas connecting end attached to the gas supply tube, a valve conduit in fluid communication with the gas connecting end, a vent path connector end configured to attach to the vent outlet of the trocar assembly and a vent path in fluid communication with the vent path connector end, the venting valve assembly also including a biased movable valve rod slidably located within the valve conduit and configured to provide a seal within the vent path, the valve rod being operable by gas pressure within the valve conduit to slide against the bias and provide a selective opening for gas to pass from the vent path to the atmosphere;
• and
• a vent opening, wherein the vent opening is in fluid communication with the vent path upon said selective opening of the valve rod.

A venting valve member for use with a trocar assembly having a trocar tube and a trocar body having a valve opening permitting gas to be vented from the trocar tube to an exterior of the trocar assembly, the venting valve member comprising:

• a gas connecting end;
• a valve biased by a spring in a direction toward the gas connecting end;
• and
• a vent path in fluid communication with the valve opening of the trocar assembly, the vent path selectively opened by gas pressure urging the valve against the spring.