Patent ID: 9179898
Filing Date: 2015-11-10
Classification: A61B

Abstract:
1. An improved tissue sealant applicator having a barrel assembly containing a multi-component tissue sealant, 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 spray adapter member, the 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 a venting valve assembly having a biased movable valve rod slidably located within the venting valve assembly, and configured to provide a seal within a vent path associated with the venting valve assembly and in fluid communication with a vent opening disposed at a terminus of the vent path opposite the trocar assembly, the vent opening configured for allowing gas to pass from the vent path to atmosphere by selectively opening the vent path under the action of the valve rod by gas pressure; wherein a vent path connector associated with the trocar assembly defines a first gas passageway to the venting valve assembly, and a valve conduit in fluid communication with a gas supply tube defines a separate second gas passageway from the venting valve assembly, such that the gas from the trocar assembly passes from the vent path to atmosphere by selective gas pressure actuation of the valve rod.