# US 2010/0168779 A1 · Tissue sealing system and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0168779 A1 - Document ID: US20100168779A1 - Status: Published application - Kind: A1 - Application number: 12/650,185 - Filed: 2009-12-30 - Published: 2010-07-01 - Earliest claimed: 2008-12-30 - Assignees: Baxter International Inc.; Baxter Healthcare S.A. - Inventors: Heinz Redl; Zafar Khakpour; Rene Fortelny - Web page: https://patentgrep.com/patent/US20100168779A1 ## CPC - A61B 17/00491: {Surgical glue applicators} - A61B 17/3474: {Insufflating needles, e.g. Veress needles} - A61B 2017/00495: {for two-component glue} - A61B 2017/00522: {Sprayers} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A laparoscopic tissue sealant spray apparatus and system having a laparoscopic tissue sealant spray assembly combined with a trocar assembly, the tissue sealant spray assembly having an elongate delivery tube. A spray outlet at a distal end of the elongate delivery tube may be rounded or angled. A ring member provided at the distal end of the elongate delivery tube directs a spray cone toward a portion of a target tissue site, and the spray cone may be repositioned to a different portion of the target tissue site by rotation of the elongate delivery tube. The trocar assembly includes a vent opening that connects to a venting valve member that provides a vent path which passively opens upon operation of the tissue sealant spray assembly, avoiding excessive pressure build-up within a body cavity. ## Claims ### Claim 1 An improved tissue sealant applicator having a barrel assembly containing a 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 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 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. ### Claim 2 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. ### Claim 3 (depends on 2) The improved tissue sealant applicator and trocar combination of claim 2, wherein the elongate delivery tube includes a gas passageway in fluid communication with the connector outlet of the spray adapter member. ### Claim 4 (depends on 3) The improved tissue sealant applicator and trocar combination of claim 3, wherein the gas passageway of the elongate delivery tube surrounds the separate passageways for the components of the tissue sealant. ### Claim 5 (depends on 4) The improved tissue sealant applicator and trocar combination of claim 4, wherein the gas passageway and the separate passageways for the components of the tissue sealant terminate at a distal end of the elongate delivery tube at a ring member having a plurality of teeth projecting radially inwardly from an inner diameter of the ring, the teeth extending across an outlet end of the gas passageway and around an outer wall of the separate passageways, whereby the outer wall of the separate passageways, the teeth, and the inner diameter of the ring member define a plurality of apertures in the distal end of the elongate delivery tube. ### Claim 6 (depends on 5) The improved tissue sealant applicator and trocar combination of claim 5, wherein the distal end of the elongate delivery tube is rounded, and the ring member is off-center on the rounded distal end. ### Claim 7 (depends on 1) The improved tissue sealant applicator and trocar combination of claim 1, wherein the trocar assembly is provided with a valve opening permitting gas to be vented from the trocar tube to an exterior of the trocar assembly, and further comprising a venting valve member secured to the valve opening, the venting valve member including: a gas connecting end; a valve rod 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 rod against the spring. ### Claim 8 (depends on 7) The improved tissue sealant applicator and trocar combination of claim 7, wherein the venting valve member is provided with a threaded locking member selectively securable to an exterior of the valve opening of the trocar assembly. ### Claim 9 (depends on 7) The improved tissue sealant applicator and trocar combination of claim 7, further comprising a branched gas supply tube having a first end connected to a source of gas, a second end in fluid communication with the gas inlet connection of the spray adapter member, and a third end in fluid communication with the gas connecting end of the venting valve member. ### Claim 10 (depends on 1) The improved tissue sealant applicator and trocar combination of claim 1, wherein a spray outlet at the distal end of the elongate delivery tube is angled relative to a main axis of the elongate delivery tube and the angle is in a range of 30°-45°. ### Claim 11 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. ### Claim 12 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. ### Claim 13 (depends on 12) The venting valve member of claim 12, further comprising a locking member selectively securable to an exterior of the valve opening of the trocar assembly. ### Claim 14 (depends on 12) The venting valve member of claim 12, in combination with a gas supply tube having a first end in fluid communication with the gas connecting end of the venting valve member and a second end in fluid communication with a gas source.