Abstract: Sealant delivery systems, sealant applicators, and injection needle assemblies are disclosed. A sealant delivery system includes a sealant applicator that has two chambers separate from one another. Each chamber includes an output port on a distal end thereof. The sealant applicator also has a quarter turn connector disposed on a distal end of the sealant applicator adjacent to the output port of each chamber. The quarter turn connector is shaped to releasably interlock with a corresponding quarter turn connector of an injection needle assembly having input ports or a corresponding quarter turn connector of a dual chamber mixing syringe having mixing ports. When the injection needle assembly or the dual chamber mixing syringe is coupled to the sealant applicator via the quarter turn connector, the input ports or the mixing ports are aligned and sealed with the output port of each chamber of the sealant applicator.

Abstract: A sealant injection needle assembly includes a cannula assembly and a stylet assembly. The cannula assembly has a cannula hub and a cannula having a first longitudinal sealant passage and a second longitudinal sealant passage. The first longitudinal sealant passage has a first proximal sealant port and a first distal sealant port. The second longitudinal sealant passage has a second proximal sealant port and a second distal sealant port. The stylet assembly has a stylet advance hub and a stylet configured for longitudinal movement in a lumen of the cannula. The stylet has a first stage position and a second stage position. The stylet has a first exterior circumvolving channel longitudinally spaced apart from the second exterior circumvolving channel that are separately selectively and sequentially positionable in fluid communication with both of the first distal sealant port and the second distal sealant port of the cannula.

Abstract: A bipolar electrosurgical pleura sealing device includes an electrosurgical probe assembly having a coaxial arrangement that includes an inner stylet, a first intermediate cannula, a second intermediate cannula, and an outer cannula, having appropriate insulation. A first mesh electrode connects to and extends between a distal end portion of the inner stylet and a distal end of the first intermediate cannula, and is movable between a first extended position and a first retracted position by an axial movement of the inner stylet and/or the first intermediate cannula. A second mesh electrode connects to and extends between a distal end of the second intermediate cannula and a distal end of the outer cannula, and is movable between a second extended position and a second retracted position by an axial movement of the second intermediate cannula and/or the outer cannula.

Abstract: A sealant delivery apparatus for use in a lung access procedure to aid in preventing pneumothorax includes a sealant applicator device and an injection needle assembly. The injection needle assembly has a hub and an elongate hollow stylet. The hub is configured for removable connection to the sealant applicator device. The elongate hollow stylet is configured to facilitate fluid communication with at least one output port of the sealant applicator device to receive a multi-component sealant. The elongate hollow stylet has a proximal portion, a distal portion having a closed distal end, and a plurality of side ports proximal to the closed distal end. The plurality of side ports radially extend from a lumen and through a side wall of the elongate hollow stylet in the distal portion. The plurality of side ports are in fluid communication with the at least one output port of the sealant applicator device.

Abstract: A bipolar electrosurgical pleura sealing device includes an electrosurgical probe assembly having a coaxial arrangement that includes an inner stylet, a first intermediate cannula, a second intermediate cannula, and an outer cannula, having appropriate insulation. A first mesh electrode connects to and extends between a distal end portion of the inner stylet and a distal end of the first intermediate cannula, and is movable between a first extended position and a first retracted position by an axial movement of the inner stylet and/or the first intermediate cannula. A second mesh electrode connects to and extends between a distal end of the second intermediate cannula and a distal end of the outer cannula, and is movable between a second extended position and a second retracted position by an axial movement of the second intermediate cannula and/or the outer cannula.

Abstract: An impedance measuring probe for use in a biopsy apparatus includes a metal elongate member having an elongate surface, a proximal end portion, and a distal end portion. The elongate surface has a recessed longitudinal channel having a depth that longitudinally extends from the proximal end portion into the distal end portion. A conductive wire electrode, having a connection end and a sensing end, is located in and extends along the recessed longitudinal channel. The connection end extends from the proximal end portion of the elongate member and the sensing end is located at the distal end portion of the elongate member. An insulation material is disposed in the recessed longitudinal channel of the elongate member and around the conductive wire electrode so as to electrically insulate the conductive wire electrode, and with the sensing end of the conductive wire electrode being exposed.