Abstract: An electrosurgical device for directing energy to a target volume of tissue includes a coaxial feedline having an inner conductor, an outer conductor coaxially disposed around the inner conductor, and a dielectric material disposed therebetween. An elongated electrically-conductive member is longitudinally disposed at a distal end of the inner conductor; a balun structure is disposed on the outer conductor. An electrically-conductive cylinder is coaxially disposed around a distal portion of the balun structure and a dielectric structure is disposed substantially adjacent to a distal end of the electrically-conductive cylinder and configured to extend to a distal end of the electrically-conductive member. An elongated handle assembly is coaxially disposed around a portion of the outer conductor proximal to the dielectric structure and a shell assembly is disposed at a distal end of the elongated handle assembly.

Abstract: An electrosurgical device for directing energy to a target volume of tissue includes a coaxial feedline having an inner conductor, an outer conductor and a dielectric material disposed therebetween. A proximal cylindrical dielectric sleeve is coupled to the inner conductor at a distal end of the coaxial feedline. A distal cylindrical dielectric sleeve is coupled to the inner conductor. First and second dielectric segments are coupled to the inner conductor and disposed between the proximal cylindrical dielectric sleeve and the distal cylindrical dielectric sleeve. The device also includes an elongated shaft overlying the proximal cylindrical dielectric sleeve, the first dielectric segment, the second dielectric segment and the distal cylindrical dielectric sleeve. The elongated shaft includes an opening defined therethrough, wherein the opening is at least partially aligned with the first dielectric segment.

Abstract: An electrosurgical device for directing energy to a target volume of tissue includes a coaxial feedline having an inner conductor, an outer conductor coaxially disposed around the inner conductor, and a dielectric material disposed therebetween. An elongated electrically-conductive member is longitudinally disposed at a distal end of the inner conductor. A balun structure is disposed on the outer conductor. The device also includes an electrically-conductive cylinder coaxially disposed around a distal portion of the balun structure, and a dielectric structure disposed substantially adjacent to a distal end of the electrically-conductive cylinder, wherein the dielectric structure longitudinally extends from the distal end of the electrically-conductive cylinder to a distal end of the electrically-conductive member.

Abstract: A joint-specific apparatus that reliably retains a cold pack in a preselected position and under compression adjacent to an anatomical structure such as a limb or joint, or adjacent to an anatomical region, to maximize the desired therapeutic effect when that anatomical structure or region is cooled or heated.

Abstract: A tubular member useful as an inner liner for the working channel of a flexible endoscope has a distal portion which is specially treated to make it highly flexible and resistant to kinking or collapsing when it bends with the flexible section of the endoscope. The tubular member is also useful as a catheter device or as a component of a catheter device or catheter system. A helically wound wire is drawn into the wall of the tubing to prevent kinking or buckling of the wall or collapsing of the inner lumen. External ridges may be formed by convolutions of the tubing wall or by external threads that are formed on the exterior of the tubing wall within the flexible distal portion. An outer helical reinforcing coil may be added between the external ridges to further reinforce the flexible distal portion of the tubular member from kinking or collapsing.

Abstract: Ophthalmic endoscope (1) for use with an endoscope attachment (2) having a tubular body member (18), the endoscope (1) having a rigid probe (9) on which the endoscope attachment (2) is slidingly mounted.

Abstract: An apparatus for cooling the brain of a patient includes a housing for engagement on a neck of the patient and one or more nozzles for receiving a coolant fluid from an external coolant source and providing a directed mist of the coolant. The nozzles are mounted within the housing and are aligned such that the mist of coolant is directed to the neck of the patient. The apparatus can include a brain temperature sensor operatively coupled to a controller to regulate the discharge of the mist of coolant to maintain a desired brain temperature.

Abstract: An apparatus (10) for use in percutaneous surgery includes a cannula (11), a first support (20), and a second support (40). The cannula (11) has a channel (12) extending into the cannula (11). The channel (12) has a central axis (14). The first support (20) is associated to the cannula (11) and has a circular perimeter (21) which has a center (22) on the central axis (14). The second support (40) supports a viewing element (200) which extends into the channel (12). The second support (40) is rotatable about the center (22) of the circular perimeter (21) of the first support (20) relative to the first support (20).

Abstract: A tubular member useful as an inner liner for the working channel of a flexible endoscope has a distal portion which is specially treated to make it highly flexible and resistant to kinking or collapsing when it bends with the flexible section of the endoscope. The tubular member is also useful as a catheter device or as a component of a catheter device or catheter system. A multiplicity of external ridges on the distal portion of the tubular member reinforce the tubing wall and prevent kinking or buckling of the wall or collapsing of the inner lumen. The external ridges may be formed by convolutions of the tubing wall or by external threads which are formed on the exterior of the tubing wall within the flexible distal portion. An outer helical reinforcing coil may be added between the external ridges to further reinforce the flexible distal portion of the tubular member from kinking or collapsing.

Abstract: A stent crimping apparatus for crimping a deformable radioactive stent onto a deployment device which includes a first jaw member defining a shielded first compression surface, and an opposed, second jaw member defining a shielded second compression surface oriented opposite the first compression surface. The first and second compression surfaces are adapted to collectively form an elongated guide bore formed for axial receipt of the deformable stent and the deployment device therein. To protect against exposure to the radioactive stent, a shield assembly is provided defining an opening into a bore therein which is formed and dimensioned for longitudinal receipt of the deformable stent in an uncrimped condition. A shield assembly defines an opening into the bore, and cooperates with the first and second jaw members to substantially prevent radioactive particles emitted by the radioactive stent from passing out of the crimping apparatus.

Abstract: A cooling system for the head, neck, and spine to reduce swelling caused by trauma to the brain is disclosed comprising a head device having a front panel and a back panel, a neck brace supporting the head device using a front rigid member and a back rigid member, and a cooling medium that cools the head device when activated.