Abstract: A laryngeal mask airway device includes an airway tube and a laryngeal mask placed at a distal end of the airway tube. The distal end of the airway tube opens inside the laryngeal mask. The device includes a connector placed at a proximal end of the airway tube. The connector is in fluid communication with the laryngeal mask through the airway tube and is configured to be connected to a ventilation equipment. The device includes a movable element placed in the laryngeal mask and configured to steer a tip of a catheter passing through the airway tube. The device further includes a control element mounted on the proximal end of the airway tube and a motion transmission device operatively connected to the movable element and to the control element to move the movable element and to steer the tip of the catheter by acting on the control element.

Abstract: A tree stand includes a frame and a strap for attaching the frame to a tree. The strap includes engagement features and a latch is pivotably coupled to the frame for selectively engaging the engagement features. The latch is pivotable between a locked position for engaging the engagement feature of the strap and an unlocked position for being disengaged with the engagement feature of the strap. The latch includes a finger extending from the body receiving the engagement feature when the latch is in the locked position.

Abstract: A tree stand includes a frame and a strap for attaching the frame to a tree. The strap includes engagement features and a latch is pivotably coupled to the frame for selectively engaging the engagement features. The latch is pivotable between a locked position for engaging the engagement feature of the strap and an unlocked position for being disengaged with the engagement feature of the strap. The latch includes a finger extending from the body receiving the engagement feature when the latch is in the locked position.

Abstract: A broadhead which is light in weight and which has surface area to decrease arrowhead weight, surface area and drag to increase performance of an arrow to which it is attached. The broadhead attaches to the arrow in one of the known ways, glue, screw, friction or interference fit. A broadhead wrench may need to be used to protect the user from sharp edges while handling the broadhead. The blade portion of the broadhead aids in the hemorrhaging of the target by creating a larger conduit for bleeding to occur, thus speeding death of a game animal.

Abstract: An improved arrowhead features two sets of expandable blades. The expandable blades are pivotally movable from a first, concealed position to a second expanded position when spurs on the front of the blades contact a target. The first concealed position of the blades allows the arrowhead to penetrate the target upon contact. The fixed blades may be diamond-shaped, double-edged replaceable blades. The expandable blades comprise at least two pivotable blades that can be held in the first safe position by an elastic band. The spurs are located at a first end of the expandable blades, and these spurs are located proximate the base of the fixed blade portion of the arrow head, to allow the fixed portion to penetrate the target before the expandable blades are deployed by the spurs contacting the target.

Abstract: An implantable marker, instruments for implanting the marker and method for implanting the marker are described. The implantable marker comprises a housing with an outer surface providing a bone anchor and having a cavity within which a marker detectable by a tracking system is secured. The kit includes a guide instrument having a guide channel for receiving an implantable marker, an insertion tool receivable within the channel and having a distal end for releasably engaging an implantable marker, and an implantable marker receivable within the channel. The insertion tool is operable to drive the implantable marker into the bone. The method includes puncturing the skin with an instrument, driving the implantable marker into the bone and withdrawing the instrument, leaving the marker implanted within the bone.

Abstract: A broadhead which is light in weight and which has surface area to decrease arrowhead weight, surface area and drag to increase performance of an arrow to which it is attached. The broadhead attaches to the arrow in one of the known ways, glue, screw, friction or interference fit. A broadhead wrench may need to be used to protect the user from sharp edges while handling the broadhead. The blade portion of the broadhead aids in the hemorrhaging of the target by creating a larger conduit for bleeding to occur, thus speeding death of a game animal.

Abstract: A portable ladder stand for supporting a hunter or naturalist above the ground includes a ladder portion, an upper assembly portion and a seat portion. The ladder portion includes a plurality of components including an intermediate ladder segment, ladder extension segment and lower ladder segment. The ladder segments are include vertical rails and horizontal rungs extending between the rails, and the segments are nestingly connected together. The vertical rails include male peg connectors and female socket connectors that are configured in such a way as to limit the number of ladder extension segments that can be included in the ladder portion of the ladder stand.

Abstract: A concealment system includes one or more independently positionable masking panels. Each of the panels is independently supported by a hub and strut frame, and employs various interchangeable camouflage sheet materials. A polygonal perimeter strip has strut-engaging pockets thereon with a pocket located at each corner of the panel, and structure for mounting a masking panel thereon. Dual ball mount are attached to a platform and to a base portion of the frame hub, respectively. A positioning arm, having independently adjustable socket clamps, extends between the two ball mount to support the panel frame. An improved hub design eliminates guide channels therein, and employs cabling to attach the struts. The positioning arm has a single span with socket clamps permanently attached to each end so that each clamp can be independently adjusted.

Abstract: An improved arrowhead features two sets of expandable blades. The expandable blades are pivotally movable from a first, concealed position to a second expanded position when spurs on the front of the blades contact a target. The first concealed position of the blades allows the arrowhead to penetrate the target upon contact. The fixed blades may be diamond-shaped, double-edged replaceable blades. The expandable blades comprise at least two pivotable blades that can be held in the first safe position by an elastic band. The spurs are located at a first end of the expandable blades, and these spurs are located proximate the base of the fixed blade portion of the arrow head, to allow the fixed portion to penetrate the target before the expandable blades are deployed by the spurs contacting the target.

Abstract: A pivotally foldable ladder module apparatus, for use by hunters and wildlife enthusiasts, includes upper and lower body segments which are pivotally connected to one another. The apparatus includes a locking fastener for temporarily fixing the position of the lower body segment relative to the upper body segment. The apparatus may also include an adjustable strap attached to a central shaft of the upper body segment, to permit fastening of the apparatus to a tree. The apparatus is pivotally movable between an extended position and a folded position used for storage and transport. Each segment includes a central shaft, and a pair of tree-contacting bracket members for aligning the apparatus with a tree. When the apparatus is in the folded position, the tree-contacting bracket members are displaced from one another, and the respective central shafts are spaced apart from one another and are oriented substantially parallel to one another.

Abstract: An implantable marker, instruments for implanting the marker and method for implanting the marker are described. The implanta+e marker comprises a housing with an outer surface providing a bone anchor and having a cavity within which a marker detectable by a tracking system is secured. The kit includes a guide instrument having a guide channel for receiving an implanta+e marker, an insertion tool receivable within the channel and having a distal end for releasably engaging an implanta+e marker, and an implanta+e marker receiva+e within the channel. The insertion tool is operable to drive the implanta+e marker into the bone. The method includes puncturing the skin with an instrument, driving the implanta+e marker into the bone and withdrawing the instrument, leaving the marker implanted within the bone.

Abstract: A portable ladder stand for supporting a hunter or naturalist above the ground includes a ladder portion, an upper assembly portion and a seat portion. The ladder portion includes a plurality of components including an intermediate ladder segment, ladder extension segment and lower ladder segment. The ladder segments are include vertical rails and horizontal rungs extending between the rails, and the segments are nestingly connected together. The vertical rails include male peg connectors and female socket connectors that are configured in such a way as to limit the number of ladder extension segments that can be included in the ladder portion of the ladder stand.

Abstract: A concealment system includes one or more independently positionable masking panels. Each of the panels is independently supported by a hub and strut frame, and employs various interchangeable camouflage sheet materials. A polygonal perimeter strip has strut-engaging pockets thereon with a pocket located at each corner of the panel, and structure for mounting a masking panel thereon. Dual ball mount are attached to a platform and to a base portion of the frame hub, respectively. A positioning arm, having independently adjustable socket clamps, extends between the two ball mount to support the panel frame. An improved hub design eliminates guide channels therein, and employs cabling to attach the struts. The positioning arm has a single span with socket clamps permanently attached to each end so that each clamp can be independently adjusted.

Abstract: A portable ladder stand for outdoor use, which provides a hunter or naturalist with an elevated vantage point for viewing or harvesting game. The stand includes a pivotally attached seat to permit the hunter or naturalist to change from a seated position to a standing position or vice versa in a comfortable and secure manner. The stand further includes a plurality of adjustable rests, capable of being manipulated by the hunter or naturalist in either the seated or standing position, for convenient placement of various objects, such as a bow, pack, camera or gun.

Abstract: A stove for outdoor use includes a hollow shell formed from heat-tolerant material, and a substructure for supporting the shell. The stove also includes a burner assembly, operatively attached to the shell or to the substructure, and a vessel support rack for placement on the shell. The support rack is formed from multiple interconnected segments. A first vessel-supporting surface is defined on a first side of the support rack, for supporting a cooking vessel having a substantially flat lower surface. A second vessel-supporting surface is defined on a second side of the support rack, for supporting a cooking vessel having a substantially non-flat lower surface. The second vessel-supporting surface may be configured to support a concave cooking implement, such as a wok thereon. The support rack is configured to fit into the shell with either the first vessel-supporting surface or the second vessel-supporting surface facing upwardly.

Abstract: A decoy adapter stand allows a floatable buoyant waterfowl decoy to be adapted for use on land. The decoy adapter stand includes an upper securing bracket, a base, and a vertical spacer joining the upper bracket to the base. The securing bracket is used to secure a floatable buoyant waterfowl decoy to the stand, and the base provides a stable support. In use, the vertical spacer distances the decoy from the surface of the ground, so that the decoy appears to be standing. A first, freestanding embodiment of the decoy adapter stand includes a footed base. A second embodiment of the decoy adapter stand includes a staked base, where portions of the base are insertable into the ground. A method of using the described apparatus to adapt a floatable buoyant decoy for land use is also described.