Abstract: Disclosed is a floating platform suitable for supporting a motorized fowl decoy upon a post attached to the-platform. The floating platform comprises a rectangular-shaped solid base portion having a vertically-mounted post attached to the top surface of the platform. Hingedly attached to each long side of the base is a foldable wing frame, each wing frame being a quadrilateral assembly of two longitudinal members and two lateral members, connected by four 90-degree elbows. The longitudinal member of each wing frame is pivotally attached to each long side of the base. The base and each wing are further enclosed in lightweight material to ensure buoyancy of the entire floating platform. The device is easily transportable by pivoting the wing frames upward and carrying the device in the manner of a briefcase.

Abstract: Disclosed is a floating platform suitable for supporting a motorized fowl decoy upon a post attached to the upper surface of the floating platform. The floating platform comprises a rectangular-shaped solid base portion having a vertically-mounted post attached to the top surface of said floating platform. Hingedly attached to each long side of the base is a foldable wing frame, each wing frame being a quadrilateral assembly of two longitudinal members and two lateral members, connected by four 90-degree elbows, with one longitudinal member of each wing frame pivotally attached to each long side of the base. Each wing frame may also comprise a one-piece structure. The base and each wing frame of the floating platform are further enclosed in lightweight material to ensure buoyancy of the entire floating platform. The device is easily transportable by pivoting the wing frames upward and carrying the device in the manner of a briefcase.

Abstract: A pedicle attachment assembly includes a pedicle attachment device having a head. A polyaxial housing has a through bore comprising a base portion and two posts upstanding from the base portion, the posts defining therebetween a slot for receiving a rod. A saddle-shaped element is disposable in the slot and has a part cylindrical recess in an upper surface for engagement in use with the rod. The saddle-shaped element has a convex lower portion for engagement in a complimentary concave recess in an upper surface of the head of the attachment device. The lower surface of the head of the attachment device and the lower end of the through bore in the housing have complementary part spherical surfaces for engagement with one another. A cap assembly is provided for clamping the rod in the housing.

Abstract: A surgical implant, typically a cervical plate assembly, comprises a plate having at least two apertures and two screw threaded fastening devices for securing the plate to bone. Each aperture in the plate has an annular groove intermediate opposite ends of the aperture and each fastening device comprises an outer screw and an inner plug. The screw has a head at one end, a tip at the other end, an externally threaded shank between the head and the tip and an internal bore extending axially through the head and at least part way into the shank for receiving the inner plug. The head comprises a plurality of resiliently deformable fingers separated by one another by axially extending slits. Each finger has an outwardly projecting rib extending circumferentially of the head intermediate opposite ends of the finger for snap fit engagement in the annular groove of a respective plate aperture.

Abstract: A surgical implant, typically a cervical plate assembly, comprises a plate having at least two apertures and two screw threaded fastening devices for securing the plate to bone. Each aperture in the plate has an annular groove intermediate opposite ends of the aperture and each fastening device comprises an outer screw and an inner plug. The screw has a head at one end, a tip at the other end, an externally threaded shank between the head and the tip and an internal bore extending axially through the head and at least part way into the shank for receiving the inner plug. The head comprises a plurality of resiliently deformable fingers separated by one another by axially extending slits. Each finger has an outwardly projecting rib extending circumferentially of the head intermediate opposite ends of the finger for snap fit engagement in the annular groove of a respective plate aperture.

Abstract: The pedicle attachment assembly comprises a pedicle attachment device having a head. A polyaxial housing has a through bore comprising a base portion and two posts upstanding from the base portion, the posts defining therebetween a slot for receiving a rod. A saddle-shaped element is disposable in the slot and has a part cylindrical recess in an upper surface for engagement in use with the rod. The saddle-shaped element has a convex lower portion for engagement in a complimentary concave recess in an upper surface of the head of the attachment device. The lower surface of the head of the attachment device and the lower end of the through bore in the housing have complementary part spherical surfaces for engagement with one another. A cap assembly is provided for clamping the rod in the housing.