Abstract: An adjustable foil having a suction surface and a pressure surface. The foil comprises an adjustable internal frame comprising a base, a plurality of articulately connected sections forming the suction surface of the foil, arranged consecutively from the leading edge of the foil to the trailing edge of the foil, and a plurality of frame struts, each articulately connected to the base and to a section of the plurality of sections. The foil is movable from a collapsed configuration to an expanded configuration by rotating the frame struts with respect to the base.

Abstract: A replaceable suturing head for a suturing device includes a suturing portion. The suturing portion comprises a curved suturing needle arranged to move around a circular path defined by a plurality of rollers mounted on roller shafts within the suturing portion, at least one of the plurality of rollers being a drive roller driven by the drive motor to move the suturing needle around the circular path. One or more of the roller shafts is mounted within the suturing portion so that it can pivot around its base.

Abstract: A replaceable suturing head (3) for a suturing device (1) comprising a control assembly (8-11). The suturing head comprises a suturing portion (4). The suturing portion comprises a curved suturing needle (16) arranged to move around a circular path defined by a plurality of rollers (35,36,37,38,39,40,44,45,46,47) mounted on roller shafts (41,42,43) within the suturing portion, at least one of the plurality of rollers being a drive roller driven by the drive motor (10) to move the suturing needle (16) around the circular path. One or more of the roller shafts is mounted within the suturing portion so that it can pivot around its base.