fig1 a to 14g illustrate the release of only one staple 910 into a deployed configuration 920 this is for simplicity of illustration only and it should be understood that multiple staples are released at the same time from a number of different circumferentially spaced positions device 100 can be configured to have four five six seven eight nine ten eleven or twelve release apertures 554 and a corresponding number of insertion apertures 556 depending on which configuration may be suited for a particular stapling application additionally although staples 910 appear to be bent between shoulder 668 and delivery tip 142 in fig1 a to 14f such bending of the staple does not occur in quite the way it is illustrated rather such bending if it occurs will be rather smooth instead of being a sharp bend in the wire the angle of release apertures relative to the longitudinal axis of outer delivery sleeve 550 is relatively shallow such as about 1 degree to about 7 degrees for example the angle may be varied depending on the number of release apertures 554 provided in delivery portion 140 the wire used as staples 910 920 may be nitinol wire for example with a diameter of between about 0 1 mm to about 0 5 mm some specific embodiments are configured to deploy staples of about 0 3 mm or about 0 33 mm in diameter the use of shape memory staples as described herein avoids the need for staples to be deformed by being forced against.