Int J Shoulder Surg Close
 

Figure 9: Schematic drawing of the grasping arms of a suture device without offset (large triangle sides a and d) open at a 30°angle (σ) around a 10 mm thick tendon (b). If the distance between the device hinge and needle (vertical unlabeled line) is 2 cm (a), then the desired needle exit point is 2 cm along sides (d) and (c) at position (x). If the needle penetrates perpendicular to the lower limb of the grasper (side a), it will exit at the top corner of the triangle in the diagram. This point is 2.31 cm from the hinge (d = 1.73 cm + c = 0.58 cm), or 0.31 cm distal to the desired needle exit point (x)

Figure 9: Schematic drawing of the grasping arms of a suture device without offset (large triangle sides a and d) open at a 30°angle (σ) around a 10 mm thick tendon (b). If the distance between the device hinge and needle (vertical unlabeled line) is 2 cm (a), then the desired needle exit point is 2 cm along sides (d) and (c) at position (x). If the needle penetrates perpendicular to the lower limb of the grasper (side a), it will exit at the top corner of the triangle in the diagram. This point is 2.31 cm from the hinge (<i>d</i> = 1.73 cm + <i>c</i> = 0.58 cm), or 0.31 cm distal to the desired needle exit point (x)