11 advantageously through a narrow strip 33 39 which provides a crease to better accommodate the thicknesses of panels 17 and 22 as shown in fig2 to assemble retainer blank 10 and provide retainer 10 39 of fig2 second panel 17 is folded over upon first panel 11 and third panel 22 is folded over upon second panel 17 such that extension 27 on third panel 22 lies upon a portion of underlying second panel 17 finally fourth panel 32 is folded upon panels 17 and 22 to complete the enclosure the fourth panel can be maintained in place by any one or several expedients including the use of adhesive one or more welds such as ultrasonic or radio frequency spot weld 35 and the like it will of course be appreciated that the sequence in which panels 17 22 and 32 are folded to provide assembled retainer 10 39 of fig2 can be varied in a number of ways and still provide an enclosure for an armed suture in the embodiment of the invention shown in fig2 suture retainer 10 39 which has been assembled from retainer blank 10 of fig1 is fabricated from a sheet of thermoplastic resin e g polyethylene terephthalate pet a spunbonded polyethylene sheet material such as dupont 39 s tyvek u00ae etc ultrasonic spot welds 37 and 38 separated by space 39 are formed in the region of extension 27 to secure the opposed interior faces of adjacent panels to each other and to panel 11 and at the same time provide a separate pocket or compartment 40 accommodating the tip region of needle 41 this provision of a pocket for receiving the sharp tip of the needle eliminates the need.