Medical device component (100) includes that implantation material (102) have support portion (106) and arm section (108) and expander (104), the medical device component further includes that the first suture (110) have first part and are connected to the implantation material of arm, and second part is connected to expander. In addition, the component includes that the second suture (112) have first part and are connected to the implantation material of arm, second part is connected to expander.