Patent ID: 8490625

Claim:
An intrauterine device string for attachment to an intrauterine device for a female, the female having a cervix comprising an endocervical canal and an external orifice, the intrauterine device string comprising: an elongated member with an upper portion, an intermediate portion, and a lower portion; wherein said upper portion is configured to attach said elongated member to the intrauterine device, wherein said intermediate portion is configured to extend through the endocervical canal, and wherein said lower portion comprises a first curved portion configured to follow a contour of the external orifice of the cervix; and a second curved portion at an end of said lower portion having a memory-retaining material to prevent said second curved portion from passing through the external orifice of the cervix and to constrain said second curved portion to follow the contour of the outer portion of the cervix; and wherein said intermediate portion is configured to pass through a plane defined by three points on said second curved portion when in use.