The two arms of the t-ring can be blocked on both sides of the fallopian tube opening, sperm can not
through the fallopian tube opening into the fallopian tube, can not meet the egg and achieve the goal of contraception. At the end
of the vertical arm of the t-shaped ring, there is a tail wire that extends out of the cervical opening. It is more convenient to
remove the ring when the ring is due to use or for other reasons when the ring needs to be removed. It is easy to remove the tail
wire by pulling it directly, and there is no need to enlarge the cervical opening, no Pain.