Intrauterine device with retrieval thread

摘要

An intrauterine contraceptive system may include a contraceptive intrauterine device, a retrieval thread permanently attached to the intrauterine device and an insertion device for inserting the intrauterine device into a uterus. The system may also include a release thread releasably coupled with the intrauterine device. The intrauterine device may be deployable out of a distal end of the insertion device and may be configured to change from a delivery configuration when housed in the insertion device to a deployed configuration when deployed in a uterus. The retrieval thread and the optional release thread may be at least partially housed within the insertion device during insertion of the intrauterine device into the uterus. The release thread may extend from the intrauterine device through the insertion device to an attachment point at or near a proximal end of the insertion device.

主权项

1. An intrauterine contraceptive system, comprising:
a contraceptive intrauterine device; a retrieval thread permanently attached to the intrauterine device and having a length of between 5 centimeters and 9 centimeters; an insertion device for inserting the intrauterine device into a uterus, the insertion device comprising a shaft, a proximal end and a distal end; and a release thread releasably coupled with, and not permanently attached to, the intrauterine device, so that when the release thread is no longer needed for securing the intrauterine device to the insertion device, the release thread may be pulled off the intrauterine device, wherein the release thread extends from a first end, located at the proximal end of the insertion device, through the shaft of the insertion device, through the intrauterine device, to an attachment point at or near the proximal end of the insertion device, wherein the intrauterine device is deployable out of the distal end of the insertion device and is configured to change from a delivery configuration when housed in the insertion device to a deployed configuration when deployed in a uterus.