System for embryo transfer

An apparatus suitable for delivering a fertilized egg or embryo into a maternal uterine endometrium in a mammal, comprising a body and an inner body, wherein the body is configured to fit within a lumen of the female reproductive system and comprises:

• a lumen extending from a proximal end of the body to a distal portion of the body and having a distal opening at the distal portion of the body, the lumen configured to slidably receive the inner body having a distal end suitable for penetrating an endometrial epithelium;
• the apparatus further comprising:
• a first actuator operable to advance the inner body out from the distal opening of the body and a second actuator operable to expel a fertilized egg from the inner body,
• a measurement assembly comprising a measurement portion disposed at the distal portion of the body, the measurement assembly being configured to measure whether the apparatus is in a first state indicating that a distance between the distal portion of the body and the endometrial epithelium is greater than a predetermined distance, or a second state indicating that a distance between the distal portion of the body and the endometrial epithelium is equal to or less than a predetermined distance;
• and
• an indicating device coupled to the measurement assembly and configured to indicate that the measurement assembly is in the first state or the second state;
• wherein the first actuator is operable to advance the inner body out from the distal opening by at least the predetermined distance.