Heated ovum pick up needle
View Patent ↗An ovum collection device ( 20 ) includes a handle ( 4 ) and a collection needle ( 3 ) extending from the handle. The collection needle has a sharpened tip ( 44 ) for insertion into a follicle of an ovary. A collection duct ( 5 ) in fluid communication with the collection needle extends from the handle to a collection bottle ( 6 ). A heating arrangement ( 14 ) is used to maintain the collection needle at a selected temperature to prevent damage to an oocyte. The heating arrangement may be associated with a needle guide ( 72 ) on an ultrasonic probe such as a transvaginal ultrasonic probe ( 70 ).
1. A transvaginal ultrasonic probe comprising an elongate body, an ultrasonic transmitter and receiver arrangement at a distal end thereof, a groove extending along the elongate body, the groove being adapted to receive in use an aspiration needle for oocyte recovery, the groove including heating means adapted to maintain an aspiration needle when received in the groove at a selected temperature.
2. A transvaginal ultrasonic probe as in claim 1 wherein the selected temperature is 37° C. plus or minus 4° C. being just at or above or below the optimum temperature to maintain the oocyte during a collection procedure.
3. A transvaginal ultrasonic probe as in claim 1 wherein the heating means in the groove comprises an electrical resistance heating pad which also supports and guides the needle.
4. A transvaginal ultrasonic probe in combination with an aspiration needle, the transvaginal ultrasonic probe comprising an elongate body, an ultrasonic transmitter and receiver arrangement at a distal end thereof, a groove extending along the elongate body, the groove receiving in use the aspiration needle for oocyte recovery, the groove including heating means adapted to maintain the aspiration needle when received in the groove at a selected temperature.
5. A transvaginal ultrasonic probe in combination with an aspiration needle as in claim 4 wherein the aspiration needle is selected from a group comprising a single lumen needle, a dual lumen needle or a dual coaxial lumen needle.
6. A transvaginal ultrasonic probe in combination with an aspiration needle as in claim 4 wherein the aspiration needle is manufactured from a material selected from polymeric material, a metal, a ceramic or a glass.
7. A transvaginal ultrasonic probe in combination with an aspiration needle as in claim 4 wherein the selected temperature is 37° C. plus or minus 4° C. being just at or above or below the optimum temperature to maintain the oocyte during a collection procedure.
8. A transvaginal ultrasonic probe in combination with an aspiration needle as in claim 4 wherein the heating means in the groove comprises an electrical resistance heating pad which also supports and guides the needle.