Cell collection device
View Patent ↗This invention relates generally to medical devices, and more particularly, an apparatus and method for collecting cells or tissue samples from the cervix of a patient for medical testing.
1. A method for collecting cells and other biological materials, comprising:
inserting a collection device into a patient's vagina wherein the collection device is comprised of:
a substantially porous distal end portion configured for collecting cells; a proximal end portion having a pump coupled thereto; and an elongated middle portion having a lumen in fluid connection with said distal and proximal end portions and extending therethrough;
wiping the patient's cervix with the substantially porous distal end of the collection device to collect a biological sample;
removing the collection device from the patient's vagina;
inserting the substantially porous distal end of the collection device into a specimen vial containing collection fluid;
drawing fluid into the lumen of the collection device through the substantially porous distal tip by creating negative pressure in the lumen by an actuator; and
expelling the fluid back through the lumen and out of the substantially porous distal end by releasing the negative pressure;
wherein expelling the fluid back through the lumen and out of the substantially porous distal tip releases the collected cells from the porous distal tip and into the collection fluid.
2. The method according to claim 1 , wherein said actuator comprises an elastomeric retention bulb.
3. The method according to claim 1 , wherein said biological sample comprises ectocervical cells.
4. The method according to claim 1 , wherein said substantially porous tip is comprised of an open cell foam material.
5. The method according to claim 1 , wherein said distal and proximal end portions are integrally molded with said elongated middle portion.