Cryotherapy device and method for the treatment of cervical precancerous lesions

A device that is adapted to connect to the outlet of a pressurized tank containing liquid carbon dioxide for providing a patient with cryotherapy process that is directed to the ablation of a lesion on said patient, said device comprising:

• a piping assembly having a distal and a proximal end and a configuration adapted to allow said distal end to connect to said pressurized tank outlet so as to create a spray of carbon dioxide snow as a result of the freezing of said carbon dioxide upon its exhaustion from said piping assembly,
• a tubular, snow horn having a distal and a proximal end, a boundary wall extending between said ends and enclosing the interior region of said snow horn, said snow horn also having a configuration adapted to allow said snow horn distal end to connect said piping assembly proximal end,
• a tubular applicator having a distal and a proximal end and a boundary wall extending between said ends and a configuration adapted to allow said applicator distal end to temporarily connect to said snow horn proximal end, and wherein said tubular applicator boundary wall having a plurality of vent holes,
• wherein said configurations of the tubular snow horn and the tubular applicator are further adapted to allow for the collection in said tubular applicator of a quantity of said carbon dioxide snow in the range of 8-10 grams and having a density in the range of 8-11 g/in3,
• an applicator tip having an inner and outer surface that includes a metal portion and a configuration adapted to allow said applicator tip to connect to said applicator distal end during said cryotherapy process and to allow said metal portion of said outer surface of said applicator tip to come into contact with said patient, and
• a push rod having a distal end and a proximal end and a base attached to said push rod distal end and having a configuration adapted to allow said push rod distal end to variably extend into said tubular applicator from said applicator proximal end so as to allow said push rod base to serve as the furthest point in said tubular applicator from said applicator distal end that said spray of carbon dioxide snow can collect.