US Patent Issued to COOL RENEWAL on Sept. 8 for "Cryosurgery coolant delivery system and method of preparing and using the same" (Tennessee Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,727,929, issued on Sept. 8, was assigned to COOL RENEWAL LLC (Nashville, Tenn.).

"Cryosurgery coolant delivery system and method of preparing and using the same" was invented by Ashley Lindsey Rains (Brentwood, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cryosurgery coolant delivery system may include a canister body defining an inner chamber, a canister head portion coupled to the canister, and a coolant contained in the inner chamber. The coolant may include a mixture of 1,1,1,2-tetrafluoroethane (HFC-134a), 2,3,3,3-tetrafluoropropene (HFO-1234yf), pentafluoroethane (HFC-125), and difluoromethane (HFC-32). In other aspects, the coolant may ...