A disposable medical introduction system including a medical device and a disposable inserter. The disposable inserter includes a carrier to receive the medical device. The carrier includes at least one annular projection. The disposable inserter includes a retractor received within the at least one annular projection and movable relative to the at least one annular projection. The retractor has at least one retaining arm. The disposable inserter includes a needle cartridge coupled to the retractor that includes an insertion needle. The at least one retaining arm cooperates with the needle cartridge to maintain the insertion needle in a first, extended state. A movement of the retractor relative to the at least one annular projection releases the at least one retaining arm to move the insertion needle from the first, extended state to a second, retracted state.