Subcostal self-adaptive incision closing protector and using method thereof

The invention discloses a subcostal self-adaptive incision closing protector and a using method thereof. The subcostal self-adaptive incision closing protector comprises a hollow outer sleeve which is made from an elastic material, and two ends of the hollow outer sleeve are opened; the outer sleeve is represented as a double-head trumpet which is in smooth shrinkage from two ends to middle; an outer port and an inner port are formed in two ends of the outer sleeve; around the outer wall of the outer sleeve, the side, close to the inner port, of the outer sleeve, is provided with an airbag; a hollow inner sleeve with two ends opened is fixedly arranged on the part, close to the outer port, of the interior of the outer sleeve; a unidirectional air intake part is arranged at the end, close to the outer port, of the inner sleeve; and by virtue of the unidirectional air intake part, gas in the inner sleeve is prevented from flowing towards the outer port from the unidirectional air intake part. Such problems as air leakage around a subcostal incision, lens contamination due to blood stains of the incision, incision bleeding caused by repeatedly inserting and withdrawing a puncture outfit and the like in the prior art are solved.