A Bridgeport cancer patient says an immigration hurdle is keeping him from getting treatment that could potentially save his life.

David Hidalgo, 31, needs a bone marrow transplant to treat his acute lymphoblastic leukemia. He is a Bridgeport carpenter and handyman, but he's currently fighting for his life at Yale's Smilow Cancer Hospital.

He is originally from Costa Rica and is married to a naturalized American citizen.

None of Hidalgo's family members in the country are a match, so they are trying to get his relatives from Costa Rica to travel to the United States.

Sen. Richard Blumenthal is working with the Hidalgo family to try and get the U.S. State Department to relax their visa requirements on an emergency humanitarian basis.

"David is exactly the kind of person that we want to come to this country, a man with a great family, big heart, a strong work ethic," says Blumenthal.

David Hidalgo's 11-year-old son, Santiago Hidalgo, is hopeful that somebody will help his father in his time of need.

"We need his brothers and sisters here so we can help him get through this bad situation," Santiago Hidalgo says.

The family has set up a GoFundMe to help with medical expenses.