Disability insurance is designed to replace lost income while you are disabled and unable to earn enough to meet your expenses.
You can buy an individual policy that is tailored to your particular needs.

Critical illness plans and/or riders on other types of individual or group plans pay you a cash lump sum if you are diagnosed with a life-threatening illness such as cancer, heart disease requiring surgery, heart attack or stroke. Some critical illness policies also cover kidney failure, blindness,organ transplant, paraplegia, quadriplegia, and/or dementia (including Alzheimer’s disease).
You can use the money for anything you want: to pay off debts, to finance expensive medical equipment or special home care, to pay for child care, to change careers or to start a small business.