A medical product (100), preferably for use in treating, in particular filling and/or closing a bone cavity, wherein the product (100) comprises a plurality of interconnected members (110), wherein each member (110) has a peripheral boundary (120) and the boundaries (120) of adjacent members (110) engage with one another. Also, a method for producing the medical product (100) and a medical kit that comprises the medical product (100) and a securing element for securing the product (100) in a bone cavity and to a method for filling a bone cavity.