This discloses a device for closure of an opening in a medical patient's subcutaneous tissue wall. The devices disclosed included a catheter having one or more inflatable, bio-degradable balloon and one or more sheets of ECM material loaded on and around said catheter. Upon inflation of the one or more balloons the sheet(s) of ECM material are held against the tissue wall by the balloon(s). Surgical methods using the device are also disclosed.
