Abstract: Adaptive graft assemblies and methods of manufacture and implantation are provided herein. In particular, such grafts can be 3D printed and can be defined as standard designs or patient-specific, external sheaths customized for specific vein graft dimensions following minimally/non-invasive vein mapping and computational modeling. The external sheath may include one or more layers of various biomaterials to produce customized biomechanical properties. The external sheath may be made to elute specific bioactive drugs allowing for pharmacologic prevention of adverse remodeling in addition to mechanical support. These customizable features may be tailored for each patient individually depending on specific medical history, including hypertension, diabetes, smoking history, anatomy or any pertinent patient attribute.

Abstract: A splitter module is configured to connect a single medical ventilator to multiple intubated patients. The splitter module is configured to independently control at least one ventilation parameter for each of the patients, such that modifying a ventilation parameter of one of the patients does not significantly affect the ventilation parameters of the other patients.

Abstract: A tool and fastener holder with detachable holding belt to both of which a plurality of male couplers are affixed and able to line a bucket both inside and out and both holder and belt each being amenable to receipt of a plurality of detachable pouches containing various species of fasteners, one species per pouch with the belt able to via a plurality of tool holding components detachably hold various hammers, crowbars, screwdrivers and the like.