Pressure bandage-splint and method of forming same

Claim 1

AN AIR PRESSURE SPLINT TO AT LEAST PARTIALLY ENCASE AN INJURED, BOOT CLAD HUMAN LEG, SAID SPLINT COMPRISING AN OUTER FLEXIBLE AND RELATIVELY NONSTRETCHABLE WALL, AN INNER FLEXIBLE WALL CONNECTED BY SEAMING ABOUT ITS PERIMETER IN AIR-TIGHT SEALED PORTION TO SAID OUTER WALL TO COACT WITH THE LATTER IN DEFINING DOUBLE-WALLED AND SEALED INFLATABLE ENVELOPE MEANS, SAID ENVELOPE MEANS INCLUDING AN AIR CHAMBER PORTION IN POSITION TO SURROUND AT LEAST A MAJOR PORTION OF THE LEG AND INSTEP, ALONG WHICH CHAMBER PORTION SAID ENVELOPE MEANS HAS SEPARABLE, AIR-TIGHT MARGINS ADAPTED TO BE RELEASABLY CONNECTED TOGETHER TO HOLD SAID CHAMBER PORTION IN SAID SURROUNDING POSITION, RELEASABLE, SELF-LOCKING SLIDE FASTENER CONNECTING MEANS ON LONGITUDINAL ZONES OF SAID RESPECTIVE SEPARABLE MARGINS EXTENDING FROM ADJACENT CORRESPONDING ENDS OF THE LATTER TO TERMINISPACED FROM THE OPPOSITE MARGIN ENDS THEREOF AT A TOE PORTION OF THE SPLINT, THUS TO RELEASABLY CONNECT THE MARGINS TOGETHER, WITH THE CHAMBER PORTION OF THE SPLINT SO