Surgery – Instruments – External pressure applicator
Patent
1996-07-10
1998-04-21
Dawson, Glenn
Surgery
Instruments
External pressure applicator
606201, A61B 1700
Patent
active
057412952
ABSTRACT:
An overlapping tourniquet cuff system for improved application of pressure to the limb, including an inflatable bladder; a sheath for containing the inflatable bladder wherein the sheath has a length sufficient to encircle the limb and overlap on itself in a substantially circumferential direction around the limb; a mechanism for securing the overlapped sheath around the limb; and a stiffening mechanism for superimposing over a region of the overlapped and secured sheath to constrain the shape of the sheath beneath the region when the bladder is inflated. The stiffening mechanism includes a securing mechanism for securing the overlapping sheath in a substantially circumferential direction around the limb independently of the sheath securing mechanism such that the sheath remains overlapped and secured in a substantially circumferential direction if the sheath securing mechanism is not engaged or becomes ineffective while the bladder is inflated. The system includes a pressure regulator assembly connected to the cuff for enabling the system to safely occlude flow in blood vessels in the encircled limb.
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Dawson Glenn
McEwen James A.
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