Medical disposable inflatable tourniquet cuff
AssigneeInstrumed, Inc.
InventorJerry L. Spence
Life of this patent
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Abstract
A disposable inflatable tourniquet apparatus includes an inner inflatable bladder formed of two rectangular bladder wall members of polymer impregnated fabric peripherally welded to form a peripheral bond that develops the burst pressure of the bladder wall members. A conduit inflates the bladder, and a fabric cover is peripherally stitched at a border to the bladder at the peripheral bond. A curved stiffener plate is held inside the cover but outside the bladder, and within the stitched border.
Claims19
A medical disposable inflatable tourniquet cuff, comprising:
- (a) a layered pair of flexible, opposed and correspondingly sized bladder wall members, each of an impregnated fabric that can be bonded to the other, each having inner and outer surfaces and positioned face-to-face with the inside surface of one bladder wall member abutting the inside surface of the other;
- (b) the bladder wall members being peripherally joined at a peripheral bond formed between the inside surface of the peripheral edge portion of one wall member and the inside surface of the peripheral edge portion of the other bladder wall member;
- (c) an opening in one of the bladder wall members;
- (d) conduit means for inflating the bladder at the opening;
- (e) at least one cover member placed respectively on one side of and abutting one of the bladder wall members;
- (f) at least one outermost peripheral stitched border strip for peripherally joining the cover member to the bladder wall members at the bond, the strip contacting the peripheral edge portion of the cover member;
- (g) the peripheral bond extending a distance inwardly of the stitched border so that the stitched border does not appreciably affect the burst pressure of the bladder as developed by the peripheral bond;
- (h) a stiffener plate member disposed between one of the bladder walls and the cover member;
- and
- (i) means for securing the cuff around a body part.
The disposable inflatable cuff of claim 8 wherein the strip is generally U-shaped in cross-section.
A medical disposable inflatable tourniquet comprising:
- (a) a generally rectangular bladder comprised of a pair of flexible, impregnated fabric bladder layers, each having cooperating abutting inside surfaces that abut in face-to-face relationship, and being peripherally connected at a welded bond defining an air chamber between the bladder layers and interiorly of the bond;
- (b) the peripheral bond being an inwardly extending bond that fuses the peripheral edge portion of the inside surfaces of each bladder layer beginning at the outer edge thereof and extending a distance sufficient to develop the burst pressure of at least one of the bladder layers;
- (c) an opening in one of the bladder layers;
- (d) a conduit for inflating the bladder at the opening;
- (e) a flexible rectangular fabric cover that encapsulates the bladder, comprised of a pair of rectangular fabric cover panels positioned on opposite sides of the rectangular bladder, and connected by a peripheral stitched border that secures the pair of fabric panels to the bladder, the border including stitching that penetrates the bladder at the bond;
- and
- (f) means for securing the cuff around a body part.
Dependencies are inferred from the claim text.