Tourniquet cuff with a tightness indicator
First Claim
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1. A tourniquet cuff, comprising:
- a body capable of being wrapped around a limb, the body including a securing strap, a securing portion, and a main member having an inflatable bladder, wherein the securing portion is capable of being releasably engaged to the main member, and wherein the bladder has an unpressurized state and a pressurized state;
an indicator including a resiliently extendable member, the resiliently extendable member including a first portion attached to the securing strap at a first discrete location and a second portion attached to the securing strap at a second discrete location, wherein the first and second portions are separated by a distance;
wherein the indicator operates in response to movement of the securing portion for locating where the securing portion is to engage the main member in order to apply a predetermined amount of force sufficient to secure the body to the limb without causing significant venous occlusion at the limb; and
wherein the distance between first and second portions of the resiliently extendable member increases when the securing strap transitions from a relaxed state to a taut state.
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Abstract
A tourniquet cuff has a body configured for being wrapped around a limb. The body has an unpressurized state and a pressurized state. A securing portion on the body is releasably engageable to the body. The cuff also has an indicator that operates in response to movement of the securing portion for locating where the securing portion engages the body in order to apply a predetermined amount of force sufficient to secure the body to a limb without causing significant venous occlusion at the limb when the body is in the unpressurized state.
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Citations
19 Claims
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1. A tourniquet cuff, comprising:
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a body capable of being wrapped around a limb, the body including a securing strap, a securing portion, and a main member having an inflatable bladder, wherein the securing portion is capable of being releasably engaged to the main member, and wherein the bladder has an unpressurized state and a pressurized state; an indicator including a resiliently extendable member, the resiliently extendable member including a first portion attached to the securing strap at a first discrete location and a second portion attached to the securing strap at a second discrete location, wherein the first and second portions are separated by a distance; wherein the indicator operates in response to movement of the securing portion for locating where the securing portion is to engage the main member in order to apply a predetermined amount of force sufficient to secure the body to the limb without causing significant venous occlusion at the limb; and wherein the distance between first and second portions of the resiliently extendable member increases when the securing strap transitions from a relaxed state to a taut state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A tourniquet cuff comprising:
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a main member including a distal portion, the main member configured to be wrapped around a limb, the main member including an inflatable bladder, wherein the inflatable bladder has an unpressurized state and a pressurized state; a securing strap having an attachment end portion connected to the distal portion of the main member and a free end portion configured to be releasably engaged to the main member upon wrapping around the limb; a resilient member including a proximal portion connected to the distal portion of the main member and an intermediate section configured to generally coextend alongside and substantially parallel to the securing strap when the securing strap is in a taut state; and an indicator configured for indicating that the securing strap has been wrapped around a limb a sufficient distance for the main member to apply a predetermined amount of force to the limb without causing significant venous occlusion at the limb. - View Dependent Claims (16, 17, 18)
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19. A tourniquet cuff comprising:
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a body configured to be wrapped around a limb, the body including an inflatable bladder having an unpressurized state and a pressurized state, a main member, a resilient member and a securing strap having a first end secured to the main member and a second free end configured to be releasably engaged to the main member when wrapped around a limb, wherein the first end and the second free end are separated by a distance; wherein the resilient member is configured to be stretched from a first length to a second length, wherein the resilient member includes an intermediate section configured to generally extend alongside and adjacent the securing strap when the securing strap is in a taut state and configured to be free to move away from the securing strap when the securing strap is in a slackened state and wherein the distance between the first end and second free end increases as the resilient member transitions from a relaxed stated to the taut state; wherein the second free end of the securing strap is configured to be releasably engaged to the main member while the securing strap is wrapped around the limb with the resilient member stretched to the second length; and wherein the resilient member is configured to indicate when the body has applied a predetermined amount of force to the limb when the body is in the unpressurized state to secure the body to the limb without causing significant venous occlusion at the limb when the resilient member is stretched to the second length.
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Specification