Pressurizing cuff
First Claim
1. A cuff for encircling a human limb, comprising in combination:
- (a) an inflatable bladder capable of completely encircling the limb;
(b) a stiffener which causes the bladder when encircling the limb to inflate inwardly;
(c) bladder-securing means for securing the bladder around the limb; and
(d) stiffener-securing means for securing the stiffener around the limb independently of the bladder-securing means such that the bladder remains encircling the limb if either the bladder-securing means of the stiffener-securing means becomes ineffective.
2 Assignments
0 Petitions
Accused Products
Abstract
A cuff which is useful for accurately, reliably and remotely determining the circumference of a limb which the cuff encircles. The cuff comprises a laminate consisting of a low-impedance conductor that does not vary significantly as a result of bending or flexing, and a high-impedance electrically conductive strip which is in electrical contact with the low-impedance conductor along its length, and which is comprised of a material that is sufficiently flexible to remain in electrical contact with the low-impedance conductor along its length while the conductor is bent or flexed; an electrically conductive contact; and, an elongated strip of flexible material to which the laminate and electrically conductive contact are attached, such that a voltage-dividing circuit may be formed when the cuff encircles the limb, the ratio of voltages being relative to the circumference of the limb and being insensitive to the impedance between the laminate and the electrically conductive contact.
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Citations
18 Claims
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1. A cuff for encircling a human limb, comprising in combination:
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(a) an inflatable bladder capable of completely encircling the limb; (b) a stiffener which causes the bladder when encircling the limb to inflate inwardly; (c) bladder-securing means for securing the bladder around the limb; and (d) stiffener-securing means for securing the stiffener around the limb independently of the bladder-securing means such that the bladder remains encircling the limb if either the bladder-securing means of the stiffener-securing means becomes ineffective. - View Dependent Claims (2, 3)
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4. A cuff which is useful for accurately, reliably and remotely determining the circumference of a limb which the cuff encircles, comprising:
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(a) a laminate consisting of (i) a low-impedance conductor comprised of a material which has an impedance that does not vary significantly as a result of bending or flexing; and (ii) a high-impedance electrically conductive strip which is in electrical contact with the low-impedance conductor along its length, and which is comprised of a material that is sufficiently flexible to remain in electrical contact with the low impedance-conductor along its length while the conductor is bent or flexed; (b) an electrically conductive contact; and (c) an elongated strip of flexible material to which the laminate and electrically conductive contact are attached, such that a voltage-dividing circuit may be formed when the cuff encircles the limb, the ratio of voltages being relative to the circumference of the limb and being insensitive to the impedance between the laminate and the electrically conductive contact. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification