Low noise oximetry cable including conductive cords
First Claim
1. A medical cable configured to communicate signals indicative of light attenuated by body tissue from a noninvasive optical sensor positioned with respect to said tissue to a patient monitor, said patient monitoring configured to process said signals and determine one or more physiological parameters of a patient, the cable comprising:
- an inner bundle including (i) a wire configured to carry said signals, said wire including a conductor surrounded by an insulator and (ii) at least one flexible compressible conductive polymer cord;
an inner shield at least partially surrounding the inner bundle;
an inner jacket surrounding said inner shield; and
an outer jacket;
wherein said flexible compressible conductive polymer cord does not carry an inner conducting wire.
4 Assignments
0 Petitions
Accused Products
Abstract
In an embodiment, one or more conductive cable cords are twisted with the sensitive signal carrying cables. The cords may advantageously comprise dummy wires, or very flexible hollow cables without an inner conductor. As the conductive cords do not carry and inner conductor, the conductive cords are individually flexible and small, resulting in a twisted bundle that more is flexible while potentially having a smaller outer diameter.
807 Citations
18 Claims
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1. A medical cable configured to communicate signals indicative of light attenuated by body tissue from a noninvasive optical sensor positioned with respect to said tissue to a patient monitor, said patient monitoring configured to process said signals and determine one or more physiological parameters of a patient, the cable comprising:
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an inner bundle including (i) a wire configured to carry said signals, said wire including a conductor surrounded by an insulator and (ii) at least one flexible compressible conductive polymer cord; an inner shield at least partially surrounding the inner bundle; an inner jacket surrounding said inner shield; and an outer jacket; wherein said flexible compressible conductive polymer cord does not carry an inner conducting wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical cable comprising:
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a flexible, shape-wise collapsible conductive cord weaved together with one or more wires, the one or more wires communicating low level signals usable to determine measurements of physiological parameters of a patient monitored by one or more medical devices communicating through said one or more wires to one or more medical monitors; a first jacket and shield enclosing said flexible, shape-wise collapsible conductive cord to form an inner bundle; and a second jacket enclosing said inner bundle; wherein said flexible, shape-wise collapsible conductive cord does not carry an inner conducting wire. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification