Low noise oximetry cable
AssigneeMasimo Corporation
InventorsBenjamin C. Triman, John Schmidt
Life of this patent
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Abstract
The present disclosure includes a cable for a patient monitoring system. The cable can have a flexible and durable overall construction that enables the cable to withstand repeated winding and unwinding and prevent kinks from developing. The cable may include multiple bundles encased in inner jackets that reduce the amount of friction against other cable elements and allows the bundle to move more freely inside an outer jacket of the cable. The multiple bundles may include multiple wires or cords. The cable can include a flexible core that runs through the middle of the cable. The multiple bundles can be twisted, weaved, or untwisted around the core.
Claims25
An oximetry system capable of acquiring signals indicative of one or more physiological parameters of a patient, the oximetry system comprising:
- a noninvasive sensor comprising a detector configured to detect light attenuated by a body tissue of a patient and output a detector signal indicative of the light detected after attenuation by the body tissue;
- a patient monitor configured to receive the detector signal and determine one or more physiological parameters for the patient from the detector signal;
- and
- a cable comprising:
- a core comprising a plurality of fibers;
- a plurality of bundles comprising a first bundle and a second bundle, the first bundle comprising a first plurality of wires and an inner shield at least partially surrounding the first plurality of wires, the second bundle comprising a second plurality of wires, the inner shield being configured to provide electromagnetic interference protection;
- an outer shield at least partially surrounding the first bundle and the second bundle and configured to provide electromagnetic interference protection;
- and
- a jacket at least partially surrounding the outer shield, wherein no bundle of the plurality of bundles is concentric with the core.
A cable for transmitting signals in an oximetry system, the cable comprising:
- a plurality of bundles comprising a first bundle and a second bundle, the first bundle comprising a first plurality of wires and an inner shield at least partially surrounding the first plurality of wires, the second bundle comprising a second plurality of wires, the inner shield being configured to provide electromagnetic interference protection;
- a core comprising a plurality of fibers and configured to reduce a tensile stress exerted on the cable and increase a durability of the cable;
- and
- an outer shield at least partially surrounding the first bundle and the second bundle and configured to provide electromagnetic interference protection,
- wherein no bundle of the plurality of bundles is concentric with the core.
A method of manufacturing a cable for transmitting signals in an oximetry system, the method comprising:
- assembling a first bundle comprising a first plurality of wires and an inner shield at least partially surrounding the first plurality of wires, the inner shield being configured to provide electromagnetic interference protection;
- assembling a second bundle comprising a second plurality of wires;
- and
- placing, within a jacket and an outer shield, the first bundle and the second bundle adjacent to a core so that the first bundle and the second bundle are not concentric with the core, the outer shield being configured to provide electromagnetic interference protection, the core comprising a plurality of fibers.
Dependencies are inferred from the claim text.