Finger-cot probe
First Claim
1. A sensor probe for analyzing at least one characteristic of tissue, comprising:
- a sensor including at least one source of electromagnetic energy and at least one detector of electromagnetic energy;
a carrier supporting said sensor and having a body which is sufficiently flexible to at least partially surround a portion of the tissue, said sensor source and said sensor detector being arranged on said carrier relative to each other so as to transmit said electromagnetic energy between each other and through the tissue with said carrier positioned on the portion of tissue; and
a generally elastic sheath having a first end and a second end, said first end being coupled to said carrier and said second end having a generally tubular shape which is rolled upon itself through at least two revolutions in a first position, said second end adapted to be unrolled from said first position through at least two revolutions toward and over said carrier to a second position in which said sheath surrounds at least a portion of said carrier with the carrier positioned over the portion of tissues.
7 Assignments
0 Petitions
Accused Products
Abstract
An oximetric sensor probe is movably coupled to a patient'"'"'s finger to facilitate transillumination and detection of optical energy through a portion of the patient'"'"'s finger without subjecting the finger to significant deformation. The finger is received within a receptacle having a cup-shaped closed end and an opposite open end that is rolled up upon itself and is adapted to be unrolled longitudinally along the finger to form a tubular enclosure which closely surrounds the finger. An optical source and an optical detector are arranged in spaced axial alignment with each other on opposite sides of the finger so that optical energy transmitted by the source through the finger is received by the detector. The detected light is analyzed to noninvasively determine the saturation of oxygen within the patient'"'"'s blood. By virtue of the non-adhesive connection between the probe and the finger, decoupling the optical path between the source and detector is minimized in the event that the patient moves his finger during testing. The optical source and optical detector also are separable from the finger cot such that the optical sensor may be reused with another finger cot.
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Citations
39 Claims
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1. A sensor probe for analyzing at least one characteristic of tissue, comprising:
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a sensor including at least one source of electromagnetic energy and at least one detector of electromagnetic energy; a carrier supporting said sensor and having a body which is sufficiently flexible to at least partially surround a portion of the tissue, said sensor source and said sensor detector being arranged on said carrier relative to each other so as to transmit said electromagnetic energy between each other and through the tissue with said carrier positioned on the portion of tissue; and a generally elastic sheath having a first end and a second end, said first end being coupled to said carrier and said second end having a generally tubular shape which is rolled upon itself through at least two revolutions in a first position, said second end adapted to be unrolled from said first position through at least two revolutions toward and over said carrier to a second position in which said sheath surrounds at least a portion of said carrier with the carrier positioned over the portion of tissues. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. A sensor probe for analyzing at least one characteristic of tissue, comprising:
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a sensor including at least one source of electromagnetic energy and at least one detector of electromagnetic energy; a carrier supporting said sensor and having a body which is sufficiently flexible to at least partially surround a portion of the tissue, said sensor source and said sensor detector being arranged on said carrier relative to each other so as to transmit said electromagnetic energy between each other and through the tissue with said carrier positioned on the portion of tissue; and a generally elastic sheath having a first end and a second end, said first end being coupled to said carrier and said second end having a generally tubular shape rolled upon itself, said second end adapted to be unrolled toward and over said carrier such that said sheath surrounds at least a portion of said carrier with the carrier positioned over the portion of tissue; and a releasable connector positioned between said carrier and said sheath to separably attach said carrier to said sheath. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A sensor probe for analyzing at least one characteristic of tissue comprising:
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a sensor having at least one source of electromagnetic energy and at least one detector of electromagnetic energy; and a generally elastic, tubular sheath having a first end and a second end, said tubular sheath adapted to be extended from a compact state, in which said first and second ends are separated by a first distance, to an extended state, in which said first and second ends are separated by a second distance, said second distance being at least twice as long as said first distance, said sheath covering a portion of the tissue in said extended state, said sensor coupled to said sheath proximate to said first end and arranged such that said source and said detector transmit electromagnetic energy between each other and through the tissue with the sheath positioned over the portion of tissue in said second state. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of analyzing at least one characteristic of tissue, comprising the steps of:
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providing a source and a detector of electromagnetic energy, said source and detector being interconnected and being separably attached to a retention sheath; positioning said source of electromagnetic energy against the tissue; positioning said detector of electromagnetic energy against said tissue; positioning said retention sheath on a side of said source and detector opposite said tissue with a first end said sheath coupled to said source and detector, said sheath being in a first state in which said first end is separated from a second end by a first distance, said second end being rolled upon itself at least through two revolutions in said first state; unrolling said second end of said sheath at least through two revolutions from said first state over said tissue and over said source and said detector of electromagnetic energy no surround and secure said source and said detector to said tissue in a second state in which said ends of said sheath spaced apart by a distance substantially greater than said first distance; transmitting electromagnetic energy through said tissue; receiving said transmitted electromagnetic energy; generating a signal indicative of said tissue characteristic; rolling said sheath off the tissue; and disconnecting said sheath from said source and said detector of electromagnetic energy. - View Dependent Claims (37, 38)
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39. A method for analyzing at least one characteristic of tissue, comprising the steps of:
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providing a sensor including at least one source of electromagnetic energy and at least one detector of electromagnetic energy, said sensor being supported by a carrier which has a flexible body; positioning said carrier against a portion of said tissue to be analyzed with said source of electromagnetic energy positioned against the tissue and said detector of said electromagnetic energy positioned against said tissue; providing a retention sheath having a tissue receiving end and a rolled end which are integrally connected together; engaging corresponding elements of a releasable connector so as to connect said carrier to said retention sheath; unrolling said retention sheath over said tissue and over said carrier so as to surround and secure said carrier to said tissue; transmitting electromagnetic energy through said tissue; receiving said transmitted electromagnetic energy; generating a signal indicative of said tissue characteristic; rolling said sheath off said tissue; and disconnecting said engaging elements of said releasable connector so as to separate said carrier from said sheath.
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Specification