Electrode lead-set for use with bioelectric signal detection/acquisition devices
First Claim
1. A lead set assembly for interconnecting a plurality of electrodes and a separate device, said plurality of electrodes of a type for attaching to a subject for receiving bioelectric signals therefrom, the lead set assembly comprising:
- (a) a condition sense lead having a pair of conductive paths, each of said conductive paths being connectible to one of said electrodes for conveying a bioelectric signal therefrom and capable of having a first noise signal induced therein by electromagnetic emanations; and
(b) a noise pickup lead having a pair of conductive paths each of which being effectively topographically aligned with a corresponding one of said conductive paths of said condition sense lead to form a noise-matched pair therewith and capable of having a second noise signal induced therein by the electromagnetic emanations, thereby enabling said second noise signal to be substantially approximate to said first noise signal in each of said noise-matched pairs, said lead set assembly thus for conveying from said electrodes to said separate device (I) said bioelectric signals and said first noise signals using said conductive paths of said condition sense lead and (II) said second noise signals using said conductive paths of said noise pickup lead.
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Abstract
A lead set assembly is capable of coupling electrodes to a separate device. The assembly includes two leads. The condition sense lead features two conductive paths, each being connectible to one electrode for conveying a bioelectric signal therefrom and capable of having a first noise signal induced therein by electromagnetic emanations. The noise pickup lead also features two conductive paths, each being effectively topographically aligned with one conductive path of the condition sense lead to form a noise-matched pair therewith and capable of having a second noise signal induced therein by the electromagnetic emanations. In each noise-matched pair, this enables the second noise signal to be substantially approximate to the first noise signal. The lead set assembly can thus be used to convey to the separate device (I) the bioelectric and first noise signals using the condition sense lead and (II) the second noise signals using the noise pickup lead.
38 Citations
51 Claims
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1. A lead set assembly for interconnecting a plurality of electrodes and a separate device, said plurality of electrodes of a type for attaching to a subject for receiving bioelectric signals therefrom, the lead set assembly comprising:
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(a) a condition sense lead having a pair of conductive paths, each of said conductive paths being connectible to one of said electrodes for conveying a bioelectric signal therefrom and capable of having a first noise signal induced therein by electromagnetic emanations; and
(b) a noise pickup lead having a pair of conductive paths each of which being effectively topographically aligned with a corresponding one of said conductive paths of said condition sense lead to form a noise-matched pair therewith and capable of having a second noise signal induced therein by the electromagnetic emanations, thereby enabling said second noise signal to be substantially approximate to said first noise signal in each of said noise-matched pairs, said lead set assembly thus for conveying from said electrodes to said separate device (I) said bioelectric signals and said first noise signals using said conductive paths of said condition sense lead and (II) said second noise signals using said conductive paths of said noise pickup lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A lead set assembly for coupling a plurality of electrodes to a separate device, said plurality of electrodes of a type for attaching to a subject for receiving bioelectric signals therefrom, the lead set assembly comprising:
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(a) a condition sense lead having first and second conductive paths, said first and said second conductive paths each being connectible to one of said electrodes for conveying a bioelectric signal therefrom and capable of having a first noise signal induced therein by electromagnetic emanations; and
(b) a noise pickup lead having (I) a first conductive path being effectively topographically aligned with said first conductive path of said condition sense lead to form a first noise-matched pair therewith and capable of having a second noise signal induced therein by the electromagnetic emanations and (II) a second conductive path being effectively topographically aligned with said second conductive path of said condition sense lead to form a second noise-matched pair therewith and capable of having a second noise signal induced therein by the electromagnetic emanations, thereby enabling said second noise signal to be substantially approximate to said first noise signal in each of said noise-matched pairs, said lead set assembly thus for conveying from said electrodes to said separate device (I) said bioelectric signals and said first noise signals using said conductive paths of said condition sense lead and (II) said second noise signals using said conductive paths of said noise pickup lead. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A method of ascertaining a condition of a patient, the method comprising the steps of:
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(a) removably associating a plurality of electrodes with the patient, each of said electrodes for picking up a bioelectric signal indicative of the condition of the patient;
(b) connecting a lead set assembly between said electrodes and a separate device, said lead set assembly including;
(I) a condition sense lead having a pair of conductive paths, each of said conductive paths being connectible to one of said electrodes for conveying a bioelectric signal therefrom and susceptible to having a first noise signal induced therein by electromagnetic emanations; and
(II) a noise pickup lead having a pair of conductive paths each of which being effectively topographically aligned with a corresponding one of said conductive paths of said condition sense lead to form a noise-matched pair therewith and susceptible to having a second noise signal induced therein by the electromagnetic emanations, thereby enabling said second noise signal to be substantially approximate to said first noise signal in each of said noise-matched pairs, said lead set assembly thus for conveying from said electrodes to said separate device (I) said bioelectric signals and said first noise signals using said conductive paths of said condition sense lead and (II) said second noise signals using said conductive paths of said noise pickup lead; and
(c) monitoring the condition of the patient through use of said bioelectric signals received by said separate device.
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51. A magnetic resonance (MR) system comprising:
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(a) a means for controlling gradient and radio frequency (RF) coils to apply changing magnetic fields and RF signals to a patient to induce and encode magnetic resonance within selected nuclei therein;
(b) a means for receiving magnetic resonance signals from the selected nuclei in response thereto and processing the magnetic resonance signals into diagnostic information;
(c) a plurality of electrodes removably attachable to the patient, each of said electrodes for picking up a bioelectric signal indicative of a condition of the patient; and
(d) a lead set assembly for conveying said bioelectric signals from said electrodes to a separate device, said lead set assembly comprising;
(I) a condition sense lead having a pair of conductive paths, each of said conductive paths being connectible to one of said electrodes for conveying a bioelectric signal therefrom and susceptible to having a first noise signal induced therein by electromagnetic emanations; and
(II) a noise pickup lead having a pair of conductive paths each of which being effectively topographically aligned with a corresponding one of said conductive paths of said condition sense lead to form a noise-matched pair therewith and susceptible to having a second noise signal induced therein by the electromagnetic emanations, thereby enabling said second noise signal to be substantially approximate to said first noise signal in each of said noise-matched pairs, said lead set assembly thus for conveying from said electrodes to said separate device (I) said bioelectric signals and said first noise signals using said conductive paths of said condition sense lead and (II) said second noise signals using said conductive paths of said noise pickup lead.
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Specification