Electrode sets with resiliently mounted pin electrodes
First Claim
1. An electrode for an electrocardiograph used for measuring potentials of a number of points of a body surface near the heart and producing an isopotential map thereof, said electrode comprising:
- a plurality of pin contact sets each being conductive at least on its surface and each having a plurality of movably mounted parallel pin contacts for movement reciprocally in the direction of their lengths for directly contacting the human body surface; and
resilient members, one connected to each pin contact for resiliently urging the end of each pin contact in the direction of its length toward the human body surface;
the pin contacts of each set being mounted in a small area close to one another on said electrode and being mutually electrically connected in parallel, the space between the pin contacts of each pin contact set being much smaller than the space between the adjacent small areas of the pin contact sets, whereby the potential at a position on the body surface contacted by a pin contact set can be detected as long as one pin electrode in the set is in good contact with the body, even if the other pin contacts in the set are in bad contact.
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Accused Products
Abstract
An electrode for an electrocardiograph in which potentials of the human body surface near the heart are detected by electrodes, and signals from the electrodes are processed through a computer to make an isopotential map of the body. The electrodes each have a plurality of sets of pin contacts and each set includes a plurality of pin contacts. The space between pin contacts of a set is much smaller than the space between pin contact sets. Each pin contact is pushed toward the body surface separately by means of a resilient member. The pin contacts of a set are mutually electrically connected in parallel. The potential of the body surface can be accurately detected as long as one pin contact of a set is in good contact, even if the other contacts are in bad contact.
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Citations
7 Claims
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1. An electrode for an electrocardiograph used for measuring potentials of a number of points of a body surface near the heart and producing an isopotential map thereof, said electrode comprising:
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a plurality of pin contact sets each being conductive at least on its surface and each having a plurality of movably mounted parallel pin contacts for movement reciprocally in the direction of their lengths for directly contacting the human body surface; and resilient members, one connected to each pin contact for resiliently urging the end of each pin contact in the direction of its length toward the human body surface; the pin contacts of each set being mounted in a small area close to one another on said electrode and being mutually electrically connected in parallel, the space between the pin contacts of each pin contact set being much smaller than the space between the adjacent small areas of the pin contact sets, whereby the potential at a position on the body surface contacted by a pin contact set can be detected as long as one pin electrode in the set is in good contact with the body, even if the other pin contacts in the set are in bad contact. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification
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- Resources
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Current AssigneeEucalyptus Co., Ltd.
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Original AssigneeNorio Akamatsu, Yasuhiro Toyosu
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InventorsAkamatsu, Norio, Toyosu, Yasuhiro
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Primary Examiner(s)Kamm, William E.
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Application NumberUS06/405,955Time in Patent Office1,027 DaysField of Search128/639, 128/644, 128/695, 128/696, 128/710, 128/712, 128/902US Class Current600/386CPC Class CodesA61B 5/282 Holders for multiple electr...A61B 5/341 Vectorcardiography [VCG]
