Clip-type electrode for electrocardiographs

Abstract

Abstract A clip-type electrode includes a pair of clamping plates (12, 13) for being opened and closed relative to each other about a common shaft (11) and having concave surfaces (16, 17) facing each other, an electrode member (19) mounted on one of the clamping plates (12), and a spring (18) coiled around the common shaft (11) for biasing the ends of the clamping plates (12,13) remote from the common shaft (11) towards each other. One of the clamping plates (12) is longer than the other. The electrode member (19) includes a strip of resilient, electrically conductive material bent into a U-shaped cross-section thus providing a pressuring plate section (20) for applying pressure to the limb of a patient, and a pair of engagement plates (21, 22) each upstanding from opposing edges of the pressuring plate section (20) and having plural inwardly projecting bosses (26, 27, 35, 36). The engagement plates (21, 22) clamp the longitudinal edges of the longer one (12) of the clamping plates (12, 13) for attaching the electrode member (19) to the clamping plate (12). The pressuring plate section (20) is brought into intimate contact with the surface of the skin of the patient's limb to uniformalize the contact resistance and eliminate noise or distortion in the output waveform, thereby making possible accurate diagnosis of the condition of the heart. Since one of the pair of the clamping plates (12) is longer than the other (13), the electrodes is unlikely to be detached by movement of the limb.

Inventors

• 👤 Kimio Yamaguchi
• 👤 Yoshinori Chiba

Bibliographic Details