Heartbeat measuring device

• US 20060122519A1
• Filed: 11/29/2005
• Published: 06/08/2006
• Est. Priority Date: 12/08/2004
• Status: Abandoned Application

• Current Assignee: Seiko Instruments Incorporated (Seiko Group)
• Original Assignee: Seiko Instruments Incorporated (Seiko Group)
• Inventors: Nakamura, Hisao
• Application Number:
  US11/288,732
• Publication Number:
  US 20060122519A1
• Time in Patent Office: Days
• US Class Current: 600/502
• CPC Class Codes: A61B 2560/04 Constructional details of apparatus
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient

Abstract

To make it possible to simply and certainly perform a check of a waterproofness of a heartbeat measuring device not only before a product shipment but also at the time when a user uses it. In a heartbeat measuring device having a case and a case back which are made of a opaque hard plastic, a circuit board accommodated in an accommodation chamber formed by the case and the case back, various electronic parts attached to the circuit board, and an antenna, a through-hole is provided in a center part of the opaque case, and a transparent member is liquid-tightly fixed to an outside opening part of the through-hole, thereby making it possible to check the waterproofness of the heartbeat measuring device by observing a dew condensation generated on an inner face of the transparent member.

Claims

1. A heartbeat measuring device comprising:

an opaque waterproof case to accommodate a heartbeat measuring circuit, which is mounted to a user'"'"'s chest when used;

wherein a through part is provided in one part of the opaque case, and a transparent member is liquid-tightly fixed to the through part, thereby enabling observing a dew condensation generated on an inner face of the transparent member.

2. A heartbeat-measuring device according to claim 1, wherein the transparent member is liquid-tightly fixed to an outside opening part of the through part.

3. A heartbeat measuring device according to claim 2, further comprising:

a shielding plate which is disposed in an inside opening part of the through part with forming an interstice through which air can move between a lower face of the transparent member.

4. A heartbeat measuring device according to claim 1, further comprising:

a humidity display member which is attached to an inner face of the transparent member.

5. A heartbeat measuring device according to claim 4, wherein the humidity display material is a reversible humidity display material.