Telemetric transmitter unit

• US 5,464,021 A
• Filed: 10/14/1994
• Issued: 11/07/1995
• Est. Priority Date: 10/14/1994
• Status: Expired due to Term

• Current Assignee: Polar Electro Oy
• Original Assignee: Polar Electro Oy
• Inventors: Birnbaum, Burton H.
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US08/323,224
• Time in Patent Office: 389 Days
• Field of Search: 128/639, 128/644, 128/690, 128/696, 128/903
• US Class Current: 600/509
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/411 Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: Y10S 128/903 Radio telemetry

Abstract

The invention relates to a telemetric transmitter unit comprising electrodes for placement against the body of a person wearing the telemetric transmitter unit for detecting heartbeat signals of said person. The plastic members joining the transmitter and electrodes together so as to form an integrated casing for the transmitter unit has a bottom side exposing the surface of the electrodes, whereby the electrodes are provided with holes, each hole being associated to a fluid channel leading to an opening in the casing. A fluid applied to an opening in the casing flows through the hole in the electrode, thus wetting, at least in the part of the body lying underneath the electrode, any cloth or garment on the wearer as well as the skin, in order to provide a conductive path for the heart beat signals between the skin of the wearer and the electrode through said cloth or garment.

Claims

1. A telemetric transmitter unit comprising:

at least one electrode for placement against a part of the body of a person wearing said telemetric transmitter unit for detecting heartbeat signals from said person;

an electronic circuit electrically connected to said at least one electrodes to receive signals from the electrodes, and for processing said received signals electronically in order to generate a variable magnetic proximity field for telemetric transmission of the detected heartbeat signals of said person to a separate receiver;

one or more plastic members joining the transmitter and electrodes together so as to form an integrated casing for the transmitter unit having a bottom side exposing the surface of the said at least one electrodes, wherein at least one of the electrodes is provided with at least one hole, each hole being associated to at least one fluid channel leading to at least one opening in said casing, whereby fluid applied to said at least one opening in the casing is allowed to flow through said hole in the electrode, thus wetting, at least in the part of the body lying underneath the electrode, any cloth or garment on the wearer as well as the skin, in order to provide a conductive path for the heart beat signals between the skin of the wearer and the electrode through said cloth or garment.

2. A telemetric transmitter unit according to claim 1, wherein said electrodes are made of an electrically conductive plastic material.

3. A telemetric transmitter unit according to claim 1, wherein said electrodes are made of an electrically conductive metal.

4. A telemetric transmitter unit according to claim 1, wherein said electrodes are made of an electrically conductive elastomeric material.