Probe for dielectric and optical diagnosis

• US 20040073081A1
• Filed: 08/27/2003
• Published: 04/15/2004
• Est. Priority Date: 02/27/2001
• Status: Abandoned Application

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: Schramm, Werner
• Application Number:
  US10/469,337
• Publication Number:
  US 20040073081A1
• Time in Patent Office: Days
• US Class Current: 600/101
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/6848 Needles

Abstract

An endoscopic measuring probe for medical diagnosis providing an array by means of which both dielectric and optical parameters can be detected at a given site of the tissue during measurement. The measuring probe is formed by a coaxial array of metal outer sheaths and a metal inner conductor, wherein the dielectric consists of light conducting fibers.

Claims

1. An endoscopic measuring probe for multi parameter diagnostics of biological tissue, characterized by the fact that a cylindrical measuring head (2) structured as a coaxial wave conductor for contacting the tissue (1) to be examined, is provided with a metallic external sheath (21) and a coaxial internal conductor (22), the space between the two being filled by a dielectric substance of light conducting fibers (23) which as groups or individually transmit light of predetermined wavelength from signal sources to the tissue or away from them to optical receivers, the measuring head at its distal end terminating in a shaft (3) with a coupling module (4) which, consisting of a connector (41) with a female connector portion (42), constitutes a separable interface to the operating apparatus (5).

2. The endoscopic measuring probe of claim 1, characterized by the fact that the light conducting fibers as a dielectric substance are uniformly distributed over the cross-section.

3. The endoscopic measuring probe of claim 1 and 2, characterized by the fact that its proximal end is structured as a point (201) for penetration into the tissue (1).

4. The endoscopic measuring probe of claim 1 and 2, characterized by the fact that its proximal end is provided with a planar front surface (202).