Measurement head for non-invasive blood analysis
First Claim
1. A measurement head for a spectroscopic system comprising:
- fixing means for fixing the measurement head to an area of the surface of the skin of a patient, wherein the fixing means are configured to remain fixed to the area of the surface of the skin;
an objective for imaging of a target area located below the surface of the skin, for directing an excitation beam to the target area, and for collecting return radiation from the target area; and
lateral moving means for moving the fixing means in a plane substantially perpendicular to an optical axis of the objective.
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Accused Products
Abstract
A measurement head has an objective for imaging of a target area such as including a capillary vessel in the skin. The measurement head does not require a lateral shifting of the optical axis of the objective. Transverse relative movements between the objective and a capillary vessel in the skin are performed by mechanically shifting the skin with respect to the objective of the measurement head. Moreover, the measurement head is adapted to host one or more pressure sensors for measuring the contact pressure between the measurement head and the skin. Pressure information may be exploited in order to calibrate a spectroscopic analyzer, and/or to regulate the contact pressure within predefined margins specifying an optimum range of contact pressure for spectroscopic examination of capillary vessels.
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Citations
18 Claims
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1. A measurement head for a spectroscopic system comprising:
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fixing means for fixing the measurement head to an area of the surface of the skin of a patient, wherein the fixing means are configured to remain fixed to the area of the surface of the skin; an objective for imaging of a target area located below the surface of the skin, for directing an excitation beam to the target area, and for collecting return radiation from the target area; and lateral moving means for moving the fixing means in a plane substantially perpendicular to an optical axis of the objective. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for positioning of a measurement head of a spectroscopic system with respect to a target area located below a surface of a skin, the method of positioning comprising the acts of:
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applying a fixing device of the measurement head to an area of the surface of the skin, moving the fixing device in a plane substantially perpendicular to an optical axis of an objective of the measurement head, and relative thereto, for imaging of the target area so that the area of the surface of the skin fixed to the fixing device is moved to the target area until the optical axis of the objective is located over the target area.
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Specification