Apparatus for monitoring bloodstream
First Claim
1. An apparatus for monitoring a bloodstream, comprising light projecting means for projecting a laser light upon an object having a bloodstream, comprising a laser light source for emitting a coherent laser beam and an optical system for projecting the coherent laser beam onto a surface of said object at a plurality of points which are arranged at least linearly;
- light receiving means, comprising a plurality of light receiving elements arranged at least two-dimensionally to receive a plurality of laser beams scattered by blood cells at said plurality of points on said surface;
memory means for storing output signals read out of the light receiving elements;
calculating means for calculating from the output signals stored in said memory means to derive information about said bloodstream; and
display means for displaying said information.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for monitoring a bloodstream in a skin surface including a laser light source for emitting a laser beam, a cylindrical lens for expanding the laser beam, an objective lens for collecting light rays reflected by the skin surface and scattered by blood cells, a linear image sensor for receiving the reflected light rays via an objective lens, A/D converter for converting output signals read out of light receiving elements of the linear image sensor into digital signals, a memory for storing the digital signals, a calculating circuit for calculating a bloodstream velocity or a distribution of bloodstream, and a display device for displaying the bloodstream velocity or the distribution of bloodstream.
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Citations
11 Claims
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1. An apparatus for monitoring a bloodstream, comprising light projecting means for projecting a laser light upon an object having a bloodstream, comprising a laser light source for emitting a coherent laser beam and an optical system for projecting the coherent laser beam onto a surface of said object at a plurality of points which are arranged at least linearly;
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light receiving means, comprising a plurality of light receiving elements arranged at least two-dimensionally to receive a plurality of laser beams scattered by blood cells at said plurality of points on said surface; memory means for storing output signals read out of the light receiving elements; calculating means for calculating from the output signals stored in said memory means to derive information about said bloodstream; and display means for displaying said information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification