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US 5,275,787 AGranted
Apparatus for separating or measuring particles to be examined in a sample fluid
AssigneeCanon Kabushiki Kaisha
InventorsNaoki Yuguchi, Yoshito Yoneyama, Junichi Yamayoshi
Life of this patent
Estimating the term…
Abstract
A particle-separating apparatus discharges a liquid drop by providing discharging energy within a receptacle for receiving a particle-suspending fluid. Thermal energy can be used to generate a bubble and discharge a liquid drop containing an individual particle to be examined from an opening in the receptacle.
Claims6
A sample inspection system, comprising:
- receptacle means for containing only sample fluid with suspended particles, said receptacle means having an opening;
- a thermal energy generation source disposed within said receptacle means for providing the sample fluid in said receptacle means with a pulse energy to discharge a droplet of the sample fluid from the opening, each droplet containing a particle;
- a detector for detecting the particle;
- and
- a synchronizing circuit for synchronizing the discharge by said energy generator and the detection by said detector.
2 more elements
A sample inspection system, comprising:
- receptacle means for receiving only a sample fluid with suspended particles, said receptacle means having an opening;
- a thermal energy generation source disposed within said receptacle means for providing the sample fluid in said receptacle means with a pulse energy to discharge a droplet of the sample fluid from the opening, each droplet containing a particle;
- a transparent plate facing the opening, the sample fluid discharged from the opening being received on said transparent plate;
- and
- a detector for detecting the particle on said transparent plate.
2 more elements
A sample inspection system, comprising:
- receptacle means for receiving only sample fluid with suspended particles, said receptacle means having an opening;
- a thermal energy generation source disposed within said receptacle means for providing the sample fluid in said receptacle means with a pulse energy to discharge a droplet of the sample fluid from the opening, each droplet containing one particle;
- a detector for detecting the particle;
- a data storage memory for storing data detected by said detector;
- and
- a signal processor for analyzing the data stored in said data storage memory.
3 more elements
Dependencies are inferred from the claim text.