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ULTRASONIC VEIN DETECTOR AND RELATING METHOD

  • US 20050049504A1
  • Filed: 03/01/2004
  • Published: 03/03/2005
  • Est. Priority Date: 08/27/2003
  • Status: Abandoned Application
First Claim
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1. An ultrasonic vein detector for detecting the position of a vein in a specific part of an examinee comprising:

  • an ultrasonic emitter having an oscillator for generating indicative pulse ultrasonic signals toward the examinee;

    a pulse presser for applying pulse stress signals to the part of the examine, wherein the frequency of the signal is different from the heartbeat frequency of the examinee;

    an ultrasonic sensor for sensing the back waves which is the reflection of the indicative pulse ultrasonic signals hitting every reflecting point of the part of the examinee, and converting them into electrical signals; and

    a microprocessor for receiving the electrical signals from the ultrasonic sensor and calculating the Doppler shift of the electrical signals generated from the back waves in order to find the reflecting points corresponding to the pulse stress signals.

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