Resources Contact Us Home
Method and apparatus for noninvasive determination of peripheral arterial lumenal area

Image Number 11 for United States Patent #6309359.

An occlusive cuff is placed around a limb (e.g. an arm) of a patient. A fluid, such as air, is pumped into the cuff, and the pressure in the cuff is measured. The pressure variation in the cuff with respect to time is caused by the pump and expansion/contraction of the arm caused by blood being pumped therethrough by the patient's heart. This variation in pressure is used to calculate systolic and diastolic pressure, artery lumen area compliance and artery volume compliance, artery lumen area, and the blood flow rate through the patient's arteries (e.g. the brachial artery for the case of the patient's arm, or the femoral artery or the case of the patient's leg).

  Recently Added Patents
Differential ring oscillator and method for calibrating the differential ring oscillator
Fusing device to prevent overheating of a heating member and image forming apparatus having the same
Systems and methods for automated institutional processing of payments
Writing implement
Control device with adjusting pulse width modulation function and the backlight module thereof
Automotive lighting system
Fire detector
  Randomly Featured Patents
Image processing method and image processing device
Debugging techniques in a multithreaded environment
System and method for providing computer support tools
Process for beneficiating ores containing fine particles
Method for fabricating synthetic-material molded parts through blow molding
Fluronaphthalene chromium tricarbonyls useful as hydrogenation catalysts for polyunsaturated fatty acid residue-containing compositions
Optical viewing, photographic device for vapor generator
Multichannel evaporator with flow mixing multichannel tubes
Bicyclic pyridine and pyrimidine p38 kinase inhibitors
Seal tool for film-sealing machine