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
Discovery, analysis, and visualization of dependencies
Method and system for selecting a target with respect to a behavior in a population of communicating entities
Audio/video program-related hyperlink printer
Method and system for electronic distribution of product redemption coupons
Apparatus and method for storing event information for an HVAC system
Toner cartridge and image forming apparatus including the same
Antibody recognizing turn structure in amyloid .beta.
  Randomly Featured Patents
Method for the preparation of metal matrix fiber composites
Assessment and modification of a subject's endogenous circadian cycle
Display device
Passive stretching device for plantar fascia
Wine case
Isotropic negative thermal expansion cermics and process for making
Method for the diagnosis and prognosis of malignant diseases
Dynamically reconfigurable framework for a large-scale battery system
Ionization fire detector
Latch dead-bolting means