[Method and apparatus for blood flow detection based on detention catheter]

Area of Science:

• Biomedical Engineering
• Fluid Dynamics
• Medical Devices

Context:

• Current blood flow measurement techniques like dilution, electromagnetism, and nuclear magnetic resonance have limitations including real-time display issues, high costs, and surgical requirements.
• Ultrasound Doppler, while useful, cannot synchronously record other hemodynamic parameters.
• There is a need for a cost-effective, reliable method for real-time blood flow measurement in hemodynamic research.

Purpose:

• To develop and present a novel, low-cost, and dependable method for measuring blood flow.
• To address the limitations of existing blood flow measurement technologies.
• To provide a tool capable of recording dynamic blood flow parameters for hemodynamic studies.

Summary:

• The proposed method utilizes the differential pressure generated by fluid flow through a tube, which is proportional to the square of the velocity.
• A double-chambered catheter is employed to simultaneously measure blood pressure, facilitate drug transfer, and detect the differential pressure indicative of blood flow.
• Clinical results demonstrate the method's ability to record dynamic blood flow diagrams, validating its utility for hemodynamic assessments.

Impact:

• This new method offers a simple, reliable, and affordable solution for blood flow measurement.
• It enhances the capabilities of hemodynamic studies by providing real-time dynamic flow data.
• The technique has potential applications in clinical settings for monitoring cerebral blood flow (CBF) and other hemodynamic parameters.