Catheter-mounted Device for Measuring Intravascular Flow and Pressure

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 2R44HL092691-02
Agency Tracking Number: R44HL095195
Amount: $1,069,070.00
Phase: Phase II
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: NHLBI
Solicitation Number: PA10-050
Small Business Information
31 AIRPARK RD, Princeton, NJ, -
DUNS: 139114487
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 (609) 924-3590
Business Contact
Phone: (609) 651-4824
Research Institution
DESCRIPTION (provided by applicant): Minimally invasive treatments using catheters to correct a serious cardiovascular problem has revolutionized cardiovascular care. Almost a million such procedures take place each year in the United States. These procedures are guided by X-ray visualization of the vessels, angiography. After several decades of research, it has been established that adding functional measurements, i.e. measures of blood pressure and flow, to guidance by angiography significantly improves patients' outcomes and reduces costs. However, most procedures today still use only angiography; currently, functional measurement requires expensive specialized devices and equipment and certain specialized skills. DVX has invented a new kind of blood flowmeasuring Doppler ultrasound sensor that is inexpensive and can be mounted directly on a catheter. In the Phase I proof-of-concept portion of the research program, this sensor, mounted on a dummy catheter, was shown to work well in animal trials. DVX alsodetermined how a tiny chip pressure sensor could be mounted alongside of the flow sensor so that full functional measurement of blood pressure and flow could be accomplished by a device mounted on a catheter. Bench tests proved the device's high accuracywas not affected by the angle of the catheter to the blood flow, in contrast to previous Doppler ultrasound devices that suffered from orientation sensitivity. In the proposed Phase II, the pressure and flow sensors will be integrated onto procedural catheters, such as for balloon angioplasty or stent placement, and the safety and usefulness of the device in guiding procedures demonstrated in animal studies. It is the goal of Phase II to advance the development of the catheter-mounted device to where clinical trials on humans will be appropriate and desirable. These studies should lead to widespread application of functional measurement in catheter-based procedures, improving patient outcome and reducing costs for millions of patients per year. PUBLICHEALTH RELEVANCE: The goal of this program is to improve the performance of catheter-based procedures in the circulatory system. By adding an innovative ultrasound device to catheters, the catheters will provide more accurate treatment, leading to betterpatient care at reduced cost.

* Information listed above is at the time of submission. *

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