OPTICAL PRESSURE SENSOR BUILT IN ANGIOPLASTY GUIDEWIRE

内置于血管成形术导丝中的光学压力传感器

• 批准号: 2790960
• 负责人: TAKEO SAWATARI
• 金额: $ 9.99万
• 依托单位: SENTEC CORPORATION
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-20 至 1999-11-19
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2790960
• 关键词: biomedical equipment development; biosensor device; blood pressure; consumable /disposable biomedical equipment; diagnostic catheterization; fiber optics; intraluminal angioplasty; microprocessor /microchip; miniature biomedical equipment

The development of an ultra-miniature optical pressure sensor is proposed for NHLBI's research topics 1. Heart and Vascular Diseases, Biosensors. The sensor is smaller than any of the available pressure transducers, so it can be inserted into blood vessels (arteries, veins, or heart chamber) with an angioplasty guidewire which has a diameter of only 0.4 mm. The sensor can measure blood pressures in the range of O to 300 mmHg with both diastolic and systolic blood pressures. The sensor will operate over time periods of up to a few days without periodical re-calibration. Its pressure readings will be independent of temperature changes in the range of 30 to 50 degrees Celsius. In addition to its functional properties, the sensor has to be disposable and therefore be available at a reasonable cost for clinical use The primary commercial application of this device will be for angioplasty treatment. Because of its small size, the sensor can be used for infants. It can also be used to monitor fluid pressures in the human brain after surgery. The Phase I effort demonstrated the feasibility of the proposed approach. Prototype development will be carried out in Phase II. PROPOSED COMMERCIAL APPLICATION: The device can be used at major hospitals and clinics as an accurate blood pressure measuring device by being inserted into blood vessels (arteries, veins, or heart chamber) with an angioplasty guidewire. Because of its small size, the sensor can also be used to monitor critically ill infants and small children.

研制了一种超小型光学压力传感器