High pressure sensor for use with a fluid delivery system
First Claim
1. A hemodynamic pressure sensor for use with a fluid delivery system, the hemodynamic pressure sensor comprising:
- a fluid path defined by a tubing element; and
a pressure transducer configured to be in continuous fluid communication with a fluid in the tubing element during pressurized delivery of the fluid and adapted to measure a fluid pressure in the tubing element, the pressure transducer comprising a deformable element configured to deform in response to changes in the fluid pressure in the tubing element,wherein the pressure transducer converts to an electronic signal a representation of an amount of deformation of the deformable element to measure the changes in the fluid pressure in the tubing element, andwherein the deformable element of the pressure transducer is configured such that it remains in working condition after being exposed to pressure in excess of about 60,000 mm Hg.
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Accused Products
Abstract
A pressure sensor for use with a fluid delivery system having good sensitivity at low pressure, but also configured to remain in operating condition after being exposed to high pressures is disclosed herein. In one variation, the pressure sensor includes a fluid path set, a deformable element associated with the fluid path set and configured to deform in response to an external pressure, and a pressure transducer for monitoring deformation of the deformable element. In certain embodiments, the pressure sensor is configured to measure fluid pressure within the range of between about 0 mm Hg to about 300 mm Hg. However, the sensor pressure is also be configured to remain functional after being exposed to pressure in excess of about 60,000 mm Hg.
48 Citations
30 Claims
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1. A hemodynamic pressure sensor for use with a fluid delivery system, the hemodynamic pressure sensor comprising:
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a fluid path defined by a tubing element; and a pressure transducer configured to be in continuous fluid communication with a fluid in the tubing element during pressurized delivery of the fluid and adapted to measure a fluid pressure in the tubing element, the pressure transducer comprising a deformable element configured to deform in response to changes in the fluid pressure in the tubing element, wherein the pressure transducer converts to an electronic signal a representation of an amount of deformation of the deformable element to measure the changes in the fluid pressure in the tubing element, and wherein the deformable element of the pressure transducer is configured such that it remains in working condition after being exposed to pressure in excess of about 60,000 mm Hg. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 20, 30)
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13. A fluid delivery system comprising:
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a first fluid delivery device for delivering a first injection fluid under pressure to a fluid path defined by a tubing element; a second fluid delivery device for delivering a second injection fluid under pressure to the tubing element; and a pressure transducer configured to be in continuous fluid communication with a fluid in the tubing element during pressurized delivery of the fluid and adapted to measure a fluid pressure in the tubing element, the pressure transducer comprising a deformable element configured to deform in response to changes in the fluid pressure in the tubing element, wherein the pressure transducer converts to an electronic signal a representation of an amount of deformation of the deformable element to measure the changes in the fluid pressure in the tubing element, and wherein the deformable element of the pressure transducer is configured such that it remains in working condition after being exposed to pressure in excess of about 60,000 mm Hg. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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21. A fluid delivery system, comprising:
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a power injector adapted to interface with and actuate at least one syringe; a fluid path set connected to the at least one syringe and comprising a tubing element; and a pressure transducer configured to be in continuous fluid communication with a fluid in the tubing element during pressurized delivery of the fluid and adapted to measure a fluid pressure in the tubing element, the pressure transducer comprising a deformable element configured to deform in response to changes in the fluid pressure in the tubing element; wherein the pressure transducer converts to an electronic signal a representation of an amount of deformation of the deformable element to measure the changes in the fluid pressure in the tubing element; and wherein the deformable element of the pressure transducer is configured such that it remains in working condition after being exposed to pressure in excess of about 60,000 mm Hg. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification