Diagnostic sampling device and system for analyzing body fluids
First Claim
1. A diagnostic sampling device for analyzing body fluids comprisinga housing defining a test chamber therein in communication with a fluid inlet and a gas outlet;
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said fluid inlet having a configuration to mate in sealing relation with a source of body fluids and said gas outlet having a configuration to permit gas flow while preventing passage of body fluids so that the diagnostic sampling device is essentially sealed during testing to prevent leakage of body fluids from the device.
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Accused Products
Abstract
A diagnostic sampling device and system for analyzing body fluids includes a transparent housing defining a test chamber therein in communication with a fluid inlet and a gas outlet, a test strip disposed in the test chamber and having an indicating portion reactive to a condition of the body fluids, and a ruler positionable outside the housing adjacent the test chamber for comparison with indicating portions of the test strip. A plug disposed in the gas outlet of the housing permits gas flow while preventing passage of body fluids, and is preferably formed of a porous material having a capacity to seal the gas outlet when contacted by body fluids. An absorbent filter is also disposed in the housing between the fluid inlet and the test chamber. The fluid inlet can be configured to couple with the proximal end of an enteral feeding tube, in which case the gas outlet is preferably configured to couple with a syringe so that the housing can be filled in-line with aspirated body fluids drawn from the enteral feeding tube by creating suction with the syringe. Alternatively, the fluid inlet can be configured to couple with a syringe such that body fluids can be aspirated from the enteral feeding tube directly using the syringe and expelled into the housing off-line via the fluid inlet.
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Citations
19 Claims
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1. A diagnostic sampling device for analyzing body fluids comprising
a housing defining a test chamber therein in communication with a fluid inlet and a gas outlet; - and
a test strip disposed in said test chamber, said test strip being visible through said test chamber and having a plurality of indicating portions visibly reactive to pH of the body fluids; said fluid inlet having a configuration to mate in sealing relation with a source of body fluids and said gas outlet having a configuration to permit gas flow while preventing passage of body fluids so that the diagnostic sampling device is essentially sealed during testing to prevent leakage of body fluids from the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
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9. A diagnostic system for analyzing body fluids comprising
a sampling device including a housing defining a test chamber therein in communication with a fluid inlet and a gas outlet and a test strip disposed in said test chamber, said test strip being visible through said test chamber and having an indicating portion reactive to a characteristic of the body fluids, said fluid inlet having a configuration to mate in sealing relation with a source of body fluids and said gas outlet having a configuration to permit gas flow while preventing passage of body fluids so that the diagnostic sampling device is essentially sealed during testing to prevent leakage of body fluids from the device; - and
a ruler with at least one reference pattern formed thereon for comparison with the indicating portion of the test strip to determine the characteristic of body fluids contacting said test strip, said ruler being positionable outside said sampling device adjacent said test chamber to permit visual comparison of the indicating portion of the test strip and the reference pattern of the ruler without contaminating the body fluids or exposing medical personnel to infectious diseases. - View Dependent Claims (10, 11, 12, 13, 14, 16, 17)
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18. A diagnostic sampling device for analyzing body fluids comprising
a housing defining a test chamber therein in communication with a fluid inlet configured to mate sealingly with the dispensing tip of a syringe and a gas outlet; -
a plug disposed in said gas outlet and having a configuration to permit gases to vent while preventing passage of body fluids; said gas outlet including means engaging said plug to prevent expulsion of said plug as body fluids are injected into said fluid inlet from the syringe; and a test strip disposed in said test chamber, said test strip being visible through said test chamber and having an indicating portion visibly reactive to pH of the body fluids.
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19. A diagnostic sampling device for analyzing feeding tube aspirates comprising
a housing defining a test chamber therein in communication with a fluid inlet configured to mate sealingly with an access port at the proximal end of an enteral feeding tube and a gas outlet configured to mate sealingly with a dispensing tip of a syringe; -
a plug disposed in said gas outlet and having a configuration to permit gases to flow into the syringe from said housing so that a suction force can be created with the syringe to draw body fluids into said housing from the enteral feeding tube while preventing passage of the body fluids into the syringe through the plug; and a test strip disposed in said test chamber, said test strip being visible through said test chamber and having an indicating portion reactive to pH of the body fluids.
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Specification