Disposable sensing device for real time fluid analysis
First Claim
1. A disposable sensing device, adapted for insertion into reading apparatus, for sensing at least one component concentration in a fluid sample, comprising:
- a housing;
at least one sensor located in a sensor region within the housing;
sample retaining means within the housing, for retaining the sample out of contact with the sensor, prior to sensing;
sample collection means within the housing including an orifice for drawing the sample into the sample retaining means;
a sample conduit connecting the sample retaining means with the sensor; and
sample displacement means for automatically displacing the sample by actively forcing the sample through the sample conduit and into contact with the sensor to permit sensing, the automatic displacement of the sample being under the control of the reading apparatus.
2 Assignments
0 Petitions
Accused Products
Abstract
A system comprising a disposable device and hand held reader can perform a variety of electrochemical measurements on blood or other fluids. In operation, a fluid sample is drawn into the disposable device through an orifice by capillary action. The orifice is sealed off and the disposable device is inserted into the reader. The reader which controls the test sequence and flow of fluid causes a calibrant pouch located inside the device to be pierced, releasing the calibrant fluid to flow across the sensor arrays to perform calibration. Next an air bladder located in the device is depressed, forcing the sample across the sensors where measurements are performed and read by the reader which performs the calibrations. Once the measurements are made, the device can be withdrawn from the reader and discarded.
-
Citations
33 Claims
-
1. A disposable sensing device, adapted for insertion into reading apparatus, for sensing at least one component concentration in a fluid sample, comprising:
-
a housing; at least one sensor located in a sensor region within the housing; sample retaining means within the housing, for retaining the sample out of contact with the sensor, prior to sensing; sample collection means within the housing including an orifice for drawing the sample into the sample retaining means; a sample conduit connecting the sample retaining means with the sensor; and sample displacement means for automatically displacing the sample by actively forcing the sample through the sample conduit and into contact with the sensor to permit sensing, the automatic displacement of the sample being under the control of the reading apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A disposable sensing device, adapted for insertion into reading apparatus, for sensing at least one component concentration in a fluid sample, comprising:
-
a housing; at least one sensor located within the housing; a cavity within the housing including a sealed deformable pouch for retaining an aqueous reagent out of contact with the sensor; an aqueous reagent conduit for connecting the cavity to the sensor; aqueous reagent displacement means under control of the reading apparatus for displacing the aqueous reagent from the cavity through the aqueous reagent conduit to the sensor; sample retaining means within the housing, for retaining the sample out of contact with the sensor, prior to sensing; sample collection means within the housing including an orifice for drawing the sample into the sample retaining means; a sample conduit connecting the sample retaining means with the sensor; and sample displacement means for forcibly displacing the sample from said sample retaining means through the sample conduit and into contact with the sensor to permit sensing. - View Dependent Claims (26, 27, 28)
-
-
29. A system for sensing at least one component concentration in a fluid sample, comprising reading apparatus and a disposable sensing device, the disposable sensing device including:
-
at least one sensor; sample retaining means for retaining the fluid sample out of contact with the sensor prior to sensing; sensor collection means including an orifice for drawing the sample into the sample retaining means; a sample conduit connecting the sample retaining means with the sensor; and sample displacement means for automatically and forcibly displacing the sample through the sample conduit and into contact with the sensor to permit sensing; the reading apparatus including; receiving means for receiving the disposable sensing device; control means for controlling the automatic displacement of the sample by the sample displacement means; and signal means for receiving information from the sensor. - View Dependent Claims (30, 31, 32, 33)
-
Specification