Devices, systems and methods for evaluation of hemostasis
First Claim
Patent Images
1. A device comprising:
- a housing;
a plurality of test chambers, wherein the plurality of test chambers includes at least a first test chamber and a second test chamber that are each at least partially defined by the housing, wherein the first test chamber and the second test chamber are each designed to be interrogated to determine a hemostatic parameter of a test sample of blood that is received therein and a reagent or combination of reagents, wherein a first reagent or combination of reagents in the first test chamber is different than a second reagent or combination of reagents in the second test chamber; and
a fluid pathway comprising a plurality of channels, each defined at least in part by the housing, wherein the fluid pathway includes an inlet, defined at least in part by the housing, through which the test sample is introduced into the device, wherein at least one channel of the plurality of channels is in communication with the inlet and with the first test chamber and the second test chamber to deliver a portion of the test sample to each of the first test chamber and the second test chamber, and wherein the fluid pathway includes a first port, defined at least in part by the housing, in communication with a channel of the fluid pathway and from which a pressure gradient when applied from a source external to the first port draws the test sample through the at least one channel of the fluid pathway and into at least one of the test chambers, wherein the at least one channel of the fluid pathway includes an inlet channel, a first channel, and a second channel, wherein the inlet channel is in communication with the inlet, wherein the first channel is in communication with the inlet channel and at least with the first test chamber, and wherein the second channel is in communication with the inlet channel and at least with the second test chamber,wherein the housing includes a thermally conductive wall configured to allow the test sample to be heated, the thermally conductive wall having an outer surface area and an inner surface area;
wherein the fluid pathway includes a portion at least partially defined by the inner surface area of the thermally conductive wall and the outer surface area of the thermally conductive wall is shaped to be held in at least partially conforming contact with or in close proximity to a heater to allow adjustment of a temperature of the test sample flowing through the portion at least partially defined by the inner surface area of the thermally conductive wall; and
wherein the device can be used with an interrogation device to measure at least one viscoelastic property of the test sample.
2 Assignments
1 Petition
Accused Products
Abstract
Provided are devices, systems and methods for evaluation of hemostasis. Also provided are sound focusing assemblies.
185 Citations
77 Claims
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1. A device comprising:
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a housing; a plurality of test chambers, wherein the plurality of test chambers includes at least a first test chamber and a second test chamber that are each at least partially defined by the housing, wherein the first test chamber and the second test chamber are each designed to be interrogated to determine a hemostatic parameter of a test sample of blood that is received therein and a reagent or combination of reagents, wherein a first reagent or combination of reagents in the first test chamber is different than a second reagent or combination of reagents in the second test chamber; and a fluid pathway comprising a plurality of channels, each defined at least in part by the housing, wherein the fluid pathway includes an inlet, defined at least in part by the housing, through which the test sample is introduced into the device, wherein at least one channel of the plurality of channels is in communication with the inlet and with the first test chamber and the second test chamber to deliver a portion of the test sample to each of the first test chamber and the second test chamber, and wherein the fluid pathway includes a first port, defined at least in part by the housing, in communication with a channel of the fluid pathway and from which a pressure gradient when applied from a source external to the first port draws the test sample through the at least one channel of the fluid pathway and into at least one of the test chambers, wherein the at least one channel of the fluid pathway includes an inlet channel, a first channel, and a second channel, wherein the inlet channel is in communication with the inlet, wherein the first channel is in communication with the inlet channel and at least with the first test chamber, and wherein the second channel is in communication with the inlet channel and at least with the second test chamber, wherein the housing includes a thermally conductive wall configured to allow the test sample to be heated, the thermally conductive wall having an outer surface area and an inner surface area; wherein the fluid pathway includes a portion at least partially defined by the inner surface area of the thermally conductive wall and the outer surface area of the thermally conductive wall is shaped to be held in at least partially conforming contact with or in close proximity to a heater to allow adjustment of a temperature of the test sample flowing through the portion at least partially defined by the inner surface area of the thermally conductive wall; and wherein the device can be used with an interrogation device to measure at least one viscoelastic property of the test sample. - 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)
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26. A device comprising:
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a housing; a plurality of test chambers, wherein the plurality of test chambers includes at least a first test chamber and a second test chamber that are each at least partially defined by the housing, wherein the first test chamber and the second test chamber are each designed to be interrogated to determine a hemostatic parameter of a test sample of blood that is received therein and a reagent or combination of reagents, wherein a first reagent or combination of reagents in the first test chamber is different than a second reagent or combination of reagents in the second test chamber; and a fluid pathway comprising a plurality of channels, each defined at least in part by the housing, wherein the fluid pathway includes an inlet, defined at least in part by the housing, through which the test sample is introduced into the device, wherein at least one channel of the plurality of channels is in communication with the inlet and with the first test chamber and the second test chamber to deliver a portion of the test sample to each of the first test chamber and the second test chamber, and wherein the fluid pathway includes a first port, defined at least in part by the housing, in communication with a channel of the fluid pathway and from which a pressure gradient when applied from a source external to the first port draws the test sample through the fluid pathway and into at least one of the test chambers, wherein the at least one channel of the fluid pathway includes an inlet channel, a first channel, and a second channel, wherein the inlet channel is in communication with the inlet, wherein the first channel is in communication with the inlet channel and at least with the first test chamber, and wherein the second channel is in communication with the inlet channel and at least with the second test chamber, wherein at least a portion of the housing is thermally conductive to allow the test sample to be heated, wherein the first reagent or combination of reagents activates the test sample via an intrinsic pathway of coagulation, an extrinsic pathway of coagulation, or a combination thereof, wherein the second reagent or combination of reagents activates the test sample via an intrinsic pathway of coagulation, an extrinsic pathway of coagulation, or a combination thereof, wherein at least one of the first reagent or combination of reagents and the second reagent or combination of reagents activates the test sample via the extrinsic pathway of coagulation, wherein the second reagent or combination of reagents further includes one or both of abciximab and cytochalasin D, and wherein the device can be used with an interrogation device to measure at least one viscoelastic property of the test sample. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A device comprising:
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a housing; a plurality of test chambers, wherein the plurality of test chambers includes at least a first test chamber, a second test chamber, and a third test chamber that are each at least partially defined by the housing, wherein each of the first test chamber, the second test chamber, and the third test chamber are designed to be interrogated to determine a hemostatic parameter of a test sample of blood that is received therein and a reagent or combination of reagents, wherein a first reagent or combination of reagents, a second reagent or combination of reagents, and a third reagent or combination of reagents each activate the test sample via an intrinsic pathway of coagulation, an extrinsic pathway of coagulation, or a combination thereof, and wherein the first reagent or combination of reagents is different than the second reagent or combination of reagents; and a fluid pathway comprising a plurality of channels, each defined at least in part by the housing, wherein the fluid pathway includes an inlet, defined at least in part by the housing, through which the test sample is introduced into the device, wherein at least one channel of the plurality of channels is in communication with the inlet and with the first test chamber, the second test chamber, and the third test chamber to deliver a portion of the test sample to each of the first test chamber, the second test chamber, and the third test chamber, wherein the fluid pathway includes a first port, defined at least in part by the housing, in communication with a channel of the fluid pathway and from which a pressure gradient when applied from a source external to the first port draws the test sample through the fluid pathway and into at least one of the test chambers wherein the at least one channel of the fluid pathway includes an inlet channel, a first channel, and a second channel, wherein the inlet channel is in communication with the inlet, wherein the first channel is in communication with the inlet channel and at least with the first test chamber, and wherein the second channel is in communication with the inlet channel and at least with the second test chamber, wherein the fluid pathway includes a second port, defined at least in part by the housing, in communication with a channel of the fluid pathway and from which a pressure gradient when applied from a source external to the second port draws the test sample to move from an external vessel through the inlet and the at least one channel of the fluid pathway into the housing, and wherein the fluid pathway includes a portion designed to be held against a heater to allow adjustment of a temperature of the test sample flowing through the portion, wherein the first port and/or the second port prevents the test sample from leaving the device, wherein at least a portion of the housing is designed to be thermally conductive to allow the test sample to reach about 37°
C. in the test chambers; andwherein the device is configured for use with an interrogation device to measure at least one viscoelastic property of the test sample.
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52. A system for evaluation of hemostasis, the system comprising:
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a consumable cartridge configured to be positioned in an analysis system, the consumable cartridge comprising a cartridge housing; a plurality of test chambers, wherein the plurality of test chambers includes at least a first test chamber and a second test chamber that are each at least partially defined by the cartridge housing, wherein the first test chamber and the second test chamber are each designed to be interrogated to determine a hemostatic parameter of a test sample of blood that is received therein and a reagent or combination of reagents, wherein a first reagent or combination of reagents in the first test chamber is different than a second reagent or combination of reagents in the second test chamber; and a fluid pathway comprising a plurality of channels, each defined at least in part by the cartridge housing, wherein the fluid pathway includes an inlet, defined at least in part by the cartridge housing, through which the test sample is introduced into the consumable cartridge, wherein at least one channel of the plurality of channels is in communication with the inlet and with the first test chamber and the second test chamber to deliver a portion of the test sample to each of the first test chamber and the second test chamber, and wherein the fluid pathway includes a first port, defined at least in part by the cartridge housing, in communication with a channel of the fluid pathway and from which a pressure gradient when applied from a source external to the first port draws the test sample through the at least one channel of the fluid pathway and into at least one of the test chambers, and a heat exchanger, and a temperature control coupled thereto, designed to allow the temperature of the test sample to be adjusted before analysis in the test chambers; an interrogation device designed to measure at least one viscoelastic property of the test sample; a pressure control designed to apply the pressure gradient that causes the test sample to flow through the fluid pathway and into the test chambers; and an analysis system, the analysis system comprising; an analysis system housing having a pocket designed to receive the consumable cartridge, the pocket comprising an actuator system that allows the heat exchanger, the interrogation device, and the pressure control to be positioned adjacent to the consumable cartridge. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77)
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Specification