Syringe-based fluid diversion mechanism for bodily fluid sampling
First Claim
1. A syringe-based device for parenterally-procuring bodily fluid samples with reduced contamination from a patient, the device comprising:
- a housing including a proximal end portion and a distal end portion and defining an inner volume therebetween, the proximal end portion being substantially open and the distal end portion having a port configured to be coupled to a lumen-defining device for receiving bodily fluid from the patient;
a pre-sample reservoir fluidically coupleable to the port and configured to receive and isolate a first volume of bodily fluid withdrawn from the patient; and
an actuator mechanism at least partially disposed in the inner volume of the housing, the actuator mechanism having a proximal end portion and a distal end portion, the distal end portion including a sealing member and the proximal end portion including a first protrusion and a second protrusion configured to selectively engage with the first protrusion to substantially limit a proximal movement of the second protrusion relative to the first protrusion, and configured to move through the substantially open proximal end portion of the housing when receiving the bodily fluid from the patient into a sample reservoir, the sealing member defining a channel extending from a distal end to a proximal end of the sealing member, the actuator mechanism configured to move between a first configuration in which the bodily fluid can flow from the port to the pre-sample reservoir through the channel in the sealing member, and a second configuration in which the bodily fluid can flow from the port to the sample reservoir, the sample reservoir defined at least in part by the sealing member and the housing.
4 Assignments
0 Petitions
Accused Products
Abstract
A syringe-based device includes a housing, a pre-sample reservoir, and an actuator. The housing defines an inner volume between a substantially open proximal end portion and a distal end portion that includes a port couplable to a lumen-defining device. The pre-sample reservoir is fluidically couplable to the port to receive and isolate a first volume of bodily fluid. The actuator is at least partially disposed in the inner volume and has a proximal end portion that includes an engagement portion and a distal end portion that includes a sealing member. The engagement portion is configured to allow a user to selectively move the actuator between a first configuration such that bodily fluid can flow from the port to the pre-sample reservoir, and a second configuration such that bodily fluid can flow from the port to a sample reservoir defined at least in part by the scaling member and the housing.
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Citations
30 Claims
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1. A syringe-based device for parenterally-procuring bodily fluid samples with reduced contamination from a patient, the device comprising:
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a housing including a proximal end portion and a distal end portion and defining an inner volume therebetween, the proximal end portion being substantially open and the distal end portion having a port configured to be coupled to a lumen-defining device for receiving bodily fluid from the patient; a pre-sample reservoir fluidically coupleable to the port and configured to receive and isolate a first volume of bodily fluid withdrawn from the patient; and an actuator mechanism at least partially disposed in the inner volume of the housing, the actuator mechanism having a proximal end portion and a distal end portion, the distal end portion including a sealing member and the proximal end portion including a first protrusion and a second protrusion configured to selectively engage with the first protrusion to substantially limit a proximal movement of the second protrusion relative to the first protrusion, and configured to move through the substantially open proximal end portion of the housing when receiving the bodily fluid from the patient into a sample reservoir, the sealing member defining a channel extending from a distal end to a proximal end of the sealing member, the actuator mechanism configured to move between a first configuration in which the bodily fluid can flow from the port to the pre-sample reservoir through the channel in the sealing member, and a second configuration in which the bodily fluid can flow from the port to the sample reservoir, the sample reservoir defined at least in part by the sealing member and the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A syringe-based device for parenterally-procuring bodily fluid samples with reduced contamination from a patient, the device comprising:
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a housing including a proximal end portion and a distal end portion and defining an inner volume therebetween, the proximal end portion being substantially open and the distal end portion having a port configured to be coupled to a lumen-defining device for receiving bodily fluids from the patient; an actuator mechanism movably disposed in the inner volume, the actuator mechanism including a first member having a proximal end portion and a distal end portion and defining an inner volume therebetween, and a second member movably disposed in the inner volume of the first member, the proximal end portion of the first member configured to move through the substantially open proximal end portion of the housing when receiving the bodily fluid samples within the inner volume of the housing, the first member including a first plunger disposed at the distal end portion of the first member and a first protrusion disposed at a proximal end portion of the first member, the first plunger including a flow channel configured to allow selective fluid communication between the inner volume defined by the housing and the inner volume defined by the first member, and the second member including a second plunger disposed at a distal end portion of the second member and a second protrusion disposed at a proximal end portion of the second member and configured to selectively engage with the first protrusion of the first member to substantially limit a proximal movement of the second member relative to the first member, and configured to move through the substantially open proximal end portion of the housing when receiving the bodily fluid from the patient into a sample reservoir; and mechanical stops configured to prevent removal of the actuator mechanism from the housing. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A device for procuring bodily fluid from a patient, the device comprising:
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a housing including a proximal end portion and a distal end portion, the proximal end portion being substantially open and the distal end portion having a port configured to receive the bodily fluid from the patient; a first member movably disposed within the housing and including a first plunger disposed at a distal end portion of the first member and a first protrusion disposed at a proximal end portion of the first member, the first plunger including a flow channel to allow the body fluid to flow therethrough; and a second member movably disposed within the first member and including a second plunger disposed at a distal end portion of the second member, the second member including a second protrusion disposed at a proximal end portion of the second member and configured to selectively engage with the first protrusion of the first member to substantially limit a proximal movement of the second member relative to the first member and configured to move through the substantially open proximal end portion of the housing when receiving the bodily fluid from the patient into a sample reservoir. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification