摘要:
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 sealing member and the housing.
摘要:
This invention provides a platelet-rich plasma separator, which can carry out the separation of a platelet-rich plasma with a small number of gamma radiation sterilized instruments, and a platelet-rich plasma separation method. The platelet-rich plasma separator comprises a first syringe (10) and a second syringe (11). The first syringe (10) comprises a first syringe cylinder (13) provided with a first port (12) on which a blood collection needle can be mounted, a first cap (14) detachable from the first port (12), a first gasket (15) for sealing the first syringe cylinder (13) fluid-tightly, which first gasket (15) is reciprocated within the first syringe cylinder (13), and a first plunger (16) provided detachably on the first gasket (15). The second syringe (11) comprises a first hollow needle (30), which can be passed through the first gasket (15), a second syringe cylinder (32) having a second port (31) on which the first hollow needle (30) can be mounted, a second cap (33) detachable from the second port (32), a second gasket (34) for sealing the second syringe cylinder (32) liquid-tightly, which second gasket (34) is reciprocated within the second syringe cylinder (32), and a second plunger (35) provided detachably on the second gasket (34).
摘要:
Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel (310), plunger rod (340) and stopper assembly (360) having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel (310), plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere.
摘要:
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 sealing member and the housing.
摘要:
Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary Medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
摘要:
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 sealing member and the housing.
摘要:
Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary medical device includes a syringe barrel (310), plunger rod (340) and stopper assembly (360) having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel (310), plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper. Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere.
摘要:
Medical device assemblies capable of aspirating liquid into a syringe barrel or other medical devices while evacuating any air from the syringe are described. An exemplary Medical device includes a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within either the stopper or the plunger rod. Described is a medical device including a syringe barrel, plunger rod and stopper assembly having an air permeable and liquid impermeable porous portion and structure for forming a vacuum within chamber between the stopper and plunger rod wherein the plunger rod includes a sealing edge and is moveable relative to the stopper Exemplary medical devices may include a vent for allowing air that permeates through the porous portion to escape to atmosphere. Methods for aspirating a syringe barrel with a liquid are also provided.
摘要:
This invention provides a platelet-rich plasma separator, which can carry out the separation of a platelet-rich plasma with a small number of gamma radiation sterilized instruments, and a platelet-rich plasma separation method. The platelet-rich plasma separator comprises a first syringe (10) and a second syringe (11). The first syringe (10) comprises a first syringe cylinder (13) provided with a first port (12) on which a blood collection needle can be mounted, a first cap (14) detachable from the first port (12), a first gasket (15) for sealing the first syringe cylinder (13) fluid-tightly, which first gasket (15) is reciprocated within the first syringe cylinder (13), and a first plunger (16) provided detachably on the first gasket (15). The second syringe (11) comprises a first hollow needle (30), which can be passed through the first gasket (15), a second syringe cylinder (32) having a second port (31) on which the first hollow needle (30) can be mounted, a second cap (33) detachable from the second port (32), a second gasket (34) for sealing the second syringe cylinder (32) liquid-tightly, which second gasket (34) is reciprocated within the second syringe cylinder (32), and a second plunger (35) provided detachably on the second gasket (34).