Hemolysis-reduction accessories for direct blood draw
AssigneeCareFusion 303, Inc.
InventorsAmarsinh Deeliprao Jadhav, Mohammed Mehtab Khan, Rahul Malviya
Life of this patent
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Abstract
A flow restriction device may include a housing with first and second end portions forming respective first and second openings, and a cavity configured to receive an insert body defining a fluid passage that extends from a first opening of the housing at the first end portion to a second opening of the housing at the second end portion, where the fluid passage extends in more than one direction along a path between the first and second end portions of the housing to induce a resistance to a fluid flow moving through the device, thereby reducing a flow rate and pressure of the fluid, and where the fluid is blood, reduce the hemolysis index of the blood.
Claims20
A flow restriction device, comprising:
- a housing comprising a first end portion, a second end portion, an inner surface forming a cavity between the first and second end portions, a first opening through the first end portion, and a second opening through the second end portion;
- and
- an insert body comprising a first end, a second end, a longitudinal axis extending through the first and second ends, and an inner surface forming a fluid passage extending between the first and second ends, the fluid passage comprising a first portion that extends in a first direction away from the longitudinal axis, a second portion that extends in a second direction toward the longitudinal axis, and a third portion that extends in the first direction;
- wherein the insert body is positioned within the cavity with a first opening of the fluid passage fluidly coupled with the first opening of the housing, and a second opening of the fluid passage fluidly coupled with the second opening of the housing, a third opening of the fluid passage formed by a fourth portion of the fluid passage that extends through an outer surface of the insert body, and a fourth opening of the fluid passage formed by a fifth portion of the fluid passage that extends through an outer surface of the insert body, wherein the fourth opening is spaced apart from the third opening.
A flow restriction device, comprising:
- a housing comprising a first end portion, a second end portion, an inner surface forming a cavity between the first and second end portions, a first opening through the first end portion, and a second opening through the second end portion-portions;
- and
- an insert body comprising a first end, a second end, an outer surface extending between the first and second ends, and an inner surface forming a fluid passage extending between the first and second ends, the fluid passage having a first opening through the first end of the insert body, a second opening through the second end of the insert body, a third opening through the outer surface, and a fourth opening through the outer surface, wherein the fourth opening is spaced apart from the third opening;
- wherein the insert body is positioned within the cavity with the first opening of the fluid passage fluidly coupled with the first opening of the housing, the second opening of the fluid passage fluidly coupled with the second opening of the housing, and the third opening obstructed by the inner surface of the housing.
Dependencies are inferred from the claim text.