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US 12,728,427 B2Granted
Centrifugal piston and centrifugal separation device having same
OwnerJun Seok Leeinventor
Life of this patent
Estimating the term…
Abstract
Disclosed is a centrifugal piston including a piston body and a weight. In a centrifugal environment, a first outer weight surface of the weight is configured to get in contact with a first inner body surface of the piston body, and a gap is formed between the first inner body surface and a recess of the weight.
Claims15
A centrifugal piston comprising:
- a piston body;
- and
- a weight,
- wherein the piston body comprises:
- a first outer body surface;
- a second outer body surface opposite to the first outer body surface;
- a side outer body surface between the first outer body surface and the second outer body surface;
- a first inner body surface opposite to the first outer body surface;
- a side inner body surface connected to the first inner body surface and opposite to the side outer body surface;
- a first inlet disposed in the first outer body surface;
- an outlet disposed in the second outer body surface;
- a hollow portion defined by the first inner body surface and the side inner body surface;
- and
- a first inflow passage connecting the first inlet and the hollow portion,
- wherein the weight is arranged in the hollow portion, and comprises:
- a first outer weight surface facing the first inner body surface;
- a second outer weight surface opposite to the first outer weight surface;
- a side outer weight surface between the first outer weight surface and the second outer weight surface;
- and
- a recess disposed on the first outer weight surface,
- wherein, in a centrifugal environment, when the first outer weight surface comes into contact with the first inner body surface, the weight is configured to form a gap between the first inner body surface and the recess, and
- wherein at least one substance centrifugally separated from biological tissues is discharged through the first inlet, the first inflow passage, the gap, and the outlet.
19 more elements
A centrifugal separation device comprising:
- a rotational shaft;
- a syringe configured to rotate around the rotating shaft and configured to hold biological tissues;
- and
- a centrifugal piston arranged inside the syringe,
- wherein the centrifugal piston comprises a piston body and a weight,
- wherein the piston body comprises:
- a first outer body surface;
- a second outer body surface opposite to the first outer body surface;
- a side outer body surface between the first outer body surface and the second outer body surface;
- a first inner body surface opposite to the first outer body surface;
- a side inner body surface connected to the first inner body surface and opposite to the side outer body surface;
- a first inlet disposed in the first outer body surface;
- an outlet disposed in the second outer body surface;
- a hollow portion defined by the first inner body surface and the side inner body surface;
- and
- a first inflow passage connecting the first inlet and the hollow portion,
- wherein the weight is arranged in the hollow portion, and comprises:
- a first outer weight surface facing the first inner body surface;
- a second outer weight surface opposite to the first outer weight surface;
- a side outer weight surface between the first outer weight surface and the second outer weight surface;
- and
- a recess disposed on the first outer weight surface,
- wherein, in a centrifugal environment that the syringe rotates around the rotational shaft, when the first outer weight surface comes into contact with the first inner body surface, the weight is configured to form a gap between the first inner body surface and the recess, and
- wherein at least one substance centrifugally separated from biological tissues is discharged through the first inlet, the first inflow passage, the gap, and the outlet.
21 more elements
Dependencies are inferred from the claim text.