# US 11,896,984 B2 · Container for centrifugation

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- Number: US 11,896,984 B2
- Document ID: US11896984B2
- Status: Granted
- Kind: B2
- Application number: 16/499,863
- Filed: 2018-03-30
- Published: 2020-01-23
- Granted: 2024-02-13
- Earliest claimed: 2017-03-30
- Applicants: Hyun Sun Shin
- Inventors: Hyun Sun Shin
- Web page: https://patentgrep.com/patent/US11896984B2

## CPC

- B01L 3/50215: {using a float to separate phases}
- B04B 7/08: Rotary bowls (centrifugal casting machines B22D)
- A61M 1/3696: {with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation}
- B01D 17/0217: {by centrifugal force}
- B01L 2200/0684: Venting, avoiding backpressure, avoid gas bubbles
- B01L 2200/0689: Sealing
- B01L 2300/042: Caps; Plugs
- B01L 2300/046: Function or devices integrated in the closure
- B01L 2300/048: enabling gas exchange, e.g. vents
- B01L 2300/0832: cylindrical, tube shaped
- B01L 2300/0864: comprising only one inlet and multiple receiving wells, e.g. for separation, splitting
- B01L 2400/0409: centrifugal forces
- B01L 2400/0688: surface tension valves, capillary stop, capillary break
- G01N 33/491: {by separating the blood components (G01N15/05 takes precedence)}
- G01N 2001/4083: {sedimentation}
- B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B04B: CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

The present invention relates to a container for centrifugation. The container for centrifugation includes: a main body (100) including a first chamber (110) in which a material to be centrifuged is received, a second chamber (120) in which a suspended material centrifuged from the material in the first chamber (110) is decanted from the first chamber (110) and received and which is positioned on one side of the first chamber (110), and a coupling part (130) formed to surround the first chamber (110) and the outside of the upper end of the second chamber (120); and a cover (200) which covers an upper portion of the main body (100) and forms a fluid communication path (P) of the decanted suspended material between the first chamber (110) and the second chamber (120).

## Claims

### Claim 1

A container for centrifugation comprising:
a main body (100) including a first chamber (110) in which a material to be centrifuged is received, a second chamber (120) in which a suspended material centrifuged from the material in the first chamber (110) is decanted from the first chamber (110) and received and which is positioned on one side of the first chamber (110), and a coupling part (130) formed to surround the first chamber (110) and the outside of the upper end of the second chamber (120); and
a cover (200) which covers an upper portion of the main body (100) and forms a fluid communication path (P) of the decanted suspended material between the first chamber (110) and the second chamber (120),
wherein the inside of the first chamber (110) has a valve body (140′) which is disposed to linearly reciprocate in a longitudinal direction of the first chamber (110) to be positioned on a boundary layer between the centrifuged materials and have a through-hole (145′) formed on the bottom surface and through which the material to be centrifuged is separately moved,
the cover (200) is configured by a ring part (230) which forms the rim of the cover (200) and is formed to be coupled to the coupling part (130) at the rim of the cover, a recess part (220) which is connected to the inner side of the ring part (230) to be formed in a recessed shape, and a protrusion part (210) which is connected to the inner side of the recess part (220) and formed in a protruding shape to form the fluid communication path (P) so that the suspended material is discharged from the first chamber (110) to the second chamber (120),
in the protrusion part (210), an inlet port (212) is formed to protrude from the protrusion part (210) for injecting the material to be centrifuged to the first chamber (110),
the recess part (220) has an air vent for discharging inner air by injecting the material to be centrifuged to the first chamber (110) and a discharge port for discharging a suspended material introduced into the second chamber (120),
the ring part (230) includes an outer ring part (231), a planar ring part (232) connected to the outer ring part (231), and an inner ring part (233) which is connected with the planar ring part (232) and has a stepped portion, wherein a ring hook (231-1) is formed on an inner peripheral surface of the outer ring part (231), and
an outer end portion of the coupling part (130) has a coupling hook (131) which is extended upward and corresponds to an outer peripheral surface so as to be coupled with the ring hook (231-1) of the outer ring part (231),
wherein the valve body (140′) is configured by an inner bottom surface (143′), an outer bottom surface (141′) forming a lower surface of the inner bottom surface (143′), an inner surface (144′) connected with the inner bottom surface (143′), an outer surface (142′) forming the outer portion of the inner surface (144′) and connected with the outer bottom surface (141′), and the through-hole (145′) formed by passing through the inner bottom surface (143′) and the outer bottom surface (141′) to be formed in a cup shape as a whole, and
a foot plate (141-1′) protrudes from the outer bottom surface (141′), the inner surface (144′) has a first slope surface (144-1′) and a second slope surface (144-2′) formed sequentially from the lower portion to the upper portion for smooth movement of the suspended material, the outer surface (142′) has a larger diameter upward and is formed so as to be inclined upward, and the upper end of the outer surface (142′) has an outer surface minute protrusion part (142-1′) minutely protruding outward along the outer peripheral surface.

### Claim 2 (depends on 1)

The container for centrifugation of claim 1, wherein the through-hole (145′) is configured by a straight pipe part (145-1′) formed upward from the outer bottom surface (141′) and an enlarged pipe part (145-2′) having a diameter enlarged to an upper portion from an end portion of the straight pipe part (145-1′), and
in order to extend the enlarged pipe part (145-2′), the inner bottom surface (143′) is provided with a hill part (143-1′) protruding from a center thereof.

### Claim 3

A container for centrifugation comprising:
a main body (100) including a first chamber (110) in which a material to be centrifuged is received, a second chamber (120) in which a suspended material centrifuged from the material in the first chamber (110) is decanted from the first chamber (110) and received and which is positioned on one side of the first chamber (110), and a coupling part (130) formed to surround the first chamber (110) and the outside of the upper end of the second chamber (120); and
a cover (200) which covers an upper portion of the main body (100) and forms a fluid communication path (P) of the decanted suspended material between the first chamber (110) and the second chamber (120),
wherein the inside of the first chamber (110) has a valve body (140′″) which is disposed to linearly reciprocate in a longitudinal direction of the first chamber (110) to be positioned on a boundary layer between the centrifuged materials and have a through-hole (145′″) formed on the bottom surface and through which the material to be centrifuged is separately moved,
the cover (200) is configured by a ring part (230) which forms the rim of the cover (200) and is formed to be coupled to the coupling part (130) at the rim of the cover, a recess part (220) which is connected to the inner side of the ring part (230) to be formed in a recessed shape, and a protrusion part (210) which is connected to the inner side of the recess part (220) and formed in a protruding shape to form the fluid communication path (P) so that the suspended material is discharged from the first chamber (110) to the second chamber (120),
in the protrusion part (210), an inlet port (212) is formed to protrude from the protrusion part (210) for injecting the material to be centrifuged to the first chamber (110),
the recess part (220) has an air vent for discharging inner air by injecting the material to be centrifuged to the first chamber (110) and a discharge port for discharging a suspended material introduced into the second chamber (120),
the ring part (230) includes an outer ring part (231), a planar ring part (232) connected to the outer ring part (231), and an inner ring part (233) which is connected with the planar ring part (232) and has a stepped portion, wherein a ring hook (231-1) is formed on an inner peripheral surface of the outer ring part (231), and
an outer end portion of the coupling part (130) has a coupling hook (131) which is extended upward and corresponds to an outer peripheral surface so as to be coupled with the ring hook (231-1) of the outer ring part (231),
wherein the valve body (140′″) is configured by an inner bottom surface (143′″), an outer bottom surface (141′″) forming a lower surface of the inner bottom surface (143′″), an inner surface (144′″) connected with the inner bottom surface (143′″), an outer surface (142′″) forming the outer portion of the inner surface (144′″) and connected with the outer bottom surface (141′″), and a through-hole (145′″) formed by passing through the inner bottom surface (143′″) and the outer bottom surface (141′″) to be formed in a cup shape as a whole, and
a foot plate (141-1′″) is formed to protrude from the outer bottom surface (141′″), the inner surface (144′″) forms a slope surface (144-1′″) at a predetermined angle to the upper portion from the lower portion for smooth movement of the suspended material, the outer surface (142′″) has a larger diameter toward the upper portion so that the cross section has a shape inclined outward, and the upper end of the outer surface (142′″) has an outer surface minute protrusion part (142-1′″) protruding outward along the outer peripheral surface.

### Claim 4 (depends on 3)

The container for centrifugation of claim 3, wherein the through-hole (145′″) is configured by an undercut part (145-3′) formed for smooth flow of the suspended material upward from the outer bottom surface (141′″), a straight pipe part (145-1′″) formed on an upper portion of the undercut part (145-3″), and an enlarged pipe part (145-2′″) having a diameter enlarged to an upper portion from an end portion of the straight pipe part (145-1′″), and
in order to extend the enlarged pipe part (145-2′″), the inner bottom surface (143′″) is provided with a hill part (143-1′) protruding from a center thereof.