Automatic centrifuge, pre-analysis system with automatic centrifuge and the control techniques of that system

• US 9,651,570 B2
• Filed: 12/20/2011
• Issued: 05/16/2017
• Est. Priority Date: 12/28/2010
• Status: Active Grant

• Current Assignee: Hitachi High-Tech Company Limited (Hitachi, Ltd.)
• Original Assignee: Hitachi High-Technologies Corporation (Hitachi, Ltd.)
• Inventors: Noda, Takayuki, Akutsu, Masashi, Yagi, Kenichi
• Primary Examiner(s): GRIFFIN, WALTER DEAN
• Assistant Examiner(s): Liu, Shirley S
• Application Number:
  US13/976,672
• Publication Number:
  US 20130281279A1
• Time in Patent Office: 1,974 Days
• Field of Search: 494 1, 494 42
• CPC Class Codes: B04B 13/00 Control arrangements specially designed for centrifuges; Programme control of centrifuges control arrangements for feed, charge, or discharge B04B11/00
• CPC Class Codes: B04B 2011/046 Loading, unloading, manipulating sample containers
• CPC Class Codes: B04B 9/14 Balancing rotary bowls balancing per se G01M; Schrappers
• CPC Class Codes: B04B 9/146 Unbalance detection devices
• CPC Class Codes: G01N 35/04 Details of the conveyor system G01N35/021 - G01N35/028 take precedence

Abstract

A determination mechanism which obtains information about the weight of the specimen housed in the specimen container is arranged on a conveyor line for connecting between a loading module and an automatic centrifugal unit, the specimens are held without being installed at an adaptor until the number of the specimens which can be subjected to a centrifugal processing at once by the automatic centrifugal unit arrives, and the specimens are installed after the arrival in an order from a heavier specimen at the adaptors to be paired, which are installed at the symmetric positions to each other across the rotation central axis. Also, the specimen is installed at the gravity-center position of the adaptor first, and the subsequent specimens are installed from the inner side at the point-symmetric positions to each other across the gravity-center position.

Claims

1. A pre-analysis system comprising:

a conveyor line which conveys a plurality of holders for holding a first plurality of specimen containers in which respective specimens are housed;

an automatic centrifugal unit arranged along the conveyor line; and

a computer connected with the conveyor line and the automatic centrifugal unit;

the automatic centrifugal unit comprising;

a centrifuge which rotates a second plurality of specimen containers around a rotation central axis;

a plurality of adaptors, each of which has a plurality of holes, configured in a lattice pattern, each hole able to receive a respective specimen container of the first plurality of specimen containers;

a plurality of buckets positioned symmetrically to each other across the rotation central axis of the centrifuge and on which the adaptors can be installed detachably; and

a specimen container chuck mechanism fixed on a horizontal and vertical transporting mechanism;

wherein the computer is programmed to control the specimen container chuck mechanism to;

grip one of the specimen containers held in one of the holders,

transport of the specimen container gripped by the specimen container chuck mechanism from the one of the holders to the adaptor, and

install the specimen containers gripped by the specimen container chuck mechanism into respective holes of the adaptor sequentially in an order from a hole arranged in the lattice pattern closer to a gravity center of the adaptor and, concurrently, in an order from a heavier specimen container to a lighter specimen container.

2. The pre-analysis system according to claim 1, wherein:

the automatic centrifugal unit further comprises;

a buffer line that is adjacent to the conveyor line and that holds a number of the specimen containers; and

a weight determination mechanism which directly or indirectly obtains a weight of the respective specimen housed in the respective specimen container prior to loading of the respective specimen container into a holding region on the automatic centrifugal unit; and

the computer is further programmed to control the specimen container chuck mechanism to install the specimen containers at the buffer line based on information obtained by the weight determination mechanism.

3. The pre-analysis system according to claim 1, wherein the automatic centrifugal unit further comprises a buffer line that is adjacent to the conveyor line, wherein the buffer line can hold a number of the specimen containers that is equal to or larger than the number of the specimen containers that can be installed at the plurality of adaptors at once.

4. The pre-analysis system according to claim 1, wherein the automatic centrifugal unit includes:

an adaptor holding unit which holds a plurality of the adaptors; and

an adaptor transferring mechanism which transfers the adaptors from the adaptor holding unit to the bucket and transfers the adaptors from the bucket to the adaptor holding unit, wherein;

the adaptor transferring mechanism is provided separately from the specimen container chuck mechanism, and

the adaptor holding unit holds a number of the adaptors that is larger than a number of the adaptors which can be processed by the automatic centrifugal unit at once.

5. The pre-analysis system according to claim 2, further comprising a specimen collecting unit which collects a specimen container whose specimen container weight determined by the weight determination mechanism is out of a predetermined range of a threshold value.

6. The pre-analysis system according to claim 5, further comprising a display device which displays a setting screen for setting the threshold value of the specimen container weight so as to correspond to a type of the specimen container.

11. The pre-analysis system according to claim 1, wherein the computer is further programmed to control the specimen container chuck mechanism to:

install a first specimen container into a first hole of the adaptor that is positioned closest to the gravity center of the adaptor;

install a second specimen container into a second hole of the adaptor that is positioned second closest to the gravity center of the adaptor; and

install a third specimen container into a third hole of the adaptor that is positioned symmetrically to the gravity center of the adaptor with respect to the second hole.

12. The pre-analysis system according to claim 1, wherein the plurality of holes of the adaptor include a centrally located hole at the gravity center of the adaptor and a plurality of other holes symmetrically arranged around the centrally located hole to provide the lattice pattern.

7. An automatic centrifuge comprising:

a centrifuge that rotates a plurality of specimen containers around a rotation central axis;

at least two adaptors which have a plurality of holes in which a plurality of specimen containers can be installed;

at least two buckets positioned symmetrically to each other across the rotation central axis of the centrifuge in which the adaptors can be installed;

a buffer line which holds a number of the specimen containers;

a specimen container chuck mechanism configured to convey at least some of the specimen containers held in the buffer line to the adaptors; and

a computer connected with the centrifuge, the buffer line, and the specimen container chuck mechanism, wherein the computer is programmed to control the specimen container chuck mechanism to install the specimen containers sequentially in an order from a hole closer to a gravity center of the adaptor and, concurrently, in an order from a heavier specimen container to a lighter specimen container.

8. The automatic centrifuge according to claim 7, wherein:

the automatic centrifuge includes a weight determination mechanism which directly or indirectly obtains a weight of the specimen housed in the specimen container prior to loading of the specimen container into a holding region; and

the computer is further programmed to control the specimen container chuck mechanism so that the specimen containers are installed at the adaptor based on information obtained by the weight determination mechanism.

9. The automatic centrifuge according to claim 7, wherein the buffer line can hold a number of the specimen containers that is larger than a number of the specimen containers that can be installed at the plurality of adaptors at once.

10. The automatic centrifuge according to claim 7 further comprising:

an adaptor holding unit which holds a plurality of the adaptors; and

an adaptor transferring mechanism which transfers the adaptors from the adaptor holding unit to the bucket and transfers the adaptors from the bucket to the adaptor holding unit, wherein;

the adaptor transferring mechanism is provided separately from the specimen container chuck mechanism, and

the adaptor holding unit holds a number of the adaptors that is larger than a number of the adaptors that can be processed by the automatic centrifugal unit at once.

13. The automatic centrifuge according to claim 7, wherein the computer is further programmed to control the specimen container chuck mechanism to:

install a first specimen container into a first hole of the adaptor that is positioned closest to the gravity center of the adaptor;

install a second specimen container into a second hole of the adaptor that is positioned second closest to the gravity center of the adaptor; and

install a third specimen container into a third hole of the adaptor that is positioned symmetrically to the gravity center of the adaptor with respect to the second hole.

14. The automatic centrifuge according to claim 7, wherein the plurality of holes of the adaptor are arranged in a lattice pattern.

15. The automatic centrifuge according to claim 14, wherein the plurality of holes of the adaptor include a centrally located hole at a gravity center of the adaptor and a plurality of other holes symmetrically arranged around the centrally located hole to provide the lattice pattern.

16. A system comprising:

a centrifuge configured to rotate a plurality of specimen containers around a rotation central axis;

at least two adaptors, each adaptor having a plurality of holes configured to receive respective specimen containers, the plurality of holes including a centrally located hole at a gravity center of the adaptor and a plurality of other holes symmetrically arranged around the centrally located hole;

at least two buckets positioned symmetrically to each other across the rotation central axis of the centrifuge into which the adaptors can be installed;

a buffer line able to hold a number of the specimen containers;

a specimen container chuck mechanism configured to convey at least some of the specimen containers held in the buffer line to the adaptors; and

a computer connected with the centrifuge, the buffer line, and the specimen container chuck mechanism, wherein the computer is programmed to control the specimen container chuck mechanism to install the specimen containers sequentially in an order from the centrally located hole at the gravity center of the adaptor and, concurrently, in an order from a heavier specimen container to a lighter specimen container based at least partially on comparing respective weights of the specimen containers.

17. The system according to claim 16, wherein during the installing of the specimen containers, the computer is further programmed to control the specimen container chuck mechanism to install the specimen containers into two adapters concurrently by selecting one of the two adapters having a lightest total weight to receive a next specimen container, wherein the specimen containers are installed into each of the two adapters based on the order from respective centrally located holes and the order based at least partially on comparing respective weights of the specimen containers.

18. The system according to claim 17, wherein the computer is further programmed to determine a heaviest remaining specimen container to be installed into one of the two adaptors and select the heaviest remaining specimen container as the next specimen container.

19. The system according to claim 16, wherein the plurality of holes of the adaptor are arranged in a lattice pattern.