Kolspecimen transportation system

• US 9,874,577 B2
• Filed: 09/24/2013
• Issued: 01/23/2018
• Est. Priority Date: 09/26/2012
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Takano, Dai, Suzuki, Katsuhiro
• Primary Examiner(s): LOGAN, KYLE O
• Application Number:
  US14/411,969
• Publication Number:
  US 20150168433A1
• Time in Patent Office: 1,582 Days
• Field of Search: 700226
• CPC Class Codes: G01N 2035/00326 Analysers with modular structure
• CPC Class Codes: G01N 2035/00643 detecting malfunctions in conveying systems
• CPC Class Codes: G01N 2035/0412 Block or rack elements with a single row of samples
• CPC Class Codes: G01N 2035/0462 Buffers [FIFO] or stacks [LIFO] for holding carriers between operations
• CPC Class Codes: G01N 2035/0465 Loading or unloading the conveyor
• CPC Class Codes: G01N 2035/047 diverging, e.g. sending carriers to different analysers
• CPC Class Codes: G01N 35/00871 Communications between instruments or with remote terminals
• CPC Class Codes: G01N 35/02 using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations G01N35/0098 and G01N35/0099 take precedence
• CPC Class Codes: G01N 35/04 Details of the conveyor system G01N35/021 - G01N35/028 take precedence

Abstract

A specimen transportation system is configured from linear modules, turn modules, and connection modules. The modules can freely combine with one another. Moreover, the modules form multiple paths through which specimen racks outputted from one specimen output device are transported to multiple analysis devices. When transporting a specimen rack from an upstream side to a downstream side, each module attaches a destination signal associated with the specimen rack to the specimen rack and transfers the destination signal to the downstream side. As a consequence of each module transporting the specimen rack from the upstream side to the downstream side that corresponds to the destination signal, the specimen rack becomes transported along a path that corresponds to the destination signal.

Claims

1. A specimen transport system having a plurality of variably combinable modules, comprising:

a plurality of modules configured to be combined to create a plurality of paths for transporting a specimen from an upstream one of said plurality of modules to downstream ones of said plurality of modules, wherein the plurality of modules include an intermediate module placed in between adjacent ones of said plurality of modules along at least one of said paths,

the intermediate module having a connector that connects an upstream one of said modules at an upstream side of the intermediate module and a connector that connects a downstream one of said modules at a downstream side of the intermediate module, a transporter that transports a specimen from the upstream side of the intermediate module to the downstream side of the intermediate module, and a controller configured to control transmission of a destination signal for the specimen received from the upstream one of said modules at the upstream side of the intermediate module to the downstream one of said modules at the downstream side of the intermediate module and configured to control transmission of a node signal, indicating a possibility of transport along a path downstream of said intermediate module, received from the downstream one of said modules at the downstream side of the intermediate module to the upstream one of said modules at the upstream side of the intermediate module, whereby

the plurality of modules are configured to be variably combined with each other with different ones of said plurality of modules variably positioned adjacent one another, with adjacent modules connected to each other to create variability in the plurality of paths,

each module downstream along said plurality of paths transports a specimen from the upstream side of that module to the downstream side of that module based on a destination signal corresponding to the specimen received from a module upstream from that module so that the specimen is transported along a path corresponding to the destination signal, and

wherein said system is configured to correlate for each of the paths, a node signal indicating possibility/impossibility of transport at that path and to form a node signal array made of a plurality of the node signals for the plurality of paths, and the intermediate module is configured to transmit under control of the controller a node signal array acquired from the downstream one of said modules at the downstream side of the intermediate module to the upstream one of said modules at the upstream side of the intermediate module.

2. The specimen transport system according to claim 1, wherein

when the intermediate module transports the specimen, the intermediate module transmits, along with the specimen, the destination signal correlated to the specimen to the downstream one of said modules at the downstream side of the intermediate module.

3. The specimen transport system according to claim 1, wherein

the intermediate module is a branch module in which a plurality of downstream modules can be connected at the downstream side of the intermediate module, and

the branch module includes a controller that is configured to select, based on the destination signal, a downstream module corresponding to the destination signal from among the plurality of downstream modules.

4. The specimen transport system according to claim 3, wherein

the specimen is housed in a specimen rack, and

the controller is configured to select a downstream module corresponding to the destination signal correlated to the specimen rack which has been transported from the upstream side of the branch module, and transports the specimen rack to the selected downstream module.

5. The specimen transport system according to claim 4, wherein

the branch module comprises a rotator that rotates the specimen rack which has been transported from the upstream side of the branch module, and that is configured to select a downstream module corresponding to the destination signal by rotating the specimen rack according to the destination signal correlated to the specimen rack.

6. The specimen transport system according to claim 5, wherein

said system is configured to correlate a plurality of codes that each respectively identifies a respective path of the plurality of paths, and

the branch module is configured to set a rotational direction of a specimen rack for each code correlated to each of the plurality of paths according to the particular combination of the plurality of modules including the branch module.

7. The specimen transport system according to claim 1, wherein

said system is configured to correlate a plurality of codes that each respectively identifies a respective path of the plurality of paths, and

the destination signal is configured to identify one of the plurality of codes for a respective path of the plurality of paths.

8. The specimen transport system according to claim 7, wherein

the intermediate module is a branch module in which a plurality of downstream modules can be connected at the downstream side of the intermediate module, and

the branch module includes a controller that is configured to select a downstream module of a path corresponding to a code identified by the destination signal from among the plurality of downstream modules.

9. The specimen transport system according to claim 8, wherein

the specimen is housed in a specimen rack, and

the controller is configured to select a downstream module of a path corresponding to a code identified by the destination signal correlated to a specimen rack which has been transported from the upstream side of the branch module, and transports the specimen rack to the selected downstream module.

10. The specimen transport system according to claim 9, wherein

the branch module includes a rotator that rotates a specimen rack which has been transported from the upstream side.

11. The specimen transport system according to claim 10, wherein

the controller is configured to select the downstream module of the path corresponding to a code by rotating the specimen rack in a rotational direction corresponding to the code identified by the destination signal correlated to the specimen rack which has been transported from the upstream side of the branch module.

12. The specimen transport system according to claim 11, wherein

the branch module is configured to variably set a rotational direction according to a code for each of the codes correlated to the plurality of paths according to a variable combination of the plurality of modules including the branch module.

13. The specimen transport system according to claim 1, wherein

the intermediate module is configured to:

change, when the intermediate module becomes unable to transport, the node signal, in the node signal array to be transmitted, of the path including the intermediate module to transport impossible.

14. The specimen transport system according to claim 13, wherein

the intermediate module is a branch module in which a plurality of downstream modules can be connected at a downstream side of the intermediate module, and

the branch module is configured to merge node signal arrays acquired from the plurality of downstream modules connected at the downstream side of the intermediate module and to transmit the node signal array to the upstream module at the upstream side of the intermediate module.

15. The specimen transport system according to claim 14, wherein

the plurality of modules include a furthest upstream module placed at a furthest upstream side in each path, and a furthest downstream module placed at a furthest downstream side of each path,

the furthest upstream module being configured to refer to a node signal array acquired from a downstream module connected at the downstream side of the furthest upstream module, and to request a specimen to be transported to a path for which the node signal indicates possibility of transport while avoiding a request of a specimen to be transported to a path for which the node signal indicates impossibility of transport, and

the furthest downstream module being configured to change, when an analysis device connected at the downstream side cannot accept a specimen, a node signal of a path to the analysis device via the furthest downstream module to transport impossible.