Liquid injection system having liquid injector capable of optically reading two-dimensional code assigned to liquid syringe

• US 20050148869A1
• Filed: 10/28/2004
• Published: 07/07/2005
• Est. Priority Date: 10/29/2003
• Status: Abandoned Application

• Current Assignee: Nemoto Kyorindo Company Limited, OLKO-Maschinentechnik GmbH
• Original Assignee: Nemoto Kyorindo Company Limited
• Inventors: Masuda, Kazumasa
• Application Number:
  US10/974,935
• Publication Number:
  US 20050148869A1
• Time in Patent Office: Days
• US Class Current: 600/432
• CPC Class Codes: A61M 2205/60 with identification means
• CPC Class Codes: A61M 2205/6063 Optical identification systems
• CPC Class Codes: A61M 2209/084 Supporting bases, stands for equipment
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir

Abstract

The liquid syringe has various kinds of data items recorded in the two-dimensional code format. The liquid injector optically reads the two-dimensional codes, decodes them, and executes a predetermined operations corresponding to the decoded results. Recording, for example, a variable pattern for the liquid of interest in the two-dimensional code format on the liquid syringe makes it possible for the liquid injector to inject the liquid in accordance with the predetermined variable pattern.

Claims

1-15. -15. (canceled)

16. A liquid injection system including

at least one liquid syringe having a piston member slidably inserted into a cylinder member filled with a liquid, and a liquid injector in which the liquid syringe is exchangeably mounted and that has a liquid injection mechanism that moves said cylinder member and said piston member of the liquid syringe relative to each other to inject said liquid into a patient;

and wherein

said liquid syringe has various kinds of data items recorded in a two-dimensional code, and

said liquid injector further comprises;

a two-dimensional code-reader to optically read said two-dimensional code,

a two-dimensional code-decoder connected to the coder to decode optically read two-dimensional codes, and

an operation-controller connected to the decoder and responsive to decoded two-dimensional code data to execute predetermined operations corresponding to the decoded results of said two-dimensional codes.

17. A liquid injection system according to claim 16, wherein said liquid injector has a data-display for displaying various kinds of data items, and,

said operation-controller has a memory for storing the decoded results of said two-dimensional codes and a display-controller connected to the memory and to the data display to produce a display of at least a part of the stored decoded results on said data-display.

18. A liquid injection system according to claim 17, wherein said liquid injector includes an injection control unit in which at least said operation-controller is mounted;

and an injection head formed separately from said injection control unit and having at least said liquid injection mechanism and said data-display mounted therein.

19. A liquid injection system according to claim 18, wherein said code-reader is also mounted in said injection head.

20. A liquid injection system according to claim 16, wherein said code-reader is arranged in said liquid injector at a position to optically read said two-dimensional codes of the liquid syringe mounted in the liquid injector.

21. A liquid injection system according to claim 20, wherein said operation-controller enables operation of said liquid injection mechanism only when said code-reader optically detects said two-dimensional codes.

22. A liquid injection system according to claim 16, wherein said operation-controller has a memory for storing the decoded results of said two-dimensional codes and an injection-controller connected to the memory and to the injection mechanism to control the operation of the injection mechanism corresponding to at least a part of the stored decoded results.

23. A liquid injection system according to claim 22, provided with a prefilled liquid syringe that is filled with a contrast medium as a liquid to be injected into a patient when a diagnostic image of the patient is shot through a diagnostic imaging apparatus, wherein

the two-dimensional codes of said liquid syringe establish a variable pattern for varying the injection rate of said contrast medium with time;

and

said operation-controller varies the speed of operation of said liquid injection mechanism with time in accordance with said variable pattern.

24. A liquid injection system according to claim 16, wherein said operation-controller is provided with:

a confirmation memory for storing predetermined confirmation conditions;

a data collator that collates the stored confirmation conditions and the decoded results of said two-dimensional codes; and

a warning device that is connected to the data collator and that provides a confirmation warning corresponding to the collated results.

25. A liquid injection system according to any one of claims 16 through 24, provided with a prefilled liquid syringe that is filled with a liquid, with said two-dimensional code of said prefilled liquid syringe having at least a production number corresponding to the respective syringe established in the two-dimensional code, and wherein

said operation-controller is provided with a data memory in which production numbers of liquid syringes that have been deployed, and activated to execute an injection operation, are stored;

a data collator that collates said production numbers that have been stored and the newly read production number of said provided prefilled liquid syringe; and

a warning device for providing a confirmation warning when the collated production numbers coincide with each other.

26. A liquid injection system according to claim 16, further provided with syringe peripheral devices including a hollow needle-like member adapted for inserting into a patient and for a flow of said liquid, an extension tube for connecting said needle-like member and said liquid syringe for the flow of said liquid, and a one-way valve inserted in said extension tube to control the flow direction of said liquid, and wherein

two-dimensional codes representing various kinds of data items established in connection with each of said syringe peripheral devices are also recorded on said syringe peripheral devices.

27. A liquid injection system according to claim 16, further provided with patient peripheral devices including a wristband for engagement around a wrist of a patient to be injected, and a form card for entering various kinds of data items about the patient to be injected, and wherein the two-dimensional codes representing various kinds of data items established in connection to each of said patient peripheral devices are also recorded on said patient peripheral devices.

28. A liquid injection system according to claim 16, further including

a liquid-temperature retaining apparatus for keeping the liquid in a liquid syringe to be deployed at a predetermined temperature via a heat-retaining mechanism that is separate from said liquid injector, and wherein

said liquid-temperature retaining apparatus is also provided with a code-reader for optically reading said two-dimensional codes, a code-decoder for decoding two-dimensional codes that have been optically read, and an operation-controller that executes predetermined operations corresponding to the decoded results of the read said two-dimensional codes.

29. A liquid injector provided with

a code-reader for optically reading two-dimensional codes,

a code-decoder connected to said code reader to decode two-dimensional codes that have been optically read by the code reader, and

an operation-controller connected to the decoder to execute predetermined operations corresponding to the decoded results of the read two-dimensional codes, and wherein

said liquid injector is adapted to the liquid injection system according to claim 16.

30. A liquid-temperature retaining apparatus provided with

a code-reader for optically reading two-dimensional codes,

a code-decoder for decoding said two-dimensional codes that have been optically read, and

an operation-controller for executing predetermined operations corresponding to the decoded results of the read said two-dimensional codes, and wherein

said liquid-temperature retaining apparatus is adapted to the liquid injection system according to claim 28.