Chemical liquid injection system

• US 9,028,446 B2
• Filed: 06/27/2011
• Issued: 05/12/2015
• Est. Priority Date: 03/03/2004
• Status: Active Grant

• Current Assignee: Nemoto Kyorindo Company Limited
• Original Assignee: Nemoto Kyorindo Company Limited
• Inventors: Nemoto, Shigeru, Tano, Nobuhisa
• Primary Examiner(s): Berdichevsky, Aarti B
• Assistant Examiner(s): SCHELL, LAURA C
• Application Number:
  US13/169,497
• Publication Number:
  US 20110284577A1
• Time in Patent Office: 1,415 Days
• Field of Search: 604/151, 604/152, 604/153, 604/65, 604/67, 604/131, 604/189
• US Class Current: 604/151
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/33 Controlling, regulating or measuring
• CPC Class Codes: A61M 2205/36 related to heating or cooling
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/6009 for matching patient with his treatment, e.g. to improve transfusion security
• CPC Class Codes: A61M 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/6054 Magnetic identification systems
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• 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
• CPC Class Codes: G06K 7/10366 the interrogation device being adapted for miscellaneous applications

Abstract

RFID chip (214) having various types of data is mounted on liquid syringe (200). Chemical liquid injector (100) obtains the various types of data from RFID chip (214) to perform a predetermined operation in accordance with at least some of the various types of data. For, example, a variable pattern for liquid can be recorded on RFID chip (214) of liquid syringe (200) to allow chemical liquid injector (100) to inject the liquid in accordance with the predetermined variable pattern. Thus, a large amount of data can be easily input to the chemical liquid injector to perform the various operations.

Claims

1. A chemical liquid injection system including:

a liquid syringe having a piston member being inserted slidably into a cylinder member filled with a contrast medium, and a chemical liquid injector having a liquid injection mechanism for relatively moving the cylinder member and the piston member of the liquid syringe exchangeably mounted on the chemical liquid injector to inject the liquid into a patient;

wherein

said liquid syringe further comprises an RFID (Radio Frequency Identification) chip having various types of data, including data on a resistance to pressure and data for checking conditions, recorded thereon, the RFID chip being mounted on said liquid syringe, and

said chemical liquid injector further comprises;

an RFID reader for obtaining the various types of data recorded on the RFID chip;

an injection control unit having operation control means configured to perform a predetermined operation in accordance with at least some of the various types of obtained data and a first data display means configured to display various types of data;

an injection head formed separately from the injection control unit, at least the liquid injection mechanism being mounted on the injection head; and

a second data display means configured to display various types of data, wherein the second display means is disposed at a position away from the injection control unit, wherein

the operation control means comprises a data holding means configured to hold the data including the data on the resistance to pressure from said RFID chip, an injection control means configure to control the operation of the liquid injection mechanism in accordance with the data on the resistance to pressure held in the data holding means, a data storing means configured to store predetermined check conditions as data and a data collating means configured to collate the stored check conditions with the data for checking conditions obtained from said RFID chip so that a check alarm can be output based on the collation result,

the second data display means is a touch panel which also receives an entry operation, and

the chemical liquid injection system is configured to display at least some of the various types of data obtained from said RFID chip at least on the second display means, and to allow an operator adjusting the operation based on the data obtained from the RFID chip by using the touch panel.

2. The chemical liquid injection system according to claim 1, wherein said operation control means comprises a display control means configured to cause at least the second data display means to output at least some of the various types of held data.

3. The chemical liquid injection system according to claim 1 wherein said RFID reader is mounted on the injection head.

4. The chemical liquid injection system according to claim 1, wherein said RFID reader is placed at a position where the RFID reader detects said RFID chip of the mounted liquid syringe in said chemical liquid injector.

5. The chemical liquid injection system according to claim 4, wherein said operation control means controls the liquid injection mechanism to enable its operation only when said RFID reader detects said RFID chip.

6. The chemical liquid injection system according to claim 4, wherein said operation control means places the liquid injection mechanism at an initial position when the completion of injection operation is detected and then the detection of said RFID chip by said RFID reader is finished.

7. The chemical liquid injection system according to claim 1, wherein said liquid syringe is of a pre-filled type which is shipped with the contrast medium filled thereinto, said RFID chip of the liquid syringe has a variable pattern set thereon for changing an injection rate of the contrast medium with time, and

said operation control means changes the operation rate of the liquid injection mechanism with time in accordance with the variable pattern.

8. The chemical liquid injection system according to claim 1, wherein said RFID chip has at least a production number of each of said liquid syringes set thereon,

said operation control means further comprises data accumulating means for storing the production number of said liquid syringe which was mounted and used to perform injection operation and an alarm outputting means configured to output the check alarm,

said data collating means collates the stored production number with the production number of a newly mounted liquid syringe, and

said alarm outputting means causes at least the second data display means to output the check alarm when the collated production numbers match.

9. The chemical liquid injection system according claim 1, wherein said liquid syringe has said RFID chip mounted thereon, the fact that the liquid syringe is used once or “

used”

being recorded as data on said RFID chip,

said operation control means further comprises an alarm outputting means configured to output the check alarm,

said operation control means further comprises data recording means for recording the “

used”

on said RFID chip of the liquid syringe which was mounted and used to perform injection operation, and

said alarm outputting means cause at least the second data display means to output the check alarm when the “

used”

is obtained from said RFID chip of the liquid syringe.

10. The chemical liquid injection system according to claim 1, further comprising peripheral device for the syringe including a hollow needle-like member inserted into the patient to flow the liquid, an extension tube connecting the needle-like member to said liquid syringe to flow the liquid, and a unidirectional valve inserted into the extension tube to regulate the flow direction of the liquid, and

an RFID chip having various types of data recorded thereon being mounted on each peripheral device for the syringe.

11. The chemical liquid injection system according to claim 1, further comprising peripheral tool for the patient including a wristband put on an arm of the patient and a medical chart on which various types of data about the patient are written, and

an RFID chip having various types of data about the patient recorded thereon being mounted on each peripheral tool for the patient.

12. The chemical liquid injection system according to claim 1, further comprising a liquid warmer for keeping the liquid in the mounted liquid syringe at an appropriate temperature with a heat-retaining mechanism, the liquid warmer being provided separately from said chemical liquid injector,

wherein the liquid warmer comprises:

an RFID reader for obtaining the various types of data recorded on said RFID chip; and

an operation control means for performing a predetermined operation in accordance with at least some of the various types of obtained data.

13. A chemical liquid injector in the chemical liquid injection system according to claim 1, comprising:

an RFID reader for obtaining the various types of data, including data on a resistance to pressure and data for checking conditions, recorded on the RFID chip; and

an injection control unit having an operation control means configured to perform a predetermined operation in accordance with at least some of the various types of obtained data and a first data display means configured to display various types of data,

an injection head formed separately from the injection control unit, at least the liquid injection mechanism being mounted on the injection head, and

a second data display means configured to display various types of data, wherein the second display means disposed at a position away from the injection control unit, wherein

the operation control means comprises a data holding means configured to hold the various types of the data including the data for the operation of the liquid injection mechanism obtained from the RFID chip, an injection control means configure to control the operation of the liquid injection mechanism in accordance with the data for the operation of the liquid injection mechanism held in the data holding means, a data storing means configured to store predetermined check conditions as data and a data collating means configured to collate the stored check conditions with the data for checking conditions obtained from the RFID chip so that a check alarm can be output based on the collation result,

the second data display means is a touch panel which also receives an entry operation, and

the chemical liquid injector is configured to display at least some of the various types of data obtained from said RFID chip at least on the second display means, and to allow an operator adjusting the operation based on the data obtained from the RFID chip by using the touch panel.

14. A liquid warmer in the chemical liquid injection system according to claim 12, comprising:

an RFID reader for obtaining the various types of data recorded on the RFID chip; and

an operation control means for performing a predetermined operation in accordance with at least some of the various types of obtained data.

15. The chemical liquid injection system according to claim 1, said chemical liquid injector automatically moves the liquid injection mechanism forward to a position for holding the piston member when the chemical liquid injector detects the mounting of the liquid syringe by detecting the RFID chip with the RFID reader.

16. The chemical liquid injection system according to claim 1, wherein the various types of data include expiration data of a liquid filled in said liquid syringe,

said operation control means further comprises an alarm outputting means configured to output the check alarm,

said data storing means stores the current date and time as the check conditions,

said data collating means collates the stored current date and time with the expiration data obtained from the RFID chip, and

said alarm outputting means causes at least the second data display means to output the check alarm when the current date and time is after the expiration date.

17. The chemical liquid injection system according to claim 1, further comprising other medical device connected to the chemical liquid injector through a communication network, and wherein

the chemical liquid injector transmits information detected by the chemical liquid injector to the other medical device and the other medical device uses the information for operation of the other medical device.

18. The chemical liquid injection system according to claim 17, wherein the information transmitted from the chemical liquid injector to the other medical device is information which is detected trough a communication between the RFID chip and the RFID reader.

19. The chemical liquid injection system according to claim 17, wherein the other medical device is a diagnostic imaging apparatus.