WO2007116864A1 - Medicinal-liquid injection system - Google Patents

Medicinal-liquid injection system Download PDF

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Publication number
WO2007116864A1
WO2007116864A1 PCT/JP2007/057412 JP2007057412W WO2007116864A1 WO 2007116864 A1 WO2007116864 A1 WO 2007116864A1 JP 2007057412 W JP2007057412 W JP 2007057412W WO 2007116864 A1 WO2007116864 A1 WO 2007116864A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
liquid
member
sheet
holding
Prior art date
Application number
PCT/JP2007/057412
Other languages
French (fr)
Japanese (ja)
Inventor
Shigeru Nemoto
Masahiro Sakakibara
Original Assignee
Nemoto Kyorindo Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2006-104618 priority Critical
Priority to JP2006104618 priority
Application filed by Nemoto Kyorindo Co., Ltd. filed Critical Nemoto Kyorindo Co., Ltd.
Publication of WO2007116864A1 publication Critical patent/WO2007116864A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/007Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests for contrast media
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546Front-loading type injectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/35Communication
    • A61M2205/3546Range
    • A61M2205/3569Range sublocal, e.g. between console and disposable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/35Communication
    • A61M2205/3576Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
    • A61M2205/3592Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using telemetric means, e.g. radio or optical transmission
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/60General characteristics of the apparatus with identification means
    • A61M2205/6054Magnetic identification systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1456Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons 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

An RFID tag (230) is attached to the left side or the right side of a cylinder body (211) of a medicinal-liquid syringe (200). A medicinal-liquid injection device (100) has a body holding member (114) made of metal and holding the cylinder body (211) on its upper surface, and an RFID reader (130) is placed on the lower surface of the body holding member (114). A holding recess (115) for holding the cylinder body (211) is formed in the body holding member (114), and a through-hole (135) is formed in the holding recess (115). A first antenna sheet (131) is inserted in the through-hole (135). One end of the first antenna sheet (131) is positioned on the upper surface of the holding recess (115), and the other end faces the RFID reader (130). Second and third antenna sheets (132, 133) are connected to the one end of the first sheet antenna (131), and the portions other than the one end are shielded by an electromagnetic shielding sheet (138).

Description

Specification

Chemical liquid injection system

Technical field

[0001] The present invention relates to a liquid injection system for injecting a chemical liquid syringe into a subject in liquid injector, in particular, CT (Computed

Fluoroscopic image fluoroscopic imaging apparatus such as Tomography) scanners relates to liquid injection system for injecting a contrast medium into the subject being imaged.

BACKGROUND

[0002] Currently, as the diagnostic imaging apparatus for imaging a fluoroscopic image of the subject, CT scanners, MRI (M agnetic Resonance Imaging) instrumentation, PET (Positron Emission Tomography) instrumentation, ultrasonic wave diagnostic apparatus, CT angiography apparatus, MRA ( MR

Angio) apparatus, and the like. When using the diagnostic imaging device as described above, may be inject the liquid, such as contrast media or saline to a subject liquid injector for automatically performing the injection be practically! /, Ru .

[0003] Such liquid injector has, for example, a piston driving mechanism and the like driving motor Ya slider mechanism, liquid syringe is removably mounted. Liquid syringe typically has a cylinder member and a piston member, the piston member is inserted slide freely in the cylinder member.

[0004] More specifically, the cylinder member has a cylindrical cylinder body, with the conduit portion to the occluded front center is formed, the rear end is opened. The rear end outer periphery of the cylinder body has an annular cylinder flange is formed, the piston member inside the rear end opening force is 揷入, Ru.

[0005] Such liquid syringe, is prefilled with the refill type. Prefilled liquid syringe is chemical in the cylinder member whole is filled is shipped in a state of being sealed with packing material. Afterloading liquid syringe is desired liquid medicine is filled in the sheet cylinder member by the user. In the following for simplicity of explanation, the liquid syringe is described on the assumption that it is a flop refill de type. [0006] When injecting a chemical liquid syringe as described above in a subject, the operator prepares a liquid syringe suitable chemical solution filled, the packaging material mosquitoes also take out the liquid syringe. When linked to the subject the liquid syringe with extension tube attached to the chemical liquid injector, the cylinder flange is held by a flange hold member. In this state, liquid injector, since pushing the piston member into the cylinder member with the piston driving mechanism in response to a Jo Tokoro operation, will this by the chemical solution is injected into the drug solution Shirinjika ゝ Luo subject.

[0007] In that case, the operator determines and injection rate and injection amount in consideration of the kind of the drug solution, by entering it into the liquid injector, the liquid injector in response to the input data drug solution It is injected into the subject. For example, since if a contrast medium is injected as a liquid medicine imaging of the subject changes, good fluoroscopic image is to be captured by fluoroscopic imaging device.

[0008] Note that the liquid injector is products capable of injecting saline to a subject with a contrast agent. In that case, the operator inputs to the liquid injector such as with the injection rate and injection amount to enter the saline in conjunction with the completion of injection of the contrast agent Note desired. Then, liquid injector this is after injecting a contrast medium in response to the input data to the subject, also injected automatically saline. Therefore, and reducing the consumption of the contrast medium to boost contrast medium with saline, it is possible to reduce artifacts with saline.

[0009] Incidentally, the contrast agent force liquid injector is a high viscosity, it is possible to push the piston member into the cylinder member of the liquid syringe at high pressure, is suitable for injection of the contrast agent. However, in order to push the piston member at high pressure into the cylinder member, it is also necessary to hold the cylinder member strength to a solid.

[0010] Therefore, in the liquid injector of the present applicant has implemented has a pair of metallic flange holding members, freely opening and closing the flange holding members in the body holding member made of metal We are supporting. The body holding member is formed with a holding recess on the upper surface, for holding a cylinder body that is inserted upwardly mosquito ゝ et at the holding recess. Pair of flange holding member is held by slits formed on opposed inner surface, and a left portion and a right portion of the cylinder flange of the liquid syringe inserted from above in an open state, held in the closed state.

[0011] Incidentally, the liquid injector to hold the cylinder flange with closable pair of flange holding members as are filed in various structures by the applicant (e.g., see Patent Document 1-5).

Patent Document 1: JP 2004- No. 154238

Patent Document 2: JP 2004- No. 154239

Patent Document 3: JP 2004- No. 187849

Patent Document 4: JP 2004 - No. 243009

Patent Document 5: JP 2004 - No. 290454

In chemical liquid injector as described above, by metallic flange holding members since the cylinder flange of the liquid syringe can be held firmly, the cylinder member of the liquid syringe of the piston member is pushed at high pressure high viscosity contrast agent such as the are possible and good injection child to the subject. Moreover, since the openable flange holding member is supported by the body holding member made of metal, also act great deal of stress on the liquid syringe forces the flange holding member, for example, damaged or deformed body holding member that it may be,.

[0012] However, the current general liquid syringe, to prevent such unnecessary rolling, is formed flat in a part of the outer peripheral surface of the cylindrical Dafuranji. The flat portion is normally is formed into a shape formed by cutting the outer peripheral surface of a circular cylinder Dafuranji partially linearly formed in parallel with such a pair at opposite positions of the outer peripheral surface of the sheet cylinder flange ing. Wherein, the liquid injector described above, and is configured circular portion is not a flat portion of the cylinder flange to hold in the flange retained member. Therefore, the worker needs to be held by the flange holding member cylinder flange at the position of the circular-shaped portion.

[0013] However, even in a state where the flange holding member holds the cylinder flange at the position of the flat portion, appearance looks like liquid syringe is properly held in the chemical liquid injector. In this case, since the flange holding member is reduced the area for holding the cylinder flange, there is a possibility that the piston member is damaged pushed by the cylinder flange at high pressure into the cylinder member.

[0014] In addition, since the current in some liquid syringe one of the pair of the flat portions of the cylinder flange is stipulated so as to face upward, the cylinder flange in this case is held in the flange holding members in the circular portion also, when a defect occurs up-and-down direction of the liquid syringe is in the upside.

[0015] For example, in chemical liquid injection system out gun as this application manpower No. 2004- No. 110853 (WO2005Z097232A1), when the transparent chemical is viewed from above side via a Ru cylinder member is filled a predetermined shape become symbols are labeled is divided into the inner surface of the holding recess of the lower surface and the body holding member of the cylinder member.

[0016] In this chemical liquid injection system, only when liquid syringe the drug solution is filled is properly mounted on chemical liquid injector, symbols are visible above force of the cylinder member as a predetermined shape. The visual, liquid syringe can be confirmed and it is properly retained, and that the drug solution is filled into the cylinder member, both at once.

[0017] However, in such a chemical liquid injection system, the cylinder flange be held on the flange holding member circular portion, the vertical liquid syringe has a upside, liquid syringe is properly held being, and chemical liquid cylinder member can not be confirmed either by being filled.

[0018] Further 〖this, in liquid injector as described above, but you inject the liquid from the liquid syringe into a subject, must force the operator to inject the proper chemical solution to select the appropriate liquid syringe S is there. However, liquid syringe for appearance be different types of drug solution have identical or similar product, the operator in an incorrect, the liquid syringe of the chemical there is a possibility 'of which mounted on chemical liquid injector.

[0019] Also, sometimes the product not relevant products as liquid syringe is used, sometimes the breakdown voltage which performance medical accidents occur because not appropriate. Furthermore, liquid syringes of Purefirudota Eve, but are discarded by use of a time to prevent such infections, the current liquid injector is unable to prevent the once liquid syringe used is used again .

[0020] Furthermore, it is necessary to enter and correspondingly NOTE ON velocity and total injection amount in the chemical and liquid syringe to be used in chemical liquid injector as described above. However, this work is adept complicated V, Do, it is difficult for the worker, Do not be appropriate!, Not numerical unable to prevent the is input operation. In particular, since the concentration of active ingredient in the present contrast agents is products that differ up to several times, so that when not considered it appropriate amount of several times or a fraction of the contrast medium is injected.

[0021] Similarly, depending on the imaging part and the body weight of the subject, may enter data into the liquid medicine inlet device, such as the infusion rate of the drug solution is needed to prevent such work also troublesome typo can not. In particular, the Applicant has filed that can improve the contrast effect by varying the infusion rate of contrast medium (JP 2004- 113475 JP), and inputs such a variable patterns in liquid injector it is not easy.

Disclosure of the Invention

[0022] The present invention has been made in view of the problems as described above, the flange holding member is appropriately held liquid syringe, Do, automatically prevent the piston drive mechanism is driven in a state and to provide a chemical liquid injection system as possible.

[0023] liquid injection system of the present invention, and a liquid syringe and a chemical liquid injector! /, Ru. Liquid syringe includes a cylinder flange at a rear end outer periphery of the cylinder body is formed to chromatic and Ru cylinder member and a piston member which is inserted freely behind force sliding in the cylinder member. Liquid injector injects drug solution into the subject pushes the piston member into the cylinder member of the liquid syringe.

[0024] liquid syringe is RFID tag is mounted on the outer peripheral surface of the cylinder body!, Ru. RFID tag includes a circuit chip has a loop antenna of a planar shape which is connected to the circuit chip to wirelessly transmit recorded data by electromagnetic induction.

[0025] liquid injector includes a body holding member, a flange holding member, a piston driving mechanism, RFID rie Da, the operation control means has an antenna sheet, and the electromagnetic shielding sheet. Body retained member is made of metal, held in the holding recess a cylinder body that is inserted from above. Flange holding member is made of metal, it is supported on the body holding member to hold the cylinder flange to be inserted from above. Piston drive mechanism pushes the piston member into the cylinder member held together with the cylinder flange. RFID reader wirelessly received by electromagnetic induction the recording data of the RFID tag. Operation control means, in response to wireless reception of print data for controlling the operation of piston driving mechanism. The antenna sheet has a loop antenna of elongated shape. Electromagnetic shielding sheet blocks the electromagnetic induction.

[0026] Then, according to the first aspect of the present invention, RFID tag, the position of one of the left and right of the cylinder member held in the body holding member in a particular rotational position location of liquid syringe are arranged, the body holding member is formed with a through hole penetrating from the outer surface of the holding recess to the inner surface. Other with RFID reader, the outer surface of the holding recess, which is arranged at a position adjacent to the through-hole, a first antenna sheet being 揷通 the through hole has one end disposed on the bottom surface of the holding recess end faces the RFID reader. Further, the second antenna sheet over bets are arranged longitudinally in correspondence with the RFID tag of liquid syringe in parallel to the lateral direction to one of the inner surface left and the inner surface right hold recess. One end of the second antenna sheet is opposed to one end of the first antenna sheet, the upper surface of the other end portion of the other end of the first antenna sheet of the second antenna sheet is shielded by the electromagnetic shielding sheet ing.

[0027] According to the second aspect of the present invention, RFID tag is disposed to a position of the side of the cylinder member held in the body holding member in a particular rotational position location of the liquid syringe, further a second antenna sheet and the third antenna sheet, the longitudinal direction in the lateral direction and the flat line state, is disposed on the inner surface of the holding recess. The second antenna sheet is disposed on the inner surface left holding recess, the right end that are opposite to one end of the first antenna sheet. Third antenna sheet is disposed on the inner surface right holding recess, the left end opposite the one end of the first antenna sheet, Ru. The upper surface of one end and the left end than the portion of the second en Tenashito rightmost other parts of the third antenna sheet of the first antenna sheet is shielded by the electromagnetic shielding sheet, Ru.

[0028] Thus, in chemical liquid injection system of the present invention, only when the liquid syringe is appropriately mounted on chemical liquid injector, it is possible to electromagnetic induction between the RFID tag and the RFID reader via the plurality of antenna sheet.

[0029] RFID tags and the antenna sheet as described above, for example, it is possible to have been made form a substantially rectangular sheet, the antenna sheet is equivalent to the RFI D tag circuit chip is omitted It can be formed as a structure. Such RFID Taguo and the antenna sheet is approved as a communication device for a unified standard has been mass-produced as a ready-made.

[0030] In addition, various means referred to in the present invention applied, it is formed so as to realize its function!, Is may be, for example, dedicated hardware that performs a predetermined function, the predetermined function by Konpyutapu program data processing apparatus, predetermined functions are implemented in the data processing apparatus by a computer program can be implemented as a combination thereof, etc. [0031] Further, various components referred to in the present invention were individually independent the multiple components Nag need the presence are formed as a single member, that one component is formed by a plurality of members, at some certain components other components lying, and a portion of the part and other components of a construction element is overlapped, it is possible Rukoto, etc. also.

[0032] Furthermore, although the present invention defines the direction of the horizontal and vertical front and rear, which are those defined conveniently for easy description of the relative relationship between the components of the present invention, the actual present invention It does not limit the direction during use and during production when Hodokosuru. Further, the antenna sheet referred to in the present invention, one end and the other end, the left end, right end, and is means a moiety of the outermost edge of its longitudinal extent arbitrary, for example, portions of the substantially square good at.

[0033] In chemical liquid injection system of the present invention, only when the liquid syringe is appropriately mounted on chemical liquid injector, the electromagnetic induction between the RFID tag and the RFID reader via the plurality of antenna sheet is possible, liquid injection device liquid syringe can either simple or one reliably detected is properly attached to.

BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG. 1 is a schematic front view of a main part showing a state in which the liquid syringe is mounted on the injection head of the liquid injector according to an embodiment of the present invention.

[Figure 2] liquid syringe into injection head is a perspective view showing a state mounted.

Is a perspective view showing an appearance of FIG. 3 the liquid injector.

4 is a perspective view showing an appearance of a CT scanner is a diagnostic imaging apparatus.

[5] liquid syringe to the injection head Ru schematic sectional view der of the main part showing a state to be mounted.

6 is an exploded perspective view showing the assembly structure of a main portion of the injection head.

7 is a schematic perspective view showing an outer appearance of an RFID tag.

8 is a block diagram showing a circuit structure of a chemical liquid injection system.

9 is a block diagram showing the logical structure of a liquid injector.

Is a flowchart showing a first half of the processing operation of FIG. 10 liquid injector.

11 is a flowchart showing a second half of the processing operation of the chemical liquid injector.

It is a flow chart illustrating the FIG. 12] CT scanner of the processing operation.圆 13] is an exploded perspective view showing the assembly structure of a main portion of the injection head of the first modification example.

14 is a perspective view showing the injection head of the second modification.

圆 15] liquid syringe to the injection head in the third modification is a perspective view showing a state mounted with the cylinder adapter.

DESCRIPTION OF SYMBOLS

100 liquid injector

110, 170 injection head

114, 174 body holding member

115 holding recess

116 piston driving mechanism

121, 173 flange holding 咅附

130 RFID reader

131 the first antenna sheet

132 second antenna sheet

133 third antenna sheet

135 through-hole

137 ferrite sheet

138 electromagnetic shielding sheet

140 computer unit

150 operation control means

151 data storage means

152 data matching unit

153 warning output means

154 data storage means

156 data holding means

157 display control means

158 injection control means

171 display panel Norre 200 liquid syringe

210 cylinder member

211 cylinder body

213 cylinder flange

220 piston member

230 RFID tag

232 circuit chip

233 tag antenna

300 CT scanner

400 cylinder adapter

1000 chemical liquid injection system

BEST MODE FOR CARRYING OUT THE INVENTION

[0036] [Configuration of Embodiment]

Embodiments of the present invention with reference to the drawings hereinafter. Liquid injection system 1000 of the present embodiment, as shown in FIGS. 1 to 4, chemical liquid injector 100, liquid syringe 200, CT scanner 300 has a a fluoroscopic imaging apparatus, described later in detail but captures a subject (not shown) mosquito ゝ et fluoroscopic image of injecting contrast agents which chemical.

[0037] CT scanner 300, as shown in FIGS. 4 and 8, and a diagnostic imaging unit 301 and imaging control unit 302. The diagnostic imaging unit 301 and imaging control unit 302 are wire connected by a communications network 303. Fluoroscopic imaging unit 301 captures a fluoroscopic image image from the subject, the imaging control unit 302 controls the operation of diagnostic imaging unit 301.

[0038] liquid syringe 200, as shown in FIG. 2, which have a cylinder member 210 and piston member 220, the piston member 220 is slidably inserted into the cylinder member 210. Siri Sunda member 210 has a cylindrical cylinder body 211, the conduit 212 is formed in the occluded front end of the cylinder body 211.

[0039] the rear end of the cylinder body 211 of cylinder member 210 is opened, the piston member 220 is inserted into the cylinder da body 211 from the opening. Cylinder member 210 has an annular cylinder flange 213 formed on the rear end outer periphery of the cylindrical da body 211, piston member 220, an annular piston which is formed on the rear end outer periphery of the piston body 221 and it has a flange 222.

[0040] In addition, the cylinder member 210 is formed of a resin is nonconductive and nonmagnetic material, for example, its thickness is about 1.5Mm~2.0Mm. The liquid injection system 1000 of the present embodiment, at least a portion of the liquid syringe 200 to be used is prefilled. Liquid syringe 200 of Purefu Irudotaipu is shipped in a state in which liquid medicine is filled in the cylinder member 210.

RFID tag 230 is attached to the [0041] cylinder member 210 of liquid syringe 200. The RFID tag 230, for that liquid syringe 200, the name, prefilled or after-filled data Eve of identification data, the identification data for each individual volume, the withstand voltage of the cylinder member 210, the inner diameter of the cylindrical da member 210, the piston member 220 various data of stroke, such as that that has been recorded.

[0042] Furthermore, when the liquid syringe 200 is prefilled, Its RFID tag 230 relates to a chemical solution is filled, the name, components, viscosity, expiration date, identification data, such as whether a or a CT MR, etc. It has also been recorded of the various types of data. Also, in the case of the prefilled liquid syringe 200 has chemical liquid contrast agent filled in, in its RFID tag 230, the variable pattern for changing the injection rate with time, such as also being recorded as required.

[0043] RFID tag 230, as shown in FIG. 7 has a 榭脂 sheet 231 of elongated, circuit chip 232 near one end of that is sealed. Further, the 榭脂 sheet 231, Tagua antenna 233 be formed in the printed circuit as a loop antenna elongated in the planar shape V, Ru. Tag antenna 233 is connected to the circuit chip 232, Ru.

[0044] RFID tag 230, for example, is formed on the white surface of 榭脂 sheet 231, it is possible to print various information on the table face. Adhesive on the rear surface of 榭脂 sheet 231 (not shown) is applied, RFID tag 230 may be affixed to the outer peripheral surface of the cylinder member 210 by the adhesive.

[0045] liquid syringe 200, as shown in FIGS. 1 and 2, a pair of flat portions 215 at opposite positions of the circular outer peripheral surface 214 of the cylinder flange 213 are formed in parallel, by connexion symmetrical thereto it is formed in a vertically symmetrical structure with it. Then, with respect to liquid syringe 200 having such a structure, RFID tag 230, with its longitudinal direction coincides with the Jikukokorokata direction of the cylinder member 210 is left or right towards the outer peripheral surface of the cylinder body 211 It is instrumentation wear to the side.

[0046] The present embodiment of liquid injector 100, as shown in FIG. 3, the injection head 110, the injection head 1 10 and a injection control unit 101 that is configured separately, they a communication cable 102 connected by wire. Injection head 110 drives liquid syringe 200 mounted to inject the liquid into test subjects, injection control unit 101 controls the operation of the injection head 110.

[0047] injection head 110 is mounted through the movable arm 112 to the upper end of caster stand 111, as shown in FIG. 2, liquid syringe 200 upward force is also detachably mounted. Injection head 110 has a head housing 113. Head housing 113 has been formed entirely of 榭脂, as shown in FIGS. 2 and 5, are formed at the front top only metallic body holding member 114, Ru.

More specifically [0048], the body holding member 114 is formed of a metal of a high strength non-magnetic material such as aluminum alloy, in its upper surface, the cylinder body 211 to be upward force ゝ Luo 揷入holding recess 115 for holding, for example, it is formed into a semi-cylindrical shape having a diameter of about 6 cm. Cylinder holding mechanism 120 is coupled to the rear end of the body holding member 114. Cylinder holding mechanism 120 is formed of a high strength metal such as a stainless steel alloy.

[0049] cylinder holding mechanism 120 has a pair of flange holding member 121. Flange holding member 121 of the left and right pair is that has a fixed holding member 122 and the movable holding member 123. Fixed holding member 122 is fixed to the rear end of the body holding member 114, the movable holding member 123 is openably supported in the lateral direction at the rear end of the body holding member 114. Solid to a constant holding member 122 and the movable holding member 123, arc-shaped retaining slits are formed on the inner surface, there cylinder flange 213 of liquid syringe 200 is engaged.

[0050] As shown in FIG. 1, a cylinder holding mechanism 120, as shown in the force diagram 1 (b) that can hold regardless of the angle of rotation of the cylinder flange 213, flat portions 215 are located above and below holding the cylinder flange 213 is requested the operator in the state. When the cylinder flange 213 of liquid syringe 200 in a particular rotational position around the axis is held in Siri Sunda holding mechanism 120, 〖this to be positioned to the left or right is laterally RFI D tag 230 is mounted on the cylinder member 210.

The rear of the [0051] injection head 110, piston driving mechanism 116 is mounted. Piston driving mechanism 116 is slid in the longitudinal direction while holding the piston flange 222 of liquid syringe 200. Piston driving mechanism 116, as shown in FIG. 8, AC (Alternating Current) driving motor 117 such as motors has as a driving source, a ball screw mechanism (not shown), etc. by the piston member 220 slides so moved.

[0052] Further, it is built also the load cell 118 to the piston driving mechanism 116. The load cell 118 detects the pressure that presses the piston member 220. Incidentally, inside the left and right of the head housing 113 is disposed an elongated metal frame (not shown) in the longitudinal direction, and the piston driving mechanism 116 and the body holding member 114 are connected by the metal frame, Ru.

[0053] chemical liquid injector 100 of the embodiment, for example, a reader antenna (not shown) is formed as a chip component mounted on the surface, Ru has an RFID reader 130, Ru. RFID reader 1 30, as shown in FIG. 5, is disposed on the lower surface of the body holding member 115 as the reader antenna is positioned on the lower side.

[0054] Further, liquid injector 100 of this embodiment, the first has a third antenna sheet 131 to 133, these antenna sheet 131 to 133, RFI D tag circuit chip 232 is omitted and it has a structure corresponding to 230. That is, the antenna sheet 131 to 133, a loop antenna of a planar shape 榭脂 sheet elongated are formed in an elongated shape in the printed wiring, similar to the RFID tag 230 is mass-produced as a ready-made. Such a Ann Tenashito 131-133 and RFID tag 230, for example, are made form the rectangular 18 mm X 50 mm, and the like MM tag (product name) for wireless communication with 13.56MHz frequency.

[0055] Then, in liquid injector 100 of the present embodiment, oblong holes 135 penetrating the holding recess 115 in the thickness direction from the outer surface (lower surface) to the inner surface (bottom surface) of the hold recessed portions 115 of the body holding member 114 It is formed. The first antenna sheet 131 is 揷通 in the through hole 135. One end located above the through hole 135 of the first antenna sheet 131 is music folded backwards, which will be described later in detail, through the ferrite sheet over preparative 137 is a sheet-shaped high-permeability magnetic material It is disposed on the bottom surface of the holding recess 115 Te, Ru. [0056] Further, the other end which is located from the through hole 135 of the first antenna sheet 131 downwardly are songs folded forward in close contact with the lower surface of the RFID reader 130. Incidentally, RFID rie da 130 as described above, since the reader antenna is positioned on the lower side, well are electromagnetically coupled in parallel to oppose the other end of the reader antenna and the first antenna sheet 131 ing.

[0057] Further, the second antenna sheet 132, the longitudinal direction is attached to the inner surface left holding recess 115 in parallel to the lateral direction, the outermost edge portion of the right end of the first antenna sheet 13 1 It is contacted to the upper left edge portion of the one end. Third antenna sheet 133, the longitudinal direction is attached to the inner surface right holding recess 115 in parallel to the lateral direction, the outermost edge of the left end right outer edge of the one end of the first antenna sheet 131 It is contacted to from above.

[0058] In addition, the ferrite sheet 137 described above is formed into an elongated rectangular shape in the lateral direction, as shown in FIGS. 1 and 6, the first end with the second and third antenna sheet 131 of the antenna sheet 132, 133 are also placed on the bottom surface of the holding recess 115 via the ferrite sheet 137.

[0059] Further, since the first to third antenna electromagnetic shielding sheet 138 top to a predetermined fixed form shaped sheets 131 to 133 arranged as described above is arranged, the electromagnetic shielding sheet 138, first the upper surface of one end and the left end than the portion and the right end than the portion of the third antenna sheet 133 of the second antenna sheet 132 of the antenna sheet 131 is shielded. The electromagnetic shielding sectional sheet 138, agents that block the electromagnetic induction, specifically, can be formed of aluminum or ferritic any metal.

[0060] In liquid injector 100 of the present embodiment, as shown in FIG. 7, since the loop antenna in response to even a sheet shape en Tenashito 131-133 Like the RFID tag 230 (not shown) is formed by Rukoto end of the first third of the antenna sheet 131 to 133 are in close contact as described above, the second and third antenna sheet 132, 133 are electromagnetically coupled to the first antenna sheet 131 .

[0061] In liquid injector 100 of the present embodiment, since the first size and shape of the relationship between the third antenna sheet 131 to 133 and the body holding member 114, as shown in FIG. 1, is mounted on injection head 110 and the left side of the liquid syringe 200, with the left end of you have not been shielded by the electromagnetic shielding sheet 138 second antenna sheet 132 is positioned to the right of liquid syringe 200, a third that is not shielded by the electromagnetic shielding sheet 138 the right end of the antenna sheet 133 is you position.

[0062] Therefore, when the detail liquid syringe 200 is appropriately mounted to the force injection head 110 to be described later, the RFID tag 230 to the right end of the left or the third antenna Nashito 133 of the second antenna sheet 132 It is well electromagnetically coupled in parallel to oppose. The second and third antenna sheet 132, 133 are electromagnetically coupled with the RFID reader 1 30 via the first antenna sheet 131 as described above. Therefore, when the RFID tag 230 is electromagnetically coupled to the second or third § antenna sheet 132, 133 as described above will be an RFID tag 230 and RFID reader 130 Togaden magnetostatic coupling.

[0063] Incidentally, FIGS. 1 and 5 for a schematic view, various types of sheets 131 to 133 located in the bottom surface of the holding recess 115 of the body holding member 114, 137, 138 actually force is projected is this et sheets 131-133, 137, the thickness of 138 is negligible and does not like to inhibit the attachment of liquid syringe 200 to the holding recess 115. Therefore, the body holding member 114 〖while the outer peripheral surface surface forces liquid syringe 200 to actually force is free of electromagnetic shielding sheet 138 in which the outer peripheral surface is in close contact with the holding recess 115 of liquid syringe 200 in FIG. 1 It is this hold.

[0064] are connected by a communication cable 102 and injection head 110 of the structure described above!, Ru injection control unit 101, as shown in FIG. 8, the computer unit 140 is built, the CT scan Kiyana 300 connected by wire with the imaging control unit 302 both communication network 304.

[0065] the injection control unit 101, as shown in FIG. 3, the operation panel 103, liquid crystal display 104 is a display device, speaker unit 105, etc. are arranged on the front surface of the main body housing 106, a separate controller unit 107 is a wired connection in the connection cable 108.

[0066] chemical liquid injector 100 of the embodiment, as shown in FIG. 8, various devices such as an RFID reader 130 described above is connected to the computer unit 140, the computer Interview - Tsu DOO 140 integrates various devices Control. Computer unit 140 is a so-called Wanchi Ppumaikon, CPU (Central Processing Unit) 141, ROM (Read Only Memory) 142, RAM (Random

Access Memory) 143, l / F (Interface) 144, and a hardware like. Konbyu Tayunitto 140, the ROM142 suitable computer program in the information storage medium, such as and the like are implemented in firmware, CPU 141 in response to the computer program to execute various processing operations.

[0067] chemical liquid injector 100 of the embodiment, by a computer unit 140 operates in response to a computer pro Dara arm which is mounted as described above, as shown in FIG. 9, the operation control unit 150, the It is logically have. Operation control means 150, data storage means 151, data collating means 152, alarm output unit 153, data accumulating means 154, data holding means 156, display control unit 157, the injection control means 158, various means of equal logically Yes are doing

[0068] Operation control means 150 corresponds to the function CPU141 to perform predetermined operations in response from that Konpyutapu program and the RFID tag 230 that is mounted on a wirelessly received recorded data, etc. ROM 142.

[0069] Data storage means 151, CPU 141 corresponds to such a data storage area recognized by RAM 143, stores a predetermined confirmation conditions. Data matching unit 152 collates the wirelessly received recorded data from the confirmation conditions and the RFID tag 230 that is stored. Warning output unit 153, in response to the verification result outputting the check alarm.

More specifically [0070] The RAM 143, the identification data of liquid syringe 200 which may be used is registered as confirmed condition, Ru. When the recording data from the RFID tag 230 of liquid syringe 200 with RFID reader 130 is wirelessly received identification data of liquid syringe 200 which is the radio reception is collated with the identification data registered in RAM 143.

[0071] When the wireless received identification data is not registered, "This product is not registered as a syringe that can be used, be sure to check whether it is possible use," guidance message is confirmation of such is the sound from speaker unit 105 while being displayed on the liquid crystal display 104 as a warning.

[0072] Further, the RAM 143, are held are updated current time every day as a check condition, when the expiration date from the RFID tag 230 of liquid syringe 200 is wirelessly received, the expiration date and the current date and time that is collated that. When the current date and time exceeds the expiration date, "This product is past the expiration date, trout. New, be sure to use the product," such as the guidance message is displayed on the liquid crystal display 104 as a confirmation warning output by voice at Rutotomoni speaker unit 105.

[0073] Furthermore, the prefilled liquid syringe 200, since the manufacturing number of each individual is recorded in the RFID tag 230, the data storage unit 154 is mounted on injection head 110 injecting operation is performed prefilled stores production number of liquid syringe 200

[0074] In this case, data collating means 152 collates the serial number and the RFID tag 230 that is stored and wirelessly received production number, the warning output unit 153, the collated production numbers match, "the prefilled syringes been used in the past, masu. new, guidance message such as ヽ "Please use the product to the sound output from the speaker unit 105 causes displayed on the liquid crystal display 104 as a confirmation warning.

[0075] Data holding means 156 holds the recording data wirelessly received from RFID tag 230. Display control means 157 displays the recording data held in the liquid crystal display 104. Injection control means 158, corresponding to the recorded data retained for controlling the operation of piston driving mechanism 116.

More specifically [0076] to the RFID tag 230 of liquid syringe 200, and various data such as names and pressure and volume of the liquid syringe 200, the name and component drug solution filled in the liquid syringe 200 because the various data such as and expiration date are recorded, these records data is displayed on the liquid crystal display 104 is temporarily stored in RAM 143.

[0077] Further, when the RFID tag 230 of liquid syringe 200 control data for piston driving mechanism 116 has been recorded, the control data is held in the RAM 143. CPU141 is correspondingly controls the operation of piston driving mechanism 116 to control the data held. For example, if the variable pattern for changing the course of the injection rate of the contrast medium in the RFID tag 230 of liquid syringe 200 time has been recorded, the operation speed over time of the variable pattern corresponding CPU141 piston driving mechanism 116 changing.

[0078] Furthermore, when 而圧 the RFID tag 230 of liquid syringe 200 is recorded, CPU 141, in response to the detected pressure of the load cell 118, the piston drive mechanism so as not to exceed the withstand voltage held in the RAM 143 116 to control the operation of the. Further, when the capacity RFID tag 2 30 liquid syringe 200 is recorded, CPU 141 controls the operation of piston driving mechanism 116 in response to the capacity held in the RAM 143.

[0079] Various means of liquid injector 100 as described above, the force that principal realized by utilizing the liquid crystal display 104 of any Hardware A necessary the resource and stored in the information storage medium body such ROM142 is realized by the CPU141 is hardware corresponds to the computer program to function.

[0080] Such a computer program, for example, when recording data in the RFID reader 130 from RFID tag 230 is wirelessly received, recorded data wirelessly received from the stored Ru check condition and RFID tags 230, etc. RAM143 DOO matching the, that in response to the comparison result and outputs the check alarm with a display of the liquid crystal display 104, by storing the serial number of liquid syringe 200 which injection operation is mounted is performed like in RAM 143, a child collating the wirelessly received production number from the manufacturing number and the RFID tag 230 that are the memorize, also be output from the check alarm with a display of the liquid crystal display 104 in response to the comparison result, the RFID tag recorded data wirelessly received from 230 be held like a RAM 143, thereby displaying the recorded data held in the liquid crystal display 104, and held serial Controlling the operation of the recording data corresponding to the piston driving mechanism 116, it is stored the processing operation and the like in the information storage medium RAM143 such as software to be executed by the CPU141 and the like.

[0081] [Operation of Embodiment]

In the configuration as described above, when using the liquid injection system 1000 of the present embodiment, as shown in FIG. 4, injection head 110 of chemical liquid injector 100 is placed near imaging unit 301 of CT scanner 300, using such as liquid syringe 200 is prepared. The work artisan opens the movable holding member 123 of the injection head 110, there is mounted a liquid syringe 200 as the cylinder flange 213 is inserted into the holding recess 115, it closes the movable holding member 123.

[0082] At this time, since the liquid syringe 200 as described above has a Tan Taira portion 215 portion of a pair of cylinders flanges 213, as shown in FIG. 1 (b) and FIGS. 2 and 5, operator in the correct state where the flat portion 215 of the cylinder flange 213 are located up and down, to mount the chemical liquid syringe 200 to the liquid medicine inlet device 100.

[0083] Then, since the RFID tag 230 of liquid syringe 200 is positioned on the right hand left, good to either the faces parallel to the right edge of the second left or the third antenna sheet 132 of the antenna sheet 133 It will be electromagnetically coupled. In liquid injector 100 of the present embodiment, since the second and third antenna sheet 132, 133 are electromagnetically coupled to the RFI D reader 130 via the first antenna sheet 131, the second or third, as described above 3 antenna sheet 132, 133 and RFID tag 230 to the electromagnetic coupling will communicate wirelessly with RFID reader 130.

[0084] Then, liquid injector 100 of the present embodiment, as shown in FIG. 10, the medicine liquid syringe 200 is appropriately mounted on injection head 110 records data radio reception from RFID tag 230 by the RFID reader 130 When (step S1), the or force not the the check conditions registered in the received data and the R AM143 are aligned is determined by the computer unit 140 (step S 2).

[0085] As confirmation condition, since the identification data of liquid syringe 200 which may be used is registered, it is registered as the identification data is confirmed condition wirelessly received from RFID tag 230, and ヽ a, "the product available a not registered as a syringe, please verify available, the guidance message such as "is the sound from speaker unit 105 while being displayed on the liquid crystal display 104 as a confirmation warning (step S3).

[0086] For this reason, for example, will be its in the liquid injector 100 liquid syringe 200 and can not be used, and this confirmation that the you'll use, such as liquid syringe 200 in excess of the consumption time limit warning is output, a variety of medical mistakes can be effectively prevented. Further, when the identification data of liquid syringe 200 is aligned with the check conditions (step S2), and the production number registered from the RFID tag 230 wirelessly received production number and RAM143 are collated (step S5).

[0087] When the collated production numbers match, "This syringe has been used in the past. The new V, be sure to use the product! / ヽ" such as the guidance message is the LCD display 104 as a confirmation warning since the output in the speaker unit 105 (step S3), and waste should do liquid syringe 200 in a single use can be prevented such a simple and reliable medical malpractice used many times.

[0088] On the other hand, recorded data wirelessly received from RFID tag 230 suitable liquid syringe 200 to chemical liquid injector 100, for example, '~ (manufacturer) made of the contrast syringe - (name) is mounted beneath. serial number ~, chemical name ~, chemical type ~ capacity ~, breakdown voltage ~, because it is displayed on the LCD display 104 as such... "(step S6), and the operator various such liquid syringes 2 00 to use data can be confirmed easily and reliably.

[0089] Incidentally, the RFID tag 230, and various data to be displayed object, since the various data that is not subject is recorded, for example, whether the force is subject to the display for each its various data There is set a binary flag, liquid injector 100, recording data power which is wirelessly received from RFID tag 230 also displays the appropriate fraction.

[0090] Furthermore, the RFID tag 230 of liquid syringe 200 to the recording data wirelessly received to liquid injector 100 "breakdown voltage" and "capacity" and the like "variable pattern for changing the course of the injection rate of the contrast medium time" when the control data has been included, the control data is set in the RAM143 of Konbyu Tayunitto 140 (step S7). Set control data to the recorded data wirelessly received from RFID tag 230!, If there was a Chikaratsu, default control data is set.

[0091] After the chemical solution syringe 200 mounted on chemical liquid injector 100 as described above is connected to the subject like extension tube (not Shimese Figure), the work start is input operation to the operation panel 103 by the operator , the chemical liquid injector 100 detects this (step S8), and data transmission the operation start to the CT scanner 300 (step S 11).

[0092] As shown in FIG. 12, thus CT scanner 300 receives the data of the operation start from the chemical liquid injector 100 (step T2), executes the IMAGING operation and data back to the chemical liquid injector 100 to start work (step Τ8). Thus, the liquid injection system 1000 of the present embodiment, the image capturing of the CT scanner 300 follows the liquid injection of chemical liquid injector 100

[0093] In the chemical liquid injection system 1000 of the embodiment, as shown in FIGS. 10 and 12, in chemical liquid injector 100 in a ready state as described above (Step S8~S 10), CT scanner 3 00 If the imaging start is input operations even (step Tl), liquid injection of chemical liquid injector 100 follows the imaging of CT scanner 300 (step Τ4, T6~, S9, S18~). Thus, the liquid injection system 1000 of the present embodiment, it is possible to image the subject mosquitoes ゝ et fluoroscopic image contrast agent Ru is injected at an appropriate timing with accurate timing.

[0094] Then, liquid injector 100 of the present embodiment, as shown in FIG. 11, the case of executing the series of operations of liquid injection (step S18 to), the injection start force elapsed time is measured (Step-up S19), the operation of piston driving mechanism 116 is controlled in real time in response from the elapsed time and the RFID tag 230 and wirelessly received control data (step S22).

[0095] In addition, in liquid injector 100 of the present embodiment, for example, if the variable pattern for changing the course of the injection rate of the contrast medium in the RFID tag 2 30 liquid syringe 200 time has been recorded, corresponding to the variable pattern over time changing the operation speed of piston driving mechanism 116 and.

[0096] Accordingly, it is possible to reduce the optimum contrast level can be maintained favorably, physical burdens of the subject as a minimal required injection volume of the contrast medium. Yet, necessary to register the complex variable Notan in advance chemical liquid injector 100 Nag example, new easy to RFID tags 230 forces the liquid syringe 200 is also liquid injector with a variable pattern corresponding to the new forming shadow agent 100 it can be entered into.

[0097] Furthermore, when the piston driving mechanism 116 is driven as described above, the stress load cell 118 detects is received in real time to the computer unit 140 (step S20). And, the corresponding like to the inner diameter of the radio received viscosity Ya cylinder member 210 of liquid from the RFID tag 230, the injection pressure of the chemical liquid is calculated from the stress detected load cell 118 (step S21), and the injection pressure is RFID tag operation of bis tons drive mechanism 116 is controlled in real time so as to satisfy a wireless receiver pressure ranging from 230 (step S22).

[0098] Then, it is possible if so forced to stop with injection operation the injection pressure is output check alarm with an abnormal pressure (step S23), and prevent medical mistakes chemical is injected at an abnormal pressure. Also mosquito ゝ, in order to liquid injector 100 as described above to detect the pressure of the chemical solution, such as viscosity of the inner diameter and chemical Cylinders member 210 alone stress nag for pressing the piston member 220 of liquid syringe 200 force such various data in which various data is required are input to chemical liquid injector 100 by the RFID tag 230. Therefore, the operator monkey various data in liquid injector 100 for manual input complicated required to Kotonagu chemical injection pressure syringe every 200 each chemical liquid injector 100 is accurately detect child transgression the task of .

[0099] In the chemical liquid injection system 1000 of the embodiment, if the liquid syringe 200 in an inappropriate state flat portions 215 of cylinder flange 213 are located on the left and right are instrumentation wearing liquid injector 100, RFID tag 230 It will be located upward or downward. If the RFID tag 230 is located above, since the first not all the even parallel adjacent the third antenna sheet 131 to 133, never the RFID tag 230 and RFID reader 130 wirelessly communicates (Step-up Sl ).

[0100] On the other hand, as shown in FIG. 1 (a), if the RFID tag 230 is located below, the RFID tag 230 will be adjacent in parallel to the third antenna sheet 131 to 133 from the first. However, since at that position it is located the electromagnetic shielding sheet 13 8 between the RFID tag 230 and the antenna sheet 131 through 133, RFID tag 230 Nag is a child and the RFID tag 230 and the antenna sheet 131 to 133 are electromagnetically coupled and the RFID reader 130 is not able to wireless communication (step S1). Therefore, in liquid injector 100 of the present embodiment, the cylinder flange 213 by the flange holding member 120 ヽ a properly retained, and the state at the injection operation is started, that the cylinder member 210 is broken automatically it is possible to reliably prevent the.

[0101] Incidentally, even when the liquid syringe 200 is driven by piston driving mechanism 116 as described above, the RFID tag 230 is always detected by the RFID reader 130 (step S1 8). Then, before the injection operation is completed (step S32), if the above-mentioned detection is interrupted (step S18), and the injection operation by the piston driving mechanism 116 is stopped (step S28).

[0102] In addition, the audio output in the spin one power unit 105 along with the moth dance messages such as "Please check the mounting of .~ syringe has detected a syringe falling off" is displayed on the liquid crystal display 104 as a confirmation warning (step S26), the abnormality occurrence and discontinue infusion is data transmitted to the CT scan Kiyana 300 (step S25, S28).

[0103] CT scanners 300, an abnormality occurs when data received (step T10), the occurrence of abnormality is output as a check alarm with such guidance display (step T16), the operation stop when the data received (Step Tl 3), the imaging operation is stopped (step T18).

[0104] Thus, in chemical liquid injection system 1000 of the embodiment, liquid syringe 200 is appropriately held, Do, can automatically prevent the liquid injection is executed in the state, the drug solution in situ the liquid injection even when syringe 200 as also falling appropriate positions force can be automatically cancel the liquid injection.

[0105] and force also, mechanism for detecting the appropriate mounting of the thus liquid syringe 200 is formed of a RFID tag Ζ reader 230, 130 for transferring various data from liquid syringe 200 to chemical liquid injector 100 since, it is possible to detect the proper mounting of liquid syringe 200 with a simple structure without requiring such dedicated sensor mechanism.

[0106] In particular, when liquid syringe 200 is appropriately mounted on chemical liquid injector 100, antenna be located in any forces RFID tag 2 30 are optional or located mosquitoes ゝ left on the right side Nashito it can be electromagnetically coupled to the RFID reader 130 via 131-133.

[0107] Furthermore, the antenna sheet 131 to 133 for detecting this way the RFID tag 230 in the left and right both are off the shelf that are mass-produced with RFID tag 230, remodeling slit-shaped through-hole of the main body support member 114 it is only to form a 135. Therefore, liquid injector equipment 100 of the present embodiment has good productivity.

[0108] In addition, liquid injector 100 and CT scanner 300 of the present embodiment, or detected abnormality occurs in the Ready state mentioned above (Step S10, T3), or occurrence of abnormality is detected during the operation execution be (step S23, Τ9), together with the occurrence of abnormality is output (step S26, Τ16), stops the operation (step S28, Τ18).

[0109] Furthermore, since the abnormality occurred is also data transmission to the other (steps S25, Τ15), which at the other to which a data reception (step T10, S24), also occurrence of abnormality is output (Step-up T16 , S26) 0 in addition, since one of the operation stop is also data transmission to the other (step S2 7, T17), in other receives the data (step Tl 3, S31), stops the operation executed ( step T18, S28).

[0110] Incidentally, even when the operation stop is input operations to one (step S29, Tl l), along with its operation in the stop is executed (step S28, Τ18), since also transmitted to the other (step S27 , Τ17), even other receives the data (step Tl 3, S31), it stops the operation (step T18, S28).

[0111] Furthermore, even on the other hand when the operation completion is detected (step S32, T14), along with its operation completion is executed (step S33, Τ19), because the operation end is data transmitted to the other ( step S34, Τ20), even other receives the data (step T12, S31), the operation stop is performed (step T18, S28).

[0112] In liquid injector 100 of the present embodiment, when the injection operation is finished normally or abnormally as described above (step S33, S28), the radio received identification data from the RFID tag 230 of liquid syringe 200 is new It is registered in the RAM 143 as the confirmation conditions (step S 36).

[0113] In liquid injector 100 of the present embodiment, the third antenna sheet 132, 133 and one end and the second contact of the first antenna sheet 131, the holding recess 11 5 of the metal body supporting member 114 since it is arranged through the ferrite sheet 137, the lower side of the electromagnetic field from the first to third antenna sheet 1 31-133 is will pass through ferrite sheet 137, the RFID tag 2 30 and the antenna sheet 131 the electromagnetic coupling does not and this is inhibited in a metal body supporting member 114.

[0114] The tag antenna 233 of the RFID tag 230 of this embodiment, since it is formed as a loop antenna of elongated shape, communication performance to be curved in its longitudinal direction you extremely lowered. And then forces the liquid syringe 200 of the present embodiment, the length-side direction of the cylinder member 210 and the RFID tag 230 matches the tag antenna 233, longitudinally by simply being bent minutely in the lateral direction in not been bent, communication performance is good.

[0115] In addition, RF ID tag 230 RFID tag 230 as a force above which the communication performance is inhibited by the liquid than it is necessary to install in a state in which the longitudinal direction coincides with the cylinder member 210, cylinder member 210 liquid medicine is filled in! a ヽ, it is difficult and arranged child RFID tags 230 in position.

[0116] and then force, liquid syringe 200 of the present embodiment, since it is formed in a thick cylinder member 210 forces Sl.5mm~2.0mm about a charge amount, RFID tag 230 affixed to its surface cylinder can be satisfactorily wireless communication without being inhibited by the drug solution is filled into 210.

[0117] Modification of Embodiment]

The present invention allows various modifications without departing from the scope of the invention that Nag limited to the above embodiment. For example, liquid syringe 200 in the above embodiment is formed in the universal vertically symmetric and left-right pairs, RFID tag 230 is illustrated to be positioned to the left or right in properly mounted state in the liquid injector 100.

[0118] However, by previously sticking "Use here as upper," "V Do not use here as the upper," stickers a message is described, such as the outer peripheral surface of the cylinder body 211 ( not shown), it is also possible to liquid syringe 200 such that one is the other above the lower pair of flat portions 215 are defined.

[0119] In this case, for example, vertical direction in advance by mounting the RFID tag 230 on the left side of the outer peripheral surface of the cylinder body 21 1 of liquid syringe 200 which is specified, the third on the right in liquid injector 100 antenna sheet 133 is able to be joined to the first antenna sheet 130, only the second antenna sheet 131 left without mounting (not shown).

[0120] In such a chemical liquid injection system (not shown), even if liquid syringe 200 is mounted on injection head 110 in a state where the flat portions 215 of cylinder flange 213 are located up and down, the drug solution Syringe 200 is upside down if like than the RFID tag 230 and RFID reader 130 does not communicate wirelessly, it is possible to prevent the liquid syringe 200 is injection operation is performed by the upside down like state. Incidentally, it is of course, also possible to the opposite left and right above configuration (not shown).

[0121] Also, if the vertical liquid syringe 200 as described above is defined, for example, can contact to form a convex portion on at least one of the front or rear surfaces of the retaining slits of the fixed holding member, the convex portion it is possible to engage in a recess form shape only on at least one of the lower portion of the front or rear of the cylinder flange (not shown). In this case, even when the flat portion of the cylinder flange is positioned vertically, liquid syringe is it is not mounted on the liquid injector in the reverse-like state.

[0122] Furthermore, if the vertical liquid syringe 200 as described above is defined, for example, when the transparent chemical is visible above mosquitoes ゝ et through the cylinder member 210 is filled with a predetermined shape it is also possible that is designated is divided into the inner surface of the holding recess 115 of the lower surface and the body holding member 114 of the symbol power cylinder member 210 formed (not shown). In this case, Ru liquid syringe vertically Direction is specified is properly held! Or Ru, can be found in both the above symbols and RFID reader 130, further chemical to the cylinder member 210 There can also be confirmed by the design force being filled.

[0123] Further, the in the above embodiment other than the portion facing the RF ID tag 230 of liquid syringe 200 is appropriately mounted on chemical liquid injector 100, to be shielding the antenna sheet 131 to 133 in the electromagnetic shielding sheet 138 It illustrated, but it is not impossible to omit this electromagnetic shielding sheet 138.

[0124] In this case, since the RFID tag 230 may wirelessly communicate with RFI D reader 130 if the state located in the lower half of liquid syringe 200, the cylinder at a particular rotational position around the axis of the liquid syringe 200 Rukoto to detect whether the flange 213 is held to the flange holding member 121 is difficult.

[0125] In other words, useless to detect whether the liquid syringe is held at a particular rotational position about the axis, and RFI D reader in a state of positioning the RFID tag in the lower half of the liquid syringe if you want to wireless communications, it is preferable to expose the en Tenashito 131-133 omitted electromagnetic shielding sheet 138 as described above (not shown).

[0126] Furthermore, in the above embodiment one end of the second and third antenna sheet 132, 133 force exemplified that the upper force is also in close contact with the both first antenna Nashito 131 to one end of the first antenna sheet 131 it is also possible to both or one of the second and third antenna sheet 132, 133 is in close contact from below (not shown).

[0127] In addition, due to the shape and size of the relationship between the holding recess 115 and the antenna sheet 131 to 133 in the above embodiment, the outermost edge of the right end of the first antenna end of the sheet 131 to the left edge portion of the second antenna sheet 132 parts by adhering the outermost edge of the left end of the third antenna sheet 133 to the right outer edge causes into close contact with the left end of the second antenna sheet 132 and the right end of the third antenna Nashito 133 is properly held It exemplified that located on the left and right sides of liquid syringe 200.

[0128] However, in the joint structure Nagagu above from the antenna sheet 131 to 133 desired size so that the right end of the second left and the third antenna sheet 132 of the antenna sheet 133 is located above the desired position case, for example, as shown in FIG. 13, in close contact with the left end entire region of the first third with advance the rightmost whole is adhered to the second antenna sheet 132 to one end throughout the antenna sheet 131 of the antenna sheet 133 it is preferable to place. [0129] Furthermore, as in the above embodiment is shown in the force diagram 14 illustrating the chemical liquid injector 100 of liquid syringe 200 is mounted only one injection head 110, a plurality of liquid Syringe 200 in injection head 170 is mounted is the liquid injector (not shown) are possible.

[0130] The recording data detected by RFID reader 130 from RFID tag 230 in the form, the injection control Interview separate from the injection head 110 - illustrated to be displayed on the LCD display 104 of Tsu DOO 101 did. However, as shown in FIG. 14, the injection head 170 previously equipped with a display device 171 such as a liquid crystal displays, there it is also possible to display the recording data of the RFID tag 230.

[0131] In this case, when liquid syringe 200 is appropriately mounted on injection head 170, the recording data to a display device 171 of the head 170 to the injection appears, the operator chemical syringe 200 is appropriately it is possible to quickly ascertain whether or mounted, it is possible to intuitively recognize the display data.

[0132] In addition, integrated force was in the form illustrates that fixing member 122 of the pair of flange holding members 121 are separated to the left and right with variable dynamic holding member 123 for example, the left and right fixed holding member below It is coupled to and it is also possible to only the movable holding member 123 is separated to the left and right (not shown), as shown in FIG. 14, the main body only at fixed holding member 173 flange holding member is not movable it is also possible, which is formed integrally with the holding member 174.

[0133] In addition, wound around the force in the above embodiment exemplifies the case where is mounted in a state where the RFID tag 230 in the longitudinal direction coincides with the cylinder member 210 for example, RFID tag 230 on the outer peripheral surface of the cylinder member 210 in the longitudinal direction is mounted so is!, Rukoto Do is also impossible, (not shown)

[0134] In addition, the illustrated force that entirely formed of Cylinders member 210 in wall thickness does not inhibit the chemical electromagnetic induction of the RFID tag 230 in the above embodiment example, when the thickness of the cylinder member is not sufficient , it is also possible to be formed only a portion RFID tag 230 is attached to a predetermined thickness, it is also possible to instrumentation wearing RFID tag 230 to the cylinder member via a pedestal 榭脂 ( both not shown).

[0135] Further, the high permeability magnetic material such as ferrite is formed in substantially the same shape of the sheet-like RFID tag 230, to place the RFID tag 230 on the outer peripheral surface of the cylinder member 210 through the magnetic it is also possible (not shown). In this case, since the electromagnetic field on the back of the RFID tag 230 passes through the magnetic material elements, it is possible to prevent the electromagnetic field is absorbed in the chemical, it is possible to improve the communication performance of the RFID tag 23 0.

[0136] Furthermore, with the above-described embodiment is arranged at a position facing the RFID tag 230 is one end top is bent behind the first antenna Nashito 131 inserted through the through hole 135 of the main body support member 114 and exemplifies the Ru lower as the other end is in close contact with the RFID reader 130 is bent forward.

[0137] However, RFID reader 130 is disposed at the rear of the through-hole 135, it is also possible to lower part of the first antenna sheet over bets 131 are contacted to be bent backwards to the RFID reader 130, it is also possible to top of the first antenna sheet 131 is opposed to the RFID tag 230 is bent forward (both not shown).

[0138] In addition, that the degree of the ferrite sheet 137 and the antenna sheet 1 31-133 and the electromagnetic shielding sheet 138 negligible thickness in the above embodiment is placed on the bottom surface of the holding recess 115 of the body holding member 114 Although illustrated, for example, it is also possible to the bottom surface disposed and formed to the sheet over preparative 131 ... the recesses in the retaining recess 115 (not shown). In this case, even when the sheet 131 ... Do negligible thickness, as can be satisfactorily mounting the liquid medicine syringe 200 into the holding recess 115 without being obstructed in its thickness.

[0139] Further, in the above embodiment has illustrated that the other end top surface of the first antenna sheet 131 is adhered to the lower surface of the RFID reader 130, if the range in which electromagnetic induction is performed well, the first V, to face the other end top surface of the antenna sheet 131 and the lower surface of the RFID reader 130 is moved away Rukoto is also possible (not shown).

[0140] Furthermore, for simplicity of description in the above embodiment, the size of the chemical liquid syringe 200 mounted on chemical liquid injector 100 is assumed to be one. However, in chemical liquid injection system present inventors have we are carried, there is a plurality of sizes in liquid syringe 200, as shown in FIG. 15, the cylinder adapter 400 for each liquid syringe 200 of the size other than the maximum size are provided there.

[0141] In such a chemical liquid injection system, liquid syringe 200 of the maximum size is directly mounted on chemical liquid injector 100, liquid syringe 200 of the size other than the maximum size are mounted through the cylinder adapter 400. Therefore, when the cylinder adapter 400 to chemical liquid injector 100 is properly instrumentation wearing, left and right outer surfaces of the left or the third right end and the cylinder adapter 400 that faces parallel to the antenna sheet 133 of the second antenna sheet 132 Ya also on the inner surface, it is possible to keep wearing the RFID tag 230.

[0142] In this case, chemical liquid injector 100, both the cylinder adapter 400 and liquid syringe 200 is appropriately mounted, can see the Luke, recording data and liquid syringe 200 of the cylinder adapter 400 by collating the recorded data, it is also possible, such as combination of the liquid syringe 200 and shea cylinder adapter 400 confirms appropriate.

[0143] and force also, such as an RFID reader 130 for MM tag can communicate wirelessly with a plurality of RFID tags 230 Runode, liquid injector 100, both the cylinder adapter 400 and liquid syringe 200 with one RFID reader 130 it can be an RFID tag 230 by wireless communication.

[0144] In the chemical liquid injection system as described above, since the antenna sheet 132, 133 of the RFID tag 230 and the chemical liquid injector 100 of liquid syringe 200 will face each other with a cylinder adapter 400, the cylinder adapter 400 is suitably by forming a non-magnetic material such as 榭脂 not inhibiting the wireless communication with the RFID tag 230 and RFID reader 130.

[0145] Further, in order to limit at one time the use of such liquid syringe 200 in the above embodiment, chemical liquid injector 100 from RFID tag 230 serial number for each individual liquid syringe 200 that is used is wireless reception by the RFID reader 130 storing Te, it illustrated to output the a check alarm newly wirelessly received the serial number is stored.

[0146] However, leave the RFID tag 230 of liquid syringe 200 and data recordable capable products, liquid injector 100 records the already used RFID tag 230 of liquid syringe 200 the injection operation is performed is mounted it is also possible that the used from the RFID tag 230 of the new liquid syringe 200 outputs a check alarm to be wirelessly received.

[0147] In this case, since it is not necessary to register the massive production number to liquid injector 100, it is possible to prevent a overflow RAM 143, there is no need to unnecessarily loaded and large capacity RAM 143. And power, nor stored data of the liquid injector 100 is incorrectly reset, it is possible to prevent unauthorized repeat use of liquid syringe 200. [0148] Furthermore, a control data of the chemical injection from the RFID tag 230 of liquid syringe 200 to chemical liquid injector 100 in the above embodiment are also a radio receiver, liquid injector equipment 100 in response to the control data to control the liquid injection operation illustrated only to. However, the control data liquid injector 100 wirelessly receives from the RFID tag 230 of liquid syringe 200, the control data input operation from an operation panel 10 3, also in response to a combination of controlling the liquid injection operation possible it is.

[0149] For example, may be recorded over time variable pattern of liquid injection into the RFID tag 230 of liquid syringe 200 as described above, the imaging site by CT scanner 300 is input operation such as an operation panel 103, it is also possible that the variable pattern is adjusted in response to the imaging region.

[0150] Furthermore, had virtual boss that liquid injector 100 registered free line received serial number from the RFID tag 230 of liquid syringe 200 to end the injection operation in the above embodiment is completed various operations. However, for example, liquid injector 100 completes the data register of the injection operation and production number as described above, the detection result, the initial position of the piston driving mechanism 116 of the tail removal of liquid syringe 200 by RFID reader 130 it is also possible to automatically retracted to.

[0151] Moreover, in this way liquid injector 100 is retracted the piston driving mechanism 116 to complete the various operations to the initial position, detects the mounting of new liquid syringe 200 with RFID reader 130, the piston member 210 it is also possible to advance the piston driving mechanism 116 to the standby position for holding automatically and the.

[0152] In these cases, that liquid syringe 200 is detachably attached to the liquid injector 100 at an appropriate timing, the piston driving mechanism 116 is arranged to automatically proper position, special operation for this placement the convenience of the chemical liquid injector 100 need Nag, may be further 〖this improvement.

[0153] In addition, the manufacturer in RFID tag 230 of liquid syringe 200 in the above embodiment has assumed that to record various data. However, it is also possible to record various data to the RFID tag 230 of liquid syringe 200 in the medical field, such as hospitals to use such liquid syringe 200. [0154] In this case, it is possible to impart the desired data on liquid syringe 200 in the medical field, for example, when filling a desired chemical to liquid syringe 200 of the afterloading type, RFID tag 230 and various data that chemical in it is possible that recorded. Even in such a case, for example, is such serial number to prevent repeated use of liquid syringe 200 as described above, it is preferable to keep fixedly recorded in advance in the RFID tag 230.

[0155] Furthermore, the force example illustrated only that the liquid injector 100 is pressed into the piston member 220 into cylinder member 210 of liquid syringe 200 to inject liquid into a patient in the above embodiment, the liquid medicine pack separate by pulling out the piston member 220 from the cylinder member 210 which is connected with an extension tube, Rukoto be filled with the drug solution is also possible in liquid injector 100 is liquid syringe 200 (not shown).

[0156] Further, in the above embodiment using the CT scanner 300 as the imaging diagnostic apparatus, liquid injector 100 illustrates that injecting a contrast agent for CT. However, for example, as an imaging diagnostic apparatus using such an MRI apparatus or a PET apparatus, it is also possible that the liquid injector it for the contrast medium is injected.

[0157] Furthermore, in the above embodiment has been described specifically with each portion such as the liquid injector 100, it found each part can be changed in various ways. For example, the driving source of the piston driving mechanism is formed by DC (Direct Current) motor or an ultrasonic motor or a linear motor or solenoid !, Rukoto, de chair Play device is formed by EL (Electro Luminescence) display and a plasma display and that it is equal also possible (not shown).

[0158] Further, in the above embodiment by operating the CPU141 in response to a computer program stored in such RAM 143, various means as various functions of chemical liquid injector 100 illustrated to be logically realized. However, it is also possible to form each of such various means as specific Haiti Douea, it is possible to form a part as Nono Douea stores the part RAM143 such as software.

Claims

The scope of the claims
Piston member Ru cylinder member cylinder flange formed at the rear end outer periphery of the cylinder body is inserted slidably!, And liquid syringe Ru and push the piston member to the silicon Sunda member of the liquid syringe a liquid injection system which has a liquid injector for injecting a liquid into a patient, and
The liquid syringe, RFID (Radio Fr equency Identification) tag for wirelessly transmitting recorded data by electromagnetic induction are mounted on the outer circumferential surface of said cylinder body, said liquid injector, the axial direction and the longitudinal direction holding a metallic body holding member holding recess is provided for holding, the cylinder flange the inserted body holding member be supported above mosquitoes ゝ et the cylinder body that is inserted from above in parallel with a metallic flange holding member you, a piston drive mechanism for pushing said piston member in said cylinder da body held together with the cylinder flange, and an RFID reader for wirelessly receiving the recorded data of the RFID tag by electromagnetic induction and operation control means for controlling the operation of the recording data of the radio reception and corresponds the piston drive mechanism, a loop antenna of elongated shape First and second antenna sheet having has an electromagnetic shielding sheet, a to cut off the electromagnetic induction,
The liquid syringe, the which RFID tag is arranged at a position of the left or right of the cylinder member held by the body holding member in a specific rotational position about the axis,
The liquid injector has a through hole is formed to penetrate from the outer surface to the retaining recess to the inner surface, wherein the RFID reader is arranged at a position adjacent to the through hole of the outer surface of the holding recess, the through hole faces the other end the RFID reader with one end of the first antenna sheet being 揷通 is disposed on the bottom surface of the holding recess in the longitudinal direction in the horizontal direction and parallel to the the one end of the second antenna sheet of liquid syringe in correspondence with the RFID tag is disposed on the inner surface left or inner surface right of the holding recess opposite the end of the first antenna sheet, the second the other end and the first upper surface of the portion other than the end of the antenna sheet is shielded by the electromagnetic shield sectional sheet!, Ru chemical liquid injection system of the antenna Nashito. Piston member Ru cylinder member cylinder flange formed at the rear end outer periphery of the cylinder body is inserted slidably!, And liquid syringe Ru and push the piston member to the silicon Sunda member of the liquid syringe a liquid injection system which has a liquid injector for injecting a liquid into a patient, and
Wherein the liquid syringe has an RFID tag for wirelessly transmitting recorded data by electromagnetic induction is mounted on the outer circumferential surface of the front Symbol cylinder body,
The chemical liquid injector includes a metallic body holding member holding recess is provided for holding the cylinder body axis direction is inserted from above in parallel to the longitudinal direction, it is supported by the body holding member a piston drive mechanism for pushing the metallic flange holding member that holds said cylinder flange to be inserted upwardly mosquito ゝ al, the piston member to the cylinders body held together with the cylinder flange Te, the recording of the RFID tag an RFID reader for wirelessly receiving the data by electromagnetic induction, and operation control means for controlling the operation of the piston driving mechanism to correspond to the radio reception of the recording data, first from the first having a loop antenna of elongated shape and 3 of the antenna sheet, has an electromagnetic shielding sectional sheets, and blocking the electromagnetic induction,
The liquid syringe, axis the is the RFID tag is placed at the position of the side of the body holding the cylinder member held by the member in a particular rotational position around the said liquid injector, the through hole penetrating from its outer surface to the inner surface in the holding recess and is made form, the RFID reader is arranged in a position adjacent to the through hole of the outer surface of the holding recess, is 揷通 in the through-hole the other end with it being the end of the first antenna sheet is disposed on the bottom surface of the holding recess has opposite the RFID reader, the longitudinal direction of the inner surface left the holding recesses in parallel to the lateral direction and the right end of the second antenna sheet being arranged so as to face the one end of the first antenna sheet, the longitudinal direction is disposed on the inner surface right of the holding recesses in parallel to the lateral direction the The left end of the third antenna sheet faces the one end of the first antenna sheet, the right end of the first antenna end and left end other portion of said second antenna sheet between the sheet and the third antenna sheet upper surface wherein the portion other than being shielded by the electromagnetic shielding sheet, Ru chemical liquid injection system. [3] The main body holding member is formed of a metal non-magnetic material, the inner surface of the holding recess, and one end of the first antenna sheet and said second antenna sheet via the sheet-like magnetic body chemical liquid injection system according to claim 1 is arranged, Ru Te.
[4] The main body holding member is formed of a metal non-magnetic material, the inner surface of the holding recess, and the first of the antenna sheet end and between the second antenna sheet third antenna sheet liquid injection system according to claim 2 which is arranged via a sheet-like magnetic material.
[5] The RFID tag is arranged through the sheet-like magnetic material on the outer peripheral surface of the cylinder body, Ru claim 1 for the chemical liquid injection system according to any one of the teeth 4.
[6] The magnetic strength S ferrite claim 3 which is liquid injector system according to any one of the teeth 5.
[7] The RFID tag is formed in a substantially rectangular sheet shape,
The antenna sheet has a substantially rectangular loop antenna sheet is formed structure, Ru claim 1 for the chemical liquid injection system according to any one of the teeth 6.
[8] When transparent liquid medicine is viewed upward force through the cylinder member is filled a predetermined shape symbols, which are divided by notation and the inner surface of the lower surface and the holding recess of the cylinder member , Ru claim 1 for the chemical liquid injection system according to any one of the teeth 7.
[9] the flange holding member holds the cylinder flange of the liquid syringe upward force is also inserted from the front and back, has a holding Sri Tsu preparative which convex portions are formed on at least one of the front and rear surfaces,
At least one of the front and rear faces of the cylinder flange, and the convex portion at a particular rotational position around the axis is formed a recess engaging !, Ru of claim 1, one of the teeth 8 one chemical liquid injection system according to claim.
[10] The operation control unit, the chemical and the RFID tag of the syringe to detect the RFID reader, Rutoki only, the piston drive mechanism of claim 1 which permits the operation of any one of the teeth 9 chemical liquid injection system described.
[11] a cylinder flange at a rear end outer periphery of the cylinder body is inserted freely piston member force S slides in a cylinder member being formed, RFID for wirelessly transmitting recorded data by electromagnetic induction (Radio Frequency Identification) tag the cylinder mounted to liquid syringe forces the RFID tags that have been attached on the outer peripheral surface of the main body is placed in the position of the left or right of the cylinder member, the drug solution is pushed to the piston member in said cylinder member a liquid injector for injecting the subject,
A metallic body holding member holding recess for holding the cylinder body to be inserted from above is provided in parallel to the longitudinal direction of the axial direction,
A metallic flange holding members said cylinder flange to be inserted upwardly mosquitoes ゝ et be supported on the body holding member to hold,
A piston driving mechanism Komu press the piston member into the cylinder body which is held together with the cylinder flange,
An RFID reader for wirelessly receiving the recorded data of the RFID tag by electromagnetic induction, and operating control means for controlling the operation of the piston driving mechanism in response to wireless reception of the recording data,
First and second antenna sheet having a loop antenna of elongated shape,
It has an electromagnetic shielding sheet to cut off the electromagnetic induction,
The through hole penetrating to the inner surface from the outer surface of the holding recess is formed in the body holding member,
The RFID reader is arranged at a position adjacent to the through hole of the outer surface of the holding recess
Wherein is 揷通 the through hole first antenna sheet has the other end with one end is disposed on the bottom surface of the holding recess opposite the RFID reader,
The longitudinal direction is disposed on the inner surface left or inner surface right before Symbol holding recess corresponding to the RFID tag of the liquid syringe in parallel to the lateral direction the second antenna sheet, said one end first antenna It is opposed to one end of the sheet,
It said second liquid injector the upper surface of the other end and a portion other than an end of the first antenna sheet of the antenna sheet is shielded by the electromagnetic shielding sheet.
Cylinder flange formed at the rear end outer periphery of the cylinder body is inserted into the Ru cylinder member freely piston member force S slides, RFID for wirelessly transmitting recorded data by electromagnetic induction (Radio Frequency Identification) tag of the cylinder body liquid syringe force on the outer circumferential surface that has been mounted the mounted so RFID tag is arranged at a position on the side of the cylinder member, chemical liquid entering Note the liquid into a patient by pushing the piston member into the cylinder member an injection device,
A metallic body holding member holding recess for holding the cylinder body to be inserted from above is provided in parallel to the longitudinal direction of the axial direction,
A metallic flange holding members said cylinder flange to be inserted upwardly mosquitoes ゝ et be supported on the body holding member to hold,
A piston driving mechanism Komu press the piston member into the cylinder body which is held together with the cylinder flange,
An RFID reader for wirelessly receiving the recorded data of the RFID tag by electromagnetic induction, and operating control means for controlling the operation of the piston driving mechanism in response to wireless reception of the recording data,
The first having a loop antenna of elongated shape and the third antenna sheet,
It has an electromagnetic shielding sheet to cut off the electromagnetic induction,
The through hole penetrating to the inner surface from the outer surface of the holding recess is formed in the body holding member,
The RFID reader is arranged at a position adjacent to the through hole of the outer surface of the holding recess
Wherein is 揷通 the through hole first antenna sheet has the other end with one end is disposed on the bottom surface of the holding recess opposite the RFID reader,
The longitudinal direction is disposed on the inner surface left of the retaining recess in parallel to the lateral direction the second antenna sheet, Ri your right end opposite the one end of the first antenna sheet,
The longitudinal direction is disposed on the inner surface right of the holding recesses in the lateral direction and parallel to the third antenna sheet, Ri your left end opposite the one end of the first antenna sheet,
The first chemical liquid injector which upper surface is shielded by the electromagnetic shielding sheet of the antenna sheet end and the left end than the portion of said second antenna sheet and the third antenna rightmost other parts of the sheet.
The RFID tag is formed in a substantially rectangular sheet shape,
The antenna sheet is to have a substantially rectangular loop antenna sheet is formed structure, Ru liquid injector according to claim 11 or 12.
PCT/JP2007/057412 2006-04-05 2007-04-02 Medicinal-liquid injection system WO2007116864A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
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JP2006104618 2006-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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