WO2007114446A1 - Système d'injection de liquide médical - Google Patents

Système d'injection de liquide médical Download PDF

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Publication number
WO2007114446A1
WO2007114446A1 PCT/JP2007/057493 JP2007057493W WO2007114446A1 WO 2007114446 A1 WO2007114446 A1 WO 2007114446A1 JP 2007057493 W JP2007057493 W JP 2007057493W WO 2007114446 A1 WO2007114446 A1 WO 2007114446A1
Authority
WO
WIPO (PCT)
Prior art keywords
chemical
cylinder
sheet
syringe
antenna
Prior art date
Application number
PCT/JP2007/057493
Other languages
English (en)
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
Application filed by Nemoto Kyorindo Co., Ltd. filed Critical Nemoto Kyorindo Co., Ltd.
Priority to JP2008508703A priority Critical patent/JP5063590B2/ja
Publication of WO2007114446A1 publication Critical patent/WO2007114446A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546—Front-loading type injectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6018—General characteristics of the apparatus with identification means providing set-up signals for the apparatus configuration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6054—Magnetic identification systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/1456—Pressure 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

Definitions

  • the present invention relates to a chemical solution injection system for injecting a chemical solution of a chemical solution syringe into a subject with a chemical solution injection device.
  • the present invention relates to a chemical injection system that injects a contrast medium into a subject whose fluoroscopic image is captured by a fluoroscopic imaging device such as a scanner.
  • a fluoroscopic imaging device for imaging a fluoroscopic image of a subject
  • a CT scanner an MRI (Magnetic Resonance Imaging) device
  • MRI Magnetic Resonance Imaging
  • PET PET
  • ultrasonic diagnostic device a CT angiography device
  • MRA MRA
  • Angio equipment, etc.
  • a chemical solution such as a contrast medium or physiological saline may be injected into the subject, and a chemical injection device that automatically performs this injection has also been put into practical use! .
  • Such a chemical solution injection device has, for example, a piston drive mechanism including a drive motor and a slider mechanism, and a chemical solution syringe is detachably attached thereto.
  • the chemical syringe generally has a cylinder member and a piston member, and the piston member is slidably inserted into the cylinder member.
  • the cylinder member has a cylindrical cylinder body, a conduit portion is formed at the center of the closed front end, and the rear end is opened.
  • An annular cylinder flange is formed on the outer periphery of the rear end of the cylinder body, and a piston member is inserted inside the opening force of the rear end.
  • Such a liquid syringe includes a prefilled type and a post-filling type.
  • Prefilled type chemical syringes are shipped in a state where the cylinder members are filled with chemicals and the whole is sealed with packing materials.
  • a post-filling type liquid medicine syringe a user fills a cylinder member with a desired liquid medicine.
  • the explanation is made on the assumption that the chemical syringe is a prefilled type.
  • the operator When injecting the chemical solution of the above-described chemical solution syringe into the subject, the operator prepares a chemical solution syringe filled with an appropriate chemical solution, and also removes the chemical solution syringe from the packing material.
  • the chemical solution injection device pushes the piston member into the cylinder member by the piston drive mechanism in response to a predetermined operation, and thus the chemical solution is injected into the subject such as the chemical solution syringe.
  • the chemical solution injection device supplies the chemical solution corresponding to the input data. Inject the subject. For example, if a contrast medium is injected as a chemical solution, the contrast level of the subject changes, and a good fluoroscopic image is captured by the fluoroscopic imaging device.
  • a force chemical liquid injection device having a high viscosity contrast medium is suitable for injecting a contrast medium because a piston member can be pushed into a cylinder member of a chemical liquid syringe at a high pressure.
  • a piston member can be pushed into a cylinder member of a chemical liquid syringe at a high pressure.
  • the chemical injection device implemented by the present applicant has a pair of left and right metal flange holding members, and the flange holding member can be freely opened and closed by the metal main body holding member. I support it.
  • the main body holding member has a holding recess formed on the upper surface, and holds the cylinder main body inserted from the upper side by the holding recess.
  • the pair of left and right flange holding members are formed with holding slits on the inner surfaces facing each other, and hold the left and right portions of the cylinder flange of the chemical syringe inserted from above in an open state in a closed state.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2004-154238
  • Patent Document 2 JP 2004-154239 A
  • Patent Document 3 Japanese Unexamined Patent Application Publication No. 2004-187849
  • Patent Document 4 JP 2004-243009
  • Patent Document 5 Japanese Unexamined Patent Application Publication No. 2004-290454
  • the cylinder flange of the chemical syringe can be firmly held by the metal flange holding member. Therefore, a high viscosity contrast agent is formed by pushing the piston member into the cylinder member of the chemical syringe at a high pressure. Can be successfully injected into a subject. Moreover, since the flange holding member that can be opened and closed is supported by the metal main body holding member, even if a large amount of stress acts on the chemical liquid syringe force flange holding member, for example, the main body holding member may be deformed or damaged. Don't do it.
  • a flat portion is formed on a part of the outer peripheral surface of the cylinder flange in order to prevent unnecessary rolling and the like.
  • the flat portion is usually formed in a shape obtained by partially cutting the circular outer peripheral surface of the cylinder flange in a straight line, and is formed in parallel so as to be paired with the opposite position of the outer peripheral surface of the cylinder flange. ing. Therefore, the above-described chemical injection device is formed in a structure in which a circular portion that is not a flat portion of the cylinder flange is held by a flange holding member. Therefore, the operator needs to hold the cylinder flange on the flange holding member at the position of the circular portion.
  • the present applicant's power application 2004-110853 (WO2005Z097232A1)
  • a pattern that has a predetermined shape when viewed from above through a cylinder member filled with a transparent chemical solution is formed on the lower surface of the cylinder member and the inner surface of the holding recess of the main body holding member. It is divided into two.
  • the upward force of the cylinder member is visually recognized as a predetermined shape only when the chemical solution syringe filled with the chemical solution is properly attached to the chemical solution injection device.
  • this visual recognition it is possible to confirm both that the chemical syringe is appropriately held and that the cylinder member is filled with the chemical solution at a time.
  • the chemical solution is injected into the subject from the chemical solution syringe.
  • the operator needs to select an appropriate chemical solution syringe. is there.
  • the operator since there are products with the same or similar appearance even if the type of the chemical solution is different, there is a possibility that the operator may attach the chemical syringe of the chemical solution to the chemical injection device.
  • a product that is not a compatible product may be used as a chemical syringe, and a medical accident may occur due to inadequate performance such as pressure resistance.
  • prefilled type drug syringes are discarded after a single use to prevent infection, but current drug injectors cannot prevent a drug syringe once used from being used again. .
  • the present invention has been made in view of the above-described problems, and the flange holding member appropriately holds the chemical syringe, and automatically prevents the piston drive mechanism from being driven in this state.
  • An object of the present invention is to provide a chemical solution injection system that can be used.
  • the chemical solution injection system of the present invention includes a chemical solution syringe and a chemical solution injection device.
  • the chemical liquid syringe has a cylinder member having a cylinder flange formed on the outer periphery of the rear end of the cylinder body, and a piston member that is slidably inserted from the rear of the cylinder member.
  • the chemical injection device pushes the piston member into the cylinder member of the chemical syringe and injects the chemical into the subject.
  • the chemical syringe has an RFID tag mounted on the outer peripheral surface of the cylinder body.
  • the RFID tag has a circuit chip and a planar loop antenna connected to the circuit chip, and wirelessly transmits recorded data by electromagnetic induction.
  • the chemical liquid injector includes a main body holding member, a flange holding member, a piston drive mechanism, an RFID reader, an operation control means, first and second antenna sheets, electromagnetic It has a blocking sheet and a leader support member.
  • the main body holding member is made of metal, and holds the cylinder main body inserted from above with the holding recess in a state where the axial direction is parallel to the front-rear direction.
  • the flange holding member is made of metal, is supported by the main body holding member, and holds the cylinder flange inserted from the upper side.
  • the piston drive mechanism pushes the piston member into the cylinder member held together with the cylinder flange.
  • the RFID reader wirelessly receives the RFID tag recording data by electromagnetic induction.
  • the operation control means controls the operation of the piston drive mechanism in response to radio reception of the recording data.
  • the antenna sheet has an elongated loop antenna.
  • the electromagnetic shielding sheet blocks electromagnetic induction.
  • the reader support member is made of a non-conductive material and a non-magnetic material, and has a support recess having a shape substantially continuous to the holding recess.
  • the chemical syringe is held by the main body holding member at a specific rotational position around the axis.
  • An RFID tag is disposed at a side position of the cylinder member.
  • a through hole facing the RFID tag is formed in the main body holding member in a shape that continues to the left side and right side of the held chemical liquid syringe.
  • a reader support member is mounted on the body in the through hole of the main body holding member in a state in which the support concave portion is substantially continuous with the holding recess, and an RFID reader is embedded in the lower part of the inner surface of the support concave portion of the reader support member.
  • the right end of the first antenna sheet placed on the left side of the inner surface of the support recess with the longitudinal direction parallel to the left-right direction faces the RFI D reader, and the support recess with the longitudinal direction parallel to the left-right direction
  • the left end of the second antenna sheet arranged on the right side of the inner surface faces the RFID reader, and the upper surface of the RFID reader and the portion other than the left end of the first antenna sheet and the portion other than the right end of the second antenna sheet Is shielded by an electromagnetic shielding sheet.
  • the chemical liquid injector includes a flange holding member, a body holding member, a piston drive mechanism, an RFID reader, an operation control means, first and second antenna sheets, and It has an electromagnetic shielding sheet.
  • the main body holding member is made of a non-conductive material and a non-magnetic material.
  • the upper surface of the RFID reader is positioned on the bottom surface of the holding recess of the main body holding member, and the right end of the first antenna sheet arranged on the left side of the inner surface of the holding recess with the longitudinal direction parallel to the horizontal direction is the RFID reader.
  • the left end of the second antenna sheet disposed on the right side of the inner surface of the holding recess with the longitudinal direction parallel to the left-right direction faces the RFID reader.
  • the RFID tag and the antenna sheet as described above can be formed in, for example, a substantially rectangular sheet shape.
  • the antenna sheet can be formed as a structure corresponding to an RFID tag in which a circuit chip is omitted.
  • RFID tags and antenna sheets are approved as communication devices of the unified standard and are mass-produced as off-the-shelf products.
  • the various means referred to in the present invention may be formed so as to realize their functions!
  • dedicated hardware that exhibits a predetermined function
  • a predetermined function that is a computer program. It can be realized as a data processing device provided by a program, a predetermined function realized in a data processing device by a computer program, a combination thereof, etc.
  • a plurality of constituent elements that do not need to be independent from each other are formed as one member, and one constituent element includes a plurality of members. It is possible that a component is a part of another component, a part of a component overlaps a part of another component, etc. is there.
  • the front-rear, left-right, up-down directions are defined, but this is defined for convenience in order to briefly explain the relative relationship of the components of the present invention.
  • the direction at the time of manufacture and use at the time of giving is not limited.
  • the left Z right end of the antenna sheet referred to in the present invention means a portion from the outermost edge in the longitudinal direction to an arbitrary range, and may be, for example, a substantially square portion.
  • FIG. 1 is an exploded perspective view showing an assembly structure of a main part of an injection head of a chemical injection device according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a state in which a chemical syringe is attached to an injection head.
  • FIG. 3 is a perspective view showing the appearance of the chemical liquid injector.
  • FIG. 4 is a perspective view showing the appearance of a CT scanner that is a fluoroscopic imaging apparatus.
  • FIG. 5 is a schematic cross-sectional view of a main part showing a state where a chemical syringe is attached to an injection head.
  • FIG. 6 is a schematic front view of the main part showing a state in which a chemical syringe is attached to the injection head.
  • FIG. 7 is a schematic perspective view showing the appearance of an RFID tag.
  • FIG. 8 is a block diagram showing a circuit structure of the chemical solution injection system.
  • FIG. 9 is a block diagram showing a logical structure of the chemical liquid injector.
  • FIG. 10 is a flowchart showing the first half of the processing operation of the chemical liquid injector.
  • FIG. 11 is a flowchart showing the latter half of the processing operation of the chemical injection device.
  • FIG. 12 is a flowchart showing the processing operation of the CT scanner.
  • FIG. 13 An exploded perspective view showing the assembly structure of the main part of the injection head of the first modification.
  • FIG. 14 is a schematic cross-sectional view of the main part showing a state where the chemical syringe is attached to the injection head of the second modified example.
  • FIG. 15 is a perspective view showing an injection head of a third modified example.
  • FIG. 16 An exploded perspective view showing the assembly structure of the main part of the injection head of the fourth modified example.
  • FIG. 17 is a perspective view showing a state in which the chemical syringe is attached to the injection head with the cylinder adapter in the fifth modified example.
  • the chemical injection system 1000 of this embodiment has a chemical injection device 100, a chemical syringe 200, and a CT scanner 300 that is a fluoroscopic imaging device.
  • a fluoroscopic image is taken from a subject (not shown) who injects a medical solution such as a contrast medium.
  • the CT scanner 300 has a fluoroscopic imaging unit 301 and an imaging control unit 302 as shown in FIGS.
  • the fluoroscopic imaging unit 301 and the imaging control unit 302 are wiredly connected via a communication network 303.
  • the fluoroscopic imaging unit 301 is a fluoroscopic image from the subject.
  • the imaging control unit 302 controls the operation of the fluoroscopic imaging unit 301.
  • the chemical syringe 200 has a cylinder member 210 and a piston member 220, and the piston member 220 is slidably inserted into the cylinder member 210.
  • the cylinder member 210 has a cylindrical cylinder body 211, and a conduit portion 212 is formed at the closed front end of the cylinder body 211.
  • a rear end of the cylinder body 211 of the cylinder member 210 is opened, and a piston member 220 is inserted into the cylinder body 211 from this opening.
  • the cylinder member 210 has an annular cylinder flange 213 formed on the outer periphery of the rear end of the cylinder body 211, and the piston member 220 is an annular piston formed on the outer periphery of the piston body 221. It has flange 222.
  • the cylinder member 210 is made of a non-conductive and non-magnetic resin, and has a thickness of about 1.5 mm to 2.0 mm, for example.
  • the chemical syringe 200 used is a prefilled type, and the prefilled chemical syringe 200 is shipped in a state where the cylinder member 210 is filled with the chemical.
  • An RFID tag 230 is attached to the cylinder member 210 of the chemical syringe 200.
  • the RFID tag 230 includes the name, identification data of the prefilled type or post-filling type, identification data for each individual, capacity, cylinder member 210 pressure resistance, cylinder member 210 inner diameter, piston member 220. Various data such as strokes are recorded.
  • the RFID tag 230 has a name, component, viscosity, expiration date, identification data such as whether it is for CT or MR, etc. Various data are also recorded. Further, when the drug solution filled in the prefilled type drug solution syringe 200 is a contrast medium, a variable pattern that changes the injection rate with time is recorded in the RFID tag 230 as necessary.
  • the RFID tag 230 has an elongated resin sheet 231, and a circuit chip 232 is enclosed in the vicinity of one end thereof.
  • the resin sheet 231 has a tagger.
  • the antenna 233 is also formed by printed wiring as a planar and elongated loop antenna.
  • the tag antenna 233 is connected to the circuit chip 232.
  • the surface of the resin sheet 231 is formed in white, and various information can be printed on this surface.
  • An adhesive material (not shown) is applied to the back surface of the resin sheet 231, and the RFID tag 230 can be attached to the outer peripheral surface of the cylinder member 210 with the adhesive material.
  • the chemical syringe 200 has a pair of flat portions 215 formed in parallel at opposite positions of the circular outer peripheral surface 214 of the cylinder flange 213, thereby being symmetrical. And is formed in a vertically symmetrical structure.
  • the RFID tag 230 is on the left or right side of the outer peripheral surface of the cylinder body 211 in a state where the longitudinal direction thereof coincides with the axial direction of the cylinder member 210. It is attached to the side.
  • the chemical liquid injector 100 includes an injection head 110 and an injection control unit 101 that is configured separately from the injection head 110, and these are communication cables 102. Wired connection.
  • the injection head 110 drives the attached chemical solution syringe 200 to inject the chemical solution into the subject, and the injection control unit 101 controls the operation of the injection head 110.
  • the injection head 110 is attached to the upper end of the caster stand 111 via the movable arm 112, and as shown in FIG.
  • the injection head 110 has a head housing 113.
  • the head housing 113 is entirely formed of grease, but as shown in FIG. 2, only the upper part of the front end is formed of a metal main body holding member 114.
  • the main body holding member 114 is formed of a high-strength nonmagnetic metal such as an aluminum alloy, and a cylinder main body 211 inserted by an upward force is provided on the upper surface thereof.
  • the holding recess 115 for holding is formed in a semi-cylindrical shape having a diameter of about 6 cm, for example.
  • a cylinder holding mechanism 120 is connected to the rear end of the main body holding member 114.
  • the cylinder holding mechanism 120 is made of a high-strength metal such as a stainless alloy.
  • the cylinder holding mechanism 120 has a pair of left and right flange holding members 121.
  • the pair of left and right flange holding members 121 includes a fixed holding member 122 and a movable holding member 123.
  • the fixed holding member 122 is fixed to the rear end of the main body holding member 114, and the movable holding member 123 is supported by the rear end of the main body holding member 114 so that it can be opened and closed in the left-right direction.
  • the fixed holding member 122 and the movable holding member 123 are formed with arc-shaped holding slits on the inner surface, and the cylinder flange 213 of the drug solution syringe 200 is engaged therewith.
  • the cylinder holding mechanism 120 has a force capable of holding the cylinder flange 213 regardless of the rotation angle.
  • the flat portion 215 is positioned above and below. The operator is required to hold the cylinder flange 213 in a state. Then, when the cylinder flange 213 of the chemical syringe 200 is held by the cylinder holding mechanism 120 at a specific rotational position around this axis, the RFI D tag is positioned so as to be located on the left or right side. 230 is attached to the cylinder member 210.
  • the main body holding member 114 is formed at a position where a rectangular through-hole 130 continuous from the left to the right of the held liquid medicine syringe 200 faces the RFID tag 230.
  • a leader support member 131 made of resin, which is a non-conductive and non-magnetic material, is mounted on the body.
  • the reader support member 131 is formed with a support recess 132 having a shape substantially continuous with the holding recess 115 of the main body holding member 114 on the upper surface, and the RFID reader 134 is attached to the body in the opening hole 133 at the center of the inner surface.
  • the RFID reader 134 is formed, for example, as a chip component having a reader antenna (not shown) mounted on the surface thereof, and the reader support member so that the upper surface on which the reader antenna is located is substantially continuous with the inner surface of the support recess 132. Installed in 131 opening holes 1 33.
  • the chemical injection device 100 of the present embodiment includes first and second antenna sheets 135 and 136.
  • These antenna sheets 135 and 136 are formed in a structure corresponding to the RFI D tag 230 in which the circuit chip 232 is omitted.
  • the antenna sheets 135 and 136 are formed in a slender shape with a planar loop antenna formed into a slender shape with printed wiring on a slender resin sheet, and like the RFID tag 230, they are mass-produced as off-the-shelf products.
  • the antenna sheets 135 and 136 and the RFID tag 230 are formed in, for example, a rectangle of 18 mm ⁇ 50 mm, and include an MM tag (product name) that wirelessly communicates at a frequency of 13.56 MHz.
  • the first antenna sheet 135 is disposed on the left side of the inner surface of the support recess 132 in a state where the longitudinal direction is parallel to the left-right direction, and the outermost edge at the right end thereof. Is in close contact with the left outer edge of the upper surface of the RFID reader 134.
  • the second antenna sheet 136 is arranged on the right side of the inner surface of the support recess 132 in a state where the longitudinal direction is parallel to the left-right direction, and the outermost edge portion of the left end is in close contact with the right outer edge portion of the upper surface of the RFID reader 134. It is. As described above, since the reader antenna of the RFID reader 134 is located on the upper surface! /, The reader antenna and the antenna sheets 135 and 136 are well electromagnetically coupled.
  • the electromagnetic shielding sheet 137 having a predetermined shape is arranged on the upper surface of the RFID reader 134 and the antenna sheets 135 and 136 arranged as described above, the electromagnetic shielding sheet 137 allows the RFID reader to The upper surfaces of the part other than the left end of 134 and the first antenna sheet 135 and the part other than the right end of the second antenna sheet 136 are shielded.
  • This electromagnetic shielding sheet 137 is made of a material that shields electromagnetic induction, and specifically, can be made of a metal such as aluminum or ferrite.
  • the chemical injection device 100 of the present embodiment because of the size and shape of the first and second antenna sheets 135, 136 and the carrier support member 131, as shown in FIG.
  • the left end of the first antenna sheet 135 that is not shielded by the electromagnetic shielding sheet 137 is located on the left side of the chemical syringe 200 attached to the medical device 110, and is shielded by the electromagnetic shielding sheet 137 on the right side of the chemical syringe 200.
  • the right edge of the second antenna sheet 136 is not located.
  • the RFID tag 230 is placed on the left end of the first antenna sheet 135 or the right end of the second antenna sheet 136. It is electromagnetically coupled well in parallel with each other. As described above, since the first and second antenna sheets 135 and 136 are electromagnetically coupled to the RFID reader 134, the RFID tag 230 is connected to the first or second antenna sheet 135 and 136 as described above. When electromagnetically coupled, the RFID tag 230 and the RFID reader 134 are electromagnetically coupled.
  • the outer edge portions of the first and second antenna sheets 135, 136 and the inner edge portion of the through hole 130 of the main body holding member 114 and the force for example, 3.
  • the shape and arrangement of the leader support member 131 etc. has been devised so that it is separated by more than Omm.
  • the portions of the first and second antenna sheets 135 and 136 that are located outside the RFID reader 131 are supported by the inner surface of the concave portion 132 via the ferrite sheet 138 that is a sheet-like high-permeability magnetic body. Is arranged.
  • a recess 139 corresponding to the thickness of the ferrite sheet 1 38, the antenna sheets 135 and 136, and the electromagnetic shielding sheet 137 is formed on the inner surface of the supporting recess 132, and the upper surface of the electromagnetic shielding sheet 137 and the supporting recess 132 are formed. It is the same as the inside.
  • FIG. 6 is a schematic diagram, the outer peripheral surface of the chemical syringe 200 is drawn so that the surface force of the electromagnetic shielding sheet 137 and the like is also separated, but actually the RFID tag 230 and the like are drawn. Since the thickness is negligible, the chemical syringe 200 is held by the main body holding member 114 and the reader support member 131 with the outer peripheral surface being in close contact with the holding recess 115 and the support recess 132.
  • a piston drive mechanism 116 is mounted on the rear portion of the injection head 110.
  • the piston drive mechanism 116 holds the piston flange 22 2 of the chemical syringe 200 and slides it in the front-rear direction.
  • the piston drive mechanism 116 has a drive motor 117 such as an AC (Alternating Current) motor as a drive source, and slides the piston member 220 by a ball screw mechanism (not shown) or the like. .
  • the piston drive mechanism 116 also includes a load cell 118.
  • the load cell 118 detects the pressure that presses the piston member 220.
  • a long and narrow metal frame (not shown) is disposed on the left and right sides of the head housing 113, and the piston drive mechanism 116 and the main body holding member 114 are connected by the metal frame.
  • the injection control unit 101 connected to the injection head 110 having the structure as described above by the communication cable 102 has a built-in computer unit 140 as shown in FIG.
  • the imaging control unit 302 is also connected by wire via a communication network 304.
  • the injection control unit 101 includes an operation panel 103, a liquid crystal display 104 as a display device, a speaker unit 105, and the like arranged on the front surface of the main body housing 106, and is a separate controller unit. 107 is wired with connection cable 108.
  • the chemical injection device 100 of the present embodiment has various devices such as the above-described RFID reader 134 connected to the computer unit 140, and the computer unit 140 integrates the various devices. Control.
  • the computer unit 140 is a so-called one-chip microcomputer, which includes a CPU (Central Processing Unit) 141, a ROM (Read Only Memory) 142, and a RAM (Random
  • an appropriate computer program is mounted in firmware or the like on an information storage medium such as the ROM 142, and the CPU 141 executes various processing operations corresponding to the computer program.
  • the chemical injection device 100 operates the computer control unit 150 in response to the computer program implemented as described above.
  • the operation control means 150 logically has various means such as data storage means 151, data collating means 152, warning output means 153, data storage means 154, data holding means 156, display control means 157, injection control means 158, etc. is doing
  • the operation control means 150 corresponds to a function in which the CPU 141 executes a predetermined operation corresponding to a computer program mounted on the ROM 142 or the like and recording data received wirelessly from the RFID tag 230.
  • the data storage unit 151 corresponds to a storage area of the RAM 143 recognized by the CPU 141, and stores predetermined confirmation conditions.
  • the data collating means 152 collates the stored confirmation conditions with the record data received wirelessly from the RFID tag 230.
  • the warning output means 153 outputs a confirmation warning corresponding to the collation result.
  • identification data of the drug solution syringe 200 that can be used is registered as a confirmation condition.
  • the RFID reader 134 wirelessly receives the recording data from the RFID tag 230 of the chemical syringe 200
  • the wirelessly received identification data of the chemical syringe 200 is collated with the identification data registered in the RAM 143.
  • a guidance message such as "This product is not registered as a usable syringe. Check if it can be used.” The message is displayed on the liquid crystal display 104 as a confirmation warning, and the sound is output from the speaker unit 105.
  • the RAM 143 stores the current date and time updated daily as a confirmation condition.
  • the expiration date is received wirelessly from the RFID tag 230 of the chemical syringe 200
  • the expiration date and the current date and time are collated.
  • a guidance message such as “This product has passed the expiration date. Please use the product.”
  • Audio is output from the speaker unit 105.
  • the serial number for each individual is also recorded in the RFID tag 230, so that the data storage means 154 is attached to the injection head 110 and the injection operation is executed.
  • the data collating unit 152 collates the stored manufacturing number with the manufacturing number wirelessly received from the RFID tag 230, and the warning output unit 153 indicates that the collated manufacturing number matches "this The prefilled syringe has been used in the past, and a guidance message such as “Use a new product” is displayed on the liquid crystal display 104 as a confirmation warning, and the speaker unit 105 outputs sound.
  • the data holding unit 156 holds the recording data received wirelessly from the RFID tag 230.
  • the display control means 157 displays the stored recording data on the liquid crystal display 104.
  • the injection control means 158 controls the operation of the piston drive mechanism 116 corresponding to the stored recording data.
  • the RFID tag 230 of the chemical syringe 200 includes various data such as the name, pressure resistance and capacity of the chemical syringe 200, and the name and components of the chemical solution filled in the chemical syringe 200. And various data such as expiry date are recorded, and these recorded data are temporarily stored in the RAM 143 and displayed on the liquid crystal display 104.
  • control data of the piston drive mechanism 116 is recorded in the RFID tag 230 of the chemical syringe 200
  • the control data is held in the RAM 143.
  • the CPU 141 controls the operation of the piston drive mechanism 116 in accordance with the held control data. For example, chemical When a variable pattern that changes the injection speed of the contrast medium with the passage of time is recorded in the RFID tag 230 of the syringe 200, the CPU 141 changes the operating speed of the piston drive mechanism 116 with time corresponding to the variable pattern.
  • the CPU 141 corresponds to the detected pressure of the load cell 118, and the piston drive mechanism so as not to exceed the pressure resistance held in the RAM 143. 116 operation is controlled.
  • the CPU 141 controls the operation of the piston driving mechanism 116 in accordance with the capacity held in the RAM 143.
  • Various means of the chemical injection device 100 as described above are powers that are realized by using hardware such as the liquid crystal display 104 as necessary.
  • the main means are resources stored in an information storage medium such as the ROM 142, and the like. This is realized by the function of the CPU 141 which is hardware corresponding to the computer program.
  • Such a computer program is, for example, when the recording data is received wirelessly from the RFID tag 230 by the RFID reader 134 and the confirmation condition stored in the RAM 143 or the like and the recording data received wirelessly from the RFID tag 230.
  • a confirmation warning is output on the display of the liquid crystal display 104, etc.
  • the manufacturing number of the chemical syringe 200 that has been installed and the injection operation has been performed is stored in the RAM 143, etc.
  • the stored serial number and the serial number received wirelessly from the RFID tag 230 are collated, and a confirmation warning is output on the LCD 104 according to the collation result.
  • the recording data received wirelessly from the 230 is stored in the RAM 143, the stored recording data is displayed on the liquid crystal display 104, and the stored recording It is stored in an information storage medium such as the RAM 143 as software for causing the CPU 141 and the like to perform processing operations such as controlling the operation of the piston drive mechanism 116 corresponding to the recording data.
  • the injection head 110 of the chemical injection device 100 is arranged and used in the vicinity of the imaging unit 301 of the CT scanner 300.
  • a chemical syringe 200 is prepared.
  • the trader opens the movable holding member 123 of the injection head 110, attaches the drug solution syringe 200 to the holding recess 115 so that the cylinder flange 213 is inserted therein, and closes the movable holding member 123.
  • the RFID tag 230 of the chemical syringe 200 is located on the right side or the left side, it is electromagnetically coupled well facing the left end of the first antenna sheet 135 or the right end of the second antenna sheet 136 in parallel. It will be.
  • the first and second antenna sheets 135 and 136 are electromagnetically coupled to the RFID reader 134, the first and second antenna sheets 135 and 136 are electromagnetically coupled as described above.
  • the RFID tag 230 wirelessly communicates with the RFI D reader 134.
  • step S1 the computer unit 140 determines whether or not the received data matches the confirmation condition registered in the RAM 143 (step S2).
  • the identification data of the drug syringe 200 that can be used is registered as the confirmation condition
  • the identification data received wirelessly from the RFID tag 230 is registered as the confirmation condition.
  • a guidance message such as “Not registered as a possible syringe, check if it can be used” is displayed on the liquid crystal display 104 as a confirmation warning and is also output as sound from the speaker unit 105 (step S3).
  • step S2 the serial number received wirelessly from the RFID tag 230 and the serial number registered in the RAM 143 are collated.
  • a guidance message such as “This syringe has been used in the past. New V, use the product! / ⁇ ” is displayed as a confirmation warning on the LCD display 104. Since it is output from the speaker unit 105 (step S3), it is possible to easily and surely prevent a medical error that the chemical syringe 200 that should be discarded after one use is used many times.
  • the recorded data received wirelessly from the RFID tag 230 of the appropriate chemical syringe 200 to the chemical injection device 100 was, for example, “Contrast syringe manufactured by (manufacturer) — (name) was attached.
  • ⁇ Production number ⁇ , chemical name ⁇ , chemical type ⁇ , volume ⁇ , pressure resistance ⁇ ... '' is displayed on the liquid crystal display 104 (step S6), so the operator can use various chemical syringes 200, etc. Data can be confirmed easily and reliably.
  • the recorded data received wirelessly from the RFID tag 230 of the chemical syringe 200 to the chemical injection device 100 includes "pressure resistance”, “capacity”, and "variable pattern that changes the contrast agent injection speed over time”. If the control data is included, the control data is set in the RAM 143 of the converter unit 140 (step S7). If the control data is set in the record data received wirelessly from the RFID tag 230 !, the default control data is set.
  • step S8 transmits the start of work to the CT scanner 300 (step S11).
  • the CT scanner 300 that has received the work start data from the chemical injection device 100 in this way (step T2) returns the work start to the chemical injection device 100 and executes the imaging operation. (Step ⁇ 8).
  • the imaging of the CT scanner 300 follows the chemical injection of the chemical injection device 100.
  • the chemical injection device 100 is ready as described above (steps S8 to S10), and the CT scanner 300 Even when the start of imaging is input (step Tl), the chemical injection of the chemical injection device 100 follows the imaging of the CT scanner 300 (steps T4, T6 ⁇ , S9, S18 ⁇ ).
  • a fluoroscopic image can be taken at an accurate timing from a subject who is injected with a contrast medium at an appropriate timing.
  • step S18 when a series of operations of chemical injection is executed (from step S18), the injection start force elapsed time is measured (step S18). S19), the piston drive mechanism 116 is controlled in real time in accordance with the elapsed time and the control data received wirelessly from the RFID tag 230 (step S22).
  • variable pattern that changes the injection speed of the contrast agent over time
  • the variable pattern corresponds to the variable pattern.
  • the operating speed of the piston drive mechanism 116 is changed over time.
  • the piston drive mechanism 116 is driven as described above, the stress detected by the load cell 118 is received in real time by the computer unit 140 (step S20). Then, the injection pressure of the chemical solution is calculated from the detected stress of the load cell 118 corresponding to the viscosity of the chemical solution received wirelessly from the RFID tag 230 and the inner diameter of the cylinder member 210 (step S21). The piston drive mechanism 116 is controlled in real time so as to satisfy the pressure range wirelessly received from 230 (step S22).
  • step S23 If the injection pressure becomes abnormal pressure, a confirmation warning is output and the injection operation is forcibly stopped (step S23), thus preventing a medical error in which a chemical solution is injected with abnormal pressure. can do.
  • the internal diameter of the cylinder member 210 and the viscosity of the chemical solution are not limited to only the stress pressing the piston member 220 of the chemical solution syringe 200. Force that requires various data Such various data are input to the chemical injection device 100 by the RFID tag 230. For this reason, the chemical injection device 100 can accurately detect the injection pressure for each chemical solution together with the chemical syringe 200 without requiring a complicated operation of manually inputting various data into the chemical injection device 100. .
  • the RFID tag 230 Will be located above or below.
  • the RFID tag 230 and the RFID reader 134 do not communicate wirelessly because none of the first and second antenna sheets 135 and 136 are adjacent in parallel (Step Sl). .
  • step Sl when the RFID tag 230 is positioned below, the RFID tag 230 is adjacent to the RFID reader 134 in parallel. In this position, since the electromagnetic shielding sheet 137 is positioned between the RFID tag 230 and the RFID reader 134, the RFID tag 230 and the antenna sheets 135 and 136 are not electromagnetically coupled. And RFID reader 134 do not communicate wirelessly (step Sl). For this reason, in the chemical injection device 100 of this embodiment, the cylinder holding member 120 is appropriately held by the flange holding member 120, and the injection operation is executed in this state, and the cylinder member 210 is automatically destroyed. It can be surely prevented.
  • step S18 the RFID tag 230 is always detected by the RFID reader 134 (step S18). If the above detection is interrupted before completion of the injection operation (step S32) (step S18), the injection operation by the piston drive mechanism 116 is stopped (step S28).
  • Step S26 Data is sent to the canna 300 (steps S25, S28).
  • step T10 When the CT scanner 300 receives data on the occurrence of an error (step T10), the error occurrence is output as a confirmation warning on the guidance display (step T16). The imaging operation is stopped (step ⁇ 18).
  • the chemical injection syringe 200 is appropriately held, and the chemical injection can be automatically prevented from being executed in a state, and the chemical injection is performed during the chemical injection. Even when the syringe 200 has fallen out of the appropriate position force, the chemical injection can be automatically stopped.
  • the mechanism for detecting the appropriate mounting of the chemical syringe 200 in this way is formed by the RFID tag ⁇ readers 230 and 130 for transferring various data from the chemical syringe 200 to the chemical injection device 100. Therefore, it is possible to detect appropriate attachment of the chemical syringe 200 with a simple structure without requiring a dedicated sensor mechanism or the like.
  • the chemical syringe 200 when the chemical syringe 200 is properly attached to the chemical injection device 100, it is optional whether the RFID tag 230 is positioned on the left side of the force on the right side. Alternatively, it can be electromagnetically coupled to the RFID reader 134 via the second antenna sheets 135 and 136.
  • the first and second antenna sheets 135 and 136 for detecting the RFID tag 230 on both the left and right sides in this way are off-the-shelf products that are mass-produced together with the RFID tag 230, and are the main body holding members.
  • the 114 modification only forms the through-hole 130. Therefore, the chemical injection device 100 of this embodiment has good productivity.
  • the chemical injection device 100 and the CT scanner 300 detect the occurrence of an abnormality when the preparation is completed (steps S10, T3), or detect the occurrence of an abnormality during the execution of the operation. Even so (Step S23, ⁇ 9), the abnormality is output (Step S26, ⁇ 16), and the operation is stopped (Step S28, ⁇ 18).
  • step S29, Tl l Even when an operation stop is input to one side (step S29, Tl l), the operation stop is executed (step S28, ⁇ 18) and also sent to the other (step S27). , ⁇ 17) On the other side of receiving the data (steps T13 and S31), the operation is stopped (steps T18 and S28).
  • step S32, T14 When the operation completion is detected on one side (steps S32, T14), the operation end is executed (step S33, ⁇ 19), and the operation end is transmitted to the other side ( In step S34, ⁇ 20), on the other side of receiving the data (step T12, S31), the operation stop is executed (step T18, S28).
  • step S33, S28 when the injection operation ends normally or abnormally as described above (steps S33, S28), the identification data wirelessly received from the RFID tag 230 of the liquid syringe 200 is new. Is registered in the RAM 143 as the confirmation condition (step S36).
  • the RFID reader 134 and the first and second antenna sheets 135 and 136 are mounted on the resin support member 131 made of resin, and the metal main body is held. Since the member 114 is separated from the member 114 to a predetermined spatial distance, electromagnetic coupling between the RFID reader 134 and the RFID tag 230 via the first and second antenna sheets 135 and 136 is hindered by the metal body support member 114. It is not possible.
  • the ferrite sheet 138 force S is attached to the lower surface of the first and second antenna sheets 135 and 136, the electromagnetic field below the first and second antenna sheets 135 and 136 is ferrite.
  • the electromagnetic coupling between the RFID tag 230 and the antenna sheet 131 is not hindered by the metal body support member 114 because the sheet 138 is passed.
  • a recess 139 corresponding to the thickness of the various sheets 135 to 138 is formed on the surface of the reader support member 131, and the upper surface of the electromagnetic shielding sheet 137 and the inner surface of the support recess 132 are flush with each other. Therefore, the thickness of the various sheets 135 to 138 does not hinder the holding of the chemical syringe 200.
  • the tag antenna 233 of the RFID tag 230 of the present embodiment is formed as an elongated loop antenna. Therefore, if the tag antenna 233 is bent in the longitudinal direction, the communication performance is extremely lowered.
  • the length of the cylinder member 210 and the RFID tag 230 is Since the hand directions match, the tag antenna 233 is only slightly bent in the short direction but not in the longitudinal direction, and the communication performance is good.
  • the RFID tag 230 is a force whose communication performance is hindered even by liquid. As described above, the RF ID tag 230 needs to be attached to the cylinder member 210 in a state in which the longitudinal direction coincides with the cylinder member 210. It is difficult to place the RFID tag 230 at a position that is filled with the chemical solution.
  • the liquid syringe 200 of this embodiment is formed with a sufficient thickness of the cylinder member 210 force Sl. 5 mm to 2.0 mm, the RFID tag 230 attached to the surface of the drug syringe 200 is a cylinder. Wireless communication can be satisfactorily performed without being hindered by the chemical solution filled in the part 210.
  • the present invention is not limited to the above embodiment, and various modifications are allowed without departing from the spirit of the present invention.
  • the chemical syringe 200 is formed vertically symmetrical and left-right symmetrically, and the RFID tag 230 is located on the left or right side in a state where it is properly attached to the chemical injection device 100.
  • the RFID tag 230 is attached to the left side of the outer peripheral surface of the cylinder body 211 of the chemical syringe 200 whose vertical direction is regulated, and the right second is inserted in the chemical injection device 100. Only the left first antenna sheet 135 can be joined to the R FID reader 134 without attaching the antenna sheet 136 (not shown).
  • a convex portion is formed on at least one of the front surface and the rear surface of the holding slit of the fixed holding member, and the convex portion It is also possible to engage with a recess formed only in the lower part of at least one of the front and rear surfaces of the cylinder flange (not shown). In this case, even when the flat portion of the cylinder flange is positioned up and down, the chemical syringe is not attached to the chemical injection device in the opposite state.
  • the vertical direction of the chemical syringe 200 is defined as described above, for example, when the upper side is viewed through the cylinder member 210 filled with a transparent chemical solution, the predetermined shape is obtained. It is possible that the design force is divided into the lower surface of the cylinder member 210 and the inner surface of the holding recess 115 of the main body holding member 114 (not shown). In this case, it can be confirmed by both the RFID reader 134 and the above-mentioned pattern whether the chemical syringe that has been regulated upward and downward is properly held! The force filled with can also be confirmed on the design.
  • the antenna sheets 135 and 136 are shielded by the electromagnetic shielding sheet 137 except for a portion facing the RF ID tag 230 of the chemical syringe 200 appropriately attached to the chemical injection device 100. Illustrated. However, the electromagnetic shielding sheet 137 can be omitted.
  • the RFID tag 230 can wirelessly communicate with the RFI D reader 134 as long as the RFID tag 230 is located in the lower half of the chemical syringe 200. Therefore, the cylinder at a specific rotation position centered on the axial center of the chemical syringe 200 It is difficult to detect whether the flange 213 is held by the flange holding member 121.
  • the reader antenna is positioned on the upper surface of the RFID reader 134, and the first and second antenna sheets 135 and 136 are in close contact with each other and are well electromagnetically coupled. did. However, if electromagnetic coupling is well realized, RFID reader 134 It is also possible to position the reader antenna on the lower surface of the.
  • the first and second antenna sheets 135 and 136 are both in close contact with the upper surface of the RFID reader 134 from above.
  • the lower surface of the end of the first and second antenna sheets 135 and 136 and the upper surface of the R FID reader 134 are opposed to each other as long as electromagnetic coupling is satisfactorily realized. (Not shown).
  • first and second antenna sheets 135 and 136 are bent downward so as to face the side surface of the RFID reader 134, and the first and second antenna sheets 135 and 136 It is not impossible for the end portion to be bent in a crank shape so as to face the side surface and the lower surface of the RFID reader 134 (not shown).
  • the right edge of the first antenna sheet 135 is placed on the left outer edge of the upper surface of the RFID reader 134.
  • the first antenna sheet 135 and the right edge of the second antenna sheet 136 by bringing the outermost edge of the second antenna sheet 136 into close contact with the right outer edge.
  • the left end of the first antenna sheet 135 and the right end of the second antenna sheet 136 are positioned above the desired position.
  • the entire right end of the first antenna sheet 135 is in close contact with the entire upper surface of the RFID reader 134 and the entire left end of the second antenna sheet 136 is in close contact. It is suitable to leave.
  • the leader support member 131 made of resin is formed as one independent component.
  • the leader support member 162 made of resin and the head nosing 163 are integrally formed, like the injection head 161 of the chemical injection device 160 of the chemical injection system 1100 illustrated in FIG. It is.
  • the recess 139 in which various sheets 135 to 137 are located is formed on the surface thereof.
  • the recess 139 as described above can be omitted.
  • a chemical injection device (not shown) can also be implemented.
  • the recording data detected by the RFID reader 134 from the RFID tag 230 is displayed on the liquid crystal display 104 of the injection control unit 101 separate from the injection head 110. Illustrated. However, as shown in FIG. 15, it is also possible to mount a display device 171 such as a liquid crystal display on the injection head 170 and display the recorded data of the RFID tag 230 there.
  • the fixed holding member 122 of the pair of left and right flange holding members 121 is illustrated as being separated to the left and right together with the movable holding member 123.
  • the left and right fixed holding members are integrally connected at the lower side and only the movable holding member 123 is separated from the left and right (not shown), and as shown in FIG.
  • the main body holding member 174 integrally with only the fixed holding member 173 where the holding member is not movable.
  • the flange holding mechanism 181 is unitized by supporting the pair of left and right flange holding members 121 with a dedicated metal frame 180, and the flange holding mechanism 181 is made of resin. It is also possible to connect the main body holding member 182 to the rear end of the main body holding member 182 and directly attach the RFID reader 134, the first and second antenna sheets 135, 136, and the like to the main body holding member 182.
  • the RFID tag 230 is illustrated as being attached to the cylinder member 210 in a state in which the longitudinal direction coincides. However, for example, it is impossible to attach the RFI D tag 230 to the outer peripheral surface of the cylinder member 210 so as to be wound in the longitudinal direction (not shown).
  • the thickness of the RFID tag 230 is not reduced by the chemical solution.
  • An example is shown in which the entire da member 210 is formed.
  • the thickness of the cylinder member is not sufficient, it is possible to form only the part where the RFID tag 230 is attached to a predetermined thickness, and the RFID tag 230 can be used via a resin base. It is also possible to attach the tag 230 to the cylinder member (both not shown).
  • a magnetic material such as ferrite having a high magnetic permeability is formed in a sheet shape substantially the same as that of the RFID tag 230, and the RFID tag 230 is disposed on the outer peripheral surface of the cylinder member 210 via the magnetic material. It is also possible (not shown). In this case, since the electromagnetic field on the back side of the RFID tag 230 passes through the magnetic material, the electromagnetic field can be prevented from being absorbed by the chemical solution, and the communication performance of the RFID tag 230 can be improved.
  • the size of the chemical syringe 200 attached to the chemical injection device 100 is one.
  • the chemical syringe 200 has a plurality of sizes, and as shown in FIG. 17, a cylinder adapter 400 is prepared for each chemical syringe 200 of a size other than the maximum. Yes.
  • the maximum size chemical solution syringe 200 is directly attached to the chemical solution injection device 100, and the non-maximum size chemical solution syringe 200 is attached via the cylinder adapter 400. Therefore, when the cylinder adapter 400 is properly attached to the chemical injection device 100, the left and right outer surfaces and inner surfaces of the cylinder adapter 400 facing the left end of the first antenna sheet 135 or the right end of the second antenna sheet 136 in parallel are arranged. However, it is possible to attach the RFID tag 230.
  • the chemical injection device 100 can confirm whether both the cylinder adapter 400 and the chemical syringe 200 are properly attached, and the recording data of the cylinder adapter 400 and the chemical syringe 200 can be checked. By checking the recorded data, it can be confirmed that the combination of the chemical syringe 200 and the cylinder adapter 400 is appropriate.
  • the chemical injection device 100 can use both the cylinder adapter 400 and the chemical syringe 200 with one RFID reader 134. Wireless communication with RFID tag 230.
  • the RFID tag 230 of the chemical solution syringe 200 and the chemical solution Since the first and second antenna sheets 135 and 136 of the liquid injection device 100 face each other via the cylinder adapter 400, the cylinder adapter 400 performs wireless communication between the RFID tag 230 and the RF ID reader 134. It is preferable to form it with a non-magnetic material such as rosin that does not inhibit.
  • the chemical injection device 100 wirelessly receives the manufacturing number for each individual from the RFID tag 230 of the chemical syringe 200 used by the RFID reader 134.
  • This example illustrates that a confirmation warning is output when a new serially received serial number is stored.
  • the RFID tag 230 of the chemical syringe 200 is set as a product in which data can be added, and the chemical injection device 100 records the used information in the RFID tag 230 of the chemical syringe 200 that has been installed and the injection operation has been executed. It is also possible to output a confirmation warning when used is received wirelessly from the RFID tag 230 of the new chemical syringe 200.
  • the chemical injection device 100 wirelessly receives control data for chemical injection from the RFID tag 230 of the chemical syringe 200, and the chemical injection device 100 controls the chemical injection operation according to the control data. Exemplified only to do. However, the chemical injection device 100 may control the chemical injection operation corresponding to a combination of control data received wirelessly from the RFID tag 230 of the chemical syringe 200 and control data input from the operation panel 103 or the like. Is possible.
  • a time-varying pattern of chemical injection is recorded in the RFID tag 230 of the chemical syringe 200, and when an imaging region by the CT scanner 300 is input on the operation panel 103 or the like, It is also possible to adjust the variable pattern corresponding to the imaging region.
  • the chemical injection device 100 that has registered the serial number received wirelessly from the RFID tag 230 of the chemical syringe 200 after completing the injection operation ends various operations.
  • the removal of the chemical syringe 200 is detected by the RFID reader 134 using the chemical solution injection device 100 force RFID reader 134 that has completed the injection operation and the registration of the manufacturing number data as described above, the piston drive mechanism 116 is moved to the initial position of the tail. It is also possible to automatically retract
  • the piston drive mechanism 116 is automatically placed at an appropriate position when the chemical syringe 200 is attached to and detached from the chemical injection device 100 at an appropriate timing. Therefore, it is possible to further improve the convenience of the chemical injection device 100 that needs to be used.
  • the force that the manufacturer assumes to record various data in the RFID tag 230 of the chemical syringe 200 For example, the chemical syringe 200 of the medical syringe 200 in a medical site such as a hospital where the chemical syringe 200 is used. Various data can be recorded on the RFID tag 230.
  • the chemical solution injection device 100 only illustrates pushing the piston member 220 into the cylinder member 210 of the chemical syringe 200 in order to inject the chemical solution into the subject.
  • a separate chemical solution pack is extended.
  • the chemical injection device 100 can also fill the chemical syringe 200 with the chemical (not shown).
  • the CT scanner 300 is used as the fluoroscopic imaging device, and the chemical solution injection device 100 injects the CT contrast agent.
  • a fluoroscopic imaging device It is also possible to use an MRI device or PET device, and the chemical solution injection device can inject the contrast medium for it.
  • the drive source of the piston drive mechanism is a DC (Direct Current) motor. It can also be formed with an ultrasonic motor, linear motor, or solenoid !, or the display device can be formed with an EL (Electro-Luminescence) display or plasma display (not shown).
  • DC Direct Current
  • the display device can be formed with an EL (Electro-Luminescence) display or plasma display (not shown).
  • the CPU 141 operates corresponding to the computer program stored in the RAM 143 and the like, and various means are logically realized as various functions of the chemical liquid injector 100.
  • each of these various means can be formed as unique hardware, and a part can be stored in the RAM 143 as software and a part can be formed as node hardware.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Selon l'invention, une étiquette RFID (230) est fixée à un côté d'un corps de cylindre (211) d'une seringue à liquide médical (200). Un dispositif d'injection de liquide médical (100) présente un élément de retenue de corps (114) fait de métal qui maintient la seringue à liquide médical (200) contre sa face supérieure. Un orifice de passage (130) est formé dans l'élément de retenue de corps (114). Un élément de retenue de lecteur (131) fait de résine est mis en place dans l'orifice de passage (130). Un lecteur RFID (134) est mis en place sur l'élément de retenue de lecteur (131), et des feuilles d'antenne (135, 136) sont connectées aux deux côtés du lecteur RFID (134). La face supérieure des parties différentes des extrémités extérieures des feuilles d'antenne (135, 136) et la face supérieure du lecteur RFID (134) sont blindées par une feuille de blindage électromagnétique (137).
PCT/JP2007/057493 2006-04-05 2007-04-03 Système d'injection de liquide médical WO2007114446A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008508703A JP5063590B2 (ja) 2006-04-05 2007-04-03 薬液注入システム

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JP2006104619 2006-04-05
JP2006-104619 2006-04-05

Publications (1)

Publication Number Publication Date
WO2007114446A1 true WO2007114446A1 (fr) 2007-10-11

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Cited By (7)

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WO2009118505A1 (fr) 2008-03-27 2009-10-01 British Telecommunications Public Limited Company Câble étiqueté
WO2009118529A1 (fr) 2008-03-27 2009-10-01 British Telecommunications Public Limited Company Lecteur de composants de supports d'enregistrement
WO2010070799A1 (fr) * 2008-12-16 2010-06-24 パナソニック株式会社 Dispositif d'administration de médicament
KR20170110576A (ko) * 2014-12-23 2017-10-11 히프라 사이언티픽, 에스.엘.유 약품 투여용 장치
WO2019064901A1 (fr) * 2017-09-29 2019-04-04 テルモ株式会社 Pompe à seringue
JP2019063252A (ja) * 2017-09-29 2019-04-25 テルモ株式会社 シリンジポンプ
EP4052743A1 (fr) * 2021-03-01 2022-09-07 Ypsomed AG Informations de code pour dispositif d'administration de médicaments

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