WO2007026684A1 - Système d’infusion d’une solution de médicaments - Google Patents

Système d’infusion d’une solution de médicaments Download PDF

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Publication number
WO2007026684A1
WO2007026684A1 PCT/JP2006/316953 JP2006316953W WO2007026684A1 WO 2007026684 A1 WO2007026684 A1 WO 2007026684A1 JP 2006316953 W JP2006316953 W JP 2006316953W WO 2007026684 A1 WO2007026684 A1 WO 2007026684A1
Authority
WO
WIPO (PCT)
Prior art keywords
holding
flange
recess
chemical
cylinder
Prior art date
Application number
PCT/JP2006/316953
Other languages
English (en)
Japanese (ja)
Inventor
Shigeru Nemoto
Isao Kimura
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 JP2007533251A priority Critical patent/JP4833984B2/ja
Publication of WO2007026684A1 publication Critical patent/WO2007026684A1/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
    • A61M5/007—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 for contrast media
    • 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
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6045—General characteristics of the apparatus with identification means having complementary physical shapes for indexing or registration purposes
    • 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 filled in a chemical solution syringe into a subject using 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.
  • CT scanners and MRI Magnetic Magnets
  • MRI Magnetic Magnets
  • PET Positron Emission Tomography
  • ultrasonic diagnostic equipment CT angio equipment
  • MRA MRA
  • a chemical solution such as a contrast medium or physiological saline may be injected into the subject, and a chemical solution injection device that automatically performs this injection has also been put into practical use! .
  • Such a chemical liquid injector includes a piston drive mechanism including a drive motor and a slider mechanism, for example.
  • a chemical syringe is detachably attached to the chemical injection device.
  • 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 is formed in a cylindrical shape with the front end closed and the rear end open.
  • a conduit portion is provided at the center of the front end, and an annular cylinder flange is formed on the outer periphery of the rear end.
  • the piston member is slidably inserted from the rear end of the cylinder member.
  • Such chemical syringes include prefilled types and types filled with anything.
  • the cylinder member is filled with chemicals and the whole is sealed in the packing material.
  • the user fills the cylinder member with a desired chemical solution.
  • prefilled type An explanation will be given by taking the medical solution syringe as an example.
  • 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 takes out the chemical solution syringe from the packaging material. The operator attaches the chemical syringe to the subject via the extension tube and attaches it to the chemical injection device.
  • the chemical liquid injector is mounted by holding the cylinder flange in the flange holding mechanism of the chemical liquid injector. In such a state, the chemical liquid injector operates the piston drive mechanism in response to a predetermined operation by the operator. As a result, the piston member is pushed into the cylinder member, so that the drug solution is injected into the subject such as the drug solution syringe.
  • the operator determines the injection speed, the total injection amount, etc. in consideration of the type of the chemical solution and inputs these data to the chemical injection device. Then, the chemical injection device injects the chemical into the subject according to the input data. For example, if a contrast medium is injected as a chemical solution, the contrast level of the subject changes, so that a good fluoroscopic image can be captured by the fluoroscopic imaging device.
  • the contrast agent has a high viscosity. Since the chemical liquid injector can push the piston member into the cylinder member at a high pressure, it is suitable for injecting a contrast medium. However, in order to push the piston member into the cylinder member at a high pressure, it is also necessary to hold the cylinder member firmly.
  • the chemical injection device invented and implemented by the present applicant has a pair of metal flange holding members supported so as to be freely opened and closed.
  • the pair of flange holding members individually hold the left part and the right part of the cylinder flange of the chemical liquid syringe attached to the chemical liquid injector (see, for example, Japanese Patent Application Laid-Open No. 2004-187849).
  • the cylinder flange of the chemical liquid syringe can be firmly held by the pair of metal flange holding members.
  • the piston member can be pushed into the cylinder member at a high pressure, and a high-viscosity contrast agent or the like can be injected well into the subject.
  • the movable flange holding member as described above has a complicated structure, which reduces the productivity of the chemical liquid injector. Further, the cylinder member may not be sufficiently held only by the flange holding member as described above. For this reason, it is desired to hold the cylinder member by a mechanism different from the above-described flange holding member.
  • the chemical injection device is configured so that the maximum size chemical syringe is directly attached, and the non-maximum size chemical syringe is attached via the cylinder adapter.
  • the cylinder adapter to hold the chemical liquid syringe well with a simple structure and the cylinder adapter to be held well with a simple structure to the chemical liquid injector.
  • the present invention has been made in view of the above-described problems, and provides a chemical solution injection system that can favorably hold a cylinder member of a chemical solution syringe in a chemical solution injection device with a simple structure. Objective.
  • the chemical solution injection system includes a chemical solution syringe and a chemical solution injection device.
  • the chemical syringe is inserted into a cylinder member on which a cylinder flange is formed so that the piston member force S can slide freely.
  • the chemical injection device pushes the piston member into the cylinder member with a piston drive mechanism.
  • the chemical liquid injector has a flange holding mechanism and a holding projection.
  • a holding recess, an insertion recess, and a communication recess are formed in at least one of the front surface and the rear surface of the cylinder flange.
  • the flange holding mechanism of the chemical solution injector holds the cylinder flange from the front and back with a holding slit, and the holding convex part is formed on at least one of the front surface and the rear surface of the holding slit.
  • the holding concave portion of the chemical syringe is engaged with the holding convex portion in a predetermined state of rotation around the axis, and the insertion concave portion is The holding convex portion is inserted while rotating from a predetermined state to a certain angle.
  • the communication concave portion is formed by connecting the insertion concave portion and the holding concave portion, and the holding convex portion moves through the inside.
  • the chemical solution syringe is attached to the chemical solution injection device so that the holding convex portion is inserted into the insertion concave portion.
  • the holding convex portion relatively moves from the insertion concave portion to the communication concave portion and engages with the holding concave portion. Due to the engagement between the holding convex portion and the holding concave portion, the chemical syringe is held in the chemical injection device.
  • the chemical liquid injection system includes a chemical liquid syringe, a chemical liquid injection device, and a cylinder adapter.
  • An adapter flange is formed in the cylinder adapter, and the chemical liquid injector pushes the piston member of the chemical liquid syringe attached via the cylinder adapter into the cylinder member by the piston drive mechanism.
  • the cylinder adapter has a flange holding mechanism and a holding convex portion, and the chemical solution syringe has at least one of the front surface and the rear surface of the cylinder flange.
  • a holding recess, an insertion recess, and a communication recess are formed.
  • the flange holding mechanism of the cylinder adapter holds the cylinder flange from the front and back with a holding slit, and the holding convex part is formed on at least one of the front surface and the rear surface of the holding slit.
  • the holding concave portion of the chemical syringe is engaged with the holding convex portion in a predetermined state of rotation about the axis, and the holding convex portion is inserted into the insertion concave portion while being rotated from the predetermined state to a certain angle.
  • the communication concave portion is formed by connecting the insertion concave portion and the holding concave portion, and the holding convex portion moves through the inside.
  • the chemical syringe is attached to the cylinder adapter so that the holding convex portion is inserted into the insertion concave portion.
  • the holding convex portion relatively moves through the insertion concave force communication concave portion and engages with the holding concave portion.
  • the chemical syringe is held by the cylinder adapter by the engagement between the holding convex portion and the holding concave portion.
  • the chemical solution injection device has a flange holding mechanism and a holding convex portion
  • the cylinder adapter has at least a front surface and a rear surface of the adapter flange.
  • a holding recess, an insertion recess, and a communication recess are formed.
  • the flange holding mechanism of the chemical liquid injector holds the adapter flange from the front and back with a holding slit, and the holding convex part is formed on at least one of the front surface and the rear surface of the holding slit.
  • the holding concave portion of the cylinder adapter is engaged with the holding convex portion in a predetermined state of rotation about the axis, and the holding convex portion is inserted into the insertion concave portion while being rotated from the predetermined state to a certain angle.
  • the communication concave portion is formed by connecting the insertion concave portion and the holding concave portion, and the holding convex portion moves inside the communication concave portion.
  • the holding convex portion when the cylinder adapter is attached to the chemical injection device in a predetermined state of rotation about the axis, the holding convex portion is inserted into the insertion recess.
  • the holding convex portion When the cylinder adapter is rotated to a certain angle, the holding convex portion relatively moves from the insertion concave portion to the communication concave portion and engages with the holding concave portion.
  • the cylinder adapter is held by the chemical injection device by the engagement between the holding convex portion and the holding concave portion.
  • various means may be formed so as to realize the function.
  • dedicated hardware that exhibits a predetermined function, and a predetermined function provided by a computer program.
  • the various constituent elements do not have to be individually independent.
  • a plurality of components are formed as one member, a component is formed of a plurality of members, a component is a part of another component, It is also possible that a part of one component overlaps a part of another component.
  • the direction such as front and rear, up and down is defined, but this is defined for convenience in order to briefly describe the relative positional relationship of the components of the present invention,
  • the direction at the time of manufacture and use when implementing the present invention is not limited.
  • the chemical syringe is mounted on the chemical injection device so that the holding convex portion is inserted into the insertion concave portion, and the holding is performed when the chemical syringe is rotated to a certain angle.
  • the convex part is inserted into the concave concave part. Since the chemical syringe is held by the chemical injection device by the engagement between the convex portion and the holding recess, the cylinder member of the chemical syringe can be favorably held by the chemical injection device with a simple structure.
  • the holding convex portion is provided.
  • the insertion recess force moves through the communication recess and engages with the holding recess, and the chemical syringe is held by the cylinder adapter by the engagement between the holding projection and the holding recess. It can be held well with a simple structure.
  • the holding convex portion is inserted into the insertion recess, and the cylinder adapter Is rotated to a certain angle, the holding convex portion moves from the insertion concave portion to the communication concave portion and engages with the holding concave portion, and the cylinder adapter is held by the chemical injection device by the engagement between the holding convex portion and the holding concave portion. Therefore, the cylinder adapter can be satisfactorily held by the chemical injection device with a simple structure.
  • FIG. 1A is a schematic front view of an essential part showing a procedure for attaching a chemical syringe to a chemical injection device according to an embodiment of the present invention.
  • FIG. 1B is a schematic front view of an essential part showing a procedure for attaching a chemical syringe to the chemical injection device of one embodiment of the present invention.
  • FIG. 1C is a schematic front view of an essential part showing a procedure for attaching a chemical syringe to the chemical injection device of one 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 of the chemical injection device.
  • 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 image device.
  • FIG. 5 is a block diagram showing a circuit structure of the chemical solution injection system.
  • FIG. 6 is a perspective view showing an appearance of a chemical syringe.
  • FIG. 7A is a schematic front view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the first modified example.
  • FIG. 7B is a schematic front view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the first modified example.
  • FIG. 7C is a schematic front view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the first modified example.
  • FIG. 8A is a schematic front view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the second modified example.
  • FIG. 8B is a schematic front view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the second modified example.
  • FIG. 8C is a schematic front view of the main part showing the procedure for attaching the chemical syringe to the chemical injection device of the second modified example.
  • FIG. 10A is a schematic cross-sectional plan view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the third modified example.
  • FIG. 10B is a schematic cross-sectional plan view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the third modified example.
  • FIG. 11A A schematic cross-sectional plan view showing the main part of the drug syringe of the fourth modified example.
  • FIG. 11B A schematic cross-sectional plan view showing the main part of the chemical liquid injector of the fourth modified example.
  • FIG. 12A is a schematic cross-sectional plan view of the main part showing the procedure for mounting the chemical syringe on the chemical injection device of the fourth modified example.
  • FIG. 12B is a schematic cross-sectional plan view of the main part showing a procedure for attaching the chemical syringe to the chemical injection device of the fourth modified example.
  • FIG. 13 A perspective view showing a state in which a chemical syringe is attached to the injection head of the chemical injection device of the fifth modified example via a cylinder adapter.
  • FIG. 14A is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the sixth modified example on the chemical injection device.
  • FIG. 14B is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the sixth modified example on the chemical injection device.
  • FIG. 15A is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the seventh modified example on the chemical injection device.
  • FIG. 15B is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the seventh modified example on the chemical injection device.
  • FIG. 16A is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the eighth modification on the chemical injection device.
  • FIG. 16B is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the eighth modification on the chemical injection device.
  • FIG. 17 is a schematic front view of the main part showing the procedure for mounting the chemical syringe of the ninth modification on the chemical injection device.
  • the chemical injection system 1000 of this embodiment includes a chemical injection device 100, a chemical syringe 200, and a CT scanner 300 that is a fluoroscopic imaging device, which will be described in detail later. Then, a medical solution such as a contrast medium is injected into a subject (not shown), and a fluoroscopic image of the subject is taken.
  • a medical solution such as a contrast medium is injected into a subject (not shown), and a fluoroscopic image of the subject is taken.
  • the CT scanner 300 includes a fluoroscopic imaging unit 301 and an imaging control unit 302.
  • the fluoroscopic imaging unit 301 and the imaging control unit 302 are connected via a communication network 303 by wire.
  • the fluoroscopic imaging unit 301 captures a fluoroscopic image of the subject, and 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.
  • the piston member 220 is slidably inserted into the cylinder member 210.
  • the cylinder member 210 has a cylindrical cylinder body 211 whose front end is closed, and a conduit portion 212 is formed at the center of the closed front end.
  • the rear end of the cylinder main body 211 of the cylinder member 210 is opened, and the piston member 220 is slidably inserted into the cylinder main body 211 by the force of the opened rear end.
  • the cylinder member 210 has an annular cylinder flange 213 formed integrally with the cylinder body 211 on the outer periphery of the rear end of the cylinder body 211.
  • the piston member 220 has an annular piston flange 222 formed integrally with the piston main body 221 on the outer periphery of the rear end of the piston main body 222.
  • the chemical injection device 100 includes an injection control unit configured separately from each other. 101 and an injection head 110. Injection control unit 101 and injection head 110 are wire-connected by communication cable 102.
  • the injection head 110 drives the chemical solution syringe 200 to be attached to inject the chemical solution into the subject.
  • 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 a movable arm 112. As shown in FIG. 2, a semi-cylindrical recess 114 for detachably mounting the cylinder member 210 of the chemical liquid syringe 200 is formed on the upper surface of the head main body 113 as a main body holding member.
  • a flange holding mechanism 120 for detachably holding the cylinder flange 213 of the chemical syringe 200 is disposed in front of the recess 114.
  • a piston drive mechanism 116 that holds and slides the piston flange 222 is disposed at the rear of the recess 114.
  • the flange holding mechanism 120 has one fixed holding member 121 and a pair of left and right movable holding members 122 as shown in FIGS. 1A to 1C and FIG.
  • the fixed holding member 121 is fixed to the bottom of the recess 114 of the injection head 110.
  • One movable holding member 122 is supported at the left and right ends of the fixed holding member 121 so as to be freely opened and closed.
  • a holding slit 123 into which the cylinder flange 213 of the chemical syringe 200 is inserted is formed in an arc shape.
  • the front and rear surfaces of the cylinder flange 213 are held by the holding slit 123.
  • a holding convex portion 125 is formed at the center of the front surface of the holding slit 123 of the fixed holding member 121.
  • the drug solution syringe 200 of the present embodiment is mounted on the drug solution injection device 100 in a predetermined state rotated about its axis, and the top, bottom, left and right are defined in this state. Therefore, the cylinder flange 213 is formed asymmetrically in the vertical direction and the horizontal direction. More specifically, as shown in FIGS. 1A to 1C and FIG. 6, the cylinder flange 213 is formed at a flat portion 215 formed at the upper portion of the outer peripheral surface 214 and at positions below the left and right ends of the outer peripheral surface 214, respectively. It has a pair of engaging recesses 216 and a recess 230 formed asymmetrically on the lower front side.
  • the flat portion 215 is formed in a shape obtained by partially cutting a circular outer peripheral surface of the cylinder flange 213 into a straight line, and prevents the liquid syringe 200 from rolling unnecessarily.
  • the recess 230 has a holding recess 231, an insertion recess 232, and a communication recess 233, and has a bent shape as a whole.
  • the holding concave portion 231 is formed below the center of the chemical syringe 200, and the holding convex portion 125 engages with the chemical syringe 200 in an appropriate vertical direction.
  • the insertion recess 232 extends in the radial direction of the chemical liquid syringe 200 at a position shifted to the right from the lower center of the chemical liquid syringe 200 and opens to the outer peripheral surface of the cylinder flange 213. Accordingly, the holding convex portion 125 is inserted with a downward force while the chemical syringe 200 is rotated from a predetermined state to a certain angle.
  • the communication recess 233 is formed to extend in the circumferential direction of the chemical syringe 200 so as to connect the inner end of the insertion recess 232 and the holding recess 231. As a result, when the liquid syringe 200 rotates to a certain angle, the holding convex portion 125 moves between the insertion concave portion 232 and the holding concave portion 231 through the communication concave portion 233.
  • an arc-shaped elastic holding mechanism 127 having protrusions facing inward at both ends is held at the center thereof.
  • the chemical syringe 200 is held in an appropriate position by the elastic holding mechanism 127. More specifically, when the holding convex portion 125 of the flange holding mechanism 120 is positioned in the insertion concave portion 232 and the communication concave portion 233 of the cylinder flange 213, both ends of the elastic holding mechanism 127 are elastically attached to the outer peripheral surface of the cylinder flange 213. In the state where the holding convex portion 125 is positioned in the holding concave portion 231, the protrusions at both ends of the elastic holding mechanism 127 are elastically engaged with the engaging concave portion 216.
  • the liquid syringe 200 of the present embodiment has a state in which the holding convex portion 125 of the chemical liquid injection device 100 is inserted into the insertion concave portion 232 according to the position in the rotational direction centered on the axis as described above.
  • the state of engaging with the recess 231 is defined. For this reason, for example, “Please attach to the injector with this arrow being directly above” or “Please turn the syringe until this arrow is directly above after being attached to the injector” is displayed along with the arrow. It is written on the outer peripheral surface of the cylinder body 211.
  • the piston drive mechanism 116 has an ultrasonic motor 117 that does not generate a magnetic field even during operation as a drive source, and a piston member 220 is attached by a screw mechanism (not shown) or the like. Move the slide.
  • the piston drive mechanism 116 also includes a load cell 118. The load cell 118 detects the pressure that presses the piston member 220.
  • the injection control unit 101 which is 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 data display means, a speaker unit 105, and the like arranged on the front surface of the main body housing 106.
  • the controller unit 107 is connected to the connection connector 108 by wire.
  • each device described above is connected to the computer unit 140, and the computer unit 140 performs integrated control of each device.
  • the computer unit 140 is a so-called one-chip microcomputer, and CPU (Central Processing Unit)
  • ROM Read Only Memory
  • RAM Random Access Memory
  • l / F Interface
  • an appropriate computer program is mounted on the information storage medium such as the ROM 142 by using firmware or the like, and the CPU 141 executes various processing operations corresponding to the computer program.
  • 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. Then, the operator opens the movable holding member 122 of the injection head 110 and attaches the chemical syringe 200 to the recess 114 so that the cylinder flange 213 is inserted therein.
  • the insertion concave portion 232 is directly below (in the direction facing the holding convex portion 125).
  • the cylinder flange 213 is inserted into the holding slit 123 of the flange holding mechanism 120 from above in the state of being positioned at.
  • the protrusions at both ends of the elastic holding mechanism 127 are formed on the cylinder flange 21. 3 is in contact with the outer peripheral surface 214 of inertia.
  • the holding convex portion 125 positioned below the holding slit 123 is also inserted into the insertion concave portion 232 of the cylinder flange 213 by a downward force.
  • the chemical syringe 200 is rotated to a certain angle in the clockwise direction in the illustrated state. Then, the holding convex portion 125 moves from the insertion concave portion 232 to the holding concave portion 231 through the communication concave portion 233. Thus, as shown in FIG. 1C, when the holding convex portion 125 engages with the holding concave portion 231, the chemical syringe 200 cannot move upward. As a result, the chemical solution syringe 200 can be satisfactorily held by the chemical solution injection device 100 with a simple structure.
  • the protrusions at both ends of the elastic holding mechanism 127 are inertially engaged with the engaging concave portion 216 of the cylinder flange 213. Due to the elastic engagement between the elastic holding mechanism 127 and the engaging concave portion 216, the state in which the holding convex portion 125 of the chemical liquid injector 100 is engaged with the holding concave portion 231 of the chemical syringe 200 is maintained. As a result, the state in which the chemical syringe 200 is properly held in the chemical injection device 100 is well maintained.
  • the liquid syringe 200 is also held by the movable holding member 122 by closing the movable holding member 122 while the liquid syringe 200 is properly held by the injection head 110.
  • the chemical solution syringe 200 can be held in the chemical solution injection device 100 more reliably.
  • the flat portion 215 is formed on the outer peripheral surface of the cylinder flange 213 of the chemical syringe 200 in order to prevent unnecessary rolling force S and the like.
  • the flat portion 215 is positioned on the flange holding mechanism 123, the area of the cylinder flange 213 held by the flange holding mechanism 123 decreases, and the cylinder flange 213 may be damaged.
  • the holding projection 125 comes into contact with the outer surface of the cylinder flange 213 unless the holding projection 125 is inserted into the insertion recess 232. It cannot be inserted into the flange holding mechanism 123.
  • the cylinder flange 213 is not inserted into the flange holding mechanism 123 so that the flat portion 215 is positioned in the flange holding mechanism 123, and as a result, damage to the cylinder flange 213 can be prevented.
  • the recess 230 is one side of the cylinder flange 213 (this type In this state, the strength of the cylinder flange 213 is minimally reduced by forming the recess 230.
  • the chemical syringe 200 of the present embodiment has a flat force in the cylinder flange 213 in an inappropriate state where the holding convex portion 125 of the chemical liquid injector 100 is positioned in the insertion concave portion 232 as shown in FIG. 1B.
  • 215 is in a state of being inclined from the position directly above.
  • the flat portion 215 is in a horizontal state immediately above.
  • the cylinder flange 213 is inserted into the flange holding mechanism 123. I can't. Therefore, for example, it is possible to prevent the non-standard chemical solution syringe (not shown) from being attached to the chemical solution injection device 100, such as when the recess 230 is formed in the cylinder flange.
  • the chemical syringe 200 is rotated so that the holding convex portion 125 of the chemical injection device 100 moves from the insertion concave portion 232 through the communication concave portion 233 to the holding concave portion 231. Then, the inertia retaining mechanism 127 that inertially contacts the outer peripheral surface of the cylinder flange 213 is inertially engaged with the engagement recess 216. Can be recognized properly.
  • the engaging recess 216 is formed at a position below both the left and right ends of the cylinder flange 213, and the protrusions at both ends of the elastic holding mechanism 127 are engaged therewith. For this reason, the movable holding member 122 and the elastic holding mechanism 127 can be arranged without difficulty so that both function effectively.
  • the chemical syringe 200 is also visually recognized by the front force.
  • the concave portion 230 is formed so that the holding convex portion 125 moves from the insertion concave portion 232 to the holding concave portion 231 when rotated in the clockwise direction.
  • the concave portion 230 may be formed to extend in the opposite direction so that the holding convex portion 125 moves from the insertion concave portion 232 to the holding concave portion 231 when rotated (not shown).
  • the concave portion 230 is formed on the front surface of the cylinder flange 213, and the holding convex portion 125 is formed on the front surface of the holding slit 123.
  • the irregular concave portion is formed on the rear surface of the cylinder flange.
  • a holding convex part may be formed on the rear surface of the holding slit.
  • the concave portions may be formed on both the front surface and the rear surface of the cylinder flange, and the holding convex portions may be formed on both the front surface and the rear surface of the holding slit (both not shown).
  • the insertion recess 511, the holding recess 512, and the communication recess in the recess 510 are shaped so that the front surface force of the cylinder flange 501 also penetrates to the rear surface.
  • 513 may be formed, or the holding convex portion 401 may be formed in a shape penetrating the front and rear surfaces of the holding slit.
  • the force engagement recess 216 and the flat portion 215 are formed in the cylinder flange 213 of the chemical syringe 200, illustrating that the recess 230, the engagement recess 216, and the flat portion 215 are formed. It is possible (not shown). Further, in the above embodiment, a force exemplifying that both ends of the elastic holding mechanism 127 are engaged with the pair of engaging concave portions 216 of the cylinder flange 213. Three or more elastic holding mechanisms are engaged with three or more engaging concave portions. In addition, one end of the elastic holding mechanism can be engaged with one engaging recess (not shown).
  • the recess 230 and the engagement recess 216 of the cylinder flange 213 are illustrated as being formed separately. However, as shown in FIG. It is also possible to use both the insertion recess 511 and the engagement recess by engaging the
  • the click feeling between the elastic holding mechanism 127 and the engaging concave portion 216 indicates that the holding convex portion 125 of the chemical liquid injector 100 is engaged with the holding concave portion 231 of the cylinder flange 213.
  • the operator can confirm by the angle of the flat portion 215 of the cylinder flange 213, etc., it can also be mechanically detected by a chemical liquid injector.
  • the magnet 522 is mounted at a position adjacent to the holding recess 231 of the cylinder flange 521.
  • the holding convex portion 411 of the chemical liquid injector 410 contains a Hall element (not shown) as engagement detecting means.
  • the chemical injection device 410 can detect whether the holding convex portion 411 is engaged with the holding concave portion 231 of the cylinder flange 521 by the Hall element.
  • the piston drive mechanism 116 can be operated by the computer unit 140 that is the operation control means only when this engagement is detected.
  • the chemical syringe 530 includes a concave portion 532 formed on the front surface of the cylinder flange 531, and a holding concave portion 533 includes an insertion concave portion. It is formed at a depth shallower than 534 and the communication recess 535.
  • the holding convex portion 421 is configured by an actuator of a pressing switch 422 that is an engagement detecting means. Therefore, as shown in FIGS. 10A and 10B, it is possible to detect whether the holding convex portion 421 is engaged with the holding concave portion 533.
  • the chemical syringe 540 has a concave portion 542 formed in the front surface of the cylinder flange 541, and a holding concave portion 543 has an insertion concave portion. It is formed deeper than 544 and communication recess 545.
  • the holding convex portion 431 is configured by a slidable detection terminal of the press detection element 432 which is an engagement detection means. Accordingly, as shown in FIGS.
  • the holding convex portion 431 is engaged with the insertion concave portion 544, the communication concave portion 545, and the holding concave portion 543.
  • the holding convex part 431 is a concave part.
  • the chemical syringe 200 attached to the chemical injection device 100 has been described as having one size in order to simplify the description.
  • the chemical solution syringe 200 having the maximum diameter is directly attached to the chemical solution injection device 100, and the chemical solution syringes 200 other than the maximum diameter are attached via the cylinder adapter 600.
  • the cylinder adapter 600 is formed with adapter flanges 610 having a shape equivalent to the cylinder flange 213 of the chemical syringe 200 with the maximum diameter extending from both sides of the outer surface to the lower part.
  • a flange holding mechanism 620 having the same structure as 121 is formed on the inner surface.
  • the concave portion 611 and the engagement concave portion 612 similar to the concave portion 230 of the chemical solution syringe 200 are formed in the adapter flange 610, so that the cylinder adapter 600 is injected with the chemical solution.
  • the device 100 can be held well with a simple structure. Further, by forming a holding convex portion and a holding mechanism (both not shown) similar to the chemical injection device 100 in the flange holding mechanism 620, the chemical syringe 200 can be easily mounted on the cylinder adapter 600 with a simple structure. Can be retained.
  • the chemical syringe 200 and the cylinder adapter 600 may be of only one type.
  • the chemical injection device 100 holds the cylinder flange 213 of the chemical syringe 200 even with the movable holding member 122 that can be opened and closed together with the engagement between the holding convex portion 125 and the holding concave portion 231.
  • the movable holding member 122 can be omitted from the chemical solution injector 100.
  • the flat portion 215 of the cylinder flange 213 is Although it has been illustrated that the holding convex portion 125 is inserted into the insertion concave portion 232 while being inclined upward, it may be difficult to intuitively insert the holding convex portion 125 into the insertion concave portion 232.
  • the insertion recess 552 is positioned on one of the left and right sides, and the holding recess 553 is positioned below. It is preferable that the flat portion 556 is formed on the outer peripheral surface of the cylinder flange 557 so that the flat portion 556 is positioned upward in a state where the cylinder flange 557 is positioned.
  • the liquid syringe 550 can be attached to the liquid injector 100 with an upward force while the flat portion 556 of the cylinder flange 557 is parallel to the top and bottom, so that it is held intuitively.
  • the convex part 125 can be inserted into the insertion concave part 552.
  • FIG. 14B since the flat portion 556 is parallel to the left-right direction when the holding convex portion 125 is positioned in the holding concave portion 553, it is confirmed that the chemical syringe 550 is held by the chemical injection device 100. It can be confirmed intuitively.
  • the insertion recess 552 is positioned on the left and right with the lower portion positioned, and the holding recess 553 is positioned with the upper and lower positions positioned on the lower side.
  • the pair of flat portions 561 can be formed on the outer peripheral surface of the cylinder flange 562.
  • the chemical syringe 550 can be attached to the chemical injection device 100 with upward force in a state where the pair of flat portions 561 of the cylinder flange 562 are parallel to the vertical direction, the holding convex portion 125 can be further intuitively formed. It can be inserted into the insertion recess 552.
  • the holding recess 553 of the cylinder flange 562 is located in the vicinity of the flat portion 561 on the other side, the strength of that portion may be insufficient.
  • a pair of holding convex portions 441 that are separated from each other are provided as in the case of the chemical solution injector 440 and the chemical syringe 570 illustrated in FIGS. 16A and 16B.
  • the cylinder flange 571 is preferably provided with a pair of insertion recesses 572 and a pair of holding recesses 573 respectively corresponding to the holding projections 441. Also, on the outer peripheral surface of the cylinder flange 571, a pair of flat portions 574 are positioned to the left and right with the insertion recess 572 positioned downward, and to be positioned up and down with the holding recess 573 positioned downward. To form.
  • the chemical syringe 570 can be intuitively attached to the chemical injection device 440 with the pair of flat portions 574 of the cylinder flange 571 parallel to the vertical direction. Nevertheless, since the holding recess 573 of the cylinder flange 571 is separated from the flat portion 574, the strength of that portion can be sufficiently secured.
  • the chemical liquid injection device 440 can firmly hold the chemical liquid syringe 570.
  • the pair of holding recesses 573 are positioned at the middle of the end of one recess 575 and do not need to be formed in a clearly recognized shape.
  • the engaging recesses 216 with which the elastic holding mechanism 127 of the chemical liquid injector 440 engages are naturally formed as two pairs symmetrical about the axis. However, if the elastic holding mechanism is engaged with the left and right ends of the cylinder flange, a pair of engaging recesses can be formed (not shown).
  • the chemical liquid injection device 100 in which only one chemical liquid syringe 200 is mounted in one concave portion 114 of the injection head 110 is illustrated, but a plurality of chemical liquid syringes 200 are provided in the plurality of concave portions 114 of the injection head 170.
  • a chemical injection device (not shown) that is individually installed is also possible.
  • each part of the chemical liquid injector 100 and the like has been specifically described, but each part can be changed in various ways.
  • the drive source of the piston drive mechanism is a DC (Direct Current) motor, It is formed by AC (Alternating Current) motor, display It is also possible that the panel is formed of an organic EL (Electro-Luminescence) display or a plasma display (not shown).
  • 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 nodeware.

Landscapes

  • 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

La présente invention concerne un système d’infusion de solution de médicaments (100) comprenant un mécanisme de soutien de collerette (120) destiné à soutenir la collerette de cylindre (213) d’une seringue à solution de médicaments (200) par une fente de soutien (123) à partir des côtés avant et arrière. Une partie saillante de soutien (125) est formée sur la surface interne de la fente de soutien (123). Une partie creuse comportant une partie creuse d’insertion (232), une partie creuse de communication (233) et une partie creuse de soutien (231) est formée dans la collerette de cylindre (213). Ladite seringue (200) est adaptée sur le dispositif d’infusion de solution de médicaments de sorte que la partie saillante de soutien (125) peut être insérée dans la partie creuse d’insertion (232). Lorsque ladite seringue (200) est tournée d’un angle prédéterminé, la partie saillante de soutien (125) est déplacée depuis la partie creuse d’insertion (232) à travers la partie creuse de communication (233) et mise en prise avec la partie creuse de soutien (231). Ladite seringue (200) est tenue sur ledit dispositif (100) par le contact de la partie saillante de soutien (125) avec la partie creuse de soutien (231).
PCT/JP2006/316953 2005-08-29 2006-08-29 Système d’infusion d’une solution de médicaments WO2007026684A1 (fr)

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JP2007533251A JP4833984B2 (ja) 2005-08-29 2006-08-29 薬液注入システム

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JP2005246936 2005-08-29
JP2005-246936 2005-08-29

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WO2007026684A1 true WO2007026684A1 (fr) 2007-03-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8647305B2 (en) 2009-04-14 2014-02-11 Panasonic Corporation Syringe drive device
EP2409720A4 (fr) * 2009-03-18 2018-03-21 Nemoto Kyorindo Co., Ltd. Adaptateur de seringue
WO2020209314A1 (fr) * 2019-04-09 2020-10-15 株式会社サーキュラス Injecteur de fluide médical et dispositif d'injection de fluide médical le comprenant
WO2024034633A1 (fr) * 2022-08-09 2024-02-15 株式会社根本杏林堂 Cylindre externe de seringue, seringue et élément de support de seringue

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2015339382A1 (en) 2014-10-28 2017-05-11 Bayer Healthcare Llc Self-orienting pressure jacket and pressure jacket-to-injector interface
US10792418B2 (en) 2014-10-28 2020-10-06 Bayer Healthcare Llc Self-orienting pressure jacket and pressure jacket-to-injector interface
US9199033B1 (en) 2014-10-28 2015-12-01 Bayer Healthcare Llc Self-orienting syringe and syringe interface
NO2689315T3 (fr) 2014-10-28 2018-04-14
CN108472433B (zh) 2015-11-13 2021-12-14 拜耳医药保健有限公司 嵌套式针筒组装件
US11191893B2 (en) 2018-01-31 2021-12-07 Bayer Healthcare Llc System and method for syringe engagement with injector

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Publication number Priority date Publication date Assignee Title
JP2000507473A (ja) * 1996-03-29 2000-06-20 メドラッド インコーポレイテッド 前方取付け式医療用注入器の前方取付け式シリンジアダプター
JP2002011096A (ja) * 2000-02-10 2002-01-15 Nemoto Kyorindo:Kk シリンジ、シリンダホルダ、および薬液注入システム
JP2003290347A (ja) * 2002-04-02 2003-10-14 Nemoto Kyorindo:Kk 注入ヘッド
JP2005000203A (ja) * 2003-06-09 2005-01-06 Nemoto Kyorindo:Kk 薬液注入システム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000507473A (ja) * 1996-03-29 2000-06-20 メドラッド インコーポレイテッド 前方取付け式医療用注入器の前方取付け式シリンジアダプター
JP2002011096A (ja) * 2000-02-10 2002-01-15 Nemoto Kyorindo:Kk シリンジ、シリンダホルダ、および薬液注入システム
JP2003290347A (ja) * 2002-04-02 2003-10-14 Nemoto Kyorindo:Kk 注入ヘッド
JP2005000203A (ja) * 2003-06-09 2005-01-06 Nemoto Kyorindo:Kk 薬液注入システム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2409720A4 (fr) * 2009-03-18 2018-03-21 Nemoto Kyorindo Co., Ltd. Adaptateur de seringue
US8647305B2 (en) 2009-04-14 2014-02-11 Panasonic Corporation Syringe drive device
WO2020209314A1 (fr) * 2019-04-09 2020-10-15 株式会社サーキュラス Injecteur de fluide médical et dispositif d'injection de fluide médical le comprenant
JPWO2020209314A1 (fr) * 2019-04-09 2020-10-15
WO2024034633A1 (fr) * 2022-08-09 2024-02-15 株式会社根本杏林堂 Cylindre externe de seringue, seringue et élément de support de seringue

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JPWO2007026684A1 (ja) 2009-03-05
JP4833984B2 (ja) 2011-12-07

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