WO2005099790A1 - 薬液注入システム - Google Patents
薬液注入システム Download PDFInfo
- Publication number
- WO2005099790A1 WO2005099790A1 PCT/JP2005/007136 JP2005007136W WO2005099790A1 WO 2005099790 A1 WO2005099790 A1 WO 2005099790A1 JP 2005007136 W JP2005007136 W JP 2005007136W WO 2005099790 A1 WO2005099790 A1 WO 2005099790A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- syringe
- cylinder
- liquid
- drug solution
- tube
- Prior art date
Links
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
- 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
- A61M5/1456—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 drug solution injection system for injecting a drug solution into a subject by relatively moving a cylinder member and a piston member of a drug solution syringe with a drug solution injection device, and more particularly, to a drug solution injection system via a cylinder adapter.
- the present invention relates to a drug solution injection system mounted on a device.
- CT Computed
- Emission Computed Tomography equipment, ultrasonic diagnostic equipment, angio equipment, MRA (MR Angio) equipment, etc.
- a medical solution such as a contrast medium may be injected into a subject, and a chemical injection device that automatically performs this injection has been put into practical use.
- the above-described liquid injector has an injection head, and a liquid syringe is detachably attached to the injection head.
- the chemical syringe also includes a cylinder member and a piston member, and the cylinder member is formed in a hollow cylindrical shape. Further, the cylinder member has a through-hole formed at the front end and an open end, so that the piston member is slidably inserted into the inside from the opening.
- the through hole at the tip of the cylinder member is formed as a protruding conduit portion, and the distal end portion of the extension tube is connected to this conduit portion. Since the infusion needle is integrally attached to the distal end portion of the extension tube, the infusion needle is connected to the blood vessel of the subject. Therefore, when using the liquid injector, the cylinder member of the liquid syringe filled with the liquid is connected to the subject with the extension tube as described above, and the liquid syringe is mounted on the injection head of the liquid injector. [0006] In a general liquid injector, a concave portion having a shape corresponding to the cylinder member of the liquid syringe is formed on the upper surface of the injection head.
- the liquid syringe is held.
- the piston member is held separately from the cylinder member by a piston drive mechanism, and the piston member is slid by the piston drive mechanism.
- the medicinal solution syringe can also inject the medicinal solution into the subject, and the medicinal solution tank force and the medicinal solution can be sucked into the medicinal syringe as needed.
- a radioisotope solution is used as a contrast agent.
- this contrast agent emits harmful radiation
- a tungsten syringe cover that blocks radiation is attached to the chemical syringe to prevent workers from being exposed to radiation.
- the syringe driving mechanism holds the cylinder member of the chemical syringe with the syringe cover attached.
- Patent Document 1 JP-A-2002-11096
- Patent Document 2 JP-A-2002-102343
- the present invention has been made in view of the above-described problems, and connects an extension tube to a drug solution syringe that does not require a complicated operation that does not require an operator to be exposed to a radioisotope contrast agent. It is an object of the present invention to provide a drug solution injection system capable of performing the above. Means for solving the problem
- the drug solution injection system of the present invention includes a drug solution syringe, an extension tube, and a drug solution injection device.
- the drug solution syringe includes a cylinder member and a piston member.
- the drug solution injection device includes a cylinder holding mechanism. And a piston drive mechanism.
- the cylinder member of the drug syringe has a through-hole formed at the tip and is filled with a drug solution in a hollow cylindrical shape with an open end, and the piston member is slidably inserted into the cylinder member from the opening at the end of the cylinder member. .
- the extension tube has an injection needle connected to the blood vessel of the subject mounted on the distal end, and the distal end is connected to the through hole of the cylinder member of the drug solution syringe.
- the cylinder holding mechanism of the drug solution injector holds the cylinder member of the drug syringe detachably, and the piston drive mechanism moves the piston member relative to the held cylinder member.
- the through-hole of the cylinder member of the chemical solution syringe is sealed with an elastic body, and a sharp hollow needle is attached to the end of the extension tube.
- the drug solution injector has a tube holding mechanism and a tube connecting mechanism.
- the tube holding mechanism detachably holds the hollow needle of the extension tube.
- the tube connecting mechanism movably supports the hollow needle held by the tube holding mechanism at a position facing the elastic body of the cylinder member held by the cylinder holding mechanism and at a position where it is punctured.
- a sharp hollow needle is mounted in a through hole of a cylinder member of the drug solution syringe
- the extension tube has a cylindrical member and an elastic body
- the liquid injector has a member holding mechanism and a tube connecting mechanism.
- the cylindrical member is rigid and connected to the end of the extension tube, and the elastic body seals the opening at the end of the cylindrical member.
- the member holding mechanism of the drug solution injector holds the cylindrical member of the extension tube in a detachable manner, and the tube coupling mechanism connects the cylindrical member held by the member holding mechanism to the hollow needle of the cylinder member held by the cylinder holding mechanism.
- the extension tube can be connected to the drug solution syringe by the drug solution injection device, it is necessary for an operator to manually remove the drug syringe force elastic body and connect the drug solution tube. Therefore, the work load is reduced, and workers are not exposed even if the chemical solution is a radioisotope contrast agent.
- FIG. 1 is a perspective view showing a state in which a drug solution syringe and an extension tube are attached to a drug solution injection device of a drug solution injection system according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view showing a state in which a drug solution syringe and an extension tube are attached to the drug solution injector.
- FIG. 3 is a perspective view showing a state in which a syringe cover and a rubber cap as an elastic body are attached to the chemical syringe.
- FIG. 4 is a perspective view showing an appearance of a drug solution injector.
- FIG. 5 is a perspective view showing an appearance of a drug solution injection system.
- Head body that is a syringe shielding member and a needle shielding member
- Head cover which is a syringe shielding member and a needle shielding member 118 Cylinder holding mechanism
- 320 Catheter is an injection needle
- the drug solution injection system 1000 of the present embodiment includes, for example, as shown in FIG. 5, a drug solution injection device 100, a drug solution syringe 200, an extension tube 300, and a PET device 400 as a fluoroscopic imaging device.
- a chemical solution injection device 100 injects a radioisotope solution as a contrast agent from a solution syringe 200 to a subject (not shown) from which a fluoroscopic image is captured.
- the PET device 400 includes a fluoroscopic imaging unit 401 and an imaging control unit 402, which are imaging execution mechanisms.
- the fluoroscopic imaging unit 401 and the imaging control unit 402 are connected by wire through a communication network 311. ing.
- the fluoroscopic imaging unit 401 captures a fluoroscopic image from a subject, and the imaging control unit 402 controls the operation of the fluoroscopic imaging unit 401.
- chemical solution syringe 200 has a cylinder member 210 and a piston member 220, and piston member 220 is slidably inserted into cylinder member 210.
- the cylinder member 210 has a hollow cylinder-shaped transparent cylinder body 211, for example.
- a conduit portion 212 is formed on the closed distal end surface of the cylinder body 211. Since the conduit portion 212 is also formed in a hollow cylindrical shape, a through hole 213 communicating with the inside and the outside of the cylinder member 210 is formed therein.
- the end surface of the cylinder body 211 of the cylinder member 210 is open, and the piston member 220 is inserted into the cylinder body 211 from this opening.
- a cylinder flange 214 is formed on the outer periphery of the distal end of the cylinder member 210, and a piston flange 221 is formed on the outer periphery of the distal end of the piston member 220.
- cylindrical syringe cover 230 is formed separately from chemical solution syringe 200 with tungsten, lead, or the like, which is a material that blocks radiation of radioisotope.
- a rubber cap 240 is formed in a cylindrical shape with silicone rubber or the like as an elastic body, and a syringe cover 230 as a syringe shielding member is detachably attached to an outer peripheral portion of a cylinder member 210 of the chemical syringe 200.
- the extension tube 300 has a hollow needle 310, a catheter 320 as an injection needle, and a tube main body 330, and a hollow needle is provided at an end of the tube main body 330.
- a catheter 320 is connected to the distal end while a catheter 310 is connected.
- the hollow needle 310 is, for example, sharply formed, and is formed integrally with the cylindrical holder member 311.
- the hollow needle 310 is connected to the cylinder member 210 of the drug solution syringe 200 by being punctured into a force rubber cap 240 described later in detail, and the catheter 320 is connected by being punctured into a blood vessel of a subject.
- the liquid injector 100 includes an injection control unit 101 and an injection head 110 which is an injection head, which are formed separately.
- the input head 110 is connected by wire with a communication cable 102.
- the injection head 110 drives the attached drug solution syringe 200 to inject the drug solution into the subject, and the injection control unit 101 controls the operation of the injection head 110.
- the injection control unit 101 has a built-in microcomputer (not shown), and is also connected to the imaging control unit 402 of the PET device 400 by wire.
- the injection control unit 101 has an operation panel 103, a display panel 104, a speaker hood 105, etc., arranged on the front of the main body housing 106, and a separate controller hood 107. Wired connection connector 108 is used.
- the injection head 110 is movably supported on the upper end of a caster stand 111 by a movable arm 112.
- a head cover 114 is provided on the front upper surface of the head body 113 in the vertical direction. It is attached to open and close freely.
- the head body 113 and the head cover 114 are also made of tungsten, lead, or the like as a syringe shielding member and a needle shielding member, and the upper surface of the head body 113 and the lower surface of the head cover 114 are provided with a chemical solution with a syringe cover 230 attached thereto.
- Semi-cylindrical concave grooves 116 and 117 corresponding to the outer shape of the cylinder member 210 of the syringe 200 are formed.
- the cylinder member 210 of the chemical syringe 200 with the syringe cover 230 mounted thereon is upwardly loaded into the concave groove 116 of the head main body 113, and the head cover 114 is closed in this state. Since the cylinder member 210 is held together with the syringe cane 230 in the concave grooves 116 and 117 with the cylinder 114, a cylinder holding mechanism 118 is formed here.
- a piston drive mechanism 119 having a strong force such as a drive motor and a screw mechanism is disposed at the rear of the injection head 110, and the piston member 220 is attached to the cylinder member 210 of the chemical syringe 200 held as described above.
- the piston drive mechanism 119 slides and press-fits.
- a tube holding mechanism 130 is formed at the front of the injection head 110, and the hollow needle 310 of the extension tube 300 is detachably held by the tube holding mechanism 130. More specifically, the tube holding mechanism 130 includes a holding mechanism main body 131 also made of tungsten and a holding mechanism cover 132, and a holding mechanism force bar 132 is connected to the holding mechanism main body 131 so as to be openable and closable.
- the holding mechanism cover 132 On the opposing upper surface of the holding mechanism main body 131 and the lower surface of the holding mechanism cover 132, semi-cylindrical concave grooves 133, 134 corresponding to the outer shape of the holder member 311 of the extension tube 300 are formed. Therefore, the holder member 311 of the extension tube 300 is When the holding mechanism cover 132 is closed in a state where the holding mechanism cover 132 has been loaded, the holding mechanism cover 132 is held.
- the hollow needle 310 held by the tube holding mechanism 130 is moved by the cylinder holding mechanism 118.
- the cylinder member 210 held at the position is movably supported at a position facing the rubber cap 240 and at a position to be punctured.
- a rectangular parallelepiped concave groove 141 is formed in the front upper surface of the head main body 113 in the front-rear direction, and the holding mechanism main body 131 is elongated in the left-right direction! It is slidably arranged in the front and rear directions. Further, on both sides of the front portion of the head main body 113, elongated slits 142 in the front-to-rear direction are communicated with the above-mentioned concave grooves 121, and a lever member 143 passing through the slit 142 is connected to the holding mechanism main body 131.
- the radioisotope contrast agent is generated by a dedicated chemical solution generator (not shown).
- this chemical solution generator has a sharp space in the mechanism for generating a contrast agent.
- a needle is connected, and a contrast agent is supplied to the hollow needle.
- a mechanism for holding the cylinder member 210 of the liquid syringe 200, a mechanism for piercing the hollow needle into the rubber cap 240, and a mechanism for pulling out the piston member 220 with respect to the cylinder member 210 are provided.
- the liquid syringe 200 is filled with the contrast agent.
- a syringe cover 230 and a rubber cap 240 are attached to the drug solution syringe 200, and the drug solution syringe 200 is attached to the drug solution syringe 200.
- a radioisotope contrast agent is filled with a chemical solution generator (not shown).
- the head cover 114 is opened from the head body 113 of the liquid injector 100, and the holding mechanism cover 132 is opened from the holding mechanism body 131 of the tube holding mechanism 130 located at the front end. Let it.
- the hollow needle 310 is held by the tube holding mechanism 130 by loading the holder member 311 of the extension tube 300 into the concave groove 133 of the holding mechanism main body 131 and closing the holding mechanism cover 132.
- the liquid syringe 200 is loaded into the concave groove 116 of the head main body 113 and the head cover 114 is closed, so that the liquid syringe 200 is held by the cylinder holding mechanism 118. And When the operator retreats the lever member 143 by manual operation, the tube holding mechanism 130 retreats in conjunction with this, and the hollow needle 310 of the extension tube 300 pierces the rubber cap 240 of the drug solution syringe 200.
- the extension tube 300 is connected to the drug solution syringe 200.
- the piston driving mechanism 119 causes the drug solution syringe 119 to operate.
- the piston member 220 of 200 is slightly pressed. With this, a small amount of the contrast agent is supplied from the liquid syringe 200 to the extension tube 300, and the inside of the extension tube 300 is filled with the contrast agent to remove air.
- the worker connects the catheter 320 of the extension tube 300 to the subject's blood vessel located in the fluoroscopic imaging unit 401 of the PET device 400, inputs a drug solution to the drug solution injector 100, and operates the PET device 400. Input operation for image capture. Then, when the piston drive mechanism 119 of the liquid injector 100 presses the piston member 220, the contrast agent is supplied from the liquid syringe 200 to the subject via the extension tube 300, and the subject power to which the contrast agent is supplied is also increased. A fluoroscopic image is captured by the PET device 400.
- the extension tube 300 can be connected to the drug solution syringe 200 by the drug solution injection device 100 as described above, so that the worker manually removes the rubber cap 240 from the drug solution syringe 200 and removes the drug solution tube. Since there is no need to connect the two, the work load is reduced, and workers are not exposed even if the chemical solution is a radioisotope contrast agent.
- the liquid medicine generating apparatus that generates a radioisotope contrast medium and fills the liquid syringe 200 with the hollow needle piercing the rubber cap 240 of the liquid syringe 200 to supply the contrast medium is used.
- the drug solution injection system 1000 the drug solution syringe 200 filled with the contrast agent by the drug solution generator can be used as it is in the drug solution injector 100.
- the present invention is not limited to the present embodiment and allows various modifications without departing from the gist thereof.
- the tube connection mechanism 140 is slid by a manual operation. It is also possible to mechanically drive the coupling mechanism 140 (not shown).
- a force exemplifying that the tube connecting mechanism 140 simply supports the tube holding mechanism 130 so as to be freely slidable.
- the tube holding mechanism 130 holds the hollow needle 310 in a state of being punctured by the rubber cap 240. It is also possible to form the mechanism for locking the mechanism 130 into a tube connecting mechanism (not shown).
- the hollow needle 310 and the rubber cap 240 It is also possible to form a window on the head cover so that the position of the head cover can be visually recognized. In this case, since it is possible to visually check whether or not the hollow needle 310 has been punctured into the rubber cap 240, the injection operation can be performed more reliably. For such a window, it is preferable to use, for example, lead glass that can shield radiation well (not shown).
- a force exemplifying that the rubber cap 240 is attached to the outside of the conduit portion 212 protruding from the cylinder member 210 of the chemical syringe 200 For example, a through hole is directly formed in the tip end surface of the cylinder member. It is formed, and an elastic body can be attached to the inside of the through-hole, so that it is possible (not shown).
- a force exemplifying that the hollow needle 310 of the extension tube 300 is pierced into the rubber cap 240 of the liquid syringe 200 For example, a sharp hollow needle is attached to a through hole of the cylinder member of the liquid syringe.
- the end opening of the rigid cylindrical member connected to the end of the extension tube is sealed by an elastic body, and the hollow needle of the drug solution syringe can be punctured into the elastic body of the extension tube. (Not shown).
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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
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006512353A JP4708335B2 (ja) | 2004-04-14 | 2005-04-13 | 薬液注入システム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-118966 | 2004-04-14 | ||
JP2004118966 | 2004-04-14 |
Publications (1)
Publication Number | Publication Date |
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WO2005099790A1 true WO2005099790A1 (ja) | 2005-10-27 |
Family
ID=35149789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007136 WO2005099790A1 (ja) | 2004-04-14 | 2005-04-13 | 薬液注入システム |
Country Status (2)
Country | Link |
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JP (1) | JP4708335B2 (ja) |
WO (1) | WO2005099790A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938936U (ja) * | 1982-09-03 | 1984-03-12 | 川澄化学工業株式会社 | 薬液注入装置 |
JPH0295380A (ja) * | 1988-09-30 | 1990-04-06 | Daiichi Rajio Isotope Kenkyusho:Kk | 放射性溶液注射筒及びその包装体 |
JPH0574545U (ja) * | 1990-04-28 | 1993-10-12 | 株式会社大塚製薬工場 | 注射器 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4202333A (en) * | 1978-11-08 | 1980-05-13 | Minnesota Mining And Manufacturing Company | Fluid dispensing device |
-
2005
- 2005-04-13 JP JP2006512353A patent/JP4708335B2/ja not_active Expired - Fee Related
- 2005-04-13 WO PCT/JP2005/007136 patent/WO2005099790A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938936U (ja) * | 1982-09-03 | 1984-03-12 | 川澄化学工業株式会社 | 薬液注入装置 |
JPH0295380A (ja) * | 1988-09-30 | 1990-04-06 | Daiichi Rajio Isotope Kenkyusho:Kk | 放射性溶液注射筒及びその包装体 |
JPH0574545U (ja) * | 1990-04-28 | 1993-10-12 | 株式会社大塚製薬工場 | 注射器 |
Also Published As
Publication number | Publication date |
---|---|
JP4708335B2 (ja) | 2011-06-22 |
JPWO2005099790A1 (ja) | 2008-03-06 |
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