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WO2003030970A1 - Injecteur de fluides medicaux ayant une fonction de remplissage auxiliaire - Google Patents

Injecteur de fluides medicaux ayant une fonction de remplissage auxiliaire Download PDF

Info

Publication number
WO2003030970A1
WO2003030970A1 PCT/JP2002/009597 JP0209597W WO03030970A1 WO 2003030970 A1 WO2003030970 A1 WO 2003030970A1 JP 0209597 W JP0209597 W JP 0209597W WO 03030970 A1 WO03030970 A1 WO 03030970A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic container
drug solution
filling
main body
container
Prior art date
Application number
PCT/JP2002/009597
Other languages
English (en)
Japanese (ja)
Inventor
Keiichi Yamada
Takeharu Kobayashi
Original Assignee
Daiken Iki Kabushiki Kaisha
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 Daiken Iki Kabushiki Kaisha filed Critical Daiken Iki Kabushiki Kaisha
Publication of WO2003030970A1 publication Critical patent/WO2003030970A1/fr

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
    • A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
    • A61M5/152—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags pressurised by contraction of elastic reservoirs
    • 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
    • A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
    • A61M5/1483—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags using flexible bags externally pressurised by fluid pressure
    • A61M5/1486—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags using flexible bags externally pressurised by fluid pressure the bags being substantially completely surrounded by fluid
    • 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
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate

Definitions

  • the bag 202 is fixed to the stress member 204 with some stress applied in both the radial direction and the axial direction.
  • the first lumen 2 13 communicating with the inflow duct 214 at the periphery of the stress member 204 and the backflow of fluid from the bag 202 into the inflow duct 2 14
  • a second lumen 225 substantially parallel to the first lumen 213.
  • the second lumen 225 communicates with the outflow duct 224 located near the periphery of the stress member 204 and the middle thereof.
  • a capillary 228 is provided in the second lumen 225 as a flow adjusting means, and the second lumen 225 is connected to the outlet port 212 via the capillary 228.
  • this device is provided with a plurality of indicator bumps 2 16 for indicating that the bag 202 placed on the stress member 204 as shown in FIG. 9 which is a partial cross-sectional side view is almost empty. Is provided.
  • the liquid injector with the above configuration, if an appropriate liquid is injected into the device through the filling port 2 11 using a syringe, etc., the first lumen 2 13 and the one-way valve means 2 2 1 As a result, the chemical liquid enters the bag 202, and due to the effect of the valve means 221, no reverse flow of the chemical liquid toward the filling port occurs, and the chemical liquid is stored in the bag 202.
  • the filling auxiliary means assists the liquid chemical filling operation, for example, by a relative pressure difference between the elastic container and the elastic container caused by negative pressure inside the main body case.
  • the elastic container has the power to expand itself while it is empty. Therefore, when using this medicinal solution injection device, the pushing force (the force of expanding the elastic container by injecting the medicinal solution) when the medical staff fills the medicinal solution using the injection tube is reduced.
  • FIG. 6 is a graph showing the relationship between the discharge pressure of the chemical injection device and time.
  • FIG. 8 is a cross-sectional view for explaining a conventional technique.
  • FIG. 1 is an external appearance 1 view of a drug solution injector having a filling assist function according to an embodiment of the present invention.
  • the ink container 10 inside the main body case 6 described later, the elastic container 2, etc. are actually visible from the outside, but are indicated by dotted lines for convenience.
  • the chemical liquid injector 1 A tubular elastic container 2 made of, for example, silicone resin or the like, which is inert and elastic, and an injection port 3 for filling the elastic container 2 with a chemical solution;
  • a delivery pipe 4 composed of a synthetic resin tube for sending the drug solution discharged from one end of the elastic container 2 toward the patient is connected to the delivery pipe 4, and a flow rate adjusting device 5 for adjusting the flow rate of the drug solution 5
  • a synthetic resin or metal main body case 6 that protects the elastic container 2 and makes the whole or a part transparent, and filling the elastic container 2 with a chemical solution.
  • a chemical liquid filling auxiliary means 7 is provided to assist the work. That.
  • the chemical liquid filling auxiliary means 7 is constituted by a suction port 8 for making the inside of the main body case 6 a negative pressure, and the inside of the elastic container 2 is provided with a shape holding member 9 (FIG. 2) having a shape at the time of initial expansion.
  • a columnar indicator 10 that is movable in the axial direction inside the main body case 6 is provided.
  • the main body case 6 is made of synthetic resin, metal, or glass, and includes an injection-side case 6a that is opaque and a cylindrical suction-side case 6b that has transparency. It is joined so that it is airtight by a method such as bonding. .
  • the main body case 6 is divided into the injection side case 6a and the suction side case 6b, but may be formed integrally.
  • the indicator 10 is made of synthetic resin, metal or glass, and is a columnar part having an outer diameter slightly smaller than the inner diameter of the suction bow I-side case 6b. It can move (slide) in the axial direction.
  • the indicator 10 is provided with a fixed shaft 20 having a small outer diameter concentric with the outer periphery and an index line 29 (FIG. 1) on the outer periphery.
  • the suction side case 6b is provided with a scale 30 (FIG. 1) that allows the remaining amount of the chemical solution or the filling amount to be confirmed based on the relative positional relationship with the index line 29.
  • the knob 18 has a frustoconical valve body 18a and a small-diameter cylindrical knob. Acting part 18b.
  • the length of the Norbu body 18a is set to be longer than the distance from the flange 25 to the top surface 19a of the storage section, and the lower end (left end in the figure) is held by the flange 25. And the upper end (right end in the figure) is stored in close contact with the top surface 19a of the storage section. Therefore, in the state of FIG. 4 (a), due to the close contact of the norbu main body 18a on the top surface 19a, communication between the gas on the taper 23 side and the gas in the suction side case 6b is prevented.
  • the main body case 6 is depressurized during actual use, for example, as shown in FIG. 4 (c).
  • the outer periphery of the distal end portion 26 a and the taper 23 are airtightly fitted, and A force acts on the end face 26 a of the tip 26 a to push the valve action section 18 b toward the accommodation section 19.
  • the valve 18 made of a flexible material is compressed in the direction of the accommodating portion 19 by the pushing force, and the close contact of the valve body 18a on the top surface 19a is released.
  • the opening stopper 27 is a stopper formed of synthetic tree Ji, metal, etc., and has a large outer diameter part 27a and an engaging part which is dimensioned substantially the same as the tip part 26a of the syringe barrel. 27b, and the vent hole 27c penetrates along the central axis.
  • the large outer diameter portion 27a is in the shape of a pipe, and is provided with a female screw portion 28 which can be screwed with the male screw portion 22 on the inner periphery.
  • the opening plug 27 is inserted into the taper 23. Then, when the engaging portion 27 b pushes the valve 18, the vent 27 c and the gas communication with the outside are opened.
  • the screwing allows the opening plug 27 to be fixed to the suction port 8 constantly, and as a result, the open state of the valve 18 can be maintained.
  • the backflow prevention unit 50 is fitted into the connection cylinder 11 in the injection case 6a as shown in FIG. 5 (b), and is further formed with a lid 13 integrally formed with the cap 13 (FIG. 1).
  • the body 12 is externally fitted to the connecting tube 11, the position is fixed by the wedge effect of the locking convex piece 12a and the annular groove 11a.
  • the beak-shaped check valve 5 2c of the check valve body 52 allows the flow in the direction of the solid arrow in FIG. 5B, but in the opposite direction (from left to right in the figure). Stop the flow.
  • the backflow prevention unit 50 having the above configuration, when the medicinal solution injection device 1 of the present embodiment is filled with the medicinal solution using a syringe or the like, the medicinal solution is filled in the elastic container 2 to prevent backflow. At the same time, the filled drug solution and the air in the elastic container 2 can be evacuated by suction with the syringe.
  • the flow rate adjusting device 5 adjusts the flow rate of the chemical solution discharged by the contraction force of the elastic container 2. For example, by using a flow control device as disclosed in Japanese Patent Application Laid-Open No. 2000-147777, the drug solution in the elastic container 2 can be selectively injected into a patient.
  • the chemical liquid injector 1 having the above configuration will be described in detail with reference to FIGS.
  • the drug solution in the syringe is The device is automatically filled.
  • Fig. 1 shows a view of the appearance of the bowl at this time.
  • Indicator Itoizumi 29 moves at the same time as the movement of Injike 10 is relative to the scale 30 of the suction case J b 6b. Can be used to determine the filling amount.
  • the negative pressure in the main body case 6 is released by attaching the above-described opening plug 27 shown in FIG. 3 to the suction port 8. Then, the chemical solution in the elastic container 2 is pushed out to the delivery pipe 4 via the flow path 16 and the outflow path 17 by the stretching force, and the flow rate provided downstream of the delivery pipe 4 The flow rate is adjusted to a predetermined value via the regulator 5 (Fig. 1) and injected into the patient.
  • the chemical solution discharged according to the above procedure is marked by a solid line in FIG. 6 because the shape retaining member 9 is installed to prevent the elastic container 2 from suddenly changing its shape immediately before the end of the injection. Enter pressure line.
  • a syringe was used as a means for forming a shadow, but the use of a vacuum pipe that is permanently installed in a hospital facility reduces the burden on the medical staff. Furthermore, if the negative pressure in the stippling part in Fig. 2 is created in advance (at the time of shipment), the negative pressure creating operation itself becomes unnecessary.
  • pouring apparatus of this invention can reduce the pressing force at the time of a medical worker filling a medical solution into an elastic container, and can reduce the burden on the user of the said apparatus.

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

Injecteur de fluides médicaux destiné à injecter à un patient un liquide médical qui remplit un récipient tubulaire de dilatation. Il comprend un trou d'injection (3) pour injecter un liquide médical dans le récipient tubulaire de dilatation (2) pour faciliter à l'opérateur la tâche de remplissage du récipient avec un liquide médical, une conduite d'amenée (4) disposée à l'une des extrémités du récipient de dilatation (2) pour amener au patient le liquide médical distribué, un régulateur de débit (5) monté dans la conduite d'amenée (4), un boîtier de protection (6) pour protéger le récipient de dilatation (2), un système auxiliaire de remplissage avec un liquide médical (7), destiné à assister l'opération de remplissage du liquide médical et un élément à mémoire de forme (9) ayant la forme de dilatation initiale du récipient de dilatation (2).
PCT/JP2002/009597 2001-10-02 2002-09-19 Injecteur de fluides medicaux ayant une fonction de remplissage auxiliaire WO2003030970A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001/306481 2001-10-02
JP2001306481A JP2003111839A (ja) 2001-10-02 2001-10-02 充填補助機能を備えた薬液注入装置

Publications (1)

Publication Number Publication Date
WO2003030970A1 true WO2003030970A1 (fr) 2003-04-17

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Application Number Title Priority Date Filing Date
PCT/JP2002/009597 WO2003030970A1 (fr) 2001-10-02 2002-09-19 Injecteur de fluides medicaux ayant une fonction de remplissage auxiliaire

Country Status (2)

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JP (1) JP2003111839A (fr)
WO (1) WO2003030970A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8109907B2 (en) 2006-07-11 2012-02-07 Tsukada Medical Research Co., Ltd. Continuous drug solution infusion device
JP2020156864A (ja) * 2019-03-27 2020-10-01 ニプロ株式会社 薬液注入用のリザーバー容器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470365B (zh) * 2009-07-24 2014-12-17 Emd密理博公司 供料袋结构
JP5606729B2 (ja) * 2009-12-16 2014-10-15 大研医器株式会社 注入用具及びこれを備えた薬液注入システム
JP2013070718A (ja) * 2011-09-26 2013-04-22 Terumo Corp 薬液投与システム及び薬液投与装置
KR101492231B1 (ko) * 2013-10-17 2015-02-16 강원대학교산학협력단 탄성체 튜브를 이용한 약물 주입장치
KR101586586B1 (ko) * 2014-10-08 2016-01-20 김용무 약액 주입 장치
WO2017007123A1 (fr) 2015-07-08 2017-01-12 (주)더블유앤지 Dispositif de perfusion à ballonnet
KR101811846B1 (ko) * 2017-03-15 2017-12-22 김휘화 안전성을 향상시킨 반자동 주사기
JPWO2020045096A1 (ja) 2018-08-29 2021-08-10 株式会社村田製作所 加湿装置およびこれを備えた呼吸器用加湿送風装置
KR20250027891A (ko) * 2023-08-21 2025-02-28 홍익대학교 산학협력단 수액 주입 장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016304A2 (fr) * 1991-03-22 1992-10-01 Deka Products Limited Partnership Systeme d'alimentation en fluides multiples sous une pression constante
JPH1147271A (ja) * 1996-03-11 1999-02-23 Jms Co Ltd 持続注入器
JPH11164885A (ja) * 1997-12-03 1999-06-22 Piolax Inc 薬液持続注入器
WO2000048652A1 (fr) * 1999-02-19 2000-08-24 Medical Research Group, Inc. Pompe a perfusion a pression negative
JP2001029461A (ja) * 1999-07-19 2001-02-06 Sumitomo Bakelite Co Ltd 薬液持続注入器具
JP2001157710A (ja) * 1999-12-02 2001-06-12 Sumitomo Bakelite Co Ltd 薬液持続注入器具

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016304A2 (fr) * 1991-03-22 1992-10-01 Deka Products Limited Partnership Systeme d'alimentation en fluides multiples sous une pression constante
JPH1147271A (ja) * 1996-03-11 1999-02-23 Jms Co Ltd 持続注入器
JPH11164885A (ja) * 1997-12-03 1999-06-22 Piolax Inc 薬液持続注入器
WO2000048652A1 (fr) * 1999-02-19 2000-08-24 Medical Research Group, Inc. Pompe a perfusion a pression negative
JP2001029461A (ja) * 1999-07-19 2001-02-06 Sumitomo Bakelite Co Ltd 薬液持続注入器具
JP2001157710A (ja) * 1999-12-02 2001-06-12 Sumitomo Bakelite Co Ltd 薬液持続注入器具

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8109907B2 (en) 2006-07-11 2012-02-07 Tsukada Medical Research Co., Ltd. Continuous drug solution infusion device
JP2020156864A (ja) * 2019-03-27 2020-10-01 ニプロ株式会社 薬液注入用のリザーバー容器
JP7262701B2 (ja) 2019-03-27 2023-04-24 ニプロ株式会社 薬液注入用のリザーバー容器

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