WO2023036336A1 - Raccord de tube à trois voies et ensemble d'injecteur haute pression comportant un raccord de tube à trois voies - Google Patents

Raccord de tube à trois voies et ensemble d'injecteur haute pression comportant un raccord de tube à trois voies Download PDF

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Publication number
WO2023036336A1
WO2023036336A1 PCT/CN2022/118447 CN2022118447W WO2023036336A1 WO 2023036336 A1 WO2023036336 A1 WO 2023036336A1 CN 2022118447 W CN2022118447 W CN 2022118447W WO 2023036336 A1 WO2023036336 A1 WO 2023036336A1
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WO
WIPO (PCT)
Prior art keywords
inlet
central axis
way pipeline
pipeline
main body
Prior art date
Application number
PCT/CN2022/118447
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English (en)
Chinese (zh)
Inventor
堀信一
堀笃史
五十岚光夫
五十岚亮莱昂纳多
宫田智治
Original Assignee
临床支持有限公司
科斯米克M.E.公司
阿波罗Rt有限公司
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Application filed by 临床支持有限公司, 科斯米克M.E.公司, 阿波罗Rt有限公司 filed Critical 临床支持有限公司
Publication of WO2023036336A1 publication Critical patent/WO2023036336A1/fr

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    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • 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
    • 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

Definitions

  • the utility model relates to the technical field of medical devices, in particular to a three-way pipeline and a high-pressure injector set provided with the three-way pipeline.
  • Contrast agent is one of the most commonly used drugs in interventional radiology operations. It is mainly injected into the human body through a high-pressure contrast syringe to display blood vessels and body cavities and improve the accuracy of diagnosis. When injecting contrast medium, sometimes different concentrations of contrast medium are required. When the contrast medium and normal saline are injected and mixed at the same time, insufficient mixing will occur and the contrast effect will be poor.
  • dual-barrel contrast agent injection device equipped with two syringes.
  • one syringe is filled with contrast medium, and the other is filled with physiological saline.
  • the three-way connector connects the two syringes so that the two liquids are fully mixed.
  • the physiological saline and the contrast agent cannot be fully mixed, forming a situation where each side of the pipeline is occupied, resulting in the contrast agent that can be developed under X-ray and the normal saline that cannot be developed occupying the blood vessel respectively
  • Part of the problem is that the outline of blood vessels cannot be fully developed, and the imaging effect is not good or even fails.
  • this utility model is to provide a three-way pipeline that can fully mix the two liquids to form a contrast agent of required concentration and a high-pressure syringe kit equipped with the three-way pipeline.
  • the utility model provides a three-way pipeline, comprising: a main body with a cavity formed inside; a first inlet and a second inlet arranged at the base end of the main body; and a tip arranged at the main body The outlet at the end; the central axis of the first inlet and the central axis of the second inlet are not coplanar.
  • the two streams of liquid can efficiently form a vortex in the chamber, so as to be fully mixed into a mixed liquid with uniform concentration.
  • the first inlet and the second inlet are symmetrically distributed around the central axis of the outlet.
  • the base end of the main body is formed in a cylindrical shape; the first inlet and the second inlet are arranged at the base end along a tangential direction of the base end.
  • the three-way pipeline is in a Y-shaped structure.
  • the angle between the first inlet and the second inlet is 60°.
  • a high-pressure injector kit including: a double-barrel contrast medium injection device; the three-way pipeline as described above; a first injector connected by a connecting tube to the first inlet of the three-way pipeline; The second inlet communicates with the second injector.
  • the utility model has a simple structure and can fully mix two liquids to form a mixed liquid with uniform concentration.
  • Fig. 1 is a perspective view of a three-way pipeline according to an embodiment of the present invention
  • Fig. 2 is the structural representation of tee pipeline shown in Fig. 1, (a) is the front view of tee pipeline, (b) is the side view of tee pipeline;
  • Fig. 3 is the A-A direction sectional view of tee pipeline shown in (a) among Fig. 2;
  • Fig. 4 is a B-B step sectional view of the three-way pipeline shown in Fig. 3;
  • Fig. 5 is a figure showing the liquid flow direction in the three-way pipeline
  • Fig. 6 is a diagram showing a high-pressure syringe kit equipped with a three-way pipeline according to an embodiment of the present invention
  • Tee pipeline 1. First inlet; L1, central axis; 2. Second inlet; L2, central axis; 3. Main body; 4. Outlet; L4, central axis; 11. First connecting pipe; 12 , the first syringe; 21, the second connecting pipe; 22, the second syringe; 41, the extension pipeline; 42, the interface.
  • Fig. 1 is a perspective view of a three-way pipeline 10 according to an embodiment of the present invention.
  • the three-way pipeline 10 is used in the syringe kit, and is mainly used for inputting two different liquids such as contrast medium and physiological saline to mix them, and then discharge the mixed contrast medium.
  • the three-way pipeline 10 is formed in a substantially Y-shape and mainly includes a first inlet 1 , a second inlet 2 , a main body 3 and an outlet 4 .
  • the main body 3 is formed in a substantially columnar shape, and a chamber as a premix chamber is formed inside it.
  • the main body 3 includes a substantially cylindrical base end and a substantially conical tip end, and a first inlet 1 and a second inlet 2 are arranged on the top of the base end, and on the first inlet 1 and the second inlet 2 A first connecting pipe 11 and a second connecting pipe 21 are respectively provided.
  • the tip end of the main body 3 is formed to gradually decrease in diameter as it moves away from the base end, and includes a large diameter portion connected to the base end and a small diameter portion located on the opposite side of the large diameter portion across an inclined side surface.
  • An outlet 4 is arranged on the outlet 4, and an extension pipeline 41 is arranged on the outlet 4.
  • the first inlet 1 and the second inlet 2 are two inlets of the three-way pipeline 10, which are mainly used to introduce contrast medium and physiological saline into the chamber, for example, the first connecting tube 11 and the
  • the second connecting tube 12 inserted into the second inlet 2 connects two syringes provided on a dual-barrel contrast medium injection device.
  • the outlet 4 is the liquid outlet of the three-way pipeline 10, the central axis L4 of which coincides with the central axis of the main body 3, and is mainly used to discharge the contrast agent mixed in the chamber through the connected pipeline, for example, it can be extended through the pipeline 41 Connecting microcatheters or connecting scalp needles inserted into the patient, etc.
  • FIG. 2 is a schematic structural view of the three-way pipeline 10 , wherein (a) is a front view of the three-way pipeline 10 , and (b) is a side view of the three-way pipeline 10 .
  • the first inlet 1 and the second inlet 2 are arranged at the base end of the main body 3 in a manner of being staggered from each other.
  • the central axis L1 of the first inlet 1 and the central axis L2 of the second inlet 2 are respectively located on both sides of the plane passing through the central axis L4 of the outlet 4, and An included angle is formed between the first inlet 1 and the second inlet 2 , in other words, the first inlet 1 and the second inlet 2 are symmetrically distributed around the central axis L4 of the outlet 4 in a form that is not coplanar with each other.
  • the contrast medium and the physiological saline flowing into the main body 3 respectively from the first inlet 1 and the second inlet 2 can form a vortex in the chamber, thereby performing efficient mixing by the vortex.
  • a vortex can be formed in the chamber. Increase the vortex as much as possible without changing the flow rate.
  • FIG. 3 is a cross-sectional view of the three-way pipeline 10 shown in (a) of FIG. 2 along the direction of A-A.
  • the central axis L1 and the central axis L2 are symmetrical to the central axis of the main body 3 (that is, the central axis L4 of the outlet 4), and are equally spaced perpendicular to the main body with respect to the central axis L4
  • the circular port section of the first inlet 1 and the second inlet 2 is roughly inscribed with the circular section of the main body 3. In other words, as shown in (b) in FIG.
  • the first inlet 1 and the second inlet 2 form a continuous surface with the inner wall of the main body 3, and the contrast agent and physiological saline can be respectively injected into the chamber along the tangential direction, that is, along the inner wall of the main body 3, thereby enabling The two liquids do not collide with each other and form a stronger vortex, so that they can be mixed more effectively.
  • FIG. 4 is a stepped sectional view along the B-B direction of the three-way pipeline 10 shown in FIG. 3 .
  • the included angle between the first inlet 1 and the second inlet 2 may be 60°, but it is not limited thereto, the first inlet 1 and the second inlet 2 may also form, for example, 180° and other angles.
  • FIG. 5 is a diagram showing the direction of liquid flow in the three-way line 10 .
  • the flow in from the first inlet 1 and the second inlet 2 The contrast agent and saline no longer flow to the junction as in the ordinary three-way pipeline, but flow into the chamber from the first inlet 1 and the second inlet 2 along the side wall of the main body 3, forming a spiral in the chamber.
  • the vortex produces a stirring effect, avoiding the collision between the contrast medium and the normal saline.
  • the two streams of liquid flow toward the outlet 4 along the inclined side of the tip while stirring and mixing in the vortex, and the fully mixed contrast medium is discharged from the outlet 4 .
  • the three-way pipeline 10 of the present invention can prevent the contrast agent and saline from the two inlets from colliding with each other, ensuring that the flow velocity of the two is not affected.
  • the two streams of liquid can flow into the chamber of the three-way pipeline 10 respectively at the required flow rate, and can efficiently form a vortex in the chamber, so as to fully mix into the contrast agent of the required concentration.
  • This well-mixed contrast agent of specified concentration helps to improve the contrast effect.
  • the utility model also discloses a high-pressure injector kit equipped with the above-mentioned three-way pipeline 10, which includes a double-barreled contrast agent injection device, the above-mentioned three-way pipeline 10, the first injector 12, the second injector 22 and each connecting line.
  • FIG. 6 shows a high pressure syringe kit provided with a tee line 10 .
  • the first inlet 1 of the three-way pipeline 10 is connected to the first syringe 12 that has sucked the contrast medium through the first connecting tube 11, and the second inlet 2 is connected to the sucking contrast agent through the second connecting tube 21.
  • the second syringe 22 of physiological saline is supplied, and the outlet 4 is connected to a microcatheter or a scalp needle through an extension pipeline 41 and an interface 42.
  • the first syringe 12 is set on one side of the double-barrel contrast medium injection device, and its rubber plug is connected to the push rod on this side of the double-barrel contrast medium injection device
  • the second syringe 22 is set on the other side of the double-barrel contrast medium injection device. side, and its rubber plug is connected to the push rod on the other side of the dual-barrel contrast medium injection device.
  • the double-barreled contrast agent injection device includes a servo motor and a screw rod respectively, and is driven by a control system to convert the rotation of the servo motor into linear motion, thereby pushing forward the respective connected push rods.
  • the two sides of the dual-barrel contrast medium injection device respectively push the connected push rods at a specified speed, so that the first syringe 12 and the second syringe 22 flow to the three-way tube at the required flow rate respectively.
  • Contrast agent and saline are injected into the channel 10, and the contrast agent and saline are fully mixed in the three-way pipeline 10 by vortex to form a contrast agent with uniform concentration, and then injected into the patient's body through the outlet 4 through the microcatheter and the injection needle.
  • the contrast agent is used as an example to describe above, but the present invention is not limited to mixing contrast agents, and can also be used for mixing other liquids.

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

Abstract

Le présent modèle d'utilité concerne un raccord de tube à trois voies et un ensemble d'injecteurs haute pression comportant le raccord de tube à trois voies. Le raccord de tube à trois voies comprend : un corps principal dans lequel est formée une chambre, une première entrée et une seconde entrée disposées à une extrémité de base du corps principal, et une sortie disposée à une extrémité de tête du corps principal, l'axe central de la première entrée et l'axe central de la seconde entrée n'étant pas coplanaires. La structure du présent modèle d'utilité est simple et permet à deux liquides d'être complètement mélangés pour former un liquide mixte présentant une concentration homogène.
PCT/CN2022/118447 2021-09-13 2022-09-13 Raccord de tube à trois voies et ensemble d'injecteur haute pression comportant un raccord de tube à trois voies WO2023036336A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122208587.3 2021-09-13
CN202122208587.3U CN215780476U (zh) 2021-09-13 2021-09-13 一种三通管路以及具备该三通管路的高压注射器套件

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WO2023036336A1 true WO2023036336A1 (fr) 2023-03-16

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215780476U (zh) * 2021-09-13 2022-02-11 临床支持有限公司 一种三通管路以及具备该三通管路的高压注射器套件

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05337352A (ja) * 1992-06-11 1993-12-21 Fujitsu Ltd 無重力環境における液体の混合装置
CN102869331A (zh) * 2010-04-05 2013-01-09 株式会社根本杏林堂 混合装置、混合管、药液注入***和药液混合方法
CN106943954A (zh) * 2015-10-29 2017-07-14 株式会社Lg化学 混合器和包括该混合器的反应器
CN110753562A (zh) * 2017-04-12 2020-02-04 株式会社根本杏林堂 化学液体注入装置
CN210843163U (zh) * 2019-09-25 2020-06-26 广东省人民医院(广东省医学科学院) 一种超声心动图右心声学造影辅助装置
CN215780476U (zh) * 2021-09-13 2022-02-11 临床支持有限公司 一种三通管路以及具备该三通管路的高压注射器套件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05337352A (ja) * 1992-06-11 1993-12-21 Fujitsu Ltd 無重力環境における液体の混合装置
CN102869331A (zh) * 2010-04-05 2013-01-09 株式会社根本杏林堂 混合装置、混合管、药液注入***和药液混合方法
CN106943954A (zh) * 2015-10-29 2017-07-14 株式会社Lg化学 混合器和包括该混合器的反应器
CN110753562A (zh) * 2017-04-12 2020-02-04 株式会社根本杏林堂 化学液体注入装置
CN210843163U (zh) * 2019-09-25 2020-06-26 广东省人民医院(广东省医学科学院) 一种超声心动图右心声学造影辅助装置
CN215780476U (zh) * 2021-09-13 2022-02-11 临床支持有限公司 一种三通管路以及具备该三通管路的高压注射器套件

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