JP2021132887A

JP2021132887A - Mixture set

Info

Publication number: JP2021132887A
Application number: JP2020031837A
Authority: JP
Inventors: 裕作品川; Yusaku Shinagawa; 達矢山崎; Tatsuya Yamazaki
Original assignee: Tokuyama Dental Corp
Current assignee: Tokuyama Dental Corp
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2021-09-13

Abstract

To provide a mixture set that enables two components to be mixed in a predetermined component ratio as required and is easy to transport and store.SOLUTION: A mixture set includes a first syringe 2 accommodating a first content, a second syringe 4 accommodating a second content, and a communication member 10. The communication member 10 has a body part 96 having a cylindrical shape, where one end of the body part is fitted to a discharge cylinder part of a syringe body 12 of the first syringe and the other end of the body part is fitted to a discharge cylinder part of a syringe body 38 of the second syringe so that the discharge cylinder part of the syringe body of the first syringe and the discharge cylinder part of the syringe body of the second syringe are communicated with each other.SELECTED DRAWING: Figure 10

Description

本発明は、使用に際して２つの成分を混和するための混和セットに関する。 The present invention relates to a mixing set for mixing two components in use.

歯科分野においては、例えば接着剤或いは充填剤等の使用に際して、施術者が２つの成分を混和することが少なくない。２つの成分を混和容器内に適宜に注入し施術者が手動で混和する旧来方式では、所定の成分比率で所要とおりに混和することが必ずしも容易でない。かような事実に鑑みて、下記特許文献１には、２つの成分を混和するためにシリンジ・イン・シリンジ・システムと称される混和システムが提案されている。このシステムにおいては、２個の円筒形状のシリンジ本体がタンデムに連結されており、一方のシリンジ本体にはプランジャーが装備されている。一方のシリンジ本体に装備されているプランジャーを押し進めることによって、一方のシリンジ本体内に収容されていた内容物が他方のシリンジ本体内に注入され、他方のシリンジ本体内に収容されていた内容物に混合される。そして、他方のシリンジ本体に装備されている混和部材を操作することによって２つの成分、即ち一方のシリンジ本体に収容されていた内容物及び他方のシリンジ本体に収容されていた内容物、が混和される。次いで、一方のシリンジ本体に装備されている上記プランジャーを更に押し進めて他方のシリンジ本体内に進入させることによって、混和された物（即ち接着剤又は充填剤等）が他方のシリンジ本体内から排出される。 In the field of dentistry, for example, when using an adhesive or a filler, the practitioner often mixes the two components. In the conventional method in which the two components are appropriately injected into a mixing container and manually mixed by the practitioner, it is not always easy to mix the two components as required in a predetermined component ratio. In view of such facts, Patent Document 1 below proposes a mixing system called a syringe-in-syringe system for mixing two components. In this system, two cylindrical syringe bodies are connected in tandem, and one syringe body is equipped with a plunger. By pushing the plunger mounted on one syringe body, the contents contained in one syringe body are injected into the other syringe body, and the contents contained in the other syringe body are injected. Is mixed with. Then, by operating the mixing member mounted on the other syringe body, the two components, that is, the contents contained in one syringe body and the contents contained in the other syringe body, are mixed. NS. Then, by further pushing the plunger mounted on one syringe body to enter the other syringe body, the admixture (that is, adhesive, filler, etc.) is discharged from the other syringe body. Will be done.

特開２０１５−５１２９５号公報Japanese Unexamined Patent Publication No. 2015-51295

而して、上記特許文献１において提案されている混和システムも未だ充分に満足し得るものではなく、（１）２個のシリンジ本体、プランジャー及び混和部材等を予め所要とおりに連結しておくことが必要であり、システム全体として相当な長さを有し、搬送及び保管等に著しく不便である、（２）特に混和すべき内容物の一方が微細な粉体であり、他方が液体である場合、両者を適切に混和することができない、という問題がある。 Therefore, the mixing system proposed in Patent Document 1 is not yet sufficiently satisfactory, and (1) two syringe bodies, a plunger, a mixing member, and the like are connected in advance as required. It is necessary, and the system as a whole has a considerable length, which is extremely inconvenient for transportation and storage, etc. (2) In particular, one of the contents to be miscible is a fine powder and the other is a liquid. In some cases, there is a problem that the two cannot be mixed properly.

本発明は上記事実に鑑みてなされたものであり、その主たる技術的課題は、２つの成分を所定の成分比率で所要とおりに混和することを可能にすると共に搬送及び保管も容易である、新規且つ改良された混和セットを提供することである。 The present invention has been made in view of the above facts, and its main technical problem is that the two components can be mixed as required in a predetermined component ratio, and can be easily transported and stored. And to provide an improved mixing set.

本発明の他の技術的課題は、特に内容物の一方が微細な粉体であり他方が液体である場合でも両者を適切に混和することができる、新規且つ改良された混和セットを提供することである。 Another technical subject of the present invention is to provide a new and improved mixing set capable of appropriately mixing the two contents, particularly when one of the contents is a fine powder and the other is a liquid. Is.

本発明者等は、鋭意検討の結果、夫々別個に搬送及び保管することができる第一の内容物を収容した第一のシリンジ、第二の内容物を収容した第二のシリンジ及び連通部材を含み、使用に際して連通部材によって第一のシリンジと第二のシリンジを所要とおりに連通させる形態の混和セットによって、上記主たる技術的課題を達成することができることを見出した。 As a result of diligent studies, the present inventors have obtained a first syringe containing a first content, a second syringe containing a second content, and a communication member, which can be transported and stored separately. It has been found that the above-mentioned main technical problem can be achieved by an admixture set in which the first syringe and the second syringe are communicated with each other as required by a communicating member in use.

更に、本発明者等は、鋭意検討及び実験の結果、第二のシリンジのプランジャーに、前方に延出し且つ先端部は先細形状である混和促進部材を付設し、この混和促進部材が第二のシリンジのシリンジ本体における排出筒部、連通部材の本体部及び第一のシリンジのシリンジ本体における排出筒部を通って第一のシリンジにおけるシリンジ本体の主筒部に収容されている第一の内容物内に進入することができるように構成することによって、上記他の技術的課題を達成することができることを見出した。 Further, as a result of diligent studies and experiments, the present inventors have attached a mixing promoting member extending forward and having a tapered tip to the plunger of the second syringe, and this mixing promoting member is the second. First content accommodated in the main cylinder of the syringe body of the first syringe through the discharge cylinder of the syringe body of the syringe, the main body of the communicating member, and the discharge cylinder of the syringe body of the first syringe. It has been found that the above-mentioned other technical problems can be achieved by configuring the object so that it can enter the object.

即ち、本発明によれば、上記主たる技術的課題を達成する混和セットとして、
第一の内容物を収容した第一のシリンジ、第二の内容物を収容した第二のシリンジ及び連通部材を含み、
該第一のシリンジはシリンジ本体及びプランジャーから構成されており、該シリンジ本体は円筒形状の主筒部、該主筒部の前端面に配設され且つ開口を有する前壁部、及び該前壁部の該開口の周縁から延出する円錐台形状乃至円筒形状の排出筒部を含み、
該第二のシリンジもシリンジ本体及びプランジャーから構成されており、該シリンジ本体は円筒形状の主筒部、該主筒部の前端面に配設され且つ開口を有する前壁部、及び該前壁部の該開口の周縁から延出する円錐台形状乃至円筒形状の排出筒部を含み、
該連通部材は円筒形状の本体部を有し、該本体部の片端部が該第一のシリンジの該シリンジ本体における該排出筒部に被嵌され、該本体部の他端部が該第二のシリンジの該シリンジ本体における該排出筒部に被嵌されて、該第一のシリンジの該シリンジ本体における該排出筒部と該第二のシリンジの該シリンジ本体における該排出筒部とを連通させる、
ことを特徴とする混和セットが提供される。 That is, according to the present invention, as an admixture set that achieves the above-mentioned main technical problems,
Includes a first syringe containing the first contents, a second syringe containing the second contents and a communication member.
The first syringe is composed of a syringe body and a plunger, and the syringe body is a cylindrical main cylinder portion, a front wall portion disposed on the front end surface of the main cylinder portion and having an opening, and the front portion thereof. Includes a truncated or cylindrical discharge tube that extends from the periphery of the opening in the wall.
The second syringe is also composed of a syringe body and a plunger, and the syringe body is a cylindrical main cylinder portion, a front wall portion disposed on the front end surface of the main cylinder portion and having an opening, and the front portion thereof. Includes a truncated or cylindrical discharge tube that extends from the periphery of the opening in the wall.
The communicating member has a cylindrical main body portion, one end portion of the main body portion is fitted to the discharge cylinder portion of the syringe main body of the first syringe, and the other end portion of the main body portion is the second. The syringe is fitted into the discharge cylinder portion of the syringe body, and the discharge cylinder portion of the first syringe in the syringe body and the discharge cylinder portion of the second syringe in the syringe body are communicated with each other. ,
An admixture set characterized by that is provided.

上記他の技術的課題は、該第二のシリンジの該プランジャーには前方に延出し且つ先端部は先細形状である混和促進部が付設されており、該混和促進部は該第二のシリンジの該シリンジ本体における該排出筒部、該連通部材の該本体部及び該第一のシリンジの該シリンジ本体における該排出筒部を通って該第一のシリンジの該シリンジ本体における該主筒部に収容されている該第一の内容物内に進入することができる、混和セットによって達成される。 The other technical problem is that the plunger of the second syringe is provided with a mixing promoting portion that extends forward and has a tapered tip, and the mixing promoting portion is the second syringe. Through the discharge cylinder portion in the syringe body, the main body portion of the communication member, and the discharge cylinder portion in the syringe body of the first syringe to the main cylinder portion in the syringe body of the first syringe. Achieved by an admixture set that allows entry into the first content contained.

好ましくは、該第一のシリンジの該シリンジ本体において、該開口は該前壁部の中央に配置されており、該排出筒部の外径は該主筒部の外径よりも小さく且つ該排出筒部は該主筒部と同心状に配置されており、該第二のシリンジの該シリンジ本体においても、該開口は該前壁部の中央に配置されており、該排出筒部の外径は該主筒部の外径よりも小さく且つ該排出筒部は該主筒部と同心状に配置されている。該第一のシリンジの該シリンジ本体は該前壁部から延出する円筒形状の連結筒部を含み、該連結筒部は該排出筒部の外径よりも大きい内径を有し且つ該排出筒部と同心状に配置されており、該連結筒部の内周面には周方向に１８０度の間隔をおいて２条の雌螺条が形成されており、該第二のシリンジの該シリンジ本体も該前壁部から延出する円筒形状の連結筒部を含み、該連結筒部は該排出筒部の外径よりも大きい内径を有し且つ該排出筒部と同心状に配置されており、該連結筒部の内周面には周方向に１８０度の間隔をおいて２条の雌螺条が形成されており、該連通部材の該本体部の片端外周面及び他端外周面には、夫々、１８０度の間隔をおいて２個の係止突起が形成されており、該第一のシリンジの該シリンジ本体における該連結筒部に形成されている該２条の雌螺条と該連通部材の該本体部の該片端外周面に形成されている該２個の係止突起は第一のルアーロック機構を構成し、該第二のシリンジの該シリンジ本体における該連結筒部に形成されている該２条の雌螺条と該連通部材の該本体部の該他端外周面に形成されている該２個の係止突起は第二のルアーロック機構を構成するのが好適である。該第一のシリンジは、円形先端壁部と該先端壁部の周縁から延出する筒状側壁部を有し且つ該シリンジ本体における該排出筒部に被嵌されるキャップを含み、該第二のシリンジも、円形先端壁部と該先端壁部の周縁から延出する筒状側壁部を有し且つ該シリンジ本体における該排出筒部に被嵌されるキャップを含むのが好都合である。該第一のシリンジの該キャップの該側壁部の先端外周面及び該第二のシリンジの該キャップの該側壁部の先端外周面には、夫々、１８０度の間隔をおいて２個の係止突起が形成されており、該第一のシリンジの該シリンジ本体における該連結筒部に形成されている該２条の雌螺条と該キャップの該側壁部の先端外周面に形成されている該２個の係止突起は第一のルアーロック機構を構成し、該第二のシリンジの該シリンジ本体における該連結筒部に形成されている該２条の雌螺条と該キャップの該側壁部の該先端外周面に形成されている該２個の係止突起は第二のルアーロック機構を構成するのが好都合である。該混和促進部の該先端部に続く接続部は該先端部の基端面を超えて半径方向に突出することがないのが望ましい。好ましくは、該混和促進部の先端部は円錐又は角錐形状である、或いは該混和促進部の先端は周方向に間隔をおいて配設され且つ先端に向かって半径方向幅が漸次低減する複数個の羽根片を有する。好適形態においては、該第一のシリンジに収容されている該第一の内容物は粉体であり、該第二のシリンジに収容されている該第二の内容物は液体である。該第二のシリンジの該シリンジ本体の内径は該第一のシリンジの該シリンジ本体の内径よりも小さいのが好都合である。 Preferably, in the syringe body of the first syringe, the opening is located in the center of the anterior wall portion, the outer diameter of the discharge cylinder portion is smaller than the outer diameter of the main cylinder portion, and the discharge is performed. The cylinder portion is arranged concentrically with the main cylinder portion, and also in the syringe body of the second syringe, the opening is arranged in the center of the front wall portion, and the outer diameter of the discharge cylinder portion. Is smaller than the outer diameter of the main cylinder portion, and the discharge cylinder portion is arranged concentrically with the main cylinder portion. The syringe body of the first syringe includes a cylindrical connecting cylinder portion extending from the front wall portion, and the connecting cylinder portion has an inner diameter larger than the outer diameter of the discharging cylinder portion and the discharging cylinder portion. It is arranged concentrically with the portion, and two female threads are formed on the inner peripheral surface of the connecting cylinder portion at intervals of 180 degrees in the circumferential direction, and the syringe of the second syringe. The main body also includes a cylindrical connecting cylinder portion extending from the front wall portion, and the connecting cylinder portion has an inner diameter larger than the outer diameter of the discharge cylinder portion and is arranged concentrically with the discharge cylinder portion. Two female threads are formed on the inner peripheral surface of the connecting cylinder portion at intervals of 180 degrees in the circumferential direction, and the outer peripheral surface of one end and the outer peripheral surface of the other end of the main body of the communicating member. Each of the two locking projections is formed at an interval of 180 degrees, and the two female threads formed on the connecting cylinder portion of the syringe body of the first syringe. And the two locking projections formed on the outer peripheral surface of the one end of the main body of the communicating member constitute the first luer lock mechanism, and the connecting cylinder of the second syringe in the syringe body. The two female threads formed in the above and the two locking projections formed on the outer peripheral surface of the other end of the main body of the communicating member form a second luer lock mechanism. Suitable. The first syringe has a circular tip wall portion and a tubular side wall portion extending from the peripheral edge of the tip wall portion, and includes a cap fitted to the discharge cylinder portion in the syringe body. It is convenient that the syringe also has a circular tip wall portion and a tubular side wall portion extending from the peripheral edge of the tip wall portion, and includes a cap fitted to the discharge cylinder portion in the syringe body. Two locks are placed on the outer peripheral surface of the tip of the side wall of the cap of the first syringe and the outer peripheral surface of the tip of the side wall of the cap of the second syringe, respectively, at an interval of 180 degrees. The protrusions are formed, and the two female threads formed on the connecting cylinder portion of the syringe body of the first syringe and the tip outer peripheral surface of the side wall portion of the cap are formed. The two locking projections constitute the first luer lock mechanism, the two female threads formed on the connecting cylinder portion of the syringe body of the second syringe, and the side wall portion of the cap. It is convenient that the two locking protrusions formed on the outer peripheral surface of the tip form a second luer lock mechanism. It is desirable that the connecting portion of the mixing promoting portion following the tip portion does not protrude in the radial direction beyond the proximal end surface of the tip portion. Preferably, the tip portion of the mixing promoting portion has a conical or pyramidal shape, or the tips of the mixing promoting portion are arranged at intervals in the circumferential direction and the radial width gradually decreases toward the tip. Has a wing piece. In a preferred embodiment, the first content contained in the first syringe is a powder and the second content contained in the second syringe is a liquid. It is convenient that the inner diameter of the syringe body of the second syringe is smaller than the inner diameter of the syringe body of the first syringe.

本発明の混和セットによれば、第一の内容物を収容した第一のシリンジ、第二の内容物を収容した第二のシリンジ及び連通部材は夫々別個に搬送及び保管することができ、使用に際しては連通部材によって第一のシリンジと第二のシリンジを所要とおりに連通させて、第一の内容物と第二の内容物とを所定の比率で所要とおりに混和することができる。 According to the admixture set of the present invention, the first syringe containing the first content, the second syringe containing the second content and the communicating member can be transported and stored separately and used. At this time, the first syringe and the second syringe can be communicated with each other as required by the communicating member, and the first content and the second content can be mixed as required at a predetermined ratio.

第二のシリンジのプランジャーには前方に延出し且つ先端部は先細形状である混和促進部材が付設されており、混和促進部材は第二のシリンジのシリンジ本体における排出筒部、連通部材の本体部及び第一のシリンジのシリンジ本体における排出筒部を通って第一のシリンジのシリング本体における主筒部に収容されている第一の内容物内に進入することができる形態においては、第一の内容物が微細な粉体であり第二の内容物が液体である場合でも、混和促進部材が微細な粉体である第一の内容物内に進入することによって、液体である第二の内容物が第一の内容物中に誘導され、第一の内容物と第二の内容物とを充分良好に混和することができる。 The plunger of the second syringe is provided with an admixture promoting member that extends forward and has a tapered tip, and the admixture promoting member is the discharge cylinder portion and the main body of the communication member in the syringe body of the second syringe. In the form in which the portion and the discharge cylinder portion of the syringe body of the first syringe can be entered into the first contents housed in the main cylinder portion of the silling body of the first syringe, the first Even when the content of the first content is a fine powder and the second content is a liquid, the mixing promoting member enters the first content which is a fine powder, so that the second content is a liquid. The contents are guided into the first contents, and the first contents and the second contents can be mixed sufficiently well.

本発明に従って構成された混和セットの好適実施形態における第一のシリンジを、一部を断面で示す分解側面図。The exploded side view which shows a part of the 1st syringe in the preferred embodiment of the admixture set constructed according to this invention in the cross section. 本発明に従って構成された混和セットの好適実施形態における第二のシリンジを、一部を断面で示す分解側面図。The exploded side view which shows a part of the 2nd syringe in the preferred embodiment of the admixture set constructed according to this invention in the cross section. 図２に示す第二のシリンジにおけるプランジャーに付設されている混和促進部を示す部分斜面図。FIG. 2 is a partial slope view showing a mixing promoting portion attached to a plunger in the second syringe shown in FIG. 図２に示す第二のシリンジにおけるプランジャーに付設される混和促進部材の変形例を示す部分斜面図。FIG. 2 is a partial slope view showing a modified example of the mixing promoting member attached to the plunger in the second syringe shown in FIG. 本発明に従って構成された混和セットの好適実施形態における、第一のシリンジに適用されるキャップを、一部を断面で示す側面図。A side view showing a part of a cap applied to a first syringe in a preferred embodiment of an admixture set configured according to the present invention. 本発明に従って構成された混和セットの好適実施形態における、第二のシリンジに適用されるキャップを、一部を断面で示す側面図。A side view showing a part of a cap applied to a second syringe in a preferred embodiment of an admixture set configured according to the present invention. 本発明に従って構成された混和セットの好適実施形態における連通部材を、一部を断面図で示す側面図。The side view which shows a part of the communication member in the preferred embodiment of the admixture set constructed according to this invention by the sectional view. 図1に示す第一のシリンジに図５に示すキャップを適用した状態を示す側面図。A side view showing a state in which the cap shown in FIG. 5 is applied to the first syringe shown in FIG. 図２に示す第二のシリンジに図６に示すキャップを適用した状態を示す側面図。A side view showing a state in which the cap shown in FIG. 6 is applied to the second syringe shown in FIG. 図1に示す第一のシリンジと図２に示す第二のシリンジとを図７に示す連通部材で所要とおりに組み合わせた状態を示す側面図。A side view showing a state in which the first syringe shown in FIG. 1 and the second syringe shown in FIG. 2 are combined as required by the communication member shown in FIG. 7. 図1に示す第一のシリンジと図２に示す第二のシリンジとを図７に示す連通部材で所要とおりに組み合わせた状態を示す部分断面図。A partial cross-sectional view showing a state in which the first syringe shown in FIG. 1 and the second syringe shown in FIG. 2 are combined as required by the communication member shown in FIG.

以下、本発明に従って構成された混和セットの好適実施形態を図示している添付図面を参照して、更に詳述する。 Hereinafter, the details will be further described with reference to the accompanying drawings illustrating preferred embodiments of the miscibility set configured according to the present invention.

本発明に従って構成された混和セットの好適実施形態は、図１に図示する第一のシリンジ２、図２に図示する第二のシリンジ４、図５に図示するキャップ６、図６に図示するキャップ８及び図７に図示する連通部材１０から構成されている。 Preferable embodiments of the admixture set configured according to the present invention include a first syringe 2 shown in FIG. 1, a second syringe 4 shown in FIG. 2, a cap 6 shown in FIG. 5, and a cap shown in FIG. It is composed of the communication member 10 shown in 8 and 7.

図１を参照して説明すると、第一のシリンジ２は、シリンジ本体１２及びプランジャー１４を含んでいる。シリンジ本体１２は、円筒形状の主筒部１６及びこの主筒部１６の前端に配設された円形状の前壁部１８を有する。前壁部１８の中央には開口２０が形成されている。前壁部１８の前面には、開口２０の周縁から前方に延出する円錐台筒形状の排出筒部２２が形成されている。排出筒部２２の外径は主筒部１６の外径よりも小さく、排出筒部２２と主筒部１６とは同心状に配置されている。図示の実施形態においては、排出筒部２２は外径及び内径が先端に向かって若干ではあるが漸次低減されている円錐台筒形状である（図１１も参照された）が、所望ならば排出筒部２２を内径及び外径が変化しない円筒形状にすることもできる。前壁部１８の前面には、更に、前方に延出する円筒形状の連結筒部２４も形成されている。連結筒部２４も主筒部１６及び排出筒部２２と同心状に配置されており、連結筒部２４の内径は排出筒部２２の外径よりも大きく、連結筒部２４の外径は主筒部１６の外径よりも小さい。連結筒部２４の延出長さは排出筒部２２の延出長さよりも幾分短いのが好都合である。連結筒部２４の内周面には、周方向に１８０度の間隔をおいて２条の雌螺条２６ａ及び２６ｂが形成されている。シリンジ本体１２の後端面はその全体に渡って開口されている。シリンジ本体１２の外周面後端にはフランジ片２８が形成されている。フランジ片２８の外周縁は円形或いは楕円形等の適宜の形状でよい。主筒部１６の内周面後端部には、主筒部１６内に挿入されるプランジャー１４が偶発的に脱落するのを防止するための環状突起３０が形成されているのが好適である。上述したとおりのシリンジ本体１２は、ポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から一体に成形されており、透明乃至半透明であるのが好ましい。 Explaining with reference to FIG. 1, the first syringe 2 includes a syringe body 12 and a plunger 14. The syringe body 12 has a cylindrical main cylinder portion 16 and a circular front wall portion 18 arranged at the front end of the main cylinder portion 16. An opening 20 is formed in the center of the front wall portion 18. On the front surface of the front wall portion 18, a truncated cone-shaped discharge cylinder portion 22 extending forward from the peripheral edge of the opening 20 is formed. The outer diameter of the discharge cylinder portion 22 is smaller than the outer diameter of the main cylinder portion 16, and the discharge cylinder portion 22 and the main cylinder portion 16 are arranged concentrically. In the illustrated embodiment, the discharge cylinder portion 22 has a truncated cone shape in which the outer diameter and the inner diameter are slightly reduced toward the tip (see also FIG. 11), but the discharge cylinder portion 22 is discharged if desired. The tubular portion 22 may have a cylindrical shape in which the inner and outer diameters do not change. A cylindrical connecting cylinder portion 24 extending forward is also formed on the front surface of the front wall portion 18. The connecting cylinder portion 24 is also arranged concentrically with the main cylinder portion 16 and the discharge cylinder portion 22, the inner diameter of the connecting cylinder portion 24 is larger than the outer diameter of the discharge cylinder portion 22, and the outer diameter of the connecting cylinder portion 24 is the main. It is smaller than the outer diameter of the tubular portion 16. It is convenient that the extension length of the connecting cylinder portion 24 is slightly shorter than the extension length of the discharge cylinder portion 22. Two female threads 26a and 26b are formed on the inner peripheral surface of the connecting cylinder portion 24 at intervals of 180 degrees in the circumferential direction. The rear end surface of the syringe body 12 is open over the entire surface. A flange piece 28 is formed at the rear end of the outer peripheral surface of the syringe body 12. The outer peripheral edge of the flange piece 28 may have an appropriate shape such as a circular shape or an elliptical shape. It is preferable that an annular protrusion 30 is formed at the rear end of the inner peripheral surface of the main cylinder portion 16 to prevent the plunger 14 inserted into the main cylinder portion 16 from accidentally falling off. be. The syringe body 12 as described above is integrally molded from an appropriate synthetic resin such as polypropylene, high-density polyethylene or polycarbonate, and is preferably transparent or translucent.

第一のシリンジ２のプランジャー１４は、ピストン３２、ピストン３２の前端に位置する円板形状のヘッド３４及びピストン３２の後端に位置する円板形状の押圧板３６を有する。図示の実施形態におけるピストン３２の横断面形状は十字形状である。ピストン３２の横断面形状は円形又は矩形等の他の適宜の形状でもよい。ヘッド３４の外径は上記シリンジ本体１２の主筒部１６の内径と実質上同一である。押圧板３６の外径は主筒部１６の外径よりも幾分大きいのが好都合である。図１に二点鎖線で図示する如く、プランジャー１４のヘッド３４及びピストン３２の一部は、シリンジ本体１２における主筒部１６の開口された後端面から主筒部１６内に挿入され、ヘッド３２の外周縁は主筒部１６の内周面に密接される。この際には、プランジャー１４のヘッド３４は、主筒部１６の内周面後端部に形成されている環状突条３０を弾性的に乗り越える。上述したとおりのプランジャー１４は、ポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から一体に成形されているのが望ましい。 The plunger 14 of the first syringe 2 has a piston 32, a disc-shaped head 34 located at the front end of the piston 32, and a disc-shaped pressing plate 36 located at the rear end of the piston 32. The cross-sectional shape of the piston 32 in the illustrated embodiment is a cross shape. The cross-sectional shape of the piston 32 may be any other suitable shape such as a circle or a rectangle. The outer diameter of the head 34 is substantially the same as the inner diameter of the main cylinder portion 16 of the syringe body 12. It is convenient that the outer diameter of the pressing plate 36 is slightly larger than the outer diameter of the main cylinder portion 16. As shown by the alternate long and short dash line in FIG. 1, a part of the head 34 and the piston 32 of the plunger 14 is inserted into the main cylinder portion 16 from the opened rear end surface of the main cylinder portion 16 in the syringe body 12, and the head The outer peripheral edge of 32 is brought into close contact with the inner peripheral surface of the main cylinder portion 16. At this time, the head 34 of the plunger 14 elastically overcomes the annular ridge 30 formed at the rear end of the inner peripheral surface of the main cylinder portion 16. It is desirable that the plunger 14 as described above is integrally molded from an appropriate synthetic resin such as polypropylene, high density polyethylene or polycarbonate.

図２を参照して説明を続けると、第二のシリンジ４も、第一のシリンジ２と同様に、シリンジ本体３８及びプランジャー４０を含んでいる。シリンジ本体３８は、円筒形状の主筒部４２及びこの主筒部４２の前端に配設された円形状の前壁部４４を有する。主筒部４２の内径（及び外径）は上記第一のシリンジ４におけるシリンジ本体１２の主筒部１６の内径（及び外径）よりも幾分小さいのが望ましい（その理由については後述する）。前壁部４４の中央には開口４６が形成されている。前壁部４４の前面には、開口４６の周縁から前方に延出する円錐台筒形状の排出筒部４８が形成されている。第一のシリンジ２におけるシリンジ本体１２の排出筒部２２と同様に、図示の実施形態においては、排出筒部４８は外径及び内径が先端に向かって若干ではあるが漸次低減されている円錐台筒形状である（図１１も参照された）が、所望ならば排出筒部４８を内径及び外径が変化しない円筒形状にすることもできる。排出筒部４８は円筒形状でもよい。排出筒部４８の外径は主筒部４２の外径よりも小さく、排出筒部４８と主筒部４２とは同心状に配置されている。前壁部４４の前面には、更に、前方に延出する円筒形状の連結筒部５０も形成されている。連結筒部５０も主筒部４２及び排出筒部４８と同心状に配置されており、連結筒部５０の内径は排出筒部４８の外径よりも大きく、連結筒部５０の外径は主筒部４２の外径よりも小さい。排出筒部４８の内径及び外径並びに連結筒部５０の内径及び外径は、上記第一のシリンジ２におけるシリンジ本体１２における排出筒部２２の内径及び外径並びに連結筒部２４の内径及び外径と実質上同一であるのが好都合である。連結筒部５０の延出長さは排出筒部４８の延出長さよりも幾分短いのが好都合である。連結筒部５０の内周面には、周方向に１８０度の間隔をおいて２条の雌螺条５２ａ及び５２ｂが形成されている。シリンジ本体３８の後端面はその全体に渡って開口されている。シリンジ本体３８の外周面後端にはフランジ片５４が形成されている。フランジ片５４の外周縁は円形或いは楕円形等の適宜の形状でよい。主筒部４２の内周面後端部には、主筒部４２内に挿入されるプランジャー４０が偶発的に脱落するのを防止するための環状突起５６が形成されているのが好適である。上述したとおりのシリンジ本体３８は、上記第一のシリンジ２におけるシリンジ本体１２と同様に、ポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から一体に成形されており、透明乃至半透明であるのが好ましい。 Continuing the description with reference to FIG. 2, the second syringe 4 also includes the syringe body 38 and the plunger 40, like the first syringe 2. The syringe body 38 has a cylindrical main cylinder portion 42 and a circular front wall portion 44 arranged at the front end of the main cylinder portion 42. It is desirable that the inner diameter (and outer diameter) of the main cylinder portion 42 is slightly smaller than the inner diameter (and outer diameter) of the main cylinder portion 16 of the syringe body 12 in the first syringe 4 (the reason will be described later). .. An opening 46 is formed in the center of the front wall portion 44. On the front surface of the front wall portion 44, a truncated cone-shaped discharge cylinder portion 48 extending forward from the peripheral edge of the opening 46 is formed. Similar to the discharge cylinder portion 22 of the syringe body 12 in the first syringe 2, in the illustrated embodiment, the discharge cylinder portion 48 is a truncated cone whose outer diameter and inner diameter are gradually reduced toward the tip. Although it has a cylindrical shape (see also FIG. 11), the discharge cylinder portion 48 may have a cylindrical shape in which the inner and outer diameters do not change, if desired. The discharge cylinder portion 48 may have a cylindrical shape. The outer diameter of the discharge cylinder portion 48 is smaller than the outer diameter of the main cylinder portion 42, and the discharge cylinder portion 48 and the main cylinder portion 42 are arranged concentrically. A cylindrical connecting cylinder portion 50 extending forward is also formed on the front surface of the front wall portion 44. The connecting cylinder portion 50 is also arranged concentrically with the main cylinder portion 42 and the discharge cylinder portion 48, the inner diameter of the connecting cylinder portion 50 is larger than the outer diameter of the discharge cylinder portion 48, and the outer diameter of the connecting cylinder portion 50 is the main. It is smaller than the outer diameter of the tubular portion 42. The inner diameter and outer diameter of the discharge cylinder portion 48 and the inner diameter and outer diameter of the connecting cylinder portion 50 are the inner diameter and outer diameter of the discharge cylinder portion 22 and the inner diameter and outer diameter of the connecting cylinder portion 24 in the syringe body 12 of the first syringe 2. It is convenient that it is substantially the same as the diameter. It is convenient that the extension length of the connecting cylinder portion 50 is slightly shorter than the extension length of the discharge cylinder portion 48. Two female threads 52a and 52b are formed on the inner peripheral surface of the connecting cylinder 50 at intervals of 180 degrees in the circumferential direction. The rear end surface of the syringe body 38 is open over the entire surface. A flange piece 54 is formed at the rear end of the outer peripheral surface of the syringe body 38. The outer peripheral edge of the flange piece 54 may have an appropriate shape such as a circular shape or an elliptical shape. It is preferable that an annular protrusion 56 is formed at the rear end of the inner peripheral surface of the main cylinder portion 42 to prevent the plunger 40 inserted into the main cylinder portion 42 from accidentally falling off. be. The syringe body 38 as described above is integrally molded from an appropriate synthetic resin such as polypropylene, high-density polyethylene or polycarbonate, and is transparent or translucent, like the syringe body 12 in the first syringe 2. Is preferable.

第二のシリンジ４のプランジャー４０は、ピストン５８、ピストン５８の前端に位置する円板形状のヘッド６０及びピストン５８の後端に位置する円板形状の押圧板６２を有する。ピストン５８の横断面形状は十字形状である。ピストン５８の横断面形状は円形又は矩形等の他の適宜の形状でもよい。ヘッド６０の外径は上記シリンジ本体３８の主筒部４２の内径と実質上同一である。押圧板６２の外径は主筒部４２の外径よりも幾分大きいのが好都合である。第二のシリンジ４のプランジャー４０には、更に、ヘッド６０から前方に延出する混和促進部６４が付設されている。図２と共に図３を参照して説明すると、混和促進部６４は、先細形状の先端部６６とこれに続く接続部６８とから構成されている。先端部６６の基端面、即ち図示の実施形態では円形である後端面の外径は、第二のシリンジ４におけるシリンジ本体３８の排出筒部４８の内周面及び第一のシリンジ２におけるシリンジ本体１２の排出筒部２２の内径よりも小さく、混和促進部６４の先端部６６及びこれに続く接続部６８は第二のシリンジ４におけるシリンジ本体３８の排出筒部４８及び第一のシリンジ２におけるシリンジ本体１２の排出筒部２２を挿通することができることが重要である。図示の実施形態においては円錐形状であるが、三角錐形状の如き角錐形状でもよい。先端部６６をヘッド６０に接続する接続部６８の横断面形状は十字形状である。接続部６８の横断面形状は円形又は矩形等の他の適宜の形状でもよい。接続部６８は先端部６６の基端面（図示の場合は円形である）を超えて半径方向に突出することがない、換言すれば半径方向に見て接続部６８は任意の横断面において先端部６６の基端面内に存在するのが好適である。図２に二点鎖線で図示する如く、プランジャー４０の混和促進部６４、ヘッド６０及びピストン５８の一部は、シリンジ本体３８における主筒部４２の開口された後端面から主筒部４２内に挿入され、ヘッド６０の外周縁は主筒部４２の内周面に密接される。この際には、プランジャー４０のヘッド６０は、主筒部４２の内周面後端部に形成されている環状突条５６を弾性的に乗り越える。上述したとおりのプランジャー４０は、第一のシリンジ２におけるプランジャー１４と同様に、ポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から一体に成形されているのが望ましい。 The plunger 40 of the second syringe 4 has a piston 58, a disc-shaped head 60 located at the front end of the piston 58, and a disc-shaped pressing plate 62 located at the rear end of the piston 58. The cross-sectional shape of the piston 58 is a cross shape. The cross-sectional shape of the piston 58 may be any other suitable shape such as a circle or a rectangle. The outer diameter of the head 60 is substantially the same as the inner diameter of the main cylinder portion 42 of the syringe body 38. It is convenient that the outer diameter of the pressing plate 62 is slightly larger than the outer diameter of the main cylinder portion 42. The plunger 40 of the second syringe 4 is further provided with a mixing promoting portion 64 extending forward from the head 60. Explaining with reference to FIG. 3 together with FIG. 2, the mixing promoting portion 64 is composed of a tapered tip portion 66 and a connecting portion 68 following the tip portion 66. The outer diameter of the base end surface of the tip portion 66, that is, the rear end surface which is circular in the illustrated embodiment, is the inner peripheral surface of the discharge cylinder portion 48 of the syringe body 38 in the second syringe 4 and the syringe body in the first syringe 2. The tip 66 of the mixing promoting portion 64 and the connecting portion 68 following the tip 66 of the mixing promoting portion 64 are smaller than the inner diameter of the discharge cylinder portion 22 of 12, and the syringe body 48 of the syringe body 38 in the second syringe 4 and the syringe in the first syringe 2 It is important that the discharge cylinder portion 22 of the main body 12 can be inserted. Although it has a conical shape in the illustrated embodiment, it may have a pyramid shape such as a triangular pyramid shape. The cross-sectional shape of the connecting portion 68 connecting the tip portion 66 to the head 60 is a cross shape. The cross-sectional shape of the connecting portion 68 may be another appropriate shape such as a circle or a rectangle. The connecting portion 68 does not project radially beyond the base end surface (circular in the drawing) of the tip portion 66, in other words, the connecting portion 68 is a tip portion in an arbitrary cross section when viewed in the radial direction. It is preferably present in the proximal plane of 66. As shown by the alternate long and short dash line in FIG. 2, the mixing promoting portion 64, the head 60, and a part of the piston 58 of the plunger 40 are inside the main cylinder portion 42 from the opened rear end surface of the main cylinder portion 42 in the syringe body 38. The outer peripheral edge of the head 60 is brought into close contact with the inner peripheral surface of the main cylinder portion 42. At this time, the head 60 of the plunger 40 elastically overcomes the annular ridge 56 formed at the rear end of the inner peripheral surface of the main cylinder portion 42. It is desirable that the plunger 40 as described above is integrally molded from an appropriate synthetic resin such as polypropylene, high-density polyethylene or polycarbonate, similarly to the plunger 14 in the first syringe 2.

図４には、第二のシリンジ４におけるプランジャー４０に付設される混和促進部の変形例が図示されている。図４に図示する混和促進部７０における先細形状の先端部７２は、四角錐形状である基部７４とかかる基部７４の４個の角縁の各々に付設された４個の羽根片７６とから構成されている。羽根片７６の各々の半径方向外方への突出寸法は先端に向かって漸次低減されており、先端においては実質上零である。混和促進部７０先端部７２及びこれに続く接続部７８も、第二のシリンジ４におけるシリンジ本体３８の排出筒部４８及び第一のシリンジ２におけるシリンジ本体１２の排出筒部２２を挿通することができることが重要である。所望ならば、基部７４を三角錐或いは５角以上の角錐に変更し、夫々、３枚或いは５枚以上の羽根片７６を形成することもできる。 FIG. 4 shows a modified example of the mixing promoting portion attached to the plunger 40 in the second syringe 4. The tapered tip portion 72 of the mixing promoting portion 70 shown in FIG. 4 is composed of a quadrangular pyramid-shaped base portion 74 and four blade pieces 76 attached to each of the four angular edges of the base portion 74. Has been done. The radial outward protrusion dimension of each of the blade pieces 76 is gradually reduced toward the tip, and is substantially zero at the tip. The tip portion 72 of the mixing promoting portion 70 and the connecting portion 78 following the tip portion 72 may also insert the discharge cylinder portion 48 of the syringe body 38 in the second syringe 4 and the discharge cylinder portion 22 of the syringe body 12 in the first syringe 2. It is important to be able to do it. If desired, the base 74 may be changed to a triangular pyramid or a pyramid having five or more angles to form three or five or more blade pieces 76, respectively.

図５には、第一のシリンジ２におけるシリンジ本体１２の排出筒部２２に被嵌されるキャップ６が図示されている。このキャップ６は円形天壁部８２とこの天壁部８２の周縁から延出する側壁部８４を有する。側壁部８４の内周面は円筒形状であり、内径はシリンジ本体１２の排出筒部２２の外径に略対応している。一方、側壁部８４の外側形状は、先端部においては円筒形状であるが、基部においては先端部の外径よりも大きい外径を有する円錐台形状であり、指で把持して操作する際の操作性が向上されている。側壁部８４の先端外周面には、周方向に１８０度の角度間隔をおいて２個の係止突起８６ａ及び８６ｂが形成されている。かかる２個の係止突起８６ａ及び８６ｂは、シリンジ本体１２の連結筒部２４の内周面に形成されている２条の雌螺条２６ａ及び２６ｂと協働してそれ自体は周知のルアーロック機構を構成する。かようなキャップ７６はポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から形成することができる。 FIG. 5 shows a cap 6 fitted to the discharge cylinder portion 22 of the syringe body 12 in the first syringe 2. The cap 6 has a circular top wall portion 82 and a side wall portion 84 extending from the peripheral edge of the top wall portion 82. The inner peripheral surface of the side wall portion 84 has a cylindrical shape, and the inner diameter substantially corresponds to the outer diameter of the discharge cylinder portion 22 of the syringe body 12. On the other hand, the outer shape of the side wall portion 84 is a cylindrical shape at the tip portion, but is a truncated cone shape having an outer diameter larger than the outer diameter of the tip portion at the base portion, and is gripped by a finger for operation. The operability is improved. Two locking projections 86a and 86b are formed on the outer peripheral surface of the tip of the side wall portion 84 at an angle interval of 180 degrees in the circumferential direction. The two locking projections 86a and 86b cooperate with the two female threads 26a and 26b formed on the inner peripheral surface of the connecting cylinder portion 24 of the syringe body 12, and are themselves known luer locks. Configure the mechanism. Such a cap 76 can be formed from a suitable synthetic resin such as polypropylene, high density polyethylene or polycarbonate.

図６には、第二のシリンジ４６におけるシリンジ本体３８の排出筒部４８に被嵌されるキャップ８が図示されている。このキャップ８は、第一のシリンジ２におけるシリンジ本体１２の排出筒部２２に被嵌される上記キャップ６と実質上同一であり、天壁部９０とこの天壁部９０の周縁から延出する側壁部９２を有する。側壁部９２の内周面は円筒形状であり、内径はシリンジ本体３８の排出筒部４８の外径に略対応している。一方、側壁部９２の外側形状は、先端部においては円筒形状であるが、基部においては先端部の外径よりも大きい外径を有する円錐台形状であり、指で把持して操作する際の操作性が向上されている。側壁部９２の先端外周面には、周方向に１８０度の角度間隔をおいて２個の係止突起９４ａ及び９４ｂが形成されている。かかる２個の係止突起９４ａ及び９４ｂは、シリンジ本体３８の連結筒部５０の内周面に形成されている２条の雌螺条５２ａ及び５２ｂと協働してそれ自体は周知のルアーロック機構を構成する。かようなキャップ８４もポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から形成することができる。 FIG. 6 shows a cap 8 fitted to the discharge cylinder portion 48 of the syringe body 38 of the second syringe 46. The cap 8 is substantially the same as the cap 6 fitted to the discharge cylinder portion 22 of the syringe body 12 in the first syringe 2, and extends from the top wall portion 90 and the peripheral edge of the top wall portion 90. It has a side wall portion 92. The inner peripheral surface of the side wall portion 92 has a cylindrical shape, and the inner diameter substantially corresponds to the outer diameter of the discharge cylinder portion 48 of the syringe body 38. On the other hand, the outer shape of the side wall portion 92 is a cylindrical shape at the tip portion, but is a truncated cone shape having an outer diameter larger than the outer diameter of the tip portion at the base portion, and is gripped by a finger for operation. The operability is improved. Two locking projections 94a and 94b are formed on the outer peripheral surface of the tip of the side wall portion 92 at an angle interval of 180 degrees in the circumferential direction. The two locking projections 94a and 94b cooperate with the two female threads 52a and 52b formed on the inner peripheral surface of the connecting cylinder portion 50 of the syringe body 38, and are themselves known luer locks. Configure the mechanism. Such a cap 84 can also be formed from an appropriate synthetic resin such as polypropylene, high density polyethylene or polycarbonate.

図７を参照して説明を続けると、連通部材１０は円筒形状の本体部９６を有する。本体部９６の片端外周面には周方向に１８０度の角度間隔をおいて２個の係止突起９８ａ及び９８ｂが形成されており、他端外周面にも周方向に１８０度の角度間隔をおいて２個の突起１００ａ及び１００ｂが形成されている。２個の係止突起９８ａ及び９８ｂは第一のシリンジ２のシリンジ本体１２の連結筒部２４の内周面に形成されている２条の雌螺条２６ａ及び２６ｂと協働してそれ自体は周知のルアーロック機構を構成し、２個の係止突起１００ａ及び１００ｂは第二のシリンジ４６のシリンジ本体３８の連結筒部５０の内周面に形成されている２条の雌螺条５２ａ及び５２ｂと協働してそれ自体は周知のルアーロック機構を構成する。本体部９６の中間部外周面には、長手方向に若干の間隔をおいて一対のフランジ１０２が形成されている。連通部材１０を指で把持して操作する際に指を掛けることができるフランジ１０２は略楕円形状或いは円形状等の適宜の形状でよい。かような連通部材１０もポリプロピレン、高密度ポリエチレン或いはポリカーボネートの如き適宜の合成樹脂から形成することができる。 Continuing the description with reference to FIG. 7, the communication member 10 has a cylindrical main body 96. Two locking projections 98a and 98b are formed on the outer peripheral surface of one end of the main body 96 with an angular interval of 180 degrees in the circumferential direction, and the outer peripheral surface of the other end also has an angular interval of 180 degrees in the circumferential direction. Two protrusions 100a and 100b are formed therein. The two locking projections 98a and 98b cooperate with the two female threads 26a and 26b formed on the inner peripheral surface of the connecting cylinder portion 24 of the syringe body 12 of the first syringe 2 and themselves. The two locking projections 100a and 100b constitute a well-known luer lock mechanism, and the two female threads 52a and the two female threads 52a formed on the inner peripheral surface of the connecting cylinder portion 50 of the syringe body 38 of the second syringe 46. In cooperation with 52b, it itself constitutes a well-known luer lock mechanism. A pair of flanges 102 are formed on the outer peripheral surface of the intermediate portion of the main body 96 at a slight interval in the longitudinal direction. The flange 102 on which the finger can be hung when the communicating member 10 is gripped and operated by the finger may have an appropriate shape such as a substantially elliptical shape or a circular shape. Such a communicating member 10 can also be formed from an appropriate synthetic resin such as polypropylene, high density polyethylene or polycarbonate.

次に、上述したとおりの第一のシリンジ２、第二のシリンジ４、キャップ６、キャップ８及び連通部材１０から構成されている混和セットの使用様式について説明する。 Next, a usage mode of the mixing set composed of the first syringe 2, the second syringe 4, the cap 6, the cap 8 and the communication member 10 as described above will be described.

混和セットが搬送され或いは保管されるときには、図８に図示するとおり、第一のシリンジ２のシリンジ本体１２には所要量の、通常はシリンジ本体１２の全容量の半分乃至それ以下であるのが好都合である、例えば粉体である第一の内容物（図示していない）が収容される。従って、シリンジ本体１２に組み合わされるプランジャー１４のヘッド３２は長手方向においてシリンジ本体１２の中間部に位置する。シリンジ本体１２の排出筒部２２（図１）にはキャップ６が被嵌される。更に詳しくは、キャップ６の側壁部８４の先端外周面に形成されている一対の係止突起８６ａ及び８６ｂ（図５）がシリンジ本体１２の連結筒部２４の内周面に形成されている２条の雌螺条２６ａ及び２６ｂ（図１）に螺合され、これによってシリンジ本体１２にキャップ６が装着され、キャップ６の天壁部８２の内面が排出筒部２２の先端に当接されて排出筒部２２が閉塞される。同様に、図９に図示する如く、第二のシリンジ４のシリンジ本体３８には所要量の、通常はシリンジ本体３８の全容量の半分乃至それ以下であるのが好都合である、例えば液体である第二の内容物（図示していない）が収容される。従って、シリンジ本体３８に組み合わされるプランジャー４０のヘッド６０は長手方向においてシリンジ本体３８の中間部に位置する。プランジャー４０に付設されている混和促進部６４はシリンジ本体３８に収容されている第二の内容物を挿通し、その先端部６６は排出筒部４８（図２）内に進入している。シリンジ本体３８の排出筒部４８にはキャップ８が被嵌される。更に詳しくは、キャップ８の側壁部９２の先端外周面に形成されている一対の係止突起９４ａ及び９４ｂ（図７）がシリンジ本体３８の連結筒部５０の内周面に形成されている２条の雌螺条５２ａ及び５２ｂ（図２）に螺合され、これによってシリンジ本体３８にキャップ８が装着され、キャップ８の天壁部９０の内面が排出筒部４８の先端に当接されて排出筒部４８が閉塞される。 When the admixture set is transported or stored, as illustrated in FIG. 8, the syringe body 12 of the first syringe 2 has a required amount, usually half or less of the total volume of the syringe body 12. Conveniently, for example, a first content (not shown), which is a powder, is housed. Therefore, the head 32 of the plunger 14 combined with the syringe body 12 is located in the middle portion of the syringe body 12 in the longitudinal direction. A cap 6 is fitted to the discharge cylinder portion 22 (FIG. 1) of the syringe body 12. More specifically, a pair of locking projections 86a and 86b (FIG. 5) formed on the outer peripheral surface of the tip of the side wall portion 84 of the cap 6 are formed on the inner peripheral surface of the connecting cylinder portion 24 of the syringe body 12. 2 It is screwed into the female threads 26a and 26b (FIG. 1) of the strip, whereby the cap 6 is attached to the syringe body 12, and the inner surface of the top wall portion 82 of the cap 6 is brought into contact with the tip of the discharge cylinder portion 22. The discharge cylinder portion 22 is closed. Similarly, as illustrated in FIG. 9, it is convenient for the syringe body 38 of the second syringe 4 to be a required amount, usually half or less of the total volume of the syringe body 38, eg a liquid. A second content (not shown) is housed. Therefore, the head 60 of the plunger 40 combined with the syringe body 38 is located in the middle of the syringe body 38 in the longitudinal direction. The mixing promoting portion 64 attached to the plunger 40 inserts the second content housed in the syringe body 38, and the tip portion 66 thereof enters the discharge cylinder portion 48 (FIG. 2). A cap 8 is fitted to the discharge cylinder portion 48 of the syringe body 38. More specifically, a pair of locking projections 94a and 94b (FIG. 7) formed on the outer peripheral surface of the tip of the side wall portion 92 of the cap 8 are formed on the inner peripheral surface of the connecting cylinder portion 50 of the syringe body 382. It is screwed into the female threads 52a and 52b (FIG. 2) of the strip, whereby the cap 8 is attached to the syringe body 38, and the inner surface of the top wall portion 90 of the cap 8 is brought into contact with the tip of the discharge cylinder portion 48. The discharge cylinder portion 48 is closed.

図８に図示するとおりにキャップ６が装着された第一のシリンジ２及び図９に図示するとおりにキャップ８が装着された第二のシリンジ４と共に連通部材１０が一組のセットとして搬送され保管される。使用に際しては、第一のシリンジ２におけるシリンジ本体１２からキャップ６を離脱する。更に詳しくは、シリンジ本体１２の連結筒部２４の雌螺条２６ａ及び２６ｂとキャップ６の係止突起８６ａ及び８６ｂとの螺合を解除してシリンジ本体１２からキャップ６を離脱し、シリンジ本体１２の排出筒部２２の閉塞を解除する。同様に、第二のシリンジ４におけるシリンジ本体３８からキャップ８を離脱する。更に詳しくは、シリンジ本体３８の連結筒部５０の雌螺条５２ａ及び５２ｂとキャップ８の係止突起９４ａ及び９４ｂとの螺合を解除してシリンジ本体３８からキャップ８を離脱し、シリンジ本体３８の排出筒部４８の閉塞を解除する。 The communication member 10 is transported and stored as a set together with the first syringe 2 to which the cap 6 is attached as shown in FIG. 8 and the second syringe 4 to which the cap 8 is attached as shown in FIG. Will be done. At the time of use, the cap 6 is detached from the syringe body 12 of the first syringe 2. More specifically, the female threads 26a and 26b of the connecting cylinder portion 24 of the syringe body 12 and the locking projections 86a and 86b of the cap 6 are unscrewed, the cap 6 is detached from the syringe body 12, and the syringe body 12 is released. The blockage of the discharge cylinder portion 22 of the above is released. Similarly, the cap 8 is removed from the syringe body 38 of the second syringe 4. More specifically, the female threads 52a and 52b of the connecting cylinder portion 50 of the syringe body 38 and the locking projections 94a and 94b of the cap 8 are unscrewed, the cap 8 is detached from the syringe body 38, and the syringe body 38 is removed. The blockage of the discharge cylinder portion 48 of the above is released.

次いで、図１０及び図１１に図示する如く、連通部材１０における本体部９６の片端外周面に形成されている係止突起９８ａ及び９８ｂを第一のシリンジ２におけるシリンジ本体１２の連結筒部２４の雌螺条２６ａ及び２６ｂに螺合してシリンジ本体１２に連結部材１０を連結し、連通部材１０における本体部９６の片端部をシリンジ本体１２の排出筒部２２に被嵌する。そしてまた、連通部材１０における本体部９６の他端外周面に形成されている係止突起１００ａ及び１００ｂを第二のシリンジ４におけるシリンジ本体３８の連結筒部５０の雌螺条５２ａ及び５２ｂに螺合してシリンジ本体３８に連結部材１０を連結し、連通部材１０における本体部９６の他端部をシリンジ本体３８の排出筒部４８に被嵌する。かくして、第一のシリンジ２におけるシリンジ本体１２の排出筒部２２と第二のシリンジ４におけるシリンジ本体３８の排出筒部４８とが相互に連通される。かかる状態において、空気の混入を可及的に回避するために、排出筒部２２の先端と排出筒部４８の先端とは近接乃至当接していることが望ましい。 Next, as shown in FIGS. 10 and 11, the locking projections 98a and 98b formed on the outer peripheral surface of one end of the main body 96 of the communicating member 10 are connected to the connecting cylinder 24 of the syringe body 12 in the first syringe 2. The connecting member 10 is connected to the syringe body 12 by screwing into the female threads 26a and 26b, and one end of the main body 96 of the communicating member 10 is fitted to the discharge cylinder 22 of the syringe body 12. Further, the locking projections 100a and 100b formed on the outer peripheral surface of the other end of the main body 96 of the communication member 10 are screwed into the female threads 52a and 52b of the connecting cylinder 50 of the syringe body 38 in the second syringe 4. Together, the connecting member 10 is connected to the syringe body 38, and the other end of the body 96 of the communicating member 10 is fitted to the discharge cylinder 48 of the syringe body 38. Thus, the discharge cylinder portion 22 of the syringe body 12 in the first syringe 2 and the discharge cylinder portion 48 of the syringe body 38 in the second syringe 4 are communicated with each other. In such a state, in order to avoid mixing of air as much as possible, it is desirable that the tip of the discharge cylinder portion 22 and the tip of the discharge cylinder portion 48 are in close proximity or in contact with each other.

しかる後に、第二のシリンジ４におけるプランジャー４０を前進させる、即ちシリンジ本体３８の排出筒部４８に向けて移動させる。かくすると、第二のシリンジ４のシリンジ本体３８内に収容されていた第二の内容物がシリンジ本体３８の排出筒部４８及びシリンジ本体１２の排出筒部２２を通して第一のシリンジ２のシリンジ本体１２内に導入され、これに応じて第一のシリンジ２におけるプランジャー１４は排出筒部２２から遠ざかる方向に後退される。同時に、第二のシリンジ４のプランジャー４０に付設されている混和促進部６４がシリンジ本体３８の排出筒部４８及びシリンジ本体１２の排出筒部２２を挿通して第一のシリンジ２におけるシリンジ本体１２内に進入し、シリンジ本体１２に収容されている第一の内容物内に突入する。かくして、第一のシリンジ２におけるシリンジ本体１２内に収容されている第一の内容物が微細な粉体であり、第二のシリンジ４におけるシリンジ本体３８内に収容されている第二の内容物が液体である場合でも、第一の内容物と第二の内容物とが効果的に混和される。第一の内容物と第二の内容物とを効果的に混和するためには、第二のシリンジ４におけるプランジャー４０に付設されている混和促進部材６４が第一のシリンジ２におけるシリンジ本体１２内に収容されている第一の内容物内に充分に突入することが重要であり、そのためには第二のシリンジ４におけるシリンジ本体３８の容積に対するプランジャー４０のストローク長が比較的長いことが必要である。そのためには、第一のシリンジ２におけるシリンジ本体１２の内径よりも第二のシリンジ４におけるシリンジ本体３８の内径を小さくすることが望ましい。 After that, the plunger 40 in the second syringe 4 is advanced, that is, moved toward the discharge cylinder portion 48 of the syringe body 38. Thus, the second content contained in the syringe body 38 of the second syringe 4 passes through the discharge tube portion 48 of the syringe body 38 and the discharge tube portion 22 of the syringe body 12, and the syringe body of the first syringe 2. Introduced into 12, the plunger 14 in the first syringe 2 is retracted in a direction away from the discharge tube portion 22 accordingly. At the same time, the mixing promotion unit 64 attached to the plunger 40 of the second syringe 4 inserts the discharge cylinder portion 48 of the syringe body 38 and the discharge cylinder portion 22 of the syringe body 12 to insert the syringe body of the first syringe 2. It enters the inside of the syringe 12 and rushes into the first content contained in the syringe body 12. Thus, the first content contained in the syringe body 12 of the first syringe 2 is a fine powder, and the second content contained in the syringe body 38 of the second syringe 4 Even when is a liquid, the first and second contents are effectively miscible. In order to effectively mix the first content and the second content, the mixing promoting member 64 attached to the plunger 40 in the second syringe 4 is the syringe body 12 in the first syringe 2. It is important to fully penetrate into the first content contained therein, for which the stroke length of the plunger 40 relative to the volume of the syringe body 38 in the second syringe 4 is relatively long. is necessary. For that purpose, it is desirable that the inner diameter of the syringe body 38 in the second syringe 4 is smaller than the inner diameter of the syringe body 12 in the first syringe 2.

第一の内容物と第二の内容物とを充分に混和するために、必要に応じて、第一のシリンジ２におけるプランジャー１４を前進させて、第一のシリンジ２におけるシリンジ本体１２内に存在する第一の内容物と第二の内容物とをシリンジ本体１２の排出筒部２２及びシリンジ本体３８の排出筒部４８を通して第二のシリンジ４のシリンジ本体３８内に導入し、これに応じて第二のシリンジ４におけるプランジャー４０を排出筒部４８から遠ざかる方向に後退させ、次いで第二のシリンジ４におけるプランジャー４０を前進させて、第二のシリンジ４のシリンジ本体３８内に存在する第一の内容物と第二の内容物とをシリンジ本体３８の排出筒部４８及びシリンジ本体１２の排出筒部２２を通して第一のシリンジ２のシリンジ本体１２内に戻し、これに応じて第一のシリンジ２におけるプランジャー１４を排出筒部２２から遠ざかる方向に後退させる。かような操作を所要回数繰り返すことによって、第一の内容物と第二の内容物とは充分に混和される。 If necessary, the plunger 14 in the first syringe 2 is advanced into the syringe body 12 in the first syringe 2 in order to sufficiently mix the first content and the second content. The existing first and second contents are introduced into the syringe body 38 of the second syringe 4 through the discharge tube 22 of the syringe body 12 and the discharge tube 48 of the syringe body 38, and accordingly. The plunger 40 in the second syringe 4 is retracted in the direction away from the discharge cylinder portion 48, and then the plunger 40 in the second syringe 4 is advanced so as to exist in the syringe body 38 of the second syringe 4. The first contents and the second contents are returned to the inside of the syringe body 12 of the first syringe 2 through the discharge cylinder portion 48 of the syringe body 38 and the discharge cylinder portion 22 of the syringe body 12, and the first contents are returned accordingly. The plunger 14 in the syringe 2 of the above is retracted in a direction away from the discharge cylinder portion 22. By repeating such an operation a required number of times, the first content and the second content are sufficiently mixed.

上記のとおりにして第一の内容物と第二の内容物とを充分に混和した後には、第一のシリンジ２におけるシリンジ本体１２の連結筒部２４の雌螺条２６ａ及び２６ｂと連通部材１０における本体部９６の係止突起９８ａ及び９８ｂとの螺合を解除して、第一のシリンジ２から連通部材１０を離脱する。次いで、第一のシリンジ２におけるプランジャー１４を前進させて、シリンジ本体１２内に存在している第一の内容物と第二の内容物との混和物を排出筒部２２を通して所要部位に排出する。 After the first content and the second content are sufficiently mixed as described above, the female threads 26a and 26b of the connecting cylinder portion 24 of the syringe body 12 in the first syringe 2 and the communicating member 10 are used. The communication member 10 is detached from the first syringe 2 by releasing the screwing of the main body 96 with the locking projections 98a and 98b. Next, the plunger 14 in the first syringe 2 is advanced, and the mixture of the first content and the second content existing in the syringe body 12 is discharged to the required portion through the discharge cylinder portion 22. do.

２：第一のシリンジ
４：第二のシリンジ
６：キャップ
８：キャップ
１０：連通部材
１２：シリンジ本体
１４：プランジャー
１６：主筒部
１８：前壁部
２０：開口
２２：排出筒部
２４：連結筒部
２６ａ：雌螺条
２６ｂ：雌螺条
３８：シリンジ本体
４０：プランジャー
４２：主筒部
４４：前壁部
４６：開口
４８：排出筒部
５０：連結筒部
５２ａ：雌螺条
５２ｂ：雌螺条
６４：混和促進部材
６６：混和促進部材の先端部
６８：混和促進部材の接続部
７０：混和促進部材
７２：混和促進部材の先端部
７６：羽根片
８０：キャップ
８２：天壁部
８４：側壁部
８６ａ：係止突起
８６ｂ：係止突起
８８：キャップ
９０：天壁部
９２：側壁部
９４ａ：係止突起
９４ｂ：係止突起
９６：連通部材の本体部
９８ａ：係止突起
９８ｂ：係止突起
１００ａ：係止突起
１００ｂ：係止突起 2: First syringe 4: Second syringe 6: Cap 8: Cap 10: Communication member 12: Syringe body 14: Plunger 16: Main cylinder part 18: Front wall part 20: Opening 22: Discharge cylinder part 24: Connecting cylinder 26a: Female screw 26b: Female screw 38: Syringe body 40: Plunger 42: Main cylinder 44: Front wall 46: Opening 48: Discharge cylinder 50: Connecting cylinder 52a: Female screw 52b : Female screw 64: Mixing promoting member 66: Tip of mixing promoting member 68: Connecting part of mixing promoting member 70: Mixing promoting member 72: Tip of mixing promoting member 76: Blade piece 80: Cap 82: Top wall 84: Side wall part 86a: Locking protrusion 86b: Locking protrusion 88: Cap 90: Top wall part 92: Side wall part 94a: Locking protrusion 94b: Locking protrusion 96: Main body part of communication member 98a: Locking protrusion 98b: Locking protrusion 100a: Locking protrusion 100b: Locking protrusion

Claims

Includes a first syringe containing the first contents, a second syringe containing the second contents and a communication member.
The first syringe is composed of a syringe body and a plunger, and the syringe body is a cylindrical main cylinder portion, a front wall portion disposed on the front end surface of the main cylinder portion and having an opening, and the front portion thereof. Includes a truncated cone-shaped to cylindrical discharge tube that extends from the periphery of the opening in the wall.
The second syringe is also composed of a syringe body and a plunger, and the syringe body is a cylindrical main cylinder portion, a front wall portion disposed on the front end surface of the main cylinder portion and having an opening, and the front portion thereof. Includes a truncated cone-shaped to cylindrical discharge tube that extends from the periphery of the opening in the wall.
The communicating member has a cylindrical main body portion, one end portion of the main body portion is fitted to the discharge cylinder portion of the syringe main body of the first syringe, and the other end portion of the main body portion is the second. The syringe is fitted into the discharge cylinder portion of the syringe body, and the discharge cylinder portion of the first syringe in the syringe body and the discharge cylinder portion of the second syringe in the syringe body are communicated with each other. ,
A miscible set featuring that.

In the syringe body of the first syringe, the opening is arranged in the center of the front wall portion, the outer diameter of the discharge cylinder portion is smaller than the outer diameter of the main cylinder portion, and the discharge cylinder portion is It is arranged concentrically with the main cylinder portion, and is arranged concentrically with the main cylinder portion.
Also in the syringe body of the second syringe, the opening is arranged in the center of the front wall portion, the outer diameter of the discharge cylinder portion is smaller than the outer diameter of the main cylinder portion, and the discharge cylinder portion is used. The portions are arranged concentrically with the main cylinder portion,
The miscible set according to claim 1.

The syringe body of the first syringe includes a cylindrical connecting cylinder portion extending from the front wall portion, and the connecting cylinder portion has an inner diameter larger than the outer diameter of the discharging cylinder portion and the discharging cylinder portion. It is arranged concentrically with the portion, and two female threads are formed on the inner peripheral surface of the connecting cylinder portion at intervals of 180 degrees in the circumferential direction.
The syringe body of the second syringe also includes a cylindrical connecting cylinder portion extending from the front wall portion, and the connecting cylinder portion has an inner diameter larger than the outer diameter of the discharging cylinder portion and the discharging cylinder portion. It is arranged concentrically with the portion, and two female threads are formed on the inner peripheral surface of the connecting cylinder portion at intervals of 180 degrees in the circumferential direction.
Two locking projections are formed on the outer peripheral surface of one end and the outer peripheral surface of the other end of the main body of the communicating member, respectively, at intervals of 180 degrees.
The two female threads formed on the connecting cylinder portion of the syringe body of the first syringe and the two locks formed on the outer peripheral surface of the one end of the main body portion of the communicating member. The protrusion constitutes the first lure lock mechanism,
The two female threads formed on the connecting cylinder portion of the syringe body of the second syringe and the two engagements formed on the outer peripheral surface of the other end of the main body portion of the communicating member. The stop protrusion constitutes the second luer lock mechanism,
The admixture set according to claim 1 or 2.

The first syringe has a circular tip wall portion and a tubular side wall portion extending from the peripheral edge of the tip wall portion, and includes a cap fitted to the discharge cylinder portion in the syringe body.
The second syringe also has a circular tip wall portion and a tubular side wall portion extending from the peripheral edge of the tip wall portion, and also includes a cap fitted to the discharge cylinder portion in the syringe body.
The admixture set according to claim 1 or 2.

The syringe body of the first syringe includes a cylindrical connecting cylinder portion extending from the front wall portion, and the connecting cylinder portion has an inner diameter larger than the outer diameter of the discharging cylinder portion and the discharging cylinder portion. It is arranged concentrically with the portion, and two female threads are formed on the inner peripheral surface of the connecting cylinder portion at intervals of 180 degrees in the circumferential direction.
The syringe body of the second syringe also includes a cylindrical connecting cylinder portion extending from the front wall portion, and the connecting cylinder portion has an inner diameter larger than the outer diameter of the discharging cylinder portion and the discharging cylinder portion. It is arranged concentrically with the portion, and two female threads are formed on the inner peripheral surface of the connecting cylinder portion at intervals of 180 degrees in the circumferential direction.
Two locks are provided on the outer peripheral surface of the tip of the side wall of the cap of the first syringe and on the outer peripheral surface of the tip of the side wall of the cap of the second syringe, respectively, at an interval of 180 degrees. Protrusions are formed
The two female threads formed on the connecting cylinder portion of the syringe body of the first syringe and the two locking projections formed on the outer peripheral surface of the tip of the side wall portion of the cap are Consists of the first lure lock mechanism,
The two female threads formed on the connecting cylinder portion of the syringe body of the second syringe and the two locking protrusions formed on the outer peripheral surface of the tip of the side wall portion of the cap. Consists of a second luer lock mechanism,
The admixture set according to claim 4.

The plunger of the second syringe is provided with an admixture promoting portion that extends forward and has a tapered tip, and the admixture promoting portion is the discharge cylinder in the syringe body of the second syringe. The first unit, which is housed in the main cylinder of the shilling body of the first syringe, through the main body of the communicating member and the discharge tube of the first syringe in the syringe body. The admixture set according to any one of claims 1 to 5, which allows entry into the contents.

The mixing set according to claim 6, wherein the connecting portion of the mixing promoting portion following the tip portion does not project radially beyond the proximal end surface of the tip portion.

The mixing set according to claim 6 or 7, wherein the tip of the mixing promoting portion has a conical or pyramidal shape.

The mixing set according to claim 6 or 7, wherein the tips of the mixing promoting portions are arranged at intervals in the circumferential direction and have a plurality of blade pieces whose radial width gradually decreases toward the tips.

The first content contained in the first syringe is a powder, and the second content contained in the second syringe is a liquid, according to claims 1 to 9. The mixture set described in either.

The admixture set according to any one of claims 1 to 10, wherein the inner diameter of the syringe body of the second syringe is smaller than the inner diameter of the syringe body of the first syringe.