JP2017144184A - Adaptor - Google Patents

Adaptor Download PDF

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JP2017144184A
JP2017144184A JP2016030388A JP2016030388A JP2017144184A JP 2017144184 A JP2017144184 A JP 2017144184A JP 2016030388 A JP2016030388 A JP 2016030388A JP 2016030388 A JP2016030388 A JP 2016030388A JP 2017144184 A JP2017144184 A JP 2017144184A
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adapter
connector
male member
patient
male
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JP6807012B2 (en
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毅彦 幸
Takehiko Yuki
毅彦 幸
純次 浮田
Junji Ukita
純次 浮田
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JMS Co Ltd
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JMS Co Ltd
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Priority to JP2016030388A priority Critical patent/JP6807012B2/en
Priority to KR1020187025283A priority patent/KR20180114085A/en
Priority to CN201780005818.4A priority patent/CN108472478A/en
Priority to CN202210124369.8A priority patent/CN114366669A/en
Priority to PCT/JP2017/005085 priority patent/WO2017141858A1/en
Publication of JP2017144184A publication Critical patent/JP2017144184A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J15/00Feeding-tubes for therapeutic purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J15/00Feeding-tubes for therapeutic purposes
    • A61J15/0003Nasal or oral feeding-tubes, e.g. tube entering body through nose or mouth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J15/00Feeding-tubes for therapeutic purposes
    • A61J15/0026Parts, details or accessories for feeding-tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/08Tubes; Storage means specially adapted therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/08Tubes; Storage means specially adapted therefor
    • A61M2039/085Tubes; Storage means specially adapted therefor external enteral feeding tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M39/00Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10Tube connectors; Tube couplings
    • A61M2039/1077Adapters, e.g. couplings adapting a connector to one or several other connectors

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

Abstract

PROBLEM TO BE SOLVED: To prevent a liquid object from being stuck to a gap between a male member and an outer casing of a male connector caused by performing an enteral nutrition.SOLUTION: An adaptor 1 includes a female connector 110 at one end, and a male connector 120 at the other end. The female connector 110 includes a tubular part 111 having a hollow cylindrical shape, and a spiral projection 115 formed on an outer peripheral surface of the tubular part 111. The male connector 120 includes a cylindrical male member 121, an outer casing 123 provided to enclose the male member 121, and a female thread 125 provided on an inner peripheral surface of the outer casing. The tubular part 111 and the male member 121 are communicated to each other.SELECTED DRAWING: Figure 2

Description

本発明は、経腸栄養法に用いられるオスコネクタに装着することができるアダプタに関する。   The present invention relates to an adapter that can be attached to a male connector used in enteral nutrition.

食事を口から摂れなくなった患者に栄養剤や薬剤等を含む液状物を投与する方法として経腸栄養法が知られている。経腸栄養法では、カテーテルを体外から消化管(例えば胃)内に挿入した状態で患者に留置する。カテーテルとしては、患者の鼻から挿入する経鼻カテーテルや、患者の腹に形成された胃ろうに挿入するPEG(Percutaneous Endoscopic Gastrostomy)カテーテル等が知られている。カテーテルを介して栄養剤、流動食(一般に「経腸栄養剤」と呼ばれる)、又は薬剤などの液状物が患者に投与される。患者に液状物を投与する際には、液状物を貯留した容器と、患者に留置されたカテーテル(経鼻カテーテル、PEGカテーテルなど)とが、柔軟なチューブ等を介して接続される。異なる部材を接続するため、従来、液状物の流れに関して上流側(容器側)のコネクタ(以下「容器側コネクタ」という)としてオスコネクタが、また、下流側(患者側)のコネクタ(以下「患者側コネクタ」という)としてメスコネクタが、それぞれ用いられていた(例えば特許文献1参照)。   Enteral nutrition is known as a method of administering a liquid substance containing a nutrient or a drug to a patient who cannot take a meal from the mouth. In enteral nutrition, a catheter is placed in a patient with the catheter inserted from the outside of the body into the digestive tract (for example, the stomach). Known catheters include a nasal catheter inserted from the patient's nose, a PEG (Percutaneous Endoscopic Gastrostomy) catheter inserted into a gastric fistula formed on the patient's abdomen, and the like. A liquid such as a nutrient, liquid food (commonly referred to as “enteral nutrient”), or a drug is administered to a patient via a catheter. When a liquid substance is administered to a patient, a container storing the liquid substance and a catheter (nasal catheter, PEG catheter, etc.) placed in the patient are connected via a flexible tube or the like. In order to connect different members, conventionally, a male connector has been used as an upstream (container side) connector (hereinafter referred to as “container side connector”) with respect to the flow of liquid material, and a downstream (patient side) connector (hereinafter referred to as “patient”). Female connectors are used as the “side connectors” (see, for example, Patent Document 1).

近年、経腸栄養以外の分野で使用されるコネクタとの誤接続を防止するために、容器側コネクタとして図13A及び図13Bに示すメスコネクタ910が、また、患者側コネクタとして図14A及び図14Bに示すオスコネクタ920が、栄養系の医療機器に関する国際規格ISO80369−3として国際標準化されることが検討されている。   In recent years, in order to prevent erroneous connection with connectors used in fields other than enteral nutrition, the female connector 910 shown in FIGS. 13A and 13B is used as a container-side connector, and FIGS. 14A and 14B are used as patient-side connectors. It is considered that the male connector 920 shown in FIG. 1 is internationally standardized as an international standard ISO 80369-3 regarding nutritional medical devices.

図13A及び図13Bに示すメスコネクタ(容器側コネクタ)910は、中空円筒形状の管状部(メス部材)911を有する。管状部911の内周面912は、先端に近づくにしたがって内径が大きくなるテーパ面(いわゆるメステーパ面)である。管状部911の外周面には螺状突起(雄ネジ)915が設けられている。   A female connector (container-side connector) 910 shown in FIGS. 13A and 13B has a tubular portion (female member) 911 having a hollow cylindrical shape. The inner peripheral surface 912 of the tubular portion 911 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip. A screw-shaped projection (male thread) 915 is provided on the outer peripheral surface of the tubular portion 911.

図14A及び図14Bに示すオスコネクタ(患者側コネクタ)920は、筒形状のオス部材921と、オス部材921を取り囲む外筒923とを有する。オス部材921と外筒923とは、オス部材921の基端部から半径方向に沿ってフランジ状に突出した底板924を介して連結されている。オス部材921の外周面922は、先端に近づくにしたがって外径が小さくなるテーパ面(いわゆるオステーパ面)である。オス部材921には、その長手方向に沿ってオス部材921を貫通する流路927が設けられている。外筒923のオス部材921に対向する内周面には雌ネジ925が設けられている。   A male connector (patient-side connector) 920 shown in FIGS. 14A and 14B includes a cylindrical male member 921 and an outer cylinder 923 that surrounds the male member 921. The male member 921 and the outer cylinder 923 are connected via a bottom plate 924 protruding in a flange shape along the radial direction from the base end portion of the male member 921. The outer peripheral surface 922 of the male member 921 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip. The male member 921 is provided with a flow path 927 that penetrates the male member 921 along the longitudinal direction thereof. A female screw 925 is provided on the inner peripheral surface of the outer cylinder 923 facing the male member 921.

容器側コネクタ910と患者側コネクタ920とは、図15に示すように、管状部911にオス部材921を挿入し、且つ、螺状突起915と雌ネジ925とを螺合させることにより接続される。管状部911の内周面912とオス部材921の外周面922とは、径及びテーパ角度が一致するテーパ面であるから、両者は、液密なシールを形成して面接触をする。互いに螺合する螺状突起915及び雌ネジ925は、容器側コネクタ910と患者側コネクタ920との接続状態をロックするためのネジロック機構を構成する。容器側コネクタ910と患者側コネクタ920とは、液密性(液状物に圧力を加えても容器側コネクタ910と患者側コネクタ920との接続部分から液状物が漏れ出さない性質)と接続強度(接続された容器側コネクタ910と患者側コネクタ920とが引張り力を加えても分離しない性質)に優れた接続を提供する。   As shown in FIG. 15, the container-side connector 910 and the patient-side connector 920 are connected by inserting a male member 921 into the tubular portion 911 and screwing a screw-shaped protrusion 915 and a female screw 925. . Since the inner peripheral surface 912 of the tubular portion 911 and the outer peripheral surface 922 of the male member 921 are tapered surfaces having the same diameter and taper angle, they form a liquid-tight seal and come into surface contact. The screw-shaped protrusion 915 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the container-side connector 910 and the patient-side connector 920. The container-side connector 910 and the patient-side connector 920 are liquid-tight (property that the liquid material does not leak from the connecting portion between the container-side connector 910 and the patient-side connector 920 even when pressure is applied to the liquid material) and connection strength ( The connected container side connector 910 and the patient side connector 920 do not separate even when a tensile force is applied.

国際公開第2008/152871号パンフレットInternational Publication No. 2008/152871 Pamphlet

経腸栄養法を行う場合、患者の体内へ注入される空気量を可能な限り少なくするために、容器側コネクタ910と患者側コネクタ920とを接続する直前に、容器側コネクタ910の管状部911の先端まで液状物を導入することがある。この状態で容器側コネクタ910と患者側コネクタ920とを接続すると、管状部911内にオスコネクタ920のオス部材921が挿入されることによって、管状部911内の液状物が、オス部材921と外筒923との間の隙間926内にあふれ出る。この液状物は、経腸栄養法を終了し、容器側コネクタ910と患者側コネクタ920とを分離した後も、隙間926内に残留する。   When performing enteral nutrition, the tubular portion 911 of the container-side connector 910 is provided immediately before connecting the container-side connector 910 and the patient-side connector 920 in order to reduce the amount of air injected into the patient's body as much as possible. In some cases, a liquid material may be introduced to the tip of the. When the container side connector 910 and the patient side connector 920 are connected in this state, the male member 921 of the male connector 920 is inserted into the tubular portion 911, so that the liquid in the tubular portion 911 is removed from the male member 921. It overflows into the gap 926 between the cylinder 923. This liquid material remains in the gap 926 even after the enteral nutrition method is completed and the container-side connector 910 and the patient-side connector 920 are separated.

オス部材921の外周面922と外筒923の雌ネジ925との間の間隔は非常に狭い。従って、オス部材921と外筒923との間の隙間926に例えば綿棒を挿入して、隙間926に残留した液状物を拭き取ることは困難である。   The distance between the outer peripheral surface 922 of the male member 921 and the female screw 925 of the outer cylinder 923 is very narrow. Therefore, it is difficult to wipe off the liquid material remaining in the gap 926 by inserting, for example, a cotton swab into the gap 926 between the male member 921 and the outer cylinder 923.

患者側コネクタ920が患者に挿入されたカテーテルの上流側端に設けられている場合には、患者側コネクタ920は当該カテーテルとともに患者に留置され続ける。カテーテルの交換は、PEGカテーテルの場合、通常1〜3ヶ月ごとに行われる。液状物が残留した患者側コネクタ920がこのように長期にわたって患者に留置され続けると、患者側コネクタ920は不衛生状態に至りうる。そして、遂には、患者側コネクタ920内で菌が繁殖し、当該菌が患者の体内に侵入し、重症な合併症を引き起こす可能性がある。   When the patient-side connector 920 is provided at the upstream end of the catheter inserted into the patient, the patient-side connector 920 continues to be placed in the patient together with the catheter. In the case of a PEG catheter, the replacement of the catheter is usually performed every 1 to 3 months. If the patient-side connector 920 in which the liquid material remains is left in the patient for such a long period of time, the patient-side connector 920 may be in an unsanitary state. Finally, bacteria may propagate in the patient-side connector 920, and the bacteria may enter the patient's body and cause serious complications.

本発明の目的は、上記の課題を解決し、患者側コネクタのオス部材と外筒との間の隙間に付着する液状物を少なくすることにある。   The object of the present invention is to solve the above-mentioned problems and to reduce the amount of liquid material adhering to the gap between the male member of the patient-side connector and the outer cylinder.

本発明のアダプタは、一端にメスコネクタを備え、他端にオスコネクタを備える。前記メスコネクタは、中空円筒形状を有する管状部と、前記管状部の外周面に設けられた螺状突起とを備える。前記オスコネクタは、筒状のオス部材と、前記オス部材と同軸に、前記オス部材を取り囲むように設けられた外筒と、前記外筒の内周面に設けられた雌ネジとを備える。前記管状部と前記オス部材とは連通されている。   The adapter of the present invention includes a female connector at one end and a male connector at the other end. The female connector includes a tubular portion having a hollow cylindrical shape and a screw-like projection provided on an outer peripheral surface of the tubular portion. The male connector includes a cylindrical male member, an outer cylinder provided so as to surround the male member, coaxially with the male member, and a female screw provided on an inner peripheral surface of the outer cylinder. The tubular portion and the male member are in communication.

経腸栄養法を行う場合には、最初にアダプタのメスコネクタを患者側コネクタに接続し、次いで、アダプタのオスコネクタに容器側コネクタを接続し、その後、液状物をアダプタを介して患者に投与する。これにより、容器側コネクタの管状部の先端まで液状物が導入されていても、患者側コネクタのオス部材と外筒との間の隙間内に付着する液状物を少なくすることができる。従って、患者側コネクタが長期間にわたって患者に留置されたとしても患者側コネクタが不衛生状態に至る可能性を低減できる。   When performing enteral nutrition, first connect the female connector of the adapter to the patient-side connector, then connect the container-side connector to the male connector of the adapter, and then administer liquid to the patient via the adapter. To do. Thereby, even if the liquid material is introduced to the distal end of the tubular portion of the container-side connector, the liquid material adhering in the gap between the male member of the patient-side connector and the outer cylinder can be reduced. Therefore, even if the patient-side connector is left in the patient for a long period of time, the possibility that the patient-side connector will become unsanitary can be reduced.

アダプタは、経腸栄養法を行った後、患者側コネクタ及び容器側コネクタから分離し、交換又は洗浄することができる。   The adapter can be separated from the patient connector and the container connector and replaced or washed after enteral nutrition.

図1Aは、本発明の実施形態1にかかるアダプタのメスコネクタ側から見た斜視図である。図1Bは、本発明の実施形態1にかかるアダプタのオスコネクタ側から見た斜視図である。FIG. 1A is a perspective view of an adapter according to Embodiment 1 of the present invention as viewed from the female connector side. FIG. 1B is a perspective view of the adapter according to Embodiment 1 of the present invention as viewed from the male connector side. 図2は、本発明の実施形態1にかかるアダプタの断面図である。FIG. 2 is a cross-sectional view of the adapter according to the first embodiment of the present invention. 図3Aは、本発明の実施形態1にかかるアダプタの使用方法を説明する分解斜視図である。FIG. 3A is an exploded perspective view for explaining how to use the adapter according to the first embodiment of the present invention. 図3Bは、図3Aの断面図である。3B is a cross-sectional view of FIG. 3A. 図4Aは、本発明の実施形態1にかかるアダプタを患者側コネクタに接続した状態を示した斜視図である。FIG. 4A is a perspective view showing a state in which the adapter according to Embodiment 1 of the present invention is connected to a patient-side connector. 図4Bは、図4Aの断面図である。4B is a cross-sectional view of FIG. 4A. 図5Aは、患者側コネクタと容器側コネクタとを本発明の実施形態1にかかるアダプタを介して接続した状態を示した斜視図である。FIG. 5A is a perspective view illustrating a state where the patient-side connector and the container-side connector are connected via the adapter according to the first embodiment of the present invention. 図5Bは、図5Aの断面図である。FIG. 5B is a cross-sectional view of FIG. 5A. 図6Aは、本発明の実施形態2にかかるアダプタのメスコネクタ側から見た斜視図である。FIG. 6A is a perspective view of an adapter according to Embodiment 2 of the present invention as viewed from the female connector side. 図6Bは、本発明の実施形態2にかかるアダプタの断面図である。FIG. 6B is a cross-sectional view of the adapter according to Embodiment 2 of the present invention. 図7Aは、本発明の実施形態3にかかるアダプタのメスコネクタ側から見た斜視図である。FIG. 7A is a perspective view of an adapter according to a third embodiment of the present invention as viewed from the female connector side. 図7Bは、本発明の実施形態3にかかるアダプタの断面図である。FIG. 7B is a cross-sectional view of the adapter according to Embodiment 3 of the present invention. 図8は、本発明の実施形態3にかかるアダプタの分解斜視図である。FIG. 8 is an exploded perspective view of the adapter according to the third embodiment of the present invention. 図9は、本発明の実施形態4にかかるアダプタの断面図である。FIG. 9 is a cross-sectional view of an adapter according to Embodiment 4 of the present invention. 図10は、患者側コネクタと容器側コネクタとを本発明の実施形態4にかかるアダプタを介して接続した状態を示した断面図である。FIG. 10: is sectional drawing which showed the state which connected the patient side connector and the container side connector via the adapter concerning Embodiment 4 of this invention. 図11Aは、本発明の実施形態4にかかるアダプタと患者側コネクタとの接続部分を示した拡大断面図である。図11Bは、本発明の実施形態1にかかるアダプタと患者側コネクタとの接続部分を示した拡大断面図である。FIG. 11A is an enlarged cross-sectional view showing a connection portion between an adapter and a patient-side connector according to Embodiment 4 of the present invention. FIG. 11B is an enlarged cross-sectional view illustrating a connection portion between the adapter and the patient-side connector according to Embodiment 1 of the present invention. 図12Aは、本発明の実施形態5にかかるアダプタのオスコネクタ側から見た斜視図である。図12Bは、本発明の実施形態5にかかるアダプタの断面斜視図である。FIG. 12A is a perspective view of an adapter according to a fifth embodiment of the present invention as viewed from the male connector side. FIG. 12B is a cross-sectional perspective view of an adapter according to Embodiment 5 of the present invention. 図13Aは、ISO80369−3として検討されているメスコネクタの斜視図である。図13Bは、当該メスコネクタの中心軸を含む面に沿った断面図である。FIG. 13A is a perspective view of a female connector considered as ISO 80369-3. FIG. 13B is a cross-sectional view taken along a plane including the central axis of the female connector. 図14Aは、ISO80369−3として検討されているオスコネクタの斜視図である。図14Bは、当該オスコネクタの中心軸を含む面に沿った断面図である。FIG. 14A is a perspective view of a male connector being considered as ISO80369-3. FIG. 14B is a cross-sectional view taken along a plane including the central axis of the male connector. 図15は、ISO80369−3として検討されているオスコネクタとメスコネクタとを接続した状態を示した断面図である。FIG. 15 is a cross-sectional view showing a state in which a male connector and a female connector that are under consideration as ISO 80369-3 are connected.

本発明のアダプタは、全体が一部品として一体的に成形された一体成形品であってもよい。これは、患者側コネクタ及び容器側コネクタに対するアダプタの着脱作業の容易化、及び、アダプタの製造の容易化に有利である。   The adapter of the present invention may be an integrally molded product that is integrally molded as a single part. This is advantageous in facilitating the attaching / detaching operation of the adapter to / from the patient side connector and the container side connector and facilitating the manufacture of the adapter.

本発明のアダプタにおいて、前記オスコネクタは、前記オス部材の基端部と前記外筒とをつなぐ底板を更に備えうる。この場合、前記底板または前記外筒に、少なくとも1つの貫通孔が設けられていてもよい。これは、経腸栄養法を行った後のアダプタの洗浄性の向上に有利である。   The adapter of this invention WHEREIN: The said male connector can further be provided with the baseplate which connects the base end part of the said male member, and the said outer cylinder. In this case, at least one through hole may be provided in the bottom plate or the outer cylinder. This is advantageous in improving the cleaning properties of the adapter after performing enteral nutrition.

本発明のアダプタにおいて、前記外筒及び前記雌ネジを備えた外筒部品が前記オス部材に対して着脱可能であってもい。これは、経腸栄養法を行った後のアダプタの洗浄性の向上に有利である。   The adapter of this invention WHEREIN: The outer cylinder component provided with the said outer cylinder and the said internal thread may be detachable with respect to the said male member. This is advantageous in improving the cleaning properties of the adapter after performing enteral nutrition.

上記において、前記メスコネクタから前記オス部材までを含むアダプタ本体が、一部品として一体的に成形された一体成形品であってもよい。これは、アダプタ本体に対する外筒部品の着脱作業の容易化、及び、アダプタ本体の製造の容易化に有利である。   In the above, the adapter main body including the female connector to the male member may be an integrally molded product integrally molded as one component. This is advantageous for facilitating the attaching / detaching operation of the outer cylinder part to / from the adapter body and facilitating the manufacture of the adapter body.

本発明のアダプタにおいて、前記メスコネクタは、前記管状部と同軸に、前記管状部に取り囲まれるように配置された、中空円筒形状を有する筒状部を更に備えてもよい。この場合、前記筒状部は、前記メスコネクタを筒状のオス部材を備えた患者側コネクタに接続したとき、前記筒状部と前記患者側コネクタの前記オス部材との間に液密なシールが形成されるように構成されうる。この構成は、アダプタと患者側コネクタとを分離後に、患者側コネクタのオス部材と外筒との間の隙間に液状物が流れ込むのを防止するのに有利である。   In the adapter according to the aspect of the invention, the female connector may further include a cylindrical portion having a hollow cylindrical shape arranged so as to be surrounded by the tubular portion, coaxially with the tubular portion. In this case, the tubular portion is a liquid-tight seal between the tubular portion and the male member of the patient-side connector when the female connector is connected to a patient-side connector having a tubular male member. Can be formed. This configuration is advantageous in preventing the liquid material from flowing into the gap between the male member of the patient-side connector and the outer cylinder after the adapter and the patient-side connector are separated.

上記において、前記液密なシールは、前記筒状部の外周面と前記患者側コネクタの前記オス部材の内周面との間に形成されうる。これは、簡単な構成で液密なシールを形成するのに有利である。   In the above, the liquid-tight seal may be formed between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the male member of the patient-side connector. This is advantageous for forming a liquid tight seal with a simple construction.

前記管状部と前記オス部材とをつなぐ流路上にフィルタが設けられていてもよい。これは、アダプタより下流側の流路(例えば、患者に留置されたカテーテル)が液状物中の粗大固形物で閉塞するという事態の発生を防止するのに有利である。   A filter may be provided on a flow path connecting the tubular portion and the male member. This is advantageous in preventing the occurrence of a situation in which the flow path downstream of the adapter (for example, a catheter placed in the patient) is blocked by a coarse solid in the liquid.

上記において、前記フィルタが、前記オス部材の先端に設けられていることが好ましい。これは、フィルタの目詰まりの有無を容易に視認するのに有利である。   In the above, it is preferable that the filter is provided at a tip of the male member. This is advantageous for easily checking the presence or absence of clogging of the filter.

アダプタに設けられた前記メスコネクタ及び前記オスコネクタは、ISO80369−3に準拠していることが好ましい。これにより、アダプタを、ISO80369−3に準拠した患者側コネクタ及び容器側コネクタに対して所望の液密性及び接続強度で接続することができる。   It is preferable that the female connector and the male connector provided in the adapter conform to ISO 80369-3. Thereby, an adapter can be connected with the desired liquid-tightness and connection strength with respect to the patient side connector and container side connector based on ISO80369-3.

以下に、本発明を好適な実施形態を示しながら詳細に説明する。但し、本発明は以下の実施形態に限定されないことはいうまでもない。以下の説明において参照する各図は、説明の便宜上、本発明の実施形態を構成する主要部材を簡略化して示したものである。従って、本発明は以下の各図に示されていない任意の部材を備え得る。また、本発明の範囲内において、以下の各図に示された各部材を変更または省略し得る。   Below, this invention is demonstrated in detail, showing suitable embodiment. However, it goes without saying that the present invention is not limited to the following embodiments. Each drawing referred to in the following description shows simplified main members constituting an embodiment of the present invention for convenience of description. Therefore, the present invention can include any member not shown in the following drawings. Further, within the scope of the present invention, each member shown in the following drawings can be changed or omitted.

(実施形態1)
図1Aは、本発明の実施形態1にかかるアダプタ1のメスコネクタ110側から見た斜視図、図1Bは、アダプタ1のオスコネクタ120側から見た斜視図である。図2は、アダプタ1の断面図である。これらの図に示されているように、アダプタ1は、一端にメスコネクタ110を備え、他端にオスコネクタ120を備える。連結筒130がメスコネクタ110とオスコネクタ120とを連結している。
(Embodiment 1)
1A is a perspective view seen from the female connector 110 side of the adapter 1 according to the first embodiment of the present invention, and FIG. 1B is a perspective view seen from the male connector 120 side of the adapter 1. FIG. 2 is a cross-sectional view of the adapter 1. As shown in these drawings, the adapter 1 includes a female connector 110 at one end and a male connector 120 at the other end. A connecting cylinder 130 connects the female connector 110 and the male connector 120.

メスコネクタ110は、中空円筒形状の管状部(メス部材)111を備える。管状部111の内周面112は、先端に近づくにしたがって内径が大きくなるテーパ面(いわゆるメステーパ面)である。管状部111の外周面には螺状突起(雄ネジ)115が設けられている。メスコネクタ110は、好ましくはISO80369−3に準拠し、図13A及び図13Bに示したメスコネクタ910と互換性を有している。   The female connector 110 includes a hollow cylindrical tubular portion (female member) 111. The inner peripheral surface 112 of the tubular portion 111 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip. A screw-shaped projection (male thread) 115 is provided on the outer peripheral surface of the tubular portion 111. The female connector 110 preferably conforms to ISO80369-3 and is compatible with the female connector 910 shown in FIGS. 13A and 13B.

オスコネクタ120は、筒形状のオス部材121と、略円筒形状の外筒123とを備える。外筒123は、オス部材121と同軸に、オス部材121を取り囲むように設けられている。オス部材121と外筒123とは、オス部材121の基端部から半径方向に沿ってフランジ状に突出した底板124を介して連結されている。オス部材121の外周面122は、先端に近づくにしたがって外径が小さくなるテーパ面(いわゆるオステーパ面)である。オス部材121には、その長手方向に沿ってオス部材121を貫通する流路127が設けられている。外筒123のオス部材121に対向する内周面には雌ネジ125が設けられている。オスコネクタ120は、好ましくはISO80369−3に準拠し、図14A及び図14Bに示したオスコネクタ920と互換性を有している。   The male connector 120 includes a cylindrical male member 121 and a substantially cylindrical outer cylinder 123. The outer cylinder 123 is provided coaxially with the male member 121 so as to surround the male member 121. The male member 121 and the outer cylinder 123 are connected via a bottom plate 124 that protrudes in a flange shape along the radial direction from the base end portion of the male member 121. The outer peripheral surface 122 of the male member 121 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip. The male member 121 is provided with a flow path 127 that penetrates the male member 121 along the longitudinal direction thereof. A female screw 125 is provided on the inner peripheral surface of the outer cylinder 123 facing the male member 121. The male connector 120 preferably conforms to ISO 80369-3 and is compatible with the male connector 920 shown in FIGS. 14A and 14B.

メスコネクタ110及びオスコネクタ120は、連結筒130を介して同軸に配置されている。連結筒130は、流路131が設けられた、中空の筒形状を有する。流路131を介して、管状部111とオス部材121の流路127とが連通されている。2本のリブ133が、連結筒130の外周面から半径方向に沿って外向きに突出している。リブ133は、メスコネクタ110とオスコネクタ120との間の領域に、連結筒130の長手方向に沿って延びている。リブ133は、アダプタ1に回転力を加えやすくするために設けられている。但し、連結筒130の外周面の形状はこれに限定されない。例えば、リブ133に代えて、連結筒130の外周面に、多角柱面(正四角柱面、正六角柱面等)等の任意の形状を設けてもよい。リブ133を省略してもよい。   The female connector 110 and the male connector 120 are arranged coaxially via the connecting cylinder 130. The connecting cylinder 130 has a hollow cylindrical shape provided with a flow path 131. The tubular portion 111 and the flow path 127 of the male member 121 are communicated with each other through the flow path 131. Two ribs 133 protrude outward from the outer peripheral surface of the connecting cylinder 130 along the radial direction. The rib 133 extends in the region between the female connector 110 and the male connector 120 along the longitudinal direction of the connecting cylinder 130. The rib 133 is provided to make it easier to apply a rotational force to the adapter 1. However, the shape of the outer peripheral surface of the connecting cylinder 130 is not limited to this. For example, instead of the rib 133, an arbitrary shape such as a polygonal column surface (a regular quadrangular column surface, a regular hexagonal column surface, or the like) may be provided on the outer peripheral surface of the connecting cylinder 130. The rib 133 may be omitted.

アダプタ1は、硬質材料からなることが好ましく、制限はないが、例えばアクリロニトリル−ブタジエン−スチレン共重合体(ABS)、ポリカーボネート、ポリプロピレン、ポリアセタール、ポリアミド、硬質ポリ塩化ビニル、ポリエチレン、スチレンエチレン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ブチレンスチレンブロック共重合体等の樹脂材料を用いることができる。アダプタ1は、上記の樹脂材料を射出成形することによりその全体が一部品として一体的に製造されうる。   The adapter 1 is preferably made of a hard material, and there is no limitation. For example, acrylonitrile-butadiene-styrene copolymer (ABS), polycarbonate, polypropylene, polyacetal, polyamide, hard polyvinyl chloride, polyethylene, styrene ethylene, polyethylene terephthalate Resin materials such as polybutylene terephthalate and butylene styrene block copolymer can be used. The adapter 1 can be integrally manufactured as a single part by injection molding the above resin material.

アダプタ1の使用方法を説明する。   A method for using the adapter 1 will be described.

アダプタ1は、経腸栄養法を行う場合に、図3A及び図3Bに示すように、患者側コネクタ(オスコネクタ)700と容器側コネクタ(メスコネクタ)800との間に介在させて、これらを接続するために使用される。患者側コネクタ700は図14A及び図14Bに示したオスコネクタ(患者側コネクタ)920に対応し、容器側コネクタ800は図13A及び図13Bに示したメスコネクタ(容器側コネクタ)910に対応し、これらはいずれもISO80369−3に準拠している。図3A及び図3Bにおいて、図13A、図13B、図14A、及び図14Bに示した構成要素と同じ構成要素には同じ符号が付してあり、それらについての説明を省略する。   When performing enteral nutrition, the adapter 1 is interposed between a patient side connector (male connector) 700 and a container side connector (female connector) 800 as shown in FIGS. 3A and 3B. Used to connect. The patient-side connector 700 corresponds to the male connector (patient-side connector) 920 shown in FIGS. 14A and 14B, the container-side connector 800 corresponds to the female connector (container-side connector) 910 shown in FIGS. 13A and 13B, All of these are compliant with ISO80369-3. 3A and 3B, the same components as those shown in FIGS. 13A, 13B, 14A, and 14B are denoted by the same reference numerals, and description thereof is omitted.

患者側コネクタ700は、オス部材921とは反対側端に接続部702を備える。図3Bに示されているように、接続部702は、オス部材921の流路927と連通し、その内周面はオス部材921と同軸の円筒面である。図示を省略するが、接続部702内に、柔軟性を有するチューブが挿入され固定される。チューブは、患者に留置されたカテーテル(経鼻カテーテル、PEGカテーテルなど)であってもよい。あるいは、チューブは、当該カテーテルに接続されたチューブであってもよい。作業者が患者側コネクタ700を保持しやすいように、一対のグリップ部705が接続部702を挟んでいる(図3A参照)。患者側コネクタ700は例示に過ぎず、特にISO80369−3で規定されていない部分の形状は任意に変更しうる。例えばグリップ部705の形状を変更してもよく、あるいは、グリップ部705を省略してもよい。チューブが接続部702内に挿入されるのではなく、接続部702がチューブ内に挿入することができるように構成されていてもよい。   The patient-side connector 700 includes a connection portion 702 at the end opposite to the male member 921. As shown in FIG. 3B, the connecting portion 702 communicates with the flow path 927 of the male member 921, and the inner peripheral surface thereof is a cylindrical surface coaxial with the male member 921. Although illustration is omitted, a flexible tube is inserted and fixed in the connection portion 702. The tube may be a catheter (nasal catheter, PEG catheter, etc.) placed in the patient. Alternatively, the tube may be a tube connected to the catheter. A pair of grip portions 705 sandwich the connection portion 702 so that the operator can easily hold the patient-side connector 700 (see FIG. 3A). The patient-side connector 700 is merely an example, and in particular, the shape of a part not defined by ISO 80369-3 can be arbitrarily changed. For example, the shape of the grip portion 705 may be changed, or the grip portion 705 may be omitted. Instead of the tube being inserted into the connecting portion 702, the connecting portion 702 may be configured to be inserted into the tube.

本実施形態では、容器側コネクタ800は、シリンジ(注入器)の外筒809の先端に、筒先(ノズル)として設けられている。しかしながら、本発明はこれに限定されず、容器側コネクタ800は任意の部材に設けられうる。例えば、容器側コネクタは、柔軟なチューブの末端に設けられていてもよい。管状部911より小さな内径を有する径小部913に対して管状部911とは反対側(図3Bにおいて上側)の構成は、任意に変更しうる。   In the present embodiment, the container-side connector 800 is provided as a cylinder tip (nozzle) at the tip of an outer cylinder 809 of a syringe (injector). However, the present invention is not limited to this, and the container-side connector 800 can be provided on any member. For example, the container side connector may be provided at the end of the flexible tube. The configuration on the side opposite to the tubular portion 911 (upper side in FIG. 3B) with respect to the small-diameter portion 913 having an inner diameter smaller than that of the tubular portion 911 can be arbitrarily changed.

最初に、図4A及び図4Bに示すように、患者側コネクタ700にアダプタ1のメスコネクタ110を接続する。管状部111にオス部材921が挿入され、且つ、螺状突起115と雌ネジ925とが螺合している。管状部111の内周面112とオス部材921の外周面922とは、径及びテーパ角度が一致するテーパ面であるから、両者は、液密なシールを形成して面接触をする。患者側コネクタ700及びメスコネクタ110は、いずれもISO80369−3に準拠しているから、患者側コネクタ700とメスコネクタ110とは、オスコネクタ920とメスコネクタ910とを接続した場合(図15参照)と同様の液密性及び接続強度で接続される。   First, as shown in FIGS. 4A and 4B, the female connector 110 of the adapter 1 is connected to the patient-side connector 700. The male member 921 is inserted into the tubular portion 111, and the screw-shaped protrusion 115 and the female screw 925 are screwed together. Since the inner peripheral surface 112 of the tubular portion 111 and the outer peripheral surface 922 of the male member 921 are tapered surfaces having the same diameter and taper angle, they form a liquid-tight seal and come into surface contact. Since both the patient-side connector 700 and the female connector 110 conform to ISO80369-3, the patient-side connector 700 and the female connector 110 are connected to the male connector 920 and the female connector 910 (see FIG. 15). Are connected with the same liquid tightness and connection strength.

次に、図5A及び図5Bに示すように、容器側コネクタ800をアダプタ1のオスコネクタ120に接続する。管状部911にオス部材121が挿入され、且つ、螺状突起915と雌ネジ125とが螺合している。管状部911の内周面912とオス部材121の外周面122とは、径及びテーパ角度が一致するテーパ面であるから、両者は、液密なシールを形成して面接触をする。容器側コネクタ800及びオスコネクタ120は、いずれもISO80369−3に準拠しているから、容器側コネクタ800とオスコネクタ120とは、オスコネクタ920とメスコネクタ910とを接続した場合(図15参照)と同様の液密性及び接続強度で接続される。かくして、容器側コネクタ800と患者側コネクタ700とがアダプタ1を介して連通する。   Next, as shown in FIGS. 5A and 5B, the container side connector 800 is connected to the male connector 120 of the adapter 1. The male member 121 is inserted into the tubular portion 911, and the screw projection 915 and the female screw 125 are screwed together. Since the inner peripheral surface 912 of the tubular portion 911 and the outer peripheral surface 122 of the male member 121 are tapered surfaces having the same diameter and taper angle, they form a liquid-tight seal and come into surface contact. Since both the container-side connector 800 and the male connector 120 conform to ISO 80369-3, the container-side connector 800 and the male connector 120 connect the male connector 920 and the female connector 910 (see FIG. 15). Are connected with the same liquid tightness and connection strength. Thus, the container side connector 800 and the patient side connector 700 communicate with each other via the adapter 1.

この状態で、液状物を、容器側コネクタ800、アダプタ1、患者側コネクタ700を順に介して患者に投与する。   In this state, the liquid substance is administered to the patient via the container side connector 800, the adapter 1, and the patient side connector 700 in this order.

その後、患者側コネクタ700とアダプタ1とを分離し、また、容器側コネクタ800とアダプタ1とを分離する。使用済みのアダプタ1は、好ましくは廃棄される。あるいは、アダプタ1を洗浄(例えば水洗い)して再使用してもよい。   Thereafter, the patient-side connector 700 and the adapter 1 are separated, and the container-side connector 800 and the adapter 1 are separated. The used adapter 1 is preferably discarded. Alternatively, the adapter 1 may be washed (for example, washed with water) and reused.

上述したように、経腸栄養法を行う場合、患者の体内へ注入される空気量を可能な限り少なくするために、容器側コネクタ800とオスコネクタ120とを接続する直前(図4A及び図4B参照)に、容器側コネクタ800の管状部911の先端まで液状物を導入することがある。この状態で容器側コネクタ800とオスコネクタ120とを接続する(図5A及び図5B参照)と、管状部911にオス部材121が挿入されることによって管状部911内の液状物が、オス部材121と外筒123との間の隙間126内にあふれ出ることがある。しかしながら、隙間126内に液状物があふれ出たアダプタ1は、経腸栄養法を行った後、廃棄して新しいアダプタ1と交換することができ、または、アダプタ1を単独で洗浄することで取り除くことができる。容器側コネクタ800の管状部911の外周面に付着した液状物も洗浄又は拭き取りにより容易に取り除くことができる。   As described above, when performing enteral nutrition, in order to reduce the amount of air injected into the patient's body as much as possible, immediately before the container side connector 800 and the male connector 120 are connected (FIGS. 4A and 4B). For example, the liquid material may be introduced to the tip of the tubular portion 911 of the container-side connector 800. When the container side connector 800 and the male connector 120 are connected in this state (see FIGS. 5A and 5B), the male member 121 is inserted into the tubular portion 911, whereby the liquid material in the tubular portion 911 is changed to the male member 121. May overflow into the gap 126 between the outer cylinder 123 and the outer cylinder 123. However, the adapter 1 overflowing in the gap 126 can be discarded and replaced with a new adapter 1 after the enteral nutrition method, or removed by washing the adapter 1 alone. be able to. The liquid material adhering to the outer peripheral surface of the tubular portion 911 of the container side connector 800 can be easily removed by washing or wiping.

経腸栄養法を行うことにより、液状物は、アダプタ1の流路131及び患者側コネクタ700のオス部材921の流路927を流れるが、メスコネクタ110と患者側コネクタ700とはISO80369−3に準じて接続されているので、液状物が患者側コネクタ700のオス部材921と外筒923との間の隙間926内に漏れ出ることはない。   By performing enteral nutrition, the liquid material flows through the flow channel 131 of the adapter 1 and the flow channel 927 of the male member 921 of the patient-side connector 700, but the female connector 110 and the patient-side connector 700 conform to ISO 80369-3. Since the connection is made in conformity, the liquid material does not leak into the gap 926 between the male member 921 of the patient-side connector 700 and the outer cylinder 923.

このように、最初に患者側コネクタ700にアダプタ1を接続し、次いで、アダプタ1に容器側コネクタ800に接続し、その後液状物を流して経腸栄養法を行うことにより、患者側コネクタ700の隙間926内に液状物が付着するのを防止することができる。従って、患者側コネクタ700が長期間にわたって患者に留置されたとしても患者側コネクタ700が不衛生状態に至るのを防止できる。   In this way, the adapter 1 is first connected to the patient-side connector 700, and then the adapter 1 is connected to the container-side connector 800, and then the enteral nutrition method is performed by flowing a liquid material. A liquid substance can be prevented from adhering in the gap 926. Therefore, even if the patient-side connector 700 is left in the patient for a long period of time, the patient-side connector 700 can be prevented from reaching an unsanitary state.

(実施形態2)
図6Aは、本発明の実施形態2に係るアダプタ2のメスコネクタ110側から見た斜視図、図6Bはアダプタ2の断面図である。以下の説明において引用する図面において、実施形態1で引用した図面に示された部材に対応する部材には、実施形態1の図面と同じ符号が付してある。そのような部材については、本実施形態では重複する説明が省略されており、実施形態1の説明を適宜参酌すべきである。以下、本実施形態2を、実施形態1との相違点を中心に説明する。
(Embodiment 2)
6A is a perspective view of the adapter 2 according to Embodiment 2 of the present invention as viewed from the female connector 110 side, and FIG. 6B is a cross-sectional view of the adapter 2. In the drawings cited in the following description, members corresponding to the members shown in the drawings cited in the first embodiment are denoted by the same reference numerals as those in the drawings of the first embodiment. About such a member, the overlapping description is abbreviate | omitted in this embodiment, and the description of Embodiment 1 should be taken into consideration suitably. Hereinafter, the second embodiment will be described with a focus on differences from the first embodiment.

本実施形態2のアダプタ2は、オスコネクタ120の底板124に2つの孔129が設けられている点で、実施形態1のアダプタ1と異なる。孔129は、底板124を貫通している。孔129を介してオス部材121と外筒123との間の隙間126と外界とが連通している。   The adapter 2 according to the second embodiment is different from the adapter 1 according to the first embodiment in that two holes 129 are provided in the bottom plate 124 of the male connector 120. The hole 129 passes through the bottom plate 124. A gap 126 between the male member 121 and the outer cylinder 123 communicates with the outside through the hole 129.

本実施形態2のアダプタ2の使用方法は実施形態1のアダプタ1と同じである。アダプタ2の孔129は、経腸栄養法を行った後、アダプタ2を単独で洗浄するのに有利である。即ち、洗浄液(例えば水)を、孔129を通して隙間126と外界との間を出入りさせることができる。このため、隙間126(例えば雌ネジ125の谷や底板124の内面など)に残留した液状物を容易に洗い落とすことができる。使用後のアダプタ2を清浄にすることができるので、アダプタ2の洗浄不良によりアダプタ2(特に隙間126)内で菌が繁殖する等の問題が生じにくい。   The method of using the adapter 2 of the second embodiment is the same as that of the adapter 1 of the first embodiment. The hole 129 of the adapter 2 is advantageous for cleaning the adapter 2 alone after performing enteral nutrition. That is, the cleaning liquid (for example, water) can enter and exit between the gap 126 and the outside through the hole 129. For this reason, the liquid substance remaining in the gap 126 (for example, the valley of the female screw 125 or the inner surface of the bottom plate 124) can be easily washed off. Since the adapter 2 after use can be cleaned, problems such as bacterial growth in the adapter 2 (particularly the gap 126) due to poor cleaning of the adapter 2 are unlikely to occur.

上記の例では、底板124に2つの孔129が設けられていたが、本発明はこれに限定されない。孔129の数は、1つでもあってもよく、あるいは3つ以上であってもよい。孔129は、隙間126と外界とを連通させることができれば、その位置は任意である。例えば、孔129を、底板124に代えて、またはこれに加えて、外筒123(例えば雌ネジ125の谷)に設けてもよい。孔129の形状や寸法は、限定はなく、任意に設定しうる。   In the above example, the two holes 129 are provided in the bottom plate 124, but the present invention is not limited to this. The number of holes 129 may be one, or may be three or more. The position of the hole 129 is arbitrary as long as the gap 126 can communicate with the outside world. For example, the hole 129 may be provided in the outer cylinder 123 (for example, the valley of the female screw 125) instead of or in addition to the bottom plate 124. The shape and dimensions of the hole 129 are not limited and can be arbitrarily set.

本実施形態2は、上記を除いて実施形態1と同じである。実施形態1の説明が本実施形態2に適宜適用されうる。   The second embodiment is the same as the first embodiment except for the above. The description of the first embodiment can be appropriately applied to the second embodiment.

(実施形態3)
図7Aは、本発明の実施形態3に係るアダプタ3のメスコネクタ110側から見た斜視図、図7Bはアダプタ3の断面図である。図8は、アダプタ3の分解斜視図である。以下の説明において引用する図面において、実施形態1で引用した図面に示された部材に対応する部材には、実施形態1の図面と同じ符号が付してある。そのような部材については、本実施形態では重複する説明が省略されており、実施形態1の説明を適宜参酌すべきである。以下、本実施形態3を、実施形態1との相違点を中心に説明する。
(Embodiment 3)
7A is a perspective view of the adapter 3 according to Embodiment 3 of the present invention as viewed from the female connector 110 side, and FIG. 7B is a cross-sectional view of the adapter 3. FIG. 8 is an exploded perspective view of the adapter 3. In the drawings cited in the following description, members corresponding to the members shown in the drawings cited in the first embodiment are denoted by the same reference numerals as those in the drawings of the first embodiment. About such a member, the overlapping description is abbreviate | omitted in this embodiment, and the description of Embodiment 1 should be taken into consideration suitably. Hereinafter, the third embodiment will be described focusing on differences from the first embodiment.

本実施形態3のアダプタ3は、雌ネジ125が設けられた外筒123を含む外筒部品320と、アダプタ3のこれ以外の部分(アダプタ本体)310との2部品で構成される点で、全体が一部品で構成された実施形態1のアダプタ1及び実施形態2のアダプタ2と異なる。アダプタ本体310及び外筒部品320のそれぞれは、実施形態1で説明した硬質の樹脂材料を用いて射出成形することにより全体が一部品として一体的に製造された一体成形品であることが好ましい。   The adapter 3 of the third embodiment is composed of two parts, an outer cylinder part 320 including an outer cylinder 123 provided with a female screw 125, and another part (adapter body) 310 of the adapter 3, This is different from the adapter 1 of the first embodiment and the adapter 2 of the second embodiment, all of which are composed of one part. Each of the adapter main body 310 and the outer cylindrical part 320 is preferably an integrally molded product that is integrally manufactured as a single part by injection molding using the hard resin material described in the first embodiment.

外筒部品320はアダプタ本体310から、実施形態1のアダプタ1の底板124(図2参照)に相当する位置で分離可能である。図7B及び図8に示されているように、オス部材121の基端部分の外周面に雄ネジ311が設けられ、外筒部品320の下端(メスコネクタ110側端)の内周面に雌ネジ321が設けられている。雄ネジ311に雌ネジ321を螺合及び螺脱することにより、アダプタ本体310に対して外筒部品320を繰り返し装着及び分離することができる。   The outer cylinder part 320 can be separated from the adapter main body 310 at a position corresponding to the bottom plate 124 (see FIG. 2) of the adapter 1 of the first embodiment. As shown in FIGS. 7B and 8, a male screw 311 is provided on the outer peripheral surface of the base end portion of the male member 121, and a female is provided on the inner peripheral surface of the lower end of the outer cylinder part 320 (the female connector 110 side end). A screw 321 is provided. By screwing and unscrewing the female screw 321 to the male screw 311, the outer cylinder part 320 can be repeatedly attached to and detached from the adapter main body 310.

本実施形態3のアダプタ3の使用方法は実施形態1のアダプタ1と同じである。アダプタ本体310に外筒部品320を装着した状態(図7A及び図7B参照)で、アダプタ3は患者側コネクタ700及び容器側コネクタ800に対して接続され且つ分離される。外筒部品320がオス部材121を含むアダプタ本体310から分離可能であることは、経腸栄養法を行った後、アダプタ3を洗浄するのに有利である。即ち、アダプタ3は、アダプタ本体310と外筒部品320とに分離した状態でそれぞれ洗浄することができる。外筒部品320を取り除くことによりオス部材121の外周面122は露出されるので、外周面122を指やスポンジ、ブラシなどで直接触れて洗うことができる。また、オス部材121が抜き取られた外筒部品320は、全体として両端が開口した中空の筒形状を有するので、その内周面に細いブラシを挿入する等して外筒123に設けられた雌ネジ125を洗浄することができる。このため、本実施形態3では、オスコネクタ120の隙間126に残留した液状物の洗浄性が格段に向上する。使用後のアダプタ3を清浄にすることができるので、アダプタ3の洗浄不良によりアダプタ3(特に隙間126)内で菌が繁殖する等の問題が生じにくい。   The method of using the adapter 3 of the third embodiment is the same as that of the adapter 1 of the first embodiment. The adapter 3 is connected to and separated from the patient-side connector 700 and the container-side connector 800 in a state where the outer cylinder part 320 is attached to the adapter main body 310 (see FIGS. 7A and 7B). The fact that the outer cylinder part 320 is separable from the adapter main body 310 including the male member 121 is advantageous for cleaning the adapter 3 after performing enteral nutrition. That is, the adapter 3 can be cleaned while being separated into the adapter main body 310 and the outer cylinder part 320. Since the outer peripheral surface 122 of the male member 121 is exposed by removing the outer cylindrical part 320, the outer peripheral surface 122 can be directly touched and washed with a finger, a sponge, a brush, or the like. Further, since the outer cylinder part 320 from which the male member 121 has been extracted has a hollow cylindrical shape with both ends opened as a whole, the female cylinder provided in the outer cylinder 123 by inserting a thin brush on the inner peripheral surface thereof. The screw 125 can be cleaned. For this reason, in this Embodiment 3, the washing | cleaning property of the liquid substance which remained in the clearance gap 126 of the male connector 120 improves markedly. Since the adapter 3 after use can be cleaned, problems such as bacterial growth in the adapter 3 (particularly the gap 126) due to poor cleaning of the adapter 3 are unlikely to occur.

アダプタ本体310から外筒部品320が分離される位置は、上記の例に限定されない。例えば外筒123の任意の位置(例えば外筒123の下側(メスコネクタ110側)の位置)で分離可能に構成されていてもよい。外筒部品320をアダプタ本体310に着脱可能に装着する機構は、上述した雄ネジ311と雌ネジ321との螺合構造に限定されない。例えば、互いに嵌合し合う凸部及び凹部からなる嵌合構造をアダプタ本体310及び外筒部品320に設けてもよい。凸部及び凹部は、アダプタ3の長手方向に沿って延びていてもよく、または、アダプタ3の周方向に沿って延びていてもよい。あるいは、螺合構造と嵌合構造とを組み合わせてもよい。アダプタ本体310と外筒部品320との境界に、Oリングなどのシール材が設けられていてもよい。   The position where the outer cylinder part 320 is separated from the adapter main body 310 is not limited to the above example. For example, it may be configured to be separable at an arbitrary position of the outer cylinder 123 (for example, a position on the lower side of the outer cylinder 123 (female connector 110 side)). The mechanism for detachably attaching the outer cylinder part 320 to the adapter main body 310 is not limited to the above-described screwed structure of the male screw 311 and the female screw 321. For example, a fitting structure composed of a convex part and a concave part that fit together may be provided in the adapter main body 310 and the outer cylinder part 320. The convex portion and the concave portion may extend along the longitudinal direction of the adapter 3, or may extend along the circumferential direction of the adapter 3. Or you may combine a screwing structure and a fitting structure. A sealing material such as an O-ring may be provided at the boundary between the adapter main body 310 and the outer cylinder part 320.

本実施形態3のアダプタ3に、実施形態2で説明した孔129を設けてもよい。孔129は、例えば外筒部品320の外筒123(例えば雌ネジ125の谷)に設けることができる。これにより、外筒部品320の洗浄性が更に向上する。   The adapter 3 according to the third embodiment may be provided with the hole 129 described in the second embodiment. The hole 129 can be provided in, for example, the outer cylinder 123 of the outer cylinder part 320 (for example, the valley of the female screw 125). Thereby, the washability of the outer cylinder part 320 is further improved.

本実施形態3は、上記を除いて実施形態1と同じである。実施形態1の説明が本実施形態3に適宜適用されうる。   The third embodiment is the same as the first embodiment except for the above. The description of the first embodiment can be appropriately applied to the third embodiment.

(実施形態4)
図9は、本発明の実施形態4にかかるアダプタ4の断面図である。以下の説明において引用する図面において、実施形態1で引用した図面に示された部材に対応する部材には、実施形態1の図面と同じ符号が付してある。そのような部材については、本実施形態では重複する説明が省略されており、実施形態1の説明を適宜参酌すべきである。以下、本実施形態4を、実施形態1との相違点を中心に説明する。
(Embodiment 4)
FIG. 9 is a sectional view of the adapter 4 according to the fourth embodiment of the present invention. In the drawings cited in the following description, members corresponding to the members shown in the drawings cited in the first embodiment are denoted by the same reference numerals as those in the drawings of the first embodiment. About such a member, the overlapping description is abbreviate | omitted in this embodiment, and the description of Embodiment 1 should be taken into consideration suitably. Hereinafter, the fourth embodiment will be described focusing on differences from the first embodiment.

本実施形態4のアダプタ4は、メスコネクタ110に、中空円筒形状を有する筒状部17が設けられている点で実施形態1のアダプタ1と異なる。筒状部117は、連結筒130の流路131と連通するように、管状部111の基端部(管状部111連結筒130との境界部分)に設けられている。筒状部117は、管状部111に取り囲まれるように、管状部111と同軸に配置されている。筒状部117と管状部111とは、半径方向に離間している。筒状部117の外周面118には、先端に近づくにしたがって外径が小さくなるテーパ面(いわゆるオステーパ面)が設けられている。アダプタ4は、実施形態1で説明した硬質の樹脂材料を用いて射出成形することにより、筒状部117を含めて全体が一部品として一体的に製造されうる。   The adapter 4 of the fourth embodiment is different from the adapter 1 of the first embodiment in that the female connector 110 is provided with a cylindrical portion 17 having a hollow cylindrical shape. The cylindrical portion 117 is provided at the proximal end portion of the tubular portion 111 (boundary portion with the tubular portion 111 connecting cylinder 130) so as to communicate with the flow path 131 of the connecting cylinder 130. The tubular portion 117 is disposed coaxially with the tubular portion 111 so as to be surrounded by the tubular portion 111. The cylindrical part 117 and the tubular part 111 are spaced apart in the radial direction. The outer peripheral surface 118 of the cylindrical portion 117 is provided with a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip. The adapter 4 can be integrally manufactured as a single part including the cylindrical portion 117 by injection molding using the hard resin material described in the first embodiment.

本実施形態4のアダプタ4の使用方法は実施形態1のアダプタ1と同じである。図10は、患者側コネクタ700と容器側コネクタ800とをアダプタ4を介して接続した状態を示した断面図である。メスコネクタ110の筒状部117が、患者側コネクタ700のオス部材921に挿入されている。   The method of using the adapter 4 of the fourth embodiment is the same as that of the adapter 1 of the first embodiment. FIG. 10 is a cross-sectional view showing a state in which the patient-side connector 700 and the container-side connector 800 are connected via the adapter 4. The cylindrical portion 117 of the female connector 110 is inserted into the male member 921 of the patient side connector 700.

図11Aは、図10のメスコネクタ110と患者側コネクタ700との接続部分を示した拡大断面図である。上述したように、筒状部117の外周面118には先細のオステーパ面が設けられている。一方、オス部材921の流路927を規定する内周面928は円筒面である。筒状部117のオステーパ面の先端側での最小外径はオス部材921の内周面928の内径より小さく、且つ、オステーパ面の基端側での最大外径は内周面928の内径より大きい。従って、筒状部117のオステーパ面とオス部材921の内周面928の先端部分(即ち、流路927の先端側開口の端縁)とが嵌合し、両者間に液密なシール119が形成される。この結果、筒状部117とオス部材921とは液密に連通している。   FIG. 11A is an enlarged cross-sectional view showing a connection portion between female connector 110 and patient-side connector 700 in FIG. As described above, the outer peripheral surface 118 of the cylindrical portion 117 is provided with a tapered male taper surface. On the other hand, the inner peripheral surface 928 defining the flow path 927 of the male member 921 is a cylindrical surface. The minimum outer diameter on the distal end side of the male tapered surface of the cylindrical portion 117 is smaller than the inner diameter of the inner peripheral surface 928 of the male member 921, and the maximum outer diameter on the proximal end side of the male tapered surface is smaller than the inner diameter of the inner peripheral surface 928. large. Accordingly, the male taper surface of the cylindrical portion 117 and the tip end portion of the inner peripheral surface 928 of the male member 921 (that is, the edge of the opening on the tip end side of the flow path 927) are fitted, and a liquid-tight seal 119 is formed therebetween. It is formed. As a result, the cylindrical portion 117 and the male member 921 are in fluid-tight communication.

この状態で、液状物が、図10において、容器側コネクタ800、アダプタ1、患者側コネクタ700を順に介して患者に投与される。   In this state, the liquid substance is administered to the patient through the container-side connector 800, the adapter 1, and the patient-side connector 700 in this order in FIG.

本実施形態4のアダプタ4の作用を説明する。   The effect | action of the adapter 4 of this Embodiment 4 is demonstrated.

図11Bは、実施形態1において、アダプタ1を介して患者側コネクタ700と容器側コネクタ800とを接続した状態(図5A及び図5B参照)において、アダプタ1のメスコネクタ110と患者側コネクタ700との接続部分を示した拡大断面図である。患者に液状物を投与すると、アダプタ1の流路131からオス部材921の流路927に至る空間(図11Aにおいて多数のドットを付した部分)は液状物で満たされる。   FIG. 11B shows the female connector 110 and the patient-side connector 700 of the adapter 1 in the state in which the patient-side connector 700 and the container-side connector 800 are connected via the adapter 1 in the first embodiment (see FIGS. 5A and 5B). It is the expanded sectional view which showed these connection parts. When a liquid substance is administered to a patient, a space (a portion with a large number of dots in FIG. 11A) from the flow path 131 of the adapter 1 to the flow path 927 of the male member 921 is filled with the liquid substance.

その後、アダプタ1と患者側コネクタ700とは分離される。上記空間内の液状物の一部は、アダプタ1を分離後に、患者側コネクタ700のオス部材921の先端外周面922aに付着し残留することがある。オス部材921の先端外周面922aに付着した液状物は、オス部材921と外筒923との間の隙間926(図3A、図3B参照)内に流れ込むことがある。   Thereafter, the adapter 1 and the patient-side connector 700 are separated. A part of the liquid in the space may remain attached to the outer peripheral surface 922a of the male member 921 of the patient-side connector 700 after the adapter 1 is separated. The liquid substance adhering to the outer peripheral surface 922a of the male member 921 may flow into a gap 926 (see FIGS. 3A and 3B) between the male member 921 and the outer cylinder 923.

これに対して本実施形態4では、図11Aに示されているように、筒状部117とオス部材921との間に液密なシール119が形成されているので、管状部111と筒状部117とオス部材921とで囲まれた空間401に液状物が流れ込むことはない。このため、アダプタ4を分離後に、オス部材921の先端外周面922aに液状物は付着しない。従って、液状物がオス部材921と外筒923との間の隙間926内に流れ込むことはない。   On the other hand, in the fourth embodiment, as shown in FIG. 11A, since the liquid-tight seal 119 is formed between the tubular portion 117 and the male member 921, the tubular portion 111 and the tubular shape are formed. The liquid material does not flow into the space 401 surrounded by the portion 117 and the male member 921. For this reason, a liquid substance does not adhere to the front-end | tip outer peripheral surface 922a of the male member 921 after isolate | separating the adapter 4. FIG. Therefore, the liquid material does not flow into the gap 926 between the male member 921 and the outer cylinder 923.

このように、本実施形態4のアダプタ4は、経腸栄養法を行い、次いでアダプタ4と患者側コネクタ700とを分離した後に、患者側コネクタ700の隙間926内に液状物が流れ込むのを防止できる。上述したように隙間926内の液状物を拭き取り除去することは困難であり、隙間926内の液状物を放置すると、隙間926内で菌が繁殖する等、患者側コネクタ700が不衛生状態に至る可能性がある。本実施形態4のアダプタ4は、これを回避することができ、患者側コネクタ700が不衛生状態に至る可能性を更に低減することができる。   As described above, the adapter 4 according to the fourth embodiment prevents the liquid material from flowing into the gap 926 of the patient-side connector 700 after performing the enteral nutrition method and then separating the adapter 4 and the patient-side connector 700. it can. As described above, it is difficult to wipe off and remove the liquid substance in the gap 926. If the liquid substance in the gap 926 is left as it is, the patient-side connector 700 becomes unsanitary, for example, bacteria propagate in the gap 926. there is a possibility. The adapter 4 of the fourth embodiment can avoid this, and can further reduce the possibility that the patient-side connector 700 will be unsanitary.

上記の例では、アダプタ4の全体が同一材料(例えば硬質材料)で構成されていたが、本発明はこれに限定されない。例えば、筒状部117を軟質材料で構成してもよい。軟質材料としては、制限はないが、天然ゴム、イソプレンゴム、シリコーンゴム等のゴムや、スチレン系エラストマー、オレフィン系エラストマー、ポリウレタン系エラストマー等の熱可塑性エラストマー等のゴム弾性を有する材料(エラストマーとも呼ばれる)を用いうる。アダプタ4の筒状部117以外の部分(以下「本体部」という)は、上述した硬質材料で構成しうる。材料が異なる筒状部117と本体部とを組み合わせる方法は、制限はないが、筒状部117と本体部とを二色成形により一体化させる方法(二色成形法)、筒状部117と本体部とを別々に製造した後、両者を液密に接続する方法(接続法)、などを用いうる。接続法において別々に製造した筒状部117と本体部とを接続する方法は、例えば接着剤を用いる方法、融着する方法など、任意の方法を用いうる。筒状部117が軟質材料からなることは、筒状部117の寸法精度の緩和や、シール119の液密性の向上に有利である。   In the above example, the entire adapter 4 is made of the same material (for example, hard material), but the present invention is not limited to this. For example, the cylindrical portion 117 may be made of a soft material. The soft material is not limited, but a material having rubber elasticity (also called an elastomer) such as rubber such as natural rubber, isoprene rubber and silicone rubber, and thermoplastic elastomer such as styrene elastomer, olefin elastomer and polyurethane elastomer. ) Can be used. Portions other than the cylindrical portion 117 (hereinafter referred to as “main body portion”) of the adapter 4 can be made of the hard material described above. The method of combining the cylindrical portion 117 and the main body portion, which are made of different materials, is not limited, but the method of integrating the cylindrical portion 117 and the main body portion by two-color molding (two-color molding method), the cylindrical portion 117, After manufacturing the main body separately, a method (connection method) of connecting the two in a liquid-tight manner can be used. As a method of connecting the cylindrical portion 117 and the main body portion separately manufactured in the connection method, any method such as a method using an adhesive or a method of fusing can be used. The cylindrical portion 117 made of a soft material is advantageous for relaxing the dimensional accuracy of the cylindrical portion 117 and improving the liquid tightness of the seal 119.

筒状部117の外周面118がオステーパ面を有していることは、簡単な構成で、筒状部117の外周面118とオス部材921の内周面928との間で液密なシール119を容易に形成することができる点で有利である。但し、外周面118は、オステーパ面以外の形状を有していてもよい。例えば筒状部117の外周面118が、その長手方向において外径が一定である円筒面であってもよい。この場合、外周面118の精度を適切に管理すれば、筒状部117の外周面118とオス部材921の内周面928とを面接触させて、両者間に液密なシールを形成することが可能である。このシールの液密性を向上させるために、筒状部117を上記の軟質材料で構成することは有利である。   The fact that the outer peripheral surface 118 of the cylindrical part 117 has a male tapered surface is a simple configuration, and a liquid-tight seal 119 between the outer peripheral surface 118 of the cylindrical part 117 and the inner peripheral surface 928 of the male member 921. Is advantageous in that it can be easily formed. However, the outer peripheral surface 118 may have a shape other than the male tapered surface. For example, the outer peripheral surface 118 of the cylindrical portion 117 may be a cylindrical surface having a constant outer diameter in the longitudinal direction. In this case, if the accuracy of the outer peripheral surface 118 is appropriately managed, the outer peripheral surface 118 of the cylindrical portion 117 and the inner peripheral surface 928 of the male member 921 are brought into surface contact to form a liquid-tight seal therebetween. Is possible. In order to improve the liquid tightness of the seal, it is advantageous to form the cylindrical portion 117 with the soft material.

筒状部117とオス部材921との間の液密なシールは、上記以外の構成により形成されてもよい。   The liquid-tight seal between the cylindrical portion 117 and the male member 921 may be formed by a configuration other than the above.

例えば、筒状部117の外周面に環状突起を設けてもよい。環状突起は、筒状部117の周方向に連続し、管状部111に向かって突出する。環状突起は、例えば管状部117の外周面に装着したOリングで構成しうる。アダプタ4のメスコネクタ110と患者側コネクタ700とを接続すると、環状突起がオス部材921の内周面928に密着し、環状突起と内周面928との間に液密なシールを形成することができる。   For example, an annular protrusion may be provided on the outer peripheral surface of the cylindrical portion 117. The annular protrusion is continuous in the circumferential direction of the tubular portion 117 and protrudes toward the tubular portion 111. The annular protrusion can be constituted by an O-ring mounted on the outer peripheral surface of the tubular portion 117, for example. When the female connector 110 of the adapter 4 and the patient-side connector 700 are connected, the annular protrusion closely adheres to the inner peripheral surface 928 of the male member 921, and a liquid-tight seal is formed between the annular protrusion and the inner peripheral surface 928. Can do.

あるいは、筒状部117をオス部材921に挿入するのではなく、筒状部117をオス部材921に、オス部材921の長手方向に突き合わせてもよい。この場合、筒状部117の先端とオス部材921の先端との間に液密なシールが形成される。   Alternatively, instead of inserting the tubular portion 117 into the male member 921, the tubular portion 117 may be abutted against the male member 921 in the longitudinal direction of the male member 921. In this case, a liquid-tight seal is formed between the tip of the cylindrical portion 117 and the tip of the male member 921.

本実施形態4では、アダプタ4のメスコネクタ110と患者側コネクタ700とを接続したとき(即ち、螺状突起115と雌ネジ925とを螺合させたとき)、筒状部117とオス部材921との間に液密なシールが形成される。この液密なシールが形成されたとき、管状部111の内周面112とオス部材921の外周面922とは液密に嵌合してもよく、しなくてもよい。   In the fourth embodiment, when the female connector 110 of the adapter 4 and the patient-side connector 700 are connected (that is, when the screw projection 115 and the female screw 925 are screwed together), the cylindrical portion 117 and the male member 921 are connected. A liquid-tight seal is formed between the two. When this liquid-tight seal is formed, the inner peripheral surface 112 of the tubular portion 111 and the outer peripheral surface 922 of the male member 921 may or may not be liquid-tightly fitted.

本実施形態4は、上記を除いて実施形態1と同じである。実施形態1の説明が本実施形態4に適宜適用されうる。   The fourth embodiment is the same as the first embodiment except for the above. The description of the first embodiment can be appropriately applied to the fourth embodiment.

患者側コネクタ700のオス部材921との間で液密なシールを形成するように構成された本実施形態4の筒状部を、実施形態2のアダプタ2及び実施形態3のアダプタ3に設けることができる。   The cylindrical part of the fourth embodiment configured to form a liquid-tight seal with the male member 921 of the patient-side connector 700 is provided in the adapter 2 of the second embodiment and the adapter 3 of the third embodiment. Can do.

(実施形態5)
図12Aは、本発明の実施形態5にかかるアダプタ5のオスコネクタ120側から見た斜視図、図12Bはアダプタ5の断面斜視図である。以下の説明において引用する図面において、実施形態1で引用した図面に示された部材に対応する部材には、実施形態1の図面と同じ符号が付してある。そのような部材については、本実施形態では重複する説明が省略されており、実施形態1の説明を適宜参酌すべきである。以下、本実施形態5を、実施形態1との相違点を中心に説明する。
(Embodiment 5)
12A is a perspective view seen from the male connector 120 side of the adapter 5 according to Embodiment 5 of the present invention, and FIG. 12B is a cross-sectional perspective view of the adapter 5. In the drawings cited in the following description, members corresponding to the members shown in the drawings cited in the first embodiment are denoted by the same reference numerals as those in the drawings of the first embodiment. About such a member, the overlapping description is abbreviate | omitted in this embodiment, and the description of Embodiment 1 should be taken into consideration suitably. Hereinafter, the fifth embodiment will be described focusing on differences from the first embodiment.

本実施形態5のアダプタ5は、オス部材121の先端の開口にフィルタ150が設けられている。フィルタ150は、複数の微細な細孔が設けられたメッシュフィルタである。アダプタ5は、実施形態1で説明した硬質の樹脂材料を用いて射出成形することにより、フィルタ15を含めて全体が一部品として一体的に製造されうる。   In the adapter 5 of the fifth embodiment, a filter 150 is provided at the opening at the tip of the male member 121. The filter 150 is a mesh filter provided with a plurality of fine pores. The adapter 5 can be integrally manufactured as a single part including the filter 15 by injection molding using the hard resin material described in the first embodiment.

本実施形態5のアダプタ5の使用方法は実施形態1のアダプタ1と同じである。   The method of using the adapter 5 of the fifth embodiment is the same as that of the adapter 1 of the first embodiment.

フィルタ150の機能について説明する。   The function of the filter 150 will be described.

経腸栄養法において患者に投与される液状物は、粗大固形物を含むことがある。この場合、粗大固形物が、患者に留置されたカテーテルの流路を閉塞してしまうという事態が起こりうる。例えば、液状物が、粉末状の薬剤を溶解させた薬液である場合、薬剤の一部が溶解されずに粗大固形物を形成することがある。患者に留置されるカテーテル(特に経鼻カテーテル)の中には、内径が例えば0.6mm程度と非常に小径のものがある。カテーテルの流路の閉塞は、液状物中に含まれる粗大固形物が、カテーテルの流路の内径と同程度以上である場合に起こりやすい。   The liquid substance administered to a patient in enteral nutrition may contain a coarse solid substance. In this case, a situation may occur in which the coarse solid matter blocks the flow path of the catheter placed in the patient. For example, when the liquid substance is a chemical solution in which a powdery drug is dissolved, a part of the drug may not be dissolved and a coarse solid may be formed. Some catheters (particularly nasal catheters) placed in a patient have a very small inner diameter of about 0.6 mm, for example. Clogging of the catheter flow path is likely to occur when the coarse solids contained in the liquid are at least as large as the inner diameter of the catheter flow path.

本実施形態5のアダプタ5に設けられたフィルタ150は、液状物中の粗大固形物を捕捉して、アダプタ5より下流に粗大固形物が流れるのを防ぐ。従って、本実施形態5は、アダプタ5より下流側の流路(例えば、患者に留置されたカテーテル)が粗大固形物で閉塞するという事態の発生を防止するのに有利である。   The filter 150 provided in the adapter 5 of Embodiment 5 captures coarse solids in the liquid and prevents the coarse solids from flowing downstream from the adapter 5. Therefore, the fifth embodiment is advantageous in preventing the occurrence of a situation in which a flow path (for example, a catheter placed in a patient) on the downstream side of the adapter 5 is blocked with a coarse solid matter.

フィルタ150に設けられる細孔のそれぞれの大きさ(いわゆる目開き)は、制限はないが、アダプタ5より下流側の流路(特に患者に留置されたカテーテルの流路)の最小内径と同じかこれより小さいことが好ましい。例えば、フィルタ150の細孔の大きさは、アダプタ5より下流側の流路の最小内径の0.8倍以下、更には0.5倍以下に設定しうる。また、前記細孔の大きさは、0.6mm以下、更には0.3mm以下に設定しうる。   The size of each of the pores provided in the filter 150 (so-called opening) is not limited, but is it the same as the minimum inner diameter of the channel downstream of the adapter 5 (especially the channel of the catheter placed in the patient)? It is preferable to be smaller than this. For example, the size of the pores of the filter 150 can be set to 0.8 times or less, more preferably 0.5 times or less of the minimum inner diameter of the flow path downstream from the adapter 5. Further, the size of the pores can be set to 0.6 mm or less, and further to 0.3 mm or less.

上記の例では、フィルタ150は、アダプタ5のこれ以外の部分とともに同じ材料を用いて同時に一体的に成形されている。これは、フィルタ150を備えたアダプタ5の製造の容易化及び低コスト化に有利である。但し、フィルタ150を、アダプタ5のこれ以外の部分とは別の独立した部品として準備してもよい。例えば、フィルタ150として、樹脂や金属等からなる公知のメッシュフィルタを用いることができる。このメッシュフィルタをアダプタに固定し一体化させる方法は任意であり、例えば二色成形法、接着剤や融着により固定する方法等を用いうる。あるいは、フィルタ150が目詰まりした場合に新しいものに交換可能なように、フィルタ150がアダプタに対して着脱可能であってもよい。   In the above example, the filter 150 is integrally formed with the other parts of the adapter 5 at the same time using the same material. This is advantageous in facilitating the manufacture of the adapter 5 including the filter 150 and reducing the cost. However, the filter 150 may be prepared as an independent part different from the other parts of the adapter 5. For example, a known mesh filter made of resin or metal can be used as the filter 150. A method of fixing the mesh filter to the adapter and integrating it is arbitrary. For example, a two-color molding method, a method of fixing by an adhesive or fusion, and the like can be used. Alternatively, the filter 150 may be removable from the adapter so that if the filter 150 is clogged, it can be replaced with a new one.

上記の例では、フィルタ150はオス部材121の流路127の先端側(上流側)の開口に設けられていた。これは、粗大固形物がフィルタ150に捕捉された状態(目詰まり状態)を容易に視認するのに有利である。但し、フィルタ150が設けられる位置は、これに限定されず、オス部材121から管状部111までの液状物が流れる流路上の任意の位置にフィルタ150を設けることができる。   In the above example, the filter 150 is provided in the opening on the distal end side (upstream side) of the flow path 127 of the male member 121. This is advantageous for easily visually recognizing a state (clogged state) in which coarse solids are captured by the filter 150. However, the position where the filter 150 is provided is not limited to this, and the filter 150 can be provided at any position on the flow path through which the liquid material from the male member 121 to the tubular portion 111 flows.

上記の例では、メスコネクタ110とオスコネクタ120との間の連結筒130が、実施形態1に比べて短い。また、実施形態1のアダプタ1に設けられていたリブ133が、本実施形態5では省略されている。これらの相違は、本発明においては本質的ではない。アダプタ5に、実施形態1と同様の連結筒130を及びリブ133を設けてもよい。   In the above example, the connecting cylinder 130 between the female connector 110 and the male connector 120 is shorter than that in the first embodiment. Further, the rib 133 provided in the adapter 1 of the first embodiment is omitted in the fifth embodiment. These differences are not essential in the present invention. The adapter 5 may be provided with the connecting cylinder 130 and the rib 133 similar to those of the first embodiment.

本実施形態5は、上記を除いて実施形態1と同じである。実施形態1の説明が本実施形態5に適宜適用されうる。   The fifth embodiment is the same as the first embodiment except for the above. The description of the first embodiment can be appropriately applied to the fifth embodiment.

本実施形態5のフィルタを、実施形態1〜4のアダプタ1〜4のオス部材121と管状部111との間の流路上に設けることができる。   The filter of the fifth embodiment can be provided on the flow path between the male member 121 and the tubular portion 111 of the adapters 1 to 4 of the first to fourth embodiments.

上記のアダプタ1〜5では、連結筒130が硬質材料からなり、連結筒130とその両側のメスコネクタ110及びオスコネクタ120(実施形態3ではオス部材121)とが一部品として一体的に成形されていた。これと異なり、例えば連結筒130を柔軟なチューブで構成し、当該チューブの両端に別に製造したメスコネクタ110及びオスコネクタ120(実施形態3ではオス部材121)を接続して本発明のアダプタを構成することは可能である。但し、上記の実施形態1〜5の構成は、(1)メスコネクタ110からオスコネクタ120(実施形態3ではオス部材121)までが硬質材料で一体化されているので、患者側コネクタ700及び容器側コネクタ800に対するアダプタの着脱作業をアダプタの任意の箇所を把持して行うことができること、(2)アダプタを構成する部品数が少なくなるので、アダプタの製造が容易であること、等の点で有利である。   In the adapters 1 to 5, the connecting cylinder 130 is made of a hard material, and the connecting cylinder 130 and the female connector 110 and the male connector 120 (male member 121 in the third embodiment) on both sides thereof are integrally formed as one component. It was. Unlike this, for example, the connecting tube 130 is formed of a flexible tube, and the female connector 110 and the male connector 120 (male member 121 in the third embodiment) separately manufactured at both ends of the tube are connected to form the adapter of the present invention. It is possible to do. However, the configurations of the first to fifth embodiments described above are as follows: (1) From the female connector 110 to the male connector 120 (male member 121 in the third embodiment) is integrated with a hard material. The adapter can be attached to and detached from the side connector 800 by grasping an arbitrary part of the adapter, and (2) the number of parts constituting the adapter is reduced, so that the adapter can be easily manufactured. It is advantageous.

連結筒130を短くすることは、アダプタ内の流路の容積を小さくするのに有利である。従って、連結筒130を実質的に省略し、メスコネクタ110とオスコネクタ120とを直結してもよい。この場合も、メスコネクタ110の管状部111とオスコネクタ120のオス部材121とは連通される。   Shortening the connecting cylinder 130 is advantageous for reducing the volume of the flow path in the adapter. Therefore, the connecting cylinder 130 may be substantially omitted and the female connector 110 and the male connector 120 may be directly connected. Also in this case, the tubular portion 111 of the female connector 110 and the male member 121 of the male connector 120 are communicated.

本発明は、制限はないが、ISO80369−3に準拠したオスコネクタ及びメスコネクタを使用する分野において利用することができる。中でも、医療分野、更には経腸栄養法を行う分野において好ましく利用することができる。本発明のアダプタは、経腸栄養法を行うために患者の体内に挿入されたカテーテルの上流側端に取り付けられたオスコネクタに接続して利用することが特に好ましい。   Although this invention is not restrict | limited, This invention can be utilized in the field | area which uses the male connector and female connector based on ISO80369-3. Especially, it can utilize preferably in the medical field and also the field | area which performs enteral nutrition. The adapter of the present invention is particularly preferably used by being connected to a male connector attached to an upstream end of a catheter inserted into a patient's body for performing enteral nutrition.

1,2,3,4,5 アダプタ
110 メスコネクタ
111 管状部
115 螺状突起(雄ネジ)
117 筒状部
118 筒状部の外周面
119 液密なシール
120 オスコネクタ
121 オス部材
123 外筒
124 底板
125 雌ネジ
129 孔(貫通孔)
150 フィルタ
310 アダプタ本体
320 外筒部品
700 患者側コネクタ
921 患者側コネクタのオス部材
928 オス部材の内周面
1, 2, 3, 4, 5 Adapter 110 Female connector 111 Tubular portion 115 Screw projection (male thread)
117 Cylindrical part 118 Outer peripheral surface 119 of the cylindrical part Liquid-tight seal 120 Male connector 121 Male member 123 Outer cylinder 124 Bottom plate 125 Female screw 129 Hole (through hole)
150 Filter 310 Adapter main body 320 Outer cylinder part 700 Patient side connector 921 Male member 928 of patient side connector Inner peripheral surface of male member

Claims (10)

一端にメスコネクタを備え、他端にオスコネクタを備えたアダプタであって、
前記メスコネクタは、中空円筒形状を有する管状部と、前記管状部の外周面に設けられた螺状突起とを備え、
前記オスコネクタは、筒状のオス部材と、前記オス部材と同軸に、前記オス部材を取り囲むように設けられた外筒と、前記外筒の内周面に設けられた雌ネジとを備え、
前記管状部と前記オス部材とは連通されていることを特徴とするアダプタ。
An adapter with a female connector at one end and a male connector at the other end,
The female connector includes a tubular portion having a hollow cylindrical shape, and a screw-like protrusion provided on an outer peripheral surface of the tubular portion,
The male connector includes a cylindrical male member, an outer cylinder provided coaxially with the male member so as to surround the male member, and a female screw provided on an inner peripheral surface of the outer cylinder,
The said tubular part and the said male member are connected, The adapter characterized by the above-mentioned.
全体が一部品として一体的に成形されている請求項1に記載のアダプタ。   The adapter according to claim 1, wherein the whole is integrally formed as one part. 前記オスコネクタは、前記オス部材の基端部と前記外筒とをつなぐ底板を更に備え、
前記底板または前記外筒に、少なくとも1つの貫通孔が設けられている請求項1又は2に記載のアダプタ。
The male connector further includes a bottom plate that connects the base end of the male member and the outer cylinder,
The adapter according to claim 1 or 2, wherein at least one through hole is provided in the bottom plate or the outer cylinder.
前記外筒及び前記雌ネジを備えた外筒部品が前記オス部材に対して着脱可能である請求項1に記載のアダプタ。   The adapter according to claim 1, wherein an outer cylinder part including the outer cylinder and the female screw is detachable from the male member. 前記メスコネクタから前記オス部材までを含むアダプタ本体が、一部品として一体的に成形されている請求項4に記載のアダプタ。   The adapter according to claim 4, wherein an adapter main body including the female connector to the male member is integrally formed as one component. 前記メスコネクタは、前記管状部と同軸に、前記管状部に取り囲まれるように配置された、中空円筒形状を有する筒状部を更に備え、
前記筒状部は、前記メスコネクタを筒状のオス部材を備えた患者側コネクタに接続したとき、前記筒状部と前記患者側コネクタの前記オス部材との間に液密なシールが形成されるように構成されている請求項1〜5のいずれか一項に記載のアダプタ。
The female connector is further provided with a cylindrical portion having a hollow cylindrical shape, arranged coaxially with the tubular portion and surrounded by the tubular portion,
When the female connector is connected to a patient-side connector having a cylindrical male member, a liquid-tight seal is formed between the cylindrical portion and the male member of the patient-side connector. The adapter as described in any one of Claims 1-5 comprised so that.
前記液密なシールは、前記筒状部の外周面と前記患者側コネクタの前記オス部材の内周面との間に形成される請求項6に記載のアダプタ。   The adapter according to claim 6, wherein the liquid-tight seal is formed between an outer peripheral surface of the cylindrical portion and an inner peripheral surface of the male member of the patient-side connector. 前記管状部と前記オス部材とをつなぐ流路上にフィルタが設けられている請求項1〜7のいずれか一項に記載のアダプタ。   The adapter as described in any one of Claims 1-7 with which the filter is provided on the flow path which connects the said tubular part and the said male member. 前記フィルタが、前記オス部材の先端に設けられている請求項8に記載のアダプタ。   The adapter according to claim 8, wherein the filter is provided at a tip of the male member. 前記メスコネクタ及び前記オスコネクタは、ISO80369−3に準拠している請求項1〜9のいずれか一項に記載のアダプタ。   The said female connector and the said male connector are adapters as described in any one of Claims 1-9 based on ISO80369-3.
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