JP2024019362A - Medical equipment and medical equipment set - Google Patents

Medical equipment and medical equipment set Download PDF

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JP2024019362A
JP2024019362A JP2020213910A JP2020213910A JP2024019362A JP 2024019362 A JP2024019362 A JP 2024019362A JP 2020213910 A JP2020213910 A JP 2020213910A JP 2020213910 A JP2020213910 A JP 2020213910A JP 2024019362 A JP2024019362 A JP 2024019362A
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injection needle
internal space
cylindrical portion
opening
needle
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大貴 有馬
Hirotaka Arima
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Terumo Corp
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Terumo Corp
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Priority to PCT/JP2021/047639 priority patent/WO2022138740A1/en
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    • 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
    • A61M39/02Access sites
    • A61M39/04Access sites having pierceable self-sealing members
    • 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
    • A61M39/22Valves or arrangement of valves
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes

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

Abstract

To provide medical equipment and a medical equipment set capable of preventing medicine such as an anti-cancer agent from being spilt from the tip of an injection needle.SOLUTION: An assisting tool 200 includes a cylindrical part 210 having an internal space to surround a tip part of an injection needle 140 where medicine can circulate. The cylindrical part is provided with a first opening 211 and a second opening 212 for communicating the internal space with the outside. The cylindrical part includes a connection part 240 provided at the first opening for enabling connection with equipment for making the pressure of the internal space negative, and a valve member 230 provided adjacently to the second opening in the internal space, into which the injection needle can be inserted, for preventing medicine from being spilt from a second opening side in the internal space in the state that the injection needle is inserted.SELECTED DRAWING: Figure 3

Description

本発明は、医療器具および医療器具セットに関する。 The present invention relates to medical instruments and medical instrument sets.

肝臓に形成された腫瘍を処置する場合、局所的に治療を施してがん細胞を壊死させる経皮的エタノール注入療法(例えば、特許文献1を参照)を行う場合がある。術者は、腹部や胸部を切開し、肝臓に針カニューレを穿刺して、針先を肝臓がんの患部へ到達させる。そして、針先からエタノールを注入することによって、がん細胞を壊死させることができる。 When treating a tumor formed in the liver, percutaneous ethanol injection therapy (for example, see Patent Document 1) may be performed, which locally treats cancer cells to cause necrosis. The surgeon makes an incision in the abdomen or chest, inserts a needle cannula into the liver, and uses the needle tip to reach the area affected by liver cancer. By injecting ethanol through the needle tip, cancer cells can be necrotized.

特許第4588977号公報Patent No. 4588977

上述した針カニューレ等による治療では投与される薬剤に抗がん剤等の比較的人体に副作用等を及ぼす可能性があるものが使用され得る。そのような薬剤は、手術前の準備の過程や手術中等に医療デバイスの針先から零れて暴露されると医療従事者や患者等に影響を及ぼす可能性がある。 In the above-mentioned treatment using a needle cannula or the like, drugs that are relatively likely to cause side effects on the human body, such as anticancer drugs, may be used. If such drugs are spilled from the needle tip of a medical device during pre-surgical preparations or surgery and are exposed, they may affect medical personnel, patients, and the like.

本発明は、上記課題に鑑みてなされたものであり、抗がん剤等の薬剤が注入針の針先から零れることを防止することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to prevent drugs such as anticancer drugs from spilling from the tip of an injection needle.

上記目的を達成する本発明の一態様に係る医療器具は、薬剤が流通可能な中空の注入針の先端部を包囲可能な内部空間を備える筒部を有する。筒部には、内部空間を外部と連通する第1開口部と第2開口部とが設けられる。筒部は、第1接続部と弁部材とを備える。第1接続部は第1開口部に設けられ、内部空間を負圧にする器具との接続を可能に構成している。弁部材は、内部空間において第2開口部に隣接して設けられ、注入針が挿通可能であって、注入針を挿通させた状態において内部空間における第2開口部の側から薬剤の漏出を防止する。 A medical device according to one aspect of the present invention that achieves the above object has a cylindrical portion that includes an internal space that can surround the tip of a hollow injection needle through which a drug can flow. The cylindrical portion is provided with a first opening and a second opening that communicate the internal space with the outside. The cylindrical portion includes a first connecting portion and a valve member. The first connecting portion is provided at the first opening and is configured to be able to be connected to a device that creates negative pressure in the internal space. The valve member is provided adjacent to the second opening in the internal space, through which the injection needle can be inserted, and prevents the drug from leaking from the second opening side in the internal space in a state where the injection needle is inserted. do.

上記目的を達成する本発明の一態様は、医療デバイスと、医療器具と、器具と、を含む医療器具セットである。医療デバイスは薬剤が流通可能な中空の注入針を含む。医療器具は、注入針の先端部を包囲可能な内部空間を備える筒部を有する。筒部には内部空間を外部と連通する第1開口部と第2開口部とが設けられる。筒部は、第1接続部と、弁部材と、を備える。第1接続部は第1開口部に設けられ、内部空間を負圧にする器具との接続を可能に構成している。弁部材は、内部空間において第2開口部に隣接して設けられ、注入針が挿通可能であって、注入針を挿通させた状態において内部空間における第2開口部の側から薬剤の漏出を防止する。上記器具は、第1接続部に接続した状態において内部空間を負圧にする。 One aspect of the present invention that achieves the above object is a medical instrument set that includes a medical device, a medical instrument, and an instrument. The medical device includes a hollow injection needle through which the drug can flow. The medical device has a cylindrical portion with an internal space that can surround the tip of the injection needle. The cylindrical portion is provided with a first opening and a second opening that communicate the internal space with the outside. The cylindrical portion includes a first connecting portion and a valve member. The first connecting portion is provided at the first opening and is configured to be able to be connected to a device that creates negative pressure in the internal space. The valve member is provided adjacent to the second opening in the internal space, through which the injection needle can be inserted, and prevents the drug from leaking from the second opening side in the internal space in a state where the injection needle is inserted. do. The device creates negative pressure in the internal space when connected to the first connection portion.

上記医療器具および医療器具セットによれば、抗がん剤等の薬剤が注入針の針先から零れることを防止することができる。 According to the medical device and medical device set described above, it is possible to prevent drugs such as anticancer drugs from spilling from the tip of the injection needle.

本発明の第1実施形態に係る医療器具セットを示す概略図である。FIG. 1 is a schematic diagram showing a medical instrument set according to a first embodiment of the present invention. 図1の医療器具セットを構成する補助具の中心軸に沿う断面図である。FIG. 2 is a sectional view taken along the central axis of an auxiliary tool that constitutes the medical instrument set of FIG. 1. FIG. 図2の補助具において弁部材に注入針を挿通させた状態を示す図である。FIG. 3 is a diagram showing a state in which the injection needle is inserted through the valve member in the auxiliary tool of FIG. 2; 図2の変形例であって医療器具セットを構成する補助具の変形例1を示す断面図である。FIG. 3 is a sectional view showing a first modification of an auxiliary tool that constitutes a medical instrument set, which is a modification of FIG. 2; 図3の変形例であって医療器具セットを構成する補助具の変形例1を示す断面図である。FIG. 4 is a sectional view showing a first modification of an auxiliary tool that constitutes a medical instrument set, which is a modification of FIG. 3; 図3の変形例であって医療器具セットを構成する補助具の変形例2を示す断面図である。FIG. 4 is a sectional view showing a second modification of the auxiliary tool that constitutes the medical instrument set, which is a modification of FIG. 3; 図3の変形例であって医療器具セットを構成する補助具の変形例3を示す断面図である。FIG. 4 is a sectional view showing a third modification of the auxiliary tool that constitutes the medical instrument set, which is a modification of FIG. 3; 図2の変形例であって医療器具セットを構成する補助具の変形例4を示す断面図である。FIG. 3 is a sectional view showing a fourth modification of the auxiliary tool that constitutes the medical instrument set, which is a modification of FIG. 2; 図3の変形例であって医療器具セットを構成する補助具の変形例4を示す断面図である。FIG. 4 is a sectional view showing a fourth modification of the auxiliary tool that constitutes the medical instrument set, which is a modification of FIG. 3; 図2の変形例であって医療器具セットを構成する補助具の変形例5を示す断面図である。FIG. 3 is a sectional view showing a fifth modification of the auxiliary tool that constitutes the medical instrument set, which is a modification of FIG. 2; 図3の変形例であって医療器具セットを構成する補助具の変形例5を示す断面図である。FIG. 4 is a sectional view showing a fifth modification of the auxiliary tool that constitutes the medical instrument set, which is a modification of FIG. 3; 本発明の第2実施形態に係る医療器具セットを構成する補助具の中心軸に沿う断面図である。FIG. 7 is a sectional view taken along the central axis of an auxiliary tool that constitutes a medical instrument set according to a second embodiment of the present invention. 図12の補助具において弁部材に注入針を挿通させた状態を示す図である。FIG. 13 is a diagram showing a state in which the injection needle is inserted through the valve member in the auxiliary tool of FIG. 12; 本発明の第3実施形態に係る医療器具セットを構成する補助具の中心軸に沿う断面図である。FIG. 7 is a sectional view taken along the central axis of an auxiliary tool that constitutes a medical instrument set according to a third embodiment of the present invention. 図14の補助具において筒部の内部空間に注入針を配置した状態を示す図である。FIG. 15 is a diagram showing a state in which the injection needle is arranged in the internal space of the cylinder part in the auxiliary tool of FIG. 14; 本発明の第4実施形態に係る医療器具セットを構成する補助具の中心軸に沿う断面図である。FIG. 7 is a sectional view taken along the central axis of an auxiliary tool that constitutes a medical instrument set according to a fourth embodiment of the present invention. 図16の補助具において筒部の内部空間に注入針を配置した状態を示す図である。FIG. 17 is a diagram showing a state in which the injection needle is arranged in the internal space of the cylindrical part in the auxiliary tool of FIG. 16.

以下、本発明を実施するための形態について、図面を参照しながら詳細に説明する。ここで示す実施形態は、本発明の技術的思想を具体化するために例示するものであって、本発明を限定するものではない。また、本発明の要旨を逸脱しない範囲で当業者などにより考え得る実施可能な他の形態、実施例および運用技術などは全て本発明の範囲、要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. The embodiments shown here are exemplified to embody the technical idea of the present invention, and are not intended to limit the present invention. In addition, all other possible embodiments, examples, operational techniques, etc. that can be considered by those skilled in the art without departing from the gist of the present invention are included within the scope and gist of the present invention, and are not included in the scope of the claims. inventions and their equivalents.

さらに、本明細書に添付する図面は、図示と理解のしやすさの便宜上、適宜縮尺、縦横の寸法比、形状などについて、実物から変更し模式的に表現される場合があるが、あくまで一例であって、本発明の解釈を限定するものではない。 Furthermore, for the convenience of illustration and ease of understanding, the drawings attached to this specification may be represented schematically by changing the scale, vertical/width dimensional ratio, shape, etc. from the actual thing as appropriate, but these are merely examples. However, this does not limit the interpretation of the present invention.

また、以下の説明において、「第1」、「第2」のような序数詞を付して説明するが、特に言及しない限り、便宜上用いるものであって何らかの順序を規定するものではない。 Further, in the following description, ordinal numbers such as "first" and "second" are used, but unless otherwise specified, these are used for convenience and do not define any order.

以下、図1~図3を参照して本実施形態に係る医療器具セット1について説明する。図1は第1実施形態に係る医療器具セット1を示す概略図である。図2は、図1の医療器具セット1を構成する補助具200の中心軸に沿う断面図である。図3は図2の補助具200において弁部材230に注入針140を挿通させた状態を示す断面図である。 The medical instrument set 1 according to this embodiment will be described below with reference to FIGS. 1 to 3. FIG. 1 is a schematic diagram showing a medical instrument set 1 according to the first embodiment. FIG. 2 is a sectional view taken along the central axis of the auxiliary tool 200 that constitutes the medical instrument set 1 of FIG. FIG. 3 is a sectional view showing a state in which the injection needle 140 is inserted through the valve member 230 in the auxiliary tool 200 of FIG.

本実施形態に係る医療器具セット1は、抗がん剤等の薬剤を患者に投与する際に利用することができる。 The medical device set 1 according to this embodiment can be used when administering drugs such as anticancer drugs to patients.

本実施形態に係る医療器具セット1は、図1を参照して概説すれば、医療デバイス100と、補助具200(医療器具に相当)と、器具300と、を有する。以下、各構成について詳述する。 The medical instrument set 1 according to the present embodiment, briefly referring to FIG. 1, includes a medical device 100, an auxiliary tool 200 (corresponding to a medical instrument), and an instrument 300. Each configuration will be explained in detail below.

(医療デバイス)
医療デバイス100は、抗がん剤等の薬剤を投与可能に構成している。医療デバイス100は、図1に示すように筒部110と、押圧部材120と、シール部材130と、注入針140と、を備える。
(Medical device)
The medical device 100 is configured to be able to administer drugs such as anticancer drugs. The medical device 100 includes a cylindrical portion 110, a pressing member 120, a sealing member 130, and an injection needle 140, as shown in FIG.

筒部110は、抗がん剤等の薬剤を収容する半閉空間を設けている。筒部110は、円筒等の筒形状に構成しており、筒形状の軸方向における両端に開口部を設けている。一方の開口部(基端側開口部とも呼ぶ)には押圧部材120を移動可能に配置することができる。他方の開口部(先端側開口部とも呼ぶ)には、注入針140を取り付けることができる。 The cylindrical portion 110 has a semi-closed space that accommodates a drug such as an anticancer drug. The cylindrical portion 110 has a cylindrical shape such as a cylinder, and has openings at both ends in the axial direction of the cylindrical shape. A pressing member 120 can be movably arranged in one of the openings (also referred to as the proximal opening). An injection needle 140 can be attached to the other opening (also referred to as the distal opening).

押圧部材120は、先端側を筒部110の半閉空間に収容し、基端側を筒部110の外部に配置するように構成している。押圧部材120は、筒部110の軸方向において筒部110に対して相対的に移動することによって薬剤が収容される半閉空間の大きさを変えるように構成している。押圧部材120によって半閉空間の大きさが減少することによって、半閉空間に収容されていた薬剤は減少した分、注入針140の内腔に流通し、患者に投与され得る。 The pressing member 120 is configured such that its distal end side is accommodated in the semi-closed space of the cylindrical portion 110 and its proximal end side is disposed outside the cylindrical portion 110. The pressing member 120 is configured to change the size of the semi-closed space in which the drug is accommodated by moving relative to the cylindrical portion 110 in the axial direction of the cylindrical portion 110. As the size of the semi-closed space is reduced by the pressing member 120, the reduced amount of the drug contained in the semi-closed space flows into the lumen of the injection needle 140 and can be administered to the patient.

シール部材130は、押圧部材120の軸方向における先端部に取り付けるように構成している。シール部材130は、筒部110の内壁と摺動可能に篏合することによって筒部110の半閉空間に収容された薬剤が注入針140以外から流通することを防止する。 The sealing member 130 is configured to be attached to the tip end of the pressing member 120 in the axial direction. The sealing member 130 is slidably engaged with the inner wall of the cylindrical portion 110 to prevent the drug contained in the semi-closed space of the cylindrical portion 110 from flowing from sources other than the injection needle 140.

注入針140は、筒部110の先端側における開口部に取り付けられる。注入針140は、内部に薬剤を流通できるように中空に構成している。注入針140は、筒部110の先端部に取り付けられ、注入針140の内腔は筒部110の半閉空間と連通するように構成している。 The injection needle 140 is attached to an opening on the distal end side of the cylindrical portion 110. The injection needle 140 is hollow so that the medicine can flow therein. The injection needle 140 is attached to the distal end of the cylindrical part 110, and the inner cavity of the injection needle 140 is configured to communicate with the semi-closed space of the cylindrical part 110.

医療デバイス100の筒部110、押圧部材120、シール部材130、および注入針140は、注入針140を通じて患者に薬剤を投与できれば、各々の具体的な材料は特に限定されない。一例として、各々の材料は筒部110および押圧部材120をポリプロピレンやポリエチレン等のプラスチックによって構成し、シール部材130はブチルゴム、シリコンゴムまたはエラストマー等によって構成できる。注入針140はステンレス鋼等によって構成することができる。 The specific materials of the cylindrical portion 110, the pressing member 120, the sealing member 130, and the injection needle 140 of the medical device 100 are not particularly limited as long as the medicine can be administered to the patient through the injection needle 140. For example, the cylindrical portion 110 and the pressing member 120 may be made of plastic such as polypropylene or polyethylene, and the sealing member 130 may be made of butyl rubber, silicone rubber, elastomer, or the like. The injection needle 140 can be made of stainless steel or the like.

(補助具)
補助具200は、注入針140の内腔に薬剤を流通させるプライミングの際に注入針140の先端から薬剤が漏出することで薬剤が医療従事者や患者に飛散すること等を防止する。補助具200は、図2等に示すように筒部210を備える。筒部210は、ストッパー220(挿通壁に相当)と、弁部材230と、接続部240(第1接続部に相当)と、を備える。
(Auxiliary equipment)
The auxiliary tool 200 prevents the medicine from leaking out from the tip of the injection needle 140 during priming to flow the medicine into the inner cavity of the injection needle 140, thereby preventing the medicine from scattering onto medical personnel and patients. The auxiliary tool 200 includes a cylindrical portion 210 as shown in FIG. 2 and the like. The cylindrical portion 210 includes a stopper 220 (corresponding to an insertion wall), a valve member 230, and a connecting portion 240 (corresponding to a first connecting portion).

筒部210は、薬剤が流通可能な中空の注入針140の先端部を包囲できるように内部空間を構成する第1半閉空間213と第2半閉空間214とを設けている。筒部210は、第1半閉空間213および第2半閉空間214を設けた円筒等の筒形状に構成している。ただし、筒部210は、プライミング時に薬剤が外部に漏出することを防止できれば、具体的な形状は円筒に限定されず、円筒以外の他の角筒(多角柱)等によって構成してもよい。筒部210は、本実施形態において一部材で構成している。 The cylindrical portion 210 has a first semi-closed space 213 and a second semi-closed space 214 that constitute an internal space so as to surround the tip of the hollow injection needle 140 through which the medicine can flow. The cylindrical portion 210 has a cylindrical shape, such as a cylinder, in which a first semi-closed space 213 and a second semi-closed space 214 are provided. However, the specific shape of the cylindrical portion 210 is not limited to a cylinder, and may be formed of a rectangular cylinder (polygonal prism) or the like other than a cylinder, as long as the medicine can be prevented from leaking to the outside during priming. The cylindrical portion 210 is made of one member in this embodiment.

筒部210は、筒形状の軸方向において先端側と基端側の両方に第1半閉空間213または第2半閉空間214を外部と連通させる開口部を設けている。本明細書では第1半閉空間213を外部と連通させる先端側の開口部を第1開口部211、第2半閉空間214を外部と連通させる基端側の開口部を第2開口部212と呼ぶ。第1半閉空間213の図2における注入針140の挿入方向の寸法(縦方向の寸法d1)は注入針140が挿入時に注入針140と対向する壁部215に接触しない、または到達しにくい程度に構成できる。 The cylindrical portion 210 has openings that communicate the first semi-closed space 213 or the second semi-closed space 214 with the outside on both the distal end side and the proximal end side in the axial direction of the cylindrical shape. In this specification, the opening on the distal side that communicates the first semi-closed space 213 with the outside is the first opening 211, and the opening on the proximal end that communicates the second semi-closed space 214 with the outside is the second opening 212. It is called. The dimension (vertical dimension d1) of the first semi-closed space 213 in the insertion direction of the injection needle 140 in FIG. It can be configured as follows.

ストッパー220は、本実施形態において筒部210の内部空間である第2半閉空間214に設けられる。ストッパー220には医療デバイス100の注入針140を挿通させ、注入針140以外の針管の挿通を妨げる第3開口部221(縮小部に相当)を設けるように構成している。 The stopper 220 is provided in the second semi-closed space 214, which is the internal space of the cylindrical portion 210 in this embodiment. The stopper 220 is configured to have a third opening 221 (corresponding to a reduced portion) that allows the injection needle 140 of the medical device 100 to be inserted therethrough and prevents the insertion of needle tubes other than the injection needle 140 .

第3開口部221は、筒部210の第1半閉空間213に進入する方向から軸方向に進むにつれて軸方向に交差する断面の面積が小さくなるように構成している。そのように構成することによって、注入針140を第3開口部221に挿入しやすくすることができる。第3開口部221は、本実施形態において径方向の寸法が段階的に変化する段付き形状を備えるように構成している。ただし、第3開口部は段付き形状に代えて、または段付き形状に加えてテーパー形状を備えるように構成してもよい。 The third opening 221 is configured such that the area of the cross section intersecting the axial direction decreases as it advances in the axial direction from the direction in which it enters the first semi-closed space 213 of the cylindrical portion 210. With such a configuration, the injection needle 140 can be easily inserted into the third opening 221. In this embodiment, the third opening 221 is configured to have a stepped shape in which the radial dimension changes stepwise. However, the third opening may have a tapered shape instead of or in addition to the stepped shape.

弁部材230は、筒部210の内部空間の軸方向において第2開口部212に隣接して設けている。筒部210の内部空間は、弁部材230によって第1開口部211側の第1半閉空間213と第2開口部212側の第2半閉空間214とに分割できる。 The valve member 230 is provided adjacent to the second opening 212 in the axial direction of the internal space of the cylindrical portion 210 . The internal space of the cylindrical portion 210 can be divided by the valve member 230 into a first semi-closed space 213 on the first opening 211 side and a second semi-closed space 214 on the second opening 212 side.

弁部材230は、医療デバイス100のシール部材130を構成する弾性変形可能な弾性部材と同様の部材によって構成できる。弁部材230は、筒部210の軸方向に交差する断面形状と同様に断面形状を略円形状に構成している。弁部材230は、本実施形態においてストッパー220に隣接して設けている。 The valve member 230 can be made of a member similar to the elastically deformable elastic member that constitutes the seal member 130 of the medical device 100. The valve member 230 has a substantially circular cross-sectional shape similar to the cross-sectional shape of the cylindrical portion 210 that intersects with the axial direction. The valve member 230 is provided adjacent to the stopper 220 in this embodiment.

弁部材230は、本実施形態において図2等に示すように略中央部において切り込み231を設けるように構成している。これにより、注入針140の先端部は、図3に示すように筒部210の第2開口部212から弁部材230を弾性変形させることによって、切り込み231から弁部材230を挿通して筒部210の第1半閉空間213に進入させる(挿入する)ことができる。 In this embodiment, the valve member 230 is configured to have a notch 231 approximately at the center, as shown in FIG. 2 and the like. Thereby, as shown in FIG. 3, the distal end of the injection needle 140 is inserted through the valve member 230 through the notch 231 by elastically deforming the valve member 230 from the second opening 212 of the cylindrical portion 210, and then inserted into the cylindrical portion 210. can enter (insert) into the first semi-closed space 213 of.

弁部材230は、注入針140の先端部を第1半閉空間213に挿入した状態において注入針140を保持する。弁部材230は、注入針140を挿通させた状態において内部空間における第2開口部212の側から薬剤の漏出を防止する。 The valve member 230 holds the injection needle 140 in a state where the distal end of the injection needle 140 is inserted into the first semi-closed space 213. The valve member 230 prevents the medicine from leaking from the second opening 212 side in the internal space when the injection needle 140 is inserted therethrough.

弁部材230の切り込み231は、本実施形態において十字に形成している。ただし、注入針140が弁部材を挿通でき、挿通した状態で挿通箇所から薬剤が流出しなければ、切り込みの具体的な形状は十字に限定されない。また、注入針140を弁部材と密着した状態で注入針140の先端部を第1半閉空間213に挿入できれば、弁部材には切り込みを設けなくてもよい。 The notch 231 of the valve member 230 is formed in a cross shape in this embodiment. However, the specific shape of the cut is not limited to a cross, as long as the injection needle 140 can be inserted through the valve member and the drug does not flow out from the insertion point in the inserted state. Furthermore, if the distal end of the injection needle 140 can be inserted into the first semi-closed space 213 while the injection needle 140 is in close contact with the valve member, there is no need to provide a notch in the valve member.

接続部240は、筒部210の軸方向において第1開口部211の側に設けている。接続部240は、後述するように筒部210の第1半閉空間213(内部空間)を負圧にする器具300との接続を可能に構成している。 The connecting portion 240 is provided on the first opening 211 side in the axial direction of the cylindrical portion 210 . The connecting portion 240 is configured to be able to be connected to a device 300 that makes the first semi-closed space 213 (internal space) of the cylindrical portion 210 a negative pressure, as will be described later.

接続部240は、第1開口部211を設け、第1開口部211は筒部210の第1半閉空間213と連通するように構成している。これにより、接続部240に器具300の接続部材340等を取り付けた状態で器具300を操作することによって、筒部210の第1半閉空間213を負圧にすることができる。 The connecting portion 240 is provided with a first opening 211, and the first opening 211 is configured to communicate with the first semi-closed space 213 of the cylindrical portion 210. Thereby, by operating the instrument 300 with the connecting member 340 and the like of the instrument 300 attached to the connecting portion 240, the first semi-closed space 213 of the cylindrical portion 210 can be made to have a negative pressure.

接続部240は、本実施形態において筒部210と同様に軸線が注入針140の挿入方向と平行な中空の円筒形状に構成している。ただし、器具300と接続した状態で器具300を操作することによって筒部の第1半閉空間を負圧にできれば、接続部の具体的な形状は上記に限定されず、筒部と同様に多角柱等の他の筒形状によって構成してもよい。 In this embodiment, the connecting part 240 has a hollow cylindrical shape with an axis parallel to the insertion direction of the injection needle 140, similarly to the cylindrical part 210. However, as long as the first semi-closed space of the cylindrical portion can be made negative pressure by operating the device 300 while connected to the device 300, the specific shape of the connecting portion is not limited to the above, and can be shaped like the cylindrical portion. It may also be configured with other cylindrical shapes such as a prismatic shape.

(器具)
器具300は、補助具200と接続した状態で使用者の操作により筒部210の第1半閉空間213を負圧にするように構成している。器具300は、図1に示すように筒部310と、押圧部材320と、シール部材330と、接続部材340と、を備える。
(equipment)
The device 300 is configured so that the first semi-closed space 213 of the cylindrical portion 210 is made to have a negative pressure by the user's operation while connected to the auxiliary tool 200. The instrument 300 includes a cylindrical portion 310, a pressing member 320, a sealing member 330, and a connecting member 340, as shown in FIG.

筒部310は、医療デバイス100の筒部110と同様であり、押圧部材320は押圧部材120と同様であり、シール部材330はシール部材130と同様であるため、詳細な説明を省略する。 The cylindrical portion 310 is similar to the cylindrical portion 110 of the medical device 100, the pressing member 320 is similar to the pressing member 120, and the sealing member 330 is similar to the sealing member 130, so a detailed description will be omitted.

接続部材340は、気体等の流体を流通可能なチューブ等の中空部材を備えるように構成している。術者は接続部材340の一方を筒部310に取り付け、他方を補助具200の接続部240に取り付けた状態で筒部310の半閉空間が増加するように押圧部材320を移動させる操作を行う。これにより、補助具200における筒部210の第1半閉空間213を負圧にすることができる。 The connecting member 340 is configured to include a hollow member such as a tube through which fluid such as gas can flow. The operator attaches one of the connecting members 340 to the cylindrical part 310 and the other to the connecting part 240 of the auxiliary tool 200, and performs an operation to move the pressing member 320 so that the semi-closed space of the cylindrical part 310 increases. . Thereby, the first semi-closed space 213 of the cylindrical portion 210 in the auxiliary tool 200 can be made to have a negative pressure.

なお、器具300は本実施形態において医療デバイス100と同様の部材を備えるように構成しているが、補助具200の第1半閉空間213を負圧にできれば、具体的な構成は医療デバイス100と同様の構成に限定されない。 Note that although the instrument 300 is configured to include the same members as the medical device 100 in this embodiment, if the first semi-closed space 213 of the auxiliary instrument 200 can be made negative pressure, the specific configuration is similar to that of the medical device 100. It is not limited to the same configuration.

(使用例)
次に本実施形態に係る医療器具セット1の使用例について説明する。
(Example of use)
Next, a usage example of the medical instrument set 1 according to this embodiment will be described.

まず、医師等の術者は医療デバイス100の注入針140を補助具200の弁部材230の切り込み231に差し込み、注入針140の先端部を筒部210の第1半閉空間213に配置(挿入)する。 First, an operator such as a doctor inserts the injection needle 140 of the medical device 100 into the notch 231 of the valve member 230 of the auxiliary tool 200, and places the tip of the injection needle 140 in the first semi-closed space 213 of the cylindrical part 210 (insertion )do.

次に、術者は器具300の接続部材340を補助具200の接続部240に接続する。そして、術者は器具300の筒部310の内部空間が広がるように押圧部材320を筒部310に対して軸方向に相対的に移動させる操作を行う。これにより、補助具200の第1半閉空間213が負圧になる。 Next, the operator connects the connecting member 340 of the instrument 300 to the connecting part 240 of the auxiliary tool 200. Then, the operator performs an operation to move the pressing member 320 relative to the cylindrical portion 310 in the axial direction so that the internal space of the cylindrical portion 310 of the instrument 300 is expanded. As a result, the first semi-closed space 213 of the auxiliary tool 200 becomes negative pressure.

その結果、医療デバイス100の筒部110の内部空間に収容された薬剤の少なくとも一部が筒部110の内部空間から注入針140の内腔に移動する。術者は、注入針140の先端部が筒部210の第1半閉空間213に配置された状態で筒部110内に配置された薬剤を注入針140の内腔に移動させる操作により、薬剤が注入針140の先端部から第1半閉空間213に出たことを目視にて確認できる。 As a result, at least a portion of the drug contained in the internal space of the cylindrical portion 110 of the medical device 100 moves from the internal space of the cylindrical portion 110 to the lumen of the injection needle 140. With the distal end of the injection needle 140 placed in the first semi-closed space 213 of the cylinder part 210, the operator moves the medicine placed in the cylinder part 110 into the inner cavity of the injection needle 140, thereby injecting the medicine into the inner cavity of the injection needle 140. It can be visually confirmed that the liquid has exited from the tip of the injection needle 140 into the first semi-closed space 213.

次に、術者は、注入針140を筒部210の第1半閉空間213から抜去する。注入針140の外表面に薬剤が付着した場合、注入針140が筒部210の第1半閉空間213から出る際に弁部材230を通過することで、薬剤を弁部材230に付着させて筒部210の第1半閉空間213に留めることができる。 Next, the operator removes the injection needle 140 from the first semi-closed space 213 of the cylindrical portion 210. If a drug adheres to the outer surface of the injection needle 140, the injection needle 140 passes through the valve member 230 when exiting the first semi-closed space 213 of the cylindrical portion 210, so that the drug adheres to the valve member 230 and is removed from the tube. It can be kept in the first semi-closed space 213 of the section 210.

次に、術者は患者の腹部の周辺に小切開部を形成する。そして、術者は、エコー下で注入針140を経皮的に穿刺し、腫瘍手前あるいは腫瘍内部までアクセスする。そして、術者は筒部110の内部空間が減少するように押圧部材120を筒部110に対して軸方向に相対的に移動させて薬剤を患者に投与する。 Next, the surgeon makes a small incision around the patient's abdomen. Then, the operator percutaneously punctures the injection needle 140 under echocardiography to access the front side of the tumor or the inside of the tumor. Then, the operator moves the pressing member 120 relative to the cylindrical part 110 in the axial direction so that the internal space of the cylindrical part 110 is reduced, and administers the drug to the patient.

以上、説明したように本実施形態に係る医療器具セット1は、医療デバイス100と、補助具200と、器具300と、を備える。医療デバイス100は、薬剤が流通可能な中空の注入針140を含む。補助具200は、注入針140の先端部を包囲可能な内部空間を備える筒部210を有し、筒部210には内部空間を外部と連通する第1開口部211と第2開口部212とが設けられる。 As described above, the medical instrument set 1 according to the present embodiment includes the medical device 100, the auxiliary tool 200, and the instrument 300. Medical device 100 includes a hollow injection needle 140 through which medication can flow. The auxiliary tool 200 has a cylindrical part 210 that has an internal space that can surround the tip of the injection needle 140, and the cylindrical part 210 has a first opening 211 and a second opening 212 that communicate the internal space with the outside. is provided.

筒部210は、接続部240と、弁部材230と、を備える。接続部240は、第1開口部211に設けられ、内部空間である第1半閉空間213を負圧にする器具300との接続を可能に構成している。 The cylindrical portion 210 includes a connecting portion 240 and a valve member 230. The connecting portion 240 is provided in the first opening 211 and is configured to be connectable to a device 300 that makes the first semi-closed space 213, which is an internal space, a negative pressure.

弁部材230は、内部空間において第2開口部212に隣接して設けられ、注入針140が挿通可能であって、注入針140を挿通させた状態において内部空間における第2開口部212の側から薬剤の漏出を防止する。器具300は、接続部240に接続した状態において内部空間である第1半閉空間213を負圧にするように構成している。 The valve member 230 is provided adjacent to the second opening 212 in the internal space, through which the injection needle 140 can be inserted, and when the injection needle 140 is inserted therein, the valve member 230 is provided adjacent to the second opening 212 in the internal space. Prevent drug leakage. The instrument 300 is configured to create a negative pressure in the first semi-closed space 213, which is an internal space, when it is connected to the connecting portion 240.

このように構成することによって、軸方向における第1開口部211では器具300と接続することで薬剤の外部への漏出を防止でき、第2開口部212の側では弁部材230によって薬剤の外部への漏出を防止することができる。これにより、医療従事者や患者等への薬剤の飛散および医療デバイス100の周辺の床や医療機器が薬剤によって汚染されることを防止できる。また、プライミング後に注入針140を弁部材230から抜き去ることによって、注入針140の外表面に薬剤が付着することを防止できる。 With this configuration, the first opening 211 in the axial direction can prevent the medicine from leaking to the outside by being connected to the device 300, and the valve member 230 can prevent the medicine from leaking to the outside on the second opening 212 side. leakage can be prevented. This can prevent the medicine from scattering to medical personnel, patients, etc., and from contaminating the floor and medical equipment around the medical device 100 with the medicine. Further, by removing the injection needle 140 from the valve member 230 after priming, it is possible to prevent the drug from adhering to the outer surface of the injection needle 140.

また、弁部材230は、注入針140を挿通させる切り込み231を備えるように構成している。このように構成することによって、注入針140の先端部を筒部210の内部空間である第1半閉空間213に挿入し易くすることができる。 Further, the valve member 230 is configured to include a notch 231 through which the injection needle 140 is inserted. With this configuration, the tip of the injection needle 140 can be easily inserted into the first semi-closed space 213, which is the internal space of the cylindrical portion 210.

また、筒部210は、内部空間に設けられ、注入針140を挿通させ、注入針140以外の挿通を妨げるストッパー220を備える。ストッパー220は、注入針140の内部空間への挿入方向においてストッパー220の挿入方向に交差する断面の面積が縮小する第3開口部221を備えるように構成している。このように構成することによって、注入針140を筒部210の内部空間である第1半閉空間213に挿入し易くすることができる。 Further, the cylinder portion 210 includes a stopper 220 that is provided in the internal space, allows the injection needle 140 to be inserted therethrough, and prevents insertion of anything other than the injection needle 140 . The stopper 220 is configured to include a third opening 221 in which the area of a cross section intersecting the insertion direction of the stopper 220 is reduced in the insertion direction of the injection needle 140 into the internal space. With this configuration, the injection needle 140 can be easily inserted into the first semi-closed space 213, which is the internal space of the cylindrical portion 210.

(第1実施形態の変形例1)
図4は第1実施形態の変形例1に係る医療器具セットを構成する補助具200aの中心軸に沿う断面図、図5は補助具200aの筒部210の内部空間に注入針140の先端部を配置した状態を示す断面図である。
(Modification 1 of the first embodiment)
FIG. 4 is a sectional view taken along the central axis of an auxiliary tool 200a constituting a medical instrument set according to Modification 1 of the first embodiment, and FIG. FIG. 3 is a cross-sectional view showing a state in which the

第1実施形態において注入針140の先端部は弁部材230の切り込み231を通過することによって筒部210の内部空間を構成する第1半閉空間213に進入する(挿入される)と説明したが、筒部の内部空間には以下の部材を設けてもよい。 In the first embodiment, it has been explained that the tip of the injection needle 140 enters (inserts) into the first semi-closed space 213 that constitutes the internal space of the cylinder part 210 by passing through the notch 231 of the valve member 230. The following members may be provided in the internal space of the cylindrical portion.

変形例1に係る医療器具セットは、医療デバイス100と、補助具200aと、器具300と、を有する。医療デバイス100と器具300は第1実施形態と同様であるため、説明を省略する。 The medical instrument set according to Modification 1 includes a medical device 100, an auxiliary tool 200a, and an instrument 300. Since the medical device 100 and the instrument 300 are the same as those in the first embodiment, their description will be omitted.

補助具200aの筒部210aは、図4、図5に示すようにストッパー220と、弁部材230と、接続部240と、吸収部材250と、を備える。ストッパー220、弁部材230、および接続部240は第1実施形態と同様であるため、説明を省略する。 The cylindrical portion 210a of the auxiliary tool 200a includes a stopper 220, a valve member 230, a connecting portion 240, and an absorbing member 250, as shown in FIGS. 4 and 5. Since the stopper 220, the valve member 230, and the connecting portion 240 are the same as those in the first embodiment, their explanations will be omitted.

吸収部材250は、筒部210aの内部空間に設けられ、注入針140の外表面に付着した薬剤を吸収可能に構成している。吸収部材250は、注入針140の外表面に付着した薬剤を吸収し易ければ材料は特に限定されないが、吸水性樹脂や吸水性繊維等を含むように構成できる。 The absorbing member 250 is provided in the internal space of the cylindrical portion 210a and is configured to be able to absorb the drug attached to the outer surface of the injection needle 140. The material of the absorbing member 250 is not particularly limited as long as it can easily absorb the drug attached to the outer surface of the injection needle 140, but it can be configured to include water-absorbing resin, water-absorbing fiber, or the like.

また、吸収部材250は、図4、図5において弁部材230に対して下方(第2開口部212側)に配置しているが、注入針140に付着した薬剤を吸収できれば、弁部材の上方(第1開口部211側)に配置してもよい。 In addition, although the absorbing member 250 is arranged below the valve member 230 (on the second opening 212 side) in FIGS. 4 and 5, if the drug adhering to the injection needle 140 can be absorbed, It may be arranged on the first opening 211 side.

次に本変形例に係る医療器具セットの使用例について説明する。まず、術者は医療デバイス100の注入針140を補助具200aの弁部材230の切り込み231に差し込む。注入針140は、切り込み231を挿通する際に吸収部材250を挿通する。 Next, an example of use of the medical instrument set according to this modification will be described. First, the operator inserts the injection needle 140 of the medical device 100 into the notch 231 of the valve member 230 of the auxiliary tool 200a. The injection needle 140 passes through the absorption member 250 when passing through the cut 231 .

接続部材340の接続部240への接続、押圧部材320の操作によるプライミングは第1実施形態と同様であるため、説明を省略する。 Connection of the connecting member 340 to the connecting portion 240 and priming by operating the pressing member 320 are the same as in the first embodiment, and therefore, description thereof will be omitted.

次に、術者は注入針140を筒部210aの第1半閉空間213から抜去する。注入針140を抜去する際に注入針140は外表面が吸収部材250を摺動するように通過する。これにより、プライミングの際に注入針140の外表面に付着した薬剤や汚れ等を除去することができる。以降の手技は第1実施形態と同様であるため、説明を省略する。 Next, the operator removes the injection needle 140 from the first semi-closed space 213 of the cylindrical portion 210a. When the injection needle 140 is removed, the outer surface of the injection needle 140 slides past the absorbent member 250. This makes it possible to remove chemicals, dirt, and the like that adhere to the outer surface of the injection needle 140 during priming. The subsequent procedures are the same as those in the first embodiment, so their explanation will be omitted.

以上説明したように本変形例1では筒部210aの内部空間に注入針140の外表面に付着した薬剤を吸収可能な吸収部材250を設けるように構成している。このように構成することによって、プライミングの際に注入針140の外表面に付着した薬剤等を注入針140から除去することができる。 As explained above, in the present modification 1, the absorbing member 250 capable of absorbing the drug attached to the outer surface of the injection needle 140 is provided in the inner space of the cylindrical portion 210a. With this configuration, it is possible to remove from the injection needle 140 drugs and the like that have adhered to the outer surface of the injection needle 140 during priming.

(第1実施形態の変形例2)
図6は、図3の変形例であって、筒部210bの内部空間に保護部材260を配置した状態を示す図である。
(Modification 2 of the first embodiment)
FIG. 6 is a modification of FIG. 3, and is a diagram showing a state in which a protection member 260 is arranged in the internal space of the cylindrical portion 210b.

第1実施形態において医療デバイス100の注入針140の先端部は、プライミングの際に筒部210の内部空間である第1半閉空間213に配置するが、筒部210の内部空間には保護部材260を設けることができる。なお、本変形例に係る医療器具セットは医療デバイス100と、補助具200bと、器具300と、を備える。医療デバイス100と器具300は第1実施形態と同様であるため、説明を省略する。 In the first embodiment, the tip of the injection needle 140 of the medical device 100 is placed in the first semi-closed space 213 which is the internal space of the cylindrical part 210 during priming, but there is a protective member in the internal space of the cylindrical part 210. 260 can be provided. Note that the medical instrument set according to this modification includes a medical device 100, an auxiliary tool 200b, and an instrument 300. Since the medical device 100 and the instrument 300 are the same as those in the first embodiment, their description will be omitted.

補助具200bの筒部210bは、図6に示すようにストッパー220と、弁部材230と、接続部240と、保護部材260と、を備える。ストッパー220、弁部材230、および接続部240は第1実施形態と同様であるため、説明を省略する。 The cylindrical portion 210b of the auxiliary tool 200b includes a stopper 220, a valve member 230, a connecting portion 240, and a protection member 260, as shown in FIG. Since the stopper 220, the valve member 230, and the connecting portion 240 are the same as those in the first embodiment, their explanations will be omitted.

保護部材260は、注入針140の先端部を保護する。保護部材260は、筒部210bの内部空間である第1半閉空間213において弁部材230と接続部240との間に設けている。保護部材260は、本実施形態において穴部261を設けている。穴部261には注入針140の先端部を嵌合等により挿通させることができる。 The protection member 260 protects the tip of the injection needle 140. The protection member 260 is provided between the valve member 230 and the connecting portion 240 in the first semi-closed space 213, which is the internal space of the cylindrical portion 210b. The protective member 260 is provided with a hole 261 in this embodiment. The tip of the injection needle 140 can be inserted into the hole 261 by fitting or the like.

保護部材260は、注入針140の先端部を保護できれば具体的な材料は限定されないが、一例としてシール部材130と同様の材料を挙げることができる。 The material of the protective member 260 is not limited as long as it can protect the tip of the injection needle 140, but the same material as the sealing member 130 can be used as an example.

本変形例に係る医療器具セットの使用例は、術者が注入針140を弁部材230に差し込む際に注入針140の先端部を保護部材260の穴部261に挿入する。これにより、注入針140の先端部の軸方向における位置が固定されるか、動き難くなる。その他は第1実施形態と同様であるため、説明を省略する。 In a usage example of the medical instrument set according to this modification, when an operator inserts the injection needle 140 into the valve member 230, the distal end of the injection needle 140 is inserted into the hole 261 of the protection member 260. As a result, the position of the tip of the injection needle 140 in the axial direction is fixed or becomes difficult to move. The rest is the same as the first embodiment, so the explanation will be omitted.

以上説明したように本変形例2では、筒部210の内部空間における弁部材230と接続部240の間に注入針140の先端部を保護する保護部材260を設けるように構成している。このように構成することによって、注入針140の先端部がプライミングの際に筒部210の壁部215に衝突して変形し、穿刺力が落ちたり、薬剤の投与が上手くいかなくなったりすること等を防止できる。 As explained above, in the present modification 2, the protection member 260 that protects the tip of the injection needle 140 is provided between the valve member 230 and the connecting portion 240 in the internal space of the cylindrical portion 210. With this configuration, the tip of the injection needle 140 collides with the wall 215 of the cylindrical portion 210 during priming and is deformed, reducing the puncture force and preventing successful drug administration. can be prevented.

(第1実施形態の変形例3)
図7は図3の変形例に係る医療器具セットを構成する補助具200cを示す図である。変形例2では注入針140の先端部を挿通可能な穴部261を設けた保護部材260を筒部210bの内部空間に配置すると説明した。
(Variation 3 of the first embodiment)
FIG. 7 is a diagram showing an auxiliary tool 200c constituting a medical instrument set according to a modified example of FIG. In Modification 2, it has been explained that the protection member 260 provided with the hole 261 through which the tip of the injection needle 140 can be inserted is arranged in the internal space of the cylindrical part 210b.

ただし、保護部材260cは、注入針140の先端部を保護できれば図6に限定されず、図7に示すように筒部210cの内部空間において接続部240の近傍に配置し、穴部261を設けなくてもよい。このように構成することによっても注入針140の先端部を弁部材230に挿通させた際に注入針140の先端部が筒部210cの壁部215に衝突して注入針140の先端部が変形等することを防止できる。 However, the protection member 260c is not limited to that shown in FIG. 6 as long as it can protect the tip of the injection needle 140, and as shown in FIG. You don't have to. With this configuration, when the tip of the injection needle 140 is inserted through the valve member 230, the tip of the injection needle 140 collides with the wall 215 of the cylindrical portion 210c, and the tip of the injection needle 140 is deformed. etc. can be prevented.

なお、本変形例において保護部材260c以外の構成は第1実施形態と同様であり、使用例は第1実施形態と同様である。そのため、説明を省略する。 In addition, in this modification, the structure other than the protection member 260c is the same as that of 1st Embodiment, and the example of use is the same as that of 1st Embodiment. Therefore, the explanation will be omitted.

(第1実施形態の変形例4)
図8は第1実施形態の変形例4を示す医療器具セットの補助具200dの中心軸に沿う断面図、図9は筒部210dの第1半閉空間213に注入針140の先端部を配置した状態を示す図である。第1実施形態では筒部210の第1開口部211に接続部240を設けると説明したが、第1開口部211には薬剤の流通を阻害する部材を設けることができる。
(Modification 4 of the first embodiment)
FIG. 8 is a sectional view taken along the central axis of an auxiliary tool 200d of a medical instrument set showing a fourth modification of the first embodiment, and FIG. 9 shows a distal end of an injection needle 140 disposed in a first semi-closed space 213 of a cylindrical portion 210d. FIG. In the first embodiment, it has been described that the connecting portion 240 is provided in the first opening 211 of the cylindrical portion 210, but the first opening 211 may be provided with a member that inhibits the flow of the medicine.

本変形例に係る医療器具セットは、医療デバイス100と、補助具200dと、器具300と、を有する。医療デバイス100と器具300は第1実施形態と同様であるため、説明を省略する。 The medical instrument set according to this modification includes a medical device 100, an auxiliary tool 200d, and an instrument 300. Since the medical device 100 and the instrument 300 are the same as those in the first embodiment, their description will be omitted.

補助具200dの筒部210dは、図8、図9に示すようにストッパー220と、弁部材230と、接続部240と、膜状部材270と、を備える。ストッパー220、弁部材230、および接続部240は第1実施形態と同様であるため、説明を省略する。 The cylindrical portion 210d of the auxiliary tool 200d includes a stopper 220, a valve member 230, a connecting portion 240, and a membrane member 270, as shown in FIGS. 8 and 9. Since the stopper 220, the valve member 230, and the connecting portion 240 are the same as those in the first embodiment, their explanations will be omitted.

膜状部材270は、第1開口部211に設けられ、筒部210dの内部空間である第1半閉空間213と外部との間で気体を流通させ、かつ、液体の流通を阻害する。膜状部材270は、一例として第1開口部211に設置されるPTFE(Polytetrafluoroethylene)多孔質膜等を含むことができる。 The membrane member 270 is provided in the first opening 211, allows gas to flow between the first semi-closed space 213, which is the internal space of the cylindrical portion 210d, and the outside, and inhibits liquid flow. The membrane member 270 may include, for example, a porous PTFE (Polytetrafluoroethylene) membrane installed in the first opening 211.

本変形例に係る医療器具セットの使用例は第1実施形態の医療器具セット1と同様であるため、説明を省略する。 The usage example of the medical instrument set according to this modification is the same as that of the medical instrument set 1 of the first embodiment, so the explanation will be omitted.

以上、説明したように本変形例では筒部210dの第1開口部211に筒部210dの内部空間と外部との間で気体を流通させ、液体の流通を阻害する膜状部材270を設けるように構成している。そのため、筒部210dの内部空間である第1半閉空間213において注入針140の先端部から漏れ出た薬剤が器具300に流通することを防止することができる。 As described above, in this modification, a membrane member 270 is provided in the first opening 211 of the cylindrical portion 210d to allow gas to flow between the internal space of the cylindrical portion 210d and the outside and to inhibit the flow of liquid. It is composed of Therefore, the medicine leaking from the tip of the injection needle 140 in the first semi-closed space 213, which is the internal space of the cylindrical part 210d, can be prevented from flowing into the instrument 300.

(第1実施形態の変形例5)
図10は第1実施形態の変形例5に係る医療器具セットを構成する補助具200eの中心軸に沿う断面図、図11は補助具200eの筒部210eの第1半閉空間213eに注入針140の先端部を配置した状態を示す図である。
(Variation 5 of the first embodiment)
FIG. 10 is a sectional view taken along the central axis of an auxiliary tool 200e constituting a medical instrument set according to modification 5 of the first embodiment, and FIG. 11 shows an injection needle inserted into the first semi-closed space 213e of the cylindrical portion 210e of the auxiliary tool 200e. 140 is a diagram showing a state in which the distal end portion of No. 140 is arranged.

第1実施形態では接続部240の第1開口部211の軸線が注入針140の挿入方向に沿うように構成したが、以下のように構成することができる。本変形例において医療器具セットは、医療デバイス100と、補助具200eと、器具300と、を有する。医療デバイス100と器具300は第1実施形態と同様であるため、説明を省略する。 In the first embodiment, the axis of the first opening 211 of the connecting portion 240 is arranged along the insertion direction of the injection needle 140, but it can be configured as follows. In this modification, the medical instrument set includes a medical device 100, an auxiliary tool 200e, and an instrument 300. Since the medical device 100 and the instrument 300 are the same as those in the first embodiment, their description will be omitted.

補助具200eの筒部210eは、図10、図11に示すようにストッパー220と、弁部材230と、接続部240eと、を備える。ストッパー220と弁部材230は第1実施形態と同様であるため、説明を省略する。 The cylindrical portion 210e of the auxiliary tool 200e includes a stopper 220, a valve member 230, and a connecting portion 240e, as shown in FIGS. 10 and 11. Since the stopper 220 and the valve member 230 are the same as those in the first embodiment, their explanation will be omitted.

接続部240eは、図10、図11に示すように第1開口部211eの延在する軸方向が注入針140を第1半閉空間213eに挿入する方向(図10、図11の縦方向)と交差する方向(図10、図11における横方向)となるように構成している。 As shown in FIGS. 10 and 11, the connecting portion 240e has an axial direction in which the first opening 211e extends in the direction in which the injection needle 140 is inserted into the first semi-closed space 213e (vertical direction in FIGS. 10 and 11). (horizontal direction in FIGS. 10 and 11).

本変形例に係る医療器具セットの使用例は、器具300の接続部材340の補助具200eに対する取り付け方向が異なる程度であり、その他は第1実施形態と同様であるため、説明を省略する。 The usage example of the medical instrument set according to this modification is the same as the first embodiment except that the direction in which the connecting member 340 of the instrument 300 is attached to the auxiliary tool 200e is different, so a description thereof will be omitted.

以上説明したように本変形例では接続部240eにおいて第1開口部211eが筒部210eの第1半閉空間213eに対して注入針140が挿入する方向と交差する方向を向くように構成している。このように構成することによって、注入針140の先端部を筒部210eの内部空間に配置してプライミングを行った際に薬剤が第1開口部211eから接続部材340を流通して器具300に流通することを低減させることができる。 As explained above, in this modification, the first opening 211e of the connecting portion 240e is configured to face the first semi-closed space 213e of the cylinder portion 210e in a direction that intersects with the direction in which the injection needle 140 is inserted. There is. With this configuration, when priming is performed with the distal end of the injection needle 140 disposed in the internal space of the cylindrical portion 210e, the drug flows through the connecting member 340 from the first opening 211e to the device 300. It is possible to reduce the number of

また、接続部材340が接続される接続部240の軸線を本変形例のように注入針140の挿通方向と交差するようにし、かつ、接続部240eに変形例4に係る膜状部材を設ければ、注入針140が膜状部材270を突き破らないようにすることができる。また、接続部240eの軸線が注入針140の挿入方向と同軸上にないことによって、接続部材340が注入針140によって突き破られる可能性を低減することができる。 Further, the axis of the connecting portion 240 to which the connecting member 340 is connected is made to intersect with the insertion direction of the injection needle 140 as in this modification, and the membrane member according to Modification 4 is provided in the connecting portion 240e. For example, the injection needle 140 can be prevented from piercing the membrane member 270. Further, since the axis of the connecting portion 240e is not coaxial with the insertion direction of the injection needle 140, the possibility that the connecting member 340 is pierced by the injection needle 140 can be reduced.

(第2実施形態)
図12は第2実施形態に係る医療器具セットを構成する補助具200fの中心軸に沿う断面図、図13は図12の断面図において弁部材230に注入針140を挿通させた状態を示す図である。
(Second embodiment)
FIG. 12 is a sectional view taken along the central axis of an auxiliary tool 200f constituting a medical instrument set according to the second embodiment, and FIG. 13 is a sectional view showing a state in which the injection needle 140 is inserted through the valve member 230 in the sectional view of FIG. 12. It is.

第1実施形態では医療デバイス100が注入針140を備えると説明したが、医療デバイスは注入針以外の針管を備えるように構成することもできる。 In the first embodiment, it has been described that the medical device 100 includes the injection needle 140, but the medical device can also be configured to include a needle tube other than the injection needle.

本実施形態に係る医療器具セットは、医療デバイス100fと、補助具200fと、器具300と、を備える。なお、器具300は第1実施形態と同様であるため、説明を省略する。医療デバイス100fは、筒部110と、押圧部材120と、シール部材130と、針部140f(針管に相当)と、を備える。筒部110、押圧部材120、およびシール部材130は第1実施形態と同様であり、針部140fが第1実施形態と異なるため、同様である構成の説明を省略する。 The medical instrument set according to this embodiment includes a medical device 100f, an auxiliary tool 200f, and an instrument 300. Note that since the instrument 300 is the same as that in the first embodiment, a description thereof will be omitted. The medical device 100f includes a cylinder portion 110, a pressing member 120, a sealing member 130, and a needle portion 140f (corresponding to a needle tube). The cylinder portion 110, the pressing member 120, and the sealing member 130 are the same as those in the first embodiment, and the needle portion 140f is different from the first embodiment, so a description of the similar structures will be omitted.

針部140fは、図13に示すように注入針141fと、外筒針142fと、を備える。 The needle portion 140f includes an injection needle 141f and an outer cylinder needle 142f, as shown in FIG. 13.

外筒針142fは、注入針141fの挿入方向と交差する外形寸法を注入針141fより大きく構成している。外筒針142fは、注入針141fを出し入れできるように中空に構成している。注入針141fは、第1実施形態の注入針140と同様に薬剤を流通可能な内腔を設けるように構成している。外筒針142fは、先端の角部を注入針141fに比べて鋭利でないように構成できる。 The external cylindrical needle 142f has an outer dimension larger than that of the injection needle 141f in a direction intersecting the insertion direction of the injection needle 141f. The outer cylindrical needle 142f is hollow so that the injection needle 141f can be put in and taken out. The injection needle 141f is configured to have a lumen through which a drug can flow, similar to the injection needle 140 of the first embodiment. The outer cylindrical needle 142f can have a corner portion at its tip that is less sharp than that of the injection needle 141f.

外筒針142fは、注入針141fとの軸方向における相対的な位置を変化可能に構成している。 The outer cylinder needle 142f is configured to be able to change its relative position in the axial direction with respect to the injection needle 141f.

補助具200fの筒部210fは、図12、図13に示すようにストッパー220と、弁部材230と、接続部240と、保持部材280と、を有する。ストッパー220、弁部材230、接続部240は第1実施形態と同様であるため、詳細な説明を省略する。本実施形態においてストッパー220の段付き形状は外筒針142fの先端部を突き当てる突き当て部として利用可能に構成している。 The cylindrical portion 210f of the auxiliary tool 200f includes a stopper 220, a valve member 230, a connecting portion 240, and a holding member 280, as shown in FIGS. 12 and 13. Since the stopper 220, the valve member 230, and the connecting portion 240 are the same as those in the first embodiment, detailed description thereof will be omitted. In this embodiment, the stepped shape of the stopper 220 is configured to be usable as an abutment against which the tip of the outer cylinder needle 142f abuts.

保持部材280は、図13に示すように注入針141f以外の針管である外筒針142fを保持するように構成している。保持部材280は、弁部材230と同様の材料によって構成でき、切り込みを備える。 The holding member 280 is configured to hold the outer cylinder needle 142f, which is a needle tube other than the injection needle 141f, as shown in FIG. Retaining member 280 may be constructed from the same material as valve member 230 and includes a notch.

針部140fの挿入方向における第2半閉空間214の寸法d2(図13における第2半閉空間214の縦方向の寸法)は、保持部材280が外筒針142fを保持した状態に変形できる程度に構成できる。 The dimension d2 of the second semi-closed space 214 in the insertion direction of the needle portion 140f (the vertical dimension of the second semi-closed space 214 in FIG. 13) is set to such an extent that the holding member 280 can be deformed into a state holding the outer cylindrical needle 142f. Can be configured.

次に第2実施形態に係る医療器具セットの使用例について説明する。まず、術者は医療デバイス100fの注入針141fを外筒針142fに収納した状態で針部140fを保持部材280の切り込みに差し込み、外筒針142fをストッパー220の段付き形状に当接させる。そして、術者は注入針141fの先端部を外筒針142fから突出させて、注入針141fの先端部を筒部210fの第1半閉空間213に配置する。 Next, a usage example of the medical instrument set according to the second embodiment will be described. First, the operator inserts the needle portion 140f into the notch of the holding member 280 with the injection needle 141f of the medical device 100f housed in the outer barrel needle 142f, and brings the outer barrel needle 142f into contact with the stepped shape of the stopper 220. Then, the operator causes the distal end of the injection needle 141f to protrude from the outer cylindrical needle 142f, and places the distal end of the injection needle 141f in the first semi-closed space 213 of the cylindrical portion 210f.

この際に、外筒針142fの先端部をストッパー220の段付き形状に突き当てるように操作することによって、注入針141fの先端部を筒部210の第1半閉空間213に配置しやすくできる。このとき、弁部材230は注入針141fを保持し、保持部材280は外筒針142fを保持する。 At this time, the tip of the injection needle 141f can be easily placed in the first semi-closed space 213 of the cylindrical portion 210 by manipulating the tip of the outer cylindrical needle 142f to abut against the stepped shape of the stopper 220. At this time, the valve member 230 holds the injection needle 141f, and the holding member 280 holds the outer cylinder needle 142f.

次に、術者は器具300の接続部材340を補助具200fの接続部240に接続する。そして、器具300の筒部310に対して押圧部材320を軸方向に移動させ、補助具200fの第1半閉空間213を負圧にする。これにより、筒部110の薬剤が注入針141fの内腔に充填される(プライミング)。 Next, the operator connects the connecting member 340 of the instrument 300 to the connecting part 240 of the auxiliary tool 200f. Then, the pressing member 320 is moved in the axial direction with respect to the cylindrical portion 310 of the instrument 300, and the first semi-closed space 213 of the auxiliary tool 200f is made to have a negative pressure. Thereby, the medicine in the cylinder portion 110 is filled into the inner cavity of the injection needle 141f (priming).

次に、術者は針部140fを筒部210fの第1半閉空間213から抜去する。次に、術者は患者の腹部周辺に小切開部を形成する。そして、術者は、注入針141fの先端部を外筒針142fの内部に収容した状態で外筒針142fを経皮的に穿刺を行い、腫瘍手前までアクセスする。 Next, the operator removes the needle portion 140f from the first semi-closed space 213 of the cylindrical portion 210f. Next, the surgeon makes a small incision around the patient's abdomen. Then, the operator percutaneously punctures the outer tube needle 142f with the distal end of the injection needle 141f housed inside the outer tube needle 142f, and accesses to the front side of the tumor.

注入針141fを外筒針142fの内部に収容した状態で針部140fを生体管腔で移動させることにより、注入針141fが意図せず、生体管腔を傷つけることを防止できる。 By moving the needle portion 140f in the living body lumen with the injection needle 141f housed inside the outer cylinder needle 142f, it is possible to prevent the injection needle 141f from unintentionally damaging the living body lumen.

外筒針142fの先端が腫瘍付近まで到達したら、術者は注入針141fを外筒針142fから先端側に突出させる。そして、押圧部材120を筒部110に対して相対的に移動させて薬剤を注入針141fから送出し、患者に投与する。 When the tip of the outer tube needle 142f reaches the vicinity of the tumor, the operator causes the injection needle 141f to protrude from the outer tube needle 142f toward the tip side. Then, the pressing member 120 is moved relative to the cylindrical portion 110, and the medicine is sent out from the injection needle 141f and administered to the patient.

以上説明したように本実施形態に係る医療器具セットの補助具200fは、注入針141f以外の外筒針142fを保持可能な保持部材280を備えるように構成している。このように構成することによって、外筒針142fのように薬剤の送出を行う注入針以外の用途の針を備えた様々な種類の医療デバイスのプライミングを補助具によって行うことができる。 As explained above, the auxiliary tool 200f of the medical instrument set according to this embodiment is configured to include the holding member 280 that can hold the outer cylinder needle 142f other than the injection needle 141f. With this configuration, various types of medical devices equipped with needles for purposes other than injection needles for delivering drugs, such as the external cylindrical needle 142f, can be primed using the auxiliary tool.

また、針部140fは注入針141fの挿入方向と交差する外形寸法を注入針141fより大きく、注入針141fを出し入れ可能な外筒針142fを備える。ストッパー220の段付き形状は外筒針142fの先端部を突き当て可能な突き当て部として機能できるように構成している。このように構成することによって注入針141fを第1半閉空間213に挿入しやすくすることができる。 Further, the needle portion 140f has an external dimension larger than the injection needle 141f in a direction intersecting the insertion direction of the injection needle 141f, and includes an outer cylindrical needle 142f into which the injection needle 141f can be inserted and removed. The stepped shape of the stopper 220 is configured so that it can function as an abutment against which the tip of the outer cylindrical needle 142f can abut. With this configuration, the injection needle 141f can be easily inserted into the first semi-closed space 213.

(第3実施形態)
図14は第3実施形態に係る医療器具セットを構成する補助具200gの中心軸に沿う断面図、図15は補助具200gの第2半閉空間214gに注入針140の先端部を配置した状態を示す図である。
(Third embodiment)
FIG. 14 is a sectional view taken along the central axis of an auxiliary tool 200g constituting a medical instrument set according to the third embodiment, and FIG. 15 is a state in which the tip of the injection needle 140 is placed in the second semi-closed space 214g of the auxiliary tool 200g. FIG.

第1実施形態において注入針140はプライミングの際に筒部210の第1半閉空間213において注入針140の先端から薬剤が出たことを目視にて確認すると説明した。ただし、注入針140はプライミング後等に洗浄するように構成してもよい。 In the first embodiment, it has been explained that during priming of the injection needle 140, it is visually confirmed that the drug has come out from the tip of the injection needle 140 in the first semi-closed space 213 of the cylinder portion 210. However, the injection needle 140 may be configured to be cleaned after priming or the like.

本実施形態に係る医療器具セットは、医療デバイス100と、補助具200gと、器具300と、を有する。医療デバイス100と器具300は第1実施形態と同様であるため、説明を省略する。 The medical instrument set according to this embodiment includes a medical device 100, an auxiliary tool 200g, and an instrument 300. Since the medical device 100 and the instrument 300 are the same as those in the first embodiment, their description will be omitted.

補助具200gの筒部210gは、図14に示すようにストッパー220と、弁部材230、232と、接続部240と、接続部245(第2接続部に相当)と、接続部246(第3接続部に相当)と、を備える。ストッパー220、弁部材230、および接続部240は第1実施形態と同様であるため、説明を省略する。 As shown in FIG. 14, the cylindrical portion 210g of the auxiliary tool 200g has a stopper 220, valve members 230 and 232, a connecting portion 240, a connecting portion 245 (corresponding to the second connecting portion), and a connecting portion 246 (the third connecting portion). (equivalent to the connection part) and. Since the stopper 220, the valve member 230, and the connecting portion 240 are the same as those in the first embodiment, their explanations will be omitted.

筒部210gは、第2開口部212に隣接する第2半閉空間214gにおいて生理食塩水等の流体を流通可能に構成している。 The cylindrical portion 210g is configured to allow fluid such as physiological saline to flow in the second semi-closed space 214g adjacent to the second opening 212.

筒部210gは、接続部240に加えて接続部245、246を設けるように構成している。接続部245、246は、筒部210gの内部空間である第2半閉空間214gと外部とを連通可能に設けられ、筒部210gの第2半閉空間214gに流体を流入または流出可能に構成している。接続部245、246は、一例として接続部245において第2半閉空間214gへ流体を流入させる器具との接続を可能にし、接続部246において第2半閉空間214gからの流体を流出させる器具との接続を可能に構成できる。 The cylindrical portion 210g is configured to include connection portions 245 and 246 in addition to the connection portion 240. The connecting portions 245 and 246 are provided to allow communication between the second semi-closed space 214g, which is the internal space of the cylindrical portion 210g, and the outside, and are configured to allow fluid to flow into or out of the second semi-closed space 214g of the cylindrical portion 210g. are doing. For example, the connecting portions 245 and 246 can be connected to a device that allows fluid to flow into the second semi-closed space 214g at the connecting portion 245, and can be connected to a device that allows fluid to flow out from the second semi-closed space 214g at the connecting portion 246. can be configured to allow connections.

接続部245、246には接続部材340と同様に流体を流通可能なシリンジやチューブ等の中空部材を取り付けることができる。なお、流入部と流出部の数は例示であって、第2半閉空間214gに流体を流入および流出できれば、流入部と流出部の具体的な数や形状は図14、図15に限定されない。 Similar to the connecting member 340, a hollow member such as a syringe or a tube through which fluid can flow can be attached to the connecting parts 245 and 246. Note that the number of inflow parts and outflow parts is an example, and the specific number and shape of the inflow part and outflow part are not limited to those shown in FIGS. 14 and 15 as long as fluid can flow in and out of the second semi-closed space 214g. .

弁部材232は、注入針140を保持するとともに第2半閉空間214gに流体を流通させた際に第2開口部212から流体が漏れ出ることを防止する。弁部材232は、筒部210gにおいて弁部材230よりも第2開口部212に接近して設けている。 The valve member 232 holds the injection needle 140 and prevents fluid from leaking from the second opening 212 when the fluid is passed through the second semi-closed space 214g. The valve member 232 is provided closer to the second opening 212 than the valve member 230 in the cylindrical portion 210g.

弁部材232は、弁部材230と同様の材料によって構成することができ、略中央部には切り込み231と同様の切り込み233を設けることができる。ただし、注入針140の先端部を筒部210gの第2半閉空間214gに挿入できれば、弁部材230と同様に弁部材232には切り込み233を設けなくてもよい。 The valve member 232 can be made of the same material as the valve member 230, and can be provided with a notch 233 similar to the notch 231 approximately in the center. However, as long as the tip of the injection needle 140 can be inserted into the second semi-closed space 214g of the cylindrical portion 210g, the notch 233 need not be provided in the valve member 232 like the valve member 230.

(使用例)
次に本実施形態に係る医療器具セットの使用例について説明する。
(Example of use)
Next, an example of use of the medical instrument set according to this embodiment will be described.

まず、術者は医療デバイス100の注入針140を弁部材230、232の切り込み231、233に差し込み、注入針140の先端部を筒部210gの第1半閉空間213gに配置する。 First, the operator inserts the injection needle 140 of the medical device 100 into the notches 231 and 233 of the valve members 230 and 232, and places the tip of the injection needle 140 in the first semi-closed space 213g of the cylindrical portion 210g.

接続部材340の接続部240への接続、および押圧部材320による筒部210gの第1半閉空間213gを負圧にしてプライミングを行う操作は第1実施形態と同様であるため、説明を省略する。 The connection of the connecting member 340 to the connecting portion 240 and the operation of priming by applying negative pressure to the first semi-closed space 213g of the cylindrical portion 210g by the pressing member 320 are the same as in the first embodiment, and therefore the explanation will be omitted. .

次に、術者は注入針140の先端部を第1半閉空間213gから隣接する第2半閉空間214gに移動させる。そして、術者は接続部245および接続部246に中空部材を接続した状態において生理食塩水等の流体を第2半閉空間214gに流通させる。生理食塩水が接続部245から第2半閉空間214gを通過して接続部246に流れる際に注入針140の先端部の外表面等に付着した薬剤やその他の汚れ等を除去することができる。 Next, the operator moves the tip of the injection needle 140 from the first semi-closed space 213g to the adjacent second semi-closed space 214g. Then, while the hollow member is connected to the connecting portion 245 and the connecting portion 246, the operator causes fluid such as physiological saline to flow into the second semi-closed space 214g. When the physiological saline flows from the connection part 245 through the second semi-closed space 214g to the connection part 246, it is possible to remove drugs and other dirt attached to the outer surface of the tip of the injection needle 140. .

洗浄を行った注入針140の先端部は外表面を清潔に拭き取る等する。以降の手技は第1実施形態と同様であるため、説明を省略する。 The outer surface of the cleaned tip of the injection needle 140 is wiped clean. The subsequent procedures are the same as those in the first embodiment, so their explanation will be omitted.

以上のように本実施形態では筒部210gが接続部240に加えて接続部245、246を備える。接続部245、246は外部と内部空間である第2半閉空間214gとを連通可能に設けられ、接続部245は第2半閉空間214gに流体を流入可能な器具との接続を可能に構成している。接続部246は、第2半閉空間214gから流体を流出させる器具との接続を可能に構成している。 As described above, in this embodiment, the cylindrical portion 210g includes the connecting portions 245 and 246 in addition to the connecting portion 240. The connecting portions 245 and 246 are provided to allow communication between the outside and the second semi-closed space 214g, which is an internal space, and the connecting portion 245 is configured to enable connection with a device that can flow fluid into the second semi-closed space 214g. are doing. The connecting portion 246 is configured to be connectable to a device that causes fluid to flow out from the second semi-closed space 214g.

このように構成することによって、プライミング後等に注入針140の先端部に付着した薬剤や他の汚れ等を除去することができる。なお、本実施形態において接続部245、246は第2半閉空間214gに連通し、プライミングを行う空間と洗浄を行う空間が別になるように構成した。ただし、接続部245、246はプライミングを行う第1半閉空間に連通し、プライミングと洗浄を同じ空間で行うように構成してもよい。 With this configuration, it is possible to remove drugs, other dirt, etc. that have adhered to the tip of the injection needle 140 after priming or the like. In this embodiment, the connecting portions 245 and 246 communicate with the second semi-closed space 214g, and the space for priming and the space for cleaning are configured to be separate. However, the connecting portions 245 and 246 may be configured to communicate with a first semi-closed space where priming is performed, so that priming and cleaning are performed in the same space.

(第4実施形態)
図16は第4実施形態に係る医療器具セットを構成する補助具200hの中心軸に沿う断面図、図17は筒部210hの内部空間である第2半閉空間214hに注入針140の先端部を配置した状態を示す図である。
(Fourth embodiment)
FIG. 16 is a sectional view taken along the central axis of an auxiliary tool 200h constituting a medical instrument set according to the fourth embodiment, and FIG. 17 shows the tip of an injection needle 140 in a second semi-closed space 214h, which is an internal space of a cylindrical portion 210h. It is a figure showing the state where it has been arranged.

補助具200を構成する筒部210は、第1実施形態において一部材で構成すると説明したが、筒部は複数の部材を含むように構成してもよい。なお、医療器具セットを構成する医療デバイス100および器具300は第1実施形態と同様であるため、説明を省略する。 Although the cylindrical portion 210 constituting the auxiliary tool 200 was described as being composed of one member in the first embodiment, the cylindrical portion may be configured to include a plurality of members. Note that the medical device 100 and instrument 300 constituting the medical instrument set are the same as those in the first embodiment, so their description will be omitted.

補助具200hの筒部210hは、図16に示すようにストッパー220と、壁部222と、弁部材230と、接続部240と、保持部材280hと、キャップ部材290と、を備える。ストッパー220、弁部材230、および接続部240は第1実施形態と同様であるため、説明を省略する。 The cylindrical portion 210h of the auxiliary tool 200h includes a stopper 220, a wall portion 222, a valve member 230, a connecting portion 240, a holding member 280h, and a cap member 290, as shown in FIG. Since the stopper 220, the valve member 230, and the connecting portion 240 are the same as those in the first embodiment, their explanations will be omitted.

また、筒部210hは、図16等に示すように第1筒部215hと、第2筒部216hと、を備える。第1筒部215hは、筒部210hの内部空間の一部でプライミングが可能な第1半閉空間213hを構成し、接続部240を設けるとともに第1半閉空間213hに弁部材230を配置している。 Further, the cylindrical portion 210h includes a first cylindrical portion 215h and a second cylindrical portion 216h, as shown in FIG. 16 and the like. The first cylindrical portion 215h constitutes a first semi-closed space 213h in which priming is possible in a part of the internal space of the cylindrical portion 210h, and is provided with a connecting portion 240 and a valve member 230 disposed in the first semi-closed space 213h. ing.

第1筒部215hは、軸方向における第2筒部216hとの境界に第1半閉空間213hの断面が周囲より小さくなるように構成した壁部222を設けている。壁部222には注入針140の先端部を挿通可能な穴部を設けている。 The first cylindrical portion 215h is provided with a wall portion 222 configured such that the cross section of the first semi-closed space 213h is smaller than the surrounding area at the boundary with the second cylindrical portion 216h in the axial direction. The wall portion 222 is provided with a hole through which the tip of the injection needle 140 can be inserted.

第2筒部216hは、筒部210hの内部空間の一部である第2半閉空間214hを構成するとともに、ストッパー220、保持部材280h、キャップ部材290を設置するように構成している。第2筒部216hは、本実施形態において注入針140の挿入方向からみて保持部材280h、ストッパー220、およびキャップ部材290の順に配置するように構成している。 The second cylindrical portion 216h constitutes a second semi-closed space 214h that is a part of the internal space of the cylindrical portion 210h, and is configured to have a stopper 220, a holding member 280h, and a cap member 290 installed therein. In this embodiment, the second cylindrical portion 216h is configured such that the holding member 280h, the stopper 220, and the cap member 290 are arranged in this order when viewed from the insertion direction of the injection needle 140.

第1筒部215hと第2筒部216hの接続および分離の態様は特に限定されないが、第1筒部215hおよび第2筒部216hの一方の外表面にめねじ形状を設け、他方にめねじ形状と螺合可能なおねじ形状を設けること等によって構成できる。また、第1筒部215hと第2筒部216hとは、篏合により両者を接続するように構成してもよい。 The manner of connection and separation between the first cylindrical part 215h and the second cylindrical part 216h is not particularly limited, but the outer surface of one of the first cylindrical part 215h and the second cylindrical part 216h is provided with a female thread shape, and the other is provided with a female thread shape. It can be configured by providing a male thread shape that can be screwed into the shape. Further, the first cylindrical portion 215h and the second cylindrical portion 216h may be configured to be connected by fitting.

保持部材280hは、本実施形態において弁部材230およびキャップ部材290よりも基端側において注入針140を保持するように構成している。保持部材280hは、弁部材230と同様の材料によって構成できるとともに切り込み231と同様の切り込みを設けるように構成している。 In this embodiment, the holding member 280h is configured to hold the injection needle 140 on the proximal side of the valve member 230 and the cap member 290. The holding member 280h can be made of the same material as the valve member 230 and is configured to have a cut similar to the cut 231.

キャップ部材290は、第2筒部216hに設けられ、第1筒部215hとの境界部分付近において注入針140を挿通可能に構成している。キャップ部材290は、弁部材230と同様に注入針140を挿通しやすいように切り込み231と同様の切り込みを設けることができる。 The cap member 290 is provided on the second cylindrical portion 216h, and is configured such that the injection needle 140 can be inserted therethrough near the boundary with the first cylindrical portion 215h. Like the valve member 230, the cap member 290 can be provided with a cut similar to the cut 231 so that the injection needle 140 can be easily inserted therethrough.

キャップ部材290は、注入針140の先端部をキャップ部材290から抜き取り、注入針140の先端部を第2半閉空間214hに配置した状態において注入針140の挿通箇所を閉じて保持部材280hとともに注入針140の先端部を包囲することができる。 The cap member 290 removes the tip of the injection needle 140 from the cap member 290, closes the insertion point of the injection needle 140 with the tip of the injection needle 140 disposed in the second semi-closed space 214h, and performs injection together with the holding member 280h. The tip of needle 140 can be enclosed.

このように、保持部材280hとキャップ部材290を設けた第2筒部216hは、第2筒部216hを第1筒部215hから分離させた際に注入針140の先端部を包囲するキャップとして機能させることができる。キャップ部材290は弁部材230と同様の弾性部材を含むことができる。 In this way, the second cylindrical part 216h provided with the holding member 280h and the cap member 290 functions as a cap that surrounds the tip of the injection needle 140 when the second cylindrical part 216h is separated from the first cylindrical part 215h. can be done. Cap member 290 can include a resilient member similar to valve member 230.

次に本実施形態に係る医療器具セットの使用例について説明する。 Next, an example of use of the medical instrument set according to this embodiment will be described.

術者は、第1筒部215hと第2筒部216hを一体にした状態で医療デバイス100の注入針140の先端部を補助具200hの保持部材280h、キャップ部材290および弁部材230に挿通させて注入針140の先端部を第1半閉空間213hに配置する。 The operator inserts the distal end of the injection needle 140 of the medical device 100 through the holding member 280h, the cap member 290, and the valve member 230 of the auxiliary tool 200h with the first cylindrical portion 215h and the second cylindrical portion 216h integrated. The distal end of the injection needle 140 is placed in the first semi-closed space 213h.

接続部材340の接続部240への接続、押圧部材320による第1半閉空間213hを負圧にして筒部110の薬剤を注入針140の内腔に移動させる操作、および患者の該当部位への薬剤の投与は第1実施形態と同様である。そのため、説明を省略する。 The connection of the connection member 340 to the connection part 240, the operation of applying negative pressure to the first semi-closed space 213h by the pressing member 320 and moving the drug in the cylinder part 110 to the inner cavity of the injection needle 140, and the operation of moving the drug in the lumen of the injection needle 140 to the corresponding region of the patient. Administration of drugs is the same as in the first embodiment. Therefore, the explanation will be omitted.

患者の該当部位へ薬剤を投与したら、術者は注入針140を生体管腔から抜去する。次に、術者は第2筒部216hを第1筒部215hから分離させる。次に、術者は、薬剤の投与を終えた注入針140の先端部を第2筒部216hの保持部材280hに挿通させて第2半閉空間214hに位置させる。これにより、注入針140の先端部が第2筒部216hによって包囲される。なお、第2筒部216hによる注入針140の先端部の包囲、すなわち第2筒部216hのキャップとしての使用は、薬剤を投与する前に実施してもよい。このように使用することによって、プライミング後の移送などの際に注入針140からの薬剤の漏れを防止することができる。 After administering the drug to the relevant site of the patient, the operator removes the injection needle 140 from the body lumen. Next, the operator separates the second cylindrical portion 216h from the first cylindrical portion 215h. Next, the operator inserts the distal end of the injection needle 140, which has finished administering the drug, through the holding member 280h of the second cylindrical portion 216h, and positions it in the second semi-closed space 214h. As a result, the tip of the injection needle 140 is surrounded by the second cylindrical portion 216h. Note that the second cylindrical portion 216h may surround the tip of the injection needle 140, that is, the second cylindrical portion 216h may be used as a cap before administering the drug. By using it in this manner, it is possible to prevent the medicine from leaking from the injection needle 140 during transfer after priming.

以上説明したように本実施形態の医療器具セットを構成する補助具200hの筒部210hは第1筒部215hと第2筒部216hとを備える。第1筒部215hと第2筒部216hは筒部210hの内部空間の一部を構成する。第1筒部215hは、接続部240および弁部材230を設けるように構成している。第2筒部216は、保持部材280hを備える。 As described above, the cylindrical portion 210h of the auxiliary tool 200h that constitutes the medical instrument set of this embodiment includes a first cylindrical portion 215h and a second cylindrical portion 216h. The first cylindrical portion 215h and the second cylindrical portion 216h constitute a part of the internal space of the cylindrical portion 210h. The first cylindrical portion 215h is configured to include a connecting portion 240 and a valve member 230. The second cylindrical portion 216 includes a holding member 280h.

第2筒部216hは、第1筒部215hとの境界部分において注入針140を挿通可能であるとともに注入針140を抜き取った状態で注入針140の挿通箇所を閉じることが可能なキャップ部材290を備えるように構成している。 The second cylindrical part 216h has a cap member 290 through which the injection needle 140 can be inserted at the boundary with the first cylindrical part 215h and which can close the insertion point of the injection needle 140 with the injection needle 140 removed. It is configured to be prepared.

このように構成することによって、注入針140を用いて患者に薬剤を投与する前後に注入針140に付着した薬剤が意図せず周囲に付着すること等をより一層防止することができる。 With this configuration, it is possible to further prevent the drug attached to the injection needle 140 from unintentionally adhering to the surrounding area before and after administering the drug to the patient using the injection needle 140.

なお、本発明は上述した実施形態にのみ限定されず、特許請求の範囲において種々の変更が可能である。 Note that the present invention is not limited to the above-described embodiments, and various changes can be made within the scope of the claims.

1 医療器具セット、
100 医療デバイス、
140、141f 注入針、
140f 針部(針管)、
142f 外筒針、
200、200a、200b、200c、200d、200e、200f、200g、200h 補助具(医療器具)、
210、210a、210b、210c、210d、210e、210f、210g、210h 筒部、
211 第1開口部、
212 第2開口部、
213 第1半閉空間、
214 第2半閉空間、
215h 第1筒部、
216h 第2筒部、
220 ストッパー(挿通壁、突き当て部)、
221 第3開口部(縮小部)、
230 弁部材、
231 切り込み、
240 接続部(第1接続部)、
245 接続部(第2接続部)、
246 接続部(第3接続部)、
250 吸収部材、
260 保護部材、
270 膜状部材、
280 保持部材、
290 キャップ部材。
1 medical equipment set,
100 medical devices,
140, 141f injection needle,
140f needle part (needle tube),
142f external cylinder needle,
200, 200a, 200b, 200c, 200d, 200e, 200f, 200g, 200h Auxiliary equipment (medical equipment),
210, 210a, 210b, 210c, 210d, 210e, 210f, 210g, 210h cylinder part,
211 first opening,
212 second opening,
213 first semi-closed space,
214 second semi-closed space,
215h first cylinder part,
216h second cylinder part,
220 Stopper (insertion wall, abutment part),
221 third opening (reduced part),
230 valve member,
231 incision,
240 connection part (first connection part),
245 connection part (second connection part),
246 connection part (third connection part),
250 absorption member,
260 Protective member,
270 Membrane member,
280 holding member,
290 Cap member.

Claims (12)

薬剤が流通可能な中空の注入針の先端部を包囲可能な内部空間を備える筒部を有し、
前記筒部には、前記内部空間を外部と連通する第1開口部と第2開口部とが設けられ、
前記筒部は、前記第1開口部に設けられ、前記内部空間を負圧にする器具との接続が可能な第1接続部と、
前記内部空間において前記第2開口部に隣接して設けられ、前記注入針が挿通可能であって、前記注入針を挿通させた状態において前記内部空間における前記第2開口部の側から前記薬剤の漏出を防止する弁部材と、を備える医療器具。
It has a cylindrical part with an internal space that can surround the tip of a hollow injection needle through which the medicine can flow,
The cylindrical portion is provided with a first opening and a second opening that communicate the internal space with the outside,
The cylindrical portion includes a first connecting portion that is provided in the first opening and that can be connected to a device that makes the internal space negative pressure;
The injection needle is provided adjacent to the second opening in the internal space, through which the injection needle can be inserted, and when the injection needle is inserted, the drug is injected from the side of the second opening in the internal space. A medical device comprising: a valve member that prevents leakage.
前記弁部材は、前記注入針を挿通させる切り込みを備える請求項1に記載の医療器具。 The medical device according to claim 1, wherein the valve member includes a notch through which the injection needle is inserted. 前記第1接続部は、前記第1開口部が前記内部空間における前記注入針の挿入方向と交差する方向を向いて開口するように設けられている請求項1または2に記載の医療器具。 3. The medical device according to claim 1, wherein the first connecting portion is provided so that the first opening opens in a direction intersecting the insertion direction of the injection needle in the internal space. 前記筒部は、前記内部空間に設けられ、前記注入針の外表面に付着した前記薬剤を吸収可能な吸収部材をさらに備える請求項1~3のいずれか1項に記載の医療器具。 4. The medical device according to claim 1, wherein the cylindrical portion further includes an absorbing member that is provided in the internal space and that is capable of absorbing the drug attached to the outer surface of the injection needle. 前記筒部は、前記内部空間における前記第1接続部と前記弁部材の間に設けられ、前記注入針の先端部を保護する保護部材をさらに備える請求項1~4のいずれか1項に記載の医療器具。 The cylindrical portion further includes a protection member that is provided between the first connection portion and the valve member in the internal space and protects the tip of the injection needle. medical equipment. 前記筒部は、前記第1開口部に設けられ、前記内部空間と前記外部の間で気体を流通させ、かつ、液体の流通を阻害する膜状部材をさらに備える請求項1~5のいずれか1項に記載の医療器具。 Any one of claims 1 to 5, wherein the cylindrical portion further includes a film-like member provided in the first opening to allow gas to flow between the internal space and the outside and to inhibit liquid flow. Medical device according to item 1. 筒部は、
前記外部と前記内部空間とを連通可能に設けられ、前記内部空間に流体を流入させる器具と接続可能な第2接続部と、
前記外部と前記内部空間とを連通可能に設けられ、前記内部空間から流体を流出させる器具と接続可能な第3接続部と、をさらに備える請求項1~6のいずれか1項に記載の医療器具。
The cylinder part is
a second connecting portion that is provided to allow communication between the outside and the internal space and connectable to a device that causes fluid to flow into the internal space;
The medical device according to any one of claims 1 to 6, further comprising: a third connecting portion that is provided to allow communication between the outside and the internal space and is connectable to a device that causes fluid to flow out of the internal space. utensils.
前記筒部は、前記注入針および前記注入針以外の針管のいずれか一方を保持可能な保持部材をさらに備える請求項1~7のいずれか1項に記載の医療器具。 The medical device according to any one of claims 1 to 7, wherein the cylindrical portion further includes a holding member capable of holding either the injection needle or a needle tube other than the injection needle. 前記筒部は、前記内部空間の一部を構成し、前記第1接続部および前記弁部材を設けた第1筒部と、前記第1筒部とともに前記内部空間の一部を構成し、前記保持部材を備える第2筒部と、を備え、
前記第2筒部は、前記第1筒部との境界部分において前記注入針を挿通可能であるとともに前記注入針を抜き取った状態で前記注入針の挿通箇所を閉じることが可能なキャップ部材を備える請求項8に記載の医療器具。
The cylindrical part constitutes a part of the internal space, and together with the first cylindrical part provided with the first connecting part and the valve member, and the first cylindrical part, the cylindrical part constitutes a part of the internal space, and a second cylindrical portion including a holding member;
The second cylindrical part includes a cap member through which the injection needle can be inserted at a boundary with the first cylindrical part and which can close the insertion point of the injection needle when the injection needle is removed. The medical device according to claim 8.
前記筒部は、前記内部空間に設けられ、前記注入針を挿通させ、前記注入針以外の針管の挿通を妨げる挿通壁をさらに備え、
前記挿通壁は、前記注入針の前記内部空間への挿入方向において前記挿通壁の前記挿入方向に交差する断面の面積が縮小する縮小部を備える請求項1~9のいずれか1項に記載の医療器具。
The cylindrical portion further includes an insertion wall provided in the internal space, through which the injection needle is inserted, and which prevents insertion of needle tubes other than the injection needle,
10. The insertion wall includes a reduced portion in which the area of a cross section of the insertion wall that intersects with the insertion direction is reduced in the insertion direction of the injection needle into the internal space. medical equipment.
前記針管は、前記注入針の挿入方向と交差する外形寸法が前記注入針より大きく、前記注入針を出し入れ可能な外筒針を備え、
前記挿通壁は、前記外筒針の先端部を突き当て可能な突き当て部を備える請求項10に記載の医療器具。
The needle tube includes an outer cylindrical needle that has a larger external dimension than the injection needle in a direction intersecting the insertion direction of the injection needle, and into which the injection needle can be inserted and removed;
The medical device according to claim 10, wherein the insertion wall includes an abutting portion against which the tip of the outer cylindrical needle can abut.
薬剤が流通可能な中空の注入針を含む医療デバイスと、
前記注入針の先端部を包囲可能な内部空間を備える筒部を有し、前記筒部には前記内部空間を外部と連通する第1開口部と第2開口部とが設けられ、前記筒部は、前記第1開口部に設けられ、前記内部空間を負圧にする器具との接続が可能な第1接続部と、前記内部空間において前記第2開口部に隣接して設けられ、前記注入針が挿通可能であって、前記注入針を挿通させた状態において前記内部空間における前記第2開口部の側から前記薬剤の漏出を防止する弁部材と、を備える医療器具と、
前記第1接続部に接続した状態において前記内部空間を負圧にする前記器具と、を含む医療器具セット。
a medical device including a hollow injection needle through which a drug can flow;
a cylindrical portion having an internal space that can surround the tip of the injection needle; the cylindrical portion is provided with a first opening and a second opening that communicate the internal space with the outside; a first connecting portion provided in the first opening and capable of being connected to a device that makes the internal space a negative pressure; and a first connecting portion provided adjacent to the second opening in the internal space and capable of connecting the injection A medical device comprising: a valve member through which a needle can be inserted and which prevents leakage of the drug from the second opening side in the internal space in a state where the injection needle is inserted;
A medical instrument set comprising: the instrument that makes the internal space have a negative pressure when connected to the first connection part.
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