JP6138615B2

JP6138615B2 - Medical needle safety device

Info

Publication number: JP6138615B2
Application number: JP2013151338A
Authority: JP
Inventors: 邉正年渡
Original assignee: Kawasumi Laboratories Inc
Current assignee: Kawasumi Laboratories Inc
Priority date: 2013-07-22
Filing date: 2013-07-22
Publication date: 2017-05-31
Anticipated expiration: 2033-07-22
Also published as: JP2015019907A

Description

本発明は、医療用針のための安全装置に関し、特に使用後の医療用針の危険な露出を防止するためのシールド部材（保護部材）を有する医療用針安全装置に関する。
本発明は、例えば、ポートアクセスインフュージョンセット（ＰＯＲＴＡＣＣＥＳＳＩＮＦＵＳＩＯＮ
ＳＥＴ、「ＰＡＩＳ」と称される。）を構成する湾曲針（針ハブに対して略９０度曲がった形状をしている。）を保護（シールド）するもので、
特に、ワンアクション（ステップ）で、脚部を引き伸ばして、針部材の鋭利な末端を保護（シールド）することができる「湾曲針のシールド部材（保護部材）」の形態を改良した医療用針安全装置の改良に関する。
なお「ポート」とは、患者の体内に埋め込まれた部材であり、当該部材を通して医療用針から抗癌剤等の薬液を注入するシステムを形成する部材である。 The present invention relates to a safety device for a medical needle, and more particularly to a medical needle safety device having a shield member (protective member) for preventing dangerous exposure of a medical needle after use.
The present invention is, for example, a port access infusion set (PORT ACCESS INFORMATION).
SET, referred to as “PAIS”. ) To protect (shield) the curved needle (having a shape bent approximately 90 degrees with respect to the needle hub).
In particular, the safety of the medical needle with an improved "curved needle shield member (protective member)" that can stretch the leg and protect the sharp end of the needle member with one action (step) It relates to the improvement of the apparatus.
The “port” is a member embedded in the body of a patient, and is a member that forms a system for injecting a chemical solution such as an anticancer agent from a medical needle through the member.

このような、医療用針安全装置に関する先行技術として、
出願人は、特許文献１に、以下のような、医療用針安全装置の発明を開示した。
特許文献１に記載の翼付湾曲針（以下、医療用針安全装置）は、
〈Ａ〉：ポートに穿刺する湾曲針（２）（以下、針）の先端部（２Ａ）（以下、末端）を保護（シールド）することができる保護部（６）（以下、脚部）を有する。
脚部は、針使用前の第一の位置（以下、第一の折り畳み位置）では、収縮して、針の末端を露出することができる。
ポートから針の末端を引き抜いて、廃棄する状態の使用後の第二の位置（以下、第二の伸張位置）では、針の基端部から末端方向に平行して伸び、針の鋭利な尖端部を、脚部内に収納することができる。 As a prior art regarding such a medical needle safety device,
The applicant disclosed in Patent Document 1 an invention of a medical needle safety device as follows.
The curved needle with wings described in Patent Document 1 (hereinafter referred to as a medical needle safety device)
<A>: A protective part (6) (hereinafter referred to as a leg) that can protect (shield) the tip (2A) (hereinafter referred to as an end) of the curved needle (2) (hereinafter referred to as a needle) that punctures the port. Have.
In the first position before use of the needle (hereinafter referred to as the first folding position), the leg can contract to expose the end of the needle.
In the second position after use in which the distal end of the needle is withdrawn from the port and discarded (hereinafter referred to as the second extended position), it extends parallel to the distal direction from the proximal end of the needle, and the sharp tip of the needle The part can be stored in the leg part.

〈Ｂ〉：さらに脚部は、第１の脚部に第１の係止部を装着し、第２の脚部に、第２の係止部を装着している。
脚部は、このように一対の係止部を装着することにより、脚部が、第二の伸張位置のときに、第１の係止部と、第２の係止部とが相互に係止する。
これにより脚部内に収納した針の鋭利な尖端部は、脚部より外に露出しないように保護（シールド）することができ、この状態で、安全に廃棄することができる。 : Further, the leg portion is mounted with the first locking portion on the first leg portion, and the second locking portion is mounted on the second leg portion.
By mounting the pair of locking portions in this way, the first locking portion and the second locking portion are engaged with each other when the leg portion is in the second extended position. Stop.
As a result, the sharp tip of the needle housed in the leg can be protected (shielded) from being exposed outside the leg, and can be safely discarded in this state.

特許第４３１９６０１号（特許請求の範囲、図１から図１１）Japanese Patent No. 4319601 (Claims, FIGS. 1 to 11)

特許文献１に記載の針安全装置のように、単に前記〈Ａ〉のみでは、針部材を上部方向に引き上げて（引き伸ばし）ても、再度脚部が元の位置（下部方向）に戻る（縮む）ケースがあった。
これに伴い針部材の鋭利な末端が、固定部材（固定プレート）よりも下部に露出してしまうケースがあった。
このため当該針部材の患者の病原体ウイルス等を含む可能性のある血液等で汚染された尖った先端が、下部から偶発的に飛び出して、医療従事者や作業者（医師、看護士等）の針刺し、ウイルス等の感染事故を起こすことが懸念される。
また当該尖った先端に、病原菌を含む患者の血液が付着している場合は、解放されている部分から汚染血液が飛散することもあり、衛生的でない。 As in the case of the needle safety device described in Patent Document 1, with only <A>, even if the needle member is pulled upward (stretched), the leg portion returns (retracts) to the original position (lower direction) again. ) There was a case.
In connection with this, there was a case where the sharp end of the needle member was exposed below the fixing member (fixing plate).
For this reason, the sharp tip of the needle member contaminated with blood or the like that may contain a pathogen virus of the patient accidentally pops out from the lower part of the medical staff or worker (doctor, nurse, etc.) There are concerns about accidents such as needle sticks and viruses.
Moreover, when the patient's blood containing a pathogenic microbe adheres to the pointed tip, contaminated blood may scatter from the released part, which is not hygienic.

そこで、特許文献１に記載の針安全装置の前記〈Ｂ〉のように、脚部の所定の箇所に、一対の係止部を設けるようにした。
これにより、針部材を上部方向に引き上げ（引き伸ばし）た後、一対の係止部の係止部分を相互に係止できるので、脚部が元の位置（下部方向）に戻る（縮む）のを防ぐことができる。
これにより、針部材の鋭利な末端は、脚部内に収納した後は、脚部より露出しない。 Then, like said of the needle | hook safety apparatus of patent document 1, a pair of latching | locking part was provided in the predetermined location of the leg part.
Thus, after the needle member is pulled up (stretched) in the upper direction, the locking portions of the pair of locking portions can be locked to each other, so that the legs can return (shrink) to their original positions (lower direction). Can be prevented.
As a result, the sharp end of the needle member is not exposed from the leg after being housed in the leg.

しかしながら、これらの部材では、〈１〉針部材を上部方向に引き上げる（引き伸ばす）操作、さらに〈２〉一対の係止部の係止部分を相互に係止する操作、の二段階の操作が必要であった。
これにより針部材の鋭利な末端が、脚部の外部に露出するリスクは、解消した。
その反面、使用者（看護士等）に、一対の係止部の係止部分を相互に係止する操作が求められるので、使用者（看護士等）の負担になっていた。 However, these members require two-stage operations: <1> an operation of pulling up (stretching) the needle member upward (stretching) and <2> an operation of locking the locking portions of the pair of locking portions with each other. Met.
This eliminates the risk that the sharp end of the needle member is exposed to the outside of the leg.
On the other hand, the user (nurse, etc.) is required to perform an operation of locking the locking portions of the pair of locking portions with each other, which is a burden on the user (nurse, etc.).

本発明者らは、特許文献１に代表される先行技術における医療用安全装置において、使用後の針の鋭利な末端（先端）が安全装置内に確実に封じこめ（contain or confine）られ、または装置内に固定され、血液等で汚染された尖った先端が、装置下部から偶発的に飛び出すことがない、また、付着血液の飛散することのない、医療用針安全装置を提供することである。
また本発明の目的は、特に、ワンアクション（ステップ）で、脚部を上部方向に引き上げて（引き伸ばして）、針部材の鋭利な末端を保護（シールド）することができる脚部と固定部材（プレート）の形態を改良した医療用針安全装置の改良に関する。 In the medical safety device in the prior art represented by Patent Document 1, the present inventors ensure that the sharp end (tip) of the needle after use is securely contained or confine in the safety device, or It is to provide a medical needle safety device in which a sharp tip fixed in a device and contaminated with blood or the like does not accidentally jump out from the lower part of the device and the attached blood does not scatter. .
In addition, the object of the present invention is, in particular, a leg and a fixing member that can protect (shield) the sharp end of the needle member by pulling up (stretching) the leg portion upward in one action (step). The present invention relates to an improvement in a medical needle safety device having an improved plate shape.

本発明者らは、特許文献１に代表される先行技術における医療用針において、使用後の針の先端が安全装置内に確実に封じこめ（contain or confine）られ、または装置内に固定され、血液等で汚染された尖った先端が、装置下部から偶発的に飛び出すことがなん、また、付着血液の飛散することのない、医療用針安全装置を提供することである。
本発明者は、このような課題を達成するためになされたもので、本発明によれば、以下の新規な医療用針は安全装置が提供される。 In the medical needle according to the prior art represented by Patent Document 1, the present inventors ensure that the tip of the used needle is contained or confine in a safety device or is fixed in the device. It is an object of the present invention to provide a medical needle safety device in which a sharp tip contaminated with blood or the like accidentally jumps out from the lower part of the device, and the attached blood does not scatter.
The present inventor has been made to achieve such a problem, and according to the present invention, a safety device is provided for the following new medical needle.

［１］本発明は、針部材（２）と、シールド部材（３）と、固定部材（５）とを有し、
前記針部材（２）は、末端（２３）を有する針（２１）を有し、当該針（２１）は、基端（ＰＥ）側を針ハブ（２２）に固定し、
前記シールド部材（３）は、シールドハブ（３５）と、脚部（３１・３２）とを有し、
前記固定部材（５）は、固定プレート（５０）を有し、
前記脚部（３１・３２）は、第１脚部（３１）と第２脚部（３２）とを有し、当該第１脚部（３１）と第２脚部（３２）とは、第１側部Ｓ１側と第２側部Ｓ２側に対にして形成し、当該第１脚部（３１）と第２脚部（３２）とは、第１脚部（３１）の下部Ｄ側に位置し、かつ第２脚部（３１）の上部Ｕ側に位置する中間ヒンジ（３９）を介して接続し、
当該対に形成した第１脚部（３１）と第２脚部（３２）は、第２側部Ｓ２側及び／又は第１側部Ｓ１側に係止部材（４０）を有し、
前記係止部材（４０）は、第１係止部（４０．１）と第２係止部（４０．２）とを有し、
前記脚部（３１・３２）は、第１の折り畳み位置から第２の伸張位置まで伸張でき、
前記脚部（３１・３２）が第一の折り畳み位置にあるときは、針の末端（２３）は、前記固定プレート（５０）よりも下部に位置し、
前記脚部（３１・３２）が第二の伸長位置まで伸長したときは、前記針（２１）及び当該針（２１）の末端（２３）は、前記脚部（３１・３２）の内側に収納され、
前記第１係止部（４０．１）と第２係止部（４０．２）が係合することにより、前記脚部（３１・３２）が、前記第二の伸長位置を維持することができる医療用針安全装置（１）であり、
前記第１係止部（４０．１）は、前記第２係止部（４０．２）と係合する側に係止端（４０．１Ｔ）を形成し、
前記第２係止部（４０．２）は、前記係止端（４０．１Ｔ）と係合する側に複数の突部（４０Ｔ）を形成し、当該突部（４０Ｔ）の間に溝（４０Ｍ）を形成し、
前記脚部（３１・３２）が完全に伸張された状態で見た場合、
前記第１係止部（４０．１）は、第１脚部（３１Ｓ２）の下部Ｄ側に形成し、当該第１係止部（４０．１）は、末端ＤＥ方向から基端ＰＥ方向に見て、略三角板状に形成し、当該第１係止部（４０．１）は、下部Ｄ方向に先細りに形成した係止端（４０．１Ｔ）を有し、
前記第２係止部（４０．２）は、前記第２脚部（３２）の上部Ｕ側で、かつ第１側部Ｓ１方向（第２側部方向）に突設し、末端ＤＥ方向から基端ＰＥ方向に見て、略Ｌ字状に形成し、
第１側部Ｓ１側（第２側部Ｓ側）の一端がヒンジ（４０Ｈ）により、前記第２脚部（３２）の上部Ｕ側に繋がり、
第１側部Ｓ１側（第２側部Ｓ側）は、略半円周状に形成し、外周に複数の突部（４０Ｔ）を断続的に形成し、各突部（４０Ｔ）の間には、所定の間隔で溝（４０Ｍ）を形成し、
前記脚部（３１・３２）が完全に折り畳まれた状態では、前記第１係止部（４０．１）の係止端（４０．１Ｔ）は、前記突部（４０Ｔ）の第１側部Ｓ１側（第２側部Ｓ２側）で係止され、
前記脚部（３１、３２）が略垂直に伸びきった状態で、前記第１係止部（４０．１）の係止端（４０．１Ｔ）は、前記複数の突部（４０Ｔ）と溝（４０Ｍ）を、第１側部Ｓ１側（第２側部Ｓ２側）から第２側部Ｓ２側（第１側部Ｓ１側）に移動して、第２側部Ｓ２側（第１側部Ｓ１側）端部で係止することができるように形成した医療用針安全装置（１）を提供する。
[1] The present invention includes a needle member (2), a shield member (3), and a fixing member (5).
The needle member (2) has a needle (21) having a distal end (23), and the needle (21) fixes the proximal end (PE) side to the needle hub (22),
The shield member (3) has a shield hub (35) and legs (31, 32),
The fixing member (5) has a fixing plate (50),
The legs (31, 32) have a first leg (31) and a second leg (32), and the first leg (31) and the second leg (32) The first leg portion (31) and the second leg portion (32) are formed on the lower side D side of the first leg portion (31). Connected via an intermediate hinge (39) located on the upper U side of the second leg (31),
The first leg portion (31) and the second leg portion (32) formed in the pair have a locking member (40) on the second side portion S2 side and / or the first side portion S1 side ,
The locking member (40) has a first locking portion (40.1) and a second locking portion (40.2),
The legs (31, 32) can be extended from the first folded position to the second extended position,
When the legs (31, 32) are in the first folded position, the end (23) of the needle is located below the fixed plate (50),
When the leg portions (31, 32) extend to the second extended position, the needle (21) and the end (23) of the needle (21) are stored inside the leg portions (31, 32). And
When the first locking portion (40.1) and the second locking portion (40.2) are engaged, the leg portions (31, 32) maintain the second extended position. Medical needle safety device (1)
It said first locking portion (40.1) forms a locking end (40.1T) on the side that engages with the second locking portion (40.2),
The second locking part (40.2) is formed with a plurality of protrusions (40T) on the side engaged with the locking end (40.1T), and a groove ( 40M),
When viewed with the legs (31, 32) fully extended,
Said first locking portion (40.1), the first leg portion is formed on the lower D side (31S2), the first locking portion (40.1), from the distal DE direction to the proximal end PE direction look, formed into a substantially triangular plate shape, the first locking portion (40.1) has a locking end (40.1T) formed tapered in the lower direction D,
The second locking portion (40.2) projects from the upper U side of the second leg portion (32) and in the first side portion S1 direction (second side portion direction) from the terminal DE direction. When viewed in the proximal PE direction, it is formed in a substantially L shape,
One end of the first side S1 side (second side S side) is connected to the upper U side of the second leg (32) by a hinge (40H),
The first side portion S1 side (second side portion S side) is formed in a substantially semicircular shape, a plurality of protrusions (40T) are intermittently formed on the outer periphery, and between each protrusion (40T) Forms grooves (40M) at predetermined intervals,
In the state where the leg portions (31, 32) are completely folded, the locking end (40.1T) of the first locking portion (40.1) is the first side portion of the protruding portion (40T). Locked on the S1 side (second side S2 side),
With the leg portions (31, 32) extending substantially vertically, the locking end (40.1T) of the first locking portion (40.1) has a groove with the plurality of protrusions (40T). (40M) is moved from the first side portion S1 side (second side portion S2 side) to the second side portion S2 side (first side portion S1 side), and then moved to the second side portion S2 side (first side portion). Provided is a medical needle safety device (1) formed so that it can be locked at the (S1 side) end .

［２］本発明は、針部材（２）と、シールド部材（３）と、固定部材（５´）とを有し、
前記針部材（２）は、末端（２３）を有する針（２１）を有し、当該針（２１）は、基端（ＰＥ）側を針ハブ（２２）に固定し、
前記シールド部材（３）は、シールドハブ（３５´）と、脚部（３１・３２´）とを有し、
前記固定部材（５）は、固定プレート（５０´）を有し、
前記脚部（３１・３２´）は、第１脚部（３１）と第２脚部（３２´）とを有し、当該第１脚部（３１）と第２脚部（３２）とは、第１側部Ｓ１側と第２側部Ｓ２側に対にして形成し、当該第１脚部（３１）と第２脚部（３２）とは、第１脚部（３１）の下部Ｄ側に位置し、かつ第２脚部（３１）の上部Ｕ側に位置する中間ヒンジ（３９）を介して接続し、
当該対に形成した第１脚部（３１）と第２脚部（３２´）は、第２側部Ｓ２側及び／又は第１側部Ｓ１側に係止部材（４０´）を有し、
前記係止部材（４０´）は、第１係止部（４０．１´）と第２係止部（４０．２´）とを有し、
前記脚部（３１・３２´）は、第１の折り畳み位置から第２の伸張位置まで伸張でき、
前記脚部（３１・３２´）が第一の折り畳み位置にあるときは、針の末端（２３）は、前記固定プレート（５０´）よりも下部に位置し、
前記脚部（３１・３２´）が第二の伸長位置まで伸長したときは、前記針（２１）及び当該針（２１）の末端（２３）は、前記脚部（３１・３２´）の内側に収納され、
前記第１係止部（４０．１´）と第２係止部（４０．２´）が係合することにより、前記脚部（３１・３２´）が、前記第二の伸長位置を維持することができる医療用針安全装置（１´）であり、
前記第１係止部（４０．１´）は、前記第２係止部（４０．２´）と係合する側に突設し、
前記第２係止部（４０．２´）は、前記第１係止部（４０．１´）と係合する側に突設し、
前記脚部（３１・３２）が完全に折り畳まれた状態から完全に伸張された状態で見た場合、
前記第２脚部（３２´）は、上部Ｕ側に末端側の側壁（４０．２ＷＤＥ）と基端側の側壁（４０．２ＷＰＥ）を延設して一対形成し、
当該末端側の側壁（４０．２ＷＤＥ）と基端側の側壁（４０．２ＷＰＥ）との間に、空間（３２ＳＯ´）を形成し、
前記第１係止部（４０．１´）は、第１脚部（３１）の基端ＰＥ方向から末端ＤＥ方向に突設し、当該第１係止部（４０．１´）は、末端ＤＥ方向から基端ＰＥ方向に見て、略矩形状に形成し、
前記第２係止部（４０．２´）は、前記末端側の側壁（４０．２ＷＤＥ）の第１側部Ｓ１方向（第２側部方向）に突設し、当該第２係止部（４０．２´）は、末端ＤＥ方向から基端ＰＥ方向に見て、略板状で略扇状に形成し、
前記脚部（３１、３２´）が略垂直に伸びきった状態で、前記第１係止部（４０．１´）の下部Ｄ側端部は、前記第２係止部（４０．２´）の上部Ｕ側端部と接触し、上部Ｕ側で係止することができるように形成し、
前記第１脚部（３１）の下部Ｄ側は、前記第２脚部（３２´）の上部Ｕの空間（３２ＳＯ´）に、嵌合できるよう形成した医療用針安全装置（１´）を提供する。
[2] The present invention includes a needle member (2), a shield member (3), and a fixing member (5 ′),
The needle member (2) has a needle (21) having a distal end (23), and the needle (21) fixes the proximal end (PE) side to the needle hub (22),
The shield member (3) has a shield hub (35 ′) and legs (31, 32 ′),
The fixing member (5) has a fixing plate (50 '),
The leg portions (31, 32 ') have a first leg portion (31) and a second leg portion (32'), and the first leg portion (31) and the second leg portion (32) are The first leg portion (31) and the second leg portion (32) are formed as a pair on the first side portion S1 side and the second side portion S2 side, and the lower portion D of the first leg portion (31). Connected via an intermediate hinge (39) located on the upper U side of the second leg (31),
The first leg (31) and the second leg (32 ') formed in the pair have a locking member (40') on the second side S2 side and / or the first side S1 side,
The locking member (40 ′) has a first locking portion (40.1 ′) and a second locking portion (40.2 ′),
The legs (31, 32 ') can be extended from the first folding position to the second extension position,
When the legs (31, 32 ') are in the first folded position, the distal end (23) of the needle is located below the fixed plate (50'),
When the leg (31, 32 ') is extended to the second extension position, the needle (21) and the end (23) of the needle (21) are located inside the leg (31, 32'). Stored in
When the first locking portion (40.1 ′) and the second locking portion (40.2 ′) are engaged, the leg portions (31, 32 ′) maintain the second extended position. A medical needle safety device (1 ') that can
The first locking portion (40.1 ′) protrudes on the side that engages with the second locking portion (40.2 ′),
The second locking part (40.2 ′) protrudes from the side that engages with the first locking part (40.1 ′),
When the legs (31, 32) are viewed in a fully expanded state from a completely folded state,
The second leg (32 ') is formed by extending a distal side wall (40.2WDE) and a proximal side wall (40.2WPE) on the upper U side,
A space (32SO ') is formed between the distal side wall (40.2WDE) and the proximal side wall (40.2WPE),
The first locking part (40.1 ′) protrudes from the proximal end PE direction of the first leg part (31) in the terminal DE direction, and the first locking part (40.1 ′) It is formed in a substantially rectangular shape when viewed from the DE direction to the proximal PE direction,
The second locking portion (40.2 ′) protrudes in the first side S1 direction (second side direction) of the side wall (40.2WDE) on the end side, and the second locking portion ( 40.2 ′) is substantially plate-like and substantially fan-like when viewed from the terminal DE direction to the base PE direction,
In a state where the leg portions (31, 32 ') are extended substantially vertically, the lower D side end portion of the first locking portion (40.1') is the second locking portion (40.2 '). ) In contact with the upper U side end, and can be locked on the upper U side,
The lower D side of the first leg (31) is provided with a medical needle safety device (1 ') formed so as to be able to fit into the space (32SO') of the upper U of the second leg (32 '). provide.

［３］本発明は、針部材（２）と、シールド部材（３）と、固定部材（５´）とを有し、
前記針部材（２）は、末端（２３）を有する針（２１）を有し、当該針（２１）は、基端（ＰＥ）側を針ハブ（２２）に固定し、
前記シールド部材（３）は、シールドハブ（３５´）と、脚部（３１・３２´）とを有し、
前記固定部材（５）は、固定プレート（５０´）を有し、
前記脚部（３１・３２´）は、第１脚部（３１）と第２脚部（３２´）とを有し、当該第１脚部（３１）と第２脚部（３２´）とは、第１側部Ｓ１側と第２側部Ｓ２側に対にして形成し、当該第１脚部（３１）と第２脚部（３２´）とは、第１脚部（３１）の下部Ｄ側に位置し、かつ第２脚部（３１）の上部Ｕ側に位置する中間ヒンジ（３９）を介して接続し、
当該対に形成した第１脚部（３１）と第２脚部（３２´）は、第２側部Ｓ２側及び第１側部Ｓ１側に係止部材（４０´´）を有し、
前記係止部材（４０´´）は、第１係止部（４０．１´´）と第２係止部（４０．２´´）とを有し、
前記脚部（３１・３２´）は、第１の折り畳み位置から第２の伸張位置まで伸張でき、
前記脚部（３１・３２´）が第一の折り畳み位置にあるときは、針の末端（２３）は、前記固定プレート（５０´）よりも下部に位置し、
前記脚部（３１・３２´）が第二の伸長位置まで伸長したときは、前記針（２１）及び当該針（２１）の末端（２３）は、前記脚部（３１・３２´）の内側に収納され、
前記第１係止部（４０．１´´）と第２係止部（４０．２´´）が係合することにより、前記脚部（３１・３２´）が、前記第二の伸長位置を維持することができる医療用針安全装置（１´´）であり、
前記係止部材（４０´´）は、第１係止部（４０．１´´）と第２係止部（４０．２´´）とを有し、
前記第１係止部（４０．１´´）は、前記第２係止部（４０．２´´）と係合する位置に形成し、
前記第２係止部（４０．２´´）は、前記第１係止部（４０．１´´）と係合する位置に形成し、
前記脚部（３１・３２´）が完全に折り畳まれた状態から完全に伸張された状態で見た場合、
前記第２脚部（３２´）は上部Ｕ側に末端側の側壁（４０．２ＷＤＥ）と基端側の側壁（４０．２ＷＰＥ）を延設して一対形成し、
当該末端側の側壁（４０．２ＷＤＥ）と基端側の側壁（４０．２ＷＰＥ）とを結合する第２側部側（第１側部Ｓ１側）の壁（４０．３Ｗ）を形成し、
前記末端側の側壁（４０．２ＷＤＥ）、前記基端側の側壁（４０．２ＷＰＥ）及び前記第２側部側（第１側部Ｓ１側）の壁（４０．３Ｗ）により、溝（４０．２Ｍ）を形成し、
前記第１係止部（４０．１´´）は、段部（４０．１Ｄ）と下部壁（４０．１ＤＷ）とを有し、
前記段部（４０．１Ｄ）は、第１脚部（３１）下部Ｄ側に形成し、
前記下部壁（４０．１ＤＷ）は、前記段部（４０．１Ｄ）よりも下部Ｄ側から下部Ｄ端部にわたって形成し、
前記下部壁（４０．１ＤＷ）の厚みは、第１脚部（３１）本体よりも薄肉に形成し、
前記下部壁（４０．１ＤＷ）の下部Ｄ端部はヒンジ（４０．１Ｈ）により、前記溝（４０．２Ｍ）の下部Ｄ近傍と繋がっており、
前記第２係止部（４０．２´´）は、前記末端側の側壁（４０．２ＷＤＥ）、前記基端側の側壁（４０．２ＷＰＥ）、前記第２側部側（第１側部Ｓ１側）の壁（４０．３Ｗ）及び前記溝（４０．２Ｍ）よりなり、
前記脚部（３１、３２´）が略垂直に伸びきった状態で、前記第２脚部（３２´）上部Ｕの第１側部Ｓ１側の側壁（４０．３Ｗ）の縁部（４０．２Ｆ）は、前記第１係止部（４０．１´´）の段部（４０．１Ｄ）に当接し、
前記第１係止部（４０．１´´）の下部壁（４０．１ＤＷ）は、前記第２係止部（４０．２´´）の溝（４０．２Ｍ）に嵌合できるように形成した医療用針安全装置（１´´）を提供する。
[3] The present invention includes a needle member (2), a shield member (3), and a fixing member (5 ′),
The needle member (2) has a needle (21) having a distal end (23), and the needle (21) fixes the proximal end (PE) side to the needle hub (22),
The shield member (3) has a shield hub (35 ′) and legs (31, 32 ′),
The fixing member (5) has a fixing plate (50 '),
The said leg part (31 * 32 ' ) has a 1st leg part (31) and a 2nd leg part (32 ' ) , The said 1st leg part (31) and a 2nd leg part (32 ' ), Are formed in pairs on the first side portion S1 side and the second side portion S2 side, and the first leg portion (31) and the second leg portion (32 ') are the same as those of the first leg portion (31). Connected via an intermediate hinge (39) located on the lower D side and located on the upper U side of the second leg (31),
The first leg portion (31) and the second leg portion (32 ′) formed in the pair have locking members (40 ″) on the second side portion S2 side and the first side portion S1 side,
The locking member (40 ″) has a first locking portion (40.1 ″) and a second locking portion (40.2 ″),
The legs (31, 32 ') can be extended from the first folding position to the second extension position,
When the legs (31, 32 ') are in the first folded position, the distal end (23) of the needle is located below the fixed plate (50'),
When the leg (31, 32 ') is extended to the second extension position, the needle (21) and the end (23) of the needle (21) are located inside the leg (31, 32'). Stored in
When the first locking portion (40.1 ″) and the second locking portion (40.2 ″) are engaged, the leg portions (31, 32 ′) are moved to the second extended position. Is a medical needle safety device (1 ″) that can maintain
The locking member (40 ″) has a first locking portion (40.1 ″) and a second locking portion (40.2 ″),
The first locking part (40.1 ″) is formed at a position to be engaged with the second locking part (40.2 ″),
The second locking part (40.2 ″) is formed at a position to engage with the first locking part (40.1 ″),
When the leg (31, 32 ') is viewed in a fully expanded state from a fully folded state,
The second leg (32 ') is formed by extending a distal side wall (40.2WDE) and a proximal side wall (40.2WPE) on the upper U side,
Forming the second side wall (first side S1 side) wall (40.3W) that joins the distal side wall (40.2WDE) and the proximal side wall (40.2WPE);
The distal side wall (40.2WDE), the proximal side wall (40.2WPE), and the second side wall (first side S1 side) wall (40.3W) provide a groove (40. 2M),
The first locking part (40.1 ″) has a step part (40.1D) and a lower wall (40.1DW),
The step (40.1D) is formed on the first leg (31) lower D side,
The lower wall (40.1DW) is formed from the lower D side to the lower D end than the step (40.1D),
The thickness of the lower wall (40.1DW) is thinner than the first leg (31) body,
The lower D end of the lower wall (40.1DW) is connected to the vicinity of the lower D of the groove (40.2M) by a hinge (40.1H),
The second locking portion (40.2 ″) includes the distal side wall (40.2WDE), the proximal side wall (40.2WPE), and the second side portion (first side portion S1). Side) wall (40.3W) and the groove (40.2M),
With the legs (31, 32 ') extending substantially vertically, the edge (40.W) of the side wall (40.3W) on the first side S1 side of the upper part U of the second leg (32'). 2F) abuts on the stepped portion (40.1D) of the first locking portion (40.1 ″),
The lower wall (40.1DW) of the first locking part (40.1 ″) is formed so as to be able to fit into the groove (40.2M) of the second locking part (40.2 ″). A medical needle safety device (1 ″) is provided.

［４］本発明は、第１係止部（４０．１、４０．１´４０．１´´）は、第１脚部（３１）の下部Ｄ側に形成し、第２係止部（４０．２、４０．２´、４０．２´´）は、第２脚部（３２）の上部Ｄ側に形成し、または、
第１係止部（４０．１、４０．１´４０．１´´）は、第２脚部（３２）の上部Ｄ側に形成し、第２係止部（４０．２、４０．２´、４０．２´´）は、第１脚部（３１）の下部Ｄ側に形成した［１］から［３］のいずれか１項に記載の医療用針安全装置（１、１´、１´´）を提供する。
[4] In the present invention, the first locking portion (40.1, 40.1′40.1 ″) is formed on the lower portion D side of the first leg portion (31), and the second locking portion ( 40.2, 40.2 ′, 40.2 ″) are formed on the upper D side of the second leg (32), or
The first locking portion (40.1, 40.1′40.1 ″) is formed on the upper part D side of the second leg portion (32), and the second locking portion (40.2, 40.2) is formed. ′, 40.2 ″) is a medical needle safety device according to any one of [1] to [3] formed on the lower D side of the first leg (31) . 1 ″).

［５］本発明は、固定部（５、５´）は、固定プレート（５０、５０´）を有し、当該固定プレート（５０、５０´）は、略中央部（５０Ｃ）の末端ＤＥ側に、末端壁（５２）を有し、当該末端壁（５２）に嵌合溝（５２Ｍ）を形成した［１］から［４］のいずれか１項に記載の医療用針安全装置（１、１´、１´´）を提供する。
[ 5 ] In the present invention, the fixing portion (5, 5 ') has a fixing plate (50, 50'), and the fixing plate (50, 50 ') is substantially at the end DE side of the central portion (50C). The medical needle safety device (1, 1) according to any one of [1] to [ 4 ], further including an end wall (52) and a fitting groove (52M) formed in the end wall (52). 1 ′, 1 ″).

本発明の医療用針安全装置によれば、
〈１〉（第一発明）
（第二の状態）で、第１係止部４０．１の係止端４０．１Ｔは、図６、図８のように、第１側部Ｓ１側から第２側部Ｓ２側に移動して、複数の突部４０Ｔを、逐次乗り越えて、第２側部Ｓ２側端部（上部Ｕ側）で係止する。
係止端４０．１Ｔは、第１・第２脚部（３１・３２）の第二の状態（完全に伸びきった状態）と平行になって、突部４０Ｔを逆に乗り越える方向（図８では第１側部Ｓ１方向）に動くことはない。
これにより、第１・第２脚部（３１・３２）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。 According to the medical needle safety device of the present invention,
<1> (first invention)
In the second state, the locking end 40.1T of the first locking portion 40.1 moves from the first side S1 side to the second side S2 side as shown in FIGS. Then, the plurality of protrusions 40T are sequentially overcome and locked at the second side S2 side end (upper U side).
The locking end 40.1T is parallel to the second state (completely extended state) of the first and second leg portions (31, 32), and reversely climbs over the protrusion 40T (FIG. 8). Then, it does not move in the first side portion S1 direction.
Accordingly, the first and second leg portions (31, 32) can be prevented from returning from the second state (completely extended state) to the first state.

〈２〉（第二発明）
（第二の状態）で、図１２〜１５に示すように、第１係止部４０．１´の下部Ｄ側端部は、第２係止部４０．２´の上部Ｕ側端部と接触し、上部Ｕ側で係止する。
加えて第１脚部３１の下部Ｄ側は、第１側部Ｓ１側と第２側部Ｓ２側との両側で、
第２脚部３２´の上部Ｕの空間３２ＳＯ´に嵌合する。
これにより、第１・第２脚部（３１・３２´）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。 <2> (second invention)
In the (second state), as shown in FIGS. 12 to 15, the lower D side end of the first locking portion 40.1 ′ is the same as the upper U side end of the second locking portion 40.2 ′. Contact and lock on top U side.
In addition, the lower D side of the first leg 31 is on both sides of the first side S1 side and the second side S2 side,
It fits in the space 32SO 'in the upper part U of the second leg 32'.
Accordingly, the first and second leg portions (31, 32 ′) can be prevented from returning from the second state (completely extended state) to the first state.

〈３〉（第三発明）
（第二の状態）で、図１８〜２１に示すように、第２係止部４０．２´´の溝４０．２Ｍに、第１係止部４０．１´´の下部壁４０．１ＤＷが嵌合し、第２係止部４０．２´´の壁４０．３Ｗの上部Ｕ側の縁部４０．２Ｆと第１係止部４０．１´´の下部Ｄ側の段部４０．１Ｄは当接する。
加えて、第１側部Ｓ１側と第２側部Ｓ２側との両側で、第１係止部４０．１´´の下部Ｄ側と第２係止部４０．２´´上部Ｕ側は、嵌合する。
これにより、第１・第２脚部（３１・３２´）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。
以上のように、本発明の医療用針安全装置によれば、ワンアクション（ステップ）で、脚部（３１、３２）を上部方向に引き上げて（引き伸ばして）、針部材の鋭利な末端を保護（シールド）することができる。 <3> (Third invention)
In the (second state), as shown in FIGS. 18 to 21, the lower wall 40.1DW of the first locking portion 40.1 ″ is inserted into the groove 40.2M of the second locking portion 40.2 ″. Are fitted, and the edge 40.2F on the upper U side of the wall 40.3W of the second locking part 40.2 ″ and the step 40.F on the lower D side of the first locking part 40.1 ″. 1D abuts.
In addition, on both sides of the first side S1 side and the second side S2 side, the lower D side of the first locking part 40.1 ″ and the upper U side of the second locking part 40.2 ″ are Mate.
Accordingly, the first and second leg portions (31, 32 ′) can be prevented from returning from the second state (completely extended state) to the first state.
As described above, according to the medical needle safety device of the present invention, the legs (31, 32) are pulled upward (stretched) in one action (step) to protect the sharp end of the needle member. (Shield) can be.

図１は、本発明（第一発明）の医療用針安全装置の全体図（製造後、末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態、針部材２は省略）である。FIG. 1 is an overall view of a medical needle safety device of the present invention (first invention) (after manufacturing, an overall view / first state near the terminal DE and viewed from the first side S1-upper U direction, Needle member 2 is omitted). 図２は、図１の一部拡大図である。FIG. 2 is a partially enlarged view of FIG. 図３は、本発明（第一発明）の医療用針安全装置の全体図（組み立て後、末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態、針部材２は省略）である。FIG. 3 is an overall view of the medical needle safety device of the present invention (first invention) (after assembly, an overall view / first state as seen from the first DE S1 and the upper U direction, near the terminal DE, Needle member 2 is omitted). 図４は、本発明（第一発明）の医療用針安全装置の全体図（組み立て後、末端ＤＥ方向から見た全体図／第一の状態、針部材２は装着）である。FIG. 4 is an overall view of the medical needle safety device of the present invention (first invention) (after assembly, the overall view as seen from the terminal DE direction / first state, the needle member 2 is mounted). 図５は、本発明（第一発明）の医療用針安全装置の全体図（組み立て後、第２側部Ｓ２方向から見た全体図／第一の状態、針部材２は装着）である。FIG. 5 is an overall view of the medical needle safety device of the present invention (first invention) (after assembly, the overall view as seen from the second side S2 direction / first state, the needle member 2 is mounted). 図６は、本発明（第一発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態から第二の状態への移行状態、針部材は省略）である。FIG. 6 is an overall view of the medical needle safety device of the present invention (first invention) (overall view near the terminal DE and from the first side S1-upper U direction / second state to second state. State transition state, needle member is omitted). 図７は、本発明（第一発明）の医療用針安全装置の全体図（末端ＤＥ方向から見た全体図／第二の状態、針部材は装着）である。FIG. 7 is an overall view of the medical needle safety device of the present invention (first invention) (overall view as viewed from the terminal DE direction / second state, the needle member is attached). 図８は、図７の一部拡大図である。FIG. 8 is a partially enlarged view of FIG. 図９は、図７の第２側部Ｓ２方向から見た側面図である。FIG. 9 is a side view seen from the direction of the second side portion S2 of FIG. 図１０は、本発明（第二発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態、針部材２は省略）である。FIG. 10 is an overall view of the medical needle safety device of the present invention (second invention) (overall view near the terminal DE and viewed from the first side S1-upper U direction / first state, needle member 2; Is omitted). 図１１は、図１０の一部拡大図である。FIG. 11 is a partially enlarged view of FIG. 図１２は、本発明（第二発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態から第二の状態への移行状態、針部材は省略）である。FIG. 12 is an overall view of the medical needle safety device of the present invention (second invention) (closer to the terminal DE and from the first side S1-upper U direction / from the first state to the second state from the first state. State transition state, needle member is omitted). 図１３は、図１２の一部拡大図である。FIG. 13 is a partially enlarged view of FIG. 図１４は、本発明（第二発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第二の状態、針部材２は省略）である。14 is an overall view of the medical needle safety device of the present invention (second invention) (overall view as viewed from the first side S1-upper U direction near the end DE / second state, needle member 2). Is omitted). 図１５は、図１４の一部拡大図である。FIG. 15 is a partially enlarged view of FIG. 図１６は、本発明（第三発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態、針部材２は省略）である。FIG. 16 is a general view of the medical needle safety device of the present invention (third invention) (overall view as viewed from the first side S1 and the upper U direction near the terminal DE / first state, needle member 2). Is omitted). 図１７は、図１６の一部拡大図である。FIG. 17 is a partially enlarged view of FIG. 図１８は、本発明（第三発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第一の状態から第二の状態への移行状態、針部材は省略）である。FIG. 18 is an overall view of the medical needle safety device of the present invention (third invention) (closer to the terminal DE and from the first side S1-upper U direction / from the first state to the second state. State transition state, needle member is omitted). 図１９は、図１８の一部拡大図である。FIG. 19 is a partially enlarged view of FIG. 図２０は、本発明（第三発明）の医療用針安全装置の全体図（末端ＤＥ寄りで、かつ第１側部Ｓ１−上部Ｕ方向から見た全体図／第二の状態、針部材２は省略）である。FIG. 20 is an overall view of the medical needle safety device according to the present invention (third invention) (overall view as viewed from the end DE and from the first side S1-upper U direction / second state, needle member 2). Is omitted). 図２１は、図２０の一部拡大図である。FIG. 21 is a partially enlarged view of FIG.

以下、図面を参照しながら本発明（第一発明〜第三発明）を詳細に説明する。
以下、本発明を明確に説明するため、次の定義をおく。
（定義１）本発明の医療用安全装置において「第一の状態」（第一の折り畳み位置）とは、図３から図５に示すように、シールド部材３の第１・第２脚部（３１・３２）が完全に折り畳まれた位置にある状態を意味する。換言すれば、第１・第２脚部（３１・３２）が完全に折り畳まれた状態であり、一方、針２１は下方に延伸し、輸液等の操作に供されうる又は使用時の状態であり、さらに言えば、末端２３が保護（シールド）されていない状態を意味する。 Hereinafter, the present invention (first to third inventions) will be described in detail with reference to the drawings.
Hereinafter, in order to clearly describe the present invention, the following definitions are provided.
(Definition 1) In the medical safety device of the present invention, the “first state” (first folding position) means the first and second legs (first and second legs) of the shield member 3 as shown in FIGS. 31.32) means a state in which it is completely folded. In other words, the first and second legs (31, 32) are in a completely folded state, while the needle 21 extends downward and can be used for operations such as infusion or in a state in use. Yes, more specifically, it means that the end 23 is not protected (shielded).

（定義２）同様に、図７から図９に示すように、「第二の状態」（第二の伸長位置）とは、シールド部材３の第１・第２脚部（３１・３２）が完全に伸長された位置にある状態を意味する。換言すれば、針の使用（穿刺）が終了し第１・第２脚部（３１・３２）が完全に伸長された状態で、針２１の末端２３が本医療用安全装置内に閉じこめられ、保護（シールド）されている状態を意味する。
（定義３）「移行状態」とは、「第一の状態」から「第二の状態」へ移行する途中の状態を意味する。
（定義４）「移行開始状態」とは、「第一の状態」から「第二の状態」へ移行を開始する初期の状態を意味する。 (Definition 2) Similarly, as shown in FIG. 7 to FIG. 9, the “second state” (second extended position) means that the first and second legs (31, 32) of the shield member 3 are used. It means a state in a fully extended position. In other words, with the use (puncture) of the needle finished and the first and second legs (31, 32) fully extended, the distal end 23 of the needle 21 is confined in the medical safety device, It means a state of being protected (shielded).
(Definition 3) “Transition state” means a state during the transition from the “first state” to the “second state”.
(Definition 4) “Transition start state” means an initial state in which a transition from “first state” to “second state” is started.

（定義５）「移行終了状態」とは、「第一の状態」から「第二の状態」へ移行を終了する間際の状態を意味する。
（定義６）本発明で、「基端ＰＥ（側または方向）」とは、図５に示すように、針ハブ２２のチューブＴを接続する側の端部を意味する。
（定義７）「末端ＤＥ（側または方向）」とは、図５に示すように、「基端ＰＥ（側または方向）」と反対側の端部を意味する。さらにいえば、針ハブ２２のチューブＴを接続しない側の端部、針２１を装着した側の端部を意味する。 (Definition 5) “Transition end state” means a state just before the end of the transition from the “first state” to the “second state”.
(Definition 6) In the present invention, “proximal end PE (side or direction)” means an end of the needle hub 22 on the side where the tube T is connected, as shown in FIG.
(Definition 7) “Terminal DE (side or direction)” means an end opposite to “base end PE (side or direction)” as shown in FIG. More specifically, it means the end of the needle hub 22 on the side where the tube T is not connected and the end on the side where the needle 21 is attached.

（定義８）「水平軸線ＨＬ（方向）」とは、図５に示すように、管状の針ハブ２２の長手方向に延びる方向（図の破線参照）を意味する。なお説明で必要な場合は、長手Ｌ方向の水平軸線を「ＨＬＬ」、側部Ｓ方向の水平軸線を「ＨＬＳ」とそれぞれ区別して記載する。
（定義９）「垂直軸線ＶＬ（方向）」とは、図５に示すように、針２１の曲った末端２３側が長手方向に垂下して延びる方向（図の破線参照）を意味する。
（定義１０）「第１側部Ｓ１（側または方向）」とは、図１、３〜７に示すように、例えば翼３４の右側端部の方向（図の破線矢印参照）を意味する。
（定義１１）「第２側部Ｓ２（側または方向）」とは、図１、３〜７に示すように、例えば翼３４の左側端部の方向（図の破線矢印参照）を意味する。 (Definition 8) “Horizontal axis HL (direction)” means a direction (see a broken line in the figure) extending in the longitudinal direction of the tubular needle hub 22 as shown in FIG. When necessary in the description, the horizontal axis in the longitudinal L direction is described as “HLL” and the horizontal axis in the side S direction is distinguished from “HLS”.
(Definition 9) “Vertical axis VL (direction)” means the direction in which the bent end 23 side of the needle 21 extends in the longitudinal direction (see the broken line in the figure), as shown in FIG.
(Definition 10) “First side portion S1 (side or direction)” means, for example, the direction of the right end portion of the wing 34 (see the broken line arrow in the figure), as shown in FIGS.
(Definition 11) “Second side portion S2 (side or direction)” means, for example, the direction of the left end portion of the wing 34 (see the broken line arrow in the figure), as shown in FIGS.

（定義１２）「上部Ｕ（側または方向）」とは、図１、３〜７に示すように、例えば針２１の曲った末端２３側と反対方向（図の破線矢印参照）を意味する。
（定義１３）「下部Ｄ（側または方向）」とは、図１、３〜７に示すように、例えば針２１の曲った末端２３側方向（図の破線矢印参照）を意味する。
（定義１４）「長手方向」とは、「針安全装置」全体の長手方向［水平軸線ＨＬ（方向）］を意味する（各部材、例えば「翼部」の長手方向、すなわち長く形成した方向ではない）。
（各構成部品の名称の位置・配置等の方向性を示す符号の記載について）
本発明の図面及び発明の説明の中で、例えば図１〜３、６〜８に例示するように、第１側部Ｓ１側の第２脚部３２を「３２Ｓ１」、第２側部Ｓ２側の第１脚部３１を「３１Ｓ１」と記載した。
なおこれらの脚部（３１・３２）並びにこれら以外の各構成部品の名称で、「第１側部Ｓ１側」等の位置・配置等の方向性を示す符号は、発明の理解ができ、必要と認められる範囲内で、図面及び発明の説明の中で一部のみについて記載した。 (Definition 12) “Upper U (side or direction)” means, for example, a direction opposite to the bent end 23 side of the needle 21 (see the broken line arrow in the figure), as shown in FIGS.
(Definition 13) “Lower D (side or direction)” means, for example, the direction toward the distal end 23 side of the needle 21 (see the broken line arrow in the figure), as shown in FIGS.
(Definition 14) “Longitudinal direction” means the longitudinal direction [horizontal axis HL (direction)] of the entire “needle safety device” (in the longitudinal direction of each member, for example, “wing”, that is, in the direction in which it is formed long). Absent).
(Regarding the description of the sign indicating the direction of the position / arrangement of the name of each component)
In the drawings and the description of the present invention, for example, as illustrated in FIGS. 1 to 3 and 6 to 8, the second leg portion 32 on the first side portion S1 side is set to “32S1”, the second side portion S2 side. The first leg portion 31 was described as “31S1”.
In addition, the code | symbol which shows directionality, such as position and arrangement | positioning, such as "the 1st side part S1 side" by the name of these leg parts (31 * 32) and each component other than these, can understand an invention, and is required Only a part of the drawings and the description of the invention are described within the scope of the above.

［医療用針安全装置１、１´、１´´］
本発明（第一発明〜第三発明）の医療用針安全装置１（以下、単に「装置１、１´、１´´」という場合がある。）について、以下、図面を参照しながら説明する。
図１〜図９は、第一発明の医療用針安全装置１、図１０〜１５は、第二発明の医療用針安全装置１´、図１６〜図２１は、第三発明の医療用針安全装置１´´を例示している。
第二発明・第三発明の医療用針安全装置１´、１´´が、第一発明の医療用針安全装置１と主に異なる部材は、係止部材４０´、４０´´、第２脚部３２´、固定部材５´（固定プレート５０´）である。 [Medical needle safety device 1, 1 ′, 1 ″]
The medical needle safety device 1 of the present invention (first invention to third invention) (hereinafter sometimes simply referred to as “device 1, 1 ′, 1 ″”) will be described below with reference to the drawings. .
1 to 9 show the medical needle safety device 1 of the first invention, FIGS. 10 to 15 show the medical needle safety device 1 ′ of the second invention, and FIGS. 16 to 21 show the medical needle of the third invention. A safety device 1 '' is illustrated.
The medical needle safety device 1 ′, 1 ″ of the second invention / third invention is mainly different from the medical needle safety device 1 of the first invention in that the locking members 40 ′, 40 ″, second The leg 32 'and the fixing member 5' (fixing plate 50 ').

以下、発明の説明、図面において、説明、符号の煩雑化を防ぐために、主として第一発明の医療用針安全装置１について説明する。第二発明・第三発明の医療用針安全装置１´、１´´は、第一発明の医療用針安全装置１と異なる部分のみ説明する。
第二発明・第三発明の医療用針安全装置１´、１´´は、第一発明の医療用針安全装置１と異なる部材のみに、「´」、「´´」または異なる符号を記載した。共通する部材の符号はそのままとした。
本発明の医療用針安全装置１は、図１、３〜７に示すように、針部材２と、シールド部材３と、及び固定部材５とを有する。
針部材２、シールド部材３、及び固定部材５の形態と機能は、以下のとおりである。 Hereinafter, in order to prevent complication of explanation and symbols in the description of the invention and the drawings, the medical needle safety device 1 of the first invention will be mainly described. The medical needle safety device 1 ′, 1 ″ of the second invention and the third invention will be described only with respect to portions different from the medical needle safety device 1 of the first invention.
The medical needle safety device 1 ′, 1 ″ of the second invention or the third invention is described with “′”, “″” or a different symbol only on members different from the medical needle safety device 1 of the first invention. did. The code | symbol of the common member was left as it is.
As shown in FIGS. 1 and 3 to 7, the medical needle safety device 1 of the present invention has a needle member 2, a shield member 3, and a fixing member 5.
The forms and functions of the needle member 2, the shield member 3, and the fixing member 5 are as follows.

[針部材２]
針部材２は、針２１と針ハブ２２を有する。
図４、５、７に例示するように、針２１は、基端ＰＥ側から末端ＤＥ側へ向かう途中から、水平軸線ＨＬに対して、垂直軸線ＶＬ側に所定の角度（例えば、略９０度）で折れ曲がっている。
針２１は、下部Ｄに末端２３を有する。末端２３は下部Ｄ側に、鋭利な尖端を有する。 [Needle member 2]
The needle member 2 has a needle 21 and a needle hub 22.
As shown in FIGS. 4, 5, and 7, the needle 21 has a predetermined angle (for example, approximately 90 degrees) toward the vertical axis VL with respect to the horizontal axis HL from the middle toward the terminal DE side from the base end PE side. ) Is bent.
The needle 21 has a distal end 23 at the lower part D. The end 23 has a sharp point on the lower D side.

末端２３は、垂直軸線ＶＬに対して、若干の角度で、基端ＰＥ側へ向けて、わずかな所定の角度で折れ曲がっている。
針２１の基端ＰＥ側は、管状の針ハブ２２に装着（固定）している。
針２１の末端２３は、患者に植設した薬液注入ポート（図示せず）に穿刺する。針ハブ２２の基端ＰＥ側に接続したチューブＴより、末端２３を経由して患者に薬液を注入する。チューブＴは、通常、薬液バッグ等に接続され、当該バッグより薬液が供給される。
針２１は、患者に薬液を注入し終えた後は、薬液注入ポート（図示せず）より引き抜かれる。 The distal end 23 is bent at a slight predetermined angle toward the proximal end PE at a slight angle with respect to the vertical axis VL.
The proximal end PE side of the needle 21 is attached (fixed) to the tubular needle hub 22.
The distal end 23 of the needle 21 is punctured into a chemical solution injection port (not shown) implanted in the patient. From the tube T connected to the proximal end PE side of the needle hub 22, the drug solution is injected into the patient via the distal end 23. The tube T is usually connected to a chemical solution bag or the like, and the chemical solution is supplied from the bag.
The needle 21 is withdrawn from a chemical solution injection port (not shown) after the chemical solution has been injected into the patient.

［シールド部材３の概要］
シールド部材３とは、患者に薬液を注入し終えた後に、使用後の針２１を収納する部材である。さらに針２１の末端２３が、外に露出しないように保護（シールド）する部材である。シールド部材３は、シールドハブ３５、脚部（３１・３２）、及び係止部材４０を有する。
シールドハブ３５は、針ハブ２２を固定する。
脚部（３１・３２）は、少なくとも二つ以上の脚部（３１・３２）より構成される。すなわち上部Ｕ側の第１脚部３１と下部Ｄ側の第２脚部３２とを、折り畳んだり、伸長することにより、第一の折り畳み位置から第二の伸長位置まで伸長できるように形成している。
脚部（３１・３２）は、患者に薬液を注入し終えた後、第２脚部３２の下部Ｄ側空間内に針２１の末端２３を収納し、封じ込め、保護（シールド）するものである。 [Outline of shield member 3]
The shield member 3 is a member that houses the used needle 21 after the injection of the chemical solution into the patient. Furthermore, the end 23 of the needle 21 is a member that protects (shields) so as not to be exposed to the outside. The shield member 3 includes a shield hub 35, leg portions (31 and 32), and a locking member 40.
The shield hub 35 fixes the needle hub 22.
The leg portions (31, 32) are composed of at least two or more leg portions (31, 32). That is, the first leg 31 on the upper U side and the second leg 32 on the lower D side are formed so that they can be extended from the first folded position to the second extended position by folding or stretching. Yes.
The leg portions (31, 32) are used to store the distal end 23 of the needle 21 in the space on the lower D side of the second leg portion 32, contain it, and protect (shield) it after injecting the drug solution into the patient. .

［固定部材５の概要］
固定部材５は、使用時（針穿刺時）患者の皮膚に固定する部材でもあり、そのため固定プレート５０を有する。
固定プレート５０は、第２脚部３２の下部Ｄ側に配置している。 [Outline of fixing member 5]
The fixing member 5 is also a member that is fixed to the skin of the patient during use (during needle puncture), and therefore has a fixing plate 50.
The fixed plate 50 is disposed on the lower portion D side of the second leg portion 32.

［シールド部材３の各部材の説明］
シールド部材３は、シールドハブ３５と、第１・第２脚部（３１・３２）及び係止部材４０を有する。
シールドハブ３５は、上部Ｕ側に形成している。
第１・第２脚部（３１・３２）は、上部Ｕ側のシールドハブ３５と、下部Ｄ側の固定プレート５０との間に形成している。
係止部材４０は、第１脚部３１の下部Ｄ側と第２脚部３２の上部Ｕ側との間に形成している。 [Description of each member of shield member 3]
The shield member 3 includes a shield hub 35, first and second leg portions (31 and 32), and a locking member 40.
The shield hub 35 is formed on the upper U side.
The first and second legs (31, 32) are formed between the shield hub 35 on the upper U side and the fixed plate 50 on the lower D side.
The locking member 40 is formed between the lower D side of the first leg portion 31 and the upper U side of the second leg portion 32.

［シールドハブ３５］
シールドハブ３５は、針ハブ２２を固定するためのハブである。シールドハブ３５は、針ハブ２２を受け入れる部材として機能する。
シールドハブ３５は、図１、３から６等に例示するように、略管状（略角筒状ないし略円筒状ともいう場合がある）に形成している。
シールドハブ３５は、略管状の針ハブ２２を受け入れ、かつ、その状態で固定できる形状であれば、どのような形状でも良い。
シールドハブ３５は、下部Ｄ側に、基端側ヒンジ３７を介して第１脚部３１の上部Ｕ側を接続している。 [Shield hub 35]
The shield hub 35 is a hub for fixing the needle hub 22. The shield hub 35 functions as a member that receives the needle hub 22.
The shield hub 35 is formed in a substantially tubular shape (sometimes referred to as a substantially rectangular tube shape or a substantially cylindrical shape) as illustrated in FIGS.
The shield hub 35 may have any shape as long as it can receive the substantially tubular needle hub 22 and can be fixed in that state.
The shield hub 35 connects the upper U side of the first leg portion 31 to the lower D side via a proximal end hinge 37.

シールドハブ３５は、第１側部Ｓ１と第２側部Ｓ２に、それぞれ翼３４Ｓ１、３４Ｓ２を接続している。翼３４Ｓ１、３４Ｓ２は、（シールドハブ３５が受け入れ固定化された）針２１を上部Ｕ方向にひきあげるときの取手として機能する。
翼３４Ｓ１、３４Ｓ２とシールドハブ３５は、図１、３、６等に例示するようにヒンジ３４Ｈ（肉薄で板状）を介して接続している。これにより、翼３４、３４の第１側部Ｓ１と第２側部Ｓ２を指でつかんで、翼３４Ｓ１、３４Ｓ２を上部Ｕ方向に折り曲げて、第１・第２脚部（３１・３２）を第一の折り畳み位置から第二の伸長位置まで伸長するときに針２１を上部Ｕ方向に引き上げることができる。 The shield hub 35 has blades 34S1 and 34S2 connected to the first side S1 and the second side S2, respectively. The wings 34S1 and 34S2 function as handles when the needle 21 (with the shield hub 35 received and fixed) is pulled up in the upper U direction.
The blades 34S1, 34S2 and the shield hub 35 are connected via a hinge 34H (thin and plate-like) as illustrated in FIGS. Accordingly, the first side S1 and the second side S2 of the wings 34, 34 are grasped with fingers, the wings 34S1, 34S2 are bent in the upper U direction, and the first and second legs (31, 32) are When extending from the first folding position to the second extension position, the needle 21 can be pulled up in the upper U direction.

シールドハブ３５は下部Ｄ側に突部３５Ｔを突設している。突部３５Ｔは、後述する固定プレート５０の末端壁５２の溝５２Ｍに嵌合（係合）する。
なお第二発明・第三発明の医療用針安全装置１´、１´´は、シールドハブ３５´の下部Ｄ側に突部３５Ｔを突設していない。図面上（図１０、図１６）では、突部３５Ｔを突設していないが、第一発明と同様に突設することもできる。
シールドハブ３５は、針ハブ２２を固定でき、脚部（３１・３２）が第一の折り畳み位置から第二の伸長位置まで伸長するときに、脚部（３１・３２）と連動して、針２１を上部Ｕ方向に引き上げることができる形態であればよい。 The shield hub 35 is provided with a protrusion 35T on the lower D side. The protrusion 35T is fitted (engaged) with a groove 52M of the end wall 52 of the fixing plate 50 described later.
Note that the medical needle safety devices 1 ′ and 1 ″ according to the second and third inventions do not project the protrusion 35T on the lower part D side of the shield hub 35 ′. On the drawings (FIGS. 10 and 16), the projecting portion 35T is not provided, but can be provided as in the first invention.
The shield hub 35 can fix the needle hub 22, and when the leg portion (31, 32) extends from the first folded position to the second extended position, the needle hub 22 is interlocked with the leg portion (31, 32). Any form that can pull up 21 in the upper U direction is acceptable.

［第１・第２脚部（３１・３２）］
第１・第２脚部（３１・３２）は、第一の折り畳み位置（第一の状態）から第二の伸長位置（第二の状態）まで伸長できるように形成している。
第１・第２脚部（３１・３２）は、第一の折り畳み位置から第二の伸長位置に伸長するときに、針２１が連動して動く。第１・第２脚部（３１・３２）は、固定プレート５０と針２１のいわゆる「引き綱」のような機能を有する。
第１・第２脚部（３１・３２）が、第二の伸長位置まで伸長し終えたときに、針２１と末端２３は、第２脚部３２の下部Ｄ側空間内に引き込まれる（収納される。） [First and second legs (31, 32)]
The first and second leg portions (31, 32) are formed so as to be able to extend from the first folding position (first state) to the second extension position (second state).
When the first and second legs (31, 32) extend from the first folding position to the second extension position, the needle 21 moves in conjunction with the first and second legs (31, 32). The first and second legs (31, 32) have a function like a so-called “pull” of the fixing plate 50 and the needle 21.
When the first and second legs (31, 32) have been extended to the second extension position, the needle 21 and the distal end 23 are drawn into the lower D-side space of the second leg 32 (storage). )

第１・第２脚部（３１・３２）は、図３〜９に例示するように、二つの部材を折り畳んだ形態から伸長できる形態に形成している。
第１脚部３１は、上部Ｕ側に配置している。第２脚部３２は、下部Ｄ側に配置している。
第１・第２脚部（３１・３２）は、それぞれ第１側部Ｓ１側と第２側部Ｓ２側とで、対で形成している。第１脚部３１Ｓ１、３１Ｓ２は、上部側ヒンジ３７を介して、シールドハブ３５の下部Ｄ側と接続している。
第２脚部３２Ｓ１、３２Ｓ２は、下部側ヒンジ３８を介して、固定プレート５０と接続している。 As illustrated in FIGS. 3 to 9, the first and second leg portions (31, 32) are formed in a form in which two members can be extended from a folded form.
The first leg portion 31 is disposed on the upper U side. The second leg portion 32 is disposed on the lower portion D side.
The first and second leg portions (31, 32) are formed in pairs on the first side portion S1 side and the second side portion S2 side, respectively. The first leg portions 31 S 1 and 31 S 2 are connected to the lower D side of the shield hub 35 via the upper hinge 37.
The second leg portions 32S1 and 32S2 are connected to the fixed plate 50 via the lower hinge 38.

第１脚部３１と第２脚部３２とは、第１脚部３１の下部Ｄ側に位置し、かつ、第２脚部３１の上部Ｕ側に位置する中間ヒンジ３９を介して接続している。
以上の本発明の説明で、「脚部」は、「第１・第２脚部（３１・３２）」と記載し、二つの部材を使用して、これらを折り畳んだ形態から伸張できる形態について例示したが、二つ以上の部材を折り畳んだ形態から伸張できる形態にしてもよい。 The first leg 31 and the second leg 32 are connected via an intermediate hinge 39 located on the lower D side of the first leg 31 and located on the upper U side of the second leg 31. Yes.
In the above description of the present invention, “leg part” is described as “first / second leg part (31/32)”, and it is possible to use two members to extend them from a folded form. Although illustrated, you may make it the form which can expand | extend from the form which folded two or more members.

要するに、「第一の状態」（脚部が完全に折り畳まれた位置にある状態、換言すれば、脚部が完全に折り畳まれた状態で、針２１の末端２３が保護（シールド）されていない状態、例えば、図４等参照）から「第二の状態」（脚部が完全に伸長された位置にある状態、換言すれば、脚部が完全に伸張された状態で、針２１の末端２３が保護（シールド）されている状態、例えば、図７等参照）にできる形態（形状、構造、材料）に形成できればよい。
図３〜図５の例示では、いわゆる「略板状」のものが記載されているが、いわゆる「紐状、棒状、帯状、鎖状」等のものでも良い。 In short, the “first state” (the state in which the leg is in a fully folded position, in other words, the state in which the leg is completely folded and the end 23 of the needle 21 is not protected (shielded)). From the state, for example, see FIG. 4 etc., the “second state” (the state in which the leg is in the fully extended position, in other words, the state in which the leg is fully extended, the distal end 23 of the needle 21 Can be formed in a form (shape, structure, material) that can be protected (shielded), for example, see FIG.
In the illustrations of FIGS. 3 to 5, what is called “substantially plate-like” is described, but what is called “string-like, rod-like, belt-like, chain-like” or the like may be used.

第二発明・第三発明の医療用針安全装置１´、１´´は、第２脚部３２´の上部Ｕ側に、側壁４０．２Ｗを延設している。
さらにいえば、末端側の側壁４０．２ＷＤＥと基端側の側壁４０．２ＷＰＥを一対形成している。側壁４０．２Ｗは、いわゆる「略矩形状」に形成している。
第二発明の医療用針安全装置１´は、末端側の側壁４０．２ＷＤＥと基端側の側壁４０．２ＷＰＥとの間に、空間３２ＳＯ´を形成している。（図１３参照。）
空間３２ＳＯ´に第１脚部３１の下部Ｄ側を嵌入（嵌合）するようにしている。 The medical needle safety device 1 ′, 1 ″ of the second and third inventions has a side wall 40.2W extending on the upper U side of the second leg portion 32 ′.
More specifically, a pair of a side wall 40.2 WDE on the distal side and a side wall 40.2 WPE on the proximal side are formed. The side wall 40.2W is formed in a so-called “substantially rectangular shape”.
In the medical needle safety device 1 'of the second invention, a space 32SO' is formed between the distal side wall 40.2WDE and the proximal side wall 40.2WPE. (See FIG. 13)
The lower D side of the first leg portion 31 is fitted (fitted) into the space 32SO ′.

第三発明の医療用針安全装置１´´は、さらに末端側の側壁４０．２ＷＤＥと基端側の側壁４０．２ＷＰＥの第１側部Ｓ１側を閉じて結合する壁４０．３Ｗを形成している。（図１９参照）壁４０．３Ｗは、いわゆる「略板状」に形成している。
第三発明の医療用針安全装置１´´は、末端側の側壁４０．２ＷＤＥ、基端側の側壁４０．２ＷＰＥ及び第１側部Ｓ１側の壁４０．３Ｗにより、溝４０．２Ｍを形成している。（図１９参照）
溝４０．２Ｍに、第１脚部３１の下部Ｄ側（後述する第１係止部４０．１´´）を嵌入（嵌合）するようにしている。 The medical needle safety device 1 '' of the third invention further forms a wall 40.3W that closes and joins the first side S1 side of the distal side wall 40.2WDE and the proximal side wall 40.2WPE. ing. (See FIG. 19) The wall 40.3W is formed in a so-called “substantially plate shape”.
The medical needle safety device 1 ″ of the third invention forms a groove 40.2M by the side wall 40.2WDE on the distal side, the side wall 40.2WPE on the proximal side, and the wall 40.3W on the first side S1 side. doing. (See Figure 19)
The lower D side of the first leg portion 31 (first locking portion 40.1 ″ to be described later) is fitted (fitted) into the groove 40.2M.

［係止部材４０］
係止部材４０は、「第二の状態」にしたときに、「第二の状態」から「第一の状態」に戻ろうとする動きを阻止する機能を果たす部材である。
係止部材４０は、第１係止部４０．１と第２係止部４０．２とを有する。
第１係止部４０．１は、第２係止部４０．２と係合する側に係止端４０．１Ｔを形成している。
第２係止部４０．２は、前記係止端４０．１Ｔと係合する側の縁部に複数の突部４０Ｔを形成している。当該突部４０Ｔの間に溝４０Ｍを形成している。 [Locking member 40]
The locking member 40 is a member that functions to prevent a movement from returning from the “second state” to the “first state” when in the “second state”.
The locking member 40 has a first locking portion 40.1 and a second locking portion 40.2.
The 1st latching | locking part 40.1 forms the latching end 40.1T in the side engaged with the 2nd latching | locking part 40.2.
The 2nd latching | locking part 40.2 forms the some protrusion 40T in the edge part of the side engaged with the said latching end 40.1T. A groove 40M is formed between the protrusions 40T.

以下、図２の例示で詳述する。
第１係止部４０．１は、第１脚部３１Ｓ２の下部Ｄ側に形成している。
第１係止部４０．１は、末端ＤＥ方向から基端ＰＥ方向に見て、（いわゆる）「略三角板状」に形成している。
第１係止部４０．１は、下部Ｄ方向に先細りに形成している。
第１係止部４０．１は、下部Ｄ端部が（いわゆる）「係止端４０．１Ｔ」となっている。係止端４０．１Ｔは、（以下、後述する）第２係止部４０．２に係止する。
また第１係止部４０．１は、（下部Ｄ方向に先細りの「係止端４０．１Ｔ」にかえて）「フック状」、「鍵爪状」等に形成してもよい。 This will be described in detail below with reference to FIG.
The first locking part 40.1 is formed on the lower part D side of the first leg part 31S2.
The first locking portion 40.1 is formed in a (so-called) “substantially triangular plate shape” as viewed from the terminal DE direction to the base PE direction.
The first locking portion 40.1 is tapered in the lower D direction.
As for the 1st latching | locking part 40.1, the lower part D edge part is (what is called) "locking end 40.1T." The locking end 40.1T is locked to a second locking portion 40.2 (which will be described later).
The first locking portion 40.1 may be formed in a “hook shape”, a “key claw shape” or the like (in place of the “locking end 40.1T” tapered in the lower D direction).

第２係止部４０．２は、［製造（成形）後の状態）は]、第２脚部３２の上部Ｕ側で、かつ第１側部Ｓ１方向に突設している。
第２係止部４０．２は、末端ＤＥ方向から基端ＰＥ方向に見て、（いわゆる）「略Ｌ字状」に形成している。
第２係止部４０．２は、第２側部Ｓ２側の一端がヒンジ４０Ｈにより、第２脚部３２の上部Ｕ側に繋がっている。
第２係止部４０．２は、第１側部Ｓ１側で、かつ下部Ｕ側の一端は、「略半円周状」に形成している。外周に複数の突部４０Ｔを、断続的に形成している。
各突部４０Ｔの間には、所定の間隔で溝４０Ｍを設けている。 The 2nd latching | locking part 40.2 protrudes in the 1st side part S1 direction in the upper part U side of the 2nd leg part 32 [the state after manufacture (molding)].
The second locking portion 40.2 is formed in a (so-called) “substantially L shape” when viewed from the terminal DE direction to the base end PE direction.
One end of the second locking portion 40.2 on the second side portion S2 side is connected to the upper U side of the second leg portion 32 by a hinge 40H.
The second locking portion 40.2 is formed in a “substantially semicircular shape” at one end on the first side S1 side and on the lower U side. A plurality of protrusions 40T are intermittently formed on the outer periphery.
Between each protrusion 40T, the groove | channel 40M is provided with the predetermined | prescribed space | interval.

図２の例示では、係止部材４０は、第２側部Ｓ２側の第１脚部３１と第２脚部３２との間に形成しているが、第１側部Ｓ１側の第１脚部３１と第２脚部３２との間に形成してもよい。
また係止部材４０は、第１側部Ｓ１側と第２側部Ｓ２側の第１脚部３１と、第１側部Ｓ１側と第２側部Ｓ２側の第２脚部３２との間に対となるよう形成してもよい。対となるよう形成することにより、第２状態での第１・第２脚部（３１・３２）が、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのをより確実に阻止することができる。 In the illustration of FIG. 2, the locking member 40 is formed between the first leg portion 31 and the second leg portion 32 on the second side portion S2 side, but the first leg on the first side portion S1 side. You may form between the part 31 and the 2nd leg part 32. FIG.
The locking member 40 includes a first leg 31 on the first side S1 side and a second side S2 side, and a second leg 32 on the first side S1 side and the second side S2 side. You may form so that it may become a pair. By forming a pair, the first and second legs (31, 32) in the second state are more likely to return from the second state (fully extended state) to the first state. It can be reliably prevented.

図２の例示では、第１係止部４０．１は、第１脚部３１の下部Ｄ側に形成しているように記載したが、第２脚部３１の上部Ｕ側に形成してもよい。
第１係止部４０．１は、図２に例示した形態に限定されることはなく、第２係止部４０．２と係合でき、本願発明の目的を達成できる形態であればよい。
例えば「略三角板状」に代えて、いわゆる「略菱形」「略円形」「略楕円形」「略扇形」、「略矩形」等でもよい。要するに一端に前記係止端４０．１Ｔに相当する部分を含み、第２係止部４０．２と係合できる形態であれば何でもよい。 In the illustration of FIG. 2, the first locking portion 40.1 is described as being formed on the lower portion D side of the first leg portion 31, but may be formed on the upper U side of the second leg portion 31. Good.
The 1st latching | locking part 40.1 is not limited to the form illustrated in FIG. 2, What is necessary is just a form which can engage with the 2nd latching | locking part 40.2 and can achieve the objective of this invention.
For example, instead of “substantially triangular plate shape”, so-called “substantially diamond shape”, “substantially circular shape”, “substantially elliptic shape”, “substantially fan shape”, “substantially rectangular shape”, etc. may be used. In short, any form that includes a portion corresponding to the locking end 40.1T at one end and can be engaged with the second locking portion 40.2 is acceptable.

図２の例示では、第２係止部４０．２は、[（製造（成形）後の状態）は]、第２脚部３２の上部Ｕ側に形成しているように記載したが、第１脚部３１の下部Ｄ側に形成してもよい。
第２係止部４０．２は、図２に例示した形態「略Ｌ字状」、複数の突部４０Ｔ、溝４０Ｍに限定されることはなく、第１係止部４０．１と係合でき、本願発明の目的を達成できる形態であればよい。例えば「略Ｌ字状」に代えて、「略Ｖ字状」、「略菱形」「略円形」「略楕円形」「略扇形」、「略矩形」等でもよい。
また第２係止部４０．２は、第１係止部４０．１にあわせて、「フック状」、「鍵爪状」等に形成してもよい。 In the illustration of FIG. 2, the second locking portion 40.2 is described as being formed on the upper U side of the second leg portion 32 [(the state after manufacture (molding))] You may form in the lower part D side of the 1 leg part 31. FIG.
The 2nd latching | locking part 40.2 is not limited to the form "substantially L-shaped" illustrated in FIG. 2, the some protrusion 40T, and the groove | channel 40M, It engages with the 1st latching | locking part 40.1. Any form that can achieve the object of the present invention can be used. For example, instead of “substantially L-shaped”, “substantially V-shaped”, “substantially diamond-shaped”, “substantially circular”, “substantially oval”, “substantially fan-shaped”, “substantially rectangular”, etc. may be used.
Further, the second locking portion 40.2 may be formed in a “hook shape”, a “key claw shape” or the like in accordance with the first locking portion 40.1.

第二発明の医療用針安全装置１´は、前記係止部材４０に代えて第二の係止部材４０´を有する。以下、単に係止部材４０´と記載する場合がある。
係止部材４０´は、第１係止部４０．１´と第２係止部４０．２´とを有する。
第１係止部４０．１´は、第２係止部４０．２´と係合する側に突設している。第２係止部４０．２´は、第１係止部４０．１´と係合する側に突設している。 The medical needle safety device 1 ′ of the second invention has a second locking member 40 ′ instead of the locking member 40. Hereinafter, it may be simply described as a locking member 40 '.
The locking member 40 ′ has a first locking part 40.1 ′ and a second locking part 40.2 ′.
1st latching | locking part 40.1 'protrudes in the side engaged with 2nd latching | locking part 40.2'. 2nd latching | locking part 40.2 'protrudes in the side engaged with 1st latching | locking part 40.1'.

以下、図１０〜１５の例示で詳述する。
第１係止部４０．１´は、第１脚部３１Ｓ２の下部Ｄ側に形成している。
第１係止部４０．１´は、基端ＰＥ方向から末端ＤＥ方向に突設している。
第１係止部４０．１´は、末端ＤＥ方向から基端ＰＥ方向に見て、（いわゆる）「略矩形状」に形成している。
第１係止部４０．１´は、第１側部Ｓ１方向から第２側部Ｓ２方向に見ても、第２側部Ｓ２方向から第１側部Ｓ１方向に見ても、（いわゆる）「略矩形状」に形成している。
第１係止部４０．１´は、下部Ｄ端部が（以下、後述する）第２係止部４０．２´に係止する。 Hereinafter, it will be described in detail with reference to FIGS.
1st latching | locking part 40.1 'is formed in the lower part D side of 1st leg part 31S2.
1st latching | locking part 40.1 'protrudes in the terminal DE direction from the base end PE direction.
The first locking part 40.1 ′ is formed in a (so-called) “substantially rectangular shape” when viewed from the terminal DE direction to the base PE direction.
The first locking portion 40.1 ′ can be seen from the first side S1 direction to the second side S2 direction, or from the second side S2 direction to the first side S1 direction (so-called). It is formed in a “substantially rectangular shape”.
As for 1st latching | locking part 40.1 ', lower D edge part latches to 2nd latching | locking part 40.2' (it mentions later).

第２係止部４０．２´は、第２脚部３２´の末端ＤＥ側の側壁４０．２ＷＤＥ側で、第１側部Ｓ１方向に突設している。
第２係止部４０．２´は、末端ＤＥ方向から基端ＰＥ方向に見て、（いわゆる）「略扇状」で「略板状」に形成している。 The 2nd latching | locking part 40.2 'protrudes in the 1st side part S1 direction by the side wall 40.2WDE side by the side of the terminal DE of 2nd leg part 32'.
The second locking portion 40.2 'is formed in a (substantially fan-like) and "substantially plate-like" shape when viewed from the distal DE direction to the proximal PE direction.

第三発明の医療用針安全装置１´´は、前記係止部材４０に代えて第三の係止部材４０´´を有する。以下、単に係止部材４０´´と記載する場合がある。
係止部材４０´´は、第１係止部４０．１´´と第２係止部４０．２´´とを有する。
第１係止部（４０．１´´）は、第２係止部（４０．２´´）と係合する位置に形成している。
第２係止部（４０．２´´）は、第１係止部（４０．１´´）と係合する位置に形成している。 The medical needle safety device 1 ″ of the third invention has a third locking member 40 ″ instead of the locking member 40. Hereinafter, it may be simply referred to as a locking member 40 ″.
The locking member 40 ″ has a first locking portion 40.1 ″ and a second locking portion 40.2 ″.
The first locking portion (40.1 ″) is formed at a position that engages with the second locking portion (40.2 ″).
The second locking portion (40.2 ″) is formed at a position that engages with the first locking portion (40.1 ″).

以下、図１６〜２１の例示で詳述する。
第１係止部４０．１´´は、第１脚部３１の下部Ｄ側に形成している。
第１係止部４０．１´´は、段部４０．１Ｄと下部壁４０．１ＤＷとを有する。
段部４０．１Ｄは、第１脚部３１下部Ｄ側に形成している。
下部壁４０．１ＤＷは、段部４０．１Ｄよりも下部Ｄ側〜下部Ｄ端部にわたって形成している。
下部壁４０．１ＤＷの厚みは、第１脚部３１本体（段部４０．１Ｄよりも上部Ｕ側）
よりも薄肉に形成している。
下部壁４０．１ＤＷの下部Ｄ端部はヒンジ４０．１Ｈにより、第２係止部４０．２´´の下部Ｄ端部（溝４０．２Ｍ）と繋がっている。 Hereinafter, it will be described in detail with reference to FIGS.
The first locking portion 40.1 ″ is formed on the lower portion D side of the first leg portion 31.
1st latching | locking part 40.1 '' has step part 40.1D and lower wall 40.1DW.
The step portion 40.1D is formed on the lower portion D side of the first leg portion 31.
The lower wall 40.1DW is formed from the lower D side to the lower D end than the step 40.1D.
The thickness of the lower wall 40.1DW is the first leg 31 main body (upper U side than the step 40.1D).
It is formed thinner than.
A lower D end portion of the lower wall 40.1DW is connected to a lower D end portion (groove 40.2M) of the second locking portion 40.2 ″ by a hinge 40.1H.

第２係止部４０．２´´は、前記した側壁４０．２Ｗ、壁４０．３Ｗ、溝４０．２Ｍを有する。
壁４０．３Ｗの上部Ｕ側端部、すなわち縁部４０．２Ｆは、第１係止部４０．１´´の段部４０．１Ｄに当接する。 The 2nd latching | locking part 40.2 '' has the above-mentioned side wall 40.2W, wall 40.3W, and groove | channel 40.2M.
The upper U side end of the wall 40.3W, that is, the edge 40.2F abuts on the step 40.1D of the first locking portion 40.1 ″.

［固定部材５の各部材の説明］
固定部材５は、前記したように使用時（針穿刺時）患者の皮膚に固定する部材でもあり、そのため平らな固定プレート５０を有する。固定プレート５０は、患者の皮膚に密着して固定しやすいように平らな接触面を有する。このため「平らな接触面」、「平らな接触面板」という場合がある。
固定プレート５０は、図６の例示ではいわゆる「略板状」に形成している。
固定プレート５０は、略中央部５０Ｃは、針の通路５１を形成している。 [Description of each member of fixing member 5]
As described above, the fixing member 5 is also a member that is fixed to the patient's skin during use (during needle puncture), and thus has a flat fixing plate 50. The fixing plate 50 has a flat contact surface so that it can be fixed in close contact with the patient's skin. For this reason, it may be referred to as “flat contact surface” or “flat contact surface plate”.
The fixing plate 50 is formed in a so-called “substantially plate shape” in the example of FIG. 6.
The fixed plate 50 has a substantially central portion 50 C forming a needle passage 51.

略中央部５０Ｃは、第１側部Ｓ１側５０Ｓ１と第２側部Ｓ２側５０Ｓ２よりも、
幅（末端ＤＥ‐基端ＰＥ方向）を狭く形成している。
第１側部Ｓ１側５０Ｓ１と第２側部Ｓ２側５０Ｓ２は、略中央部５０Ｃよりも幅（末端ＤＥ‐基端ＰＥ方向）を広く形成している。
固定プレート５０は、前記形状以外にも円形、楕円形等でもよい。また固定プレート５０は、例えば硬質プラスチック（例えばポリエチレン、ポリプロピレン）等の材料より形成する。
また固定プレート５０は、図６に例示するように、略中央部５０Ｃの末端ＤＥ側に、略板状の末端壁５２を立設している。針２１の末端２３を第２脚部３２下部に収納するとき、末端２３に付着した血液等が、末端壁５２と第２脚部３２下部Ｄ側により、
外部に飛散するのを妨げることができる。
末端壁５２の上部Ｕ側に、溝５２Ｍを形成している。溝５２Ｍは、前記シールドハブ３５の突部３５Ｔと嵌合（係合）する。これにより第一の状態を維持しやすくしている。 The substantially central portion 50C is more than the first side portion S1 side 50S1 and the second side portion S2 side 50S2.
The width (terminal DE-base PE direction) is narrow.
The first side S1 side 50S1 and the second side S2 side 50S2 are formed to have a width (in the direction of the terminal DE-base end PE) wider than the substantially central part 50C.
The fixed plate 50 may be circular, elliptical, or the like other than the above shape. The fixing plate 50 is made of a material such as hard plastic (for example, polyethylene or polypropylene).
Further, as illustrated in FIG. 6, the fixing plate 50 has a substantially plate-like end wall 52 erected on the terminal DE side of the substantially central portion 50 C. When the distal end 23 of the needle 21 is stored in the lower portion of the second leg portion 32, blood or the like adhering to the distal end 23 is caused by the end wall 52 and the second leg portion 32 lower portion D side.
Can be prevented from splashing outside.
On the upper U side of the end wall 52, a groove 52M is formed. The groove 52M is fitted (engaged) with the protrusion 35T of the shield hub 35. This makes it easy to maintain the first state.

第二発明・第三発明の医療用針安全装置１´、１´´は、図面上（図１０、図１６）では、末端壁５２、溝５２Ｍを形成していないが、第一発明と同様に形成することもできる。
固定プレート５０´は、全体を略矩形状に形成し、末端ＤＥ側に、末端壁５２を形成していない。図面上（図１０、図１６）全体を略矩形状に形成しているが、第一発明と同形状に形成することもできる。 The medical needle safety devices 1 ′ and 1 ″ of the second and third inventions do not have the end wall 52 and the groove 52M on the drawings (FIGS. 10 and 16), but are the same as the first invention. It can also be formed.
The fixed plate 50 'is formed in a substantially rectangular shape as a whole, and the end wall 52 is not formed on the end DE side. Although the entire figure (FIGS. 10 and 16) is formed in a substantially rectangular shape, it can also be formed in the same shape as the first invention.

医療用針安全装置１を構成する、シールド部材３、固定部材５は、同一材料で一体成形により形成しているので、製造が容易で引用文献１に記載の発明と比較して安価に製造できる。
シールド部材３は、シールドハブ３５、脚部（３１・３２）を、同一材料で一体成形により形成することが好ましい。
固定部材５（固定プレート５０）は、同一材料で一体成形により形成することが好ましい。 Since the shield member 3 and the fixing member 5 constituting the medical needle safety device 1 are formed of the same material by integral molding, they are easy to manufacture and can be manufactured at a lower cost than the invention described in the cited document 1. .
The shield member 3 is preferably formed by integrally molding the shield hub 35 and the legs (31, 32) with the same material.
The fixing member 5 (fixing plate 50) is preferably formed of the same material by integral molding.

シールド部材３や固定部材５の材料は、射出成形や注形成型できる合成樹脂で形成することが好ましく、例えばＰＥ（ポリエチレン）、ＰＰ（ポリプロピレン）、ＰＢ（ポリブチレン）、ＰＳ（ポリスチレン）、ＰＶＣ（ポリ塩化ビニル）、ＰＶｄＣ（ポリビニリデンクロライド）、ＰＭＭＡ（ポリメチルメタクリレート）、ＰＭＡ（ポリメチルアクリレート）、ＰＣ（ポリカーボネート）、ＰＡｍ（ポリアミド）、ＥＴＦＥ共重合体等があげられるが、これに限定されるものではない。 The material of the shield member 3 and the fixing member 5 is preferably formed of a synthetic resin that can be injection-molded or casted. For example, PE (polyethylene), PP (polypropylene), PB (polybutylene), PS (polystyrene), PVC ( (Polyvinyl chloride), PVdC (polyvinylidene chloride), PMMA (polymethyl methacrylate), PMA (polymethyl acrylate), PC (polycarbonate), PAm (polyamide), ETFE copolymer, and the like. It is not something.

以下、第一発明〜第三発明の医療用針安全装置１、１´、１´´の使用例について説明する。
（第一発明の使用例）
［第一の状態への組み立て：シールド部材３と固定部材５との組み立て]
〈１〉図１（図２）の状態（成形後）から、第２係止部４０．２をヒンジ４０Ｈにより第２側部Ｓ２方向に回動させて、上部Ｕ方向に倒立させる。すなわち第２脚部３２Ｓ２の上部Ｕ側空間３２ＳＯ内に格納する。
〈２〉針ハブ２２を、シールド部材３のシールドハブ３５（の円筒形状空隙部３５Ｓ）に差し込んで固定する。 Hereinafter, usage examples of the medical needle safety device 1, 1 ′, 1 ″ of the first invention to the third invention will be described.
(Usage example of the first invention)
[Assembly to first state: assembly of shield member 3 and fixing member 5]
<1> From the state of FIG. 1 (FIG. 2) (after molding), the second locking portion 40.2 is rotated in the direction of the second side portion S2 by the hinge 40H and inverted in the upper U direction. That is, it is stored in the upper U-side space 32SO of the second leg portion 32S2.
<2> The needle hub 22 is inserted into the shield hub 35 (the cylindrical gap 35S thereof) of the shield member 3 and fixed.

〈３〉図３〜図５に示すように、脚部（３１、３２）を折り畳んで、「第一の状態」（第一の折り畳み位置）にして、針２１を、針の通路５１に差し込む。
シールドハブ３５の突起部３５Ｔは、固定プレート５０の末端壁５２の溝５２Ｍに嵌合する。
第１係止部４０．１の係止端４０．１Ｔは、図３のように、突部４０Ｔの第１側部Ｓ１側で係止されている。
〈４〉針２１の末端２３は、固定プレート５０よりも下部Ｄ側に露出する。露出した針２１に、針カバー（図示せず）を装着する。 <3> As shown in FIGS. 3 to 5, the legs (31, 32) are folded to the “first state” (first folding position), and the needle 21 is inserted into the needle passage 51. .
The protruding portion 35T of the shield hub 35 is fitted in the groove 52M of the end wall 52 of the fixing plate 50.
The locking end 40.1T of the first locking part 40.1 is locked on the first side S1 side of the protrusion 40T as shown in FIG.
<4> The distal end 23 of the needle 21 is exposed on the lower D side from the fixed plate 50. A needle cover (not shown) is attached to the exposed needle 21.

［針２１の末端２３の保護（シールド）]
〈５〉「移行開始状態」（図６）
針部材２１（図６では図示せず）を、垂直軸線ＶＬに沿って上部Ｕ側に持ち上げると、第１・第２脚部（３１・３２）がこれに連動して、垂直軸線ＶＬの上部Ｕ側に伸長を開始する。
さらにこれに連動して、第１係止部４０．１の係止端４０．１Ｔは、図３から図６のように、突部４０Ｔと溝４０Ｍを交互に乗り越えて、第１側部Ｓ１側から第２側部Ｓ２側に移動する。 [Protection of end 23 of needle 21 (shield)]
<5> “Transition start state” (FIG. 6)
When the needle member 21 (not shown in FIG. 6) is lifted to the upper portion U side along the vertical axis VL, the first and second legs (31, 32) are interlocked with the upper portion of the vertical axis VL. Start stretching on the U side.
Further, in conjunction with this, the locking end 40.1T of the first locking portion 40.1 passes over the protrusions 40T and the grooves 40M alternately as shown in FIGS. Moves from the side to the second side S2 side.

〈６〉「移行終了状態」
第１・第２脚部（３１・３２）は、垂直軸線ＶＬの上部Ｕ側に伸びきろうとする。
図８に示すように、第２脚部３２が垂直方向に立ち上がるにつれて、第１係止部４０．１の係止端４０．１Ｔは、図８のように、第１側部Ｓ１側から第２側部Ｓ２側に移動する。 <6> “Transition end state”
The first and second legs (31, 32) tend to extend toward the upper portion U of the vertical axis VL.
As shown in FIG. 8, as the second leg portion 32 rises in the vertical direction, the locking end 40.1T of the first locking portion 40.1 is changed from the first side portion S1 side as shown in FIG. Move to the 2 side S2 side.

〈７〉（第二の状態）（図８）
第１・第２脚部（３１・３２）は、垂直軸線ＶＬの上部Ｕ側に完全に伸びきる。
図８に示すように、第１係止部４０．１の係止端４０．１Ｔは、図８のように、第１側部Ｓ１側から第２側部Ｓ２側に移動して、複数の突部４０Ｔを、逐次乗り越えて、第２側部Ｓ２側端部（上部Ｕ側）で係止する。
図８のように、第２係止部４０．２は、第二の状態のときは、第１脚部３１、第２脚部３２の長手Ｌ方向に沿って立ち上がっているので、第１係止部４０．１の係止端４０．１Ｔは、第２係止部４０．２の上部Ｕ側で係止される。
係止端４０．１Ｔは、第１・第２脚部（３１・３２）の第二の状態（完全に伸びきった状態）と平行になって、突部４０Ｔを逆に乗り越える方向（図８では第１側部Ｓ１方向）に動くことはない。
これにより、第１・第２脚部（３１・３２）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。 <7> (Second state) (FIG. 8)
The first and second legs (31, 32) extend completely toward the upper portion U of the vertical axis VL.
As shown in FIG. 8, the locking end 40.1T of the first locking portion 40.1 moves from the first side S1 side to the second side S2 side as shown in FIG. The protrusion 40T is sequentially overcome and locked at the second side S2 side end (upper U side).
As shown in FIG. 8, in the second state, the second locking portion 40.2 rises along the longitudinal L direction of the first leg portion 31 and the second leg portion 32. The locking end 40.1T of the locking part 40.1 is locked on the upper U side of the second locking part 40.2.
The locking end 40.1T is parallel to the second state (completely extended state) of the first and second leg portions (31, 32), and reversely climbs over the protrusion 40T (FIG. 8). Then, it does not move in the first side portion S1 direction.
Accordingly, the first and second leg portions (31, 32) can be prevented from returning from the second state (completely extended state) to the first state.

さらに、患者への取付け、薬液の注入、患者からの取外しと廃棄までの使用例について説明する。
［患者への取り付け、薬液の注入]
〈１〉第一の状態において針先には針カバー（図示せず）が取り付けられ保護されている。使用に際しては、針カバー（図示せず）を、取り外して、針２１の末端２３を露出する。
〈２〉垂直軸線ＶＬの下部Ｄ方向に垂下して、患者に埋め込まれたポート（図示せず）へ針２１の末端２３を穿刺する。固定部材５の固定プレート５０（平らな接触面）を、テープ等で患者に固定する。
〈３〉抗癌等を含んだ薬液等を、針ハブ２２の基端ＰＥ側に接続された薬液注入チューブ（図示せず）から薬液等を、針２１の末端２３、ポート（図示せず）を経由して、注入する。このように第一の状態で輸液等が行われる。 Furthermore, an example of use up to attachment to a patient, injection of a chemical solution, removal from the patient and disposal will be described.
[Patient attachment, injection of chemicals]
<1> In the first state, a needle cover (not shown) is attached and protected to the needle tip. In use, the needle cover (not shown) is removed to expose the distal end 23 of the needle 21.
<2> It hangs down in the direction of the lower part D of the vertical axis VL, and punctures the distal end 23 of the needle 21 into a port (not shown) implanted in the patient. The fixing plate 50 (flat contact surface) of the fixing member 5 is fixed to the patient with tape or the like.
<3> A drug solution containing anti-cancer or the like is supplied from a drug solution injection tube (not shown) connected to the proximal end PE side of the needle hub 22, and a drug solution is supplied from the distal end 23 of the needle 21 and a port (not shown). Via, inject. Thus, infusion or the like is performed in the first state.

［患者からの取外しと廃棄まで]
薬液の注入が終了したら、作業者（医師、看護士等）は、一方の手を患者の皮膚に当て、もう一方の手で翼部３４を、つかんで上部Ｕに持ち上げる。
これにより、ポート（図示せず）から針２１の末端２３が引き出され、第１・第２脚部（３１・３２）を伸長させる。第１・第２脚部（３１・３２）が伸長中、針２１の末端２３は、上部方向に移動する。
第１・第２脚部（３１・３２）は、垂直軸線ＶＬに沿うように上部Ｕ側に伸びきろうとする。
図６に示すように、第２脚部３２が垂直方向に立ち上がるにつれて、第１係止部４０．１の係止端４０．１Ｔは、図８のように、第１側部Ｓ１側から第２側部Ｓ２側に移動して、複数の突部４０Ｔを、逐次乗り越える。 [Until removal from patient and disposal]
When the injection of the chemical solution is completed, the operator (doctor, nurse, etc.) places one hand on the patient's skin, holds the wing 34 with the other hand, and lifts it to the upper part U.
As a result, the distal end 23 of the needle 21 is pulled out from the port (not shown), and the first and second legs (31, 32) are extended. While the first and second legs (31, 32) are extended, the distal end 23 of the needle 21 moves upward.
The first and second legs (31, 32) tend to extend toward the upper portion U along the vertical axis VL.
As shown in FIG. 6, as the second leg portion 32 rises in the vertical direction, the locking end 40.1T of the first locking portion 40.1 is changed from the first side portion S1 side as shown in FIG. It moves to the 2 side part S2 side, and gets over several protrusion 40T sequentially.

第１・第２脚部（３１・３２）は、垂直軸線ＶＬの上部Ｕ側に完全に伸びきる。
図８に示すように、第１側部Ｓ１側から第２側部Ｓ２側に移動して、複数の突部４０Ｔを、乗り越え、第２側部Ｓ２側（上部Ｕ側）で、係止される。
これにより、第１・第２脚部（３１・３２）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。
作業者（医師・看護士等）は、偶発的な針の露出による針刺事故を心配せずに針２１を処分することができる。 The first and second legs (31, 32) extend completely toward the upper portion U of the vertical axis VL.
As shown in FIG. 8, it moves from the first side S1 side to the second side S2 side, gets over the plurality of protrusions 40T, and is locked on the second side S2 side (upper U side). The
Accordingly, the first and second leg portions (31, 32) can be prevented from returning from the second state (completely extended state) to the first state.
An operator (doctor, nurse, etc.) can dispose of the needle 21 without worrying about accidental needle sticks due to accidental needle exposure.

（第二発明の使用例）
［針２１の末端２３の保護（シールド）]
〈５〉´「移行開始状態」
針部材２１（図１０〜図１５では図示せず）を、垂直軸線ＶＬに沿って上部Ｕ側に持ち上げると、第１・第２脚部（３１・３２´）がこれに連動して、垂直軸線ＶＬの上部Ｕ側に伸長を開始する。
さらにこれに連動して、第１係止部４０．１´と、第２係止部４０．２´は、上部Ｕ側に移動し、お互いに接近する。 (Usage example of the second invention)
[Protection of end 23 of needle 21 (shield)]
<5> ′ “Transition start state”
When the needle member 21 (not shown in FIGS. 10 to 15) is lifted to the upper U side along the vertical axis VL, the first and second leg portions (31, 32 ′) are interlocked with this and the vertical Extension starts on the upper U side of the axis VL.
In conjunction with this, the first locking portion 40.1 ′ and the second locking portion 40.2 ′ move to the upper U side and approach each other.

〈６〉´「移行終了状態」
第１・第２脚部（３１・３２´）は、垂直軸線ＶＬの上部Ｕ側に伸びきろうとする。
図１２〜１３に示すように、第１脚部３１と第２脚部３２´が垂直方向に立ち上がるにつれて、第２係止部４０．２´の上部Ｕ側端部は、第１係止部４０．１´の下部Ｄ側端部に接近する。 <6>'"Transition end state"
The first and second leg portions (31, 32 ′) tend to extend toward the upper portion U of the vertical axis VL.
As shown in FIGS. 12 to 13, as the first leg portion 31 and the second leg portion 32 ′ rise in the vertical direction, the upper U-side end portion of the second locking portion 40.2 ′ becomes the first locking portion. It approaches the lower D side end of 40.1 ′.

〈７〉´（第二の状態）
第１・第２脚部（３１・３２´）は、垂直軸線ＶＬの上部Ｕ側に完全に伸びきる。
図１４〜１５に示すように、第１係止部４０．１´の下部Ｄ側端部は、第２係止部４０．２´の上部Ｕ側端部と接触し、上部Ｕ側で係止する。
加えて第１脚部３１の下部Ｄ側は、第１側部Ｓ１側と第２側部Ｓ２側との両側で、
第２脚部３２´の上部Ｕの空間３２ＳＯ´に、嵌合する。
これにより、第１・第２脚部（３１・３２´）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。 <7>'(second state)
The first and second leg portions (31, 32 ') completely extend to the upper portion U side of the vertical axis VL.
As shown in FIGS. 14 to 15, the lower D side end portion of the first locking portion 40.1 ′ is in contact with the upper U side end portion of the second locking portion 40.2 ′, and is engaged on the upper U side. Stop.
In addition, the lower D side of the first leg 31 is on both sides of the first side S1 side and the second side S2 side,
It fits in the space 32SO 'in the upper part U of the second leg 32'.
Accordingly, the first and second leg portions (31, 32 ′) can be prevented from returning from the second state (completely extended state) to the first state.

（第三発明の使用例）
［針２１の末端２３の保護（シールド）]
〈５〉´´「移行開始状態」
針部材２１を、垂直軸線ＶＬに沿って上部Ｕ側に持ち上げると、第１・第２脚部（３１・３２´）がこれに連動して、垂直軸線ＶＬの上部Ｕ側に伸長を開始する。
さらにこれに連動して、第１係止部４０．１´´と、第２係止部４０．２´´は、上部Ｕ側に移動し、お互いに接近する。 (Usage example of the third invention)
[Protection of end 23 of needle 21 (shield)]
<5> ″ “Transition start state”
When the needle member 21 is lifted to the upper U side along the vertical axis VL, the first and second legs (31, 32 ') start to extend toward the upper U side of the vertical axis VL in conjunction with this. .
Further, in conjunction with this, the first locking portion 40.1 ″ and the second locking portion 40.2 ″ move to the upper U side and approach each other.

〈６〉´´「移行終了状態」
第１・第２脚部（３１・３２´）は、垂直軸線ＶＬの上部Ｕ側に伸びきろうとする。
図１８〜１９に示すように、第１脚部３１と第２脚部３２´が垂直方向に立ち上がるにつれて、第２係止部４０．２´´の上部Ｕ側の縁部４０．２Ｆは、第１係止部４０．１´´の下部Ｄ側の段部４０．１Ｄと接近する。 <6> ″ “Transition end state”
The first and second leg portions (31, 32 ′) tend to extend toward the upper portion U of the vertical axis VL.
As shown in FIGS. 18 to 19, as the first leg portion 31 and the second leg portion 32 ′ rise in the vertical direction, the edge portion 40.2F on the upper U side of the second locking portion 40.2 ″ is The first locking part 40.1 ″ approaches the step part 40.1D on the lower D side.

〈７〉´´（第二の状態）
第１・第２脚部（３１・３２´）は、垂直軸線ＶＬの上部Ｕ側に完全に伸びきる。
図２０〜２１に示すように、第２係止部４０．１´´の溝４０．２Ｍに、第１係止部４０．１の下部壁４０．１ＤＷが嵌合し、第２係止部４０．２の壁４０．３Ｗの上部Ｕ側の縁部４０．２Ｆと第１係止部４０．１´´の下部Ｄ側の段部４０．１Ｄは当接する。
加えて、第１側部Ｓ１側と第２側部Ｓ２側との両側で、第１係止部４０．１´´の下部Ｄ側と第２係止部４０．２´´上部Ｕ側は、嵌合する。
これにより、第１・第２脚部（３１・３２´）は、第二の状態（完全に伸びきった状態）から第一の状態へ戻るのを防止することができる。 <7> ″ (second state)
The first and second leg portions (31, 32 ') completely extend to the upper portion U side of the vertical axis VL.
As shown in FIGS. 20 to 21, the lower wall 40.1DW of the first locking part 40.1 is fitted into the groove 40.2M of the second locking part 40.1 ″, and the second locking part The edge 40.2F on the upper U side of the wall 40.3W of 40.2 abuts on the step 40.1D on the lower D side of the first locking part 40.1 ″.
In addition, on both sides of the first side S1 side and the second side S2 side, the lower D side of the first locking part 40.1 ″ and the upper U side of the second locking part 40.2 ″ are Mate.
Accordingly, the first and second leg portions (31, 32 ′) can be prevented from returning from the second state (completely extended state) to the first state.

１、１´、１´´ 医療用針安全装置
２針部材
３シールド部材
５固定部材
ＨＬ水平軸線
ＶＬ垂直軸線
ＨＬＬ長手方向水平軸線
ＨＬＳ側部方向水平軸線
ＰＥ基端
ＤＥ末端
Ｓ１第１側部
Ｓ２第２側部
Ｕ上部
Ｄ下部
２１針
２２針ハブ
２３末端
３１第１脚部
３１Ｓ１第１側部側第１脚部
３１Ｓ２第２側部側第１脚部
３２、３２´ 第２脚部
３２Ｓ１、３２´Ｓ１第１側部側第２脚部
３２Ｓ２、３２´Ｓ２第２側部側第２脚部
３４翼
３４Ｓ１第１側部側翼
３４Ｓ２第２側部側翼
３４Ｈヒンジ
３５、３５´ シールドハブ
３５Ｓ円筒形状空隙部
３７上部側ヒンジ
３８下部側ヒンジ
３９中間ヒンジ
４０係止部材
４０．１第１係止部
４０．１Ｔ係止端
４０．２第２係止部
４０Ｈヒンジ
４０Ｍ溝
４０Ｔ突部
４０´ （第二の）係止部材
４０．１´ 第１係止部
４０．２´ 第２係止部
４０ ´´ （第三の）係止部材
４０．１´´ 第１係止部
４０．１Ｈヒンジ
４０．１Ｄ段部
４０．１ＤＷ下部壁
４０．２´´ 第２係止部
４０．２Ｍ溝
４０．２Ｆ縁部
４０．２Ｗ側壁
４０．３Ｗ壁
５０、５０´ 固定プレート
５１針の通路
５２末端壁
５２Ｍ溝
Ｔチューブ 1, 1 ′, 1 ″ Medical needle safety device 2 Needle member
3 Shield Member 5 Fixing Member HL Horizontal Axis VL Vertical Axis HLL Longitudinal Horizontal Axis HLS Side Horizontal Axis PE Base End DE End S1 First Side S2 Second Side U Upper D Lower 21 Needle 22 Needle Hub 23 End 31 1st leg part 31S1 1st side part side 1st leg part 31S2 2nd side part side 1st leg part 32, 32 '2nd leg part 32S1, 32'S1 1st side part side 2nd leg part 32S2, 32' S2 Second side side second leg 34 Wings 34S1 First side side wings 34S2 Second side side wings 34H Hinge 35, 35 'Shield hub 35S Cylindrical cavity 37 Upper side hinge 38 Lower side hinge 39 Intermediate hinge 40 Engagement Stop member 40.1 First locking portion 40.1T Locking end 40.2 Second locking portion 40H Hinge 40M Groove 40T Protrusion 40 '(Second) locking member 40.1' First locking portion 40.2 ′ second locking part 40 ″ ( Third) locking member 40.1'' first locking portion 40.1H hinge 40.1D stepped portion 40.1DW lower wall
40.2 ″ Second locking portion 40.2M Groove 40.2F Edge 40.2W Side wall 40.3W Wall 50, 50 ′ Fixing plate 51 Needle passage
52 End wall 52M Groove T Tube

Claims

A needle member (2), a shield member (3), and a fixing member (5);
The needle member (2) has a needle (21) having a distal end (23), and the needle (21) fixes the proximal end (PE) side to the needle hub (22),
The shield member (3) has a shield hub (35) and legs (31, 32),
The fixing member (5) has a fixing plate (50),
The legs (31, 32) have a first leg (31) and a second leg (32), and the first leg (31) and the second leg (32) The first leg portion (31) and the second leg portion (32) are formed on the lower side D side of the first leg portion (31). Connected via an intermediate hinge (39) located on the upper U side of the second leg (31),
The first leg portion (31) and the second leg portion (32) formed in the pair have a locking member (40) on the second side portion S2 side and / or the first side portion S1 side ,
The locking member (40) has a first locking portion (40.1) and a second locking portion (40.2),
The legs (31, 32) can be extended from the first folded position to the second extended position,
When the legs (31, 32) are in the first folded position, the end (23) of the needle is located below the fixed plate (50),
When the leg portions (31, 32) extend to the second extended position, the needle (21) and the end (23) of the needle (21) are stored inside the leg portions (31, 32). And
When the first locking portion (40.1) and the second locking portion (40.2) are engaged, the leg portions (31, 32) maintain the second extended position. Medical needle safety device (1)
It said first locking portion (40.1) forms a locking end (40.1T) on the side that engages with the second locking portion (40.2),
The second locking part (40.2) is formed with a plurality of protrusions (40T) on the side engaged with the locking end (40.1T), and a groove ( 40M),
When viewed with the legs (31, 32) fully extended,
Said first locking portion (40.1), the first leg portion is formed on the lower D side (31S2), the first locking portion (40.1), from the distal DE direction to the proximal end PE direction look, formed into a substantially triangular plate shape, the first locking portion (40.1) has a locking end (40.1T) formed tapered in the lower direction D,
The second locking portion (40.2) projects from the upper U side of the second leg portion (32) and in the first side portion S1 direction (second side portion direction) from the terminal DE direction. When viewed in the proximal PE direction, it is formed in a substantially L shape,
One end of the first side S1 side (second side S side) is connected to the upper U side of the second leg (32) by a hinge (40H),
The first side portion S1 side (second side portion S side) is formed in a substantially semicircular shape, a plurality of protrusions (40T) are intermittently formed on the outer periphery, and between each protrusion (40T) Forms grooves (40M) at predetermined intervals,
In the state where the leg portions (31, 32) are completely folded, the locking end (40.1T) of the first locking portion (40.1) is the first side portion of the protruding portion (40T). Locked on the S1 side (second side S2 side),
With the leg portions (31, 32) extending substantially vertically, the locking end (40.1T) of the first locking portion (40.1) has a groove with the plurality of protrusions (40T). (40M) is moved from the first side portion S1 side (second side portion S2 side) to the second side portion S2 side (first side portion S1 side), and then moved to the second side portion S2 side (first side portion). (S1 side) formed so that it can be locked at the end,
A medical needle safety device (1).

A needle member (2), a shield member (3), and a fixing member (5 ');
The needle member (2) has a needle (21) having a distal end (23), and the needle (21) fixes the proximal end (PE) side to the needle hub (22),
The shield member (3) has a shield hub (35 ′) and legs (31, 32 ′),
The fixing member (5) has a fixing plate (50 '),
The leg portions (31, 32 ') have a first leg portion (31) and a second leg portion (32'), and the first leg portion (31) and the second leg portion (32) are The first leg portion (31) and the second leg portion (32) are formed as a pair on the first side portion S1 side and the second side portion S2 side, and the lower portion D of the first leg portion (31). Connected via an intermediate hinge (39) located on the upper U side of the second leg (31),
The first leg (31) and the second leg (32 ') formed in the pair have a locking member (40') on the second side S2 side and / or the first side S1 side,
The locking member (40 ′) has a first locking portion (40.1 ′) and a second locking portion (40.2 ′),
The legs (31, 32 ') can be extended from the first folding position to the second extension position,
When the legs (31, 32 ') are in the first folded position, the distal end (23) of the needle is located below the fixed plate (50'),
When the leg (31, 32 ') is extended to the second extension position, the needle (21) and the end (23) of the needle (21) are located inside the leg (31, 32'). Stored in
When the first locking portion (40.1 ′) and the second locking portion (40.2 ′) are engaged, the leg portions (31, 32 ′) maintain the second extended position. A medical needle safety device (1 ') that can
The first locking portion (40.1 ′) protrudes on the side that engages with the second locking portion (40.2 ′),
The second locking part (40.2 ′) protrudes from the side that engages with the first locking part (40.1 ′),
When the legs (31, 32) are viewed in a fully expanded state from a completely folded state,
The second leg (32 ') is formed by extending a distal side wall (40.2WDE) and a proximal side wall (40.2WPE) on the upper U side ,
A space (32SO ') is formed between the distal side wall (40.2WDE) and the proximal side wall (40.2WPE),
The first locking part (40.1 ′) protrudes from the proximal end PE direction of the first leg part (31) in the terminal DE direction, and the first locking part (40.1 ′) It is formed in a substantially rectangular shape when viewed from the DE direction to the proximal PE direction,
The second locking portion (40.2 ′) protrudes in the first side S1 direction (second side direction) of the side wall (40.2WDE) on the end side ,
The second locking portion (40.2 ') is formed in a substantially plate shape and a substantially fan shape when viewed from the terminal DE direction to the base end PE direction ,
In a state where the leg portions (31, 32 ') are extended substantially vertically, the lower D side end portion of the first locking portion (40.1') is the second locking portion (40.2 '). ) In contact with the upper U side end, and can be locked on the upper U side,
The medical needle safety characterized in that the lower D side of the first leg (31) is formed so as to fit into the space (32SO ') of the upper U of the second leg (32'). Device (1 ').

A needle member (2), a shield member (3), and a fixing member (5 ');
The needle member (2) has a needle (21) having a distal end (23), and the needle (21) fixes the proximal end (PE) side to the needle hub (22),
The shield member (3) has a shield hub (35 ′) and legs (31, 32 ′),
The fixing member (5) has a fixing plate (50 '),
The said leg part (31 * 32 ' ) has a 1st leg part (31) and a 2nd leg part (32 ' ) , The said 1st leg part (31) and a 2nd leg part (32 ' ), Are formed in pairs on the first side portion S1 side and the second side portion S2 side, and the first leg portion (31) and the second leg portion (32 ') are the same as those of the first leg portion (31). Connected via an intermediate hinge (39) located on the lower D side and located on the upper U side of the second leg (31),
The first leg portion (31) and the second leg portion (32 ′) formed in the pair have locking members (40 ″) on the second side portion S2 side and the first side portion S1 side,
The locking member (40 ″) has a first locking portion (40.1 ″) and a second locking portion (40.2 ″),
The legs (31, 32 ') can be extended from the first folding position to the second extension position,
When the legs (31, 32 ') are in the first folded position, the distal end (23) of the needle is located below the fixed plate (50'),
When the leg (31, 32 ') is extended to the second extension position, the needle (21) and the end (23) of the needle (21) are located inside the leg (31, 32'). Stored in
When the first locking portion (40.1 ″) and the second locking portion (40.2 ″) are engaged, the leg portions (31, 32 ′) are moved to the second extended position. Is a medical needle safety device (1 ″) that can maintain
The locking member (40 ″) has a first locking portion (40.1 ″) and a second locking portion (40.2 ″),
The first locking part (40.1 ″) is formed at a position to be engaged with the second locking part (40.2 ″),
The second locking part (40.2 ″) is formed at a position to engage with the first locking part (40.1 ″),
When the leg (31, 32 ') is viewed in a fully expanded state from a fully folded state,
The second leg (32 ') is formed by extending a distal side wall (40.2WDE) and a proximal side wall (40.2WPE) on the upper U side,
To form a wall (40.3W) of the second side portion for coupling the side walls of the terminal and (40.2WDE) and a side wall of the base end side (40.2WPE) (first side side S1),
The distal side wall (40.2WDE), the proximal side wall (40.2WPE), and the second side wall ( first side S1 side) wall (40.3W) provide a groove (40. 2M),
The first locking part (40.1 ″) has a step part (40.1D) and a lower wall (40.1DW),
The step (40.1D) is formed on the first leg (31) lower D side,
The lower wall (40.1DW) is formed from the lower D side to the lower D end than the step (40.1D),
The thickness of the lower wall (40.1DW) is thinner than the first leg (31) body,
The lower D end of the lower wall (40.1DW) is connected to the vicinity of the lower D of the groove (40.2M) by a hinge (40.1H),
The second locking portion (40.2 ″) includes the distal side wall (40.2WDE), the proximal side wall (40.2WPE), and the second side portion (first side portion S1). consists wall (40.3W) and the groove side) (40.2M),
With the legs (31, 32 ') extending substantially vertically, the edge (40.W) of the side wall (40.3W) on the first side S1 side of the upper part U of the second leg (32'). 2F) abuts on the stepped portion (40.1D) of the first locking portion (40.1 ″),
The lower wall (40.1DW) of the first locking part (40.1 ″) is formed so as to be able to fit into the groove (40.2M) of the second locking part (40.2 ″). did,
A medical needle safety device (1 '') characterized in that.

The first locking portion (40.1, 40.1′40.1 ″) is formed on the lower portion D side of the first leg portion (31), and the second locking portion (40.2, 40.2). ′, 40.2 ″) is formed on the upper D side of the second leg (32), or
The first locking portion (40.1, 40.1′40.1 ″) is formed on the upper part D side of the second leg portion (32), and the second locking portion (40.2, 40.2) is formed. The medical needle safety device according to any one of claims 1 to 3 , wherein '40 .2 '') is formed on the lower portion D side of the first leg portion (31). (1, 1 ', 1 ").

The fixing part (5, 5 ′) has a fixing plate (50, 50 ′), and the fixing plate (50, 50 ′) is located at the end wall (52) on the terminal DE side of the substantially central part (50C). The medical needle safety device (1, 1) according to any one of claims 1 to 4 , characterized in that a fitting groove (52M) is formed in the end wall (52). ', 1').