JP3123361U - Needle cap and medical needle - Google Patents

Needle cap and medical needle Download PDF

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JP3123361U
JP3123361U JP2006003278U JP2006003278U JP3123361U JP 3123361 U JP3123361 U JP 3123361U JP 2006003278 U JP2006003278 U JP 2006003278U JP 2006003278 U JP2006003278 U JP 2006003278U JP 3123361 U JP3123361 U JP 3123361U
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needle
joint
male member
female member
cap
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光寿 佐藤
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SB Kawasumi Laboratories Inc
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Abstract

【課題】ねじ切る際に力を入れやすく、容易にねじ切ることができる針キャップを提供すること。
【解決手段】一方が閉鎖した略円筒状で剛性の大きい雄部材（６）と略円筒状で前記雄部材（６）より剛性の小さい雌部材（８）からなり、前記雄部材（６）は、前方から略中腹部にかけて大径の露出部（６Ａ）と略中腹部から後方の開口側にかけて小径の接合部（６Ｂ）からなり、前記雌部材（８）は、略中腹部に翼（９）を突設し、当該翼（９）の後方に切欠部（１０）を形成し、当該切欠部（１０）の後方に針基係合部（１２）を形成した針キャップ（５）。
【選択図】図１To provide a needle cap that can be easily threaded and easily threaded.
A male member (6) having a substantially cylindrical shape and one of which is closed and a female member (8) having a substantially cylindrical shape and a rigidity lower than that of the male member (6). The large-diameter exposed portion (6A) from the front to the substantially middle abdomen and the small-diameter joint (6B) from the substantially middle abdomen to the rear opening side, and the female member (8) has a wing (9 ), A notch part (10) is formed behind the wing (9), and a needle base engaging part (12) is formed behind the notch part (10).
[Selection] Figure 1

Description

本考案は、血液バッグ等の医療用バッグに装着される医療用針（針キャップと針基具備する）、プレフィルドシリンジ（薬剤装填済注射器で、キャップと注射針接続部を具備する）等の針キャップの改良に関するものであり、一度開封すると、開封前と同等の状態には二度と戻らないタンパープルーフ性を有する医療用針の改良である。   The present invention relates to a needle such as a medical needle (having a needle cap and a needle base) to be attached to a medical bag such as a blood bag, a prefilled syringe (a syringe loaded with a drug and having a cap and a needle connection portion). The present invention relates to an improvement of a cap, which is an improvement of a medical needle having a tamper-proof property that once opened, does not return to the same state as before opening.

例えば特許文献１には、プロテクタ（本考案の針キャップ５に相当）を二層構造にして、薄肉脆弱部（本考案の切欠部１０に相当）が、ねじ切り容易な材質層で成形されている医療用針が開示されている。要するに、ハブとの固着部を有する第１層と、その内層に第１層より剛性の大きい材質製の第２層とを有し、剛性の小さい第１層に切り離し用の薄肉脆弱部を形成している。薄肉脆弱部は、プロテクタの外層の突出部分の外周（ハブと突出部分との接着部分以外の部分）に形成される。   For example, in Patent Document 1, a protector (corresponding to the needle cap 5 of the present invention) has a two-layer structure, and a thin fragile portion (corresponding to the notch 10 of the present invention) is formed of a material layer that can be easily threaded. A medical needle is disclosed. In short, the first layer having a fixing portion with the hub and the second layer made of a material having a rigidity higher than that of the first layer are formed in the inner layer, and a thin fragile portion for separation is formed in the first layer having a lower rigidity. is doing. A thin weak part is formed in the outer periphery (parts other than the adhesion part of a hub and a protrusion part) of the protrusion part of the outer layer of a protector.

同様に特許文献２にも、プロテクタ（本考案の針キャップ５に相当）を二層構造にして、薄肉脆弱部（本考案の切欠部１０に相当）が、ねじ切り容易な材質層で成形されている医療用針が開示されている。薄肉脆弱部は、ハブの外周（ハブと突出部分との接合部以外の部分）に形成している。   Similarly, in Patent Document 2, a protector (corresponding to the needle cap 5 of the present invention) has a two-layer structure, and a thin-walled fragile portion (corresponding to the notch 10 of the present invention) is formed with a material layer that can be easily threaded. A medical needle is disclosed. The thin fragile portion is formed on the outer periphery of the hub (a portion other than the joint between the hub and the protruding portion).

特許文献３には、プロテクタ（本考案の針キャップ５に相当）が、剛性の小さい内プロテクタと剛性の大きい外プロテクタの２つの層からなり、開封部（本考案の切欠部１０に相当）が、ねじ切り容易な材質層で成形されている医療用針が開示されている。（文献３の［００４５］から［００４７］に記載）   In Patent Document 3, a protector (corresponding to the needle cap 5 of the present invention) is composed of two layers of an inner protector having a low rigidity and an outer protector having a large rigidity, and an opening part (corresponding to the notch 10 of the present invention). A medical needle formed of a material layer that is easy to thread is disclosed. (Described in [0045] to [0047] of Document 3)

しかし、特許文献１と特許文献２では、薄肉脆弱部（本考案の切欠部１０に相当）をねじ切って針管を露出する際に、プロテクタ及びハブが全体的に平坦であるため、薄肉脆弱部に対して力を入れにくく、特許文献３では、開封部（本考案の切欠部１０に相当）をねじ切って針管を露出する際に、剛性の大きい外プロテクタと、剛性の小さい内プロテクタまたはハブを手で把持してねじ切るため、外プロテクタを把持した側は開封部のある内プロテクタに対して、力が伝わりにくい。仮に内プロテクタと、内プロテクタまたはハブを把持してねじ切ろうとすると外プロテクタが邪魔になる上、ハブと内プロテクタが全体的に平坦であるため力を入れにくい。   However, in Patent Document 1 and Patent Document 2, when the thin-walled fragile portion (corresponding to the notch portion 10 of the present invention) is threaded to expose the needle tube, the protector and the hub are generally flat. In Patent Document 3, when the unsealed portion (corresponding to the notch portion 10 of the present invention) is threaded to expose the needle tube, the outer protector having high rigidity and the inner protector or hub having low rigidity are disclosed. Since the hand is gripped and screwed, the side on which the outer protector is gripped is less likely to transmit force to the inner protector having the opening. If the inner protector and the inner protector or the hub are gripped and screwed, the outer protector becomes an obstacle, and the hub and the inner protector are flat as a whole, making it difficult to apply force.

特公Ｈ２−５４３０号公報（図１、図２、図４参照）Japanese Patent Publication No. H2-5430 (see FIGS. 1, 2, and 4) 特公Ｈ１−１７３８１号公報（図１、図２、図４参照）Japanese Patent Publication H1-173381 (see FIGS. 1, 2, and 4) 特開２００３−１１６９９２号公報（図１、図５、図６、図７参照）Japanese Patent Laid-Open No. 2003-116992 (see FIGS. 1, 5, 6, and 7)

本考案者が解決しようとする問題点は、特許文献１と特許文献２では、薄肉脆弱部をねじ切って針管を露出する際に、プロテクタ及びハブが全体的に平坦であるため、薄肉脆弱部に対して力を入れにくい点である。特許文献３では、開封部をねじ切って針管を露出する際に、剛性の大きい外プロテクタと、剛性の小さい内プロテクタまたはハブを手で把持してねじ切るため、外プロテクタを把持した側は開封部のある内プロテクタに対して、力が伝わりにくい点である。   The problem to be solved by the present inventors is that in Patent Document 1 and Patent Document 2, when the thin fragile portion is threaded to expose the needle tube, the protector and the hub are generally flat. It is a point that it is difficult to put power on. In Patent Document 3, when the opening portion is threaded to expose the needle tube, the outer protector having high rigidity and the inner protector or hub having low rigidity are gripped and screwed by hand, so that the side holding the outer protector is unsealed. It is a point that force is hard to be transmitted to an inner protector with a part.

そこで本考案者は、以上の課題を解決するために鋭意検討を重ねた結果、以下の考案に到達した。
［１］本考案は、一方が閉鎖した略円筒状で剛性の大きい雄部材（６）と略円筒状で前記雄部材（６）より剛性の小さい雌部材（８）からなり、
前記雄部材（６）は、前方から略中腹部にかけて大径の露出部（６Ａ）と略中腹部から後方の開口側にかけて小径の接合部（６Ｂ）からなり、
前記雌部材（８）は、略中腹部に翼（９）を突設し、当該翼（９）の後方に切欠部（１０）を形成し、当該切欠部（１０）の後方に針基係合部（１２）を形成した針キャップ（５）を提供する。
［２］本考案は、雌部材（８）は、内周壁の前方から略中腹部にかけて接合部（７Ｂ）を形成し、当該接合部（７Ｂ）と前記雄部材（６）の接合部（６Ｂ）を装着した［１］記載の針キャップ（５）を提供する。
［３］本考案は、雄部材（６）の接合部（６Ｂ）の後方に突部（７）を突設し、前記雌部材（８）の接合部（７Ｂ）の後方に前記突部（７）を装着する溝部（１１）を形成した［１］または［２］記載の針キャップ（５）を提供する。
［４］本考案は、［１］から［３］のいずれか１に記載の針キャップ（５）と針管（２）を埋設した針基（３）を具備し、
前記針基（３）は、針管（２）の尖端からみて、順に小径部（３Ａ）、中径部（３Ｂ）、大径部（３Ｃ）を形成し、
前記雌部材（８）の針基係合部（１２）を前記針基（３）の中径部（３Ｂ）に装着した医療用針（１）を提供する。
本考案で「装着」とは、係合、嵌合、圧入、挿入、挿着などの意味を含む。 Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following idea.
[1] The present invention consists of a substantially cylindrical and rigid male member (6), one of which is closed, and a substantially cylindrical and female member (8) that is less rigid than the male member (6).
The male member (6) consists of a large-diameter exposed portion (6A) from the front to the substantially middle abdomen and a small-diameter joint (6B) from the substantially middle abdomen to the rear opening side,
The female member (8) has a wing (9) projecting substantially in the middle of the abdomen, forming a notch (10) behind the wing (9), and a needle base on the back of the notch (10). A needle cap (5) is provided having a joint (12).
[2] In the present invention, the female member (8) forms a joint (7B) from the front of the inner peripheral wall to the substantially middle abdomen, and the joint (6B) between the joint (7B) and the male member (6). The needle cap (5) according to [1] is provided.
[3] In the present invention, a protrusion (7) is provided behind the joint (6B) of the male member (6), and the protrusion (7B) is provided behind the joint (7B) of the female member (8). 7) A needle cap (5) according to [1] or [2] in which a groove (11) for mounting 7) is formed.
[4] The present invention comprises the needle cap (5) according to any one of [1] to [3] and a needle base (3) in which the needle tube (2) is embedded,
The needle base (3) is formed with a small diameter portion (3A), a medium diameter portion (3B), and a large diameter portion (3C) in this order, as viewed from the tip of the needle tube (2).
A medical needle (1) is provided in which the needle base engaging portion (12) of the female member (8) is attached to the medium diameter portion (3B) of the needle base (3).
In the present invention, “mounting” includes meanings such as engagement, fitting, press-fitting, insertion, and insertion.

本考案の針キャップ５は、一方が閉鎖した略円筒状で剛性の大きい雄部材６と略円筒状で前記雄部材６より剛性の小さい雌部材８からなり、前記雄部材６は、前方から略中腹部にかけて大径の露出部６Ａと略中腹部から後方の開口側にかけて小径の接合部６Ｂからなり、前記雌部材８は、略中腹部に翼９を突設し、前記翼９の後方に切欠部１０を形成し、当該切欠部１０の後方に針基係合部１２を形成しているため、
（１）翼９を把持して、雄部材６より剛性の小さい雌部材８の切欠部１０を回転させて針キャップ５の切欠部１０をねじ切ることで、ねじ切る際に力を入れやすく容易にねじ切ることができる。
（２）剛性が大きい雄部材６の露出部６Ａが前方に露出し、同接合部６Ｂが、雌部材８の切欠部１０付近の内周壁まで伸びているため、ねじ切る際に切欠部１０に対して力が伝わりやすい。 The needle cap 5 of the present invention comprises a substantially cylindrical and rigid male member 6 closed on one side and a substantially cylindrical and female member 8 which is less rigid than the male member 6. The male member 6 is substantially from the front. It consists of a large-diameter exposed portion 6A over the middle abdomen and a small-diameter joint portion 6B from the substantially middle abdomen to the rear opening side. The female member 8 has a wing 9 protruding from the substantially abdomen, and behind the wing 9 Since the notch 10 is formed and the needle base engaging part 12 is formed behind the notch 10,
(1) By gripping the wing 9 and rotating the notch 10 of the needle cap 5 by rotating the notch 10 of the female member 8 that is less rigid than the male member 6, it is easy to apply force when threading. Can be threaded.
(2) The exposed portion 6A of the male member 6 having high rigidity is exposed forward, and the joint portion 6B extends to the inner peripheral wall in the vicinity of the notched portion 10 of the female member 8, so that the notched portion 10 is On the other hand, power is easily transmitted.

図１は本考案の採血針の使用前の状態を示す縦断面図、図２は本考案の採血針の使用前の状態を示す側面図、図３は本考案の針キャップ５の雄部材６と雌部材８を（ａ）係合する前の縦断面図、（ｂ）係合した状態の縦断面図、図４は本考案の採血針の使用後の状態を示す縦断面図である。
本考案の採血針は、針管２を埋設した針基３と針キャップ５からなる。 FIG. 1 is a longitudinal sectional view showing a state before use of the blood collection needle of the present invention, FIG. 2 is a side view showing a state before use of the blood collection needle of the present invention, and FIG. 3 is a male member 6 of a needle cap 5 of the present invention. And FIG. 4 is a longitudinal sectional view showing the state after use of the blood collection needle of the present invention.
The blood collection needle of the present invention comprises a needle base 3 in which a needle tube 2 is embedded and a needle cap 5.

［針キャップ５］
針キャップ５は、一方が閉鎖した略円筒状で剛性の大きい雄部材６と略円筒状で前記雄部材６より剛性の小さい雌部材８からなる。雄部材６の材質は、針管２保護に必要な強度と滅菌での耐熱性を保護するために、ポリプロピレンなどの硬質ないし半硬質の熱可塑性樹脂材料が好ましい。雌部材８の材質は、操作性の向上と開封性を確保するため、雄部材６よりも剛性の小さい材料からなり、軟質の塩化ビニル等の熱可塑性樹脂材料が好ましい。
雄部材６は、図１（ａ）に例示するように、前方から略中腹部にかけて大径の露出部６Ａと略中腹部から後方の開口側にかけて小径の接合部６Ｂからなる。また、接合部６Ｂの開口側端部の外周壁に突部７を突設している。突部７は、図１（ａ）に例示するように雄部材６の外周壁に環状に突設している。突部７は、大径の露出部６Ａの径よりも小さく、小径の接合部６Ｂの径よりも大きく形成し、雌部材８の溝部１１に係合する形状であればどのような形状でもよい。
雌部材８は、略中腹部に翼９を突設し、翼９の後方に切欠部１０を形成し、当該切欠部１０の後方に針基係合部（溝）１２を形成している。切欠部１０は、雌部材８の他の径よりも小さく、脆弱になっている。このため、ねじ切りが容易操作を容易に行なうことができる。内周壁には、前方から略中腹部に前記雄部材６の接合部６Ｂと係合する接合部７Ｂを形成している。接合部７Ｂは、雄部材６の保持を確保するため、雄部材６を雌部材８の切欠部１０付近の内周壁まで係合できるように形成することが好ましい。
雌部材８の内周壁には、雄部材６の突部７を圧入する溝部１１を形成する。雄部材６の突部７を雌部材８の溝部１１に圧入することで、雄部材６の接合部６Ｂと雌部材８の接合部７Ｂの装着をより強固することができる。溝部１１は、雄部材６の突部７と係合する形状であればどのような形状でもよい。針基係合部（溝）１２は、針基３の中径部３Ｂと係合する形状であればどのような形状でもよい。
また、図１（ｂ）に例示するように、雄部材６の接合部６Ｂと雌部材８の接合部７Ｂを係合する際に、雄部材６と雌部材８の接触面の各々の外周壁または内周壁は、段差が生じないようストレートまたはテーパ状になるように形成するのがよい。雄部材６と雌部材８を接合して組み立てる際に、雄部材６の接合部６Ｂの外周壁に接着剤等（ＤＯＰ等の可塑剤）を塗布し、雌部材８の内周壁と（加熱）溶着させることによって気密性をもたせている。さらに、接合部６Ｂの密着性は、機械的嵌合及び（加熱による）ブロッキングでも保護される。同様に、針基係合部（溝）１２は、針基３の中径部３Ｂと係合する形状であればどのような形状でもよい。同様に、雌部材８の針基係合部（溝）１２と針基３を係合して組立てる際に、雌部材８の針基係合部（溝）１２または針基３の小径部３Ａと中径部３Ｂに接着剤等（ＤＯＰ等の可塑剤）を塗布し、雌部材８の内周壁と針基係合部（溝）の針基３の小径部３Ａと中径部３Ｂを（加熱）溶着させることによって気密性をもたせている。 [Needle cap 5]
The needle cap 5 is composed of a substantially cylindrical and rigid male member 6 which is closed on one side and a substantially cylindrical and female member 8 which is substantially cylindrical and less rigid than the male member 6. The material of the male member 6 is preferably a hard or semi-rigid thermoplastic resin material such as polypropylene in order to protect the strength necessary for protecting the needle tube 2 and the heat resistance during sterilization. The material of the female member 8 is made of a material that is less rigid than the male member 6 in order to ensure improved operability and unsealing properties, and is preferably a thermoplastic resin material such as soft vinyl chloride.
As illustrated in FIG. 1A, the male member 6 includes a large-diameter exposed portion 6A from the front to the substantially middle abdomen and a small-diameter joint 6B from the substantially middle to the rear opening side. Further, the protrusion 7 is provided on the outer peripheral wall of the opening side end of the joint 6B. The protrusion 7 protrudes in an annular shape on the outer peripheral wall of the male member 6 as illustrated in FIG. The protrusion 7 may have any shape as long as it has a shape that is smaller than the diameter of the large-diameter exposed portion 6A and larger than the diameter of the small-diameter joining portion 6B and engages with the groove 11 of the female member 8. .
The female member 8 has a wing 9 protruding substantially in the middle of the abdomen, a notch 10 is formed behind the wing 9, and a needle base engaging portion (groove) 12 is formed behind the notch 10. The notch 10 is smaller than the other diameter of the female member 8 and is fragile. For this reason, threading can be easily performed. A joint portion 7B that engages with the joint portion 6B of the male member 6 is formed on the inner peripheral wall substantially from the front to the middle. The joining portion 7B is preferably formed so that the male member 6 can be engaged with the inner peripheral wall in the vicinity of the notch portion 10 of the female member 8 in order to ensure the holding of the male member 6.
On the inner peripheral wall of the female member 8, a groove 11 for press-fitting the protrusion 7 of the male member 6 is formed. By press-fitting the protrusion 7 of the male member 6 into the groove 11 of the female member 8, the attachment of the joint 6 </ b> B of the male member 6 and the joint 7 </ b> B of the female member 8 can be further strengthened. The groove 11 may have any shape as long as the groove 11 is engaged with the protrusion 7 of the male member 6. The needle base engaging portion (groove) 12 may have any shape as long as the needle base engaging portion (groove) 12 is engaged with the medium diameter portion 3 </ b> B of the needle base 3.
Further, as illustrated in FIG. 1B, the outer peripheral walls of the contact surfaces of the male member 6 and the female member 8 when the joint portion 6B of the male member 6 and the joint portion 7B of the female member 8 are engaged. Alternatively, the inner peripheral wall is preferably formed to be straight or tapered so that no step is generated. When the male member 6 and the female member 8 are joined and assembled, an adhesive or the like (plasticizer such as DOP) is applied to the outer peripheral wall of the joint 6B of the male member 6, and the inner peripheral wall of the female member 8 (heating) Airtightness is provided by welding. Furthermore, the adhesion of the joint 6B is protected by mechanical fitting and blocking (by heating). Similarly, the needle base engaging portion (groove) 12 may have any shape as long as the needle base engaging portion (groove) 12 is engaged with the medium diameter portion 3B of the needle base 3. Similarly, when the needle base engaging portion (groove) 12 of the female member 8 and the needle base 3 are engaged and assembled, the needle base engaging portion (groove) 12 of the female member 8 or the small diameter portion 3A of the needle base 3 is assembled. Then, an adhesive or the like (plasticizer such as DOP) is applied to the medium diameter part 3B, and the inner peripheral wall of the female member 8 and the small diameter part 3A and the medium diameter part 3B of the needle base 3 of the needle base engagement part (groove) are ( Airtightness is provided by welding.

［翼９］
翼９は、針キャップ５を切欠部１０で切断部５Ａと残存部５Ｂにねじ切る際に手で保持するものであり、図１や図２の例示では雌部材８の中腹部に突設しているが、ねじ切る際に手で保持できる形状であればどのような形状でもよい。また、図１や図２の例示では、雌部材８の上下に二箇所形成されているが、雌部材８の外周壁に複数個所形成してもよい。 [Wing 9]
The wing 9 is held by hand when the needle cap 5 is screwed into the cut portion 5A and the remaining portion 5B by the notch portion 10, and protrudes from the middle portion of the female member 8 in the examples of FIGS. However, any shape may be used as long as it can be held by hand when threading. 1 and 2, two positions are formed above and below the female member 8, but a plurality of positions may be formed on the outer peripheral wall of the female member 8.

［操作方法の一例］
採血などで医療用針１の使用時には、針キャップ５の翼９を把持して、回転させて切欠部１０をねじ切る。このとき回転時に翼に力を入れることができるので、医療用針１のねじ切り操作が容易になり、図４に例示するように針管２を露出させることができる。また、剛性が大きい雄部材６の露出部６Ａが前方に露出し、同接合部６Ｂが、切欠部１０付近の雌部材８の内周壁まで伸びているため、ねじ切る際に切欠部１０に対して力が伝わりやすい。 [Example of operation method]
When the medical needle 1 is used for blood collection or the like, the wing 9 of the needle cap 5 is gripped and rotated to cut the notch 10. At this time, since force can be applied to the wing during rotation, the threading operation of the medical needle 1 is facilitated, and the needle tube 2 can be exposed as illustrated in FIG. Further, the exposed portion 6A of the male member 6 having high rigidity is exposed forward, and the joint portion 6B extends to the inner peripheral wall of the female member 8 in the vicinity of the notched portion 10, so The power is easy to be transmitted.

本考案の針キャップ５の雄部材６と雌部材８を（ａ）装着する前の縦断面図、（ｂ）装着した状態の縦断面図The male member 6 and the female member 8 of the needle cap 5 of the present invention are (a) a longitudinal sectional view before mounting, and (b) a vertical sectional view in a mounted state. 本考案の医療用針１の使用前の状態を示す縦断面図The longitudinal cross-sectional view which shows the state before use of the medical needle 1 of this invention 本考案の医療用針１の使用前の状態を示す側面図The side view which shows the state before use of the medical needle 1 of this invention 本考案の採血針の使用後の状態を示す縦断面図Longitudinal sectional view showing the state of the blood collection needle of the present invention after use

符号の説明Explanation of symbols

１ 医療用針
２ 針管
３ 針基
３Ａ 小径部
３Ｂ 中径部
３Ｃ 大径部
４ チューブＴ接続口
５ 針キャップ
５Ａ 切断部
５Ｂ 残存部
６ 雄部材
６Ａ 露出部
６Ｂ 接合部
７ 突部
７Ｂ 接合部
８ 雌部材
９ 翼
１０ 切欠部
１１ 溝部
１２ 針基係合部（溝）
Ｔ チューブ DESCRIPTION OF SYMBOLS 1 Medical needle 2 Needle tube 3 Needle base 3A Small diameter part 3B Medium diameter part 3C Large diameter part 4 Tube T connection port 5 Needle cap 5A Cutting | disconnection part 5B Remaining part 6 Male member 6A Exposed part 6B Joint part 7 Protrusion part 7B Joint part 8 Female member 9 Wing 10 Notch portion 11 Groove portion 12 Needle base engaging portion (groove)
T tube

Claims (4)

一方が閉鎖した略円筒状で剛性の大きい雄部材（６）と略円筒状で前記雄部材（６）より剛性の小さい雌部材（８）からなり、
前記雄部材（６）は、前方から略中腹部にかけて大径の露出部（６Ａ）と略中腹部から後方の開口側にかけて小径の接合部（６Ｂ）からなり、
前記雌部材（８）は、略中腹部に翼（９）を突設し、当該翼（９）の後方に切欠部（１０）を形成し、当該切欠部（１０）の後方に針基係合部（１２）を形成したことを特徴とする針キャップ（５）。 A substantially cylindrical and rigid male member (6) with one side closed and a substantially cylindrical and female member (8) having a smaller rigidity than the male member (6),
The male member (6) consists of a large-diameter exposed portion (6A) from the front to the substantially middle abdomen and a small-diameter joint (6B) from the substantially middle abdomen to the rear opening side,
The female member (8) has a wing (9) projecting substantially in the middle of the abdomen, forming a notch (10) behind the wing (9), and a needle base on the back of the notch (10). A needle cap (5) characterized in that a joint (12) is formed. 雌部材（８）は、内周壁の前方から略中腹部にかけて接合部（７Ｂ）を形成し、当該接合部（７Ｂ）と前記雄部材（６）の接合部（６Ｂ）を装着したことを特徴とする請求項１記載の針キャップ（５）。   The female member (8) forms a joint portion (7B) from the front of the inner peripheral wall to the substantially middle abdomen, and is fitted with the joint portion (7B) and the joint portion (6B) of the male member (6). The needle cap (5) according to claim 1. 雄部材（６）の接合部（６Ｂ）の後方に突部（７）を突設し、前記雌部材（８）の接合部（７Ｂ）の後方に前記突部（７）を装着する溝部（１１）を形成したことを特徴とする請求項１または請求項２記載の針キャップ（５）。   A protrusion (7) is provided behind the joint (6B) of the male member (6), and a groove (7) is mounted behind the joint (7B) of the female member (8). The needle cap (5) according to claim 1 or 2, characterized in that 11) is formed. 請求項１から請求項３のいずれか１項に記載の針キャップ（５）と針管（２）を埋設した針基（３）を具備し、
前記針基（３）は、針管（２）の尖端からみて、順に小径部（３Ａ）、中径部（３Ｂ）、大径部（３Ｃ）を形成し、
前記雌部材（８）の針基係合部（１２）を前記針基（３）の中径部（３Ｂ）に装着したことを特徴とする医療用針（１）。 Comprising a needle base (3) in which the needle cap (5) according to any one of claims 1 to 3 and a needle tube (2) are embedded;
The needle base (3) is formed with a small diameter portion (3A), a medium diameter portion (3B), and a large diameter portion (3C) in this order, as viewed from the tip of the needle tube (2).
The medical needle (1), wherein the needle base engaging portion (12) of the female member (8) is attached to the middle diameter portion (3B) of the needle base (3).
JP2006003278U 2006-04-28 2006-04-28 Needle cap and medical needle Expired - Lifetime JP3123361U (en)

Priority Applications (1)

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Publications (1)

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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140006950A (en) * 2011-03-18 2014-01-16 테루모 가부시키가이샤 Integrated puncture needle adapter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140006950A (en) * 2011-03-18 2014-01-16 테루모 가부시키가이샤 Integrated puncture needle adapter
JP5977734B2 (en) * 2011-03-18 2016-08-24 テルモ株式会社 Puncture needle integrated adapter and method of using the puncture needle integrated adapter

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