JP4656901B2

JP4656901B2 - Wing needle with clamp and extracorporeal circuit

Info

Publication number: JP4656901B2
Application number: JP2004285584A
Authority: JP
Inventors: 一徳宮崎; 又一郎又見; 誠一小野
Original assignee: Kawasumi Laboratories Inc
Current assignee: SB Kawasumi Laboratories Inc
Priority date: 2004-09-30
Filing date: 2004-09-30
Publication date: 2011-03-23
Anticipated expiration: 2024-09-30
Also published as: JP2006095121A

Description

本発明は、誤刺防止用針カバーと緊急離脱用チューブクランプの双方の役割を兼ねたクランプ及び当該クランプを装着した体外循環回路の改良に関する。 The present invention relates to a clamp that serves both as a needle cover for preventing stinging and a tube clamp for emergency detachment, and to an improvement in an extracorporeal circuit equipped with the clamp.

例えば特許文献１から２には、カバーの両側壁に翼付針の翼を挿入するための斜めに傾斜した溝を形成し、当該溝に翼を挿入すると同時に、針の鋭利な先端をカバー内に収納する誤刺防止用針カバーの発明が開示されている。
また特許文献３に、出願人は、封止部と底部の対向する壁面に、それぞれ二つのチューブ挟持部を形成したクランプの発明を開示した。
特許文献１から２の誤刺防止用針カバーは、翼付針を針の鋭利な先端をカバー内に収納する際に、二段階の操作を両手で行う必要があるため、操作が煩わしいとの指摘があった。
また特許文献３に記載のクランプは、チューブを確実にクランプできるように配慮されているが、誤刺防止用針カバーとしての機能はない。 For example, in Patent Documents 1 and 2, an obliquely inclined groove for inserting a winged needle wing is formed on both side walls of the cover, and at the same time as inserting the wing into the groove, the sharp tip of the needle is placed in the cover. An invention of a needle cover for preventing stinging that is housed in a bag is disclosed.
Further, in Patent Document 3, the applicant disclosed an invention of a clamp in which two tube clamping portions are formed on the opposing wall surfaces of the sealing portion and the bottom portion, respectively.
The needle cover for preventing puncture of Patent Documents 1 and 2 is troublesome because it is necessary to perform a two-step operation with both hands when storing the sharp tip of the winged needle in the cover. There was an indication.
The clamp described in Patent Document 3 is designed so that the tube can be securely clamped, but does not function as a needle cover for preventing false puncture.

特開平８−３８６０１号公報（図１から１５）JP-A-8-38601 (FIGS. 1 to 15) 特表平１１−５０６０３６号公報（図１から図９参照）Japanese National Patent Publication No. 11-506036 (see FIGS. 1 to 9) 特開２００３−２４５３４９号公報（図１から２参照）JP 2003-245349 A (see FIGS. 1 and 2)

最近、病院サイドから、誤刺防止用針カバーと緊急時に使用できるクランプが待望されているが、これらの双方の機能を有するものはなく、操作性も必ずしも満足できるものはない。 Recently, a needle cover for preventing stinging and a clamp that can be used in an emergency have been awaited from the hospital side, but none of these functions are available, and operability is not always satisfactory.

そこで本発明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次の発明に到達した。
［１］本発明は、翼付針（２１）とクランプ（１）とを有し、
前記クランプ（１）は、
封止部（２）と底部（３）とを有し、前記封止部（２）及び底部（３）は、それぞれ天面部と底面部とを有し、さらに長手方向と当該長手方向と略垂直に交差する側部方向とを有し、前記長手方向は前方部と後方部とを有し、
前記封止部（２）と前記底部（３）とは、それぞれの長手方向後方部を屈曲部（４）を介して一体に形成し、
前記屈曲部（４）にチューブ挿入孔（９）を形成し、
前記封止部（２）の底面部に少なくとも二個以上の挟持部（Ｔ２１、Ｔ２２）を前記底部（３）方向に向けて突設し、
当該挟持部（Ｔ２１、Ｔ２２）は、前記長手方向において、前方部寄りの第１挟持部（Ｔ２１）と、後方部寄りの第２挟持部（Ｔ２２）とを有し、
前記底部（３）の天面部に少なくとも二個以上の挟持部（Ｔ３１、Ｔ３２）を前記封止部（２）方向に向けて突設し、
当該挟持部（Ｔ３１、Ｔ３２）は、前記長手方向において、前方部寄りの第１挟持部（Ｔ３１）と、後方部寄りの第２挟持部（Ｔ３２）とを有し、
前記封止部（２）の前方部寄りの第１挟持部（Ｔ２１）と
前記底部（３）の前方部寄りの第１挟持部（Ｔ３１）、及び前記封止部（２）の後方部寄りの第２挟持部（Ｔ２２）と前記底部（３）の後方部寄りの第２挟持部（Ｔ３２）は、それぞれお互いに対向する位置に形成され、
前記封止部（２）または前記底部（３）の長手方向の前方部から中腹部の間の側部方向に側壁（７）を形成し、
前記封止部（２）の長手方向の前方部から中腹部の間の底面部の側部方向に、対向する一対の緊合突起部（５、５Ａ）を形成し、
前記底部（３）の長手方向の前方部から中腹部の間の天面部の側部方向で、前記緊合突起部（５、５Ａ）に対向する位置に、対向する一対の緊合溝部（６、６Ａ）を形成し、または
前記封止部（２）の長手方向の前方部から中腹部の間の底面部の側部方向に、対向する一対の緊合溝部（６、６Ａ）を形成し、
前記底部（３）の長手方向の前方部から中腹部の間の天面部の側部方向で、前記緊合溝部（６、６Ａ）に対向する位置に、対向する一対の緊合突起部（５、５Ａ）を形成し、
前記一対の緊合突起部（５、５Ａ）の間にチューブ挿入孔（１０）を形成し、
前記緊合突起部（５、５Ａ）は、複数の突起（５Ｔ、５ＡＴ）を天面部から底部方向に形成し、
前記緊合溝部（６、６Ａ）は、前記緊合突起部（５、５Ａ）の複数の突起（５Ｔ、５ＡＴ）を緊合する複数の溝（６Ｍ、６ＡＭ）を、天面部から底部方向に形成し、
前記緊合突起部（５、５Ａ）と前記緊合溝部（６、６Ａ）とは、相互に係合または嵌合により緊合でき、一度緊合したら、外部から強制的に開けようとしない限り、二度と開かないようにしっかりはめ合うことができるクランプ（１）であり、
前記翼付針（２１）は、
針（２２）と、針基（２２Ａ）とを有し、
前記針（２２）及び針基（２２Ａ）は、長手方向と当該長手方向と略垂直に交差する側部方向とを有し、前記長手方向は前方部と後方部とを有し、
前記針基（２２Ａ）は、側部方向の両側にそれぞれ翼（２３、２３）を装着し、前記針基（２１Ａ）は、後方部にチューブ（２４）を装着し、
前記クランプ（１）が前記翼付針（２１）のチューブ（２４）に装着された第１の使用位置では、
前記翼付針（２１）のチューブ（２４）は、前記クランプ（１）の前記屈曲部（４）のチューブ挿入孔（９）と、前記一対の緊合突起部（５、５Ａ）の間のチューブ挿入孔（１０）に挿入され、
前記クランプ（１）の前記緊合突起部（５、５Ａ）と前記緊合溝部（６、６Ａ）は、前記針（２２）とチューブ（２４）を挟持しない開いた状態にあり、
前記第１の使用位置から、前記クランプ（１）を前記針（２２）方向に、移動させると、前記針基（２２Ａ）後方近傍のチューブ（２４）は、前記クランプ（１）の側壁（２４）にガイドされながら、前記クランプ（１）の封止部（２）と底部（３）との間の空間内に収納され、さらに前記針（２２）も前記チューブ（２４）に追随して、前方部の先端から後方部の後端に至るまで全て、前記クランプ（１）の封止部（２）と底部（３）との間の空間内に収納され、
さらに前記緊合突起部（５、５Ａ）を前記緊合溝部（６、６Ａ）方向に押して、これらを緊合した第２の使用位置では、
前記チューブ（２４）は、前記封止部（２）の第２挟持部（Ｔ２２）と前記底部（３）の第２挟持部（Ｔ３２）とにより挟持され、前記針（２２）も前記封止部（２）の第１挟持部（Ｔ２１）と、前記底部（３）の第１挟持部（Ｔ３１）とにより挟持され、
前記緊合突起部（５、５Ａ）と前記緊合溝部（６、６Ａ）は、一度緊合すると容易に開かないので、前記針（２２）の鋭利な先端は、前記クランプ（１）の外に露出することがない、クランプ付翼付針を提供する。
［２］本発明は、動脈側回路（３２）と静脈側回路（３３）とに、［１］に記載の前記チューブ（２４）を介して、［１］に記載の前記クランプ付翼付針を装着した、体外循環回路（３１）を提供する。
Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following invention.
[1] The present invention has a winged needle (21) and a clamp (1),
The clamp (1)
It has a sealing part (2) and a bottom part (3), and the sealing part (2) and the bottom part (3) have a top surface part and a bottom surface part, respectively, and further, the longitudinal direction and the longitudinal direction are substantially the same. A longitudinally intersecting side direction, the longitudinal direction having a front part and a rear part,
The sealing part (2) and the bottom part (3) are formed integrally with the rear part in the longitudinal direction via the bent part (4),
Forming a tube insertion hole (9) in the bent portion (4);
At least two or more sandwiching portions (T21, T22) project toward the bottom portion (3) toward the bottom portion of the sealing portion (2),
The clamping part (T21, T22) has a first clamping part (T21) near the front part and a second clamping part (T22) near the rear part in the longitudinal direction,
At least two or more sandwiching portions (T31, T32) are projected from the top surface portion of the bottom portion (3) toward the sealing portion (2),
The clamping part (T31, T32) has a first clamping part (T31) near the front part and a second clamping part (T32) near the rear part in the longitudinal direction,
The first clamping part (T21) near the front part of the sealing part (2), the first clamping part (T31) near the front part of the bottom part (3), and the rear part of the sealing part (2) The second clamping part (T22) and the second clamping part (T32) near the rear part of the bottom part (3) are formed at positions facing each other, respectively.
A side wall (7) is formed in the side part direction between the front part in the longitudinal direction of the sealing part (2) or the bottom part (3) between the middle part,
A pair of opposing protrusions (5, 5A) are formed in the side part direction of the bottom surface part between the front part in the longitudinal direction of the sealing part (2) and the middle abdomen,
A pair of opposing fastening groove portions (6) at positions facing the fastening projection portions (5, 5A) in the side portion direction of the top surface portion between the front portion in the longitudinal direction of the bottom portion (3) and the middle abdominal portion. 6A), or a pair of opposing fastening groove portions (6, 6A) in the side portion direction of the bottom surface portion between the front portion in the longitudinal direction of the sealing portion (2) and the middle abdominal portion. ,
A pair of opposing fastening protrusions (5) at positions facing the fastening groove portions (6, 6A) in the lateral direction of the top surface portion between the front portion in the longitudinal direction of the bottom portion (3) and the middle abdominal portion. 5A),
A tube insertion hole (10) is formed between the pair of tight projections (5, 5A),
The binding protrusion (5, 5A) is formed with a plurality of protrusions (5T, 5AT) from the top surface to the bottom,
The fastening groove portions (6, 6A) include a plurality of grooves (6M, 6AM) for joining the plurality of projections (5T, 5AT) of the fastening projection portions (5, 5A) from the top surface portion to the bottom portion. Forming,
The tightening protrusion (5, 5A) and the tightening groove (6, 6A) can be engaged with each other by engagement or fitting, and once tightened, unless forcibly opened from the outside. A clamp (1) that can fit tightly to prevent it from opening again ,
The winged needle (21)
A needle (22) and a needle base (22A);
The needle (22) and the needle base (22A) have a longitudinal direction and a side direction that intersects the longitudinal direction substantially perpendicularly, and the longitudinal direction has a front part and a rear part,
The needle base (22A) is equipped with wings (23, 23) on both sides in the lateral direction, the needle base (21A) is equipped with a tube (24) on the rear part,
In the first use position where the clamp (1) is attached to the tube (24) of the winged needle (21),
The tube (24) of the winged needle (21) is located between the tube insertion hole (9) of the bent portion (4) of the clamp (1) and the pair of tightening protrusions (5, 5A). Inserted into the tube insertion hole (10),
The tightening protrusions (5, 5A) and the tightening grooves (6, 6A) of the clamp (1) are in an open state not sandwiching the needle (22) and the tube (24),
When the clamp (1) is moved in the direction of the needle (22) from the first use position, the tube (24) near the rear of the needle base (22A) is moved to the side wall (24 of the clamp (1)). ) And is accommodated in the space between the sealing part (2) and the bottom part (3) of the clamp (1), and the needle (22) follows the tube (24), Everything from the front end of the front part to the rear end of the rear part is housed in the space between the sealing part (2) and the bottom part (3) of the clamp (1),
Further, in the second use position where the tightening protrusions (5, 5A) are pushed in the direction of the tightening groove (6, 6A) and these are tightened,
The tube (24) is clamped by the second clamping part (T22) of the sealing part (2) and the second clamping part (T32) of the bottom part (3), and the needle (22) is also sealed. Sandwiched between the first clamping part (T21) of the part (2) and the first clamping part (T31) of the bottom part (3),
Since the tightening protrusions (5, 5A) and the tightening grooves (6, 6A) are not easily opened once they are tightened, the sharp tip of the needle (22) is attached to the outside of the clamp (1). Provided with a clamped winged needle that is not exposed to the surface .
[2] The present invention provides the clamped winged needle according to [1] via the tube (24) according to [1] to the artery side circuit (32) and the vein side circuit (33). An extracorporeal circuit (31) is provided.

通常使用時において、翼付針等のチューブ２４は、封止部２の第２挟持部Ｔ２２と底部３の第２挟持部Ｔ３２とにより挟持され、針２２も封止部２の第１挟持部Ｔ２１と、底部３の第１挟持部Ｔ３１とにより挟持され、緊合突起部５と緊合溝部６は、容易に開かないので、針２２の鋭利な先端は、クランプ１の外に露出することはない。これにより、針の廃棄作業を安全に行える。また操作も片手で行えるので、操作性が良い。
また緊急使用時において、翼付針等のチューブ２４は、封止部２の第１挟持部Ｔ２１と、底部３の第１挟持部Ｔ３１、及び封止部２の第２挟持部Ｔ２２と底部３の第２挟持部Ｔ３２とにより二箇所で挟持され、緊合突起部５と緊合溝部６は、容易に開かないので、確実に体外循環をクランプ１で中断して、チューブ２４を切断して、速やかに避難することができる。
During normal use, the tube 24 such as a winged needle is clamped by the second clamping part T22 of the sealing part 2 and the second clamping part T32 of the bottom part 3, and the needle 22 is also the first clamping part of the sealing part 2. Since it is clamped by T21 and the first clamping part T31 of the bottom part 3 and the fastening projection part 5 and the fastening groove part 6 do not open easily, the sharp tip of the needle 22 is exposed outside the clamp 1. There is no. Thereby, the disposal work of the needle can be performed safely. Moreover, since the operation can be performed with one hand, the operability is good.
In an emergency use, the tube 24 such as a winged needle includes the first clamping part T21 of the sealing part 2, the first clamping part T31 of the bottom part 3, and the second clamping part T22 and the bottom part 3 of the sealing part 2. Since the tightening protrusion 5 and the tightening groove 6 are not easily opened, the extracorporeal circulation is reliably interrupted by the clamp 1 and the tube 24 is cut. Evacuate quickly.

図１は本発明のクランプ付き翼付針の概略図、図２は図１の断面図、図３は本発明のクランプ付き翼付針の使用状態図（通常使用時）、図４は図３の断面図、図５は本発明のクランプ付き翼付針の使用状態図（緊急使用時）、図６は図５の断面図である。図７は図１の一部拡大図、図８は図７のその他の実施例を示す一部拡大図、図９は本発明の体外循環回路、クランプ付き翼付針の使用状態図（緊急使用時）である。
本発明のクランプ付き翼付針は図１、図２に例示するように、クランプ１と翼付針２１とを有する。
クランプ１は、封止部２と底部３とを有する。封止部２及び底部３は、それぞれ天面部と底面部とを有し、さらに長手方向と当該長手方向と略垂直に交差する側部方向とを有し、前記長手方向は前方部と後方部とを有する。
封止部２と底部３とは、それぞれの長手方向後方部を屈曲部４を介して一体に形成し、屈曲部４にチューブ挿入孔９を形成している。
封止部２の底面部に少なくとも二個以上の挟持部（Ｔ２１、Ｔ２２）を底部３方向に向けて突設している。
当該挟持部（Ｔ２１、Ｔ２２）は、長手方向において、前方部寄りの第１挟持部Ｔ２１と、後方部寄りの第２挟持部Ｔ２２とを有する。
他方、底部３の天面部に少なくとも二個以上の挟持部（Ｔ３１、Ｔ３２）を封止部２方向に向けて突設している。
当該挟持部（Ｔ３１、Ｔ３２）は、長手方向において、前方部寄りの第１挟持部Ｔ３１と、後方部寄りの第２挟持部Ｔ３２とを有する。
封止部２の前方部寄りの第１挟持部Ｔ２１と底部３の前方部寄りの第１挟持部Ｔ３）、及び封止部２の後方部寄りの第２挟持部Ｔ２２と底部３の後方部寄りの第２挟持部Ｔ３２は、それぞれお互いに対向する位置に形成している。
チューブ挟持部（Ｔ２１、Ｔ２２）［（Ｔ３１、Ｔ３２）］は、三個ないし四個形成しても良い。
前記封止部２と前記底部３の前方部から中腹部の間に、それぞれの対向する上壁面（底面部）と下壁面（天面部）に、それぞれ少なくとも一対の緊合突起部５、５Ａと緊合溝部６、６Ａを形成している。緊合突起部５、５Ａと緊合溝部６、６Ａは、前記封止部２と前記底部３の前方部から中腹部の間であれば、どこに形成しても良い。
1 is a schematic view of a winged needle with a clamp according to the present invention, FIG. 2 is a cross-sectional view of FIG. 1, FIG. 3 is a diagram showing the state of use of the winged needle with a clamp according to the present invention (during normal use), and FIG. FIG. 5 is a use state diagram of the winged needle with clamp of the present invention (in emergency use), and FIG. 6 is a cross-sectional view of FIG. 7 is a partially enlarged view of FIG. 1, FIG. 8 is a partially enlarged view showing another embodiment of FIG. 7, and FIG. 9 is a state of use of the extracorporeal circuit of the present invention and a winged needle with a clamp (emergency use). Time).
The winged needle with a clamp of the present invention has a clamp 1 and a winged needle 21 as illustrated in FIGS. 1 and 2 .
The clamp 1 has a sealing portion 2 and a bottom portion 3. The sealing portion 2 and the bottom portion 3 each have a top surface portion and a bottom surface portion, and further have a longitudinal direction and a side portion direction substantially perpendicular to the longitudinal direction, the longitudinal direction being a front portion and a rear portion. And have.
The sealing part 2 and the bottom part 3 are formed integrally with the rear part in the longitudinal direction via the bent part 4, and a tube insertion hole 9 is formed in the bent part 4.
At least two or more sandwiching portions (T21, T22) project from the bottom portion of the sealing portion 2 in the direction of the bottom portion 3.
The said clamping part (T21, T22) has the 1st clamping part T21 near the front part, and the 2nd clamping part T22 near the back part in the longitudinal direction.
On the other hand, at least two or more sandwiching portions (T31, T32) project from the top surface portion of the bottom portion 3 toward the sealing portion 2 direction.
The said clamping part (T31, T32) has the 1st clamping part T31 near the front part, and the 2nd clamping part T32 near the back part in the longitudinal direction.
The first clamping part T21 near the front part of the sealing part 2 and the first clamping part T3 near the front part of the bottom part 3), and the second clamping part T22 near the rear part of the sealing part 2 and the rear part of the bottom part 3 The close second clamping portions T32 are formed at positions facing each other.
Three or four tube clamping portions (T21, T22) [(T31, T32)] may be formed.
Between the front part and the middle part of the sealing part 2 and the bottom part 3, at least a pair of tightening protrusions 5 and 5A are respectively provided on the opposing upper wall surface (bottom surface part) and lower wall surface (top surface part). Tightening groove portions 6 and 6A are formed. The tightening protrusions 5, 5 A and the tightening groove portions 6, 6 A may be formed anywhere as long as they are between the front part and the middle part of the sealing part 2 and the bottom part 3.

さらに前記封止部２または前記底部３の前方部から中腹部の間の側壁面に、側壁７を形成している。側壁７も前記封止部２または前記底部３のどちらか一方に形成し、これらの前方部から中腹部の間であればどこに形成しても良い。側壁７を形成することにより、翼付針２１をクランプ１内に確実に収納することができる。
また前記少なくとも一対の緊合突起部５、５Ａの間にチューブ挿入孔１０を形成している。緊合突起部５、５Ａは二対以上形成しても良い。
また前記封止部２と前記底部３の天面部と底面部に突部８を形成することにより、片手で把握しやすくなり、操作性が向上する。
Further, a side wall 7 is formed on the side wall surface between the front part and the middle part of the sealing part 2 or the bottom part 3. The side wall 7 may also be formed on either the sealing portion 2 or the bottom portion 3 and may be formed anywhere between the front portion and the middle portion. By forming the side wall 7, the winged needle 21 can be reliably stored in the clamp 1.
Further, a tube insertion hole 10 is formed between the at least one pair of tight projections 5 and 5A. Two or more tightening protrusions 5 and 5A may be formed.
Also by forming a projection 8 on the top surface portion and the bottom portion of the bottom 3 and the sealing portion 2, it becomes easy to grasp with one hand, operability is improved.

緊合突起部５、５Ａと緊合溝部６、６Ａは、図１、図７、８に例示するように、相互に緊合でき、一度緊合したら、外部からドライバー等で強制的に開けようとしない限り、二度と開かない形態の組み合わせであれば何でもよい。したがって本発明の「緊合」の形態の組み合わせは、係合、嵌合の双方を含む。
図１、図７、８の例示では、緊合突起部５、５Ａは、封止部２内壁面側、緊合溝部６、６Ａは、底部３の内壁面側に形成されているが、緊合突起部５、５Ａを底部３の内壁面側、緊合溝部６、６Ａを、封止部２の内壁面側に形成しても良い。
さらに詳述すれば封止部２の長手方向の前方部から中腹部の間の底面部の側部方向に、対向する一対の緊合突起部（５、５Ａ）を形成し、底部３の長手方向の前方部から中腹部の間の天面部の側部方向で、前記緊合突起部（５、５Ａ）に対向する位置に、対向する一対の緊合溝部（６、６Ａ）を形成してもよい。
あるいは封止部２の長手方向の前方部から中腹部の間の底面部に、対向する一対の緊合溝部（６、６Ａ）を形成し、底部３の長手方向の前方部から中腹部の間の天面部で、緊合溝部（６、６Ａ）に対向する位置に、対向する一対の緊合突起部（５、５Ａ）を形成してもよい。
また図７に例示するように、緊合突起部５の突起を外側に形成しても良いし、図８に例示するように、緊合突起部５Ａの突起を内側に形成しても良い。
さらに詳述すれば緊合突起部（５、５Ａ）は、複数の突起（５Ｔ、５ＡＴ）を天面部から底部方向に形成し、緊合溝部（６、６Ａ）は、緊合突起部（５、５Ａ）の複数の突起（５Ｔ、５ＡＴ）を緊合する複数の溝（６Ｍ、６ＡＭ）を、天面部から底部方向に形成している。
As shown in FIGS. 1, 7, and 8, the tightening protrusions 5 and 5 A and the tightening grooves 6 and 6 A can be engaged with each other. As long as it is a combination of forms that will never open again, it may be anything. Therefore, the combination of the “tight” form of the present invention includes both engagement and fitting.
1, 7, and 8, the tightening protrusions 5 and 5A are formed on the inner wall surface side of the sealing portion 2 and the tightening groove portions 6 and 6A are formed on the inner wall surface side of the bottom portion 3. The mating protrusions 5, 5 A may be formed on the inner wall surface side of the bottom portion 3, and the fastening groove portions 6, 6 A may be formed on the inner wall surface side of the sealing portion 2.
More specifically, a pair of opposing protrusions (5, 5A) are formed in the side portion direction of the bottom surface portion between the front portion in the longitudinal direction of the sealing portion 2 and the middle abdominal portion, and the length of the bottom portion 3 is determined. A pair of opposing fastening groove portions (6, 6A) are formed at positions facing the fastening protrusion portions (5, 5A) in the side portion direction of the top surface portion between the front portion of the direction and the mid-abdominal portion. Also good.
Alternatively, a pair of opposing fastening groove portions (6, 6A) are formed on the bottom surface portion between the front portion in the longitudinal direction of the sealing portion 2 and the middle abdominal portion, and between the front portion in the longitudinal direction of the bottom portion 3 and the middle abdominal portion. A pair of opposing protrusions (5, 5A) may be formed at positions facing the engagement grooves (6, 6A) on the top surface of the.
Further, as illustrated in FIG. 7, the protrusion of the tightening protrusion 5 may be formed on the outer side, and as illustrated in FIG. 8, the protrusion of the tightening protrusion 5 A may be formed on the inner side.
More specifically, the tightening protrusions (5, 5A) form a plurality of protrusions (5T, 5AT) from the top surface to the bottom, and the tightening grooves (6, 6A) 5A), a plurality of grooves (6M, 6AM) for joining the plurality of protrusions (5T, 5AT) are formed in the direction from the top to the bottom.

翼付針２１は、針２２と、針基２２Ａとを有し、針２２及び針基２２Ａは、長手方向と当該長手方向と略垂直に交差する側部方向とを有し、前記長手方向は前方部と後方部とを有する。
針基２１Ａは、側部方向の両側にそれぞれ翼（２３、２３）を装着し、針基２１Ａは、後方部にチューブ２４を装着している。
次に本発明のクランプ付翼付針の使用方法の一例について説明する。
［通常使用時］
図１（図２）の状態（第１の使用位置；クランプ１が翼付針２１のチューブ２４に装着された状態、さらに詳述すれば、クランプ１の緊合突起部５と緊合溝部６が開いた状態にあり、翼付針２１のチューブ２４が、クランプ１のチューブ挿入孔９、１０に挿入された状態）から、片手でクランプ１を把握し、同片手で、屈曲部４壁面を針２２方向に押して、クランプ１を針２２方向に前進させる。クランプ１の前進中、チューブ２４は側壁２４にガイドされているので、針２２を前方部の先端から後方部の後端に至るまで全て、確実にクランプ１内（封止部２と底部３の対向する上壁面（底面部）と下壁面（天面部）の間の空間内）に収納することができる。
翼２３が屈曲部４の壁面の当接するまで、クランプ１を前進させ、針２２の鋭利な先端をクランプ１内（封止部２と底部３の対向する上壁面（底面部）と下壁面（天面部）の間の空間内）に収納し、緊合突起部５を緊合溝部６方向に押し下げて、これらを緊合する。（第２の使用位置）
第２の使用位置では、チューブ２４は、封止部２の第２挟持部Ｔ２２と底部３の第２挟持部Ｔ３２とにより挟持され、針２２も封止部２の第１挟持部Ｔ２１と、底部３の第１挟持部Ｔ３１とにより挟持されており、緊合突起部５と緊合溝部６は、容易に開かないので、針２２の鋭利な先端は、外に露出することはない。これにより、針の廃棄作業を安全に行える。また操作も片手で行えるので、操作性が良い。
The winged needle 21 has a needle 22 and a needle base 22A. The needle 22 and the needle base 22A have a longitudinal direction and a side direction substantially perpendicular to the longitudinal direction, and the longitudinal direction is It has a front part and a rear part.
The needle base 21A is equipped with wings (23, 23) on both sides in the lateral direction, and the needle base 21A is equipped with a tube 24 at the rear part.
Next, an example of a method for using the clamped winged needle of the present invention will be described.
[Normal use]
State of FIG. 1 (FIG. 2) ( first use position; state in which the clamp 1 is mounted on the tube 24 of the winged needle 21 ; more specifically, the tightening protrusion 5 and the tightening groove 6 of the clamp 1 In a state where the tube 24 of the winged needle 21 is inserted into the tube insertion holes 9 and 10 of the clamp 1), the clamp 1 is grasped with one hand, and the bent portion 4 wall surface is grasped with the one hand. Pushing in the direction of the needle 22 advances the clamp 1 in the direction of the needle 22. Since the tube 24 is guided by the side wall 24 during the advancement of the clamp 1, all the needles 22 from the front end of the front part to the rear end of the rear part are securely inserted into the clamp 1 (the sealing part 2 and the bottom part 3. It can be accommodated in the space between the opposing upper wall surface (bottom surface portion) and lower wall surface (top surface portion).
The clamp 1 is advanced until the wing 23 comes into contact with the wall surface of the bent portion 4, and the sharp tip of the needle 22 is moved within the clamp 1 (the upper wall surface (bottom surface portion) and the lower wall surface (the sealing portion 2 and the bottom portion 3 are opposed to each other). It is housed in the space between the top surface portions), and the fastening protrusions 5 are pushed down in the direction of the fastening groove portions 6 so that they are fastened together. (Second use position)
In the second use position, the tube 24 is sandwiched between the second sandwiching portion T22 of the sealing portion 2 and the second sandwiching portion T32 of the bottom portion 3, and the needle 22 is also sandwiched between the first sandwiching portion T21 of the sealing portion 2. Since it is clamped by the 1st clamping part T31 of the bottom part 3 and the fastening protrusion part 5 and the fastening groove part 6 do not open easily, the sharp front-end | tip of the needle | hook 22 is not exposed outside. Thereby, the disposal work of the needle can be performed safely. Moreover, since the operation can be performed with one hand, the operability is good.

［緊急使用時］
図９に例示するように体外循環回路３１の動脈側回路３２と静脈側回路３３に、コネクタ２５、３５を介して、クランプ１をチューブ２４の途中に装着した翼付針２１を接続した状態（体外循環時）から、地震等の天災地変がおきた場合、図５（図６）に例示するように、クランプ１を閉じる（緊合突起部５を緊合溝部６方向に押し下げて、これらを緊合する）。
チューブ２４は、封止部２の第１挟持部Ｔ２１と、底部３の第１挟持部Ｔ３１、及び封止部２の第２挟持部Ｔ２２と底部３の第２挟持部Ｔ３２とにより二箇所で挟持され、緊合突起部５と緊合溝部６は、容易に開かないので、確実に体外循環をクランプ１で中断して、コネクタ２５、３５とクランプ１間のチューブ２４を切断して、速やかに避難することができる。
[Emergency use]
As illustrated in FIG. 9, the winged needle 21 with the clamp 1 attached to the middle of the tube 24 is connected to the arterial circuit 32 and the venous circuit 33 of the extracorporeal circuit 31 via connectors 25 and 35 ( When natural disasters such as an earthquake occur from the time of extracorporeal circulation, the clamp 1 is closed as shown in FIG. 5 (FIG. 6). Tighten)
The tube 24 is provided at two locations by a first clamping part T21 of the sealing part 2, a first clamping part T31 of the bottom part 3, and a second clamping part T22 of the sealing part 2 and a second clamping part T32 of the bottom part 3. Since the clamp protrusion 5 and the clamp groove 6 are not easily opened, the extracorporeal circulation is reliably interrupted by the clamp 1, and the tube 24 between the connectors 25, 35 and the clamp 1 is cut quickly. You can evacuate.

本発明のクランプの概略図Schematic of the clamp of the present invention 図１の断面図Sectional view of FIG. 本発明のクランプの使用状態図（通常使用時）Use state diagram of the clamp of the present invention (normal use) 図３の断面図Sectional view of FIG. 本発明のクランプの使用状態図（緊急使用時）Use state diagram of the clamp of the present invention (in emergency use) 図５の断面図Sectional view of FIG. 図１の一部拡大図Partial enlarged view of FIG. 図７のその他の実施例を示す一部拡大図Partial enlarged view showing another embodiment of FIG. 本発明の体外循環回路・クランプの使用状態図（緊急使用時）Use state diagram of extracorporeal circuit / clamp of the present invention (for emergency use)

Explanation of symbols

１クランプ
２封止部
３底部
４屈曲部
５、５Ａ緊合突起部
５Ｔ、５ＡＴ突起
６、６Ａ緊合溝部
６Ｍ、６ＡＭ溝
Ｔ挟持部
Ｔ２１前方部寄りの第１挟持部（封止部２）
Ｔ２２後方部寄りの第２挟持部（封止部２）
Ｔ３１前方部寄りの第１挟持部（底部３）
Ｔ３２後方部寄りの第２挟持部（底部３）
７側壁
８突部
９、１０チューブ挿入孔
２１翼付針
２２針
２２Ａ針基
２３翼
２４チューブ
２５コネクタ
３１体外循環回路
３２動脈側回路
３３静脈側回路
３５コネクタ
DESCRIPTION OF SYMBOLS 1 Clamp 2 Sealing part 3 Bottom part 4 Bending part 5, 5A Tightening projection part 5T, 5AT Protrusion 6, 6A Tightening groove part 6M, 6AM Groove T Clamping part T21 1st clamping part near the front part (sealing part 2)
T22 2nd clamping part near back part (sealing part 2)
T31 1st clamping part near the front part (bottom part 3)
T32 2nd clamping part (bottom part 3) near rear part
7 Side wall 8 Protrusion 9, 10 Tube insertion hole 21 Wing needle 22 Needle
22A Needle base 23 Wing 24 Tube 25 Connector 31 Extracorporeal circuit 32 Arterial circuit 33 Venous circuit 35 Connector

Claims

A winged needle (21) and a clamp (1);
The clamp (1)
It has a sealing part (2) and a bottom part (3), and the sealing part (2) and the bottom part (3) have a top surface part and a bottom surface part, respectively, and further, the longitudinal direction and the longitudinal direction are substantially the same. A longitudinally intersecting side direction, the longitudinal direction having a front part and a rear part,
The sealing part (2) and the bottom part (3) are formed integrally with the rear part in the longitudinal direction via the bent part (4),
Forming a tube insertion hole (9) in the bent portion (4);
At least two or more sandwiching portions (T21, T22) project toward the bottom portion (3) toward the bottom portion of the sealing portion (2),
The clamping part (T21, T22) has a first clamping part (T21) near the front part and a second clamping part (T22) near the rear part in the longitudinal direction,
At least two or more sandwiching portions (T31, T32) are projected from the top surface portion of the bottom portion (3) toward the sealing portion (2),
The clamping part (T31, T32) has a first clamping part (T31) near the front part and a second clamping part (T32) near the rear part in the longitudinal direction,
The first clamping part (T21) near the front part of the sealing part (2), the first clamping part (T31) near the front part of the bottom part (3), and the rear part of the sealing part (2) The second clamping part (T22) and the second clamping part (T32) near the rear part of the bottom part (3) are formed at positions facing each other, respectively.
A side wall (7) is formed in the side part direction between the front part in the longitudinal direction of the sealing part (2) or the bottom part (3) between the middle part,
A pair of opposing protrusions (5, 5A) are formed in the side part direction of the bottom surface part between the front part in the longitudinal direction of the sealing part (2) and the middle abdomen,
A pair of opposing fastening groove portions (6) at positions facing the fastening projection portions (5, 5A) in the side portion direction of the top surface portion between the front portion in the longitudinal direction of the bottom portion (3) and the middle abdominal portion. 6A), or a pair of opposing fastening groove portions (6, 6A) in the side portion direction of the bottom surface portion between the front portion in the longitudinal direction of the sealing portion (2) and the middle abdominal portion. ,
A pair of opposing fastening protrusions (5) at positions facing the fastening groove portions (6, 6A) in the lateral direction of the top surface portion between the front portion in the longitudinal direction of the bottom portion (3) and the middle abdominal portion. 5A),
A tube insertion hole (10) is formed between the pair of tight projections (5, 5A),
The binding protrusion (5, 5A) is formed with a plurality of protrusions (5T, 5AT) from the top surface to the bottom,
The fastening groove portions (6, 6A) include a plurality of grooves (6M, 6AM) for joining the plurality of projections (5T, 5AT) of the fastening projection portions (5, 5A) from the top surface portion to the bottom portion. Forming,
The tightening protrusion (5, 5A) and the tightening groove (6, 6A) can be engaged with each other by engagement or fitting, and once tightened, unless forcibly opened from the outside. A clamp (1) that can fit tightly to prevent it from opening again ,
The winged needle (21)
A needle (22) and a needle base (22A);
The needle (22) and the needle base (22A) have a longitudinal direction and a side direction that intersects the longitudinal direction substantially perpendicularly, and the longitudinal direction has a front part and a rear part,
The needle base (22A) is equipped with wings (23, 23) on both sides in the lateral direction, the needle base (21A) is equipped with a tube (24) on the rear part,
In the first use position where the clamp (1) is attached to the tube (24) of the winged needle (21),
The tube (24) of the winged needle (21) is located between the tube insertion hole (9) of the bent portion (4) of the clamp (1) and the pair of tightening protrusions (5, 5A). Inserted into the tube insertion hole (10),
The tightening protrusions (5, 5A) and the tightening grooves (6, 6A) of the clamp (1) are in an open state not sandwiching the needle (22) and the tube (24),
When the clamp (1) is moved in the direction of the needle (22) from the first use position, the tube (24) near the rear of the needle base (22A) is moved to the side wall (24 of the clamp (1)). ) And is accommodated in the space between the sealing part (2) and the bottom part (3) of the clamp (1), and the needle (22) follows the tube (24), Everything from the front end of the front part to the rear end of the rear part is housed in the space between the sealing part (2) and the bottom part (3) of the clamp (1),
Further, in the second use position where the tightening protrusions (5, 5A) are pushed in the direction of the tightening groove (6, 6A) and these are tightened,
The tube (24) is clamped by the second clamping part (T22) of the sealing part (2) and the second clamping part (T32) of the bottom part (3), and the needle (22) is also sealed. Sandwiched between the first clamping part (T21) of the part (2) and the first clamping part (T31) of the bottom part (3),
Since the tightening protrusions (5, 5A) and the tightening grooves (6, 6A) are not easily opened once they are tightened, the sharp tip of the needle (22) is attached to the outside of the clamp (1). A winged needle with a clamp, characterized in that it is not exposed to the surface.

The clamped winged needle according to claim 1 is attached to the artery side circuit (32) and the vein side circuit (33) via the tube (24) according to claim 1. An extracorporeal circuit (31).