JP4872659B2

JP4872659B2 - Vacuum blood collection tube holder

Info

Publication number: JP4872659B2
Application number: JP2006352228A
Authority: JP
Inventors: 功安村; 重信高橋
Original assignee: JMS Co Ltd
Current assignee: JMS Co Ltd
Priority date: 2006-12-27
Filing date: 2006-12-27
Publication date: 2012-02-08
Anticipated expiration: 2026-12-27
Also published as: JP2008161311A

Description

本発明は、真空採血管と該真空採血管のホルダーを用いて行う真空採血法などにおいて生じる真空採血管のキャップ部を穿刺する穿刺針を被覆する弾性材によるキックバック現象を防止し、かつ種々の種類の採血管、特に真空採血管のキャップ部材が薄いもの、あるいは厚いものであっても該採血管を確実に、かつ真空採血管ホルダー内に真空採血管が過挿入されること等による破損を生じることなく保持することができる真空採血管ホルダーに関する。 The present invention prevents a kickback phenomenon caused by an elastic material covering a puncture needle that punctures a cap portion of a vacuum blood collection tube, which occurs in a vacuum blood collection method performed using a vacuum blood collection tube and a vacuum blood collection tube holder, and the like. Types of blood collection tubes, especially those with thin or thick vacuum blood collection caps, damage due to the blood collection tube being securely inserted and excessively inserted into the vacuum blood collection tube holder The present invention relates to a vacuum blood collection tube holder that can be held without causing any problems.

病院等の臨床検査の際に行われている採血方法の一つとして真空採血管を用いる方法がある。この方法は真空採血管を真空採血管ホルダーに保持させ、該真空採血管ホルダーの先端部に装着された採血針あるいは採血針が接続されたチューブの採血針により採血した血液を真空採血管の封止部あるいはキャップ部を穿刺した穿刺針により前記真空採血管内に該真空採血管の真空度に応じてその所望量を取り入れることにより行われるものである。
特公平４−６４２６０号公報特公平２−９３８号公報 One method of blood collection used in clinical examinations at hospitals and the like is a method using a vacuum blood collection tube. In this method, a vacuum blood collection tube is held by a vacuum blood collection tube holder, and blood collected by a blood collection needle attached to the tip of the vacuum blood collection tube holder or a blood collection needle connected to the blood collection needle is sealed in the vacuum blood collection tube. This is performed by introducing a desired amount into the vacuum blood collection tube according to the degree of vacuum of the vacuum blood collection tube by a puncture needle that has punctured the stop or cap portion.
Japanese Examined Patent Publication No. 4-64260 Japanese Patent Publication No. 2-938

真空採血方法で用いる真空採血管の穿刺針は真空採血管ホルダーの厚肉のゴム栓あるいはフィルム状栓を穿刺して真空採血管内に採血した血液を取り入れた後には前記穿刺針は再シールされる必要があるため、穿刺針には弾性のある再シール性材料、例えば薄いゴム製のチューブが穿刺針に被せてある。しかしながら、この再シール性材料は前記キャップ部の穿刺とともに圧縮され、この圧縮力により真空採血管が元に戻る現象、いわゆるキックバック現象が起こる。本発明は簡単な構造でこのキックバック現象を防止した真空採血管ホルダーを提供することにある。 The puncture needle of the vacuum blood collection tube used in the vacuum blood collection method is punctured with a thick rubber plug or film plug of the vacuum blood collection tube holder, and the blood collected in the vacuum blood collection tube is re-sealed. Because of the necessity, the puncture needle is covered with an elastic resealable material, for example, a thin rubber tube. However, the resealable material is compressed along with the puncture of the cap portion, and a phenomenon in which the vacuum blood collection tube returns to the original state by the compressive force, a so-called kickback phenomenon occurs. An object of the present invention is to provide a vacuum blood collection tube holder which has a simple structure and prevents this kickback phenomenon.

本発明の第１は、真空採血管が挿入される開口部（以下、開口部という）と該開口部とは反対側端部に採血針あるいは採血針が接続されたチューブを連結可能な接続部を有する真空採血管が挿入される円筒状物、および該円筒状物内に挿入される真空採血管のキャップ部を穿刺する弾性被覆材で被覆された穿刺針を少なくとも有して構成され、かつ下記（１）〜（３）の要件を満足することを特徴とする前記筒状物内に真空採血管を保持可能な真空採血管ホルダーを提供することにより前記課題を解決することができた。
（１）前記円筒状物の壁部内壁面の一部が長軸方向に形成された扁平面であること。
（２）前記扁平面の壁部は、接続部側は真空採血管のキャップ部が接触した場合には変形が生じる厚さ部分（以下、薄肉部分という）で構成され、また前記薄肉部の開口部側は前記薄肉部分より厚肉で前記弾性被覆材のキックバック力によっては真空採血管のキャップ部による変形が生ぜず、したがって真空採血管のキックバックが生じない厚さ部分（以下、厚肉部という）で構成されていること。
（３）前記厚肉部と薄肉部分の肉厚差は扁平面の壁部の外面側に形成されていること。 A first aspect of the present invention is a connecting portion that can connect an opening (hereinafter referred to as an opening) into which a vacuum blood collection tube is inserted and a blood collecting needle or a tube having a blood collecting needle connected to an end opposite to the opening. A cylindrical object into which a vacuum blood collection tube is inserted, and a puncture needle covered with an elastic coating material that punctures a cap part of the vacuum blood collection tube inserted into the cylindrical object, and The above-mentioned problem could be solved by providing a vacuum blood collection tube holder capable of holding a vacuum blood collection tube in the cylindrical object, which satisfies the following requirements (1) to (3).
(1) A part of the inner wall surface of the wall portion of the cylindrical object is a flat surface formed in the long axis direction.
(2) The wall portion of the flat surface is composed of a thickness portion (hereinafter referred to as a thin portion) that is deformed when the cap portion of the vacuum blood collection tube contacts the connection portion side, and the opening of the thin portion is also provided. The thickness side of the portion is thicker than the thin portion, and the thickness of the vacuum blood collection tube does not cause deformation due to the kickback force of the elastic covering material, and therefore the kickback of the vacuum blood collection tube does not occur (hereinafter referred to as thick wall). Part).
(3) The thickness difference between the thick wall portion and the thin wall portion is formed on the outer surface side of the flat wall portion.

本出願人は先に前記（１）の要件を満足する真空採血管ホルダーを出願している。ただこの真空採血管には前記キックバック現象による反発力に抗しきれず真空採血管ホルダー内に挿入され保持された真空採血管が開口部に徐々に移動するという問題が生じることがあった。 The present applicant has previously filed a vacuum blood collection tube holder that satisfies the requirement (1). However, this vacuum blood collection tube sometimes has a problem that the vacuum blood collection tube inserted and held in the vacuum blood collection tube holder cannot be resisted by the repulsive force due to the kickback phenomenon and gradually moves to the opening.

本発明者らは前記問題が生じる要因について種々検討し、前記のような問題が生じるのは以下に述べるような要因によるのではないかと推測した。
先に出願した真空採血管ホルダーはその扁平面の壁部肉厚が一定厚さのものであり、かつ該肉厚は真空採血管ホルダー内への真空採血管の挿入性、採血時における真空採血管ホルダーの真空採血管の保持力、および採血の終了後に真空採血管ホルダーより真空採血管を取出す際における真空採血管のキャップの破損や真空採血管からの離脱の防止等の各要件をできるだけ満足するように考慮して決定されるものであった。 The inventors of the present invention have studied various factors that cause the above-described problems, and have presumed that the above-described problems may be caused by the following factors.
The previously applied vacuum blood collection tube holder has a flat wall thickness that is constant, and the wall thickness is determined by the insertion property of the vacuum blood collection tube into the vacuum blood collection tube holder and the vacuum collection at the time of blood collection. Satisfies as much as possible of each requirement such as retention of the vacuum blood collection tube of the blood vessel holder and prevention of breakage of the vacuum blood collection tube cap and removal from the vacuum blood collection tube when removing the vacuum blood collection tube from the vacuum blood collection tube holder after blood collection is completed It was decided to take into account.

すなわち、前記各要件のうち前記保持力は扁平面の壁部の肉厚を大きくすればするほど大きくなるが、真空採血管の挿入性は低下し真空採血管ホルダーを挿入するために大きな力を必要とするものとなり、また真空採血管のキャップの破損や真空採血管からの離脱も生じ易くなり、逆に真空採血管の挿入性を優先して前記扁平面の壁部の肉厚を小さくすると前記真空採血管の挿入性は改善されるが、前記保持力は小さくなってしまう。したがって扁平面の壁部の肉厚は前記各要件をバランスした考慮したものとなっていた。 That is, among the above requirements, the holding force increases as the wall thickness of the flat surface increases, but the insertion property of the vacuum blood collection tube decreases, and a large force is required to insert the vacuum blood collection tube holder. It becomes necessary, and it is easy to cause breakage of the cap of the vacuum blood collection tube and detachment from the vacuum blood collection tube, and conversely, if the wall thickness of the flat surface is reduced by giving priority to the insertion property of the vacuum blood collection tube Although the insertion property of the vacuum blood collection tube is improved, the holding force is reduced. Therefore, the wall thickness of the flat plane wall has been a balance between the above requirements.

しかしながら、前記扁平面の壁部の肉厚が前記のように前記の各要件をバランスさせた一定肉厚である真空採血管ホルダーは、該真空採血管ホルダーに真空採血管を保持させた場合の保持状態は図４に示すような状態にある。すなわち扁平面の壁部には真空採血管のキャップの接触点より真空採血管挿入開口部側に向かって広い範囲にわたって壁部の拡径による変形Ａ′が生じる。そして、前記扁平面の壁部の広い範囲にわたる変形Ａ′と扁平面の壁部自体が上述のように保持力のみを考慮した肉厚のものでないため、前記キックバック現象による反発力が大きい場合にはその反発力に抗しきれず保持された真空採血管が真空採血管ホルダー内を同図に矢印で示すように開口部側に大きく移動してしまうと考えられる。 However, a vacuum blood collection tube holder in which the wall thickness of the flat surface is a constant wall thickness that balances the above-mentioned requirements as described above is the case where the vacuum blood collection tube holder holds the vacuum blood collection tube. The holding state is as shown in FIG. That is, deformation A ′ due to the diameter expansion of the wall portion occurs over a wide range from the contact point of the cap of the vacuum blood collection tube toward the vacuum blood collection tube insertion opening side in the flat wall portion. When the deformation A ′ over a wide range of the flat wall and the flat wall itself are not thick considering only the holding force as described above, the repulsive force due to the kickback phenomenon is large. In this case, it is considered that the vacuum blood collection tube held without resisting the repulsive force largely moves to the opening side in the vacuum blood collection tube holder as indicated by the arrow in FIG.

これに対して前記（１）〜（３）の要件を満足する本願発明の真空採血管ホルダーは、該真空採血管ホルダーに真空採血管を保持させた場合の保持状態は図３に示すような状態にある。この図３に示す真空採血管ホルダーの真空採血管の保持状態においては薄肉部３に隣接する厚肉部４は、前記穿刺針の弾性被覆材のキックバック現象による反発力によっては真空採血管のキャップ部による変形が生じないので、キックバック現象による反発力によって真空採血管のキャップ部が厚肉部４に移動することがない。したがってキックバック現象による反発力による真空採血管が後方に移動する場合があるとしてもその移動は薄肉部内に留まり、その移動距離は同図の矢印で示すように非常に小さい。なお厚肉部４が変形しないとは全く変形しない場合だけでなく、真空採血管が厚肉部内に移動することができない程度の範囲内で変形するような場合も含むものである。 On the other hand, in the vacuum blood collection tube holder of the present invention that satisfies the requirements (1) to (3), the holding state when the vacuum blood collection tube is held in the vacuum blood collection tube holder is as shown in FIG. Is in a state. In the state where the vacuum blood collection tube of the vacuum blood collection tube holder shown in FIG. 3 is held, the thick wall portion 4 adjacent to the thin wall portion 3 has a vacuum blood collection tube depending on the repulsive force due to the kickback phenomenon of the elastic covering material of the puncture needle. Since deformation due to the cap portion does not occur, the cap portion of the vacuum blood collection tube does not move to the thick portion 4 due to the repulsive force due to the kickback phenomenon. Therefore, even if the vacuum blood collection tube due to the repulsive force due to the kickback phenomenon may move backward, the movement remains in the thin-walled portion, and the moving distance is very small as shown by the arrow in the figure. The case where the thick portion 4 is not deformed includes not only the case where the thick portion 4 is not deformed at all, but also the case where the vacuum blood collection tube is deformed within a range where it cannot move into the thick portion.

また本願発明の真空採血管ホルダーは上述のようにその保持力の問題を解決することができただけでなく、真空採血管の挿入性も併せて改善することができるという予想外の効果を奏することができた。すなわち、前記扁平面の壁部を一定肉厚としたものは、前記保持力を必要な範囲とするために少なくとも該真空採血管ホルダーの接続部側の内径と真空採血管挿入開口部側の内径をほぼ同じ程度にする必要があった。これに対して扁平面の壁部を上述のような要件を満足する薄肉部と厚肉部で形成した本願発明の真空採血管ホルダーは、開口部側の内径を接続部側の内径より大きくしても必要な保持力が得られるので、開口部側の内径を接続部側の内径より大きくすることにより真空採血管の挿入性を改善できる。さらに採血管挿入開口部側の内径を接続部側の内径より大きくできることは、該真空採血管ホルダーの成形性を改善できるという製造上のメリットも生じる。 Further, the vacuum blood collection tube holder of the present invention has an unexpected effect that not only the problem of the holding force as described above can be solved but also the insertion property of the vacuum blood collection tube can be improved. I was able to. That is, the flat flat wall portion has a constant thickness so that the holding force is within the required range, at least the inner diameter on the connection side of the vacuum blood collection tube holder and the inner diameter on the vacuum blood collection tube insertion opening side Needed to be about the same. In contrast, in the vacuum blood collection tube holder of the present invention in which the flat wall portion is formed of a thin portion and a thick portion satisfying the above-mentioned requirements, the inner diameter on the opening side is made larger than the inner diameter on the connection side. However, since the necessary holding force can be obtained, the insertion property of the vacuum blood collection tube can be improved by making the inner diameter on the opening side larger than the inner diameter on the connection side. Furthermore, the fact that the inner diameter on the blood collection tube insertion opening side can be made larger than the inner diameter on the connection side also has a manufacturing merit that the moldability of the vacuum blood collection tube holder can be improved.

前記薄肉部分は真空採血管のキャップの最大径より小さく、該部分に真空採血管のキャップが接触することにより外方向に拡径して変形して、かつ該変形の反発弾性によって真空採血管のキャップに保持力を付与することができる肉厚および長軸方向の長さである必要がある。また前記厚肉部は前記薄肉部分の外面側を厚肉化したものが好ましい。前記薄肉部分の内面側を厚肉化し薄肉部分と厚肉部を形成したものは真空採血管の真空採血管ホルダー内からの引出しをスムースに行うことができない。この厚肉部の長軸方向の長さは前記薄肉部分の長軸方向の長さに基づいて適宜決定することができ、また、厚肉部の肉厚は真空採血管ホルダー内に挿入される真空採血管のキックバック力に基づいて変形しないように適宜決定することができる。 The thin-walled portion is smaller than the maximum diameter of the cap of the vacuum blood collection tube, and when the cap of the vacuum blood collection tube comes into contact with the portion, the diameter of the vacuum blood collection tube expands outwardly and deforms. It is necessary to have a wall thickness and a length in the major axis direction that can impart a holding force to the cap. Further, the thick part is preferably a thickened outer surface side of the thin part. When the inner surface side of the thin portion is thickened to form a thin portion and a thick portion, the vacuum blood collection tube cannot be smoothly drawn out from the vacuum blood collection holder. The length of the thick part in the major axis direction can be determined as appropriate based on the length of the thin part in the major axis direction, and the thickness of the thick part is inserted into the vacuum blood collection tube holder. Based on the kickback force of the vacuum blood collection tube, it can be determined appropriately so as not to be deformed.

さらに前記厚肉部と薄肉部分の境界には例えば図１に示すように段差Ｂが形成されていることが好ましい。このような段差を設けることにより、変形した薄肉部分と厚肉部の間に変形時のみ生じるアンダーカット構造である変曲点が形成され前記薄肉部分に保持された真空採血管の薄肉部分より厚肉部分への移動をより困難とすることができ、キックバック力によって真空採血管は開口部側には移動せず、採血操作者が引抜き時にキックバック力より大きい引抜き力を加えた場合に開口部側に真空採血管を移動させることができる。これに対して真空採血管ホルダーの円筒状物の内壁面にあらかじめアンダーカット構造を形成したものは、円筒状物の製造に際してその成形が難しくなり、また、真空採血管ホルダーに真空採血管を挿入する際に大きな挿入力を必要とすることになる。なお、前記段部とは前記図１に示すよう段差Ｂのように直角形状に限定されるものではなく、真空採血管ホルダー内から真空採血管を引き抜く際に前記アンダーカット構造を形成できるものであればよい。 Further, it is preferable that a step B is formed at the boundary between the thick part and the thin part as shown in FIG. By providing such a step, an inflection point, which is an undercut structure that occurs only during deformation, is formed between the deformed thin part and the thick part and is thicker than the thin part of the vacuum blood collection tube held in the thin part. Movement to the meat part can be made more difficult, and the vacuum blood collection tube does not move to the opening side due to the kickback force, and it opens when the blood collection operator applies a pulling force greater than the kickback force during pulling The vacuum blood collection tube can be moved to the part side. On the other hand, when the undercut structure is formed in advance on the inner wall surface of the cylindrical object of the vacuum blood collection tube holder, it becomes difficult to mold the cylindrical object, and the vacuum blood collection tube is inserted into the vacuum blood collection tube holder. This requires a large insertion force. The stepped portion is not limited to a right-angled shape like the step B as shown in FIG. 1, but the undercut structure can be formed when the vacuum blood collection tube is pulled out from the vacuum blood collection tube holder. I just need it.

前記本発明の真空採血管ホルダーの構成を図に基づいて説明する。
図１は本発明の真空採血管ホルダーの基本構成を示す。合成樹脂で構成され、ネジ込み、溶着、融着あるいは接着等の結合手段で一体的に結合された筒状物１と採血針が接続されたチューブを連結可能な接続部６、および筒状物１内に挿入される採血管のキャップ部を穿刺する前記筒状物１内に突出した前記接続部６に保持された穿刺針８で構成される。 The configuration of the vacuum blood collection tube holder of the present invention will be described with reference to the drawings.
FIG. 1 shows the basic configuration of the vacuum blood collection tube holder of the present invention. A connecting part 6 made of a synthetic resin, which can be connected to a tube 1 connected to a blood collection needle and a cylindrical object 1 which are integrally connected by a connecting means such as screwing, welding, fusion or adhesion, and a cylindrical object 1 is constituted by a puncture needle 8 held by the connecting portion 6 protruding into the cylindrical object 1 for puncturing a cap portion of a blood collection tube to be inserted into the tube 1.

円筒状物１の壁部には長軸方向に対向した内壁面および外壁面とも扁平な２個の板状壁部が形成され、各板状壁部は接続部６側に形成された一定厚さの薄肉部３と該薄肉部３より厚肉の一定厚さの厚肉部４とで構成されている。ただし、前記板状壁部の数は２個に限られるものではなく、１個あるいは２個を超える数であってもよく、また２個を超える場合には各板状壁部は互いに対向したものが好ましい。前記筒状物１の板状壁部は接続部６側から真空採血管が挿入される開口部側に向かって順次に拡径した形状をしている。前記筒状物１の板状壁部以外の壁部外面には長軸方向に複数の筋状リブが形成されていることが好ましい。このような筋状リブを形成することにより、円筒状物１の構造強度を損なうことなく壁部の厚さを小さくすることが可能となり、合成樹脂の量を削減できるので本発明の真空採血管ホルダーのコスト低減につながるだけでなく、該真空採血管ホルダーの軽量化をはかることができる。 Two flat plate-like wall portions are formed on the wall portion of the cylindrical object 1 so that the inner wall surface and the outer wall surface opposed in the long axis direction are flat, and each plate-like wall portion is formed on the connection portion 6 side and has a constant thickness. The thin-walled portion 3 and the thick-walled portion 4 having a constant thickness that is thicker than the thin-walled portion 3. However, the number of the plate-like wall portions is not limited to two, and may be one or more than two. In the case of exceeding two, the plate-like wall portions face each other. Those are preferred. The plate-like wall portion of the cylindrical object 1 has a shape in which the diameter is sequentially increased from the connection portion 6 side toward the opening portion side into which the vacuum blood collection tube is inserted. It is preferable that a plurality of streak-like ribs are formed in the major axis direction on the outer surface of the wall portion other than the plate-like wall portion of the cylindrical object 1. By forming such streak-like ribs, it becomes possible to reduce the thickness of the wall without impairing the structural strength of the cylindrical object 1, and the amount of synthetic resin can be reduced. Not only can the cost of the holder be reduced, the weight of the vacuum blood collection tube holder can be reduced.

図５の真空採血管ホルダーは、真空採血管ホルダー内に真空採血管を挿入するに際して、真空採血管を過度に接続部側に進行させて真空採血管ホルダーや真空採血管のキャップの破損を防止するために、図１の真空採血管ホルダーにおいて扁平面以外の接続部側の内壁面には真空採血管の接続部方向への進行を停止するリブ１０が円周方向に渡って形成されている。前記リブ１０は円周方向に部分的に形成されたものであってもよい。 The vacuum blood collection tube holder shown in FIG. 5 prevents the vacuum blood collection tube holder and the cap of the vacuum blood collection tube from being damaged by excessively advancing the vacuum blood collection tube toward the connecting portion when inserting the vacuum blood collection tube into the vacuum blood collection tube holder. For this purpose, in the vacuum blood collection tube holder of FIG. 1, ribs 10 that stop progressing in the direction of the connection portion of the vacuum blood collection tube are formed in the circumferential direction on the inner wall surface on the connection portion side other than the flat surface. . The rib 10 may be partially formed in the circumferential direction.

図７の真空採血管ホルダーは、図１の真空採血管ホルダーにおいて前記リブに代えて真空採血管の接続部方向への進行を停止すために筒状物１の内部に接続部側から開口部側に向かって立設した真空採血管の接続部方向への進行を停止する棒状の立設部１１を形成したものである。前記棒状の立設部１１に代えて、あるいはこれに加えて接続部側から開口部側に向かって立設した環状の立設部を形成してもよい。 The vacuum blood collection tube holder in FIG. 7 has an opening from the connection portion side to the inside of the cylindrical object 1 in order to stop the progress of the vacuum blood collection tube in the direction of the connection portion instead of the rib in the vacuum blood collection tube holder in FIG. A bar-like standing portion 11 that stops the progress of the vacuum blood collection tube standing toward the side toward the connecting portion is formed. Instead of or in addition to the rod-like standing portion 11, an annular standing portion standing from the connecting portion side toward the opening portion side may be formed.

本発明により、簡単な構造で採血時のキックバック現象を抑制して真空採血管ホルダー内に真空採血管を安定に保持することができる真空採血管ホルダーを得ることができた。 According to the present invention, a vacuum blood collection tube holder capable of stably holding the vacuum blood collection tube in the vacuum blood collection tube holder by suppressing the kickback phenomenon during blood collection with a simple structure has been obtained.

採血時のキックバック現象を抑制した真空採血管ホルダー Vacuum blood collection tube holder that suppresses kickback phenomenon during blood collection

図１に示す真空採血管ホルダー１は、ポリプロピレン樹脂で形成され、かつ一体的に接合された対向した２個の板状構造を有する筒状物１と採血針あるいは採血針が接続されたチューブを連結可能な接続部６、および前記筒状物１内に挿入される採血管のキャップ部を穿刺する前記筒状物１内に突出した前記接続部６に保持されたゴム材料７で被覆された穿刺針８で構成され、前記筒状物１の内腔面は接続部６側から真空採血管が挿入される開口部側に向かって順次に拡径したテーパー形状をしている。そして該真空採血管ホルダー１は挿入される真空採血管の種類によって前記薄肉部３と厚肉部４の最適肉厚、およびテーパー形状は決定されるが、前記前記薄肉部３と厚肉部４の肉厚はポリプロピレン樹脂の場合、通常前者は０．４〜１．０ｍｍ程度、また後者は０．６〜１．４ｍｍ程度である。 A vacuum blood collection tube holder 1 shown in FIG. 1 is formed of a polypropylene resin, and a tube 1 having two plate-like structures opposed to each other and a blood collection needle or a tube to which a blood collection needle is connected is connected. The connecting portion 6 that can be connected and the rubber material 7 held by the connecting portion 6 projecting into the tubular body 1 that punctures the cap portion of the blood collection tube inserted into the tubular body 1 are covered. The puncture needle 8 is formed, and the inner surface of the tubular body 1 has a tapered shape in which the diameter is sequentially increased from the connection portion 6 side toward the opening portion side where the vacuum blood collection tube is inserted. In the vacuum blood collection tube holder 1, the optimum thickness and taper shape of the thin portion 3 and the thick portion 4 are determined depending on the type of vacuum blood collection tube to be inserted, but the thin portion 3 and the thick portion 4. In the case of polypropylene resin, the thickness is usually about 0.4 to 1.0 mm for the former and about 0.6 to 1.4 mm for the latter.

本発明の真空採血管ホルダーの基本的構成を示す断面図である。It is sectional drawing which shows the basic composition of the vacuum blood collection tube holder of this invention. 扁平面の壁部の厚さが一定厚である真空採血管ホルダーの断面図である。It is sectional drawing of the vacuum blood-collecting tube holder whose thickness of a flat plane wall part is constant thickness. 図１の真空採血管ホルダー内にフィルム状キャップを有する真空採血管が保持された場合における偏平面の薄肉壁部の変形状態を示す模式的断面図である。FIG. 2 is a schematic cross-sectional view showing a deformed state of a flat wall with a flat wall when a vacuum blood collection tube having a film-like cap is held in the vacuum blood collection tube holder of FIG. 1. 図２の真空採血管ホルダー内にフィルム状キャップを有する真空採血管が保持された場合における偏平面の薄肉壁部の変形状態を示す模式的断面図である。FIG. 3 is a schematic cross-sectional view showing a deformed state of a flat-walled thin wall portion when a vacuum blood collection tube having a film-like cap is held in the vacuum blood collection tube holder of FIG. 2. 真空採血管のリブ状の前進停止部１０を有する図１の真空採血管ホルダー内に真空採血管が保持された場合における偏平面の薄肉壁部の変形状態を示す模式的断面図である。It is typical sectional drawing which shows the deformation | transformation state of the thin wall part of a flat surface in the case where a vacuum blood collection tube is hold | maintained in the vacuum blood collection tube holder of FIG. 1 which has the rib-shaped advance stop part 10 of a vacuum blood collection tube. 図１の真空採血管ホルダー内に厚肉ゴム状キャップを有する真空採血管が保持された場合の薄肉壁部の変形状態を示す模式的断面図である。FIG. 2 is a schematic cross-sectional view showing a deformed state of a thin wall portion when a vacuum blood collection tube having a thick rubber-like cap is held in the vacuum blood collection tube holder of FIG. 1. 真空採血管の棒状の前進停止部１１を有する図１の真空採血管ホルダー内に厚肉ゴム状キャップを有する真空採血管が保持された場合の薄肉壁部の変形状態を示す模式的断面図である。FIG. 2 is a schematic cross-sectional view showing a deformed state of a thin wall portion when a vacuum blood collection tube having a thick rubber-like cap is held in the vacuum blood collection tube holder of FIG. 1 having a rod-like advance stop portion 11 of the vacuum blood collection tube. is there. 図１の真空採血管ホルダーの開口部側側面図である。It is an opening side side view of the vacuum blood collection tube holder of FIG.

符号の説明Explanation of symbols

１真空採血管の筒状物
１′ 真空採血管の筒状物
２真空採血管
３板状壁部の薄肉部
４板状壁部の厚肉部
５真空採血管のフィルム状キャップ
５′ 真空採血管の厚肉ゴム状キャップ
６採血針が接続されたチューブあるいは採血針を連結する接続部
７穿刺針の被覆材
８穿刺針
９真空採血管の一定厚さの壁部
１０リブ状部材
１１棒状立設部
１２開口部側の板状壁部の扁平な内壁面
１２′接続部側の板状壁部の扁平な内壁面
１３鍔部
１４環状立設部
Ａ板状壁部の薄肉壁部の変形距離
Ａ′ 一定厚の板状壁部の変形距離
Ｂ段差 DESCRIPTION OF SYMBOLS 1 Vacuum collection tube 1 'Vacuum collection tube 2 Vacuum collection tube 3 Thin-walled plate wall 4 Thick-walled plate wall 5 Vacuum-collected film cap 5' Vacuum collection A thick rubber cap 6 of a blood vessel A tube connected to a blood collection needle or a connection portion 7 for connecting the blood collection needle 7 A puncture needle covering material 8 A puncture needle 9 A wall portion 10 having a certain thickness of a vacuum blood collection tube 10 A rib-shaped member 11 A rod-like stand Installation portion 12 Flat inner wall surface 12 'of the plate-like wall portion on the opening portion side Flat inner wall surface 13 of the plate-like wall portion on the connection portion side ridge portion 14 Annular standing portion A Deformation of the thin wall portion of the plate-like wall portion Distance A 'Deformation distance B of stepped wall with constant thickness Step

Claims

真空採血管が挿入される開口部と該開口部とは反対側端部に採血針あるいは採血針が接続されたチューブを連結可能な接続部を有する真空採血管が挿入される円筒状物、および該円筒状物内に挿入される真空採血管のキャップ部を穿刺する弾性被覆材で被覆された穿刺針を少なくとも有して構成され、かつ下記（１）〜（３）の要件を満足することを特徴とする前記筒状物内に真空採血管を保持可能な真空採血管ホルダー。
（１）前記円筒状物の壁部内壁面の一部が長軸方向に形成された扁平面であること。
（２）前記扁平面の壁部は、接続部側は真空採血管のキャップ部が接触した場合には変形が生じる厚さ部分（以下、薄肉部分という）で構成され、また前記薄肉部分の開口部側は前記薄肉部分より厚肉で、かつ前記弾性被覆材のキックバック力によっては真空採血管のキャップ部による変形が生ぜず、したがって真空採血管のキックバックが生じない厚さ部分（以下、厚肉部分という）で構成されていること。
（３）前記厚肉部分と前記薄肉部分の肉厚差は扁平面の壁部の外面側に形成されていること。 A cylindrical object into which a vacuum blood collection tube is inserted, having an opening into which a vacuum blood collection tube is inserted, and a connection part to which a blood collection needle or a tube connected to the blood collection needle is connected to an end opposite to the opening ; and It is configured to have at least a puncture needle covered with an elastic coating material that punctures a cap portion of a vacuum blood collection tube inserted into the cylindrical object, and satisfies the following requirements (1) to (3) A vacuum blood collection tube holder capable of holding a vacuum blood collection tube in the cylindrical object.
(1) A part of the inner wall surface of the cylindrical portion is a flat surface formed in the long axis direction.
(2) wall of the flat surface, the thickness portion deformation occurs when the connecting portion side of the cap portion of the vacuum blood collection tube is in contact (hereinafter, thin-walled referred moiety) it consists of, also of the thin portion minutes The opening side is thicker than the thin-walled portion, and due to the kickback force of the elastic covering material, deformation due to the cap portion of the vacuum blood collection tube does not occur, and therefore the thickness portion (hereinafter referred to as the vacuum blood collection tube does not cause kickback) , it is composed of as thick portions min).
(3) the thickness difference between the thick portion fraction and the thin portion that is formed on the outer surface of the wall portion of the flat surface.

前記厚肉部分と前記薄肉部分の境界には段差が形成されている請求項１に記載の真空採血管ホルダー。 The thickness vacuum blood collection tube holder according to claim 1 step at the boundary wall portion component and the thin portion is formed.

前記接続部と真空採血管のキャップ部を保持する円筒状物がネジ込み、溶着、融着あるいは接着等の結合手段で一体的に結合されている請求項１または２に記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to claim 1 or 2, wherein the cylindrical portion holding the connection portion and the cap portion of the vacuum blood collection tube is integrally coupled by a coupling means such as screwing, welding, fusion, or adhesion. .

前記厚肉部分と前記薄肉部分の壁部はその外壁面も扁平面な板状構造である請求項１〜３のいずれかに記載の真空採血管ホルダー。 The thickness vacuum blood collection tube holder according to any one of claims 1 to 3 walls meat portions fraction and the thin portion is an outer wall surface is also a flat surface of a plate-like structure.

前記板状構造が円筒状物の長軸方向に対向して２個形成されている請求項４に記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to claim 4, wherein two plate-like structures are formed so as to face each other in the long axis direction of the cylindrical object.

円筒状物の内径は真空採血管が挿入される開口部側に向かって順次に拡径している請求項１〜５のいずれかに記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to any one of claims 1 to 5, wherein an inner diameter of the cylindrical object is sequentially increased toward an opening portion side into which the vacuum blood collection tube is inserted.

前記板状構造以外の壁部外壁面には長軸方向に複数の筋状リブが形成されている請求項４〜６のいずれかに記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to any one of claims 4 to 6, wherein a plurality of streak-like ribs are formed in a major axis direction on an outer wall surface of the wall portion other than the plate-like structure.

真空採血管の接続部方向への進行を停止する真空採血管の進行停止部が接続部側の扁平面以外の内壁面に形成されている請求項１〜７のいずれかに記載の真空採血管ホルダー。 The vacuum blood collection tube according to any one of claims 1 to 7, wherein a progress stop portion of the vacuum blood collection tube for stopping the progress of the vacuum blood collection tube toward the connection portion is formed on an inner wall surface other than the flat surface on the connection portion side. holder.

真空採血管の進行停止部が前記内壁面に形成されたリブである請求項８記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to claim 8, wherein the progress stop portion of the vacuum blood collection tube is a rib formed on the inner wall surface.

真空採血管の接続部方向への進行を停止する真空採血管の進行停止部が円筒状物の内部に接続部側から開口部側に向かって立設した立設部として形成されたものである請求項１〜７のいずれかに記載の真空採血管ホルダー。 The progress stop portion of the vacuum blood collection tube for stopping the progress of the vacuum blood collection tube in the direction of the connection portion is formed as an upright portion standing from the connection portion side toward the opening side inside the cylindrical object. The vacuum blood collection tube holder in any one of Claims 1-7.

採血針が接続されたチューブを前記接続部に連結した請求項１〜１０のいずれかに記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to any one of claims 1 to 10, wherein a tube to which a blood collection needle is connected is connected to the connection portion.

採血針が直接に前記接続部に連結された請求項１〜１０のいずれかに記載の真空採血管ホルダー。 The vacuum blood collection tube holder according to any one of claims 1 to 10, wherein a blood collection needle is directly coupled to the connection portion.