JP2544076Y2 - Medical plastic needle - Google Patents
Medical plastic needleInfo
- Publication number
- JP2544076Y2 JP2544076Y2 JP1990120442U JP12044290U JP2544076Y2 JP 2544076 Y2 JP2544076 Y2 JP 2544076Y2 JP 1990120442 U JP1990120442 U JP 1990120442U JP 12044290 U JP12044290 U JP 12044290U JP 2544076 Y2 JP2544076 Y2 JP 2544076Y2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- base
- needle tube
- puncture
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、輸液、輸血に使用される薬液容器、体外循
環回路の一部を構成し採血や補液に使用される混注部等
の医療用具に装着される栓体であって、細長のスリット
を形成することにより針を穿刺しやすくした栓体と該栓
体を装着した医療用具に使用されるプラスチック針の改
良に関するものである。[Detailed description of the invention] [Industrial application field] The invention is a medical device such as a medicinal solution container used for transfusion and blood transfusion, and a co-injection part which constitutes a part of an extracorporeal circulation circuit and is used for blood collection and replacement fluid. TECHNICAL FIELD The present invention relates to a plug which is attached to a medical device, and which is formed by forming an elongated slit so that a needle can be easily punctured, and a plastic needle used for a medical device equipped with the plug.
［従来技術及び従来技術の課題］ 現在使用されている医療用具の栓体は、天然ゴムや合
成ゴムから構成され、パッキンとして使用されている。[Prior Art and Problems of the Related Art] A plug of a medical device currently used is made of natural rubber or synthetic rubber and used as a packing.
この栓体には、例えば輸液、輸血セットの薬液導出用
の針を穿刺して薬液を患者に輸注している。これらの針
は、最近プラスチックのみにより構成されているものが
使用されるようになってきたが、針の先端形状の鋭利度
や径の大きさ如何により、栓体の陥没、薬液の漏出、針
の折れ、針から針カバーを取り外す時や使用後に針カバ
ーを被せる時に作業時の指の誤刺の発生等の事故が生じ
ることがあった。The stopper is punctured with, for example, a needle for deriving a drug solution from a transfusion or blood transfusion set to inject the drug solution into the patient. These needles have recently been used only of plastics. However, depending on the sharpness and the diameter of the tip of the needle, the plug may be depressed, the drug solution may leak, and the needle may be used. When the needle cover is removed from the needle or when the needle cover is put on after use, accidents such as the occurrence of erroneous sticking of the finger may occur.
この対策として、栓体に潤滑剤を含浸させる、針の先
端に潤滑剤を塗布する、針カバーの径を大きくする、金
属針をプラスチックへ切り替える等の工夫を行っていた
が、これらでも万全ではなく、なお事故を防ぐことはで
きなかった（混注部の栓体の場合も同様な課題が生じて
いた）。As countermeasures, the stopper was impregnated with lubricant, the tip of the needle was coated with a lubricant, the diameter of the needle cover was increased, and the metal needle was switched to plastic. However, the accident could not be prevented yet (the same problem occurred in the case of the plug in the co-injection section).
そこで本願出願人は、細長のスリットを形成すること
により針を穿刺しやすくした栓体と該栓体を装着した医
療用具を平成２年実用新案登録願第93029号（平成２年
９月４日付出願、実開平４−50048号）で提案した。そ
してさらに、本考案者は、前記栓体と該栓体を装着した
医療用具に適したプラスチック針について鋭意検討を重
ねた結果次の考案に到達した。Accordingly, the applicant of the present application has proposed a plug that facilitates puncture of a needle by forming an elongated slit and a medical device equipped with the plug, in Japanese Utility Model Registration Application No. 93029 (1990 Sep. 4, 1990). Application, Japanese Utility Model Application Laid-Open No. 4-50048). Further, the present inventors have made intensive studies on the plug and a plastic needle suitable for a medical device equipped with the plug, and as a result, have arrived at the following invention.
［課題を解決するための手段］ 実施例１ 第１図は本考案のプラスチック針１の概略図である。
プラスチック針１は、合成樹脂よりなり、把持部２と針
管３が針基８を介して一体に形成され、把持部２と針基
８の間に鍔部４が一体に形成されている。鍔部４は、略
半弧状に形成されている。[Means for Solving the Problems] Embodiment 1 FIG. 1 is a schematic view of a plastic needle 1 of the present invention.
The plastic needle 1 is made of a synthetic resin, and the grip portion 2 and the needle tube 3 are integrally formed via a needle base 8, and the flange portion 4 is integrally formed between the grip portion 2 and the needle base 8. The flange 4 is formed in a substantially semi-arc shape.
前記針管３の先端の穿刺部５の形状は直角錐台状に形
成され、前記針管３の外周は直角柱状に形成され、該針
管３の前方側部にはテーパー面７が形成されている。The shape of the puncture portion 5 at the tip of the needle tube 3 is formed in a truncated right pyramid shape, the outer periphery of the needle tube 3 is formed in a right prism shape, and a tapered surface 7 is formed on the front side of the needle tube 3.
また前記針管３の先端には薬液等の液体を出し入れす
るための孔６が形成されている。At the tip of the needle tube 3, there is formed a hole 6 for taking in and out a liquid such as a drug solution.
針管３の外周の長径Ｌは中腹部（ｍ）、前方部
（ｆ）、先端部（ｈ）で同じに形成されているが、短径
（ｓ）は中腹部（ｍ）＞前方部（ｆ）＞先端部（ｈ）の
順で小さく形成されている。The major axis L of the outer circumference of the needle tube 3 is formed in the middle part (m), the front part (f), and the tip part (h), but the minor diameter (s) is the middle part (m)> the front part (f). )> The tip portion (h) is formed smaller in this order.
以上のように針管３を形成することにより細長のスリ
ットを形成した栓体に穿刺する際に短径（ｓ）を最小に
形成した先端部（ｈ）がスムーズにスリットに入り、続
いて前方部（ｆ）を経て中腹部（ｍ）を細長のスリット
を形成した栓体の壁面に密着させることができる。この
状態で血液、薬液等の液体の出し入れを栓体を経て医療
用具に行うことができる。When the needle tube 3 is formed as described above, the tip end (h) having the shortest diameter (s) minimized when piercing the stopper body having the elongated slit formed therein, and smoothly enters the slit, and then the front part. Through (f), the mid-abdomen (m) can be brought into close contact with the wall surface of the plug having the elongated slit. In this state, a liquid such as blood or a drug solution can be taken in and out of the medical device via the plug.
以下実施例２以下のプラスチック針において、プラス
チック針１と同一の構成部材についてはプラスチック針
１の符合をそのまま使用する。Hereinafter, in the plastic needles of the second embodiment and the following, the same reference numerals as those of the plastic needle 1 are used for the same constituent members.
実施例２ 第２図は本考案のプラスチック針11の概略図である。
プラスチック針11は、合成樹脂よりなり、把持部12と針
管13が針基18を介して一体に形成され、把持部12と針基
18の間に鍔部14が一体に形成されている。鍔部14は、略
半弧状に形成されている。プラスチック針11の針管13の
先端の穿刺部15の形状は、半球冠状に形成されている。Embodiment 2 FIG. 2 is a schematic view of the plastic needle 11 of the present invention.
The plastic needle 11 is made of a synthetic resin, and a grip portion 12 and a needle tube 13 are integrally formed through a needle base 18, and the grip portion 12 and the needle base are formed.
The flange 14 is formed integrally between the 18. The flange portion 14 is formed in a substantially semi-arc shape. The shape of the puncture portion 15 at the tip of the needle tube 13 of the plastic needle 11 is formed in a hemispherical crown shape.
前記針管13の外周は直角錐台状に形成されている。 The outer circumference of the needle tube 13 is formed in a truncated right pyramid shape.
針管13の外周の短径（ｓ）は中腹部（ｍ）、先端部
（ｈ）で同じであるが、 長径Ｌは、中腹部（ｍ）と先端部（ｈ）の基部は同一
に形成し、先端部（ｈ）の基部から最先端部へ向けて小
さく形成されている。The minor diameter (s) of the outer circumference of the needle tube 13 is the same at the middle part (m) and the tip part (h), but the major diameter L is the same at the base part of the middle part (m) and the tip part (h). , From the base of the tip (h) to the tip.
以上のように針管13を形成することにより細長のスリ
ットを形成した栓体に穿刺する際に長径Ｌを最小にした
先端部（ｈ）の最先端部がスムーズにスリットに入り続
いて先端部（ｈ）の基部を経て、中腹部（ｍ）を細長の
スリットを形成した栓体の壁面に密着させることができ
る。When the needle tube 13 is formed as described above, the tip of the tip (h) with the longest diameter L minimized when piercing the plug body having the elongated slit formed therein smoothly enters the slit and continues to the tip ( Through the base of h), the middle abdomen (m) can be brought into close contact with the wall surface of the plug body having the elongated slit.
実施例３ 第３図は本考案のプラスチック針21の概略図である。
プラスチック針21は、合成樹脂よりなり、把持部22と針
管23が針基28を介して一体に形成され、把持部22と針基
28の間に鍔部24が一体に形成されている。鍔部24は、略
半弧状に形成されている。プラスチック針21の針管23の
先端の穿刺部25は、球帯状に形成されて、前記針管23の
外周は直円錐台状に形成されている。Embodiment 3 FIG. 3 is a schematic view of the plastic needle 21 of the present invention.
The plastic needle 21 is made of a synthetic resin, and the grip portion 22 and the needle tube 23 are integrally formed through a needle base 28, and the grip portion 22 and the needle base are formed.
Between the flanges 28, a flange 24 is integrally formed. The flange 24 is formed in a substantially semi-arc shape. The puncture part 25 at the tip of the needle tube 23 of the plastic needle 21 is formed in a spherical band shape, and the outer periphery of the needle tube 23 is formed in a right circular truncated cone shape.
針管23の外周の外径（Ｒ）は、中腹部（ｍ）の基部か
ら前方に向けて順次小さく形成され、さらに中腹部
（ｍ）と前方部と先端部（ｈ）の基部は同一に形成され
先端部（ｈ）の基部から最先端部へ向けて小さく形成さ
れている。The outer diameter (R) of the outer circumference of the needle tube 23 is gradually reduced from the base of the middle part (m) toward the front, and the middle part of the middle part (m), the front part and the base part (h) are formed identically. It is formed smaller from the base of the tip (h) to the tip.
以上のように針管23を形成することにより細長のスリ
ットを形成した栓体に穿刺する際に、外径（Ｒ）を最小
に形成した先端部（ｈ）の最先端部がスムーズにスリッ
トに入り、続いて先端部（ｈ）の基部、中腹部（ｍ）の
前方部を経て、中腹部（ｍ）の基部を細長のスリットを
形成した栓体の壁面に密着させることができる。As described above, when the needle tube 23 is formed to puncture a plug having an elongated slit, the tip end (h) having the smallest outer diameter (R) smoothly enters the slit. Subsequently, the base of the middle abdomen (m) can be brought into close contact with the wall surface of the plug having the elongated slit through the base of the tip (h) and the front of the middle abdomen (m).
実施例４ 第４図は本考案のプラスチック針31の概略図である。
プラスチック針31は、合成樹脂よりなり、把持部32と針
管33が針基38を介して一体に形成され、把持部32と針基
38の間に鍔部34が一体に形成されている。鍔部34は、略
半弧状に形成されている。プラスチック針31の針管33の
先端の穿刺部35の形状は、球冠状に形成されている。Embodiment 4 FIG. 4 is a schematic view of the plastic needle 31 of the present invention.
The plastic needle 31 is made of a synthetic resin, and the grip portion 32 and the needle tube 33 are integrally formed via a needle base 38, and the grip portion 32 and the needle base are formed.
A flange 34 is formed integrally between the 38. The flange 34 is formed in a substantially semi-arc shape. The shape of the puncture portion 35 at the tip of the needle tube 33 of the plastic needle 31 is formed in a spherical crown shape.
前記針管33の外周は直円錐台状に形成されている。 The outer periphery of the needle tube 33 is formed in a right truncated cone shape.
また、針管33の外周前方側部には孔36が形成されてい
る。In addition, a hole 36 is formed in the outer peripheral front side portion of the needle tube 33.
針31は針管33の先端の穿刺部35の形状を球冠状として
針管33の先端付近の側部に孔36を形成した以外のその他
の形状、使用方法は針21と実質的に同じであるから詳細
な説明は省略する。Needle 31 has the same shape as needle 21 except for the shape of puncture portion 35 at the tip of needle tube 33 and a hole 36 formed at the side near the tip of needle tube 33 as the shape of a crown, and the method of use is substantially the same as needle 21. Detailed description is omitted.
［考案の効果］ 以上説明したように本考案は、針管の穿刺部が非鋭利
な形状に形成され、針管の外周面の径が基部から先端部
に向けて順次小さく形成されているので栓体の細長のス
リットに穿刺しやすくかつ栓体の壁面に密着しやすい形
状になっている。このため栓体の陥没、薬液の漏出、針
の折れ、針から針カバーを取り外す時や使用後に針カバ
ーを被せる時に作業者の指の誤刺の発生等の事故を皆無
にすることができる。[Effects of the Invention] As described above, in the present invention, the puncture portion of the needle tube is formed in a non-sharp shape, and the diameter of the outer peripheral surface of the needle tube is gradually reduced from the base portion to the tip portion. The shape is such that it is easy to puncture the slender slit and to easily adhere to the wall surface of the plug. For this reason, it is possible to completely eliminate accidents such as depression of the plug, leakage of the drug solution, breakage of the needle, and occurrence of erroneous sticking of the operator's finger when removing the needle cover from the needle or putting the needle cover on after use.
第１図から第４図は本願考案のプラスチック針の各実施
例を示す概略図である。 図中、１、11、21、31はプラスチック針、２、12、22、
32は把持部、３、13、23、33は針管、５、15、25、35は
穿刺部、６、16、26、36は孔である。1 to 4 are schematic views showing embodiments of the plastic needle of the present invention. In the figure, 1, 11, 21, 31 are plastic needles, 2, 12, 22,
32 is a gripping part, 3, 13, 23 and 33 are needle tubes, 5, 15, 25 and 35 are puncturing parts, and 6, 16, 26 and 36 are holes.
Claims (4)
穿刺しやすくした栓体を装着した医療用具に使用される
医療用プラスチック針であって、 把持部２と針管３が針基８を介して一体に形成され、把
持部２と針基８の間に鍔部４が一体に形成され、 針管３の先端の穿刺部５の形状は直角錐台状に形成さ
れ、 針管３の外周は直角柱状に形成され、 針管３の外周前方側部にはテーパー面７が形成され、 針管３の先端の穿刺部５には孔６が形成され、 針管３の外周の短径Ｓを 中腹部（ｍ）＞前方部（ｆ）＞先端部（ｈ）の順で小さ
く形成した、ことを特徴とする医療用プラスチック針
１。1. A medical plastic needle for use in a medical device equipped with a stopper which facilitates puncture of a needle by forming a small-diameter slit, wherein a grip portion 2 and a needle tube 3 form a needle base 8. The flange 4 is integrally formed between the gripping portion 2 and the needle base 8. The shape of the puncture portion 5 at the tip of the needle tube 3 is formed in a truncated right pyramid shape. The needle tube 3 has a tapered surface 7 formed on the outer front side thereof, a puncture portion 5 at the distal end thereof has a hole 6 formed therein, and the minor diameter S of the outer periphery of the needle tube 3 is set in the middle abdomen ( m)> a front portion (f)> a tip portion (h), the medical plastic needle 1 being formed smaller in this order.
穿刺しやすくした栓体を装着した医療用具に使用される
医療用プラスチック針であって、 把持部12と針管13が針基18を介して一体に形成され、把
持部12と針基18の間に鍔部14が一体に形成され、 針管13の先端の穿刺部15の形状は半球冠状に形成され、 針管13の外周は直角錐台状に形成され、 針管13の先端の穿刺部15には孔16が形成され、 針管13の外周の長径Ｌを 中腹部（ｍ）と先端部（ｈ）の基部は同一に形成しかつ
先端部（ｈ）の基部から最先端部へ向けて小さく形成し
た、ことを特徴とする医療用プラスチック針11。2. A medical plastic needle used for a medical device equipped with a stopper body which facilitates puncture of a needle by forming a small-diameter slit, wherein a grasping part 12 and a needle tube 13 form a needle base 18. The collar portion 14 is integrally formed between the grip portion 12 and the needle base 18, the puncture portion 15 at the tip of the needle tube 13 is formed in a hemispherical crown shape, and the outer periphery of the needle tube 13 is a right pyramid. A hole 16 is formed in the puncture portion 15 at the distal end of the needle tube 13, and the long diameter L of the outer periphery of the needle tube 13 is formed so that the middle portion of the middle portion (m) and the base portion of the distal portion (h) are formed to be the same. A medical plastic needle 11 which is formed smaller from the base of the portion (h) toward the foremost portion.
穿刺しやすくした栓体を装着した医療用具に使用される
医療用プラスチック針であって、 把持部22と針管23が針基28を介して一体に形成され、把
持部22と針基28の間に鍔部24が一体に形成され、 針管23の穿刺部25の形状は球帯状に形成され、 針管23の外周は直円錐台状に形成され、 針管23の先端の穿刺部25には孔26が形成され、 針管23の外周の外径（Ｒ）を、中腹部（ｍ）の基部から
前方に向けて順次小さく形成し、中腹部（ｍ）の前方部
と先端部（ｈ）の基部で同一に形成し、先端部（ｈ）の
基部から最先端部に向けて小さく形成した、ことを特徴
とする医療用プラスチック針21。3. A medical plastic needle for use in a medical device equipped with a stopper which facilitates puncture of a needle by forming a small-diameter slit, wherein a grip portion 22 and a needle tube 23 form a needle base 28. The collar portion 24 is integrally formed between the grip portion 22 and the needle base 28, the puncture portion 25 of the needle tube 23 is formed in a spherical band shape, and the outer periphery of the needle tube 23 is shaped like a truncated cone. A hole 26 is formed in the puncture portion 25 at the distal end of the needle tube 23. The outer diameter (R) of the outer periphery of the needle tube 23 is gradually reduced from the base of the mid-abdomen (m) toward the front. A medical plastic needle 21 which is formed identically at the front part of the abdomen (m) and at the base of the tip part (h), and is formed smaller from the base part of the tip part (h) toward the tip part.
穿刺しやすくした栓体を装着した医療用具に使用される
医療用プラスチック針であって、 把持部32と針管33が針基38を介して一体に形成され、把
持部32と針基38の間に鍔部34が一体に形成され、 針管33の穿刺部35の形状は球冠状に形成され、 針管33の外周は直円錐台状に形成され、 針管33の外周前方側部には孔36が形成され、 針管33の外周の外径（Ｒ）を、中腹部（ｍ）の基部から
前方に向けて順次小さく形成し、中腹部（ｍ）の前方部
と先端部（ｈ）の基部で同一に形成し、先端部（ｈ）の
基部から最先端部に向けて小さく形成した、ことを特徴
とする医療用プラスチック針31。4. A medical plastic needle for use in a medical device equipped with a stopper which facilitates puncture of a needle by forming a small-diameter slit, wherein a grip portion 32 and a needle tube 33 form a needle base 38. The flange portion 34 is integrally formed between the grip portion 32 and the needle base 38, the puncture portion 35 of the needle tube 33 is formed in a spherical crown shape, and the outer periphery of the needle tube 33 is shaped like a truncated cone. A hole 36 is formed on the outer peripheral front side of the needle tube 33. The outer diameter (R) of the outer periphery of the needle tube 33 is gradually reduced from the base of the mid-abdomen (m) toward the front, and (M) The medical plastic needle 31 is formed in the same manner at the front part and the base part of the tip part (h), and is formed smaller from the base part of the tip part (h) toward the tip part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990120442U JP2544076Y2 (en) | 1990-11-17 | 1990-11-17 | Medical plastic needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990120442U JP2544076Y2 (en) | 1990-11-17 | 1990-11-17 | Medical plastic needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0477947U JPH0477947U (en) | 1992-07-07 |
| JP2544076Y2 true JP2544076Y2 (en) | 1997-08-13 |
Family
ID=31868347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990120442U Expired - Lifetime JP2544076Y2 (en) | 1990-11-17 | 1990-11-17 | Medical plastic needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2544076Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004057678A (en) * | 2002-07-31 | 2004-02-26 | Hanshin Kasei Kogyo Kk | Resin needle setting structure of transfusion container |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61127745U (en) * | 1985-01-22 | 1986-08-11 | ||
| JPS6227615U (en) * | 1985-08-05 | 1987-02-19 | ||
| JPS63160848U (en) * | 1987-04-07 | 1988-10-20 |
-
1990
- 1990-11-17 JP JP1990120442U patent/JP2544076Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0477947U (en) | 1992-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2604240Y2 (en) | Medical equipment | |
| US4886503A (en) | Disposable covered needle for syringe | |
| US5222948A (en) | Injection port for single-use syringe | |
| US5242422A (en) | One piece molded syringe with tethered cap | |
| US5630803A (en) | Safety cap assembly for needles | |
| US4769003A (en) | Wound irrigation splashback shield | |
| JP2001513655A (en) | Safety tube coupling system | |
| US20070078429A1 (en) | Safety fluid transfer cannula | |
| JPH10508232A (en) | Plastic syringe with overcap | |
| JP2000084079A (en) | Manufacture of safe shield assembly and needle assembly | |
| JPH0156784B2 (en) | ||
| JPH04272757A (en) | Administering bottle with sleeve | |
| JPH04502714A (en) | Improved slip cap for use with cannulae | |
| JP2544076Y2 (en) | Medical plastic needle | |
| JPH05505953A (en) | Applicator with two cannulas | |
| US3890972A (en) | Syringe injector with pop-top cap | |
| JP3668293B2 (en) | Injection container | |
| JP4098593B2 (en) | Container / Syringe | |
| JP3011343U (en) | Infusion tap | |
| GB2272895A (en) | Withdrawing drugs from containers using cannulae | |
| CA1189412A (en) | Apparatus for injection | |
| JP2531197Y2 (en) | Medical device plug and medical device | |
| CN221105990U (en) | Novel bone traction needle protection device | |
| JPH0325791Y2 (en) | ||
| GB2283918A (en) | Gas-propelled trocar needle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |