JPH0390159A - Medical treatment needle - Google Patents
Medical treatment needleInfo
- Publication number
- JPH0390159A JPH0390159A JP1226550A JP22655089A JPH0390159A JP H0390159 A JPH0390159 A JP H0390159A JP 1226550 A JP1226550 A JP 1226550A JP 22655089 A JP22655089 A JP 22655089A JP H0390159 A JPH0390159 A JP H0390159A
- Authority
- JP
- Japan
- Prior art keywords
- needle
- cap
- base
- fitting
- needle cap
- 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.)
- Granted
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 20
- 230000001070 adhesive effect Effects 0.000 claims abstract description 17
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000009832 plasma treatment Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000036512 infertility Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004590 silicone sealant Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は、血液バッグ、薬液バッグ等の医療用バッグに
装着されて使用される医療用針に関するらのであり、特
に、医療用針として無菌性を維持するのに必要な針キャ
ップと針基の密着性を有し、また使用に際し作業者が容
易に針キャップを取り外し易い針キャップと針基の嵌合
強度を有する医療用針である。Detailed Description of the Invention [Industrial Application Field 1] The present invention relates to a medical needle that is used by being attached to a medical bag such as a blood bag or a drug solution bag. This medical needle has the adhesion between the needle cap and the needle base necessary to maintain the properties of the needle, and also has the strength of the fit between the needle cap and the needle base so that an operator can easily remove the needle cap during use.
［従来の技術及び従来技術の課題］
第３図は、現在使用されている医療用針１１の概略図を
示す、医療用針１１は、針キャップ１２と金属性の針管
１９を植設した針基１３から構成される。[Prior art and problems with the prior art] FIG. 3 shows a schematic diagram of a currently used medical needle 11. The medical needle 11 is a needle in which a needle cap 12 and a metal needle tube 19 are implanted. It is composed of groups 13.
針キャップ１２の内側には、テーパー状の溝部１５が形
成され、針基１３には前記溝部１５と嵌合されるテーパ
ー状の段部１８が形成されている。これらの医療針１１
の組み立てに際しては、計キャップ１２の溝部１５ど針
基１３の段部１８の間にシリコーンシール剤等の接着剤
を充填し、これらのシリコーンシール剤の接着強度と嵌
合トルクにより、針キャップ１２と針基１３のネジリモ
ーメントを保持しているものである。A tapered groove 15 is formed inside the needle cap 12, and a tapered step 18 that fits into the groove 15 is formed in the needle base 13. These medical needles 11
When assembling the needle cap 12, an adhesive such as a silicone sealant is filled between the groove 15 of the meter cap 12 and the step 18 of the needle base 13. This maintains the torsional moment of the needle base 13.
しかしながら、これらの医療用針１１は、組み立てに際
し、接着剤の充填量の調整が難しく充填量の多少により
計キャップ１２と針基１３の嵌合が強くなったり弱くな
ったりして製品の各ロフトごとのバラツキが多かった。However, when assembling these medical needles 11, it is difficult to adjust the amount of adhesive filled. There was a lot of variation.
また、充填量が多いと針キャップ１２が取り外しにくく
、少ないと無菌性が維持できなかった。Moreover, if the filling amount was large, it was difficult to remove the needle cap 12, and if the filling amount was small, sterility could not be maintained.
さらに、充填量を多くすると接着剤が計キャップ１２と
針基１３の嵌合部外表面にはみ出し、外賎上このましい
ちのではなかった。Furthermore, when the filling amount was increased, the adhesive overflowed to the outer surface of the fitting portion between the meter cap 12 and the needle base 13, and was not present on the outer surface.
また針キャップ１２と針基１３の嵌合はテーパー面によ
る嵌合であるから、勘合するときの接着力が弱いため、
針基１３との接着力を向上させるために、針キャップ１
２の構成材料に接着性樹脂を混合して成形していた。In addition, since the needle cap 12 and needle base 13 are fitted by tapered surfaces, the adhesive force when fitting is weak.
In order to improve the adhesive force with the needle base 13, the needle cap 1
It was molded by mixing adhesive resin with the constituent material of No. 2.
このため、針キャップ１２の構成材料がブレンド品にな
るため、コスト高になるばかりか、所定の定められた形
状に成形することが難しく変形し易かった。特に針基と
の嵌合面に歪が生じると針基との嵌合が不安定となり、
接着強度が安定しないという欠点があった。For this reason, the constituent material of the needle cap 12 is a blended product, which not only increases the cost but also makes it difficult to mold into a predetermined shape and easily deforms. In particular, if distortion occurs on the surface that fits with the needle base, the fit with the needle base will become unstable.
The drawback was that the adhesive strength was not stable.
そこで、以上の課題を解決するために本願発明の発明者
らは鋭意検討を重ねた結果、次の発明に到達した。Therefore, in order to solve the above problems, the inventors of the present invention have made extensive studies and have arrived at the following invention.
［！１題を解決するための手段〕
すなわち１本願発明は、
針キャップ２と針管９を植設した針基３からなる医療用
針ｌにおいて、前記針キャップ２はプラズマ処理されか
つ第一の嵌合溝４とテーパー状に形成された第二の嵌合
溝５を有し、前記針基３は、第一の段部７とテーパー状
に形成された第二の段部８を有し、
前記第二の嵌合溝５の最大内径ｒ、と前記第二の段部８
の最大外径ｒ、がｒ２ ＞ ｒ ＋に設定され、前記第
二の嵌合溝５の内周面と前記第二の段部８の外周面に接
着剤を充填して、針キャップ２と針基３を嵌合してなる
医療用針を提供するものである。[! Means for Solving Problem 1] That is, 1 the present invention provides a medical needle 1 consisting of a needle cap 2 and a needle base 3 in which a needle tube 9 is implanted, in which the needle cap 2 is plasma treated and a first fitting The needle base 3 has a groove 4 and a second fitting groove 5 formed in a tapered shape, and the needle base 3 has a first step 7 and a second step 8 formed in a tapered shape. The maximum inner diameter r of the second fitting groove 5 and the second step 8
The maximum outer diameter r of A medical needle having a needle hub 3 fitted thereto is provided.
［作用］
針キャップ２と針基３の嵌合面の接着強度が接着剤とプ
ラズマ処理により改質された表面により保持されている
ので、無菌性を保持しかり計キャップ２を適当に取り外
し易い嵌合強度に維持することができる。[Function] Since the adhesive strength of the fitting surfaces of the needle cap 2 and needle base 3 is maintained by the adhesive and the surface modified by plasma treatment, sterility is maintained and the fitting allows the meter cap 2 to be easily removed. can be maintained at the same strength.
【実施例］
第１図は５本発明の医療用針ｌを組み立てる以前の針キ
ャップ２と針基３を分解したところの概略図、第２図は
医療用針１を組み立てたと概略図である。[Example] Fig. 1 is a schematic diagram of the disassembled needle cap 2 and needle base 3 before assembling the medical needle 1 of the present invention, and Fig. 2 is a schematic diagram of the medical needle 1 assembled. .
医療用針１は、例えばポリプロピレン等の合成樹脂より
なる針キャップ２と金属性の針管９を植設しかつポリ塩
化ビニル等の合成樹脂よりなる針基３より構成される。The medical needle 1 includes a needle cap 2 made of a synthetic resin such as polypropylene, a needle tube 9 made of metal, and a needle base 3 made of a synthetic resin such as polyvinyl chloride.
計キャップ２は、第一の溝部４と第二の溝部５が内側に
形成され、第二の溝部５はテーパー状に形成され、該第
二の溝部５の最大内径ｒ。The meter cap 2 has a first groove 4 and a second groove 5 formed inside, the second groove 5 being tapered, and the second groove 5 having a maximum inner diameter r.
は、４．ＯＯｍｍ（許容範囲は−０，１５ｍｍから＋１
．ＯＯｍｍ）に設定されている。4. OOmm (tolerance range is -0,15mm to +1
．． OOmm).
さらに、前記第一の溝部４付近と対応する基端部６は鍔
状に形成されており、基端部６の開口の径ｒ、は、６．
０±１．０間の範囲に設定される。Further, the base end 6 corresponding to the vicinity of the first groove 4 is formed into a brim shape, and the diameter r of the opening of the base end 6 is 6.
It is set to a range between 0±1.0.
針基３は、先端に第一の段部７と第二の段部８が形成さ
れ、第二の段部８は、テーパー状に形成され、該第二の
段部８の最大外径ｒ、は、４．００±０．０５ｍｍの範
囲に設定される。The needle base 3 has a first step 7 and a second step 8 formed at its tip, and the second step 8 is formed in a tapered shape, and the maximum outer diameter r of the second step 8 is , are set in the range of 4.00±0.05 mm.
前記第二の溝部５の最大内径ｒ２と第二の段部８の最大
外径ｒＩの大きさは、ｒ ｚ ＞ ｒ＋となるように設
定されている。The maximum inner diameter r2 of the second groove portion 5 and the maximum outer diameter rI of the second step portion 8 are set so that r z > r+.
次に１本発明の医療用針１の組み立て方法について説明
する。Next, a method of assembling the medical needle 1 of the present invention will be explained.
（ａ）針キャップ２のプラズマ処理
針キャップ２をプラズマ処理装置内に置いた後、酸素ガ
スを流量３００３ＣＣＭで流入しながら、４００＋ｕ＋
Ｔｏｒｒの圧力条件下で、３００Ｗの電力を印加して、
２分間プラズマ処理を行った。(a) Plasma treatment of needle cap 2 After placing the needle cap 2 in the plasma processing apparatus, while oxygen gas is flowing in at a flow rate of 3003 CCM, 400+u+
Applying 300W of power under Torr pressure conditions,
Plasma treatment was performed for 2 minutes.
（ｂ）組み立て
プラズマ処理した針キャップ２と針基３の嵌合面の間、
すなわち、計キャップ２の第二の満部５と針基３の第二
の段部８の間に所定量の例えばシリコーンシール剤等の
接着剤を充填し、針キャップ２の第一の溝部４、第二の
溝部５と針基の第一の段部７、第二の段部８を嵌合させ
る。(b) between the assembled and plasma-treated needle cap 2 and the fitting surface of the needle base 3;
That is, a predetermined amount of adhesive such as a silicone sealant is filled between the second full part 5 of the meter cap 2 and the second stepped part 8 of the needle base 3, and the first groove part 4 of the needle cap 2 is , the second groove 5 is fitted into the first step 7 and second step 8 of the needle base.
計キャップ２の第二の溝部５の最大内径ｒ８は、針基３
の第二の段部８の最大外径ｒ１より大きく設定されてい
るので、針キャップ２の第二の溝部５と針基３の第二の
段部８の嵌合面の間に空間が形成され、この空間内に接
着剤が充填されることになり、該接着剤の接着力で、針
基２と計キャップ３のネジリモーメントを保持すること
になる。The maximum inner diameter r8 of the second groove portion 5 of the meter cap 2 is the same as that of the needle base 3.
Since the diameter is set larger than the maximum outer diameter r1 of the second step 8 of the needle cap 2, a space is formed between the fitting surface of the second groove 5 of the needle cap 2 and the second step 8 of the needle base 3. This space is filled with an adhesive, and the torsional moment between the needle base 2 and the meter cap 3 is maintained by the adhesive force of the adhesive.
また、前記空間内に、充填された接着剤は、針キャップ
２の第一の溝部４と針基３の第一の段部７により形成さ
れた嵌合面より外部への流失を阻止されるので５針キヤ
ツプ２と針基３の嵌合部外表面に、突出することがない
。Further, the adhesive filled in the space is prevented from flowing out to the outside through the fitting surface formed by the first groove 4 of the needle cap 2 and the first step 7 of the needle base 3. Therefore, there is no protrusion on the outer surface of the fitting part between the five-needle cap 2 and needle base 3.
以上のようにして組み立てた医療用針１を。Medical needle 1 assembled as described above.
オートクレーブ滅菌して、ねじり強度試験と嵌合部のリ
ークテストを行った。その結果を表にしめす。After sterilization in an autoclave, a torsion strength test and a leak test at the fitting part were performed. The results are shown in the table.
表の結果より、本発明の実施例は、
■針キャップ２と針基３のねじり強度を、無菌性を維持
するのに必要な針キャップ２と針基３の密着性を有しか
つ使用に際し作業者が容易に針キャップ２を取り外し易
い針キャップ２と針基３の嵌合強度を保持するのに最も
適当と考えられる５００±５０ｇ’ｃｍの範囲内に、バ
ラツキなく設定できることがわかる。From the results in the table, the embodiment of the present invention has the following characteristics: (1) The torsional strength of the needle cap 2 and needle base 3 is such that the adhesion between the needle cap 2 and needle base 3 necessary to maintain sterility is maintained, and the torsional strength of the needle cap 2 and needle base 3 is It can be seen that it can be set without variation within the range of 500±50 g'cm, which is considered to be the most appropriate for maintaining the strength of the fit between the needle cap 2 and the needle base 3 so that the operator can easily remove the needle cap 2.
■嵌合部からのリークが皆無で、液密性を充分に維持す
ることができることら確認できた。■It was confirmed that there was no leakage from the fitting part and that liquid tightness could be maintained sufficiently.
（以下余白）
表
注）
実施例１〜３は、本発明の医療用針ｌで、針キャップ１
２にプラズマ処理を施したもの。(Margin below) Table note) Examples 1 to 3 are the medical needles 1 of the present invention, and the needle cap 1.
2 with plasma treatment.
比較例１は従来の医療用針１１゜
比較例２は従来の医療用針１１で、針キャップ１２にプ
ラズマ処理を施したちの。Comparative Example 1 is a conventional medical needle 11°. Comparative Example 2 is a conventional medical needle 11 in which the needle cap 12 is subjected to plasma treatment.
比較例３は本発明の医療用針ｌで、針キャップ１２にプ
ラズマ処理を施していないもの。Comparative Example 3 is a medical needle 1 of the present invention in which the needle cap 12 is not subjected to plasma treatment.
【発明の効果］
以上説明したように本発明は、針キャップ２と針基３の
形状に工夫をこらし、計キャップ２をプラズマ処理して
構成材料の改質を行い、しかる後に５針キヤツプ２と針
基３の嵌合面に接着、剤を充填したちのであるから、接
着剤とプラズマ処理により改質された表面により、無菌
性を維持するのに必要な針キャップ２と針基３の密着性
を有しかつ使用に際し作業者が容易に針キャップ２を取
り外し易い針キャップ２と針基３の嵌合強度を保持する
ことができる。Effects of the Invention As explained above, the present invention devises the shapes of the needle cap 2 and the needle base 3, performs plasma treatment on the meter cap 2 to modify the constituent materials, and then Since the mating surfaces of the needle cap 2 and the needle base 3 are filled with adhesive and an agent, the surface modified by the adhesive and plasma treatment allows the needle cap 2 and the needle base 3 to maintain sterility. It is possible to maintain the fitting strength between the needle cap 2 and the needle base 3, which have adhesion and allow the operator to easily remove the needle cap 2 during use.
さらに、均一な形状に成形した計キャップ２を使用して
いるので品質の安定した製品を供給できる。Furthermore, since the meter cap 2 is molded into a uniform shape, a product of stable quality can be supplied.
等の効果を有する優れた発明である。This is an excellent invention that has the following effects.
第１図は、本発明の医療用針を組み立てる前の概略図、
第２図は本発明の医療用針を組み立てたところの概略図
、第３図は、従来の医療用針の概略図を示す。
図中、１は医療用針、２は計キャップ、３は針基５４は
第一の溝部、５は第二の溝部、６は基端部、７は第一の
段部、８は第二の段部、９は針管を示す。FIG. 1 is a schematic diagram of the medical needle of the present invention before assembly;
FIG. 2 is a schematic diagram of the assembled medical needle of the present invention, and FIG. 3 is a schematic diagram of a conventional medical needle. In the figure, 1 is a medical needle, 2 is a meter cap, 3 is a needle base 54, a first groove, 5 is a second groove, 6 is a proximal end, 7 is a first step, and 8 is a second groove. The stepped portion 9 indicates the needle tube.
Claims (1)
いて、前記針キャップはプラズマ処理されかつ第一の嵌
合溝とテーパー状に形成された第二の嵌合溝を有し、 前記針基は、第一の段部とテーパー状に形成された第二
の段部を有し、 前記第二の嵌合溝の最大内径ｒ＿２と前記第二の段部の
最大外径ｒ＿１がｒ＿１＞ｒ＿２に設定され、前記第二
の嵌合溝の内周面と前記第二の段部の外周面に接着剤を
充填して、針キャップと針基を嵌合したことを特徴とす
る医療用針[Scope of Claims] A medical needle comprising a needle cap and a needle base in which a needle tube is implanted, wherein the needle cap is plasma-treated and has a first fitting groove and a tapered second fitting groove. The needle hub has a first step and a second step formed in a tapered shape, and the maximum inner diameter r_2 of the second fitting groove and the maximum of the second step are The outer diameter r_1 is set to r_1>r_2, the inner circumferential surface of the second fitting groove and the outer circumferential surface of the second step are filled with adhesive, and the needle cap and the needle base are fitted together. A medical needle featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1226550A JPH0622640B2 (en) | 1989-09-01 | 1989-09-01 | Medical needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1226550A JPH0622640B2 (en) | 1989-09-01 | 1989-09-01 | Medical needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0390159A true JPH0390159A (en) | 1991-04-16 |
| JPH0622640B2 JPH0622640B2 (en) | 1994-03-30 |
Family
ID=16846913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1226550A Expired - Fee Related JPH0622640B2 (en) | 1989-09-01 | 1989-09-01 | Medical needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622640B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100804897B1 (en) * | 2001-08-11 | 2008-02-20 | 엘지노텔 주식회사 | Method for Schema Changing in Duplexed System |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63203165A (en) * | 1987-02-19 | 1988-08-23 | ジェフレィ サウンドハウス | Safety instrument for subcataneous syringe needle |
-
1989
- 1989-09-01 JP JP1226550A patent/JPH0622640B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63203165A (en) * | 1987-02-19 | 1988-08-23 | ジェフレィ サウンドハウス | Safety instrument for subcataneous syringe needle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100804897B1 (en) * | 2001-08-11 | 2008-02-20 | 엘지노텔 주식회사 | Method for Schema Changing in Duplexed System |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0622640B2 (en) | 1994-03-30 |
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