JPS624141B2 - - Google Patents
Info
- Publication number
- JPS624141B2 JPS624141B2 JP53026294A JP2629478A JPS624141B2 JP S624141 B2 JPS624141 B2 JP S624141B2 JP 53026294 A JP53026294 A JP 53026294A JP 2629478 A JP2629478 A JP 2629478A JP S624141 B2 JPS624141 B2 JP S624141B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- tube
- pipe
- adhesive
- infusion
- 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
Links
- 229920003002 synthetic resin Polymers 0.000 claims description 19
- 239000000057 synthetic resin Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 6
- 239000008280 blood Substances 0.000 claims 1
- 210000004369 blood Anatomy 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 238000001802 infusion Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は注射針と輸液用合成樹脂管を結合させ
る方法及びその継手に関するものである。接着剤
の普及改良によつて注射針と針基を合成樹脂接着
剤で結合した場合の結合強度は、機械的結合以上
の結合力を有して更に注射針の量産化を可能にし
た。従来からの注射針と針基等との接着結合手段
は、液状の接着剤を使用して結合させることであ
つたが、この方法は量産化を進める上では、接着
機構が複雑になつてしまう。そこで本発明は、注
射針を輸液管等に結合させることを極めて容易に
実施出来る方法を提供し且つその手段に供する接
着液に代えた固形状の管継手を提供するものであ
る。次に本発明の一実施例の図面によつて詳細説
明をする。第１図は二重構造を形成させた固形接
着管継手の側面断面図である。熱によつて収縮を
する管イの内径に、低融点合成樹脂管ロを設けて
二重構造の管１を形成する。これを所望の長さｌ
に切断して筒状の固形状管継手１ｎをｎ個造る。
第２図は管継手１ｎを、注射針２に輸液用合成樹
脂管３を結合した部分に設けて熱処理をする前の
状態を示す側面断面図である。管継手１ｎに熱を
加えると熱収縮性合成樹脂管イは収縮を始めるが
低融点合成樹脂ロが溶解し始めてから、熱収縮性
合成樹脂ロの収縮圧力で低融点合成樹脂ロは注射
針２と輸液用合成樹脂管３とのすき間へ流れた所
で加熱を中止して冷却する。第３図は、管継手１
ｎを熱処理した後の注射針２と輸液用合成樹脂管
３とを接着結合した状態を示した側面断面図であ
る。管継手１ｎを加熱して注射針２と輸液用合成
樹脂管３を結合する場合は、熱処理装置は大型な
ものは必要でなく、低融点合成樹脂ロが溶解する
温度150゜以内の熱処理で充分である。以上の様
にして本発明の実施によつて、極めて簡単な設備
で注射針と輸液用合成樹脂管とを結合出来ること
及び接着剤を液状のものを使用しないで接着剤の
取扱いが楽であり尚且つ収縮性合成樹脂の収縮圧
力を利用して接着剤を細部まで流入させ液漏れを
防止出来る等の効果を有している。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for connecting an injection needle to a synthetic resin tube for infusion, and a joint therefor. With the spread and improvement of adhesives, the strength of the bond between the injection needle and the needle base using a synthetic resin adhesive exceeds that of mechanical bonding, making it possible to mass-produce injection needles. The conventional adhesive bonding method for syringe needles and needle bases, etc. has been to use liquid adhesive to bond them, but this method requires a complicated bonding mechanism when mass production is promoted. . SUMMARY OF THE INVENTION The present invention provides a method for extremely easily connecting an injection needle to an infusion tube or the like, and provides a solid tube joint instead of an adhesive for this purpose. Next, an embodiment of the present invention will be explained in detail with reference to the drawings. FIG. 1 is a side cross-sectional view of a solid adhesive pipe joint having a double structure. A low melting point synthetic resin pipe 2 is provided on the inner diameter of the pipe 1, which shrinks due to heat, to form a double-structured pipe 1. Cut this to the desired length l
to make n cylindrical solid pipe joints 1n.
FIG. 2 is a side cross-sectional view showing a state in which a pipe joint 1n is provided at a portion where a synthetic resin tube 3 for infusion is connected to an injection needle 2 and is not subjected to heat treatment. When heat is applied to the pipe joint 1n, the heat-shrinkable synthetic resin pipe A begins to shrink, but after the low-melting synthetic resin B begins to melt, the shrinkage pressure of the heat-shrinkable synthetic resin B causes the low-melting synthetic resin B to become the syringe needle 2. When the liquid flows into the gap between the liquid and the synthetic resin tube 3 for infusion, the heating is stopped and the liquid is cooled. Figure 3 shows pipe fitting 1
FIG. 3 is a side cross-sectional view showing a state in which the injection needle 2 and the synthetic resin tube 3 for infusion are adhesively bonded after being heat-treated. When heating the pipe joint 1n to join the injection needle 2 and the synthetic resin tube 3 for infusion, a large-sized heat treatment device is not required, and heat treatment at a temperature of 150° or less at which the low-melting point synthetic resin melts is sufficient. It is. As described above, by carrying out the present invention, a syringe needle and a synthetic resin tube for infusion can be connected with extremely simple equipment, and the adhesive can be easily handled without using a liquid adhesive. Furthermore, it has the advantage of being able to prevent liquid leakage by allowing the adhesive to flow into fine details by utilizing the contraction pressure of the shrinkable synthetic resin.
第１図…二重構造の接着剤の側面断面図。第２
図…熱処理前の側面断面図。第３図…熱処理後の
側面断面図。
１……二重構造の接着管材、１ｎ……二重構造
を有した管継手、２……注射針、３……輸液用合
成樹脂管、イ……収縮性合成樹脂管、ロ……低融
点合成樹脂管。
Fig. 1: A side cross-sectional view of a double-layered adhesive. Second
Figure: Side sectional view before heat treatment. Fig. 3: Side sectional view after heat treatment. 1...Adhesive pipe material with double structure, 1n...pipe joint with double structure, 2...syringe needle, 3...synthetic resin pipe for infusion, a...shrinkable synthetic resin pipe, b...low Melting point synthetic resin pipe.
Claims (1)
を設けて二重構造の管を形成させて、該二重管を
所望の長さに切断してなる注射針と輸血用管を結
合させる注射用管継手。1. A low-melting synthetic resin tube is provided on the inner diameter of the heat-shrinkable synthetic resin tube to form a double-walled tube, and the double-walled tube is cut to a desired length to connect the resulting injection needle and blood transfusion tube. Pipe fitting for injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2629478A JPS54118690A (en) | 1978-03-07 | 1978-03-07 | Tube joint for injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2629478A JPS54118690A (en) | 1978-03-07 | 1978-03-07 | Tube joint for injection needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54118690A JPS54118690A (en) | 1979-09-14 |
| JPS624141B2 true JPS624141B2 (en) | 1987-01-28 |
Family
ID=12189291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2629478A Granted JPS54118690A (en) | 1978-03-07 | 1978-03-07 | Tube joint for injection needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54118690A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57160468A (en) * | 1981-03-26 | 1982-10-02 | Terumo Corp | Puncture needle with soft tube |
-
1978
- 1978-03-07 JP JP2629478A patent/JPS54118690A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54118690A (en) | 1979-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3471019A (en) | Filter unit | |
| CA1331366C (en) | Method and device for manipulating and transferring products between confined volumes | |
| US4767426A (en) | Membrane filter tube and method of preparation | |
| DE60023502T2 (en) | WELDING MUFF WITH REINFORCEMENT FOR PLASTIC PIPES | |
| FR2316464A1 (en) | IMPROVEMENTS IN THE MEANS OF ASSEMBLING TUBULAR ELEMENTS | |
| US3721231A (en) | Catheter for high pressure injections | |
| GB1265246A (en) | ||
| US3728184A (en) | Method of making syringe and needle adapter assembly by ultrasonic bonding | |
| JPH0557480B2 (en) | ||
| JP2554733B2 (en) | Resin tube joining method | |
| US3638650A (en) | Syringe and needle adapter assembly and method of making same | |
| GB1108851A (en) | Improvements relating to the formation of sweat soldered joints between telescoped members | |
| US3795558A (en) | Method of ultrasonic sealing hollow members | |
| JPS624141B2 (en) | ||
| EP0094942A1 (en) | Cannula support assembly and its method of manufacture. | |
| JPH0224573B2 (en) | ||
| JP2682518B2 (en) | Plumbing | |
| JPS5987115A (en) | Method of densely burying one or several membrane into thermoplastic material | |
| JPS6245025Y2 (en) | ||
| GB1329364A (en) | Joining of pipes made of or lined with thermoplastic materials | |
| JP2899035B2 (en) | Joint and method for producing the joint | |
| JPS624995B2 (en) | ||
| US2504127A (en) | Method of producing hypodermic units | |
| JPH0197473A (en) | Tubular member and tubular member assembly | |
| JP3271267B2 (en) | Resin tube joined body and its manufacturing method |