JPH0546468Y2 - - Google Patents
Info
- Publication number
- JPH0546468Y2 JPH0546468Y2 JP1989131289U JP13128989U JPH0546468Y2 JP H0546468 Y2 JPH0546468 Y2 JP H0546468Y2 JP 1989131289 U JP1989131289 U JP 1989131289U JP 13128989 U JP13128989 U JP 13128989U JP H0546468 Y2 JPH0546468 Y2 JP H0546468Y2
- Authority
- JP
- Japan
- Prior art keywords
- tubular member
- mounting portion
- fitted
- medical device
- 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
- 239000000470 constituent Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910017535 Cu-Al-Ni Inorganic materials 0.000 description 1
- 229910017566 Cu-Mn Inorganic materials 0.000 description 1
- 229910017773 Cu-Zn-Al Inorganic materials 0.000 description 1
- 229910017871 Cu—Mn Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910004337 Ti-Ni Inorganic materials 0.000 description 1
- 229910011209 Ti—Ni Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- GMVPEJUTFFCKDK-UHFFFAOYSA-N [Nb].[U] Chemical compound [Nb].[U] GMVPEJUTFFCKDK-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- WCCJVMGTHFZXBN-UHFFFAOYSA-N magnesium oxygen(2-) zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4].[Mg+2] WCCJVMGTHFZXBN-UHFFFAOYSA-N 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002616 plasmapheresis Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
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、血液バツグ、プラズマフエレーシス
用バツグ、自家輸血セツト、高カロリー輸液バツ
グ、輸液バツグ、輸血・輸液セツト等の医療用具
に装着される医療用具に関するもので、特に接着
剤・ブロツキング接着等の接着手段を用いずに、
第１の管状部材と第２の管状部材を接続した医療
用具である。[Detailed description of the invention] [Field of industrial application] This invention can be attached to medical equipment such as blood bags, plasmapheresis bags, autotransfusion sets, high-calorie infusion bags, infusion bags, blood transfusion/infusion sets, etc. This relates to medical devices that can be used without the use of adhesives, blocking adhesives, etc.
This is a medical device in which a first tubular member and a second tubular member are connected.
［従来の技術及び考案が解決しようとする課題］
現在使用されている医療用具は、第１の管状部
材と第２の管状部材の接続態様として、
接着剤を使用して接続したもの、
第１の管状部材とチユーブの構成材料の性質
利用して、熱をかけてブロツキング（合成樹脂
中に配合されている可塑剤が、熱を加えること
により双方の構成材料間に移行して、構成材料
が接着する現象）により接続したもの、
がある。[Problems to be solved by conventional techniques and inventions] Medical devices currently in use include those in which the first tubular member and the second tubular member are connected using an adhesive; Taking advantage of the properties of the constituent materials of the tubular member and tube, heat is applied to block (the plasticizer blended in the synthetic resin transfers between the constituent materials of both by applying heat, and the constituent materials There are two types of devices that are connected by the phenomenon of adhesion.
しかしながら前記の接続態様では、接着剤が
血液、薬液中に溶出する危険があり、完璧な衛生
性と安全性が要求される医療の分野においては好
ましくない。 However, in the above connection mode, there is a risk that the adhesive will dissolve into blood or medicinal solutions, and this is not preferable in the medical field where perfect hygiene and safety are required.
また前記の接続態様では、数は非常に少ない
が第２の管状部材が、第１の管状部材から簡単に
離脱するものがあり（ブロツキング接着に使用さ
れる塩化ビニル樹脂は、熱を加えると収縮しやす
く、室温にもどると元の形状近い形状に回復しや
すいので、構成材料の微妙な寸法のばらつきによ
り、簡単に離脱するものがあるといわれている）、
血液等の移送中に離脱すると重大な事故に発展し
かねないので、このような離脱は完璧に防止しな
ければならない。 In addition, in the connection mode described above, there are cases in which the second tubular member easily separates from the first tubular member, although the number is very small (the vinyl chloride resin used for blocking adhesive shrinks when heated). (It is said that some parts may easily separate due to subtle dimensional variations in the constituent materials.)
If it detaches during the transfer of blood, etc., it could lead to a serious accident, so such detachment must be completely prevented.
そこで、本考案者は、鋭意検討を重ねた結果、
上記の溶出や離脱等の問題が全くない次の医療用
具１を考案するに至つた。 Therefore, after careful consideration, the inventor of the present invention found that
We have now devised the following medical device 1, which does not have any of the above-mentioned problems such as elution and detachment.
［課題を解決するための手段］
本考案は、構成部品中に第１の管状部材と第２
の管状部材を有する医療用具１であつて、前記第
１の管状部材４の外周面に第２の管状部材の装着
部５が形成され、該装着部５に第２の管状部材６
が圧入嵌合されるとともに、前記装着部５に圧入
嵌合され第２の管状部材６の外周面に、形状記憶
チユーブ７を嵌合してなる医療用具１を提供する
ものである。[Means for solving the problem] The present invention includes a first tubular member and a second tubular member in the component parts.
A medical device 1 having a tubular member, in which a second tubular member mounting portion 5 is formed on the outer circumferential surface of the first tubular member 4, and a second tubular member 6 is attached to the mounting portion 5.
A medical device 1 is provided in which a shape memory tube 7 is press-fitted into the mounting portion 5 and fitted onto the outer circumferential surface of the second tubular member 6.
［作用］
第１の管状部材４に接続した第２の管状部材６
は、その外周面を形状記憶合金または形状記憶プ
ラスチツクから構成されるチユーブ７により、強
くに押え込まれているので、いかなる場合でも、
第１の管状部材４から離脱するおそれはない。[Function] Second tubular member 6 connected to first tubular member 4
The outer circumferential surface of the tube 7 made of shape memory alloy or shape memory plastic is strongly pressed down, so in any case,
There is no risk of it separating from the first tubular member 4.
［実施例］
第１図は、構成部品中に第１の管状部材と第２
の管状部材を有する医療用具１（本実施例では輸
液セツト）の概略図で、医療用具１は、針キヤツ
プ２と針管３を植設した第１の管状部材４から構
成されている。第２図は医療用具１の組み立て前
の概略図である。[Example] FIG. 1 shows a first tubular member and a second tubular member in the component parts.
1 is a schematic diagram of a medical device 1 (in this embodiment, an infusion set) having a tubular member. The medical device 1 is composed of a first tubular member 4 in which a needle cap 2 and a needle tube 3 are implanted. FIG. 2 is a schematic diagram of the medical device 1 before assembly.
第１の管状部材４は、ポリスチレン、ポリプロ
ピレン等の硬質の合成樹脂からなり、後方部の外
周面に第２の管状部材の装着部５が形成されてい
る。 The first tubular member 4 is made of a hard synthetic resin such as polystyrene or polypropylene, and has a mounting portion 5 for the second tubular member formed on the outer peripheral surface of the rear portion.
該装着部５には第２の管状部材６が圧入嵌合さ
れるとともに、前記装着部５に圧入嵌合された第
２の管状部材６の外周面に、嵌合される形状記憶
チユーブ７は形状記憶合金、形状記憶セラミツク
ス、形状記憶プラスチツク等から構成されてい
る。 A second tubular member 6 is press-fitted into the mounting portion 5, and a shape memory tube 7 is fitted onto the outer peripheral surface of the second tubular member 6 press-fitted into the mounting portion 5. It is composed of shape memory alloys, shape memory ceramics, shape memory plastics, etc.
チユーブ７を構成する形状記憶合金としては、
Ti−Ni合金、Cu−Zn−Al合金、Cu−Mn合金、
Cu−Al−Ni合金、Cu−Zn−Si合金、Cu−Zn−
Snマルテンサイト合金、β−Cn−Zn−Mn合金、
ウラン−ニオブ合金が使用され、形状記憶セラミ
ツクとして、酸化ジルコニウム−酸化マグネシウ
ム、形状記憶プラスチツクとして、トランスポリ
イソプレン、ポリノルボルネン、スチレン−ブタ
ジエン共重合体、ポリウレタンが使用される。 The shape memory alloy that makes up the tube 7 is as follows:
Ti-Ni alloy, Cu-Zn-Al alloy, Cu-Mn alloy,
Cu-Al-Ni alloy, Cu-Zn-Si alloy, Cu-Zn-
Sn martensitic alloy, β-Cn-Zn-Mn alloy,
A uranium-niobium alloy is used, zirconium oxide-magnesium oxide is used as the shape memory ceramic, and transpolyisoprene, polynorbornene, styrene-butadiene copolymer, and polyurethane are used as the shape memory plastic.
医療用具１の組み立てに際しては、第２の管状
部材の装着部５に第２の管状部材６を圧入嵌合さ
せて、さらに第２の管状部材の外周面に、第２の
管状部材６の内径より若干小さい径に形状記憶成
形されたチユーブ７を圧入嵌合する。その後、所
定の医療用具に装着した後、加熱処理を施してチ
ユーブ７の形状を回復させる共に、第２の管状部
材６を外周方向から圧縮させて、第２の管状部材
６を前記装着部５に強く押え込む。 When assembling the medical device 1, the second tubular member 6 is press-fitted into the mounting portion 5 of the second tubular member, and the inner diameter of the second tubular member 6 is further attached to the outer peripheral surface of the second tubular member. A tube 7 formed by shape memory molding to have a slightly smaller diameter is press-fitted. Thereafter, after being attached to a predetermined medical device, heat treatment is performed to restore the shape of the tube 7, and the second tubular member 6 is compressed from the outer circumferential direction, so that the second tubular member 6 is attached to the attachment portion 5. Press down firmly.
基本的に、第２の管状部材６は、圧入嵌合と収
縮によつて第１の管状部材４に強固に接続される
（実用上は、これらの接続のみで充分な強度であ
る）ものであるが、チユーブ７を前記装着部５に
圧入された第２の管状部材６の外周面に嵌合する
ことにより、前述したように非常に少ない確立
で、第１の管状部材４から離脱するのを完全に防
止するこができるのである。 Basically, the second tubular member 6 is firmly connected to the first tubular member 4 by press-fitting and contraction (in practice, these connections alone have sufficient strength). However, by fitting the tube 7 to the outer peripheral surface of the second tubular member 6 press-fitted into the mounting portion 5, there is a very small probability that the tube 7 will separate from the first tubular member 4 as described above. can be completely prevented.
なお、本考案においては、弾性を有するチユー
ブ７を第１の管状部材４に一体に成形しても良
い。この場合は、第１の管状部材４の装着部５
に、第２の管状部材６を嵌合するのみであるから
組み立てが容易である。 In the present invention, the elastic tube 7 may be integrally formed with the first tubular member 4. In this case, the mounting portion 5 of the first tubular member 4
In addition, since the second tubular member 6 is simply fitted, assembly is easy.
また、本考案では、第１の管状部材４と第２の
管状部材６の接続強度をより強固にするために、
接着部５に第３図に示すように、リング状のリブ
８と溝部１０あるいは第４図に示すように凹凸１
２を形成しても良い。このようにすることによ
り、高圧上記滅菌処理中に、第２の管状部材６
は、部分的に前記リング状の溝部１０、凹凸１２
に食い込んで第１の管状部材４に強力に接着させ
ることができる。 Moreover, in the present invention, in order to further strengthen the connection strength between the first tubular member 4 and the second tubular member 6,
The adhesive part 5 has ring-shaped ribs 8 and grooves 10 as shown in FIG. 3, or unevenness 1 as shown in FIG.
2 may be formed. By doing this, during the high pressure sterilization process, the second tubular member 6
, the ring-shaped groove 10 and the unevenness 12 are partially formed.
It can be strongly bonded to the first tubular member 4 by biting into it.
［考案の効果］
以上説明したように、本考案は、第２の管状部
材６が第１の管状部材４から離脱するおそれが全
くなく、安心して使用することができる。[Effects of the Invention] As explained above, the present invention has no fear that the second tubular member 6 will separate from the first tubular member 4, and can be used with peace of mind.
さらに付言すれば、第２の管状部材６と第１の
管状部材４の接続部に、接着剤を使用していない
ので、衛生性と安全性が保証されている。 Furthermore, since no adhesive is used in the connection between the second tubular member 6 and the first tubular member 4, hygiene and safety are guaranteed.
第１図は医療用具の概略図、第２図は医療用具
１の組み立て前の概略図、第３図及び第４図は本
考案の医療用具のその他の実施例を示す一部拡大
図である。
図中、１は医療用具、２は針キヤツプ、３は針
管、４は第１の管状部材、５は装着部、６は第２
の管状部材、７は形状記憶チユーブである。
FIG. 1 is a schematic diagram of the medical device, FIG. 2 is a schematic diagram of the medical device 1 before assembly, and FIGS. 3 and 4 are partially enlarged views showing other embodiments of the medical device of the present invention. . In the figure, 1 is a medical device, 2 is a needle cap, 3 is a needle tube, 4 is a first tubular member, 5 is a mounting part, and 6 is a second
The tubular member 7 is a shape memory tube.
Claims (1)
を有する医療用具において、第１の管状部材４の
外周面に第２の管状部材の装着部５が形成され、
該装着部５に第２の管状部材６が圧入嵌合される
とともに、前記装着部５に圧入嵌合された第２の
管状部材６の外周面に、形状記憶チユーブ７を嵌
合したことを特徴とする医療用具１。 In a medical device having a first tubular member and a second tubular member in its constituent parts, a mounting portion 5 for the second tubular member is formed on the outer circumferential surface of the first tubular member 4,
The second tubular member 6 is press-fitted into the mounting portion 5, and the shape-memory tube 7 is fitted onto the outer peripheral surface of the second tubular member 6 press-fitted into the mounting portion 5. Featured medical equipment 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989131289U JPH0546468Y2 (en) | 1989-11-10 | 1989-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989131289U JPH0546468Y2 (en) | 1989-11-10 | 1989-11-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0370151U JPH0370151U (en) | 1991-07-12 |
| JPH0546468Y2 true JPH0546468Y2 (en) | 1993-12-06 |
Family
ID=31678805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989131289U Expired - Lifetime JPH0546468Y2 (en) | 1989-11-10 | 1989-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0546468Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152655A (en) * | 1980-04-28 | 1981-11-26 | Terumo Corp | Balloon catheter with backward flow preventing valve |
| JPS57161394A (en) * | 1981-03-26 | 1982-10-04 | Olympus Optical Co | Tube connector |
-
1989
- 1989-11-10 JP JP1989131289U patent/JPH0546468Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56152655A (en) * | 1980-04-28 | 1981-11-26 | Terumo Corp | Balloon catheter with backward flow preventing valve |
| JPS57161394A (en) * | 1981-03-26 | 1982-10-04 | Olympus Optical Co | Tube connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0370151U (en) | 1991-07-12 |
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