JPH0345738Y2 - - Google Patents
Info
- Publication number
- JPH0345738Y2 JPH0345738Y2 JP13122787U JP13122787U JPH0345738Y2 JP H0345738 Y2 JPH0345738 Y2 JP H0345738Y2 JP 13122787 U JP13122787 U JP 13122787U JP 13122787 U JP13122787 U JP 13122787U JP H0345738 Y2 JPH0345738 Y2 JP H0345738Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- tweezers
- fixing means
- main body
- current
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000573 polyethylene 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
- 238000011084 recovery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は本出願人がすでに特願昭62−166110号
明細書において提案した体内埋め込みカテーテル
の接続パイプとチユーブとを接続するためのもの
で、形状記憶合金製固着手段としての例えばコイ
ルに通電してこれを加熱し、形状記憶合金の形状
回復を利用してチユーブを接続パイプに固着させ
るための通電用ピンセツトに関する。[Detailed description of the invention] <Industrial application field> The present invention is for connecting a connecting pipe and a tube of a catheter to be implanted in the body, which the applicant had already proposed in Japanese Patent Application No. 166110/1982. The present invention relates to a current-carrying tweezers for fixing a tube to a connecting pipe by applying current to a coil to heat the shape-memory alloy fixing means and utilizing the shape recovery of the shape-memory alloy.
〈従来の技術およびその問題点〉
本考案は特願昭62−166110号明細書において提
案された体内埋め込みカテーテル専用のチユーブ
接続用補助具であり、新規なものである。<Prior Art and its Problems> The present invention is a new tube connection aid exclusively for catheters implanted in the body, which was proposed in Japanese Patent Application No. 166110/1982.
〈問題点を解決するための手段〉
本考案は、体内埋め込みカテーテルの形状記憶
合金製固着手段に通電するための用具として、Ｕ
字状の本体と、該本体の先端部に設けられた電極
と、該電極を電源に接続するリード線とからな
り、前記電極で導体を挾持したときに通電するよ
うに構成されてなることを特徴とする通電用ピン
セツトを採用している。<Means for solving the problems> The present invention provides U as a tool for energizing the shape memory alloy fixing means of a catheter implanted in the body.
It consists of a letter-shaped body, an electrode provided at the tip of the body, and a lead wire that connects the electrode to a power source, and is configured to conduct electricity when a conductor is held between the electrodes. Adopts special tweezers for energizing.
〈作用〉
本考案の通電用ピンセツトは上記のように構成
されているので、形状記憶合金製固着手段をピン
セツトの電極で挾むと、固着手段に電流が流れ
る。すると固着手段はそれ自身の電気抵抗により
発熱してアモルフオス変態点以上の温度で形状を
回復し、チユーブを接続パイプに締め付け固着す
る。<Function> Since the current-carrying tweezers of the present invention are constructed as described above, when the shape memory alloy fixing means is held between the electrodes of the tweezers, a current flows through the fixing means. Then, the fixing means generates heat due to its own electric resistance, recovers its shape at a temperature above the amorphous transformation point, and tightens and fixes the tube to the connecting pipe.
〈実施例〉
次に本考案の実施例について図面を用いて説明
する。<Example> Next, an example of the present invention will be described using the drawings.
第１図は本考案の一実施例に係る通電用ピンセ
ツトの斜視図、第２図は第１図のピンセツトの使
用状況説明図である。 FIG. 1 is a perspective view of a current-carrying tweezers according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of how the tweezers shown in FIG. 1 are used.
第１図に示すように本考案の通電用ピンセツト
１はＵ字状の本体２と、この本体２の先端部に設
けられた電極３と、この電極３を電源（省略して
ある）に接続するためのリード線４とから構成さ
れており、リード線４の基端部には好ましくはソ
ケツト５が設けられている。 As shown in Fig. 1, the current-carrying tweezers 1 of the present invention include a U-shaped main body 2, an electrode 3 provided at the tip of the main body 2, and a power supply (not shown) connected to the electrode 3. A socket 5 is preferably provided at the base end of the lead wire 4.
本体２は弾性を有する絶縁材料のたとえばポリ
エチレンやポリプロピレン、ポリ塩化ビニルなど
でＵ字状の弾性体に形成されており、その先端部
には電極３が固着され、その内部には電極３の陰
極または陽極にそれぞれ接続される１対のリード
線４が埋設されている。 The main body 2 is formed of an elastic insulating material such as polyethylene, polypropylene, polyvinyl chloride, etc. into a U-shaped elastic body, and an electrode 3 is fixed to the tip thereof, and a cathode of the electrode 3 is disposed inside the main body 2. Alternatively, a pair of lead wires 4 each connected to the anode are buried.
電極３は金属などの良導体で形成されており、
その本体２の接続端側でリード線４と接続されて
いる。 The electrode 3 is made of a good conductor such as metal,
The main body 2 is connected to a lead wire 4 at its connecting end.
リード線４は金属などの良導体で形成されてお
り、酸素２に埋設された１対のリード線４がその
端部でそれぞれ電極３に接続されると共に、１対
のリード線４の他端部は好ましくはソケツト５に
接続されている。ここでリード線４は必ずしも本
体２に埋設される必要がなく、一端に電極３と接
続可能に形成された端子を有するものであつても
良く、またリード線４の他端は直接電源に接続さ
れたものであつても良い。またリード線４が直接
電源に接続されたものの場合には、本体２内に電
池が収納可能に形成されたものであつても良い。 The lead wires 4 are made of a good conductor such as metal, and the ends of the pair of lead wires 4 embedded in the oxygen 2 are connected to the electrodes 3, and the other end of the pair of lead wires 4 is connected to the electrode 3. is preferably connected to socket 5. Here, the lead wire 4 does not necessarily have to be buried in the main body 2, and may have a terminal formed at one end so that it can be connected to the electrode 3, and the other end of the lead wire 4 is directly connected to the power source. It may be something that has been done. Further, in the case where the lead wire 4 is directly connected to a power source, the main body 2 may be formed so that a battery can be stored therein.
次に本考案の通電ピンセツトの使用方法につい
て説明する。 Next, a method of using the current-carrying tweezers of the present invention will be explained.
第２図に示すようなリザーバ６とチユーブ８お
よび固着手段９からなる体内埋め込みカテーテル
において、リザーバ６の接続パイプ７にチユーブ
８をしつかり固定するためには、まず接続パイプ
７にチユーブ８を挿着し、これに固着手段９を固
着部位まで挿入した後、固着手段９を通電ピンセ
ツト１で挾む。すると固着手段９は形状記憶合金
で形成されているので、通電ににより加熱され、
形状を回復して収縮し、チユーブ８を強く締め付
けてこれを接続パイプ７に固着する。 In an implantable catheter consisting of a reservoir 6, a tube 8, and a fixing means 9 as shown in FIG. 2, in order to securely fix the tube 8 to the connection pipe 7 of the reservoir 6, first insert the tube 8 into the connection pipe 7. After the fixing means 9 is inserted to the fixing site, the fixing means 9 is clamped with the current-carrying tweezers 1. Then, since the fixing means 9 is made of a shape memory alloy, it is heated by electricity, and
It recovers its shape and contracts, and the tube 8 is strongly tightened to fix it to the connecting pipe 7.
〈考案の効果〉
体内埋め込みカテーテルの形状記憶合金製固着
手段を加熱する方法としては温風や温水を利用す
る方法もあるが、これらの方法は時間がかかる
上、時間短縮のために加熱温度を上げると、固着
手段付近の人体組織を損傷する虞れがあるのに対
し、本考案の通電用ピンセツトを用いれば、固着
手段のみを加熱することになるので、固着手段付
近の人体組織を損傷することがない。また非常に
簡便であり、短時間で加熱を行なうことができる
ので、カテーテルの埋め込み手術を短時間で行う
ことができる。<Effects of the invention> There are methods to use hot air or hot water to heat the shape memory alloy fixation means of a catheter implanted in the body, but these methods are time-consuming and require a high heating temperature to shorten the time. If the tweezers are raised, there is a risk of damaging the human tissue near the fixing means, whereas if the current-carrying tweezers of the present invention are used, only the fixing means will be heated, so there is a risk of damaging the human tissues near the fixing means. Never. In addition, it is very simple and can be heated in a short time, so the catheter implantation surgery can be performed in a short time.
第１図は本考案の実施例の斜視図、第２図は第
１図のピンセツトの使用状況説明図である。
主な符号の説明、１：通電用ピンセツト、２：
本体、３：電極、４：リード線、７：接続パイ
プ、８：チユーブ、９：固着手段。
FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of how the tweezers shown in FIG. 1 are used. Explanation of main symbols: 1: Current-carrying tweezers, 2:
Main body, 3: electrode, 4: lead wire, 7: connecting pipe, 8: tube, 9: fixing means.
Claims (1)
電極と、該電極を電源に接続するリード線とから
なり、前記電極で導体を挾持したときに通電する
ように構成されてなることを特徴とする通電用ピ
ンセツト。 It consists of a U-shaped main body, an electrode provided at the tip of the main body, and a lead wire that connects the electrode to a power source, and is configured to be energized when a conductor is held between the electrodes. Current-carrying tweezers featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13122787U JPH0345738Y2 (en) | 1987-08-28 | 1987-08-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13122787U JPH0345738Y2 (en) | 1987-08-28 | 1987-08-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6437249U JPS6437249U (en) | 1989-03-07 |
| JPH0345738Y2 true JPH0345738Y2 (en) | 1991-09-26 |
Family
ID=31387095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13122787U Expired JPH0345738Y2 (en) | 1987-08-28 | 1987-08-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345738Y2 (en) |
-
1987
- 1987-08-28 JP JP13122787U patent/JPH0345738Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6437249U (en) | 1989-03-07 |
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