JP2732272B2 - Biological terminal structure - Google Patents
Biological terminal structureInfo
- Publication number
- JP2732272B2 JP2732272B2 JP63322005A JP32200588A JP2732272B2 JP 2732272 B2 JP2732272 B2 JP 2732272B2 JP 63322005 A JP63322005 A JP 63322005A JP 32200588 A JP32200588 A JP 32200588A JP 2732272 B2 JP2732272 B2 JP 2732272B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- syringe
- guide body
- connecting means
- outermost layer
- 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
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- Media Introduction/Drainage Providing Device (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【発明の詳細な説明】 本発明は生体端子に関する。The present invention relates to a biological terminal.
生体内外を長期間連通せしめるにすぐれた機能を発揮
する生体端子が提供された(特開昭59年第174146号、特
開昭60年第55965号、特開昭60年第58154号、特開昭60年
第92768号)。Biological terminals that exhibit excellent functions for long-term communication between the inside and outside of a living body have been provided (JP-A-59-174146, JP-A-60-55965, JP-A-60-58154, No. 92768 of 1985).
生体端子は、幅広い用途を有するにもかかわらず、実
用的な具体構造の解明は未だ不充分である。Despite the widespread use of biological terminals, the elucidation of a practical specific structure is still insufficient.
上記に鑑み本発明は、透析液等の薬液の投与乃至排
出、体液の抽出人等を簡便且つ安定的に行なう為に、生
体内外を細菌に汚染されることなく機械的に連通せしめ
るにすぐれた構造を備えた生体端子の提供を目的とす
る。In view of the above, the present invention is excellent in mechanically communicating inside and outside a living body without being contaminated with bacteria in order to easily and stably perform administration or discharge of a medical solution such as a dialysate and extraction of a body fluid. It is intended to provide a biological terminal having a structure.
以下本発明の実施例を図面を参照して詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
端子部(01) 第1図に側面を、第7図に上面の図を示した。Terminal (01) FIG. 1 shows a side view, and FIG. 7 shows a top view.
端子部(01)は、アルミナ、カーボン、ハイドロキシ
アパタイト、チタン、TCP、4CP等の生体親和性部材より
なる中空状の最外層体(11)の内部に、チタン等よりな
る内筐(12)を螺着して形成される。螺着は、最外層体
(11)及び内筐(12)に設けたネジ部(1A)で行なわれ
る。The terminal part (01) has an inner housing (12) made of titanium or the like inside a hollow outermost layer body (11) made of a biocompatible material such as alumina, carbon, hydroxyapatite, titanium, TCP, and 4CP. It is formed by screwing. Screwing is performed by the screw portion (1A) provided on the outermost layer body (11) and the inner casing (12).
最外層体(11)と内筐(12)の螺合を解除、分離、又
は螺合させる際、治具を挿入回動させる為の4つの溝
(70)が内筐(12)の上部に設けられている(第7図参
照)。When unscrewing, separating, or screwing the outermost layer (11) and the inner casing (12), four grooves (70) for inserting and rotating the jig are provided on the upper part of the inner casing (12). (See FIG. 7).
内筐(12)外縁には、Oリング等のシール(13)が付
設され、最外層体(11)と内筐(12)の接触面をシール
(13)で密設することにより、生体外部の水、細菌等異
物の侵入を阻止する。A seal (13) such as an O-ring is attached to the outer edge of the inner casing (12), and the contact surface between the outermost layer body (11) and the inner casing (12) is densely provided by the seal (13), so that the external Of foreign matter such as water and bacteria.
内筐(12)の内部には上下に摺動可能な軸(16)と、
この軸(16)を支えるチタン等の軸受け(17)が形成さ
れ、軸(16)上部に固定設置されたシリコーンゴムより
なる弁(18)は、バネ(18)によって内筐(12)内側上
部の孔部A(20)に圧設されている。内筐(12)上部の
側面周囲には、Oリング状のシール(14)が付設されて
いる。A shaft (16) slidable up and down inside the inner casing (12),
A bearing (17) made of titanium or the like for supporting the shaft (16) is formed. A valve (18) made of silicone rubber fixed and installed on the upper portion of the shaft (16) is moved upward by a spring (18). In the hole A (20). An O-ring-shaped seal (14) is provided around the upper side surface of the inner casing (12).
軸受け(17)には受け通路(15)が数個所穿設され、
更に内筐(12)の下部と最外層体(11)との間に液溜部
(21)が形成されている。Several bearing passages (15) are drilled in the bearing (17),
Further, a liquid reservoir (21) is formed between the lower portion of the inner casing (12) and the outermost layer body (11).
液溜部(21)にカテーテル(04)接続用のチタン等よ
りなる接続チューブ(22)が設けられている。A connection tube (22) made of titanium or the like for connecting the catheter (04) is provided in the liquid reservoir (21).
最外層体(11)上部周縁には水平に連続した突起部1
(23)が一体的に設けられ、最外層体(11)下部には水
平に連続した突起部2(24)が設けられている。突起部
2(24)には、複数の貫通孔(25)が設けられている。
突起部1(23)には凹状のストッパー受け(36)が設け
られている。The outermost layer (11) has a horizontally continuous protrusion 1 on the upper periphery.
(23) are provided integrally, and a horizontally continuous projection 2 (24) is provided below the outermost layer body (11). The protrusion 2 (24) is provided with a plurality of through holes (25).
The projection 1 (23) is provided with a concave stopper receiver (36).
端子部(01)上部には、ネジ部A(54)が設けられて
いる。A screw portion A (54) is provided above the terminal portion (01).
端子部(01)は、最外層体(11)の中程まで生体皮膚
組織に植設される。The terminal portion (01) is implanted in the living skin tissue up to the middle of the outermost layer body (11).
尚、最外層体(11)は、上記の他、生体親和性部材を
金属、又は樹脂、セラミックス等の非金属で形成した最
外層体表面に、プラズマ被覆等の各種方法でコーティン
グしたものであってもよい。In addition, the outermost layer (11) is obtained by coating the surface of the outermost layer formed of a non-metal such as metal or resin or ceramic with a biocompatible member by various methods such as plasma coating. You may.
ガイド体(02) ポリプロピレン樹脂、PVC等よりなるガイド体(02)
は、上下貫通した筒状体(26)によって形成され、内面
中程には凸部(27)が設けられ、筒状体(26)下部に
は、囲繞部(28)が形成されている。Guide body (02) Guide body made of polypropylene resin, PVC, etc. (02)
Is formed by a tubular body (26) penetrating up and down, a convex part (27) is provided in the middle of the inner surface, and a surrounding part (28) is formed below the tubular body (26).
又、第8図に示すように、凸部(27)周辺には、筒状
体(28)下部方向以外を方形状の空隙(1B)が取り囲
み、空隙(1B)がない筒状体(26)の下部方向には、切
込み(1C)が設けてある。As shown in FIG. 8, around the convex portion (27), a rectangular void (1B) surrounds the cylindrical body (28) except in the lower direction, and the cylindrical body (26) having no void (1B). A cut (1C) is provided in the lower direction of ().
囲繞部(28)をI−Iで切断し、その断面図を第3
図、第4図に示す。The surrounding part (28) is cut along II, and its sectional view is shown in FIG.
FIG. 4 and FIG.
囲繞部(28)周縁には、軸(43)(44)を中心に左右
に開く開き戸(41)(42)が形成され、左右の開き戸に
は把手が設けられている。一方の把手B(46)には係止
部(47)が設けられており、把手A(45)がこの係止部
(47)に係合されることにより、開き戸(41)(42)は
とじたまま係止される。囲繞部(28)は端子部(01)の
突起部1(23)周囲を囲繞すべく形成されたものであ
り、囲繞部内面の形状は突起1(23)の周囲形状に合わ
せて形成されている。又、囲繞部内面にはストッパー
(48)が設けられている。ストッパー(48)は、第7図
に示す端子部(01)のストッパー受け(36)と嵌合す
る。このことにより、端子部(01)上でガイド体(02)
が回動しないように固定される。On the periphery of the surrounding portion (28), hinged doors (41) and (42) that open left and right around the shafts (43) and (44) are formed, and handles are provided on the left and right hinged doors. One of the handles B (46) is provided with a locking portion (47), and when the handle A (45) is engaged with the locking portion (47), the hinged doors (41) and (42) are moved. Locked while closing. The surrounding portion (28) is formed so as to surround the periphery of the projection 1 (23) of the terminal portion (01), and the shape of the inner surface of the surrounding portion is formed in accordance with the shape of the periphery of the projection 1 (23). I have. A stopper (48) is provided on the inner surface of the surrounding portion. The stopper (48) fits with the stopper receiver (36) of the terminal portion (01) shown in FIG. As a result, the guide body (02) on the terminal portion (01)
Is fixed so as not to rotate.
尚、ガイド体に設けた開き戸(41)(42)は各々に軸
(43)(44)を設けているが、これに限らず、1つの軸
を支点に囲繞部が2つに分かれる形状等も取り得る。Each of the hinged doors (41) and (42) provided on the guide body is provided with a shaft (43) and (44), but the invention is not limited thereto. Can also be taken.
シリンジ(03) 第1図に於いて、中空部(34)を有する筒状シリンジ
本体(29)上部には、十文字方向に水平に延びる掛部
(30)が設けてある(第10図参照)。Syringe (03) In FIG. 1, a hook (30) extending horizontally in the cross direction is provided on the upper part of a cylindrical syringe body (29) having a hollow portion (34) (see FIG. 10). .
シリンジ本体(29)下部より中央にかけて、凹部(3
1)がシリンジ本体(29)の長手方向に沿って設けてあ
る。凹部(31)は、シリンジ本体(29)下部先端で段差
が設けられており、先端の深い場所を深部(31A)、浅
い場所を浅部(31B)とした。From the lower part of the syringe body (29) to the center,
1) is provided along the longitudinal direction of the syringe body (29). The concave portion (31) is provided with a step at the lower end of the syringe body (29), and a deeper portion is defined as a deep portion (31A) and a shallow portion is defined as a shallow portion (31B).
シリンジ本体(29)中央付近で凹部(31)は、シリン
ジ本体(29)の長手方向に対して垂直に約半周ほど延び
て水平部(31C)を形成している。The concave portion (31) near the center of the syringe body (29) extends approximately half way perpendicular to the longitudinal direction of the syringe body (29) to form a horizontal portion (31C).
シリンジ本体(29)先端(32)付近には、本体(29)
の中空部(34)と連通した孔部B(35)が設けられてい
る。Near the tip (32) of the syringe body (29), the body (29)
A hole B (35) communicating with the hollow portion (34) is provided.
又、シリンダ本体(29)に設けた凹部(31)は、その
浅部(31B)を長手方向に沿って形成されているが、こ
れらをらせん状に形成する場合もある。The concave portion (31) provided in the cylinder body (29) has a shallow portion (31B) formed along the longitudinal direction. However, these may be formed in a spiral shape.
尚、本発明に於いて、ガイド体、シリンジの材質は特
定するものではない。In the present invention, the materials of the guide body and the syringe are not specified.
次に動作について説明する。 Next, the operation will be described.
第1図に於いて、予め生体皮膚組織(BO)上に植設さ
れた端子部(01)は、最外層体(11)が生体との親和性
を保つことから、植設後2週間程度で皮膚組織と結合す
る。In FIG. 1, the terminal part (01) implanted in advance on the living skin tissue (BO) is about two weeks after the implantation since the outermost layer body (11) maintains the affinity with the living body. To combine with skin tissue.
シリンジ(03)及びガイド体(02)は結合した状態で
保持される。即ち、結合した状態であればシリンジ(0
3)の先端(32)付近を手で触れるようなことがなく、
雑菌等の付着を阻止できるからである。The syringe (03) and the guide body (02) are held in a connected state. That is, if the syringe is connected, the syringe (0
Without touching the tip (32) of 3)
This is because adhesion of various bacteria and the like can be prevented.
シリンジ(03)及びガイド体(02)の結合は、下述の
通り行なわれる。ガイド体(02)に設けた凸部(27)
が、切込み(1C)を支点としてガイド体(02)内外に弾
力的に揺動する為、シリンジ(03)が挿入されてから凸
部(27)が凹部(31)の深部(31A)に到達する迄、凸
部(27)はガイド体(02)の外側方向に押され、凹部
(31)の深部(31A)に到達すると、凸部(27)は元に
戻る。The connection between the syringe (03) and the guide body (02) is performed as described below. Convex part (27) provided on guide body (02)
However, the projection (27) reaches the deep part (31A) of the concave part (31) after the syringe (03) is inserted because it resiliently swings inside and outside the guide body (02) with the notch (1C) as a fulcrum. Until the protrusion (27) is pushed outward of the guide body (02), and reaches the deep portion (31A) of the recess (31), the protrusion (27) returns to its original position.
第3図乃至第4図に示すガイド体(02)の囲繞部(2
8)にある開き戸(41)(42)を開き、端子部(01)上
部の突起部(23)周辺を囲繞とし、把手部B(46)の係
止部(47)に把手A(45)を係合する。The surrounding portion (2) of the guide body (02) shown in FIGS.
8) Open the hinged doors (41) and (42), and surround the periphery of the protrusion (23) above the terminal (01), and use the handle A (45) on the locking part (47) of the handle B (46). Engage.
又、把手A(45)と把手B(46)の係合を解除すれば
開き戸(41)と(42)は開き、端子部(01)からガイド
体(02)を取り外すことができる。When the handle A (45) and the handle B (46) are released from engagement, the hinged doors (41) and (42) are opened, and the guide body (02) can be removed from the terminal portion (01).
端子部(01)にガイド体(02)を囲繞した後、シリン
ジ(03)を端子部(01)方向に押圧する。ガイド体(0
2)の凸部(27)は、自身の弾力性から、深部(31A)か
ら離脱し、浅部(31B)に沿ってシリンジ(03)の平行
部(31C)の付近に達する。次に若干の回転を加えて、
凸部(27)を水平部(31C)に移動させる。シリンジ(0
3)は上下の移動を阻止され固定される。After surrounding the guide body (02) with the terminal portion (01), the syringe (03) is pressed toward the terminal portion (01). Guide body (0
The convex part (27) of 2) separates from the deep part (31A) due to its elasticity and reaches the vicinity of the parallel part (31C) of the syringe (03) along the shallow part (31B). Then add some rotation,
Move the convex part (27) to the horizontal part (31C). Syringe (0
3) is fixed by preventing vertical movement.
シリンジ(03)の先端(32)が弁(18)を押圧し、弁
(18)は下方向へと押しやられる(第2図参照)。The tip (32) of the syringe (03) pushes the valve (18), which is pushed downward (see FIG. 2).
内筐(12)に設けられたシール(14)は、シリンジ
(03)の周縁と密着する。端子部(01)とシリンジ(0
3)がガイド体(02)を介して挿入固定された後、内部
を通る液体の通路は第2図に示す矢印の通りである。The seal (14) provided on the inner casing (12) is in close contact with the periphery of the syringe (03). Terminal (01) and syringe (0
After 3) is inserted and fixed via the guide body (02), the passage of the liquid passing through the inside is as shown by the arrow shown in FIG.
外部接続チューブ(05)よりシリンジ(03)の液体通
路(34)を介して流れてきた薬液は、先端(32)付近の
孔部B(33)、受け通路(15)を流れて液溜(21)に至
り、更に、接続チューブ(22)を介してカーテル(04)
に流れ込むものである。The chemical liquid flowing from the external connection tube (05) through the liquid passage (34) of the syringe (03) flows through the hole B (33) near the tip (32) and the receiving passage (15), and flows into the liquid reservoir ( 21), and further through the connecting tube (22), the cartel (04)
It flows into.
使用後、シリンジ(03)を挿入時と反対方向に回転さ
せて、凸部(27)をシリンジ本体(29)の長手方向の凹
部(31)迄至らしめ、シリンジ(03)を引く。凸部(2
7)は、凹部(31)の深部(31A)に入り、その状態でガ
イド体(02)とシリンジ(03)は固定される。After use, the syringe (03) is rotated in the opposite direction to that at the time of insertion, so that the protrusion (27) reaches the concave portion (31) in the longitudinal direction of the syringe body (29), and the syringe (03) is pulled. Convex (2
7) enters the deep part (31A) of the concave part (31), and the guide body (02) and the syringe (03) are fixed in that state.
シリンジ先端(32)によって押されていた弁(18)
は、再びバネ(19)の力によって孔部A(20)に押し当
てられる。互いに係合している把手を解除して、ガイド
体(02)を端子(03)上部から取り外す。Valve (18) pushed by syringe tip (32)
Is pressed against the hole A (20) again by the force of the spring (19). The handles engaged with each other are released, and the guide body (02) is removed from the upper part of the terminal (03).
弁(18)が孔部A(20)に押し当てられることによっ
て、生体内部への通路は遮断されるが、更に長期間使用
しない場合、第5図に示すようなシリコーンゴム等より
なるシール(53)を施し、更に殺菌剤(52)を含有した
キャップ(51)をキャップ(51)の内側に設けたネジ部
(55)と端子部(01)のネジ部(54)とを螺合披着させ
ておけば、より安全に端子部を生体上に設置しておける
ものである。When the valve (18) is pressed against the hole A (20), the passage into the living body is shut off. However, when the valve (18) is not used for a long period of time, a seal made of silicone rubber or the like as shown in FIG. 53), and a screw (55) provided inside the cap (51) with a cap (51) containing a disinfectant (52) and a screw (54) of a terminal (01) are screwed together. If the terminal portion is worn, the terminal portion can be more safely installed on the living body.
又、本発明を繰り返し使用し、端子部(01)内部及び
生体内部に配置したカテーテル(04)等の諸器具を洗浄
殺菌しなければならない場合、本発明では、第9図に示
すように内筐(12)の螺合を解除し、代わりに外部接続
チューブ(05)を接続した接続プラグ(90)を、接続プ
ラグ(90)内に設けたネジ部(91)と端子部(01)との
螺着によって端子部(01)上に固定することにより、外
部との洗浄、殺菌を目的とする薬液等の交換が行なえる
ものである。Further, when the present invention is repeatedly used and various devices such as the catheter (04) disposed inside the terminal portion (01) and inside the living body have to be washed and sterilized, the present invention requires the use of an internal as shown in FIG. Unscrew the housing (12) and replace the connection plug (90) with the external connection tube (05) with the screw (91) and terminal (01) provided inside the connection plug (90). By fixing on the terminal portion (01) by screwing, a chemical solution or the like for the purpose of cleaning and sterilization with the outside can be exchanged.
尚、本発明は、端子部に接続手段を結合させた際、連
通し、透析液等の薬液の投与排出、乃至体液の抽出入を
行なうことができるような構造、及び端子部上に接続手
段を固定させ得るような構造を有するガイド体であれ
ば、いかなる形状を有してもかまわないものである。例
えば、端子部(01)上に設けたネジ部(54)と螺合可能
な形状を有するガイド体、あるいは、第6図に示すよう
な囲繞部を有するガイド体が提示される。第6図は、第
1図に示すガイド体(02)のI−I′で切断した断面図
に相当する。動作を略説すると次の通りである。In addition, the present invention provides a structure that allows communication, administration and discharge of a medical solution such as a dialysate, or extraction and entry of a bodily fluid when the connecting means is connected to the terminal portion, and a connecting means on the terminal portion. The guide body may have any shape as long as the guide body has a structure that can fix the guide body. For example, a guide body having a shape that can be screwed with the screw part (54) provided on the terminal part (01) or a guide body having a surrounding part as shown in FIG. 6 is presented. FIG. 6 is a cross-sectional view taken along line II ′ of the guide body (02) shown in FIG. The operation is briefly described as follows.
把手A(61)、把手B(62)を押圧することにより、
支点(67)を中心に、開き戸(63)(64)が開き、囲繞
部(66)は開放され、端子部が囲繞される。By pressing the handle A (61) and the handle B (62),
The hinged doors (63) and (64) open around the fulcrum (67), the surrounding part (66) is opened, and the terminal part is surrounded.
把手A(61)、把手(62)の押圧を止めると、バネ
(65)の力によって把手A(61)と把手B(62)は外側
に力が加えられ、支点(67)を中心に、開き戸(63)
(64)は閉じて、ガイド体(02)は端子部上に固定され
る。When the pressing of the handles A (61) and (62) is stopped, a force is applied to the handles A (61) and B (62) outward by the force of the spring (65). Hinged door (63)
(64) is closed, and the guide body (02) is fixed on the terminal portion.
以上詳述の如く本発明は、生体皮膚を介する薬液の投
与交換等を長期間安定的に行なわせしむるに絶大な効果
を有するものである。As described in detail above, the present invention has an enormous effect for stably performing a long-term stable exchange of a drug solution through a living skin.
第1図は、本発明の一実施例を示す図、第2図は、第1
図に示す実施例中、流体の流れを示す動作説明図、第3
図、第4図は、第1図の実施例を上部より見た図、第5
図、第6図、第7図、第8図、第10図は、第1図に示す
実施例の一部分を示す図である。第9図は、本発明の他
の態様を示す図である。 01……端子部、 02……ガイド体、 03……シリンジ(接続手段)、 BO……生体皮膚組織。FIG. 1 is a diagram showing an embodiment of the present invention, and FIG.
Operation explanatory diagram showing the flow of fluid in the embodiment shown in FIG.
FIG. 4 is a top view of the embodiment of FIG. 1, FIG.
FIG. 6, FIG. 7, FIG. 8, FIG. 10, and FIG. 10 are views showing a part of the embodiment shown in FIG. FIG. 9 is a diagram showing another embodiment of the present invention. 01: Terminal part, 02: Guide body, 03: Syringe (connection means), BO: Living skin tissue.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−125265(JP,A) 特開 昭60−92768(JP,A) 特表 昭63−503121(JP,A) ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-125265 (JP, A) JP-A-60-92768 (JP, A) Tokuyo Sho-63-503121 (JP, A)
Claims (1)
前記端子部と着脱自在に設けた接続手段、端子部及び接
続手段を装着して接続手段を端子部上に固定する着脱自
在なガイド体、前記端子部内に形成され、且つ前記接続
手段が装着される際開口し、接続手段及び端子部面を機
械的に連通せしめる為の弁体よりなることを特徴とする
生体端子構造体。A terminal having a biocompatible member disposed around the terminal;
A connecting means detachably provided to the terminal part, a detachable guide body to which the terminal part and the connecting means are mounted to fix the connecting means on the terminal part, and which is formed in the terminal part, and wherein the connecting means is mounted. A living body terminal structure characterized by comprising a valve body which is opened at the time of opening to mechanically communicate the connecting means and the terminal portion surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63322005A JP2732272B2 (en) | 1988-12-22 | 1988-12-22 | Biological terminal structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63322005A JP2732272B2 (en) | 1988-12-22 | 1988-12-22 | Biological terminal structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02168968A JPH02168968A (en) | 1990-06-29 |
JP2732272B2 true JP2732272B2 (en) | 1998-03-25 |
Family
ID=18138858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63322005A Expired - Lifetime JP2732272B2 (en) | 1988-12-22 | 1988-12-22 | Biological terminal structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2732272B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2132277C (en) * | 1993-10-22 | 2005-05-10 | Giorgio Cirelli | Injection device |
GB0623395D0 (en) * | 2006-11-23 | 2007-01-03 | Renishaw Plc | Port |
JP2010220738A (en) * | 2009-03-23 | 2010-10-07 | Sumitomo Bakelite Co Ltd | Connector |
GB201002370D0 (en) | 2010-02-12 | 2010-03-31 | Renishaw Ireland Ltd | Percutaneous drug delivery apparatus |
GB201217606D0 (en) | 2012-10-02 | 2012-11-14 | Renishaw Plc | Neurosurgical device and method |
-
1988
- 1988-12-22 JP JP63322005A patent/JP2732272B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02168968A (en) | 1990-06-29 |
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