JP2554884B2 - Implantable valve - Google Patents
Implantable valveInfo
- Publication number
- JP2554884B2 JP2554884B2 JP62154062A JP15406287A JP2554884B2 JP 2554884 B2 JP2554884 B2 JP 2554884B2 JP 62154062 A JP62154062 A JP 62154062A JP 15406287 A JP15406287 A JP 15406287A JP 2554884 B2 JP2554884 B2 JP 2554884B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- plate portion
- valve plate
- closed
- living body
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
- A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Ophthalmology & Optometry (AREA)
- Otolaryngology (AREA)
- Anesthesiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は生体内に埋め込んだカテーテル等の流路を開
閉する生体内埋設用バルブに関する。TECHNICAL FIELD The present invention relates to a valve for implanting in a living body, which opens and closes a flow path of a catheter or the like embedded in a living body.
一般に、水頭症等のような脳障害においては頭蓋内髄
液腔に多量の髄液が貯留し、髄液腔が異常に拡大すると
ともに、頭蓋内圧が亢進する。このような場合、第６図
のように脳室41内のカテーテル42を挿入し、頭蓋表上に
埋設したレザーボワ43及びバルブ44等の機能部品、さら
に腹腔カテーテル45を介して脳髄液を腹腔等の低圧側へ
逃がしている。Generally, in a brain disorder such as hydrocephalus, a large amount of cerebrospinal fluid is stored in the intracranial cerebrospinal fluid cavity, the cerebrospinal fluid cavity expands abnormally, and the intracranial pressure increases. In such a case, a catheter 42 in a ventricle 41 is inserted as shown in FIG. 6, and functional parts such as a leather bow 43 and a valve 44 embedded on the surface of the skull, and cerebrospinal fluid through the abdominal cavity catheter 45. It escapes to the low pressure side.
従来、このような目的で使用される生体内埋設用バル
ブとしては第７図に示すバルブ（米国特許No3827439,同
No3769982）が知られている。Conventionally, as a valve for implanting in a living body used for such a purpose, the valve shown in FIG. 7 (US Pat. No. 3827439,
No3769982) is known.
同バルブ50は全体をシリコンゴムによって形成し、イ
ンレット51からオクルーダ（遮断部）52、レザーボワ
（貯留室）53、開閉制御部54を介してアウトレット55に
至る構成を採用している。よって、バルブ機能をなす開
閉制御部54を上から押すことによってボス54aがホール5
4bを塞いで流路を閉じることができるとともに、他方、
オクルーダ52を上から押して流路を遮断し、この後レザ
ーボワ53を上から押せば、その圧力でボス54aを押し上
げ、ホール54bから抜いて流路を開くことができる。The valve 50 is entirely made of silicon rubber, and has a configuration in which an inlet 51 extends to an outlet 55 through an occluder (blocking portion) 52, a leather bow (storage chamber) 53, and an opening / closing control portion 54. Therefore, by pushing the opening / closing control unit 54, which has a valve function, from above, the boss 54a moves to the hole
4b can be closed to close the flow path, while
If the occluder 52 is pressed from above to block the flow path, and then the leather bow 53 is pressed from above, the boss 54a can be pushed up by the pressure and pulled out from the hole 54b to open the flow path.
しかし、上述した従来のバルブ50は次のような問題点
が存在する。However, the conventional valve 50 described above has the following problems.
第一に、ボス54aの括れ部がホール54bに係止して流路
を閉じるため、長期の使用によってボス54a等が減耗し
た場合には弁機能を発揮しなくなるおそれがある等、耐
久性及び信頼性に劣る。First, since the constricted part of the boss 54a closes the flow path by locking the hole 54b, the valve function may not be exhibited when the boss 54a, etc. wears out due to long-term use. Unreliable.
第二に、全体を柔軟に形成するため、埋設したバルブ
を皮膚の上から手で触っても、どのポジションになって
いるか極めてわかりにくい。このため、一部の熟練者の
操作に頼らざるを得ず、緊急時等に適切な処置を施すこ
とができないとともに、操作ミスを生じやすい致命的な
問題がある。Secondly, since the entire structure is made flexible, it is extremely difficult to tell which position it is in even if the embedded valve is touched by hand on the skin. For this reason, there is a fatal problem that some experts have to rely on the operation, and appropriate measures cannot be taken in an emergency or the like, and an operation error is likely to occur.
第三に、閉じる際に比較的大きな力で圧入する必要が
あるとともに、他方、聞く際には操作が著しく複雑とな
る等、操作性に難点がある。Thirdly, there is a problem in operability such that it is necessary to press-fit with a relatively large force when closing, and on the other hand, the operation becomes extremely complicated when listening.
第四に、流路が複雑で狭くなるため、流路が詰まり易
い。Fourthly, since the flow passage is complicated and narrow, the flow passage is easily clogged.
本発明に係る生体内埋設用バルブ１は一方の側に弁体
２を設けたシーソー式の弁プレート部３と、この弁体２
によって開閉される弁座部４と、上記弁プレート部３を
少なくとも開位置P1、望ましくは開位置P1と閉位置P2に
固定可能なストッパ部５を備えて構成したことを特徴と
する。A valve 1 for implanting in a living body according to the present invention includes a seesaw type valve plate portion 3 provided with a valve body 2 on one side, and the valve body 2
The valve seat portion 4 is opened and closed by the valve plate portion 3 and the valve plate portion 3 is provided with a stopper portion 5 that can be fixed at least in the open position P1, preferably in the open position P1 and the closed position P2.
次に、本発明の作用について説明する。 Next, the operation of the present invention will be described.
本発明に係るバルブ１はシーソー機能をもつ弁プレー
ト部３を備えるため、弁プレート部３の一方の側を倒す
ことによって弁座部４を閉じ、他方の側を倒すことによ
って弁座部４を開くことができる。また、弁プレート部
３が閉じた際には弁体２が弁座部４に圧入するととも
に、ストッパ部５によって固定され、開いた際には同様
にストッパ部５によって固定される。Since the valve 1 according to the present invention includes the valve plate portion 3 having the seesaw function, the valve seat portion 4 is closed by tilting one side of the valve plate portion 3 and the valve seat portion 4 is closed by tilting the other side. Can be opened. Further, when the valve plate portion 3 is closed, the valve body 2 is press-fitted into the valve seat portion 4 and is fixed by the stopper portion 5, and when opened, it is similarly fixed by the stopper portion 5.
以下には本発明に係る好適な実施例を図面に基づき詳
細に説明する。Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the drawings.
第１図は本発明に係る生体内埋設用バルブを中央で切
断した状態の斜視図、第２図は一部破断した同バルブの
平面図、第３図は第２図中Ａ−Ａ線断面図、第４図は開
位置における第２図中Ｂ−Ｂ線断面図、第５図は閉位置
における第２図中Ｂ−Ｂ線断面図を示す。FIG. 1 is a perspective view of a valve for implanting in a living body according to the present invention cut at the center, FIG. 2 is a partially cutaway plan view of the valve, and FIG. 3 is a sectional view taken along line AA in FIG. Fig. 4 is a sectional view taken along the line BB in Fig. 2 in the open position, and Fig. 5 is a sectional view taken along the line BB in Fig. 2 in the closed position.
まず、本発明に係るバルブ１の構成について説明す
る。First, the configuration of the valve 1 according to the present invention will be described.
11は例えば硬質の合成樹脂等で形成した細長のベース
プレートである。このベースプレート11の底面はシート
状のシリコンゴムで形成した底面カバー12で覆うととも
に、上面も同じくシリコンゴムで形成した上面カバー13
で覆う。なお、この上面カバー13は中程を上方へ膨出さ
せてベースプレート11上に密閉室14を形成する。Reference numeral 11 is an elongated base plate made of, for example, a hard synthetic resin. The bottom surface of the base plate 11 is covered with a bottom cover 12 made of sheet-like silicon rubber, and the top surface is also made of silicon rubber.
Cover with. The upper surface cover 13 bulges upward in the middle to form a closed chamber 14 on the base plate 11.
また、上面カバー13における長手方向前後位置には密
閉室14にそれぞれ連通する流入パイプ15及び流出パイプ
16を設ける。In addition, an inflow pipe 15 and an outflow pipe that communicate with the closed chamber 14 are provided at front and rear positions in the longitudinal direction of the top cover 13.
16 is provided.
一方、密閉室14内部にはシーソー式の弁プレート部３
を配設する。弁プレート部３は下方が山となるくの字形
に折曲し、その中央を横方向に軸をもつピン17、18によ
って前記ベースプレート11へ回動自在に取付ける。ま
た、弁プレート部３は硬質の合成樹脂等で形成し、横方
向の幅は密閉室14よりも狭く形成して両側を流体が流れ
易いようにする。なお、弁プレート部３は硬質である
が、その上を前記上面カバー13が覆うため生体への影響
は最少限に抑えられる。On the other hand, the seesaw type valve plate portion 3 is provided inside the closed chamber 14.
To arrange. The valve plate portion 3 is bent in a dogleg shape having a mountain at the bottom, and its center is rotatably attached to the base plate 11 by pins 17 and 18 having a shaft in the lateral direction. Further, the valve plate portion 3 is formed of a hard synthetic resin or the like and has a width in the lateral direction narrower than that of the closed chamber 14 so that the fluid easily flows on both sides. Although the valve plate portion 3 is hard, the upper cover 13 covers the valve plate portion 3 so that the influence on the living body can be minimized.
また、弁プレート部３の一方の側（流入パイプ15側）
の下面には円柱状に突出した弁体２を一体的に設けると
ともに、弁プレート部３の他方の側（流出パイプ16側）
には括れ部19を有する係止凸部20を設ける。Also, one side of the valve plate portion 3 (inflow pipe 15 side)
The lower surface of the valve body is integrally provided with a columnar protruding valve body 2, and the other side of the valve plate portion 3 (outflow pipe 16 side)
An engaging protrusion 20 having a constricted portion 19 is provided on the.
他方、弁体２に対向するベースプレート11には例えば
シリコンゴムで形成した弁座部４を取付け、この弁座部
４によって前記密閉室14と流入パイプ15を仕切る。これ
により、弁体２を弁座部４へ挿入した場合には流入パイ
プ15と密閉室14は遮断されるとともに、弁体２を弁座部
４から離脱させた場合には連通状態となる。なお、密閉
室14と流出パイプ16は弁プレート部３がいかなる位置に
あっても連通状態にある。On the other hand, a valve seat portion 4 made of, for example, silicon rubber is attached to the base plate 11 facing the valve body 2, and the valve seat portion 4 separates the closed chamber 14 from the inflow pipe 15. As a result, when the valve body 2 is inserted into the valve seat portion 4, the inflow pipe 15 and the closed chamber 14 are shut off, and when the valve body 2 is disengaged from the valve seat portion 4, a communication state is established. The closed chamber 14 and the outflow pipe 16 are in communication with each other regardless of the position of the valve plate portion 3.
一方、係止凸部20に対向するベースプレート11には同
凸部20が挿入可能な係止凹部21を有する座金22を取付け
る。この座金22には係止凹部21の内部に臨み、かつ内方
へ付勢される離間した一対のストッパバーを有するスプ
リング23を配する。よって、係止凸部20を係止凹部21へ
挿入すれば、括れ部19に前記スプリング23のストッパバ
ーが係止し、両者はクリック式に着脱する前記ストッパ
部５を構成する。On the other hand, a washer 22 having a locking recess 21 into which the projection 20 can be inserted is attached to the base plate 11 facing the locking projection 20. The washer 22 is provided with a spring 23 having a pair of spaced stopper bars facing the inside of the locking recess 21 and biased inward. Therefore, when the locking convex portion 20 is inserted into the locking concave portion 21, the stopper bar of the spring 23 is locked to the constricted portion 19, and both of them constitute the stopper portion 5 which is clickably attached and detached.
なお、図中、24は座金22をベースプレート11にスポッ
ト熔接によって固定するための取付プレート、25は上面
カバー13に肉厚形成した補強部である。In the figure, reference numeral 24 is a mounting plate for fixing the washer 22 to the base plate 11 by spot welding, and 25 is a reinforcing portion formed thickly on the upper surface cover 13.
次に、同バルブ１の機能について説明する。 Next, the function of the valve 1 will be described.
第４図は弁プレート部３の係止凸部20が係止凹部21に
挿入し、括れ部19とスプリング23が係止して開位置P1に
固定されている状態を示す。この場合、弁プレート部３
のシーソー機能によって弁体２は弁座部４から離脱して
いる。よって、流入パイプ15と流出パイプ16は同図中点
線矢印Ｈの経路（第２図及び第４図参照）で相連通す
る。なお、弁プレート部３の弁体２側が上方へ持ち上が
っているため、外部から触れた場合でも開位置P1か否か
を容易、かつ確実に確認できる。FIG. 4 shows a state in which the locking projection 20 of the valve plate portion 3 is inserted into the locking recess 21, and the constricted portion 19 and the spring 23 are locked and fixed at the open position P1. In this case, the valve plate part 3
The valve body 2 is separated from the valve seat portion 4 by the seesaw function of. Therefore, the inflow pipe 15 and the outflow pipe 16 communicate with each other through the path indicated by the dotted arrow H in the figure (see FIGS. 2 and 4). Since the valve body 2 side of the valve plate portion 3 is lifted upward, it is possible to easily and surely confirm whether or not it is at the open position P1 even when it is touched from the outside.
他方、この状態から弁プレート部３の弁体２側を上方
から手で押せば、弁プレート部３は図中時計方向へ所定
角度だけ回転変位し第５図のような閉位置P2の状態に切
換えることができる。この状態では弁体２は弁座部４に
挿入して流路を遮断するとともに、係止凸部20は係止凹
部21から離脱する。この際、係止凸部20の先端がスプリ
ング23に当接して閉位置P2に固定される。この場合でも
弁プレート部３の係止凸部20側が持ち上がっているた
め、外部から閉位置P2であることを容易、かつ確実に確
認できる。On the other hand, if the valve plate 2 side of the valve plate portion 3 is pushed by hand from above in this state, the valve plate portion 3 is rotationally displaced by a predetermined angle in the clockwise direction in the figure to the closed position P2 state as shown in FIG. You can switch. In this state, the valve body 2 is inserted into the valve seat portion 4 to block the flow path, and the locking projection 20 is separated from the locking recess 21. At this time, the tip of the locking projection 20 contacts the spring 23 and is fixed at the closed position P2. Even in this case, since the locking projection 20 side of the valve plate 3 is lifted up, it can be easily and surely confirmed from the outside that the closed position P2 is reached.
このように本バルブ１は原理的に弁体２と弁座部４の
組合わせによってバルブ機能を得るため、構造を単純化
でき、内部流路断面積も可及的に大きくすることができ
るとともに、高さも低くできる。As described above, since the valve 1 has a valve function in principle by combining the valve body 2 and the valve seat portion 4, the structure can be simplified and the internal flow passage cross-sectional area can be increased as much as possible. Also, the height can be lowered.
以上、実施例について詳細に説明したが、本発明はこ
のような実施例に限定されるものではなく、細部の構
成、形状、配列、数量、素材等において本発明の要旨を
逸脱しない範囲で任意に変更実施できる。Although the embodiments have been described in detail above, the present invention is not limited to such embodiments, and any configuration, shape, arrangement, quantity, material, etc. of details can be arbitrarily set without departing from the scope of the present invention. Can be changed to.
このように、本発明に係る生体内埋設用バルブは一方
の側に弁体を設けたシーソー式の弁プレート部によって
弁座部を開閉するようにしたため、次のような効果を得
る。As described above, since the valve for in-vivo implantation according to the present invention opens and closes the valve seat portion by the seesaw type valve plate portion having the valve body provided on one side, the following effects are obtained.
原理的構成が単純なため、常に確実な弁機能を発揮
し、以て、故障が少なく、耐久性に優れるとともに、高
信頼性を得ることができる。Since the principle structure is simple, a reliable valve function is always exhibited, so that there are few failures, excellent durability, and high reliability can be obtained.
シーソー式の弁プレート部を備えるため、開閉操作
が極めて容易となり、確実な操作が保証される。また、
弁プレート部を硬質に形成できるため、開閉ポジション
の確認を確実かつ容易に行うことができ、操作ミスの防
止を図れるとともに、患者等であっても医師の指導によ
り操作することができる。Since the seesaw-type valve plate portion is provided, opening and closing operations are extremely easy and reliable operation is guaranteed. Also,
Since the valve plate portion can be formed to be rigid, the opening / closing position can be surely and easily confirmed, operation mistakes can be prevented, and even a patient or the like can be operated by the guidance of a doctor.
流路を単純化できるとともに、流路を広く設定でき
るため、流路の詰まりを防止し、また、小型化、薄型化
を達成できる。Since the flow channel can be simplified and the flow channel can be set wide, clogging of the flow channel can be prevented, and the size and thickness can be reduced.
第１図：本発明に係る生体内埋設用バルブを中央で切断
した状態の斜視図、 第２図：一部破断した同バルブの平面図、 第３図：第２図中Ａ−Ａ線断面図、 第４図：開位置における第２図中Ｂ−Ｂ線断面図、 第５図：閉位置における第２図中Ｂ−Ｂ線断面図、 第６図：バルブを人体に埋設した状態を示す模式図、 第７図：従来例に係るバルブの縦断正面図。 尚図面中、 1:生体内埋設用バルブ、2:弁体 3:弁プレート部、4:弁座部 5:ストッパ部、P1:開位置FIG. 1 is a perspective view of the in-vivo valve according to the present invention cut at the center, FIG. 2 is a partially cutaway plan view of the valve, and FIG. 3 is a sectional view taken along the line AA in FIG. Fig. 4, Fig. 4: sectional view taken along the line BB in Fig. 2 in the open position, Fig. 5: sectional view taken along the line BB in Fig. 2 in the closed position, Fig. 6 showing a state in which the valve is embedded in the human body. The schematic diagram which shows, FIG. 7: The vertical front view of the valve which concerns on a prior art example. In the drawing, 1: valve for implantation in the body, 2: valve body 3: valve plate part, 4: valve seat part 5: stopper part, P1: open position
Claims (1)
開閉する生体内埋設用バルブにおいて、一方の側に弁体
を設けたシーソー式の弁プレート部と、前記弁体によっ
て開閉される弁座部と、前記弁プレート部を少なくとも
開位置に固定可能なストッパ部を備えたことを特徴とす
る生体内埋設用バルブ。1. A valve for implanting in a living body for opening and closing a flow path of a catheter or the like embedded in a living body, a seesaw type valve plate portion having a valve body on one side, and a valve opened and closed by the valve body. A valve for implanting in a living body, comprising a seat portion and a stopper portion capable of fixing the valve plate portion at least in an open position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62154062A JP2554884B2 (en) | 1987-06-19 | 1987-06-19 | Implantable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62154062A JP2554884B2 (en) | 1987-06-19 | 1987-06-19 | Implantable valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63317161A JPS63317161A (en) | 1988-12-26 |
| JP2554884B2 true JP2554884B2 (en) | 1996-11-20 |
Family
ID=15576069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62154062A Expired - Lifetime JP2554884B2 (en) | 1987-06-19 | 1987-06-19 | Implantable valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2554884B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101920829B1 (en) | 2017-04-26 | 2018-11-21 | 국립암센터 | Auto drainage system of cerebrospinal fluid FOR IMPLANTING SKULL |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5511486B2 (en) * | 2010-04-26 | 2014-06-04 | 康雄 藍原 | Shunt valve for hydrocephalus treatment |
-
1987
- 1987-06-19 JP JP62154062A patent/JP2554884B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101920829B1 (en) | 2017-04-26 | 2018-11-21 | 국립암센터 | Auto drainage system of cerebrospinal fluid FOR IMPLANTING SKULL |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63317161A (en) | 1988-12-26 |
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