JPH01101978A - Flow rate changeable cerebral ventricle shunt - Google Patents
Flow rate changeable cerebral ventricle shuntInfo
- Publication number
- JPH01101978A JPH01101978A JP62260114A JP26011487A JPH01101978A JP H01101978 A JPH01101978 A JP H01101978A JP 62260114 A JP62260114 A JP 62260114A JP 26011487 A JP26011487 A JP 26011487A JP H01101978 A JPH01101978 A JP H01101978A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- chamber
- flow rate
- top wall
- electromagnet
- 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.)
- Granted
Links
- 210000004289 cerebral ventricle Anatomy 0.000 title abstract 2
- 239000000696 magnetic material Substances 0.000 claims abstract description 11
- 230000002861 ventricular Effects 0.000 claims description 20
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000002490 cerebral effect Effects 0.000 abstract description 3
- 210000004761 scalp Anatomy 0.000 description 4
- 210000003625 skull Anatomy 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000003906 hydrocephalus Diseases 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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)
- External Artificial Organs (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水頭症等の手術に用いられる脳室シャントに
関し、特に流量の切替えを行なえるようにした脳室シャ
ントに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventricular shunt used in surgery for hydrocephalus, etc., and particularly to a ventricular shunt that can switch the flow rate.
一般に、脳室シャントは、脳室内へ挿込まれる細管状の
脳室カテーテルと、これにポンプ室のごとき中継室を介
して接続されるチューブ状の送出用カテーテルとで構成
されている。In general, a ventricular shunt is comprised of a thin tube-shaped ventricular catheter inserted into the ventricle of the brain, and a tube-shaped delivery catheter connected to this via a relay chamber such as a pump chamber.
そして、流量の切替えを行なえるように、上記の中継室
と送出用カテーテルとの間に複数の弁室を並列的に介設
されたものが開発されている。In order to switch the flow rate, a device has been developed in which a plurality of valve chambers are interposed in parallel between the above-mentioned relay chamber and the delivery catheter.
ところで、上述のような流量切替式の脳室シャントでは
、並列的に配設された各弁室における弁の開閉操作に熟
練を必要とし、特に押ボタン式の開閉弁では、その開放
操作に手間がかかるという問題点がある。By the way, with the above-mentioned flow rate switching type ventricular shunt, skill is required to open and close the valves in each valve chamber arranged in parallel, and in particular, with a push button type on-off valve, opening and closing the valves is time-consuming. There is a problem that it takes a lot of time.
本発明は、このような問題点の解決をはかろうとするも
ので、弁室内に設けられた弁口から、押ボタン型突起弁
体を簡便な操作で離脱させて、流量の切替えを行なえる
ようにした、流量切替式脳室シャントを提供することを
目的とする。The present invention aims to solve these problems, and allows a push button type protruding valve body to be removed from a valve port provided in a valve chamber with a simple operation to switch the flow rate. The purpose of the present invention is to provide a flow rate switching type ventricular shunt.
このため、本発明の流量切替式脳室シャントは、脳室に
先端部を挿入される脳室カテーテルと、同脳室カテーテ
ルに下部を接続される中継室と、同中継室に並列的に接
続されてそれぞれ可撓性の頂壁を有する複数の弁室と、
これらの弁室に接続された送出用カテーテルとをそなえ
、上記の各弁室内に、上記中継室からの流れを通過させ
て上記送出用カテーテルへ向かわせる弁口が設けられる
とともに、上記弁室の可撓性頂壁の内面に、上記弁口へ
の嵌脱によって上記流れの遮断および流通を切替えうる
押ボタン型突起弁体が形成され、同突起弁体を上記弁口
から離脱させて弁開放状態とすべく、上記頂壁を磁気的
に吸引駆動するための磁性材が、上記頂壁に含まれてい
ることを特徴としている。Therefore, the flow rate switching type ventricular shunt of the present invention has a ventricular catheter whose tip is inserted into the ventricle, a relay chamber whose lower part is connected to the ventricular catheter, and a relay chamber which is connected in parallel to the relay chamber. a plurality of valve chambers each having a flexible top wall;
A delivery catheter connected to these valve chambers is provided, and a valve port is provided in each of the valve chambers to allow the flow from the relay chamber to pass through and be directed to the delivery catheter. A push-button type protruding valve element is formed on the inner surface of the flexible top wall, and the protruding valve element can be inserted into and removed from the valve opening to switch between blocking and circulating the flow, and the protruding valve element is detached from the valve opening to open the valve. It is characterized in that the top wall includes a magnetic material for magnetically attracting and driving the top wall.
上述の本発明の流量切替式脳室シャントでは、中継室に
並列的に接続された複数の弁室における押ボタン型突起
弁体が、弁室の可視性頂壁に含まれた磁性材に対する電
磁石等の吸引力により弁口から容易に抜き出されるよう
になり、これにより流量の切替えが行なわれる。In the above-described flow rate switching type ventricular shunt of the present invention, the push button type protruding valve bodies in the plurality of valve chambers connected in parallel to the relay chamber are connected to the electromagnet for the magnetic material included in the visible top wall of the valve chamber. Due to the suction force such as this, it can be easily pulled out from the valve port, and the flow rate can thereby be switched.
以下、図面により本発明の実施例について説明すると、
第１．２図は本発明の一実施例としての流量切替式脳室
シャントを示すもので、第１図はその縦断面図、第２図
はその平面図である。Hereinafter, embodiments of the present invention will be explained with reference to the drawings.
1.2 shows a flow rate switching type ventricular shunt as an embodiment of the present invention, FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is a plan view thereof.
第１，２図に示すように、シリコン樹脂などの軟質壁か
らなり頂部に脳圧測定用ダイアフラム１′を有する中継
室ｌが設けられて、同中継室１の下部には、脳室に先端
部を挿入される脳室カテーテル２が接続されている。As shown in Figures 1 and 2, a relay chamber 1 is provided with a soft wall made of silicone resin or the like and has a diaphragm 1' for measuring cerebral pressure at the top. A ventricular catheter 2 into which the ventricular section is inserted is connected.
また中継室１の一側に小室状のリザーバｌａが連通して
おり、同リザーバ１ａは、脳室コンプライアンスの測定
や、薬液注入のために用いられるようになっている。Further, a small chamber-like reservoir la is communicated with one side of the relay chamber 1, and the reservoir la is used for measuring ventricular compliance and injecting a drug solution.
さらに中継室１の他側には一対の弁室１ｂ。Further, on the other side of the relay chamber 1, there is a pair of valve chambers 1b.
１ｂが並列的に接続連通されていて、各弁室１ｂには、
中継室ｌからの流れを通過させて送出用カテーテル３へ
向かわせる弁口４が設けられるとともに、同弁口４への
嵌脱によって上記流れの遮断および流通を切替えうる押
ボタン型突起弁体５が、弁室１ｂの可撓性頂壁１ｂ’の
内面に形成されている。1b are connected and communicated in parallel, and each valve chamber 1b has a
A push-button protruding valve body 5 is provided with a valve port 4 that allows the flow from the relay chamber 1 to pass through and directs it to the delivery catheter 3, and can switch between blocking and circulating the flow by fitting and removing the valve port 4. is formed on the inner surface of the flexible top wall 1b' of the valve chamber 1b.
そして、突起弁体５を弁口４から離脱させて弁開放状態
となしうるように、頂ｎｉｂ’を磁気的に吸引するため
の磁性材６が、頂壁１ｂ’の内部に含まれている。なお
、第１図中の符号７は頭蓋骨を示し、８は頭皮を示して
いる。A magnetic material 6 for magnetically attracting the top nib' is included inside the top wall 1b' so that the protruding valve body 5 can be separated from the valve port 4 and the valve can be opened. . In addition, the code|symbol 7 in FIG. 1 shows a skull, and 8 shows a scalp.
さらに、磁性材６を磁気的に吸引する電磁石付き操作器
９が設けられており、同操作器９は、弁室１ｂの周囲を
覆うように配置されるフレーム９ａと、同フレーム９ａ
の内部に装着された電磁石９ｂとをそなえている。Furthermore, an operating device 9 with an electromagnet that magnetically attracts the magnetic material 6 is provided, and the operating device 9 includes a frame 9a disposed so as to cover the periphery of the valve chamber 1b, and a frame 9a arranged to cover the periphery of the valve chamber 1b.
It has an electromagnet 9b mounted inside.
フレーム９ａの下縁が弁室１ｂの周囲の頭皮８を介して
本シャント上に載置されてから、電磁石９ｂに各端子９
ｃ、９ｄを介して通電が行なわれると、第１図に示すご
とく磁性材６が電磁石に吸引されるので、弁口４に嵌入
していた押ボタン型突起弁体５は、頂壁１ｂ′と共に上
方へ引上げられ、これに伴い突起弁体５は弁口４から離
脱し、弁開放状態となる。After the lower edge of the frame 9a is placed on the main shunt through the scalp 8 around the valve chamber 1b, each terminal 9 is connected to the electromagnet 9b.
When electricity is applied through ports 9c and 9d, the magnetic material 6 is attracted to the electromagnet as shown in FIG. At the same time, the protruding valve body 5 is pulled upward, and accordingly, the protruding valve body 5 is separated from the valve port 4, and the valve is in an open state.
第２図に示す一対の突起弁体５，５を共に開放状態とす
れば、流量は最大となり、突起弁体５の一方を閉じれば
流量が半減するようになる。When the pair of protruding valve bodies 5, 5 shown in FIG. 2 are both open, the flow rate becomes maximum, and when one of the protruding valve bodies 5 is closed, the flow rate is halved.
また一対の突起弁体５，５で閉じられる各弁口４を相互
に異なる大きさとすれば、そのいずれか一方を閉状態と
することにより、さらに、きめ細かく流量の切替制御を
行なうことができる。Furthermore, if the valve ports 4 that are closed by the pair of protruding valve bodies 5, 5 are made to have different sizes, the flow rate can be controlled more precisely by closing one of them.
なお、弁口４を突起弁体５で閉じて弁閉鎖状態とする際
には、操作器９が取外され、弁室１ｂの頂壁１ｂ’を頭
皮８の上方から指で押し下げることにより、突起弁体５
を弁口４へ嵌入させるようにする。Note that when closing the valve port 4 with the protruding valve body 5 to bring the valve into the closed state, the operating device 9 is removed and the top wall 1b' of the valve chamber 1b is pushed down with a finger from above the scalp 8. Protruding valve body 5
into the valve port 4.
また磁性材６の吸引を強力に行なう場合は、この磁性材
６を永久磁石とし、その上面の極性と異なる極性とした
電磁石９ｂの下端で吸引操作すればよく、弁開放状態と
なってからは、電磁石９ｂを、その下端の極性が上記永
久磁石の上面の極性と同じになるように、かつ、やや弱
く励磁して、上記永久磁石から離反させるようにすれば
よい。In addition, if the magnetic material 6 is to be strongly attracted, the magnetic material 6 may be a permanent magnet, and the attraction operation may be performed using the lower end of the electromagnet 9b, which has a polarity different from that of the upper surface. The electromagnet 9b may be slightly excited so that the polarity of its lower end is the same as the polarity of the upper surface of the permanent magnet, and the electromagnet 9b is moved away from the permanent magnet.
以上詳述したように、本発明の流量切替式脳室シャント
によれば、流量切替えのための各弁室のおける押ボタン
型突起弁体が、同弁体と一体の弁室頂壁に含まれた磁性
材を磁力で吸引駆動することにより、きわめて簡便に開
放操作されるようになり、これにより流量の切替えが熟
練を要することなく的確に行なわれるようになるのであ
る。As described in detail above, according to the flow rate switching type ventricular shunt of the present invention, the push button type protruding valve body in each valve chamber for flow rate switching is included in the valve chamber top wall that is integrated with the valve body. By attracting and driving the magnetic material with magnetic force, the opening operation becomes extremely simple, and thereby the flow rate can be changed accurately without requiring any skill.
第１．２図は本発明の一実施例としての流量切替式脳室
シャントを示すもので、第１図はその縦断面図、第２図
はその平面図である。
１・・中継室、１′・・脳圧測定用ダイアフラム、１ａ
・・リザーバ、ｌｂ・・弁室、１ｂ′・・弁室の可撓性
頂壁、２・・脳室カテーテル、３・・送出用カテーテル
、４・・弁口、５・・押ボタン型突起弁体、６・・磁性
材、７・・頭蓋骨、β・・頭皮、９・・操作器、９ａ・
・フレーム、９ｂ・・電磁石、９ｃ、９ｄ・・端子。
代理人 弁理士 飯 沼 義 彦1.2 shows a flow rate switching type ventricular shunt as an embodiment of the present invention, FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is a plan view thereof. 1...Relay room, 1'...Diaphragm for cerebral pressure measurement, 1a
... Reservoir, lb.. Valve chamber, 1b'.. Flexible top wall of valve chamber, 2.. Ventricular catheter, 3.. Delivery catheter, 4.. Valve opening, 5.. Push button type protrusion. Valve body, 6... Magnetic material, 7... Skull, β... Scalp, 9... Operating device, 9a...
・Frame, 9b... Electromagnet, 9c, 9d... Terminal. Agent Patent Attorney Yoshihiko Iinuma
Claims (1)
テーテルに下部を接続される中継室と、同中継室に並列
的に接続されてそれぞれ可撓性の頂壁を有する複数の弁
室と、これらの弁室に接続された送出用カテーテルとを
そなえ、上記の各弁室内に、上記中継室からの流れを通
過させて上記送出用カテーテルへ向かわせる弁口が設け
られるとともに、上記弁室の可撓性頂壁の内面に、上記
弁口への嵌脱によって上記流れの遮断および流通を切替
えうる押ボタン型突起弁体が形成され、同突起弁体を上
記弁口から離脱させて弁開放状態とすべく、上記頂壁を
磁気的に吸引駆動するための磁性材が、上記頂壁に含ま
れていることを特徴とする、流量切替式脳室シャント。A ventricular catheter whose tip end is inserted into the ventricle, a relay chamber whose lower part is connected to the ventricular catheter, and a plurality of valves connected in parallel to the relay chamber and each having a flexible top wall. chambers and delivery catheters connected to these valve chambers, and each valve chamber is provided with a valve port for allowing flow from the relay chamber to pass through and directed to the delivery catheter; A push button type protruding valve element is formed on the inner surface of the flexible top wall of the valve chamber, and the push button type protruding valve element can switch between blocking and circulating the flow by fitting and disengaging the valve opening, and the protruding valve element is removed from the valve opening. A flow rate switching type ventricular shunt, characterized in that the top wall includes a magnetic material for magnetically attracting and driving the top wall to open the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62260114A JPH01101978A (en) | 1987-10-15 | 1987-10-15 | Flow rate changeable cerebral ventricle shunt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62260114A JPH01101978A (en) | 1987-10-15 | 1987-10-15 | Flow rate changeable cerebral ventricle shunt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01101978A true JPH01101978A (en) | 1989-04-19 |
| JPH0365188B2 JPH0365188B2 (en) | 1991-10-09 |
Family
ID=17343477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62260114A Granted JPH01101978A (en) | 1987-10-15 | 1987-10-15 | Flow rate changeable cerebral ventricle shunt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01101978A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018515260A (en) * | 2015-05-18 | 2018-06-14 | スミス アンド ネフュー ピーエルシーＳｍｉｔｈ ＆ Ｎｅｐｈｅｗ Ｐｕｂｌｉｃ Ｌｉｍｉｔｅｄ Ｃｏｍｐａｎｙ | Negative pressure closure therapy device and method |
| US11389582B2 (en) | 2017-09-29 | 2022-07-19 | T.J. Smith And Nephew, Limited | Negative pressure wound therapy apparatus with removable panels |
| US11395870B2 (en) | 2017-02-15 | 2022-07-26 | Smith & Nephew Asia Pacific Pte. Limited | Negative pressure wound therapy apparatuses and methods for using the same |
| US11426509B2 (en) | 2015-08-13 | 2022-08-30 | Smith & Nephew, Inc. | Systems and methods for applying reduced pressure therapy |
| US11559619B2 (en) | 2018-04-30 | 2023-01-24 | Smith & Nephew Asia Pacific Pte. Limited | Systems and methods for controlling dual mode negative pressure wound therapy apparatus |
| US11642450B2 (en) | 2017-12-29 | 2023-05-09 | T.J. Smith And Nephew, Limited | Negative pressure wound therapy apparatuses and methods for using the same |
| US11744932B2 (en) | 2018-05-23 | 2023-09-05 | T.J.Smith And Nephew, Limited | Systems and methods for determining blockages in a negative pressure wound therapy system |
| US11806468B2 (en) | 2018-03-19 | 2023-11-07 | T.J.Smith And Nephew, Limited | Securing control of settings of wound therapy apparatuses |
| US11955829B2 (en) | 2018-04-30 | 2024-04-09 | Smith & Nephew Asia Pacific Pte. Limited | Power source charging for negative pressure wound therapy apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50117280A (en) * | 1972-10-30 | 1975-09-13 | ||
| JPS5330954A (en) * | 1976-09-04 | 1978-03-23 | Shiroyama Seisakusho Kk | Method of welding flat angular band |
| JPS62144665A (en) * | 1985-12-20 | 1987-06-27 | 株式会社 日本エム・デイ・エム | Flow amount change-over type ventricle shunt |
-
1987
- 1987-10-15 JP JP62260114A patent/JPH01101978A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50117280A (en) * | 1972-10-30 | 1975-09-13 | ||
| JPS5330954A (en) * | 1976-09-04 | 1978-03-23 | Shiroyama Seisakusho Kk | Method of welding flat angular band |
| JPS62144665A (en) * | 1985-12-20 | 1987-06-27 | 株式会社 日本エム・デイ・エム | Flow amount change-over type ventricle shunt |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018515260A (en) * | 2015-05-18 | 2018-06-14 | スミス アンド ネフュー ピーエルシーＳｍｉｔｈ ＆ Ｎｅｐｈｅｗ Ｐｕｂｌｉｃ Ｌｉｍｉｔｅｄ Ｃｏｍｐａｎｙ | Negative pressure closure therapy device and method |
| US10973693B2 (en) | 2015-05-18 | 2021-04-13 | Smith & Nephew Plc | Negative pressure wound therapy apparatus and methods |
| US11426509B2 (en) | 2015-08-13 | 2022-08-30 | Smith & Nephew, Inc. | Systems and methods for applying reduced pressure therapy |
| US11395870B2 (en) | 2017-02-15 | 2022-07-26 | Smith & Nephew Asia Pacific Pte. Limited | Negative pressure wound therapy apparatuses and methods for using the same |
| US11389582B2 (en) | 2017-09-29 | 2022-07-19 | T.J. Smith And Nephew, Limited | Negative pressure wound therapy apparatus with removable panels |
| US11642450B2 (en) | 2017-12-29 | 2023-05-09 | T.J. Smith And Nephew, Limited | Negative pressure wound therapy apparatuses and methods for using the same |
| US11806468B2 (en) | 2018-03-19 | 2023-11-07 | T.J.Smith And Nephew, Limited | Securing control of settings of wound therapy apparatuses |
| US11559619B2 (en) | 2018-04-30 | 2023-01-24 | Smith & Nephew Asia Pacific Pte. Limited | Systems and methods for controlling dual mode negative pressure wound therapy apparatus |
| US11955829B2 (en) | 2018-04-30 | 2024-04-09 | Smith & Nephew Asia Pacific Pte. Limited | Power source charging for negative pressure wound therapy apparatus |
| US11744932B2 (en) | 2018-05-23 | 2023-09-05 | T.J.Smith And Nephew, Limited | Systems and methods for determining blockages in a negative pressure wound therapy system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0365188B2 (en) | 1991-10-09 |
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