JPH07299150A - Intracorporeal coil for percutaneous charging system for pace maker - Google Patents
Intracorporeal coil for percutaneous charging system for pace makerInfo
- Publication number
- JPH07299150A JPH07299150A JP6115887A JP11588794A JPH07299150A JP H07299150 A JPH07299150 A JP H07299150A JP 6115887 A JP6115887 A JP 6115887A JP 11588794 A JP11588794 A JP 11588794A JP H07299150 A JPH07299150 A JP H07299150A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- telemeter
- charging
- core
- body coil
- 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.)
- Pending
Links
Landscapes
- Electrotherapy Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はペースメーカーに経皮的
に電力を伝送し、ペースメーカー内部に収納された電池
を充電するペースメーカー用経皮的電力伝送システムに
適合するペースメーカーにおいて、ペースメーカーと体
外に設置される制御装置の間で情報のやりとりを行うた
めのテレメータシステムをそなえたペースメーカーに関
し、特にその経皮的電力伝送を行う為のペースメーカー
内部に収納される充電用体内コイルと、テレメータを行
うためにペースメーカー内部に収納されるテレメータ用
体内コイルの合理的な形状に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a pacemaker adapted to transcutaneously transmit power to a pacemaker and charge a battery housed inside the pacemaker. Pacemaker equipped with a telemeter system for exchanging information between control devices, especially for performing a telemeter and a charging internal coil housed inside the pacemaker for transcutaneous power transmission. The present invention relates to a rational shape of a telemeter internal coil housed inside a pacemaker.
【０００２】[0002]
【従来の技術】従来この種の装置は図３に示すように、
体外に設置される１次電池４と、１次電池４の電圧を昇
圧する昇圧回路５と、昇圧回路５で発生するノイズの外
部への流出を防ぐノイズフィルタ回路６と、昇圧回路５
の出力する直流電圧を高周波の交流電圧に変換するイン
バータ回路７と、インバータ回路７で駆動されるコンデ
ンサＣ３と経皮トランス８の１次コイルである充電用体
外コイルＬ１からなる直列回路と、充電用体外コイルＬ
１の発生する磁束を皮膚を介して受信する経皮トランス
８の２次コイルである充電用体内コイルＬ２と、充電用
体内コイルＬ２に発生した高周波の交流電圧を整流して
直流に変換する整流回路９と、整流回路９の出力電圧を
平滑するコンデンサＣ４と、負荷１０即ちペースメーカ
ーの電子回路に電力を供給する蓄電池１１と、２次コイ
ルＬ２を整流回路９から切り離すリードスイッチ１２か
ら構成されていた。2. Description of the Related Art Conventionally, an apparatus of this type has been shown in FIG.
Primary battery 4 installed outside the body, booster circuit 5 for boosting the voltage of primary battery 4, noise filter circuit 6 for preventing noise generated in booster circuit 5 from flowing out, and booster circuit 5
Inverter circuit 7 for converting the DC voltage output by the AC voltage into a high-frequency AC voltage, a series circuit including a capacitor C3 driven by the inverter circuit 7 and a charging external coil L1 that is a primary coil of the transcutaneous transformer 8, and charging. Extracorporeal coil L
Charging body coil L2 that is a secondary coil of transcutaneous transformer 8 that receives the magnetic flux generated by No. 1 through the skin, and rectification that rectifies the high-frequency AC voltage generated in charging body coil L2 and converts it to DC. It includes a circuit 9, a capacitor C4 that smoothes the output voltage of the rectifier circuit 9, a storage battery 11 that supplies electric power to the load 10, that is, an electronic circuit of the pacemaker, and a reed switch 12 that disconnects the secondary coil L2 from the rectifier circuit 9. It was
【０００３】このうち、１次電池４と昇圧回路５とノイ
ズフィルタ回路６とインバータ回路７とコンデンサＣ３
と経皮トランス８の１次コイルＬ１は体外に設置され、
経皮トランス８の２次コイルＬ２とリードスイッチ１２
と整流回路９とコンデンサＣ４と蓄電池１１は体内に埋
め込まれるペースメーカーの内部に収納される。Of these, the primary battery 4, the booster circuit 5, the noise filter circuit 6, the inverter circuit 7, and the capacitor C3.
And the primary coil L1 of the transcutaneous transformer 8 is installed outside the body,
Secondary coil L2 and reed switch 12 of transcutaneous transformer 8
The rectifier circuit 9, the capacitor C4, and the storage battery 11 are housed inside a pacemaker embedded in the body.
【０００４】また、コンデンサＣ４と蓄電池１１の間に
は電流検出用の抵抗Ｒが挿入されており、Ｒの両端の電
圧と蓄電池１１の電圧はペースメーカー内部に設置され
る体内テレメータ回路１３に入力されている。体内テレ
メータ回路１３はこれらの電圧、電流情報を適切な信号
に変換し、ペースメーカー内部に設けられたテレメータ
用体内コイルＬ４を介して体外に設置されるテレメータ
用体外コイルＬ３に伝送する。テレメータ用体外コイル
Ｌ３に伝えられた情報は体外テレメータ回路１４にて適
切な信号に変換され、インバータ制御回路１５および充
電制御回路１６を通じて表示回路、警報回路、操作回路
等からなる回路１７に伝えられる。A resistor R for current detection is inserted between the capacitor C4 and the storage battery 11, and the voltage across R and the voltage of the storage battery 11 are input to an internal telemeter circuit 13 installed inside the pacemaker. ing. The in-body telemeter circuit 13 converts these voltage and current information into appropriate signals, and transmits the signals to the in-body telemeter coil L3 provided outside the body via the in-vehicle telemeter coil L4 provided inside the pacemaker. The information transmitted to the extracorporeal telemeter coil L3 is converted into an appropriate signal by the extracorporeal telemeter circuit 14, and is transmitted to the circuit 17 including a display circuit, an alarm circuit, an operation circuit, etc. through the inverter control circuit 15 and the charge control circuit 16. .
【０００５】[0005]
【発明が解決しようとする課題】図３に示すように、ペ
ースメーカー内部に収納される充電用体内コイルＬ２と
テレメータ用体内コイルＬ４はそれぞれ個別に構成され
ているため、ペースメーカー内部への収納が合理的に実
施できず、ペースメーカーの寸法を大きくする要因とな
っていた。また、充電用コイルＬ１とＬ２、テレメータ
用コイルＬ３とＬ４はそれぞれ皮膚を介して向かい合っ
て設置されるが、特にテレメータ用コイルＬ３とＬ４は
充電用コイルＬ１とＬ２に比べて寸法が小さいため、わ
ずかの位置ずれでテレメータ用体内コイルＬ４からテレ
メータ用体外コイルＬ３への情報の伝達に支障をきたし
ていた。As shown in FIG. 3, since the charging internal coil L2 and the telemeter internal coil L4 housed inside the pacemaker are individually configured, they can be housed inside the pacemaker reasonably. It was not possible to implement it, which was a factor to increase the size of the pacemaker. Further, the charging coils L1 and L2, and the telemeter coils L3 and L4 are installed to face each other through the skin. Especially, since the telemeter coils L3 and L4 have smaller dimensions than the charging coils L1 and L2, Even a slight misalignment hinders the transmission of information from the telemeter internal coil L4 to the telemeter external coil L3.
【０００６】[0006]
【課題を解決するための手段】この発明は上記した課題
を解決するためになされたものであり、その構成は電力
を受電する充電用体内コイルＬ２を、中心部に穴のあい
た渦巻き状に巻き線し、その中心部の穴の部分に情報を
送受信するテレメータ用体内コイルＬ４を配置するもの
である。また、上記体内コイルの裏面に薄い円盤状のコ
アを張り付け、そのコアを少なくとも２層以上とし、そ
のうち少なくとも１層以上を充電のための電力の伝送に
適した周波数特性を持つものとし、他の１層以上をテレ
メータの動作周波数に適した特性を持つものとするもの
である。以上の構成により充電用体内コイルＬ２とテレ
メータ用体内コイルＬ４を一体形の形状とすることがで
き、コイルＬ２とコイルＬ４のペースメーカー内部への
収納を容易ならしめ、ペースメーカーを小形のものとす
ることができる。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a structure in which a charging internal coil L2 for receiving electric power is wound in a spiral shape having a hole in the center thereof. A telemeter internal coil L4 for transmitting and receiving information is arranged in a hole at the center of the line. In addition, a thin disk-shaped core is attached to the back surface of the body coil, and the core has at least two layers, and at least one layer has frequency characteristics suitable for transmission of electric power for charging. One or more layers have characteristics suitable for the operating frequency of the telemeter. With the above configuration, the charging internal coil L2 and the telemeter internal coil L4 can be formed in an integral shape, and the coils L2 and L4 can be easily stored in the pacemaker and the pacemaker can be made small. You can
【０００７】また、前記充電のための電力の伝送に適し
た周波数特性を持つコアとテレメータの動作周波数に適
した特性を持つコアを同一寸法とすることにより、体外
のコイルと体内のコイルに位置ずれが生じた時も充分な
テレメータリングが可能となる。The core having the frequency characteristic suitable for the transmission of the electric power for charging and the core having the characteristic suitable for the operating frequency of the telemeter have the same size, so that the coil outside the body and the coil inside the body are positioned. Sufficient telemetering is possible even when a displacement occurs.
【０００８】[0008]
【実施例】以下、この発明のペースメーカー用経皮的充
電システム用体内コイルの実施例を図１または図２に基
づいて説明するが、この発明に係るペースメーカー用経
皮的充電システムは基本的に図３に示す回路図と同一の
ものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the body coil for a percutaneous charging system for a pacemaker according to the present invention will be described below with reference to FIG. 1 or 2. The transcutaneous charging system for a pacemaker according to the present invention is basically the same. It is the same as the circuit diagram shown in FIG.
【０００９】図１に本発明の一実施例を示す。電力を受
電する充電用体内コイルＬ２を中心部に穴のあいた外径
ｌ1が３０ｍｍの渦巻き状に巻き線し、その中心部の穴
の部分に情報を送受信するテレメータ用体内コイルＬ４
を直径ｌ2が１０ｍｍの渦巻き状に配置し、体内コイル
Ｌ２とＬ４の裏面に直径３０ｍｍの薄い円盤状のコア１
を張り付け、そのコア１を３層とし、そのうち２層を充
電のための電力の伝送に適した周波数特性を持つ充電用
のコア２とし、他の１層をテレメータの動作周波数に適
した特性を持つテレメータ用のコア３としている。FIG. 1 shows an embodiment of the present invention. An internal coil L4 for a telemeter, which has an internal coil L2 for charging and which receives electric power, is spirally wound with a hole having an outer diameter l 1 of 30 mm in the center, and transmits / receives information to / from the hole in the central part.
Are arranged in a spiral shape having a diameter l 2 of 10 mm, and a thin disk-shaped core 1 having a diameter of 30 mm is provided on the back surface of the body coils L2 and L4
A core 1 for charging which has a frequency characteristic suitable for transmission of electric power for charging, and the other one layer has characteristics suitable for the operating frequency of the telemeter. It is the core 3 for the telemeter that it has.
【００１０】このように体内コイルを構成することによ
り、充電用体内コイルＬ２とテレメータ用体内コイルＬ
４を一体形の形状とすることができ、ペースメーカー内
部への収納を容易ならしめ、ペースメーカーを小形のも
のとすることができた。また、テレメータコイルＬ４は
直径１０ｍｍと小形であるが、テレメータの動作周波数
に適した周波数特性を持つテレメータ用のコア３は３０
ｍｍの直径を持っているので体外コイルと多少の位置ず
れが発生しても充分良好に情報を伝達することができ
る。By constructing the body coil in this way, the body coil L2 for charging and the body coil L for telemetry are provided.
4 could be made into an integral shape, and it was easy to store it inside the pacemaker, and the pacemaker could be made compact. The telemeter coil L4 has a small diameter of 10 mm, but the telemeter core 3 having a frequency characteristic suitable for the operating frequency of the telemeter is 30 mm.
Since it has a diameter of mm, information can be transmitted sufficiently satisfactorily even if a slight displacement from the extracorporeal coil occurs.
【００１１】図２に本発明の他の実施例を示す。電力の
受電に当たっては大きな磁束が必要となるので、図１の
コアの配置ではテレメータ用のコア３に大きな磁束が発
生し、コア３を飽和に至らしめる場合がある。そこで、
図２の実施例ではテレメータ用のコア３を充電用のコア
２の裏面、すなわち充電用体内コイルＬ２から遠い面に
配置し、テレメータ用のコア３の飽和を防いでいる。ま
た、充電用のコア２には中央に穴を設け、その穴の部分
に収まるようにテレメータ用体内コイルＬ４を設けてい
る。このようにテレメータ用体内コイルＬ４を配置する
ことにより、テレメータ用体内コイルＬ４により発生す
る磁束を効果的にテレメータ用のコア３に伝えることが
できる。FIG. 2 shows another embodiment of the present invention. Since a large magnetic flux is required to receive electric power, in the arrangement of the cores shown in FIG. 1, a large magnetic flux may be generated in the telemeter core 3 and the core 3 may be saturated. Therefore,
In the embodiment of FIG. 2, the telemeter core 3 is arranged on the back surface of the charging core 2, that is, on the surface far from the in-charge coil L2 to prevent the telemeter core 3 from being saturated. Further, the charging core 2 is provided with a hole at the center thereof, and a telemeter internal coil L4 is provided so as to fit in the hole. By arranging the telemeter internal coil L4 in this way, the magnetic flux generated by the telemeter internal coil L4 can be effectively transmitted to the telemeter core 3.
【００１２】なお、上記した各実施例では一例として充
電用体内コイルＬ２の渦巻きの直径ｌ1を３０ｍｍ、テ
レメータ用体内コイルＬ４の渦巻きの直径ｌ2を１０ｍ
ｍとしたが、本発明が適用できるコイルの渦巻きの直径
はこれに限られず、種々の大きさのものに適用すること
ができる。In each of the embodiments described above, as an example, the spiral diameter l 1 of the internal coil L2 for charging is 30 mm and the spiral diameter l 2 of the internal coil L4 for telemeter is 10 m.
Although the diameter of the spiral of the coil to which the present invention can be applied is not limited to this, the present invention can be applied to various sizes.
【００１３】また、上記の実施例ではコイル充電用体内
コイルＬ２、テレメータ用体内コイルＬ４、及びコアの
形状は円形としたが、収納スペースの形状に合わせて、
例えば楕円形、長方形など円形以外の形状を採用するこ
ともできる。Further, although the coil charging internal coil L2, the telemeter internal coil L4, and the core are circular in the above-mentioned embodiments, according to the shape of the storage space,
For example, a shape other than a circle such as an ellipse or a rectangle may be adopted.
【００１４】また、本発明は主としてペースメーカーへ
の径皮的電力伝送を目的としたものであるが、例えば携
帯形の電気機器のように外部から機器への電力の伝送と
情報のやりとりを必要とするペースメーカー以外の機器
に対しても適用することができる。Further, although the present invention is mainly intended for the transmission of electric power to the pacemaker, it requires transmission of electric power from the outside to the equipment and exchange of information such as portable electric equipment. It can also be applied to devices other than pacemakers.
【００１５】[0015]
【発明の効果】上記のように、ペースメーカー用経皮的
充電システムにおいて、電力を受電する充電用体内コイ
ルを、中心部に穴のあいた渦巻き状に巻き線し、その中
心部の穴の部分に情報を送受信するテレメータ用体内コ
イルを配置する。あるいはさらに体内コイルの裏面に薄
い円盤状のコアを張り付け、そのコアを少なくとも２層
以上とし、そのうち少なくとも１層以上を充電のための
電力の伝送に適した周波数特性を持つものとし、他の１
層以上をテレメータの動作周波数に適した特性を持つも
のとすることにより、電力を受電する充電用体内コイル
と情報を送受信するテレメータ用体内コイルを一体形の
形状とすることができ、これらのコイルのペースメーカ
ー内部への収納を容易ならしめ、ペースメーカーを小型
のものとすることができる。As described above, in the percutaneous charging system for a pacemaker, an internal coil for charging which receives electric power is wound in a spiral shape having a hole at the center, and the hole is provided at the center. A telemeter internal coil for transmitting and receiving information is arranged. Alternatively, a thin disk-shaped core is further attached to the back surface of the body coil, and the core has at least two layers, and at least one layer has frequency characteristics suitable for transmitting electric power for charging.
By making the layers and above have characteristics suitable for the operating frequency of the telemeter, the internal coil for charging that receives electric power and the internal coil for telemeter that transmits and receives information can be made into an integrated shape. The pacemaker can be made compact because it can be easily stored inside the pacemaker.
【００１６】さらに上記円盤状のコアにおいて、充電の
ための電力の伝送に適した周波数特性を持つものと、テ
レメータの動作周波数に適した特性を持つものを同一寸
法としたことにより、体外コイルと多少の位置ずれが発
生しても充分良好に情報を伝達することができるので、
ペースメーカー用経皮的電力伝送システムに適合するペ
ースメーカーの著しい性能の向上を得ることができる。Further, in the above disk-shaped core, one having a frequency characteristic suitable for transmission of electric power for charging and one having a characteristic suitable for the operating frequency of the telemeter are made to have the same size, so that an external coil is provided. Information can be transmitted satisfactorily even if a slight displacement occurs,
Significant performance enhancements for pacemakers compatible with percutaneous power transfer systems for pacemakers can be obtained.
【図１】この発明の一実施例を示す体内コイルの中央断
面図および底面図である。FIG. 1 is a central sectional view and a bottom view of a body coil showing an embodiment of the present invention.
【図２】この発明の他の実施例を示す体内コイルの中央
断面図および底面図である。FIG. 2 is a central cross-sectional view and a bottom view of a body coil showing another embodiment of the present invention.
【図３】ペースメーカー用経皮的充電システムの回路図
である。FIG. 3 is a circuit diagram of a percutaneous charging system for a pacemaker.
Ｌ１ 充電用体外コイル Ｌ２ 充電用体内コイル Ｌ３ テレメータ用体外コイル Ｌ４ テレメータ用体内コイル Ｃ１，Ｃ４ コンデンサ Ｒ 抵抗 １ コア ２ 充電用のコア ３ テレメータ用のコア ４ １次電池 ５ 昇圧回路 ６ ノイズフィルタ回路 ７ インバータ回路 ８ 経皮トランス ９ 整流回路 １０ 負荷 １１ 蓄電池 １２ リードスイッチ １３ 体内テレメータ回路 １４ 体外テレメータ回路 １５ インバータ制御回路 １６ 充電制御回路 １７ 表示・警報・操作回路 L1 External coil for charging L2 Internal coil for charging L3 External coil for telemeter L4 Internal coil for telemeter C1, C4 Capacitor R resistance 1 Core 2 Core for charging 3 Core for telemeter 4 Primary battery 5 Booster circuit 6 Noise filter circuit 7 Inverter circuit 8 Transcutaneous transformer 9 Rectifier circuit 10 Load 11 Storage battery 12 Reed switch 13 Internal telemeter circuit 14 External telemeter circuit 15 Inverter control circuit 16 Charge control circuit 17 Display / alarm / operation circuit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前島 靖 大阪府大阪市西淀川区御幣島１丁目12番22 号田淵電機株式会社内 (72)発明者 平地 克也 神奈川県足柄上郡中井町井ノ口1500番地 株式会社カージオペーシングリサーチ・ラ ボラトリー内 (72)発明者 真嶋 政文 神奈川県足柄上郡中井町井ノ口1500番地 株式会社カージオペーシングリサーチ・ラ ボラトリー内 (72)発明者 桑名 宏二 神奈川県足柄上郡中井町井ノ口1500番地 株式会社カージオペーシングリサーチ・ラ ボラトリー内 (72)発明者 西村 敏博 大分県大分市スカイタウン高崎２−19−３ ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasushi Maejima 1-12-22 Minejima, Nishiyodogawa-ku, Osaka-shi, Osaka Prefecture Tabuchi Electric Co., Ltd. Geopacing Research Laboratory (72) Inventor Masafumi Majima 1500 Inoguchi, Nakai-cho, Ashigagami-gun, Kanagawa Prefecture Car Geopacing Research Laboratory (72) Inventor Koji Kuwana 1500 Inoguchi, Nakai-cho, Ashigagami-gun, Kanagawa Car Co., Ltd. Geopacing Research Laboratory (72) Inventor Toshihiro Nishimura 2-19-3 Takasaki, Sky Town, Oita City, Oita Prefecture
Claims (5)
用いる体内コイルにおいて、電力を受電する充電用体内
コイルを、中心部に穴のあいた渦巻き状に巻き線し、そ
の中心部の穴の部分に情報を送受信するテレメータ用体
内コイルを配置したことを特徴とする体内コイル。1. A body coil for use in a percutaneous charging system for a pacemaker, wherein a body coil for charging which receives electric power is wound in a spiral shape having a hole in the center, and information is provided in the hole portion of the center. An in-body coil for arranging an in-body coil for a telemeter for transmitting and receiving.
円盤状のコアを張り付け、そのコアを少なくとも２層以
上とし、そのうち少なくとも１層以上を充電のための電
力の伝送に適した周波数特性を持つものとし、他の１層
以上をテレメータの動作周波数に適した特性を持つもの
としたことを特徴とする請求項１記載の体内コイル。2. A thin disk-shaped core is attached to the back surface of the body coil according to claim 1, and the core has at least two layers, of which at least one layer has a frequency characteristic suitable for transmission of electric power for charging. 2. The in-body coil according to claim 1, wherein at least one of the other layers has characteristics suitable for the operating frequency of the telemeter.
充電のための電力の伝送に適した周波数特性を持つもの
と、テレメータの動作周波数に適した特性を持つものを
同一寸法としたことを特徴とする請求項２記載の体内コ
イル。3. The disk-shaped core according to claim 2, wherein
The body coil according to claim 2, wherein one having a frequency characteristic suitable for transmission of electric power for charging and one having a characteristic suitable for an operating frequency of the telemeter have the same size.
た円盤状のコアにおいて、コイルから遠い位置のコアを
テレメータ用のコアとし、コイルに近いコアを充電用の
コアとしたことを特徴とする請求項２または請求項３記
載の体内コイル。4. The laminated disk-shaped core according to claim 2 or 3, wherein the core located far from the coil is a telemeter core, and the core close to the coil is a charging core. The body coil according to claim 2 or 3.
電用のコアの中央部に穴を設け、その穴の内部にテレメ
ータ用のコイルを配置したことを特徴とする請求項４記
載の体内コイル。5. The body coil according to claim 4, wherein a hole is provided in a central portion of a core for charging, and a telemeter coil is arranged inside the hole. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6115887A JPH07299150A (en) | 1994-05-02 | 1994-05-02 | Intracorporeal coil for percutaneous charging system for pace maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6115887A JPH07299150A (en) | 1994-05-02 | 1994-05-02 | Intracorporeal coil for percutaneous charging system for pace maker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07299150A true JPH07299150A (en) | 1995-11-14 |
Family
ID=14673653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6115887A Pending JPH07299150A (en) | 1994-05-02 | 1994-05-02 | Intracorporeal coil for percutaneous charging system for pace maker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07299150A (en) |
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- 1994-05-02 JP JP6115887A patent/JPH07299150A/en active Pending
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