JPH0363047A - Energy feeding apparatus for medical tool kept in human body - Google Patents
Energy feeding apparatus for medical tool kept in human bodyInfo
- Publication number
- JPH0363047A JPH0363047A JP1198307A JP19830789A JPH0363047A JP H0363047 A JPH0363047 A JP H0363047A JP 1198307 A JP1198307 A JP 1198307A JP 19830789 A JP19830789 A JP 19830789A JP H0363047 A JPH0363047 A JP H0363047A
- Authority
- JP
- Japan
- Prior art keywords
- human body
- light
- energy
- photoelectric conversion
- yag laser
- 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
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 54
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 239000003814 drug Substances 0.000 abstract description 11
- 229940079593 drug Drugs 0.000 abstract description 10
- 239000000523 sample Substances 0.000 abstract description 5
- 230000003340 mental effect Effects 0.000 abstract description 3
- 208000015181 infectious disease Diseases 0.000 abstract description 2
- 230000000717 retained effect Effects 0.000 abstract 2
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 10
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000006187 pill Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 210000001035 gastrointestinal tract Anatomy 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 239000000560 biocompatible material Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- -1 indium-aluminum-arsenic Chemical compound 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- External Artificial Organs (AREA)
- Prostheses (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は人体内に留置した電気的駆動部を持つ医療器具
に体外からエネルギを供給する体内留置式医療器具用エ
ネルギ供給装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an energy supply device for an indwelling medical device that supplies energy from outside the body to a medical device having an electric drive unit that is indwelled in the human body.
［従来の技術］
体内に留置して使用する医療器具が知られている。そし
て、この体内留置式医療器具にあっては、一般に、これ
に給電することが必要であるから、その手段が種々考え
られている。例えば体内留置式人工臓器に組み込んだ蓄
電器に電力を給電する場合、上記蓄電器に接続される給
電コネクタを人体外面部に露出して設け、この給電コネ
クタに外部電源を接続して給電するようにしたものがあ
る。[Prior Art] Medical devices that are used while being indwelled in the body are known. Since it is generally necessary to supply power to this indwelling medical device, various means have been considered. For example, when power is supplied to a power storage device built into an indwelling artificial organ, a power supply connector connected to the power storage device is provided exposed on the external surface of the human body, and an external power supply is connected to this power supply connector to supply power. There is something.
また、米国特許第３，９１９，７２２号明細書で示され
るように、人体外に露出する給電コネクタを設けること
なく、高周波電波を利用して体内に埋設した蓄電器へ無
線的に充電する方式も知られている。これは体内に設け
たコイルと体外に設置するコイルとを接近させて電磁誘
導によってエネルギを伝送するものである。Additionally, as shown in U.S. Patent No. 3,919,722, there is also a method of wirelessly charging a power storage device buried inside the human body using high-frequency radio waves without providing a power supply connector exposed outside the human body. Are known. This involves bringing a coil placed inside the body and a coil placed outside the body close together to transmit energy through electromagnetic induction.
［発明が解決しようとする課題］
上記人体外に露出する給電コネクタを利用する方式では
、外部電源からケーブルを介して給電コネクタに接続す
る必要があり、外部電源からのケーブルを用いるため、
充電場所が制限され、また、患者にとっても、稍神的負
担等が大きくかかる。さらに、比較的複雑な形状の給電
コネクタが人体外に露出するため、汚れなどがとれにく
くなり易く、その給電コネクタを衛生的に管理する上で
、患者に大きな負担をかけるものである。[Problems to be Solved by the Invention] In the method using the power supply connector exposed outside the human body, it is necessary to connect the external power supply to the power supply connector via a cable, and since the cable from the external power supply is used,
Charging locations are limited, and it also places a heavy burden on patients. Furthermore, since the power supply connector, which has a relatively complex shape, is exposed outside the human body, it is difficult to remove dirt and the like, which places a heavy burden on the patient in maintaining the power supply connector hygienically.
一方、高周波電波を利用して無線的に充電する方式のも
のでは、人体内に設けたコイルと、体外に設置するコイ
ルとを接近させて電磁誘導によってエネルギを伝送する
から、高周波による人体への種々の影響、例えば感電の
虞れがあるなどの問題があった。On the other hand, in systems that wirelessly charge using high-frequency radio waves, a coil installed inside the human body and a coil installed outside the body are brought close together and energy is transmitted through electromagnetic induction, so that the high-frequency waves do not affect the human body. There have been problems with various effects, such as the risk of electric shock.
本発明は上記課題に着目してなされたもので、その目的
とするところは使用する患者の負担が少なく、しかも、
人体内に留置した医療器具の電気的駆動部へ安全かつ容
易にエネルギを供給することができる体内留置式医療器
具用エネルギ供給装置を提供することにある。The present invention has been made with attention to the above-mentioned problems, and its purpose is to reduce the burden on patients who use it, and to
An object of the present invention is to provide an energy supply device for an indwelling medical device that can safely and easily supply energy to an electric drive unit of a medical device indwelling in a human body.
［課題を解決する手段および作用］
上記課題を解決するために本発明は、体内に留置した電
気的駆動部を有する医療器具にエネルギを供給する体内
留置式医療器具用エネルギ供給装置において、体内に留
置され上記医療器具に接続されその医療器具に電力を供
給するとともに体外側からの光を電気に変換する光電変
換素子と、体外に設置され前記光電変換素子へ光を供給
する光源装置とからなるものである。[Means for Solving the Problems and Effects] In order to solve the above problems, the present invention provides an energy supply device for an indwelling medical device that supplies energy to a medical device having an electric drive unit placed in the body. Consisting of a photoelectric conversion element that is placed indwelled and connected to the medical device to supply power to the medical device and convert light from outside the body into electricity, and a light source device that is installed outside the body and supplies light to the photoelectric conversion element. It is something.
しかして、体内に留置された光電変換素子に、体外に設
置した光源装置から生体等を透過して光を当て電気に変
換する。そして、この光電変換素子で変換した電力を体
内に留置した医療器具に供給する。つまり、体外から体
内に留置した医療器共に、同じく体内に留置された光電
変換素子を通じてエネルギを供給することができる。し
たがって、使用する患者の負担が少なく、しかも、人体
内に留置した医療器具の電気的駆動部へ安全かつ容易に
エネルギを供給することができる。The photoelectric conversion element placed in the body is then irradiated with light from a light source device installed outside the body through the living body and converted into electricity. The electrical power converted by this photoelectric conversion element is then supplied to a medical device placed inside the body. In other words, energy can be supplied to both a medical device placed in the body from outside the body through a photoelectric conversion element also placed in the body. Therefore, there is less burden on the patient who uses the device, and energy can be safely and easily supplied to the electrical drive section of a medical device placed in the human body.
［実施例］
第１図ないし第３図は本発明の第１の実施例を示すもの
である。第１図中１は人体であり、この人体１内には体
内留置式医療器具としての薬液注入ポンプ２が埋設され
ている。この薬液注入ポンプ２には同じく人体１内に完
全に挫め込まれた駆動電源回路部３が接続されている。[Embodiment] FIGS. 1 to 3 show a first embodiment of the present invention. In FIG. 1, reference numeral 1 represents a human body, and a drug solution infusion pump 2 as an indwelling medical device is embedded within this human body 1. A drive power supply circuit section 3, which is also completely embedded within the human body 1, is connected to this drug solution injection pump 2.
この駆動電源回路部３は、蓄電器４、充電器５、および
特に体表面近くに設置された光電変換索子６を備えてな
る。この光電変換素子６には特に赤外光領域を中心とし
て高い変換効率を有する太陽電池等を用いる。そして、
この光電変換素子６で受けた光を電気エネルギに変換し
、これを充電器５を介して蓄電器４に充電するようにな
っている。This drive power supply circuit section 3 includes a power storage device 4, a charger 5, and a photoelectric conversion cord 6 installed particularly near the body surface. For this photoelectric conversion element 6, a solar cell or the like having high conversion efficiency particularly in the infrared light region is used. and,
The light received by the photoelectric conversion element 6 is converted into electrical energy, which is charged to the electricity storage device 4 via the charger 5.
また、この光電変換素子６の受光面６ａは埋め込まれた
位置で人体１の皮膚ａ側に向くようになっている。Further, the light receiving surface 6a of this photoelectric conversion element 6 faces toward the skin a side of the human body 1 at the embedded position.
また、第２図で示すように上記薬液注入ポンプ２は、上
記蓄電器４から電力の供給を受けるポンプ駆動回路７、
薬液を貯蔵するリザーバ８、およびポンプ部９を組み込
んでなり、ポンプ部９の吐出口１０には薬液の投与対象
の血管１１に接続したチューブ１２が接続されている。In addition, as shown in FIG. 2, the drug solution injection pump 2 includes a pump drive circuit 7 that receives power from the capacitor 4;
It incorporates a reservoir 8 for storing a medicinal solution and a pump section 9, and a discharge port 10 of the pump section 9 is connected to a tube 12 connected to a blood vessel 11 to which the medicinal solution is administered.
また、この薬液注入ポンプ２は上記リザーバ８に体外か
ら薬Ｉ夜を供給するための注射針を穿刺可能な弾性材料
よりなる窓部１３が設けられている。なお、この薬液注
入ポンプ２により投与する薬液としてはインシュリン、
抗癌剤、ホルモン等がある。そして、この薬液の補給は
窓部１３に隣接する皮膚ａを貫通してその窓部１３に注
射針を穿刺し、その注射針を通じて供給するようになっ
ている。Further, the drug solution injection pump 2 is provided with a window portion 13 made of an elastic material into which an injection needle for supplying the drug from outside the body can be inserted into the reservoir 8 . In addition, the medicinal solution administered by this medicinal solution infusion pump 2 includes insulin,
There are anticancer drugs, hormones, etc. The medicinal solution is supplied by penetrating the skin a adjacent to the window 13 and puncturing the window 13 with a syringe needle, and supplying the drug through the syringe needle.
また、体外にはＹＡＧレーザ装置１４が設置されている
。ＹＡＧレーザ装置１４には出カブローブ１５が接続さ
れ、その出カブローブ１５の出射端を上記駆動Ｍｌ源回
路部３における光電変換索子６の受光面６ａに皮膚ａを
介して対向させるようになっている。Furthermore, a YAG laser device 14 is installed outside the body. An output probe 15 is connected to the YAG laser device 14, and the output end of the output probe 15 is made to face the light receiving surface 6a of the photoelectric conversion cord 6 in the drive Ml source circuit section 3 through the skin a. There is.
上記ＹＡＧレーザ装置１４は波長１．０６μｍの赤外光
を出射する。この赤外光は後で述べるように人体１の組
織に対しての透過性がよい。したがって、人体１の皮膚
ａを介して光電変換素子６に類１１する光としては最適
である。従来、−船釣に知れているガリウム・ヒ素系の
光電変換素子では波長０．８７μｍまでの主に可視光領
域までが光電変換できる限界であった。しかし、近年に
なり、同じガリウム・ヒ素系のもので、波長０．８７μ
ｍ以上の赤外光領域でも、高い変換効率を持つ光電変換
素子が開発されており、これにより人体１の組織に対し
ての透過性がよい波長１．０６μｍの赤外光を使用して
皮膚ａを透過させて光電変換素子６により光を効率よく
光電変換できることができるようになった。なお、波長
０．８７μｍ以上の赤外光領域でも、高い変換効率を持
つ光電変換素子としては例えばＮ型インジウム・リンの
基板上に、ＰＮ接合したインジウム・ガリウム・ヒ素の
吸収層を形成し、さらに、Ｐ型インジウム・アルミニウ
ム・ヒ素の窓層、およびＰ型インジウム・ガリウム・ヒ
素のキヤ・ソブ層を積み重ねて旦本セルとしたものがあ
る。The YAG laser device 14 emits infrared light with a wavelength of 1.06 μm. This infrared light has good permeability to the tissues of the human body 1, as will be described later. Therefore, it is optimal for light to be transmitted to the photoelectric conversion element 6 through the skin a of the human body 1. Conventionally, the gallium arsenide photoelectric conversion element known for boat fishing has a photoelectric conversion limit of wavelengths up to 0.87 μm, mainly in the visible light range. However, in recent years, the same gallium arsenic material has been used, with a wavelength of 0.87 μm.
Photoelectric conversion elements have been developed that have high conversion efficiency even in the infrared light region of m or more. By transmitting the light a, the photoelectric conversion element 6 can efficiently convert the light into electricity. In addition, as a photoelectric conversion element that has high conversion efficiency even in the infrared light region with a wavelength of 0.87 μm or more, for example, a PN-junctioned indium-gallium-arsenic absorption layer is formed on an N-type indium-phosphide substrate. Furthermore, there is a cell made by stacking a P-type indium-aluminum-arsenic window layer and a P-type indium-gallium-arsenide layer.
また、そのＹＡＧレーザ光の人体に対する透過特性につ
いて説明すると、第３図で示す「水および血液による光
吸収波長の特性」から明らかなように、可視光領域（約
０．７μｍ以下）では血液による光の吸収がかなり大き
いことがわかる。また、光波長が長くなるにつれて、血
液による光の吸収は減少し、代わって水による光の吸収
が増大することがわかる。したがって、１．０６μｍの
波長を持つＹＡＧレーザ光は血液に対しても、水に対し
ても吸収されにくい波長領域に位置し、人体１への透過
性はよいといえる。In addition, to explain the transmission characteristics of YAG laser light to the human body, as shown in Figure 3, "Characteristics of light absorption wavelength by water and blood," in the visible light region (approximately 0.7 μm or less), blood It can be seen that the absorption of light is quite large. It can also be seen that as the wavelength of light becomes longer, the absorption of light by blood decreases and the absorption of light by water increases instead. Therefore, the YAG laser beam having a wavelength of 1.06 μm is located in a wavelength range where it is difficult to be absorbed by blood or water, and it can be said that the YAG laser beam has good penetration into the human body 1.
しかして、上記構成において、薬液注入ポンプ２の蓄電
器４にエネルギを補給する場合、ＹＡＧレーザ装置１４
の出カブローブ１５の出射先端を、生体に埋設した光電
変換索子６の受光面６ａに対応する人体１の外表面の部
位に向ける。そして、ＹＡＧレーザ光を出射すれば、人
体１の皮膚ａを透過してＹＡＧレーザ光は光電変換索子
６の受光面６ａを照射し、電気エネルギに変換される。Therefore, in the above configuration, when replenishing energy to the capacitor 4 of the chemical liquid injection pump 2, the YAG laser device 14
The output tip of the output probe 15 is directed toward a portion of the outer surface of the human body 1 corresponding to the light receiving surface 6a of the photoelectric conversion cord 6 embedded in the living body. Then, when the YAG laser light is emitted, it passes through the skin a of the human body 1, irradiates the light receiving surface 6a of the photoelectric conversion cord 6, and is converted into electrical energy.
この電気エネルギは充電器５を介して蓄電器４に貯えら
れる。そして、薬液注入ポンプ２が作動する際、ポンプ
駆動回路７に蓄電器４より電力を供給する。This electrical energy is stored in the capacitor 4 via the charger 5. Then, when the drug solution injection pump 2 operates, power is supplied to the pump drive circuit 7 from the capacitor 4 .
ここで、光電変換索子６は生体内に完全に埋め込まれて
いるため、感染などの問題がなく安全である。また、エ
ネルギ伝送手段として光を用いているため、感電の危険
もなく安全である。しかも、光を用いて無線的にエネル
ギを供給できるため、患者の自由度が大きくなる。さら
に、光電変換素子６を生体に完全に埋め込んでいるため
、外観上に変化はなく、患者の精神的苦痛を軽減できる
。Here, since the photoelectric conversion cord 6 is completely embedded in the living body, it is safe without problems such as infection. Furthermore, since light is used as the energy transmission means, there is no danger of electric shock and it is safe. Moreover, since energy can be supplied wirelessly using light, the patient's degree of freedom is increased. Furthermore, since the photoelectric conversion element 6 is completely embedded in the living body, there is no change in appearance, and the patient's mental pain can be alleviated.
第４図は本発明の第２の実施例を示すものである。上記
第１の実施例においては、使用した光電変換素子６は赤
外光用のみであったが、この第２の実施例では、その赤
外光用光電変換索子６と並べて可視光用光電変換索子１
６を人体１の体表面近くの内部に埋設した。その他の構
成は第１の実施例のものと特に変わらず同じである。た
だし、体外に配置する光源としては、−膜内なデイライ
ト光源１７、例えばハロゲンランプやキセノンランプを
用いる。FIG. 4 shows a second embodiment of the invention. In the first embodiment, the photoelectric conversion element 6 used was only for infrared light, but in this second embodiment, the photoelectric conversion element 6 for visible light is used alongside the photoelectric conversion element 6 for infrared light. Conversion cable 1
6 was buried inside the human body 1 near the body surface. The other configurations are the same as those of the first embodiment. However, as a light source placed outside the body, an intra-membrane daylight light source 17, such as a halogen lamp or a xenon lamp, is used.
そして、このデイライト光源１７から受ける赤外光領域
は赤外光用光電変換素子６が電気エネルギに変換し、可
視光領域は可視光用光電変換索子１６が電気エネルギに
変換する。このようにしてｉ！Ｉられた電気エネルギは
上記第１の実施例と同様の流れでポンプ駆動回路７に供
給される。The infrared light region received from the daylight light source 17 is converted into electrical energy by the infrared light photoelectric conversion element 6, and the visible light region is converted into electrical energy by the visible light photoelectric conversion element 16. In this way i! The electrical energy thus generated is supplied to the pump drive circuit 7 in the same flow as in the first embodiment.
前述したように可視光は血液に吸収され易いので、人体
を透過しにくい。しかしながら、現時点では可視光用光
電変換索子１６の方が赤外光用光電変換索子６に比べ数
倍変換効率がよい。したがって、微弱ながら人体１を透
過した可視光を高効率で電気エネルギに変換できる。こ
のように赤外先用先電変換索子６と可視光用光電変換水
Ｐ１６とを並べて設置することにより、デイライト光源
１７の可視光領域、赤外光領域共にその電気エネルギを
取り出して利用することができ、より高効率のエネルギ
供給装置を実現できる。しかも、このデイライト光源１
７は上記ＹＡＧレーザ装置１４に比べ非常に安価である
から、経済的な装置として構成できる。なお、デイライ
ト光源としては、太陽光でもよい。このように光源とし
ては特殊なものでなくともよく、一般家電の照明器只で
もよいので、はとんどあらゆる場所での充電が可能とな
り患者の生活行動範囲を拡大できる。その他、上記第１
の実施例のものと同じ作用効果を奥する。As mentioned above, visible light is easily absorbed by blood, so it is difficult for it to pass through the human body. However, at present, the photoelectric conversion cable 16 for visible light has a conversion efficiency several times better than the photoelectric conversion cable 6 for infrared light. Therefore, visible light transmitted through the human body 1, although weak, can be converted into electrical energy with high efficiency. By arranging the infrared first electric conversion cord 6 and the visible light photoelectric conversion water P16 side by side in this way, the electric energy of both the visible light region and the infrared light region of the daylight light source 17 can be extracted and used. Therefore, a more efficient energy supply device can be realized. Moreover, this daylight light source 1
Since YAG laser device 7 is much cheaper than the YAG laser device 14, it can be constructed as an economical device. Note that sunlight may be used as the daylight light source. In this way, the light source does not need to be anything special, and can be just a general household appliance lighting device, making it possible to charge the battery almost anywhere, thereby expanding the patient's range of daily activities. Others, above 1.
The effect is the same as that of the embodiment.
第５図は本発明の第３の実施例を示すものである。この
実施例は経皮端子１８を利用して可塊光用光電変換索子
１６に光を照射するようにしている。すなわち、経皮端
子】８は筒状の本体部１９を構成し、その孔部２０に透
明体２１を一体成形法等の手段によってその孔部２ｏを
気密に封止するごとく固定しである。透明体２１は例え
ば透明プラスチック材料、つまり、アクリル系樹脂、ポ
リカーボネイト、ポリメチルペンテン等の合成樹脂、ま
たはガラス、望ましくはサファイアガラスなどを用いる
ことが、生体との反応が少なくかつ為害性がないことか
ら適している。また、経皮端子１８の本体部１９の材料
としてはハイドロキシアパタイト、β−ＴＣＰ等の生体
適ａ性を有するセラミックやシリコン、ポリウレタン、
ポリエーテルサルフォン等の生体適合性を有する１％分
子村料金用いる。さらに、この経皮端子１８の本体部１
つの外周にはくびれ部２２が設けられている。FIG. 5 shows a third embodiment of the invention. In this embodiment, a percutaneous terminal 18 is used to irradiate the photoelectric conversion cord 16 for agglomerative light with light. That is, the percutaneous terminal 8 constitutes a cylindrical main body 19, and a transparent body 21 is fixed to the hole 20 of the terminal by integral molding or the like so as to airtightly seal the hole 2o. The transparent body 21 may be made of, for example, a transparent plastic material, that is, a synthetic resin such as acrylic resin, polycarbonate, or polymethylpentene, or glass, preferably sapphire glass, since it has little reaction with living organisms and is not harmful. Suitable from The material of the main body 19 of the percutaneous terminal 18 may include biocompatible ceramics such as hydroxyapatite and β-TCP, silicone, polyurethane, etc.
A 1% biocompatible material such as polyether sulfone is used. Furthermore, the main body portion 1 of this percutaneous terminal 18
A constricted portion 22 is provided on the outer periphery of each.
そして、このくびれ部２２を境界としてその下部が生体
への埋入部２３、上部が露出部２４として形成されてい
る。また、埋人部２３の端面中央部分には上記可蜆充用
光電変換索子１６が固定枠２５により密着固定されてい
る。With this constricted portion 22 as a boundary, a lower portion thereof is formed as an implantation portion 23 into the living body, and an upper portion thereof is formed as an exposed portion 24. Further, the photoelectric conversion cord 16 for photoelectric conversion is tightly fixed to the center portion of the end face of the buried portion 23 by a fixing frame 25 .
さらに、可視光１１１光電変換索子１６には上記第１の
実施例と同様に駆動電源回路部３の充電器５、蓄電器４
を介して薬）ｆｋ注入ポンプ２に電気的に接続されてい
る。Further, the visible light 111 and the photoelectric conversion cable 16 are provided with a charger 5 of the drive power supply circuit section 3 and a capacitor 4, as in the first embodiment.
drug) is electrically connected to the fk infusion pump 2.
しかして、体外に配置したデイライト光源１７より経皮
端子１８に向けて照射すると、光は透明体２１を透過し
て可視光用光電変換索子１６に到達し、その光電変換素
子１６において光電変換が行われる。以下は第１の実施
例の場合と同じである。When the daylight light source 17 placed outside the body irradiates the percutaneous terminal 18, the light passes through the transparent body 21 and reaches the visible light photoelectric conversion cord 16. Conversion takes place. The following is the same as in the first embodiment.
そして、この実施例では透明体２１を通して光電変換素
子１６に光を導くから、光源からの光は人体を介さずに
光電変換索子１６に到達する。すなわち、光の減衰は上
記第１、第２の実施例に比べ極めて少なく、より効率的
に電気エネルギを得ることかできる。したがって、従来
技術で述べた給電コネクタ方式と比べて無線的にエネル
ギを伝送するため、患者の自由度は大きく、さらに患者
の精神的負担を軽減することができる。In this embodiment, since light is guided to the photoelectric conversion element 16 through the transparent body 21, the light from the light source reaches the photoelectric conversion element 16 without passing through the human body. That is, the attenuation of light is extremely small compared to the first and second embodiments, and electrical energy can be obtained more efficiently. Therefore, since energy is transmitted wirelessly compared to the power supply connector method described in the related art, the degree of freedom for the patient is greater and the mental burden on the patient can be reduced.
また、体外に設置する光源としては特殊なものでなくと
もよく、例えば一般家庭の照明器具によるものでも良い
ので、はとんどあらゆる場所での充電が可能となり患者
の生活行動範囲を拡大できる。In addition, the light source installed outside the body does not need to be a special one; for example, it may be a general household lighting fixture, so charging can be done almost anywhere, expanding the patient's range of daily activities.
第６図および第７図は本発明の第４の実施例を示すもの
である。上述した第１から第３の実施例のものでは薬液
注入ポンプに電気エネルギを供給する場合の例をとって
説明したが、本発明のエネルギ供給装置によるエネルギ
供給の供給対象は上述した薬液注入ポンプに限定される
ものでなく、電気的駆動部を持ち生体内に留置される医
療器具ならば、全てに応用できる可能性があるこの第４
の実施例はその一例としてラジオピル３０を示す。6 and 7 show a fourth embodiment of the present invention. In the first to third embodiments described above, the case where electrical energy is supplied to the chemical liquid injection pump was explained as an example, but the target of energy supply by the energy supply device of the present invention is the above-mentioned chemical liquid injection pump. This fourth method can be applied to any medical device that has an electrically driven part and is indwelled in a living body.
The embodiment shows a radio pill 30 as an example thereof.
このラジオピル３０は第６図で示すように消化管３１内
に留置し、その消化管３１内のｐＨ，温度等を測定する
ものである。第７図で示すようにラジオピル３１の内部
には開口部３２に臨んでセンサ３３を設け、このセンサ
３３は駆動回路３４を介して送信器３５に接続されてい
る。また、駆動回路３４はラジオピル３０の内周に設け
た赤外光用光電変換素子６に接続されている。This radiopill 30 is placed in the digestive tract 31 as shown in FIG. 6, and the pH, temperature, etc. in the digestive tract 31 are measured. As shown in FIG. 7, a sensor 33 is provided inside the radio pill 31 facing the opening 32, and this sensor 33 is connected to a transmitter 35 via a drive circuit 34. Further, the drive circuit 34 is connected to the infrared light photoelectric conversion element 6 provided on the inner circumference of the radio pill 30.
センサ３３が消化管３１内のｐＨ等を測定し、送信器３
５よりそのデータを体外に設けた受信器（図示しない）
へ送信する。そのとき、駆動回路３４の動力源として光
電気変換素子６が体外のＹＡＧレーザー装置１４より光
を受は電気エネルギを発生する。The sensor 33 measures the pH etc. in the digestive tract 31, and the transmitter 3
5, a receiver installed outside the body (not shown) receives the data.
Send to. At this time, the photoelectric conversion element 6 as a power source for the drive circuit 34 receives light from the YAG laser device 14 outside the body and generates electrical energy.
なお、このラジオピル３０は充電器、蓄電器を省いてい
るので、光を照射した時のみ、データを送信できること
になる。しかし、充電器、蓄電器を省いているので、ラ
ジオビル３ｏの小型化が可能である。この実施例のラジ
オビル３ｏのように連続して駆動させる必要がない場合
は光電変換素子６と駆動回路３４を直結にする方法が有
効である。また、赤外光なので人体深部まで到達する。Note that since this radio pill 30 does not include a charger or a power storage device, data can be transmitted only when irradiated with light. However, since the charger and power storage device are omitted, it is possible to downsize the radio building 3o. When there is no need for continuous driving as in the case of the radio building 3o of this embodiment, it is effective to connect the photoelectric conversion element 6 and the drive circuit 34 directly. Also, since it is infrared light, it reaches deep into the human body.
このような構成によれば、小型化が可能である。According to such a configuration, miniaturization is possible.
したがって患者への肉体的負担が軽減する。Therefore, the physical burden on the patient is reduced.
なお、本発明は上記各実施例のものに限定されるもので
はない。例えば図示しないが、上述した第１から第３の
実施例において、蓄電器４と充電器５を省いた構成のも
のも考えられる。Note that the present invention is not limited to the above embodiments. For example, although not shown, a configuration in which the capacitor 4 and charger 5 are omitted from the first to third embodiments described above may be considered.
また、体外の光源の照明強度を変化させることにより光
電変換素子の出力を変化させて例えば薬液注入ポンプの
薬液吐出量を調整するようにしてもよい。Furthermore, by changing the illumination intensity of a light source outside the body, the output of the photoelectric conversion element may be changed to adjust, for example, the amount of liquid medicine discharged from a liquid injection pump.
［発明の効果］
以上説明したように本発明は、体内に留置された光電変
換素子に、体外に設置した光源装置から光を当て電気エ
ネルギに変換する。そして、この光電変換素子で変換し
た電力を体内に留置した医療器具に供給する。つまり、
体外から体内に留置した医、療器具に、同じく体内に留
置され光電変換素子を通じてエネルギを供給することが
できる。[Effects of the Invention] As described above, the present invention irradiates a photoelectric conversion element placed in the body with light from a light source device installed outside the body and converts it into electrical energy. The electrical power converted by this photoelectric conversion element is then supplied to a medical device placed inside the body. In other words,
Energy can be supplied from outside the body to medical and medical instruments placed inside the body through a photoelectric conversion element also placed inside the body.
したがって、使用する患者の負担が少なく、しかも、人
体内に留置した医療器具の電気的駆動部へ安全かつ容易
にエネルギを供給することができる。Therefore, there is less burden on the patient who uses the device, and energy can be safely and easily supplied to the electrical drive section of a medical device placed in the human body.
第１図ないし第３図は本発明の第１の実施例を示し、第
１図はその薬液注入ポンプの使用状態の説明図、第２図
は同じく使用状態における断面図、第３図は水および血
液による光吸収波長特性を示す図である。第４図は本発
明の第２の実施例を示すその使用状態の説明図である。
第５図は本発明の第３の実施例を示すその使用状態の説
明図である。第６図および第７図は本発明の第４の実施
例を示し、第６図はその使用状態の説明図、第７図はそ
のラジオビルの断面図である。
１・・・人体、２・・・薬液注入ポンプ、６・・・光電
変換素子、１４・・・ＹＡＧレーザ装置、１５・・・出
カブローブ、１６・・・光電変換素子、３０・・・ラジ
オビル。1 to 3 show a first embodiment of the present invention, FIG. 1 is an explanatory diagram of the liquid injection pump in use, FIG. 2 is a cross-sectional view in the use condition, and FIG. FIG. 3 is a diagram showing light absorption wavelength characteristics by blood. FIG. 4 is an explanatory diagram showing the second embodiment of the present invention in its usage state. FIG. 5 is an explanatory diagram showing the third embodiment of the present invention in its usage state. 6 and 7 show a fourth embodiment of the present invention, with FIG. 6 being an explanatory view of its use, and FIG. 7 being a sectional view of the radio building. DESCRIPTION OF SYMBOLS 1... Human body, 2... Chemical injection pump, 6... Photoelectric conversion element, 14... YAG laser device, 15... Output probe, 16... Photoelectric conversion element, 30... Radio building.
Claims (1)
からエネルギを供給する体内留置式医療器具用エネルギ
供給装置において、 体内に留置され上記医療器具に接続されその医療器具に
電力を供給するとともに体外側からの光を電気に変換す
る光電変換素子と、体外に設置され前記光電変換素子へ
光を供給する光源装置とからなることを特徴とする体内
留置式医療器具用エネルギ供給装置。[Scope of Claims] An energy supply device for an indwelling medical device that supplies energy from outside the body to a medical device that is indwelled in the body and has an electric drive unit, comprising: an energy supply device that is indwelled in the body and connected to the medical device; An energy device for an indwelling medical device comprising a photoelectric conversion element that supplies electricity and converts light from outside the body into electricity, and a light source device that is installed outside the body and supplies light to the photoelectric conversion element. Feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1198307A JPH0363047A (en) | 1989-07-31 | 1989-07-31 | Energy feeding apparatus for medical tool kept in human body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1198307A JPH0363047A (en) | 1989-07-31 | 1989-07-31 | Energy feeding apparatus for medical tool kept in human body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0363047A true JPH0363047A (en) | 1991-03-19 |
Family
ID=16388958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1198307A Pending JPH0363047A (en) | 1989-07-31 | 1989-07-31 | Energy feeding apparatus for medical tool kept in human body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0363047A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006501015A (en) * | 2002-10-01 | 2006-01-12 | ポテンシア・メディカル・アーゲー | Implantable pump that operates hydraulic implants |
| JP2008220766A (en) * | 2007-03-14 | 2008-09-25 | Hamamatsu Univ School Of Medicine | Device and kit for delivering medicine in living body |
| US9662117B2 (en) | 2007-10-11 | 2017-05-30 | Peter Forsell | Apparatus for controlling flow in a bodily organ |
-
1989
- 1989-07-31 JP JP1198307A patent/JPH0363047A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006501015A (en) * | 2002-10-01 | 2006-01-12 | ポテンシア・メディカル・アーゲー | Implantable pump that operates hydraulic implants |
| JP4733389B2 (en) * | 2002-10-01 | 2011-07-27 | プロステシカ・アーゲー | Implantable pump that operates hydraulic implants |
| US7988616B2 (en) | 2002-10-01 | 2011-08-02 | Potencia Medical Ag | Implantable pump for operation of hydraulic implant |
| US8821371B2 (en) | 2002-10-01 | 2014-09-02 | Potencia Medical Ag | Implantable pump for operation of hydraulic implant |
| JP2008220766A (en) * | 2007-03-14 | 2008-09-25 | Hamamatsu Univ School Of Medicine | Device and kit for delivering medicine in living body |
| US9662117B2 (en) | 2007-10-11 | 2017-05-30 | Peter Forsell | Apparatus for controlling flow in a bodily organ |
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