JPH03176069A - Artificial heart - Google Patents
Artificial heartInfo
- Publication number
- JPH03176069A JPH03176069A JP1314343A JP31434389A JPH03176069A JP H03176069 A JPH03176069 A JP H03176069A JP 1314343 A JP1314343 A JP 1314343A JP 31434389 A JP31434389 A JP 31434389A JP H03176069 A JPH03176069 A JP H03176069A
- Authority
- JP
- Japan
- Prior art keywords
- blood
- skin
- pump
- blood pump
- rotor
- 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
- 210000004369 blood Anatomy 0.000 claims abstract description 38
- 239000008280 blood Substances 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract 2
- 210000004204 blood vessel Anatomy 0.000 abstract description 4
- 208000035473 Communicable disease Diseases 0.000 abstract description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 3
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 230000004907 flux Effects 0.000 abstract description 2
- 238000001727 in vivo Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 230000017531 blood circulation Effects 0.000 description 13
- 239000012528 membrane Substances 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 210000004072 lung Anatomy 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000005246 left atrium Anatomy 0.000 description 1
- 210000005240 left ventricle Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
- 210000005241 right ventricle Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Abstract
Description
【発明の詳細な説明】
本発明は、血液ポンプを体内に内蔵し、その血液ポンプ
の駆動源を体外に設け、感染症を完全に防止する人工心
臓に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an artificial heart that has a blood pump built into the body, a drive source for the blood pump provided outside the body, and completely prevents infectious diseases.
従来の人工心臓は、１９８２年にアメリカのユタ大学に
おいて、機能の低下した心室の肩代りをする装置として
、患者の体外に設けた空気ポンプから腹部に差込まれた
チューブをとおして、人体内に移植された人工心臓に駆
動源の空気を送入して拍動させる装置が使用された。こ
れにより本来の目的即ち適切な血液循環を促すことはで
きたが、患者は４ケ月後に死亡した。その最大の原因は
患者の腹部を切開して挿入されたチューブの付近に膿瘍
ができ、これから体内に入った細菌が肺、腎臓、肝臓な
どに感染症を起こしたためであることが知られている。The conventional artificial heart was developed in 1982 at the University of Utah in the United States as a device to replace a ventricle with decreased function. A device was used that pumped air as a driving source into the artificial heart implanted in the hospital, causing it to beat. Although this achieved its original purpose of promoting proper blood circulation, the patient died after four months. It is known that the main cause of this is that an abscess forms near the tube that was inserted through an incision in the patient's abdomen, and bacteria that enter the patient's body cause infections in the lungs, kidneys, liver, etc. .
本発明は前記のごとき感染症の発生を完全に防止し、且
つ人工心臓を装着した人が動き易いようにした画期的な
発明である。The present invention is an epoch-making invention that completely prevents the occurrence of infectious diseases such as those mentioned above, and also allows people with artificial hearts to move more easily.
第１図および第２図は本発明実施例を示し、皮膚ｌ内の
体内に埋込まれた血液ポンプ２と、血液ポンプ内に配設
され、体内血管に接続される送血チューブ３と、皮膚ｌ
の外に取付けて血液ポンプを作動する駆動部４から戒る
人工心臓である。FIGS. 1 and 2 show an embodiment of the present invention, which includes a blood pump 2 implanted in the body within the skin l, a blood feeding tube 3 disposed inside the blood pump and connected to a blood vessel in the body, skin l
This is an artificial heart that is controlled by the drive unit 4 that is attached to the outside of the blood pump and operates the blood pump.
血液ポンプ２は、放射状にマグネット５とヨーク６を設
けた回転子７を、ケース８内に軸９により回転自在に支
持し、回転子７の周囲には転勤子ＩＯを設ける。In the blood pump 2, a rotor 7 having a radial magnet 5 and a yoke 6 is rotatably supported in a case 8 by a shaft 9, and a transfer element IO is provided around the rotor 7.
回転子７外側とケース８内側の間には、柔軟で弾性があ
る送血チューブ３を、ケース８内側に沿って設け、回転
子７と共に回転する転勤子１０がチューブ３を押しつぶ
しながら矢印１１方向にころがって行くと、体内血管に
接続されたチューブ３内の血液が矢印１２方向に送流さ
れる。A flexible and elastic blood feeding tube 3 is provided along the inside of the case 8 between the outside of the rotor 7 and the inside of the case 8, and the transfer element 10 rotating together with the rotor 7 crushes the tube 3 while moving in the direction of the arrow 11. When the tube 3 is rolled, blood in the tube 3 connected to an internal blood vessel is sent in the direction of the arrow 12.
転勤子１０により圧接されるチューブ３はケース８内に
完全に密封され、ポンプ２内部は体組織から遮断されて
いる。The tube 3 that is pressed by the transfer element 10 is completely sealed inside the case 8, and the inside of the pump 2 is isolated from body tissues.
駆動部４は、血液ポンプ２の回転子のマグネット５と皮
膚ｌをはさみ対向するマグネッ目３とヨーク１４を具え
てモータ１５により回転する駆動子１６と、モータ１５
を回転させる電池およびコントローラ１７がケース１８
内に収められており、回転子７と駆動子１６が対向する
ように駆動部４を体外の皮膚面に取付け、駆動子１６を
回転させると、回転子７と駆動子１６の間の閉磁束１９
により回転子７が回転してチューブ３により送血する。The drive unit 4 includes a drive element 16 which includes a magnet 5 of the rotor of the blood pump 2 and a magnet eye 3 and a yoke 14 that face each other across the skin 1, and is rotated by a motor 15.
The battery and controller 17 that rotate the
When the drive part 4 is attached to the skin surface outside the body so that the rotor 7 and the driver 16 face each other, and the driver 16 is rotated, a closed magnetic flux between the rotor 7 and the driver 16 is generated. 19
The rotor 7 rotates and blood is sent through the tube 3.
第３図に示す実施例は血液ポンプ２において回転子７．
７′を並設し、これに送血チューブ３をＳ字型に配設し
、転勤子ｌＯのおさえ送りにより送血するものであるが
、回転子７．７′は回転方向が矢印２０．２１のごとく
互いに逆方向になっており、これにより回転子の駆動ト
ルクが互いに打消され、ケース８が回転子の一方向の回
転により身体内でトルクを生じないようになっている。In the embodiment shown in FIG. 3, a rotor 7.
7' are arranged in parallel, and the blood feeding tube 3 is arranged in an S-shape on this, and blood is sent by holding and feeding the transfer element 1O. 21, the driving torques of the rotors cancel each other out, so that the case 8 does not generate torque within the body due to rotation of the rotor in one direction.
第４図は、２個の回転子７．７′を並設し、送血チュー
ブ３を隔壁２２で仕切ってそれぞれＵ型に配設して並べ
た本発明実施例を示す。FIG. 4 shows an embodiment of the present invention in which two rotors 7, 7' are arranged side by side and the blood feeding tubes 3 are partitioned by a partition wall 22 and arranged in a U-shape.
この送血は第５図に示す心臓の血流方向２３．２４．２
５．２６と同様にすることができ、血管との接続に好都
合である。This blood flow is carried out in the direction of blood flow in the heart as shown in Fig. 23.24.2.
5.26, which is convenient for connection with blood vessels.
即ち、第５図に示すように心臓の血流方向は、左心房、
左心室に相当する同転子７のポンプにより大動脈で血流
２３が送り出され、全身を流れる静脈を経て右心房、右
心室に相当する回転子７′のポンプにより血流２４が帰
り、肺への血流２５となって送り出され、再び回転子７
のポンプに血液２６が帰り循環する。That is, as shown in FIG. 5, the blood flow direction of the heart is from the left atrium to
Blood flow 23 is sent out in the aorta by the pump of the trochanter 7, which corresponds to the left ventricle, and blood flow 24 returns to the lungs through the veins flowing throughout the body by the pump of the rotor 7', which corresponds to the right atrium and right ventricle. blood flow 25 and is sent out again to the rotor 7.
Blood 26 returns to the pump and circulates.
第６図は本発明を身体に装着した実施例を示す。FIG. 6 shows an embodiment in which the present invention is worn on the body.
血液ポンプ２を皮膚ｌの下に埋め込み、これに近接する
皮膚外面に駆動部４を、ベルト２７により首２８と胸部
２９に固定して使用する。The blood pump 2 is implanted under the skin 1, and the driving part 4 is fixed to the outer surface of the skin adjacent to the blood pump 2 by a belt 27 to the neck 28 and chest 29.
第７図および第８図も本発明実施例を示し、柔軟な平袋
３０の片側に永久磁石３１を固着してケース３２中に密
閉した血液ポンプ３３を皮膚１内に埋込み、皮膚ｌ外面
には、磁石３１に近接する電磁石３４と、電磁石３４の
コイルにコントローラ３５を経て通電する電池３６から
戒る駆動部３７を装着し、袋３０は人血パイプ３８と送
血パイプ３９を有し、これらのパイプには一方向弁４０
．４１を設けた人工心臓である。7 and 8 also show an embodiment of the present invention, in which a permanent magnet 31 is fixed to one side of a flexible flat bag 30 and a blood pump 33 sealed in a case 32 is embedded in the skin 1, and the blood pump 33 is placed on the outer surface of the skin 1. is equipped with an electromagnet 34 close to the magnet 31, and a drive unit 37 that connects the coil of the electromagnet 34 with a battery 36 that is energized via a controller 35, and the bag 30 has a human blood pipe 38 and a blood feeding pipe 39, These pipes have one-way valves 40
．． It is an artificial heart equipped with 41.
コントローラ３５により送血の脈動に合わせた交流電流
を電磁石３４に送ると、永久磁石３１が矢印４２のごと
く振遥し、これにより袋３０が膨張又は縮小して血流が
パイプ３８よりパイプ３９に矢印４２のごとく送流され
る。When the controller 35 sends an alternating current that matches the pulsations of blood feeding to the electromagnet 34, the permanent magnet 31 vibrates in the direction of the arrow 42, causing the bag 30 to expand or contract, causing blood flow to flow from the pipe 38 to the pipe 39. It is sent in the direction of arrow 42.
第９図および第１０図は本発明実施例を示し、４３は皮
膚１の下に埋込まれた血流ポンプであり、ポリエチレン
又はポリプロピレンの外殻に包まれている。４４は皮膚
ｌの外側に装着した駆動部である。Figures 9 and 10 show an embodiment of the invention, in which 43 is a blood flow pump implanted under the skin 1 and enclosed in a polyethylene or polypropylene shell. 44 is a drive unit attached to the outside of the skin l.
血流ポンプ４３は、柔軟な平袋４５の両側に当てがった
押板４６．４７を軸４８．４９．５０により、鋏のよう
にはさむアーム５１．５２を有し、アーム５１．５２の
端５３は血流ポンプ４３ケースに固定され、他端５４に
は永久磁石５５を設ける。The blood flow pump 43 has an arm 51.52 that holds a push plate 46.47 placed on both sides of a flexible flat bag 45 with a shaft 48.49.50 like scissors. The end 53 is fixed to the blood flow pump 43 case, and the other end 54 is provided with a permanent magnet 55.
永久磁石５５に近接して駆動部４４の電磁石５６を配置
し、電池３６からの電流を、心ｌｌｌ１ｉ５７の脈動を
感知するコントローラ５８によりその脈動と同じ交流と
して電磁石５６に供給する。An electromagnet 56 of the drive unit 44 is disposed close to the permanent magnet 55, and a controller 58 that senses the pulsation of the core 111i57 supplies current from the battery 36 to the electromagnet 56 as an alternating current that is the same as the pulsation.
これにより永久磁石５５が矢印６０のごとく振遥するの
で、押板４７も同じく振遥し、平袋４５が矢印６１のご
とく膨大又は縮小し、平袋４５に連なり、一方向弁４０
．４１を設けた血流パイプ３８．３９で、血流が矢印４
２のごとく流れるようにして、心臓５７を補助する人工
心臓である。As a result, the permanent magnet 55 swings as shown by the arrow 60, so the push plate 47 also swings, and the flat bag 45 expands or contracts as shown by the arrow 61, continues to the flat bag 45, and the one-way valve 40
．． In the blood flow pipe 38 and 39 provided with 41, the blood flow is indicated by the arrow 4.
This is an artificial heart that assists the heart 57 by allowing the blood to flow as shown in 2.
第１１図はさらに他の本発明実施例を示し、皮膚ｌの下
に埋込まれる血液ポンプ６２は、平たいケース６３の中
に柔軟なｐｌＡ６４をケース内を２分するように張設し
、膜６４の中央には永久磁石６５を固定し、ケース６３
の縁の一部には、膜６４の両側に一方向弁６６．６７．
６８．６９を設け、弁６６．６７には人血パイプ３８、
弁６８．６９には送血パイプ３９を設ける。FIG. 11 shows still another embodiment of the present invention, in which a blood pump 62 to be implanted under the skin 1 has a flexible PLA 64 stretched in a flat case 63 so as to divide the inside of the case into two, and a membrane. A permanent magnet 65 is fixed in the center of the case 63.
A part of the edge of the membrane 64 has one-way valves 66, 67 .
68 and 69 are provided, and the human blood pipe 38 is installed in the valve 66 and 67.
A blood supply pipe 39 is provided in the valves 68 and 69.
皮膚の外側に、永久磁石６５に近接するように設けた駆
動部７０の電磁石５６に、電池３６からコントロ４
一う３５を通じて脈動する電流を供給すると、永久磁石
６５および膜６４が矢印７１のごとく振遥し、これによ
りバイブ３８からパイプ３９に送血される。When a pulsating current is supplied from the battery 36 through the controller 4 to the electromagnet 56 of the drive unit 70 provided on the outside of the skin so as to be close to the permanent magnet 65, the permanent magnet 65 and membrane 64 move as shown by the arrow 71. The blood is thereby sent from the vibrator 38 to the pipe 39.
上記例の他、種々の変形はすべて本発明に含まれる。In addition to the above examples, all various modifications are included in the present invention.
本発明は次のごとき多くの著効を有するものである。The present invention has many advantages as follows.
（１）血液ポンプは体内に埋込まれて体外と隔絶してお
り、体外からの差込チューブがないので使用上安全であ
り、合併症や感染症が発生せず、患者は動き易い。(1) Blood pumps are implanted inside the body and isolated from the outside of the body, and there is no tube inserted from outside the body, so they are safe to use, do not cause complications or infections, and allow patients to move easily.
（２）埋込む血液ポンプは小型、軽量化できるので、従
来大きい人のみしか使用できなかったのが女子や小さい
大人でも使用できる。(2) Implantable blood pumps can be made smaller and lighter, so they can now be used by girls and small adults, whereas previously only large people could use them.
（３）駆！Ｉ！ｌＪａ！Ｘが体外にあるので、電源の電
池を容易に交換できる。(3) Kaku! I! lJa! Since the X is outside the body, the power source battery can be easily replaced.
（４）コンプレッサのような大型駆動源を用いないので
、人体に装着して移動できる。(4) Since it does not use a large drive source such as a compressor, it can be attached to the human body and moved.
第１図は本発明第１実施例の縦断面図
ので、人体に装着して移動できる。
第１図は本発明第１実施例の縦断面図
第２図は第１図の１−１線横断面図
第３図は本発明第２実施例の横断面図
第４図は本発明第３実施例の横断面図
第５図は本発明第３実施例の血流図
画６図は本発明第４実施例の正面図
第７図は本発明第５実施例の縦断面図
第８図は第７図の横断面図
第９図は本発明第６実施例の縦断面図
第１０図は第９図の横断面図
第１１図は本発明第７実施例の縦断面図第１２図は第１
１図の横断面図
１・・・・・・・・・皮膚
２．３３．４３．６２・・・血液ポンプ４．３７．４４
．７０・・・駆動部FIG. 1 is a longitudinal sectional view of the first embodiment of the present invention, so that it can be worn on the human body and moved. FIG. 1 is a longitudinal cross-sectional view of the first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line 1-1 in FIG. 1. FIG. 3 is a cross-sectional view of the second embodiment of the present invention. 5 is a cross-sectional view of the third embodiment of the present invention. FIG. 6 is a front view of the fourth embodiment of the present invention. FIG. 7 is a vertical cross-sectional view of the fifth embodiment of the present invention. is a cross-sectional view of FIG. 7. FIG. 9 is a vertical cross-sectional view of the sixth embodiment of the present invention. FIG. 10 is a cross-sectional view of FIG. 9. FIG. 11 is a longitudinal cross-sectional view of the seventh embodiment of the present invention. is the first
Cross-sectional view of Figure 1 1... Skin 2.33.43.62 Blood pump 4.37.44
．． 70... Drive unit
Claims (1)
前記皮膚をへだてて体外に前記ポンプの駆動部を設けた
ことを特徴とする人工心臓。After implanting the blood pump into the human body and sealing the skin,
An artificial heart characterized in that a drive unit for the pump is provided outside the body by separating the skin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1314343A JPH03176069A (en) | 1989-12-05 | 1989-12-05 | Artificial heart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1314343A JPH03176069A (en) | 1989-12-05 | 1989-12-05 | Artificial heart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03176069A true JPH03176069A (en) | 1991-07-31 |
Family
ID=18052187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1314343A Pending JPH03176069A (en) | 1989-12-05 | 1989-12-05 | Artificial heart |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03176069A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001178816A (en) * | 1999-12-27 | 2001-07-03 | Sofutoronikusu Kk | Intracorporeally implanting type artificial heart |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116348A (en) * | 1983-11-29 | 1985-06-22 | 住友電気工業株式会社 | Power source for artificial organ |
| JPS6231948A (en) * | 1985-08-01 | 1987-02-10 | Shin Kobe Electric Mach Co Ltd | Manufacture of sintered plate for alkaline storage battery |
-
1989
- 1989-12-05 JP JP1314343A patent/JPH03176069A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116348A (en) * | 1983-11-29 | 1985-06-22 | 住友電気工業株式会社 | Power source for artificial organ |
| JPS6231948A (en) * | 1985-08-01 | 1987-02-10 | Shin Kobe Electric Mach Co Ltd | Manufacture of sintered plate for alkaline storage battery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001178816A (en) * | 1999-12-27 | 2001-07-03 | Sofutoronikusu Kk | Intracorporeally implanting type artificial heart |
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