JPH1119208A - Cardiac auxiliary device outside epicardium - Google Patents

Cardiac auxiliary device outside epicardium

Info

Publication number
JPH1119208A
JPH1119208A JP9212418A JP21241897A JPH1119208A JP H1119208 A JPH1119208 A JP H1119208A JP 9212418 A JP9212418 A JP 9212418A JP 21241897 A JP21241897 A JP 21241897A JP H1119208 A JPH1119208 A JP H1119208A
Authority
JP
Japan
Prior art keywords
heart
cardiac
artificial
balloon
epicardium
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
Application number
JP9212418A
Other languages
Japanese (ja)
Inventor
Tatsunori Kimura
龍範 木村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP9212418A priority Critical patent/JPH1119208A/en
Publication of JPH1119208A publication Critical patent/JPH1119208A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To develop a cardiac auxiliary device (artificial heart) causing no thrombus. SOLUTION: An artificial pericardium 2 is sewn to the outside the heart 1 (epicardium) and a balloon 3 of the capacity 40 cc is laid between the heart and the artificial pericardium so that a heart, auxiliary device (artificial heart) causing no thrombus is provide. This device is synchronized with the cardiac beat and constricted/dilated so as to assist the cardiac systole. That is to say, compressed air is fed to the balloon from a drive in a cardiac systole corresponding to the agitation sensed by an electrode, the air in the balloon is forcedly emitted in a cardiac diastole, and a cardiac output of the heart is increased from the outside the heart so that the cardiac systole is assisted.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、心臓移植を待ち
望むような、著しく機能の低下した心臓に対して装着す
ることで、心臓機能の補助を目的とした装置に関するも
のである。恒久的な人工心臓の役割を果たす可能性もあ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device intended for assisting heart function by being worn on a heart whose function has been greatly reduced, for which a heart transplant is expected. It can also serve as a permanent artificial heart.

【０００２】[0002]

【従来の技術】従来の心臓補助装置、もしくは、人工心
臓は、血液に直接接するため、血栓性という点で問題が
あった。2. Description of the Related Art Conventional heart assist devices or artificial hearts have a problem in terms of thrombotic properties because they are in direct contact with blood.

【０００３】[0003]

【発明が解決しようとする課題】したがって、各メーカ
ーとも、心臓補助装置、人工心臓に、莫大な研究費と試
作費を費やして研究したが、解決しなかった。本発明
は、こうした問題を解決し、心臓移植を待ち望む心不全
患者のために発明されたものである。Therefore, each of the manufacturers has spent enormous research and production costs on the heart assist device and the artificial heart, but has not solved the problem. The present invention solves these problems and has been invented for heart failure patients who are waiting for a heart transplant.

【０００４】[0004]

【課題を解決するための手段】まず、心臓の外（血液に
直接接しないところ）に人工物（人工心膜２、風船３）
を置くことにより、血栓性という問題を解決した。First, an artificial object (artificial pericardium 2, balloon 3) is placed outside the heart (where it does not come into direct contact with blood).
To solve the problem of thrombosis.

【０００５】[0005]

【発明の実施の形態】次に、発明の実施の形態を述べる
と、心外膜の外に人工心膜を縫着し、心外膜と人工心膜
の間に風船を置き、これを心拍と同期させ、収縮、拡張
させることで心臓の収縮を補助する装置である。すなわ
ち、電極で感知した心臓の興奮に合わせて心臓収縮期に
駆動装置から風船内に圧縮空気を送り込み、心臓拡張期
に風船内の空気を強制的に排出することで、心臓の外か
ら、心臓の１回心拍出量を増加させることにより、心臓
の収縮を補助するものである。人工心膜は左心室のみに
縫着することにより、左心補助のみを目的としたり、風
船を、左心室側と右心室側の両方に２つ置くことによ
り、両心不全に対応することにも応用される。BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described. An artificial pericardium is sewn out of the epicardium, a balloon is placed between the epicardium and the artificial pericardium, It is a device that assists the contraction of the heart by contracting and expanding in synchronization with the heart. That is, by sending compressed air into the balloon from the driving device during systole in accordance with the excitement of the heart sensed by the electrodes, and forcibly discharging air from the balloon during diastole, the heart can be moved from outside the heart. By increasing the single cardiac output, the contraction of the heart is assisted. The artificial pericardium is sewn only to the left ventricle to aim at the left heart only, or by placing two balloons on both the left ventricle side and the right ventricle side to cope with bilateral heart failure Applied.

【０００６】[0006]

【発明の効果】心臓の１回心拍出量を増加させることに
より、心臓の機能は改善される。さらに、自己心拍に同
期させることから、より生理的な心機能となり、生活の
質の向上をもたらすものと思われる。The function of the heart is improved by increasing the stroke volume of the heart. Furthermore, it is thought that by synchronizing with the self-heartbeat, a more physiological heart function is obtained, and the quality of life is improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】人工心膜を縫着している図である。FIG. 1 is a view showing an artificial pericardium being sewn.

【図２】本発明の装着中の斜視図である。FIG. 2 is a perspective view during mounting of the present invention.

【図３】本発明の装着中の断面図である。FIG. 3 is a cross-sectional view during mounting of the present invention.

【符号の説明】[Explanation of symbols]

（１）は心臓、（２）は人工心膜、（３）は風船、
（４）は電極、（５）は駆動装置である。(1) is a heart, (2) is an artificial pericardium, (3) is a balloon,
(4) is an electrode, and (5) is a driving device.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】（イ）人工の非拡張性の心膜２を心臓（心
室）１の表面に縫着する。 （ロ）心外膜（心臓表面）１と人工心膜２の間に容量４
０ｃｃ以上の風船３を置く。 （ハ）風船３は管で体外に誘導され、駆動装置５に接続
する。 （ニ）電極４を心臓１に刺入し、その他端を駆動装置に
接続する。 以上のごとく構成された、心臓の収縮を補助する装置で
ある。(1) An artificial non-expandable pericardium 2 is sewn to the surface of a heart (ventricle) 1. (B) Volume 4 between epicardium (heart surface) 1 and artificial pericardium 2
Place a balloon 3 of 0 cc or more. (C) The balloon 3 is guided out of the body by a tube, and is connected to the driving device 5. (D) The electrode 4 is inserted into the heart 1 and the other end is connected to the driving device. An apparatus configured to assist the contraction of the heart as described above.
JP9212418A 1997-07-01 1997-07-01 Cardiac auxiliary device outside epicardium Pending JPH1119208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9212418A JPH1119208A (en) 1997-07-01 1997-07-01 Cardiac auxiliary device outside epicardium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9212418A JPH1119208A (en) 1997-07-01 1997-07-01 Cardiac auxiliary device outside epicardium

Publications (1)

Publication Number Publication Date
JPH1119208A true JPH1119208A (en) 1999-01-26

Family

ID=16622267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9212418A Pending JPH1119208A (en) 1997-07-01 1997-07-01 Cardiac auxiliary device outside epicardium

Country Status (1)

Country Link
JP (1) JPH1119208A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011500295A (en) * 2008-01-08 2011-01-06 台湾国立成功大学 Heart compression system
CN113230533A (en) * 2021-06-07 2021-08-10 卫洪超 Power pump type artificial intelligence heart

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011500295A (en) * 2008-01-08 2011-01-06 台湾国立成功大学 Heart compression system
CN113230533A (en) * 2021-06-07 2021-08-10 卫洪超 Power pump type artificial intelligence heart

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