JPH01148274A - Cardiac pacemaker - Google Patents
Cardiac pacemakerInfo
- Publication number
- JPH01148274A JPH01148274A JP62305717A JP30571787A JPH01148274A JP H01148274 A JPH01148274 A JP H01148274A JP 62305717 A JP62305717 A JP 62305717A JP 30571787 A JP30571787 A JP 30571787A JP H01148274 A JPH01148274 A JP H01148274A
- Authority
- JP
- Japan
- Prior art keywords
- magnetism
- cardiac pacemaker
- effect
- functional portion
- shielding cover
- 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
- 230000000747 cardiac effect Effects 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000000638 stimulation Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 16
- 239000004020 conductor Substances 0.000 abstract 1
- 230000001846 repelling effect Effects 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Electrotherapy Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、適切な脈動を行なえなくなった患者の心臓に
、外部から電気的刺激を加えるために、患者の体内に埋
め込まれて使用される心臓ペースメーカに関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is a device implanted into a patient's body in order to externally apply electrical stimulation to the patient's heart, which is no longer able to beat properly. related to cardiac pacemakers used in
（従来の技術）
心臓ペースメーカは、心臓の不整脈の患者などに常時心
臓に電気的な刺激を与えて、適切な鼓動を行なわせるた
めに用いられる。電池や制御装置などから構成され、そ
の外面が、人間の体に無害な物質、たとえば、ステンレ
ス鋼、有機樹脂などによって覆われ、人間の体内に埋め
こまれて使用される。(Prior Art) A cardiac pacemaker is used to constantly apply electrical stimulation to the heart of a patient suffering from cardiac arrhythmia to cause it to beat appropriately. It consists of a battery, a control device, etc., and its outer surface is covered with a material that is harmless to the human body, such as stainless steel or organic resin, and is used by being implanted inside the human body.
（発明が解決しようとする問題点）
心臓ペースメーカはその構造上、磁気にさらされるとそ
の機能を発揮できないという欠点を持っている。これは
、その使用者である心臓病患者にとって重大な結果をひ
きおこしかねないものであるため、その使用者は当然の
ことながら、強磁場を発生させる装置の管理者にとって
も特別の注意を払う必要がある問題点であった。しかし
１社会一般としては、超電導応用機器が次第に広く用い
られると伴に強磁場を発生させる装置が多用されるよう
になってきており、社会全体としても、特別の対策を要
する関心事となっている。(Problems to be Solved by the Invention) Due to their structure, cardiac pacemakers have the disadvantage that they cannot perform their functions when exposed to magnetism. This can have serious consequences for the heart patients who use it, so the users, as well as the managers of devices that generate strong magnetic fields, need to take special precautions. This was a problem. However, in society as a whole, as superconducting application equipment is gradually becoming more widely used, devices that generate strong magnetic fields are also being used more frequently, and this has become a concern for society as a whole that requires special measures. There is.
本発明は、上記の点を考慮し、磁気の影響をうけにくい
心臓ペースメーカを提供することを目的とする。The present invention takes the above points into consideration and aims to provide a cardiac pacemaker that is less susceptible to magnetic influences.
（問題点を解決するための手段）
本発明の心臓ペースメーカは、その機構部を酸化物超電
導材で覆ったことを特徴とする。(Means for Solving the Problems) The cardiac pacemaker of the present invention is characterized in that its mechanism portion is covered with an oxide superconducting material.
（作 用）
このようにすると、心臓ペースメーカは超電導材の持つ
マイスナ効果によって磁気の影響を受けにくくなる。し
かし、超電導材にも耐え得る磁気の強さに限度がある（
臨界磁場）。(Function) In this way, the cardiac pacemaker becomes less susceptible to magnetic influences due to the Meissner effect of the superconducting material. However, there is a limit to the magnetic strength that even superconducting materials can withstand (
critical magnetic field).
本発明の心臓ペースメーカにおいては、超電導材のマイ
ナス効果によって磁気に反発する力が心臓ペースメーカ
に生じるため、この心臓ペースメーカを体内に埋め込ん
だ使用者（患者）は、その反発力を体で感じとることが
可能となる。使用者は心臓ペースメーカが強磁場にさら
されていることを感知し、臨界磁場を越えるような強い
磁気にさらされる前にすみやかにその場を退去すること
ができる。In the cardiac pacemaker of the present invention, a magnetic repulsive force is generated in the cardiac pacemaker due to the negative effect of the superconducting material, so the user (patient) who has this cardiac pacemaker implanted in his or her body can feel the repulsive force with his or her body. It becomes possible. The user can sense when the cardiac pacemaker is exposed to a strong magnetic field and can quickly leave the area before it is exposed to a strong magnetic field that exceeds the critical magnetic field.
（実施例） （実施例の構成） 以下、図を用いて本発明の一実施例について説明する。(Example) (Configuration of Example) An embodiment of the present invention will be described below with reference to the drawings.
心臓ペースメーカの機構部１の外周部には酸化物超電導
材からなる遮蔽カバー２が設けられ、さらにその外周部
には、人間の体に対して無害な材料からなる保護カバー
３が設けられている。A shielding cover 2 made of an oxide superconducting material is provided on the outer periphery of the mechanical part 1 of the cardiac pacemaker, and a protective cover 3 made of a material harmless to the human body is further provided on the outer periphery. .
（実施例の作用）
本実施例は以上のような構成としたため、次のように作
用する。(Operation of the embodiment) Since the present embodiment has the above-described configuration, it operates as follows.
心臓ペースメーカを体内に埋め込んだ患者が、磁気に曝
されると、その磁気の強弱に応じ、次のように作用する
。When a patient with a cardiac pacemaker implanted in their body is exposed to magnetism, the following effects occur depending on the strength of the magnetism.
■ 磁気が弱い場合
遮蔽カバー２の有するマイスナ効果によって、弱い磁気
は遮蔽されてしまい１機構部に悪影響を及ぼすことはな
い。(2) When the magnetism is weak The Meisner effect of the shielding cover 2 shields the weak magnetism and does not adversely affect the mechanism.
■ 磁気が強い場合
超電導材料はある限度（臨界磁場）を超えた強い磁場に
さらされると、常電導状態に状態が変化してしまう、す
なわち、マイスナ効果を失なってしまうため、心臓のペ
ースメーカにとって、非常に重大な事態となる。■ In the case of strong magnetism When superconducting materials are exposed to a strong magnetic field exceeding a certain limit (critical magnetic field), their state changes to a normal conductive state, in other words, they lose the Meissner effect, making them useful for cardiac pacemakers. , a very serious situation.
磁気は、一般にその発生源から離れる程、弱くなり、近
づく程、強くなる。すなわち、心臓ペースメーカの使用
者は、磁気の弱い場所から徐々に強い場所へと近づく際
に、その途中で磁気が強くなってきていることを感知で
きれば、すみやかに磁気の弱かった場所の方へ戻ること
ができる。Magnetism generally becomes weaker as you move away from its source, and becomes stronger as you approach it. In other words, when a cardiac pacemaker user gradually approaches a place with weak magnetism to a place with strong magnetism, if he or she can sense that the magnetism is getting stronger midway through the journey, he or she can quickly return to the place with weaker magnetism. be able to.
本発明による心臓ペースメーカにおいては、心臓ペース
メーカ自体が体内に埋め込まれているため、遮蔽カバー
２のマイスナ効果によって生じた磁気に対する反発力を
使用者（患者）が体で感じとることができる。このため
、磁気が、臨界磁場を越える以前に安全な場所へと退去
できる。In the cardiac pacemaker according to the present invention, since the cardiac pacemaker itself is embedded in the body, the user (patient) can feel the repulsive force against the magnetic field generated by the Meissner effect of the shielding cover 2 with his or her body. Therefore, the magnetism can be evacuated to a safe place before it exceeds the critical magnetic field.
（実施例の効果） 本実施例の心臓ペースメーカは以下の効果を有する。(Effects of Example) The cardiac pacemaker of this embodiment has the following effects.
■ 弱い磁場を遮蔽することができる。■ Can shield weak magnetic fields.
■ 強い磁場に対しては、超電導材が臨界磁場以上の強
い磁気にさらされる以前に磁気の存在を感知することに
よって、使用者がその場所から退避することができる。■ In the case of a strong magnetic field, the user can evacuate the area by sensing the presence of magnetism before the superconducting material is exposed to a strong magnetic field greater than the critical magnetic field.
本発明による心臓ペースメーカは、磁気遮蔽効果と、磁
気感知効果を有するため、磁気によって機能を失なうこ
とを防止できる。使用者（患者）にとって非常に安全な
心臓ペースメーカを提供することができる。Since the cardiac pacemaker according to the present invention has a magnetic shielding effect and a magnetic sensing effect, it can prevent loss of function due to magnetism. A cardiac pacemaker that is extremely safe for users (patients) can be provided.
図は本発明の一実施例の心臓ペースメーカの断面図であ
る。
１・・・機構部 ２・・・遮蔽カバー ３・・・保護カ
バー代理人 弁理士 則 近 憲 佑
同 第子丸 健The figure is a sectional view of a cardiac pacemaker according to an embodiment of the present invention. 1...Mechanism part 2...Shielding cover 3...Protective cover agent Patent attorney Noriyuki Ken Yudo Chika Ken Daishimaru
Claims (1)
る目的で人間の体内に埋め込まれて使用される心臓ペー
スメーカにおいて、その外周が超電導材にて覆われ、さ
らにその外側が生体に無害な材料によって覆われている
ことを特徴とする心臓ペースメーカ。A cardiac pacemaker is implanted into the human body for the purpose of providing electrical stimulation to the heart so that it pulsates at a predetermined period.The outer periphery of the cardiac pacemaker is covered with a superconducting material, and the outside is made of a material that is harmless to living organisms. A cardiac pacemaker characterized by being covered by a material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62305717A JPH01148274A (en) | 1987-12-04 | 1987-12-04 | Cardiac pacemaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62305717A JPH01148274A (en) | 1987-12-04 | 1987-12-04 | Cardiac pacemaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01148274A true JPH01148274A (en) | 1989-06-09 |
Family
ID=17948500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62305717A Pending JPH01148274A (en) | 1987-12-04 | 1987-12-04 | Cardiac pacemaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01148274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010535585A (en) * | 2007-08-04 | 2010-11-25 | キャメロン ヘルス、 インコーポレイテッド | Electromagnetic interference shielding in implantable medical devices |
-
1987
- 1987-12-04 JP JP62305717A patent/JPH01148274A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010535585A (en) * | 2007-08-04 | 2010-11-25 | キャメロン ヘルス、 インコーポレイテッド | Electromagnetic interference shielding in implantable medical devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6324430B1 (en) | Magnetic shield for primary coil of transcutaneous energy transfer device | |
| US2842129A (en) | Voiding shorts for incontinent people | |
| PL313937A1 (en) | Clothing for application of controlled electric stimulation in order to restore impaired motorial function of an organ | |
| US3490442A (en) | Electrode with contact-forming suction cup means | |
| DE69431281D1 (en) | HEART PACER WITH ELECTRODE AND INTEGRATED OXYGEN SENSOR | |
| NO972498D0 (en) | Device for delivery of active agents by electrotransport | |
| IT1129634B (en) | MEDICAL EQUIPMENT FOR THE CONTROL AND / OR RECORDING OF THE BODY MOVEMENTS OF A PERSON FOR EXAMPLE A PATIENT, IN A BED | |
| GR3019676T3 (en) | Transdermal perfusion of fluids | |
| Erdogan | Electromagnetic interference on pacemakers | |
| DE60029547D1 (en) | Active implantable medical device, in particular multi-digit cardiac stimulator, defibrillator and / or cardioverter, with means for detecting induced tachycardia | |
| JPH01148274A (en) | Cardiac pacemaker | |
| US6749859B2 (en) | Topical compositions and glove for protection against radiation exposure | |
| Hopkins | Patterns of self-destruction among the orthopedically disabled. | |
| Peran et al. | Bystander hit by leakage current from S-ICD | |
| CN218009955U (en) | A spread piece of cloth for central venous catheter maintains | |
| Bernhardt | Evaluation of human exposures to low frequency fields | |
| CN214907178U (en) | Protection device for be used for nuclear medicine branch of academic or vocational study radiation source | |
| CN209884179U (en) | Medical plumbous clothing protection muffler | |
| CN208852238U (en) | A kind of integral type radiopharmaceutical syringe protective sleeve | |
| Gralnick | A psychiatric hospital's effect on a psychoanalyst's work. | |
| CN207520410U (en) | A kind of indwelling needle-protecting sleeve | |
| Stoffelmayr et al. | Maintenance of staff behavior. | |
| Johnson | A research brief: The sexual concerns of the cancer patient and his or her spouse. | |
| ROGOZKIN et al. | Effectiveness of administration of amytetravite and ATP during prolonged irradiation(effectiveness of prophylactic antiradiation drugs) | |
| Barr | The problem of evaluating the effectiveness of therapeutic communities. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |