DE319090C - Electromagnet for removing foreign bodies from body parts - Google Patents

Electromagnet for removing foreign bodies from body parts

Info

Publication number
DE319090C
DE319090C DENDAT319090D DE319090DD DE319090C DE 319090 C DE319090 C DE 319090C DE NDAT319090 D DENDAT319090 D DE NDAT319090D DE 319090D D DE319090D D DE 319090DD DE 319090 C DE319090 C DE 319090C
Authority
DE
Germany
Prior art keywords
electromagnet
body parts
foreign bodies
removing foreign
eye
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.)
Expired
Application number
DENDAT319090D
Other languages
German (de)
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.)
Reiniger Gebbert & Schall AG
Original Assignee
Reiniger Gebbert & Schall AG
Publication date
Application granted granted Critical
Publication of DE319090C publication Critical patent/DE319090C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/50Instruments, other than pincettes or toothpicks, for removing foreign bodies from the human body
    • A61B17/52Magnets

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Treatment Devices (AREA)

Description

-Elektromagnet zum Entfernen von Fremdkörpern aus Körperteilen. Beim Herausziehen in das Auge oder in andere Körperteile eingedrungener ferromagne= tischer Fremdkörper mittels eines an den Körperteil herangebrachten Magneten ist es erwünscht, daß das von dem Magneten in das Körperinnere entsandte Kraftlinienbündel zugleich möglichst große Intensität und möglichst geringen Querschnitt- aufweist und es so ermöglicht, den Fremdkörper bei seiner Herausbewegung aus dem _ Körperteil einen bestimmten, ihm durch Bewegen des .Magneten vorzuschreibenden Weg zurücklegen zu lassen. Beispielsweise kommt es bei Fremdkörpern im Auge, die, wie dies häufig, zumal bei Geschoßsplittern, der Fall eist, tief in das Innere des Auges eingedrungen sind, darauf an, sie beim Herausziehen so zu führen, daß ihr Weg aus dem Auge heraus die Kristallinse umgeht. Diese Aufgabe wird durch die Erfindung gelöst.-Electromagnet for removing foreign objects from body parts. At the Pulling out ferromagnetic rods that have penetrated into the eye or other parts of the body Foreign bodies by means of a magnet brought to the body part, it is desirable that the bundle of lines of force sent by the magnet into the body is at the same time The greatest possible intensity and the smallest possible cross-section - and it is like that allows the foreign body to move out of the body part certain path to be covered by moving the magnet permit. For example, foreign bodies in the eye that, as is often the case, Especially with bullet fragments, which is the case, penetrated deep into the interior of the eye try to guide them when pulling them out so that their way out of the eye bypasses the crystalline lens. This object is achieved by the invention.

Der neue Elektromagnet weist, ähnlich wie dies an sich für einen anderen Zweck, nämlich zum Festhalten auswechselbarer Polschuhe bei Elektromagneten, bereits vorgeschlagen worden ist, eine seinen zum Herausziehen der Fremdkörper dienenden Pol; diesen eng umgebend, frei lassende Blende auf, die aber gemäß der Erfindung aus gut elektrisch leitendem Stoffe, etwa Kupfer besteht. Bei Anwendung eines seine Stärke ändernden Betriebsstromes, beispielsweise schon des Stromes einer Gleichstromdynamo, für die Wicklung des Elektromagneten entstehen dann Wirbelströme in der Blende, und diese übt in an sich bekannter Weise magnetische Schirmwirkung aus, drängt die magnetischen Kraftlinien nach der Mitte hin zusammen, so daß praktisch nur durch die mittlere Öffnung der Blende Kraftlinien, und zwar mit vergrößerter Dichte, aus dem Elektromagneten austreten.The new electromagnet points, much like this in itself for another Purpose, namely to hold replaceable pole pieces in electromagnets, already has been proposed, one of its serving to pull out the foreign body Pole; this closely surrounding, free leaving aperture, but according to the invention consists of materials that conduct electricity well, such as copper. When applying one of his Strength of changing operating current, for example the current of a direct current dynamo, eddy currents then arise in the diaphragm for the winding of the electromagnet, and this exerts a magnetic shielding effect in a manner known per se, urges the magnetic lines of force towards the center together, so that practically only through the central opening of the diaphragm lines of force, with increased density emerge from the electromagnet.

Eine beispielsweise Ausführungsform des neuen Elektromagneten ist in der Zeichnung im Längsschnitt schematisch dargestellt. Die den ferromagnetischen Kern a magnetisierende Wicklung b wird an ihrem vorderen Ende von der haubenförmig gestalteten Blende c umgeben, die in der Mitte offen ist, um den Magnetpol d hindurchtreten zu lassen. Die Außenfläche der Blende c ist zweckmäßig, wie hier, kegelstumpfförmig gestaltet, um das Auge oder die sonst in Frage kommenden Körperteile nicht zu verdecken und ihre Beobachtung während der `Anwendung zu ermöglichen. Vorteilhaft ist ferner die Blende c abnehmbar, etwa wie hier (bei e) durch Verschraubung befestigt, wodurch die Sterilisation der Einrichtung erleichtert wird.An example embodiment of the new electromagnet is shown schematically in the drawing in longitudinal section. The ferromagnetic Core a magnetizing winding b is dome-shaped at its front end Shaped aperture c surrounded, which is open in the middle to pass through the magnetic pole d allow. The outer surface of the diaphragm c is expediently, as here, frustoconical designed so as not to obscure the eye or the otherwise relevant body parts and to enable their observation during the `application. It is also advantageous the cover c removable, approximately as here (at e) fastened by screwing, whereby the sterilization of the device is facilitated.

Claims (1)

PATENTANSPRUCH: Elektromagnet zum Entfernen von Fremdkörpern aus Körperteilen mit einer seinen Pol, diesen frei lassend, umgebenden Blende, dadurch gekennzeichnet; daß die Blende aus gut elektrisch leitendem Stoffe besteht. Claim: Electromagnet for removing foreign bodies from body parts with a screen surrounding its pole, leaving it free, characterized; that the diaphragm is made of materials that conduct electricity well.
DENDAT319090D Electromagnet for removing foreign bodies from body parts Expired DE319090C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE319090T

Publications (1)

Publication Number Publication Date
DE319090C true DE319090C (en) 1920-02-24

Family

ID=6151513

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT319090D Expired DE319090C (en) Electromagnet for removing foreign bodies from body parts

Country Status (1)

Country Link
DE (1) DE319090C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420004A (en) * 1943-08-07 1947-05-06 Mull Raymond Arthur Surgical instrument
US2436538A (en) * 1944-07-14 1948-02-24 California Magnet Company Electromagnetic surgical probing instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420004A (en) * 1943-08-07 1947-05-06 Mull Raymond Arthur Surgical instrument
US2436538A (en) * 1944-07-14 1948-02-24 California Magnet Company Electromagnetic surgical probing instrument

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