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GASTROINTESTINAL CATHETER

  • US 3,794,041 A
  • Filed: 11/30/1971
  • Issued: 02/26/1974
  • Est. Priority Date: 11/30/1971
  • Status: Expired due to Term
First Claim
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1. Magnetic apparatus insertable into a body cavity, for displacement of internal body organs from a region of applied radiation by means of a magnet disposed externally of the body, characterized in that it is of elongated shape, flexible and includes an elongated flexible tubular member of substantially inert resilient biologically acceptable material;

  • a plurality of ellipsoidal beads of soft iron having major and minor axes substantially in a 2;

    1 ratio respectively, axially disposed with their major axes parallel to the longitudinal axis of said tubular membEr and in closely adjacent spaced relationship therein over a substantial length thereof, said soft iron ellipsoidal beads being fixed in said spaced relationship by said resiliency of said flexible tubular member;

    said magnetic apparatus being adapted when inserted into the cavity of a body part, to be uniformly and unidirectionally attracted by a magnet external of the body for desired displacement of said body part as aforesaid substantially without the application of torque to said beads.

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