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Catheter

  • US 3,119,392 A
  • Filed: 02/14/1961
  • Issued: 01/28/1964
  • Est. Priority Date: 02/14/1961
  • Status: Expired due to Term
First Claim
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1. A DEVICE FOR REMOVING STONES IN THE URETER OF A PATIENT COMPRISING A CYSTOSCOPE HAVING AN EXTERIOR END ADAPTED TO BE DISPOSED EXTERIOR OF THE PATIENT AND AN ELONGATION OF THE TUBE FOR THE ENTIRE LENGTH OF THE TUBE, SAID STRIPE BEING AT A KNOWN ORIENTION RELATIVE TO THE APERTURE IN THE TUBE, WHEREBY THE TUBE MAY BE INSERTED INTO THE URETER BY MANIPULATING THE TUBE EXTERIOR OF THE PATIENT AND THE ROTATIONAL POSITION OF THE TUBE IN THE CONTROLLED AT THE MOUTH OF THEURETER BY VIEWING THE LOCATION OF THE STRIP AT THE MOUTH OF THE URETER THROUGH THE OPTICAL SYSTEM OF THE CYSTOSCOPE FOR THE PURPOSE OF LOCATING THE LOOP OF THE CATHETER RELATIVE TO THE POSITION OF THE STONE.

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