Ureteral catheter device

• US 3,886,933 A
• Filed: 10/10/1973
• Issued: 06/03/1975
• Est. Priority Date: 10/10/1973
• Status: Expired due to Term

• Current Assignee: Kunio Kinoshita, Toshiyuki Mori
• Original Assignee: Kunio Kinoshita, Toshiyuki Mori
• Inventors: Mori, Toshiyuki, Kinoshita, Kunio
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Layton, Henry S.
• Application Number:
  US05/404,992
• Time in Patent Office: 601 Days
• Field of Search: 128/4,5,6,7,328
• US Class Current: 600/135
• CPC Class Codes: A61B 1/00098 Deflecting means for inserted tools
• CPC Class Codes: A61B 1/002 having rod-lens arrangements A61B1/055 takes precedence
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/307 for the urinary organs, e.g. urethroscopes, cystoscopes

Abstract

A ureteral catheter device has a flexible guide tube insertible through a control body of a cystoscope into a bladder so that its forward end extends into the bladder and a small-diametered tube insertible through the control body into the guide tube so that its forward end extends through the forward end of the guide tube into a ureter. The guide tube is adapted to be inserted into the ureter with the small-diametered tube as a guide. After the small-diametered tube is withdrawn, treatment devices can be sequentially inserted for medical treatment.

Claims

1. A ureteral catheter device comprising a cystoscope including an insert body insertible into the human body, a control body positioned outside the human body, an observation optical system for permitting the interior of a bladder to be observed outside the human body and an illumination optical system for illuminating the interior of the bladder;

a flexible guide tube adapted to be inserted through the control body into the cystoscope, the forward end of said flexible guide tube being extendible through said insert body; and

a flexible elongated member adapted to be removably inserted through the guide tube and extended through the forward end of the flexible guide tube into the interior of a ureter whereby said guide tube can be further inserted with the elongated member as a guide to permit its forward end to project into the interior of the ureter.

2. The ureteral catheter device according to claim 1 in which said cystoscope has means for adjusting the inclination angle of the forward end portion of the guide tube at the control body.

3. The ureteral catheter device according to claim 1 in which said elongated member is a tube having a rounded forward end, the forward end portion of the member being more flexible than the remaining portion thereof.

4. The ureteral catheter device according to claim 1 in which said guide tube has a discharge opening provided in the side wall thereof in the neighborhood of the forward end thereof.