A combination catheter and drainage system includes a flexible tubular member oligodynamically treated in part and having an aperture adjacent said one end to allow communication between a main lumen and the exterior of the tubular member, a balloon being provided adjacent the aperture and an auxiliary lumen being connected to the main lumen for inflating the balloon and a urine collecting bag connected to the tubular member via a connector means which is oligodynamically treated. The collecting...

A catheter comprising, an extruded tube having a drainage lumen and inflation lumen, with the inflation lumen communicating with the outside of the tube through opening means. The catheter has a tip secured to a distal end of the tube, and an annular sleeve extending from the tip and having a proximal end secured to the outside of the tube.

A catheter comprising, an extruded tube having a drainage lumen and inflation lumen, with the inflation lumen communicating with the outside of the tube through opening means. The catheter has a tip secured to a distal end of the tube, and an annular sleeve extending from the tip and having a proximal end secured to the outside of the tube. This application is a division of application Ser. No. 146,421, filed May 5, 1980 and now U.S. Pat. No. 4,361,152, issued Nov. 30, 1982, which is a continuat...

A catheter including a support suitable for insertion into a body organ, a transducer carried by the support, the transducer including a flexible piezoelectric polymeric membrane, and a pair of surface electrodes mounted on the membrane, the support including a rigid portion defining a flexure cavity inside the catheter, the membrane being mounted on the rigid support portion to permit free flexing of the membrane into and out of the cavity, one surface of the membrane communicating with the cav...

A catheter includes an elongated tubular member having a closed distal end, an open proximal end and a maximum outer diameter of 2 mm; exactly two longitudinally extending slits of unequal lengths in the tubular member adjacent the distal end thereof, which form two distortable strands; a flexible wire secured to the distal end and extending inside the tubular member towards the proximal end thereof for retracting the distal end with respect to the proximal end; and an obturator secured to the f...

A catheter for puncturing blood vessels, particularly for vein punctures for hemo-dialysis. A section is insertable through a puncture opening into a blood vessel and a hose line following thereafter. The arrangement is in form of a double catheter in which two single catheters are associated for relative lengthwise movement by means of a longitudinal guide.

A catheter intended to be inserted in a body duct, vessel or cavity in order to maintain the passage of liquid, gas or solid substances. The catheter (1) is made of plastic. The catheter (1) is characterized in that it is provided with an outer casing (2-5), which entirely or partially covers the cathether (1) and consists of a hydrophilic plastic substance capable of absorbing liquid and thereby to increase its volume, i.e. to swell, so that the catheter (1) maintains its position after its ins...

A catheter comprising, an elongated inner first tube defining a main lumen, an elongated annular sleeve of elastic material covering a longitudinal portion of the first tube, and an elongated outer second tube covering a longitudinal portion of the sleeve and having a distal end proximally spaced from a distal end of the sleeve. The catheter has a tip secured to a distal end of the first tube and having a proximally extending annular flange covering the distal end of the sleeve, with the distal ...

The invention is a permanent catheter for use in the practice of peritoneal dialysis. It has a bead on the tube that, in use, underlies the peritoneum and a cuff made of a fibrous material that has a disc that overlies the peritoneum and forms a scar tissue as a seal.

An improved Foley-type urethal catheter is formed from silicone rubber. The tip of the catheter is molded in one integral piece to include drainage eyes and a rearwardly extending balloon portion. The rubber of the balloon portion is substantially more elastic than the tip. The trailing portion of the catheter includes an elongated tubular body attached to and extending rearwardly from the tip and to which the rear end of the balloon portion of the tip is attached. A drainage lumen extends from ...