Urethral catheter

• US 4,211,233 A
• Filed: 01/05/1978
• Issued: 07/08/1980
• Est. Priority Date: 01/05/1978
• Status: Expired due to Term

• Current Assignee: Edward D. Lin
• Original Assignee: Edward D. Lin
• Inventors: Lin, Edward D.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/867,095
• Time in Patent Office: 915 Days
• Field of Search: 128/240, 128/241, 128/265-246, 128/348, 128/349 B, 128/349 BV, 128/350 R, 128/325
• US Class Current: 604/43
• CPC Class Codes: A61M 25/1009 Balloons anchored to a disc or plate

Abstract

An elongated tube is provided defining an internal longitudinal passage therein and having a tip at its forward end. The tube includes two lateral openings formed therein closely proximal the tip opening into the passage and an inflatable body is supported from and encircles the tube proximal the lateral openings. A partially inflatable ring is supported from and encircles the tube closely proximal the body and the ring has outwardly facing openings formed therein at points spaced thereabout. First and second longitudinal passageways extend along the tube independent of the aforementioned passage and open, at their forward ends, into the body and ring, respectively.

Claims

1. A urethral catheter for thorough irrigation of a bladder, outward flushing from prostatic urethra and lubrication closely proximal to the tip during both insertion and withdrawal, said catheter comprising an elongated tube having forward and rearward ends and defining an internal longitudinal passage therein and having a tip at its forward end, said tube including a lateral opening formed therein closely spaced rearward of said tip and opening into said passage, an inflatable body supported from and encircling said tube and spaced rearward therealong from said lateral opening, an axially short partially inflatable ring supported from and encircling said tube and closely spaced along said tube rearward of said body, said ring having outwardly facing openings formed therein at points spaced thereabout, said elongated tube including means defining first and second longitudinal passageways extending therealong independent of said passage and opening, at their forward ends, into said body and ring, respectively, said elongated tube intermediate said ring and said inflatable body, including circumferential seal means extending completely thereabout and projecting outwardly therefrom for preventing upward fluid flow therepast, whereby irrigating fluids discharged from said outwardly facing ring openings will be directed downwardly therefrom for eradicating or eliminating ascending infections.

2. The combination of claim 1 wherein said tube includes a second lateral opening formed therein proximal said ring.

3. The combination of claim 1 wherein said first and second longitudinal passageways are defined by tubules supported from and extending along diametrically opposite sides of said tube on the exterior thereof.

4. The combination of claim 3 wherein the junctures of each of said tubules with said tube, at points angularly spaced thereabout define shallow outwardly opening grooves on the exterior of said tube extending along opposite sides of each of said tubules.

5. The combination of claim 1 wherein said outwardly facing openings also include openings spaced along the length of said ring.

6. The combination of claim 1, including scale means on said tube, said scale means extending longitudinally of said tube and being graduated in centimeters and millimeters.

7. A urethral catheter for thorough irrigation of a bladder, outward flushing from prostatic urethra and lubrication closely proximal to the tip during both insertion and withdrawal, said catheter comprising an elongated tube defining an internal longitudinal passage therein and having a tip at its forward end, said tube including a lateral opening formed therein closely proximal said tip and opening into said passage, an inflatable body supported from and encircling said tube proximal said lateral opening, a partially inflatable ring supported from and encircling said tube closely proximal said body, said ring having outwardly facing openings formed therein at points spaced thereabout, said elongated tube including means defining first and second longitudinal passageways extending therealong independent of said passage and opening, at their forward ends, into said body and ring, respectively, the forward end of said ring includes a soft integral generally truncated cone-shaped skirt whose proximal larger diameter end opens proximally of said ring and projects slightly outwardly beyond the outer surfaces of said ring.

8. The combination of claim 7 wherein said tube includes a second lateral opening formed therein proximal said ring.

9. The combination of claim 8 wherein said first and second longitudinal passageways are defined by tubules supported from and extending along diametrically opposite sides of said tube on the exterior thereof.

10. The combination of claim 9 wherein the junctures of each of said tubules with said tube, at points angularly spaced thereabout define shallow outwardly opening grooves on the exterior of said tube extending along opposite sides of each of said tubules.

11. The combination of claim 10 wherein said outwardly facing openings also include openings spaced along the length of said ring.