Urinary tract catheter

• US 20080071250A1
• Filed: 11/14/2007
• Published: 03/20/2008
• Est. Priority Date: 04/03/2003
• Status: Abandoned Application

• Current Assignee: Envita II, LLC
• Original Assignee: Envita II, LLC
• Inventors: Crisp, William
• Application Number:
  US11/985,401
• Publication Number:
  US 20080071250A1
• Time in Patent Office: Days
• US Class Current: 604/544
• CPC Class Codes: A61M 25/0017 specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence

Abstract

A urinary catheter is provided that reduces the likelihood of infection. The catheter includes a distal end positioned in a bladder. The distal end utilizes an inflated balloon that is positioned in the bladder to prevent removal of the distal end of the catheter from the bladder. The balloon, when inflated, contacts areas of the bladder that are spaced away from the urethral opening and from the trigone in the bladder. Urine drainage openings are formed in the distal end, are positioned laterally from the balloon, and can extend down to the inner surface of the bladder to facilitate drainage of urine from the bladder formed takes on a tapered configuration that reduces pressure on the trigone. The catheter incorporates one-way valves which function to make the catheter a close system that minimizes the risk of infection. Spaced apart concentrations of silver and zinc are incorporated on the inner and outer surfaces of the catheter to further reduce the risk of infection.

Claims

1. In combination with a urinary tract including

a bladder including

a trigone,

ureters,

an internal wall surface, and

an internal orifice, and

a urethra, the urethra opening into and having a top located at the bladder, the improvements comprising a catheter system to drain urine from the bladder while minimizing the likelihood of infection and of discomfort to the urinary tract, said improvements comprising

(a) a urine collection container;

(b) an elongate pliable tube unit having

(i) a distal end in the bladder and including

at least one inflated balloon contacting the internal wall surface of the bladder at points spaced apart from the top of the urethra, and

at least one drainage opening positioned laterally from said balloon to drain urine from the bladder,

(ii) a proximate end connected to said urine collection container,

(iii) an intermediate section interconnecting said distal end and said proximate end and at least partially extending through the urethra,

(iv) an inner surface, and

(v) an outer surface.

2. The combination of claim 1 wherein said balloon contacts the internal wall surface at points spaced apart both from the top of the urethra and the trigone.

3. The combination of claim 1 wherein said drainage opening extends to points adjacent the interior wall surface of the bladder to facilitate complete drainage of urine from the bladder.

4. The combination of claim 1 including at least one area of zinc and one area of silver spaced apart from said zinc area on said inner surface to create electrical current between said areas when said areas are connected by an electrically conductive liquid bridge.

5. The combination of claim 1 including at least one area of zinc and one area of silver spaced apart from said zinc area to create electrical current between said areas when said areas connected by an electrically conductive liquid bridge.

10. The combination of claim 1 including at least one area of zinc and one area of silver spaced apart from said zinc area to create electrical current between said areas when said areas connected by an electrically conductive liquid bridge.

6. In combination with a urinary tract including

a bladder including

a trigone,

ureters,

an internal wall surface, and

an internal orifice, and

a urethra, the urethra opening into and having a top located at the bladder, the improvements comprising a catheter system to drain urine from the bladder while minimizing the likelihood of infection and of discomfort to the urinary tract, said improvements comprising

(a) a urine collection container;

(b) an elongate pliable tube unit having

(i) a distal end in the bladder and including

at least one inflated balloon contacting the internal wall surface of the bladder at points spaced apart from the top of the urethra, and

at least one drainage opening extending downwardly from said balloon to drain urine from the bladder,

(ii) a proximate end connected to said urine collection container,

(iii) an intermediate section interconnecting said distal end and said proximate

end and at least partially extending through the urethra,

(iv) an inner surface, and

(v) an outer surface.

7. The combination of claim 6 wherein said balloon contacts the internal wall surface at points spaced apart both from the top of the urethra and the trigone.

8. The combination of claim 6 wherein said drainage opening extends to points adjacent the interior wall surface of the bladder to facilitate complete drainage of urine from the bladder.

9. The combination of claim 6 including at least one area of zinc and one area of silver spaced apart from said zinc area on said inner surface to create electrical current between said areas when said areas are connected by an electrically conductive liquid bridge.