Drainage catheter

• US 6,217,556 B1
• Filed: 03/19/1998
• Issued: 04/17/2001
• Est. Priority Date: 03/19/1998
• Status: Expired due to Term

• Current Assignee: Carefusion 2200 Corporation (Becton Dickinson & Co)
• Original Assignee: Allegiance Corporation (Cardinal Health, Inc.)
• Inventors: Ellingson, Eric, Visconti, Peter, Raine, Randy, Clark, Grant, Groenke, Greg
• Primary Examiner(s): MENDEZ, MANUEL A
• Application Number:
  US09/044,561
• Time in Patent Office: 1,125 Days
• Field of Search: 604/167, 604/164, 604/169, 604/246-249, 604/256, 604/283, 604/280, 604/264, 604/905, 604/167.01, 604/167.02, 604/167.03, 604/167.04, 604/167.05, 604/167.06, 604/164-1-1
• US Class Current: 604/167.01
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence
• CPC Class Codes: A61M 2039/242 designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
• CPC Class Codes: A61M 2039/2473 Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
• CPC Class Codes: A61M 2039/248 Ball-valve
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 39/24 Check- or non-return valves

Abstract

The present invention provides a drainage catheter for the therapeutic or diagnostic aspiration of fluid or air from the thoracic or abdominal cavities. The present invention provides a catheter needle, a catheter, a needle hub, a stop cock, and a self-sealing valve. The stop cock is removably secured to the catheter by use of a Luer connection. The stop cock is additionally removably secured to the self-sealing valve, again by use of a Luer connection. Use of the Luer connection allows the catheter to be disassembled from the stop cock as well as allows the stop cock to be disassembled from the self-sealing valve. This invention allows the additional medical procedures while the catheter still remains in the patient.

Claims

1. A catheter assembly, comprising:

a catheter;

a needle removably contained within the catheter;

a first valve secured to the catheter; and

a self-sealing valve secured to the first valve;

the first valve being removably secured to the catheter, the first valve being additionally removably secured to the self-sealing valve;

whereby the catheter can be disassembled from the first valve and the first valve can be disassembled from the self-sealing valve.

2. The catheter assembly of claim 1, further wherein the first valve is removable secured by a Luer connection.

3. The catheter assembly of claim 1, further wherein the self-sealing valve is removably secured by a Luer connection.

4. The catheter assembly of claim 1, wherein the self-sealing valve comprises a biased ball check valve.

5. The catheter assembly of claim 1, wherein the first valve comprises a three way valve.

6. The catheter assembly of claim 5, wherein the three way valve is a stop cock.

8. The catheter assembly of claim 2, wherein the self-sealing valve comprises a biased ball check valve.

9. The catheter assembly of claim 2, further including a first valve removably secured to the catheter and to the self-sealing valve.

10. The catheter assembly of claim 9, further wherein the first valve is removably secured by a Luer connection.

11. The catheter assembly of claim 9, wherein the first valve comprises a three way valve.

12. The catheter assembly of claim 11, wherein the three way valve is a stop cock.

7. A catheter assembly, comprising:

a catheter comprising a Luer connection;

a needle removably contained with the catheter; and

a sealing valve comprising a Luer connection, the Luer connection of the self-sealing valve cooperating with the Luer connection of the catheter to removably secure the self-sealing valve to the catheter;

whereby the catheter can be dissembled from the self-sealing valve.