Stickless catheter with manual shut-off valve

• US 5,108,374 A
• Filed: 05/02/1990
• Issued: 04/28/1992
• Est. Priority Date: 05/02/1990
• Status: Expired due to Term

• Current Assignee: Medex Incorporated (Smiths Group International Holdings Ltd.)
• Original Assignee: Critikon, Inc. (Johnson & Johnson)
• Inventors: Lemieux, Francis P.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): MENDEZ, MANUEL A
• Application Number:
  US07/517,996
• Time in Patent Office: 727 Days
• Field of Search: 604/164, 604/167, 604/169, 604/192, 604/198, 604/263, 604/264, 604/280, 604/245, 604/246, 604/250, 604/119, 604/30, 604/31, 604/32, 604/33, 604/34
• US Class Current: 604/167.01
• CPC Class Codes: A61M 39/28 Clamping means for squeezing flexible tubes, e.g. roller clamps tube strippers A61M1/83

Abstract

A catheter device is described with a safety needle guard that covers and protects the needle after use of the device. The device includes a semi-tubular needle housing containing a flash chamber with a hollow needle extending from the distal end of the flash chamber. A tubular needle guard concentrically fits and slides within the needle housing. The needle guard has a longitudinal slot through which the mounting base of the flash chamber passes as the guard slides within the housing. The top of the semi-tubular housing is open so that a user may access the top of the tubular needle guard with a finger to urge the needle guard to an extended position from the distal end of the housing and in a surrounding position about the needle. The proximal end or hose of the needle guard detaches for the needle housing and has a luer fitting for an infusion set. The catheter hub contains a lever capable of occluding the catheter to inhibit fluid flow.

Claims

1. A catheter assembly comprising:

a catheter attached to a catheter hub;

a hollow needle extending into said catheter and catheter hub and removable from said catheter; and

occludable means on said catheter hub for preventing fluid flow through said catheter, wherein said occludable means includes a lever pivotable about said catheter hub and capable of occluding said catheter;

and further including means for inserting said lever through said catheter hub and into said catheter.

2. The catheter assembly of claim 1, wherein said catheter and catheter hub are tubular and concentric.

3. The catheter assembly of claim 2, wherein said lever is spring-loaded so that in its normal position said lever does not occlude said catheter.

4. The catheter assembly of claim 3, wherein said lever further includes a tab insertable through said means in said catheter assembly such that such tab occludes said catheter.

5. The catheter assembly of claim 1, wherein said catheter is formed from a material having a memory so that when said occludable means does not occlude said catheter, said catheter returns to a position permitting fluid flow.

6. The catheter assembly of claim 5, where said material is polyurethane.

7. A catheter assembly comprising:

a needle housing having a hollow needle extending from the distal end thereof;

a needle guard slideably located within said needle housing and including an aperture at its distal end for passage of said hollow needle therethrough;

a catheter and catheter hub assembly suitable for mounting on the distal end of said needle guard; and

means for occluding said catheter through said catheter hub in order to prevent fluid flow through said catheter wherein said occluding means includes a lever mounted on said catheter hub, and capable of occluding said catheter.

8. The assembly of claim 7, wherein said lever is capable of occluding said catheter through a hole in said catheter hub.

9. The assembly of claim 8, wherein said lever is spring-loaded on said catheter hub.

10. The assembly of claim 9, wherein said lever contains a tab located proximal said catheter and capable of occluding said catheter. PG,20

11. The assembly of claim 7, wherein said catheter is formed from a material having a memory, such that when not occluded said material remains in a position permitting fluid flow.

12. The assembly of claim 11, wherein said material is polyurethane.

13. The assembly of claim 10, wherein said catheter hub contains a post around which said lever rotates.