Occludable catheter

• US 5,429,616 A
• Filed: 05/31/1994
• Issued: 07/04/1995
• Est. Priority Date: 05/31/1994
• Status: Expired due to Term

• Current Assignee: David Schaffer, Michael Schaffer
• Original Assignee: Specialized Health Products, Inc. (Becton, Dickinson & Co)
• Inventors: Schaffer, David I.
• Primary Examiner(s): Hirsch, Paul J.
• Application Number:
  US08/251,092
• Time in Patent Office: 399 Days
• Field of Search: 604/167, 604/169, 604/256, 604/250, 251/4, 251/7, 251/8
• US Class Current: 604/250
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 39/284 Lever clamps

Abstract

A catheter apparatus for insertion into a blood vessel includes a tubular catheter hub, having a side wall with a side wall portion formed of deformable material, and having a proximal end, a distal end, and a mechanism for inwardly collapsing the side wall portion to occlude the apparatus, resilient sealing material contained within the catheter hub having an axially oriented opening to permit fluid communication between the proximal end and the distal end of the catheter hub, for compressing to form a seal, closing the axially oriented opening and creating a seal, and a catheter extending from the distal end, substantially coaxially with the hub. A clamping mechanism is preferably provided for inwardly collapsing the side wall portion. The clamping mechanism preferably includes two spaced apart compression flanges extending outwardly from the side wall portion for gripping and pushing toward each other to compress the sealing material and occlude the apparatus. The catheter hub side wall portion is preferably formed of a resilient plastic and the sealing material is preferably foam rubber. The compression flanges each preferably contain a stiff structural member extending into the side wall portion, for transmitting compressive force laterally from the flanges into the side wall portion to collapse the side wall portion.

Claims

1. A catheter apparatus for insertion into a blood vessel using a needle assembly comprising a needle and a needle hub, comprising:

a tubular catheter hub, having a side wall with a side wall portion formed of deformable material, and having a proximal end, a distal end, and means for inwardly collapsing said side wall portion to occlude said apparatus,

resilient sealing material contained within said catheter hub having an axially oriented opening to permit fluid communication between said proximal end and said distal end of said catheter hub, for compressing to form a seal, closing said axially oriented opening and creating a seal after removal of said needle,

a catheter extending from said distal end, substantially coaxially with said catheter hub.

2. The apparatus of claim 1, wherein said means for inwardly collapsing said side wall portion comprises clamping means.

3. The apparatus of claim 2, wherein said clamping means for inwardly collapsing said side wall portion comprises two spaced apart compression flanges extending outwardly from said side wall portion for gripping and pushing toward each other to compress said sealing material and occlude said apparatus.

4. The apparatus of claim 1, wherein said catheter hub side wall portion is formed of a resilient plastic and said sealing material is foam rubber.

5. The apparatus of claim 3, wherein said compression flanges each contain a stiff structural member extending into said side wall portion, for transmitting compressive force laterally from said flanges into said side wall portion to collapse said side wall portion.