Bloodless insertion catheter assembly

• US 5,352,205 A
• Filed: 09/16/1993
• Issued: 10/04/1994
• Est. Priority Date: 09/16/1993
• Status: Expired due to Fees

• Current Assignee: Elsa A. Dales, Lawrence Dales
• Original Assignee: Elsa A. Dales, Lawrence Dales
• Inventors: Dales, Lawrence, Dales, Elsa A.
• Primary Examiner(s): Hirsch, Paul J.
• Application Number:
  US08/121,706
• Time in Patent Office: 383 Days
• Field of Search: 604/158, 604/164, 604/167, 604/165, 604/168, 604/256, 604/198
• US Class Current: 604/158
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
• CPC Class Codes: A61M 25/0637 Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin

Abstract

A catheter assembly having a catheter of flexible plastic tubing secured at one end to a catheter hub, a hollow adaptor body with a distal end for fluid tight connection to the catheter hub and in fluid communication therewith. The proximal end of the adaptor body includes a self closing elastomeric gasket valve member. An introducer needle is provided proportioned to extend through the catheter, hub and tubing for penetration of a patient'"'"'s vein for introducing the catheter into the vein. The proximal end of the needle is secured to a plastic collar having proximal and distal ends and dogs at the proximal end for limiting slidable movement within a hollow cylindrical container. A sealable gasket closure at the distal end of the container safely encloses the needle within the container upon withdrawal of the needle. The assembly further includes a curved plastic transparent tube having a filter valve therein extending from the proximal end of the collar for sighting flashback. The valve allows air flow but prevents fluid flow. An adaptor unit connects to the hub, the adaptor unit having a hollow shaft with a sharp end, and ports on its side walls. The shaft is proportioned to pierce said gasket valve member in the adaptor body to place the adaptor body and the adaptor unit in flow communication.

Claims

1. A catheter assembly comprising a catheter of flexible plastic tubing secured at one end to a catheter hub, a hollow adaptor body with a distal end for fluid tight connection to said catheter hub and in fluid communication therewith, the proximal end of said adaptor body having a self-closing elastomeric gasket valve member, an introducer needle proportioned so as the sharpened distal end thereof penetrates said gasket valve member and when in extended position extends through said hollow catheter body, hub, and catheter tubing for penetration of a patient'"'"'s vein to introduce said catheter into said vein, the proximal end of said introducer needle secured in flow communication to a plastic collar having a distal and proximal end, and slidable within a hollow cylindrical container, said collar having dogs at the proximal end thereof to engage the rear wall of said cylindrical container to stop rearward movement, a sealable gasket closure at the distal end of cylindrical container to safely enclose the sharp end of said introducer needle within said cylindrical container upon withdrawal, a curved transparent plastic tube extending from the proximal end of said plastic collar for sighting blood flash back, said tube having a filter valve in the end thereof to allow passage of air, but preclude passage of liquids, and an adaptor unit connectable to said adaptor body, said adapter unit having a hollow shaft at its distal end, said hollow shaft having a sharp end, and ports on its side walls said hollow shaft proportioned to pierce said gasket valve member in said adaptor body to place said adaptor body and said adapter unit in flow communication, the proximal end of said adaptor unit adapted to be connected in flow communication with IV tubing.

2. An assembly as claimed in claim 1 wherein said cylindrical body has lateral wings thereon.