Infusion apparatus

• US 4,445,893 A
• Filed: 05/13/1982
• Issued: 05/01/1984
• Est. Priority Date: 05/13/1982
• Status: Expired due to Term

• Current Assignee: Sherwood Services AG
• Original Assignee: Sherwood Medical Company (Medtronic Plc)
• Inventors: Bodicky, Raymond O.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Lester, Michelle N.
• Application Number:
  US06/377,761
• Time in Patent Office: 719 Days
• Field of Search: 604/51-53, 604/93, 604/164-166, 604/168, 604/174, 604/177
• US Class Current: 604/165.04
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters

Abstract

An intravenous catheter placement device is provided which includes a catheter having a hub and a cannula. A winged stabilizing member is slideable onto the catheter hub. The catheter hub and stabilizer have cooperating keys and keyways to provide predetermined positioning of the stabilizer on the catheter. A needle introducer having a hub and a needle is provided with a cantilever in fixed relation with the needle bevel. The cantilever is located between the luer lock ears on the catheter hub when the introducer is inserted into the catheter to provide a predetermined orientation between the needle bevel and the wings of the stabilizer.

Claims

1. An intravenous catheter placement device comprising a catheter including a catheter hub having a relatively rigid proximal connector end portion for connecting the hub in fluid connection with another device, and a flexible cannula extending distally from the distal end of said catheter hub, said catheter hub having a frusto-conical portion intermediate the distal and proximal ends thereof and having an annular recess in the outer wall of said frusto-conical portion said recess having a distal wall and a proximal wall, said recess having first guide means thereon, and a catheter securing member of relatively resilient material having a hub portion and a pair of opposed wings integral with said hub portion, said securing member hub portion having having distal and proximal ends said securing member hub portion having an inner frusto-conical wall extending circumferentially continuously and having second guide means on the inner wall thereof complementary to said first guide means, said securing member being movable axially over said frusto-conical portion of said catheter hub and into said recess with said first and second guide means cooperating to orientate said wings in predetermined circumferential relation with said hub, the distal end of said securing member abutting the distal wall of the recess when the securing member is disposed in said recess to hold said securing member therein.

2. The device of claim 1 further including a catheter introducer comprising a needle hub, a needle having a beveled distal end connected to said needle hub with a predetermined orientation with respect to the needle hub, said needle being receivable in said cannula with said beveled distal end extending distally from the distal end of said cannula, said needle hub and said catheter hub having complementary orientation means cooperable to prevent relative rotation between said catheter and said introducer and predeterminately locate said bevel relative to said wings, said catheter hub orientation means including a pair of spaced, opposed luer lock ears predeminately located on said catheter hub adjacent the proximal end thereof, and said needle hub orientation means including cantilever means on said needle hub extending distally between said ears when said needle is received in said cannula to thereby predeterminately position said needle bevel with respect to said wings.

3. The device of claim 1 or 2 wherein said first guide means includes generally axially extending integral key means extending through said annular recess in the catheter hub, and said second guide means includes axially extending keyway means for receiving said key means during movement of said securing means into said recess.

4. The device of claim 1 wherein said securing member is of a relatively elastic plastic material and the inner diameter of the distal end of said hub portion of said securing means is less than the outer diameter of said catheter hub at the distal end of said recess to ensure against axial relative movement between said securing member and said catheter hub.

5. The device of claim 1 wherein said catheter hub includes slip resistant means in said recess adapted for grasping with fingers of the person using the device.