Stabilizing fitting for an intravenous catheter

• US 4,250,880 A
• Filed: 06/08/1979
• Issued: 02/17/1981
• Est. Priority Date: 06/08/1979
• Status: Expired due to Term

• Current Assignee: Whitman Medical Corp
• Original Assignee: Whitman Medical Corp
• Inventors: Gordon, Marvin
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US06/046,803
• Time in Patent Office: 620 Days
• Field of Search: 128/133, 128/214 R, 128/214.2, 128/214.4, 128/221, 128/215, 128/347-350, 128/DIG. 26
• US Class Current: 604/180
• CPC Class Codes: A61M 2025/024 having a clip or clamp system
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: Y10S 128/26 Cannula supporters

Abstract

A stabilizing fitting for securely holding an intravenous catheter to a patient'"'"'s skin at a venipuncture site comprises a laminar base member with an adhesive lower surface and a catheter hub retaining cradle on its upper surface. After insertion of the catheter into a vein and connection to an infusion tube, the catheter hub is pressed into the cradle which locates the hub laterally and longitudinally and the fitting is dabbed onto the patient'"'"'s skin. Stabilization is then achieved by affixing criss-cross adhesive tapes over the assembly.

Claims

1. A stabilizing fitting for securing an intravenous catheter to a patient'"'"'s skin comprising a laminar base member having a longitudinal axis, an upper surface and a lower surface, pressure-sensitive adhesive means on at least a part of said lower surface of said base member, a catheter hub-retaining cradle on said upper surface of said base member, said cradle having a forward end, a rearward end and resilient side walls substantially parallel to and symmetrically disposed on opposite sides of said longitudinal axis, said side walls being formed to receive and laterally locate a catheter hub pressed into said cradle, locating means associated with said cradle for maintaining said hub in position longitudinally of said axis with the catheter projecting substantially axially from said forward end of said cradle, a tab grip froming an extension of said base member rearwardly of said cradle, and means for reducing the bending resistance of the fitting along a bending axis substantially perpendicular to said longitudinal axis and located intermediate the forward and rearward ends of said cradle.

2. The fitting of claim 1 wherein said bending resistance reducing means comprises notch means formed in opposite side wall portions of said cradle.

3. The fitting of claim 1 wherein said cradle includes a trough-like portion rearwardly of said side walls and said bending resistance reducing means comprises notch means formed in opposed side wall portions of said trough-like portion.

4. The fitting of claim 3 wherein said trough-like portions includes a pair of laterally extending catheter hub-retaining ribs and said notch means is located between said ribs.

5. The fitting of claim 1 including a pair of release papers covering said pressure sensitive adhesive means, said release papers meeting on a line corresponding with said bending axis.

6. The fitting according to claim 1 wherein said tab grip is substantially co-planar with said base member and is free of said adhesive means.

7. The fitting according to claim 1 wherein said cradle includes a trough-like portion rearwardly of said side walls and said locating means includes laterally extending rib means in said trough-like portion for longitudinally locating a catheter of boss portion.

8. The fitting according to claim 7 wherein said trough-like portion includes a laterally extending rear wall having an opening for receiving and laterally locating an infusion fitting associated with a catheter hub.

9. The fitting according to claim 1 wherein said cradle includes a bottom and a top, and wherein said rearward end is defined by a rear support wall having a top edge which is recessed to a height above said bottom of said cradle to receive and support a hub of the catheter at a hub location such that the catheter hub is supported at a small angle relative to said upper surface of said laminar base member.

10. The fitting according to claim 9 wherein said locating means comprises a plurality of further support walls arranged parallel to said rear support wall, said further support walls being recessed to progressively higher levels above said bottom of said cradle with the forwardmost further support wall being recessed to the lowest such level.