Self-contained liquid swab applicator and method for its manufacture

• US 4,740,194 A
• Filed: 09/11/1986
• Issued: 04/26/1988
• Est. Priority Date: 09/11/1986
• Status: Expired due to Fees

• Current Assignee: Barabino William A, Traid Direct Incorporated
• Original Assignee: Traid Direct Incorporated
• Inventors: Dean, Raymond S., Barabino, William A.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/905,967
• Time in Patent Office: 593 Days
• Field of Search: 604/1, 604/2, 604/3, 604/306, 604/310, 604/244, 604/213, 604/214, 401/132, 401/136, 401/137, 401/138, 401/196
• US Class Current: 604/3
• CPC Class Codes: A61F 13/38 Swabs having a stick-type handle, e.g. cotton tips ear cleaners other than cotton tips A61F11/006; swabs containing a liquid, e.g. in a rupturable reservoir, A61M35/006

Abstract

A self-containing liquid swab applicator having a hollow tubing of a thin-walled plastic material for retaining therein a supply liquid and the material for being heat fusible, at least one end thereof being closed for securing retention of the supply liquid, one of the ends having an orifice adapted for exiting of the supply liquid, removable tab means secured upon the orifice for closure of the orifice until removed, and cotton form means permitting wicking and forming an environmental member about the orifice portion of the swab applicator for dispensing the supply liquid when the orifice is opened. The open end(s) may receive sequentially pulsing of alternate injections of supply liquid and air into one end of the tubing in measurable amounts and forming liquid lock portions and air lock portions along the tubing, and defining N segments of supply liquid spaced apart by air locks, and the segments may be cut apart at the air locks.

Claims

1. A self-contained liquid swab applicator comprising;

a length of hollow thin-walled tubing of resilient plastics material having two ends, a supply liquid disposed therein, the surface of said material exhibiting an enhanced degree of non-wettability relative the supply liquid,

means closing said tubing ends to secure retention of said supply liquid therebetween, said closing means adapted to remain intact upon squeezing of said tubing,

said tubing provided with an orifice extending through its periphery and spaced from one said end for outward flow of the supply liquid upon squeezing of said tubing,

removable tab means normally overlying said orifice,

means permitting wicking and defining a swab member mounted upon one said tubing end adjacent said orifice whereby,

removal of said tab means exposes said orifice and allows the supply liquid to issue through said orifice and migrate along the periphery of said tubing to the periphery of said swab member upon squeezing of said tubing, and upon relaxing the squeezing action, contaminated would fluid is prevented from being sucked into the tubing orifice.

2. The apparatus of claim 1 wherein the removable tab means is adhesively secured about a surface portion adjacent the orifice.

3. The apparatus of claim 1 wherein the removal tab means is frictionally secured about a surface portion adjacent the orifice, and upon its removal, provides for the outward flow of the supply liquid.

4. The apparatus of claim 1 wherein,

said hollow tubing includes a plurality of masses of said supply liquid, and each adjacent pair of said masses separated by a segment defining an air lock portion.

5. The apparatus of claim 4 wherein the liquid masses are comprised of diverse liquids.

6. The apparatus of claim 4 including, one said orifice disposed adjacent each said tubing end.

7. The apparatus of claim 1 wherein, said closing means comprises heat fused ends.

8. The apparatus of claim 1 wherein, said supply liquid as issued through said orifice is regulated by the squeezing of said tubing.

9. The apparatus of claim 1 wherein, both said tubing ends are provided with one said swab member.

10. The apparatus of claim 1 wherein, said swab member comprises an open cell foam material.