U.S. patent number 3,757,782 [Application Number 05/259,919] was granted by the patent office on 1973-09-11 for fluid pressurizable swab applicator for medicament, antiseptic or the like.
This patent grant is currently assigned to Vivian C. Aiken. Invention is credited to Winthrop J. Aiken.
United States Patent |
3,757,782 |
Aiken |
September 11, 1973 |
FLUID PRESSURIZABLE SWAB APPLICATOR FOR MEDICAMENT, ANTISEPTIC OR
THE LIKE
Abstract
A swab-type applicator for a treatment liquid, such as a
medicament or antiseptic solution, includes an elongated tubular
member of relatively small diameter fabricated of a transversely
flexible, preferably transparent, synthetic plastic material
chemically inert to the solution, as encapsulated in said member.
The latter is provided at both ends with a rupturable sealing
element in the form of a thin closure disc or membrane; this
confines within the applicator tube a charge of the liquid
treatment medium or solution until manual squeezing pressure on the
tube between the temporarily sealed ends causes the medium to
rupture one or both of the sealing elements. The tube ends are
completely embedded axially in cotton or equivalent applicator
swabs which are saturated upon rupture of the tube end seals. Two
versions of the device are disclosed, in one of which the
rupturable seal elements alone confine the charge of solution in a
full tube bore length between its ends, and in another of which a
small separating and sealing plug is permanently seated within the
wall of the tube at its mid-point. This permits a selective
squeezing and end-rupturing compression of the tube at sub-lengths
at either side of said separator element, temporarily leaving
intact the rupturable sealing element for the opposite tube
sub-length.
Inventors: |
Aiken; Winthrop J. (St.
Petersburg, FL) |
Assignee: |
Aiken; Vivian C. (St.
Petersburg, FL)
|
Family
ID: |
22986985 |
Appl.
No.: |
05/259,919 |
Filed: |
June 5, 1972 |
Current U.S.
Class: |
604/3; 401/34;
401/196; 222/541.3; 222/107; 401/132 |
Current CPC
Class: |
A61M
35/006 (20130101); A61F 13/38 (20130101) |
Current International
Class: |
A61F
13/40 (20060101); A61F 13/38 (20060101); A61m
035/00 () |
Field of
Search: |
;128/269 ;222/92,107
;401/132,42,177 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Medbery; Aldrich F.
Claims
What is claimed is:
1. An applicator comprising a length of tubular material of
relatively small diameter which is readily compressible by
squeezing transversely in a diametral plane, said length containing
a charge of treating liquid and having rupturable elements at
opposite ends thereof displaced by an internal pressure in said
tubular material and confining and temporarily sealing said charge
within said length, and a pair of absorbent swab members in each of
which one end of said length and the sealing element of that end
are wholly embedded, constituting a dispensing means when a rupture
of an end element under pressure on the liquid charge, as attending
a transverse compression of said length between said ends, results
in a saturating discharge of said treating liquid to and within the
swab member encasing the ruptured element.
2. The applicator of claim 1, in which said rupturable elements
alone confine between them said treating liquid until rupture of
one thereof.
3. The applicator of claim 1, in which said rupturable elements
alone confine between them said treating liquid until rupture of
both thereof.
4. The applicator of claim 1, and further comprising a sealing
member fixed within said tubular length between said rupturable
elements, said member subdividing the length into portions
containing relatively small liquid charges end-confined
respectively by said rupturable elements.
5. The applicator of claim 4, in which said charges contained in
the respective portions of the length are of the same treating
liquid.
6. The applicator of claim 4, in which said charges contained in
the respective portions of the length are of different treating
liquids.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The double ended swab applicator is intended for large scale sale
to and use in hospitals, clinics, physician and surgeon offices and
the home, through sales and distribution arrangements of the sort
presently supplying such users, i.e., manufacturers and/or outlets
for related medical items and supplies, and the like.
2. Description of the Prior Art
A search reveals the following patents:
Schulz 1,221,227 Apr. 3, 1917 Cochran 2,401,617 June 4, 1946 Smith
2,682,974 July 6, 1954 Heimlich 3,324,855 June 13, 1967 Ronco
3,369,543 Feb. 20, 1968
Of these, the Heimlich patent is most pertinent in its disclosure
of several versions of a surgical sponge stick, in all of which an
applicator pad of gauze or other material surrounds an open end of
a compressible handle, the opposite end of the latter being closed.
According to one embodiment, the gauze-encased handle end is
perforated (i.e., unsealed) for a direct discharge of liquid to
saturate the gauze; and in two other versions the liquid is
contained in a separate compartment, frangible or otherwise,
located in its entirety in the tubular handle well inwardly of the
gauze-equipped end.
Schulz also discloses an applicator including a frangible or
friable glass liquid container encased in its entirety within a
wrapper which at one end affords an applicator brush. The three
other citations are even less pertinent.
SUMMARY OF THE INVENTION
The invention affords a double swab-ended applicator for
medicament, antiseptic or like solutions enabling the latter, in
saturating one or both of the swab ends, to be applied directly to
a desired spot or area of a patient, without the necessity of
dipping the swab into a vial or bottle of the solution. There is,
accordingly, no possibility of contaminating a bottled solution by
repeated dippings of a swab therein.
The encapsulated charge of solution is wholly confined and
temporarily sealed between the extreme ends of a flexible plastic
tubular applicator rod, which ends are embedded and wholly encased
within the applicator material, the material being preferably a
quantity of cotton wound on the tube end in the manner of a type of
wooden or dense fiber applicator stick familiar to the market. In
other respects the improved applicator presents all of the
advantages of convenience in use, low cost, etc., of the last-named
conventional double-ended swab item.
The present applicator is, of course, intended for one-time
disposable use; and in one version or form herein illustrated and
described, the tube construction is such that a single manual
pinching compression of the tube medially of its length will
rupture temporary seal elements at both of the tube ends, thereby
affording a doubled availability of the saturating solution for any
given use. Another adaptation according to the invention features
an internal sealing plug permanently mounted between the applicator
tube ends, thus subdividing the tube interior into two equal
chambers containing sub-charges of treatment solution. A squeeze of
either chamber ruptures the membrane or disc for that compartment
enabling the treatment liquid therein to be discharged to saturate
the end swab, without in any way affecting the other sub-chamber,
and leaving the charge of the latter for future dispensation.
The embodiment just referred to presents the possibility of
charging different types of treating fluid in the applicator tube,
for example, alcohol or other antiseptic or disinfectant in one
chamber and a curative or alleviative solution in the opposite, for
successive use in a desired order. In either instance mentioned
above, the applicator is characterized by great simplicity in
construction, hence low production cost and maximum compactness in
form.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a somewhat enlarged scale view of one adaptation of the
fluid pressurizable swab applicator prior to use of the latter,
being in longitudinal section in a plane including the axis of the
tubular handle member;
FIG. 2 is a similar view illustrating the action upon a
finger-squeezing of the tube member;
FIG. 3 is another view in similar longitudinal section of an
alternative form of applicator, in which the tube is internally
subdivided at its center by a permanently applied sealing plug;
and
FIG. 4 is a view in transverse section in a plane diametral of the
tube component of either FIG. 1 or FIG. 4.
DESCRIPTION OF PREFERRED EMBODIMENTS
A first version of the applicator, generally designated by the
reference numeral 10, is shown in FIGS. 1 and 2 and comprising an
axially elongated tubular applicator handle rod 12 of relatively
small diameter, for example, three-sixteenths inch to one-fourth
inch o.d., which is an extrusion of an appropriate, flexibly
compressible plastic material. Of course, as is the case with
synthetics now plentifully available, the material must be
chemically inert to the treatment liquid, represented by a charge
14 of antiseptic or medicament contained in tube member 12. The
charge substantially fills the interior of said member between
extreme opposite ends spaced a distance of, say, three or four
inches from one another. However, in this respect both the axial
and the diametral dimensions of the device 10 are subject to
variation.
Tube member 12 is temporarily sealed at each of its said opposite
axial ends by a rupturable element 16, which is in the form of a
small and thin circular membrane or disc. Element 16 preferably has
an integral, adhesive or fused connection to the tube end, or may
be otherwise temporarily sealed across the latter in one way or
another. It is essential that disc or membrane 16 be readily
rupturable under internal liquid pressure set up in the solution
charge 14.
It is also of much significance, pursuant to the invention, that
the elements 16 be entirely encased well within the interior of
cotton or equivalent swab members 18 which are wound or
appropriately secured to the tube ends; this permits a copious and
substantially uniform saturation of such swab components, simply
and solely as the result of a manual pinching compression of the
tubular handle member 12 centrally of the tube ends.
Such result is depicted in FIG. 2, in which both sealing discs or
membranes 16 are shown as ruptured by the increased hydraulic force
on the charge 14 treatment solution being forceably ejected
diffusively well into the interior of both swabs 18 to saturate the
latter, as appears at 14' in FIG. 2. These are then successively
employed as needed in the application of the saturant to the
patient, insuring that a copious amount of the latter is at hand
for the purpose, after which application the device is discarded.
No manipulation of fracturing an ampule-like part, or specific
removal of another type of sealing element is entailed.
In the embodiment of the invention, generally designated 20, which
is shown in FIG. 3, the construction is essentially the same, so
that corresponding reference numerals are employed to designate
corresponding parts and further description in detail is dispensed
with.
FIG. 3 presents a refinement in which the tubular handle member 12
has its interior centrally subdivided in the axial sense by an
internal sealing plug 22 which is permanently fused or otherwise
set in place. Similar sub-chambers or compartments 24 thus defined
on opposite axial sides of plug 22 are filled with sub-charges of
treatment liquid, and these are successively discharged as desired
or required upon manual squeezing of the adjacent surrounding tube
wall to one or the other side of plug 22 rupturing the
corresponding temporary sealing membrane or disc 16. Thus, the
device 20 is one which may be twice used at considerably varying
time intervals, or in quick succession, depending upon need.
Moreover, while the sub-compartments 24 may be charged with the
same treatment liquid, such as alcohol, another antiseptic liquid,
or a curative or alleviative solution, the possibility is also
afforded that said compartments 24 may be charged with different
liquids, such as an antiseptic in one and a medicament in the
other.
* * * * *