Urine bag abstract
A self-standing urine collection bag that includes a bag of flexible
material having an air and liquid-tight closure; a pair of opposing
substantially flat, flexible side panels that are bonded to one-another
and that expand when the bag is filled; an inwardly-recessed, gusseted
bottom panel that is folded when the bag is empty, and unfolded
when the bag is full; wherein the bottom panel provides support
for the side panels so that, when filled with urine, the bag is
self-supporting and can maintain a stable vertical standing position
when resting on a substantially horizontal surface. A self standing
urine bag system that maintains the bag's volumetric reading precision
by using a reusable, rigid frame to deploy fully the flexible, disposable
bag.
Urine bag claims
1. A self-standing urine collection bag, comprising: a pair of
opposing, substantially flat, flexible side panels that are bonded
to one-another to form an enclosed body, and that move apart when
the urine bag is filled with gas or urine; and an inwardly-recessed,
gusseted bottom panel that is folded when the urine bag is empty,
and unfolded when the urine bag is full; wherein the bottom panel
is bonded within the body to form an air and liquid-tight closure;
and wherein the bottom panel provides support for the side panels
so that, when filled with urine, the urine bag is self-supporting
and can maintain a stable vertical standing position when resting
on a substantially horizontal surface.
2. The urine collection bag of claim 1 wherein the bottom panel
is fully deployed by a force internal to the bag, which provides
accurate and precise volumetric readings of urine while urine is
in the bag.
3. The urine collection bag of claim 2 wherein the bag has volumetric
measuring indicia on at least one of the side panels.
4. The urine collection bag of claim 2 wherein the body is a uniform
structure which includes an integrated pour handle and integrated
hanging loop.
5. The urine collection bag of claim 2 wherein the deployment is
maintained by a rigid external insert that operably fits into a
recess in the bag.
6. The urine collection bag of claim 5 wherein the insert is a
side panel separator that comprises hard foam, a rigid frame, or
plastic.
7. The urine collection bag of claim 2 wherein the bag has an elastically
expanding, collapsible insert that separates the side panels and
deploys the gusseted bottom when the bag is empty of liquid.
8. The urine collection bag of claim 7 wherein the insert collapses
during vacuum packaging of the bag so that the bag flattens, and
expands when the bag is unpacked or opened for use.
9. The urine collection bag of claim 8 wherein the insert is made
from reticulated foam or a rigid plastic frame.
10. The urine collection bag of claim 2 wherein the bottom panel
is fully and operatively deployed by positive gas pressure internal
to the bag that is greater than an ambient pressure exerted on the
outside of the bag.
11. The urine collection bag of claim 10 wherein the bag is deployed
by manual inflation through a blow tube inlet, or by a release of
gas from a separate, compressed gas chamber.
12. The urine bag of claim 2 wherein the bag has dual-purpose,
liquid inlet and outlet fittings that allow air to escape when urine
enters the bag, and allow air to enter when urine exits the bag.
13. The urine bag of claim 12 wherein at least one of the fittings
includes activated carbon to adsorb odors from air vented out of
the bag during its filling with urine.
14. The urine bag of claim 12 wherein the bag has a handle that
is made from at least one of the side panels.
15. A self-standing urine collection bag, comprising: a bag of
flexible material having a top and a bottom portion, the outer surfaces
of which are operatively and releasably coupled to respective upper
and lower ends of a rigid external frame; wherein the rigid frame
provides support for the bag so that, when filled with urine, the
bag can maintain a stable vertical standing position when resting
on a substantially horizontal surface.
16. The urine collection bag of claim 14 wherein the frame operably
places the bag in tension across multiple internal distances so
that a measurement of volume of urine in the bag, using measuring
indicia on the bag or frame, substantially and reproducibly conforms
to an accurate volume of urine.
17. The urine bag of claim 15 wherein the tension placed upon the
bag is three-1 dimensional.
18. The urine bag of claim 16 wherein the frame has a telescoping
arm, the adjustable movement of which imparts the tension.
19. The urine collection bag of claim 17 wherein the bag has volumetric
measuring indicia printed or embossed on one of the side panels.
20. The urine collection bag of claim 16 wherein the bag operatively
has a handle that is made from the rigid frame.
21. A self-standing urine collection bag system, comprising: a
flexible, side portion that is formed of one or more plastic sheet
panels bonded to one another along their sides and tops to form
a body that expands when the urine collection bag is filled; an
inwardly-recessed, bottom panel or plug that is bonded to an internal
wall of the side portion to form a supportive interface; wherein
the supportive interface provides support for the side portion so
that, when filled with urine, the urine collection bag is self-supporting
and can maintain a stable vertical standing position when resting
on a substantially horizontal surface; wherein the supportive interface
provides regular and full deployment of the bag for accurate measurement
of urine while urine is in the bag, by measuring indicia on the
bag.
22. The urine collection bag system of claim 21 wherein the bag
has dual purpose liquid inlet and outlet fittings that allow air
to escape when urine enters the bag, and allow air to enter when
urine exits the bag.
23. The urine bag system of claim 22 further comprising a frame
that operably places the bag in tension across multiple internal
distances so that a measurement of volume of urine in the bag, using
measuring indicia on the bag, substantially and reproducibly conforms
to an accurate volume of urine.
24. The bag system of claim 22 wherein at least one of the fittings
includes activated carbon to adsorb odors from air vented out of
the bag during filling with urine.
25. The urine collection bag system of claim 21 wherein the bag
has a handle that is made from a cylindrical side portion.
26. The urine collection bag system of claim 24 wherein the bag
is made from a cylindrical body, and at least one embossing structure
on the side portion provides vertical support for the bag.
27. The urine collection bag system of claim 24 wherein a rod runs
from the top of the cylindrical portion to the bottom panel or plug
to provide additional vertical support, and stability while emptying
the bag.
28. The urine bag system of claim 22 wherein the inlet and outlet
fittings are sealed between the two sheet panels.
Urine bag description
FIELD OF THE INVENTION
[0001] The present invention relates to a free-standing urine collection
bag, and more particularly, to a free-standing disposable urine
collection bag that allows easy measurement of urine, convenient
handling and disposal of urine, and has a low cost of manufacturing.
BACKGROUND OF THE INVENTION
[0002] Conventional hospital urine collection bags, which typically
hang at the foot of a patient's bed, present a number of drawbacks
related to the measurement, handling and disposal of urine. These
bags do not provide an accurate measure of urine volume contained
within them and must be emptied into a separate graduated cylinder
for purposes of measurement. They also have little structural rigidity,
which makes them hard to handle. These bags also frequently empty
from their bottoms, and they often cause urine to be released under
pressure. This can lead to urine splashing healthcare workers while
emptying urine into measuring cups. In addition, the outlet tubes
and clamps used to keep urine within such bags can easily fail resulting
in urine being released onto the floor of the hospital room.
[0003] U.S. Pat. No. 6345911 discloses a lock top canister bag
and method of manufacture, which includes an inwardly folded gusset
at its lower end which can be flattened to expand and flatten the
lower end of the bag so that it can stand in an open condition.
However, this bag does not provide the high degree of support or
stability required to self-maintain a vertical standing position
when filled with human urine, nor does it provide a single vessel
for collection, storage, accurate measurement, and disposal of urine.
[0004] Hence, the prior art fails to provide a urine collection
bag that provides adequate support or stability for self-maintenance
of a vertical standing position when filled with human urine, nor
does it provide a single vessel for collection, storage, accurate
measurement, and disposal of urine.
SUMMARY OF THE INVENTION
[0005] Thus, the present invention is directed to a urine collection
bag or urine collection bag system that provides adequate support
and stability for self-maintenance of a vertical standing position
before, during, and after filling with human urine.
[0006] The present invention is also directed to a urine collection
bag or urine collection bag system that provides a single vessel
for collection, storage, accurate measurement, and disposal of urine.
[0007] One aspect of the present invention is directed to a pair
of opposing, substantially flat, flexible side panels that are bonded
to one-another to form an enclosed body, and that move apart when
the urine bag is filled with gas or urine. The bag also has an inwardly-recessed,
gusseted bottom panel that is folded when the urine bag is empty,
and unfolded when the urine bag is full. The bottom panel is bonded
within the body to form an air and liquid-tight closure, and the
bottom panel provides support for the side panels so that, when
filled with urine, the urine bag is self-supporting and can maintain
a stable vertical standing position when resting on a substantially
horizontal surface.
[0008] In another aspect, the bottom panel is fully deployed by
a force internal to the bag, which provides accurate and precise
volumetric readings of urine while urine is in the bag.
[0009] In still another aspect, the bag has volumetric measuring
indicia on at least one of the side panels.
[0010] In yet another aspect, the body is a uniform structure which
includes an integrated pour handle and integrated hanging loop.
[0011] In still another aspect, the deployment is maintained by
a rigid external insert that operably fits into a recess in the
bag.
[0012] In yet another aspect, the insert is a side panel separator
that comprises hard foam, a rigid frame, or plastic.
[0013] In still another aspect, the bag has an elastically expanding,
collapsible insert that separates the side panels and deploys the
gusseted bottom when the bag is empty of liquid.
[0014] In yet another aspect, the insert collapses during vacuum
packaging of the bag so that the bag flattens, and expands when
the bag is unpacked or opened for use.
[0015] In still another aspect, the insert is made from reticulated
foam or a rigid plastic frame.
[0016] In yet another aspect, the bottom panel is fully and operatively
deployed by positive gas pressure internal to the bag that is greater
than an ambient pressure exerted on the outside of the bag.
[0017] In still another aspect, the bag is deployed by manual inflation
through a blow tube inlet, or by a release of gas from a separate,
compressed gas chamber.
[0018] In yet another aspect, the bag has dual purpose liquid inlet
and outlet fittings that allow air to escape when urine enters the
bag, and allow air to enter when urine exits the bag.
[0019] In still another aspect, at least one of the fittings includes
activated carbon to adsorb odors from air vented out of the bag
during its filling with urine.
[0020] In yet another aspect, the bag has a handle that is made
from at least one of the side panels.
[0021] Another aspect of the invention is directed to a self-standing
urine collection bag, comprising a bag of flexible material having
a top and a bottom portion, the outer surfaces of which are operatively
and releasably coupled to respective upper and lower ends of a rigid
external frame. The rigid frame provides support for the bag so
that, when filled with urine, the bag can maintain a stable vertical
standing position when resting on a substantially horizontal surface.
[0022] In another aspect the frame operably places the bag in tension
across multiple internal distances so that a measurement of volume
of urine in the bag, using measuring indicia on the bag or frame,
substantially and reproducibly conforms to an accurate volume of
urine.
[0023] In still another aspect, the tension placed upon the bag
is three-dimensional.
[0024] In yet another aspect, the frame has a telescoping arm,
the adjustable movement of which imparts the tension.
[0025] In still another aspect, the bag has volumetric measuring
indicia printed or embossed on one of the side panels.
[0026] In yet another aspect, the bag operatively has a handle
that is made from the rigid frame.
[0027] Another aspect of the invention is directed to a self-standing
urine collection bag system, comprising a flexible, side portion
that is formed of one or more plastic sheet panels bonded to one
another along their sides and tops to form a body, and that expands
as the urine collection bag is filled. The bag system also includes
an inwardly-recessed, bottom panel or plug that is bonded to an
internal wall of the side portion to form a supportive interface.
The supportive interface provides support for the side portion so
that, when filled with urine, the urine collection bag is self-supporting
and can maintain a stable vertical standing position when resting
on a substantially horizontal surface. The supportive interface
provides regular and full deployment of the bag for accurate measurement
of urine while urine is in the bag, by measuring indicia on the
bag.
[0028] In another aspect the bag has dual purpose liquid inlet
and outlet fittings that allow air to escape when urine enters the
bag, and allow air to enter when urine exits the bag.
[0029] In still another aspect, the urine bag system further comprises
a frame that operably places the bag in tension across multiple
internal distances so that a measurement of volume of urine in the
bag, using measuring indicia on the bag, substantially and reproducibly
conforms to an accurate volume of urine.
[0030] In yet another aspect, at least one of the fittings includes
activated carbon to adsorb odors from air vented out of the bag
during filling with urine.
[0031] In still another aspect, the bag has a handle that is made
from a cylindrical side portion.
[0032] In yet another aspect, the bag is made from a cylindrical
body, and at least one embossing structure on the side portion provides
vertical support for the bag.
[0033] In still another aspect, a rod runs from the top of the
cylindrical portion to the bottom panel or plug to provide additional
vertical support, and stability while emptying the bag.
[0034] In yet another aspect, the inlet and outlet fittings are
sealed between the two sheet panels.
BRIEF DESCRIPTION OF THE DRAWINGS
[0035] In the accompanying drawings, which form a part of the specification
and are to be read in conjunction therewith, and in which like reference
numerals are used to indicate like parts in the various views:
[0036] FIG. 1 is a front perspective view of a urine collection
bag according to the present invention;
[0037] FIG. 1a is a cutaway front perspective view of another embodiment
of the bag of FIG. 1;
[0038] FIG. 2 is a side view of the bag of FIG. 1;
[0039] FIG. 3 is a bottom perspective view of the bag of FIG. 1;
[0040] FIG. 3a is a bottom perspective, assembly view of the bag
in FIG. 1 and a form-fitting, deployed-gusset, bottom insert according
to the present invention;
[0041] FIG. 3b is a bottom perspective, assembly view of the bag
in FIG. 1 and another embodiment of a form-fitting, deployed-gusset,
bottom insert according to the present invention;
[0042] FIG. 3c is a bottom perspective, assembly view of the bag
in FIG. 1 and another embodiment of a form-fitting, deployed-gusset,
bottom insert according to the present invention;
[0043] FIG. 4 is a bottom perspective, assembly view of the bag
of FIG. 1 that includes a collapsing and elastically expanding insert
according to the present invention;
[0044] FIG. 5 is a side cross-sectional view of the bag and insert
of FIG. 4 before vacuum sealing, along line B-B;
[0045] FIG. 6 is a side cross-sectional view of the bag and insert
of FIG. 4 after vacuum sealing, along line B-B;
[0046] FIG. 7 is a side cross-sectional view of the bag and insert
of FIG. 4 after self-inflation, along line B-B;
[0047] FIG. 8 is another embodiment of a collapsing and expanding
insert according to the present invention;
[0048] FIG. 9 is a front perspective, assembly view of another
embodiment of a urine collection bag according to the present invention;
[0049] FIG. 10 is a front perspective view of the bag of FIG. 9
when being used to receive urine;
[0050] FIG. 11 is an assembly perspective view of a urine bag,
as seen from beneath the bag, and a frame, as seen from above the
frame, according to the present invention;
[0051] FIG. 12 is a front perspective view of the bag and frame
of FIG. 11 when being used to receive urine;
[0052] FIG. 13 is a front perspective, assembly view of another
embodiment of a urine bag according to the present invention, which
has a hang tab fitting, a connector fitting, and a split cap;
[0053] FIG. 14 is a top plan view of the split cap of FIG. 13;
[0054] FIG. 15 is a top plan view of the connector fitting of FIG.
13;
[0055] FIG. 16 is a top assembly view of the bag of FIG. 13 and
a frame according to the present invention;
[0056] FIG. 17 is a front plan view of the bag and frame of FIG.
16;
[0057] FIG. 18 is a side plan view of the bag and frame of FIG.
16;
[0058] FIG. 19 is a front assembly view of another embodiment of
a urine bag and frame according to the present invention, wherein
the frame has a telescoping L-shaped arm and base;
[0059] FIG. 20 is a side plan view of the adjustable frame of FIG.
19;
[0060] FIG. 21 is a top plan view of the L-shaped arm of FIG. 19;
and
[0061] FIG. 22 is a top plan view of the base of FIG. 19.
DETAILED DESCRIPTION OF THE INVENTION
[0062] As illustrated in the accompanying drawings and discussed
in detail below, one aspect of the present invention is directed
to a free-standing disposable urine collection bag that allows easy
measurement of urine, convenient handling and disposal of urine,
and has a low cost of manufacturing. In particular, this aspect
provides full, reproducible, and continuous deployment of the internal
area of the bag, which allows accurate and precise volumetric readings
of urine while the urine is still in the bag. This aspect then allows
quick, safe and easy storage and disposal of urine, directly from
the bag.
[0063] In one embodiment, bag deployment occurs as a result of
forces exerted from inside the bag. Referring to FIGS. 1 2 and
3 disposable urine bag 1 includes front 3 and back 5 flexible plastic
side panels, and inwardly-recessed, gusseted, bottom panel 7 which
are attached to one another according to one of a variety of methods.
Several such methods, all of which shall be deemed as applicable
for use to attach various panels and fittings one to another in
each of the embodiments described below, include, but are not limited
to, heat welding, heat sealing, heat bonding, and other suitable
permanent attachment methods. Several such methods for processes
used to make bags suitable for this aspect of the invention are
described in U.S. Pat. No. 5971613 which is hereby incorporated
by reference in its entirety.
[0064] Panels 3 and 5 are mirror images of each other, and they
come together to form the uniform body structure of bag 1 which
includes integrated pour handle 13 and integrated hanging loop 23.
Panel 7 is a single elongated panel that is inwardly-recessed into
the body of bag 1. In one embodiment, bottom panel 7 has either
rounded (not shown) or pointed ends 17 although other shapes are
suitable for use with this aspect of the invention. When bag 1 is
empty, middle portion 6 is the same, or nearly the same, distance
from bottom edges 20 as ends 17. When bag 1 is full, however, ends
17 are inwardly-recessed within bag 1 i.e., away from bottom edges
20 to a greater extent than middle portion 6 which bulges out
towards edges 20.
[0065] This bulging and flattening of middle portion 6 occurs in
response to the filling and emptying of bag 1. In particular, bottom
panel 17 responds to the emptying and filling of bag 1 by folding
and unfolding. When bag 1 is empty and flat, panel 7 is folded onto
itself along lengthwise crease 19 so that bottom surfaces 2 and
4 meet each other. As the volume of liquid or gas that bag 1 holds
decreases, side panels 3 and 5 come together. Panels 3 and 5 thereby
force panel 7 to fold onto itself along crease 19. As a result,
crease 19 is pushed further into bag 1 i.e., away from bottom edges
20 of bag 1. When bag 1 is filled with liquid or gas, side panels
3 and 5 are forced apart, which deploys bottom panel 7. Panel 7
deploys by unfolding along crease 19 which moves outwardly, i.e.,
toward bottom edges 20 of bag 1.
[0066] Thus, under the pressure or weight of incoming or expanding
gas or liquid, inwardly-recessed, gusseted bottom panel 7 unfolds
at bag 1's lower end to lend stability to bag 1. The force of gas
or liquid against the interior surface of bottom panel 7 and the
inner surfaces of side panels 3 and 5 separates and provides support
for the bottom portions of sides 3 and 5.
[0067] Under the more particular weight of urine that collects
at the bottom of bag 1 panel 7 bulges downward and panels 3 and
5 separate, thereby providing stability for urine bag 1 to stand
upright on its own. Under a sufficient weight of urine the separation
of panels 3 and 5 which coincides with the deployment of panel
7 thereby allows bag 1 to stand by itself on a counter or other
substantially horizontal surface.
[0068] The deployment of bottom panel 7 thus provides immediate
and concurrent volumetric reading as bag 1 is filled with urine,
without the use of additional reading instruments. Volumetric measuring
indicia 21 are embossed or printed onto front panel 3 to allow for
accurate volumetric measuring of urine without having to empty bag
1 into a separate measuring device. Used in tandem with the self-supporting
feature of bag 1 an accurate measurement of bag 1's contents can
be determined simply by visual examination of bag 1 immediately
after, or concurrent with, its filling. This feature eliminates
the need to empty bag 1 into a graduated cylinder or other measuring
container.
[0069] Panels 3 5 and 7 are made from transparent or translucent
plastic, but they can be made of any lightweight flexible material
suitable for containing biological fluids. Lightweight plastic polyolefin
panels 3 5 and 7 are highly flexible, but can support a sizable
weight of urine, at least as great as a typical large adult human
bladder discharge. Sides 3 5 and 7 buckle as bag 1 is filled,
but uniformly thick bottom portions 15 provide stability to support
bag 1 when it is full.
[0070] Regarding the filling and emptying of bag 1 urine flows
into bag 1 through fitting 11 and air flows into fitting 11 when
bag 1 is emptied. Fitting 11 is a plastic valve, but it can be any
valve suitable for performing the above-described dual functionality.
Alternately, more than one fitting can be used to perform these
two functions.
[0071] Bag 1 also has dual-purpose, urine outlet and air-escape
valve fitting 9 through which (1) air or other gas exits bag 1
as urine fills bag 1 and (2) urine is poured out of bag 1 (to dispose
of urine when bag 1 is full). Fitting 9 is a plastic screw close
valve, but it can be any valve suitable for performing the above-described
dual functionality. Alternately, more than one fitting can be used
to perform these two functions.
[0072] In one embodiment, fitting 9 has a round opening, and an
eye-shaped base about which panels 3 and 5 are bonded, which provides
an air-tight and liquid-tight seal between bag 1 and fitting 9.
[0073] Fittings 9 and 11 are made of plastic, but they can be made
from any synthetic or natural lightweight airtight material suitable
for containing biological fluids. Fittings 9 and 11 are bonded between
sides 3 and 5 but can be attached in any manner suitable to provide
an airtight seal.
[0074] While collecting urine, bag 1 hangs on a bed frame, mobile
stand, or elsewhere by integrated hanging loop 23. Once bag 1 is
full, however, bag 1 is detached easily from its catheter tube,
which is connected to fitting 11 and taken down either before or
after its final volumetric urine measurement is recorded. During
such final volumetric measurement, bag 1 can easily and safely stand
on any flat surface until time permits for urine disposal out of
fitting 9 or disposal of bag 1 and its contents altogether.
[0075] Referring to FIG. 1a, in one embodiment tab handle 401 is
integrated into the body structure of bag 1 as part of, and along
the middle (or bottom) of, right side strip 8. This placement of
handle 401 nearer to the weight of urine-filled bag 1 provides
balance and stability while pouring urine out of bag 1.
[0076] Referring to FIG. 3a, in one embodiment, solid, non-compressible,
form-fitting, and reusable, Styrofoam.RTM. bottom insert 151 ensures
full, reproducible deployment of panel 7. Insert 151 is molded to
have the same dimensions as space S, which is defined by the inside
of bag 1's bottom portions 15 and panel 7 when panel 7 is fully
deployed. Thus, length L of insert 151 is the same as length M of
space S, and width N of insert 151 is the same as width O of space
S. Also, top face 158 form-fits and cradles the external, fully
deployed surface of panel 7.
[0077] Insertion of insert 151 into the bottom of bag 1 in accordance
with direction arrow 1 achieves and maintains full and reproducible
deployment of bottom panel 7 which provides accurate and precise
volumetric reading without the use of additional reading instruments.
To the extent that panel 7 is not fully deployed, such as where
an insufficient weight of urine fills bag 1 the volume measured
by indicia 21 may be inaccurate or imprecise. This inaccuracy or
imprecision is caused whenever panel 7 does not regularly and repeatedly
deploy to the same degree under the same volume of urine or other
liquid. Such variations in deployment are caused by many variables,
including for example, atmospheric pressure, temperature, liquid
density, filling flow rate and other variables. Insert 151 and
the other inserts described herein below, however, ensure full,
regular, reproducible, repeated, and continuous deployment of panel
7 by providing and maintaining the proper distances between the
respective lengths of panels 3 and 5.
[0078] Insert 151 is attached to bag 1 using an adhesive or other
suitable fastening or attachment device. Alternately, insert 151
is sized such that its dimensions makes it fit just tightly enough
within panel 7 and bottom portions 15 to be retained within space
S. In either case, insert 151 provides and maintains the proper
distances between the respective lengths of panels 3 and 5 to allow
accurate and precise volumetric urine measurement within bag 1.
[0079] Insert 151 also has flat bottom 152 which rests on the
surface on which bag 1 sits. Flat bottom 152 thereby adds to, and
maintains, the stability of bag 1.
[0080] Suitable materials for insert 151 include, but are not limited
to, any solid foam that can be adhesively, or otherwise, attached
or positioned between panels 3 and 5. These materials include, but
are not limited to, any rigid natural or synthetic material such
as wood, plastic, or foam. However, any sufficiently rigid material
that will provide and maintain separation of panels 3 and 5 is suitable
for insert 151.
[0081] Referring to FIG. 3b, in another embodiment, rigid and reusable
hard plastic frame insert 153 ensures full, reproducible deployment
of panel 7. When frame insert 153 is inserted into the bottom of
bag 1 in accordance with direction arrow 1 the resulting full and
reproducible deployment of bottom panel 7 provides accurate and
precise volumetric reading without the use of additional reading
instruments.
[0082] Frame insert 153 also has flat bottom 154 which rests on
the surface on which bag 1 sits. Flat bottom 154 thereby adds to,
and maintains, the stability of bag 1.
[0083] Suitable materials for frame insert 153 include any rigid
material that can be adhesively, or otherwise, attached or positioned
between panels 3 and 5. These materials include, but are not limited
to, any rigid natural or synthetic material such as wood, plastic,
or hard foam. However, any sufficiently rigid material that will
provide and maintain separation of panels 3 and 5 is suitable for
insert 153.
[0084] Referring to FIG. 3c, in another embodiment, rigid and reusable,
hard plastic spacer insert 155 ensures full, reproducible deployment
of panel 7. When insert 155 is inserted onto the bottom of bag 1
in accordance with direction arrow 1 insert 155 acts as a spacer
that keeps panels 3 and 5 specified distances apart, along the length
of bottom portion 15. Although insert 155 does not extend across
the length of panel 7 it adequately maintains panels 5 and 3 apart
from one another such that panel 7 is fully deployed. Insert 155
can alternately be shorter, or comprise a thin, rigid lattice. The
resulting full and reproducible deployment of bottom panel 7 provides
accurate and precise volumetric reading, without the use of additional
reading instruments.
[0085] Suitable materials for spacer insert 155 include any hard
plastic that can by adhesively, or otherwise, attached or positioned
between panels 3 and 5 include any rigid, natural or synthetic material
such as wood or plastic. However, any sufficiently rigid material
that will provide and maintain separation of panels 3 and 5 is suitable
for insert 155.
[0086] Referring to FIG. 4 in one embodiment collapsible and elastically
expandable, reticulated foam insert 300 is placed into bag 1 prior
to heat welding panel 7 to panels 3 and 5.
[0087] Referring to FIG. 5 when bag 1 is closed, foam insert 300
pushes panels 3 and 5 apart, and thereby fully and reproducibly
deploys panel 7.
[0088] Referring to FIG. 6 when bag 1 is vacuum packed inside
an outer sterile container (not shown), all of the air inside bag
1 is removed. As a result, foam insert collapses and panels 3 and
5 come together to form relatively flat bag 1. Bag 1 is stored and
transported flat, and remains flat until use.
[0089] Referring to FIG. 7 just before use, bag 1 is removed from
its sterile vacuum packing, at which point it self-inflates by the
elastic expansion of foam insert 300 which causes buckling of panels
3 5 and 7. Once inflated, bag 1 is ready for use and stable for
self-supported upright placement on any substantially horizontal,
flat surface.
[0090] In one embodiment, foam insert 300 is impregnated with an
antimicrobial agent such as silver-laden zeolite. This antibacterial
material discourages bacteria growth within bag 1 and accordingly
the chance of patient infection by urine-borne pathogens. Suitable
antimicrobial substances include, but are not limited to, cations,
anions, non-ionic agents, enzymes, and sugar alcohols. More specifically,
these agents include, but are not limited to, Cu.sup.2+, Zn.sup.2+,
Sn.sup.2+, alexidine, chlorhexidine, cetyl pyridinium chloride,
hexetidine, quaternary ammonium compounds, sanguinaria extracts,
florides, triclosan, Listerine.RTM., other phenolic compounds, sanitizers,
hospital disinfectants, general use disinfectants, and sterilizers.
[0091] Referring to FIG. 8 in one embodiment, collapsible and
elastically expanding rigid, plastic frame 310 is used in place
of foam insert 300. Frame 310 can be made from any relatively rigid,
synthetic or natural material that elastically returns itself to
shape, or is otherwise spring loaded.
[0092] In one embodiment, bag 1 self-inflates after manual depression
of a nitrogen or carbon-dioxide generator, such as is disclosed
in U.S. Pat. Nos. 4832968 and 5571548 which are hereby incorporated
by reference in their entireties. Other suitable internal, gas-generating
chambers could be used, as long as they heat-sealed within bag 1
between bag 1's panels 3 and 5. Alternately, any other non-metal
or metal, internal chamber, gas-generator is suitable for this aspect
of the invention as well, however.
[0093] Referring to FIG. 9 in an alternate embodiment, self-standing
urine collection bag 100 is composed primarily of cylindrical portion
103 and base portion 105. Cylindrical portion 103 is fabricated
from plastic or a coated paper product. Embossed structures 107
in the paper or plastic material strengthen the material and increase
its ability to make bag 100 self-supporting, particularly as bag
103 fills with urine. Suitable materials for cylindrical portion
103 and base portion 105 include polyolefin. However, any sealable
and sufficiently rigid material that provides self-standing construction
is suitable for this embodiment.
[0094] Base portion 105 is formed from a separate piece of material
in the form of an inverted pan, which acts as a plug. Thus, rectangular,
round, elliptical, or other shapes connected to and enclosed within
interior walls 111 of portion 103 are suitable for use as plugs
in this embodiment.
[0095] Interior side wall 111 of cylindrical portion 103 and exterior
side wall 109 of base portion 105 are in contact with, and attached
to, each other, with a suitable adhesive or other bonding method,
such as heat welding. Thus, the area of their attachment becomes
the primary support structure for bag 100. This embodiment thus
eliminates the need for a separate insert required for the base
of a standup pouch.
[0096] When stored empty, bag 100's base portion 105 folds substantially
flat onto flattened cylindrical portion 103. When ready for use,
bag 100 is unfolded such that the bottom of base 105 is set flat
on a horizontal surface.
[0097] Referring to FIG. 10 cutout portion 115 of bag 100 provides
hang tab 117 which allows a user to place bag 100 on a hook or
other raised arm. Alternately, hang tab 117 is formed by heat welding
diametrically opposed apertures 108 which when sealed together
are centrally positioned at the top of bag 100.
[0098] Inserted grasp rod 113 runs from base 105 to the top of
bag 100. Grasp rod 113 is heat welded between the sides of bag 100
and extends freely into bag 100. Grasp rod 113 can be held at any
point along its length. This feature gives bag 100 handling stability
while a user tilts it to empty it of urine.
[0099] Fittings 9 and 11 are heat welded into holes on wall 111
of cylinder 103 before (or after) walls 111 and 114 are attached
to one another.
[0100] In an alternate embodiment, fittings 9 and 11 are bonded
between walls 111 and 113 of cylinder 103 as these walls are heat
sealed, heat bonded, heat welded, or otherwise attached to one another.
[0101] Drip tube 120 provides a controlled passage for urine to
empty into bag 100 which thereby alleviates the dripping sound
commonly associated with drip chamber urine collection bags. One-way
flutter valve 123 at the end of tube 120 ensures that urine does
not flow back into tube 120 or out of bag 100. Any one-way valve
suitable for stopping backflow of urine may be used, however.
[0102] In one embodiment, the user blows air into one-way valve
12 to inflate bag 100 with air while momentarily closing escape
valve fitting 9 with his or her hand. This manual inflation by the
user converts bag 100 into a semi-rigid container, which helps ensure
that volumes measured according to indicia 21 accurately correspond
to the volume of liquid present in bag 100.
[0103] One additional, separate one-way inlet valve 12 is used
for manual inflation of bag 100 but not used for later urine in-flow,
so that bacteria from the inflating user's breath do not contaminate
urine inflow tube 120. Use of valve 12 to prevents bacterial growth
up tube 120 through fitting 11 and towards a patient's catheter,
which reduces the likelihood of infection due to bacterial migration
from whomever inflates bag 100 to the patient.
[0104] As seen, internally expanding, elastic solid structures
and devices that provide an increase in internal air pressure within
a urine bag, are included in, but do not limit, the types of devices
that can be used as part of this aspect of the invention.
[0105] Other embodiments that enhance full bag deployment, and
thus precise and accurate urine measurement, for example, work externally
upon an un-deployed bag, as is described immediately herein below.
Referring to FIG. 11 to the extent that urine bag 50 is not fully
deployed, such as where an insufficient weight of urine fills bag
50 the volume measured by indicia 57 may be inaccurate. To the
extent that bag 50 does not regularly and repeatedly deploy to the
same degree under the same volume or weight of urine or other liquid,
the volume measured by indicia 57 may be inaccurate or imprecise.
The use of tensioning frame 51 however, ensures full, regular,
reproducible, repeated, and continuous deployment of bag 50 by consistently
and reproducibly maximizing, without undue stress, the distances
between multiple opposing internal points within the flexible surface
of disposable urine bag 50. Frame 51 like other frames described
herein, also maintains these distances until accurate and precise
volumetric readings have been taken. Frame 51 moreover, can be
used repeatedly and hygienically, over-and-over-again, with numerous
disposable bags.
[0106] Thus, collapsible plastic bag 50 fits within external frame
51. When fit inside of frame 51 bag 50 is tensioned such that it
is vertically supported and allows accurate volumetric measurement
of urine with indicia 57. Loop material 60 which is adhesively
adhered to bottom 59 of bag 50 is releasably attached to hook material
62 on internal bottom 61 of frame 51 according to direction arrow
Z. In addition, height X of bag 50 is approximately the same, or
equal to, length Y on frame 51.
[0107] Plastic snap fitting 63 snaps into circular snap receiving
connection 65 on frame 51 according to direction arrow E. As such,
frame 51 slightly bends and contracts to receive fitting 63.
[0108] Frame 51 also facilitates emptying of bag 50 by providing
a more stable handle 53 than would otherwise be available using
collapsible bag 50 alone. Support bar 69 provides added support
to upper arch segments 71 and 73.
[0109] Referring to FIG. 12 once snapped into position, bag 50
experiences appropriate vertical tension from connection 65 and
radially-directed horizontal tension from bottom 61 to allow for
repeatable, accurate volumetric urine measuring according to printed
or embossed indicia 67. Bag 50 is hung from tab 24.
[0110] Frame 51 is made from rigid plastic, but it can be made
from any synthetic or natural rigid material suitable for receiving
and providing adequate vertical tension to bag 50.
[0111] Referring to FIG. 13 in another embodiment, plastic bag
assembly 238 comprises hang tab fitting 220; flexible, transparent,
non-self-supporting plastic bag 232; and split cap 210 each of
which attaches to hard plastic fitting 226. Hard plastic hang tab
fitting 220 fits circumferentially around bottom cylinder portion
222 of fitting 226. When bearing the weight of bag assembly 238
tab 220 abuts against collar ring 228. Bag 232 is heat welded onto,
and circumferentially around, bottom portion 222 of fitting 226.
Bag 232 directly receives urine from fitting 226 and directly expels
urine out of fitting 226. Split cap 210 is removably snapped closed
onto snap ring 227 of fitting 226.
[0112] Fitting 226 snaps into a tensioning frame, which is described
in greater detail below, at locking channel 229. Locking channel
229 is bounded below by wider, collar ring 228 and bounded above
by wider, chin ring 231. Once installed into a frame, fitting 226
forms a conduit for urine flow into and out of bag 232.
[0113] Urine flows into bag 232 through barb inlet fitting 212
which is heat sealed onto cap 210. Urine then flows through fill
tube 120 which is inserted through inlet hole 242. Tube 120 fills
bag 232 from the bottom of bag 232. Fill tube 120 has one-way flutter
valve 123 to prevent urine back flow to the patient.
[0114] Indicia 236 are used to volumetrically measure the urine
concurrent with, and after, the filling of bag 232.
[0115] Referring to FIG. 14 vent insert 218 which has hydrophilic
material impregnated with activated charcoal 221 keeps urine from
either wetting or impregnating vent 218. Air that is displaced by
urine as bag 232 fills with urine is therefore odorless.
[0116] Referring to FIG. 15 when bag 232 is full of urine, bag
232 is taken to an appropriate urine disposal area where lid 214
of cap 210 is opened by snapping it off of snap ring 227 and tilted
open about living hinge 219. Opposing lid 216 remains snapped onto
ring 227 and urine is poured out of bag 232 through pour spout
240.
[0117] Referring to FIG. 16 once bag assembly 238 is assembled,
it slides onto frame 250 according to direction arrow Q.
[0118] Referring to FIG. 17 bag 232 has additional loop of plastic
234 which has been heat sealed onto the bottom of bag 232. Loop
sleeve 234 slides horizontally taught onto base 254 of frame 250.
Locking channel 229 of fitting 226 then slides into place between
receiving arms 256 on vertical support member 252.
[0119] Referring to FIG. 18 rigid, vertical support member 252
thus keeps bag 232 precisely tensioned between base 254 and arms
256 so that flexible non-self-supporting bag 232 is fully deployed.
Once placed into this position, bag 232 experiences appropriate
vertical tension from arms 256 and horizontally-directed tension
from base 254 to allow for repeatable, accurate volumetric urine
measuring according to printed or embossed indicia 236. When tensioned
as such the resulting full and reproducible deployment of bag 232
provides accurate and precise volumetric reading without the use
of additional volumetric reading instruments.
[0120] Referring to FIG. 19 in one embodiment bag 260 fits within
tensioning frame 292. Bag 260 fits onto base 286 of frame 292 by
its integrated tabs 266 and 267 at respective spring loaded catches
279 and 278. At its top, bag 260 fits onto telescoping arm 284 of
frame 292 by its protruding bar 272 at arm 284's parallel hooks
274.
[0121] Before filling bag 260 tab 268 at the bottom of bag 260
is pulled through hole 290 so as to maximize the surface area of
the bottom of bag 260 that contacts the inside surface of cradle
282. This more fully deploys the rounded bottom of bag 260.
[0122] Bag 260 is made from front 262 and back 264 flexible, plastic
panels, which are heat welded together to form (1) top tab 270
through which bar 272 fits; (2) bottom tabs 266 and 267 which attach
to catches 279 and 278; and (3) pull tab 268 which is used to increase
bag-to-cradle surface contact area in order to more fully deploy
bag 260.
[0123] Referring to FIG. 20 once attached to frame 292 spring-loaded
release button 288 allows the user to telescopically raise and lower
arm 284 in accordance with direction arrow J, and thereby tension
bag 260.
[0124] Referring to FIG. 21 arm 284 has parallel receiving hooks
274 which extend on either side from fingers 293 and 295. Either
one or both of hooks 274 can be used, but their tandem use tends
to displace the tension along a wider, horizontal area of bag 260
than if exerted from a single raised tensioning point.
[0125] In another embodiment, a 4.times.4 6.times.6 or 9.times.9
array of raised tensioning points are used by employing various
means, including multiple hooks, loop sleeves, hook and loop fasteners,
or other raised, multiple point, attachment areas. Myriad devices
to effectively and easily deploy a light weight non-self-supporting,
disposable urine bag are within the scope of this embodiment.
[0126] Referring to FIG. 22 cradle 282 in base 286 receives the
full surface area of the bottom of bag 260. The telescopic extension
of arm 284 with respect to base 286 provides appropriate tension
to provide an accurate and precise volumetric measurement of urine
inside bag 260. Regularly-spaced notches along the vertical length
of arm 284 receive a spring loaded pin (not shown) that can reproducibly
be used with multiple bags.
[0127] In an alternate embodiment, where different bags 260 vary
from one to another or from multiple uses of a single bag 260 a
seamless continuum of tensioning adjustment length settings can
be made by the vertical adjustment of arm 284 with respect to base
286. In one such case, the tension exerted upon bag 260 is measured
by a spring loaded force-measurement scale in base 286 such that
the distance of telescopic tensioning is not kept constant in every
instance. Rather, merely the tension force exerted on bag 260 is
held constant. This way, variations such as bag material, bag stiffness,
and progressive stretching of bag 262 can be accounted for nevertheless
to provide accurate and reproducible volumetric measurements from
bag-to-bag, and between repeated uses of the same bag. Any suitable
technique based on applying the same tension force on bag 260 and
not the distance bag 260 is stretched, can be used, however.
[0128] In one embodiment, bag 262 is impregnated with magnetic
particles, or is otherwise magnetized, and frame 292 includes a
magnetic enclosure, which is quickly and easily shut around the
horizontal circumference of bag 262. The magnetic interaction between
the interior of the enclosure and the magnetized bag causes bag
262 to expand for accurate and precise volumetric measurement of
urine.
[0129] In one embodiment, bag 262 is electrostatically charged
and frame 292 is electrostatically coupled to bag 262 which causes
bag 262 to expand for accurate and precise volumetric measurement
of urine.
[0130] A second aspect of the present invention is directed to
a free-standing disposable urine collection bag system, which is
substantially described above.
[0131] While it is apparent that the illustrative embodiments of
the invention disclosed herein fulfill the objectives of the present
invention, it is appreciated that numerous modifications and other
embodiments may be devised by those skilled in the art. Additionally,
feature(s) and/or element(s) from any embodiment may be used singly
or in combination with other embodiment(s). Therefore, it will be
understood that the appended claims are intended to cover all such
modifications and embodiments that would come within the spirit
and scope of the present invention. |