Emesis bag
An emesis bag. A liquid-tight, tubular body portion defining a tubular axis and formed of one or more sheets of a plastic sheeting material is provided. The body portion has a first end through which the tubular axis passes, the first end defining a first opening into the body portion. The first end includes a “ziplock” seal for sealing the first opening, the ziplock seal having permanently joined ends that lie substantially along two opposed seams of the bag. The body portion has two sides extending between the two seams. The bag further includes at least two stay elements. One of the stay elements is disposed at the first end of the body portion on one of the sides and the other is disposed at the first end on the other of the sides. The stay elements extend on both sides of the tubular axis and terminate short of the seams. Each of the stay elements includes at least one metal strip.
The present invention relates to a disposable bag for the receipt and containment of bodily fluids, more particularly an emesis bag, for use in hospitals, home and travel.
BACKGROUNDEmesis bags are, essentially, flexible plastic bags that are provided with a rigid funnel at the opening of the bag. The flexibility of the bag allows it to be stored efficiently when empty, while the funnel, formed as a ring, maintains the mouth of the bag in an open configuration to facilitate vomiting into the bag.
The bag is sealed like a bread bag; it is twisted relative to the funnel to form a tightly twisted neck, and the neck is inserted into a notch in the funnel to tie the neck and maintain it in its twisted configuration. The bag is disposed of in this condition, with the contents sealed therein.
Another emesis bag is that manufactured by Bagco (www.bagco.com) marketed under the trademark ZIPPIT. This bag utilizes what is referred to herein as a “ziplock seal” for sealing the bag in a closed configuration, and provides cuffs for gripping the bag so that the bag remains open.
SUMMARYAn improved emesis bag is disclosed herein. In one embodiment, a liquid-tight, tubular body portion defining a tubular axis and formed of one or more sheets of a plastic sheeting material is provided. The body portion has a first end through which the tubular axis passes, the first end defining a first opening into the body portion. The first end includes a ziplock seal for sealing the first opening, the ziplock seal having permanently joined ends that lie substantially along two opposed seams of the bag. The body portion has two sides extending between the two seams. The bag further includes at least two stay elements. One of the stay elements is disposed at the first end of the body portion on one of the sides and the other is disposed at the first end on the other of the sides. The stay elements extend on both sides of the tubular axis and terminate short of the seams. Each of the stay elements includes at least one metal strip.
Preferably, at the first end of the body portion the two sides each include an overlapping cuff portion that creates, on each of the sides, a covered space. In this embodiment, the stay elements are preferably disposed within the covered spaces.
The emesis bag also has a second end opposite the first end. In one embodiment, the body portion is formed, at this second end, in a K-seal or modified K-seal configuration as described below, to facilitate maintaining the bag in a standing, up-right position, though this is not essential.
In another embodiment, the second end is utilized for draining the bag and includes a second opening, though this is also not essential. In this embodiment, preferably, the second opening is sealed along a weakened line. Preferably, to facilitate maintaining the second opening in an open configuration, the bag includes two additional stay elements, one of the additional stay elements being disposed at the second end on one of the sides of the body portion and the other being disposed at the second end on the other of the sides.
The present invention is described in the context of an emesis bag, in which it is ideally suited. However, it should be understood that the features provided may be used whenever it is desired to receive and securely store or dispose of bodily fluids or other hazardous or distasteful waste, which may be in liquid, semi-liquid, or even solid form.
For clarity and convenience, the same reference designators will be used to designate like parts in the different embodiments described herein.
The invention provides for two basic low-cost, disposable emesis bag forms that provide for maximum storage efficiency and ease of use, as well as an additional feature, i.e., a stay element for use with the different forms that further improves their functionality. The basic forms are described first.
Emesis bags according to the invention take the basic form of a standard ziplock freezer bag, with variations at the base or bottom of the bag. In a first variation described in connection with
Turning to the first variation,
The sheet is bisected by a line “A,” and has opposed edges 16 (16a, 16b) above the line A, and opposed edges 18 (18a, 18b) below the line A. The line A also demarcates two exterior sides of the bag 10 “S1a” and “S2a.” The sheet is folded along the line A so that points “B” (B1, B2) meet points “C” (C1, C2). The result is shown in a side view in
The sides 16 and 18 are joined (16a is joined to 18a, 16b is joined to 18b) such as by being welded, to form parallel seams 20 (20a, 20b) of the bag, of increased stiffness.
Once the sides are joined, the bag is essentially tubular, and defines a tubular or central axis “L” whether the bag is folded flat or not.
A bottom end 24 of the bag is preferably formed by the above operations into what is known in the art as a “K-seal.” The portion of the bag lying along the line A can be pulled down to some extent (though it is tied to the seams 20), and this allows the edges defined between the points B (B1-B2) to separate from the edges defined between the points C (B1-B2), defining a base that facilitates maintaining the bag 10, when it has contents therein and is placed on a level surface, upright.
Alternatively, the edges indicated in
The bag 10 has an opening 22a at the top end 22. The opening leads into a body portion “BP” of the bag for storing liquid, semi-liquid, or solid contents introduced into the bag through the opening 22a.
Returning to
The ziplock seal is hidden in
The seams are joined so that the body portion of the bag is liquid tight; thus, closing the ziplock seal completely seals the contents of the bag against the release of liquid and at least most all odor.
As will be appreciated by persons of ordinary skill, it is possible to provide a line of weakening in the K-seal or modified K-seal embodiments described above, though this is not preferred because it requires tearing the bag over a substantially longer weakened line, and thereby creating a substantially larger opening 24b and making it more difficult to direct the flow of the contents out of the bag.
While the opening 24b is preferably centered on the axis L as shown, this is not essential. It is also not essential that the narrowed portion N extend in the direction of the axis L. For example, the narrowed portion NP may project perpendicular to the axis L, depending from the side S1b of the body portion BP of the bag.
It was recognized by the present inventors that low cost bags such as the forms described above are not well suited for use as emesis bags because the opening 22a does not stay open by itself. To address this problem in a most cost effective manner, metal stays are provided at or near the opening 22a to stay the opening in an open position.
The stays provide one or more deformable (i.e., ductile or malleable, not spring-like) metal strips that can be easily bent during use of the bag into a roughly “V” or “U” shape that tends to maintain the open configuration, and that can also be easily straightened to close the bag, either for sealing (by use of the ziplock seal) or to flatten the bag for space efficient storage in anticipation of disposal after use.
There are numerous alternative embodiments of both the stays and the positions that the stays occupy on (or in) the bag that can be provided according to the principles of the invention. Illustratively,
According to the invention, a stay 26 comprises one or more manually plastically-deformable strips of metal 28 attached to the bag near the top end 22.
The plastically deformable strips are preferably provided in the form of elongate cylindrical wires which are economical and provide a good ratio of strength/weight. For a bag employing sheeting material of about 3 mil thickness and which is about 7″ wide (width “W”), a preferred wire is formed of ductile iron or steel and is about 20 gauge.
The strips may have other than circular cross-sectional configurations, e.g., they may be flat and have rectangular cross-sections, and they may have cross-sectional shapes and sizes that vary along the lengths thereof. The material and dimensions of the strips can vary as well, and the dimensions in particular should vary with the size of the bag, i.e., the larger the bag, the stronger and therefore the stiffer the strips should be. The inventors have discovered, however, that plastic materials are ineffective, and therefore the stays should be formed of metal.
Preferably, a single stay 26 includes two strips 28 (28a, 28b) that are provided in parallel, spaced apart by about 0.5″ in the direction of the axis L. The strips may be embedded in the plastic sheeting material, or made integral with the ziplock seal. They also may be attached directly to the plastic sheeting material, such as by being threaded through or woven into the material.
In a preferred embodiment, a stay 26 also comprises an adhesive-backed substrate 29 in or to which the strips are held captive. For example, the strips may be sandwiched between two elongate strips of plastic or paper material, and adhesive may be applied to the exposed side of one of the strips. As another example, if the elongate strips are formed of plastic, they may be welded or fused to the sheeting material of the bag, eliminating the need for adhesive.
At least one stay 26 is provided for each side (S1a or S2a, and S1b or S2b) of the bag, and the stays are preferably disposed under the aforementioned cuff, which serves to cover, and therefore to protect, them. The stays are preferably positioned centrally relative to the axis L, and have a length that is about ⅔ the width W of the bag, so that for a 7″ wide bag, the stays extend to within about 1″ of the seams 20. However, it has been found that the length of the stays may be reduced such that they can extend over no more than about 50% of the width of the bag and still be effective.
The stays are provided to be easily deformable by manual manipulation, i.e., without the use of tools; more particularly, they are plastically deformable by such manipulation so that they maintain their deformed configurations after the force that produced the deformation is removed.
The embodiment shown in
An alternative embodiment is shown in
So far, stay elements have been described for use in maintaining the opening 22a at the top end 22 of the bag. Also according to the invention, the opening 24a at the bottom end of the bag 30 may be provided with one or more stay elements in the same manner and for the same purpose described above, to facilitate drainage from the bag.
The terms and expressions which have been employed in the foregoing specification are used therein as terms of description and not of limitation, and there is no intention in the use of such terms and expressions to exclude equivalents of the features shown and described or portions thereof, it being recognized that the scope of the invention is defined and limited only by the claims which follow.
Claims
1. An emesis bag, comprising:
- a liquid-tight, tubular body portion defining a tubular axis formed of one or more sheets of a flexible plastic sheeting material, said body portion having a first end through which said axis passes, said first end defining a first opening into said body portion, said first end including a ziplock seal for sealing said first opening, said ziplock seal having permanently joined ends that lie substantially along two opposed seams of the bag, said body portion having two sides extending between said seams; and
- at least two stay elements, one of said stay elements being disposed at said first end on one of said sides and the other of said stay elements being disposed at said first end on the other of said sides, said stay elements extending on both sides of said tubular axis and terminating short of said seams, wherein each of said stay elements includes at least one metal strip.
2. The emesis bag of claim 1, wherein at said first end said two sides each include an overlapping cuff portion so as to create, on each of said sides, a covered space, and wherein said stay elements are disposed within said covered spaces.
3. The emesis bag of claim 2, wherein each of said stay elements includes at least two, spaced-apart and substantially parallel metal strips.
4. The emesis bag of claim 1, wherein each of said stay elements includes at least two, spaced-apart and substantially parallel metal strips.
5. The emesis bag of claim 4, wherein said body portion has a second end opposite said first end at which said body portion is formed in a K-seal or modified K-seal configuration, to facilitate maintaining the bag in a standing, up-right position.
6. The emesis bag of claim 3, wherein said body portion has a second end opposite said first end at which said body portion is formed in a K-seal or modified K-seal configuration, to facilitate maintaining the bag in a standing, up-right position.
7. The emesis bag of claim 2, wherein said body portion has a second end opposite said first end at which said body portion is formed in a K-seal or modified K-seal configuration, to facilitate maintaining the bag in a standing, up-right position.
8. The emesis bag of claim 1, wherein said body portion has a second end opposite said first end at which said body portion is formed in a K-seal or modified K-seal configuration, to facilitate maintaining the bag in a standing, up-right position.
9. The emesis bag of claim 4, wherein said body portion has a second end, opposite said first end, said second end having a second opening into said body portion, said second end being sealed along a weakened line.
10. The emesis bag of claim 9, further comprising two additional stay elements, one of said additional stay elements being disposed at said second end on one of said sides and the other of said additional stay elements being disposed at said second end on the other of said sides.
11. The emesis bag of claim 10, said additional stay elements extending on both sides of said tubular axis and terminating short of said fold lines, wherein each of said stay elements includes at least one metal strip.
12. The emesis bag of claim 3, wherein said body portion has a second end, opposite said first end, said second end having a second opening into said body portion, said second end being sealed along a weakened line.
13. The emesis bag of claim 12, further comprising two additional stay elements, one of said additional stay elements being disposed at said second end on one of said sides and the other of said additional stay elements being disposed at said second end on the other of said sides.
14. The emesis bag of claim 13, said additional stay elements extending on both sides of said tubular axis and terminating short of said fold lines, wherein each of said stay elements includes a metal strip.
15. The emesis bag of claim 2, wherein said body portion has a second end, opposite said first end, said second end having a second opening into said body portion, said second end being sealed along a weakened line.
16. The emesis bag of claim 15, further comprising two additional stay elements, one of said additional stay elements being disposed at said second end on one of said sides and the other of said additional stay elements being disposed at said second end on the other of said sides.
17. The emesis bag of claim 16, said additional stay elements extending on both sides of said tubular axis and terminating short of said fold lines, wherein each of said stay elements includes a metal strip.
18. The emesis bag of claim 1, wherein said body portion has a second end, opposite said first end, said second end having a second opening into said body portion, said second end being sealed along a weakened line.
19. The emesis bag of claim 18, further comprising two additional stay elements, one of said additional stay elements being disposed at said second end on one of said sides and the other of said additional stay elements being disposed at said second end on the other of said sides.
20. The emesis bag of claim 19, said additional stay elements extending on both sides of said tubular axis and terminating short of said fold lines, wherein each of said stay elements includes a metal strip.
Type: Application
Filed: Apr 23, 2009
Publication Date: Oct 28, 2010
Inventors: Natalie R. Herbig (Salem, OR), Alexandra E. Strauss (Browns Summit, NC)
Application Number: 12/386,938
International Classification: B65D 33/16 (20060101);