CA2188838C - Organic fluid gelifying compound - Google Patents
Organic fluid gelifying compound Download PDFInfo
- Publication number
- CA2188838C CA2188838C CA002188838A CA2188838A CA2188838C CA 2188838 C CA2188838 C CA 2188838C CA 002188838 A CA002188838 A CA 002188838A CA 2188838 A CA2188838 A CA 2188838A CA 2188838 C CA2188838 C CA 2188838C
- Authority
- CA
- Canada
- Prior art keywords
- compound
- gelifying
- organic material
- microns
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- 239000012530 fluid Substances 0.000 title claims abstract description 8
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- 210000004369 blood Anatomy 0.000 claims abstract description 26
- 239000004615 ingredient Substances 0.000 claims abstract description 17
- 239000000645 desinfectant Substances 0.000 claims abstract description 12
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 12
- 239000002738 chelating agent Substances 0.000 claims abstract description 11
- 229920000247 superabsorbent polymer Polymers 0.000 claims abstract description 10
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000012676 herbal extract Substances 0.000 claims abstract description 8
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001630 malic acid Substances 0.000 claims abstract description 7
- 235000011090 malic acid Nutrition 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 6
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims abstract description 5
- 239000012425 OXONE® Substances 0.000 claims abstract description 4
- OKBMCNHOEMXPTM-UHFFFAOYSA-M potassium peroxymonosulfate Chemical compound [K+].OOS([O-])(=O)=O OKBMCNHOEMXPTM-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 20
- 239000011368 organic material Substances 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
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- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 4
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- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims description 3
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- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 2
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- XEFQLINVKFYRCS-UHFFFAOYSA-N Triclosan Chemical compound OC1=CC(Cl)=CC=C1OC1=CC=C(Cl)C=C1Cl XEFQLINVKFYRCS-UHFFFAOYSA-N 0.000 claims description 2
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- MSFGZHUJTJBYFA-UHFFFAOYSA-M sodium dichloroisocyanurate Chemical compound [Na+].ClN1C(=O)[N-]C(=O)N(Cl)C1=O MSFGZHUJTJBYFA-UHFFFAOYSA-M 0.000 claims description 2
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- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims 1
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- 230000002708 enhancing effect Effects 0.000 claims 1
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims 1
- 238000001356 surgical procedure Methods 0.000 abstract description 7
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
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- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- YNHJECZULSZAQK-UHFFFAOYSA-N tetraphenylporphyrin Chemical compound C1=CC(C(=C2C=CC(N2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3N2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 YNHJECZULSZAQK-UHFFFAOYSA-N 0.000 description 1
- TXBBUSUXYMIVOS-UHFFFAOYSA-N thenoyltrifluoroacetone Chemical compound FC(F)(F)C(=O)CC(=O)C1=CC=CS1 TXBBUSUXYMIVOS-UHFFFAOYSA-N 0.000 description 1
- 239000007966 viscous suspension Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L11/00—Methods specially adapted for refuse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Epidemiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The compound of the invention comprises a combination of four ingredients: a superabsorbent polymer, particularly sodium polyacrylate; a chemical disinfectant, particularly potassium peroxymonosulfate; an organic deodorant, particularly from herbal extracts; and a chelating agent, particularly malic acid. This blood gelifying compound can be used by medical staff in surgery rooms and the like, when wasted blood from the patient is collected in waste bags, to solidify the fluid inside the bag so as to prevent accidental leaks and contamination. Urine or blood spills, which are often accidentally spilled on the hospital floors, can also be recuperated and disposed of in a timely fashion with the present compound, so as not to compromise the hygienic integrity of the hospital.
Description
2 1 888~8 Organic fluid gelifying compound FIBLD OF THE l~.v~:r..ION
This invention relates to liquid absorbing compounds for gelifying organic - particularly blood -fluids spilled over ground or stored in waste bags, as well as for concurrently killing microbial agents therein and neutralizing foul odours.
BACKGROUND OF THE l~.V~ lON
In hospitals, contaminated organic materials, such as urine or blood, are often accidentally spilled on the floor. These spills must be recuperated and disposed of in a timely fashion, so as not to compromise the hygienic integrity of the hospital. Also, in surgery rooms and the like, wasted blood from the patient is collected in waste bags, which are ackward in handling and prone to accidental leaks and contamination. These safety concerns have been heightened in the last decade by the emergence of an insidious killer, namely the HIV virus causing a currently irreversible lethal medical condition called Acquired Immuno-Deficiency Syndrome (AIDS). The vector of transmission of the VIH virus includes body-released liquids: blood, sperm and amniotic fluid. The workers in hospitals, particularly maintenance personnel that have to deal with these organic liquid spills on the floor and medical personnel working in surgery rooms, have therefore to regularly handle these organic materials. Clearly, nosocomial contamination can be an implicit concern to these hospital employees, and such concern may reduce the efficiency of their work. This is not desirable, of course.
United States patent No 966,060 issued in 1910 to otis SEVERNS, discloses a compound for cleaning ground scattered dust. This compound includes at least the four following ingredients:
._ (a) a carrier element (corn cobs);
(b) a dust absorbing, carrier-stabilized element (oil);
(c) a disinfectant; and (d) a perfume.
s It is understood that such a ground dust cleaning compound would be ineffective in attempting to capture ground-standing water-based liquid bodies, since water is immiscible in oil due to the hydrophobic features of the oil element in the compound.
A similar drawback is found in United States patent No 4,734,393 issued March 29, 1988 to Edward LOWE.
In this patent, there is disclosed an absorbing compound for capturing oil and grease, said compound including at least the following ingredients:
(a) an absorbing element (including fibrous plant materials such as citrus pulp and grain); and (b) a disinfectant (of microbicide capability).
In United States patent No 4,261,849 issued April 14, 1981 to M. BENJAMINSON, there is disclosed a cleaning compound for cleaning inter alia ground-standing urine and vomit (see column 2, lines 35-40). This compound has the capability of:
(a) absorbing hydrophobic AND hydrophilic materials;
(b) deodorizing by not only masking odours and smells but also by neutralizing the odour producing substances; and (c) at least bacteriostatic effect.
However, such a compound is limited to the following ingredients: alkali metal bicarbonate, alkali metal chloride and fuller's earth.
It is further recognized that current synthetic disposable diapers for infants have been using for a number of years a highly efficient urine-absorbing granular material called sodium polyacrylate. Polyacrylate crystals can absorb up to eighty times their own dry weight in water, while concurrently transforming this water into ~ 1 88838 -a gel. This gel then becomes stabilized into the diaper filling, thus preventing accidental outward urine seeping during diaper release from the infant and bin discharge.
OBJECT OF THE INVENTION
The object of this invention is to address the concerns of hospital maintenance crews by both facilitating their work in enabling solidifying of blood and other organic fluids, in containment bags as well as for cleaning liquid organic spills on the ground, wherein the likelihood of nosocomial contamination is substantially decreased.
SUMMARY OF THE INVENTION
The gelifying compound is for use in cleaning liquid water-based organic waste material, and comprises a thoroughly mixed combination of the four following granular ingredients: a) a superabsorbent polymeric element for gelifying the water-based organic waste liquids; b) a deodorant element, said deodorant further cooperating with said polymeric element in stabilizing the gelified waste material; c) a chemical disinfectant of microbicidal properties against all biological material; and d) a chelating agent; wherein said compound promotes easy and timely handling of the liquid waste material during its collection, capture, transportation, and refuse discharge, while substantially precluding cross-contamination and combating foul odours, thanks to the dual deodorizing\stabilizing nature of said deodorizing element.
More particularly, sodium polyacrylate gelifies, i.e. captures liquids by transforming into semi-solid (gel) state any liquid or semi-liquid organic waste material such as vomit, urine, blood, sperm, liquid stools, and exudates, which organic wastes spills are found on floors, beds, upright walls, carpets, furniture and the like. Potassium peroxymonosulfate sanitizes the gelified (captured) organic material. The herbal extracts deodorize the sanitized, gelified material, and further assist in stabilizing the 21 8~838 polyacrylate-born gel.
With respect to the chelating agent, to improve solidification of the blood in these bags, it has been discovered that the calcium ions contained in the blood inhibits to a considerable degree the solidifying or gelification of the polymers. Of course, other electrolytes also present in the blood, such as potassium, sodium and magnesium, play a role, but the calcium in the platelets of which 40% are ionized, is the main culprit.
Our efforts were directed at using chelating agents in order to remove at least the ionized part of the calcium.
Astonishing results were obtained, in various media such as urine, Hanks Balanced Saline Solution, and blood, using ethylenediaminetetraacetic acid disodium salt, ethylene-diaminetetraacetic acid tetrasodium salt; sulfamic acid;
citric acid; gluconic acid; and malic acid.
The four ingredients of the compound, all in powdery form, are to be thoroughly mixed into an homogeneous compound. The granulometry of the compound would critically remain within the 10 to 800 microns diameter range, whereby an unexpected, particularly performant gelifying capability results; although acceptable performance can be achieved with particle size of up to 4,000 ~ .
The present gelifying compound therefore facilitates organic waste cleaning in that the four ingredients therein cooperate in a synergistic way to provide an exceptionally performant compound, whereby the following results are achieved:
1) control of the liquid spill Ground floor may not be exactly level, so that the liquid spill may undesirably flow from one room to another, thus contaminating a larger area than would otherwise be the case. If the liquid spill is on furniture or the like, impregnation of the filler thereof may be substantially reduced or prevented if the gelifying compound is quickly used after spilling action (that is, only superficial water penetration or adsorption would have then occurred). The dry cleaning compound draws under capillarity the liquid to its core.
2) liquid absorption The polyacrylate crystals absorb the aqueous fluid, i.e. binds with same into a gel.
This invention relates to liquid absorbing compounds for gelifying organic - particularly blood -fluids spilled over ground or stored in waste bags, as well as for concurrently killing microbial agents therein and neutralizing foul odours.
BACKGROUND OF THE l~.V~ lON
In hospitals, contaminated organic materials, such as urine or blood, are often accidentally spilled on the floor. These spills must be recuperated and disposed of in a timely fashion, so as not to compromise the hygienic integrity of the hospital. Also, in surgery rooms and the like, wasted blood from the patient is collected in waste bags, which are ackward in handling and prone to accidental leaks and contamination. These safety concerns have been heightened in the last decade by the emergence of an insidious killer, namely the HIV virus causing a currently irreversible lethal medical condition called Acquired Immuno-Deficiency Syndrome (AIDS). The vector of transmission of the VIH virus includes body-released liquids: blood, sperm and amniotic fluid. The workers in hospitals, particularly maintenance personnel that have to deal with these organic liquid spills on the floor and medical personnel working in surgery rooms, have therefore to regularly handle these organic materials. Clearly, nosocomial contamination can be an implicit concern to these hospital employees, and such concern may reduce the efficiency of their work. This is not desirable, of course.
United States patent No 966,060 issued in 1910 to otis SEVERNS, discloses a compound for cleaning ground scattered dust. This compound includes at least the four following ingredients:
._ (a) a carrier element (corn cobs);
(b) a dust absorbing, carrier-stabilized element (oil);
(c) a disinfectant; and (d) a perfume.
s It is understood that such a ground dust cleaning compound would be ineffective in attempting to capture ground-standing water-based liquid bodies, since water is immiscible in oil due to the hydrophobic features of the oil element in the compound.
A similar drawback is found in United States patent No 4,734,393 issued March 29, 1988 to Edward LOWE.
In this patent, there is disclosed an absorbing compound for capturing oil and grease, said compound including at least the following ingredients:
(a) an absorbing element (including fibrous plant materials such as citrus pulp and grain); and (b) a disinfectant (of microbicide capability).
In United States patent No 4,261,849 issued April 14, 1981 to M. BENJAMINSON, there is disclosed a cleaning compound for cleaning inter alia ground-standing urine and vomit (see column 2, lines 35-40). This compound has the capability of:
(a) absorbing hydrophobic AND hydrophilic materials;
(b) deodorizing by not only masking odours and smells but also by neutralizing the odour producing substances; and (c) at least bacteriostatic effect.
However, such a compound is limited to the following ingredients: alkali metal bicarbonate, alkali metal chloride and fuller's earth.
It is further recognized that current synthetic disposable diapers for infants have been using for a number of years a highly efficient urine-absorbing granular material called sodium polyacrylate. Polyacrylate crystals can absorb up to eighty times their own dry weight in water, while concurrently transforming this water into ~ 1 88838 -a gel. This gel then becomes stabilized into the diaper filling, thus preventing accidental outward urine seeping during diaper release from the infant and bin discharge.
OBJECT OF THE INVENTION
The object of this invention is to address the concerns of hospital maintenance crews by both facilitating their work in enabling solidifying of blood and other organic fluids, in containment bags as well as for cleaning liquid organic spills on the ground, wherein the likelihood of nosocomial contamination is substantially decreased.
SUMMARY OF THE INVENTION
The gelifying compound is for use in cleaning liquid water-based organic waste material, and comprises a thoroughly mixed combination of the four following granular ingredients: a) a superabsorbent polymeric element for gelifying the water-based organic waste liquids; b) a deodorant element, said deodorant further cooperating with said polymeric element in stabilizing the gelified waste material; c) a chemical disinfectant of microbicidal properties against all biological material; and d) a chelating agent; wherein said compound promotes easy and timely handling of the liquid waste material during its collection, capture, transportation, and refuse discharge, while substantially precluding cross-contamination and combating foul odours, thanks to the dual deodorizing\stabilizing nature of said deodorizing element.
More particularly, sodium polyacrylate gelifies, i.e. captures liquids by transforming into semi-solid (gel) state any liquid or semi-liquid organic waste material such as vomit, urine, blood, sperm, liquid stools, and exudates, which organic wastes spills are found on floors, beds, upright walls, carpets, furniture and the like. Potassium peroxymonosulfate sanitizes the gelified (captured) organic material. The herbal extracts deodorize the sanitized, gelified material, and further assist in stabilizing the 21 8~838 polyacrylate-born gel.
With respect to the chelating agent, to improve solidification of the blood in these bags, it has been discovered that the calcium ions contained in the blood inhibits to a considerable degree the solidifying or gelification of the polymers. Of course, other electrolytes also present in the blood, such as potassium, sodium and magnesium, play a role, but the calcium in the platelets of which 40% are ionized, is the main culprit.
Our efforts were directed at using chelating agents in order to remove at least the ionized part of the calcium.
Astonishing results were obtained, in various media such as urine, Hanks Balanced Saline Solution, and blood, using ethylenediaminetetraacetic acid disodium salt, ethylene-diaminetetraacetic acid tetrasodium salt; sulfamic acid;
citric acid; gluconic acid; and malic acid.
The four ingredients of the compound, all in powdery form, are to be thoroughly mixed into an homogeneous compound. The granulometry of the compound would critically remain within the 10 to 800 microns diameter range, whereby an unexpected, particularly performant gelifying capability results; although acceptable performance can be achieved with particle size of up to 4,000 ~ .
The present gelifying compound therefore facilitates organic waste cleaning in that the four ingredients therein cooperate in a synergistic way to provide an exceptionally performant compound, whereby the following results are achieved:
1) control of the liquid spill Ground floor may not be exactly level, so that the liquid spill may undesirably flow from one room to another, thus contaminating a larger area than would otherwise be the case. If the liquid spill is on furniture or the like, impregnation of the filler thereof may be substantially reduced or prevented if the gelifying compound is quickly used after spilling action (that is, only superficial water penetration or adsorption would have then occurred). The dry cleaning compound draws under capillarity the liquid to its core.
2) liquid absorption The polyacrylate crystals absorb the aqueous fluid, i.e. binds with same into a gel.
3) stabilization The captured waste liquid is stabilized by the herbal extracts forming the deodorizing element of the compound. This stabilized gel is then easier to handle with the cleaning implements of the maintenance crews. By gel handling, there is meant:
- capture;
- lift from ground or other previously stained surface;
- transportation over or relative to said surface; and - discharge into a refuse bin or sewage system.
Hydrogel formation occurs very rapidly: it has been clocked by the present inventor as taking anywhere between about half a minute to one minute, starting from first contact.
- capture;
- lift from ground or other previously stained surface;
- transportation over or relative to said surface; and - discharge into a refuse bin or sewage system.
Hydrogel formation occurs very rapidly: it has been clocked by the present inventor as taking anywhere between about half a minute to one minute, starting from first contact.
4) microbicidal action This gelifying compound has a 100 % lethal action against all biological material with which it comes in contact. Lethality further occurs almost immediately, from first contact with the biological material to nucleic acid damage. The term biological material here is to be construed -as including any material capable of self-replication either directly or indirectly, and relates both to living and non living material.
Representative examples of living biological material include bacteria, fungi including yeast, algae, protozoa, and the like. Examples of non-living biological material includes viruses, vectors, cell organelles, plasmids and the like material existing in and reproducible solely from a living cell.
Representative examples of living biological material include bacteria, fungi including yeast, algae, protozoa, and the like. Examples of non-living biological material includes viruses, vectors, cell organelles, plasmids and the like material existing in and reproducible solely from a living cell.
5) deodorizing action Foul and nauseous odours are eliminated and neutralized by the plant extract element of the compound.
The present gelifying compound, although particularly advantageous for hospital maintenance crews, is not limited to the human health care environment, since its use could be extended to veterinary clinics, domestic homes, dental clinics, motor vehicles, aircrafts, horse stables, slaughter houses, and the like.
The superabsorbent polymer could alternately consist of either one of the following products: cellulosic by-products, starch by-products, polyvinyl alcohol by-products, cellulosic by-product; any one of the hydrophylic polymers; and the like. Preferably, this superabsorbent polymer, particularly polyacrylamide or sodium polyacrylate, would further be mixed with some bloated smectic clay, also known as bentonite. Bentonite, from the montmorillonites family ( Al2O3 . 4 sio2 . H20 ), and because of its micro-crystallinity, offers some hydrophilic surface sites presenting a high capacity of cationic exchange capable of water absorbency. They form highly viscous suspensions or stable gels.
For the disinfectant, other suitable elemental ._ constituents could include sodium dichlorocyanurate, chloramine, triclosan, quaternary ammonium salts, phenol, calcium hypochlorite, and the like.
The deodorizer could alternately consist of any one of the following ingredients, having a molecular weight preferably under 200 Daltons: hydro-alcoholic extracts, stabilized, steam-distilled, and evaporated to dryness.
Said herbal extracts could come from the roots, stems, buds or flowers of the following members of the plant kingdom (the active chemical products embedded therein have been identified after each herbal extract in parentheses):
peach tree ( C~0 Hl8 ~2 ) and ( Cs Hln ~ ) maple tree ( C7 Hlo ~2 ) and ( C7 Hlo 03 cucumber ( C10 Hl6 0 ) and ( C10 Hl4 ~2 azalea ( C7 H16 ~ ) angelica ( Cs H6 ~2 ) cherry tree ( Cs H6 ~3 ) chestnut tree ( C7 H6 ~2 ) and ( Cs Hlo ~ ) cedar tree ( C10 H18 0 ) and ( Cs Hs ~2 cypress ( C10 Hl2 0 ) and ( C6 Hl4 0 white birch ( C7 H8 0 ) and ( C7 H8 ~2 strawberry ( C10 Hlo ~2 ) and ( Cl2 Hl6 ~2 ) butter bur ( C9 Hlo ~3 ) and ( C10 Hlo ~4 pine tree ( C10 Hl6 ) and ( C10 Hl6 0 rose ( Cl2 Hl6 ~2 ) and ( C10 Hl8 0 ) These herbal extracts are effective for their stated purpose, since they all contain the hydroxyl group or the ester group.
A chelating agent is a chemical compound including a heterocyclic ring containing a metal ion attached by coordinate bonds to at least two nonmetal ions in the same molecule. Some classes of chelating agents -include:
- polyphosphates: sodium tripolyphosphate, and hexametaphosphoric acid;
- aminocarboxylic acids: ethylenediaminetetraacetic acid, hydroxyethylenediaminetriacetic acid, nitrilotriacetic acid, N-dihydroxyethylglycine, and ethylenebis(hydroxyphenylglycine);
- 1,3-diketones: acetylacetone, trifluoroacetylacetone, and thenoyltrifluoroacetone;
- hydroxycarboxylic acids: tartaric acid, citric acid, gluconic acid, and 5-sulfosalicylic acid;
- polyamines: ethylenediamine, triethylenetetramine, and triaminotriethylamine;
- aminoalcohols: triethanolamine, and N-hydroxyethylethylenediamine;
- aromatic heterocyclic bases: dipyridyl, and o-phenanthroline;
- phenols: salicylaldehyde, disulfopyrocatechol, and chromotropic acid;
- aminophenols: oxine, 8-hydroxyquinoline, and oxinesulfonic acid;
- oximes: dimethylglyoxime, and salicyladoxime;
- Shiff bases: disalicylaldehyde 1,2-propylenediimine;
- tetrapyrroles: tetraphenylporphin, and phthalocyanine;
_ sulfur compounds: toluenedithiol (Dithiol), dimercaptopropanol, thioglycolic acid, potassium ethyl xanthate, sodium diethyldithiocarbamate, dithizone, diethyl dithiophosphoric acid, and thiourea;
- synthetic macrocyclic compounds: dibenzo[18]crown-6(5), (CH3)6[14]4,11-dieneN4(6), and (2.2.2-cryptate)(7);
- polymeric: polyethylenimine, polymethacryloylacetone, and poly(p-vinylbenzyliminodiacetic acid);
- phosphonic acids: nitrilotrimethylenephosphonic acid, ethylenediaminetetra(methylenephosphonic acid), and hydroxyethylidenediphosphonic acid.
An important feature of the present gelifying compound is its use in surgery rooms where important quantities of blood are lost. In surgery rooms, e.g., the 5patient is connected to a suction pump to remove the excess blood in the excision made by the surgeon so that he can see where he is cutting, and must also have a constant unobstructed view at the organs being removed or treated.
A tube is connected to a vacuum suction pump and another 10tube is connected to the top mouth of the suction bag, which is used by a nurse or an assistant in surgery to follow practically the surgeon's knife and pump the blood into the suction bag which is itself held in place by a container. Once the surgery is over, the operating staff 15is left with one or more bags each containing blood lost during the surgical operation. These bags are considered hazardous materials, the more so in their liquid state; and they are not practical for incineration, because of their fluid state.
20To improve solidification of the blood in these bags, it has been discovered that the calcium ions contained in the blood inhibits to a considerable degree the solidifying or gelification of the polymers. Of course, other electrolytes also present in the blood, such 25as potassium, sodium or magnesium, play a role, but the calcium in the platelets of which 40% are ionized, is the main culprit. Our efforts were directed at using chelating agents in order to remove at least the ionized part of the calcium. Astonishing results were obtained, in various 30media such as urine, Hanks Balanced Saline Solution, and blood, using ethylenediaminetetraacetic acid disodium salt, ethylenediamine-tetraacetic acid tetrasodium salt; sulfamic acid; citric acid; gluconic acid; and malic acid. The best results were achieved with malic acid, the time required 35for the gelification of one liter of human blood being 2 1 88~338 reduced by 52 % when compared to the use of ethylenediaminetetraacetic acid disodium salt. This is easily understandable since the use of the sodium salt increases the amount of electrolytes.
The showing of performance criticality of this gelifying compound according to the present invention, is revealed in part by the enhanced absorption capability thereof, which increases relative to standard absorption capability of sodium polyacrylate taken in isolation. More particularly, this is to say that the water absorption capability of the present gelifying compound increases from 80 times - which is the standard value for sodium polyacrylate - to up to 100 times its dry weight. Varying pH values of the environment may slightly affect these performances.
Another showing of criticality appears in the granulometry of the thoroughly mixed dry ingredients in the present compound, which for best results, should be restricted to a range extending between 10 to 800 microns ( 10-6 meter, ~ ); although still acceptable results could be achieved even with dry particle size reaching up to 4,000 ~.
The preferred respective proportions by weight of the various ingredients in the present cleaning compound should be as follows:
(a) superabsorbent polymer: between 5 and 99.99 % ;
(b) disinfectant: between 0,001 and 60 %; and (c) deodorizer: between 0,009 and 35 %.
Empirical testing has revealed that the hereinbelow proportions by weight of ingredients for the compound provided excellent results:
- disinfectant: 0.7 %
- deodorizer: 1.8 %
- sodium polyacrylate:
21 888:3~
(a) particle size of 10-400 ~ : 24.80%
(b) particle size of 100-600 ~ : 18.960 %
(c) particle size of 400-800 ~ : 52.940 %
- malic acid 0.800 %
These ingredients, with said empirical testing result values, have demonstrated that the present gelifying compound has the following properties:
- 100 % bactericidal lethality on Bacillus subtilis and on Escherichia Coli within one minute timeline;
- low skin-irritation;
- good chemical stability;
- no side effect produced when the potassium peroxymonosulfate becomes accidentally admixed with alkaline or acidic substances (i.e. release to the environment of free chlorine or other noxious gases does not occur).
Once the blood is solidified in the bag, it is much easier to handle and offers much less danger to the person carrying the bag, since the blood cannot spill out or leak because of its solid state, the importance of the bactericidal activity and the absence of undesirable odor.
The product is dispersed in specially designed bottles with caps adapted to suction bags, as soon as the blood reaches the bottom of the bag, it is solidified or gelified, disinfected and rendered odorless.
The present gelifying compound, although particularly advantageous for hospital maintenance crews, is not limited to the human health care environment, since its use could be extended to veterinary clinics, domestic homes, dental clinics, motor vehicles, aircrafts, horse stables, slaughter houses, and the like.
The superabsorbent polymer could alternately consist of either one of the following products: cellulosic by-products, starch by-products, polyvinyl alcohol by-products, cellulosic by-product; any one of the hydrophylic polymers; and the like. Preferably, this superabsorbent polymer, particularly polyacrylamide or sodium polyacrylate, would further be mixed with some bloated smectic clay, also known as bentonite. Bentonite, from the montmorillonites family ( Al2O3 . 4 sio2 . H20 ), and because of its micro-crystallinity, offers some hydrophilic surface sites presenting a high capacity of cationic exchange capable of water absorbency. They form highly viscous suspensions or stable gels.
For the disinfectant, other suitable elemental ._ constituents could include sodium dichlorocyanurate, chloramine, triclosan, quaternary ammonium salts, phenol, calcium hypochlorite, and the like.
The deodorizer could alternately consist of any one of the following ingredients, having a molecular weight preferably under 200 Daltons: hydro-alcoholic extracts, stabilized, steam-distilled, and evaporated to dryness.
Said herbal extracts could come from the roots, stems, buds or flowers of the following members of the plant kingdom (the active chemical products embedded therein have been identified after each herbal extract in parentheses):
peach tree ( C~0 Hl8 ~2 ) and ( Cs Hln ~ ) maple tree ( C7 Hlo ~2 ) and ( C7 Hlo 03 cucumber ( C10 Hl6 0 ) and ( C10 Hl4 ~2 azalea ( C7 H16 ~ ) angelica ( Cs H6 ~2 ) cherry tree ( Cs H6 ~3 ) chestnut tree ( C7 H6 ~2 ) and ( Cs Hlo ~ ) cedar tree ( C10 H18 0 ) and ( Cs Hs ~2 cypress ( C10 Hl2 0 ) and ( C6 Hl4 0 white birch ( C7 H8 0 ) and ( C7 H8 ~2 strawberry ( C10 Hlo ~2 ) and ( Cl2 Hl6 ~2 ) butter bur ( C9 Hlo ~3 ) and ( C10 Hlo ~4 pine tree ( C10 Hl6 ) and ( C10 Hl6 0 rose ( Cl2 Hl6 ~2 ) and ( C10 Hl8 0 ) These herbal extracts are effective for their stated purpose, since they all contain the hydroxyl group or the ester group.
A chelating agent is a chemical compound including a heterocyclic ring containing a metal ion attached by coordinate bonds to at least two nonmetal ions in the same molecule. Some classes of chelating agents -include:
- polyphosphates: sodium tripolyphosphate, and hexametaphosphoric acid;
- aminocarboxylic acids: ethylenediaminetetraacetic acid, hydroxyethylenediaminetriacetic acid, nitrilotriacetic acid, N-dihydroxyethylglycine, and ethylenebis(hydroxyphenylglycine);
- 1,3-diketones: acetylacetone, trifluoroacetylacetone, and thenoyltrifluoroacetone;
- hydroxycarboxylic acids: tartaric acid, citric acid, gluconic acid, and 5-sulfosalicylic acid;
- polyamines: ethylenediamine, triethylenetetramine, and triaminotriethylamine;
- aminoalcohols: triethanolamine, and N-hydroxyethylethylenediamine;
- aromatic heterocyclic bases: dipyridyl, and o-phenanthroline;
- phenols: salicylaldehyde, disulfopyrocatechol, and chromotropic acid;
- aminophenols: oxine, 8-hydroxyquinoline, and oxinesulfonic acid;
- oximes: dimethylglyoxime, and salicyladoxime;
- Shiff bases: disalicylaldehyde 1,2-propylenediimine;
- tetrapyrroles: tetraphenylporphin, and phthalocyanine;
_ sulfur compounds: toluenedithiol (Dithiol), dimercaptopropanol, thioglycolic acid, potassium ethyl xanthate, sodium diethyldithiocarbamate, dithizone, diethyl dithiophosphoric acid, and thiourea;
- synthetic macrocyclic compounds: dibenzo[18]crown-6(5), (CH3)6[14]4,11-dieneN4(6), and (2.2.2-cryptate)(7);
- polymeric: polyethylenimine, polymethacryloylacetone, and poly(p-vinylbenzyliminodiacetic acid);
- phosphonic acids: nitrilotrimethylenephosphonic acid, ethylenediaminetetra(methylenephosphonic acid), and hydroxyethylidenediphosphonic acid.
An important feature of the present gelifying compound is its use in surgery rooms where important quantities of blood are lost. In surgery rooms, e.g., the 5patient is connected to a suction pump to remove the excess blood in the excision made by the surgeon so that he can see where he is cutting, and must also have a constant unobstructed view at the organs being removed or treated.
A tube is connected to a vacuum suction pump and another 10tube is connected to the top mouth of the suction bag, which is used by a nurse or an assistant in surgery to follow practically the surgeon's knife and pump the blood into the suction bag which is itself held in place by a container. Once the surgery is over, the operating staff 15is left with one or more bags each containing blood lost during the surgical operation. These bags are considered hazardous materials, the more so in their liquid state; and they are not practical for incineration, because of their fluid state.
20To improve solidification of the blood in these bags, it has been discovered that the calcium ions contained in the blood inhibits to a considerable degree the solidifying or gelification of the polymers. Of course, other electrolytes also present in the blood, such 25as potassium, sodium or magnesium, play a role, but the calcium in the platelets of which 40% are ionized, is the main culprit. Our efforts were directed at using chelating agents in order to remove at least the ionized part of the calcium. Astonishing results were obtained, in various 30media such as urine, Hanks Balanced Saline Solution, and blood, using ethylenediaminetetraacetic acid disodium salt, ethylenediamine-tetraacetic acid tetrasodium salt; sulfamic acid; citric acid; gluconic acid; and malic acid. The best results were achieved with malic acid, the time required 35for the gelification of one liter of human blood being 2 1 88~338 reduced by 52 % when compared to the use of ethylenediaminetetraacetic acid disodium salt. This is easily understandable since the use of the sodium salt increases the amount of electrolytes.
The showing of performance criticality of this gelifying compound according to the present invention, is revealed in part by the enhanced absorption capability thereof, which increases relative to standard absorption capability of sodium polyacrylate taken in isolation. More particularly, this is to say that the water absorption capability of the present gelifying compound increases from 80 times - which is the standard value for sodium polyacrylate - to up to 100 times its dry weight. Varying pH values of the environment may slightly affect these performances.
Another showing of criticality appears in the granulometry of the thoroughly mixed dry ingredients in the present compound, which for best results, should be restricted to a range extending between 10 to 800 microns ( 10-6 meter, ~ ); although still acceptable results could be achieved even with dry particle size reaching up to 4,000 ~.
The preferred respective proportions by weight of the various ingredients in the present cleaning compound should be as follows:
(a) superabsorbent polymer: between 5 and 99.99 % ;
(b) disinfectant: between 0,001 and 60 %; and (c) deodorizer: between 0,009 and 35 %.
Empirical testing has revealed that the hereinbelow proportions by weight of ingredients for the compound provided excellent results:
- disinfectant: 0.7 %
- deodorizer: 1.8 %
- sodium polyacrylate:
21 888:3~
(a) particle size of 10-400 ~ : 24.80%
(b) particle size of 100-600 ~ : 18.960 %
(c) particle size of 400-800 ~ : 52.940 %
- malic acid 0.800 %
These ingredients, with said empirical testing result values, have demonstrated that the present gelifying compound has the following properties:
- 100 % bactericidal lethality on Bacillus subtilis and on Escherichia Coli within one minute timeline;
- low skin-irritation;
- good chemical stability;
- no side effect produced when the potassium peroxymonosulfate becomes accidentally admixed with alkaline or acidic substances (i.e. release to the environment of free chlorine or other noxious gases does not occur).
Once the blood is solidified in the bag, it is much easier to handle and offers much less danger to the person carrying the bag, since the blood cannot spill out or leak because of its solid state, the importance of the bactericidal activity and the absence of undesirable odor.
The product is dispersed in specially designed bottles with caps adapted to suction bags, as soon as the blood reaches the bottom of the bag, it is solidified or gelified, disinfected and rendered odorless.
Claims (12)
The embodiments of the invention, in which an exclusive property or privilege is claimed, are defined as follows:
1. A gelifying compound for use in solidifying liquid water-based organic waste material, and comprising a thoroughly mixed combination of the four following ingredients:
a) a granular superabsorbent polymer, for gelifying the water-based organic waste material into a gel;
b) a non-metallic deodorizer having inherent means for cooperating with said polymer in stabilizing said gel, said inherent stabilizing means consisting of herbal extracts form the roots, stems, buds or flower of the following group of members of the plant kingdom; peach tree, maple tree, cucumber, azalea, angelica, cherry tree, chestnut, rose, pine, cedar, cypress, white birch, strawberry, and butterbur, said herbal extracts enhancing the water absorbing capability of said polymer wherein stabilization of the gelified waste material is improved together with ease of handling thereof;
c) a granular chemical disinfectant, having microbicidal properties against all biological material; and d) a chelating agent, for neutralizing calcium ions contained in the organic material so as to enhance gelification of the polymer;
wherein said compound promotes easy and timely handling of the liquid organic waste material during its collection, capture, transportation, and refuse discharge, while precluding cross-contamination and combating foul odours, as a result of the dual deodorizing\stabilizing nature of said deodorizer.
a) a granular superabsorbent polymer, for gelifying the water-based organic waste material into a gel;
b) a non-metallic deodorizer having inherent means for cooperating with said polymer in stabilizing said gel, said inherent stabilizing means consisting of herbal extracts form the roots, stems, buds or flower of the following group of members of the plant kingdom; peach tree, maple tree, cucumber, azalea, angelica, cherry tree, chestnut, rose, pine, cedar, cypress, white birch, strawberry, and butterbur, said herbal extracts enhancing the water absorbing capability of said polymer wherein stabilization of the gelified waste material is improved together with ease of handling thereof;
c) a granular chemical disinfectant, having microbicidal properties against all biological material; and d) a chelating agent, for neutralizing calcium ions contained in the organic material so as to enhance gelification of the polymer;
wherein said compound promotes easy and timely handling of the liquid organic waste material during its collection, capture, transportation, and refuse discharge, while precluding cross-contamination and combating foul odours, as a result of the dual deodorizing\stabilizing nature of said deodorizer.
2. An organic fluid gelifying compound as defined in claim 1, wherein the granulometry of the granular elements in said compound does not exceed 4,000 microns.
3. An organic material gelifying compound as defined in claim 2, wherein said granulometry of the granular elements in said compound is restricted to a range extending between 10 to 800 microns.
4. An organic material gelifying compound as defined in claim 1, wherein the respective proportions by weight of the various ingredients in said gelifying compound are as follows:
(a) superabsorbent polymer: between 4.99 and 94.99 % ;
(b) disinfectant: between 0.001 and 60 % ;
(c) deodorizer: between 0.009 and 35 %; and (d) chelating agent: between 0.01 and 5 %.
(a) superabsorbent polymer: between 4.99 and 94.99 % ;
(b) disinfectant: between 0.001 and 60 % ;
(c) deodorizer: between 0.009 and 35 %; and (d) chelating agent: between 0.01 and 5 %.
5. An organic material gelifying compound as defined in claim 1, wherein the disinfectant is selected from the group comprising potassium peroxymonosulfate, sodium dichlorocyanurate, chloramine, triclosan, quaternary ammonium salts, phenol, calcium hypochlorite, and sodium hypochlorite.
6. An organic material compound as defined in claim 4, wherein said superabsorbent polymer is sodium polyacrylate.
7. An organic material gelifying compound as defined in claim 6, further including bloated smectic clay, being thoroughly mixed with the other ingredients.
8. An organic material gelifying compound as defined in claim 1, wherein said superabsorbent polymer is sodium polyacrylate and the respective proportions by weight of the ingredients are as follows:
- disinfectant: 0.7 %
- deodorizer: 1.80 %
- sodium polyacrylate:
(a) particle size of 10-400 microns: 24.800 %
(b) particle size of 100-600 microns: 18.960 %
(c) particle size of 400-800 microns: 52.940 %
- chelating agent 0.800 %
- disinfectant: 0.7 %
- deodorizer: 1.80 %
- sodium polyacrylate:
(a) particle size of 10-400 microns: 24.800 %
(b) particle size of 100-600 microns: 18.960 %
(c) particle size of 400-800 microns: 52.940 %
- chelating agent 0.800 %
9. An organic material gelifying compound as in claim 1, wherein said chelating agent is chosen from the group consisting of:
(a) EthyleneDiamineTetraAcetic acid disodium salt;
(b) EthyleneDiamineTetraAcetic acid tetrasodium salt;
(c) sulfamic acid;
(d) citric acid;
(e) gluconic acid; and (f) malic acid.
(a) EthyleneDiamineTetraAcetic acid disodium salt;
(b) EthyleneDiamineTetraAcetic acid tetrasodium salt;
(c) sulfamic acid;
(d) citric acid;
(e) gluconic acid; and (f) malic acid.
10. An organic material gelifying compound as defined in claim 9, wherein said superabsorbent polymer is sodium polyacrylate and the respective proportions by weight of the ingredients are as follows:
- disinfectant: 0.7 %
- deodorizer: 1.800 - sodium polyacrylate:
(a) particle size of 10-400 microns: 24.800 %
(b) particle size of 100-600 microns: 18.960 %
(c) particle size of 400-800 microns: 52.940 %
- malic acid 0.800 %
- disinfectant: 0.7 %
- deodorizer: 1.800 - sodium polyacrylate:
(a) particle size of 10-400 microns: 24.800 %
(b) particle size of 100-600 microns: 18.960 %
(c) particle size of 400-800 microns: 52.940 %
- malic acid 0.800 %
11. An organic material gelifying compound as defined in claim 10, wherein the organic material is human blood.
12. An organic material gelifying compound as defined in claim 4, wherein said superabsorbent polymer is selected from the class including any one of the hydrophilic polymers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CA002188838A CA2188838C (en) | 1996-10-25 | 1996-10-25 | Organic fluid gelifying compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CA002188838A CA2188838C (en) | 1996-10-25 | 1996-10-25 | Organic fluid gelifying compound |
Publications (2)
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CA2188838A1 CA2188838A1 (en) | 1998-04-25 |
CA2188838C true CA2188838C (en) | 2001-02-27 |
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CA002188838A Expired - Fee Related CA2188838C (en) | 1996-10-25 | 1996-10-25 | Organic fluid gelifying compound |
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CA (1) | CA2188838C (en) |
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WO2005042042A1 (en) | 2003-10-31 | 2005-05-12 | Basf Aktiengesellschaft | Blood- and/or body fluid-absorbing polymer particles |
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1996
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