CN108836623B - Medical spherical sponge eye brush and preparation method thereof - Google Patents
Medical spherical sponge eye brush and preparation method thereof Download PDFInfo
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- CN108836623B CN108836623B CN201810699336.XA CN201810699336A CN108836623B CN 108836623 B CN108836623 B CN 108836623B CN 201810699336 A CN201810699336 A CN 201810699336A CN 108836623 B CN108836623 B CN 108836623B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 238000001179 sorption measurement Methods 0.000 claims description 48
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 25
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 25
- 238000005187 foaming Methods 0.000 claims description 22
- 239000000243 solution Substances 0.000 claims description 20
- 239000003054 catalyst Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 239000003431 cross linking reagent Substances 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 17
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims description 11
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 claims description 11
- 229920002554 vinyl polymer Polymers 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 6
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 238000006359 acetalization reaction Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000001299 aldehydes Chemical class 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 229920001592 potato starch Polymers 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 229920002261 Corn starch Polymers 0.000 claims description 3
- 244000017020 Ipomoea batatas Species 0.000 claims description 3
- 235000002678 Ipomoea batatas Nutrition 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 239000008120 corn starch Substances 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 claims description 3
- 229940100445 wheat starch Drugs 0.000 claims description 3
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 7
- 210000000416 exudates and transudate Anatomy 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 210000003128 head Anatomy 0.000 description 29
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical group O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000006136 alcoholysis reaction Methods 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/046—Elimination of a polymeric phase
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
Abstract
The invention provides a medical spherical sponge eye brush and a preparation process thereof. The invention can effectively absorb the eye exudates or cleaning liquid, effectively remove the eye foreign matters, has no damage to eyes, and has simple production process and small loss.
Description
Technical Field
The invention relates to a medical spherical sponge eye brush and a preparation method thereof, the medical spherical sponge eye brush consists of a three-dimensional porous polyvinyl acetal sponge and a plastic handle, and belongs to the field of medical appliances, and the appliance is suitable for imbibition and cleaning of ophthalmic surgery.
Background
The eye brush product is applied to clinic for more than 30 years, is mainly used for absorbing and cleaning in ophthalmic surgery, and is usually composed of a sponge head and a plastic handle. The sponge head is triangular or polygonal, and is made of PVA or cellulose, such as PVA sponge eye brush (Beijing Kangan, shandong Weigao, american Dunli), and cellulose sponge eye brush (Aierkang company, U.S. BVI). The eye brush has the problem that the cleaning effect is poor because the appearance of the sponge head is irregular and the eye brush can only be used for wiping by hand.
Chinese patent CN 104837443A mentions an electric device for treating ophthalmic diseases, in which the sponge swab is driven by an electromechanical device to impact the foreign matter in a high-speed rotation, vibration or reciprocating motion manner, so that the foreign matter is effectively removed, but the sponge swab has a risk of causing mechanical damage to eyes in the process of high-speed wiping or vibration due to rough surface.
The traditional eye brush product is produced by foaming and molding the sponge alone, and after the sponge is molded, the sponge is assembled with the plastic handle through a series of cutting, compressing, assembling, welding or dispensing procedures. The method has the advantages of complex process, high loss, low efficiency and high cost.
Disclosure of Invention
In view of the above, the invention provides a medical spherical sponge eye brush and a preparation method thereof, which can effectively absorb eye exudates or cleaning liquid and effectively remove eye foreign matters, and has no damage to eyes, and meanwhile, the eye brush has simple production process and small loss.
The technical scheme of the invention is as follows:
the medical spherical sponge eye brush is characterized by comprising a support handle, wherein one end of the support handle is provided with an adsorption part, the other end of the support handle is provided with a connecting part, and the adsorption part is connected with a hemispherical part.
Further, the hemispherical part and the adsorption part form an adsorption head, and the adsorption head is a three-dimensional porous spherical polyvinyl acetal adsorption head.
Further, the sponge of the adsorption head has a liquid absorption rate of 500-1000%, a porosity of 80-95%, a pore diameter of 0.1-1mm, an acetalization degree of 50-85% and an elastic modulus of 8-25Kpa.
Further, the radius of the sphere of the hemispherical part is 2.5-5mm, and the radius of the horizontal section of the adsorption part is 2.5-5mm.
Further, the support handle is a plastic support handle.
The preparation process of the medical spherical sponge eye brush comprises the following steps:
s1, adding a pore-forming agent, a cross-linking agent and a catalyst into a polyvinyl alcohol aqueous solution to compound into foaming liquid;
s2, injecting foaming liquid into the die cavity and inserting a plastic handle;
s3, preserving the heat of the fixed die for 10-20 hours at the temperature of 60 ℃ and shaping;
s4, demolding, cleaning and drying to obtain the spherical medical sponge eye brush;
s5, packaging the obtained eye brush, and then sterilizing by irradiation.
Further, the foaming liquid in the step S1 comprises the following raw materials in parts by weight: polyvinyl alcohol: 8-16 parts; 2.8-3.2 parts of pore-forming agent; crosslinking agent: 6-8 parts of 36-38% aldehyde solution; catalyst: 10-15 parts of 49% acid solution.
Further, the polymerization degree of the polyvinyl alcohol in the step S1 is 1500-2000, and the alcoholysis degree is 70% -99%.
Further, the solution concentration of the polyvinyl alcohol aqueous solution in the step S1 is 10% -15%.
Further, in step S1, the pore-forming agent is at least one of wheat starch, corn starch, potato starch, and sweet potato starch.
Further, in the step S1, the cross-linking agent is at least one of formaldehyde, acetaldehyde and butyraldehyde.
Further, in the step S1, the catalyst is at least one of sulfuric acid, hydrochloric acid, nitric acid, and phosphoric acid.
Further, in the spherical mold cavity in the step S2, the bottom is a cavity formed by a hemisphere and a cylinder, the diameter of the hemisphere is 5-10mm, the diameter of the cross section of the cylinder is the same as that of the sphere, and the height is 5-10mm.
The invention provides a medical spherical sponge eye brush and a preparation method thereof, wherein a sponge head is formed by a polyvinyl acetal hemispherical part and an adsorption part, and the polyvinyl acetal sponge has high liquid absorption capacity, can absorb water with the weight of up to 10 times, is soft and comfortable after absorbing liquid, and greatly reduces the risk of mechanical injury; the sponge head has regular appearance and good compliance, and the boss type connecting part is matched with electric equipment to realize the high-speed rotating and cleaning functions. The invention can not only largely absorb exudates or cleaning liquid in the ophthalmic operation process, but also be matched with electric equipment to realize high-speed rotation and effectively remove eye foreign matters, and simultaneously reduce the risk of mechanical damage to eye tissues.
The medical spherical sponge eye brush sponge head is formed at one end of the plastic handle in the spherical mold cavity by foaming and molding, and has simple production process and low loss.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The utility model provides a medical ball-type sponge eye brush which is characterized in that, includes support handle 1, the one end of support handle is equipped with adsorption part 2, the other end of support handle is equipped with connecting portion 4, adsorption part is connected with hemisphere portion 3.
Further, the hemispherical part and the adsorption part form an adsorption head, and the adsorption head is a three-dimensional porous spherical polyvinyl acetal adsorption head.
Further, the sponge of the adsorption head has a liquid absorption rate of 700%, a porosity of 90%, a pore diameter of 0.5mm, an acetalization degree of 70% and an elastic modulus of 17Kpa.
Further, the radius of the sphere of the hemispherical portion is 3.5mm, and the radius of the horizontal section of the adsorbing portion is 3.5mm.
Further, the support handle is a plastic support handle.
The preparation process of the medical spherical sponge eye brush comprises the following steps:
s1, adding a pore-forming agent, a cross-linking agent and a catalyst into a polyvinyl alcohol aqueous solution to compound into foaming liquid;
s2, injecting foaming liquid into the die cavity and inserting a plastic handle;
s3, preserving heat of the fixed die for 15 hours at the temperature of 60 ℃ and shaping;
s4, demolding, cleaning and drying to obtain the spherical medical sponge eye brush;
s5, packaging the obtained eye brush, and then sterilizing by irradiation.
Further, the foaming liquid in the step S1 comprises the following raw materials in parts by weight: polyvinyl alcohol: 13 parts; 2.9 parts of pore-forming agent; crosslinking agent: 7 parts of 36-38% aldehyde solution; catalyst: 12 parts of 49% acid solution.
Further, the polymerization degree of the polyvinyl alcohol in the step S1 is 1800, and the alcoholysis degree is 88%.
Further, the solution concentration of the aqueous polyvinyl alcohol solution in step S1 is 12%.
Further, in step S1, the pore-forming agent is wheat starch.
Further, in step S1, the crosslinking agent is formaldehyde.
Further, in step S1, the catalyst is sulfuric acid.
Further, in the spherical mold cavity in the step S2, the bottom is a cavity formed by a hemisphere and a cylinder, the diameter of the hemisphere is 7mm, the diameter of the cross section of the cylinder is the same as that of the sphere, and the height is 7mm.
Example 2
The utility model provides a medical ball-type sponge eye brush which is characterized in that, includes support handle 1, the one end of support handle is equipped with adsorption part 2, the other end of support handle is equipped with connecting portion 4, adsorption part is connected with hemisphere portion 3.
Further, the hemispherical part and the adsorption part form an adsorption head, and the adsorption head is a three-dimensional porous spherical polyvinyl acetal adsorption head.
Further, the sponge of the adsorption head has a liquid absorption of 850%, a porosity of 90%, a pore diameter of 0.3mm, an acetalization degree of 65% and an elastic modulus of 18Kpa.
Further, the radius of the sphere of the hemispherical portion is 3mm, and the radius of the horizontal section of the adsorption portion is 3mm.
Further, the support handle is a plastic support handle.
The preparation process of the medical spherical sponge eye brush comprises the following steps:
s1, adding a pore-forming agent, a cross-linking agent and a catalyst into a polyvinyl alcohol aqueous solution to compound into foaming liquid;
s2, injecting foaming liquid into the die cavity and inserting a plastic handle;
s3, preserving heat of the fixed die for 13 hours at the temperature of 60 ℃ and shaping;
s4, demolding, cleaning and drying to obtain the spherical medical sponge eye brush;
s5, packaging the obtained eye brush, and then sterilizing by irradiation.
Further, the foaming liquid in the step S1 comprises the following raw materials in parts by weight: polyvinyl alcohol: 14 parts; 3 parts of pore-forming agent; crosslinking agent: 7.4 parts of 36-38% aldehyde solution; catalyst: 13 parts of 49% acid solution.
Further, in the step S1, the polymerization degree of the polyvinyl alcohol is 1700, and the alcoholysis degree is 78%.
Further, the solution concentration of the aqueous polyvinyl alcohol solution in step S1 is 12%.
Further, in step S1, the pore-forming agent is corn starch.
Further, in step S1, the crosslinking agent is acetaldehyde.
Further, in step S1, the catalyst is hydrochloric acid.
Further, in the spherical mold cavity in the step S2, the bottom is a cavity formed by a hemisphere and a cylinder, the diameter of the hemisphere is 6mm, the diameter of the cross section of the cylinder is the same as that of the sphere, and the height is 6mm.
Example 3
The utility model provides a medical ball-type sponge eye brush which is characterized in that, includes support handle 1, the one end of support handle is equipped with adsorption part 2, the other end of support handle is equipped with connecting portion 4, adsorption part is connected with hemisphere portion 3.
Further, the hemispherical part and the adsorption part form an adsorption head, and the adsorption head is a three-dimensional porous spherical polyvinyl acetal adsorption head.
Further, the sponge of the adsorption head has a liquid absorption of 500%, a porosity of 80%, a pore diameter of 1mm, an acetalization degree of 50% and an elastic modulus of 8Kpa.
Further, the radius of the sphere of the hemispherical portion is 2.5mm, and the radius of the horizontal section of the adsorbing portion is 2.5mm.
Further, the support handle is a plastic support handle.
The preparation process of the medical spherical sponge eye brush comprises the following steps:
s1, adding a pore-forming agent, a cross-linking agent and a catalyst into a polyvinyl alcohol aqueous solution to compound into foaming liquid;
s2, injecting foaming liquid into the die cavity and inserting a plastic handle;
s3, preserving heat of the fixed die for 10 hours at the temperature of 60 ℃ and shaping;
s4, demolding, cleaning and drying to obtain the spherical medical sponge eye brush;
s5, packaging the obtained eye brush, and then sterilizing by irradiation.
Further, the foaming liquid in the step S1 comprises the following raw materials in parts by weight: polyvinyl alcohol: 8 parts; 2.8 parts of pore-forming agent; crosslinking agent: 6 parts of 36-38% aldehyde solution; catalyst: 10 parts of 49% acid solution.
Further, in the step S1, the polymerization degree of the polyvinyl alcohol is 1500, and the alcoholysis degree is 70%.
Further, the solution concentration of the aqueous solution of polyvinyl alcohol in step S1 is 10%.
Further, in step S1, the pore-forming agent is potato starch.
Further, in step S1, the crosslinking agent is butyraldehyde.
Further, in step S1, the catalyst is nitric acid.
Further, in the spherical mold cavity in the step S2, the bottom is a cavity formed by a hemisphere and a cylinder, the diameter of the hemisphere is 5mm, the diameter of the cross section of the cylinder is the same as that of the sphere, and the height is 5mm.
Example 4
The utility model provides a medical ball-type sponge eye brush which is characterized in that, includes support handle 1, the one end of support handle is equipped with adsorption part 2, the other end of support handle is equipped with connecting portion 4, adsorption part is connected with hemisphere portion 3.
Further, the hemispherical part and the adsorption part form an adsorption head, and the adsorption head is a three-dimensional porous spherical polyvinyl acetal adsorption head.
Further, the sponge of the adsorption head has a liquid absorption rate of 1000%, a porosity of 95%, a pore diameter of 0.1mm, an acetalization degree of 85% and an elastic modulus of 25Kpa.
Further, the radius of the sphere of the hemispherical portion is 5mm, and the radius of the horizontal section of the adsorption portion is 5mm.
Further, the support handle is a plastic support handle.
The preparation process of the medical spherical sponge eye brush comprises the following steps:
s1, adding a pore-forming agent, a cross-linking agent and a catalyst into a polyvinyl alcohol aqueous solution to compound into foaming liquid;
s2, injecting foaming liquid into the die cavity and inserting a plastic handle;
s3, preserving heat of the fixed die for 20 hours at the temperature of 60 ℃ and shaping;
s4, demolding, cleaning and drying to obtain the spherical medical sponge eye brush;
s5, packaging the obtained eye brush, and then sterilizing by irradiation.
Further, the foaming liquid in the step S1 comprises the following raw materials in parts by weight: polyvinyl alcohol: 16 parts; 3.2 parts of pore-forming agent; crosslinking agent: 8 parts of 36-38% aldehyde solution; catalyst: 15 parts of 49% acid solution.
Further, the polymerization degree of the polyvinyl alcohol in the step S1 is 2000, and the alcoholysis degree is 99%.
Further, the solution concentration of the aqueous polyvinyl alcohol solution in step S1 is 15%.
Furthermore, in the step S1, the pore-forming agent is sweet potato starch.
Further, in step S1, the crosslinking agent is formaldehyde.
Further, in step S1, the catalyst is phosphoric acid.
Further, in the spherical mold cavity in the step S2, the bottom is a cavity formed by a hemisphere and a cylinder, the diameter of the hemisphere is 10mm, the diameter of the cross section of the cylinder is the same as that of the sphere, and the height is 10mm.
The invention provides a medical spherical sponge eye brush and a preparation method thereof, wherein a sponge head is formed by a polyvinyl acetal hemispherical part and an adsorption part, and the polyvinyl acetal sponge has high liquid absorption capacity, can absorb water with the weight of up to 10 times, is soft and comfortable after absorbing liquid, and greatly reduces the risk of mechanical injury; the sponge head has regular appearance and good compliance, and the boss type connecting part is matched with electric equipment to realize the high-speed rotating and cleaning functions. The invention can not only largely absorb exudates or cleaning liquid in the ophthalmic operation process, but also be matched with electric equipment to realize high-speed rotation and effectively remove eye foreign matters, and simultaneously reduce the risk of mechanical damage to eye tissues.
The medical spherical sponge eye brush sponge head is formed at one end of the plastic handle in the spherical mold cavity by foaming and molding, and has simple production process and low loss.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art. It should be noted that technical features not described in detail in the present invention may be implemented by any prior art.
Claims (1)
1. The medical spherical sponge eye brush is characterized by comprising a support handle, wherein one end of the support handle is provided with an adsorption part, the other end of the support handle is provided with a connecting part, and the adsorption part is connected with a hemispherical part;
the hemispherical part and the adsorption part form an adsorption head, and the adsorption head is a three-dimensional porous spherical polyvinyl acetal adsorption head;
the sponge of the adsorption head has a liquid absorption rate of 500-1000%, a porosity of 80-95%, a pore diameter of 0.1-1mm, an acetalization degree of 50-85% and an elastic modulus of 8-25Kpa;
the radius of the sphere of the hemispherical part is 2.5-5mm, and the radius of the horizontal section of the adsorption part is 2.5-5mm;
the preparation process of the medical spherical sponge eye brush comprises the following steps:
s1, adding a pore-forming agent, a cross-linking agent and a catalyst into a polyvinyl alcohol aqueous solution to compound into foaming liquid;
s2, injecting foaming liquid into the spherical mold cavity and inserting a plastic handle;
s3, fixing the spherical mold cavity and the plastic handle after the foaming liquid is injected, and then preserving heat for 10-20 hours at the temperature of 60 ℃ for shaping;
s4, demolding, cleaning and drying to obtain the spherical medical sponge eye brush;
s5, packaging the obtained eye brush, and then sterilizing by irradiation;
the foaming liquid in the step S1 comprises the following raw materials in parts by weight: polyvinyl alcohol: 8-16 parts; 2.8-3.2 parts of pore-forming agent; crosslinking agent: 6-8 parts of 36-38% aldehyde solution; catalyst: 10-15 parts of 49% acid solution;
the concentration of the polyvinyl alcohol aqueous solution in the step S1 is 10% -15%;
the pore-forming agent in the step S1 is at least one of wheat starch, corn starch, potato starch and sweet potato starch;
in the step S1, the cross-linking agent is at least one of formaldehyde, acetaldehyde and butyraldehyde;
the catalyst in the step S1 is at least one of sulfuric acid, hydrochloric acid, nitric acid and phosphoric acid;
the spherical die cavity in the step S2 is a cavity with the bottom consisting of a hemisphere and a cylinder, the diameter of the hemisphere is 5-10mm, the diameter of the cross section of the cylinder is the same as that of the sphere, and the height of the cylinder is 5-10mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699336.XA CN108836623B (en) | 2018-06-29 | 2018-06-29 | Medical spherical sponge eye brush and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699336.XA CN108836623B (en) | 2018-06-29 | 2018-06-29 | Medical spherical sponge eye brush and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108836623A CN108836623A (en) | 2018-11-20 |
| CN108836623B true CN108836623B (en) | 2024-03-19 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265577A (en) * | 1997-06-16 | 2000-09-06 | 普罗克特和甘保尔公司 | Feminine hygiene system and kit using absorbent interlabial device |
| FR2830432A1 (en) * | 2001-10-05 | 2003-04-11 | Serge Schlee | Nasal passage cleaning implement has two half shells enclosing rod carrying cleaning bulbs on each end |
| KR200333516Y1 (en) * | 2003-08-29 | 2003-11-15 | 양근호 | Cleaning pad for eyes |
| CN101507826A (en) * | 2009-03-24 | 2009-08-19 | 中国科学院长春应用化学研究所 | Preparation method of medical quick imbibition foam material |
| CN102020816A (en) * | 2010-11-16 | 2011-04-20 | 谭明宁 | Polyvinyl formal sponge material with uniform abscesses and rapid imbibition and preparation method thereof |
| CN102078639A (en) * | 2009-11-26 | 2011-06-01 | 许高琴 | Medicine carrying method of medical sponge |
| CN202637691U (en) * | 2012-05-10 | 2013-01-02 | 苏州益思达医用耗材有限公司 | Disposable nano-silver external disinfection bar for women |
| CN104837443A (en) * | 2012-07-24 | 2015-08-12 | 布莱菲克斯有限责任公司 | Device for treating an ocular disorder |
| CN204766156U (en) * | 2015-05-29 | 2015-11-18 | 嵊州领航信息科技有限公司 | Multiple tooth cotton brush |
| WO2015175250A1 (en) * | 2014-05-12 | 2015-11-19 | Cxl Ophthalmics, Llc | Ophthalmic treatment solution delivery devices and delivery augmentation methods |
| CN105561375A (en) * | 2016-01-05 | 2016-05-11 | 山东省药学科学院 | Dopamine crosslinked gelatin liquid absorbing hemostatic sponge and preparation method thereof |
| CN105816909A (en) * | 2016-05-10 | 2016-08-03 | 北京科技大学 | Method for preparing high-elasticity high-absorbency hemostatic and bacteriostatic expansive sponge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2831840B1 (en) * | 2001-11-02 | 2005-01-21 | Nicolas Trevillot | STICK CONTAINING A PRODUCT THAT THE USER CAN BRING IN CONTACT WITH AN ABSORBENT MATERIAL |
-
2018
- 2018-06-29 CN CN201810699336.XA patent/CN108836623B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265577A (en) * | 1997-06-16 | 2000-09-06 | 普罗克特和甘保尔公司 | Feminine hygiene system and kit using absorbent interlabial device |
| FR2830432A1 (en) * | 2001-10-05 | 2003-04-11 | Serge Schlee | Nasal passage cleaning implement has two half shells enclosing rod carrying cleaning bulbs on each end |
| KR200333516Y1 (en) * | 2003-08-29 | 2003-11-15 | 양근호 | Cleaning pad for eyes |
| CN101507826A (en) * | 2009-03-24 | 2009-08-19 | 中国科学院长春应用化学研究所 | Preparation method of medical quick imbibition foam material |
| CN102078639A (en) * | 2009-11-26 | 2011-06-01 | 许高琴 | Medicine carrying method of medical sponge |
| CN102020816A (en) * | 2010-11-16 | 2011-04-20 | 谭明宁 | Polyvinyl formal sponge material with uniform abscesses and rapid imbibition and preparation method thereof |
| CN202637691U (en) * | 2012-05-10 | 2013-01-02 | 苏州益思达医用耗材有限公司 | Disposable nano-silver external disinfection bar for women |
| CN104837443A (en) * | 2012-07-24 | 2015-08-12 | 布莱菲克斯有限责任公司 | Device for treating an ocular disorder |
| WO2015175250A1 (en) * | 2014-05-12 | 2015-11-19 | Cxl Ophthalmics, Llc | Ophthalmic treatment solution delivery devices and delivery augmentation methods |
| CN204766156U (en) * | 2015-05-29 | 2015-11-18 | 嵊州领航信息科技有限公司 | Multiple tooth cotton brush |
| CN105561375A (en) * | 2016-01-05 | 2016-05-11 | 山东省药学科学院 | Dopamine crosslinked gelatin liquid absorbing hemostatic sponge and preparation method thereof |
| CN105816909A (en) * | 2016-05-10 | 2016-08-03 | 北京科技大学 | Method for preparing high-elasticity high-absorbency hemostatic and bacteriostatic expansive sponge |
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