CN106344960B - The hemostasis gel prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres - Google Patents

The hemostasis gel prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres Download PDF

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CN106344960B
CN106344960B CN201610834678.9A CN201610834678A CN106344960B CN 106344960 B CN106344960 B CN 106344960B CN 201610834678 A CN201610834678 A CN 201610834678A CN 106344960 B CN106344960 B CN 106344960B
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collagenous fibres
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stirred
acid
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CN106344960A (en
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姜谱
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Anhui Special Biological Technology Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/04Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
    • A61L24/10Polypeptides; Proteins
    • A61L24/102Collagen
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/001Use of materials characterised by their function or physical properties
    • A61L24/0015Medicaments; Biocides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/001Use of materials characterised by their function or physical properties
    • A61L24/0031Hydrogels or hydrocolloids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/001Use of materials characterised by their function or physical properties
    • A61L24/0042Materials resorbable by the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/04Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
    • A61L24/046Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/04Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
    • A61L24/06Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L24/00Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/04Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
    • A61L24/08Polysaccharides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/418Agents promoting blood coagulation, blood-clotting agents, embolising agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2400/00Materials characterised by their function or physical properties
    • A61L2400/04Materials for stopping bleeding

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
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Abstract

The invention discloses a kind of hemostasis gels prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres, it is related to hemostasis gel technical field, include the following steps: that (1) abortive calfskin pre-processes, (2) preparation of collagenous fibres Extraction solvent, (3) preparation of collagenous fibres solution, (4) preparation of modified collagen fiber solution, the preparation of (5) hemostasis gel.Hemostasis gel of the present invention can directly overlie bleed site, play haemostatic effect, and stop blooding rapidly, promote the reparation of the surface of a wound while effectively reducing amount of bleeding;There is excellent biocompatibility and biological degradability simultaneously, it is safe to use, using rear without any side effects.

Description

The hemostasis gel prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres
Technical field:
The present invention relates to hemostasis gel technical fields, and in particular to a kind of to utilize microcrystalline cellulose graft modification abortive calfskin glue The hemostasis gel of fibrinogen preparation.
Background technique:
Often the bleeding profusely along with the surface of a wound in surgery and trauma operation, so that patient be made to face great life Danger, therefore prepare the research hotspot that quickly and effectively hemostatic material is used as always medical field.Traditional hemostatic material exists The shortcomings that not portable and disinfection saves, and stop blooding and almost lean on mechanism, haemostatic effect is bad.In recent years, people develop Biological absorbable hemostatic material, wherein Animal Skin Collagen sill is as a kind of good medical material of biological property, with human body It is biodegradable and have no toxic side effect with good histocompatbility, while adherency, proliferation and the wound of cell can be promoted It is compound;And by its distinctive microcellular structure and good adhesiveness, promotes the growth of biotic factor to spread, induce and promote Into fibroblastic growth, to promote the healing of wound.
Currently, it is sour enzyme combination extraction method that universal Animal Skin Collagen, which extracts preparation method, main includes the pre- place of raw material Reason, degreasing enzymolysis, digestion, are saltoutd, are centrifuged and purified, but there is gained collagen purity and low yield, at high cost etc. Problem, and collagen can be made to reduce or lose biomechanical property because dealing with improperly in extraction process, stop to influence it Blood effect.For this problem, our company starts with from the extracting method of collagen, and combines the modification to collagen is extracted And the addition of auxiliary agent prepares hemostasis gel material, improves haemostatic effect, biocompatibility, biology drop on a low-cost basis Solution property and safety in utilization.
Summary of the invention:
Technical problem to be solved by the present invention lies in providing, one kind is easy to use, haemostatic effect is good and has superior bio The hemostasis gel of compatibility and biological degradability prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
The hemostasis gel prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres, is included the following steps:
(1) abortive calfskin pre-processes: purifying abortive calfskin as raw material can trace to the source, is wrapped up after being fully deployed with preservative film It is good, it is placed in 5~8h of freezing in -5~0 DEG C of environment, then with 10-15 DEG C of temperature, the sodium bicarbonate and tripolyphosphate of mass fraction 5% Sodium mixed aqueous solution impregnates 10~15min, then uses sponge brush brushing surface 2~3 times under deionized water shower;
(2) preparation of collagenous fibres Extraction solvent: according to the ratio of 1.2~1.5:1 of molar ratio by Cyclopropyl Bromide and 2- pyrrole Pyrrolidone is sufficiently mixed, prior to being ultrasonically treated 15~30min under supersonic frequency 40kHz, power 50W, then at microwave frequency 3~5min of microwave treatment under 2450MHz, power 700W is then heated to 30~60min of reflux state insulated and stirred, to be mixed 5-10 DEG C of deionized water of the weight such as addition, is sufficiently stirred rear stratification after solution naturally cools to 50-55 DEG C, phase of fetching water, Up to Extraction solvent;
(3) preparation of collagenous fibres solution: the abortive calfskin after above-mentioned scrub is sent into freeze drier, dry to aqueous Amount using onal machine is ground into the particle that granularity is 2-3mm after being 10-15%, adds in above-mentioned made Extraction solvent, sufficiently 10~15min is stood after dispersion, is transferred in ball mill after standing, is milled to fineness less than 50 μm, is then added pH=3's Disodium hydrogen phosphate-citrate buffer solution utilizes the Surface Treatment with Plasma machine of working frequency 40Hz, power 600W after being sufficiently mixed 10~15s is handled to gained mixture, after treatment is transferred to 3~5h of standing in 0~5 DEG C of environment, polyacrylic acid is then added And polyethylene glycol oxide, and it is heated to reflux state 15~30min of insulated and stirred, 270 meshes are finally crossed, gained filtrate is collagen Fiber solution;
(4) microcrystalline cellulose, poly- second the preparation of modified collagen fiber solution: are added into above-mentioned made collagenous fibres solution Glycol 6000 and L-Aspartic acid are sufficiently mixed, in 35~40 DEG C of 1~2h of sealing and standing after being uniformly dispersed then in Microwave Frequency 2~3min of microwave treatment under rate 2450MHz, power 700W, is sufficiently mixed again, and utilizes working frequency 40Hz, power 600W Surface Treatment with Plasma machine handle 10~15s, gained mixture is under ice-water bath with the cooling drop of the speed of 10~15 DEG C/min Temperature, 10~15min of insulated and stirred is after temperature is down to 0~5 DEG C to get modified collagen fiber solution;
(5) preparation of hemostasis gel: into above-mentioned made modified collagen fiber solution be added polyglycolic acid, Polycarbophil, Vitamin K and aminocaproic acid are distributed into mold after being sufficiently mixed uniformly, and utilize gamma-rays sterilization, are finally packaged The cryo-conservation under the conditions of 0~5 DEG C afterwards.
The dosage mass ratio of sodium bicarbonate and sodium tripolyphosphate is 2~3:1 in the step (1).
Abortive calfskin, Extraction solvent, disodium hydrogen phosphate-citrate buffer solution, polyacrylic acid and polyoxygenated in the step (3) 10~15:40 of dosage mass ratio~50:0.5~1:0.5~1:0.5~1 of ethylene.
Polyacrylic acid passes through chemical modification, method of modifying are as follows: by polyacrylic acid and junket ammonia using preceding in the step (3) Acid be added double weight part ethyl alcohol in, reflux state insulated and stirred 10min is heated to after being uniformly dispersed, add resveratrol and Disodium ethylene diamine tetraacetate continues at insulated and stirred 30min under reflux state, after gained mixture naturally cools to 35-40 DEG C It is transferred in 0-5 DEG C of environment immediately and stands 8h, be then fed into spray dryer, obtained solid is ground after drying is made powder.
The polyacrylic acid, tyrosine, resveratrol and disodium ethylene diamine tetraacetate dosage mass ratio be 10~15:1 ~2:3~6:0.5~1.
The dosage matter of collagenous fibres solution, microcrystalline cellulose, Macrogol 6000 and L-Aspartic acid in the step (4) Measure ratio 25~30:3~6:1~2:0.5~1.
The use of modified collagen fiber solution, polyglycolic acid, Polycarbophil, vitamin K and aminocaproic acid in the step (5) Measure 25~30:2 of mass ratio~3:1~2:0.5~1:0.5~1.
The beneficial effects of the present invention are: the present invention purifies abortive calfskin as raw material can trace to the source, it is molten that extraction prepares collagenous fibres Liquid, and the extracted collagenous fibres of microcrystalline cellulose graft modification are utilized, and be aided with a variety of auxiliary agents and hemostasis gel is made, it should be only Blood clotting glue can directly overlie bleed site, play haemostatic effect, and stop blooding rapidly, promote wound while effectively reducing amount of bleeding The reparation in face;There is excellent biocompatibility and biological degradability simultaneously, it is safe to use, without the secondary work of any poison after use With.
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is further explained.
Embodiment 1
(1) abortive calfskin pre-processes: purifying abortive calfskin as raw material can trace to the source, is wrapped up after being fully deployed with preservative film It is good, it is placed in -5~0 DEG C of environment and freezes 8h, then with 10-15 DEG C of temperature, the sodium bicarbonate and sodium tripolyphosphate of mass fraction 5% (sodium bicarbonate, sodium tripolyphosphate dosage mass ratio be 3:1) mixed aqueous solution impregnate 15min, then under deionized water shower With sponge brush brushing surface 2 times.
(2) preparation of collagenous fibres Extraction solvent: according to the ratio of molar ratio 1.2:1 by Cyclopropyl Bromide and 2-Pyrrolidone It is sufficiently mixed, prior to being ultrasonically treated 30min under supersonic frequency 40kHz, power 50W, then at microwave frequency 2450MHz, power Microwave treatment 5min under 700W, is then heated to reflux state insulated and stirred 60min, and solution to be mixed naturally cools to 50-55 5-10 DEG C of deionized water of the weight such as addition after DEG C, is sufficiently stirred rear stratification, water intaking is mutually to get Extraction solvent.
(3) preparation of collagenous fibres solution: 15 parts of abortive calfskins after above-mentioned scrub are sent into freeze drier, and drying is extremely Water content using onal machine is ground into the particle that granularity is 2-3mm after being 10-15%, adds above-mentioned made 50 parts of Extraction solvents In, 15min is stood after fully dispersed, is transferred in ball mill after standing, is milled to fineness less than 50 μm, is then added 0.5 Disodium hydrogen phosphate-citrate buffer solution of part pH=3, utilizes the plasma of working frequency 40Hz, power 600W after being sufficiently mixed Surface treating machine handles 15s to gained mixture, and after treatment is transferred in 0~5 DEG C of environment and stands 5h, is then added 1 part and gathers Acrylic acid and 0.5 part of polyethylene glycol oxide, and it is heated to reflux state insulated and stirred 30min, finally cross 270 meshes, gained filtrate As collagenous fibres solution.
(4) 3 parts of microcrystalline celluloses the preparation of modified collagen fiber solution: are added into above-mentioned made 25 parts of collagenous fibres solution Element, 1 part of Macrogol 6000 and 0.5 part of L-Aspartic acid are sufficiently mixed in 35~40 DEG C of sealing and standing 2h after being uniformly dispersed, Then the microwave treatment 3min under microwave frequency 2450MHz, power 700W, is sufficiently mixed again, and utilization working frequency 40Hz, The Surface Treatment with Plasma machine of power 600W handles 15s, and gained mixture is cold with the speed of 10~15 DEG C/min under ice-water bath But cool down, the insulated and stirred 15min after temperature is down to 0~5 DEG C.
(5) 2 parts of polyglycolic acids, 2 parts the preparation of hemostasis gel: are added into above-mentioned made 25 parts of modified collagen fiber solutions Polycarbophil, 0.5 part of vitamin K and 0.5 part of aminocaproic acid are distributed into mold after being sufficiently mixed uniformly, and utilize gamma-rays Sterilization, after being finally packaged under the conditions of 0~5 DEG C cryo-conservation.
The modification of polyacrylic acid: 15 parts of polyacrylic acid and 1 part of tyrosine are added in double weight part ethyl alcohol, are uniformly dispersed After be heated to reflux state insulated and stirred 10min, add 5 parts of resveratrols and 0.5 part of disodium ethylene diamine tetraacetate, continue at Insulated and stirred 30min under reflux state, gained mixture are transferred in 0-5 DEG C of environment immediately after naturally cooling to 35-40 DEG C and stand 8h is then fed into spray dryer, and obtained solid is ground after drying is made powder.
Embodiment 2
(1) abortive calfskin pre-processes: purifying abortive calfskin as raw material can trace to the source, is wrapped up after being fully deployed with preservative film It is good, it is placed in -5~0 DEG C of environment and freezes 8h, then with 10-15 DEG C of temperature, the sodium bicarbonate and sodium tripolyphosphate of mass fraction 5% (sodium bicarbonate, sodium tripolyphosphate dosage mass ratio be 3:1) mixed aqueous solution impregnate 15min, then under deionized water shower With sponge brush brushing surface 2 times.
(2) preparation of collagenous fibres Extraction solvent: according to the ratio of molar ratio 1.2:1 by Cyclopropyl Bromide and 2-Pyrrolidone It is sufficiently mixed, prior to being ultrasonically treated 30min under supersonic frequency 40kHz, power 50W, then at microwave frequency 2450MHz, power Microwave treatment 5min under 700W, is then heated to reflux state insulated and stirred 60min, and solution to be mixed naturally cools to 50-55 5-10 DEG C of deionized water of the weight such as addition after DEG C, is sufficiently stirred rear stratification, water intaking is mutually to get Extraction solvent.
(3) preparation of collagenous fibres solution: 15 parts of abortive calfskins after above-mentioned scrub are sent into freeze drier, and drying is extremely Water content using onal machine is ground into the particle that granularity is 2-3mm after being 10-15%, adds above-mentioned made 45 parts of Extraction solvents In, 15min is stood after fully dispersed, is transferred in ball mill after standing, is milled to fineness less than 50 μm, is then added 0.5 Disodium hydrogen phosphate-citrate buffer solution of part pH=3, utilizes the plasma of working frequency 40Hz, power 600W after being sufficiently mixed Surface treating machine handles 15s to gained mixture, and after treatment is transferred in 0~5 DEG C of environment and stands 5h, is then added 0.5 part Polyacrylic acid and 0.5 part of polyethylene glycol oxide, and it is heated to reflux state insulated and stirred 30min, finally cross 270 meshes, gained filter Liquid is collagenous fibres solution.
(4) 3 parts of microcrystalline celluloses the preparation of modified collagen fiber solution: are added into above-mentioned made 30 parts of collagenous fibres solution Element, 1.5 parts of Macrogol 6000s and 0.5 part of L-Aspartic acid, it is sufficiently mixed in 35~40 DEG C of sealing and standing 2h after being uniformly dispersed It closes, then the microwave treatment 3min under microwave frequency 2450MHz, power 700W, is sufficiently mixed again, and utilizes working frequency The Surface Treatment with Plasma machine processing 15s of 40Hz, power 600W, gained mixture is under ice-water bath with the speed of 10~15 DEG C/min Degree cools, the insulated and stirred 15min after temperature is down to 0~5 DEG C.
(5) 2 parts of polyglycolic acids, 1 part the preparation of hemostasis gel: are added into above-mentioned made 25 parts of modified collagen fiber solutions Polycarbophil, 0.5 part of vitamin K and 0.5 part of aminocaproic acid are distributed into mold after being sufficiently mixed uniformly, and utilize gamma-rays Sterilization, after being finally packaged under the conditions of 0~5 DEG C cryo-conservation.
The modification of polyacrylic acid: 15 parts of polyacrylic acid and 2 parts of tyrosine are added in double weight part ethyl alcohol, are uniformly dispersed After be heated to reflux state insulated and stirred 10min, add 5 parts of resveratrols and 0.5 part of disodium ethylene diamine tetraacetate, continue at Insulated and stirred 30min under reflux state, gained mixture are transferred in 0-5 DEG C of environment immediately after naturally cooling to 35-40 DEG C and stand 8h is then fed into spray dryer, and obtained solid is ground after drying is made powder.
Performance measurement is carried out to hemostasis gel prepared by Examples 1 and 2, as a result as follows:
Appearance: gel, surface is smooth, the impurity being visible by naked eyes;
Moisture content :≤80% (wt);
Gel strength: 100~500g/cm2
Content of beary metal :≤10 μ g/g (m/m);
Liposome :≤1% (m/m);
Ash content :≤2% (m/m);
PH value: >=4.0;
Biological degradability: it all degrades in internal January;
Antibacterial/bacteriostasis property: equal to the bacteriostasis rate of Escherichia coli, gold goal bacterium, Candida albicans and Pseudomonas aeruginosa >=50%;
Hemolysis rate :≤5%;
Cytotoxicity: cell-cytotoxic reaction is not more than 1 grade;
Sterility test: sterile;
Sensitization test (STT): without delayed type hypersensitivity, DTH;
Intradermal reaction test: primary stimulus index PII < 0.4;
Exogenous DNA content: Residual exogenous DNA amount answers≤10ng/ml (m/v)
Heat source: without heat source;
Acute systemic toxicity: without Acute systemic toxicity;
Genetoxic: hereditary-less toxicity;
Gel time :≤30s;
Bleeding stopping period :≤1min.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (1)

1. utilizing the hemostasis gel of microcrystalline cellulose graft modification abortive calfskin collagenous fibres preparation, which is characterized in that including as follows Step:
(1) abortive calfskin pre-processes: abortive calfskin is purified as raw material can trace to the source, and is wrapped after being fully deployed with preservative film, and It is placed in 5~8h of freezing in -5~0 DEG C of environment, then mixed with 10-15 DEG C of temperature, the sodium bicarbonate of mass fraction 5% and sodium tripolyphosphate 10~15min of aqueous solution soaking is closed, is then used sponge brush brushing surface 2~3 times under deionized water shower;
(2) preparation of collagenous fibres Extraction solvent: according to the ratio of 1.2~1.5:1 of molar ratio by Cyclopropyl Bromide and 2- pyrrolidines Ketone is sufficiently mixed, prior under supersonic frequency 40kHz, power 50W be ultrasonically treated 15~30min, then at microwave frequency 2450MHz, 3~5min of microwave treatment under power 700W, is then heated to 30~60min of reflux state insulated and stirred, and solution to be mixed is natural 5-10 DEG C of deionized water of the weight such as addition after being cooled to 50-55 DEG C, is sufficiently stirred rear stratification, water intaking is mutually to get extraction Solvent;
(3) preparation of collagenous fibres solution: the abortive calfskin after above-mentioned scrub is sent into freeze drier, and drying to water content is It is ground into the particle that granularity is 2-3mm using onal machine after 10-15%, is added in above-mentioned made Extraction solvent, it is fully dispersed 10~15min is stood afterwards, is transferred in ball mill after standing, is milled to fineness less than 50 μm, the phosphoric acid of pH=3 is then added Disodium hydrogen-citrate buffer solution utilizes the Surface Treatment with Plasma machine of working frequency 40Hz, power 600W to institute after being sufficiently mixed Mixture 10~15s of processing is obtained, after treatment is transferred to 3~5h of standing in 0~5 DEG C of environment, and polyacrylic acid is then added and gathers Ethylene oxide, and it is heated to reflux state 15~30min of insulated and stirred, 270 meshes are finally crossed, gained filtrate is collagenous fibres Solution;
(4) microcrystalline cellulose, polyethylene glycol the preparation of modified collagen fiber solution: are added into above-mentioned made collagenous fibres solution 6000 and L-Aspartic acid be sufficiently mixed, in 35~40 DEG C of 1~2h of sealing and standing after being uniformly dispersed then in microwave frequency 2~3min of microwave treatment under 2450MHz, power 700W, is sufficiently mixed again, and utilization working frequency 40Hz, power 600W Surface Treatment with Plasma machine handles 10~15s, and gained mixture is cooled under ice-water bath with the speed of 10~15 DEG C/min, 10~15min of insulated and stirred is after temperature is down to 0~5 DEG C to get modified collagen fiber solution;
(5) polyglycolic acid, Polycarbophil, dimension life the preparation of hemostasis gel: are added into above-mentioned made modified collagen fiber solution Plain K and aminocaproic acid are distributed into mold after being sufficiently mixed uniformly, and utilize gamma-rays sterilization, in 0 after being finally packaged Cryo-conservation under the conditions of~5 DEG C;
The dosage mass ratio of sodium bicarbonate and sodium tripolyphosphate is 2~3:1 in the step (1);
Abortive calfskin, Extraction solvent, disodium hydrogen phosphate-citrate buffer solution, polyacrylic acid and polyethylene glycol oxide in the step (3) 10~15:40 of dosage mass ratio~50:0.5~1:0.5~1:0.5~1;
Polyacrylic acid passes through chemical modification, method of modifying are as follows: add polyacrylic acid and tyrosine using preceding in the step (3) Enter in double weight part ethyl alcohol, reflux state insulated and stirred 10min is heated to after being uniformly dispersed, adds resveratrol and second two Amine tetraacethyl disodium, continues at insulated and stirred 30min under reflux state, gained mixture naturally cool to 35-40 DEG C after immediately It is transferred in 0-5 DEG C of environment and stands 8h, be then fed into spray dryer, obtained solid is ground after drying is made powder;It is described Polyacrylic acid, tyrosine, resveratrol and disodium ethylene diamine tetraacetate dosage mass ratio be 10~15:1~2:3~6:0.5 ~1;
The dosage mass ratio of collagenous fibres solution, microcrystalline cellulose, Macrogol 6000 and L-Aspartic acid in the step (4) 25~30:3~6:1~2:0.5~1;
The dosage matter of modified collagen fiber solution, polyglycolic acid, Polycarbophil, vitamin K and aminocaproic acid in the step (5) Measure ratio 25~30:2~3:1~2:0.5~1:0.5~1.
CN201610834678.9A 2016-09-20 2016-09-20 The hemostasis gel prepared using microcrystalline cellulose graft modification abortive calfskin collagenous fibres Expired - Fee Related CN106344960B (en)

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EP2809365A1 (en) * 2012-02-01 2014-12-10 Haemostatix Limited Haemostatic wound dressing
CN104661708A (en) * 2012-09-19 2015-05-27 尤法玛私人有限公司 Viscous haemostatic compostions and method of treatment

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Publication number Priority date Publication date Assignee Title
EP1140235A1 (en) * 1998-12-23 2001-10-10 Aventis Behring GmbH Fibrin-based glue granulate and corresponding production method
CN1502375A (en) * 2002-11-26 2004-06-09 hemostatic wound dressing containing aldehyde-modified polysaccharide and hemostatic agents
EP2809365A1 (en) * 2012-02-01 2014-12-10 Haemostatix Limited Haemostatic wound dressing
CN104661708A (en) * 2012-09-19 2015-05-27 尤法玛私人有限公司 Viscous haemostatic compostions and method of treatment

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