WO2014142132A1 - 接着性骨補填剤及び接着性骨補填剤キット - Google Patents
接着性骨補填剤及び接着性骨補填剤キット Download PDFInfo
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- WO2014142132A1 WO2014142132A1 PCT/JP2014/056368 JP2014056368W WO2014142132A1 WO 2014142132 A1 WO2014142132 A1 WO 2014142132A1 JP 2014056368 W JP2014056368 W JP 2014056368W WO 2014142132 A1 WO2014142132 A1 WO 2014142132A1
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- adhesive bone
- filling material
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- bone
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- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/12—Phosphorus-containing materials, e.g. apatite
-
- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
- A61L24/0031—Hydrogels or hydrocolloids
-
- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
- A61L24/0042—Materials resorbable by the body
-
- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/0047—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L24/0073—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material with a macromolecular matrix
- A61L24/0084—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material with a macromolecular matrix containing fillers of phosphorus-containing inorganic compounds, e.g. apatite
-
- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/10—Polypeptides; Proteins
- A61L24/104—Gelatin
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- 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
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/10—Polypeptides; Proteins
- A61L24/108—Specific proteins or polypeptides not covered by groups A61L24/102 - A61L24/106
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/26—Mixtures of macromolecular compounds
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- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L27/46—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
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- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/54—Biologically active materials, e.g. therapeutic substances
-
- 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
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
-
- 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
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/02—Materials or treatment for tissue regeneration for reconstruction of bones; weight-bearing implants
Definitions
- the present invention relates to an adhesive bone filler and an adhesive bone filler kit.
- Conventional methods for treating vertebral body compression fractures include spinal fusion, in which the spine is fixed with a metal screw or rod to integrate the bone, and bone replacement is performed by injecting a bone filling agent into the vertebral body for early removal. Vertebroplasty for the purpose of pain has been performed.
- Non-patent Document 1 A spinal surgical instrument using the BKP technique is disclosed (Patent Document 1).
- Vertebroplasty has become the mainstream surgical method because of the low physical burden on patients.
- This vertebroplasty is a minimally invasive surgery, but when bone cement is used as a bone filler, the methyl methacrylate monomer contained in the bone cement leaks out of the vertebral body and causes complications such as pulmonary embolism and spinal cord injury. The case which causes is reported (nonpatent literature 2). Further, bone cement is non-absorbable (Patent Document 2). Further, there is a problem that the surrounding tissue is necrotized by a high polymerization heat.
- Non-patent Document 3 Although bone paste is resorbable, it may take about a week to reach the maximum strength, and there is a problem that the curing time is long and the strength cannot be achieved in a short time (Non-patent Document 3). Furthermore, since most are inorganic components, there is a problem of not having adhesiveness to the cancellous bone inside the vertebral body (Patent Document 3). In addition, the calcium phosphate-based bone filling material has a problem in that it has no adhesiveness to the bone tissue immediately after application, in addition to the risk of leakage of the filling material due to a long hardening time of several hours or more.
- the present inventor uses a bio-polymer (albumin, gelatin) as a liquid component and a solid-liquid two-component bone filling agent having an organic acid crosslinking agent / calcium phosphate as a solid component, so that no monomer is used. And it discovered that the adhesive bone filling agent which adhere
- a solid-liquid two-component bone filling agent comprising a synthetic polymer as a liquid component and an organic acid crosslinking agent / calcium phosphate as a solid component can produce an adhesive bone filling agent that does not use a monomer.
- the present invention has the following configuration.
- An adhesive bone filling material that adheres and hardens to bone tissue, and includes a liquid component comprising a buffer solution containing a water-soluble biocompatible polymer, and a powder component containing calcium phosphate and an organic acid crosslinking agent.
- An adhesive bone filler comprising a mixture.
- the adhesive bone filling material wherein the water-soluble biocompatible polymer is a water-soluble biocompatible biopolymer or a synthetic polymer.
- the adhesive bone filling material according to (2), wherein the biopolymer is albumin or gelatin.
- the adhesive bone filling material according to (3), wherein the albumin is any one or more of serum albumin or recombinant albumin of bovine, pig, horse or human.
- the calcium phosphate is ⁇ -tricalcium phosphate ( ⁇ -TCP), ⁇ ′-tricalcium phosphate ( ⁇ ′-TCP), ⁇ -tricalcium phosphate ( ⁇ -TCP), octacalcium phosphate (OCP) ), Dicalcium phosphate dibasic (DCPD), tetracalcium phosphate monoxide (TeCP), hydroxyapatite (HAp), calcium hydrogen phosphate, or a combination of two or more thereof (1) to (10) The adhesive bone filling material according to any one of the above.
- the organic acid crosslinking agent may be one or a combination of two or more crosslinking agents in which all carboxyl groups of tartaric acid, malic acid, succinic acid, or citric acid are modified with N-hydroxysuccinimide or N-hydroxysulfosuccinimide.
- P / L which is the ratio of the first powder component (P (g)) to the liquid component (L (g)), is such that 1/1 ⁇ P / L ⁇ 3.5 / 1.
- the adhesive bone filling material according to any one of (1) to (16), wherein (18) a first container enclosing a liquid component composed of a buffer solution containing a water-soluble biocompatible polymer; A second container enclosing a powder component containing calcium phosphate and an organic acid crosslinking agent; a third container for producing an adhesive bone filling material by mixing the liquid component and the powder component;
- An adhesive bone filling agent kit comprising: an injection container for injecting an adhesive bone filling material into an adhesive part.
- the adhesive bone filling material of the present invention is an adhesive bone filling material that adheres and hardens to bone tissue, and includes a liquid component comprising a buffer solution containing a water-soluble biocompatible polymer, calcium phosphate, and organic acid crosslinking. Since it includes a mixture with a powder component containing an agent, the adhesiveness to bone tissue is high, the bonding time is short, and the absorbability can be increased. Since the bone adhesiveness is high, leakage of the adhesive bone filling material from the bonded portion to the outside is prevented, and the risk of complications can be eliminated. There is also an advantage that the curing temperature is low. Further, the three-point bending strength can be set to an appropriate strength (1 MPa or more and 50 MPa or less).
- the adhesive bone filling kit of the present invention comprises a first container enclosing a liquid component, a second container enclosing a powder component, the liquid component and the powder component, and mixing the adhesive bone.
- the powder component is a mixed powder of calcium phosphate as the first powder component and the organic acid crosslinking agent as the second powder component, and the adhesive bone filler is the adhesive bone filler described above. Since the composition is an agent, it is possible to perform the adhesion treatment easily and quickly without the need for other instruments / reagents.
- FIG. 1 is a schematic view showing an example of an adhesive bone filling kit according to an embodiment of the present invention.
- an adhesive bone filling kit 11 includes a first container 12 enclosing a liquid component 21, a second container 13 enclosing a powder component 22, A third container 14 for producing an adhesive bone filling material by mixing the liquid component 21 and the powder component 22; and an injection container 15 for injecting the adhesive bone filling material into the bonding portion.
- the liquid component 21 is made of a buffer solution containing a water-soluble biocompatible polymer
- the powder component 22 is a calcium phosphate that is a first powder component and an organic acid bridge that is a second powder component.
- the adhesive bone filler is an adhesive bone filler according to an embodiment of the present invention, which will be described later. ⁇ How to use adhesive bone filling kit> Next, the usage method of the adhesive bone filling material kit which is embodiment of this invention is demonstrated.
- FIGS. 2 and 3 are process diagrams showing an example of a method for using the adhesive bone filling kit according to the embodiment of the present invention.
- the first container 12 is opened, the liquid component 21 is placed in the third container 14, the second container 13 is opened, and the powder component 22 is Place in third container 14.
- the compressed fracture portion of the bone 47 is inflated with a balloon to form a cavity portion 47c in the bone tissue defect portion / compressed fracture portion, and then bonded from the injection container 15 into the cavity portion 47c as shown in FIG. Sexual bone filling material 31 is injected.
- the bone 47 can be bonded and fixed by leaving it for a certain period of time.
- An adhesive bone filler 31 is an adhesive bone filler that mixes the liquid component 21 and the powder component 22 and then injects and applies the bone component to the bone tissue and adheres to the bone tissue. .
- the liquid component 21 is a buffer solution containing a water-soluble biocompatible polymer.
- the water-soluble biocompatible polymer is a water-soluble biocompatible biopolymer or synthetic polymer.
- the biopolymer is preferably albumin or gelatin. Thereby, biocompatibility and absorbability can be imparted to the produced adhesive bone cement.
- the albumin is one or more of serum albumin or genetically modified albumin of bovine, pig, horse or human.
- the albumin can include human serum albumin (HSA).
- HSA human serum albumin
- a phosphate buffer solution containing a biopolymer for example, a 42 w / v% phosphate buffer of human serum albumin (HSA) A solution (pH 8.0) (hereinafter abbreviated as 42 w / v% HSA) can be used.
- the gelatin is one or more gelatins of bovine, pig, fish or human, or genetically modified gelatin.
- fish gelatin is preferred because cod gelatin is liquid at room temperature even at high concentrations.
- the synthetic polymer is preferably a polyether having an amino group at the side chain or terminal or a water-soluble polymer.
- the polyether having an amino group at the side chain or terminal is preferably 3 to 8 branched polyethylene glycol.
- Examples of the polyethylene glycol having 3 to 8 branches include pentaerythritol tetrapolyethylene glycol ether, and examples of the polyethylene glycol having an amino group at the side chain or terminal include tetraamine-terminated polyethylene glycol (four branches) (hereinafter referred to as TAPEG). Abbreviated).
- Examples of the water-soluble polymer include polypeptides, and examples of the polypeptide having an amino group at the side chain or terminal include polylysine.
- the powder component 22 is a mixed powder of calcium phosphate as the first powder component and the organic acid crosslinking agent as the second powder component.
- Calcium phosphate dissolves little by little and can reconstitute low crystalline hydroxyapatite in the body to increase strength.
- Examples of calcium phosphate include ⁇ -tricalcium phosphate (hereinafter abbreviated as ⁇ -TCP ( ⁇ 250 ⁇ m)) having a particle size of 250 ⁇ m or less. The smaller the particle size, the better. Nanoparticles are still preferred.
- the calcium phosphate is ⁇ -tricalcium phosphate ( ⁇ -TCP), ⁇ ′-tricalcium phosphate ( ⁇ ′-TCP), ⁇ -tricalcium phosphate ( ⁇ -TCP), octacalcium phosphate (OCP), dicalcium
- ⁇ -TCP ⁇ -tricalcium phosphate
- ⁇ -TCP ⁇ -tricalcium phosphate
- OCP octacalcium phosphate
- dicalcium A combination of one or more of phosphate dibasic (DCPD), tetracalcium phosphate monoxide (TeCP), hydroxyapatite (HAp), and calcium hydrogen phosphate is preferable.
- DCPD phosphate dibasic
- TeCP tetracalcium phosphate monoxide
- HAp hydroxyapatite
- calcium hydrogen phosphate is preferable.
- These calcium phosphates may be fired or unfired. Thereby, osteoconductivity and osteoinductive ability can be provided
- the calcium phosphate is preferably doped with a metal element in order to impart bone forming ability.
- a metal element for example, one or more of zinc, copper, strontium, silver, and titanium is preferable. Thereby, osteogenesis can be promoted by activation of osteoblasts.
- the calcium phosphate is a particle of 10 to 1000 nanometers. Thereby, the intensity
- the organic acid crosslinking agent is one or a combination of two or more crosslinking agents obtained by modifying all carboxyl groups of tartaric acid, malic acid, citric acid or succinic acid with N-hydroxysuccinimide or N-hydroxysulfosuccinimide. preferable.
- the active ester of the crosslinking agent reacts with the amino group of the water-soluble biocompatible polymer contained in the liquid component and is cured.
- the citric acid crosslinking agent include trisuccinimidyl citrate (hereinafter abbreviated as TSC) in which the carboxyl group of citric acid is modified with N-hydroxysuccinimide.
- examples of the malic acid crosslinking agent include disuccinimidyl malate obtained by modifying two carboxyl groups of malic acid with N-hydroxysuccinimide.
- An example of the tartaric acid crosslinking agent is disuccinimidyl tartrate in which two carboxyl groups of tartaric acid are modified with N-hydroxysuccinimide.
- succinic acid crosslinking agent disuccinimidyl succinate obtained by modifying two carboxyl groups of succinic acid with N-hydroxysuccinimide can be mentioned.
- FIG. 4 is an explanatory diagram showing an example of a crosslinking reaction when TAPEG and an organic acid crosslinking agent triscinimidyl citrate (TSC) are mixed.
- TAPEG organic acid crosslinking agent triscinimidyl citrate
- TSC triscinimidyl citrate
- An alkali component is preferably added to the liquid component 21 or the powder component 22. Thereby, the adhesion speed can be increased.
- the alkaline component is, for example, NaOH, NaHCO 3 , KOH.
- an alkaline solution is mixed with the liquid component 21.
- an alkaline solution 0.1M NaOH sol. ( ⁇ L).
- the powder component 22 is mixed with an alkali component powdered from a substance dissolved in an alkaline solution.
- the ratio P / L of calcium phosphate (P (g)), which is the first powder component, and the liquid component (L (g)) satisfies the condition of 1/1 ⁇ P / L ⁇ 3.5 / 1. It is preferable. Thereby, a moldability can be improved. In the case of 3.5 / 1 ⁇ P / L, there is a risk of collapse. Further, in the case of P / L ⁇ 1/1, there is a risk of non-uniformity.
- An adhesive bone filling material 31 is an adhesive bone filling material that adheres to and hardens bone tissue by being injected and applied to, for example, a bone tissue defect portion or a compression fracture portion.
- the composition includes a mixture of a liquid component 21 composed of a buffer solution containing a water-soluble biocompatible polymer and a powder component 22 containing calcium phosphate and an organic acid cross-linking agent. Is short and the absorbency can be increased.
- the three-point bending strength can be made moderate (1 MPa to 50 MPa).
- the three-point bending strength can be set to an appropriate strength of 1 MPa or more and 50 MPa or less, the risk of fracture of the vertebral bone adjacent to the surgical site can be greatly reduced.
- Polymethylmethacrylate bone cement becomes too hard and can cause further fractures of the surrounding vertebral bones.
- the calcium phosphate bone filler is brittle, there is a risk of fracture at the reinforcing portion.
- these fears can be reduced, which is a great advantage in practical use.
- the adhesive bone filling material 31 has a configuration in which the water-soluble biocompatible polymer is a biopolymer or a synthetic polymer having water-soluble biocompatibility, and thus has high dispersibility in a buffer solution.
- a liquid component can be prepared, and it can be used as an adhesive bone filler that is highly safe for living bodies.
- the adhesive bone filling material 31 which is an embodiment of the present invention can increase the absorbability because the biopolymer is albumin or gelatin.
- the adhesive bone filling material 31 has a structure in which the albumin is one or more of serum albumin or recombinant albumin of bovine, pig, horse or human, Can be high. Moreover, cell adhesiveness can be improved.
- the adhesive bone filling material 31 has a structure in which the gelatin is one or more of bovine, porcine, fish or human, or genetically modified gelatin.
- the gelatin is one or more of bovine, porcine, fish or human, or genetically modified gelatin.
- cell adhesion can be enhanced.
- the adhesive bone filling material 31 has a structure in which the synthetic polymer is a polyether having a side chain or an amino group at the terminal or a water-soluble polymer. By crosslinking the amino side chain or amino terminal of the molecule, the strength of the bone filling material itself can be increased.
- the adhesive bone filling material 31 has a structure in which the polyether having an amino group at the side chain or terminal is a polyethylene glycol having 3 to 8 branches. By crosslinking the amino terminus, the strength of the bone filling material itself can be increased.
- the 3 to 8 branched polyethylene glycol is pentaerythritol tetrapolyethylene glycol ether, and the polyethylene glycol having an amino group at the side chain or terminal is tetraamine-terminated. Since it is the structure which is polyethyleneglycol (4 branches), a crosslinked structure can be formed by bridge
- the calcium phosphate includes ⁇ -tricalcium phosphate ( ⁇ -TCP), ⁇ ′-tricalcium phosphate ( ⁇ ′-TCP), and ⁇ -tricalcium phosphate.
- ⁇ -TCP ⁇ -tricalcium phosphate
- OCP octacalcium phosphate
- DCPD dicalium phosphate dibasic
- TeCP tetracalcium phosphate monooxide
- HAp hydroxyapatite
- the organic acid crosslinking agent is modified with N-hydroxysuccinimide or N-hydroxysulfosuccinimide on all carboxyl groups of tartaric acid, malic acid, succinic acid or citric acid. Since it is the structure which is 1 type, or 2 or more types of a crosslinking agent, adhesiveness can be provided to a bone filling agent.
- the adhesive bone filling material 31 according to the embodiment of the present invention has a configuration in which an alkali component is added to the liquid component or the powder component, the bonding speed can be increased and the bonding time can be shortened. .
- P / L which is the ratio of the first powder component (P (g)) to the liquid component (L (g)), is 1/1. Since it is the structure which satisfy
- An adhesive bone filling kit 11 includes a first container 12 enclosing a liquid component 21, a second container 13 enclosing a powder component 22, a liquid component 21 and a powder component. 22, a third container 14 for producing an adhesive bone filling material 31, and an injection container 15 for injecting the adhesive bone filling material 31 into an adhesive part, wherein the liquid component is water-soluble.
- This is composed of a buffer solution containing a biocompatible polymer, and the powder component is a mixed powder of calcium phosphate as the first powder component and organic acid crosslinking agent as the second powder component. Adhesion treatment can be performed easily and promptly without the need for other instruments / reagents.
- the adhesive bone filling material and the adhesive bone filling material kit that are embodiments of the present invention are not limited to the above-described embodiments, and may be implemented with various modifications within the scope of the technical idea of the present invention. Can do. Specific examples of this embodiment are shown in the following examples. However, the present invention is not limited to these examples.
- Example 1 ⁇ Optimization test of liquid / solid (P / L)> In the following manner, the bone filling agent forming ability at various mixing ratios of liquid / solid (P / L) was examined, and the optimum condition of liquid / solid (P / L) was examined.
- Table 1 shows the observation results of the preparation conditions and moldability of the adhesive bone filler prepared using 42 w / v% HSA.
- Table 2 shows the preparation conditions and moldability observation results of the adhesive bone filler prepared using 30 w / v% cod gelatin.
- each molded sample of the adhesive bone filler prepared using 42 w / v% HSA was allowed to stand in a 37 ° C. humid environment for 24 hours.
- each molded sample was prepared using an adhesive bone filler prepared using 30 w / v% cod gelatin.
- FIG. 7 is a process diagram of the bone adhesion test.
- a living bone imitation material was used as the test piece 52 for the bone adhesion test.
- the living bone mimicking material was prepared by immersing ivory (diameter 6 mm, thickness 0.3 mm, disk shape) in a 25% phosphoric acid solution for 180 seconds, washing with a large amount of water, and drying.
- FIG. 8 is an electron micrograph showing an example of the surface of the living bone mimic material used in this test.
- ⁇ Adhesion test> First, ivory (diameter 6 mm, thickness 0.3 mm, disk shape) was used for the test piece 52. Before the adhesion test, the ivory was immersed in a 25% phosphoric acid solution for 180 seconds, washed with a large amount of water and dried. For the adhesion test, a test piece (ivory) was attached to the surface 51 a of the cylindrical polymethylmethacrylate plastic rod 51.
- the adhesive bone filling material 31 was introduced into the cylinder of the silicone 53.
- an adhesive bone filling material P / L 3/1 using 42 w / v% HSA, bone cement (commercial product), and Biopex (manufactured by HOYA Corporation) were used.
- Table 3 shows the results of adhesion strength of these adhesive bone fillers and the like.
- Table 4 shows the results of a three-point bending strength test.
- TAPEG was dissolved in 0.1M phosphate buffer (pH 6.0) to prepare a TAPEG solution (liquid component (L)).
- ⁇ -TCP, nanoapatite particles (spherical-average particle size 40 nm, manufactured by Sofcella Corporation) and TSC were measured as solid components (P) and mixed well with a pencil stirrer.
- This mixed powder was added to a TAPEG solution dissolved in 0.1 M phosphate buffer (pH 6.0), which is a liquid component (L), and stirred and mixed with a pencil stirrer to prepare an adhesive bone filler.
- FIG. 9 is a photograph of the adhesive bone filling material (Test Example A1) discharged from the syringe.
- Table 5 shows the preparation conditions of the prepared adhesive bone filling material and the measurement results of the three-point bending strength.
- the three-point bending strength (bending strength) could be controlled to 1.28 MPa or more and 6.11 MPa or less.
- Nano HAp (spherical-average particle size 40 nm) (manufactured by Sofcella) was prepared as calcium phosphate of the powder material, and synthetic DST (Disuccinimidyl tartarate) was prepared as the organic acid crosslinking agent. A predetermined amount of DST and nano HAp were weighed and mixed well with a pencil stirrer to obtain a mixed powder. Add this mixed powder to a tube containing HSA (Human serum albumin, Sigma-Aldrich, 0.1M PBS pH6.0), a liquid component, and stir for 10 seconds with a pencil stirrer to give an adhesive bone filler. Obtained. By this method, a plurality of adhesive bone filling agents were obtained by changing the mixing ratio of HAS, DST, and nanoHAp.
- HSA Human serum albumin, Sigma-Aldrich, 0.1M PBS pH6.0
- the adhesive bone adhesive was molded into a cylindrical ( ⁇ 7 mm, height 14 mm) silicone tube. It was allowed to stand at 37 ° C. for 1 day to cure, taken out of the silicone mold and observed. At that time, the curing time was qualitatively evaluated.
- Table 6 (Test Nos. 1 to 9) and Table 7 (Test No. 1) show the state of the obtained adhesive bone filling material (homogeneity and ease of injection) and the state of the cured bone filling material. 10 to 18) and Table 8 (Test Nos. 19 to 27).
- This adhesive bone filling material using DSM had a longer setting time than DST and was easy to mold. There was a tendency for the adhesive bone filler to have a lower viscosity than the same amount of DST. From the handleability of the adhesive bone filling material and the hardness of the cured bone filling material after 24 hours, it was revealed that Test No. 3 and No. 4 were balanced.
- DSM which is a highly hydrophobic organic acid crosslinking agent
- TSC which is a highly hydrophobic organic acid cross-linking agent
- the test piece for the three-point bending test uses DSM and nanoHAp as the powder material (P), 35w / w% HSA (0.1M PBS pH6) as the liquid material (L), and this P / L ratio is 2 / 1 so that DSM was 125 mM, mixed with nano HAp, and mixed well with a pencil stirrer to obtain a mixed powder. After this mixed powder is added to the HSA solution, it is stirred with a pencil stirrer to produce an adhesive bone filler. After filling this adhesive bone filler into a 40 x 10 x 4 mm silicone mold, sandwiched by a glass plate Molded. After allowing to stand at 37 ° C. for 1 day and curing to obtain a cured bone filler, a three-point bending test was performed on the cured bone filler.
- FIG. 10 An outline of the three-point bending test is shown in FIG.
- Shimadzu Autograph AGS-H was used and evaluated with a 1KN load cell.
- the test piece was supported between fulcrums having a constant radius of curvature R, a load was applied to the center with a pressure wedge, and the load when the test piece was broken was defined as strength. (result)
- the results are shown in FIG.
- This bone filler cured product using HSA had a bending stress of 1.7 MPa ( ⁇ 0.2).
- the strength of commercially available bone filler Biopex made by Hoya Co., Ltd.
- it is considered necessary to study other biocompatible polymers in order to improve bending stress. It was.
- the ratio of ⁇ -TCP and nano-HAp was determined, excluding the mass of TSC.
- the test piece was prepared by weighing TSC, nano HAp and ⁇ -TCP and mixing them well with a pencil stirrer. Add this mixed powder to the TAPEG solution and stir with a pencil stirrer to make an adhesive bone filler, fill this adhesive bone filler into a 40 x 10 x 4 mm silicone tube, and mold with a glass plate did. After allowing to stand at 37 ° C. for 1 day and curing to obtain a cured bone filler, a three-point bending test was performed on the cured bone filler.
- the adhesive bone filling material and adhesive bone filling material kit of the present invention relates to an adhesive bone filling material and an adhesive bone filling material kit that have high adhesion to bone tissue, a short bonding time, and high absorbability.
- This adhesive bone filler has a shorter bonding time than bone cement and bone paste in the treatment of compression fractures, has high strength and high adhesive properties, and can be used with high absorbency. It can be used in the medical device / material / equipment industry.
- Adhesive bone filler kit 12 ... 1st container, 13 ... 2nd container, 14 ... 3rd container, 15 ... Injection
- pouring container 21 ... Liquid component, 22 ... Powder component, 23 ... X-ray Detector, 24 ... Stand, 31, 32 ...
- Adhesive bone filler 47 ... Bone, 47c ... Cavity, 51 ... Polymethylmethacrylate plastic rod, 51a ... Surface, 52 ... Test piece, 53 ... Cylindrical silicone
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Abstract
Description
(1)骨組織に接着して硬化する接着性骨補填剤であって、水溶性生体適合性高分子を含有する緩衝溶液からなる液体成分と、リン酸カルシウムおよび有機酸架橋剤を含む紛体成分との混合物を含むことを特徴とする接着性骨補填剤。
(2)前記水溶性生体適合性高分子が水溶性生体適合性を有する生体高分子又は合成高分子であることを特徴とする接着性骨補填剤。
(3)前記生体高分子がアルブミン又はゼラチンであることを特徴とする(2)に記載の接着性骨補填剤。
(4)前記アルブミンが、ウシ、ブタ、ウマ若しくはヒトのいずれか1種若しくは2種以上の血清アルブミン又は遺伝子組換えアルブミンであることを特徴とする(3)に記載の接着性骨補填剤。
(5)前記ゼラチンが、ウシ、ブタ、魚若しくはヒトのいずれか1種若しくは2種以上のゼラチン又は遺伝子組換えゼラチンであることを特徴とする(3)に記載の接着性骨補填剤。
(6)前記合成高分子が側鎖あるいは末端にアミノ基を有するポリエーテル又は水溶性高分子であることを特徴とする(2)に記載の接着性骨補填剤。
(7)前記ポリエーテルが3~8分岐したポリエチレングリコールであることを特徴とする(6)に記載の接着性骨補填剤。
(8)前記3~8分岐したポリエチレングリコールがペンタエリトリトール テトラポリエチレングリコールエーテルであることを特徴とする(7)に記載の接着性骨補填剤。
(9)前記水溶性高分子がポリペプチドであることを特徴とする(6)に記載の接着性骨補填剤。
(10)前記ポリペプチドがポリリジンであることを特徴とする(9)に記載の接着性骨補填剤。
(11)前記リン酸カルシウムがα-トリカルシウムフォスフェイト(α-TCP)、α´-トリカルシウムフォスフェイト(α´-TCP)、β-トリカルシウムフォスフェイト(β-TCP)、オクタカルシウムフォスフェート(OCP)、dicalcium phosphate dibasic(DCPD)、tetracalcium phosphate monoxide(TeCP)、ハイドロキシアパタイト(HAp)、リン酸水素カルシウムの1種または2種以上の組み合わせであることを特徴とする(1)~(10)のいずれかに記載の接着性骨補填剤。
(12)前記リン酸カルシウムに金属元素がドープされていることを特徴とする(1)~(11)に記載の接着性骨補填剤。
(13)前記金属元素が、亜鉛、銅、ストロンチウム、銀、チタンのうちの1種または2種以上であることを特徴とする(12)記載の接着性骨補填剤。
(14)前記リン酸カルシウムが10~1000ナノメートルの粒子であることを特徴とする(1)~(11)に記載の接着性骨補填剤。
(15)前記有機酸架橋剤が酒石酸、リンゴ酸、コハク酸又はクエン酸のすべてのカルボキシル基をN-ヒドロキシスクシンイミド若しくはN-ヒドロキシスルホスクシンイミドで修飾した架橋剤の1種または2種以上の組み合わせであることを特徴とする(1)~(14)に記載の接着性骨補填剤。
(16)前記液体成分又は前記粉体成分に、アルカリ成分が添加されていることを特徴とする(1)~(15)に記載の接着性骨補填剤。
(17)前記第1の粉体成分(P(g))と前記液体成分(L(g))の比であるP/Lが、1/1<P/L<3.5/1の条件を満たすことを特徴とする(1)~(16)に記載の接着性骨補填剤。
(18)水溶性生体適合性高分子を含有する緩衝溶液からなる液体成分を封入した第1の容器と、
リン酸カルシウムおよび有機酸架橋剤を含む粉体成分を封入した第2の容器と、前記液体成分と前記粉体成分を混合して、接着性骨補填剤を作製するための第3の容器と、前記接着性骨補填剤を接着部に注入するための注入容器と、を含むことを特徴とする接着性骨補填剤キット。
以下、添付図面を参照しながら、本発明の実施形態である接着性骨補填剤及び接着性骨補填剤キットについて説明する。
<接着性骨補填剤キット>
まず、本発明の実施形態である接着性骨補填剤キットについて説明する。
ここで、液体成分21が、水溶性生体適合性高分子を含有する緩衝溶液からなり、粉体成分22が、第1の粉体成分であるリン酸カルシウムと第2の粉体成分である有機酸架橋剤の混合紛体であり、前記接着性骨補填剤が、後述する、本発明の実施形態である接着性骨補填剤である。
<接着性骨補填剤キットの使用方法>
次に、本発明の実施形態である接着性骨補填剤キットの使用方法について説明する。
<接着性骨補填剤>
まず、本発明の実施形態である接着性骨補填剤について説明する。
<液体/固体(P/L)の最適化試験>
以下のようにして、液体/固体(P/L)の種々の混合比における骨補填剤形成能を検討し、液体/固体(P/L)の最適条件を調べた。
<骨接着性試験>
次に、上記42w/v%HSAを用いた接着性骨補填剤を用いて、骨接着性試験を行った。
<接着試験>
まず、試験片52には、象牙(直径6mm、厚さ0.3mm、円板状)を用いた。接着試験前に象牙を25%リン酸溶液に180秒浸漬後多量の水で洗浄して乾燥して使用した。接着試験のために、試験片(象牙)を円柱状のポリメチルメタクリレートプラスチックロッド51の表面51aに張り付けた。
<三点曲げ強度試験>
まず、長さ64mm、幅10mm、厚さ4mmの板状の試験片を作成した。
以下のようにして、液体/固体(P/L)の種々の混合比における骨補填剤形成能を検討した。
(実験)
紛体材料のリン酸カルシウムとしてnano HAp :Nano-SHAp(球状-平均粒径40nm) (ソフセラ社製)を用意し、有機酸架橋剤として合成品のDST(Disuccinimidyl tartarate)を用意した。このDSTとnano HApを所定量秤量し、ペンシルスターラーでよく混合し、混合粉末を得た。この混合粉末を、液体成分であるHSA(Human serum albumin, Sigma-Aldrich社製、0.1M PBS pH6.0)が封入されたチューブに添加してペンシルスターラーで10sec撹拌して接着性骨補填剤を得た。この方法で、HAS、DST、nanoHApについての混合比を変化させて複数の接着性骨補填剤を得た。
(結果)
得られた接着性骨補填剤の状態(均一性およびインジェクションの容易性)と、骨補填剤硬化物の状態を評価した結果を表6(試験No.1~9)、表7(試験No.10~18)、表8(試験No.19~27)に示す。
(実験)
DSTの代わりに、有機酸架橋剤として合成品のDSM(Disuccinimidyl malate)を使用した以外は、上記の接着性骨補填剤の評価試験1と同様に条件で試験を行った。
(結果)
得られた接着性骨補填剤の状態と、骨補填剤硬化物の状態を評価した結果を表9に示す。
(実験)
3点曲げ試験の試験片には、紛体材料(P)として、DSMとnanoHApを用い、液体材料(L)として35w/w%HSA(0.1M PBS pH6)を用い、このP/L比が2/1でDSMが125mMになるように秤量し、nano HApと混合後、ペンシルスターラーでよく混合して混合粉末を得た。この混合粉末をHSA溶液に添加した後にペンシルスターラーで撹拌して接着性骨補填剤を作製し、この接着性骨補填剤を40×10×4mmのシリコーン型枠に充填後、ガラス板ではさんで成型した。37℃で1日静置して硬化させて骨補填剤硬化物を得た後、この骨補填剤硬化物について3点曲げ試験を行った。
(結果)
結果を図11に示す。HSAを用いたこの骨補填剤硬化物は、曲げ応力が1.7MPa(±0.2)であった。一方、市販の骨補填剤バイオペックス(HOYA株式会社製)の強度は4倍以上高いことから、曲げ応力の向上を図るため、他の生体適合性高分子についての検討が必要であると考えられた。
(実験)
3点曲げ試験の試験片には、紛体材料(P)として、合成品のTSC(Trisuccinimidyl citrate)とnano HApと、α-TCP(α-Tricalcium phosphate)を用い、液体材料(L)として TAPEG/ 0.1M PBS (pH6)(TAPEG :Tetraamine terminated polyethylene glycol (MW:20,000) (日油株式会社製)を用いた。
P/L比を2.5/1に設定し、α-TCPは紛体材料のうち、TSCを除いた質量の40%となるようにして三点曲げ強度のTAPEG依存性を評価した。図12に示すように、25mM TAPEGが最も曲げ応力が高いことが確認された。
P/L比を2.5/1に設定し、α-TCPは紛体材料のうち、TSCを除いた質量の40%となるようにして三点曲げ強度のTSC濃度依存性を評価した。図13に示すように、TSC濃度は50mMがもっとも曲げ応力が高いことが確認された。
α-TCPは紛体材料のうち、TSCを除いた質量の40%となるようにして三点曲げ強度のTSC濃度依存性を評価した。図14に示すように、P/L比は2.5/1が最も曲げ応力が高くなることが確認された。予備実験でP3.5/L1は粉過多で成型が不可であった。
P/L比を2.5/1と固定し、α-TCPは紛体材料のうち、TSCを除いた質量の50, 60, 70, 75, 80%となるようにして三点曲げ強度のTSC濃度依存性を評価した。α-TCP含量75%のバイオペックスも同条件で曲げ応力を測定した。図15に示すように、α-TCP含量は70%が曲げ応力がもっとも高く、また、再現性が高いことが確認された。
25mM TAPEG / 50mM TSC + (nanoHAp + 70%α-TCP)で、P/L比は2.5/1が最も曲げ応力が高いことが示唆されたため、この条件で3点曲げ試験を行った。P/L比は2.5/1に設定した。図16に示したように、25mM TAPEG / 50mM TSC + (nanoHAp + 70%α-TCP)で Powder/Liquid比は2.5/1が最も曲げ応力が高いことが確認された。
Claims (18)
- 骨組織に接着して硬化する接着性骨補填剤であって、
水溶性生体適合性高分子を含有する緩衝溶液からなる液体成分と、リン酸カルシウムおよび有機酸架橋剤を含む紛体成分との混合物を含むことを特徴とする接着性骨補填剤。 - 前記水溶性生体適合性高分子が生体高分子又は合成高分子であることを特徴とする請求項1に記載の接着性骨補填剤。
- 前記生体高分子がアルブミン又はゼラチンであることを特徴とする請求項2に記載の接着性骨補填剤。
- 前記アルブミンが、ウシ、ブタ、ウマ若しくはヒトのいずれか1種若しくは2種以上の血清アルブミン遺伝子組換えアルブミンであることを特徴とする請求項3に記載の接着性骨補填剤。
- 前記ゼラチンが、ウシ、ブタ、魚若しくはヒトのいずれか1種若しくは2種以上のゼラチン又は遺伝子組換えゼラチンであることを特徴とする請求項3に記載の接着性骨補填剤。
- 前記合成高分子が側鎖あるいは末端にアミノ基を有するポリエーテル又は水溶性高分子であることを特徴とする請求項2に記載の接着性骨補填剤。
- 前記ポリエーテルが3~8分岐したポリエチレングリコールであることを特徴とする請求項6に記載の接着性骨補填剤。
- 前記3~8分岐したポリエチレングリコールが、ペンタエリトリトール テトラポリエチレングリコールエーテルであることを特徴とする請求項7に記載の接着性骨補填剤。
- 前記水溶性高分子がポリペプチドであることを特徴とする請求項6に記載の接着性骨補填剤。
- 前記ポリペプチドがポリリジンであることを特徴とする請求項9に記載の接着性骨補填剤。
- 前記リン酸カルシウムがα-トリカルシウムフォスフェイト(α-TCP)、α´-トリカルシウムフォスフェイト(α´-TCP)、β-トリカルシウムフォスフェイト(β-TCP)、オクタカルシウムフォスフェート(OCP)、dicalcium phosphate dibasic(DCPD)、tetracalcium phosphate monoxide(TeCP)、ハイドロキシアパタイト(HAp)、リン酸水素カルシウムの1種または2種以上の組み合わせであることを特徴とする請求項1~10いずれか1項に記載の接着性骨補填剤。
- 前記リン酸カルシウムに金属元素がドープされていることを特徴とする請求項1から11のいずれか1項に記載の接着性骨補填剤。
- 前記金属元素が、亜鉛、銅、ストロンチウム、銀、チタンのうちの1種または2種以上であることを特徴とする請求項12に記載の接着性骨補填剤。
- 前記リン酸カルシウムが10~1000ナノメートルの粒子であることを特徴とする請求項1から13のいずれか1項に記載の接着性骨補填剤。
- 前記有機酸架橋剤が酒石酸、リンゴ酸、コハク酸又はクエン酸のすべてのカルボキシル基をN-ヒドロキシスクシンイミド若しくはN-ヒドロキシスルホスクシンイミドで修飾した架橋剤の1種または2種以上の組み合わせであることを特徴とする請求項1から14いずれか1項に記載の接着性骨補填剤。
- 前記液体成分又は前記粉体成分に、アルカリ成分が添加されていることを特徴とする請求項1~15いずれか1項に記載の接着性骨補填剤。
- 前記リン酸カルシウム(P(g))と前記液体成分(L(g))の比であるP/Lが、1/1<P/L<3.5/1の条件を満たすことを特徴とする請求項1~16いずれか1項に記載の接着性骨補填剤。
- 水溶性生体適合性高分子を含有する緩衝溶液からなる液体成分を封入した第1の容器と、
リン酸カルシウムおよび有機酸架橋剤を含む粉体成分を封入した第2の容器と、
前記液体成分と前記粉体成分を混合して、接着性骨補填剤を作製するための第3の容器と、
前記接着性骨補填剤を接着部に注入するための注入容器と、
を含むことを特徴とする接着性骨補填剤キット。
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US14/772,867 US20160008507A1 (en) | 2013-03-13 | 2014-03-11 | Adhesive bone filling agent and adhesive bone filling agent kit |
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EP3630215A1 (en) * | 2017-05-26 | 2020-04-08 | Association for the Advancement of Tissue Engineering and Cell based Technologies & Therapies (A4TEC) - Associação | Ionic-doped composition methods and uses thereof |
CN117771443A (zh) * | 2023-04-18 | 2024-03-29 | 华东理工大学 | 一种可生物降解、可注射骨水泥及其制备方法和应用 |
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Also Published As
Publication number | Publication date |
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EP2974752A1 (en) | 2016-01-20 |
JPWO2014142132A1 (ja) | 2017-02-16 |
EP2974752A4 (en) | 2016-10-19 |
US20160008507A1 (en) | 2016-01-14 |
JP6048858B2 (ja) | 2016-12-21 |
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