CN116285659A - Method for preventing bone fragments on surface of medical miniature abrasive drill from adhering - Google Patents
Method for preventing bone fragments on surface of medical miniature abrasive drill from adhering Download PDFInfo
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- CN116285659A CN116285659A CN202310129018.0A CN202310129018A CN116285659A CN 116285659 A CN116285659 A CN 116285659A CN 202310129018 A CN202310129018 A CN 202310129018A CN 116285659 A CN116285659 A CN 116285659A
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- 238000000034 method Methods 0.000 title claims abstract description 34
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- 125000000524 functional group Chemical group 0.000 claims description 2
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1613—Component parts
- A61B17/1615—Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
The invention provides a method for preventing bone fragments on the surface of a medical abrasive drill from adhering, which utilizes the principle of insect catching and sliding of nepenthes, and adopts the combination of super-smooth silicone oil and super-hydrophobic octadecylamine modified graphene oxide to form a waxy area similar to nepenthes. In the method, polydimethylsiloxane silicone oil with a lower friction coefficient and a graphene material with a single-layer lamellar atomic structure are adopted, so that the graphene material has an ultra-smooth characteristic. And adopting octadecylamine to modify graphene oxide so that the graphene oxide has super-hydrophobic property. In addition, the modified graphene oxide creates a micro-nano rough surface by changing a molecular level structure, so that the hydrophobicity of the graphene oxide is further enhanced. And spraying the coating material on the surface of the abrasive drilling machine to enable the surface of the abrasive drilling machine to have a super-smooth super-hydrophobic function. In the grinding process, bone fragments are not easy to adhere to the surface of the grinding drill, and the bone fragments fall off under the flushing of a cooling medium. The method effectively prevents the phenomenon that bone scraps are easy to adhere in grinding, inhibits irreversible heat damage to bones in a grinding area, and shortens the recovery time of patients.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and in particular relates to a method for preventing bone fragments on the surface of a medical miniature abrasive drill from adhering.
Technical Field
Along with the continuous rising of the aging proportion of the population in China, more and more people cause spinal diseases due to osteoporosis, such as: osteoporotic fracture, herniated disk, and spinal stenosis, etc. Miniature ball diamond abrasive drills are often used in these orthopedic operations because of their small depth of cut and ease of manipulation. However, the commercial ball diamond abrasive drill is easy to cause bone dust adhesion during grinding, the friction between abrasive particles and bone is increased due to the bone dust adhesion, cutting is difficult, heating value is increased, and the temperature of bone around a grinding area is increased, so that the peripheral nerve thermal injury of the bone is caused. Second, bone fragments accumulate to cause difficult removal of bone fragments from the ground area, and the ground surface and bone are easily rubbed, resulting in difficult grinding to continue. Therefore, bone chip adhesion is an important cause of bone temperature rise, and inhibiting bone chip adhesion can effectively inhibit temperature rise in the grinding area.
Publication number CN115044950A discloses a bionic desert beetle self-transportation bone micro-grinding head and a preparation process thereof. The patent simulates a liquid self-transportation structure with hydrophilic protrusions and recessed parts on the surface of the coleoptera of the desert beetles. Which uses a hydrophobic substrate to repel droplets flowing toward the hydrophilic diamond where the accumulated droplets are transported under gravity to the hydrophobic layer of the recessed portion. The structure promotes the transportation of the cooling medium liquid drops to the grinding area, improves the cooling effect of the bone grinding area, and further reduces the temperature of the bone grinding area. However, this structure does not prevent bone fragments from adhering to the surface of the grinding head. Because the surface of the bone powder does not have super-slip performance, bone fragments have a nailing phenomenon on a hydrophobic surface and adhere to the surface of the grinding head, and the bone powder is not easy to discharge from the surface of the grinding head. In addition, due to the high grinding temperature, the bone fragments undergo dehydration condensation reaction and Maillard reaction at high temperature, so that the bone fragments harden themselves and have strong adhesiveness. When the adhered bone fragments are ground, the bone fragments are gradually accumulated, so that the grinding head is invalid from the transportation structure, the bone grinding temperature is continuously increased, and the effect of reducing a bone grinding area is difficult to achieve.
Publication number CN115363743A discloses an anti-adhesion medical high-frequency electrotome and a preparation method thereof. The electric knife head surface is composed of radial grooves and polytetrafluoroethylene coatings, wherein the radial grooves are formed in the periphery from the center to the periphery, and the micro grooves and the spider web-shaped micro-thread convex block structures are formed, so that the contact surface between the head surface and a cutting tissue part is reduced, and a micro air cushion structure is formed to realize that the head is not sticky. However, polytetrafluoroethylene belongs to 3 kinds of carcinogens, is easily degraded at high temperature, generates harmful compounds, and has certain danger to human bodies.
Disclosure of Invention
The invention provides a method for preventing bone fragments on the surface of a medical miniature abrasive drill from adhering, which can effectively avoid the rise of bone temperature caused by the adhesion of the bone fragments on the surface of the abrasive drill.
In order to achieve the above object, the present invention provides the following solutions: a method for preventing bone fragments on the surface of a medical miniature abrasive drill from adhering. The method is characterized in that: the method for preventing bone fragments on the surface of the medical micro grinding drill from adhering comprises the process of preventing the bone fragments from adhering when the medical micro grinding drill is adopted in a cooling medium, wherein the ultra-smooth silicone oil and the ultra-hydrophobic octadecylamine modified graphene oxide coating are coated.
Preferably, the ultra-smooth silicon oil layer is polydimethylsiloxane and has a low friction coefficient.
The super-hydrophobic octadecylamine modified graphene oxide is a material obtained after the octadecylamine functionalized graphene oxide is prepared, the octadecylamine modified graphene oxide extends to a single-layer layered structure of graphene carbon atoms, and the single-layer structure of the super-hydrophobic octadecylamine modified graphene oxide has super-slip characteristics; the physical and chemical reaction between the octadecylamine and the graphene oxide removes the hydrophilic functional group on the graphene oxide, and grafts the long hydrocarbon chain of the octadecylamine onto the graphene oxide, so that the surface energy is reduced, and the material has superhydrophobicity; in addition, the modified graphene oxide creates a micro-nano rough surface by changing a molecular level structure, so that the hydrophobicity of the graphene oxide is further increased.
Graphene oxide and silicone oil with lower surface energy, lower friction coefficient and surface roughness structure are used as main materials of a coating and are sprayed on the surface of the abrasive drilling machine, so that the surface of the abrasive drilling machine has a super-smooth hydrophobic function.
The bone chip anti-adhesion process during grinding by adopting the medical miniature grinding drill in the cooling medium is characterized in that:
step1: the rotation of the abrasive drill makes the diamond abrasive particles abrade the diseased bone to generate bone fragments;
step2: over time, bone fragments accumulate and the ground bone fragments are squeezed against the ground surface;
step3: the coating has super-slip super-hydrophobic performance, and bone fragments are difficult to adhere to the surface of the abrasive drill. In the grinding process, the ground bone fragments do not adhere to the surface of the grinding drill, and the scouring force of the cooling medium on the bone fragments and the gravity of the bone fragments enable the bone fragments to fall off after sliding on the surface of the grinding drill and be taken away along the air flow direction, so that the anti-adhesion effect is achieved.
Preferably, the surface roughness structure is formed of several dispersed, tens to tens microns of the sheet-shaped octadecylamine modified graphene oxide.
Preferably, the roughness of the roughness structure varies from several micrometers to tens of micrometers.
The method for preventing bone fragments on the surface of the medical miniature abrasive drill from adhering can obtain the following beneficial effects:
(1) solves the problem of bone fragments adhesion. Forming a waxy region similar to nepenthes by utilizing a nepenthes insect catching sliding principle and adopting a combination of super-smooth silicone oil and super-hydrophobic octadecylamine modified graphene oxide; the silicone oil layer is similar to the wax layer, has a lower friction coefficient, and realizes the ultra-slip characteristic; the modified graphene oxide has lower surface energy, and in addition, the modified graphene oxide creates a micro-nano rough surface by changing a molecular level structure, so that the hydrophobicity of the graphene oxide is further increased. Therefore, the coating realizes the sliding property similar to nepenthes and has the super-hydrophobic function. The coating is firmly attached to the whole grinding surface, so that the grinding tool has the super-slip super-hydrophobic function. In the grinding process, the ground bone fragments are not easy to adhere to the surface of the grinding drill, and the bone fragments slip off after sliding on the surface of the grinding drill due to the scouring force of the cooling medium on the bone fragments and the gravity of the bone fragments, so that the bone fragments are taken away along the airflow direction, and the effect of preventing the bone fragments from adhering is achieved.
(2) Inhibiting bone thermal injury. In the grinding process of the traditional miniature ball head diamond grinding drill, bone fragments adhere to the abrasive particles, so that the extrusion force and friction force between the grinding bit and bone are increased, and the grinding heat is greatly increased. However, due to the super-smooth super-hydrophobic characteristic of the miniature ball head grinding drill for preventing the bone fragments from adhering, the bone fragments are difficult to adhere to the surface of the grinding drill, and the scouring force of the flowing cooling medium on the bone fragments and the gravity of the bone fragments enable the bone fragments to roll off the surface of the grinding drill and be taken away along with air flow. Therefore, the anti-bone-chip adhesion grinding drill reduces bone chip accumulation, reduces extrusion force and friction force, and reduces the generation of a large amount of heat. And secondly, most of grinding heat is taken away by bone fragments in grinding, and most of bone fragments can be taken away by a cooling medium when the miniature abrasive drill for preventing bone fragments from adhering is used for grinding, so that rapid heat dissipation of a grinding area is promoted. In addition, the octadecylamine modified graphene oxide in the coating has good heat conductivity, and heat is uniformly conducted to the surface of the abrasive drill, so that more heat is conducted by the cutter, the heat dissipation capacity in the grinding process is increased, and the heat dissipation efficiency is improved. In conclusion, the grinding drill reduces heat generation and improves heat dissipation efficiency during bone grinding, so that bone thermal damage is remarkably restrained.
(3) And the grinding efficiency is improved. Because of the agglomeration and adhesion of the bone fragments, the bone fragments are easy to adhere to the surface of the abrasive drill due to the high temperature during grinding of the common electroplating diamond abrasive drill, the bone fragments are further accumulated after grinding, and when the bone fragments are accumulated to a certain extent, the abrasive drill needs to be cleaned, so that the operation time is prolonged, and the risk of patients is increased. The bone chips are difficult to adhere to the surface of the abrasive drill, so that the cleaning step is omitted, the grinding efficiency is improved, the operation time is shortened, and the operation risk is reduced.
(4) The service life of the cutter is prolonged. The coating contains epoxy resin, a silane coupling agent and silicone oil. The epoxy resin has good adhesive property, and the silicone oil reacts with the silane coupling agent to form bond connection, and meanwhile, the epoxy resin also reacts with the silane coupling agent to form bond connection, so that the coating is not easy to fall off after preparation. Thereby prolonging the service life of the cutter.
Drawings
FIG. 1 is a schematic view of an anti-sticking micro abrasive drill according to the present invention.
FIG. 2 is an enlarged view of a portion of a super-slip superhydrophobic coating for a method for preventing bone fragments from adhering to a surface of a medical micro abrasive drill according to the present invention.
Fig. 3 is a diagram showing a process of preparing an anti-adhesion abrasive drill according to a method for preventing bone fragments on the surface of a medical micro abrasive drill according to the present invention.
Fig. 4 is an anti-adhesion schematic diagram of a method for preventing bone fragments on the surface of a medical micro abrasive drill according to the present invention.
Reference numerals illustrate: 1-grinding drill, 2-super-smooth super-hydrophobic coating, 21-silicone oil, 22-octadecylamine modified graphene oxide, 23-silane coupling agent, 24-epoxy resin, 25-absolute ethyl alcohol, 26-ethyl acetate, 3-bone, 31-bone fragments and 4-cooling medium.
Detailed Description
The invention provides a method for preventing bone fragments on the surface of a medical miniature abrasive drill from adhering, which solves the problems in the prior art, can prevent the bone fragments 31 from adhering to the surface of the abrasive drill 1 and can inhibit the heat damage of bones 3.
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Fig. 1 is a schematic view of an anti-adhesion micro abrasive drill according to the method for preventing bone fragments on the surface of a medical micro abrasive drill. The abrasive drill 1 comprises a super-slip super-hydrophobic coating 2 and a medical miniature abrasive drill 1. The coating is sprayed on the surface of the abrasive drill 1.
FIG. 2 is a partial enlarged view of a super-slip superhydrophobic coating for a method for preventing bone fragments from adhering to a surface of a medical micro abrasive drill according to the present invention. The coating material comprises silicone oil 21, octadecylamine modified graphene oxide 22, a silane coupling agent 23 and epoxy resin 24. The octadecylamine modified graphene oxide 22 has superhydrophobicity and also provides a surface roughness structure for the surface of the coating.
As shown in fig. 3, in this embodiment, the preparation process of the micro abrasive drill 1 for preventing bone fragments 31 from adhering is as follows:
step1: 5g of silicone oil 21, 5g of silane coupling agent 23, 300mgODA-GO22, 5g of absolute ethyl alcohol 25 and 5g of ethyl acetate 26 are mixed in a beaker, and stirred for 3 hours by using a magnetic stirrer to obtain a solution A;
step2: 2.5g of epoxy resin 24 was stirred until it was completely dissolved in 5g of ethyl acetate 26 to obtain solution B;
step3: mixing the solutions A, B, and finally stirring for 3 hours by using a magnetic stirrer to obtain a mixed solution;
step4: pouring the mixed solution into a spray gun, spraying the mixed solution on the surface of the abrasive drill 1 at the pressure of 0.3MPa, and drying the coating for 48 hours to finally obtain the abrasive drill 1 with the anti-adhesion function.
Fig. 4 is an anti-adhesion schematic diagram of a method for preventing bone fragments 31 on the surface of a medical micro abrasive drill 1 from adhering, wherein the anti-adhesion process is as follows:
step1: rotation of the abrasive drill 1 causes the diamond abrasive particles to abrade the diseased bone 3, producing bone fragments 31;
step2: over time, bone fragments 31 accumulate and the ground bone fragments 31 are squeezed to the surface of the abrasive drill 1;
step3: the coating has super-slip super-hydrophobic property, and bone fragments 31 are difficult to adhere to the surface of the abrasive drill 1. In the grinding process, the ground bone fragments 31 are not easy to adhere to the surface of the grinding drill 1, and the bone fragments 31 are fallen off after sliding on the surface of the grinding drill 1 due to the scouring force of the cooling medium 4 on the bone fragments 31 and the gravity of the bone fragments 31, so that the anti-adhesion effect is achieved.
The above embodiments are merely specific examples for further detailed description of the object, technical solution and advantageous effects of the present invention, and the present invention is not limited thereto. Any equivalent replacement, modification, etc. made within the scope of the disclosure of the present invention are included in the scope of the present invention.
Claims (4)
1. A method for preventing bone fragments on the surface of a medical miniature abrasive drill from adhering is characterized by comprising the following steps: the method for preventing the bone fragments on the surface of the medical micro grinding drill from adhering comprises a super-smooth silicone oil (21) layer and a super-hydrophobic octadecylamine modified graphene oxide (22) coating, and the bone fragments (31) are prevented from adhering in the grinding process of the medical micro grinding drill (1) in a cooling medium (4).
2. The ultra-smooth silicone oil (21) layer and ultra-hydrophobic octadecylamine modified graphene oxide (22) coating according to claim 1, characterized in that: the ultra-smooth silicone oil (21) layer is polydimethylsiloxane and has a low friction coefficient; the super-hydrophobic octadecylamine modified graphene oxide (22) is a material obtained after octadecylamine functionalized graphene oxide, wherein the octadecylamine modified graphene oxide (22) extends to a single-layer layered structure of graphene carbon atoms, and the single-layer structure has super-slip characteristic; the physical and chemical reaction between the octadecylamine and the graphene oxide removes the hydrophilic functional group on the graphene oxide, and grafts the long hydrocarbon chain of the octadecylamine onto the graphene oxide, so that the surface energy is reduced, and the material has superhydrophobicity; in addition, the modified graphene oxide creates a micro-nano rough surface by changing a molecular level structure, so that the hydrophobicity of the graphene oxide is further increased; graphene oxide and silicone oil (21) with lower surface energy, lower friction coefficient and surface roughness structure are used as main materials of a coating and are sprayed on the surface of the abrasive drill (1), so that the surface of the abrasive drill (1) has a super-smooth super-hydrophobic function.
3. The bone chip (31) anti-adhesion process in grinding with a medical micro drill (1) in a cooling medium (4) according to claim 1, characterized in that:
the first step: the rotation of the grinding drill (1) enables the diamond abrasive particles to grind off the diseased bone (3) to generate bone fragments (31);
and a second step of: over time, bone fragments (31) accumulate, and the ground bone fragments (31) are squeezed to the surface of the grinding bit (1);
and a third step of: the coating has super-slip super-hydrophobic performance, bone fragments (31) are difficult to adhere to the surface of the abrasive drill (1) in the grinding process, the ground bone fragments (31) are difficult to adhere to the surface of the abrasive drill (1), and the scouring force of the cooling medium (4) on the bone fragments (31) and the gravity of the bone fragments (31) enable the bone fragments (31) to fall off after sliding on the surface of the abrasive drill (1) and are taken away along the airflow direction, so that the anti-adhesion effect is achieved.
4. The method of forming micro-nano asperities on a surface of a coating according to claim 2, wherein: the surface roughness structure is formed by a plurality of dispersed sheet-shaped octadecylamine modified graphene oxide (22) with the thickness of tens to tens of micrometers being different; the roughness of the roughness structure is several micrometers to tens of micrometers.
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| CN202310129018.0A CN116285659B (en) | 2023-02-17 | 2023-02-17 | Method for preventing micro abrasive drilling surface from adhering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN116285659B (en) | 2024-04-12 |
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