CN113070579B - Method for preventing laser marking fonts on surgical navigation positioning instrument from falling off and rusting - Google Patents
Method for preventing laser marking fonts on surgical navigation positioning instrument from falling off and rusting Download PDFInfo
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- CN113070579B CN113070579B CN202110353891.9A CN202110353891A CN113070579B CN 113070579 B CN113070579 B CN 113070579B CN 202110353891 A CN202110353891 A CN 202110353891A CN 113070579 B CN113070579 B CN 113070579B
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- laser marking
- surgical navigation
- positioning instrument
- navigation positioning
- conical probe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/007—Marks, e.g. trade marks
Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a method for preventing laser marking fonts on a surgical navigation positioning instrument from falling off and rusting, which comprises the following steps: (1) pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution; (2) laser marking: carrying out laser marking on the pretreated conical probe; (3) and (3) post-treatment: and passivating the marked part of the conical probe subjected to laser marking by using a citric acid solution, and then cleaning. After the complete and clear laser marking mark obtained on the conical probe of the surgical navigation positioning instrument by adopting the method is subjected to 125-cycle steam sterilization and disinfection tests, the mark is still intact and free from falling off, the marking part does not rust, the product qualification rate is high, the product can be repeatedly recycled, and the service life is long.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a method for preventing laser marking fonts on a surgical navigation positioning instrument from falling off and rusting.
Background
In order to facilitate a surgeon to quickly navigate and measure the position of an operation part in the operation process, the laser marking is carried out on a conical probe of a navigation positioning instrument, usually, a plurality of annular lines surrounding the whole body of a vertebral body and digital marks near the annular lines are obtained on the conical probe through the laser marking, and the surgeon is helped to carry out accurate positioning.
The current method is to firstly carry out laser marking (laser marking energy is 45-60%, marking frequency is 80-150KHZ, and line spacing is 0.025-0.1mm), and then carry out integral surface passivation treatment by using nitric acid solution. However, because the probe of the surgical navigation positioning instrument is conical, the laser marking content on the arc surface is very easy to fall off, the corrosion resistance of the marking part is poor, the laser marking device is very easy to rust after undergoing a circulating steam sterilization test, the product percent of pass is low, the service life is short even if the laser marking device is qualified, and the laser marking device can generally only undergo 60-70 times of sterilization.
Disclosure of Invention
In order to solve the problems, the invention discloses a method for preventing laser marking fonts on a surgical navigation positioning instrument from falling off and rusting, the method comprises the steps of firstly carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument to be marked by using a nitric acid solution, then carrying out laser marking, and finally carrying out passivation treatment on a marked part by using a citric acid solution, so that a complete and clear mark can be finally obtained on the conical probe, and after 125-cycle steam sterilization and disinfection tests, the mark is still intact and free from falling off and rusting.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preventing laser marking fonts on a surgical navigation positioning instrument from falling off and rusting comprises the following steps:
(1) pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution;
(2) laser marking: carrying out laser marking on the pretreated conical probe;
(3) and (3) post-treatment: and passivating the marked part of the conical probe subjected to laser marking by using a citric acid solution, and then cleaning.
Preferably, the concentration of the nitric acid solution in the step (1) is 30 to 40%.
Preferably, the surface passivation treatment time in the step (1) is 30 to 40 min.
Preferably, the laser marking parameters in the step (2) are as follows: the laser marking energy is 30-40%, the marking frequency is 50-60KHZ, and the line spacing is 0.025-0.1 mm.
Preferably, the concentration of the citric acid solution in the step (3) is 10 to 15%.
Preferably, the step (3) is specifically: and (3) coating a citric acid solution on the marking part of the conical probe for passivation treatment, and then cleaning.
Preferably, the passivation time in the step (3) is 15 to 30 min.
The invention has the following beneficial effects:
(1) the laser marking mark obtained on the conical probe of the surgical navigation positioning instrument by adopting the method is complete and clear, and after 125-cycle steam sterilization and disinfection tests, the mark is still intact and does not fall off, the marking part does not rust, the product qualification rate is high, the product can be repeatedly recycled, and the service life is long;
(2) the laser marking mark obtained by the method is not easy to fall off and rust, the risk of falling off and rusting in the operation process is greatly reduced, and adverse effects on the operation and the postoperative condition of a patient are avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a photograph of a conical probe of a surgical navigational positioning instrument with laser marked markers prepared in examples 1-5 after being subjected to a steam sterilization test for 125 cycles;
FIG. 2 is a photograph of the conical probe of the surgical navigational positioning instrument with laser marking markers prepared in comparative example 1 after 40 cycles;
FIG. 3 is a photograph of the conical probe of the surgical navigational positioning instrument with laser marking markers prepared in comparative example 2 after 20 cycles;
FIG. 4 is a photograph of a conical probe of the surgical navigational positioning instrument with laser marking markers prepared in comparative example 3 after 100 cycles;
FIG. 5 is a photograph of a conical probe of the surgical navigational positioning instrument with laser marking markers prepared in comparative example 4 after 90 cycles;
FIG. 6 is a photograph of a conical probe of the surgical navigational positioning instrument with laser marking markers prepared in comparative example 5 after 60 cycles;
fig. 7 is a photograph of the conical probe of the surgical navigation and positioning instrument with laser marking markers prepared in comparative example 6 after 70 cycles.
Detailed Description
The present invention will now be described in further detail with reference to examples.
Example 1
(1) Pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution with the concentration of 30%, wherein the treatment time is 40 min;
(2) laser marking: carrying out laser marking on the pretreated conical probe, wherein the laser marking parameters are as follows: the laser marking energy is 30%, the marking frequency is 55KHZ, and the line spacing is 0.08 mm;
(3) and (3) post-treatment: and (3) coating a citric acid solution with the concentration of 15% on the marked part of the conical probe for passivation for 15min, and then cleaning to obtain the conical probe of the surgical navigation positioning instrument with the laser marking identifier.
Example 2
(1) Pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution with the concentration of 35%, wherein the treatment time is 35 min;
(2) laser marking: carrying out laser marking on the pretreated conical probe, wherein the laser marking parameters are as follows: the laser marking energy is 35%, the marking frequency is 60KHZ, and the line spacing is 0.025 mm;
(3) and (3) post-treatment: and (3) coating a citric acid solution with the concentration of 10% on the marked part of the conical probe for passivation treatment for 30min, and then cleaning to obtain the conical probe of the surgical navigation positioning instrument with the laser marking identifier.
Example 3
(1) Pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution with the concentration of 40%, wherein the treatment time is 30 min;
(2) laser marking: carrying out laser marking on the pretreated conical probe, wherein the laser marking parameters are as follows: the laser marking energy is 40%, the marking frequency is 50KHZ, and the line spacing is 0.1 mm;
(3) and (3) post-treatment: and (3) coating a citric acid solution with the concentration of 12% on the marked part of the conical probe for passivation treatment for 25min, and then cleaning to obtain the conical probe of the surgical navigation positioning instrument with the laser marking identifier.
Example 4
(1) Pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution with the concentration of 30%, wherein the treatment time is 30 min;
(2) laser marking: carrying out laser marking on the pretreated conical probe, wherein the laser marking parameters are as follows: the laser marking energy is 30%, the marking frequency is 50KHZ, and the line spacing is 0.03 mm;
(3) and (3) post-treatment: and (3) coating a citric acid solution with the concentration of 10% on the marked part of the conical probe for passivation treatment for 30min, and then cleaning to obtain the conical probe of the surgical navigation positioning instrument with the laser marking identifier.
Example 5
(1) Pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution with the concentration of 30%, wherein the treatment time is 35 min;
(2) laser marking: carrying out laser marking on the pretreated conical probe, wherein the laser marking parameters are as follows: the laser marking energy is 35%, the marking frequency is 55KHZ, and the line spacing is 0.05 mm;
(3) and (3) post-treatment: and (3) coating a citric acid solution with the concentration of 13% on the marked part of the conical probe for passivation treatment for 20min, and then cleaning to obtain the conical probe of the surgical navigation positioning instrument with the laser marking identifier.
Comparative example 1 is essentially the same as example 5, except that: in comparative example 1, the pretreatment of step (1) was not performed.
Comparative example 2 is essentially the same as example 5, except that: comparative example 2 was not subjected to the post-treatment of step (3).
Comparative example 3 is essentially the same as example 5, except that: comparative example 3 the laser marking energy in step (2) was 45%.
Comparative example 4 is essentially the same as example 5, except that: comparative example 4 the laser marking frequency in step (2) was 60 KHZ.
Comparative example 5 is essentially the same as example 5, except that: comparative example 5 the passivation treating solution used in step (3) was a 30% nitric acid solution.
Comparative example 6 laser marking was carried out according to the prior art process, the steps being:
(1) laser marking: carrying out laser marking on the cleaned conical probe, wherein the laser marking parameters are as follows: the laser marking energy is 50%, the marking frequency is 100KHZ, and the line spacing is 0.05 mm;
(2) and (3) integrally passivating the conical probe by adopting a 30% nitric acid solution for 35 min.
125 cycles of steam sterilization and disinfection tests (pressure 0.21Mpa, temperature 134 ℃, sterilization time 18min, drying time 30min) were carried out on the conical probes with laser marking marks obtained in examples 1-5 and comparative examples 1-6, and after each test, whether the marks on the conical probes fell off or not and whether the marked parts rusted or not were observed, and the results are recorded as shown in table 1.
TABLE 1
| Test results | |
| Example 1 | After 125 times of circulation, the paint has no shedding and no rustiness |
| Example 2 | After 125 times of circulation, no shedding and no rusting |
| Example 3 | After 125 times of circulation, the paint has no shedding and no rustiness |
| Example 4 | After 125 times of circulation, the paint has no shedding and no rustiness |
| Example 5 | After 125 times of circulation, the paint has no shedding and no rustiness |
| Comparative example 1 | After 40 times of circulation, the surface of the base material and the marked part are rusted |
| Comparative example2 | After 20 cycles, the steel plate fell off and rusted |
| Comparative example 3 | After 100 cycles, the steel plate falls off and rusts |
| Comparative example 4 | After 90 times of circulation, the steel wire had shedding and rusting |
| Comparative example 5 | After 60 times of circulation, basically no falling off occurs, and the marked part is rusted |
| Comparative example 6 | After 70 times of circulation, basically no falling off occurs, and the marked part is rusted |
As can be seen from FIG. 1, after the conical probe with laser marking markers for surgical navigation positioning instruments prepared in examples 1 to 5 is subjected to steam sterilization and disinfection tests for 125 cycles, the markers obtained by laser marking are still complete and clear, the surface of the conical probe is bright, and no rust is generated. As can be seen from fig. 2, after 40 cycles, the conical probe of the surgical navigation positioning instrument with the laser marking identifier prepared in comparative example 1 has rust on the surface of the substrate and the marked part. As can be seen from fig. 3, after the conical probe of the surgical navigation positioning instrument with the laser marking marker prepared in comparative example 2 is subjected to 20 cycles, the marker obtained on the surface of the conical probe through laser marking is seriously peeled off, and rust is generated. As can be seen from fig. 4, after the tapered probe of the surgical navigation positioning instrument with the laser marking marker prepared in comparative example 3 undergoes 100 cycles, the marker obtained by laser marking on the surface of the tapered probe begins to fall off, and rust stains appear. As can be seen from fig. 5, after 90 cycles, the mark obtained by laser marking on the surface of the conical probe of the surgical navigation positioning instrument conical probe with the laser marking mark prepared in comparative example 4 begins to fall off and rust appears. As can be seen from FIG. 6, the mark obtained by laser marking on the surface of the conical probe is not basically peeled off but rusted after 60 cycles of the conical probe of the surgical navigation and positioning instrument with the laser marking mark prepared in the comparative example 5. As can be seen from FIG. 7, the mark obtained by laser marking on the surface of the conical probe is not basically peeled off but rusted after 70 cycles of the conical probe of the surgical navigation and positioning instrument with the laser marking mark prepared in the comparative example 6.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A method for preventing laser marking fonts on surgical navigation positioning instruments from falling off and rusting is characterized in that: the method comprises the following steps:
(1) pretreatment: carrying out integral surface passivation treatment on a conical probe of the surgical navigation positioning instrument by adopting a nitric acid solution;
(2) laser marking: carrying out laser marking on the pretreated conical probe;
(3) and (3) post-treatment: passivating the marked part of the conical probe marked by the laser by using a citric acid solution, and then cleaning;
the laser marking parameters in the step (2) are as follows: the laser marking energy is 30-40%, the marking frequency is 50-60KHZ, and the line spacing is 0.025-0.1 mm;
the concentration of the citric acid solution in the step (3) is 10-15%.
2. The method for preventing the falling off and rusting of the laser marking fonts on the surgical navigation positioning instrument as claimed in claim 1, wherein the method comprises the following steps: the concentration of the nitric acid solution in the step (1) is 30-40%.
3. The method for preventing the falling off and rusting of the laser marking fonts on the surgical navigation positioning instrument as claimed in claim 1, wherein the method comprises the following steps: the surface passivation treatment time in the step (1) is 30-40 min.
4. The method for preventing the falling off and rusting of the laser marking fonts on the surgical navigation positioning instrument as claimed in claim 1, wherein the method comprises the following steps: the step (3) is specifically as follows: and (3) coating a citric acid solution on the marking position of the conical probe for passivation treatment, and then cleaning.
5. The method for preventing the falling off and rusting of the laser marking fonts on the surgical navigation positioning instrument as claimed in claim 1, wherein the method comprises the following steps: and (4) at room temperature, the passivation treatment time in the step (3) is 15-30 min.
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| CN202110353891.9A CN113070579B (en) | 2021-04-01 | 2021-04-01 | Method for preventing laser marking fonts on surgical navigation positioning instrument from falling off and rusting |
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| CN202110353891.9A CN113070579B (en) | 2021-04-01 | 2021-04-01 | Method for preventing laser marking fonts on surgical navigation positioning instrument from falling off and rusting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2719540B1 (en) * | 2012-10-11 | 2015-09-09 | Agfa-Gevaert | Color laser marking |
| CN105667112A (en) * | 2013-03-27 | 2016-06-15 | 丁雪强 | Laser marking method |
| CN105018914A (en) * | 2015-07-31 | 2015-11-04 | 瑞声光电科技(常州)有限公司 | Treatment method for ferrite stainless steel |
| CN105149793B (en) * | 2015-09-24 | 2016-10-19 | 浙江启昊科技有限公司 | Stainless steel materials laser skill carver's skill |
| CN106945446A (en) * | 2017-02-28 | 2017-07-14 | 中信戴卡股份有限公司 | It is a kind of to be used for the method in aluminum alloy surface bat printing pattern |
| CN108611639B (en) * | 2018-07-10 | 2019-12-31 | 昆山迪卡特精密电子有限公司 | Steel sheet etching passivation surface process |
| CN110923678A (en) * | 2019-12-05 | 2020-03-27 | 东莞市正为精密塑胶有限公司 | Chemical plating method for mobile phone antenna |
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