CN107363486A - A kind of method of electric knife surface laser cutting polishing integral processing - Google Patents
A kind of method of electric knife surface laser cutting polishing integral processing Download PDFInfo
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- CN107363486A CN107363486A CN201710669351.5A CN201710669351A CN107363486A CN 107363486 A CN107363486 A CN 107363486A CN 201710669351 A CN201710669351 A CN 201710669351A CN 107363486 A CN107363486 A CN 107363486A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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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
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00595—Cauterization
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Abstract
A kind of processing method of electric knife surface laser cutting polishing integral of the present invention, step 1：Metal electric knife sample is taken to be cleaned by ultrasonic with alcohol, dried；Step 2：Very low power processing is carried out to electric knife knife face using pulse width 600ps psec optical fiber laser setting laser scanning region 4mm × 15mm；Step 3：The electric knife machined is cleaned by ultrasonic；Step 4：Processing is polished to electric knife knife face very low power region using pulse width 220ns nanosecoud pulse laser setting laser scanning region 6mm × 20mm.Step 5：The electric knife machined is cleaned by ultrasonic.The present invention can improve the viscous knife problem in operation, and polished surface helps to extenuate electric knife corrosion failure, extends electric knife service life.The present invention utilizes the advantage of laser micro-machining technology, prepares micro-structural using laser direct writing system high-efficiency high-accuracy on electric knife surface, and machining area and size range can adjust according to being actually needed.
Description
Technical field
The present invention relates to a kind of laser processing method on electric knife surface, especially a kind of electric knife surface laser cutting is thrown
The processing method of light integration, belongs to metal material surface Laser Micro-Machining field.
Background technology
Electric knife is the electrosurgical unit for substituting coventional scalpel.The electrified innovation of surgical field can trace back to
19 early 20th centurys in the end of the century, earliest applied in the sideration of tumour.According to the principle of Medical Physics, electric knife is exactly
Using high frequency electric by the fuel factor of body and manufactured.Due to the effective area very little of contact, and in electrode undertissue
Current density is but very big, it is possible to producing substantial amounts of heat in a flash, the tissue under electrode it is explosive evaporate, division
Into not bleeding, narrow and flat, deep several millimeters otch, but also blood clotting in blood vessel can be made to necessarily
Depth, instead of ligation, complete the hemostasis work of otch.Due to the operation principle of electric knife, tissue is cut using electric knife
Cut afterwards the surface of a wound it is neat, without oozing of blood, but local organization blood supply obstacle, histocyte can be caused to destroy, portion of tissue charcoal
Change and liquefaction of fat.So electric knife has, cutting speed is fast, haemostatic effect is good, it is simple to operate, get a clear view, postoperative pain
Reduce, but cannot be used for same position and cut repeatedly and clamp bulk tissue fulguration.
In recent years, electric knife is widely used in the section office such as gynaecology, the department of stomatology, department of general surgery, wherein with the operation in gynaecology
It is most widely used.Enough excision extensions and clearly incisxal edge are can guarantee that using electric knife in operation on cervix, is reduced in art
Bleeding, improve operative speed.In the gingivoplasty and surgical correction of lingual frenum of the department of stomatology, can substantially it be contracted using electric knife
Short operating time, intraoperative hemorrhage is reduced, visual area is clear, and a surgical effect and rear effect are preferable, reduce patient suffering.Due to
When electric knife is cut, one side electric current and heat energy radially distribute along incisxal edge, cause local organization blood supply obstacle, tissue thin
Born of the same parents destroy otch hydrops；On the other hand, substantial amounts of adipocyte destroys, liquefaction of fat, causes fat excessive, along with high temperature promotees
Tissue is set coagulation necrosis occur, these are the good culture mediums of bacterium, at this moment if tissue has infection to influence to create in itself
The healing of mouth, but also the probability of tissue infection can be increased.
The present invention is easily bonded in its surface for tissue during electric knife use is heated, and makes for a long time
The problem of with generation being corroded and then influenceing its performance, attempt to carry out very low power structure on electric knife surface using picosecond laser
Processing, and be polished with nanosecond laser to improve lubrication, corrosion and the viscous knife problem during its use, reduce scalpel
Loss, mitigate patient's pain, improve surgical quality.
The content of the invention
It is an object of the invention to provide a kind of processing method of electric knife surface laser cutting polishing integral.For electricity now
Tissue is easily bonded in its surface during knife use and it makes because human body fluid acts on easy generation corrosion
The problem of with performance, very low power structure is made on electric knife surface using picosecond laser, is polished place using nanosecond laser afterwards
Reason.Laser-processing system sketch such as Fig. 1 used in the present invention, it includes psec/nanosecond laser and corresponding laser stops direct write system
System, specifically includes psec optical fiber laser and nanosecoud pulse laser, and the optical filtering, attenuator, spectroscope, anti-being sequentially arranged
Penetrate mirror, shield, focus lamp and horizontal table；Making laser, final laser beam focus is in sample work by a series of optical elements
Part surface is processed.
In order to reach the above object, the present invention provides a kind of processing side of electric knife surface laser cutting polishing integral
Method, using following technical solution：
The first step：Electric knife sample made of metal material is taken to be cleaned by ultrasonic with alcohol, dried.
Second step：Laser scanning region 4mm × 15mm is set to electricity using pulse width 600ps psec optical fiber laser
Knife knife face carries out very low power processing, and groove direction is parallel with blade direction, the fine and close filling of trench region.The μ of laser spot diameter 35
M, 193~1064nm of wavelength of laser, 10~1000KHz of repetition rate, 1~100W of power output, laser scanning speed 10~
1000mm/s, scanning times 1~200 time.
3rd step：The electric knife machined is cleaned by ultrasonic.
4th step：Laser scanning region 6mm × 20mm is set to electricity using pulse width 220ns nanosecoud pulse laser
Knife knife face very low power is polished processing, and groove direction is parallel with nanosecond laser scanning direction, the fine and close filling of polishing area.Laser
50 μm of spot diameter, 193~1064nm of wavelength of laser, 10~1000KHz of repetition rate, 1~200W of power output, laser are swept
Retouch 10~1000mm/s of speed, scanning times 1~300 time.
5th step：The electric knife machined is cleaned by ultrasonic.
Wherein, the processing of laser very low power, 50~250 μm of very low power width, ditch separation 50 are carried out in the second step
~250 μm.
Wherein, protective gas is led in second step and the 4th step process.
Wherein, described protective gas is argon gas.
A kind of good effect of the processing method of electric knife surface laser cutting polishing integral of the present invention is：
(1) this method carries out the very low power processing of electric knife surface and polishing using laser, substantially increases the micro- knot in metal surface
The process velocity and precision of structure, production efficiency can be improved in actual production, save production cost, increase economic efficiency.
(2) this method carries out the processing of very low power structure on electric knife surface using picosecond laser, and uses nanosecond laser pair
Very low power is polished the performance for improving groove and initial surface, and its surface can be made to reduce during use of performing the operation and human body
The bonding of tissue, the mobility of lubricating fluid during use is improved, improve the corrosion resistance and performance of electric knife.
(3) this method utilizes laser direct writing system, can be by changing laser parameter such as power, frequency, processing times, sweeping
Size shape of speed and machining area etc. is retouched accurately to be controlled, can obtain different in width and depth very low power structure and
Polishing layer thickness.
Brief description of the drawings
Fig. 1 laser-processing system sketches.
Fig. 2 picosecond lasers tentatively prepare the scanning electron microscope (SEM) photograph of very low power structure.
Sem image after the polishing of Fig. 3 very low power structures nanosecond laser.
Fig. 4 psecs prepare very low power structure Laser Scanning Confocal Microscope three-dimensional appearance.
The Laser Scanning Confocal Microscope three-dimensional appearance of groove structure after Fig. 5 nanoseconds polish.
The argon gas 8 of 6 focus lamp of psec/nanosecond laser 1 optical filtering, 2 attenuator, 3 spectroscope, 4 speculum, 5 shield 7
The horizontal table 10 of electric knife sample 9
Embodiment
Below in conjunction with the accompanying drawings and the implementation process of the present invention is explained in detail instantiation.
A kind of processing method of electric knife surface laser cutting polishing integral of the present invention, laser-processing system sketch used is such as
Fig. 1, it includes psec/nanosecond laser 1 and corresponding laser stops straight-writing system, specifically includes psec optical fiber laser and nanosecond
Pulse laser, and optical filtering 2, attenuator 3, spectroscope 4, speculum 5, shield 6, focus lamp 7 and the horizontal work being sequentially arranged
Make platform 10；Laser is set to be processed by a series of optical elements, final laser beam focus on sample workpiece surface.
Embodiment 1：
Step 1. takes metal electric knife sample 9 be cleaned by ultrasonic with alcohol, dried.
Step 2. starts picosecond laser 1 and supporting software systems, sets scanning area 4mm × 15mm, groove width
It it is 50 μm with spacing, groove direction is parallel with blade direction.35 μm, optical maser wavelength 193nm of laser spot diameter, repetition rate
10KHz, power output 1W, laser scanning speed 10mm/s, scanning times 200 times.Lead to protective gas argon gas 8 in process.
Step 3. is cleaned by ultrasonic to the electric knife machined.
Step 4. sets laser scanning region 6mm × 20mm to electricity using pulse width 220ns nanosecoud pulse laser
Knife knife face very low power is polished processing, and groove direction is parallel with nanosecond laser scanning direction.50 μm of laser spot diameter, laser
Wavelength 193nm, repetition rate 10KHz, power output 1W, laser scanning speed 10mm/s, scanning times 300 times.
Step 5. is cleaned by ultrasonic to the electric knife machined.
Embodiment 2：
Step 1. is the same as embodiment 1.
Step 2. starts picosecond laser 1 and supporting software systems, sets scanning area 4mm × 15mm, groove width
It it is 150 μm with spacing, groove direction is parallel with blade direction.35 μm, optical maser wavelength 532nm of laser spot diameter, repetition rate
500KHz, power output 50W, laser scanning speed 500mm/s, scanning times 100 times.Lead to protective gas argon gas in process
8.The result of preliminary cutting is as shown in Fig. 2 to be copolymerized burnt 3-D view as shown in Figure 4.
Step 3. is the same as embodiment 1.
Step 4. sets laser scanning region 6mm × 20mm to electricity using pulse width 220ns nanosecoud pulse laser
Knife knife face very low power is polished processing, and groove direction is parallel with nanosecond laser scanning direction.50 μm of laser spot diameter, laser
Wavelength 532nm, repetition rate 500KHz, power output 100W, laser scanning speed 500mm/s, scanning times 150 times.Receive
Electron microscope after second laser polishing is as shown in figure 3, to be copolymerized burnt 3-D view as shown in Figure 5.
Step 5. is the same as embodiment 1.
Embodiment 3：
Step 1. is the same as embodiment 1.
Step 2. starts picosecond laser 1 and supporting software systems, sets scanning area 4mm × 15mm, groove width
It it is 250 μm with spacing, groove direction is parallel with blade direction.35 μm, optical maser wavelength 1064nm of laser spot diameter, repetition rate
1000KHz, power output 100W, laser scanning speed 1000mm/s, scanning times 1 time.Lead to protective gas argon in process
Gas 8.
Step 3. is the same as embodiment 1.
Step 4. sets laser scanning region 6mm × 20mm to electricity using pulse width 220ns nanosecoud pulse laser
Knife knife face very low power is polished processing, and groove direction is parallel with nanosecond laser scanning direction.50 μm of laser spot diameter, laser
Wavelength 1064nm, repetition rate 1000KHz, power output 200W, laser scanning speed 1000mm/s, scanning times 1 time.
Step 5. is the same as embodiment 1.
Claims (10)
1. a kind of processing method of electric knife surface laser cutting polishing integral, it is characterised in that comprise the following steps：
Step 1：Metal electric knife sample is taken to be cleaned by ultrasonic with alcohol, dried；
Step 2：Laser scanning region 4mm × 15mm is set to electric knife knife using pulse width 600ps psec optical fiber laser
Face carries out very low power processing；
Step 3：The electric knife machined is cleaned by ultrasonic；
Step 4：Laser scanning region 6mm × 20mm is set to electric knife knife using pulse width 220ns nanosecoud pulse laser
Face very low power region is polished processing；
Step 5：The electric knife machined is cleaned by ultrasonic.
A kind of 2. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
50~250 μm of very low power structure processing, groove width and spacing are carried out in step 2.
A kind of 3. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
Groove direction is parallel with blade direction, the fine and close filling of trench region.
A kind of 4. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
Groove is processed by shot blasting using nanosecond laser in step 4, laser scanning direction is parallel with groove direction, and polishing area causes
Close filling.
A kind of 5. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
The process of step 2 and step 4 leads to protective gas.
A kind of 6. processing method of electric knife surface laser cutting polishing integral according to claim 5, it is characterised in that：
Described protective gas is argon gas.
A kind of 7. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
35 μm of picosecond laser spot diameter in step 2,193~1064nm of wavelength of laser, 10~1000KHz of repetition rate, output work
1~100W of rate.
A kind of 8. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
10~1000mm/s of laser scanning speed during picosecond laser cutting in step 2, processing times 1~200 time.
A kind of 9. processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：
50 μm of nanosecond laser spot diameter in step 4,193~1064nm of wavelength of laser, 10~1000KHz of repetition rate, output work
1~200W of rate.
10. the processing method of electric knife surface laser cutting polishing integral according to claim 1, it is characterised in that：Receive
Second 10~1000mm/s of laser polishing sweep speed in step 4, processing times 1~300 time.
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| CN201710669351.5A CN107363486B (en) | 2017-08-08 | 2017-08-08 | A kind of method of electric knife surface laser cutting polishing integral processing |
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Cited By (6)
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| CN108000147A (en) * | 2017-12-07 | 2018-05-08 | 中国工程物理研究院机械制造工艺研究所 | A kind of laser jet stream composite polishing method and device |
| CN108326442A (en) * | 2018-05-15 | 2018-07-27 | 何龙飞 | A kind of laser carving device |
| CN111230315A (en) * | 2020-01-18 | 2020-06-05 | 温州大学 | Processing device and composite processing technology for special-shaped section complex flow field bipolar plate |
| CN111299840A (en) * | 2020-02-27 | 2020-06-19 | 江苏大学 | Method for preparing echelle grating by matching ultrafast laser direct writing with laser polishing |
| CN111390392A (en) * | 2020-04-03 | 2020-07-10 | 北京航空航天大学 | Laser processing technology for polishing semiconductor material |
| CN114850680A (en) * | 2022-06-17 | 2022-08-05 | 南京农业大学 | Method for preparing micro-nano surface of plastic substrate by picosecond laser |
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| CN111390392A (en) * | 2020-04-03 | 2020-07-10 | 北京航空航天大学 | Laser processing technology for polishing semiconductor material |
| CN114850680A (en) * | 2022-06-17 | 2022-08-05 | 南京农业大学 | Method for preparing micro-nano surface of plastic substrate by picosecond laser |
| CN114850680B (en) * | 2022-06-17 | 2023-10-03 | 南京农业大学 | Method for preparing micro-nano surface of plastic substrate by picosecond laser |
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