CN105195984B - A kind of Painless type drawing-in type medical needle and its production technology - Google Patents
A kind of Painless type drawing-in type medical needle and its production technology Download PDFInfo
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- CN105195984B CN105195984B CN201510575885.2A CN201510575885A CN105195984B CN 105195984 B CN105195984 B CN 105195984B CN 201510575885 A CN201510575885 A CN 201510575885A CN 105195984 B CN105195984 B CN 105195984B
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- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 238000005516 engineering process Methods 0.000 title abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000010926 purge Methods 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims abstract description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 11
- 229910052786 argon Inorganic materials 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims description 3
- 235000014413 iron hydroxide Nutrition 0.000 claims description 3
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000001727 in vivo Methods 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 11
- 238000003698 laser cutting Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000007443 liposuction Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- NFIYTPYOYDDLGO-UHFFFAOYSA-N phosphoric acid;sodium Chemical compound [Na].OP(O)(O)=O NFIYTPYOYDDLGO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of Painless type drawing-in type medical needle and its production technology, the front end of drawing-in type medical needle is welded with to the syringe needle of smooth circular arc by welding procedure, syringe needle is set not stab patient in vivo, cause inevitable secondary injury, and the syringe needle of smooth circular arc can also substantially reduce the pain of patient in vivo, syringe needle is mellow and full, it is safer compared to Tip-headed needle, lateral opening, injectable media is evenly, injection effect is more preferable, and using the follow-up hydraulic pressure of TIG weld cooperation and air pressure purging polishing, make the syringe needle being welded on tiny needle tubing firmly smooth, the present invention passes through TIG weld technique, melt workpiece, form specific molten bath, tiny syringe needle pin needle tubing is set to be combined together well, it is not readily separated and comes off, and needle tubing will not be caused in welding process to damage deformation, and the black film of the graduation mark generation of chemical attack is solid, and because treatment temperature is low, surface attractive in appearance can be kept.
Description
Technical field
The present invention relates to medical equipment technical field, and in particular to a kind of Painless type drawing-in type medical needle and its production work
Skill.
Background technology
Normal injection pin type syringe needle being used existing medically drawing-in type medical needle, its syringe needle is pointed, to suffering from more
When person carries out the beautifying medicals such as liposuction, because syringe needle needs to be located in vivo for a long time, pointed needle point easily stabs trouble in vivo
Person, causes inevitable secondary injury, and pointed needle point can also make patient pain's sense intensification in vivo.
The content of the invention
In order to solve the deficiencies in the prior art, of the invention provides a kind of Painless type drawing-in type medical needle and its production
Technique.
The technical solution that the present invention is used is：A kind of Painless type drawing-in type medical needle, including needle body, it is described
Needle body is hollow cylinder, and described needle body side is provided with the top of pin hole, described needle body provided with the syringe needle with human contact, institute
The syringe needle stated is smooth curved surface, and being also uniformly provided with described needle body some is used to indicate needle body insertion human depth's
Graduation mark.
Described needle body is made of 304 stainless steels.
A kind of production technology of Painless type drawing-in type medical needle, comprises the following steps：
（1）Needle tubing is first prepared, then in needle tubing side laser cutting needle outlet；
（2）Syringe needle and needle tubing will be subjected to TIG weld again, using the power supply of vertical external characteristics, protective gas is argon gas, pure
Spend for 99.99%, when welding current is 50-150A, argon flow amount is 8-10L/min, when electric current is 150-250A, argon flow amount
For 12-15L/min, the length that tungsten electrode is protruded from gas nozzle is 4-5mm, and nozzle to the distance worked is no more than 15mm, welding
Arc length is 1-3mm, and tungsten electrode center line keeps angle to be 80-85 ° with weld workpiece, filler wire and workpiece surface angle
For 10 °；
（3）After the completion of welding, then with hairbrush the syringe needle after the completion of welding is cleaned, using less than 400 °C hydraulic pressure and
Air pressure purging polishing, described hydraulic pressure and the buffer brake of air pressure are 0.4~0. 5MPa, until syringe needle and needle tubing junction table
Face Glabrous thorn；
（4）Alkaline low-temperature oxidation processes formation graduation mark will be carried out on the needle body after the completion of purging again:It will first be beaten on needle body
Sandblasting is ground, then is removed cured 10 minutes at 80-95 DEG C, then by needle body oil removing 5-10 minutes, is then first washed, then uses acid solution soak at room temperature
Pickling in 3-5 minutes, described acid solution is 50% analysis pure hydrochloric acid, then washes and wash away acid solution, then with sodium hydroxide 15%, phosphoric acid
Sodium 3%, natrium nitrosum 2%, lead peroxide 2%, iron hydroxide 0.1%, surplus are handled for the solution oxide of water, and treatment temperature is 120-
128 DEG C, continue 2-5 minutes, thoroughly wash 10-15 minutes again, wash away the solution of remained on surface, then dry, place to be oxidized
The needle body surface of reason is formed after oxide-film closed protective, is dried again；
（5）The needle body that oxidation processes are finished is purged using less than 400 °C hydraulic pressure and air pressure again, and described hydraulic pressure is gentle
The buffer brake of pressure is 0.4~0. 5MPa and then dehydrated, and produces described Painless type drawing-in type medical needle.
The beneficial effects of the invention are as follows：The invention provides a kind of Painless type drawing-in type medical needle and its production technology,
The front end of drawing-in type medical needle is welded with to the syringe needle of smooth circular arc by welding procedure, syringe needle is not stabbed in vivo
Patient, causes inevitable secondary injury, and the syringe needle of smooth circular arc can also substantially reduce the pain of patient in vivo,
Syringe needle is mellow and full, safer compared to Tip-headed needle, lateral opening, and evenly, injection effect more preferably, and is set injectable media on needle body
Put graduation mark, for indicating that needle body inserts human depth, more it is accurate precisely, and using TIG weld coordinate follow-up hydraulic pressure with
Air pressure purging polishing, makes the syringe needle being welded on tiny needle tubing firmly smooth, and the present invention melts workpiece by TIG weld technique
Change, form specific molten bath, tiny syringe needle pin needle tubing is combined together well, be not readily separated and come off, and welded
Needle tubing will not be caused to damage in journey and deformed, and the black film of the graduation mark of chemical attack generation is solid, and due to treatment temperature
It is low, surface attractive in appearance can be kept.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is enlarged drawing at A of the present invention.
1- needle bodies in figure, 2- pin holes, 3- syringe needles, 4- graduation marks.
Embodiment
The present invention is further described in conjunction with Fig. 1, Fig. 2, a kind of Painless type drawing-in type medical needle, including needle body
1, described needle body 1 is made of 304 stainless steels.Described needle body 1 is hollow cylinder, and the described side of needle body 1 is provided with pin
Hole 2, described pin hole 2 is formed using laser cutting.The described top of needle body 1 is provided with the syringe needle 3 with human contact, described pin
First 3 be smooth curved surface, and described syringe needle 3 is with needle body 1 by being welded to connect.If being also uniformly provided with described needle body 1
Do for indicating that needle body 1 inserts the graduation mark 4 of human depth.Described graduation mark 4 is etched in the table of needle body 1 by chemical attack
Face.The front end of drawing-in type medical needle is welded with the syringe needle 3 of smooth circular arc by welding procedure by the present invention, syringe needle 3 is existed
Patient will not be stabbed in vivo, cause inevitable secondary injury, and the syringe needle 3 of smooth circular arc be able to can also be substantially reduced in vivo
The pain of patient, syringe needle 3 is mellow and full, safer compared to Tip-headed needle, lateral opening, and evenly, injection effect is more preferable for injectable media,
And graduation mark is set on needle body, it is more accurate accurate for indicating that needle body inserts human depth.
A kind of production technology of Painless type drawing-in type medical needle, comprises the following steps：
（1）Needle tubing is first prepared, then in the needle tubing side laser cutting needle outlet of preparation；
（2）Syringe needle and needle tubing will be subjected to TIG weld again, using the power supply of vertical external characteristics, positive polarity is used during direct current
（Welding wire connects negative pole）, protective gas is argon gas, and purity is 99.99%, when welding current be 50 ~ 150A when, argon flow amount be 8 ~
10L/min, when electric current is 150 ~ 250A, argon flow amount is 12 ~ 15L/min.The length that tungsten electrode is protruded from gas nozzle, with 4 ~
5mm is preferred, and is 2 ~ 3mm in the place of the shieldings such as fillet welding difference, is 5 ~ 6mm, nozzle to the distance worked in the deep place of fluting
15mm is usually no more than, to prevent the appearance of weld blowhole, welding position must be cleaned out if any iron rust, greasy dirt etc..Welding
Arc length, during welding ordinary steel, is preferred with 2 ~ 4mm, and during soldering stainless steel, is preferred with 1 ~ 3mm, and long then protecting effect is not
Good, during docking bottoming, to prevent the back side of bottom welding bead to be oxidized, the back side is also required to implement gas shield, to make argon gas fine
Welding pool is protected on ground, and is easy to welding to operate, and tungsten electrode center line should typically keep 80 ~ 85 ° of angles, filling weldering with weld workpiece
Silk should be small as much as possible with workpiece surface angle, generally 10 ° or so, windproof with taking a breath.There is the place of wind, business please take backstop
Measure, and should then take appropriate ventilation measure indoors；
（3）After the completion of welding, then with hairbrush the syringe needle after the completion of welding is cleaned, using less than 400 °C hydraulic pressure and
Air pressure purging polishing, described hydraulic pressure and the buffer brake of air pressure are 0.4~0. 5MPa, until syringe needle and needle tubing junction table
Face Glabrous thorn；
（4）Alkaline low-temperature oxidation processes formation graduation mark will be carried out on the needle body after the completion of purging again:It is first that needle body is enterprising
Row polishing sandblasting, then removed cured 10 minutes under the conditions of 80-95 DEG C, then by stainless steel needle body oil removing 5-10 minutes, then first wash,
Use the pickling in 3-5 minute of acid solution soak at room temperature again, described acid solution is 50% analysis pure hydrochloric acid, then washes and washes away acid solution, Ran Houyong
Sodium hydroxide 15%, sodium phosphate 3%, natrium nitrosum 2%, lead peroxide 2%, iron hydroxide 0.1%, surplus are at the solution oxide of water
Reason, treatment temperature is 120-128 DEG C, continues 2-5 minutes, thoroughly washes 10-15 minutes again, washes away the solution of remained on surface,
Then dry, the needle body surface of processing to be oxidized is formed after oxide-film closed protective, is dried again, the black film of this method generation
It is solid, because treatment temperature is low, it can keep attractive in appearance.
（5）The needle body that oxidation processes are finished is purged using less than 400 °C hydraulic pressure and air pressure again, and described hydraulic pressure is gentle
The buffer brake of pressure is 0.4~0. 5MPa and then dehydrated, and produces described Painless type drawing-in type medical needle.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of Painless type drawing-in type medical needle, including needle body（1）, described needle body（1）For hollow cylinder, its feature exists
In described needle body（1）Side is provided with pin hole（2）, described needle body（1）Top is provided with the syringe needle with human contact（3）, it is described
Syringe needle（3）For smooth curved surface, described needle body（1）On be also uniformly provided with it is some be used for indicate needle body（1）Insert people
The graduation mark of body depth（4）, prepared by following steps：（1）First prepare needle tubing, then in needle tubing side with being cut by laser out pin
Hole；
（2）Syringe needle and needle tubing are subjected to TIG weld again, using the power supply of vertical external characteristics, protective gas is argon gas, and purity is
99.99%, when welding current is 50-150A, argon flow amount is 8-10L/min, and when electric current is 150-250A, argon flow amount is 12-
15L/min, the length that tungsten electrode is protruded from gas nozzle is 4-5mm, and nozzle to the distance worked is no more than 15mm, and welding arc is long
Spend for 1-3mm, tungsten electrode center line keeps angle to be 80-85 ° with weld workpiece, and filler wire and workpiece surface angle are 10 °；
（3）After the completion of welding, then with hairbrush the syringe needle after the completion of welding is cleaned, using less than 400 °C hydraulic pressure and air pressure
Purging polishing, described hydraulic pressure and the buffer brake of air pressure are 0.4~0. 5MPa, until syringe needle and needle tubing junction surface light
Sliding impulse- free robustness；
（4）Alkaline low-temperature oxidation processes formation graduation mark will be carried out on the needle body after the completion of purging again:It will first polish and spray on needle body
Sand, then removed cured 10 minutes at 80-95 DEG C, then by needle body oil removing 5-10 minutes, is then first washed, then with acid solution soak at room temperature 3-5
Minute pickling, described acid solution is 50% analysis pure hydrochloric acid, then washes and wash away acid solution, then with sodium hydroxide 15%, sodium phosphate
3%th, natrium nitrosum 2%, lead peroxide 2%, iron hydroxide 0.1%, surplus are the solution oxide processing that water is configured, and treatment temperature is
120-128 DEG C, continue 2-5 minutes, thoroughly wash 10-15 minutes again, wash away the oxidation solution of remained on surface, then dry,
The needle body surface of processing to be oxidized is formed after oxide-film closed protective, is dried again；
（5）The needle body that oxidation processes are finished is purged using less than 400 °C hydraulic pressure and air pressure again, described hydraulic pressure and air pressure
Buffer brake is 0.4~0. 5MPa and then dehydrated, and produces described Painless type drawing-in type medical needle.
2. a kind of Painless type drawing-in type medical needle according to claim 1, it is characterised in that described needle body（1）Adopt
It is made of 304 stainless steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510575885.2A CN105195984B (en) | 2015-09-11 | 2015-09-11 | A kind of Painless type drawing-in type medical needle and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510575885.2A CN105195984B (en) | 2015-09-11 | 2015-09-11 | A kind of Painless type drawing-in type medical needle and its production technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105195984A CN105195984A (en) | 2015-12-30 |
| CN105195984B true CN105195984B (en) | 2017-09-29 |
Family
ID=54944112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510575885.2A Active CN105195984B (en) | 2015-09-11 | 2015-09-11 | A kind of Painless type drawing-in type medical needle and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105195984B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803185A (en) * | 2020-07-16 | 2020-10-23 | 中国人民解放军总医院第八医学中心 | Facial liposuction device capable of controlling and displaying suction position |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119213U (en) * | 1992-04-19 | 1992-10-21 | 于教国 | Needle for injection and suction of cataract |
| JPH0928758A (en) * | 1995-07-18 | 1997-02-04 | Seirin Kasei Kk | Method for fixing needle and needle tube and needle with needle tube |
| CN2355727Y (en) * | 1998-12-05 | 1999-12-29 | 曹孟君 | Medical micro traumatic syringe needle for soft tissue |
| CN2832066Y (en) * | 2005-08-29 | 2006-11-01 | 李金阁 | A puncture needle for cystostomy |
| CN203915655U (en) * | 2014-06-19 | 2014-11-05 | 温州市高万利医疗器材有限公司 | Disposable side opening intravenous needle |
| CN204134019U (en) * | 2014-03-31 | 2015-02-04 | 中国人民解放军第二军医大学 | Detect the passivity syringe needle that the permanent vascular access of chronic sustain discharge period is unobstructed |
| CN204951749U (en) * | 2015-09-11 | 2016-01-13 | 温州科技职业学院 | Painless type suction formula needle for medical treatment |
-
2015
- 2015-09-11 CN CN201510575885.2A patent/CN105195984B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119213U (en) * | 1992-04-19 | 1992-10-21 | 于教国 | Needle for injection and suction of cataract |
| JPH0928758A (en) * | 1995-07-18 | 1997-02-04 | Seirin Kasei Kk | Method for fixing needle and needle tube and needle with needle tube |
| CN2355727Y (en) * | 1998-12-05 | 1999-12-29 | 曹孟君 | Medical micro traumatic syringe needle for soft tissue |
| CN2832066Y (en) * | 2005-08-29 | 2006-11-01 | 李金阁 | A puncture needle for cystostomy |
| CN204134019U (en) * | 2014-03-31 | 2015-02-04 | 中国人民解放军第二军医大学 | Detect the passivity syringe needle that the permanent vascular access of chronic sustain discharge period is unobstructed |
| CN203915655U (en) * | 2014-06-19 | 2014-11-05 | 温州市高万利医疗器材有限公司 | Disposable side opening intravenous needle |
| CN204951749U (en) * | 2015-09-11 | 2016-01-13 | 温州科技职业学院 | Painless type suction formula needle for medical treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105195984A (en) | 2015-12-30 |
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