CN107854158A - A kind of brain section nerve is cut - Google Patents
A kind of brain section nerve is cut Download PDFInfo
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- CN107854158A CN107854158A CN201711325639.7A CN201711325639A CN107854158A CN 107854158 A CN107854158 A CN 107854158A CN 201711325639 A CN201711325639 A CN 201711325639A CN 107854158 A CN107854158 A CN 107854158A
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- cut
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- adjusting rod
- nerve
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- 210000005036 nerve Anatomy 0.000 title claims abstract description 27
- 210000004556 brain Anatomy 0.000 title abstract description 8
- 239000013536 elastomeric material Substances 0.000 claims abstract description 4
- 238000005242 forging Methods 0.000 claims description 59
- 239000000956 alloy Substances 0.000 claims description 32
- 229910045601 alloy Inorganic materials 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- 230000032683 aging Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229910003271 Ni-Fe Inorganic materials 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 239000006104 solid solution Substances 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 238000011282 treatment Methods 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 210000003739 neck Anatomy 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 206010015037 epilepsy Diseases 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B17/3201—Scissors
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a kind of brain section nerve to cut, and belonging to medical field includes, including：First cuts handle（1）Handle is cut with second（2）, described first, which cuts handle and first, cuts and forms nerve be hinged and cut；Described second cuts handle（2）On cut latch be provided with handle（201）, latch is list structure, and continuous tooth mouth is provided with list structure；Described first is cut being above hinged with an adjusting rod（3）, described adjusting rod one end and first cut be hinged, and the other end is provided with the convex portion that can be stuck in tooth mouth；Described first cut be provided with one being capable of secured adjusted bar（3）Neck（101）, described neck is made up of elastomeric material, middle to be provided with a channel structure, can fix adjusting rod.
Description
Technical field
The present invention relates to field of medical products.
Background technology
Neurosurgery (Neurosurgery) is a branch in surgery, is to perform the operation as primary treatment in surgery
On the basis of means, using the neurosurgery science study method of uniqueness, nerve system of human body is studied, such as brain, spinal cord and surrounding god
Through system, and associated subsidiary body, such as skull, scalp, the isostructural damage of cerebrovascular meninx, inflammation, tumour, abnormal
Shape and some hereditary dysbolisms or dysfunction disease, such as:The cause of disease of the diseases such as epilepsy, Parkinson's, neuralgia and morbidity
Mechanism, and explore new diagnosis, treatment, a high, precision and frontier subject of prevention technique.Neurosurgery is cured mainly because wound is led
The disease of the nervous systems such as the brain of cause, spinal cord, such as cerebral hemorrhage amount of bleeding threat to life, traffic accident cause brain wound, or brain
There is oncothlipsis to need operative treatment etc..
It is frequently necessary to use nerve surgery in neurosurgery and cuts, existing operating scissors mainly passes through two simple shear bodies
Form, clamped among the process cut with the value of hand one so that hand is easily tired.
The content of the invention
It is an object of the invention to：For above-mentioned problem, there is provided a kind of nerve is cut, it is characterised in that including：
First cuts handle and second cuts handle, and described first, which cuts handle and first, cuts and form nerve be hinged and cut；
Described second is cut is provided with latch upper cutting at handle, latch is list structure, and continuous tooth is provided with list structure
Mouthful；
Described first is cut an adjusting rod is above hinged with, and described adjusting rod one end and first are cut being hinged, and the other end is set
There is the convex portion that can be stuck in tooth mouth；Described first is cut being provided with a neck for being capable of secured adjusted bar, described card
Groove is made up of elastomeric material, and centre is provided with a channel structure, can fix adjusting rod.
Nerve of the present invention by latch through that among the process of clamping, can block adjusting rod, further pass through
Adjusting rod is cut to clamp nerve, avoids the fatigue of hand.In the case where not needing secured mode, adjusting rod can be fixed on neck
In, preventer influences operation.
As an improvement, described adjusting rod includes the first adjusting rod, the first adjusting rod and pivoted housing, the first described adjusting rod
Screw thread is equipped with the outer surface of the second adjusting rod, the inwall of described pivoted housing is provided with screw thread, the first adjusting rod and the second regulation
Bar is threadedly coupled with pivoted housing respectively, rotates pivoted housing, and the length of adjusting rod can change.
By adjusting the length of adjusting rod, it can facilitate and the nerve of clamping is cut into release.
Prepared as an improvement, described nerve is cut by Ni-Fe based high-temperature alloys material.
As an improvement, the high-temperature alloy material includes following alloying element：C：0.04-0.05%、Fe：19.0-21.0%、
Cr：19.5-20.5%、Al:0.90-1.05%、Ti：2.65-2.80%、V：0.20-0.30%、Mo：2.0-2.5%、Nb：1.50-
1.70%、Y+Ce：0.046-0.058%、B：0.003-0.006%, surplus are Ni and other impurity.
As an improvement, high-temperature alloy material includes the P and S that mass fraction is less than 0.024%, the high-temperature alloy material is also
Including following alloying element：C：0.047%、Fe：20.3%、Cr：19.9%、Al:0.96%、Ti：2.74%、V：0.25%、Mo：
2.3%、Nb：1.63%、Y+Ce：0.051%、B：0.005%, surplus is Ni and other impurity.
As an improvement, comprise the following steps：
1）Weigh raw material by component percentages, using it is existing smelting high temperature alloy preparation technology, in vaccum sensitive stove in
Melting is carried out at 1500 DEG C, solution pours into alloy casting blank；
2）Alloy casting blank is subjected to removing surface, be subsequently placed in vacuum furnace be heated to 810-820 DEG C and remove alloy casting
The oxide skin on base surface, obtain forging blank, wherein heating rate control is in 120 DEG C/h；
3）Forging blank is continued to be heated to forging temperature to be forged, room temperature is air-cooled to after forging, and be surface-treated；
4）Produced after forge piece after surface treatment is carried out into solid-solution and aging heat treatment.
As an improvement, in step 3）In, forging temperature is 1200-1250 DEG C, time 2-3h, starting forging temperature 1150
DEG C, it is 850 DEG C to stop forging temperature.
As an improvement, after forging blank reaches forging temperature, it will forge blank upsetting pull using forge press and become shape forging
Forging base is formed, wherein, fire time is 4, and forging ratio control need to be carried out 3 times respectively in 6.2-6.5, upsetting pull process.
As an improvement, in step 3）In, forging base is cooled to stop forging temperature after, continue to deliver in forge press upsetting pull and become
Die forging causes certain thickness alloy slab, and fire time is 4, and forging ratio control need to be carried out 3 times respectively in 2.0-2.3, upsetting pull process.
As an improvement, in step 4）In, the detailed process of solid-solution and aging heat treatment is：Solid solubility temperature is 1100-1150 DEG C,
It is incubated 2h, oil cooling；700-750 DEG C of an aging temperature, it is incubated 20-25h, air cooling；Secondary ageing treatment temperature 660-680
DEG C, it is incubated 20-25h, air cooling.
Nerve prepared by material disclosed by the invention cuts that intensity is big, rigidity is big, endurance, among high-temperature sterilization process not
Internal modification, service life length easily occurs.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the schematic diagram of adjusting rod of the present invention；
Marked in figure：1- first cuts handle, 101- necks, and 2- second cuts handle, 201- latches, 3- adjusting rods, the adjusting rods of 301- first,
The adjusting rods of 302- second, 303- pivoted housings.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific embodiment 1：As shown in Figure 1-2, a kind of brain section of the invention nerve is cut, including：First cuts handle is cut in 1 and second
2, described first, which cuts handle and first, cuts and forms nerve be hinged and cut；Described second is cut is provided with latch cutting on 2 at handle
201, latch is list structure, and continuous tooth mouth is provided with list structure；Described first is cut being above hinged with a regulation
Bar 3, described adjusting rod one end and first are cut being hinged, and the other end is provided with the convex portion that can be stuck in tooth mouth.Described first
Cut a neck 101 for being capable of secured adjusted bar 3 is provided with, described neck is made up of elastomeric material, and centre is provided with one
Channel structure, adjusting rod can be fixed.
Described adjusting rod 3 includes the first adjusting rod 301, the first adjusting rod 302 and pivoted housing 303, the described first regulation
The outer surface of bar and the second adjusting rod is equipped with screw thread, and the inwall of described pivoted housing is provided with screw thread, and the first adjusting rod and second are adjusted
Pole is threadedly coupled with pivoted housing respectively, rotates pivoted housing, and the length of adjusting rod can change.
Specific embodiment 2：A kind of Ni-Fe based high-temperature alloys material, by mass percentage, the high-temperature alloy material bag
Include following alloying element：C：0.04-0.05%、Fe：19.0-21.0%、Cr：19.5-20.5%、Al:0.90-1.05%、Ti：
2.65-2.80%、V：0.20-0.30%、Mo：2.0-2.5%、Nb：1.50-1.70%、Y+Ce：0.046-0.058%、B：0.003-
0.006%, surplus is Ni and other impurity.Wherein, high-temperature alloy material also includes the P and S that mass fraction is less than 0.024%.
The preparation method of above-mentioned Ni-Fe based high-temperature alloy materials, comprises the following steps：
1）Weigh raw material by component percentages, using it is existing smelting high temperature alloy preparation technology, in vaccum sensitive stove in
Melting is carried out at 1500 DEG C, solution pours into alloy casting blank；
2）Alloy casting blank is subjected to removing surface, be subsequently placed in vacuum furnace be heated to 810-820 DEG C and remove alloy casting
The oxide skin on base surface, obtain forging blank, wherein heating rate control is in 120 DEG C/h；
3）Forging blank is continued to be heated to forging temperature to be forged, room temperature is air-cooled to after forging, and be surface-treated；
4）Produced after forge piece after surface treatment is carried out into solid-solution and aging heat treatment.
In step 3）In, forging temperature is 1200-1250 DEG C, time 2-3h, and starting forging temperature is 1150 DEG C, stops forging temperature
For 850 DEG C.Starting forging temperature and the selection for stopping forging temperature are extremely important, in addition to according to the selection of conventional forging temperature requirement, necessarily
It is noted that the width range of forging temperature and the terminal of forging temperature, the terminal of forging temperature is too high, and forging blank is not easy
The fine and closely woven tissue of crystal grain is obtained, mechanical property is poor, and the terminal of forging temperature is too low, then phase transformation crackle easily occurs, in this hair
In bright, forging temperature be 1200-1250 DEG C, starting forging temperature be 1150 DEG C, stop forge temperature be 850 DEG C when, forging blank be easy to get to
Satisfactory forging.
In order to obtain the forging base that crack defect is few, crystal grain is fine and closely woven and is evenly distributed, after forging blank reaches forging temperature,
Blank upsetting pull, which will be forged, using forge press becomes shape forging formation forging base, wherein, fire time is 4, and forging ratio control is in 6.2-
6.5, upsetting pull process need to be carried out 3 times respectively.
Further, in step 3）In, forging base is cooled to stop forging temperature after, continue to deliver in forge press upsetting pull and become
Die forging causes certain thickness alloy slab, and fire time is 4, and forging ratio control need to be carried out 3 times respectively in 2.0-2.3, upsetting pull process, with
Final getable alloy slab metallographic structure is more refined, be more evenly distributed, the defects of gentle hole clip of flawless is miscellaneous is present.
Further, in step 4）In, the detailed process of solid-solution and aging heat treatment is：Solid solubility temperature is 1100-1150 DEG C,
It is incubated 2h, oil cooling；700-750 DEG C of an aging temperature, it is incubated 20-25h, air cooling；Secondary ageing treatment temperature 660-680
DEG C, it is incubated 20-25h, air cooling.
In order to which the present invention is better described, table 1 lists section Example：
The Ni-Fe based high-temperature alloys material composi of table 1 and content（Impurity is omitted herein）
The main performance of Ni-Fe based high-temperature alloys material is as shown in table 2 made from above-described embodiment：
The main performance of the embodiment 1-5 final alloy materials of table 2
Note：1st, toughness is determined by Charpy impact machine tester；
2nd, etching extent uses 65% nitric acid corrosion tests, that is, is put into sample in 65% salpeter solution of boiling when testing continuous
48h is a cycle, in totally 5 cycles, finally calculates average corrosion rate, wherein, sample is in its cooling at 750-850 DEG C
To 100 DEG C or so rear experiments.
It can be obtained by table 2, at 850 DEG C, the tensile strength of Ni-Fe based high-temperature alloy materials of the invention reaches
1270N/mm2, yield strength reaches 1030 N/mm2, toughness reaches 12.1 J/cm2, the rate of corrosion minimum 0.031 mm/ months.
Claims (10)
1. a kind of nerve is cut, it is characterised in that including：
First cuts handle（1）Handle is cut with second（2）, described first, which cuts handle and first, cuts and forms nerve be hinged and cut；
Described second cuts handle（2）On cut latch be provided with handle（201）, latch is list structure, is provided with list structure
Continuous tooth mouth；
Described first is cut being above hinged with an adjusting rod（3）, described adjusting rod one end and first is cut be hinged, the other end
Provided with the convex portion that can be stuck in tooth mouth；
Described first cut be provided with one being capable of secured adjusted bar（3）Neck（101）, described neck is by elastomeric material
It is made, centre is provided with a channel structure, can fix adjusting rod.
2. nerve according to claim 1 is cut, it is characterised in that described adjusting rod（3）Including the first adjusting rod
（301）, the first adjusting rod（302）And pivoted housing（303）, the first described adjusting rod and the outer surface of the second adjusting rod are equipped with spiral shell
Line, the inwall of described pivoted housing are provided with screw thread, and the first adjusting rod and the second adjusting rod are threadedly coupled with pivoted housing, rotate and turn respectively
Set, the length of adjusting rod can change.
3. the nerve according to claim any one of 1-2 is cut, it is characterised in that described nerve is cut by Ni-Fe base high temperature
It is prepared by alloy material.
4. nerve according to claim 3 is cut, it is characterised in that characterized in that, the high-temperature alloy material include with
Lower alloying element：C：0.04-0.05%、Fe：19.0-21.0%、Cr：19.5-20.5%、Al:0.90-1.05%、Ti：2.65-
2.80%、V：0.20-0.30%、Mo：2.0-2.5%、Nb：1.50-1.70%、Y+Ce：0.046-0.058%、B：0.003-
0.006%, surplus is Ni and other impurity.
5. nerve as claimed in claim 4 is cut, it is characterised in that high-temperature alloy material includes mass fraction and is less than 0.024%
P and S, the high-temperature alloy material also include following alloying element：C：0.047%、Fe：20.3%、Cr：19.9%、Al:0.96%、
Ti：2.74%、V：0.25%、Mo：2.3%、Nb：1.63%、Y+Ce：0.051%、B：0.005%, surplus is Ni and other impurity.
6. nerve as claimed in claim 5 is cut, it is characterised in that is comprised the following steps：
1）Weigh raw material by component percentages, using it is existing smelting high temperature alloy preparation technology, in vaccum sensitive stove in
Melting is carried out at 1500 DEG C, solution pours into alloy casting blank；
2）Alloy casting blank is subjected to removing surface, be subsequently placed in vacuum furnace be heated to 810-820 DEG C and remove alloy casting
The oxide skin on base surface, obtain forging blank, wherein heating rate control is in 120 DEG C/h；
3）Forging blank is continued to be heated to forging temperature to be forged, room temperature is air-cooled to after forging, and be surface-treated；
4）Produced after forge piece after surface treatment is carried out into solid-solution and aging heat treatment.
7. nerve as claimed in claim 6 is cut, it is characterised in that in step 3）In, forging temperature is 1200-1250 DEG C, when
Between be 2-3h, starting forging temperature is 1150 DEG C, and it is 850 DEG C to stop forging temperature.
8. nerve as claimed in claim 7 is cut, it is characterised in that after forging blank reaches forging temperature, is forged soon using oil pressure
Machine will forge blank upsetting pull and become shape forging formation forging base, wherein, fire time is 4, and forging ratio controls to be needed in 6.2-6.5, upsetting pull process
Carry out 3 times respectively.
9. nerve as claimed in claim 8 is cut, it is characterised in that in step 3）In, forging base be cooled to stop forge temperature after, after
Continuous to deliver to upsetting pull deformation in forge press and be forged into certain thickness alloy slab, fire time is 4, forging ratio control in 2.0-2.3,
Upsetting pull process need to be carried out 3 times respectively.
10. nerve as claimed in claim 9 is cut, it is characterised in that in step 4）In, the detailed process of solid-solution and aging heat treatment
For：Solid solubility temperature is 1100-1150 DEG C, is incubated 2h, oil cooling；700-750 DEG C of an aging temperature, 20-25h is incubated, it is empty
It is cold；660-680 DEG C of secondary ageing treatment temperature, it is incubated 20-25h, air cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325639.7A CN107854158A (en) | 2017-12-13 | 2017-12-13 | A kind of brain section nerve is cut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711325639.7A CN107854158A (en) | 2017-12-13 | 2017-12-13 | A kind of brain section nerve is cut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107854158A true CN107854158A (en) | 2018-03-30 |
Family
ID=61706376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711325639.7A Withdrawn CN107854158A (en) | 2017-12-13 | 2017-12-13 | A kind of brain section nerve is cut |
Country Status (1)
| Country | Link |
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| CN (1) | CN107854158A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3972752A (en) * | 1971-09-28 | 1976-08-03 | Creusot-Loire | Alloys having a nickel-iron-chromium base for structural hardening by thermal treatment |
| US5674244A (en) * | 1991-07-09 | 1997-10-07 | Synthes (U.S.A.) | Locking device on a pliers-shaped tool |
| CN102171373A (en) * | 2008-10-02 | 2011-08-31 | 住友金属工业株式会社 | Ni-based heat-resistant alloy |
| CN104921765A (en) * | 2015-05-28 | 2015-09-23 | 苏州瑞华医院有限公司 | Microsurgical point-spreading forceps |
| CN204723138U (en) * | 2015-04-13 | 2015-10-28 | 无锡市第二人民医院 | A kind of pin hole shooting Minimally Invasive Surgery pincers |
| CN106521243A (en) * | 2016-12-05 | 2017-03-22 | 四川六合锻造股份有限公司 | Ni-Cr-Mo-Nb-Al-Ti series high temperature alloy material, and preparation method and application thereof |
-
2017
- 2017-12-13 CN CN201711325639.7A patent/CN107854158A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3972752A (en) * | 1971-09-28 | 1976-08-03 | Creusot-Loire | Alloys having a nickel-iron-chromium base for structural hardening by thermal treatment |
| US5674244A (en) * | 1991-07-09 | 1997-10-07 | Synthes (U.S.A.) | Locking device on a pliers-shaped tool |
| CN102171373A (en) * | 2008-10-02 | 2011-08-31 | 住友金属工业株式会社 | Ni-based heat-resistant alloy |
| CN204723138U (en) * | 2015-04-13 | 2015-10-28 | 无锡市第二人民医院 | A kind of pin hole shooting Minimally Invasive Surgery pincers |
| CN104921765A (en) * | 2015-05-28 | 2015-09-23 | 苏州瑞华医院有限公司 | Microsurgical point-spreading forceps |
| CN106521243A (en) * | 2016-12-05 | 2017-03-22 | 四川六合锻造股份有限公司 | Ni-Cr-Mo-Nb-Al-Ti series high temperature alloy material, and preparation method and application thereof |
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