CN106175902B - The outside miniature locking steel plate of veins of tarsal sinus approach before astragalus - Google Patents

The outside miniature locking steel plate of veins of tarsal sinus approach before astragalus Download PDF

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CN106175902B
CN106175902B CN201610523464.XA CN201610523464A CN106175902B CN 106175902 B CN106175902 B CN 106175902B CN 201610523464 A CN201610523464 A CN 201610523464A CN 106175902 B CN106175902 B CN 106175902B
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noumenon
astragalus
veins
steel plate
ontology
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CN106175902A (en
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崔永锋
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/10—Macromolecular materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L31/16—Biologically active materials, e.g. therapeutic substances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526—Methods of manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564—Methods for bone or joint treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
    • A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2420/00—Materials or methods for coatings medical devices
    • A61L2420/06—Coatings containing a mixture of two or more compounds

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Abstract

The present invention discloses the outside miniature locking steel plate of veins of tarsal sinus approach before a kind of astragalus, including lateral the first noumenon and the second longitudinal ontology, second ontology is connected to the end of the first noumenon and the first noumenon is integrally formed, and the first noumenon and the second ontology are equipped with lock hole, and locking bore dia is 3.5mm；The first noumenon length is 2~3.5cm, and the second body length is 1~2.3cm, and thickness is 2.0-2.5mm, and width is 1.0-1.5cm.Preceding outside veins of tarsal sinus approach can carry out reset or bone grafting to articular surface bone block under direct-view, and damage to astragalus blood supply small.Ankle miniature steel plate is placed in the outer lower side of astragalus in veins of tarsal sinus, reduces the influence to joint motion and blood supply as far as possible, the present invention is suitable for Hawkins parting II, III, IV type and Sneppen parting II, IV, V-type fracture of talus.

Description

The outside miniature locking steel plate of veins of tarsal sinus approach before astragalus
Technical field
The present invention relates to a kind of medical instruments, more particularly, to the outside miniature locking steel of veins of tarsal sinus approach before a kind of astragalus Plate belongs to Orthopeadic Surgery wound field internal fixation steel plate for fracture series.
Background technique
Astragalus is located at ankle and foot, is one piece of important bone structure of ankle and foot, unique structure, and entire weight is passed via astragalus It leads, load weight, blood supply is poor.Astragalus does not have muscle attachment, there is 7 articular surfaces and 10 ligament attachments, and blood supply is mainly derived from Ligament attachment point and vasa vasorum, astragalus blood supply schematic diagram as shown in Figure 1 and Figure 2.Referring to Fig. 3, when astragalus is fractured, especially When it merges dislocation of talus, blood supply is destroyed, and easily leads to nonunion, pseudarthrosis formation and talus necrosis.Displacement Fracture of talus necrosis incidence reach 42%, the fracture necrosis rate for merging subtalar joint dislocation reaches 91%.Therefore, astragalus bone The treatment of folding becomes clinical difficult and complicated illness.
Fracture of talus treatment is characterized by anatomical reduction, rebuilds articular surface, strong fixation, this is to reduce necrosis rate, subtract The important measures of few sequelae.Combined approach fixed sclerite in outside in front side, rear side or front is mostly used in clinical and document, But because the visual field limits, articular surface can not be resetted, generally require to expand notch, or even need malleolus could very well Exposure increases the risk of damage blood supply, loses the advantage of mini-incision.
The fixed form of mainstream mainly uses lag screw, Kirschner wire, steel plate at present.As shown in Fig. 4 A, 4B, lag screw Longitudinal pressing is carried out to astragalus, but the fracture crushed to neck or articular surface is then not suitable for, and easily causes astragalus cripetura and articular surface Out-of-flatness, therefore it is only applicable to Fracture Simple；Kirschner wire fixation intensity difference is seldom used alone；Shown in Fig. 5 A, 5B, steel plate is more Using 1/3 tubular, reconstruction plate, ankle miniature steel plate, the above two shapes do not meet Tail shape, such as using manual bending, then High to bending skill requirement, and reduce the original intensity of steel plate, the latter is then too soft, and intensity is far from meeting astragalus Mechanics demand.
Summary of the invention
The technical problem to be solved in the present invention is that providing one kind for fracture of talus open reduction and Kirschner wire fixation, indication is Outside veins of tarsal sinus enters before Hawkins parting II, III, IV type and Sneppen parting II, IV, V-type crush the astragalus of fracture of talus The miniature locking steel plate in road.
To solve the above problems, the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus of the invention, including lateral the One ontology and the second longitudinal ontology, the second ontology is connected to the end of the first noumenon and the first noumenon is integrally formed, first Body and the second ontology are equipped with lock hole A3, and locking bore dia is 3.5mm；The first noumenon length is 2~3.5cm, the second ontology Length is 1~2.3cm, and thickness is 2.0-2.5mm, and width is 1.0-1.5cm.
Preferably, projection of second ontology in the first noumenon plane in the miniature locking steel plate of veins of tarsal sinus approach of outside before astragalus There is the angle of 40-60 degree with the first noumenon in interconnecting piece, plane locating for plane locating for the second ontology and the first noumenon has 10- 25 degree of angle,
Preferably, the first noumenon and the second ontology use titanium alloy in the miniature locking steel plate of veins of tarsal sinus approach of outside before astragalus Material, the wherein mass percentage content of alloying element are as follows: Zn 1-6%, Si 0.4-5%, Mn 0.06-0.8%, Zr 0.2- 1%, Sn 0.5-4.7%, Sr 0.5-5%, rare earth element 0.2-3%, Hf 1.45-1.52%, Co 0.3-1.1%, Ni 0.03-0.4%, methyl propanediol 0.5-2.3%, remaining is titanium.
Preferably, the first noumenon and the second ontology are additionally provided with antibacterial in the miniature locking steel plate of veins of tarsal sinus approach of outside before astragalus Layer, the antibiotic layer are made of the alkyl silane with functional group, chondroitin sulfate, the acrylic resin with activating carboxy acid's group Mixture covering have anti-microbial property nano-metal particles assemble constitute.
The invention further relates to the methods for preparing the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus, comprising: will contain alloy The material of element, which is put under vacuum conditions in smelting furnace, is heated to molten condition as aluminium alloy；Inert gas, which is added, to be made in smelting furnace Air pressure reaches 10 atmospheric pressure；It keeps heating and stirs aluminium alloy 15min；Slag former slag making is added simultaneously in an inert atmosphere Deslagging；Aluminium alloy is poured into mold and is cooled to flat sheet with holes；After plate is heated to 380-420 DEG C on press machine Punch forming；It polishes marginal portion；Cleaning is cleaned in the water that temperature is 100 DEG C, and uses ultrasonic oscillation, ultrasonic wave Frequency is 25kHz, scavenging period 2~5 minutes, spray antimicrobial layer in an aseptic environment.
Preferably, prepare before astragalus that press machine includes rack, bottom in the method for the outside miniature locking steel plate of veins of tarsal sinus approach Seat, rotating mechanism, punch assembly, wherein pedestal is set in rack, and rotating mechanism is installed on pedestal；It is equipped on rotating mechanism more A mold, flat sheet are placed in mold, and rotating mechanism is connected to pedestal by guide rail slide, make mold can be above pedestal Punch assembly rotation, rotating mechanism are additionally provided with velocity measurement mechanisms；Punch assembly is hydraulic package, and hydraulic package can move up and down, liquid Pressure component is connect by hydraulic pump with rack, and hydraulic pump drives hydraulic package horizontal movement, makes punch assembly in up and down motion It can be moved in the process with constant level, move punch assembly and mold level of synchronization when punching press；Press machine further includes control machine Structure, control mechanism include programmable logic controller (PLC) PLC, control panel, servo-driver；Press machine further includes material fetching mechanism, The flat sheet for completing punching press is taken out out of mold.
Triangle artery and arteria dorsalis pedis cervical branch of the blood supply of astragalus mainly from vola instep pipe artery, inside, and preceding outside Astragalus sinus artery only supply the region 1/8-1/4 on the outside of body of talus, therefore the approach blood supply is damaged it is small.Preceding outside veins of tarsal sinus Approach can carry out reset or bone grafting to articular surface bone block under direct-view.Ankle miniature steel plate is placed in astragalus in veins of tarsal sinus Outer lower side reduces the influence to joint motion and blood supply as far as possible, is suitable for Hawkins parting II, III, IV type and Sneppen Parting II, IV, V-type fracture of talus.
The present invention: 1) status for being used to fix fracture of talus without Suitable anatomical shape steel plate at present, locking of the invention are solved Steel plate uses anatomical shape, reduces the interference to the biological nature of astragalus and surrounding tissue；2) locking steel plate uses lock hole, with Supporting structure increases a possibility that fixed to comminuted fracture, increases fixing intensity；3) Anatomicapproach used herein, energy It is enough preferably to protect blood supply, be conducive to the reset of comminuted fracture, it is difficult, fixed to solve the reset of astragalus comminuted fracture to a certain extent Difficult problem, it is possible to reduce talus necrosis rate, bone nonunion and osteoarthritis incidence.
Detailed description of the invention
Fig. 1 is astragalus dorsal surface structure and blood supply schematic diagram.
Fig. 2 is astragalus medial surface structure and blood supply schematic diagram.
Fig. 3 is astragalus and fracture of talus schematic diagram.
Fig. 4 A, 4B are the schematic diagrames that fracture of talus uses lag screw fixed form.
Fig. 5 A, 5B are the schematic diagrames that fracture of talus adds screw fixation method using steel plate.
Fig. 6 is the schematic diagram that reset or bone grafting are carried out using preceding outside veins of tarsal sinus approach.
Fig. 7 is the schematic diagram of the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus of the present invention.
Fig. 8 is another angle schematic diagram of the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus of the present invention.
Fig. 9 is the main view of the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus of the present invention.
Figure 10 is the side view of the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus of the present invention.
Specific embodiment
Below with reference to attached drawing, detailed description of the preferred embodiments.
As is seen in figs 7-10, the outside miniature locking steel plate of veins of tarsal sinus approach is integrally formed before astragalus of the invention, including Lateral the first noumenon A1 and the second longitudinal ontology A2, the second ontology are connected to the end of the first noumenon, the first noumenon and the Two ontologies are equipped with lock hole A3, and locking bore dia is 3.5mm.As shown in figure 8, projection of second ontology in the first noumenon plane Having certain angle α in interconnecting piece with the first noumenon is 40-60 degree, plane locating for plane locating for the second ontology and the first noumenon Angle β is 10-25 degree.The invention belongs to anatomical plate, the first noumenon and the second ontology according to body of talus veins of tarsal sinus side solution It cuts open designed by form, on the basis of not influencing astragalus cartilage and surrounding ligaments, designs the width, thickness and radian of steel plate, The bone of two sides is fitted in respectively.The first noumenon and the second ontology use titanium alloy material, and thickness is 2.0-2.5mm, width It is 1.0~1.5cm, the first noumenon length is 2~3.5cm, and the second body length is 1~2.3cm.
The mass percentage content of alloying element in the titanium alloy material that the first noumenon and the second ontology use are as follows: Zn 1- 6%, Si 0.4-5%, Mn 0.06-0.8%, Zr 0.2-1%, Sn 0.5-4.7%, Sr 0.5-5%, rare earth element 0.2- 3%, Hf 1.45-1.52%, Co 0.3-1.1%, Ni 0.03-0.4%, methyl propanediol 0.5-2.3%, remaining is titanium.
Anterolateral astragalus sinus artery only supplies the region 1/8-1/4 on the outside of body of talus, therefore the approach damages blood supply It is small.Locking steel plate of the invention can be resetted or be planted to articular surface bone block under direct-view by outside veins of tarsal sinus approach before astragalus Bone.Locking steel plate is placed in the outer lower side of astragalus in veins of tarsal sinus, the influence to joint motion and blood supply is reduced as far as possible, is applicable in In Hawkins parting II, III, IV type and Sneppen parting II, IV, V-type fracture of talus.
Veins of tarsal sinus approach miniature locking steel plate in outside when in use, is entered using preceding outside veins of tarsal sinus before astragalus of the invention Road, as shown in fig. 6, cutting about 4-5cm from 2cm fibula forward position above astragalus sinus to the 4th metatarsal substrate direction, cutting under extensor Support band, by extensor digitorum brevis to leading to vola, musculus extensor digitorum longus pedis and the 3rd musculus peroneus are led to back side, appear veins of tarsal sinus, cut off fatty group It knits, appears fracture end and astragalus articular surface, reset or bone grafting are carried out to most of articular surface under direct-view, by miniature locking steel plate It is placed in the veins of tarsal sinus of astragalus outer lower side.Screw length is paid attention to when use, is avoided across articular surface；It is postoperative to avoid weight bearing 6-8 Week determines the lower ground time according to fracture recovery situation；Periodic review x-ray.
The invention further relates to a kind of method for preparing the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus above-mentioned, packets Include: the material of alloying element above-mentioned, which is put under vacuum conditions in smelting furnace, is heated to molten condition as aluminium alloy；It is added lazy Property gas makes air pressure in smelting furnace reach 10 atmospheric pressure；It keeps heating and stirs aluminium alloy 15min；In an inert atmosphere plus Enter slag former slag making and deslagging；Aluminium alloy is poured into mold and is cooled to flat sheet with holes；Flat sheet is heated to The punch forming on press machine after 380-420 DEG C；It polishes marginal portion；Cleaning is cleaned in the water that temperature is 100 DEG C, and Using ultrasonic oscillation, ultrasonic frequency 25kHz scavenging period 2~5 minutes, overlays on the miscellaneous of surface to remove abovementioned steps Matter and pollutant simultaneously utilize high-temperature sterilization；Spray antimicrobial layer in an aseptic environment inhibits bacterial growth, after preventing merging human body Infection.
The component and its mass fraction of slag former in above-described embodiment are SiO254~63 parts, 6~9 parts of CaO, MnO 3 parts, 5~8.5 parts of FeO, 0.5 part of S, 2~4 parts of MgO, NiCl20.3~0.8 part, H3BO30.1~0.4 part, BF30.4~ 0.7 part, MoSi21~1.4 part.
The invention further relates to the press machines of punching press, including rack, pedestal, rotating mechanism, punch assembly, and wherein pedestal is set In in rack, rotating mechanism is installed on pedestal；Multiple molds are installed, flat sheet is placed in mold, rotation on rotating mechanism Rotation mechanism is connected to pedestal by guide rail slide, rotate mold can around the punch assembly of top, rotating mechanism is additionally provided with tachometer Structure；Punch assembly above pedestal is hydraulic package, and hydraulic package can move up and down, and hydraulic package passes through hydraulic pump and machine Frame connection, hydraulic pump drive hydraulic package side-to-side movement, transport punch assembly can with constant level during up and down motion It is dynamic, move punch assembly and mold level of synchronization when punching press；Press machine further includes control mechanism, and control mechanism includes programmable Logic controller PLC, control panel, servo-driver；Press machine includes material fetching mechanism, will complete the flat sheet of punching press from mould It is taken out in tool.The rotating mechanism of the press machine obtains the movement velocity of flat sheet by velocity measurement mechanisms, through programmable logic control Device plc data calculation process processed, programmable logic controller (PLC) PLC integration handle velocity measurement mechanisms and by control panel setup parameters Afterwards, servo-driver is output data to, servo-driver controls the stretching speed of hydraulic pump.The press machine and heating furnace connect It connects, the flat sheet heated in heating furnace is fallen into the mold of press machine, and flat sheet follows mold to be moved under punch assembly Side, punch assembly complete punching press, and hydraulic pump is flexible in punching course makes punch assembly generate tailplane, guarantee punching press when punching press Component and mold are in moving synchronously, it is not necessary to suspend rotating mechanism by the way of stepping, promote working efficiency, rotation Mechanism is rotated around punch assembly, makes the continuous automatic operating of press machine.
The first noumenon of the outside miniature locking steel plate of veins of tarsal sinus approach and the second ontology are additionally provided with antibiotic layer before aforementioned astragalus, Antibiotic layer is made of mixed the alkyl silane with functional group, chondroitin sulfate, the acrylic resin with activating carboxy acid's group Closing object covering, there are the nano-metal particles of anti-microbial property to assemble composition, infect after preventing locking steel plate to be placed in wound.
The preferred embodiments of the disclosure and embodiment are explained in detail above in conjunction with attached drawing, but it is of the invention It is not limited to the above embodiment and embodiment can also not take off within the knowledge of those skilled in the art Various changes can be made under the premise of from present inventive concept.

Claims (5)

1. the outside miniature locking steel plate of veins of tarsal sinus approach before a kind of astragalus, including lateral the first noumenon and longitudinal second Body, the second ontology is connected to the end of the first noumenon and the first noumenon is integrally formed,
The first noumenon and the second ontology are equipped with lock hole (A3), and locking bore dia is 3.5mm,
The first noumenon length is 2~3.5cm, and the second body length is 1~2.3cm, and thickness is 2.0-2.5mm, and width is 1.0-1.5cm；
Second ontology has the angle of 40-60 degree, the second ontology in the projection of the first noumenon plane and the first noumenon in interconnecting piece Plane locating for locating plane and the first noumenon has 10~25 degree of angle.
2. the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus according to claim 1, it is characterised in that
The first noumenon and the second ontology use titanium alloy material, wherein the mass percentage content of alloying element are as follows: Zn 1-6%, Si 0.4-5%, Mn 0.06-0.8%, Zr 0.2-1%, Sn 0.5-4.7%, Sr 0.5-5%, rare earth element 0.2-3%, Hf 1.45-1.52%, Co 0.3-1.1%, Ni 0.03-0.4%, methyl propanediol 0.5-2.3%, remaining is titanium.
3. the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus according to claim 2, it is characterised in that
The first noumenon and the second ontology are additionally provided with antibiotic layer, the antibiotic layer by the alkyl silane with functional group, chondroitin sulfate, There are the nano-metal particles of anti-microbial property to assemble structure for the mixture covering of acrylic resin composition with activating carboxy acid's group At.
4. a kind of method for preparing the outside miniature locking steel plate of veins of tarsal sinus approach before astragalus as claimed in claim 3, comprising:
Material containing alloying element as claimed in claim 3 is put under vacuum conditions in smelting furnace and is heated to molten condition and becomes Aluminium alloy；
Inert gas, which is added, makes air pressure in smelting furnace reach 10 atmospheric pressure；
It keeps heating and stirs aluminium alloy 15min；
Slag former slag making and deslagging are added in an inert atmosphere；
Aluminium alloy is poured into mold and is cooled to flat sheet with holes；
The punch forming on press machine after plate is heated to 380-420 DEG C；
It polishes marginal portion；
Cleaning is cleaned in the water that temperature is 100 DEG C, and uses ultrasonic oscillation, ultrasonic frequency 25kHz, scavenging period 2 ~5 minutes,
Spray antimicrobial layer in an aseptic environment.
5. according to the method described in claim 4, it is characterized in that, the press machine includes rack, pedestal, rotating mechanism, punching Component is pressed,
Pedestal is set in rack, and rotating mechanism is installed on pedestal；
Multiple molds are installed, flat sheet is placed in mold, and rotating mechanism is connected to bottom by guide rail slide on rotating mechanism Seat, rotate mold can around the punch assembly above pedestal, rotating mechanism is additionally provided with velocity measurement mechanisms；
Punch assembly is hydraulic package, and hydraulic package can move up and down, and hydraulic package is connect by hydraulic pump with rack, hydraulic pump Hydraulic package horizontal movement is driven, move punch assembly can with constant level during up and down motion, punching when making punching press Component and mold level of synchronization is pressed to move；
Press machine further includes control mechanism, and control mechanism includes programmable logic controller (PLC) PLC, control panel, servo-driver；
Press machine further includes material fetching mechanism, and the flat sheet for completing punching press is taken out out of mold.
CN201610523464.XA 2016-07-01 2016-07-01 The outside miniature locking steel plate of veins of tarsal sinus approach before astragalus Active CN106175902B (en)

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CN106175902B true CN106175902B (en) 2018-12-28

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