CN208008934U - A kind of magnesium alloy pipe inner surface electrochemical polish structure - Google Patents

Abstract

The utility model is related to a kind of magnesium alloy pipe inner surface electrochemical polish structures comprising cathode line, cathode coil, cathode port, tubular structure, polishing fluid pipeline and anode port.In the utility model cathode line along magnesium alloy pipe axially across and the both ends of cathode line are electrically connected by cathode coil with cathode port respectively；The both ends of magnesium alloy pipe closely connect homoaxial tubular structure respectively, and cathode coil is located in tubular structure and tubular structure is connected with polishing fluid pipeline in the side far from magnesium alloy pipe；Anode port is in contact with magnesium alloy pipe, anode port can be powered with cathode port with external power supply, the electrical connection access of electrochemical polish is formed, polishing fluid is flowed by the polishing fluid pipeline of magnesium alloy pipe side, is flowed out by the polishing fluid pipeline of the magnesium alloy pipe other side.Above structure is simple to operation, it can be achieved that the efficiently and effectively polishing treatment of magnesium alloy pipe inner surface, and efficient and polishing is uniform.

Description

A kind of magnesium alloy pipe inner surface electrochemical polish structure

Technical field

The utility model is related to medical industry metal pipe material inner surface treatment device field more particularly to a kind of magnesium-alloy tubes Material inner surface electrochemical polish structure.

Background technology

In recent years, it is often used magnesium alloy and makes absorbable stent, because magnesium elements are present in the various tissues of human body, A variety of biological respinses are participated in, meanwhile, magnesium alloy has many advantages, such as low-density, low elastic modulus, high specific strength, degradable, therefore Magnesium alloy has innate advantage as novel absorbable medical instrument material.

However, the magnesium alloy pipe needed for magnesium alloy blood vessel rack is added by techniques such as extruding, rolling, drawings Made of work, deformation process is easy to leave deformation gauffer in the inner surface of the deformation low magnesium alloy pipe of plasticity, increases magnesium and closes There is burning or cuts not so as to cause when carrying out laser cutting engraving to magnesium alloy pipe in the roughness of golden internal surface of pipe Saturating situation further influences the bright and clean degree of magnesium alloy pipe inner surface.However, as interventional medical device material, slightly Rough inner surface can cause platelet aggregation and deformation, blood coagulation system and fibrinolytic system etc. impacted, influence bio-compatible, because This, needs to be processed by shot blasting the inner surface of magnesium alloy pipe.

Since the internal diameter of the magnesium alloy pipe as intravascular stent is small, magnesium alloy should not be handled by way of mechanical processing The inner surface of tubing；It is difficult to control the extent of reaction and polishing uniformity by chemical treatment, it is difficult to effectively eliminate magnesium alloy The roughness of internal surface of pipe；The mode of electrochemical polish is relatively suitable, therefore, it is necessary to design table in a kind of magnesium alloy pipe Face electrochemical polish structure carries out efficiently and effectively polishing treatment to realize to magnesium alloy pipe inner surface.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of magnesium alloy pipe inner surface electrochemical polish knot Structure may be implemented to carry out fast magnesium alloy pipe inner surface with the method for electrochemical polish using the device of the utility model Effective polishing treatment effectively avoids existing machinery polishing and deficiency of the chemical polishing when handling magnesium alloy pipe inner surface.

Technical solution is used by the utility model solves above-mentioned technical problem：

A kind of magnesium alloy pipe inner surface electrochemical polish structure, including：Pass axially through the moon inside magnesium alloy pipe The both ends of polar curve, the cathode line respectively connect cathode coil, and the cathode coil is electrically connected with cathode port；Magnesium alloy pipe Both ends respectively closely connect tubular structure, the tubular structure and magnesium alloy pipe are coaxial, and the cathode coil is located at In the tubular structure；The tubular structure is respectively connected with polishing fluid pipeline in the side far from magnesium alloy pipe；It further include sun Extreme mouth, the anode port are in contact with magnesium alloy pipe；It the anode port can same external power supply with the cathode port It is powered.

In a preferred embodiment, it is wound with insulated coil in the cathode line, the insulated coil is by described the moon The inner surface of polar curve and magnesium alloy pipe separates.

In a preferred embodiment, the tubular structure opens up and magnesium alloy in the side close to magnesium alloy pipe The groove of the tube wall clamping of tubing.

In a preferred embodiment, bulge-structure, further clamping magnesium-alloy tube is arranged in the inner wall of the groove The tube wall of material.

In a preferred embodiment, the tubular structure includes interior buckle and outer buckle, and the interior buckle is located at The inside of the outer buckle, the cathode coil are located in the hollow cavity of the interior buckle, the interior buckle, the outer buckle It is clamped with magnesium alloy pipe.

In a preferred embodiment, the interior outer wall contacted with magnesium alloy pipe that buckles is equipped with protrusion knot Structure, the outer inner wall contacted with magnesium alloy pipe that buckles are equipped with bulge-structure, and the further clamping magnesium of bulge-structure closes The tube wall of golden tubing.

In a preferred embodiment, the cathode coil is elastic cathode coil.

In a preferred embodiment, the polishing fluid pipeline is made of with the tubular structure insulating materials,

In a preferred embodiment, the anode port is embedded in the tubular structure and and magnesium alloy pipe Tube wall contact, the corresponding position that the tubular structure is in contact in the anode port with magnesium alloy pipe is provided with conduction Piece.

In a preferred embodiment, the cathode port be embedded in the tubular structure and with the cathode line Circle electrical connection.

The utility model has the beneficial effects that：

In the utility model cathode line along magnesium alloy pipe axially across and the both ends of cathode line pass through cathode line respectively Circle is electrically connected with cathode port；The both ends of magnesium alloy pipe closely connect homoaxial tubular structure respectively, and cathode coil is located at In tubular structure and tubular structure is connected with polishing fluid pipeline in the side far from magnesium alloy pipe；Anode port and magnesium-alloy tube Material is in contact, and anode port can be powered with cathode port with external power supply, form the electrical connection access of electrochemical polish, polishing fluid It is flowed by the polishing fluid pipeline of magnesium alloy pipe side, is flowed out by the polishing fluid pipeline of the magnesium alloy pipe other side.Above structure It is simple to operation, it can be achieved that the efficiently and effectively polishing treatment of magnesium alloy pipe inner surface, efficient and polishing is uniform.

Description of the drawings

The utility model is described further with reference to the accompanying drawings and examples.

Fig. 1 is the composed structure schematic diagram of the utility model one embodiment.

Specific implementation mode

The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

It should be noted that unless otherwise specified, when a certain feature is referred to as " fixing ", " connection " is in another feature, It can directly fix, be connected in another feature, can also fix, be connected in another feature indirectly.In addition, this The descriptions such as the upper and lower, left and right used in utility model are only the phase relative to each component part of the utility model in attached drawing For mutual position relationship.

In addition, unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the art The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without It is to limit the utility model.Term " and or " used herein includes appointing for one or more relevant Listed Items The combination of meaning.

Fig. 1 is the composed structure schematic diagram of the utility model one embodiment, referring to Fig.1, the magnesium alloy pipe inner surface Electrochemical polish structure includes：

Polishing fluid pipeline 1, cathode port 2, it is outer buckle 3, it is interior buckle 4, cathode coil 5, insulated coil 7, cathode line 8 and Anode port 9.

For convenience of description, magnesium alloy pipe 6 is also shown in figure.

In the utility model, cathode line 8 along magnesium alloy pipe 6 axially across magnesium alloy pipe 6, magnesium alloy pipe 6 Both ends are respectively closely connected with tubular structure, and tubular structure and magnesium alloy pipe 6 are coaxial, and cathode coil 5 is located at tubular structure Interior, the both ends of cathode line 8 are respectively electrically connected with cathode coil 5, and cathode coil 5 is electrically connected with cathode port 2.Tubular structure is remote Side from magnesium alloy pipe 6 is respectively connected with polishing fluid pipeline 1, i.e. the both ends of magnesium alloy pipe 6 are connected respectively by tubular structure It is connected to polishing fluid pipeline 1, polishing fluid flows through tubular structure, magnesium alloy pipe 6 by the polishing fluid pipeline 1 of 6 one end of magnesium alloy pipe, It is flowed out again by the tubular structure of the other end and polishing fluid pipeline 1.The utility model further includes anode port 9, anode port 9 with Magnesium alloy pipe 6 contacts, and anode port 9 can be powered with cathode port 2 with external power supply, form the connection that is electrically connected of electrochemical polish Road.Herein, it is preferable that anode port 9 and cathode port 2 are standard port, are connected with external power supply with facilitating.Herein, Preferably, there are junction button (not shown)s at the both ends of cathode line 8, to facilitate cathode line 8 to pass through junction button and cathode coil 5 Connection.

For the magnesium alloy pipe 6 of the thin footpath as medical equipment, reasonable stream of the control polishing fluid in magnesium alloy pipe Dynamic is an important factor for obtaining high-quality polished inner surface, and above structure is simple to operation, it can be achieved that magnesium alloy pipe inner surface Efficiently and effectively polishing treatment, efficient and polishing are uniform.It, can be in conjunction with above-mentioned polishing structure using electrochemical polish principle Effectively avoid existing machinery polishing and deficiency of the chemical polishing when handling magnesium alloy pipe inner surface.

In the present embodiment, it is preferable that be wound with insulated coil 7 in cathode line 8, the effect of insulated coil 7 herein is will be cloudy Polar curve 8 and the inner surface of magnesium alloy pipe 6 separate, and make the cathode line 8 connected with cathode port 2 and contact with anode port 9 The tube wall of magnesium alloy pipe 6 keeps certain distance.Insulated coil 7 herein is preferably helical plastic coil, is formed in the circumferential The space of housing insulation coil 7.Herein, it is preferable that the cathode coil 5 of the both ends connection of cathode line 8 is elastic cathode coil, In selection a certain range after the cathode line 8 of suitable length, by the adjusting of elastic cathode coil, cathode line 8 is made to be in tight shape State further ensures that and remains certain distance between cathode line 8 and the tube wall of magnesium alloy pipe 6.

In the present embodiment, it is preferable that tubular structure opens up and magnesium alloy pipe 6 close to the side of magnesium alloy pipe 6 The groove (being not marked in figure) of tube wall clamping, makes tubular structure that need not can be realized by other connectors with magnesium alloy pipe 6 Close connection.Herein, it is preferable that bulge-structure (not shown) is arranged in the inner wall of above-mentioned groove, keeps tubular structure further The tube wall of clamping magnesium alloy pipe 6, stable connection are reliable.

In the present embodiment, it is preferable that tubular structure may include interior buckle 4 and outer buckle 3, and interior buckle 4 is located at outer buckle 3 Inside, cathode coil 5 be located at it is interior buckle 4 hollow cavity in, it is interior buckle 4, it is outer buckle 3 with 6 tight clamping fit of magnesium alloy pipe. Herein, it is preferable that the outer wall that interior buckle 4 is contacted with magnesium alloy pipe 6 is equipped with bulge-structure (not shown), outer buckle 3 The inner wall contacted with magnesium alloy pipe 6 is equipped with bulge-structure (not shown), and bulge-structure makes interior buckle 4 and outer buckle 3 The tube wall of further clamping magnesium alloy pipe 6.Certainly, interior buckle 4 can also be integrally formed with outer buckle 3 herein, make tubulose knot The globality of structure is more preferable, and seal is more preferable, saves connector, simplifies structure.

In the present embodiment, it is preferable that polishing fluid pipeline 1 is made of with tubular structure insulating materials, such as polishes liquid pipe Road 1 can select rubber tube.At this point, anode port 9 is embedded in tubular structure and is contacted with the tube wall of magnesium alloy pipe 6, manage The corresponding position that shape structure is in contact in anode port 9 with magnesium alloy pipe 6 is provided with conductive sheet (being not marked in figure), to protect Card is electrically connected reliable and stable；Cathode port 2 is embedded in tubular structure and is electrically connected anodes port 9 and the moon with cathode coil 5 Extreme mouth is embedded in the inside of magnesium alloy pipe 6, and installation is reliable and stable, saves space.

It, can be by adjusting polishing fluid in magnesium alloy when stating magnesium alloy pipe inner surface electrochemical polish structure in use In tubing 6 by flow velocity, by duration and structure in be electrically connected access voltage, adjust in magnesium alloy pipe 6 The polishing action on surface.In use, ensureing junction in above structure without polishing fluid overflow, to ensure that structure cleaning is electric The stabilization of connecting path.According to the inner surface situation of magnesium alloy pipe 6, it can select in electrochemical polishing process, give magnesium 6 ultrasonic vibration of alloy pipe makes polishing product be polished liquid stream and takes away, and accelerates surface polishing efficiency.

It is to be illustrated to the preferable implementation of the utility model, but the utility model creation is not limited to institute above Embodiment is stated, those skilled in the art can also make various be equal without departing from the spirit of the present invention Deformation is replaced, these equivalent deformations or replacement are all contained in the application claim limited range.

Claims (10)

1. a kind of magnesium alloy pipe inner surface electrochemical polish structure, which is characterized in that including：Pass axially through magnesium alloy pipe Internal cathode line, the both ends of the cathode line respectively connect cathode coil, and the cathode coil is electrically connected with cathode port；Magnesium The both ends of alloy pipe respectively closely connect tubular structure, and the tubular structure and magnesium alloy pipe are coaxial, and the cathode Coil is located in the tubular structure；The tubular structure is respectively connected with polishing fluid pipeline in the side far from magnesium alloy pipe； Further include anode port, the anode port is in contact with magnesium alloy pipe；It the anode port can be same with the cathode port External power supply is powered.

2. magnesium alloy pipe inner surface electrochemical polish structure according to claim 1, it is characterised in that：The cathode line On be wound with insulated coil, the insulated coil separates the inner surface of the cathode line and magnesium alloy pipe.

3. magnesium alloy pipe inner surface electrochemical polish structure according to claim 2, it is characterised in that：The tubulose knot Structure opens up the groove being clamped with the tube wall of magnesium alloy pipe in the side close to magnesium alloy pipe.

4. magnesium alloy pipe inner surface electrochemical polish structure according to claim 3, it is characterised in that：The groove Bulge-structure, the tube wall of the bulge-structure clamping magnesium alloy pipe is arranged in inner wall.

5. magnesium alloy pipe inner surface electrochemical polish structure according to claim 2, it is characterised in that：The tubulose knot Structure includes interior buckle and outer buckle, and for the interior buckle positioned at the inside of the outer buckle, the cathode coil is located at the interior card In the hollow cavity of button, the interior buckle, the outer buckle are clamped with magnesium alloy pipe.

6. magnesium alloy pipe inner surface electrochemical polish structure according to claim 5, it is characterised in that：The interior buckle The outer wall contacted with magnesium alloy pipe is equipped with bulge-structure, and outer buckle also is provided on the inner wall contacted with magnesium alloy pipe Bulge-structure, the tube wall of the bulge-structure clamping magnesium alloy pipe.

7. magnesium alloy pipe inner surface electrochemical polish structure according to any one of claim 1 to 6, feature exist In：The cathode coil is elastic cathode coil.

8. magnesium alloy pipe inner surface electrochemical polish structure according to claim 7, it is characterised in that：The polishing fluid Pipeline is made of with the tubular structure insulating materials.

9. magnesium alloy pipe inner surface electrochemical polish structure according to claim 8, it is characterised in that：The anode tap Mouth is embedded in the tubular structure and is contacted with the tube wall of magnesium alloy pipe, and the tubular structure is in the anode port and magnesium The corresponding position that alloy pipe is in contact is provided with conductive sheet.

10. magnesium alloy pipe inner surface electrochemical polish structure according to claim 8 or claim 9, it is characterised in that：Described the moon Extreme mouth is embedded in the tubular structure and is electrically connected with the cathode coil.