CN113133793A

CN113133793A - Distractor for orthopedic surgery

Info

Publication number: CN113133793A
Application number: CN202110435108.3A
Authority: CN
Inventors: 王珂杰
Original assignee: First Peoples Hospital of Changzhou
Current assignee: First Peoples Hospital of Changzhou
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-07-20
Anticipated expiration: 2041-04-22
Also published as: CN113133793B

Abstract

The invention discloses a spreader used in orthopaedics, which has the technical scheme that: including the diaphragm, still include: the first fixed seat is fixed at one end of the transverse plate; the second fixed seat is connected to the outer part of the transverse plate in a sliding manner; the stretching assemblies are arranged on the first fixed seat and the second fixed seat; disassembling the auxiliary support assembly connected to the support assembly; the marking component is used for indicating the position of the second fixed seat and the spreading angle of the spreading component; the supporting seat is arranged on the transverse plate, and a sliding groove is formed in the supporting seat; two groups of clamping components are arranged on the supporting seat; the power assembly is used for driving the two groups of clamping assemblies to approach or separate; the spreader has the advantages of conveniently adjusting the spreading angle and the spreading distance, correctly indicating the specific numerical values of the spreading angle and the spreading distance, and having the advantages of reliable structure and flexible and convenient use.

Description

Distractor for orthopedic surgery

Technical Field

The invention relates to the technical field of medical treatment, in particular to a spreader for orthopedic surgery.

Background

When carrying out the operation that muscle tissue is more such as shank, arm department, need open skin, strut muscle separation, adopt the spreader to operate at this moment mostly, the primary structure of spreader is a diaphragm, fixed fagging and a gliding fagging, the length of strutting is adjusted through the position of adjusting the slip fagging.

The existing Chinese patent with publication number CN103126754A discloses a cervical vertebra spreader, which comprises a connecting pipe, wherein the connecting pipe is provided with a working mechanism, a stop mechanism and a driving mechanism, and is characterized in that: the working mechanism comprises a fixed opening arm and a movable opening arm, the fixed opening arm is installed at the front end of the connecting pipe, the movable opening arm is movably installed on the connecting pipe through a connecting rod, and the connecting rod is movably connected with the driving mechanism. As an improvement, the driving mechanism comprises a transmission mechanism arranged on the connecting pipe; one end of the transmission mechanism is connected with the connecting rod, the other end of the transmission mechanism is connected with a wrench, and the wrench is installed on the connecting pipe. The transmission mechanism is a gear assembly, and two ends of the gear assembly are respectively in transmission connection with the wrench and the connecting rod.

The cervical vertebra distractor has the advantage of reliable structure; however, the above-mentioned cervical vertebra distracter still has some disadvantages, such as: firstly, the spreader cannot adjust the spreading angle, and the spreading angle, the distance and the like cannot be indicated; secondly, the spreader is difficult to be fixed fully and effectively when in use and is inconvenient to use.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a spreader for orthopedics surgery to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a distractor that orthopedics was used, includes the diaphragm, still includes:

the first fixed seat is fixed at one end of the transverse plate;

the second fixed seat is connected to the outer part of the transverse plate in a sliding manner;

the stretching assemblies are arranged on the first fixed seat and the second fixed seat;

disassembling the auxiliary support assembly connected to the support assembly;

the marking component is used for indicating the position of the second fixed seat and the spreading angle of the spreading component;

the supporting seat is arranged on the transverse plate, and a sliding groove is formed in the supporting seat;

two groups of clamping components are arranged on the supporting seat;

and the power assembly is used for driving the two groups of clamping assemblies to approach or separate.

By adopting the technical scheme, the distractor has the advantages that the distraction angle and the distraction distance can be conveniently adjusted, and the specific numerical values of the distraction angle and the distraction distance can be correctly indicated; in addition, the spreader is difficult to be sufficiently and effectively fixed when in use, can be convenient for operators to operate, overcomes the defects of instability and shaking of the traditional spreader, and has the advantages of reliable structure and flexible and convenient use.

Further, the subassembly that struts includes L shape seat, main fagging, slope supporting part, double-screw bolt and first adjusting bolt, L shape seat sets up first fixing base with second fixing base is distolateral, main fagging rotates to be connected on the L shape seat, the triangular shape of cross-section for having a fillet of slope supporting part, the double-screw bolt is fixed the distolateral of slope supporting part, the double-screw bolt with threaded connection between the fagging, first adjusting bolt with threaded connection between the L shape seat, first adjusting bolt tip with connect fixedly between the main fagging, the assistance props the subassembly and sets up on the main fagging.

Through adopting above-mentioned technical scheme, can realize strutting the musculature through utilizing the owner fagging that struts in the subassembly, slide through pulling second fixing base and can adjust the position of one of them L shape seat and main fagging, in addition, owing to adopted the double-screw bolt, so the slope supporting part can conveniently follow the distolateral dismantlement of main fagging to can realize the adjustment to main fagging angle when the first adjusting bolt of operator's rotating, convenient to use, the structure is reliable.

Further, the auxiliary support assembly comprises a slot, a plug strip, a dovetail strip portion, dovetail strip grooves, an overhanging piece, a compression bolt and an auxiliary support plate, the slot is formed in the main support plate, the plug strip is inserted into the slot, the dovetail strip portion and the plug strip are integrally formed, the dovetail strip grooves are formed in the main support plate for the dovetail strip portion to be inserted, the overhanging piece is fixed to the outer portion of the main support plate, the compression bolt is in threaded connection with the inner portion of the main support plate, and the auxiliary support plate is fixed to the end portion of the plug strip.

Through adopting above-mentioned technical scheme, when human tissue stenosis department need strut, the operator can insert the slot in the slot, inserts the forked tail strip portion to the forked tail strip inslot, later the operator can screw up the clamp bolt on the overhanging piece to can be with the stable fixing of forked tail strip portion on the main fagging, utilize the supplementary fagging of forked tail strip portion tip to realize supplementary effect of strutting, make its be applicable to comparatively constrictive human tissue department more and strut.

Further, the sign subassembly includes the identification plate, the distance marking line of densely covered, fixed disk, pointer and the angle marking line of densely covered, the identification plate is fixed the surface of diaphragm, densely covered the distance marking line is seted up respectively on the identification plate, the fixed disk is fixed first fixing base with on the second fixing base, the round core axle of fixed disk with the axis of rotation tip of main backup pad is concentric, the pointer is fixed be used for instructing in the main backup pad the turned angle of main backup pad, densely covered angle scale line is seted up respectively on the fixed disk.

Through adopting above-mentioned technical scheme, can realize the adjustment to strutting angle and position through utilizing the sign subassembly, if can adjust the position of second fixing base through utilizing the distance marking line on the signboard, can instruct the angle of main fagging through utilizing fixed disk and pointer, can conveniently fix a position.

Further, clamping component includes notch, two screw rods, two sliding blocks, two extension boards and two splint, the notch is seted up in the supporting seat and with the spout runs through each other, two the screw rod rotates respectively through the bearing to be connected in the supporting seat, two the sliding block slides respectively to be connected in the spout, power component is used for driving two the screw rod asynchronous rotation, two the extension board is fixed respectively on the sliding block, two the extension board slides respectively to be connected in the notch, two splint are fixed respectively two the extension board tip.

Through adopting above-mentioned technical scheme, drive two screw rods when power component and rotate, it can drive two sliding blocks and be close to each other or the principle to can drive extension board and splint on two sliding blocks and be close to each other or keep away from, thereby can realize that the firm joint of this supporting seat is fixed, thereby made things convenient for the fixed of this device.

Further, the power assembly comprises an Contraband-shaped plate, a micro motor, a first bevel gear and two second bevel gears, wherein the 21274; the shaped plate is fixed on the supporting seat, the micro motor is fixed on the Contraband-shaped plate, the first bevel gear is fixed at the end part of a motor shaft of the micro motor, the two second bevel gears are fixed at one ends, close to each other, of the two screw rods, and the first bevel gear and the two second bevel gears are meshed with each other.

By adopting the technical scheme, when the micro motor on the V-shaped plate in the power assembly is started, the micro motor can drive the first conical gear to rotate, and the two screws can be driven to asynchronously act through the meshing between the first conical gear and the two second conical gears.

Furthermore, the top of the supporting seat is in threaded connection with an external extension rod, the external thread of the external extension rod is connected with a supporting ring, and the supporting ring is fixed on the transverse plate.

Through adopting above-mentioned technical scheme, can conveniently realize the dismantlement of diaphragm and supporting seat through utilizing the outer pole that stretches out on the supporting seat and support ring to can make things convenient for the use of diaphragm.

Furthermore, one of the clamping plates is connected with a pressing plate through a plurality of springs, two fixing rods are symmetrically fixed on one of the clamping plates, the two fixing rods are respectively inserted into the other pressing plate, and the outer parts of the two fixing rods are respectively in threaded connection with a pressing sleeve.

Through adopting above-mentioned technical scheme, the fixed effect of supporting seat can be improved to the clamp plate that utilizes through spring coupling on splint, when the spring top moved the clamp plate and compresses tightly this device to the bearing thing on, the outside cover that compresses tightly of dead lever can be screwed to the operator to can realize this firm fixed of equipping.

Furthermore, a second adjusting bolt is connected to the first fixing seat in an internal thread manner, the end portion of the second adjusting bolt is fixedly connected with the L-shaped seat on the first fixing seat, a guide block is fixed on the second fixing seat, a guide groove is formed in the transverse plate, the guide block is connected to the guide groove in a sliding manner, and a third adjusting bolt is connected to the second fixing seat in an internal thread manner.

Through adopting above-mentioned technical scheme, when the operator rotates the second adjusting bolt on the first fixing base, it can drive L shape seat and rotate certain angle, thereby can carry out the adjustment of certain angle to the L shape seat on the first fixing base, when the adjustment of angle takes place for the L shape seat on the first fixing base, it can drive the main supporting plate and carry out angle modulation to the front and back, can drive the guide block and slide in the guide way when the operator promotes the second fixing base and slides, can realize the fixed to the second fixing base through screwing up second adjusting bolt, conveniently carry out abundant locking.

Furthermore, the cross section of assisting the fagging is waist shape, assist have on the fagging with assist fagging integrated into one piece's boss, have on the boss with boss integrated into one piece's collude the portion of drawing.

Through adopting above-mentioned technical scheme, the supplementary fagging of waist shape cross-section can assist and strut muscle tissue, and the reinforcing block can improve the ability of unilateral fixed tissue with the portion of drawing of colluding above that.

In summary, the invention mainly has the following beneficial effects: .

The distractor has the advantages that the distracting angle and the distracting distance can be conveniently adjusted, and the specific numerical values of the distracting angle and the distracting distance can be correctly indicated; in addition, the spreader is difficult to be sufficiently and effectively fixed when in use, can be convenient for operators to operate, overcomes the defects of instability and shaking of the traditional spreader, and has the advantages of reliable structure and flexible and convenient use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion B in FIG. 1;

FIG. 4 is a second schematic structural diagram of an embodiment of the present invention;

FIG. 5 is an enlarged view of the portion C of FIG. 4;

FIG. 6 is a cross-sectional view of one embodiment of the present invention;

FIG. 7 is an enlarged view of the portion D in FIG. 6;

fig. 8 is a sectional view of a first fixing seat according to an embodiment of the present invention.

In the figure: 1. a transverse plate; 11. a first fixed seat; 12. a second fixed seat; 2. a distraction assembly; 3. an auxiliary support assembly; 4. identifying a component; 13. a supporting seat; 14. a chute; 5. a clamping assembly; 6. a power assembly; 21. an L-shaped seat; 22. a main supporting plate; 23. an inclined support portion; 24. a stud; 25. a first adjusting bolt; 31. a slot; 32. cutting; 33. a dovetail strip portion; 34. dovetail grooves; 35. an overhanging piece; 36. a hold-down bolt; 37. auxiliary supporting plates; 41. a marking plate; 42. a distance marking line; 43. fixing the disc; 44. a pointer; 45. an angle marking line; 51. a notch; 52. a screw; 53. a slider; 54. an extension plate; 55. a splint; 61. contraband shaped plates; 62. a micro motor; 63. a first bevel gear; 64. a second bevel gear; 131. an outward extending rod; 132. a support ring; 561. a spring; 562. pressing a plate; 563. fixing the rod; 564. a compression sleeve; 111. a second adjusting bolt; 121. a guide block; 122. a guide groove; 123. a third adjusting bolt; 371. a reinforcing block; 372. a hooking part.

Detailed Description

Example (b):

example (b):

the present invention is described in further detail below with reference to figures 1-8.

Example 1

As shown in fig. 1, 4 and 6, a spreader for orthopedics mainly comprises the following parts:

a cross plate 1 as a main body support, wherein the cross plate 1 is constructed of a stainless steel material;

the first fixing seat 11 is fixed at one end of the transverse plate 1, wherein the first fixing seat 11 is fixed in a welding, riveting, bolt and other modes;

the second fixed seat 12 is connected to the outer part of the transverse plate 1 in a sliding manner, wherein the second fixed seat 12 is clamped on the outer part of the transverse plate 1 to slide;

the stretching components 2 are arranged on the first fixing seat 11 and the second fixing seat 12, and the stretching components 2 can be used for assisting the stretching of muscle tissues and skin;

the auxiliary supporting component 3 connected to the opening component 2 is disassembled, and the arrangement of the auxiliary supporting component 3 can ensure that the opening can be carried out at the narrow tissue;

the marking component 4 is used for indicating the position of the second fixing seat 12 and the opening angle of the opening component 2, and the opening angle and position can be marked by using the marking component 4;

a supporting seat 13 arranged on the transverse plate 1, wherein a sliding chute 14 is arranged in the supporting seat 13;

the two groups of clamping assemblies 5 which are arranged on the supporting seat 13 and used for fixing the distractor can be used for facilitating the installation and fixation of the supporting seat 13 by utilizing the clamping assemblies 5;

and the power assembly 6 is used for driving the two groups of clamping assemblies 5 to be close to or separated from each other, and the power assembly 6 can be used for assisting in fixing.

Referring to fig. 1, 4 and 6, the distractor has the advantages that the distraction angle and the distraction distance can be conveniently adjusted, and the specific numerical values of the distraction angle and the distraction distance can be correctly indicated; in addition, the spreader is difficult to be sufficiently and effectively fixed when in use, can be convenient for operators to operate, overcomes the defects of instability and shaking of the traditional spreader, and has the advantages of reliable structure and flexible and convenient use.

Referring to fig. 1, 2 and 8, in order to fully expand muscle tissues or skin and ensure the convenience of the expander, the expansion assembly 2 is provided and comprises an L-shaped seat 21, a main supporting plate 22, an inclined supporting part 23, a stud 24 and a first adjusting bolt 25, the L-shaped seat 21 is arranged at the end sides of a first fixed seat 11 and a second fixed seat 12, the main supporting plate 22 is rotatably connected to the L-shaped seat 21, the section of the inclined supporting part 23 is triangular with a round angle, the stud 24 is fixed at the end side of the inclined supporting part 23, the stud 24 is in threaded connection with the supporting plate, the first adjusting bolt 25 is in threaded connection with the L-shaped seat 21, the end part of the first adjusting bolt 25 is fixedly connected with the main supporting plate 22, and the auxiliary support assembly 3 is arranged on the main supporting plate 22; strutting the musculature through utilizing the owner fagging 22 among the subassembly 2 that struts can realize strutting, can adjusting one of them L shape seat 21 and the position of main fagging 22 through pulling the second fixing base 12 slip, in addition, owing to adopted double-screw bolt 24, so inclined support portion 23 can conveniently follow the distolateral dismantlement of main fagging 22 to can realize the adjustment to main fagging 22 angle when the operator rotates first adjusting bolt 25, convenient to use, the structure is reliable.

Referring to fig. 1, 2 and 3, in order to facilitate muscle and skin opening at a narrow tissue, an auxiliary supporting assembly 3 is provided, which includes a slot 31, a plug 32, a dovetail strip 33, a dovetail strip slot 34, an outward-extending piece 35, a pressing bolt 36 and an auxiliary supporting plate 37, wherein the slot 31 is provided in the main supporting plate 22, the plug 32 is inserted into the slot 31, the dovetail strip 33 and the plug 32 are integrally formed, the dovetail strip slot 34 is provided in the main supporting plate 22 for inserting the dovetail strip 33, the outward-extending piece 35 is fixed outside the main supporting plate 22, the pressing bolt 36 is screwed into the main supporting plate 22, and the auxiliary supporting plate 37 is fixed at an end of the plug 32; when the narrow part of the human tissue needs to be expanded, an operator can insert the slot 31 into the slot 31, insert the dovetail strip part 33 into the dovetail strip groove 34, and then tighten the compression bolt 36 on the overhanging sheet 35, so that the dovetail strip part 33 can be stably fixed on the main supporting plate 22, and the auxiliary supporting plate 37 at the end part of the dovetail strip part 33 can realize the effect of auxiliary expansion, so that the narrow part of the human tissue is more suitable for expansion.

Referring to fig. 1, 3 and 4, in order to mark the position of the second fixing seat 12 and mark the angle of the main supporting plate 22, the set marking assembly 4 comprises a marking plate 41, densely distributed distance marking lines 42, a fixed disk 43, a pointer 44 and densely distributed angle marking lines 45, the marking plate 41 is fixed on the surface of the horizontal plate 1, the densely distributed distance marking lines are respectively arranged on the marking plate 41, the fixed disk 43 is fixed on the first fixing seat 11 and the second fixing seat 12, the round mandrel of the fixed disk 43 is concentric with the end of the rotating shaft of the main supporting plate 22, the pointer 44 is fixed on the main supporting plate 22 and used for indicating the rotating angle of the main supporting plate 22, and the densely distributed angle marking lines are respectively arranged on the fixed disk 43; the adjustment of the opening angle and position can be realized by using the identification component 4, such as the position of the second fixed seat 12 can be adjusted by using the distance identification line 42 on the identification plate 41, and the angle of the main supporting plate 22 can be indicated by using the fixed plate 43 and the pointer 44, so that the positioning can be conveniently carried out.

Referring to fig. 4, 5 and 6, in order to ensure that the supporting seat 13 can be sufficiently fixed, the clamping assembly 5 includes a notch 51, two screws 52, two sliding blocks 53, two extending plates 54 and two clamping plates 55, the notch 51 is opened in the supporting seat 13 and penetrates through the sliding groove 14, the two screws 52 are respectively rotatably connected in the supporting seat 13 through bearings, the two sliding blocks 53 are respectively slidably connected in the sliding groove 14, the power assembly 6 is used for driving the two screws 52 to rotate asynchronously, the two extending plates 54 are respectively fixed on the sliding blocks 53, the two extending plates 54 are respectively slidably connected in the notch 51, and the two clamping plates 55 are respectively fixed at the ends of the two extending plates 54; when the power assembly 6 drives the two screws 52 to rotate, the two sliding blocks 53 can be driven to approach or move away from each other, so that the extending plates 54 and the clamping plates 55 on the two sliding blocks 53 can be driven to approach or move away from each other, the supporting seat 13 can be firmly clamped and fixed, and the fixing of the device is facilitated.

Referring to fig. 6 and 7, in order to facilitate the two screws 52 to approach or move away from each other, the power assembly 6 is provided and comprises an Contraband-shaped plate 61, a micro-motor 62, a first bevel gear 63 and two second bevel gears 64, 21274, wherein the plate 61 is fixed on the support base 13, the micro-motor 62 is fixed on the plate 61 Contraband, the first bevel gear 63 is fixed at the end part of the motor shaft of the micro-motor 62, the two second bevel gears 64 are fixed at the end parts of the two screws 52 which approach each other, and the first bevel gear 63 and the two second bevel gears 64 are meshed with each other; when the micro motor 62 on the v/l-shaped plate 61 in the power assembly 6 is started, it can drive the first bevel gear 63 to rotate, and the two screw rods 52 can be driven to move asynchronously through the engagement between the first bevel gear 63 and the two second bevel gears 64.

Referring to fig. 1 and 4, an external extension rod 131 is screwed on the top of the supporting seat 13, a supporting ring 132 is screwed on the outside of the extension rod 131, the supporting ring 132 is fixed on the transverse plate 1, and the transverse plate 1 and the supporting seat 13 can be conveniently detached by using the external extension rod 131 and the supporting ring 132 on the supporting seat 13, so that the transverse plate 1 can be conveniently used.

Referring to fig. 4 and 5, in order to improve the clamping effect, a pressing plate 562 is connected to one of the clamping plates 55 through a plurality of springs 561, two fixing rods 563 are symmetrically fixed to one of the clamping plates 55, the two fixing rods 563 are respectively inserted into the other pressing plate 562, a pressing sleeve 564 is respectively screwed to the outer portions of the two fixing rods 563, the fixing effect of the supporting base 13 can be improved by using the pressing plate 562 connected to the clamping plate 55 through the springs 561, when the springs 561 push the pressing plate 562 to press the device onto a supporting object, an operator can screw the pressing sleeve 564 on the outer portions of the fixing rods 563, and thus the device can be firmly fixed.

Referring to fig. 2, 4 and 8, in order to adjust the angle of the main supporting plate 22 in the front-rear direction, a second adjusting bolt 111 is connected to the first fixing seat 11 through a female screw, the end of the second adjusting bolt 111 is fixedly connected to the L-shaped seat 21 of the first fixing seat 11, in order to sufficiently lock the second fixing seat 12, a guide block 121 is fixed to the second fixing seat 12, a guide slot 122 is formed in the horizontal plate 1, the guide block 121 is slidably connected to the guide slot 122, a third adjusting bolt 123 is connected to the second fixing seat 12 through a female screw, when an operator rotates the second adjusting bolt 111 of the first fixing seat 11, the L-shaped seat 21 can be driven to rotate by a certain angle, so as to adjust the L-shaped seat 21 of the first fixing seat 11 by a certain angle, when the L-shaped seat 21 of the first fixing seat 11 is adjusted by an angle, the main supporting plate 22 can be driven to be adjusted by an angle in the front-rear direction, when the operator pushes the second fixing seat 12 to slide, the guide block 121 can be driven to slide in the guide groove 122, and the second fixing seat 12 can be fixed by screwing the second adjusting bolt 111, so that the second fixing seat 12 can be conveniently and fully locked.

Referring to fig. 8, in order to improve the fixing effect of grabbing muscles and skin, the cross section of the auxiliary supporting plate 37 is waist-shaped, the auxiliary supporting plate 37 is provided with a reinforcing block 371 integrally formed with the auxiliary supporting plate 37, the reinforcing block 371 is provided with a hooking part 372 integrally formed with the reinforcing block 371, the auxiliary supporting plate 37 with the waist-shaped cross section can assist in stretching muscle tissues, and the reinforcing block 371 and the hooking part 372 on the reinforcing block can improve the capacity of fixing tissues on one side.

Wherein inlay respectively on two main fagging 22 in this spreader and be equipped with pressure sensor, top at diaphragm 1 is fixed with the DSP controller, display and alarm, wherein pressure sensor and the control input end electric connection of DSP controller, display and alarm respectively with the control output end electric connection of DSP controller, when pressure sensor sensing draws the pressure of strutting muscle or skin, can show on the display, make things convenient for the doctor to know the size of strutting pressure, prevent because it is too big later stage recovery slow to strut muscle or skin pressure.

Wherein install electromagnet at the wall of the supporting seat 13 in this spreader, utilize electromagnet to fix this spreader direct adsorption on stainless steel support frame, wherein electric connection between electromagnet and the DSP controller still is connected with the pilot lamp at the control input of DSP controller, and the pilot lamp lights and can the early warning when electromagnet adsorbs firm back.

The main body of the transverse plate 1 of the spreader is made of stainless steel materials, a weight reduction groove is formed in the main body, aluminum alloy strips are filled in the weight reduction groove, the weight can be reduced, the strength can be increased, the main supporting plate 22 and the auxiliary supporting plate 37 are made of cast steel materials, and a titanium alloy layer is coated on the surface of the main supporting plate and the auxiliary supporting plate.

Example 2

The difference from example 1 is that: the surface of the main supporting plate 22 is coated with an antifouling coating, wherein the antifouling coating is prepared by the following process:

s1, selecting 40 parts of methyl trimethoxy silicon epoxy, 20 parts of phenyl trimethoxy silicon epoxy, 10 parts of stannous octoate, 8 parts of dibutyl tin dilaurate, 30 parts of xylene, 7 parts of pigment and filler, 70 parts of alumina-titanium oxide powder and 60 parts of copper-nickel alloy powder;

s2, ball-milling and mixing the alumina-titanium oxide powder and the copper-nickel alloy powder to obtain uniform composite powder, and ball-milling the composite powder until the granularity is 30 mu m;

s3, drying the composite powder to 100 ℃;

s4, carrying out rust removal and texturing treatment on the surface of the main supporting plate 22 by adopting an aerodynamic sand blasting method, wherein the sand blasting treatment selects 30-mesh white corundum or brown corundum, the pressure of compressed air is 0.3MPa during sand blasting, the sand blasting distance is 100mm, and the sand blasting angle is 65 degrees;

s5, mixing and dispersing methyl trimethoxy silicon epoxy, phenyl trimethoxy silicon epoxy and stannous octoate in a dispersion machine at 2000r/min for 10 min;

s6, adding dibutyl tin dilaurate, xylene and pigment and filler into the mixture obtained in S5, uniformly mixing, heating to 60 ℃, and keeping the temperature for 20min to obtain paint liquid;

and S7, uniformly coating the paint liquid obtained in the step S6 on the surface of the main supporting plate 22 treated in the step S4.

Example 3

The difference from example 2 lies in the preparation of the antifouling coating, wherein the preparation process of the antifouling coating is as follows:

s1, selecting 47 parts of methyl trimethoxy silicon epoxy, 18 parts of phenyl trimethoxy silicon epoxy, 12 parts of stannous octoate, 10 parts of dibutyl tin dilaurate, 20 parts of xylene, 12 parts of pigment and filler, 65 parts of alumina-titanium oxide powder and 55 parts of copper-nickel alloy powder;

s2, ball-milling and mixing the alumina-titanium oxide powder and the copper-nickel alloy powder to obtain uniform composite powder, and ball-milling the composite powder until the particle size is 25 mu m;

s3, drying the composite powder to a temperature of 110 ℃;

s4, derusting and roughening the surface of the main supporting plate 22 by using an aerodynamic sand blasting method, wherein the sand blasting method adopts 35-mesh white corundum or brown corundum, the pressure of compressed air is 0.4MPa during sand blasting, the sand blasting distance is 110mm, and the sand blasting angle is 80 degrees;

Example 4

s1, selecting 52 parts of methyl trimethoxy silicon epoxy, 11 parts of phenyl trimethoxy silicon epoxy, 12 parts of stannous octoate, 8 parts of dibutyl tin dilaurate, 18 parts of xylene, 15 parts of pigment and filler, 68 parts of alumina-titanium oxide powder and 55 parts of copper-nickel alloy powder;

s3, drying the composite powder to 113 ℃;

Example 5

s1, selecting 48 parts of methyltrimethoxy silicon epoxy, 13 parts of phenyl trimethoxy silicon epoxy, 15 parts of stannous octoate, 8 parts of dibutyl tin dilaurate, 18 parts of xylene, 15 parts of pigment and filler, 75 parts of alumina-titanium oxide powder and 61 parts of copper-nickel alloy powder;

s2, carrying out ball milling and mixing on the alumina-titanium oxide powder and the copper-nickel alloy powder to obtain uniform composite powder, and carrying out ball milling until the particle size is 28 microns;

s3, drying the composite powder to 107 ℃;

s4, derusting and roughening the surface of the main supporting plate 22 by using an aerodynamic sand blasting method, wherein the sand blasting method adopts 35-mesh white corundum or brown corundum, the pressure of compressed air is 0.5MPa during sand blasting, the sand blasting distance is 115mm, and the sand blasting angle is 80 degrees;

The antifouling coated main support plate 22 of examples 2-5 was tested for surface hardness and peel strength and for comparison, the data for all examples were normalized based on the data for example 2.

TABLE 1

	Surface hardness	Peel strength
			Example 2	100％	100％
Example 3	118％	124％
			Example 4	106％	115％
Example 5	112％	118％

As can be seen from the above, the method for preparing the antifouling coating given in example 3 is the most preferable choice because the test results of the surface hardness and peel strength of the antifouling coating on the surface of the main supporting plate 22 in example 3 are higher than those of other examples coated with antifouling coatings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a distractor that orthopedics was used, includes diaphragm (1), its characterized in that still includes:

the first fixed seat (11) is fixed at one end of the transverse plate (1);

the second fixed seat (12) is connected to the outer part of the transverse plate (1) in a sliding manner;

the expanding component (2) is arranged on the first fixed seat (11) and the second fixed seat (12);

disassembling the auxiliary supporting component (3) connected to the expanding component (2);

the identification component (4) is used for indicating the position of the second fixing seat (12) and the opening angle of the opening component (2);

a supporting seat (13) arranged on the transverse plate (1), wherein a sliding chute (14) is arranged in the supporting seat (13);

two groups of clamping components (5) arranged on the supporting seat (13);

and the power assembly (6) is used for driving the two groups of clamping assemblies (5) to close or separate.

2. The distractor for orthopedics as set forth in claim 1, wherein: strut subassembly (2) including L shape seat (21), owner fagging (22), slope supporting portion (23), double-screw bolt (24) and first adjusting bolt (25), L shape seat (21) set up first fixing base (11) with second fixing base (12) are distolateral, owner fagging (22) rotate to be connected on L shape seat (21), the cross-section of slope supporting portion (23) is for the triangle-shaped shape that has a fillet, double-screw bolt (24) are fixed the distolateral side of slope supporting portion (23), double-screw bolt (24) with threaded connection between the fagging, first adjusting bolt (25) with threaded connection between L shape seat (21), first adjusting bolt (25) tip with connect fixedly between owner fagging (22), it is in to assist subassembly (3) to set up on owner fagging (22).

3. The distractor for orthopedics as set forth in claim 2, wherein: the auxiliary supporting assembly (3) comprises a slot (31), inserting strips (32), dovetail strip portions (33), dovetail strip grooves (34), outward-extending pieces (35), compression bolts (36) and auxiliary supporting plates (37), the slot (31) is formed in the main supporting plate (22), the inserting strips (32) are inserted into the slot (31), the dovetail strip portions (33) are integrally formed among the inserting strips (32), the dovetail strip grooves (34) are formed in the main supporting plate (22) and are used for the insertion of the dovetail strip portions (33), the outward-extending pieces (35) are fixed to the outer portion of the main supporting plate (22), the compression bolts (36) are in threaded connection in the main supporting plate (22), and the auxiliary supporting plates (37) are fixed to the end portions of the inserting strips (32).

4. The distractor for orthopedics as set forth in claim 3, wherein: sign subassembly (4) are including sign board (41), densely covered distance identification line (42), fixed disk (43), pointer (44) and densely covered angle identification line (45), sign board (41) are fixed the surface of diaphragm (1), densely covered the distance is shown the line and is seted up respectively on sign board (41), fixed disk (43) are fixed first fixing base (11) with on second fixing base (12), the round mandrel of fixed disk (43) with the axis of rotation tip of main fagging (22) is concentric, pointer (44) are fixed be used for instructing on main fagging (22) the turned angle of main fagging (22), densely covered angle scale line is seted up respectively on fixed disk (43).

5. The distractor for orthopedics as set forth in claim 1, wherein: clamping component (5) include notch (51), two screw rods (52), two sliding blocks (53), two extension boards (54) and two splint (55), notch (51) are seted up in supporting seat (13) and with spout (14) run through each other, two screw rods (52) rotate through the bearing respectively and are connected in supporting seat (13), two sliding blocks (53) slide respectively and connect in spout (14), power component (6) are used for driving two screw rods (52) asynchronous rotation, two extension boards (54) are fixed respectively on sliding blocks (53), two extension boards (54) slide respectively and connect in notch (51), two splint (55) are fixed respectively two extension board (54) tip.

6. The distractor for orthopedics as set forth in claim 1, wherein: the power assembly (6) comprises an Contraband-shaped plate (61), a micro motor (62), a first bevel gear (63) and two second bevel gears (64), the Contraband-shaped plate (61) is fixed on the supporting seat (13), the micro motor (62) is fixed on the Contraband-shaped plate (61), the first bevel gear (63) is fixed at the end part of a motor shaft of the micro motor (62), the second bevel gears (64) are fixed at two ends, close to each other, of the screws (52), and the first bevel gear (63) is meshed with the second bevel gears (64) in a mutual meshing mode.

7. The distractor for orthopedics as set forth in claim 5, wherein: the top of the supporting seat (13) is in threaded connection with an outer extending rod (131), the outer portion of the outer extending rod (131) is in threaded connection with a supporting ring (132), and the supporting ring (132) is fixed on the transverse plate (1).

8. The distractor for orthopedics as set forth in claim 5, wherein: one of the clamping plate (55) is connected with a pressing plate (562) through a plurality of springs (561), two fixing rods (563) are symmetrically fixed on the one clamping plate (55), the two fixing rods (563) are respectively inserted into the other pressing plate (562), and the outer portions of the two fixing rods (563) are respectively in threaded connection with a pressing sleeve (564).

9. The distractor for orthopedics as set forth in claim 2, wherein: first fixing base (11) female connection has second adjusting bolt (111), the tip of second adjusting bolt (111) with on first fixing base (11) connect fixedly between L shape seat (21), be fixed with guide block (121) on second fixing base (12), guide way (122) have been seted up in diaphragm (1), guide block (121) slide and connect in guide way (122), second fixing base (12) female connection has third adjusting bolt (123).

10. The distractor for orthopedics as set forth in claim 3, wherein: the cross section of assisting fagging (37) is waist shape, assist have on fagging (37) with assist fagging (37) integrated into one piece's boss (371), have on boss (371) with boss (371) integrated into one piece collude and draw portion (372).