CN113133793B - An opener used in orthopedic surgery - Google Patents

Abstract

The invention discloses a spreader used in orthopaedic surgery. The main points of the technical solution are: comprising a transverse plate, and further comprising: a first fixing seat fixed on one end of the transverse plate; sliding connection outside the transverse plate the second fixing seat; the spreading assembly arranged on the first fixing seat and the second fixing seat; the auxiliary support assembly connected to the spreading assembly is disassembled; used to indicate the second fixing seat The identification assembly of the position and the opening angle of the opening assembly; the support seat installed on the horizontal plate, the support seat is provided with a chute; the two sets of clamping assemblies arranged on the support seat; and A power assembly for driving the two groups of the clamping assemblies to move closer or apart; the spreader has the advantages of being able to easily adjust the spread angle and spread distance, and the specific values of the spread angle and distance can be correctly indicated , has the advantages of reliable structure and flexible and convenient use.

Description

An opener used in orthopedic surgery

technical field

The present invention relates to the field of medical technology, and more particularly, to a distractor used in orthopedic surgery.

Background technique

When performing surgeries with many muscle tissues such as legs and arms, the skin needs to be incised to separate and stretch the muscles. At this time, a spreader is often used for operation. The main structure of the spreader is a horizontal plate, a A fixed brace and a sliding brace, and the length of the brace can be adjusted by adjusting the position of the sliding brace.

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

The above-mentioned cervical spreader has the advantages of reliable structure; however, the above-mentioned cervical spreader still has some disadvantages, such as: 1. The spreader cannot adjust the opening angle, and the opening angle and distance cannot be adjusted. No instructions; 2. The spreader can be fully and effectively fixed during use, which is inconvenient to use.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a distractor used in orthopedic surgery to solve the problems raised by the background art.

For achieving the above object, the present invention provides the following technical solutions:

A spreader used in orthopedic surgery, comprising a transverse plate, and further comprising:

a first fixing seat fixed on one end of the horizontal plate;

a second fixed seat slidably connected to the outside of the horizontal plate;

a spreader assembly arranged on the first fixing base and the second fixing base;

dismounting the auxiliary support assembly connected to the expansion assembly;

an identification component for indicating the position of the second fixing seat and the opening angle of the opening component;

a support seat installed on the horizontal plate, a chute is provided in the support seat;

two sets of clamping assemblies arranged on the support base;

and a power assembly for driving the two groups of the clamping assemblies to move closer or apart.

By adopting the above technical solution, the spreader has the advantages of being able to easily adjust the spread angle and spread distance, and the specific values of the spread angle and distance can be correctly indicated; in addition, the spreader can be used to The device is sufficiently and effectively fixed, which can facilitate the operation of the operator, overcomes the shortcomings of instability and swaying of the traditional opening, and has the advantages of reliable structure and flexible and convenient use.

Further, the spreader assembly includes an L-shaped seat, a main support plate, an inclined support portion, a stud and a first adjusting bolt, and the L-shaped seat is arranged at the ends of the first fixing seat and the second fixing seat The main support plate is rotatably connected to the L-shaped seat, the cross-section of the inclined support is a triangular shape with a rounded corner, and the stud is fixed on the end side of the inclined support, so The stud and the main support plate are threadedly connected, the first adjustment bolt is threadedly connected to the L-shaped seat, and the end of the first adjustment bolt is connected and fixed to the main support plate, The auxiliary support assembly is arranged on the main support plate.

By adopting the above-mentioned technical solution, the muscle tissue can be stretched by using the main support plate in the stretching assembly, and the position of one of the L-shaped seats and the main support plate can be adjusted by pulling the second fixed seat to slide. Therefore, the inclined support part can be easily disassembled from the end side of the main support plate, and when the operator rotates the first adjusting bolt, the angle of the main support plate can be adjusted, which is convenient to use and has a reliable structure.

Further, the auxiliary support assembly includes a slot, an insert, a dovetail portion, a dovetail slot, an overhang, a pressing bolt and an auxiliary support plate, and the slot is opened in the inclined support portion, and the insert The strip is inserted into the slot, the dovetail strip part and the insert strip are integrally formed, the dovetail strip groove is opened in the inclined support part for the insertion of the dovetail strip part, and the overhanging piece It is fixed outside the inclined support part, the pressing bolt is screwed in the inclined support part, and the auxiliary support plate is fixed at the end of the cutting strip.

By adopting the above technical solution, when the narrow part of human tissue needs to be stretched, the operator can insert the slot into the slot, insert the dovetail strip into the dovetail strip groove, and then the operator can press the bolt on the outrigger Tightening, so that the dovetail strip can be stably fixed on the main support plate, and the auxiliary support plate at the end of the dovetail strip can achieve the effect of auxiliary expansion, making it more suitable for the expansion of relatively narrow human tissues.

Further, the identification assembly includes an identification plate, a densely distributed distance identification line, a fixed disk, a pointer and a densely distributed angle identification line, the identification plate is fixed on the surface of the horizontal plate, and the densely distributed distance identification lines are respectively opened. On the identification plate, the fixed plate is fixed on the first fixed seat and the second fixed seat, the central axis of the fixed plate is concentric with the end of the rotation axis of the main support plate, the The pointer is fixed on the main support plate to indicate the rotation angle of the main support plate, and the densely distributed angle identification lines are respectively opened on the fixed plate.

By adopting the above technical solution, the adjustment of the opening angle and the position can be realized by using the marking assembly, for example, the position of the second fixing seat can be adjusted by using the distance marking line on the marking plate, and the position of the second fixing seat can be adjusted by using the fixing plate and the pointer. The angle of the main support plate is indicated, which can facilitate the positioning.

Further, the clamping assembly includes a slot, two screws, two sliding blocks, two extension plates and two clamping plates, the slot is opened in the support seat and penetrates through the chute, The two screw rods are respectively connected in the support seat through bearings, and the two sliding blocks are respectively connected in the sliding groove. The power assembly is used to drive the two screw rods to rotate asynchronously. The extension plates are respectively fixed on the sliding block, the two extension plates are respectively slidably connected in the slots, and the two clamping plates are respectively fixed at the ends of the two extension plates.

By adopting the above technical solution, when the power assembly drives the two screws to rotate, it can drive the two sliding blocks to approach each other or the principle, so as to drive the extension plate and the splint on the two sliding blocks to approach or move away from each other, so that the support can be realized. The seat is firmly clamped and fixed, thereby facilitating the fixing of the device.

Further, the power assembly includes an indented plate, a micro motor, a first bevel gear and two second bevel gears, the indented plate is fixed on the support seat, and the micro motor is fixed on the On the indented plate, the first bevel gear is fixed on the end of the motor shaft of the micro motor, the two second bevel gears are fixed on the ends of the two screws that are close to each other, the first bevel gear is The bevel gear meshes with the two second bevel gears.

By adopting the above technical solution, when the micro motor on the concave plate in the power assembly starts, it can drive the first bevel gear to rotate, and the meshing between the first bevel gear and the two second bevel gears can drive the The two screws act asynchronously.

Further, an overhang rod is threadedly connected to the top of the support base, and a support ring is threadedly connected to the outside of the overhang rod, and the support ring is fixed on the horizontal plate.

By adopting the above technical solution, the disassembly of the horizontal plate and the supporting seat can be conveniently realized by utilizing the outrigger rod and the support ring on the supporting seat, so that the use of the horizontal plate can be facilitated.

Further, a pressure plate is connected to one of the clamping plates through a plurality of springs, and two fixing rods are symmetrically fixed on one of the clamping plates, and the two fixing rods are respectively inserted into the other pressure plate, and the two fixing rods are respectively inserted into the other pressure plate. A compression sleeve is respectively threadedly connected to the outside of the fixing rod.

By adopting the above technical solution, the fixing effect of the support seat can be improved by using the pressure plate connected to the clamping plate by the spring. Tighten the sleeve, so that the device can be securely fixed.

Further, the first fixing seat is internally threaded with a second adjusting bolt, and the end of the second adjusting bolt is connected and fixed with the L-shaped seat on the first fixing seat. A guide block is fixed on the fixed seat, a guide groove is formed in the horizontal plate, the guide block is slidably connected in the guide groove, and a third adjustment bolt is threadedly connected in the second fixed seat.

By adopting the above technical solution, when the operator rotates the second adjusting bolt on the first fixing seat, it can drive the L-shaped seat to rotate by a certain angle, so that the L-shaped seat on the first fixing seat can be adjusted by a certain angle. Adjustment, when the angle of the L-shaped seat on the first fixed seat is adjusted, it can drive the main support plate to adjust the angle forward and backward, and when the operator pushes the second fixed seat to slide, it can drive the guide block to slide in the guide groove , the second fixing seat can be fixed by tightening the second adjusting bolt, which is convenient for sufficient locking.

Further, the cross section of the auxiliary support plate is waist-shaped, the auxiliary support plate has a reinforcing block integrally formed with the auxiliary support plate, and the reinforcing block has a hook and pull integrally formed with the reinforcing block. department.

By adopting the above technical solution, the auxiliary support plate with the waist-shaped cross-section can assist in propping up the muscle tissue, and the reinforcing block and the hook-pulling part on it can improve the ability to fix the tissue on one side.

To sum up, the present invention mainly has the following beneficial effects:

The spreader has the advantages of being able to easily adjust the spread angle and spread distance, and the specific values of the spread angle and distance can be correctly indicated; in addition, the spreader can be fully and effectively fixed during use, The utility model can facilitate the operation of the operator, overcome the shortcomings of the instability and sway of the traditional opening, and has the advantages of reliable structure and flexible and convenient use.

Description of drawings

1 is one of the schematic structural diagrams of an embodiment provided by the present invention;

Fig. 2 is the enlarged structural representation of part A in Fig. 1;

Fig. 3 is the enlarged structural representation of B part in Fig. 1;

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

Fig. 5 is the enlarged structural representation of C part in Fig. 4;

6 is a structural cross-sectional view of an embodiment provided by the present invention;

Fig. 7 is the enlarged structural schematic diagram of D part in Fig. 6;

FIG. 8 is a structural cross-sectional view of the first fixing seat in an embodiment provided by the present invention.

In the figure: 1. Horizontal plate; 11. First fixing seat; 12. Second fixing seat; 2. Spreading component; 3. Auxiliary support component; 4. Marking component; 13. Support seat; , clamping assembly; 6, power assembly; 21, L-shaped seat; 22, main support plate; 23, inclined support part; 24, stud; 25, first adjusting bolt; 31, slot; 32, insert; 33, dovetail section; 34, dovetail groove; 35, outrigger; 36, compression bolt; 37, auxiliary support plate; 41, marking plate; 42, distance marking line; 43, fixed plate; 44, pointer; 45, angle marking line; 51, notch; 52, screw rod; 53, sliding block; 54, extension plate; 55, splint; 61, grooved plate; 62, micro motor; 63, the first bevel gear; The second bevel gear; 131, the outrigger rod; 132, the support ring; 561, the spring; 562, the pressure plate; 563, the fixing rod; Guide groove; 123, third adjusting bolt; 371, reinforcing block; 372, hook and pull part.

Detailed ways

Example:

The present invention will be described in further detail below in conjunction with accompanying drawings 1-8.

Example 1

As shown in Figure 1, Figure 4 and Figure 6, a distractor used in orthopedic surgery is mainly composed of the following parts:

As the horizontal plate 1 supported by the main body, the horizontal plate 1 is constructed of stainless steel;

The first fixing seat 11 fixed on one end of the horizontal plate 1, wherein the first fixing seat 11 is fixed by welding, riveting, bolts, etc.;

slidingly connected to the second fixing seat 12 outside the horizontal plate 1, wherein the second fixing seat 12 is stuck on the outside of the horizontal plate 1 to slide;

The stretching assembly 2 arranged on the first fixing base 11 and the second fixing base 12 can assist the stretching of muscle tissue and skin by using the stretching assembly 2;

Dismantle the auxiliary support assembly 3 connected to the expansion assembly 2, and the arrangement of the auxiliary support assembly 3 can ensure the expansion at the narrow tissue;

The identification assembly 4 used to indicate the position of the second fixing seat 12 and the opening angle of the expansion assembly 2, and the opened angle and position can be identified by the identification assembly 4;

The support base 13 installed on the horizontal plate 1, wherein a chute 14 is opened in the support base 13;

Two sets of clamping assemblies 5 are arranged on the support base 13 for fixing the spreader, and the clamping assemblies 5 can facilitate the installation and fixation of the support base 13;

and a power assembly 6 for driving the two groups of clamping assemblies 5 to move closer or apart, and the power assembly 6 can be used to assist in fixing.

Referring to Fig. 1, Fig. 4 and Fig. 6, the spreader has the advantage of being able to easily adjust the spread angle and spread distance, and the specific values of the spread angle and distance can be correctly indicated; in addition, this spreader It can be fully and effectively fixed when in use, which is convenient for the operator to operate, overcomes the shortcomings of unstable and swaying of the traditional opening, and has the advantages of reliable structure and flexible and convenient use.

Referring to Fig. 1, Fig. 2 and Fig. 8, in order to fully open the muscle tissue or skin, and to ensure the ease of use of the spreader, the spreader assembly 2 includes an L-shaped seat 21, a main support The plate 22 , the inclined support part 23 , the stud 24 and the first adjusting bolt 25 , the L-shaped seat 21 is arranged on the end side of the first fixing seat 11 and the second fixing seat 12 , and the main support plate 22 is rotatably connected to the L-shaped seat 21 , the cross section of the inclined support part 23 is a triangular shape with a rounded corner, the stud 24 is fixed on the end side of the inclined support part 23, the stud 24 is screwed with the main support plate 22, and the first adjustment bolt 25 is connected to the L The bases 21 are threadedly connected, the end of the first adjusting bolt 25 is connected and fixed with the main support plate 22, and the auxiliary support assembly 3 is arranged on the main support plate 22; To stretch the muscle tissue, the position of one of the L-shaped seats 21 and the main support plate 22 can be adjusted by pulling the second fixed seat 12 to slide. The end side of the support plate 22 is disassembled, and when the operator rotates the first adjusting bolt 25, the angle of the main support plate 22 can be adjusted, which is convenient to use and has a reliable structure.

Referring to Figure 1, Figure 2 and Figure 3, in order to facilitate muscle and skin expansion at the narrow tissue, the auxiliary support assembly 3 provided includes a slot 31, an insert 32, a dovetail portion 33, a dovetail groove 34, an outrigger. The sheet 35, the pressing bolt 36 and the auxiliary support plate 37, the slot 31 is opened in the inclined support part 23, the insert strip 32 is inserted into the slot 31, the dovetail strip part 33 and the insert strip 32 are integrally formed, and the dovetail strip is integrally formed. The slot 34 is opened in the inclined support part 23 for the insertion of the dovetail part 33 , the overhanging piece 35 is fixed on the outside of the inclined support part 23 , the pressing bolt 36 is screwed in the inclined support part 23 , and the auxiliary support plate 37 is fixed on the insert 32 When the narrow part of human tissue needs to be stretched, the operator can insert the slot 31 into the slot 31, insert the dovetail portion 33 into the dovetail slot 34, and then the operator can insert the The compression bolt 36 is tightened, so that the dovetail portion 33 can be stably fixed on the main support plate 22, and the auxiliary support plate 37 at the end of the dovetail portion 33 can be used to achieve the effect of auxiliary expansion, making it more suitable for relatively narrow of human tissue.

Referring to Figure 1, Figure 3 and Figure 4, in order to mark the position of the second fixing base 12, and mark the angle of the main support plate 22, the set mark assembly 4 includes a mark plate 41, a densely distributed distance mark line 42, a fixed mark The disc 43, the pointer 44 and the densely clothed angle marking lines 45, the marking plate 41 is fixed on the surface of the horizontal plate 1, the densely clothed distance marking lines 42 are respectively opened on the marking plate 41, and the fixed plate 43 is fixed on the first fixing seat 11 and the first fixing seat 11. On the two fixed bases 12, the central axis of the fixed plate 43 is concentric with the end of the rotating shaft of the main support plate 22, the pointer 44 is fixed on the main support plate 22 to indicate the rotation angle of the main support plate 22, and the densely distributed angle marking line 45 They are respectively set on the fixed plate 43; the adjustment of the opening angle and the position can be realized by using the identification assembly 4, for example, the position of the second fixed seat 12 can be adjusted by using the distance identification line 42 on the identification plate 41, and by using The fixed plate 43 and the pointer 44 can indicate the angle of the main support plate 22, which can facilitate positioning.

4 , 5 and 6 , in order to ensure that the support base 13 can be fully fixed, the provided clamping assembly 5 includes a slot 51 , two screws 52 , two sliding blocks 53 , two extension plates 54 and two The splint 55 and the slot 51 are opened in the support seat 13 and penetrate each other with the chute 14, the two screws 52 are respectively connected in the support seat 13 through the bearing rotation, and the two sliding blocks 53 are respectively slidingly connected in the chute 14, The power assembly 6 is used to drive the two screws 52 to rotate asynchronously, the two extension plates 54 are respectively fixed on the sliding block 53, the two extension plates 54 are respectively slidably connected in the slot 51, and the two clamping plates 55 are respectively fixed on the two The end of the extension plate 54; when the power assembly 6 drives the two screws 52 to rotate, it can drive the two sliding blocks 53 to approach each other or the principle, so as to drive the extension plate 54 and the splint 55 on the two sliding blocks 53 to approach or move away from each other , so that the support seat 13 can be firmly clamped and fixed, thereby facilitating the fixing of the device.

6 and 7, in order to promote the two screws 52 to approach or move away from each other, the provided power assembly 6 includes a concave plate 61, a micro motor 62, a first bevel gear 63 and two second bevel gears 64. The shaped plate 61 is fixed on the support base 13, the micro motor 62 is fixed on the grooved plate 61, the first bevel gear 63 is fixed on the end of the motor shaft of the micro motor 62, and the two second bevel gears 64 are fixed on the two At one end of the screw 52 close to each other, the first bevel gear 63 and the two second bevel gears 64 mesh with each other; when the micro motor 62 on the concave plate 61 in the power assembly 6 is activated, it can drive the first bevel gear 62. The bevel gear 63 rotates, and the two screws 52 can be driven to move asynchronously through the meshing between the first bevel gear 63 and the two second bevel gears 64 .

Referring to FIGS. 1 and 4 , an outrigger rod 131 is threadedly connected to the top of the support base 13 , a support ring 132 is threadedly connected to the outside of the outrigger rod 131 , and the support ring 132 is fixed on the horizontal plate 1 . The overhanging rod 131 and the support ring 132 on the top can facilitate the disassembly of the horizontal plate 1 and the support base 13 , so as to facilitate the use of the horizontal plate 1 .

4 and 5, in order to improve the clamping effect, a pressure plate 562 is connected to one of the splints 55 through a plurality of springs 561, and two fixed rods 563 are symmetrically fixed on one of the splints 55, and the two fixed rods 563 are respectively interspersed. In the other pressing plate 562, a pressing sleeve 564 is threadedly connected to the outside of the two fixing rods 563. The pressing plate 562 connected to the clamping plate 55 through the spring 561 can improve the fixing effect of the support seat 13. When the spring 561 pushes the dynamic pressing plate When pressing the device 562 onto the support, the operator can tighten the pressing sleeve 564 outside the fixing rod 563, so that the device can be firmly fixed.

Referring to FIGS. 2 , 4 and 8 , in order to achieve the purpose of adjusting the angle of the main support plate 22 in the front-rear direction, a second adjusting bolt 111 is threadedly connected in the first fixing seat 11 , and the end of the second adjusting bolt 111 is threaded. It is connected and fixed with the L-shaped seat 21 on the first fixed seat 11. In order to fully lock the second fixed seat 12, a guide block 121 is fixed on the second fixed seat 12, and a guide groove is opened in the horizontal plate 1. 122, the guide block 121 is slidably connected in the guide groove 122, and a third adjusting bolt 123 is threadedly connected in the second fixing seat 12. When the operator rotates the second adjusting bolt 111 on the first fixing seat 11, it is It can drive the L-shaped seat 21 to rotate a certain angle, so that the L-shaped seat 21 on the first fixed seat 11 can be adjusted to a certain angle. It can drive the main support plate 22 to adjust the angle forward and backward. When the operator pushes the second fixing seat 12 to slide, it can drive the guide block 121 to slide in the guide groove 122. By tightening the second adjusting bolt 111, the second fixing seat can be adjusted. 12's fixation for full locking.

Referring to FIG. 8 , in order to improve the fixing effect of the gripping muscles and the skin, the cross-section of the auxiliary support plate 37 is waist-shaped, and the auxiliary support plate 37 has a reinforcing block 371 integrally formed with the auxiliary support plate 37 , and the reinforcing block 371 has a The hook-and-pull portion 372 integrally formed with the reinforcement block 371 and the auxiliary support plate 37 with a waist-shaped cross-section can assist in spreading the muscle tissue, and the reinforcement block 371 and the hook-and-pull portion 372 thereon can improve the ability of unilaterally fixing tissue.

The two main support plates 22 in the spreader are respectively embedded with pressure sensors, and a DSP controller, a display and an alarm are fixed above the horizontal plate 1, wherein the pressure sensor and the control input end of the DSP controller Electrical connection, the display and the alarm are respectively electrically connected to the control output end of the DSP controller. When the pressure sensor senses the pressure of stretching the muscle or skin, it can be displayed on the display, which is convenient for doctors to understand the stretching pressure. size to prevent slow recovery in the later stage due to stretched muscles or excessive skin pressure.

An electromagnetic chuck is installed on the wall of the support base 13 in the spreader, and the spreader can be directly adsorbed and fixed on the stainless steel support frame by using the electromagnetic chuck, wherein the electromagnetic chuck and the DSP controller are electrically connected, and the The control input end of the DSP controller is also connected with an indicator light. When the electromagnetic sucker is firmly adsorbed, the indicator light is on to give an early warning.

The main body of the horizontal plate 1 of the spreader is made of stainless steel, and a weight reduction groove is opened inside, and the aluminum alloy strips are filled in the weight reduction groove, which can reduce the weight and increase the strength. The main support plate 22 and the auxiliary support plate 37 are all cast steel materials with a titanium alloy layer on the surface.

Example 2

The difference from Example 1 is that a layer of antifouling coating is applied on the surface of the main support plate 22, wherein the preparation process of the antifouling coating is as follows:

S1, select 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, and 7 parts of pigments and fillers , 70 parts of alumina-titanium oxide powder, 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 a uniform composite powder, which is ball-milled to a particle size of 30 μm;

S3, drying the composite powder to a temperature of 100°C;

S4. Use aerodynamic sandblasting to remove rust and texture the surface of the main support plate 22. For sandblasting, use 30-mesh white corundum or brown corundum. The pressure of the compressed air during sandblasting is 0.3MPa, and the sandblasting distance is 100mm. The sandblasting angle is 65°;

S5. Mix and disperse methyl trimethoxy silicon epoxy, phenyl trimethoxy silicon epoxy and stannous octoate in a dispersing machine at 2000 r/min for 10 min;

S6, adding dibutyltin dilaurate, xylene, pigment and filler to the mixture obtained in S5 and mixing evenly, heating to 60° C. and keeping the temperature for 20min to obtain paint liquid;

S7. Evenly apply the paint solution obtained in S6 to the surface of the main support plate 22 treated in S4.

Example 3

The difference with Example 2 is the preparation of the antifouling coating, wherein the preparation process of the antifouling coating is as follows:

S1. Select 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, and 12 parts of pigments and fillers , 65 parts of alumina-titanium oxide powder, 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 a uniform composite powder, which is ball-milled to a particle size of 25 μm;

S3, drying the composite powder to a temperature of 110°C;

S4. Use aerodynamic sandblasting to remove rust and texture the surface of the main support plate 22. For sandblasting, use 35 mesh white corundum or brown corundum. The pressure of the compressed air during sandblasting is 0.4MPa, and the sandblasting distance is 110mm. The sandblasting angle is 80°;

S5. Mix and disperse methyl trimethoxy silicon epoxy, phenyl trimethoxy silicon epoxy and stannous octoate in a dispersing machine at 2000 r/min for 10 min;

S6, adding dibutyltin dilaurate, xylene, pigment and filler to the mixture obtained in S5 and mixing evenly, heating to 60° C. and keeping the temperature for 20min to obtain paint liquid;

S7. Evenly apply the paint solution obtained in S6 to the surface of the main support plate 22 treated in S4.

Example 4

The difference with Example 2 is the preparation of the antifouling coating, wherein the preparation process of the antifouling coating is as follows:

S1, select 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, and 15 parts of pigments and fillers , 68 parts of alumina-titanium oxide powder, 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 a uniform composite powder, which is ball-milled to a particle size of 25 μm;

S3, drying the composite powder to a temperature of 113°C;

S4. Use aerodynamic sandblasting to remove rust and texture the surface of the main support plate 22. For sandblasting, use 35 mesh white corundum or brown corundum. The pressure of the compressed air during sandblasting is 0.4MPa, and the sandblasting distance is 110mm. The sandblasting angle is 80°;

S5. Mix and disperse methyl trimethoxy silicon epoxy, phenyl trimethoxy silicon epoxy, and stannous octoate in a disperser at 2000 r/min for 10 minutes;

S6, adding dibutyltin dilaurate, xylene, pigment and filler to the mixture obtained in S5 and mixing evenly, heating to 60° C. and keeping the temperature for 20min to obtain paint liquid;

S7. Evenly apply the paint solution obtained in S6 to the surface of the main support plate 22 treated in S4.

Example 5

The difference with Example 2 is the preparation of the antifouling coating, wherein the preparation process of the antifouling coating is as follows:

S1. Select 48 parts of methyltrimethoxysilyl epoxy, 13 parts of phenyltrimethoxysilyl epoxy, 15 parts of stannous octoate, 8 parts of dibutyltin dilaurate, 18 parts of xylene, and 15 parts of pigments and fillers , 75 parts of alumina-titanium oxide powder, 61 parts of copper-nickel alloy powder;

S2. Ball-milling and mixing the alumina-titanium oxide powder and the copper-nickel alloy powder to obtain a uniform composite powder, which is ball-milled to a particle size of 28 μm;

S3, drying the composite powder to a temperature of 107°C;

S4. Use aerodynamic sandblasting to remove rust and texture the surface of the main support plate 22. For sandblasting, use 35-mesh white corundum or brown corundum. The pressure of compressed air during sandblasting is 0.5MPa, and the sandblasting distance is 115mm. The sandblasting angle is 80°;

S5. Mix and disperse methyl trimethoxy silicon epoxy, phenyl trimethoxy silicon epoxy, and stannous octoate in a disperser at 2000 r/min for 10 minutes;

S6, adding dibutyltin dilaurate, xylene, pigment and filler to the mixture obtained in S5 and mixing evenly, heating to 60° C. and keeping the temperature for 20min to obtain paint liquid;

S7. Evenly apply the paint solution obtained in S6 to the surface of the main support plate 22 treated in S4.

Surface hardness and peel strength were tested on the main stay plate 22 coated with the antifouling coating in Examples 2-5. For the convenience of comparison, the data of all examples are normalized based on the data of 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, since the test results of the surface hardness and peel strength of the antifouling coating on the surface of the main support plate 22 in Example 3 are higher than those of other examples coated with the antifouling coating, it is given in Example 3. The preparation method of the antifouling coating is the best choice.

This specific embodiment is only an explanation of the present invention, and it does not limit the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as needed after reading this specification, but as long as the rights of the present invention are used All claims are protected by patent law.

Claims (5)

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);

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

the strutting assembly (2) 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 the first fixed seat (11) and the second fixed seat (12), the main supporting plate (22) is rotationally connected to the L-shaped seat (21), the cross section of the inclined supporting part (23) is in a triangular shape with a round angle, the stud (24) is fixed at the end side of the inclined support part (23), the stud (24) is in threaded connection with the main supporting plate (22), 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 supporting assembly (3) is arranged on the main supporting plate (22);

the auxiliary supporting assembly (3) comprises a slot (31), a plug strip (32), a dovetail strip portion (33), a dovetail strip groove (34), an outward-extending sheet (35), a pressing bolt (36) and an auxiliary supporting plate (37), the slot (31) is formed in the inclined supporting portion (23), the plug strip (32) is inserted in the slot (31), the dovetail strip portion (33) and the plug strip (32) are integrally formed, the dovetail strip groove (34) is formed in the inclined supporting portion (23) and is used for the insertion of the dovetail strip portion (33), the outward-extending sheet (35) is fixed to the outer portion of the inclined supporting portion (23), the pressing bolt (36) is in the inclined supporting portion (23) in a threaded mode, and the auxiliary supporting plate (37) is fixed to the end portion of the plug strip (32);

the identification component (4) comprises an identification plate (41), densely distributed distance identification lines (42), a fixed disc (43), pointers (44) and densely distributed angle identification lines (45), the identification plate (41) is fixed on the surface of the transverse plate (1), the densely distributed distance identification lines (42) are arranged on the identification plate (41), the fixed disc (43) is fixed on the first fixing seat (11) and the second fixing seat (12), a round mandrel of the fixed disc (43) is concentric with the end part of a rotating shaft of the main supporting plate (22), the pointers (44) are 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 identification lines (45) are respectively arranged on the fixed disc (43);

a second adjusting bolt (111) is connected with the first fixing seat (11) in an internal thread manner, the end part of the second adjusting bolt (111) is fixedly connected with the L-shaped seat (21) on the first fixing seat (11), a guide block (121) is fixed on the second fixing seat (12), a guide groove (122) is formed in the transverse plate (1), the guide block (121) is connected in the guide groove (122) in a sliding manner, and a third adjusting bolt (123) is connected with the second fixing seat (12) in an internal thread manner;

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).

2. 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.

3. The distractor for orthopedics as claimed in claim 2, 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.

4. The distractor for orthopedics as set forth in claim 2, 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).

5. The distractor for orthopedics as claimed in claim 2, wherein: one of them splint (55) are gone up and are connected with clamp plate (562) through a plurality of spring (561), and one of them splint (55) are gone up the symmetry and are fixed with two dead lever (563), two dead lever (563) alternate respectively in another clamp plate (562), the outside of two dead lever (563) threaded connection respectively has compressing sleeve (564).

Images