阅读说明：本技术 医用钛合金骨骼固定夹及其制造方法 (Medical titanium alloy bone fixing clamp and manufacturing method thereof ) 是由 程军 余森 张文 刘汉源 王昌 韩建业 袁思波 王岚 郝雪强 于 2021-08-03 设计创作，主要内容包括：本发明属于医疗设备技术领域,涉及一种医用钛合金骨骼固定夹,它包括第一合金夹和第二合金夹,所述的第二合金夹后侧端位置固定安装设置有弹性片,所述的第二合金夹后侧端位置开设有安置槽,所述的第二合金夹后侧端位置开设有穿孔,穿孔与弹性片契合,所述的第一合金夹内部位置穿插设置有固定螺栓,所述的第一合金夹内部位置活动穿插设置有第一转轴。本发明第一齿轮转动时带动第二齿轮转动,从而使得转盘转动,将弹性片缠绕在转盘外侧,从而将弹性片抱箍固定在断骨外侧,从而固定主体,使得断骨之间位置对齐固定,方便断骨的愈合工作,同时安装时无需在断骨上开孔,防止二次伤害。(The invention belongs to the technical field of medical equipment, and relates to a medical titanium alloy skeleton fixing clamp which comprises a first alloy clamp and a second alloy clamp, wherein an elastic sheet is fixedly arranged at the rear side end of the second alloy clamp, a placing groove is formed in the rear side end of the second alloy clamp, a through hole is formed in the rear side end of the second alloy clamp, the through hole is matched with the elastic sheet, a fixing bolt is inserted in the first alloy clamp, and a first rotating shaft is movably inserted in the first alloy clamp. According to the invention, the first gear drives the second gear to rotate when rotating, so that the rotary table rotates, the elastic sheet is wound on the outer side of the rotary table, and the elastic sheet hoop is fixed on the outer side of the broken bone, so that the main body is fixed, the positions of the broken bones are aligned and fixed, the broken bone healing work is facilitated, meanwhile, holes do not need to be formed on the broken bone during installation, and secondary injury is prevented.)

1. A medical titanium alloy skeleton fixation clamp comprises a first alloy clamp (1) and a second alloy clamp (3), and is characterized in that an elastic sheet (4) is fixedly arranged at the rear end of the second alloy clamp (3), a placement groove (12) is formed in the rear end of the second alloy clamp (3), a through hole (8) is formed in the rear end of the second alloy clamp (3), the through hole (8) is matched with the elastic sheet (4), a fixing bolt (2) is inserted in the inner position of the first alloy clamp (1), a first rotating shaft (6) is movably inserted in the inner position of the first alloy clamp (3), a first gear (11) is fixedly arranged at the outer end of the first rotating shaft (6) in a surrounding manner, a second rotating shaft (7) is movably inserted in the inner position of the first alloy clamp (3), second pivot (7) outside position encircle and fixedly be provided with carousel (10), carousel (10) inside position seted up draw-in groove (13), draw-in groove (13) are the T type, second pivot (7) outside position encircle and fixedly be provided with second gear (9).

2. The bottom-opening-preventing reinforced packaging container as claimed in claim 1, wherein a limiting mechanism (22) is arranged on the inner side wall of the first alloy clamp (1), the limiting mechanism (22) comprises a limiting block (19), a first spring (21) and a limiting tooth (20), the inner side wall of the first alloy clamp (1) is fixedly provided with the limiting block (19), the limiting block (19) is movably arranged at the inner side end position and is provided with the limiting tooth (20), the other side of the limiting tooth (20) is movably clamped outside the first gear (11), and the limiting tooth (20) and the first alloy clamp (1) are fixedly connected and provided with the first spring (21).

3. The bottom-opening-resistant reinforced packaging container as recited in claim 1, a clamp and a mechanism (5) are fixedly arranged at the other end position of the elastic sheet (4), the clamping and mechanism (5) comprises a cavity (18), a baffle plate (14), a second spring (16), a movable plate (15) and a clamping block (17), a cavity (18) is arranged in the elastic sheet (4), baffle plates (14) are vertically and fixedly arranged at the upper side end and the lower side end in the cavity (18), the baffle plates (14) divide the cavity (18) into two parts which are symmetrical left and right, movable plates (15) are movably clamped and arranged at both sides in the cavity (18), and a second spring (16) is fixedly connected between the movable plates (15), and a clamping block (17) is fixedly connected to one side of each movable plate (15).

4. The bottom-opening prevention reinforced packaging container as recited in claim 1, wherein the elastic sheet (4) is made of titanium alloy, and the elastic sheet (4) has an arc shape.

5. The bottom-opening-preventive reinforced packaging container as claimed in claim 1, wherein said fixing bolt (2) is positioned at one side end inside said seating groove (12), and the side of said cap nut is sealed by titanium alloy welding after completion of the installation.

6. The bottom-opening-preventing reinforced packaging container as recited in claim 1, wherein the top end of the first shaft (6) extends to the outside of the first alloy holder (3), and a cross-shaped groove is formed at the top end of the first shaft (6).

7. Reinforced packaging container against bottom opening according to claim 1, characterized in that said second toothed wheel (9) is engaged with said first toothed wheel (11).

8. The bottom-opening-preventing reinforced packaging container as claimed in claim 2, wherein the latch (17) movably extends to the outside of the elastic sheet (4), and the latch (17) is engaged with the latch groove (13).

9. The bottom-opening preventive reinforced packaging container as claimed in claim 2, wherein said baffle plate (14) divides the cavity (18) into left and right symmetrical parts.

10. The method for manufacturing a medical titanium alloy bone fixation clamp according to any one of claims 1 to 9, comprising the following steps:

the first step is as follows: preparing raw materials, namely taking 0.5-1 wt% of Al, 0.8-1.5 wt% of Zn, 0.2-0.5 wt% of Mg, 2-4 wt% of Cu, 1-2 wt% of Ni, 0.5-0.8 wt% of Zr, 0.1-0.3 wt% of Nb, 0.7-1.8 wt% of Si and the balance of Ti raw materials.

The second step is that: mixing, namely adding the raw materials into mixing equipment in proportion, vacuumizing the interior of the mixing equipment, preventing the reaction of partial raw materials and gas in the interior from being consumed during high-temperature mixing to cause proportion change, simultaneously preventing the mixture after the reaction with the gas from influencing alloy components, stirring and mixing through the mixing equipment and preheating, then gradually heating to 1500-2000 ℃, completing material mixing within 10-30 minutes, and preserving heat for later use.

The third step: pouring and forming, namely injecting the melted alloy into the mold, and then cooling and forming the alloy in the mold to form the required shape.

The fourth step: cleaning, cooling the formed titanium alloy product, vibrating and separating mold sand by using a shakeout machine to obtain an alloy product, polishing the titanium alloy product to remove burrs of the product, washing the titanium alloy product by using flowing clear water to remove redundant sand on the outer surface, then placing the titanium alloy product in a drying box, and quickly drying at 80-100 ℃.

The fifth step: and nitriding, namely placing the cleaned titanium alloy product in ammonia gas or nitrogen gas under one atmospheric pressure, raising the treatment temperature to 800-1000 ℃, and treating for 2-3 hours, thereby obviously improving the fatigue resistance of the treated titanium alloy product and improving the fatigue resistance by 20-35 wt%.

And a sixth step: installation, firstly, a first gear (11) which is manufactured is welded on the outer side of a first rotating shaft (6) in a surrounding way, then the first rotating shaft (6) is movably clamped inside a first alloy clamp (1), meanwhile, a second gear (9) and a rotating disc (10) are welded on the outer side of a second rotating shaft (7) in a surrounding way, then the second rotating shaft (7) is movably arranged inside the first alloy clamp (1), meanwhile, the first gear (11) and the second gear (9) are meshed, after the installation is finished, an elastic sheet (4) is grooved, then a clamping mechanism (5) is arranged inside the elastic sheet (4), then, an exposed position is welded and closed, a cavity (18) is formed at the groove position, then, a limiting tooth (20) is movably arranged through a pin shaft, a second spring (16) is welded and fixed, after the completion, the first alloy clamp (1) and the second alloy clamp (3) are jointed to form a main body, pass the cooperation nut through fixing bolt (2) and fix, accomplish fixed back, fixing nut one end is through welded seal, prevents to press from both sides (1) and the separation of second alloy clamp (3) that cause because the nut breaks away from during the use, and whole equipment fixing is accomplished.

Technical Field

The invention belongs to the technical field of medical equipment, and relates to a medical titanium alloy bone fixing clamp and a manufacturing method thereof.

Background

Medical titanium alloys are used for the manufacture of medical devices, prostheses or artificial organs for implantation in the human body and for auxiliary therapeutic equipment. Mainly comprises alloys of titanium 6 aluminum 4 vanadium, titanium 5 aluminum 2.5 tin and the like. They have high specific strength, mechanical property close to human bone, strength far superior to pure titanium, and also have the characteristics of fatigue resistance, corrosion resistance, excellent biocompatibility and the like.

When the skeleton is broken and is missing, the position is ensured that the skeleton can be normally healed and connected, the titanium alloy skeleton is required to be fixed, so that the aligned growth and closure of the skeletons on the two sides are ensured, but the existing titanium alloy skeleton is required to be fixed on the healthy skeleton by bolts, so that secondary damage is caused by opening holes in the skeleton, part of the titanium alloy skeleton is required to be detached after the skeleton is closed, part of the skeleton after the growth is required to be damaged, the recovery time of the skeleton is prolonged, and meanwhile, the skeleton with the bolt fixed position can be healed after being detached.

Disclosure of Invention

The invention aims to solve the problems and provides a medical titanium alloy bone fixing clamp and a manufacturing method thereof.

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

a medical titanium alloy skeleton fixation clamp comprises a first alloy clamp and a second alloy clamp, wherein an elastic sheet is fixedly arranged at the rear end of the second alloy clamp, the rear side end of the second alloy clamp is provided with a placing groove, the rear side end of the second alloy clamp is provided with a through hole, the through hole is matched with the elastic sheet, the inner position of the first alloy clamp is inserted with a fixed bolt, the inner position of the first alloy clamp is movably inserted with a first rotating shaft, a first gear is fixedly arranged at the outer side end position of the first rotating shaft in a surrounding way, a second rotating shaft is movably inserted and arranged at the inner position of the first alloy clamp, the position of the outer side end of the second rotating shaft is fixedly provided with a rotating disc in a surrounding manner, the inner position of the rotating disc is provided with a clamping groove which is T-shaped, and the position of the outer side end of the second rotating shaft is fixedly provided with a second gear in a surrounding manner.

In above-mentioned medical titanium alloy skeleton fixation clamp, first alloy press from both sides and be provided with stop gear on the inside wall, stop gear include stopper, first spring and spacing tooth, first alloy press from both sides fixed mounting on the inside wall and be provided with the stopper, stopper inboard end position movable mounting be provided with spacing tooth, spacing tooth opposite side activity joint is in the first gear outside, spacing tooth and first alloy press from both sides between position fixed connection be provided with first spring.

In the medical titanium alloy skeleton fixing clamp, a clamp and a mechanism are fixedly arranged at the other side end of the elastic sheet and comprise a cavity, a baffle, a second spring, a movable plate and a clamping block, the cavity is formed in the elastic sheet, the baffle is fixedly arranged on the upper side end and the lower side end of the cavity in a vertical mode, the movable plates are movably clamped on the two sides of the cavity in the cavity, the second spring is fixedly connected between the movable plates, and the clamping block is fixedly connected to one side of the movable plate.

The first alloy clamp and the second alloy clamp are combined into a complete main body after being fixed by the fixing bolt, the main body is attached to one side of a broken bone when in use, the other side of the main body is attached to the outer side of the broken bone on the other side, then the elastic sheet is used for surrounding the outer side of the broken bone, finally the clamping block is pressed and recovered to the inner part of the cavity, meanwhile, the clamping block drives the movable plate to extrude the second spring, the second spring is in a compressed state, then the elastic sheet passes through the through hole and extends to the inside of the clamping groove, the second spring resets to drive the movable plate to reset, so that the clamping block is clamped at the position inside the clamping groove, thereby fixing the position of the elastic sheet, enabling a user to rotate the first rotating shaft through tools such as a screwdriver and the like to enable the first rotating shaft to drive the first gear to rotate, extruding the limiting teeth during rotation, the first spring is extruded simultaneously, and when the first gear rotates reversely, the limiting block blocks the limiting teeth to rotate, so that the first gear is prevented from rotating reversely. Drive second gear revolve when first gear revolve, thereby make the carousel rotate, twine the flexure strip in the carousel outside, thereby fix the flexure strip staple bolt in the broken bone outside, thereby fixed main part, it is fixed to make the position align between the broken bone, make things convenient for the healing work of broken bone, need not trompil on the broken bone during the installation simultaneously, prevent the secondary injury, medical personnel cut off the flexure strip when dismantling, then demolish the main part can, do not stay the installation screw after demolising, make the skeleton need not to carry out subsequent secondary and resume, the skeleton quality of resuming has been improved.

In the medical titanium alloy bone fixing clamp, the elastic sheet is made of titanium alloy and is arc-shaped.

In the medical titanium alloy bone fixing clamp, one side end of the fixing bolt is positioned in the arranging groove, and one side of the sleeve nut is welded and sealed through titanium alloy after the fixing is finished.

In the medical titanium alloy bone fixing clamp, the top end position of the first rotating shaft extends to the outer side position of the first alloy clamp, and a cross groove is formed in the top end position of the first rotating shaft.

In the medical titanium alloy bone fixing clamp, the second gear is meshed with the first gear.

In the medical titanium alloy skeleton fixing clamp, the clamping block movably extends to the outer side of the elastic sheet, and the clamping block is matched with the clamping groove.

In the medical titanium alloy skeleton fixing clamp, the baffle plate divides the cavity into two parts which are symmetrical left and right.

A manufacturing method of a medical titanium alloy bone fixation clamp specifically comprises the following steps:

the first step is as follows: preparing raw materials, namely taking 0.5-1 wt% of Al, 0.8-1.5 wt% of Zn, 0.2-0.5 wt% of Mg, 2-4 wt% of Cu, 1-2 wt% of Ni, 0.5-0.8 wt% of Zr, 0.1-0.3 wt% of Nb, 0.7-1.8 wt% of Si and the balance of Ti raw materials.

The second step is that: mixing, namely adding the raw materials into mixing equipment in proportion, vacuumizing the interior of the mixing equipment, preventing the reaction of partial raw materials and gas in the interior from being consumed during high-temperature mixing to cause proportion change, simultaneously preventing the mixture after the reaction with the gas from influencing alloy components, stirring and mixing through the mixing equipment and preheating, then gradually heating to 1500-2000 ℃, completing material mixing within 10-30 minutes, and preserving heat for later use.

The third step: pouring and forming, namely injecting the melted alloy into the mold, and then cooling and forming the alloy in the mold to form the required shape.

The fourth step: cleaning, cooling the formed titanium alloy product, vibrating and separating mold sand by using a shakeout machine to obtain an alloy product, polishing the titanium alloy product to remove burrs of the product, washing the titanium alloy product by using flowing clear water to remove redundant sand on the outer surface, then placing the titanium alloy product in a drying box, and quickly drying at 80-100 ℃.

The fifth step: and nitriding, namely placing the cleaned titanium alloy product in ammonia gas or nitrogen gas under one atmospheric pressure, raising the treatment temperature to 800-1000 ℃, and treating for 2-3 hours, thereby obviously improving the fatigue resistance of the treated titanium alloy product and improving the fatigue resistance by 20-35 wt%.

And a sixth step: mounting, firstly welding a first gear which is manufactured around the outer side of a first rotating shaft, then movably clamping the first rotating shaft in a first alloy clamp, simultaneously welding a second gear and a rotating disc around the outer side of a second rotating shaft, then movably mounting the second rotating shaft in the first alloy clamp, simultaneously meshing the first gear and the second gear, slotting the inner part of an elastic sheet after the mounting is finished, then mounting a clamp and a mechanism in the elastic sheet, then welding and closing an exposed position to form a cavity at the groove position, then movably mounting a limiting tooth through a pin shaft, then welding and fixing a second spring, laminating the first alloy clamp and the second alloy clamp into a main body after the mounting is finished, fixing the main body by a fixing bolt which penetrates through a matching nut, after the fixing is finished, welding and sealing one end of the fixing nut, and preventing the first alloy clamp and the second alloy clamp from being separated due to the separation of the nut during the use, and the whole equipment is installed.

Compared with the prior art, the invention has the advantages that:

drive second gear revolve during first gear revolve to make the carousel rotate, twine the flexure strip in the carousel outside, thereby fix the flexure strip staple bolt in the broken bone outside, thereby fixed main part makes the position alignment between the broken bone fixed, makes things convenient for the healing work of broken bone, need not trompil on the broken bone during the installation simultaneously, prevents the secondary injury.

Medical personnel cut off the flexure strip when dismantling, then demolish the main part can, do not leave the installation screw after demolising for the skeleton need not to carry out subsequent secondary and resumes, has improved the skeleton quality of resumeing.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the overall structure.

Fig. 2 is a left side sectional view of fig. 1.

Fig. 3 is a top sectional view of fig. 1.

Fig. 4 is a top sectional view of a rotating disk in a medical titanium alloy bone fixation clamp.

Fig. 5 is an enlarged schematic view of a1 structure in fig. 3.

Fig. 6 is an enlarged schematic view of a2 structure in fig. 2.

In the figure: the clamping device comprises a first alloy clamp 1, a fixing bolt 2, a second alloy clamp 3, an elastic sheet 4, a clamping mechanism 5, a first rotating shaft 6, a second rotating shaft 7, a through hole 8, a second gear 9, a rotating disc 10, a first gear 11, a placing groove 12, a clamping groove 13, a baffle 14, a movable plate 15, a second spring 16, a clamping block 17, a cavity 18, a limiting block 19, limiting teeth 20, a first spring 21 and a limiting mechanism 22.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 1-6, the embodiment provides a medical titanium alloy bone fixation clamp, which includes a first alloy clamp 1 and a second alloy clamp 3, wherein a rear end of the second alloy clamp 3 is fixedly provided with an elastic sheet 4, the elastic sheet 4 is made of titanium alloy, the elastic sheet 4 is arc-shaped, a rear end of the second alloy clamp 3 is provided with a placement groove 12, a rear end of the second alloy clamp 3 is provided with a through hole 8, the through hole 8 is engaged with the elastic sheet 4, a fixing bolt 2 is inserted into the first alloy clamp 1, one side of the fixing bolt 2 is positioned inside the placement groove 12, one side of the nut is welded and sealed by titanium alloy after installation, a first rotating shaft 6 is movably inserted into the first alloy clamp 3, and the top end of the first rotating shaft 6 extends to the outer side of the first alloy clamp 3, and the top end position of the first rotating shaft 6 is provided with a cross groove, the outer side end position of the first rotating shaft 6 is fixedly provided with a first gear 11 in a surrounding mode, the inner position of the first alloy clamp 3 is movably inserted with a second rotating shaft 7, the outer side end position of the second rotating shaft 7 is fixedly provided with a rotating disc 10 in a surrounding mode, the inner position of the rotating disc 10 is provided with a clamping groove 13, the clamping groove 13 is T-shaped, the outer side end position of the second rotating shaft 7 is fixedly provided with a second gear 9 in a surrounding mode, and the second gear 9 is meshed with the first gear 11.

First alloy press from both sides and be provided with stop gear 22 on 1 inside wall, stop gear 22 include stopper 19, first spring 21 and spacing tooth 20, first alloy press from both sides fixed mounting on 1 inside wall and be provided with stopper 19, 19 inboard end position movable mounting of stopper be provided with spacing tooth 20, 20 opposite side movable joint of spacing tooth are in the 11 outsides of first gear, spacing tooth 20 and first alloy press from both sides between 1 fixed connection of position be provided with first spring 21.

4 opposite side end position fixed mounting of flexure strip be provided with card and mechanism 5, card and mechanism 5 include cavity 18, baffle 14, second spring 16, fly leaf 15 and fixture block 17, 4 internal positions of flexure strip seted up cavity 18, the equal vertical fixed mounting in both sides about cavity 18 is provided with baffle 14, baffle 14 separates cavity 18 for bilateral symmetry two parts, the equal activity joint in both sides of cavity 18 be provided with fly leaf 15, fly leaf 15 between fixed connection be provided with second spring 16, fly leaf 15 one side fixed connection is provided with fixture block 17, fixture block 17 activity extends to the flexure strip 4 outside to fixture block 17 agrees with draw-in groove 13.

The first alloy clamp 1 and the second alloy clamp 3 are fixed by a fixing bolt 2 and then combined into a complete main body, when in use, the main body is attached to one side of a broken bone, the other side of the main body is attached to the outer side of the broken bone, then an elastic sheet 4 is used for surrounding the outer side of the broken bone, finally a clamping block 17 is pressed and recovered to the inner part of a cavity 18, meanwhile, the clamping block 17 drives a movable plate 15 to extrude a second spring 16, so that the second spring 16 is in a compressed state, then the elastic sheet 4 passes through a through hole 8 and extends to the inner part of a clamping groove 13, the second spring 16 resets to drive the movable plate 15 to reset, so that the clamping block 17 is clamped at the inner part of the clamping groove 13, so as to fix the position of the elastic sheet 4, after completion, a user rotates the first rotating shaft 6 by a tool such as a screwdriver, so that the first rotating shaft 6 drives the first gear 11 to rotate, the limiting teeth 20 are extruded during rotation, the first spring 21 is simultaneously extruded, when the first gear 11 rotates reversely, the stopper 19 blocks the rotation of the stopper teeth 20, thereby preventing the first gear 11 from being reversely rotated. Drive second gear 9 and rotate when first gear 11 rotates, thereby make carousel 10 rotate, twine flexure strip 4 in the carousel 10 outside, thereby fix the flexure strip 4 staple bolt in the broken bone outside, thereby fixed main part, it is fixed to make the position align between the broken bone, make things convenient for the healing work of broken bone, need not trompil on the broken bone during the installation simultaneously, prevent the secondary injury, medical personnel cuts off flexure strip 4 when dismantling, then demolish the main part can, do not stay the installation screw after demolising, make the skeleton need not to carry out subsequent secondary and resume, the skeleton restoration quality has been improved.

Example 2

The embodiment provides a method for manufacturing a medical titanium alloy bone fixation clamp on the basis of embodiment 1, which specifically comprises the following steps:

the first step is as follows: preparing raw materials, taking 0.5-1 wt% of Al, 0.8-1.5 wt% of Zn, 0.2-0.5 wt% of Mg, 2-4 wt% of Cu, 1-2 wt% of Ni, 0.5-0.8 wt% of Zr, 0.1-0.3 wt% of Nb, 0.7-1.8 wt% of Si and the balance of Ti raw materials,

the second step is that: mixing, namely adding the raw materials into mixing equipment in proportion, vacuumizing the interior of the mixing equipment, preventing the reaction of partial raw materials and gas in the interior from being consumed during high-temperature mixing to cause proportion change, simultaneously preventing the mixture after the reaction with the gas from influencing alloy components, stirring and mixing through the mixing equipment and preheating, then gradually heating to 1500-2000 ℃, completing material mixing within 10-30 minutes, and preserving heat for later use.

The third step: pouring and forming, namely injecting the melted alloy into the mold, and then cooling and forming the alloy in the mold to form the required shape.

The fourth step: cleaning, cooling the formed titanium alloy product, vibrating and separating mold sand by using a shakeout machine to obtain an alloy product, polishing the titanium alloy product to remove burrs of the product, washing the titanium alloy product by using flowing clear water to remove redundant sand on the outer surface, then placing the titanium alloy product in a drying box, and quickly drying at 80-100 ℃.

The fifth step: and nitriding, namely placing the cleaned titanium alloy product in ammonia gas or nitrogen gas under one atmospheric pressure, raising the treatment temperature to 800-1000 ℃, and treating for 2-3 hours, thereby obviously improving the fatigue resistance of the treated titanium alloy product (by 20-35 wt%).

And a sixth step: mounting, firstly welding a first gear 11 which is manufactured around the outer side of a first rotating shaft 6, then movably clamping the first rotating shaft 6 in a first alloy clamp 1, simultaneously welding a second gear 9 and a rotating disc 10 around the outer side of a second rotating shaft 7, then movably mounting the second rotating shaft 7 in the first alloy clamp 1, simultaneously meshing the first gear 11 and the second gear 9, grooving the inner part of an elastic sheet 4 after mounting, then mounting a clamp and a mechanism 5 in the elastic sheet 4, welding and closing the exposed position to form a cavity 18, movably mounting a limiting tooth 20 through a pin shaft, then welding and fixing a second spring 16, laminating the first alloy clamp 1 and the second alloy clamp 3 into a main body after mounting, fixing the main body through a fixing bolt 2 which penetrates through a matching nut, after fixing is completed, sealing one end of the fixing nut by welding, and preventing the first alloy clamp 1 from being separated from the second alloy clamp 3 due to separation of the nut during use, and the whole equipment is installed.

The working principle of the invention is as follows: the first alloy clamp 1 and the second alloy clamp 3 are fixed by a fixing bolt 2 and then combined into a complete main body, when in use, the main body is attached to one side of a broken bone, the other side of the main body is attached to the outer side of the broken bone, then an elastic sheet 4 is used for surrounding the outer side of the broken bone, finally a clamping block 17 is pressed and recovered to the inner part of a cavity 18, meanwhile, the clamping block 17 drives a movable plate 15 to extrude a second spring 16, so that the second spring 16 is in a compressed state, then the elastic sheet 4 passes through a through hole 8 and extends to the inner part of a clamping groove 13, the second spring 16 resets to drive the movable plate 15 to reset, so that the clamping block 17 is clamped at the inner part of the clamping groove 13, so as to fix the position of the elastic sheet 4, after completion, a user rotates the first rotating shaft 6 by a tool such as a screwdriver, so that the first rotating shaft 6 drives the first gear 11 to rotate, the limiting teeth 20 are extruded during rotation, the first spring 21 is simultaneously extruded, when the first gear 11 rotates reversely, the stopper 19 blocks the rotation of the stopper teeth 20, thereby preventing the first gear 11 from being reversely rotated. Drive second gear 9 and rotate when first gear 11 rotates, thereby make carousel 10 rotate, twine flexure strip 4 in the carousel 10 outside, thereby fix the flexure strip 4 staple bolt in the broken bone outside, thereby fixed main part, it is fixed to make the position align between the broken bone, make things convenient for the healing work of broken bone, need not trompil on the broken bone during the installation simultaneously, prevent the secondary injury, medical personnel cuts off flexure strip 4 when dismantling, then demolish the main part can, do not stay the installation screw after demolising, make the skeleton need not to carry out subsequent secondary and resume, the skeleton restoration quality has been improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the invention.