CN116421260B - Bone cement cleaner - Google Patents

Abstract

The application discloses a bone cement cleaner, which belongs to the technical field of medical appliances and comprises: a scraper for scraping off the overflowed bone cement; a handle for being held by an operator to move the spatula; the scraper is movably connected with the handle and can be limited; and the control piece is used for controlling the scraper to move relative to the handle, one end of the control piece is fixedly connected with the scraper, and the other end of the control piece is held by an operator, so that the angle of the scraper is adjusted. The scraper can rotate relative to the handle, and the scraper can rotate by pulling the guide wire I and the guide wire II, so that the angle of the scraper is adjusted, the scraper can conveniently enter a part needing to scrape bone cement, particularly a part which is not easy to enter by the traditional straight scraper, and the bone cement can be entered and scraped by adjusting the angle of the scraper.

Description

A bone cement cleaner

Technical field

The invention belongs to the technical field of medical devices, and specifically relates to a bone cement cleaner.

Background technique

Bone cement is the common name for bone cement. Bone cement is a medical material used in orthopedic surgeries. Due to some of its physical properties and its appearance and properties after solidification, it resembles white cement used in construction and decoration. Popular name.

Bone cement plays a very similar role to cement, connecting and filling. Bone cement can be used to fill the medullary cavities caused by some patients with bone tumors or fractures. The characteristic of bone cement is that it is fixed very quickly, and once solidified, the joint can be weight-bearing early and perform functional exercises. Of course, bone cement also has some side effects. For example, after filling the fracture site with bone cement, part of the bone cement will overflow from the filling site due to the compression of the bone. Once the overflowing bone cement solidifies, it will form a structure similar to a bone spur. , which is very detrimental to the patient’s health. Therefore, it is very important to remove the spilled bone cement in time before the bone cement solidifies.

The bone cement removal instruments currently used clinically are not flexible enough to flexibly adapt to the curvature of the curettage site, especially the hidden areas that are inaccessible. Therefore, they cannot completely and effectively remove the spilled bone cement, which will lead to the formation of bone spurs.

Contents of the invention

The technical problem to be solved by the present invention is that the bone cement removal instruments currently used clinically are not flexible enough, the hidden parts are inaccessible, and the spilled bone cement cannot be completely and effectively removed. In order to solve the above technical problems, the present invention proposes a device that can effectively remove all the bone cement. The instrument can adjust the angle of the blade according to the condition of the site to be cured during the curettage process. The curettage range is larger and more parts can be touched to prevent the fracture site from being damaged due to incomplete bone cement curettage. A situation in which cement overflows and causes bone spurs to form.

The invention is a bone cement cleaner, which includes:

Scraper, used to scrape off spilled bone cement;

A handle, used to be held by the operator to move the scraper; the scraper is movably connected to the handle and can be limited;

The control member is used to control the movement of the scraper relative to the handle. One end of the control member is fixedly connected to the scraper, and the other end is held by the operator so that the angle of the scraper is adjusted.

In some embodiments of the present application, one end of the scraper that is movably connected to the handle is defined as the first end, the other end of the scraper is the second end, and the second end is the free end; the direction from the second end of the scraper points to the first end. is the first direction, and the direction from the first end to the second end of the scraper is the second direction.

In some embodiments of the present application, the scraper is hinged to the handle, the control member is fixedly connected to the scraper, and the control member allows the scraper to move relative to the handle. During use, if the bone cement in hidden parts is not easy to scrape off, you can adjust the angle of the scraper. For example, first adjust the scraper to a straight direction to enter the pre-scraping part. After entering, the straight scraper cannot scrape off the bone cement. Then adjust the scraper to the appropriate angle to scrape off the bone cement.

Preferably, the scraper and the handle are rotationally connected through a connecting shaft, and the scraper makes a circular motion around the axis of the connecting shaft, so that the second end of the scraper is on the same horizontal line as the handle, or forms an angle α with the handle. When necessary, adjust the scraper to form an angle with the handle to avoid blocking the operator's sight during operation. By adjusting the angle of the scraper, you can enter parts that are difficult to access with traditional bone cement removers.

In some embodiments of the present application, the control member includes guide wire one and guide wire two, and guide wire one and guide wire two are arranged side by side from the first direction to the second direction, so that guide wire one and guide wire two are directed toward each other respectively. Different directions drive the movement of the scraper;

Guide wire one is fixedly connected to the scraper. The operator pulls the guide wire one to make the scraper rotate clockwise, and the free end of the scraper moves toward the first direction;

The second guide wire is fixedly connected to the scraper. The operator pulls the second guide wire to cause the scraper to rotate counterclockwise, and the free end of the scraper moves toward the second direction. The operator can pull the guide wire one to make the scraper reach a position flush with the horizontal line of the handle. At this time, the scraper is a straight scraper. If the operator continues to pull the guide wire one, the angle can be formed between the scraper and the handle. Pull the guide wire two. Make the scraper rotate in the second direction. Continue to pull the guide wire 2 to make the scraper parallel to the horizontal line of the handle again. Continue to pull the guide wire 2 to make the scraper form an angle with the horizontal line of the handle or with the handle to determine the position of the scraper. Finally, bone cement can be effectively scraped off at this time.

In other embodiments of the present application, a pulling stabilizing member is provided to maintain the stability of the pulling force during the pulling of guide wire one and guide wire two. Guide wire one is fixedly connected to the pulling stabilizing member, and guide wire two is fixedly connected to the pulling stabilizing member. It is fixedly connected with the pulling stabilizing part, and the pulling stabilizing part is movably connected with the handle. When in use, the pulling stabilizing member drives the first and second guide wires to move, thereby pulling the scraper.

Preferably, the pulling stabilizing part is hingedly connected to the handle, and the pulling stabilizing part moves relative to the handle. It drives the scraper to move so that the angle of the scraper is adjusted.

Preferably, the pulling stabilizing member is a plate-shaped stabilizing plate. The stabilizing plate and the handle are rotationally connected through a fixed shaft. The stabilizing plate makes a circular motion with the axis of the fixed shaft as the center of the circle. The guide wire 1 is fixedly connected to the stabilizing plate. , the second guide wire is fixedly connected to the stabilizing plate, and the stable plate drives the first and second guide wires to move, thereby adjusting the position of the scraper. During use, the operator only needs to turn the stabilizing plate to adjust the angle of the scraper. This adjustment method can ensure the stability of the pulling force and avoid damage to the tissue around the scraper.

Preferably, the end of the handle close to the operator is the operating end, and a fixed plate 1 and a fixed plate 2 are provided at the operating end. The fixed plate 1 is integrally connected to the handle, the fixed plate 2 is integrally connected to the handle, and the stabilizing plate is located between the fixed plate 1 and the handle. Between the two fixed plates; holes with concentric centers are provided on the first fixed plate, the second fixed plate and the stable plate, and the fixed shaft passes through the holes. In this embodiment, the first fixed plate, the second fixed plate and the stable plate are penetrated by the fixed shaft in sequence, thereby realizing the rotational connection between the stable plate and the handle.

In other embodiments of the present application, the pulling stabilizing member is a plate-shaped stabilizing plate, the stabilizing plate and the handle are movably connected through a rotating shaft, the first guide wire is fixedly connected to the rotating shaft, and the second guide wire is connected to the rotating shaft. The shaft is fixedly connected, the stabilizing plate is fixedly connected to the rotating shaft, and the stabilizing plate is located outside the handle. In the use state, the stabilizing plate drives the rotating shaft to rotate, and the rotating shaft drives the scraper to rotate. In this embodiment, the stabilizing plate is located on the outside of the handle and will not be blocked during rotation. Therefore, it can rotate 360° to achieve the maximum range of adjustment of the angle of the scraper.

In some embodiments of the present application, the handle includes a limiting member for limiting the positions of the first and second guide wires, and the limiting member is detachably and fixedly connected to the handle. By defining the positions of guide wire one and guide wire two, the position of the scraper is fixed.

Preferably, the limit member includes a sleeve, a limit screw and a threaded tube, the limit screw is threadedly connected to the threaded tube, the threaded tube is integrally connected to the sleeve, and the sleeve is sleeved on the outside of the handle; the handle There is an opening that allows the limit screw to extend in. The limit screw is in contact with the first guide wire, and the limit screw is in contact with the second guide wire, so that the positions of the first and second guide wires are determined.

Preferably, the limit screw is located in a direction perpendicular to the first direction, so that the guide wire 1 and the guide wire 2 will not drive the scraper to move after they come into contact with the limit screw. The purpose of this setting is: the limit screw contacts the guide wires one and two, which will cause the guide wires one and two to deform, and the deformation will pull the scraper. If the guide wires one and two are in Deformation occurs in the first direction or the second direction, which will drive the scraper to rotate. At this time, the angle at which the scraper is determined deviates from the angle before it was determined; and if the deformation direction of the guide wire one and the second direction is not in the first direction or the second direction, the scraper will be rotated. In the two directions, even if the guide wires one and two are deformed and exert a pulling force on the scraper, the scraper will not move because the scraper cannot move in other directions.

Beneficial effects of the present invention:

(1) The scraper can rotate relative to the handle. By pulling the guide wire 1 and 2, the scraper can rotate, thereby adjusting the angle of the scraper so that the scraper can enter the area where bone cement needs to be scraped, especially when the traditional straight scraper cannot In easily accessible parts, the bone cement can be entered and scraped off by adjusting the angle of the scraper of the present invention.

(2) The stabilizing plate can ensure the stability of the pulling force during use and prevent the unstable pulling force from causing the angle of the scraper to be suddenly adjusted and damage surrounding tissues and mucous membranes.

(3) The limiter can limit the positions of guide wires one and two, thereby limiting the movement of guide wires one and two, so that the angle of the scraper is fixed, and then the bone cement scraping operation can be performed. The operator needs to continuously pull the guide wire one or two, which is labor-saving and efficient.

Usage method of the present invention:

1. According to the need to scrape off the bone cement, adjust the entry angle of the scraper. The adjustment method is: hold the stabilizing plate, turn the stabilizing plate clockwise or counterclockwise, and drive the scraper to rotate so that the scraper reaches the appropriate angle to facilitate the entry of pre-scraping. Cement removal site;

2. Turn the limit screw so that the limit screw contacts guide wire one and guide wire two to limit the angle of the scraper;

3. During the process of scraping off bone cement, the operator can hold the stabilizing plate and continuously pull the scraper, or limit the position of the scraper through the limit screw. The operator can use any method that is convenient for operation.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure and do not limit the present disclosure. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall front structure of a sickle-shaped scraper and guide wires 1 and 2 equipped with pulling rings;

Figure 2 is a schematic diagram of the overall structure of Figure 1;

Figure 3 is an enlarged structural diagram of the hinged part of the scraper and the handle;

Figure 4 is an exploded diagram of the hinged part of the handle and scraper;

Figure 5 is a schematic cross-section of the hinged part of the handle and scraper;

Figure 6 is a schematic diagram of the overall front structure with a stabilizing plate and the stabilizing plate having notch one and notch two;

Figure 7 is a schematic diagram of the overall structure of Figure 6;

Figure 8 is an enlarged schematic diagram of the hinged part of the stabilizing plate and the handle;

Figure 9 is a schematic diagram of the overall front structure provided with a rotating shaft and a stabilizing plate;

Figure 10 is a schematic diagram of the overall structure of Figure 9;

Figure 11 is a schematic structural diagram of the stabilizing plate and the handle being hinged and the limiting member being sleeved on the outside of the handle;

Figure 12 is a schematic cross-section of the limiter and handle;

In the figure, 1. Scraper; 11. Through hole one; 2. Handle; 21. Connecting plate one; 22. Connecting plate two; 23. Connecting shaft; 24. Through hole two; 25. Hole one; 26. Hole two; 27. Fixed plate one; 28. Fixed plate two; 31. Guide wire one; 32. Guide wire two; 33. Pulling ring; 34. Stabilizing plate; 341. Marking structure; 351. Notch one; 352. Notch two; 41. Rotating shaft; 42. Rotating rod; 51. Sleeve; 52. Limiting screw; 53. Threaded pipe.

Detailed ways

The following is a clear and complete description of the technical solutions in the embodiments of the present invention through specific specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Those skilled in the art can refer to this Other advantages and effects of the present invention can be easily understood from the content disclosed in the specification. The present invention can also be implemented or applied through other different specific implementations. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, those of ordinary skill in the art can All other embodiments obtained without creative efforts belong to the scope of protection of the present invention.

The embodiments and examples of the present disclosure will be described in detail below with reference to the accompanying drawings.

Figures 1-2 are schematic diagrams of the overall structure of the present invention. This specific embodiment provides a bone cement cleaner, including: a scraper 1, used to scrape off spilled bone cement; a handle 2, used to be operated The scraper 1 is held by the user to move the scraper 1; the scraper 1 is movably connected to the handle 2 and can be limited; the control part is used to control the movement of the scraper 1 relative to the handle 2. One end of the control part is fixedly connected to the scraper 1, and the other end is The operator holds it so that the angle of the scraper 1 is adjusted.

In this embodiment, the angle of the scraper 1 is adjusted to be able to enter the pre-scraped bone cement site, and the scraping operation is performed at the most suitable angle, so that the bone cement can be removed efficiently.

As shown in Figure 1, in some embodiments of the present application, the scraper 1 has a sickle-shaped plate structure. Preferably, the free end of the scraper 1 is blunt to avoid damaging surrounding tissue. During use, the bone cement overflowing from the fracture filling site is scraped off with the scraper 1. The sickle-shaped scraper 1 can scrape off more bone cement at one time, has a collecting effect on the bone cement, and can scrape off the bone cement efficiently.

In some embodiments of the present application, one end of the scraper 1 movably connected to the handle 2 is defined as the first end, the other end of the scraper 1 is the second end, and the second end is the free end; pointing from the second end of the scraper 1 to the The direction of one end is the first direction, and the direction from the first end to the second end of the scraper 1 is the second direction. The above definitions are only for convenience of description and will not have any limiting effect.

As shown in Figures 1 and 2, in some embodiments of the present application, the handle 2 has a cylindrical structure, which is easy for the operator to hold when in use, and has a smooth surface, which will not damage surrounding tissues and mucous membranes.

In some embodiments of the present application, the scraper 1 is hinged to the handle 2, and the control member is fixedly connected to the scraper 1. The control member allows the scraper 1 to move relative to the handle 2. During use, if the bone cement in hidden parts is not easy to scrape off, you can adjust the angle of scraper 1. For example, adjust scraper 1 to be straight first to enter the pre-scraping site. After entering, the straight scraper 1 cannot scrape off. Bone cement, then adjust the scraper 1 to a suitable angle to scrape off the bone cement.

As shown in Figures 3-5, in some embodiments of the present application, the scraper 1 and the handle 2 are rotationally connected through a connecting shaft 23, and the scraper 1 makes a circular motion around the axis of the connecting shaft 23, so that the second end of the scraper 1 It is on the same horizontal line as the handle 2, or forms an angle α with the handle 2. When necessary, the scraper 1 is adjusted to form an angle with the handle 2, so as to avoid blocking the operator's sight during operation, and by adjusting the angle of the scraper 1, it is possible to enter parts that are difficult for traditional bone cement removers to enter.

Specifically, the surface of the scraper 1 that is in direct contact with the bone cement is the scraping surface. The scraping surface has an edge. The center line of the handle 2 and the edge of the scraping surface form an angle α, 0°<α<300°, which can achieve a wide range of Scrape off the bone cement.

Specifically, the width of the scraper 1 is 1-5 mm, preferably, the width of the scraper 1 is 2 mm; preferably, the width of the scraper 1 is 3 mm.

The handle 2 has a connecting end, which is integrally formed with the handle 2. The connecting end includes a connecting plate, and the connecting plate and the scraper 1 are rotationally connected through a connecting shaft 23. The connecting shaft 23 penetrates the connecting plate and the scraper 1 in sequence.

Alternatively, the handle 2 has a connecting end, which is integrally formed with the handle 2. The connecting end includes a connecting plate 21 and a connecting plate 22, the scraper 1 is located between the connecting plate 1 21 and the connecting plate 2 22, and the connecting shaft 23 is in turn Through connecting plate one 21, scraper 1, and connecting plate two 22, the scraper 1 and the handle 2 are rotationally connected. During use, under the action of external force, the scraper 1 rotates around the axis of the connecting shaft 23 to adjust the angle of the scraper 1 .

As shown in Figure 4, the scraper 1 is provided with a through hole 11 that allows the connecting shaft 23 to pass through. The connecting plate 1 21 and the connecting plate 2 22 are respectively provided with a through hole 24 that allows the connecting shaft 23 to pass through. The through hole 1 11 is concentric with the through hole 24.

As shown in Figures 4-5, in some embodiments of the present application, the specific settings of the control parts are:

The control part includes a first guide wire 31 and a second guide wire 32. The first guide wire 31 and the second guide wire 32 are arranged side by side from the first direction to the second direction, so that the first guide wire 31 and the second guide wire 32 drive the scraper in different directions respectively. 1 movement;

The guide wire 31 is fixedly connected to the scraper 1. The operator pulls the guide wire 31 to make the scraper 1 rotate clockwise, and the free end of the scraper 1 moves toward the first direction;

The second guide wire 32 is fixedly connected to the scraper 1. The operator pulls the second guide wire 32 to make the scraper 1 rotate counterclockwise, and the free end of the scraper 1 moves toward the second direction. By pulling the guide wire 31, the operator can make the scraper 1 reach a position flush with the horizontal line of the handle 2. At this time, the scraper 1 is in a straight direction. If the operator continues to pull the guide wire 31, a clamp will be formed between the scraper 1 and the handle 2. angle, pull the guide wire 2 32 to make the scraper 1 rotate in the second direction. Continue to pull the guide wire 32 to make the scraper 1 parallel to the horizontal line of the handle 2 again. Continue to pull the guide wire 32 to make the scraper 1 and the handle 2 parallel. The horizontal line, or the angle formed with the handle 2, determines the position of the scraper 1, and the bone cement can be effectively scraped off at this time.

The handle 2 has a hole 25 that allows the guide wire 31 to pass through, and a hole 26 that allows the guide wire 2 32 to pass through. The hole 25 and the hole 2 26 are arranged side by side from the first direction to the second direction; the guide wire 1 31 extends from the first hole 25 for the operator to grasp, and the second guide wire 32 extends from the second hole 26 for the operator to grasp. During use, the operator pulls the first guide wire 31 and the second guide wire 32 respectively to adjust the position of the scraper 1 in different directions.

A pulling ring 33 is provided on the guide wire one 31, and the pulling ring 33 is integrally formed with the guide wire one 31; a pulling ring 33 two is provided on the guide wire two 32, and the pulling ring 33 is integrated with the guide wire two 32. forming. During use, the operator grasps the pulling rings 33 one and 33 two to apply force.

Alternatively, in other embodiments of the present application, a pulling stabilizing member is provided to maintain the stability of the pulling force during pulling the guide wire one 31 and the guide wire two 32. The guide wire one 31 and the pulling stabilizer are The guide wire 32 is fixedly connected to the pulling stabilizing piece, and the pulling stabilizing piece is movably connected to the handle 2. During use, the pulling stabilizing member drives the first guide wire 31 and the second guide wire 32 to move, thereby pulling the scraper 1 .

The pulling stabilizing part is hingedly connected with the handle 2, and the pulling stabilizing part moves relative to the handle 2. The scraper 1 is driven to move, so that the angle of the scraper 1 is adjusted.

As shown in Figures 6 to 8, the pulling stabilizing member is a plate-shaped stabilizing plate 34. The stabilizing plate 34 and the handle 2 are rotationally connected through a fixed shaft. The stabilizing plate 34 makes a circular motion with the axis of the fixed shaft as the center of the circle. The guide wire One 31 is fixedly connected to the stabilizing plate 34, and the second guide wire 32 is fixedly connected to the stabilizing plate 34. The stabilizing plate 34 drives the first guide wire 31 and the second guide wire 32 to move, so that the position of the scraper 1 is adjusted. During use, the operator only needs to rotate the stabilizing plate 34 to adjust the angle of the scraper 1. This adjustment method can ensure the stability of the pulling force and avoid damaging the tissue around the scraper 1.

The end of the handle 2 close to the operator is the operating end. A fixed plate 27 and a fixed plate 28 are provided at the operating end. The fixed plate 27 is integrally connected with the handle 2, the fixed plate 28 is integrally connected with the handle 2, and the stabilizing plate 34 is located at the fixed position. Between plate one 27 and fixed plate two 28; concentric holes are provided on fixed plate one 27, fixed plate two 28 and stable plate 34, and the fixed shaft passes through the holes. In this embodiment, the first fixed plate 27, the second fixed plate 28, and the stable plate 34 are penetrated by the fixed shaft in sequence, thereby realizing the rotational connection between the stable plate 34 and the handle 2.

In some embodiments of the present application, the stabilizing plate 34 has a first notch 351 and a second notch 352 that fit the handle 2 . The first notch 351 and the second notch 352 are symmetrical to each other, so that the stable plate 34 can be close to the outer surface of the handle 2 . In this embodiment, notch one 351 and notch two 352 are provided on the stabilizing plate 34. When in use, notch one 351 or notch two 352 can be infinitely close to the outer surface of the handle 2, thereby enabling the stabilizing plate 34 to rotate at a larger angle. This allows the scraper 1 to have a larger adjustment range.

The first gap 351 and the second gap 352 are both arc-shaped gaps. The first notch 351 and the second notch 352 in this arrangement are relatively consistent with the outer surface of the handle 2, and can achieve maximum fit.

As shown in Figures 9-11, alternatively, in other embodiments of the present application, the stabilizing plate 34 and the handle 2 are movably connected through the rotating shaft 41, the first guide wire 31 is fixedly connected to the rotating shaft 41, and the second guide wire 32 The stabilizing plate 34 is fixedly connected to the rotating shaft 41 and is located outside the handle 2. In use, the stabilizing plate 34 drives the rotating shaft 41 to rotate, and the rotating shaft 41 drives the scraper 1 to rotate. In this embodiment, the stabilizing plate 34 is located outside the handle 2 and will not be blocked during the rotation process, so it can rotate 360° to achieve the maximum range of adjustment of the angle of the scraper 1 .

The rotating shaft 41 is located between the fixed plate one 27 and the fixed plate two 28. The rotating shaft 41 has a rotating rod 42, and the rotating rod 42 is integrally connected with the rotating shaft 41; the fixed plate one 27 and the fixed plate two 28 are provided with a rotation allowing rod 42 The rotating rod 42 can rotate in the protruding through hole; the stabilizing plate 34 is fixedly connected to the end of the rotating rod 42 extending out of the through hole.

A marking structure 341 is provided at one end of the stabilizing plate 34 facing the first direction to indicate the direction of rotation; the operator places his hand on the marking structure 341 and rotates the stabilizing plate 34 clockwise, and the guide wire 31 is pulled, causing the scraper to 1 rotates clockwise; when the stabilizing plate 34 rotates counterclockwise, the guide wire 2 32 is pulled, causing the scraper 1 to rotate counterclockwise.

As shown in Figure 12, in some embodiments of the present application, the handle 2 includes a limiting member for limiting the positions of the first guide wire 31 and the second guide wire 32. The limiting member is detachably and fixedly connected to the handle 2. By defining the positions of the first guide wire 31 and the second guide wire 32, the position of the scraper 1 is fixed.

The limiter includes a sleeve 51, a limit screw 52 and a threaded tube 53. The limit screw 52 is threadedly connected to the threaded tube 53, the threaded tube 53 is integrally connected to the sleeve 51, and the sleeve 51 is sleeved on the outside of the handle 2; the handle 2 is provided with an opening that allows the limit screw 52 to extend in. The limit screw 52 is in contact with the first guide wire 31, and the limit screw 52 is in contact with the second guide wire 32, so that the positions of the first guide wire 31 and the second guide wire 32 are It is determined.

The limit screw 52 is located in a direction perpendicular to the first direction, so that the first guide wire 31 and the second guide wire 32 will not drive the scraper 1 to move after they contact the limit screw 52 . The purpose of this setting is: the limit screw 52 contacts the first guide wire 31 and the second guide wire 32, which will deform the first guide wire 31 and the second guide wire 32. The deformation will pull the scraper 1. If the guide wire 1. 31. The guide wire 2 32 deforms in the first direction or the second direction, which will drive the scraper 1 to rotate. At this time, the angle at which the scraper 1 is determined deviates from the angle before it was determined; and if the guide wire 1 31. The deformation direction of wire two 32 is not in the first direction or the second direction. Even if the guide wires one 31 and two guide wires 32 deform, they will exert pulling force on the scraper 1. Since the scraper 1 cannot move in other directions, it will not move in other directions. The scraper 1 is driven to move so that the angle of the scraper 1 is accurately determined.

The above embodiments are described only for the purpose of understanding the present invention. It should be noted that for those of ordinary skill in the art, several improvements can be made to the present invention without departing from the principle of the present invention, and these improvements will also fall within the protection scope of the claims of the present invention.

Claims (7)

1. A bone cement cleaner, comprising:

a scraper for scraping off the overflowed bone cement;

a handle for being held by an operator to move the spatula; the scraper is movably connected with the handle and can be limited;

the control piece is used for controlling the scraper to move relative to the handle, one end of the control piece is fixedly connected with the scraper, and the other end of the control piece is held by an operator, so that the angle of the scraper is adjusted;

defining one end of the scraper movably connected with the handle as a first end, the other end of the scraper as a second end, and the second end is a free end; the direction from the second end of the scraper to the first end is a first direction, and the direction from the first end of the scraper to the second end is a second direction;

the control piece comprises a first guide wire and a second guide wire, and the first guide wire and the second guide wire are arranged side by side from a first direction to a second direction, so that the first guide wire and the second guide wire respectively drive the scraper to move in different directions;

the first guide wire is fixedly connected with the scraper, and an operator pulls the first guide wire to enable the scraper to rotate clockwise, and the free end of the scraper moves towards the first direction;

the second guide wire is fixedly connected with the scraper, and an operator pulls the second guide wire to enable the scraper to rotate anticlockwise, and the free end of the scraper moves towards the second direction;

the device comprises a first traction stabilizer, a second traction stabilizer, a handle and a guide wire, wherein the first traction stabilizer is used for keeping the traction force of the first traction guide wire and the second traction guide wire stable in the traction process; the traction stabilizer is a plate-shaped stabilizer plate.

2. The bone cement cleaner of claim 1, wherein the spatula is hinged to the handle, and the control member is fixedly connected to the spatula, such that the spatula is moved relative to the handle by the control member.

3. The bone cement cleaner according to claim 2, wherein the spatula is rotatably coupled to the handle by a connecting shaft, the spatula being movable circumferentially about the axis of the connecting shaft such that the second end of the spatula is at an angle α to the handle or on the same horizontal line as the handle.

4. A bone cement cleaner according to any one of claims 1-3, wherein a stabilizing plate is rotatably connected to the handle via a fixed shaft, the stabilizing plate moves in a circular motion around the axis of the fixed shaft, the first guide wire is fixedly connected to the stabilizing plate, the second guide wire is fixedly connected to the stabilizing plate, and the stabilizing plate drives the first guide wire and the second guide wire to move, so that the position of the scraper is adjusted.

5. A bone cement cleaner according to any one of claims 1-3, wherein the stabilizing plate is movably connected to the handle via a rotation shaft, the first guide wire is fixedly connected to the rotation shaft, the second guide wire is fixedly connected to the rotation shaft, the stabilizing plate is fixedly connected to the rotation shaft, and the stabilizing plate is located outside the handle, and in use, the stabilizing plate drives the rotation shaft to rotate, and the rotation shaft drives the scraper to rotate.

6. The bone cement cleaner according to any one of claims 1-3, wherein the handle comprises a stop member for limiting the position of the first and second guide wires, the stop member being detachably fixedly connected to the handle.

7. The bone cement cleaner according to claim 6, wherein the limiting member comprises a sleeve, a limiting screw and a threaded tube, the limiting screw is in threaded connection with the threaded tube, the threaded tube is integrally connected with the sleeve, and the sleeve is sleeved on the outer side of the handle; the handle is provided with an opening allowing the limit screw to extend in, the limit screw is abutted with the first guide wire, and the limit screw is abutted with the second guide wire, so that the positions of the first guide wire and the second guide wire are determined.