Nail taking device for orthopedics department

Abstract

The invention relates to the technical field of orthopedic instruments, and discloses an orthopedic nail taking device which comprises a bottom plate, a first supporting plate, a first motor, a first rotating shaft, a first rotating plate, a second rotating plate, a first electric push rod, a screwing piece, a clamping piece and a driving piece. In the use process, the driving piece is controlled to work, the first supporting plate can be driven to do linear motion and rotary motion, and finally the tool bit and the two clamping arms are driven to move to the nail taking position. And then the first electric push rod is controlled to work, so that the tool bit and the two clamping arms can rotate around the first rotating plate. The first motor is controlled to work, so that the tool bit and the two clamping arms can rotate around the first rotating shaft. Therefore, the directions of the tool bit and the two clamping arms are further adjusted, and the tool bit and the two clamping arms are right opposite to the steel nail. And then the driving piece is controlled again to work, so that the tool bit and the two clamping arms abut against the steel nail and reset, and the nail taking operation is completed. In the nail taking process, the tool bit can be used for screwing a steel nail in the form of a screw, and the two clamping arms can also be used for clamping a steel nail in the form of a column rod.

Description

Technical Field

[0001] The present application relates to the technical field of orthopedic instruments, and in particular to an orthopedic nail removal device. Background Art

[0002] Related technology (Announcement No.: CN118058820B) discloses a nail remover specifically for orthopedics, comprising a fixing plate and nail retrieval forceps. A mounting bracket is slidably mounted above the fixing plate, and an arcuate groove is formed on the surface of the mounting bracket. The nail retrieval forceps slide into the arcuate groove and comprise a clamp barrel slidably connected to the mounting bracket and a clamp body slidably connected within the clamp barrel. A clamp block is mounted at the end of the clamp body, and a drive unit is mounted on the surface of the clamp body. The drive unit is used to drive the clamp block to clamp the steel nail.

[0003] In the process of implementing the technical solution of the present disclosure, it was found that the above technical solution has at least the following problems:

[0004] This orthopedic nail remover uses a drive unit to clamp the nail with two clamping blocks. The clamp body is then driven to slide relative to the clamp barrel to remove the nail. However, for screw-shaped nails, direct extraction can easily cause secondary injuries to the patient due to the threaded surface of the screw.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0006] In order to provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. The summary is not intended to be a general review, nor to identify key / important components or to delineate the scope of protection of these technical solutions, but rather to serve as a preface to the detailed description that follows.

[0007] The technical solution disclosed in the present invention provides an orthopedic nail removal device to solve the problems raised in the above background technology.

[0008] In some technical solutions, the orthopedic nail removal device includes: a base plate; a first support plate, located above the base plate; a first motor, installed on the first support plate; a first rotating shaft, connected to the rotating end of the first motor; a first rotating plate, installed on the first rotating shaft; a second rotating plate, rotatably installed on the first rotating plate; a first electric push rod, rotatably installed between the second rotating plate and the first rotating plate; a screwing member, installed on the second rotating plate, the screwing member includes a rotatable cutter head; a clamping member, installed on the second rotating plate, the clamping member includes two clamping arms that can approach or move away from each other, the clamping ends of the two clamping arms are each provided with a notch, and the cutter head is located between the two notches; a driving member, installed between the base plate and the first support plate, and configured to drive the first support plate to perform linear motion and rotational motion.

[0009] Optionally, the screwing member includes: a C-shaped plate, mounted on the second rotating plate; a second motor, mounted on one of the two opposite side walls of the C-shaped plate; a second rotating shaft, rotatably mounted on the other of the two opposite side walls of the C-shaped plate, one end of the second rotating shaft is connected to the rotating end of the second motor, and the other end of the second rotating shaft is connected to the cutter head.

[0010] Optionally, the clamping member includes: a first support rod, mounted on the second rotating plate; a second support plate, mounted on the first support rod; a micro-slide, mounted on the second support plate; a first movable plate, mounted on the movable end of the micro-slide; a rotating arm, rotatably connected to the two clamping arms, both of the two rotating arms include meshing teeth, the meshing teeth on the two rotating arms are engaged with each other, and one of the two rotating arms is rotatably mounted on the first movable plate; a third motor, mounted on the first movable plate, and the other of the two rotating arms is connected to the rotating end of the third motor; a connecting rod, rotatably mounted between the first movable plate and the two clamping arms.

[0011] Optionally, the driving member includes: a linear slide mounted on the top surface of the base plate; a second movable plate mounted on the movable end of the linear slide; an arched track mounted on the top surface of the second movable plate and surrounding the first support plate, the arched track including a connected arched flat plate and an arched arc plate, the arched flat plate being located on the inner side of the arched arc plate; an L-shaped plate adjacent to the arched track; a first cam bearing mounted on the L-shaped plate and clamping the arched flat plate; a second cam bearing mounted on the L-shaped plate and clamping the arched arc plate; an arched support plate mounted on The arched track is located on the top surface of the second movable plate and is located on the inner side of the arched support plate; the arched rack is installed on the outer side of the arched support plate; the fourth motor is installed on the L-shaped plate and is located on the outer side of the arched support plate; the gear is installed on the rotating end of the fourth motor and is engaged with the arched rack; the second electric push rod is installed on the L-shaped plate, and the moving end of the second electric push rod points to the inner side of the arched track; the third movable plate is installed on the moving end of the second electric push rod; the second support rod is installed between the third movable plate and the first support plate.

[0012] Optionally, the arched rack includes: a semi-annular rack installed on the outer side of the arched support plate; and a straight rack installed on the outer side of the arched support plate and respectively connected to both ends of the semi-annular rack.

[0013] Optionally, it also includes: a pad, installed on the top surface of the base plate; a linear guide, installed on the top surface of the pad along the movement direction of the moving end of the linear slide; a slider, slidably installed on the linear guide; a fourth movable plate, installed on the slider, and connected to the arch track and the arch support plate.

[0014] Optionally, it also includes: an optical axis, which is slidably arranged on the L-shaped plate and is connected to the third movable plate; a linear bearing, which is sleeved on the optical axis and installed on the L-shaped plate.

[0015] Optionally, it also includes: a third support rod, installed on the first support plate; a third support plate, installed on the third support rod, and the first rotating shaft is passed through the third support plate; a first bearing seat, installed on the third support plate and sleeved on the first rotating shaft; a first bearing, installed between the first bearing seat and the first rotating shaft.

[0016] Optionally, it further includes: a second bearing seat, installed on the Q-shaped plate and sleeved on the second rotating shaft; and a second bearing, installed between the second bearing seat and the second rotating shaft.

[0017] Optionally, it also includes: a first support, mounted on the first rotating plate; an adapter joint, rotatably mounted on the first support and connected to the tail end of the first electric push rod; a second support, mounted on the second rotating plate; a joint bearing, rotatably mounted on the second support and connected to the moving end of the second electric push rod.

[0018] The orthopedic nail removal device provided by the technical solution disclosed herein can achieve the following technical effects:

[0019] The technical solution disclosed herein provides an orthopedic nail removal device comprising a base plate, a first support plate, a first motor, a first rotating shaft, a first rotating plate, a second rotating plate, a first electric push rod, a screwing member, a clamping member, and a driving member. The base plate supports the entire device. The first support plate is located above the base plate and supports and mounts the first motor. The first motor is mounted on the first support plate and provides driving force to achieve the rotational motion function. The first rotating shaft is connected to the rotating end of the first motor and rotates under the drive of the first motor. The first rotating plate is mounted on the first rotating shaft and rotates under the drive of the first rotating shaft, and supports and mounts a rotatable second rotating plate. The second rotating plate is rotatably mounted on the first rotating plate, with the plane of the second rotating plate forming an angle with the plane of the first rotating plate. The first electric push rod is rotatably mounted between the second rotating plate and the first rotating plate and provides driving force to change the angle. The screwing member is mounted on the second rotating plate and includes a rotatable cutter head, including straight-shaped and cross-shaped cutter heads, for tightening steel nails in the form of screws. The clamping element is mounted on the second rotating plate and consists of two arms that can move toward or away from each other. Each arm has a notch at its clamping end for gripping a steel nail in the form of a column. The cutting head is positioned between the two notches, ensuring they do not interfere with each other during movement. The driving element is mounted between the base plate and the first support plate, providing the driving force required to propel the first support plate in both linear and rotational motion.

[0020] During use, controlling the driving member to work can drive the first support plate to perform linear and rotational motion, and finally drive the cutter head and the two clamping arms to move to the nail removal location. Then controlling the first electric push rod to work can drive the second rotating plate to rotate, and finally drive the cutter head and the two clamping arms to rotate around the first rotating plate. Controlling the first motor to work can drive the first rotating shaft to rotate, and finally drive the cutter head and the two clamping arms to rotate around the first rotating shaft. Thereby, the orientation of the cutter head and the two clamping arms is further adjusted so that the cutter head and the two clamping arms are facing the steel nail. Then controlling the driving member to work again can make the cutter head and the two clamping arms collide with the steel nail and reset, completing the nail removal operation. During the nail removal process, the cutter head can be used to screw the steel nail in the form of a screw, and the two clamping arms can be used to clamp the steel nail in the form of a column, so that different forms of steel nails can be removed.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0023] Figure 1 This is a schematic diagram of the main structure of an orthopedic nail removal device provided by an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0026] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0027] Figure 5 yes Figure 1 Schematic diagram of the enlarged structure at D in the middle;

[0028] Figure 6 This is a bottom-up structural diagram of a first motor of an orthopedic nail removal device provided by an embodiment of the present disclosure;

[0029] Figure 7 This is a schematic diagram of a top view of the first motor of an orthopedic nail removal device provided by an embodiment of the present disclosure;

[0030] Figure 8 This is a schematic cross-sectional view of the second motor of an orthopedic nail removal device provided by an embodiment of the present disclosure.

[0031] Reference numerals:

[0032] 1. Bottom plate; 2. First support plate; 3. First motor; 4. First rotating shaft; 5. First rotating plate; 6. Second rotating plate; 7. First electric push rod; 8. U-shaped plate; 9. Second motor; 10. Second rotating shaft; 11. First support rod; 12. Second support plate; 13. Micro sliding table; 14. First moving plate; 15. Rotating arm; 16. Third motor; 17. Connecting rod; 18. Linear sliding table; 19. Second moving plate; 20. Arch-shaped track; 21. L-shaped plate; 22. First cam bearing; 23. Second cam bearing; 24. Arch-shaped support plate; 25. Arch-shaped rack; 26. Fourth motor; 27. Gear; 28. Second electric push rod; 29. Third moving plate; 30. Second support rod; 31. Linear guide rail; 32. Slide block; 33. Optical axis; 34. Third support rod; 35. Third support plate; 36. First bearing seat; 37. Second bearing seat; 38. First support; 39. Second support. Detailed implementation manners

[0033] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and illustration only, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0034] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] In the embodiments of the present disclosure, the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. are based on the orientation or positional relationships shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0037] Unless otherwise stated, the term "plurality" means two or more.

[0038] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0041] Combine Figures 1 to 8 As shown, an embodiment of the present disclosure provides an orthopedic nail removal device, comprising a base plate 1, a first support plate 2, a first motor 3, a first rotating shaft 4, a first rotating plate 5, a second rotating plate 6, a first electric push rod 7, a screwing member, a clamping member, and a driving member. The base plate 1 supports the entire device. The first support plate 2 is located above the base plate 1 and supports and mounts the first motor 3. The first motor 3 is mounted on the first support plate 2 and provides driving force to achieve the rotational motion function. The first rotating shaft 4 is connected to the rotating end of the first motor 3 and rotates under the drive of the first motor 3. The first rotating plate 5 is mounted on the first rotating shaft 4 and rotates under the drive of the first rotating shaft 4. It also supports and mounts a rotatable second rotating plate 6. The second rotating plate 6 is rotatably mounted on the first rotating plate 5, with the plane of the second rotating plate 6 forming an angle with the plane of the first rotating plate 5. The first electric push rod 7 is rotatably mounted between the second rotating plate 6 and the first rotating plate 5 and provides driving force to change the angle value. The screwing member is mounted on the second rotating plate 6 and includes a rotatable cutter head 40. The cutter head 40 includes a straight-shaped and a cross-shaped cutter head for screwing steel nails. The clamping member is mounted on the second rotating plate 6 and includes two clamping arms 41 that can move closer to or further away from each other. The clamping ends of the two clamping arms 41 are each provided with a notch for clamping the steel nail in the form of a column. The cutter head 40 is located between the two notches and does not interfere with each other during movement. The driving member is mounted between the base plate 1 and the first support plate 2 to provide a driving force to drive the first support plate 2 to perform linear and rotational motion.

[0042] The disclosed embodiments provide an orthopedic nail removal device. Controlling the driving member drives the first support plate 2 to perform linear and rotational motion, ultimately moving the cutter head 40 and two clamping arms 41 to the nail removal location. Controlling the first electric push rod 7 drives the second rotating plate 6 to rotate, ultimately driving the cutter head 40 and two clamping arms 41 to rotate about the first rotating plate 5. Controlling the first motor 3 drives the first rotating shaft 4 to rotate, ultimately driving the cutter head 40 and two clamping arms 41 to rotate about the first rotating shaft 4. This further adjusts the orientation of the cutter head 40 and two clamping arms 41 so that the cutter head 40 and two clamping arms 41 are aligned with the nail. Controlling the driving member again causes the cutter head 40 and two clamping arms 41 to contact and reset the nail, completing the nail removal operation. During the nail removal process, the cutter head 40 can be used to remove screw-shaped nails, while the two clamping arms 41 can be used to remove rod-shaped nails, thereby enabling the removal of nails of varying shapes.

[0043] Optionally, combined Figure 1 and Figure 2 As shown, the screwing member includes a C-shaped plate 8, a second motor 9, and a second rotating shaft 10. The C-shaped plate 8 is mounted on the second rotating plate 6 and is used to support and mount the second motor 9 and the rotatable second rotating shaft 10. The second motor 9 is mounted on one of the two opposite side walls of the C-shaped plate 8 to provide driving force. The second rotating shaft 10 is rotatably mounted on the other of the two opposite side walls of the C-shaped plate 8 and can rotate relative to the C-shaped plate 8. One end of the second rotating shaft 10 is connected to the rotating end of the second motor 9, and the other end of the second rotating shaft 10 is connected to the cutter head 40.

[0044] In the embodiment of the present disclosure, the second motor 9 is controlled to operate, so as to drive the second rotating shaft 10 to rotate, thereby driving the cutter head 40 to rotate, thereby being able to automatically screw in the steel nail in the form of a screw.

[0045] Optionally, combined Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8As shown, the clamping member includes a first support rod 11, a second support plate 12, a fine motion slide 13, a first movable plate 14, a rotating arm 15, a third motor 16 and a connecting rod 17. The first support rod 11 is mounted on the second rotating plate 6 for supporting and mounting the second support plate 12. The second support plate 12 is mounted on the first support rod 11 for supporting and mounting the fine motion slide 13. The fine motion slide 13 is mounted on the second support plate 12 for achieving short-distance movement. The first movable plate 14 is mounted on the movable end of the fine motion slide 13 and is driven by the fine motion slide 13 to perform short-distance movement. The rotating arm 15 is rotatably connected to the two clamping arms 41 and can rotate relative to the two clamping arms 41. The two rotating arms 15 each include meshing teeth, and the meshing teeth on the two rotating arms 15 mesh with each other so that the two rotating arms 15 can only rotate towards or in opposite directions. One of the two rotating arms 15 is rotatably mounted on the first movable plate 14 and can rotate relative to the first movable plate 14. A third motor 16 is mounted on the first movable plate 14 to provide driving force for rotational motion. The other of the two rotating arms 15 is connected to the rotating end of the third motor 16 and is driven to rotate by the third motor 16. Connecting rods 17 are rotatably mounted between the first movable plate 14 and the two clamping arms 41, respectively, and can rotate relative to the first movable plate 14 and the two clamping arms 41, forming a parallelogram structure.

[0046] In the disclosed embodiment, by controlling the micro-slide 13 to work, the first movable plate 14 can be driven to move, and finally the two clamping arms 41 can be driven to move, thereby changing the relative position relationship with the cutter head 40. When the cutter head 40 extends from between the two clamping arms 41, the cutter head 40 can be used to rotate a steel nail in the form of a screw. When the two clamping arms 41 surround the cutter head 40, the two clamping arms 41 can clamp the steel nail in the form of a column. At this time, by controlling the third motor 16 to work, the rotating arm 15 connected thereto can be driven to rotate. Then, under the meshing action between the teeth of the meshing teeth, the other rotating arm 15 can rotate in the opposite direction. Then, with the support of the two connecting rods 17, the two clamping arms 41 can move closer to or farther away from each other, thereby clamping or loosening the steel nail in the form of a column.

[0047] Optionally, combined Figure 1 、 Figure 3 、 Figure 5 and Figure 6As shown, the driving component includes a linear slide 18, a second movable plate 19, an arched track 20, a L-shaped plate 21, a first cam bearing 22, a second cam bearing 23, an arched support plate 24, an arched rack 25, a fourth motor 26, a gear 27, a second electric push rod 28, a third movable plate 29 and a second support rod 30. The linear slide 18 is mounted on the top surface of the base plate 1 to provide driving force and realize the long-distance movement function. The second movable plate 19 is mounted on the movable end of the linear slide 18 and moves under the drive of the linear slide 18. The arched track 20 is mounted on the top surface of the second movable plate 19 and surrounds the first support plate 2 to guide the movement so as to advance along a predetermined path. The arched track 20 includes a connected arched flat plate and an arched arc plate, and the arched flat plate is located on the inner side of the arched arc plate. The L-shaped plate 21 is adjacent to the arched track 20 and moves along the path of the arched track 20. The first cam bearing 22 is mounted on the L-shaped plate 21 and clamps the arched flat plate to serve as a longitudinal limit. The second cam bearing 23 is mounted on the L-shaped plate 21 and clamps the arched arc plate to serve as a lateral limit. The arched support plate 24 is mounted on the top surface of the second movable plate 19, and the arched track 20 is located on the inner side of the arched support plate 24 to support and install the arched rack 25. The arched rack 25 is mounted on the outer side of the arched support plate 24. The fourth motor 26 is mounted on the L-shaped plate 21 and is located on the outer side of the arched support plate 24 to provide driving force to achieve the rotational motion function. The gear 27 is mounted on the rotating end of the fourth motor 26 and rotates under the drive of the fourth motor 26. The gear 27 is engaged with the arched rack 25 to convert the rotational motion into linear motion. A second electric push rod 28 is mounted on the L-shaped plate 21, with its movable end pointing inwardly of the arched track 20, providing the driving force for linear movement. A third movable plate 29 is mounted on the movable end of the second electric push rod 28 and is driven by the second electric push rod 28. A second support rod 30 is mounted between the third movable plate 29 and the first support plate 2 to determine the relative position of the third movable plate 29 and the first support plate 2.

[0048] In the disclosed embodiment, controlling the linear slide 18 to operate can drive the second movable plate 19 to move, thereby driving the arched track 20 and the arched support plate 24 to move longitudinally as a whole, and ultimately driving the cutter head 40 and the two clamping arms 41 to move longitudinally. Controlling the fourth motor 26 to operate, under the guiding and supporting functions of the arched track 20, the plurality of first cams and the plurality of second cam bearings 23, and the meshing action between the teeth of the arched rack 25 and the gear 27, the profile plate 21 can move along the arched track, ultimately driving the cutter head 40 and the two clamping arms 41 to move. Therefore, by cooperating with the linear slide 18 and the fourth motor 26, the cutter head 40 and the two clamping arms 41 can be driven to move longitudinally and along the arched track, thereby being able to point to different areas of the human body and remove nails from different areas of the human body. Controlling the second electric push rod 28 to operate can drive the third movable plate 29 to move closer to or away from the human body. Through the second support rod 30, the first support plate 2 can be driven closer to or away from the human body. Finally, the cutter head 40 and the two clamping arms 41 are driven to move closer to or away from the human body, completing the nail removal operation.

[0049] Optionally, combined Figure 1 As shown, the arched rack 25 includes a semi-annular rack and a straight rack. The semi-annular rack is mounted on the outer side of the arched support plate 24. The straight rack is mounted on the outer side of the arched support plate 24 and is connected to both ends of the semi-annular rack.

[0050] In the disclosed embodiment, the arched rack 25 is composed of a semi-annular rack and two straight racks, and then works in conjunction with the gear 27 to convert rotational motion into linear motion.

[0051] Optionally, combined Figure 1 As shown, it also includes a pad, a linear guide 31, a slider 32 and a fourth movable plate. The pad is mounted on the top surface of the base plate 1 to provide support and elevation. The linear guide 31 is mounted on the top surface of the pad along the direction of movement of the moving end of the linear slide 18 to support the installation of the slidable slider 32. The slider 32 is slidably mounted on the linear guide 31 and together with the linear guide 31 serves as a guide and support. The fourth movable plate is mounted on the slider 32 and is connected to the arched track 20 and the arched support plate 24.

[0052] In the embodiment of the present disclosure, under the guiding and supporting action of the linear guide rail 31 and the slider 32, the stability of the arched track 20 and the arched support plate 24 during movement can be improved, and the force on the moving end of the linear slide 18 can be reduced.

[0053] Optionally, combined Figure 6 As shown, it also includes an optical axis 33 and a linear bearing. The optical axis 33 is slidably arranged on the L-shaped plate 21 and is connected to the third movable plate 29. The linear bearing is sleeved on the optical axis 33 and installed on the L-shaped plate 21.

[0054] In the disclosed embodiment, the optical axis 33 is used to act as a guide support to improve the stability of the third movable plate 29 during movement. The linear bearing is used to reduce the friction between the optical axis 33 and the L-shaped plate 21 and improve the accuracy of the optical axis 33 when sliding relative to the L-shaped plate 21.

[0055] Optionally, combined Figure 1 and Figure 4 As shown, the system further includes a third support rod 34, a third support plate 35, a first bearing seat 36, and a first bearing. The third support rod 34 is mounted on the first support plate 2 to support and mount the third support plate 35. The third support plate 35 is mounted on the third support rod 34. The first rotating shaft 4 passes through the third support plate 35 to support and mount the first bearing seat 36. The first bearing seat 36 is mounted on the third support plate 35 and sleeved on the first rotating shaft 4 to support and mount the first bearing and limit its position. The first bearing is mounted between the first bearing seat 36 and the first rotating shaft 4 to reduce friction.

[0056] In the embodiment of the present disclosure, the design of the third support rod 34, the third support plate 35, the first bearing seat 36 and the first bearing can reduce the radial runout of the rotating shaft during rotation, thereby improving the rotation accuracy of the rotating shaft.

[0057] Optionally, combined Figure 1 and Figure 2 As shown, the second bearing seat 37 and the second bearing are also included. The second bearing seat 37 is installed on the U-shaped plate 8 and is sleeved on the second rotating shaft 10. The second bearing is installed between the second bearing seat 37 and the second rotating shaft 10.

[0058] In the disclosed embodiment, the second bearing seat 37 is used to support and mount the second bearing and to limit the second bearing. The second bearing is used to support and mount the rotatable second shaft 10, reduce the friction force on the second shaft 10, and improve the rotation accuracy of the second shaft 10.

[0059] Optionally, combined Figure 1 、 Figure 2 and Figure 4 As shown, it also includes a first support 38, an adapter, a second support 39 and a spherical bearing. The first support 38 is mounted on the first rotating plate 5 and is used to support and install the rotatable adapter. The adapter is rotatably mounted on the first support 38 and is connected to the tail end of the first electric push rod 7, and can rotate relative to the first support 38. The second support 39 is mounted on the second rotating plate 6 and is used to support and install the rotatable spherical bearing. The spherical bearing is rotatably mounted on the second support 39 and is connected to the moving end of the second electric push rod 28, and can rotate relative to the second support 39.

[0060] In the embodiment of the present disclosure, the design of the first support 38, the adapter joint, the second support 39 and the joint bearing facilitates the installation of the first electric push rod 7 between the first rotating plate 5 and the second rotating plate 6, and enables the first electric push rod 7 to rotate relative to the first rotating plate 5 and the second rotating plate 6.

[0061] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An orthopedic nail removal device, characterized in that: include: base plate; a first supporting plate, located above the bottom plate; a first motor, mounted on the first support plate; a first rotating shaft connected to a rotating end of the first motor; a first rotating plate, mounted on the first rotating shaft; a second rotating plate rotatably mounted on the first rotating plate; a first electric push rod rotatably mounted between the second rotating plate and the first rotating plate; a screwing member mounted on the second rotating plate, the screwing member comprising a rotatable cutter head; a clamping member mounted on the second rotating plate, the clamping member comprising two clamping arms that can move closer to or farther away from each other, the clamping ends of the two clamping arms each having a notch, the cutting head being located between the two notches; The driving member is installed between the base plate and the first supporting plate, and is configured to drive the first supporting plate to perform linear motion and rotational motion.

2. The orthopedic nail removal device according to claim 1, characterized in that: The screwing member comprises: A U-shaped plate, mounted on the second rotating plate; A second motor is mounted on one of the two opposite side walls of the U-shaped plate; The second rotating shaft is rotatably mounted on the other of the two opposite side walls of the U-shaped plate, one end of the second rotating shaft is connected to the rotating end of the second motor, and the other end of the second rotating shaft is connected to the cutter head.

3. The orthopedic nail removal device according to claim 1, characterized in that: The clamping member comprises: a first support rod mounted on the second rotating plate; a second support plate, mounted on the first support rod; A micro-slide is mounted on the second support plate; A first movable plate, mounted on the movable end of the micro-sliding table; a rotating arm, rotatably connected to the two clamping arms, each of the two rotating arms comprising meshing teeth, the meshing teeth on the two rotating arms meshing with each other, and one of the two rotating arms being rotatably mounted on the first movable plate; a third motor mounted on the first movable plate, wherein the other of the two rotating arms is connected to a rotating end of the third motor; The connecting rods are rotatably installed between the first movable plate and the two clamping arms.

4. The orthopedic nail removal device according to claim 1, characterized in that: The driving member includes: A linear slide is mounted on the top surface of the base plate; A second movable plate is mounted on the movable end of the linear slide; an arched track mounted on the top surface of the second movable plate and surrounding the first supporting plate, the arched track comprising an arched flat plate and an arched curved plate connected to each other, the arched flat plate being located on the inner side of the arched curved plate; An L-shaped plate, adjacent to the arched track; a first cam bearing, mounted on the L-shaped plate and clamping the arched flat plate; A second cam bearing is mounted on the L-shaped plate and clamps the arched arc plate; an arched support plate, mounted on the top surface of the second movable plate, wherein the arched track is located on the inner side of the arched support plate; an arched rack mounted on the outer side of the arched support plate; a fourth motor, mounted on the L-shaped plate and located outside the arched support plate; a gear mounted on a rotating end of the fourth motor and meshing with the arched rack; a second electric push rod, mounted on the L-shaped plate, wherein the moving end of the second electric push rod points to the inner side of the arched track; a third movable plate, mounted on the movable end of the second electric push rod; The second support rod is installed between the third movable plate and the first supporting plate.

5. The orthopedic nail removal device according to claim 4, characterized in that: The arched rack comprises: A semi-annular rack is mounted on the outer side of the arched support plate; The straight rack is installed on the outer side surface of the arched support plate and is respectively connected to the two ends of the semi-annular rack.

6. The orthopedic nail removal device according to claim 4, characterized in that: Also includes: a spacer block, mounted on the top surface of the base plate; a linear guide rail, mounted on the top surface of the pad along the movement direction of the moving end of the linear slide; A slider slidably mounted on the linear guide rail; The fourth movable plate is mounted on the slider and is connected to the arched track and the arched support plate.

7. The orthopedic nail removal device according to claim 4, characterized in that: Also includes: an optical axis slidably disposed on the L-shaped plate and connected to the third movable plate; The linear bearing is sleeved on the optical axis and mounted on the L-shaped plate.

8. An orthopedic nail removal device according to any one of claims 1 to 7, characterized in that: Also includes: a third support rod, mounted on the first support plate; a third support plate, mounted on the third support rod, wherein the first rotating shaft passes through the third support plate; a first bearing seat, mounted on the third support plate and sleeved on the first rotating shaft; The first bearing is installed between the first bearing seat and the first rotating shaft.

9. An orthopedic nail removal device according to any one of claims 1 to 7, characterized in that: Also includes: A second bearing seat is mounted on the U-shaped plate and sleeved on the second rotating shaft; The second bearing is installed between the second bearing seat and the second rotating shaft.

10. An orthopedic nail removal device according to any one of claims 1 to 7, characterized in that: Also includes: a first support, mounted on the first rotating plate; an adapter joint rotatably mounted on the first support and connected to the tail end of the first electric push rod; a second support, mounted on the second rotating plate; The joint bearing is rotatably mounted on the second support and is connected to the moving end of the second electric push rod.

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