Orthopedic positioning device

Abstract

The utility model relates to an orthopedics department positioning device and relates to the technical field of medical auxiliary instruments, the orthopedics department positioning device comprises a support and a positioning needle and further comprises a deviated body part and a connecting assembly, and the deviated body part is arranged in a bent mode and comprises a vertical part, a horizontal part and a bent part used for connecting the vertical part and the horizontal part; the end, away from the bent part, of the vertical part is connected with the support through a connecting assembly, the end, away from the bent part, of the horizontal part is connected with a positioning needle, and the projection of the positioning needle on the connecting assembly and the connecting assembly are staggered. The arrangement of the deviating part prevents the connecting assembly from being located over the positioning needle, prevents the connecting assembly from shielding the operation view of the positioning needle, and does not affect the operation of a doctor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical auxiliary devices, in particular to an orthopedic positioning device. BACKGROUND

[0002] The orthopedic positioner is an indispensable part of visual orthopedic surgery, and it plays a role of position reference. The whole system relies on the connection between it and the bone as a basis.

[0003] The principle of the visual navigation system is to calculate the relative position of the tool and the orthopedic positioner in real time through the device, so as to obtain the actual position of the tool. Therefore, its stability and accuracy play a crucial role in the visual navigation system.

[0004] The main components of the orthopedic positioner include a positioning needle and a bracket. The positioning needle is arranged at the end of the bracket through a connecting assembly. The positioning needle is fixed on the spinous process by knocking. The bracket is provided with an optical reflection ball which can reflect the infrared light emitted by the navigation system for navigation.

[0005] However, since the positioning needle is located directly below the connecting assembly, the connecting assembly will block the surgical field of view of the positioning needle when the doctor operates, thereby affecting the doctor's operation. CONTENT OF THE INVENTION

[0006] Therefore, the orthopedic positioning device is provided. The arrangement of the biasing member avoids the connecting assembly being located directly above the positioning needle, avoids the connecting assembly blocking the surgical field of view of the positioning needle, and does not affect the doctor's operation.

[0007] Therefore, the orthopedic positioning device is provided. The arrangement of the biasing member avoids the connecting assembly being located directly above the positioning needle, avoids the connecting assembly blocking the surgical field of view of the positioning needle, and does not affect the doctor's operation.

[0008] In one embodiment, the end of the horizontal part for connecting with the positioning needle is provided with a calibration protrusion, and the diameter of the calibration protrusion gradually decreases in the direction away from the horizontal part. The calibration protrusion is provided with a plurality of calibration protrusions and is arranged at intervals.

[0009] In one of the embodiments, the connecting assembly comprises a sleeve, which is arranged in a tee shape, a first through hole of the sleeve is sleeved on the support, and the sleeve is connected with the support, one end of the vertical part extends into a second through hole of the sleeve and is rotationally connected with the sleeve, and an adjusting member extends into a third through hole of the sleeve and is connected with the eccentric part, the other end of the adjusting member extends out of the sleeve, the adjusting member is rotationally connected with the sleeve, and driving the adjusting member to rotate relative to the sleeve drives the eccentric part to rotate relative to the sleeve.

[0010] In one of the embodiments, one end of the adjusting member extending out of the sleeve is provided with a rotating handle.

[0011] In one of the embodiments, the adjusting member is provided with a mounting cavity connected with the vertical part, the mounting cavity comprises a threaded cavity and a limiting cavity which are in communication with each other, the limiting cavity is located at one end of the threaded cavity which is towards the eccentric part, and the diameter of the limiting cavity is larger than that of the threaded cavity, the connecting assembly further comprises a first limiting member, the first limiting member is sleeved on the vertical part and is used for connecting the sleeve, one end of the first limiting member which is towards the adjusting member gradually reduces in outer diameter and extends into the limiting cavity, so as to avoid the adjusting member from falling off from the second through hole of the sleeve.

[0012] In one of the embodiments, one end of the adjusting member which is towards the eccentric part is outwardly convex to form a limiting part, the connecting assembly further comprises a second limiting member, the second limiting member is sleeved on the adjusting member and is detachably connected with the sleeve, the inner diameter of the second limiting member is smaller than the outer diameter of the limiting part, so as to avoid the adjusting member from falling off from the third through hole of the sleeve.

[0013] In one of the embodiments, one end of the support which is towards the sleeve is provided with a connecting ball, the connecting assembly further comprises an elastic member and a mounting member, one end of the elastic member is abutted with the sleeve and the other end is abutted with the mounting member, the mounting member is located in the sleeve and is connected with the first limiting member, the mounting member is provided with a mounting groove, the connecting ball extends into the sleeve, the diameter of the mounting groove is smaller than the diameter of the connecting ball, and the diameter of the first through hole of the sleeve is smaller than the diameter of the connecting ball to limit the connecting ball from being separated from the sleeve.

[0014] In one of the embodiments, the side of the support which is away from the positioning needle is further provided with light-emitting lamp beads; the surface of the light-emitting lamp beads is provided with a transparent protective layer; the light-emitting lamp beads are provided with a plurality of light-emitting lamp beads and are arranged at intervals.

[0015] In one of the embodiments, the support is provided with a fixing groove for fixing the light-emitting lamp beads, the diameter of the fixing groove gradually increases towards the opening end, and the opening of the fixing groove is higher than the light-emitting lamp beads.

[0016] In one embodiment, an electromagnetic sensor is further included, which is fixed to the support.

[0017] The orthopedic positioning device provided by the embodiments of the present application comprises a support and a positioning needle, further comprises a biasing member and a connecting assembly, the biasing member is bent, the biasing member comprises a vertical portion, a horizontal portion and a bending portion for connecting the vertical portion and the horizontal portion, one end of the vertical portion away from the bending portion is connected with the support through the connecting assembly, one end of the horizontal portion away from the bending portion is connected with the positioning needle, and the projection of the connecting assembly is arranged in a staggered manner with the connecting assembly. The arrangement of the biasing member avoids that the connecting assembly is located directly above the positioning needle, avoids that the connecting assembly blocks the surgical field of the positioning needle, and does not affect the surgery of the doctor. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 shows a structure schematic diagram of an orthopedic positioning device provided by an embodiment of the present application;

[0019] Figure 2 Fig. 2 shows a sectional view of an orthopedic positioning device provided by an embodiment of the present application;

[0020] Figure 3 Fig. 3 shows an enlarged schematic diagram of A part of Fig. 1. Figure 2

[0021] Legend of reference signs:

[0022] 1, support; 11, connecting ball; 12, fixing groove; 2, positioning needle; 3, connecting assembly; 31, sleeve; 311, first part; 312, second part; 32, adjusting member; 321, mounting cavity; 322, limiting portion; 323, handle; 33, first limiting member; 34, second limiting member; 35, elastic member; 36, mounting member; 361, mounting groove; 4, biasing member; 41, vertical portion; 42, horizontal portion; 43, bending portion; 44, calibration protrusion; 5, light-emitting lamp bead; 6, electromagnetic sensor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0024] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the diagrams, not drawn according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be arbitrarily changed, and the layout pattern of the components can be more complex. ​

[0025] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and do not have technical substantive significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the orthopedic locator, should still fall within the scope of the technology disclosed by the orthopedic locator.

[0026] The orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "intermediate", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential" and the like as used in this specification are based on the orientations or positional relationships shown in the drawings, and are only used for the purpose of simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the orthopedic locator. In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0027] The main components of the orthopedic locator include a positioning needle 2 and a support 1, the positioning needle 2 is arranged at the end of the support 1 through a connecting assembly 3, the positioning needle 2 is fixed on the spinous process by knocking, and the support 1 is provided with an optical reflection ball which can reflect the infrared light emitted by the navigation system for navigation. However, since the positioning needle 2 is located directly below the connecting assembly 3, the connecting assembly 3 will block the surgical field of view of the positioning needle 2 when the doctor operates, thereby affecting the doctor to perform surgery.

[0028] To solve the above technical problems, with reference to Figures 1-3 , Figure 1 a structure schematic diagram of an orthopedic locator provided by the embodiment of the application is shown, Figure 2 a sectional view of an orthopedic locator provided by the embodiment of the application is shown, Figure 3 an enlarged schematic view of part A of Figure 2 .

[0029] The application includes an orthopedic positioning device, which includes a support 1 and a positioning needle 2, and further includes a biasing member 4 and a connecting assembly 3, the biasing member 4 is arranged in a bent manner, the biasing member 4 includes a vertical portion 41, a horizontal portion 42 and a bending portion 43 for connecting the vertical portion 41 and the horizontal portion 42, one end of the vertical portion 41 away from the bending portion 43 is connected with the support 1 through the connecting assembly 3, one end of the horizontal portion 42 away from the bending portion 43 is connected with the positioning needle 2, and the projection of the positioning needle 2 on the connecting assembly 3 is arranged in a staggered manner with the connecting assembly 3.

[0030] It needs to be understood that the orthopedic positioning device comprises a positioning needle 2, one end of the positioning needle 2 in the length direction is a pointed end, the pointed end acts on the spinous process, and the other end of the positioning needle 2 in the length direction is connected with the offset body 4. The offset body 4 is bent, and the offset body 4 comprises a vertical part 41, a horizontal part 42, and a bending part 43 for connecting the vertical part 41 and the horizontal part 42, the vertical part 41, the horizontal part 42, and the bending part 43 are made of the same material, and the vertical part 41, the horizontal part 42, and the bending part 43 are integrally formed. The number of the vertical part 41, the horizontal part 42, and the bending part 43 is not limited in the application, and can be one, two or more. In one example, the vertical part 41 is provided with one, the bending part 43 is provided with one, and the horizontal part 42 is provided with one, and the offset body 4 is provided in an “L” shape.

[0031] The end of the horizontal part 42 of the offset body 4 away from the bending part 43 is connected with the end of the positioning needle 2 away from the pointed end, and the connection mode is fixed connection, which can be welding or integrally formed, and the application does not limit it. The end of the vertical part 41 of the offset body 4 away from the bending part 43 is connected with the support 1 through the connecting assembly 3, so that the projection of the positioning needle 2 is misaligned with the connecting assembly 3, and when the doctor operates, the connecting assembly 3 is not directly above the positioning needle 2, and does not block the surgical field of the doctor, and does not affect the doctor's operation.

[0032] In some optional embodiments, recesses are further provided on both sides of the offset body 4 to reduce the weight of the offset body 4, improve the comfort of the doctor's operation, and also reduce the material cost of the offset body 4.

[0033] Referring to Figure 1 and Figure 2 In some optional embodiments, the end of the horizontal part 42 for connecting with the positioning needle 2 is provided with a calibration protrusion 44, and the diameter of the calibration protrusion 44 gradually decreases in the direction away from the horizontal part 42. The material of the calibration protrusion 44 is the same as that of the offset body 4, the calibration protrusion 44 is integrally formed with the offset body 4, the calibration protrusion 44 is located at the end of the horizontal part 42 away from the bending part 43, and the end of the calibration protrusion 44 away from the horizontal part 42 is provided in a pointed end. The doctor can form a pointed end projection in the CT projection according to the calibration protrusion 44, use other tool pointed ends to align the calibration protrusion 44 in the operation, and then judge according to the image on the CT projection to check the accuracy of the tool at any time.

[0034] The calibration protrusion 44 is provided with a plurality of calibration protrusions 44 and is spaced apart, and in one example, the calibration protrusion 44 is provided with three calibration protrusions 44 and is spaced apart on the circumferential side of the horizontal part 42 to improve the accuracy of the test.

[0035] Referring to Figure 2 and Figure 3In some optional embodiments, the connecting assembly 3 comprises a sleeve 31 and an adjusting member 32; the sleeve 31 is in a three-way pipe arrangement, a first through hole of the sleeve 31 is sleeved on the support 1, and the sleeve 31 is connected with the support 1; one end of the vertical part 41 extends into a second through hole of the sleeve 31 and is rotationally connected with the sleeve 31; one end of the adjusting member 32 extends into a third through hole of the sleeve 31 and is connected with the biasing member 4, the other end of the adjusting member 32 extends out of the sleeve 31, and the adjusting member 32 is rotationally connected with the sleeve 31; the adjusting member 32 is driven to rotate relative to the sleeve 31 to drive the biasing member 4 to rotate relative to the sleeve 31.

[0036] The sleeve 31 is in a three-way pipe arrangement, the sleeve 31 has three through holes, which are a first through hole, a second through hole and a third through hole; the first through hole is located at the side of the sleeve 31, the first through hole is sleeved on one end of the support 1 and connected with the support 1; the second through hole is located below the sleeve 31, one end of the vertical part 41 of the biasing member 4 away from the curved part 43 extends into the second through hole and the biasing member 4 can rotate in the sleeve 31; the third through hole is located above the sleeve 31, one end of the adjusting member 32 extends into the third through hole of the sleeve 31 and is connected with the biasing member 4, and the adjusting member 32 is detachably connected with the biasing member 4; in one example, the adjusting member 32 is threadedly connected with the biasing member 4, and the adjusting member 32 is rotationally connected with the sleeve 31, that is, the adjusting member 32 can rotate in the sleeve 31.

[0037] The other end of the adjusting member 32 extends out of the sleeve 31, and an operator can drive the adjusting member 32 to rotate in the sleeve 31 by operating the end of the adjusting member 32 extending out of the sleeve 31, thereby driving the biasing member 4 to rotate in the sleeve 31, so that the positioning needle 2 rotates 360° with the sleeve 31 as the center, and the position of the positioning needle 2 can be adjusted according to the needs of the doctor, thereby further improving the convenience of the doctor's operation and the use range of the positioning needle 2.

[0038] In some optional embodiments, the end of the adjusting member 32 extending out of the sleeve 31 is provided with a rotating handle 323. The rotating handle 323 comprises four supporting corners, and a doctor can hold the rotating handle 323 to control the rotation of the adjusting member 32 in the sleeve 31 and the position of the positioning needle 2. The rotating handle 323 is detachably connected with the adjusting member 32, so as to facilitate replacement of the rotating handle 323 or assembly of the orthopedic positioning device.

[0039] In some alternative embodiments, the adjusting member 32 is provided with a mounting cavity 321 connected with the vertical part 41, the mounting cavity 321 comprises a threaded cavity and a limiting cavity in communication with each other, the limiting cavity is located at one end of the threaded cavity towards the biasing part 4, and the diameter of the limiting cavity is larger than that of the threaded cavity, the connecting assembly 3 further comprises a first limiting member 33, the first limiting member 33 is sleeved with the vertical part 41 and connected with the sleeve 31, and the outer diameter of one end of the first limiting member 33 towards the adjusting member 32 gradually decreases and extends into the limiting cavity, so as to avoid the adjusting member 32 from falling off the second through hole of the sleeve 31.

[0040] The vertical part 41 of the biasing part 4 is provided with an external thread at one end away from the curved part 43, the vertical part 41 of the biasing part 4 extends into the threaded cavity of the adjusting member 32, so that the biasing part 4 is threadedly connected with the adjusting member 32. During installation, the first limiting member 33 is placed into the sleeve 31 and connected with the sleeve 31, the first limiting member 33 is sleeved with the vertical part 41 of the biasing part 4, so that the small end of the first limiting member 33 extends into the limiting cavity, and the first limiting member 33 abuts against the adjusting member 32, thereby avoiding the adjusting member 32 from falling off the second through hole of the sleeve 31.

[0041] In some alternative embodiments, the adjusting member 32 is outwardly convex at one end towards the biasing part 4 to form a limiting part 322, the connecting assembly 3 further comprises a second limiting member 34, the second limiting member 34 is sleeved with the adjusting member 32 and detachably connected with the sleeve 31, and the inner diameter of the second limiting member 34 is smaller than the outer diameter of the limiting part 322, so as to avoid the adjusting member 32 from falling off the third through hole of the sleeve 31. The limiting part 322 is correspondingly arranged with the limiting cavity, and the second limiting member 34 is located in the sleeve 31 and threadedly connected with the sleeve 31. During installation, the knob 323 is separated from the adjusting member 32, then the second limiting member 34 is sleeved with the adjusting member 32, the second limiting member 34 and the adjusting member 32 are placed into the sleeve 31, and then the second limiting member 34 is connected with the sleeve 31, since the inner diameter of the second limiting member 34 is smaller than the outer diameter of the limiting part 322, the second limiting member 34 can avoid the adjusting member 32 from falling off the third through hole of the sleeve 31.

[0042] In some alternative embodiments, the bracket 1 is provided with a connecting ball 11 at one end towards the sleeve 31, the connecting assembly 3 further comprises a resilient member 35 and a mounting member 36, one end of the resilient member 35 abuts against the sleeve 31 and the other end abuts against the mounting member 36, the mounting member 36 is located in the sleeve 31 and connected with the first limiting member 33, and the mounting member 36 is provided with a mounting groove 361, the connecting ball 11 extends into the sleeve 31, the diameter of the mounting groove 361 is smaller than the diameter of the connecting ball 11, and the diameter of the first through hole of the sleeve 31 is smaller than the diameter of the connecting ball 11 to limit the connecting ball 11 from being separated from the sleeve 31.

[0043] The connecting ball 11 and the support 1 are made of the same material, and the connecting ball 11 and the support 1 are integrally formed. Alternatively, the connecting ball 11 and the support 1 are threadedly connected. The connecting ball 11 extends into the first through hole of the sleeve 31. Since the caliber of the first through hole of the sleeve 31 is smaller than the diameter of the connecting ball 11, the connecting ball 11 cannot be separated from the sleeve 31. In order to facilitate the installation of the connecting ball 11, the sleeve 31 comprises a first part 311 and a second part 312. The first part 311 and the second part 312 are detachably connected, for example, threadedly connected. The first through hole is located at the first part 311. The second through hole and the third through hole are located at the second part 312.

[0044] The elastic member 35 and the mounting member 36 are located in the first part 311. The elastic member 35 is a spring, a disc spring or the like. One end of the elastic member 35 abuts against the sleeve 31, and the other end abuts against the mounting member 36. The mounting member 36 is connected to the first limiting member 33 through a connecting rod. The mounting member 36 is adapted to the inner cavity of the first part 311. The mounting member 36 can move along the length direction of the first part 311. The mounting member 36 is provided with a mounting groove 361. The end of the connecting ball 11 away from the support 1 extends into the mounting groove 361.

[0045] In use, the doctor drives the support 1 to move towards the sleeve 31, so that the connecting ball 11 moves towards the biasing member 4. The doctor drives the mounting member 36 to move towards the biasing member 4. At this time, the elastic member 35 is compressed. The connecting ball 11 can rotate in the inner cavity of the first part 311. When it is rotated to a suitable position, the doctor removes the force on the support 1. The elastic member 35 returns to the original position. The biasing member 4 is driven to move towards the connecting ball 11, so that the connecting ball 11 abuts against the first through hole. The relative rotation between the connecting ball 11 and the first part 311 is avoided.

[0046] The arrangement of the connecting ball 11, the mounting member 36 and the elastic member 35 enables the sleeve 31 to rotate around the center of the connecting ball 11. Thus, the positioning needle 2 can rotate around the center of the connecting ball 11. The movement range of the positioning needle 2 is improved. The position of the positioning needle 2 can be adjusted according to the needs of the doctor. Thus, the convenience of the doctor in operation is further improved.

[0047] Referring to Figure 1 In some optional embodiments, the side of the support 1 away from the positioning needle 2 is further provided with a light-emitting lamp bead 5. Each light-emitting lamp bead 5 is separately powered, and constant current control is adopted, so that the brightness of each light-emitting lamp bead 5 is basically consistent. Compared with the traditional reflective lamp bead, the application can reduce the recognition error problem of uneven camera exposure caused by inconsistent brightness of the lamp bead.

[0048] The surface of the light-emitting lamp bead 5 is provided with a transparent protective layer. The transparent protective layer can be a hard transparent silica gel layer. The hard transparent silica gel layer has good light transmission and high wear resistance.

[0049] The light-emitting lamp beads 5 are arranged in multiple and are arranged at intervals, further improving the accuracy. In an example, the light-emitting lamp beads 5 are arranged in four and are respectively located at four corners of the support 1.

[0050] In some optional embodiments, the support 1 is provided with a fixing groove 12 for fixing the light-emitting lamp beads 5, thereby facilitating the installation of the light-emitting lamp beads 5. The diameter of the fixing groove 12 gradually increases towards the opening end, reducing the shielding of the light emitted by the light-emitting lamp beads 5, and improving the light-emitting effect of the light-emitting lamp beads 5. The opening of the fixing groove 12 is higher than the light-emitting lamp beads 5, which can improve the protection effect of the light-emitting lamp beads 5, reduce the damage of external articles to the light-emitting lamp beads 5, and improve the use frequency of the optical tool.

[0051] Referring to Figure 2 In some optional embodiments, an electromagnetic sensor 6 is further included, and the electromagnetic sensor 6 is fixed to the support 1. When the optical and magnetic navigation can work normally, the navigation position data is based on the optical navigation of the light-emitting lamp beads 5, and the data of the electromagnetic sensor 6 is corrected to the optical. When the light-emitting lamp beads 5 are shielded and the navigation data is lost, the data of the electromagnetic sensor 6 can be seamlessly connected in time, improving the navigation anti-interference ability. The application can have optical navigation and magnetic navigation positioning ability at the same time, and can also be adjusted to single optical navigation positioning or single magnetic navigation positioning according to the requirement.

[0052] The technical features of the above embodiments can be combined in any manner. To make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0053] The above embodiments only express several implementation manners of the application, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An orthopedic positioning device, comprising a bracket (1) and a positioning pin (2), characterized in that, It also includes a eccentric component (4) and a connecting assembly (3). The eccentric component (4) is bent and includes a vertical part (41) and a horizontal part (42) and a bent part (43) for connecting the vertical part (41) and the horizontal part (42). The end of the vertical part (41) away from the bent part (43) is connected to the bracket (1) through the connecting assembly (3). The end of the horizontal part (42) away from the bent part (43) is connected to the positioning pin (2). The projection of the positioning pin (2) on the connecting assembly (3) is offset from the connecting assembly (3).

2. The orthopedic positioning device according to claim 1, characterized in that, The horizontal part (42) is provided with a calibration protrusion (44) at one end for connecting with the positioning pin (2). The diameter of the calibration protrusion (44) gradually decreases in the direction away from the horizontal part (42). Multiple calibration protrusions (44) are provided and spaced apart.

3. The orthopedic positioning device according to claim 1, characterized in that, The connection component (3) includes: A sleeve (31) is configured as a three-way tube. The first through hole of the sleeve (31) is fitted onto the bracket (1), and the sleeve (31) is connected to the bracket (1). One end of the vertical part (41) extends into the second through hole of the sleeve (31) and is rotatably connected to the sleeve (31). An adjusting member (32) has one end inserted into the third through hole of the sleeve (31) and connected to the eccentric member (4). The other end of the adjusting member (32) extends out of the sleeve (31). The adjusting member (32) is rotatably connected to the sleeve (31) and drives the adjusting member (32) to rotate relative to the sleeve (31) so as to drive the eccentric member (4) to rotate relative to the sleeve (31).

4. The orthopedic positioning device according to claim 3, characterized in that, The adjusting member (32) has a rotating handle (323) at one end extending out of the sleeve (31).

5. The orthopedic positioning device according to claim 3, characterized in that, The adjusting member (32) is provided with a mounting cavity (321) connected to the vertical part (41). The mounting cavity (321) includes a threaded cavity and a limiting cavity that are interconnected. The limiting cavity is located at the end of the threaded cavity facing the offset member (4), and the diameter of the limiting cavity is larger than the diameter of the threaded cavity. The connecting assembly (3) also includes a first limiting member (33). The first limiting member (33) is sleeved on the vertical part (41) and used for connecting the sleeve (31). The outer diameter of the end of the first limiting member (33) facing the adjusting member (32) gradually decreases and extends into the limiting cavity to prevent the adjusting member (32) from falling out of the second through hole of the sleeve (31).

6. The orthopedic positioning device according to claim 3, characterized in that, The adjusting member (32) protrudes outward toward the offset member (4) to form a limiting part (322). The connecting assembly (3) also includes a second limiting member (34). The second limiting member (34) is sleeved on the adjusting member (32) and detachably connected to the sleeve (31). The inner diameter of the second limiting member (34) is smaller than the outer diameter of the limiting part (322) to prevent the adjusting member (32) from falling out of the third through hole of the sleeve (31).

7. The orthopedic positioning device according to claim 5, characterized in that, The bracket (1) is provided with a connecting ball (11) at one end facing the sleeve (31). The connecting assembly (3) also includes an elastic element (35) and a mounting element (36). One end of the elastic element (35) abuts against the sleeve (31) and the other end abuts against the mounting element (36). The mounting element (36) is located in the sleeve (31) and connected to the first limiting element (33). The mounting element (36) is provided with a mounting groove (361). The connecting ball (11) extends into the sleeve (31). The diameter of the mounting groove (361) is smaller than the diameter of the connecting ball (11). The diameter of the first through hole of the sleeve (31) is smaller than the diameter of the connecting ball (11) to restrict the connecting ball (11) from disengaging from the sleeve (31).

8. The orthopedic positioning device according to claim 1, characterized in that, The bracket (1) is provided with a light-emitting lamp bead (5) on the side opposite to the positioning pin (2); the surface of the light-emitting lamp bead (5) is provided with a transparent protective layer; there are multiple light-emitting lamp beads (5) arranged at intervals.

9. The orthopedic positioning device according to claim 8, characterized in that, The bracket (1) is provided with a fixing groove (12) for fixing the light-emitting lamp bead (5). The diameter of the fixing groove (12) gradually increases towards the opening end, and the opening of the fixing groove (12) is higher than the light-emitting lamp bead (5).

10. The orthopedic positioning device according to claim 1, characterized in that, It also includes an electromagnetic sensor (6), which is fixed to the bracket (1).

Images