Orthopedic positioning device

Abstract

The invention 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 equipment, and in particular to an orthopedic positioning device. Background Art

[0002] As an indispensable part of visual orthopedic surgery, the orthopedic locator serves as a position reference, and the entire system relies on the connection between it and the bone.

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

[0004] The main components of the orthopedic locator include a positioning pin and a bracket. The positioning pin is set at the end of the bracket through a connecting component. The positioning pin is fixed on the spinal convexity by knocking. The bracket is equipped with an optical reflective ball that can reflect the infrared light emitted by the navigation system for navigation.

[0005] However, since the positioning needle is located directly below the connecting component, the connecting component will block the surgical field of view of the positioning needle when the doctor is operating, thereby affecting the doctor's operation. Summary of the invention

[0006] Based on this, an orthopedic positioning device is provided, in which the setting of the offset member avoids the connection component being located directly above the positioning needle, thereby avoiding the connection component from blocking the surgical field of view of the positioning needle and not affecting the doctor's operation.

[0007] To this end, an embodiment of the present application provides an orthopedic positioning device, including a bracket and a positioning needle, and also including a eccentric member and a connecting assembly. The eccentric member is bent, and the eccentric member includes a vertical portion, a horizontal portion, and a curved portion for connecting the vertical portion and the horizontal portion. The end of the vertical portion away from the curved portion is connected to the bracket through the connecting assembly, and the end of the horizontal portion away from the curved portion is connected to the positioning needle. The projection of the positioning needle on the connecting assembly is offset from the connecting assembly.

[0008] In one of the embodiments, a calibration protrusion is provided at one end of the horizontal portion for connecting with the positioning pin, and the diameter of the calibration protrusion gradually decreases in a direction away from the horizontal portion; the calibration protrusion is provided in plurality and is arranged at intervals.

[0009] In one embodiment, the connecting assembly includes: a sleeve, which is arranged in a three-way pipe, the first through hole of the sleeve is sleeved on the bracket, and the sleeve is connected to the bracket, one end of the vertical portion extends into the second through hole of the sleeve and is rotatably connected to the sleeve; and an adjusting member, one end of which extends into the third through hole of the sleeve and is connected to the eccentric member, the other end of the adjusting member extends out of the sleeve, the adjusting member is rotatably connected to the sleeve, and the adjusting member is driven to rotate relative to the sleeve to drive the eccentric member to rotate relative to the sleeve.

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

[0011] In one embodiment, the adjusting member is provided with an installation cavity connected to the vertical portion, the installation cavity includes a threaded cavity and a limit cavity which are interconnected, the limit cavity is located at one end of the threaded cavity facing the eccentric member, and the caliber of the limit cavity is larger than the caliber of the threaded cavity, the connecting assembly also includes a first limit member, the first limit member is sleeved on the vertical portion and is used for the sleeve connection, the outer diameter of the first limit member gradually decreases toward one end of the adjusting member and extends into the limit cavity to prevent the adjusting member from falling off from the second through hole of the sleeve.

[0012] In one embodiment, the adjusting member protrudes outwardly at one end toward the biasing member to form a limiting portion, and the connecting assembly also includes a second limiting member, which is sleeved on the adjusting member and detachably connected to the sleeve, and the inner diameter of the second limiting member is smaller than the outer diameter of the limiting portion to prevent the adjusting member from falling off from the third through hole of the sleeve.

[0013] In one embodiment, a connecting ball is provided at one end of the bracket facing the sleeve, and the connecting assembly also includes an elastic member and a mounting member, one end of the elastic member abuts against the sleeve and the other end abuts against the mounting member, the mounting member is located in the sleeve and connected to 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 connection ball from being separated from the sleeve.

[0014] In one of the embodiments, a light-emitting lamp bead is further provided on the side of the bracket facing away from the positioning pin; a transparent protective layer is provided on the surface of the light-emitting lamp bead; and a plurality of the light-emitting lamp beads are provided and arranged at intervals.

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

[0016] In one of the embodiments, an electromagnetic sensor is further included, and the electromagnetic sensor is fixed to the bracket.

[0017] The orthopedic positioning device provided in the embodiment of the present application includes a bracket and a positioning needle, and also includes a biased member and a connecting assembly. The biased member is bent, and includes a vertical portion, a horizontal portion, and a bending portion for connecting the vertical portion and the horizontal portion. The end of the vertical portion away from the bending portion is connected to the bracket through the connecting assembly, and the end of the horizontal portion away from the bending portion is connected to the positioning needle. The projection of the positioning needle on the connecting assembly is misaligned with the connecting assembly. The setting of the biased member avoids the connecting assembly being located directly above the positioning needle, and avoids the connecting assembly from blocking the surgical field of the positioning needle, which will not affect the doctor's surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram showing the structure of an orthopedic locator provided in an embodiment of the present application is shown;

[0019] Figure 2 A cross-sectional view of an orthopedic positioner provided in an embodiment of the present application is shown;

[0020] Figure 3 Show Figure 2 A magnified schematic diagram of part A.

[0021] Description of reference numerals:

[0022] 1. Bracket; 11. Connecting ball; 12. Fixing groove; 2. Positioning pin; 3. Connecting assembly; 31. Sleeve; 311. First part; 312. Second part; 32. Adjusting member; 321. Mounting cavity; 322. Limiting part; 323. Handle; 33. First limiting member; 34. Second limiting member; 35. Elastic member; 36. Mounting member; 361. Mounting groove; 4. Deflecting member; 41. Vertical part; 42. Horizontal part; 43. Bending part; 44. Calibration protrusion; 5. Luminous lamp bead; 6. Electromagnetic sensor. DETAILED DESCRIPTION

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

[0024] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0026] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] The main components of the orthopedic locator include a positioning pin 2 and a bracket 1. The positioning pin 2 is set at the end of the bracket 1 through a connecting component 3. The positioning pin 2 is fixed on the spinal convexity by knocking. The bracket 1 is equipped with an optical reflective ball, which can reflect the infrared light emitted by the navigation system for navigation. However, since the positioning pin 2 is located directly below the connecting component 3, the connecting component 3 will block the surgical field of the positioning pin 2 when the doctor is operating, thereby affecting the doctor's operation.

[0028] In order to solve the above technical problems, refer to Figure 1-Figure 3 , Figure 1 A schematic diagram showing the structure of an orthopedic locator provided in an embodiment of the present application is shown in FIG. Figure 2 A cross-sectional view of an orthopedic positioner provided in an embodiment of the present application is shown. Figure 3 Show Figure 2 A magnified schematic diagram of part A.

[0029] The present application includes an orthopedic positioning device, which includes a bracket 1 and a positioning needle 2, and also includes a eccentric member 4 and a connecting component 3. The eccentric member 4 is bent, and the eccentric member 4 includes a vertical portion 41 and a horizontal portion 42 and a bent portion 43 for connecting the vertical portion 41 and the horizontal portion 42. The end of the vertical portion 41 away from the bent portion 43 is connected to the bracket 1 through the connecting component 3, and the end of the horizontal portion 42 away from the bent portion 43 is connected to the positioning needle 2. The projection of the positioning needle 2 on the connecting component 3 is offset from the connecting component 3.

[0030] It should be understood that the orthopedic positioning device includes a positioning needle 2, one end of the positioning needle 2 along the length direction is a sharp tip, the sharp tip acts on the ridge, and the other end of the positioning needle 2 along the length direction is connected to the eccentric member 4. The eccentric member 4 is bent, and the eccentric member 4 includes a vertical portion 41 and a horizontal portion 42 and a curved portion 43 for connecting the vertical portion 41 and the horizontal portion 42. The vertical portion 41, the horizontal portion 42 and the curved portion 43 are made of the same material, and the vertical portion 41, the horizontal portion 42 and the curved portion 43 are integrally formed. The present application does not limit the number of the vertical portion 41, the horizontal portion 42 and the curved portion 43, which can be one, two or more. In one example, one vertical portion 41 is provided, one curved portion 43 is provided, and one horizontal portion 42 is provided, and the eccentric member 4 is provided in an "L" shape.

[0031] The end of the horizontal portion 42 of the eccentric member 4 away from the curved portion 43 is connected to the end of the positioning needle 2 away from the tip, and the connection method is a fixed connection, which can be welding or an integrated molding setting, and this application does not limit it. The end of the vertical portion 41 of the eccentric member 4 away from the curved portion 43 is connected to the bracket 1 through the connecting component 3, so that the projection of the positioning needle 2 on the connecting component 3 is misaligned with the connecting component 3. When the doctor is operating, the connecting component 3 will not be directly above the positioning needle 2, and will not block the doctor's surgical field of view, and will not affect the doctor's surgery.

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

[0033] Reference Figure 1 and Figure 2 In some optional embodiments, a calibration protrusion 44 is provided at one end of the horizontal portion 42 for connection with the positioning needle 2, and the diameter of the calibration protrusion 44 gradually decreases in the direction away from the horizontal portion 42. The material of the calibration protrusion 44 is the same as that of the eccentric member 4, and the calibration protrusion 44 is integrally formed with the eccentric member 4. The calibration protrusion 44 is located at the end of the horizontal portion 42 away from the curved portion 43, and the end of the calibration protrusion 44 away from the horizontal portion 42 is pointed. The doctor can use the tip of other tools to align with the calibration protrusion 44 in the CT projection according to the tip projection formed by the calibration protrusion 44 during the operation, and then judge by looking at the image on the CT projection, so as to check the accuracy of the tool at any time.

[0034] There are multiple calibration protrusions 44 arranged at intervals. In one example, there are three calibration protrusions 44, which are respectively located on the peripheral side surfaces of the horizontal portion 42 to improve the accuracy of the inspection.

[0035] Reference Figure 2 and Figure 3In some optional embodiments, the connecting assembly 3 includes a sleeve 31 and an adjusting member 32; the sleeve 31 is arranged in a three-way pipe, the first through hole of the sleeve 31 is sleeved on the bracket 1, and the sleeve 31 is connected to the bracket 1, one end of the vertical portion 41 extends into the second through hole of the sleeve 31 and is rotatably connected to the sleeve 31; one end of the adjusting member 32 extends into the third through hole of the sleeve 31 and is 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 the adjusting member 32 is driven to rotate relative to the sleeve 31 to drive the eccentric member 4 to rotate relative to the sleeve 31.

[0036] The sleeve 31 is arranged as a three-way tube, and the sleeve 31 has three through holes, namely a first through hole, a second through hole and a third through hole. The first through hole is located on the side of the sleeve 31, and the first through hole is sleeved with one end of the bracket 1 and is connected to the bracket 1; the second through hole is located below the sleeve 31, and the end of the vertical portion 41 of the eccentric member 4 away from the curved portion 43 extends from the second through hole and the eccentric member 4 can rotate in the sleeve 31; the third through hole is located above the sleeve 31, and one end of the adjusting member 32 extends into the third through hole of the sleeve 31 and is connected to the eccentric member 4, and the adjusting member 32 is detachably connected to the eccentric member 4. In an example, the adjusting member 32 is threadedly connected to the eccentric member 4, and the adjusting member 32 is rotatably connected to 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. The operator can drive the adjusting member 32 to rotate in the sleeve 31 by operating one end of the adjusting member 32 extending out of the sleeve 31, thereby driving the eccentric member 4 to rotate in the sleeve 31, so that the positioning needle 2 can rotate 360° with the sleeve 31 as the center, and then the position of the positioning needle 2 can be adjusted according to the doctor's needs, thereby further improving the convenience of the doctor's operation and increasing the scope of use of the positioning needle 2.

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

[0039] In some optional embodiments, the adjusting member 32 is provided with an installation cavity 321 connected to the vertical portion 41, and the installation cavity 321 includes a threaded cavity and a limit cavity that are interconnected. The limit cavity is located at one end of the threaded cavity facing the eccentric member 4, and the caliber of the limit cavity is larger than the caliber of the threaded cavity. The connecting assembly 3 also includes a first limit member 33, and the first limit member 33 is sleeved on the vertical portion 41 and is used for connection with the sleeve 31. The outer diameter of the first limit member 33 gradually decreases toward one end of the adjusting member 32 and extends into the limit cavity to prevent the adjusting member 32 from falling off from the second through hole of the sleeve 31.

[0040] An end of the vertical portion 41 of the eccentric member 4 away from the curved portion 43 is provided with an external thread, and the vertical portion 41 of the eccentric member 4 is inserted into the threaded cavity of the adjusting member 32, so that the eccentric member 4 is threadedly connected with the adjusting member 32. During installation, the first stopper 33 is placed in the sleeve 31 and connected to the sleeve 31, and the first stopper 33 is sleeved on the vertical portion 41 of the eccentric member 4, so that the small end of the first stopper 33 is inserted into the stopper cavity, and the first stopper 33 is in contact with the adjusting member 32, thereby preventing the adjusting member 32 from falling off from the second through hole of the sleeve 31.

[0041] In some optional embodiments, the end of the adjusting member 32 facing the offset member 4 is convex to form a limiting portion 322, and the connecting assembly 3 further includes a second limiting member 34, the second limiting member 34 is sleeved with the adjusting member 32 and is detachably connected to the sleeve 31, and the inner diameter of the second limiting member 34 is smaller than the outer diameter of the limiting portion 322, so as to prevent the adjusting member 32 from falling off from the third through hole of the sleeve 31. The limiting portion 322 is arranged corresponding to the limiting cavity, and the second limiting member 34 is located in the sleeve 31 and is threadedly connected to the sleeve 31. During installation, the handle 323 is separated from the adjusting member 32, and then the second limiting member 34 is sleeved with the adjusting member 32, and the second limiting member 34 and the adjusting member 32 are placed in the sleeve 31, and then the second limiting member 34 is connected to the sleeve 31. Since the inner diameter of the second limiting member 34 is smaller than the outer diameter of the limiting portion 322, the arrangement of the second limiting member 34 can prevent the adjusting member 32 from falling off from the third through hole of the sleeve 31.

[0042] In some optional embodiments, a connecting ball 11 is provided at one end of the bracket 1 facing the sleeve 31, and the connecting assembly 3 also includes an elastic member 35 and a mounting member 36, 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 located in the sleeve 31 and is connected to the first limiting member 33, 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 connection ball 11 from being separated from the sleeve 31.

[0043] The connecting ball 11 is made of the same material as the bracket 1. The connecting ball 11 and the bracket 1 are integrally formed, or the connecting ball 11 and the bracket 1 are threadedly connected. The connecting ball 11 extends into the first through hole of the sleeve 31. Since the diameter of the first through hole of the sleeve 31 is smaller than the diameter of the connecting ball 11, the connecting ball 11 will not be detached from the sleeve 31. To facilitate the installation of the connecting ball 11, the sleeve 31 includes 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, and 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 both located in the first part 311. The elastic member 35 is an elastic member such as a spring or a disc spring. 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, and the end of the connecting ball 11 facing away from the bracket 1 extends into the mounting groove 361.

[0045] During use, the doctor drives the bracket 1 toward the sleeve 31, so that the connecting ball 11 moves toward the eccentric member 4, and drives the mounting member 36 to move toward the eccentric member 4. At this time, the elastic member 35 is compressed, and the connecting ball 11 can rotate in the inner cavity of the first part 311. When it rotates to a suitable position, the doctor removes the force on the bracket 1, and the elastic member 35 returns to its original position, driving the eccentric member 4 to move toward the connecting ball 11, thereby making the connecting ball 11 abut against the first through hole to prevent the connecting ball 11 and the first part 311 from rotating relative to each other.

[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, thereby driving the positioning needle 2 to rotate around the center of the connecting ball 11, thereby increasing the moving range of the positioning needle 2, and adjusting the position of the positioning needle 2 according to the doctor's needs, thereby further improving the convenience of the doctor's operation.

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

[0048] A transparent protective layer is provided on the surface of the light-emitting lamp bead 5. The transparent protective layer may be a hard transparent silicone layer. The hard transparent silicone layer has good light transmittance and high wear resistance.

[0049] There are multiple light-emitting lamp beads 5 arranged at intervals to further improve the accuracy. In an example, there are four light-emitting lamp beads 5 and they are respectively located at four corners of the bracket 1.

[0050] In some optional embodiments, the bracket 1 is provided with a fixing groove 12 for fixing the light emitting lamp bead 5, so as to facilitate the installation of the light emitting lamp bead 5. The diameter of the fixing groove 12 gradually increases toward the open end, reducing the shielding of the light emitted by the light emitting lamp bead 5 and improving the light emitting effect of the light emitting lamp bead 5. The opening of the fixing groove 12 is higher than the light emitting lamp bead 5, which can improve the protection effect of the light emitting lamp bead 5, reduce the damage to the light emitting lamp bead 5 by external objects, and increase the number of times the optical tool can be used.

[0051] Reference Figure 2 In some optional embodiments, an electromagnetic sensor 6 is further included, and the electromagnetic sensor 6 is fixed to the bracket 1. When both optical and magnetic navigation can work normally, the navigation position data is based on the optical navigation of the light-emitting lamp bead 5, and the data of the electromagnetic sensor 6 is corrected optically. When the light-emitting lamp bead 5 is blocked and the navigation data is lost, the data of the electromagnetic sensor 6 can be seamlessly connected in time to improve the navigation anti-interference ability. The present application can have both optical navigation and magnetic navigation positioning capabilities, and can also be adjusted to single optical navigation positioning or single magnetic navigation positioning according to needs.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An orthopedic positioning device, comprising a bracket (1) and a positioning needle (2), characterized in that: The invention also comprises a lateral member (4) and a connecting assembly (3), wherein the lateral member (4) is arranged in a bent state, and comprises a vertical portion (41), a horizontal portion (42), and a bent portion (43) for connecting the vertical portion (41) and the horizontal portion (42), wherein one end of the vertical portion (41) away from the bent portion (43) is connected to the bracket (1) via the connecting assembly (3), and one end of the horizontal portion (42) away from the bent portion (43) is connected to the positioning pin (2), and the projection of the positioning pin (2) on the connecting assembly (3) is arranged to be offset from the connecting assembly (3).

2. The orthopedic positioning device according to claim 1, characterized in that: One end of the horizontal portion (42) used 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 a direction away from the horizontal portion (42); a plurality of calibration protrusions (44) are provided and are arranged at intervals.

3. The orthopedic positioning device according to claim 1, characterized in that: The connection component (3) comprises: The sleeve (31) is arranged in a three-way pipe, the first through hole of the sleeve (31) is sleeved on the bracket (1), and the sleeve (31) is connected to the bracket (1), and one end of the vertical portion (41) extends into the second through hole of the sleeve (31) and is rotatably connected to the sleeve (31); and An adjusting member (32) has one end extending into the third through hole of the sleeve (31) and connected to the eccentric member (4), and the other end of the adjusting member (32) extending out of the sleeve (31). The adjusting member (32) is rotatably connected to the sleeve (31), and the adjusting member (32) is driven to rotate relative to the sleeve (31) 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: One end of the adjusting member (32) extending out of the sleeve (31) is provided with a rotating handle (323).

5. The orthopedic positioning device according to claim 3, characterized in that: The adjusting member (32) is provided with an installation cavity (321) connected to the vertical portion (41), and the installation cavity (321) comprises a threaded cavity and a limiting cavity which are interconnected, and the limiting cavity is located at one end of the threaded cavity facing the eccentric member (4), and the caliber of the limiting cavity is larger than the caliber of the threaded cavity. The connecting assembly (3) also comprises a first limiting member (33), and the first limiting member (33) is sleeved on the vertical portion (41) and used for connecting to the sleeve (31), and the outer diameter of the first limiting member (33) gradually decreases toward one end of the adjusting member (32) and extends into the limiting cavity, so as to prevent the adjusting member (32) from falling off from the second through hole of the sleeve (31).

6. The orthopedic positioning device according to claim 3, characterized in that: One end of the adjusting member (32) protrudes outward toward the biasing member (4) to form a limiting portion (322), and the connecting assembly (3) further comprises a second limiting member (34), the second limiting member (34) being sleeved on the adjusting member (32) and being detachably connected to the sleeve (31), the inner diameter of the second limiting member (34) being smaller than the outer diameter of the limiting portion (322) so as to prevent the adjusting member (32) from falling off from the third through hole of the sleeve (31).

7. The orthopedic positioning device according to claim 5, characterized in that: A connecting ball (11) is provided at one end of the bracket (1) facing the sleeve (31). The connecting assembly (3) further comprises an elastic member (35) and a mounting member (36). 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 located in the sleeve (31) and connected to the first limiting member (33). 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). The diameter of the first through hole of the sleeve (31) is smaller than the diameter of the connecting ball (11) so as to limit the connection ball (11) from being separated from the sleeve (31).

8. The orthopedic positioning device according to claim 1, characterized in that: A light-emitting lamp bead (5) is also provided on the side of the bracket (1) facing away from the positioning pin (2); a transparent protective layer is provided on the surface of the light-emitting lamp bead (5); a plurality of the light-emitting lamp beads (5) are provided and are 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 comprises an electromagnetic sensor (6), wherein the electromagnetic sensor (6) is fixed to the bracket (1).

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