Patient tracer connection device

Abstract

The utility model discloses a patient tracer connecting device, comprising a tracer, a connecting device and a base mechanism, wherein the connecting device comprises a rotating rod and an angle adjustment mechanism connected to the rotating rod, the base mechanism is connected to the rotating rod, and the angle adjustment mechanism is connected to the tracer. The utility model roughly adjusts the angle of the tracer in a vertical plane through a first adjustment structure of the rough adjustment mechanism, roughly adjusts the angle of the tracer in a horizontal plane through a second adjustment structure, thereby roughly adjusting the angle between the tracer and the base mechanism, finely adjusts the angle of the tracer in a vertical plane through the angle adjustment mechanism, thereby finely adjusting the angle between the tracer and the base mechanism, and further precisely adjusts the angle between the tracer and the base mechanism according to the angle between the set tooth shapes.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment and relates to a patient tracer connection device. Background Art

[0002] In spinal surgery, the doctor needs to find a point on the spine to puncture or implant a guide needle. The accuracy of the puncture point requires a high level of experience from the doctor. The accuracy of the puncture will also affect the subsequent postoperative results. The spinal surgery navigation and positioning technology based on visual navigation provides a reliable solution for precise puncture and guide needle implantation. An important component of the technology is the patient tracer used to indicate the patient's spatial position and couple the patient's spatial position with the navigation system. The key to the patient tracer is its fixed stability, convenient clamping, and minimization of secondary damage during surgery.

[0003] Existing patient tracer connection devices are usually rigidly connected to the tracer, and doctors cannot adjust the angle of the tracer. Summary of the invention

[0004] In order to overcome at least one deficiency of the prior art, the utility model provides a patient tracer connection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a patient tracer connecting device, including a tracer, a connecting device and a base mechanism, the connecting device includes a rotating rod and an angle adjustment mechanism connected to the rotating rod, the base mechanism is connected to the rotating rod, and the angle adjustment mechanism is connected to the tracer.

[0006] Furthermore, the angle adjustment mechanism includes a fixed structure and a movable structure, the fixed structure is connected to the rotating rod, the movable structure is connected to the tracer, the fixed structure and the movable structure are movably connected, the fixed structure is provided with a plurality of teeth, the movable structure is provided with a tooth shape matching the teeth, and the tooth shape is snap-fitted with the teeth.

[0007] Furthermore, the connecting device also includes a coarse adjustment mechanism, which connects the rotating rod and the base mechanism.

[0008] Furthermore, the coarse adjustment mechanism includes a first adjustment structure and a second adjustment structure, and the angle of the tracer in the vertical plane is coarsely adjusted by the first adjustment structure, and the angle of the tracer in the horizontal plane is coarsely adjusted by the second adjustment structure.

[0009] Furthermore, the fixed structure includes an outer ring, a plurality of teeth are circumferentially distributed on the end surface of the outer ring, the movable structure includes screws, compression springs and connecting pieces, the connecting piece is fixedly connected to the tracer, a plurality of teeth are circumferentially distributed on the end surface of the connecting piece, the screws penetrate the connecting piece and extend to the outer ring and are threadedly connected to the outer ring, and the compression spring is connected between the screws and the connecting piece.

[0010] Furthermore, the first adjustment structure includes a coarse fixed structure and a coarse movable structure, the coarse fixed structure is connected to the base mechanism, the coarse fixed structure is provided with a plurality of tooth grooves, and the coarse movable structure is provided with a tooth shape matching the tooth grooves, and the tooth shape is buckled with the tooth grooves.

[0011] Furthermore, the second adjustment structure includes a fixed plate, a movable plate and a rotating block, the coarse movable structure is connected to the fixed plate, the fixed plate is connected to the base mechanism, one end of the movable plate is rotatably connected to one end of the fixed plate, the other end of the movable plate is rotatably and detachably connected to the other end of the fixed plate, the rotating block is connected to the rotating rod, the rotating block is provided with a first tooth shape, the fixed plate is provided with a first tooth groove matching the first tooth shape, and the first tooth shape is buckled with the first tooth groove.

[0012] Furthermore, the first tooth shapes are distributed along the vertical direction, and a plurality of first tooth shapes are distributed along the circumference of the rotating block.

[0013] Furthermore, the base mechanism includes a base assembly and a fixing rod, the fixing rod is connected to the base assembly, the base assembly includes a base and a cover plate, the base and the cover plate are fixedly connected, the fixing rod is connected to the base, the fixing plate is connected to the cover plate, a clamping block is provided in the base assembly, and the coarse fixing structure is connected to the clamping block.

[0014] Furthermore, the angle between adjacent tooth shapes is a fixed value.

[0015] In summary, the utility model is beneficial in that:

[0016] The utility model roughly adjusts the angle of the tracer in the vertical plane by the first adjustment structure of the coarse adjustment mechanism, roughly adjusts the angle of the tracer in the horizontal plane by the second adjustment structure, thereby roughly adjusting the angle between the tracer and the base mechanism, and finely adjusts the angle of the tracer in the vertical plane by the angle adjustment mechanism, thereby finely adjusting the angle between the tracer and the base mechanism, and further finely adjusts the angle between the tracer and the base mechanism according to the set angle between the tooth shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a patient tracer connection device of the present utility model.

[0018] Figure 2 This is a schematic diagram of an exploded view of a patient tracer connection device of the present invention.

[0019] Markings in the figure: tracer 1, connecting device 2, base mechanism 3, rotating rod 21, angle adjustment mechanism 22, coarse adjustment mechanism 23, base assembly 31, fixing rod 32, clamping block 33, screw 221, compression spring 222, connecting piece 223, tooth shape 224, outer ring 225, tooth groove 226, coarse fixing structure 231, coarse movable structure 232, movable plate 234, fixing plate 235, rotating block 236, base 311, cover plate 312. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus 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 at will, and the component layout may also be more complicated.

[0022] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0024] Embodiment 1:

[0025] like Figure 1-Figure 2 As shown, a patient tracer connecting device includes a tracer 1, a connecting device 2 and a base mechanism 3, wherein the connecting device 2 includes a rotating rod 21 and an angle adjustment mechanism 22 connected to the rotating rod 21, the base mechanism 3 is connected to the rotating rod 21, and the angle adjustment mechanism 22 is connected to the tracer 1.

[0026] To facilitate the description of directions, Figure 1As shown, a three-dimensional coordinate system xyz is established, the x-axis and the y-axis are horizontal directions, the y-axis is the axial direction of the angle adjustment mechanism 22, the x-axis is perpendicular to the axial direction of the angle adjustment mechanism 22, the z-axis is the vertical direction, the plane where the xy coordinates are located is the horizontal plane, and the angle change of the tracer 1 in the horizontal plane is the angle change caused by the rotation of the tracer 1 in the direction of the arrow b, the plane where the xz coordinates are located is the vertical plane, and the angle change of the tracer 1 in the vertical plane is the angle change caused by the rotation of the tracer 1 in the direction of the arrow a.

[0027] The appearance and structure of the tracer 1 are set according to industry standards and will not be described in detail here.

[0028] The angle adjustment mechanism 22 includes a fixed structure and a movable structure. The fixed structure is connected to the rotating rod 21, and the movable structure is connected to the tracer 1. The fixed structure is provided with a plurality of tooth grooves 226, and the movable structure is provided with a tooth shape 224 matching the tooth grooves 226. The tooth grooves 226 are buckled into the tooth shape 224, so that the fixed structure and the movable structure are movably connected. The movable structure is rotated to rotate around the axial direction. The axial direction is as follows: Figure 1 The y-axis direction in the figure, the rotation direction around the y-axis is the direction of arrow a, the matching position of the tooth groove 226 and the tooth shape 224 is adjusted, and then the angle of the tracer 1 is adjusted.

[0029] like Figure 1 As shown, a plurality of tooth shapes 224 are distributed circumferentially, and the angles of adjacent tooth shapes 224 are fixed values. The adjustment angle of the tracer 1 can be controlled according to the number of adjusted tooth shapes.

[0030] The fixed structure includes an outer ring 225, and a plurality of tooth grooves 226 are circumferentially distributed on the end surface of the outer ring 225. The movable structure includes a screw 221, a compression spring 222 and a connector 223. The connector 223 is fixedly connected to the tracer 1, and a plurality of tooth shapes 224 are circumferentially distributed on the end surface of the connector 223. The screw 221 penetrates the connector 223 and extends to the outer ring 225 and is threadedly connected to the outer ring 225. The compression spring 222 is connected between the screw 221 and the connector 223. When the tracer needs to be adjusted, When the angle of the tracer 1 is adjusted, the screw 221 is loosened, and the connecting piece 223 and the outer ring 225 are out of the tight fit state. At this time, the tracer 1 is rotated to change the matching position of the tooth shape 224 and the tooth groove 226 until the tracer 1 is adjusted to the set position. At this time, the screw 221 is tightened to fasten the connecting piece 223 and the outer ring 225. At the same time, the compression spring 222 is compressed to tighten the connecting piece 223 and the outer ring 225 to achieve a tight connection between the tracer 1 and the angle adjustment mechanism 22. At this time, the tracer 1 is at the set angle.

[0031] Preferably, a rotating handle (not shown) is provided at the end of the screw 221, and the surface of the rotating handle is provided with textures to enhance friction.

[0032] The connecting device 2 also includes a coarse adjustment mechanism 23 , which is respectively connected to the rotating rod 21 and the base mechanism 3 , and the angle of the tracer 1 is coarsely adjusted and positioned by the coarse adjustment mechanism 23 , and then the angle of the tracer 1 is finely adjusted and positioned by the angle adjustment mechanism 22 .

[0033] The coarse adjustment mechanism 23 is a two-level adjustment structure. Specifically, the coarse adjustment mechanism 23 connects the rotating rod 21 and the base mechanism 3. The coarse adjustment mechanism 23 coarsely adjusts the angle of the tracer 1 in the horizontal plane to the vertical plane. Specifically, the coarse adjustment mechanism 23 includes a first adjustment structure and a second adjustment structure. The first adjustment structure is used to coarsely adjust the angle of the tracer 1 in the vertical plane, that is, the angle of rotation in the direction of arrow a. The second adjustment structure is used to coarsely adjust the angle of the tracer 1 in the horizontal plane, that is, the angle of rotation in the direction of arrow b.

[0034] The first adjustment structure includes a coarse fixed structure 231 and a coarse movable structure 232. The coarse fixed structure 231 is connected to the base mechanism 3. The coarse fixed structure 231 is provided with a plurality of tooth grooves 226. The coarse movable structure is provided with a tooth shape 224 matching the tooth grooves 226. The tooth grooves 226 are buckled into the tooth shape 224, so that the coarse fixed structure and the coarse movable structure are movably connected. The coarse movable structure is rotated to make it rotate axially, so as to adjust the matching position of the tooth grooves 226 and the tooth shape 224, thereby adjusting the angle of the tracer 1 in the vertical plane.

[0035] The structure and principle of the coarse active structure 232 are similar to those of the active structure, and are not described in detail here.

[0036] The second adjustment structure includes a fixed plate 235, a movable plate 234 and a rotating block 236. The coarse movable structure 232 is connected to the fixed plate 235, the fixed plate 235 is connected to the base mechanism 3, one end of the movable plate 234 is rotatably connected to one end of the fixed plate 235, the other end of the movable plate 234 is rotatably and detachably connected to the other end of the fixed plate 235, the rotating block 236 is connected to the rotating rod 21, the rotating block 236 is provided with a first tooth shape, the fixed plate 235 is provided with a first tooth groove matching the first tooth shape, and the first tooth shape is distributed along the vertical direction, thereby realizing coarse adjustment of the angle of the tracer 1 in the vertical direction.

[0037] Preferably, a plurality of first tooth shapes are distributed along the circumference of the rotating block 236 .

[0038] The adjustment process of the second adjustment structure is as follows: when it is necessary to roughly adjust the angle of the tracer 1 in the horizontal plane, the movable plate 234 and the fixed plate 235 are disassembled, and the rotating block 236 is rotated in the direction of the arrow b to adjust the matching position of the first tooth shape and the first tooth groove, thereby roughly adjusting the angle of the tracer 1 in the horizontal plane. After the position of the tracer 1 is set, the movable plate 234 and the fixed plate 235 are fixed, and the rotating block 236 is fixed to fix the position of the tracer 1; when it is necessary to roughly adjust the angle of the tracer 1 in the vertical plane, the screw 221 of the coarse movable structure 232 is loosened to adjust the matching position of the tooth groove 226 and the tooth shape 224 to adjust the angle of the tracer 1 in the vertical plane. After the adjustment is completed, the screw 221 is tightened.

[0039] The base mechanism 3 includes a base assembly 31 and fixed rods 32. The fixed rods 32 are connected to the base assembly 3. The number of the fixed rods 32 can be set as needed. In this embodiment, the number of the fixed rods 32 is set to two groups, and the fixed rods 32 are distributed along the z-axis.

[0040] The base assembly 31 includes a base 311 and a cover plate 312 . The base 311 and the cover plate 312 are fixedly connected. The fixing rod 32 is connected to the base 311 , and the fixing plate 235 is connected to the cover plate 312 .

[0041] A clamping block 33 is disposed in the base assembly 31 , and the coarse fixing structure 231 is connected to the clamping block 33 .

[0042] Preferably, the base 311 is provided with a plurality of weight-reducing holes.

[0043] In this embodiment, the angle of the tracer 1 in the vertical plane is coarsely adjusted by the first adjustment structure of the coarse adjustment mechanism 23, and the angle of the tracer 1 in the horizontal plane is coarsely adjusted by the second adjustment structure, thereby coarsely adjusting the angle between the tracer 1 and the base mechanism 3, and the angle of the tracer 1 in the vertical plane is finely adjusted by the angle adjustment mechanism 22, thereby finely adjusting the angle between the tracer 1 and the base mechanism 3, and according to the set angle between the tooth shapes, the angle between the tracer 1 and the base mechanism 3 is further finely adjusted.

[0044] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A patient tracer connection device, characterized in that: The invention comprises a tracer, a connecting device and a base mechanism, wherein the connecting device comprises a rotating rod and an angle adjustment mechanism connected to the rotating rod, the base mechanism is connected to the rotating rod, and the angle adjustment mechanism is connected to the tracer, the connecting device also comprises a coarse adjustment mechanism, the coarse adjustment mechanism connects the rotating rod and the base mechanism, the coarse adjustment mechanism comprises a first adjustment structure and a second adjustment structure, the angle of the tracer in the vertical plane is coarsely adjusted by the first adjustment structure, and the angle of the tracer in the horizontal plane is coarsely adjusted by the second adjustment structure.

2. A patient tracer connection device according to claim 1, characterized in that: The angle adjustment mechanism includes a fixed structure and a movable structure, the fixed structure is connected to the rotating rod, the movable structure is connected to the tracer, the fixed structure and the movable structure are movably connected, the fixed structure is provided with a plurality of tooth grooves or tooth shapes, the movable structure is provided with matching tooth shapes or tooth grooves, and the teeth are snap-fitted and connected with the tooth grooves.

3. A patient tracer connection device according to claim 2, characterized in that: The fixed structure includes an outer ring, and a plurality of tooth grooves are circumferentially distributed on the end surface of the outer ring. The movable structure includes screws, compression springs and connecting pieces. The connecting piece is fixedly connected to the tracer, and a plurality of tooth shapes are circumferentially distributed on the end surface of the connecting piece. The screws penetrate the connecting piece and extend to the outer ring and are threadedly connected to the outer ring. The compression spring is connected between the screws and the connecting piece.

4. A patient tracer connection device according to claim 1, characterized in that: The first adjustment structure includes a coarse fixed structure and a coarse movable structure. The coarse fixed structure is connected to the base mechanism, the coarse fixed structure is provided with a plurality of tooth grooves, and the coarse movable structure is provided with a tooth shape matching the tooth grooves, and the tooth shape is buckled with the tooth grooves.

5. A patient tracer connection device according to claim 1, characterized in that: The second adjustment structure includes a fixed plate, a movable plate and a rotating block. The coarse movable structure is connected to the fixed plate, the fixed plate is connected to the base mechanism, one end of the movable plate is rotatably connected to one end of the fixed plate, the other end of the movable plate is rotatably and detachably connected to the other end of the fixed plate, the rotating block is connected to the rotating rod, the rotating block is provided with a first tooth shape, the fixed plate is provided with a first tooth groove matching the first tooth shape, and the first tooth shape is buckled with the first tooth groove.

6. A patient tracer connection device according to claim 5, characterized in that: The first tooth shapes are distributed along the vertical direction, and a plurality of first tooth shapes are distributed along the circumference of the rotating block.

7. A patient tracer connection device according to claim 1, characterized in that: The base mechanism includes a base assembly and a fixing rod, the fixing rod is connected to the base assembly, the base assembly includes a base and a cover plate, the base and the cover plate are fixedly connected, the fixing rod is connected to the base, the fixing plate is connected to the cover plate, a clamping block is provided in the base assembly, and the coarse fixing structure is connected to the clamping block.

8. A patient tracer connection device according to claim 2, characterized in that: The angle between adjacent tooth shapes is a fixed value.

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