Patient reference frame for spinal surgery

Abstract

The utility model discloses a patient reference frame for spinal surgery, which comprises an identified structure setting structure on which an identified structure is arranged; the extension rod is fixedly connected with the identified structure setting structure; the angle adjusting part comprises a connecting rod connected with the connecting part and an angle adjusting structure, the extension rod is fixedly connected with the angle adjusting structure in an angle mode, and the angle adjusting structure rotates relative to the connecting rod and drives the extension rod connected with the angle adjusting structure and the recognized structure setting structure to rotate around the connecting rod at the same time. Through the arrangement of the scheme, the arrangement structure of the identified structure can be led out to a suitable area for non-surgical operation through the arrangement of the extension rod and the angle adjusting structure, and the extension rod plays a role in leading out the arrangement structure of the identified structure to a position far away from a central area where the connecting part is located; the angle adjusting structure is matched with the extension rod, so that the identified structure setting structure is arranged in an optimal area which does not interfere with the surgical operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the medical instrument technical field, especially relates to the patient reference frame field in the operation navigation field, concretely is a patient reference frame for spinal operation. BACKGROUND

[0002] The operation navigation system needs to set a patient reference frame with NDI small balls fixed on the patient and an operating instrument reference frame fixed on the operating instrument when running, to ensure the tracking of the patient's body position change and the tracking of the operating instrument position change, to ensure the tracking effect.

[0003] Especially for the reference frame fixed on the patient, the reference frame setting should not interfere with the operation, and the reference frame should also be tracked by the navigation system.

[0004] For ordinary operations such as long bone operations, the patient reference frame only needs to be fixed in an area that can move with the operation position to achieve tracking, because the setting space range is large, the patient reference frame usually includes a vertical operating area rod, and the NDI small ball setting part is set to the reference frame rod body away from the human body, such as CN220967417U-a human reference frame fixing instrument and CN221411348U-a two-direction rotating adjustable reference frame.

[0005] For spinal operations, the patient reference frame is usually fixed to the spinous process position near the vertebral body because the operation area space is small, but because the position is only, using the traditional patient reference frame, the NDI small ball will interfere with the operation because it is set near the operation area.

[0006] The utility model provides a patient reference frame for spinal operation aiming at the above technical problems. SUMMARY

[0007] Because the operation area space is limited, it is impossible to set the reference frame to the vertebral body position far away from the operation area, so the horizontal position of the reference frame can be changed to set it to a position that does not interfere with the operation area, which can solve the problem of setting the connecting part to the operation area position and horizontally leading the NDI small ball out of the appropriate non-operation area. The present application mainly adjusts the reference frame part to solve the above problems, and the connecting part setting can select the idea of CN221786673U-a tracer installation connecting device for spinal operation navigation in the prior art.

[0008] The specific technical scheme is: a patient reference frame for spinal operation, comprising

[0009] The identified structure setting structure is provided with an identified structure;

[0010] The extension rod is fixedly connected with the identified structure setting structure;

[0011] The angle adjusting part comprises a connecting rod connected with the connecting part and an angle adjusting structure,

[0012] The extension rod is fixedly connected with the angle adjusting structure, the angle adjusting structure rotates relative to the connecting rod, and simultaneously drives the extension rod and the identified structure setting structure connected with the angle adjusting structure to rotate around the connecting rod.

[0013] Further, the overall length of the extension rod is longer than that of the angle adjusting part, and the overall center is lower, so that the stability of the identified structure setting structure drawn out by the extension rod is higher, and the problem of inaccurate tracking caused by shaking is avoided.

[0014] Further, the identified structure setting structure comprises a hollow quadrilateral structure, and an extension part is extended outward from the vertex position of the quadrilateral structure, and the NDI small ball is arranged at the edge position of each extension part. In this way, the frame of the quadrilateral structure can be used to maintain the stability of the entire identified structure setting structure, and the distance between the NDI small balls is increased by the extension part, so as to ensure the effectiveness of tracking and achieve the effect of extending outward to the surgical area, further avoiding interference with the surgical operation.

[0015] Further, the extension rod is integrally connected with one of the extension parts, and the central axes of the extension rod and the extension part are consistent. Through this arrangement, the length of the extension rod and the extension part can be lengthened, and the NDI small ball can be arranged at a position farther away from the center of the connecting part without increasing the overall mass.

[0016] Further, a protruding structure perpendicular to the overall angle adjusting structure is arranged on the angle adjusting structure, and the protruding structure and the extension rod are combined by a screw structure. Through this arrangement, the extension rod and the identified structure setting structure can be set respectively after the angle adjusting structure and the connecting part are set, so as to avoid the difficulty in setting caused by unstable center of gravity when the angle adjusting structure is set with the extension rod and the identified structure setting structure.

[0017] Further, the angle adjusting structure comprises a pipe type structure, a plurality of arc-shaped locking openings are arranged at the bottom of the pipe type structure, a locking rod is arranged on the connecting rod and is perpendicular to the connecting rod and can enter the arc-shaped locking opening to lock the angle; the locking rods are symmetrically arranged on both sides of the connecting rod, and the angle adjusting structure further comprises a rotating adjusting structure, the rotating adjusting structure comprises a threaded rod and a rotating knob; a threaded pipe is arranged on the connecting rod, the threaded rod is matched with the threaded pipe, and the connecting rod extends into the pipe type structure; when the locking rod starts to enter the arc-shaped locking opening, the threaded rod is driven to rotate by rotating the rotating knob, the connecting rod gradually enters the pipe type structure, the locking rod is in close contact with the arc-shaped locking opening to lock the angle, and reverse rotation makes the locking rod separate from the arc-shaped locking opening, so that the connecting rod rotates relative to the pipe type structure, and the angle is adjusted.

[0018] Technical effects

[0019] Through the arrangement of the above scheme, the identified structure setting structure can be led to a suitable area of non-surgical operation through the arrangement of the extension rod and the angle adjusting structure. The extension rod leads the identified structure setting structure to a position away from the center area of the connecting part, and the angle adjusting structure cooperates with the extension rod to set the identified structure in the best area without interfering with the surgical operation.

[0020] The identified structure setting structure comprises a hollow quadrilateral structure, and an extension part extends outward from the top position of the quadrilateral structure. The extension rod is integrally connected with one of the extension parts, and the central axes of the extension rod and the extension part are consistent. This arrangement can lengthen the extension rod and the extension part, and set the NDI ball at a position farther away from the center area of the connecting part without increasing the overall mass. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the extension rod and the identified structure setting structure integrally connected in the utility model;

[0023] Figure 3 It is a schematic diagram of the angle adjusting part structure in the utility model;

[0024] Figure 4 It is a schematic diagram of the longitudinal section structure of the angle adjusting part in the utility model;

[0025] MAIN REFERENCE MARK EXPLANATION

[0026] 1, the identified structure setting structure; 11, the extension part; 12, the ball setting hole; 13, the connecting column; 2, the extension rod; 21, the anastomosis groove; 31, the connecting rod; 311, the locking rod; 32, the pipe type structure; 321, the protruding structure; 3211, the anastomosis protrusion; 322, the arc-shaped locking mouth; 331, the threaded rod; 332, the rotating knob; 4, the screw structure. DETAILED DESCRIPTION

[0027] A patient reference frame for spinal surgery, comprising an identified structure setting structure 1, on which an identified structure is arranged; an extension rod 2, fixedly connected with the identified structure setting structure 1; an angle adjusting part, comprising a connecting rod 31 connected with a connecting part and an angle adjusting structure,

[0028] The extension rod 2 is fixedly connected with the angle adjusting structure, the angle adjusting structure rotates relative to the connecting rod 31, and simultaneously drives the extension rod 2 and the identified structure setting structure 1 connected with the angle adjusting structure to rotate around the connecting rod 31.

[0029] Through the above-mentioned scheme, the identified structure setting structure 1 can be led out to a suitable area of non-surgical operation through the setting of the extension rod 2 and the angle adjusting structure. The extension rod 2 serves to lead the identified structure setting structure 1 out to a central area position away from the connecting part, and the cooperation of the angle adjusting structure and the extension rod 2 realizes the setting of the identified structure setting structure 1 in the best area that does not interfere with the surgical operation.

[0030] More preferably, the angle adjusting structure is arranged perpendicularly to the extension rod 2, or the extension rod 2 extends obliquely away from the connecting part; such arrangement can avoid the extension rod 2 from being close to the patient, making the operation more convenient. The connecting part is a part directly connected with the spine, and can refer to the prior art CN221786673U-a tracer mounting and connecting device for spinal surgery navigation, which is a structure clamped to the position of the patient's spinous process. This embodiment does not show this structure.

[0031] The identified structure setting structure 1 is provided with NDI balls recognized by the navigation system, and can also be other structures that can be tracked by the navigation system, such as the identified structure with color partition in the color recognition instrument in the holographic navigation system in the patent CN218391267U-a holographic navigation system; the following uses the commonly used NDI ball in the field of surgical navigation as the identified structure for description.

[0032] More preferably, the overall length of the extension rod 2 is longer than the angle adjustment portion, which is to reduce the weight of the reference frame and to lower the overall center of gravity, and the identified structure setting structure 1 is more stable and avoids tracking inaccuracies caused by shaking.

[0033] More preferably, the identified structure setting structure 1 is a hollow irregular polygon structure, preferably a quadrilateral structure, which is an irregular quadrilateral structure without a symmetry axis, and the NDI balls are arranged at the vertexes of the quadrilateral structure.

[0034] Alternatively, another embodiment is that the identified structure setting structure 1 comprises a hollow irregular polygon structure, and an extension portion 11 is arranged at each vertex of the irregular polygon structure, and the NDI balls are arranged at the edges of each extension portion 11, preferably a quadrilateral structure, and the extension portion 11 is arranged at each vertex of the quadrilateral structure. In this way, the frame of the quadrilateral structure can maintain the stability of the entire identified structure setting structure 1, and the extension portion 11 increases the distance between the NDI balls, ensuring the effectiveness of tracking and achieving the effect of extending outward from the surgical area, further avoiding interference with surgical operations. More preferably, the extension rod 2 is integrally connected with one extension portion 11, and the central axes of the two are consistent. In this way, the length of the extension rod 2 and the extension portion 11 can be lengthened, and the NDI balls can be arranged at a position farther away from the center of the connection portion without increasing the overall weight.

[0035] More preferably, a protruding structure 321 perpendicular to the overall angle adjustment structure is arranged on the angle adjustment structure, and the protruding structure 321 is combined with the extension rod 2 through the screw structure 4. In this way, the angle adjustment structure and the connection portion can be arranged first, and then the extension rod 2 and the identified structure setting structure 1 can be arranged integrally, which can be operated in two steps to avoid difficulties in arranging the angle adjustment structure of the extension rod 2 and the identified structure setting structure 1 due to unstable center of gravity.

[0036] More preferably, the protruding structure 321 or the extension rod 2 is provided with a matching protrusion 3211, and the extension rod 2 or the protruding structure 321 is provided with a matching groove 21 that matches the protrusion 3211. The protrusion 3211 is provided as a non-circular protrusion. When the protruding structure 321 is combined with the extension rod 2, the protrusion 3211 and the groove 21 are matched together. In this way, the relative rotation between the protruding structure 321 and the extension rod 2 can be prevented after they are combined, the positional stability can be maintained, and the tracking error can be avoided. More preferably, the protruding structure 321 is provided as a rectangle, and the rectangle is provided on the edge of the protruding structure 321.

[0037] More preferably, the extension rod 2 and the identified structure setting structure 1 are provided as plates with the same thickness, which can simplify the manufacturing process.

[0038] Specifically, the identified structure setting structure 1 is provided with a ball setting hole 12, and an NDI ball is provided on a connecting column 13, and the connecting column 13 is arranged in the ball setting hole 12. The NDI ball is not shown in the figure.

[0039] More preferably, the angle adjustment structure includes a pipe-shaped structure 32, and the pipe-shaped structure 32 is provided with a protruding structure 321 on the side. The bottom of the pipe-shaped structure 32 is provided with a plurality of arc-shaped locking openings 322, and the connecting rod 31 is provided with a locking rod 311 that is perpendicular to the connecting rod 31 and can enter the arc-shaped locking opening 322 to lock the angle. The locking rod 311 is symmetrically arranged on both sides of the connecting rod 31, and further includes a rotation adjustment structure, which includes a threaded rod 331 and a rotation knob 332. The connecting rod 31 is provided with a threaded pipe, and the threaded rod 331 is matched with the threaded pipe, and the connecting rod 31 extends into the pipe-shaped structure 32. When the locking rod 311 starts to enter the arc-shaped locking opening 322, the threaded rod 331 is rotated by rotating the rotation knob 332, which gradually causes the connecting rod 31 to enter the pipe-shaped structure 32, so that the locking rod 311 and the arc-shaped locking opening 322 are in close contact to lock the angle. Reverse rotation causes the locking rod 311 and the arc-shaped locking opening 322 to separate, so that the connecting rod 31 and the pipe-shaped structure 32 rotate relative to each other, and the angle is adjusted.

[0040] In use, the connecting part is first clamped or fixed to the position of the spinous process, then the connecting rod 31 is arranged on the connecting part, then the pipe-shaped structure 32 of the angle adjustment structure is arranged on the connecting part, then the rotation adjustment structure is inserted, the locking rod 311 on the connecting rod 31 is controlled to enter the arc-shaped locking opening 322, the rotation knob 332 is rotated to lock the positional relationship between the connecting rod 31 and the pipe-shaped structure 32, and then the extension rod 2 and the protruding structure 321 are combined and fixed. When the angle of the identified structure setting structure 1 blocks the surgical operation, the locking rod 311 and the arc-shaped locking opening 322 are unlocked for rotation adjustment, and the position is locked after the appropriate position is adjusted.

[0041] The technical solutions in the embodiments of the present application are clearly and completely described above through specific specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present application. The present application can also be implemented or applied through other different specific embodiments. In the case of no conflict, the above embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

Claims

1. A patient reference frame for spinal surgery, comprising The identified structure is arranged on the structure, and the identified structure is arranged on the structure; characterized in that, Further comprising, an extension rod fixedly connected with the identified structure setting structure; an angle adjustment part comprising a connecting rod connected with the connecting part and an angle adjustment structure; the extension rod is fixedly connected with the angle adjustment structure, and the angle adjustment structure rotates relative to the connecting rod, and simultaneously drives the extension rod and the identified structure setting structure connected with the angle adjustment structure to rotate around the connecting rod.

2. The patient reference frame for spinal surgery of claim 1, wherein, The angle adjustment structure is arranged perpendicularly to the extension rod, or the extension rod extends obliquely away from the connecting part; The identified structure is a plurality of NDI beads recognized by a navigation system.

3. The patient reference frame for spinal surgery of claim 2, wherein, The overall length of the extension rod is longer than that of the angle adjustment part. Preferably, the overall length of the angle adjustment part is 3-6 cm, and the length of the extension rod is 8-15 cm.

4. The patient reference frame for spinal surgery of claim 2, wherein, The identified structure setting structure is an irregular polygon structure with a hollow middle, and the NDI beads are arranged at the vertex positions of the polygon structure.

5. The patient reference frame for spinal surgery of claim 2, wherein, The identified structure setting structure comprises an irregular polygon structure with a hollow middle, and an extension part extends outward from the vertex position of the irregular polygon structure, and the NDI beads are arranged at the edge positions of each extension part. Preferably, the extension rod is integrally connected with one extension part, and the central axes of the two are consistent.

6. The patient reference frame for spinal surgery of claim 2, wherein, A protruding structure perpendicular to the overall angle adjustment structure is arranged on the angle adjustment structure, and the protruding structure and the extension rod are combined by a screw structure.

7. The patient reference frame for spinal surgery of claim 6, wherein, A matching protrusion is arranged on the protruding structure or the extension rod, and a matching groove matched with the protrusion is arranged on the extension rod or the protruding structure, and the protrusion is arranged as a non-circular center protrusion.

8. The patient reference frame for spinal surgery of claim 7, wherein: The protruding structure is arranged as a rectangle, and is arranged at the edge of the protruding structure.

9. A patient reference frame for spinal surgery as claimed in any one of claims 2 to 8, wherein: The extension rod and the identified structure setting structure are plates with equal thickness.

10. A patient reference frame for spinal surgery according to any one of claims 2-8, characterized in that: The angle adjustment structure comprises a pipe-shaped structure; a plurality of arc-shaped locking openings are arranged at the bottom of the pipe-shaped structure, a locking rod perpendicular to the connecting rod and capable of entering the arc-shaped locking opening to lock the angle is arranged on the connecting rod; the locking rod is symmetrically arranged on both sides of the connecting rod, and further comprises a rotation adjusting structure, the rotation adjusting structure comprises a threaded rod and a rotation knob; a threaded pipe is arranged on the connecting rod, the threaded rod is matched with the threaded pipe, and the connecting rod extends into the pipe-shaped structure; when the locking rod starts to enter the arc-shaped locking opening, the rotation knob is turned to drive the threaded rod to rotate, which promotes the connecting rod to gradually enter the pipe-shaped structure, so that the locking rod and the arc-shaped locking opening are in close contact to lock the angle, and reverse rotation makes the locking rod and the arc-shaped locking opening separate, so that the connecting rod and the pipe-shaped structure rotate relatively to realize angle adjustment.

Images