Calibration device for high-position osteotomy

Abstract

The utility model discloses a calibration device for high-position osteotomy, which comprises a mechanical arm, and the tail end of the mechanical arm is sequentially connected with a mounting seat, an insulating component, a mounting component and a calibration ruler; the calibration ruler comprises an extension rod connected with the mounting assembly and a marking tool connected with the extension rod, the marking tool is of a hollow three-dimensional structure and is provided with two calibration surfaces parallel to each other, the calibration surfaces are parallel to the axis of the extension rod, and a plurality of steel balls are fixedly arranged on the two calibration surfaces respectively; by means of the precise mechanical arm assistance and the image technology, precise planning before an operation and precise execution in the operation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical machinery, in particular to a calibration device for high-position osteotomy. Background Art

[0002] In orthopedic surgery, high osteotomy is a common treatment method used to correct leg deformities or treat certain joint diseases. The accuracy of the surgery is crucial to the patient's postoperative recovery. Traditional high osteotomy surgery relies on the doctor's experience and intuition, which may lead to inconsistent surgical results and a high error rate.

[0003] In terms of imaging technology, C-arm X-ray machines are an important medical device that is widely used in surgeries in orthopedics, surgery and other departments. C-arm X-ray machines can provide real-time imaging information of patients, helping doctors to accurately locate the target area during surgery. However, simple two-dimensional images often cannot meet the needs of complex surgeries, and doctors need more three-dimensional information to assist in decision-making.

[0004] Therefore, how to design surgical tools to combine with C-arm X-ray machines to generate more accurate three-dimensional data and provide doctors with more intuitive and concrete surgical planning information remains a technical challenge. Summary of the invention

[0005] The purpose of the utility model is to provide a calibration device for high-position osteotomy in view of the problems existing in the prior art, which can realize accurate planning before surgery and accurate execution during surgery through accurate mechanical arm assistance and imaging technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A calibration device for high-position osteotomy comprises: a mechanical arm, the end of which is sequentially connected to a mounting seat, an insulating component, a mounting component and a calibration ruler; the calibration ruler comprises an extension rod connected to the mounting component, and a marking tool connected to the extension rod, the marking tool being a hollow three-dimensional structure, the marking tool being provided with two mutually parallel calibration surfaces, and the calibration surfaces are parallel to the axis of the extension rod, and a plurality of steel balls are respectively fixed on the two calibration surfaces.

[0008] The outer wall of the calibration surface is provided with a plurality of embedding grooves, and the steel balls are half-embedded and fixed in the corresponding embedding grooves.

[0009] The plurality of steel balls are arranged in a star-shaped divergent structure on the outer wall of the calibration surface, and the orthographic projections of the steel balls on the two calibration surfaces overlap with each other.

[0010] The mounting assembly includes a mounting sleeve, a first end of the mounting sleeve is provided with a slot with a triangular cross-section, the end of the extension rod is provided with an insertion rod that is plugged into the slot, and an outer wall of the mounting sleeve is provided with a threaded hole connected to the slot, and the threaded hole is connected to a locking bolt.

[0011] The mounting assembly includes a mounting plate vertically connected to the second end of the mounting sleeve, the mounting plate is provided with a knob lock, the insulating assembly is provided with a lock hole that cooperates with the knob lock, and the mounting plate is detachably connected to the insulating assembly through the knob lock.

[0012] The extension rod is provided with a hollow inner cavity, and the outer wall of the extension rod is provided with a weight-reducing groove which is communicated with the hollow inner cavity.

[0013] The mounting assembly is connected to a robotic arm tracer.

[0014] The high-position osteotomy device also includes a trolley, which is provided with a mechanical arm receiving seat, and the mechanical arm is detachably mounted on the mechanical arm receiving seat.

[0015] The trolley is provided with a trolley tracer.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. By assembling multiple steel balls on the marker and using a C-arm X-ray machine, the projection of the steel balls can be clearly displayed in the X-ray image. The C-arm X-ray machine takes the anteroposterior and lateral image data and combines them with the surgical planning software to synthesize them into three-dimensional data. Doctors can plan the surgical channel based on these precise data, thereby greatly improving the accuracy of the surgery;

[0018] 2. The hollow three-dimensional structure design of the marker helps to reduce weight while maintaining sufficient strength and stability. The steel balls on the calibration surface are arranged in a star-shaped divergent structure, and the orthographic projections of the steel balls on the two calibration surfaces overlap with each other, which enhances the accuracy and recognition of positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a calibration device in one embodiment of the present application;

[0020] Figure 2 This is a connection structure diagram of a mounting base, an insulating component, a mounting component, and a calibration ruler in one embodiment of the present application;

[0021] Figure 3 This is a disassembled structural diagram of a mounting base, an insulating component, a mounting component, and a calibration ruler in one embodiment of the present application;

[0022] Figure 4This is a disassembled structural diagram of an installation component in an embodiment of the present application;

[0023] In the figure: 1. Robotic arm; 2. Mounting seat; 3. Insulation assembly; 4. Mounting assembly; 5. Calibration ruler; 6. Extension rod; 7. Marking tool; 701, Calibration surface; 8. Steel ball; 9. Mounting sleeve; 10. Mounting plate; 11. Slot; 12. Insert rod; 13. Knob lock; 14. Robotic arm tracer; 15. Trolley; 16. Robotic arm receiving seat; 17. Trolley tracer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 4As shown, a calibration device for high-position osteotomy comprises: a robotic arm 1, the end of which is sequentially connected with a mounting seat 2, an insulating component 3, a mounting component 4 and a calibration ruler 5; the calibration ruler 5 comprises an extension rod 6 connected with the mounting component 4, and a marking tool 7 connected with the extension rod 6, the marking tool 7 is a hollow three-dimensional structure, the marking tool 7 is provided with two calibration surfaces 701 parallel to each other, and the calibration surfaces 701 are parallel to the axis of the extension rod 6, and a plurality of steel balls 8 are respectively fixed on the two calibration surfaces 701.

[0029] The calibration ruler 5 is mounted on the end of the robotic arm 1, and a plurality of steel balls 8 are mounted on the marking device 7. The patient's affected part is photographed in the anteroposterior and lateral positions by a C-arm X-ray machine to obtain two sets of different image data, and the projection of the steel balls 8 under the X-ray can be clearly displayed on the image; the surgical planning software synthesizes the anteroposterior and lateral two-dimensional image data into three-dimensional data, and the doctor plans the surgical channel according to the synthesized three-dimensional data, thereby providing accurate surgical guidance, realizing precise planning before surgery and precise execution during surgery, thereby improving the quality and safety of the surgery.

[0030] The calibration ruler 5 is composed of an extension rod 6 and a marking device 7. The hollow three-dimensional structure design of the marking device 7 helps to reduce weight while maintaining sufficient strength and stability.

[0031] The multiple steel balls 8 on the calibration surface are fixedly arranged and serve as visible marks in the X-ray image to help determine the specific position of the osteotomy. The two parallel calibration surfaces 701 on the marker 7 are parallel to the axis of the extension rod 6. This design allows the steel balls 8 on the two calibration surfaces to form coplanar projections on the X-ray image, providing a more stable reference, thereby enhancing the accuracy of the overall calibration.

[0032] By using a C-arm X-ray machine to take anteroposterior and lateral photos from different angles, two sets of two-dimensional projection data of the steel balls can be obtained. By combining these two sets of data, the image algorithm can be used to reconstruct the exact position of the steel balls in three-dimensional space. After determining the position of the steel balls in three-dimensional space, the doctor can use these data to plan the path and depth of the osteotomy surgery to ensure the accuracy and safety of the surgery.

[0033] In some embodiments, the outer wall of the calibration surface 701 is provided with a plurality of embedding grooves, and the steel ball 8 is half-embedded and fixed in the corresponding embedding grooves. Preferably, the steel ball is half-embedded in the embedding groove and firmly connected with glue to ensure that the steel ball will not shift or fall off during the operation.

[0034] In some embodiments, multiple steel balls 8 are arranged in a star-shaped divergent structure on the outer wall of the calibration surface 701, and the orthographic projections of the steel balls 8 on the two calibration surfaces 701 overlap with each other. Through the star-shaped divergent layout, the steel balls provide multiple reference points in different directions, which helps to accurately locate from different angles; by designing that the orthographic projections of the two layers of steel balls 8 overlap with each other, the steel ball recognition can be improved, making the positioning more accurate.

[0035] In some embodiments, the mounting assembly 4 includes a mounting sleeve 9, a slot 11 having a triangular cross section is provided at the first end of the mounting sleeve 9, an insertion rod 12 that is plugged into and fits with the slot 11 is provided at the end of the extension rod 6, and a threaded hole that communicates with the slot 11 is provided on the outer wall of the mounting sleeve 9, and a locking bolt is connected to the threaded hole. In the surgical preparation stage, the insertion rod 12 of the extension rod 6 is inserted into the triangular slot 11 of the mounting sleeve 9, and the insertion rod 12 can be tightened by screwing the locking bolt into the threaded hole, thereby firmly fixing it in the mounting sleeve 9; the triangular shape design of the insertion rod 12 facilitates the angular positioning of the extension rod 6.

[0036] In some embodiments, the mounting assembly 4 includes a mounting plate 10 vertically connected to the second end of the mounting sleeve 9, the mounting plate 10 is provided with a knob lock 13, the insulating assembly 3 is provided with a lock hole that cooperates with the knob lock, and the mounting plate 10 is detachably connected to the insulating assembly 3 through the knob lock. The mounting plate 10 is aligned with the lock hole on the insulating assembly 3 by the knob lock 13 and tightened to achieve fixation. By tightening the knob lock, the mounting plate 10 is stably connected to the insulating assembly 3, thereby ensuring the stability and safety of the entire calibration device; after the operation is completed, the knob lock is loosened, and the mounting plate 10 is removed from the insulating assembly 3 for easy cleaning and disinfection.

[0037] In some embodiments, the extension rod 6 is provided with a hollow inner cavity, and the outer wall of the extension rod 6 is provided with a weight-reducing groove communicating with the hollow inner cavity. The design of the hollow inner cavity and the weight-reducing groove reduces the use of materials while maintaining the overall strength of the structure.

[0038] In some embodiments, the mounting assembly 4 is connected to a robot arm tracer 14. The navigation system can track the position and direction of the robot arm tracer 14 in real time, thereby monitoring the precise position of the calibration scale at the end of the robot arm.

[0039] In some embodiments, the high-position osteotomy device further comprises a trolley 15 , the trolley 15 is provided with a robotic arm receiving seat 16 , and the robotic arm 1 can be detachably mounted on the robotic arm receiving seat 16 .

[0040] In some embodiments, the trolley 15 is provided with a trolley tracer 17 .

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calibration device for high osteotomy, characterized in that: include: A mechanical arm (1), wherein the end of the mechanical arm (1) is sequentially connected to a mounting seat (2), an insulating component (3), a mounting component (4) and a calibration ruler (5); The calibration ruler (5) comprises an extension rod (6) connected to the mounting assembly (4), and a marking tool (7) connected to the extension rod (6); the marking tool (7) is a hollow three-dimensional structure; the marking tool (7) is provided with two mutually parallel calibration surfaces (701), and the calibration surfaces (701) are parallel to the axis of the extension rod (6); and a plurality of steel balls (8) are fixedly provided on the two calibration surfaces (701), respectively.

2. A calibration device for high osteotomy according to claim 1, characterized in that: The outer wall of the calibration surface (701) is provided with a plurality of embedding grooves, and the steel balls (8) are half-embedded and fixed in the corresponding embedding grooves.

3. A calibration device for high osteotomy according to claim 1, characterized in that: The plurality of steel balls (8) are arranged in a star-shaped divergent structure on the outer wall of the calibration surface (701), and the orthographic projections of the steel balls (8) on the two calibration surfaces (701) overlap with each other.

4. A calibration device for high osteotomy according to claim 1, characterized in that: The mounting assembly (4) comprises a mounting sleeve (9), a first end of the mounting sleeve (9) being provided with a slot (11) having a triangular cross-section, an end of the extension rod (6) being provided with an insertion rod (12) pluggable with the slot (11), an outer wall of the mounting sleeve (9) being provided with a threaded hole communicating with the slot (11), and a locking bolt being connected to the threaded hole.

5. A high-position osteotomy calibration device according to claim 4, characterized in that: The mounting assembly (4) comprises a mounting plate (10) vertically connected to the second end of the mounting sleeve (9), the mounting plate (10) is provided with a knob lock (13), the insulating assembly (3) is provided with a lock hole matched with the knob lock, and the mounting plate (10) is detachably connected to the insulating assembly (3) via the knob lock.

6. A calibration device for high osteotomy according to claim 1, characterized in that: The extension rod (6) is provided with a hollow inner cavity, and the outer wall of the extension rod (6) is provided with a weight-reducing groove which is in communication with the hollow inner cavity.

7. A calibration device for high osteotomy according to claim 1, characterized in that: The mounting assembly (4) is connected to a robotic arm tracer (14).

8. The high osteotomy calibration device according to claim 1, characterized in that: The high-position osteotomy device further comprises a trolley (15), wherein the trolley (15) is provided with a mechanical arm receiving seat (16), and the mechanical arm (1) is detachably mounted on the mechanical arm receiving seat (16).

9. A calibration device for high osteotomy according to claim 8, characterized in that: The trolley (15) is provided with a trolley tracer (17).

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