CN209984289U - Spinal navigation plate - Google Patents
Spinal navigation plate Download PDFInfo
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- CN209984289U CN209984289U CN201920301796.2U CN201920301796U CN209984289U CN 209984289 U CN209984289 U CN 209984289U CN 201920301796 U CN201920301796 U CN 201920301796U CN 209984289 U CN209984289 U CN 209984289U
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Abstract
The utility model discloses a backbone navigation board, include: the connecting frame, the positioning surface whose surface is matched with peripheral environmental tissues, bone and/or cortical curved surfaces at the spinal focus, and the positioning column group for determining the needle inserting direction and angle of the Kirschner wire; the positioning column group comprises a first positioning column and a second positioning column which are connected through a connecting frame, the first positioning column and the second positioning column are arranged at intervals, and the central axes of the first positioning column and the second positioning column are on the same straight line; the second positioning column is integrated with the positioning surface, the center positions of the first positioning column and the second positioning column are respectively provided with a needle inlet hole for the Kirschner wire to pass through, and the needle inlet hole penetrates through the first positioning column, the second positioning column and the positioning surface. According to the spine navigation plate, the clearance between the first positioning column and the second positioning column can accommodate soft tissues such as skin, even if the soft tissues are shielded, the Kirschner wire can pass through the soft tissues along the first positioning column and then reach the optimal needle inserting position along the second positioning column, the positioning is accurate, the operation is simple and easy, and the operation is convenient.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a backbone navigation board.
Background
The pedicle screw fixing technology is widely applied to orthopedic spine deformity correction surgery, but once nail placement deviation occurs, the consequence is very serious because the pedicle is adjacent to important tissues such as spinal cord, nerve root, esophagus, left atrium, blood vessel, pleura, lung, thoracic duct and the like. Especially for patients with spinal deformity, the shape of the pedicle and the adjacent tissues are changed significantly on the anatomical structure due to the deformity of the spinal structure, and the pedicle of each vertebral body on the concave-convex side is different, so that the risk of conventional transpedicular nail placement is very high.
At present, most orthopedic doctors in China adopt a pedicle screw embedding method under intraoperative perspective guidance, but the method has strong dependence on clinical experience of doctors and large uncontrollable factors, and in addition, the pedicle of a patient is seriously deformed, and whether the position of the screw is proper or not is difficult to determine by means of perspective.
In addition, there is a method in the related art to improve the positioning accuracy of pedicle screw placement by using a pedicle navigation plate, but the pedicle navigation plate has the following defects: when the skin is opened, the navigation plate with a larger angle cannot be placed into the surgical site, and even if the navigation plate is barely placed into the surgical site, the needle insertion channel is easily blocked by soft tissues (such as skin), so that the Kirschner wire cannot smoothly enter the optimal needle insertion point of the pedicle of vertebral arch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a location is accurate, the simple and easy spinal navigation board of operation.
To achieve the purpose, the utility model adopts the following technical proposal:
a spinal navigation pad, comprising: the connecting frame, the positioning surface whose surface is inosculated with the peripheral environment tissue, bone and cortical curved surface of the spinal focus, and the positioning column group for determining the inserting needle direction and angle of the Kirschner wire;
the positioning column group comprises a first positioning column and a second positioning column which are connected through the connecting frame, the first positioning column and the second positioning column are arranged at intervals, and the central axes of the first positioning column and the second positioning column are on the same straight line; the second positioning column is integrated with the positioning surface, the center positions of the first positioning column and the second positioning column are respectively provided with a needle inlet hole for the kirschner wire to pass through, and the needle inlet hole penetrates through the first positioning column, the second positioning column and the positioning surface.
In one embodiment, the connecting frame is in a V-shaped structure, and two ends of the connecting frame are respectively connected with the side wall of the first positioning column and the side wall of the second positioning column.
In one embodiment, the number of the positioning surfaces and the positioning column sets is two, the second positioning column in each positioning column set is correspondingly integrated with one positioning surface, and the two positioning surfaces are connected through the connecting frame.
In one embodiment, the connecting frame comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod, wherein the first connecting rod and the second connecting rod are connected through the third connecting rod, the fourth connecting rod is connected with the first connecting column, and the fifth connecting rod is connected with the second connecting column;
the first connecting rod and the fourth connecting rod are respectively connected with the first positioning column and the second positioning column in one of the positioning column groups, and the second connecting rod and the fifth connecting rod are respectively connected with the first positioning column and the second positioning column in the other positioning column group.
In one embodiment, the first connecting rod, the second connecting rod and the third connecting rod are connected to form a U-shaped structure; the fourth connecting rod is connected with the first connecting rod to form a V-shaped structure, and the fifth connecting rod is connected with the first connecting rod to form a V-shaped structure.
In one embodiment, the spine navigation plate further includes a third positioning column, the third positioning column is disposed on the connecting frame, a needle insertion hole for the kirschner wire to pass through is disposed at a center of the third positioning column, and the needle insertion hole penetrates through the third positioning column and the connecting frame.
In one embodiment, the third positioning column is disposed on the first connecting rod and/or the second connecting rod.
In one embodiment, the third positioning column is a tubular column, and the diameter of the third positioning column is 4 mm.
In one embodiment, the length of the first positioning column is greater than the length of the second positioning column.
In one embodiment, the first positioning column and the second positioning column are both tubular columns, and both have a diameter of 4 mm.
The utility model discloses following beneficial effect has at least:
above-mentioned backbone navigation board, the surface of its locating surface and the all ring edge border tissue of backbone focus department, bone and/or cortex curved surface are identical, the needle inserting direction and the angle of ke shi needle can be confirmed to the locating column group, the locating column group includes first locating column and second locating column, the second locating column is integrative with the locating surface, make first locating column and second locating column interval set up and the central axis between them on same straight line through the design, thereby soft tissues such as skin can be held in the clearance between first locating column and the second locating column, even under the condition that soft tissues such as skin sheltered from, ke shi needle also can pass the soft tissues along first locating column and reach best needle inserting position along the second locating column again, the location is accurate, the operation is simple and easy, and convenient operation.
Drawings
FIG. 1 is a schematic structural diagram of a spinal navigation plate according to an embodiment;
FIG. 2 is a schematic view of the spinal navigation plate of FIG. 1 at another angle;
FIG. 3 is a schematic structural diagram of a spinal navigation plate according to another embodiment;
the reference numbers illustrate:
the needle inserting device comprises a connecting frame 10, a first connecting rod 11, a second connecting rod 12, a third connecting rod 13, a fourth connecting rod 14, a fifth connecting rod 15, a positioning column group 20, a first positioning column 21, a second positioning column 22, a positioning surface 30, a needle inserting hole 40 and a third positioning column 50.
Detailed Description
It should be noted that when a portion is referred to as being "secured to" another portion, it can be directly on the other portion or there can be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a spinal navigation plate of an embodiment includes: the connecting frame 10, a positioning surface 30 whose surface is matched with the peripheral environment tissue, bone and/or cortical curved surface at the spinal focus, and a positioning column group 20 for determining the needle inserting direction and angle of the Kirschner wire. The positioning column group 20 comprises a first positioning column 21 and a second positioning column 22 which are connected through the connecting frame 10, wherein the first positioning column 21 and the second positioning column 22 are arranged at intervals, and the central axes of the first positioning column 21 and the second positioning column 22 are on the same straight line; the second positioning column 22 is integrated with the positioning surface 30, the center positions of the first positioning column 21 and the second positioning column 22 are both provided with needle insertion holes 40 through which the kirschner wire can pass, and the needle insertion holes 40 penetrate through the first positioning column 21, the second positioning column 22 and the positioning surface 30.
The connecting frame 10 is a main basic component of the whole spinal navigation plate and is used for connecting various components, and the various components are reasonably arranged on the connecting frame 10, so that the whole structure is compact. The connecting frame 10 may be a V-shaped structure, and two ends of the connecting frame 10 are respectively connected to a side wall of the first positioning column 21 and a side wall of the second positioning column 22. Specifically, the link 10 includes two interconnect's connecting rod, and is certain contained angle between two connecting rods, and the first end of two connecting rods is connected, and the lateral wall of first reference column 21 and the lateral wall of second reference column 22 are connected respectively to the second end of two connecting rods.
The first positioning column 21 and the second positioning column 22 are matched to quickly and simply determine the direction and the angle of the Kirschner wire, and even under the condition that soft tissues such as skin are shielded, the Kirschner wire can pass through the soft tissues along the first positioning column 21 and then reach the optimal needle inserting position along the second positioning column 22. In one embodiment, the first positioning column 21 and the second positioning column 22 are both tubular columns, and both have a diameter of 4 mm. It can be understood that the length and the diameter of all reference columns can be adjusted according to actual conditions, the utility model discloses do not do the restriction to this. For example, the length of the first positioning pillar 21 may be designed to be greater than the length of the second positioning pillar 22, and the length of the second positioning pillar 22 may be designed to be slightly smaller, so as to reduce the occupied space.
The central axes of the needle inlet 40, the first positioning column 21 and the second positioning column 22 are overlapped. The needle inserting holes 40 of the first positioning column 21 and the second positioning column 22 are cylindrical holes, and the hole diameter is slightly larger than the diameter of the Kirschner wire so that the Kirschner wire can pass through the holes. Specifically, the needle inserting hole 40 of the first positioning column 21 of one positioning column set 20 penetrates through the first positioning column 21, and the needle inserting hole 40 of the second positioning column 22 penetrates through the second positioning column 22 and the positioning surface 30 integrated therewith; the needle inserting hole 40 of the first positioning column 21 of the other positioning column set 20 penetrates through the first positioning column 21, and the needle inserting hole 40 of the second positioning column 22 penetrates through the second positioning column 22 and the positioning surface 30 integrated therewith.
In the embodiment shown in fig. 1, the number of the positioning planes 30 and the positioning column sets 20 is two, the second positioning column 22 in each positioning column set 20 is correspondingly integrated with one positioning plane 30, and the two positioning planes 30 are connected through the connecting frame 10. By designing the bilateral positioning surface 30 and the double positioning column group 20, the attaching surface of the navigation plate and the spine is increased, the stability is stronger, and the looseness (sliding) is not easy to occur.
Referring to fig. 1 and 2, the connection frame 10 includes a first connection rod 11, a second connection rod 12, a third connection rod 13, a fourth connection rod 14 and a fifth connection rod 15, the first connection rod 11 and the second connection rod 12 are connected through the third connection rod 13, the fourth connection rod 14 is connected to the first connection column, and the fifth connection rod 15 is connected to the second connection column; the first connecting rod 11 and the fourth connecting rod 14 are respectively connected with a first positioning column 21 and a second positioning column 22 in one positioning column group 20, and the second connecting rod 12 and the fifth connecting rod 15 are respectively connected with the first positioning column 21 and the second positioning column 22 in the other positioning column group 20.
Specifically, a first connecting rod 11, a second connecting rod 12 and a third connecting rod 13 are connected to form a U-shaped structure; the fourth connecting rod 14 is connected with the first connecting rod 11 to form a V-shaped structure, and the fifth connecting rod 15 is connected with the first connecting rod 11 to form a V-shaped structure.
Referring to fig. 3, in other embodiments, the spinal navigation plate further includes a third positioning column 50, the third positioning column 50 is disposed on the connecting frame 10, a needle inlet hole 40 for passing the k-wire is disposed at a center position of the third positioning column 50, and the needle inlet hole 40 penetrates through the third positioning column 50 and the connecting frame 10. The third positioning column 50 is designed to enable the spinal navigation plate to be better fixed on the spinal column, and the spinal navigation plate cannot fall off or shift even if the hands of an operator are taken away. Preferably, the three needle inserting directions of the third positioning column 50 and the two positioning column sets 20 are different, so as to better perform the fixing function.
Specifically, the number of the third positioning pillars 50 may be multiple, and the third positioning pillars 50 may be disposed on the first connecting rod 11 and/or the second connecting rod 12. That is, the third positioning column 50 may be provided on either the first connecting rod 11 or the second connecting rod 12, or the third positioning columns 50 may be provided on the first connecting rod 11 and the second connecting rod 12, respectively.
The third positioning column 50 is a tubular column, and the diameter thereof is 4 mm. It can be understood that the length and diameter of the third positioning column 50 can be adjusted according to actual requirements, and the present invention is not limited thereto. The needle inlet hole 40 of the third positioning column 50 is a cylindrical hole, and the aperture size is slightly larger than the diameter size of the kirschner wire, so that the kirschner wire can pass through the hole. When the third positioning column 50 is disposed on the first connecting rod 11, the needle inlet 40 of the third positioning column 50 penetrates through the third positioning column 50 and the first connecting rod 11; when the third positioning pillar 50 is disposed on the second connecting rod 12, the pin inlet 40 of the third positioning pillar 50 penetrates through the third positioning pillar 50 and the second connecting rod 12.
The manufacturing method of the spine navigation plate of one embodiment comprises the following steps:
1) highly reducing the patient vertebral model of the patient: importing CT (computed tomography) results of a patient into a Mimics Research 20.0 software, establishing a mask, selecting a bone threshold (220-data threshold maximization), filling holes, reconstructing a high-precision three-dimensional model, a smooth model, a skin model and exporting to 3-Matic 12.0;
2) newly building two cylindrical simulation kirschner wires at 3-matic12.0, simulating the optimal position of the kirschner wires entering the vertebral pedicle, adjusting the vertebral body to be a transparent view, and observing whether the simulation kirschner wires entering the vertebral pedicle position can influence peripheral nerves of the vertebra;
3) selecting the surface around the optimal pedicle of vertebral arch needle insertion point, and drawing a mold for 3mm to generate a positioning surface 30 fitting the articular process, the transverse process and the pedicle of vertebral arch;
4) on the basis of the central point of the simulated Kirschner wire cylinder, creating a cylindrical positioning column with the length of 10mm and the diameter of 4mm, and moving to a specified position; and a positioning column with the length of 30mm is created and moved to the surface of the skin.
5) Establishing a sketch by using a sketch command, manufacturing a connecting rod line, and generating a connecting rod with the diameter of 10mm by using a pipeline command;
6) using a Boolean tool to sum the positioning surface 30, the connecting rod and the positioning column together to form a whole, and subtracting the simulated Kirschner wire from the whole to obtain a final result;
7) in order to ensure that the positioning surface 30 can be accurately attached to the vertebral bone structure, a Boolean tool is used to subtract the vertebral model from the final result;
8) the spine navigation board is finished and saved as files in file formats such as stl, stp, obj, max, 3ds, ma, vtk, igs and the like for transmission, storage, browsing, inspection, modification and processing production;
9) carrying out appropriate surface treatment on the physical model according to the 3D printing effect to meet the use requirement;
10) and (3) verification: and 3D printing is carried out on the spine and the positioning guide plate model, the spine and the positioning guide plate model are matched and verified, the spine and the positioning guide plate model are measured and compared with a designed prototype, and whether the spine and the positioning guide plate model meet the requirements before design is checked.
The manufacturing method of the spine navigation plate simulates the matching process, perfects and optimizes the design scheme, the model and the product appearance design, carries out model surface treatment, realizes individuation, and meets the requirements of physiological structures, anatomical structures, motion mechanics and biomechanics.
The spine navigation plate at least has the following advantages:
(1) the surface of the positioning surface 30 is matched with the surrounding environment tissue, bone and/or cortical curved surface at the spinal focus, the positioning column group 20 can determine the needle inserting direction and angle of the Kirschner wire, the positioning column group 20 comprises a first positioning column 21 and a second positioning column 22, by designing the second positioning column 22 to be integrated with the positioning surface 30, and arranging the first positioning column 21 and the second positioning column 22 at intervals with the central axes thereof on the same straight line, so that the gap between the first positioning post 21 and the second positioning post 22 can accommodate soft tissues such as skin, even under the condition that soft tissues such as skin and the like are shielded, the Kirschner wire can pass through the soft tissues along the first positioning column 21 and then reach the optimal needle inserting position along the second positioning column 22, the positioning is accurate, the operation is simple, the optimal needle inserting position and the optimal needle inserting direction of the Kirschner wire can be found without perspective, and the operation is convenient;
(2) by designing the bilateral positioning surface 30 and the double positioning column group 20, the stability is enhanced and the sliding is not easy to occur;
(3) the safety is reliable, and the risk of puncturing the vascular nerve does not exist;
(4) the problem that the optimal needle inserting point of the vertebral pedicle cannot be positioned due to the fact that an opening in the operation is small and a spinal navigation plate cannot be placed in the operation is solved;
(5) has wide application range of focus.
To sum up, the utility model discloses a backbone navigation board can coincide completely with regional three-dimensional physique structure of focus, operation route, tissue environment etc. and positioning accuracy is high, physiological characteristic is good, to human safety, easily uses widely by a large scale, can satisfy the surgery operation needs, fills the relevant technical blank, can produce great social and economic benefits again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A spinal navigation pad, comprising: the device comprises a connecting frame (10), a positioning surface (30) the surface of which is inosculated with the peripheral environment tissue, bone and/or cortical curved surface at the spinal focus, and a positioning column group (20) for determining the needle inserting direction and angle of the Kirschner wire;
the positioning column group (20) comprises a first positioning column (21) and a second positioning column (22) which are connected through the connecting frame (10), the first positioning column (21) and the second positioning column (22) are arranged at intervals, and the central axes of the first positioning column and the second positioning column are on the same straight line; the second positioning column (22) is integrated with the positioning surface (30), the center positions of the first positioning column (21) and the second positioning column (22) are respectively provided with a needle feeding hole (40) for the kirschner wire to pass through, and the needle feeding hole (40) penetrates through the first positioning column (21), the second positioning column (22) and the positioning surface (30).
2. The spinal navigation plate of claim 1, wherein the connecting frame (10) is a V-shaped structure, and two ends of the connecting frame (10) are respectively connected with a side wall of the first positioning column (21) and a side wall of the second positioning column (22).
3. The spinal navigation plate according to claim 1, characterized in that the number of the positioning planes (30) and the positioning column sets (20) is two, the second positioning column (22) in each positioning column set (20) is correspondingly integrated with one positioning plane (30), and the two positioning planes (30) are connected through the connecting frame (10).
4. The spinal navigation plate of claim 3, wherein the connection frame (10) comprises a first connection rod (11), a second connection rod (12), a third connection rod (13), a fourth connection rod (14) and a fifth connection rod (15), the first connection rod (11) and the second connection rod (12) are connected through the third connection rod (13), the fourth connection rod (14) is connected with the first connection column, and the fifth connection rod (15) is connected with the second connection column;
the first connecting rod (11) and the fourth connecting rod (14) are respectively connected with the first positioning column (21) and the second positioning column (22) in one positioning column group (20), and the second connecting rod (12) and the fifth connecting rod (15) are respectively connected with the first positioning column (21) and the second positioning column (22) in the other positioning column group (20).
5. The spinal navigation plate according to claim 4, characterized in that said first connecting rod (11), said second connecting rod (12) and said third connecting rod (13) are connected to form a U-shaped structure; the fourth connecting rod (14) is connected with the first connecting rod (11) to form a V-shaped structure, and the fifth connecting rod (15) is connected with the first connecting rod (11) to form a V-shaped structure.
6. The spinal navigation plate according to claim 4 or 5, further comprising a third positioning column (50), wherein the third positioning column (50) is disposed on the connecting frame (10), a needle insertion hole (40) for the kirschner wire to pass through is disposed at a center position of the third positioning column (50), and the needle insertion hole (40) penetrates through the third positioning column (50) and the connecting frame (10).
7. The spinal navigation plate according to claim 6, characterized in that said third positioning columns (50) are arranged on said first connecting rod (11) and/or said second connecting rod (12).
8. The spinal navigation plate according to claim 6, characterized in that said third positioning posts (50) are tubular posts and have a diameter of 4 mm.
9. A spinal navigation plate as claimed in claim 1, characterized in that the length of the first positioning column (21) is greater than the length of the second positioning column (22).
10. The spinal navigation plate according to claim 1, characterized in that said first positioning post (21) and said second positioning post (22) are both tubular posts and both have a diameter of 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301796.2U CN209984289U (en) | 2019-03-11 | 2019-03-11 | Spinal navigation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301796.2U CN209984289U (en) | 2019-03-11 | 2019-03-11 | Spinal navigation plate |
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| CN209984289U true CN209984289U (en) | 2020-01-24 |
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| CN201920301796.2U Active CN209984289U (en) | 2019-03-11 | 2019-03-11 | Spinal navigation plate |
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- 2019-03-11 CN CN201920301796.2U patent/CN209984289U/en active Active
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