Osteotomies drawing aid positioning tool

Abstract

The utility model relates to a kind of bone grinding drawing auxiliary positioning tools, belong to medical instrument technical field.The utility model's bone grinding drawing auxiliary positioning tool includes disc base and cylindrical boss, the cross section of disc base and cylindrical boss is concentric circle, is equipped with circular positioning hole in the position of circle center, and hollow passage is set between circular positioning hole and the edge of disc base.Utilize the positioning hole can position the position required to carry out bone grinding, near center hollow ring and the outer edge of disc base are bone grinding positioning edge.Using near center hollow ring and the inner and outer multilayer edge structure of disc base outer edge can carry out bone grinding drawing after positioning, draw bone grinding edge line, puncture needle can pass through hollow passage and enter the circular positioning hole in center.And using the positioning workpiece of the utility model can draw arc on multiple concentric circles, can accurately determine the distance of arc and positioning hole.And the utility model's structure is simple, application is convenient, and production and use cost are low.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to the field of bone grinding auxiliary tools, specifically a bone grinding drawing and positioning auxiliary tool. Background Technology

[0002] Deep brain stimulation (DBS) is a novel clinical therapy that combines surgical control of neurological diseases with electronic technology. It can be used to treat clinical symptoms caused by extrapyramidal diseases such as Parkinson's disease and essential tremor. DBS primarily involves stereotactic surgery to implant a deep brain stimulation system into the patient's body. Through electrical stimulation, it inhibits abnormal function of target cells, thereby improving the clinical symptoms of extrapyramidal diseases such as Parkinson's disease and essential tremor.

[0003] Deep brain stimulation (DBS) requires drilling electrode holes at specific locations on the skull, inserting the stimulation electrodes into specific brain nuclei, and then sealing and securing the electrodes using electrode locks or similar products. Therefore, drilling is a crucial step in DBS. However, currently there are no specific tools to help doctors draw the shape of the holes or determine the smoothness of the bone surface after grinding. The procedure relies entirely on the doctor's experience. This leads to a complex grinding process, resulting in irregularly shaped skull holes and uneven bone surfaces. This affects the subsequent installation of electrode locks and other components, and can even cause scalp bulges, impacting aesthetics and patient prognosis.

[0004] Therefore, how to provide a bone-grinding drawing aid that facilitates positioning has become an urgent problem to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bone grinding drawing auxiliary positioning tool that is easy to position, has a simple structure, and is convenient to use.

[0006] To achieve the above objectives, the bone grinding drawing auxiliary positioning tool of this utility model has the following structure:

[0007] The bone grinding drawing auxiliary positioning tool includes a disc base and a cylindrical boss disposed thereon. The cross-sections of the disc base and the cylindrical boss are concentric circles, and a circular positioning hole is provided at the center of the circle. A hollow channel is provided between the circular positioning hole and the edge of the disc base. A near-center hollow ring is provided on the disc base around the cylindrical boss. The near-center hollow ring and the outer edge of the disc base are both bone grinding positioning edges.

[0008] In this bone-grinding drawing auxiliary positioning tool, the near-center hollow circle is a circular hollow, and the cross-section of the circular hollow and the cylindrical boss are concentric circles.

[0009] In this bone-grinding drawing-aided positioning tool, the inner arc of the hollowed-out ring is the outer wall of the cylindrical boss, and the outer arc of the hollowed-out ring and the outer edge of the disc base form a ring-shaped base.

[0010] In this bone-grinding drawing-aided positioning tool, the width of the annular base is 0.5-2mm, the diameter of the cross-section of the disc base is 20-25mm, and the diameter of the cross-section of the cylindrical boss is 12-15mm.

[0011] In this bone-grinding drawing-aided positioning tool, the annular base and the cylindrical boss are fixed to each other by two connecting bridges set at both ends of a diameter. The connecting bridges divide the annular hollow into two parts symmetrical about the diameter.

[0012] In this bone-grinding drawing-aided positioning tool, a hollow channel is provided in one of the connecting bridges, which connects the circular positioning hole to the outer side of the annular base.

[0013] In this bone-grinding drawing-aided positioning tool, the width of the connecting bridge is 3-5mm, the width of the hollow channel is 2-3mm, and the diameter of the circular positioning hole is 3-5mm.

[0014] In this bone-grinding drawing auxiliary positioning tool, the height of the disc base is 0.5-2mm, and the cylindrical boss is 3-4mm higher than the height of the disc base.

[0015] This bone-grinding drawing aid positioning tool is made of metal or plastic in a single piece. The reusable aid positioning tool is made of metal, while the disposable aid positioning tool is made of plastic.

[0016] This utility model discloses a bone grinding drawing auxiliary positioning tool, which includes a circular base and a cylindrical boss disposed on it. The cross-sections of the circular base and the cylindrical boss are concentric circles, with a circular positioning hole at the center. A hollow channel is provided between the circular positioning hole and the edge of the circular base. This positioning hole can be used to locate the position to be ground. Simultaneously, a near-center hollow ring is provided on the base surrounding the cylindrical boss. This near-center hollow ring and the outer edge of the circular base serve as the bone grinding positioning edge. Therefore, after positioning, the bone grinding drawing can be performed using the multi-layered edge structure of the near-center hollow ring and the outer edge of the circular base, drawing the bone grinding edge line. During this process, the puncture needle can enter the central circular positioning hole through the hollow channel. Furthermore, the positioning tool of this utility model can draw multiple arcs on concentric circles centered at the positioning hole, accurately determining the distance between the arc and the positioning hole. The bottom of the circular base can be used to check whether the bone surface is flat after grinding. The cylindrical boss can be used to check whether the depth of the bone hole after bone grinding meets the standard. Furthermore, this bone grinding drawing and positioning tool has a simple structure, is easy to use, and has relatively low production and usage costs. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the bone grinding drawing auxiliary positioning tool of this utility model;

[0018] Figure 2 This is a top view structural diagram of the bone grinding drawing auxiliary positioning tool of this utility model;

[0019] Figure 3 This is a side view structural diagram of the bone grinding drawing auxiliary positioning tool of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the bone grinding drawing auxiliary positioning tool of this utility model from a bottom view.

[0021] Figure 5 This is a schematic diagram of the other side of the bone grinding drawing auxiliary positioning tool of this utility model.

[0022] Figure label:

[0023] 1. Circular base, 11. Circular base, 12. Connecting bridge, 2. Circular boss, 3. Circular positioning hole, 31. Hollowed-out channel, 4. Hollowed-out ring near the center, 41. Inner arc, 42. Outer arc. Detailed Implementation

[0024] In order to better understand the technical content of this utility model, the following embodiments are provided for detailed description.

[0025] Please see Figure 1The diagram shown is a structural schematic of the bone grinding drawing auxiliary positioning tool of this utility model.

[0026] In one implementation, the bone-grinding drawing-aided positioning tool, such as Figures 1 to 5 As shown, it includes a disc base 1 and a cylindrical boss 2 disposed on the disc base 1. The cross-sections of the disc base 1 and the cylindrical boss 2 are concentric circles. A circular positioning hole 3 is provided at the center of the circle. A hollow channel 31 is provided between the circular positioning hole 3 and the edge of the disc base 1. A near-center hollow ring 4 is provided on the disc base 1 around the cylindrical boss 2. The near-center hollow ring 4 and the outer edge of the disc base 1 are both bone-grinding positioning edges.

[0027] In a preferred embodiment, the near-central hollow ring 4 is a circular hollow ring, and the cross-section of this circular hollow ring is concentric with that of the cylindrical boss 2. The inner arc 41 of the circular hollow ring forms the outer wall of the cylindrical boss 2, and the outer arc 42 of the circular hollow ring forms a circular base 11 between it and the outer edge of the disc base 1. Furthermore, the width of the circular hollow ring and the circular base 11 can be the same.

[0028] In a further preferred embodiment, the width of the annular base 11 is 1-2 mm, preferably 1 mm, the diameter of the cross-section of the disc base 1 is 20-25 mm, preferably 22 mm, and the diameter of the cross-section of the cylindrical boss is 12-15 mm, preferably 14 mm.

[0029] In a further preferred embodiment, two connecting bridges 12 are provided between the annular base 11 and the cylindrical boss 2. The two connecting bridges 12 are respectively disposed at both ends of the diameter of a circular base 1, and the connecting bridges 12 divide the annular hollow into two symmetrical parts about the diameter. Further, one of the connecting bridges 12 is provided with a hollow channel 31, which connects the circular positioning hole 3 to the outer side of the annular base 11. The width of the connecting bridge 12 is 3-5 mm, preferably 4 mm; the width of the hollow channel 31 is 2-3 mm, preferably 2.5 mm; and the diameter of the circular positioning hole 3 is 3-5 mm.

[0030] In another preferred embodiment, the cylindrical boss is 3-4 mm higher than the disk base.

[0031] In a more preferred embodiment, the reusable bone-grinding drawing auxiliary positioning tool is made of metal, while the disposable version can be made of plastic.

[0032] It is understood that the bone grinding drawing auxiliary positioning tool of this utility model can also be made of other materials, and its size can be determined according to actual needs to form different size models.

[0033] In practical applications, when bone reshaping is required, the predetermined center position is first determined and marked. The bone reshaping drawing auxiliary positioning tool of this invention is aligned with the center position through the circular positioning hole located at the center position to position the auxiliary positioning tool. Then, the bone reshaping edge line is drawn according to actual needs using the near-center hollow ring and the outer edge of the disc base. Each line drawn in this way is an arc segment with the center position of the positioning hole as the center, and the distance between the arc and the positioning hole can be determined sequentially. In this way, the bone reshaping position is drawn accurately and conveniently. After the bone reshaping and drilling are completed, the cylindrical boss can be used to check whether the depth of the bone hole meets the standard, and the bottom of the annular base can be used to check whether the bone surface after bone reshaping is flat.

[0034] This utility model discloses a bone-grinding drawing auxiliary positioning tool, which includes a circular base and a cylindrical boss disposed on it. The cross-sections of the circular base and the cylindrical boss are concentric circles, with a circular positioning hole at the center. A hollow channel is provided between the circular positioning hole and the edge of the circular base. This positioning hole can be used to locate the position to be ground. Simultaneously, a near-center hollow ring is provided on the base surrounding the cylindrical boss. This near-center hollow ring and the outer edge of the circular base serve as the bone-grinding positioning edge. Therefore, after positioning, the bone-grinding drawing can be performed using the multi-layered edge structure of the near-center hollow ring and the outer edge of the circular base, drawing the bone-grinding edge line. During this process, the puncture needle can enter the central circular positioning hole through the hollow channel. Furthermore, the positioning tool of this utility model can draw multiple arcs on concentric circles centered at the positioning hole, accurately determining the distance between the arc and the positioning hole. After bone grinding and drilling are completed, the cylindrical boss can be used to check whether the depth of the bone hole meets the standard, and the bottom of the annular base can be used to check whether the bone surface after grinding is flat. Moreover, this bone grinding drawing and positioning tool has a simple structure, is easy to use, and has relatively low production and usage costs.

[0035] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A bone-grinding drawing-aided positioning tool, characterized in that, It includes a disc base and a cylindrical boss disposed thereon. The cross-sections of the disc base and the cylindrical boss are concentric circles. A circular positioning hole is provided at the center of the circle. A hollow channel is provided between the circular positioning hole and the edge of the disc base. A near-center hollow ring is provided on the disc base around the cylindrical boss. The near-center hollow ring and the outer edge of the disc base are both bone-grinding positioning edges.

2. The bone-grinding drawing-aided positioning tool according to claim 1, characterized in that, The near-center hollow ring is a circular hollow ring, and the cross-section of the circular hollow ring and the cylindrical boss are concentric circles.

3. The bone-grinding drawing-aided positioning tool according to claim 2, characterized in that, The inner arc of the hollowed-out ring forms the outer wall of the cylindrical boss, and the outer arc of the hollowed-out ring forms a ring-shaped base with the outer edge of the disk base.

4. The bone-grinding drawing-aided positioning tool according to claim 3, characterized in that, The width of the annular base is 0.5-2 mm, the diameter of the cross-section of the disc base is 20-25 mm, and the diameter of the cross-section of the cylindrical boss is 12-15 mm.

5. The bone grinding drawing auxiliary positioning tool according to claim 3, characterized in that, The annular base and the cylindrical boss are fixed to each other by two connecting bridges respectively set at both ends of a diameter. The connecting bridges divide the annular hollow into two parts symmetrical about the diameter.

6. The bone-grinding drawing-aided positioning tool according to claim 5, characterized in that, One of the connecting bridges is provided with the hollow channel, which connects the circular positioning hole to the outer side of the annular base.

7. The bone grinding drawing auxiliary positioning tool according to claim 6, characterized in that, The width of the connecting bridge is 3-5mm, the width of the hollow channel is 2-3mm, and the diameter of the circular positioning hole is 3-5mm.

8. The bone-grinding drawing auxiliary positioning tool according to claim 3, characterized in that, The height of the disc base is 0.5-2mm, and the cylindrical boss is 3-4mm higher than the height of the disc base.

9. The bone grinding drawing auxiliary positioning tool according to claim 3, characterized in that, This bone-grinding drawing and positioning tool is made of metal or plastic in one piece.

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