Tibia side osteotomy plate for ankle joint replacement
By setting a needle insertion area and needle insertion hole on the osteotomy plate and using a surgical needle for positioning, the problem of poor positioning of existing osteotomy plates is solved, the operation steps are simplified, the operation time is shortened, and the operation efficiency is improved.
Patent Information
- Application Number
- CN202423083760.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing ankle replacement osteotomy plates suffer from problems such as repeated positioning during the positioning process, which affects the fitting of the chamfered hole and osteotomy surface, increases surgical instruments and operation steps, and prolongs operation time.
By setting a needle insertion area and needle insertion hole on the osteotomy plate and using a surgical needle for positioning, drilling is avoided and the fixation process of the osteotomy plate is simplified.
It enables rapid positioning of the osteotomy plate, reduces the use of surgical instruments and operation steps, shortens operation time, and improves surgical efficiency.
Smart Images
Figure CN223944450U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tibial side osteotomy plate for ankle replacement and belongs to the field of medical instruments. BACKGROUND
[0002] At present, the tibial osteotomy plate used in ankle replacement is divided into two categories, one of which is to first drill chamfer holes by using a developing module and then cut the tibia by using the osteotomy plate, and the other of which is to drill two holes at the position where the hole is needed to be drilled on the osteotomy plate, drill chamfer holes by using the two holes reserved on the osteotomy plate, and then insert two limiting columnar bodies into the position where the hole is drilled, and finally cut the tibia. The shortcomings of the two types of osteotomy plates are as follows:
[0003] 1. The repeated positioning affects the fitting of the chamfer hole and the osteotomy surface when the hole is drilled by using the developing module, which is likely to cause steps, resulting in the fitting of the prosthesis and the cut plane, and further affecting the bone length; at the same time, the surgical instruments are increased, thereby increasing the operation steps of the doctor and prolonging the operation time.
[0004] 2. The hole is directly drilled on the osteotomy plate, which prolongs the operation time due to the multiple operation steps.
[0005] Therefore, it is necessary to improve the existing osteotomy plate to solve the above problems. CONTENT OF THE UTILITY MODEL
[0006] To solve the above technical problems, the utility model provides a tibial side osteotomy plate for ankle replacement, which is positioned by inserting surgical needles in the needle penetrating area, without the need for drilling holes for fixation, is simple to operate, and is practical.
[0007] The technical scheme of the utility model is as follows:
[0008] A tibial side osteotomy plate for ankle replacement comprises a base body and an osteotomy area penetrating the base body, the two sides of the base body relative to the osteotomy area are respectively provided with a first base part and a second base part, the shapes of the osteotomy area, the first base part and the second base part are adapted to each other, the side of the first base part facing the second base part is provided with a first half slot hole, the second base part is correspondingly provided with a second half slot hole, a needle penetrating area is formed between the first half slot hole and the second half slot hole, and the second base part is further provided with a needle penetrating hole, at least two surgical needles are respectively penetrated into the needle penetrating area and the needle penetrating hole to position the osteotomy plate.
[0009] As a further improvement of the utility model, the osteotomy area is substantially U-shaped and comprises a first osteotomy area parallel to the horizontal plane and second and third osteotomy areas extending from the first osteotomy area towards the two sides, and the second base part is formed between the second and third osteotomy areas.
[0010] As a further improvement of the utility model, the second osteotomy area and the third osteotomy area extend away from each other.
[0011] As a further improvement of the utility model, the needle passing area is provided with two, and is located at the connecting place of the first osteotomy area and the second osteotomy area and the connecting place of the first osteotomy area and the third osteotomy area.
[0012] As a further improvement of the utility model, at least one of the surgical needles is limited by one of the needle passing areas, and has a first abutting surface extending at least partially into the first osteotomy area and a second abutting surface extending at least partially into the second osteotomy area or the third osteotomy area.
[0013] As a further improvement of the utility model, the osteotomy area is for the movement of an osteotomy tool, and the osteotomy tool moves along the osteotomy area to abut against the surgical needle located in the needle passing area.
[0014] As a further improvement of the utility model, the needle passing area is defined as a circle, the maximum straight line distance between the first half slot hole and the second half slot hole is the diameter of the needle passing area, and the diameter of the needle passing area is greater than the diameter of the surgical needle.
[0015] As a further improvement of the utility model, the maximum straight line distance between the first half slot hole and the second half slot hole is between 2.6mm and 2.8mm.
[0016] As a further improvement of the utility model, the needle passing hole is provided with two and is arranged in parallel, and two surgical needles are simultaneously transmitted into the two needle passing holes to limit the osteotomy plate.
[0017] As a further improvement of the utility model, the first base and the second base are integrally formed, so that the osteotomy area is a closed area.
[0018] The utility model has the beneficial technical effects that the osteotomy plate sets the first half slot hole on the side of the first base of the base body facing the second base, sets the second half slot hole on the second base correspondingly, forms the needle passing area between the first half slot hole and the second half slot hole, sets the needle passing hole on the second base at the same time, and positions the osteotomy plate by at least two surgical needles penetrating into the needle passing area and the needle passing hole respectively. Thus, the positioning of the osteotomy plate can be realized without drilling, and the operation is simple and practical. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the structure schematic view of the osteotomy plate of the utility model. DETAILED DESCRIPTION
[0020] In order to enable the technical means of the utility model to be understood more clearly and to be implemented in accordance with the contents of the specification, the specific embodiments of the utility model will be described in further detail below in combination with the drawings and examples, and the following examples are used to illustrate the utility model but are not used to limit the scope of the utility model.
[0021] Please refer to Figure 1 As shown in the figure, the utility model discloses a kind of ankle joint replacement tibial side osteotomy plate 100, including base body 1 and the osteotomy area 10 being arranged on the base body 1, the two sides of the base body 10 relative to the osteotomy area 10 are respectively provided with first base 11 and second base 12, the shape of the osteotomy area 10, the first base 11 and the second base 12 mutually adapt.The osteotomy area 10 is moved for osteotomy with osteotomy tool.
[0022] In the embodiment, the first base 11 and the second base 12 are integrally formed, so that the osteotomy area 10 is a closed area.I.e., the osteotomy area 10 is the through osteotomy area opened in the base body 1.
[0023] The osteotomy area 10 is roughly U-shaped, and includes first osteotomy area 101 parallel to the horizontal direction, and second osteotomy area 102 and third osteotomy area 103 extending from the first osteotomy area 101 towards both sides, and the second base 12 is formed between the second osteotomy area 102 and the third osteotomy area 103.
[0024] Preferably, the second osteotomy area 102 and the third osteotomy area 103 extend away from each other.I.e., the second osteotomy area 102 and the third osteotomy area 103 are inclined to extend.In this way, it is more convenient for doctors to perform osteotomy operation.Of course, in other embodiments, the second osteotomy area 102 and the third osteotomy area 103 can also extend parallelly or approach each other, which is not limited.
[0025] The side of the first base 11 towards the second base 12 is provided with a first half slot hole 110, the second base 12 is correspondingly provided with a second half slot hole 120, a needle passing area 111 is formed between the first half slot hole 110 and the second half slot hole 120, and a needle passing hole 121 is further provided on the second base 12, at least two surgical needles are respectively passed into the needle passing area 111 and the needle passing hole 121 to position the osteotomy plate 100.That is, when the needle passing area 111 and the needle passing hole 121 are both limited to surgical needles, the osteotomy plate 100 will be fixed by two holes, and will not move during osteotomy, affecting the operation effect.
[0026] At least one of the surgical needles is limited by one of the needle passing regions 111 and has a first abutting surface extending at least partially into the first osteotomy region 101 and a second abutting surface extending at least partially into the second osteotomy region 102 or the third osteotomy region 103. That is, the surgical needle is at least partially located on the moving path of the osteotomy tool, and when the osteotomy tool abuts against the surgical needle, the surgeon can choose to pause the continuous osteotomy in the corresponding osteotomy region and move to the next osteotomy region to perform osteotomy. In other words, the first osteotomy region 101, the second osteotomy region 102 and the third osteotomy region 103 are spaced by the surgical needle located in the corresponding needle passing region 111, and the surgery cannot be continuously performed.
[0027] The needle passing region 111 is defined as a circle, the maximum straight line distance between the first half slot hole 110 and the second half slot hole 120 is the diameter of the needle passing region 111, and the diameter of the needle passing region 111 is greater than the diameter of the surgical needle. Preferably, the maximum straight line distance between the first half slot hole 110 and the second half slot hole 120 is between 2.6mm and 2.8mm. Because in this embodiment, the surgical needle selected is a 2.5mm Kirschner wire, in other embodiments, according to the selection of other surgical needles or different specifications of Kirschner wires, the size of the diameter of the needle passing region 111 can also be adjusted, as long as the diameter of the needle passing region 111 is greater than the diameter of the surgical needle.
[0028] The needle passing hole 121 is provided with two parallel arrangements, and two surgical needles are simultaneously inserted into the two needle passing holes 121 to limit the osteotomy plate 100.
[0029] In this embodiment, when in use, the osteotomy plate 100 is initially fixed by inserting two surgical needles into the needle passing hole 121, and then two surgical needles are inserted into the two needle passing regions 111 to fix the osteotomy plate 100 on the plane. In this way, compared with the method of fixing the osteotomy plate 100 only by the two surgical needles in the needle passing hole 121, the osteotomy plate 100 is more stable and the displacement of the osteotomy plate 100 during the surgery is avoided. Compared with the method of drilling holes for fixation, the medical devices are less, the operation steps are simplified, and the use of the surgeon is more convenient, which has practicality.
[0030] In summary, the utility model discloses the osteotomy plate 100 through the first half slot hole 110 of the first base 11 of base body 1 to the one side of second base 12 is provided with, corresponding second half slot hole 120 is provided on second base 12, to form the needle area 111 between first half slot hole 110 and second half slot hole 120, the needle hole of being equipped with simultaneously on second base is used at least two surgical needles respectively to enter needle area and needle hole to position the osteotomy plate in. Such need not to carry out drilling to realize the positioning of osteotomy plate, simple operation has practicality.
[0031] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and it should be pointed out that for ordinary skilled person in the art, under the premise of not departing from the technical principle of the utility model, can also make a number of improvements and variations, and these improvements and variations also should be regarded as the protection scope of the utility model.
Claims
1. A tibial bone side osteotomy plate for an ankle joint replacement, characterized by, The application relates to an osteotomy plate (100) comprising a base (1) and an osteotomy area (10) passing through the base (1), wherein the two sides of the base (1) relative to the osteotomy area (10) are respectively provided with a first base (11) and a second base (12), the shapes of the osteotomy area (10), the first base (11) and the second base (12) are adapted to each other, the side of the first base (11) facing the second base (12) is provided with a first half slot hole (110), the second base (12) is correspondingly provided with a second half slot hole (120), a needle passing area (111) is formed between the first half slot hole (110) and the second half slot hole (120), and the second base (12) is further provided with a needle passing hole (121), at least two surgical needles are respectively passed into the needle passing area (111) and the needle passing hole (121) to position the osteotomy plate (100).
2. The ankle replacement tibial osteotomy plate of claim 1, wherein, The osteotomy area (10) is substantially U-shaped, and comprises a first osteotomy area (101) parallel to the horizontal plane, and a second osteotomy area (102) and a third osteotomy area (103) extending from the first osteotomy area (101) to the two sides, and the second base (12) is formed between the second osteotomy area (102) and the third osteotomy area (103).
3. The ankle replacement tibial osteotomy plate of Claim 2, wherein, The second osteotomy area (102) and the third osteotomy area (103) extend away from each other.
4. The ankle arthrodesis tibial bone cutting plate of Claim 2, wherein, The needle passing area (111) is provided with two, and is respectively located at the connection of the first osteotomy area (101) and the second osteotomy area (102), and the connection of the first osteotomy area (101) and the third osteotomy area (103).
5. The ankle replacement tibial osteotomy plate of Claim 4, wherein, At least one of the surgical needles is limited by one of the needle passing areas (111), and has a first abutting surface extending at least partially into the first osteotomy area (101) and a second abutting surface extending at least partially into the second osteotomy area (102) or the third osteotomy area (103).
6. The ankle replacement tibial osteotomy plate of Claim 1, wherein, The osteotomy area (10) is used for moving an osteotomy tool, and the osteotomy tool moves along the osteotomy area (10) to abut against the surgical needle located in the needle passing area (111).
7. The ankle replacement tibial osteotomy plate of Claim 1, wherein, The needle passing area (111) is circular, the maximum straight line distance between the first half slot hole (110) and the second half slot hole (120) is the diameter of the needle passing area (111), and the diameter of the needle passing area (111) is greater than the diameter of the surgical needle.
8. The ankle replacement tibial osteotomy plate of Claim 7, wherein, The maximum straight line distance between the first half slot hole (110) and the second half slot hole (120) is between 2.6 mm and 2.8 mm.
9. The ankle replacement tibial osteotomy plate of Claim 1, wherein, The needle passing hole (121) is provided with two and is arranged in parallel, and two surgical needles are simultaneously passed into the two needle passing holes (121) to limit the osteotomy plate (100).
10. The ankle replacement tibial osteotomy plate of Claim 1, wherein, The first base (11) and the second base (12) are integrally formed, so that the osteotomy area (10) is a closed area.