Tibial plateau guide needle horizontal placement positioner

Abstract

The utility model discloses a tibial plateau guide needle horizontal imbedding positioner which comprises a positioning column and a positioning sleeve, the side face of the positioning column is connected with a positioning rod, the positioning rod is arranged in the horizontal direction, the end, away from the positioning column, of the positioning rod is connected with a positioning cone, and the positioning cone vertically extends downwards at the connecting position of the positioning cone and the positioning rod. The positioning sleeve comprises a vertical part and a horizontal part, the lower end of the positioning column is sleeved with the vertical part, the vertical part can move up and down relative to the positioning column, a fixing piece used for fixing the position of the vertical part is arranged on the vertical part, the horizontal part is fixedly connected with the lower end of the vertical part, the horizontal part is arranged in the horizontal direction, and the horizontal part is of a hollow structure capable of allowing the guide pin to penetrate through. According to the utility model, the implantation direction and position of the guide needle can be accurately positioned in a tibial plateau screw implantation operation, so that the horizontal implantation positioning of the screw is accurate, the operation efficiency is improved, and the risk of damaging surrounding tissues is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical equipment, and specifically relates to a tibial plateau guide needle horizontal placement positioner. BACKGROUND

[0002] When tibia collapses or fractures, screw fixation is a common surgical treatment method, and a guide needle needs to be used for guiding and assisting screw placement during screw placement, tibial plateau fracture often combines with collapse of the fracture surface, and 2-3 screws need to be horizontally placed for fixation after reduction of the articular surface, but the direction and depth of screw placement are difficult to accurately control due to narrow joint space, which may cause unreliable fracture fixation or risk of damaging surrounding blood vessels and nerves, and currently there is no suitable positioning device for tibial plateau fracture screw horizontal placement, and only the surgical experience of doctors can be used for screw horizontal placement operation, so that the direction and depth of the guide needle cannot be accurately positioned during the placement of the guide needle, and the direction and depth of the screw cannot be accurately positioned, the surgical efficiency of tibial plateau screw horizontal placement is low, and there is a certain risk of damaging surrounding tissues, therefore, in order to avoid the shortcomings in the prior art, it is necessary to improve the prior art. SUMMARY

[0003] The utility model discloses a tibial plateau guide needle horizontal placement positioner, which can accurately position the direction and position of the guide needle during tibial plateau screw placement surgery, so that the screw horizontal placement is accurately positioned, the surgical efficiency is improved, and the risk of damaging surrounding tissues is reduced.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A tibial plateau guide needle horizontal placement positioner, comprising a positioning column and a positioning sleeve, the side surface of the positioning column is connected with a positioning rod, the positioning rod is arranged in a horizontal direction, one end of the positioning rod away from the positioning column is connected with a positioning cone, the positioning cone vertically extends downward at the connection position with the positioning rod, the positioning sleeve comprises a vertical part and a horizontal part, the vertical part is sleeved on the lower end of the positioning column, the vertical part can move up and down relative to the positioning column, a fixing piece for fixing the position of the vertical part is arranged on the vertical part, the horizontal part is fixedly connected with the lower end of the vertical part, the horizontal part is arranged in a horizontal direction, and the horizontal part is a hollow structure through which the guide needle can pass.

[0006] As the preferred scheme of the above-mentioned tibial plateau guide needle horizontal placement positioner, the fixing piece is a fixing bolt, a screw hole is arranged on the vertical part, and the fixing bolt abuts against the positioning column through the screw hole.

[0007] As a preferred embodiment of the above-mentioned tibial plateau guide pin horizontal insertion locator, there are two fixing bolts, which are respectively located on both sides of the vertical part.

[0008] As a preferred embodiment of the above-mentioned tibial plateau guide pin horizontal insertion locator, the locating post is provided with a first scale along the vertical direction.

[0009] As a preferred embodiment of the above-mentioned tibial plateau guide pin horizontal insertion locator, a second scale is provided on the horizontal part along the horizontal direction.

[0010] As a preferred embodiment of the above-mentioned tibial plateau guide pin horizontal insertion locator, the locating rod is perpendicular to the locating post, and the vertical part is perpendicular to the horizontal part.

[0011] The advantages of implementing the tibial plateau guide pin horizontal insertion locator provided by this utility model compared with the prior art are as follows:

[0012] This invention assists in the precise placement of the guide pin, enabling accurate horizontal insertion of the screw into the tibia during surgery and improving surgical efficiency. The positioning cone of this invention is used to hold the tibial plateau. The positioning cone is connected to the positioning column via a positioning rod. Rotating the positioning column around the positioning cone adjusts the angle of guide pin insertion. The positioning rod is horizontally positioned to ensure that the positioning column remains at the same horizontal height when rotated around the positioning cone, preventing deviations in the height of the inserted guide pin. A positioning sleeve is fitted onto the lower end of the positioning column, and the vertical part can move up and down relative to the positioning column. The horizontal part is fixedly connected to the vertical part and adjusts its position by moving up and down with the vertical part. When it is necessary to adjust the horizontal insertion position of the guide pin, it is moved up and down to the vertical part to adjust the position of the horizontal part. After alignment, the vertical part is fixed in place using fasteners. When the angle of the guide pin insertion needs to be adjusted, the positioning column is rotated around the positioning cone to adjust to the appropriate position. The horizontal part is set in a horizontal direction to guide the insertion of the guide pin. The horizontal part has a hollow structure, allowing the guide pin to pass through and be inserted into the tibia. The horizontal part ensures that the guide pin can be inserted into the tibia in a horizontal direction. The tibial platform guide pin horizontal insertion locator of this utility model can accurately locate the direction and position of the guide pin insertion during surgery, so that the hollow medical screw can pass through the guide pin and be horizontally inserted into the tibia in a determined direction and position under the positioning action of the guide pin. Accurately locating the direction and position of the guide pin insertion can improve the efficiency of the operation and reduce the risk of damage to surrounding tissues during the operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0014] Fig. 1This is a schematic diagram of the tibial plateau guide pin horizontal insertion locator and its usage status with the tibia.

[0015] Fig. 2 This is a schematic diagram of the screw being inserted into the tibia along the guide pin.

[0016] Marked in the image:

[0017] 100. Positioning pin; 110. Positioning rod; 120. Positioning cone; 130. First graduation; 200. Positioning sleeve; 210. Vertical part; 211. Screw hole; 212. Fixing bolt; 220. Horizontal part; 230. Fixing component; 240. Second graduation; 300. Tibia; 400. Guide pin; 500. Screw. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please refer to the following: Figs. 1-2 The tibial plateau guide pin horizontal insertion locator provided in the embodiments of this utility model will now be described.

[0023] like Figs. 1-2As shown, the tibial 300 platform guide pin 400 horizontal insertion locator of this utility model includes a positioning post 100 and a positioning sleeve 200. A positioning rod 110 is connected to the side of the positioning post 100. The positioning rod 110 is arranged in a horizontal direction. A positioning cone 120 is connected to the end of the positioning rod 110 away from the positioning post 100. The positioning cone 120 extends vertically downward at the connection with the positioning rod 110. The positioning sleeve 200 includes a vertical part 210 and a horizontal part 220. The vertical part 210 is sleeved on the lower end of the positioning post 100. The vertical part 210 can move up and down relative to the positioning post 100. A fixing member 230 for fixing the position of the vertical part 210 is provided on the vertical part 210. The horizontal part 220 is fixedly connected to the lower end of the vertical part 210. The horizontal part 220 is arranged in a horizontal direction and is a hollow structure that allows the guide pin 400 to pass through.

[0024] Specifically, the positioning rod 110 has a smaller diameter than the positioning post 100. Since the positioning rod 110 needs to be inserted into the narrow joint space so that the positioning cone 120 can rest against the tibia 300 platform, the positioning rod 110 with a smaller diameter is needed to facilitate insertion into the narrow joint space.

[0025] The positioning cone 120 is pressed against the patient's tibial plane 300, allowing the positioning column 100 to rotate around the positioning cone 120, which facilitates angle adjustment.

[0026] For example, the fixing member 230 is a fixing bolt 212. The vertical part 210 is provided with a screw hole 211. The fixing bolt 212 passes through the screw hole 211 and abuts against the positioning post 100. After the vertical part 210 moves up and down along the positioning post 100 to adjust its height position, the position of the vertical part 210 needs to be fixed to prevent the vertical part 210 from shifting and causing a height deviation when the guide needle 400 is inserted. The position of the vertical part 210 is fixed by tightening the fixing bolt 212 against the positioning post 100. This is convenient to operate. During the operation, multiple screws 500 of different heights need to be inserted. Therefore, multiple guide needles 400 of different heights need to be inserted. The position of the vertical part 210 is fixed by tightening the fixing bolt 212. This makes it convenient to adjust the position of the vertical part 210 after loosening the fixing bolt 212 to insert other guide needles 400 of different heights. Fixing with the fixing bolt 212 facilitates subsequent adjustments and improves surgical efficiency.

[0027] For example, there are two fixing bolts 212, which are respectively disposed on both sides of the vertical part 210. The fixing bolts 212 on both sides of the vertical part 210 make the vertical part 210 more stable when it is fixed.

[0028] For example, the positioning post 100 is provided with a first scale 130 along the vertical direction. The height position of the vertical part 210 is precisely adjusted by the first scale 130, so that the height of the guide pin 400 when it is inserted is more accurate, and it is convenient to reasonably arrange the different height positions of multiple guide pins 400.

[0029] For example, a second scale 240 is provided on the horizontal part 220 along the horizontal direction. The depth of the guide pin 400 inserted into the tibia 300 can be accurately read through the second scale 240, thereby determining the required depth of the screw 500, so as to select a screw 500 of appropriate depth for insertion.

[0030] For example, the positioning rod 110 is perpendicular to the positioning post 100, and the vertical part 210 is perpendicular to the horizontal part 220. The perpendicularity between the positioning rod 110 and the positioning post 100 can make the positioning of the positioning post 100 in the height direction more accurate. With the help of the scale, the vertical height distance between the guide needle 400 and the positioning rod 110 can be measured. The perpendicularity between the vertical part 210 and the horizontal part 220 can make the insertion depth of the guide needle 400 more accurate, and prevent the guide needle 400 from being inserted obliquely into the tibia 300.

[0031] The advantages of implementing the tibial 300 platform guide pin 400 horizontal insertion locator provided by this utility model compared with the prior art are as follows:

[0032] This invention assists in the precise positioning and insertion of the guide pin 400, thereby ensuring the screw 500 is accurately and horizontally inserted into the tibia 300 during surgery, improving surgical efficiency. The positioning cone 120 of this invention is used to abut against the tibia 300 platform. The positioning cone 120 is connected to the positioning post 100 via the positioning rod 110. Rotating the positioning post 100 around the positioning cone 120 adjusts the insertion angle of the guide pin 400. The positioning rod 110 is horizontally positioned to ensure that the positioning post 100 remains at the same horizontal height when rotated around the positioning cone 120, preventing deviations in the height of the inserted guide pin 400. The positioning sleeve 200 is fitted onto the lower end of the positioning post 100, and the vertical part 210 can move up and down relative to the positioning post 100. The horizontal part 220 is fixedly connected to the vertical part 210 and adjusts its position by moving up and down with the vertical part 210. When it is necessary to adjust the horizontal insertion position of the guide pin 400, it is moved up and down to the vertical part 210 to adjust the horizontal part 220. After the position is adjusted, the vertical part 210 is fixed in place using the fixing part 230. When it is necessary to adjust the angle of the guide pin 400 insertion, the positioning column 100 is rotated around the positioning cone 120 to adjust to the appropriate position. The horizontal part 220 is set in the horizontal direction to guide the insertion of the guide pin 400. The horizontal part 220 is a hollow structure, which allows the guide pin 400 to pass through the horizontal part 220 and be inserted into the tibia 300. The horizontal part 220 is set in the horizontal direction to ensure that the guide pin 400 can be inserted into the tibia 300 in a horizontal direction. Through the tibia 300 platform guide pin 400 horizontal insertion locator of this utility model, the direction and position of the guide pin 400 insertion can be accurately positioned during the operation, so that the hollow medical screw 500 can pass through the guide pin 400 and be inserted into the tibia 300 in a determined direction and position under the positioning action of the guide pin 400. Accurately positioning the direction and position of the guide pin 400 insertion can improve the efficiency of the operation and reduce the risk of damage to surrounding tissues during the operation.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A tibial plateau guide pin horizontal insertion locator, characterized in that, include: A positioning post, wherein a positioning rod is connected to the side of the positioning post, the positioning rod is arranged in a horizontal direction, and a positioning cone is connected to the end of the positioning rod away from the positioning post, the positioning cone extending vertically downward at the connection point with the positioning rod; A positioning sleeve, comprising a vertical part and a horizontal part, wherein the vertical part is sleeved on the lower end of the positioning post and is capable of moving up and down relative to the positioning post; the vertical part is provided with a fixing member for fixing the position of the vertical part; the horizontal part is fixedly connected to the lower end of the vertical part and is arranged in a horizontal direction; the horizontal part is a hollow structure that allows a guide needle to pass through.

2. The tibial plateau guide pin horizontal insertion locator according to claim 1, characterized in that, The fixing component is a fixing bolt, and a screw hole is provided on the vertical part. The fixing bolt passes through the screw hole and abuts against the positioning post.

3. The tibial plateau guide pin horizontal insertion locator according to claim 2, characterized in that, There are two fixing bolts, which are respectively located on both sides of the vertical part.

4. The tibial plateau guide pin horizontal insertion locator according to claim 1, characterized in that, The positioning post has a first scale mark along the vertical direction.

5. The tibial plateau guide pin horizontal insertion locator according to claim 1, characterized in that, The horizontal section has a second scale along the horizontal direction.

6. The tibial plateau guide pin horizontal insertion locator according to claim 1, characterized in that, The positioning rod is perpendicular to the positioning post, and the vertical part is perpendicular to the horizontal part.

Images