Telescopic distal radius combined steel plate

Abstract

The utility model discloses a telescopic distal radius combined steel plate which comprises a distal end portion, a first locking hole, a second locking hole, a second locking hole, a first steel plate and a second steel plate, wherein the distal end portion is provided with a first locking hole and a second locking hole; the near end part is provided with at least one third locking hole; wherein one end, close to the near-end part, of the far-end part is provided with a sliding guide part, one end, close to the far-end part, of the near-end part is in sliding connection with the sliding guide part, and the near-end part is movably arranged close to or far away from the far-end part. Through the application of the telescopic combined steel plate for the distal radius, the adjustment action on the steel plate in an operation is effectively reduced, the fracture area of a patient can be accurately fixed through the telescopic capacity of the combined steel plate, secondary injury to the patient is avoided, and postoperative recovery of the patient is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a retractable distal radius composite steel plate. Background Technology

[0002] Plates are one of the most widely used consumables in orthopedic surgery, typically for fracture fixation. Distal radius fractures are among the most common fractures, and most distal radius fractures require internal fixation with plates.

[0003] Currently, medical staff typically use Kirschner wires or screws to temporarily fix plates during open reduction and internal fixation of distal radius fractures. If the plate position needs adjustment, the Kirschner wires or screws are removed, the plate position is readjusted, and then the plate is temporarily fixed again until it is in the ideal position. However, if adjustments are made frequently, it can easily lead to loss of fracture reduction, causing secondary injury to the patient, increasing patient suffering, and wasting the medical staff's time. Furthermore, in cases of comminuted distal radius fractures and old distal radius fractures, there is often a loss of radial height, which cannot be quickly and accurately restored using existing plates. Utility Model Content

[0004] In view of this, and to solve the above problems, the purpose of this utility model is to provide a retractable distal radius composite steel plate, comprising:

[0005] The distal end is provided with a first locking hole and a second locking hole;

[0006] The proximal end portion is provided with at least one third locking hole;

[0007] The distal end of the distal end is provided with a sliding guide at one end near the proximal end, and the proximal end is slidably connected to the sliding guide at one end near the distal end. The proximal end is movably positioned near or away from the distal end.

[0008] In another preferred embodiment, the sliding guide is a sliding groove, which is formed on the distal end and the proximal end is slidably disposed within the sliding groove.

[0009] In another preferred embodiment, the proximal end is a slider, which is slidably disposed within the sliding groove, and the slider is provided with the third locking hole.

[0010] In another preferred embodiment, the slider is provided with a threaded hole for engaging with a screw.

[0011] In another preferred embodiment, the slide further includes: two baffles, one side of each baffle being disposed on both sides of the sliding groove, the other side of each baffle extending in a direction of mutual proximity, both baffles being disposed on the outside of the slider, and the third locking hole being disposed between the two baffles.

[0012] In another preferred embodiment, the sliding guide is two sliding rods, one end of each sliding rod is fixedly connected to one end of the distal end, and the other end of each sliding rod can be slidably extended into the proximal end.

[0013] In another preferred embodiment, one end of the proximal end is provided with two telescopic holes, and each of the sliding rods can be slidably disposed in one of the telescopic holes.

[0014] In another preferred embodiment, each of the baffles is provided with a first scale, which is used to observe the sliding distance of the slider in the sliding groove.

[0015] In another preferred embodiment, both sliding rods are provided with a second scale, which is used to observe the relative distance between the proximal end and the distal end.

[0016] In another preferred embodiment, it further includes: a first locking screw, a second locking screw, and a third locking screw, wherein the first locking screw matches the first locking hole, the second locking screw matches the second locking hole, and the third locking screw matches the third locking hole.

[0017] Because this utility model adopts the above-mentioned technical solution, its positive effects compared with the prior art are as follows:

[0018] By applying this utility model, a retractable distal radius composite plate is provided, which effectively reduces the need for plate adjustments during surgery. The retractable capability of the composite plate allows for precise fixation of the fracture area. For comminuted distal radius fractures and old distal radius fractures with radial height loss, this plate can easily, quickly, and accurately restore radial height and complete bone grafting and fixation, avoiding secondary injury to the patient and promoting better postoperative recovery. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a retractable distal radius composite steel plate of the present invention, in which the sliding guide part is a sliding groove.

[0020] Figure 2This is a structural diagram of a retractable distal radius composite steel plate of the present invention, in which the sliding guide part is a sliding rod.

[0021] Figure 3 This is a side view of a retractable distal radius composite steel plate of the present invention, wherein the sliding guide part is a sliding groove.

[0022] In the attached image:

[0023] 100, distal end; 110, first locking hole; 120, second locking hole; 130, fourth locking hole; 200, proximal end; 300, sliding guide; 400, third locking hole; 500, threaded hole; 600, baffle; 700, sliding rod. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0027] like Figures 1 to 2 The diagram illustrates a preferred embodiment of a retractable distal radius composite plate, comprising: a distal end portion 100, having a first locking hole 110 and a second locking hole 120; and a proximal end portion 200, having at least one third locking hole 400; wherein a sliding guide portion 300 is provided at one end of the distal end portion 100 near the proximal end portion 200, and the proximal end portion 200 is slidably connected to the sliding guide portion 300 at one end of the proximal end portion 200 near the distal end portion 100, and the proximal end portion 200 is movably disposed near or away from the distal end portion 100.

[0028] Furthermore, as a preferred embodiment, the number of third locking holes 400 is preferably one to five.

[0029] Furthermore, as a preferred embodiment, a palmar tilt angle is formed between the extending direction of the distal end 100 and the extending direction of the proximal end 200, which facilitates the contact between the distal end 100 and the radius. Further, the palmar tilt angle is preferably 15°, see [reference needed]. Figure 1 As shown, the vertical direction of the paper surface is the aforementioned extension direction, and the palm tilt angle is formed by tilting relative to the direction of the paper surface.

[0030] Furthermore, as a preferred embodiment, the sliding guide portion 300 is a sliding groove, which is formed on the distal end portion 100, and the proximal end portion 200 is slidably disposed in the sliding groove.

[0031] Furthermore, in a preferred embodiment, the first locking hole 110 and the second locking hole 120 are respectively disposed on both sides of the sliding groove.

[0032] Furthermore, as a preferred embodiment, the proximal end 200 is a slider, which is slidably disposed in a sliding groove, and a third locking hole 400 is provided on the slider.

[0033] Furthermore, as a preferred embodiment, the slider is provided with a threaded hole 500 for engaging with a screw. Further, the engagement of the screw and the threaded hole 500 allows the proximal end portion 200 to be fixed to the radial shaft, facilitating adjustment of the distance between the proximal end portion 200 and the distal end portion 100 by medical personnel.

[0034] Furthermore, as a preferred embodiment, a plurality of third locking holes 400 are arranged sequentially along the length direction of the proximal end 200, and a threaded hole 500 is disposed between two adjacent third locking holes 400.

[0035] Furthermore, as a preferred embodiment, it also includes: two baffles 600, one side of each baffle 600 is respectively disposed on both sides of the sliding groove, the other side of each baffle 600 extends in a direction that approaches each other, both baffles 600 are disposed on the outside of the slider, and a third locking hole 400 is disposed between the two baffles 600.

[0036] Furthermore, as a preferred embodiment, the baffle 600 is disposed at the distal end 200 away from the radius, such as... Figure 1 As shown, baffle 600 is disposed on the upper surface of the distal end.

[0037] Furthermore, as a preferred embodiment, each baffle 600 is provided with a first scale. The first scale is used to observe the sliding distance of the slider within the sliding groove.

[0038] Furthermore, as a preferred embodiment, the sliding guide portion 300 consists of two sliding rods 700, one end of each sliding rod 700 is fixedly connected to one end of the distal end portion 100, and the other end of each sliding rod 700 can be slidably extended into the proximal end portion 200.

[0039] Furthermore, as a preferred embodiment, two telescopic holes are provided at one end of the proximal end 200, and each sliding rod 700 can be slidably disposed in one telescopic hole.

[0040] Furthermore, as a preferred embodiment, both sliding rods 700 are provided with a second scale. The second scale is further used to observe the relative distance between the proximal end 200 and the distal end 100.

[0041] Furthermore, as a preferred embodiment, the shape of the sliding rod 700 is preferably a cylinder, a square prism, or a hexagonal prism.

[0042] Furthermore, as a preferred embodiment, it further includes: a first locking screw, a second locking screw, and a third locking screw, wherein the first locking screw mates with a first locking hole 110, the second locking screw mates with a second locking hole 120, and the third locking screw mates with a third locking hole 400. Further, the first locking hole 110 is used for insertion of the first locking screw, the second locking hole 120 is used for insertion of the second locking screw, and the third locking hole 400 is used for insertion of the third locking screw.

[0043] Furthermore, as a preferred embodiment, it further includes: a plurality of fourth locking holes 130, the plurality of fourth locking holes 130 being disposed at the upper end of the distal end 100. Further, as... Figures 1 to 2 As shown, a number of fourth locking holes 130 are arranged at intervals from left to right at the upper end of the distal end 100.

[0044] Furthermore, as a preferred embodiment, each fourth locking hole 130 adopts a tapered hole structure, preferably with a taper of 15°, so that medical personnel can adjust the angle at which the fourth screw is inserted into the radius according to the patient's fracture condition.

[0045] Furthermore, as a preferred embodiment, it further includes: a plurality of fourth locking screws, each fourth locking screw mating with a fourth locking hole 130. The fourth locking hole 130 is further used for the insertion of the fourth locking screw.

[0046] Furthermore, as a preferred embodiment, the first locking hole 110, the second locking hole 120, the third locking hole 400, and the fourth locking hole 130 are all threaded locking holes.

[0047] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model.

[0048] Based on the above, this utility model also has the following embodiments:

[0049] In a further embodiment of this utility model, the retractable distal radius combined steel plate also needs to be used in conjunction with a spreading tool. More specifically, the spreading tool is preferably a clamp body, which can be used to extend or shorten the combined steel plate.

[0050] Specifically, medical staff insert the two clamps of the spreading tool into the third locking hole 400 and the fourth locking hole 130 respectively. By applying force to the spreading tool, the two clamps move closer or further apart, thereby causing the distal end 100 and the proximal end 200 to gradually move closer or further apart.

[0051] In a further embodiment of this utility model, when the retractable distal radius composite steel plate is fixed, the first locking screw, the third locking screw and the second locking screw need to be fixed in sequence, and then the medical staff will reinforce the proximal end 200 a second time with the fourth locking screw.

[0052] In a further embodiment of this utility model, when the retractable distal radius combined steel plate is fixed, the position of the distal end 100 should not exceed the position of the distal radius watershed, so as to prevent the screw from entering the joint cavity and prevent damage to the joint capsule ligaments.

[0053] The specific operating steps of this utility model of a retractable distal radius composite steel plate are as follows:

[0054] like Figure 1 As shown, when the sliding guide 300 is a sliding groove, the operating steps of this retractable distal radius composite plate are as follows:

[0055] When the patient has not lost radial height:

[0056] First, medical staff reduced the fracture area and fixed the radius fracture area with a Kirschner wire. Next, they used screws to fix the proximal end 200 to the radial shaft using threaded holes 500. Based on the fracture details, they placed the distal end 100 at the distal end of the radius. They adjusted the distance between the proximal and distal ends 200. Once they were in the correct positions, they sequentially inserted the first, third, and second locking screws at the corresponding locations on the radius. Finally, they completed the secondary fixation of the distal end 100 using a fourth locking screw. This completed the fixation of the retractable distal radius composite plate.

[0057] Fresh comminuted fractures of the distal radius and old distal radius fractures are often accompanied by loss of radius height. When a patient has a loss of radius height:

[0058] The area of ​​radius height loss is the bone defect area. For both types of fractures, the medical staff first roughly reduces the distal radius fracture, then temporarily fixes it with Kirschner wires. The medical staff then measures and records the data of radius height loss. Next, the medical staff fixes the proximal 200 and distal 100 to the radius. The fixation operation of the proximal 200 and distal 100 is similar to that described above. After removing the Kirschner wires, the medical staff uses a spreading tool to spread the proximal 200 and distal 100, allowing the combined plate to elongate and separate the distal and proximal fracture ends. The radius height is then precisely restored based on the previously measured data of radius height loss. Finally, all screws are tightened to prevent further shortening and displacement of the radius. The fracture area is fixed by the cooperation of the proximal 200 and distal 100, making the bone defect area clearly visible. The medical staff then implants an appropriate amount of artificial bone into the bone defect area according to the previously recorded data.

[0059] When the sliding guide 300 is a sliding rod 700, the operation steps are similar to those described above, and will not be repeated here.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A retractable distal radius composite steel plate, characterized in that, include: The distal end is provided with a first locking hole and a second locking hole; The proximal end portion is provided with at least one third locking hole; The distal end of the distal end is provided with a sliding guide at one end near the proximal end, and the proximal end is slidably connected to the sliding guide at one end near the distal end. The proximal end is movably positioned near or away from the distal end.

2. The retractable distal radius composite steel plate according to claim 1, characterized in that, The sliding guide is a sliding groove, which is formed on the distal end and the proximal end is slidably disposed in the sliding groove.

3. The retractable distal radius composite steel plate according to claim 2, characterized in that, The proximal end is a slider, which is slidably disposed in the sliding groove, and the slider is provided with the third locking hole.

4. The retractable distal radius composite steel plate according to claim 3, characterized in that, The slider is provided with a threaded hole for engaging with a screw.

5. The retractable distal radius composite steel plate according to claim 3, characterized in that, Also includes: Two baffles are provided, with one side of each baffle being disposed on both sides of the sliding groove, and the other side of each baffle extending in a direction that brings them closer to each other. Both baffles are disposed on the outside of the slider, and the third locking hole is disposed between the two baffles.

6. The retractable distal radius composite steel plate according to claim 1, characterized in that, The sliding guide portion consists of two sliding rods, one end of each sliding rod is fixedly connected to one end of the distal end, and the other end of each sliding rod can be slidably extended into the proximal end.

7. The retractable distal radius composite steel plate according to claim 6, characterized in that, Two telescopic holes are provided at one end of the proximal end, and each of the sliding rods can be slidably disposed in one of the telescopic holes.

8. The retractable distal radius composite steel plate according to claim 5, characterized in that, Each of the baffles is provided with a first scale, which is used to observe the sliding distance of the slider in the sliding groove.

9. The retractable distal radius composite steel plate according to claim 6, characterized in that, Both sliding rods are provided with a second scale, which is used to observe the relative distance between the proximal end and the distal end.

10. The retractable distal radius composite steel plate according to claim 1, characterized in that, Also includes: A first locking screw, a second locking screw, and a third locking screw, wherein the first locking screw matches the first locking hole, the second locking screw matches the second locking hole, and the third locking screw matches the third locking hole.

Images