Radius locking device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a radius locking device. The radius locking device comprises a locking plate, the locking plate comprises a first locking part and a second locking part, and the first locking part and the second locking part are connected with each other; the first locking part comprises two locking petals, the two locking petals are arranged at an included angle and are provided with a plurality of first fixing holes, and first bone screws can penetrate through the first fixing holes and fix the first locking part to the distal radius; the two locking petals can be respectively bent to change the shapes of the locking petals, so that the locking petals are attached to the distal radius; a plurality of second fixing holes are formed in the second locking part at intervals, and second bone screws can penetrate through the second fixing holes and fix the second locking part to the radius trunk. According to different fracture patients and fracture degrees, the two locking flaps can be independently used and bent to change the shape, so that the universality of the radius locking device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a radius locking device. Background Art

[0002] Distal radius fracture refers to a fracture within 3 cm from the articular surface of the lower end of the radius. This area is the junction of the cancellous bone and the compact bone. It is an anatomically weak point and is prone to fracture once subjected to external force.

[0003] In the prior art, the main treatment method is to implant a locking plate or an osteotomy plate. However, the traditional locking plates or osteotomy plates have fixed specifications and sizes, which have limitations and cannot be adapted for different fracture patients. Therefore, the requirements for the doctors performing the surgery are high and the treatment effect is not significant. Utility Model Content

[0004] The purpose of the utility model is to provide a radius locking device to solve the problem that traditional locking osteosynthesis plates or osteotomy plates in the prior art are fixed in size, have limitations, and cannot be adapted for different fracture patients. The utility model improves the versatility of treatment, simplifies the difficulty of surgical operation, and improves the treatment effect.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Radius locking device, comprising:

[0007] A locking plate, the locking plate comprising a first locking portion and a second locking portion, the first locking portion and the second locking portion being connected to each other; the first locking portion comprising two locking flaps, the two locking flaps being arranged at an angle and provided with a plurality of first fixing holes, a first bone screw being able to pass through the first fixing holes and fix the first locking portion to the distal end of the radius; the two locking flaps being able to bend respectively to change their own shapes so as to fit the distal end of the radius; a plurality of second fixing holes being arranged at intervals on the second locking portion, a second bone screw being able to pass through the second fixing holes and fix the second locking portion to the main trunk of the radius.

[0008] As an optional technical solution of the radius locking device, the first fixing hole is set as a threaded hole, and the first bone screw can be screwed with the first fixing hole and the distal end of the radius in sequence to fix the first locking part to the distal end of the radius.

[0009] As an optional technical solution for the radial locking device, an arcuate groove is provided between the second fixing hole and the side of the second locking portion away from the radial trunk, and the arcuate groove can accommodate the end of the second bone screw so that the end surface of the end is flush with or recessed on the side of the second locking portion away from the radial trunk.

[0010] As an optional technical solution of the radius locking device, the second fixing hole is configured as a long hole, and the second bone screw can change the screwing position in the second fixing hole to change the screwing position with the radial trunk.

[0011] As an optional technical solution of the radius locking device, the second fixing hole is configured as two intersecting circular holes, and the second bone screw can be selectively screwed with the two circular holes to change the screwing position with the radial trunk.

[0012] As an optional technical solution of the radius locking device, the second fixing hole is configured as a cross-shaped circular hole and a long hole, and the second bone screw can be screwed with the circular hole or at any position of the long hole to change the screwing position with the radial trunk.

[0013] As an optional technical solution for the radius locking device, the radius locking device also includes a hooking piece, one end of which can be hooked to the end of the first bone screw, and the other end can extend into the distal end of the radius and hooked to the distal end of the radius to fix the distal end of the radius to the locking plate.

[0014] As an optional technical solution of the radius locking device, the hooking member includes two hooking flaps arranged in parallel, one end of the two hooking flaps are connected to each other and bent into an arc shape to be hooked to the end of the first bone screw.

[0015] As an optional technical solution of the radius locking device, the other ends of the two hooking flaps are bent to form a hook portion, and the hook portion can extend into the distal end of the radius and be hooked with the distal end of the radius.

[0016] As an optional technical solution of the radius locking device, the locking plate is made of titanium alloy TC4 material.

[0017] Beneficial effects of the utility model:

[0018] The utility model provides a radius locking device, comprising a locking plate, the locking plate comprising a first locking portion and a second locking portion, the first locking portion and the second locking portion being connected to each other; the first locking portion comprising two locking flaps, the two locking flaps being arranged at an angle and being provided with a plurality of first fixing holes, the first bone screw being able to pass through the first fixing holes and fixing the first locking portion to the distal end of the radius; the two locking flaps being able to bend respectively to change their own shapes, so as to fit the distal end of the radius; the second locking portion being provided with a plurality of second fixing holes at intervals, the second bone screw being able to pass through the second fixing holes and fixing the second locking portion to the main trunk of the radius. According to different fracture patients and fracture degrees, the two locking flaps can be used separately and bend to change their shapes, so as to improve the versatility of the radius locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 It is a schematic structural diagram of a radius locking device provided in an embodiment of the utility model.

[0021] In the figure:

[0022] 10. Locking plate; 11. First fixing hole; 12. Second fixing hole;

[0023] 21. a first bone screw; 22. a second bone screw;

[0024] 30. Connecting parts. DETAILED DESCRIPTION

[0025] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0026] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0027] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0028] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0029] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0030] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0031] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0032] In the prior art, the main treatment method is to implant a locking plate or an osteotomy plate. However, the traditional locking plates or osteotomy plates have fixed specifications and sizes, which have limitations and cannot be adapted for different fracture patients. Therefore, the requirements for the doctors performing the surgery are high and the treatment effect is not significant.

[0033] To solve the above problems, this embodiment provides a radial locking device, see Figure 1 The invention comprises a locking plate 10, wherein the locking plate 10 comprises a first locking part and a second locking part, wherein the first locking part and the second locking part are connected to each other; the first locking part comprises two locking flaps, which are arranged at an angle and are provided with a plurality of first fixing holes 11, wherein a first bone screw 21 can pass through the first fixing hole 11 and fix the first locking part to the distal end of the radius; the two locking flaps can be bent to change their shapes respectively so as to fit the distal end of the radius (injured part); a plurality of second fixing holes 12 are arranged at intervals on the second locking part, wherein a second bone screw 22 can pass through the second fixing hole 12 and fix the second locking part to the main trunk of the radius. According to different fracture patients and fracture degrees, the two locking flaps can be used separately and bent to change their shapes to improve the versatility of the radius locking device.

[0034] Furthermore, the locking plate 10 is made of titanium alloy TC4 material, so that the first locking portion can be bent to change shape and angle to adapt to the angle of the distal radial joint of different patients, thereby improving the versatility of the radial locking device.

[0035] Furthermore, the first fixing hole 11 is set as a threaded hole, and the first bone screw 21 can be screwed with the first fixing hole 11 and the distal end of the radius in sequence to fix the first locking portion to the distal end of the radius. In this embodiment, three first fixing holes 11 are respectively provided on the two locking flaps. Specifically, the width of one end of the locking flap connected to the second locking portion is smaller, and the width of the other end is larger. Since the width of the distal end of the radius is larger, the end of the locking flap with a larger width can better fit the distal end of the radius, thereby increasing the reliability of fixing the distal end of the radius.

[0036] Furthermore, an arc groove is provided between the second fixing hole 12 and the side of the second locking portion away from the main trunk of the radius, and the arc groove can accommodate the end of the second bone screw 22, so that the end surface of the end is flush with or recessed on the side of the second locking portion away from the main trunk of the radius. The end surface of the end of the second bone screw 22 is flush with or recessed in the second locking portion, which can reduce the contact area between the second bone screw 22 and human tissue and reduce the discomfort of the patient during the recovery process of the radius.

[0037] In this embodiment, in order to increase the versatility of the second locking portion, the second fixing hole 12 is set as an adjustable hole. Specifically, there are three solutions:

[0038] Solution 1: The second fixing hole 12 is configured as a long hole, and the second bone screw 22 can change the screwing position in the second fixing hole 12 to change the screwing position with the radial trunk.

[0039] Solution 2: The second fixing hole 12 is configured as two intersecting circular holes, and the second bone screw 22 can be selectively screwed with the two circular holes to change the screwing position with the radial trunk.

[0040] Solution three: The second fixing hole 12 is configured as a cross-shaped circular hole and a long hole, and the second bone screw 22 can be screwed with the circular hole or at any position of the long hole to change the screwing position with the radial trunk.

[0041] All three schemes can change the screwing position of the second bone screw 22 on the radial trunk. When multiple second bone screws 22 are used, the spacing between the multiple second bone screws 22 can also be adjusted, so as to use the least number of second bone screws 22 as possible to fix the second locking part and the radial trunk.

[0042] Furthermore, the radius locking device also includes a hooking member 30, one end of which can be hooked to the end of the first bone screw 21, and the other end of which can extend into the distal end of the radius and hook with the distal end of the radius, so as to fix the distal end of the radius to the locking plate 10. In this embodiment, the hooking member 30 includes two hooking flaps arranged in parallel, one end of the two hooking flaps is connected to each other and bent into an arc shape, so as to hook with the end of the first bone screw 21. The other ends of the two hooking flaps are bent to form a hook portion, which can extend into the distal end of the radius and hook with the distal end of the radius. The hooking member 30 can fix small bone fragments to the first locking portion, thereby improving the fixing effect on the injured part. In other embodiments, the hooking member 30 can be set as a single hooking flap, as long as it can achieve hooking the end of the first bone screw 21 and the distal end of the radius.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A radial locking device, characterized in that: include: A locking plate (10), the locking plate (10) comprising a first locking portion and a second locking portion, the first locking portion and the second locking portion being connected to each other; The first locking portion comprises two locking flaps, the two locking flaps are arranged at an angle and are provided with a plurality of first fixing holes (11), the first bone screw (21) can pass through the first fixing hole (11) and fix the first locking portion to the distal end of the radius; the two locking flaps can be bent respectively to change their own shapes so as to fit the distal end of the radius; A plurality of second fixing holes (12) are arranged at intervals on the second locking portion, and a second bone screw (22) can pass through the second fixing hole (12) to fix the second locking portion to the radial trunk.

2. The radial locking device according to claim 1, characterized in that: The first fixing hole (11) is configured as a threaded hole, and the first bone screw (21) can be screwed to the first fixing hole (11) and the distal end of the radius in sequence, so as to fix the first locking portion to the distal end of the radius.

3. The radial locking device according to claim 1, characterized in that: An arcuate groove is provided between the second fixing hole (12) and the side of the second locking portion away from the radial trunk, and the arcuate groove can accommodate the end of the second bone screw (22) so that the end surface of the end is flush with or recessed on the side of the second locking portion away from the radial trunk.

4. The radial locking device according to claim 1, characterized in that: The second fixing hole (12) is configured as a long hole, and the second bone screw (22) can change the screw connection position in the second fixing hole (12) to change the screw connection position with the radial trunk.

5. The radial locking device according to claim 1, characterized in that: The second fixing hole (12) is configured as two intersecting circular holes, and the second bone screw (22) can be selectively screwed with the two circular holes to change the screwing position with the radial trunk.

6. The radial locking device according to claim 1, characterized in that: The second fixing hole (12) is configured as a cross-shaped circular hole and a long hole, and the second bone screw (22) can be screwed with the circular hole or at any position of the long hole to change the screwing position with the radial trunk.

7. The radial locking device according to any one of claims 1 to 6, characterized in that: The radius locking device also includes a hooking member (30), one end of which can be hooked to the end of the first bone screw (21), and the other end of which can extend into the distal end of the radius and be hooked to the distal end of the radius to fix the distal end of the radius to the locking plate (10).

8. The radial locking device according to claim 7, characterized in that: The hooking member (30) comprises two hooking flaps arranged in parallel, one end of the two hooking flaps being connected to each other and bent into an arc shape so as to be hooked to the end of the first bone screw (21).

9. The radial locking device according to claim 8, characterized in that: The other ends of the two hooking flaps are bent to form a hook portion, and the hook portion can extend into the distal end of the radius and be hooked with the distal end of the radius.

10. The radial locking device according to any one of claims 1 to 6, characterized in that: The locking plate (10) is made of titanium alloy TC4 material.

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