Bone fracture plate
By designing a avoidance groove on the bone plate, the problem of difficulty in inserting suture needles in orthopedic implant surgery is solved, and the rapid accuracy and convenience of the surgery are improved.
Patent Information
- Application Number
- CN202323048893.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-11-08
AI Technical Summary
During orthopedic implantation surgery, the opening of the patient's implanted bone plate is small, which makes it impossible for medical staff to quickly and accurately insert the suture needle into the through hole of the bone plate, causing inconvenience to the surgery.
A bone junction plate is designed to include through holes and suture grooves extending between the upper and lower surfaces, and a avoidance groove is formed on both sides of the through holes. It is used to avoid suture needles, providing guidance and helping medical staff. Quickly and accurately insert suture needles in limited operating space.
Through the design of the avoidance groove, the speed and accuracy of medical staff inserting suture needles in a limited space has been significantly improved, and the implantation process of bone plates has been simplified.
Smart Images
Figure CN222265368U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of medical devices, and in particular to a bone fracture plate. Background Art
[0002] In orthopedic implant surgery, after the bone plate is implanted in the patient's body, it is usually necessary to use a suture needle with a thread to pass through the through hole of the bone plate (such as the Kirschner wire hole) and the suture groove below the bone plate in an oblique direction and then return to the top of the bone plate to sew the ligament and the bone plate together. Among them, for most minimally invasive surgeries, the opening of the position where the patient implants the bone plate is small, and the operating space of the medical staff is limited. It is impossible to quickly and accurately insert the suture needle into the through hole, which causes inconvenience to the medical staff during the operation. Utility Model Content
[0003] An embodiment of the present application provides a bone plate, which aims to solve the problem that the opening of the bone plate for bone grafting is small and medical staff cannot quickly and accurately insert the suture needle into the through hole of the bone plate.
[0004] The embodiment of the present application provides a bone fracture plate, the bone fracture plate comprising an inner surface, and an upper surface and a lower surface opposite to each other, the inner surface extending between the upper surface and the lower surface, the inner surface enclosing a through hole extending along a first direction, the lower surface comprising a limiting surface, the limiting surface enclosing a suture groove, one end of the suture groove being connected to the through hole, and the other end of the suture groove extending to the edge of the lower surface;
[0005] Wherein, the bone plate also includes an avoidance surface, the avoidance surface encloses an avoidance groove, the avoidance groove extends from the upper surface to the inner surface, and the avoidance groove is used to avoid suture needles.
[0006] In some embodiments, the avoidance groove and the suture groove are distributed on both radial sides of the through hole.
[0007] In some embodiments, the depth of the avoidance groove gradually decreases in a direction away from the through hole.
[0008] In some embodiments, the avoidance groove extends from the upper surface to the inner surface along a second direction, and the second direction is disposed at an acute angle to the first direction.
[0009] In some embodiments, the angle formed by the second direction and the first direction is greater than or equal to 20°; the angle formed by the second direction and the first direction is less than or equal to 70°.
[0010] In some embodiments, the maximum depth of the avoidance groove is greater than or equal to 0.55 mm; the maximum depth of the avoidance groove is less than or equal to 6 mm.
[0011] In some embodiments, the avoidance surface is an arcuate surface, the generatrix of the arcuate surface is parallel to the second direction, and the second direction is set at an acute angle to the first direction; the maximum depth of the avoidance groove is greater than or equal to the radius of the avoidance surface; the maximum depth of the avoidance groove is less than the thickness of the bone plate.
[0012] In some embodiments, the avoidance surface is an arcuate surface, the generatrix of the arcuate surface is parallel to the second direction, and the second direction is set at an acute angle to the first direction; the maximum depth of the avoidance groove is greater than or equal to the radius of the avoidance surface, and the diameter of the avoidance groove is greater than or equal to the diameter of the suture needle.
[0013] In some embodiments, the difference between the diameter of the avoidance groove and the diameter of the suture needle is greater than or equal to 0.1 mm; the difference between the diameter of the avoidance groove and the diameter of the suture needle is less than or equal to 0.6 mm.
[0014] In some embodiments, the avoidance surface is an arcuate surface, the generatrix of the arcuate surface is parallel to the second direction, and the second direction is set at an acute angle to the first direction; the diameter of the avoidance groove is greater than or equal to 1.1 mm; the diameter of the avoidance groove is less than or equal to 2.6 mm.
[0015] In some embodiments, the boundary between the limiting surface and the inner surface is an arc transition.
[0016] The bone plate provided in the embodiment of the present application forms an avoidance groove extending from the upper surface to the inner surface of the through hole, so that when the suture needle carries the thread through the through hole of the bone plate in an inclined direction, the avoidance groove can avoid the suture needle and play a certain guiding role for the suture needle, so that medical staff can insert the suture needle into the through hole of the bone plate more quickly and accurately within a limited operating space, making the bone plate implantation surgery more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.
[0018] Figure 1 A partial perspective view of an embodiment of a bone fracture plate provided by an embodiment of the present application;
[0019] Figure 2 for Figure 1 Cross-sectional view along AA direction.
[0020] Bone plate 100; upper surface 110; lower surface 120; inner surface 130; through hole 131; limiting surface 140; suture groove 141; avoidance surface 150; avoidance groove 151; junction 160; first direction X; second direction Y. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0024] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0025] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific processes and examples of materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.
[0026] The present application provides a bone fracture plate, which is described in detail below.
[0027] Figure 1 A partial perspective view of an embodiment of a bone fracture plate provided by an embodiment of the present application. Figure 2 for Figure 1 The cross-sectional view along the AA direction. Figure 1 and Figure 2 As shown, the bone plate 100 includes a relative upper surface 110 and a lower surface 120. When the bone plate 100 is implanted in the patient's body, the lower surface 120 of the bone plate 100 faces the patient's bones, and the upper surface 110 of the bone plate 100 is away from the patient's bones. The bone plate 100 also includes an inner surface 130, which extends between the upper surface 110 and the lower surface 120, and the inner surface 130 is surrounded by a through hole 131 extending along the first direction X. Among them, the through hole 131 can be a Kirschner wire hole for Kirschner wire to pass through. Of course, the through hole 131 can also be a hole on the bone plate 100 that plays other roles or functions, which can be determined according to the structure and position of the through hole 131.
[0028] The bone plate 100 further includes a threaded hole extending between the upper surface 110 and the lower surface 120 , and the threaded hole is used for a screw to pass through and be implanted into the patient's bone, thereby connecting the bone plate 100 to the patient's bone.
[0029] Continue to refer to Figure 1 and Figure 2 The lower surface 120 of the bone plate 100 includes a limiting surface 140, and the limiting surface 140 encloses a suture groove 141. One end of the suture groove 141 is connected to the through hole 131, and the other end of the suture groove 141 extends to the edge of the lower surface 120. Therefore, after the bone plate 100 is implanted in the patient's body, the surgeon can use a suture needle (not shown in the figure) with a thread (not shown in the figure) from the top of the bone plate 100 through the through hole 131 of the bone plate 100 and the suture groove 141 below the bone plate 100 and then return to the top of the bone plate 100 to sew the ligament or other tissues with the bone plate 100.
[0030] Among them, the surgeon needs the suture needle to carry the thread along the inclined direction (with the Figure 1 and Figure 2 However, for most minimally invasive surgeries, the opening at the location where the bone plate 100 is implanted in the patient is small, and the operating space of the medical staff is limited. It is impossible to quickly and accurately insert the suture needle into the through hole 131, causing inconvenience to the medical staff during the operation.
[0031] In order to solve the above problems, the present application embodiment provides a bone fracture plate 100. Figure 1 and Figure 2 As shown, the bone plate 100 further includes an avoidance surface 150 , which encloses an avoidance groove 151 , and the avoidance groove 151 extends from the upper surface 110 to the inner surface 130 , and the avoidance groove 151 is used to avoid the suture needle.
[0032] The bone plate 100 provided in the embodiment of the present application forms an avoidance groove 151 extending from the upper surface 110 to the inner surface 130 of the through hole 131, so that when the suture needle carries the thread through the through hole 131 of the bone plate 100 in an inclined direction, the avoidance groove 151 can avoid the suture needle and play a certain guiding role for the suture needle, so that medical staff can insert the suture needle into the through hole 131 of the bone plate 100 more quickly and accurately within a limited operating space, making the implantation surgery of the bone plate 100 more convenient.
[0033] In some embodiments, Figure 1 and Figure 2 As shown, the avoidance groove 151 and the suture groove 141 are distributed on both radial sides of the through hole 131. It can be understood that since the suture needle needs to pass through the through hole 131 and the suture groove 141 of the bone plate 100 in an inclined direction, by distributing the avoidance groove 151 and the suture groove 141 on both radial sides of the through hole 131, the avoidance groove 151 can better avoid the suture needle, so that the surgeon can accurately insert the suture needle into the through hole 131 of the bone plate 100 in an inclined direction.
[0034] Specifically, the avoidance groove 151 and the suture groove 141 can be respectively arranged symmetrically with respect to the same reference plane, so that the avoidance groove 151 and the suture groove 141 are accurately distributed on both radial sides of the through hole 131. Among them, the reference plane is parallel to the first direction X and the second direction Y. Of course, the suture groove 141 can also be arranged symmetrically with respect to the reference plane, while the avoidance groove 151 is offset by a certain distance relative to the reference plane. Alternatively, the avoidance groove 151 can also be arranged symmetrically with respect to the reference plane, while the suture groove 141 is offset by a certain distance relative to the reference plane. In addition, the avoidance groove 151 and the suture groove 141 can also be asymmetric structures, and the avoidance groove 151 can play a certain avoidance role for the suture needle when the surgical staff inserts the suture needle into the through hole 131 and the suture groove 141.
[0035] In some embodiments, the depth of the avoidance groove 151 gradually decreases in the direction away from the through hole 131. The depth of the avoidance groove 151 refers to the distance between the avoidance surface 150 enclosing the avoidance groove 151 and the upper surface 110 of the bone plate 100 in the first direction X. By gradually reducing the depth of the avoidance groove 151 in the direction away from the through hole 131, the avoidance groove 151 can be extended more smoothly from the upper surface 110 of the bone plate 100 to the through hole 131, and while having a good guiding effect on the suture needle, the influence on the structural strength of the bone plate 100 is minimized.
[0036] In some embodiments, the avoidance groove 151 may extend from the upper surface 110 to the inner surface 130 along the second direction Y, and the second direction Y is set at an acute angle to the first direction X, so that the depth of the avoidance groove 151 gradually decreases in the direction away from the through hole 131.
[0037] The angle formed by the second direction Y and the first direction X can be greater than or equal to 20°, so as to avoid the avoidance groove 151 being too small in depth, which causes the avoidance groove 151 to fail to avoid or guide the suture needle. The angle formed by the second direction Y and the first direction X can be 25°, 30°, 50°, 60°, etc., which can be determined according to the structure of the bone plate 100 and the suture needle.
[0038] In addition, the angle formed by the second direction Y and the first direction X can be less than or equal to 70° to avoid excessive change in the depth of the avoidance groove 151, which causes the suture needle to be unable to smoothly pass through the avoidance groove 151 and slide into the through hole 131. The angle formed by the second direction Y and the first direction X can be 35°, 45°, 55°, 65°, etc., which can be determined according to the structure of the bone plate 100 and the suture needle.
[0039] In some preferred embodiments, the included angle between the second direction Y and the first direction X can be greater than or equal to 20° and less than or equal to 70°, so that the avoidance groove 151 can provide better guidance and avoidance effects for the suture needle.
[0040] In some embodiments, the maximum depth of the avoidance groove 151 can be greater than or equal to 0.55 mm, so that the avoidance groove 151 has a better avoidance and guiding effect on the suture needle. The maximum depth of the avoidance groove 151 can be 0.6 mm, 0.7 mm, 1 mm, 3 mm, etc., which can be determined according to the structure of the bone plate 100.
[0041] In addition, the maximum depth of the avoidance groove 151 can be less than or equal to 6 mm to prevent the avoidance groove 151 from being too deep and affecting the structural strength of the bone plate 100. The maximum depth of the avoidance groove 151 can be 0.65 mm, 0.75 mm, 1.5 mm, 3.5 mm, 5 mm, etc., depending on the structure of the bone plate 100.
[0042] In a preferred embodiment, the maximum depth of the avoidance groove 151 can be greater than or equal to 0.55 mm and less than or equal to 6 mm, so that the avoidance groove 151 has a better avoidance effect on the suture needle while minimizing the impact on the strength of the bone plate 100.
[0043] like Figure 1 and Figure 2 As shown, the avoidance surface 150 enclosed to form the avoidance groove 151 is an arcuate surface, and the generatrix of the arcuate surface is parallel to the second direction Y. In some embodiments, the maximum depth of the avoidance groove 151 can be greater than or equal to the radius of the avoidance surface 150, so that the avoidance groove 151 has a better avoidance and guiding effect on the suture needle.
[0044] In addition, the maximum depth of the avoidance groove 151 can be made smaller than the thickness of the bone plate 100 to prevent the avoidance groove 151 from being too deep and affecting the structural strength of the bone plate 100. The thickness of the bone plate 100 refers to the distance between the upper surface 110 and the lower surface 120 of the bone plate 100.
[0045] In some embodiments, the diameter of the avoidance groove 151 can be greater than or equal to the diameter of the suture needle to ensure the avoidance and guiding effect of the avoidance groove 151 on the suture needle.
[0046] The difference between the diameter of the avoidance groove 151 and the diameter of the suture needle can be greater than or equal to 0.1 mm, so that there is a sufficient gap between the avoidance groove 151 and the suture needle, which facilitates the insertion of the suture needle into the avoidance groove 151. The difference between the diameter of the avoidance groove 151 and the diameter of the suture needle can be 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc., which can be determined according to the structure of the through hole 131 and the suture needle.
[0047] Alternatively, the diameter of the avoidance groove 151 may be greater than or equal to 1.1 mm, so that there is a sufficient gap between the avoidance groove 151 and the suture needle, so that the suture needle can be inserted into the avoidance groove 151. The diameter of the avoidance groove 151 may be 1.2 mm, 1.3 mm, 1.5 mm, 2 mm, 2.5 mm, etc., depending on the structure of the through hole 131 and the suture needle.
[0048] In addition, the difference between the diameter of the avoidance groove 151 and the diameter of the suture needle can be less than or equal to 0.6 mm, so as to avoid the diameter of the avoidance groove 151 being too large compared to the diameter of the suture needle, which results in the avoidance groove 151 having a small guiding effect on the suture needle and failing to accurately guide the suture needle into the through hole 131. The difference between the diameter of the avoidance groove 151 and the diameter of the suture needle can be 0.25 mm, 0.35 mm, 0.45 mm, 0.55 mm, etc., which can be determined according to the structure of the through hole 131 and the suture needle.
[0049] Alternatively, the diameter of the avoidance groove 151 can be less than or equal to 2.6 mm to avoid the diameter of the avoidance groove 151 being too large compared to the diameter of the suture needle, which results in the avoidance groove 151 having a smaller guiding effect on the suture needle and failing to accurately guide the suture needle into the through hole 131. The diameter of the avoidance groove 151 can be 1.15 mm, 1.35 mm, 1.55 mm, 2.15 mm, 2.45 mm, etc., depending on the structure of the through hole 131 and the suture needle.
[0050] In some preferred embodiments, the difference between the diameter of the avoidance groove 151 and the diameter of the suture needle can be greater than or equal to 0.1 mm and less than or equal to 0.6 mm, so as to ensure the guiding effect of the avoidance groove 151 on the suture needle. Alternatively, the diameter of the avoidance groove 151 can be greater than or equal to 1.1 mm and less than or equal to 2.6 mm, so as to ensure the guiding effect of the avoidance groove 151 on the suture needle.
[0051] In the embodiment of the present application, the avoidance surface 150 enclosing the avoidance groove 151 can be not only an arcuate surface, but also any surface that can avoid the suture needle, such as a curved surface, a rectangular surface, etc. When the avoidance surface 150 is a non-arc surface, the diameter of the avoidance groove 151 is the diameter of the inscribed circle of the cross section of the avoidance surface 150 perpendicular to the second direction Y.
[0052] In some embodiments, Figure 1 and Figure 2 As shown, the boundary 160 between the limiting surface 140 and the inner surface 130 of the bone plate 100 is an arc transition, so as to avoid the problem that the boundary 160 between the limiting surface 140 and the inner surface 130 forms a sharp edge and cuts the suture. Specifically, the boundary 160 between the limiting surface 140 and the inner surface 130 of the bone plate 100 is a curved surface, so as to make the boundary 160 between the limiting surface 140 and the inner surface 130 of the bone plate 100 transition in an arc.
[0053] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0054] The above is a detailed introduction to a bone fracture plate provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.
Claims
1. A bone plate, characterized in that: The bone plate comprises an inner surface, and an upper surface and a lower surface opposite to each other, the inner surface extends between the upper surface and the lower surface, the inner surface encloses a through hole extending along a first direction, the lower surface comprises a limiting surface, the limiting surface encloses a suture groove, one end of the suture groove is connected to the through hole, and the other end of the suture groove extends to the edge of the lower surface; Wherein, the bone plate also includes an avoidance surface, the avoidance surface encloses an avoidance groove, the avoidance groove extends from the upper surface to the inner surface, and the avoidance groove is used to avoid suture needles.
2. The bone fracture plate according to claim 1, characterized in that: The avoidance groove and the suture groove are distributed on both radial sides of the through hole.
3. The bone fracture plate according to claim 1, characterized in that: In a direction away from the through hole, the depth of the avoidance groove gradually decreases.
4. The bone plate according to claim 3, characterized in that: The avoidance groove extends from the upper surface to the inner surface along a second direction, and the second direction is arranged at an acute angle to the first direction.
5. The bone fracture plate according to claim 4, characterized in that: The angle formed by the second direction and the first direction is greater than or equal to 20°; the angle formed by the second direction and the first direction is less than or equal to 70°.
6. The bone fracture plate according to claim 1, characterized in that: The maximum depth of the avoidance groove is greater than or equal to 0.55 mm; the maximum depth of the avoidance groove is less than or equal to 6 mm.
7. The bone fracture plate according to claim 1, characterized in that: The avoidance surface is an arcuate surface, the generatrix of the arcuate surface is parallel to the second direction, and the second direction is set at an acute angle to the first direction; the maximum depth of the avoidance groove is greater than or equal to the radius of the avoidance surface; the maximum depth of the avoidance groove is less than the thickness of the bone plate.
8. The bone fracture plate according to claim 1, characterized in that: The avoidance surface is an arcuate surface, the generatrix of the arcuate surface is parallel to the second direction, and the second direction is set at an acute angle to the first direction; the maximum depth of the avoidance groove is greater than or equal to the radius of the avoidance surface, and the diameter of the avoidance groove is greater than or equal to the diameter of the suture needle.
9. The bone fracture plate according to claim 8, characterized in that: The difference between the diameter of the avoidance groove and the diameter of the suture needle is greater than or equal to 0.1 mm; the difference between the diameter of the avoidance groove and the diameter of the suture needle is less than or equal to 0.6 mm.
10. The bone fracture plate according to claim 1, characterized in that: The avoidance surface is an arc-shaped surface, the generatrix of the arc-shaped surface is parallel to the second direction, and the second direction is set at an acute angle to the first direction; the diameter of the avoidance groove is greater than or equal to 1.1 mm; the diameter of the avoidance groove is less than or equal to 2.6 mm.
11. The bone plate according to any one of claims 1 to 10, characterized in that The boundary between the limiting surface and the inner surface is in an arc transition.