CN116650088A - Distal radius plate and distal radius plate system - Google Patents
Distal radius plate and distal radius plate system Download PDFInfo
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- CN116650088A CN116650088A CN202310923662.5A CN202310923662A CN116650088A CN 116650088 A CN116650088 A CN 116650088A CN 202310923662 A CN202310923662 A CN 202310923662A CN 116650088 A CN116650088 A CN 116650088A
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- 238000002513 implantation Methods 0.000 abstract description 11
- 210000000623 ulna Anatomy 0.000 description 10
- 210000000988 bone and bone Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000004872 soft tissue Anatomy 0.000 description 4
- 238000003776 cleavage reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 206010037802 Radius fracture Diseases 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present application relates to a distal radius plate and distal radius plate system, the distal radius plate comprising: the main part and distal end portion, the main part extends along the longitudinal direction, the distal end portion is followed the longitudinal direction locates the one end of main part, the distal end portion includes lateral arrangement's ulnar portion and radial portion, the ulnar portion deviates from the distance between the one end of radial portion with the central longitudinal section of main part is L1, the radial portion deviates from the one end of ulnar portion with the distance between the central longitudinal section of main part is L2, wherein L1 > L2. The radius distal plate has reasonable structural design, better matching degree with radius and higher reliability after implantation.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a radius distal plate and a radius distal plate system.
Background
Distal radius fractures are a relatively common fracture type of the upper limb, but about 30% of distal radius fracture patients have poor post-healing function and anatomic results. The above problems have been found to be associated with reduction losses due to a mismatch between the bone plate and the radius. In the related art, the radian setting design or the width design of the bone plate is unreasonable, so that the problem that the installation positions of the screws on the bone plate and the radius are poor or cleavage occurs is solved, and the reliability of the bone plate after implantation is reduced.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent.
Therefore, the embodiment of the application provides the radius distal plate which has reasonable structural design, better matching degree with radius and higher reliability after implantation.
Embodiments of the present application also provide a distal radius plate system.
The radius distal plate of the embodiment of the present application includes: a body portion extending in a longitudinal direction; the distal end portion is arranged at one end of the main body portion along the longitudinal direction, the distal end portion comprises a lateral side portion and a radial side portion which are transversely arranged, the distance between one end of the lateral side portion, which is away from the radial side portion, and the central longitudinal section of the main body portion is L1, and the distance between one end of the radial side portion, which is away from the lateral side portion, and the central longitudinal section of the main body portion is L2, wherein L1 is more than L2.
According to the radius distal end plate provided by the embodiment of the application, the distance L1 between the end of the ulna part, which is far away from the ulna part, and the central longitudinal section of the main body part is larger than the distance L2 between the end of the ulna part, which is far away from the ulna part, and the central longitudinal section of the main body part, so that the matching degree of the radius distal end plate and the radius of a human body is improved by properly increasing the transverse dimension of the ulna part, the reliability of the radius distal end plate and the radius of the human body when the radius distal end plate is connected with the radius of the human body through screws is higher, and the problems of insufficient mechanical strength caused by the over-wide transverse dimension of the distal end part to surrounding soft tissues and the over-narrow transverse dimension of the distal end part are solved. Therefore, the radius distal end plate provided by the embodiment of the application has the advantages of reasonable structural design, better matching degree with radius and higher reliability after implantation.
In some embodiments, 1.0 < L1/L2.ltoreq.1.36.
In some embodiments, the lateral portion comprises a lateral neck portion and a lateral head portion connected, the lateral head portion extends along a first arc, the lateral head portion extends along a second arc, an included angle between a tangent line of the first arc and a longitudinal direction of the main body portion is θ1, an included angle between a tangent line of the second arc and the longitudinal direction of the main body portion is θ2, and θ1 > θ2 in a same horizontal plane orthogonal to a thickness direction of the main body portion.
In some embodiments, 5.ltoreq.θ1- θ2.ltoreq.23° is in the same horizontal plane orthogonal to the thickness direction of the body portion.
In some embodiments, the ulnar neck extends along a third arc having an angle θ3, 8+.θ1- θ3+.19° between a tangent to the third arc and the longitudinal direction of the body portion.
In some embodiments, the ulnar portion comprises an ulnar neck portion and an ulnar head portion connected, the ulnar portion comprises a radial neck portion and a radial head portion connected, the ulnar head portion extends along a first arc, the radial head portion and the radial neck portion both extend along a second arc, the ulnar neck portion extends along a third arc, an angle between a tangent line of the first arc and a longitudinal direction of the main body portion is θ1, and an angle range of θ1 is 21.2 ° - θ1 is less than or equal to 47.9 °; and/or an included angle between a tangent line of the second arc line and the longitudinal direction of the main body part is theta 2, wherein the angle range of theta 2 is more than or equal to 10.5 degrees and less than or equal to 32.3 degrees; and/or, an included angle between a tangent line of the third arc line and the longitudinal direction of the main body part is theta 3, and the angle range of theta 3 is 9.2 degrees or more and is not more than 32.0 degrees or less.
In some embodiments, the ulnar portion comprises an ulnar neck and an ulnar head connected, the ulnar head extends along a first arc, the ulnar head and the ulnar neck each extend along a second arc, the ulnar neck extends along a third arc, an angle between a tangent line of the first arc and a longitudinal direction of the body portion is θ1, an angle between a tangent line of the second arc and the longitudinal direction of the body portion is θ2, an angle between a tangent line of the third arc and the longitudinal direction of the body portion is θ3, θ1 is X1, θ2 is Y1, and X1 and Y1 satisfy: y1=k1x1+b1, the range of values of k1 satisfies: k1 is more than or equal to 0.32 and less than or equal to 0.56, and the value range of b1 is more than or equal to-10.0 and less than or equal to 23.2; and/or, the theta 3 is X2, the theta 2 is Y1, and the X2 and the Y1 satisfy: y1=k2x2+b2, the range of values of k2 satisfies: k2 is more than or equal to 0.51 and less than or equal to 0.72, and the value range of b2 is more than or equal to-8.7 and less than or equal to 26.8.
In some embodiments, the ulnar portion comprises an ulnar neck portion and an ulnar head portion that are connected, the ulnar head portion extends along a first arc, the ulnar head portion and the ulnar neck portion each extend along a second arc, the ulnar neck portion extends along a third arc, an angle between a tangent line of the first arc and a longitudinal direction of the body portion is θ1, an angle between a tangent line of the second arc and a longitudinal direction of the body portion is θ2, an angle between a tangent line of the third arc and a longitudinal direction of the body portion is θ3, and as a lateral dimension of the distal radius plate increases, at least one of a ratio of L1/L2, θ1, θ2, and θ3 of the distal radius plate gradually increases.
In some embodiments, the distal radius plate has a plurality of attachment holes disposed thereon, the attachment holes being located only on the ulnar head portion, the radial head portion, and the body portion.
A distal radius plate system according to another embodiment of the present application comprises a plurality of distal radius plates, which are any of the embodiments of the present application, the plurality of distal radius plates having a gradually increasing size.
According to the radius distal plate system provided by the embodiment of the application, the distance L1 between the end of the ulna part, which is far away from the ulna part, and the central longitudinal section of the main body part is larger than the distance L2 between the end of the ulna part, which is far away from the ulna part, and the central longitudinal section of the main body part, so that the matching degree of the radius distal plate and the radius of a human body is improved by properly increasing the transverse dimension of the ulna part, the reliability of the radius distal plate and the radius of the human body when the radius distal plate is connected by a screw is higher, and the problems of insufficient mechanical strength caused by the over-wide transverse dimension of the distal part to surrounding soft tissues and the over-narrow transverse dimension of the distal part are solved.
In addition, because the radius distal end plate system comprises a plurality of radius distal end plates, the size of the plurality of radius distal end plates is gradually increased, so that the radius distal end plates with different models can be selected for patients with different age groups or different body types, the matching degree of the radius distal end plates and the radius of a human body is higher, and the implantation effect is better.
In some embodiments, the plurality of distal radius plates comprises at least a first distal radius plate and a second distal radius plate, the distal portion of the first distal radius plate having a lateral dimension greater than the lateral dimension of the distal portion of the second distal radius plate, the ratio of L1/L2 of the first distal radius plate being greater than the ratio of L1/L2 of the second distal radius plate; and/or the ulnar part comprises an ulnar neck part and an ulnar head part which are connected, the ulnar head part extends along a first arc, the ulnar head part and the ulnar neck part both extend along a second arc, the ulnar neck part extends along a third arc, an included angle between a tangent line of the first arc and the longitudinal direction of the main body part is theta 1, an included angle between a tangent line of the second arc and the longitudinal direction of the main body part is theta 2, an included angle between a tangent line of the third arc and the longitudinal direction of the main body part is theta 3, and in the same horizontal plane orthogonal to the thickness direction of the main body part, theta 1 of the first radius distal plate is larger than theta 1 of the second radius distal plate; in the same horizontal plane orthogonal to the thickness direction of the main body, θ2 of the first radius distal plate is greater than θ2 of the second radius distal plate; in the same horizontal plane orthogonal to the thickness direction of the main body portion, θ3 of the first radius distal plate is greater than θ3 of the second radius distal plate.
In some embodiments, the plurality of distal radius plates includes a first group, a second group, and a third group, each group having at least one distal radius plate, L1/L2 of the distal radius plates in the first group satisfying 1.0 < L1/L2.ltoreq.1.07, L1/L2 of the distal radius plates in the second group satisfying 1.0 < L1/L2.ltoreq.1.18, and L1/L2 of the distal radius plates in the third group satisfying 1.0 < L1/L2.ltoreq.1.26.
Drawings
Fig. 1 is a front view of a distal radius plate according to an embodiment of the present application.
Fig. 2 is a side view of a distal radius plate according to an embodiment of the application.
Fig. 3 is a side view of another perspective of a distal radius plate according to an embodiment of the application.
Fig. 4 is a side view of an embodiment of the application in an installed position of the distal radius plate with the radius of the human body.
Fig. 5 is an installation side view of a distal radius plate according to an embodiment of the present application from another perspective with the radius of the human body.
Reference numerals:
1. a distal radius plate;
11. a main body portion; 12. a distal end portion; 121. a ruler side; 1211. neck of ruler side; 1212. a ruler-side head; 122. a radial portion; 1221. a radial neck; 1222. a radial head; 13. a connection hole;
2. a screw;
3. the radius of the human body.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
A distal radius plate and distal radius plate system according to an embodiment of the present application is described below with reference to fig. 1 to 5.
As shown in fig. 1 to 3, the radius distal plate according to an embodiment of the present application includes: a main body portion 11 and a distal end portion 12. The main body portion 11 extends in the longitudinal direction (direction a in fig. 1), the distal end portion 12 is provided at one end of the main body portion 11 in the longitudinal direction, the distal end portion 12 includes a lateral ulnar portion 121 and a radial portion 122 arranged in the lateral direction (direction B in fig. 1), a distance between one end of the lateral ulnar portion 121 facing away from the radial portion 122 and a central longitudinal section m of the main body portion 11 is L1, and a distance between one end of the radial portion 122 facing away from the lateral ulnar portion 121 and the central longitudinal section m of the main body portion 11 is L2, where L1 > L2.
According to the radius distal end plate 1 of the embodiment of the present application, since the distance L1 between the end of the ulnar part 121 facing away from the ulnar part 122 and the central longitudinal section m of the main body part 11 is greater than the distance L2 between the end of the ulnar part 122 facing away from the ulnar part 121 and the central longitudinal section m of the main body part 11, the matching degree of the radius distal end plate 1 and the radius 3 of the human body is improved by properly increasing the transverse dimension of the ulnar part 121, so that the reliability of the connection of the radius distal end plate 1 and the radius 3 of the human body by the screw 2 is higher, and the problem of insufficient mechanical strength caused by the over-wide transverse dimension of the distal end part 12 to the surrounding soft tissues and the over-narrow transverse dimension of the distal end part 12 is reduced. Therefore, the radius distal plate 1 of the embodiment of the application has reasonable structural design, better matching degree with the radius 3 of the human body and higher reliability after implantation.
Optionally, 1.0 < L1/L2.ltoreq.1.36. For example, the ratio of L1/L2 may be 1.1,1.2,1.3 or 1.36. The present inventors have found through studies that when the ratio of L1/L2 satisfies the above range, the stability of the installation of the screw 2 can be further enhanced to reduce the large cleavage of the screw 2 from the ulnar part 121 and the radial part 122 and to improve the degree of matching of the distal radius plate 1 with the radius 3 of the human body.
It should be noted that, the radius distal plate 1 is not matched with the radian of the radius 3 of the human body, and the mismatch is mainly represented by the mismatch of the radian of the head and the radian of the trunk, the situation that the head is tilted after the body 11 is attached to the head and the body 11 is tilted after the head is attached to the body often occurs clinically, at this time, the radius distal plate 1 needs to be bent to perform anatomic reduction, but in this case, the angle of the hole of the screw 2 is changed, so that the intra-articular screw 2 is placed.
According to the radius distal end plate 1 provided by the embodiment of the application, the ulnar part 121 and the radial part 122 are designed by adopting continuously-changing radians, the ulnar neck 1211 and the radial neck 1221 are fitted with the radian of the neck attached to the neck of the radius, and the ulnar head 1212 and the radial head 1222 are fitted with the radian of the head attached to the head of the radius, so that the matching degree of the radius distal end plate 1 and the radius 3 of a human body can be improved.
Alternatively, as shown in fig. 2 and 3, the ulnar head 1212 extends along a first arc, the radial head 1222 extends along a second arc, the angle between the tangent line of the first arc and the longitudinal direction of the main body 11 is θ1, and the angle between the tangent line of the second arc and the longitudinal direction of the main body 11 is θ2. It is understood that the radii of curvature of the first and second arcs may be constant or may be variable. θ1 > θ2 in the same horizontal plane orthogonal to the thickness direction of the main body 11.
It will be appreciated that the distal tip of the ulnar head 1212 is raised to a greater height than the radial head 1222 than the distal tip 1222, thereby enabling the radius distal plate 1 to conform to the radius 3 of the human body.
Specifically, as shown in FIGS. 2 and 3, 5.ltoreq.θ1 to θ2.ltoreq.16℃in the same horizontal plane orthogonal to the thickness direction (e.g., the C direction in FIG. 1) of the main body portion 11. For example, the difference of θ1- θ2 may be 5 °,8 °,10 °,13 °, or 16 °. Through experimental study, the inventor of the application finds that when the difference value of theta 1-theta 2 is more than or equal to 5 degrees and less than or equal to 23 degrees, the radius far end plate 1 can adapt to the radius radian of most patients, the matching degree of the radius far end plate 1 and the radius 3 of a human body is improved, the problem that the main body part 11 is tilted after the head part of the radius far end plate 1 is attached is prevented, and the implantation effect of the radius far end plate 1 is improved.
In some embodiments, as shown in FIG. 2, the ulnar neck 1211 extends along a third arc having an angle θ3, 8+.θ1- θ3+.ltoreq.19° between the tangent of the third arc and the longitudinal direction of the body portion 11. It will be appreciated that the angle of curvature of the head 1212 and neck 1211 is of differential design, i.e. the angle between the head 1212 and the longitudinal direction of the body 11 is greater than the angle between the neck 1211 and the longitudinal direction of the body 11, and the difference is greater than 8 °. For example, the difference of θ1- θ3 may be 8 °,10 °,12 °,16 °, or 19 °.
Through experimental study, the inventor of the application finds that when the difference value of theta 1-theta 3 is more than or equal to 8 degrees and less than or equal to 19 degrees, the radius far end plate 1 can adapt to the radius radian of most patients, the matching degree of the radius far end plate 1 and the radius 3 of a human body is improved, the problem that the main body part 11 is tilted after the head part of the radius far end plate 1 is attached is prevented, the vast majority of patients do not need to be shaped when using, and the implantation reliability of the radius far end plate 1 is improved.
Alternatively, the angle range of θ1 is 21.2+.θ1+.47.9 °. It will be appreciated that the angle θ1 may be selected between 21.2 ° and 47.9 °. For example, θ1 may be 21.2 °,25 °,30 °,35 °,40 °, or 47.9 °.
Optionally, radial head 1222 and radial neck 1221 both extend along a second arc, and an angle of θ2 ranges from 10.5 ° to θ2 to 32.3 °. It will be appreciated that the angle θ2 may be selected between 10.5 ° and 32.3 °. For example, θ2 may be 10.5 °,15 °,20 °,30 °, or 32.3 °.
Alternatively, the angle range of θ3 is 9.2+.θ3+.32.0. It will be appreciated that the angle θ3 may be selected between 9.2 ° and 32.0 °. For example, θ3 may be 9.2 °,15 °,20 °,30 °, or 32.0 °.
Through experimental study, the inventor of the application finds that when theta 1, theta 2 and theta 3 are selected in the range, the radius far end plate 1 can adapt to the radius radian of most patients, the matching degree of the radius far end plate 1 and the radius 3 of a human body is improved, the problem that the main body part 11 is tilted after the head of the radius far end plate 1 is attached is prevented, most patients do not need to be shaped when using, and the implantation reliability of the radius far end plate 1 is improved.
In some embodiments, as shown in fig. 1, 4 and 5, a plurality of connecting holes 13 are provided on the distal radius plate 1, the connecting holes 13 being located only on the ulnar head 1212, the radial head 1222 and the main body 11. It will be appreciated that the neck portions of the distal radius plate 1 (ulnar neck 1211 and radial neck 1221) are not provided with the connecting holes 13, so that the structural strength of the distal radius plate 1 can be improved, and the risk of breakage of the distal radius plate 1 due to external force can be avoided.
Alternatively, the distal radius plate 1 of the embodiment of the present application may be suitably made of absorbable material, metal, or the like.
The distal radius plate system according to another embodiment of the present application includes a plurality of distal radius plates 1, the distal radius plates 1 being the distal radius plates 1 according to the embodiment of the present application, the plurality of distal radius plates 1 gradually increasing in size, in other words, the plurality of distal radius plates 1 gradually increasing in size.
According to the distal radius plate system of the embodiment of the present application, since the distance L1 between the end of the ulnar portion 121 facing away from the lateral radius portion 122 and the central longitudinal section of the main body portion 11 is greater than the distance L2 between the end of the lateral radius portion 122 facing away from the ulnar portion 121 and the central longitudinal section of the main body portion 11, the matching degree of the distal radius plate 1 and the radius 3 of the human body is improved by properly increasing the lateral dimension of the lateral radius portion 121, so that the reliability of the distal radius plate 1 and the radius 3 of the human body when being connected by the screw 2 is higher, and the problem of insufficient mechanical strength caused by the over-wide lateral dimension of the distal end portion 12 to the surrounding soft tissue and the over-narrow lateral dimension of the distal end portion 12 is reduced.
In addition, since the distal radius plate system includes a plurality of distal radius plates 1, the sizes of the distal radius plates 1 are gradually increased, so that different types of distal radius plates 1 can be selected for patients with different ages or different body types, and the distal radius plates 1 have higher matching degree with the radius 3 of the human body and better implantation effect.
Optionally, the plurality of distal radius plates 1 includes at least a first distal radius plate 1 and a second distal radius plate 1, the lateral dimension of the distal end portion 12 of the first distal radius plate 1 being greater than the lateral dimension of the distal end portion 12 of the second distal radius plate 1, the ratio of L1/L2 of the first distal radius plate 1 being greater than the ratio of L1/L2 of the second distal radius plate 1. It will be appreciated that as the transverse dimension of the distal radius plate increases, the ratio of L1/L2 of the distal radius plate also increases gradually.
The inventor of the present application found through experimental study that, when the lateral dimensions of the distal end portions 12 of the plurality of distal radius plates 1 are gradually increased, the ratio of L1/L2 is also required to be increased, so that the degree of matching of the distal radius plates 1 with the corresponding radius can be further improved.
In one example, the plurality of distal radius plates 1 are divided into a first group, a second group, and a third group, each group having one or more distal radius plates 1, L1/L2 of the distal radius plates 1 in the first group satisfying 1.0 < L1/L2.ltoreq.1.07, L1/L2 of the distal radius plates 1 in the second group satisfying 1.0 < L1/L2.ltoreq.1.18, and L1/L2 of the distal radius plates 1 in the third group satisfying 1.0 < L1/L2.ltoreq.1.26.
It will be appreciated that the L1/L2 of the first set is also selected between 1.0 and 1.07, the L1/L2 of the second set is also selected between 1.0 and 1.18, and the L1/L2 of the second set is also selected between 1.0 and 1.26.
Alternatively, the θ1 of the first radial distal plate 1 is larger than the θ1 of the second radial distal plate 1 in the same horizontal plane orthogonal to the thickness direction of the main body portion 11. The first distal radius plate 1 has a theta 2 greater than a theta 2 of the second distal radius plate 1, and the first distal radius plate 1 has a theta 3 greater than a theta 3 of the second distal radius plate 1. It will be appreciated that as the lateral dimensions of the distal portions 12 of the plurality of distal radius plates 1 are progressively increased, the dimensions θ1, θ2, and θ3 are progressively increased to further increase the matching of the different distal radius plates 1 to the corresponding radius.
Further, the inventors found through studies that θ1 and θ2 satisfy the following linear relationship. Specifically, let θ1 be X1, θ2 be Y1, X1 and Y1 satisfy: y1=k1x1+b1, the range of values of k1 satisfies: k1 is more than or equal to 0.32 and less than or equal to 0.56, and the value range of b1 is more than or equal to-10.0 and less than or equal to 23.2.
Further, the inventors found through studies that θ2 and θ3 satisfy the following linear relationship. Let θ3 be X2, let θ2 be Y1, X2 and Y1 satisfy: y1=k2x2+b2, the range of values of k2 satisfies: k2 is more than or equal to 0.51 and less than or equal to 0.72, and the value range of b2 is more than or equal to-8.7 and less than or equal to 26.8.
The inventors of the present application have calculated θ1, θ2, and θ3 by y1=k1x1+b1 and y1=k2x2+b2, as described above, and have reduced cases of lateral cleavage of the distal radius plate 1 to 0%, and have a proper curvature of the head and body portions 11 of the distal radius plate 1 to be more closely attached to the radius. When the series of distal radius end plates 1 are designed, the distal radius end plates 1 which are clinically needed to be shaped are reduced to be below 10%, and the implantation effect of the distal radius end plates 1 is further improved.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the application.
Claims (12)
1. A distal radius plate comprising:
a body portion extending in a longitudinal direction;
the distal end portion is arranged at one end of the main body portion along the longitudinal direction, the distal end portion comprises a lateral side portion and a radial side portion which are transversely arranged, the distance between one end of the lateral side portion, which is away from the radial side portion, and the central longitudinal section of the main body portion is L1, and the distance between one end of the radial side portion, which is away from the lateral side portion, and the central longitudinal section of the main body portion is L2, wherein L1 is more than L2.
2. The distal radius plate according to claim 1, wherein 1.0 < L1/L2 is 1.36.
3. The distal radius plate of claim 1, wherein the lateral portion comprises a lateral neck portion and a lateral head portion connected to each other, the lateral head portion extends along a first arc, the lateral head portion extends along a second arc, an angle between a tangent line of the first arc and a longitudinal direction of the main body portion is θ1, an angle between a tangent line of the second arc and the longitudinal direction of the main body portion is θ2, and θ1 > θ2 is in the same horizontal plane orthogonal to a thickness direction of the main body portion.
4. A radius distal plate according to claim 3, wherein 5 ° - θ1- θ2 +.23° are in the same horizontal plane orthogonal to the thickness direction of the body portion.
5. A radius distal disc according to claim 3, wherein the ulnar neck extends along a third arc, the angle between the tangent to the third arc and the longitudinal direction of the body portion being θ3,8° θ1- θ3+.19°.
6. The distal radius plate of claim 1, wherein the lateral portion comprises an associated lateral neck and lateral head, wherein the lateral head extends along a first arc, wherein the lateral head and the lateral neck each extend along a second arc, wherein the lateral neck extends along a third arc,
an included angle between a tangent line of the first arc line and the longitudinal direction of the main body part is theta 1, and the angle range of theta 1 is 21.2 degrees or more and is not more than 47.9 degrees or less;
and/or an included angle between a tangent line of the second arc line and the longitudinal direction of the main body part is theta 2, wherein the angle range of theta 2 is more than or equal to 10.5 degrees and less than or equal to 32.3 degrees;
and/or, an included angle between a tangent line of the third arc line and the longitudinal direction of the main body part is theta 3, and the angle range of theta 3 is 9.2 degrees or more and is not more than 32.0 degrees or less.
7. The distal radius plate of claim 1, wherein the lateral portion comprises a lateral neck portion and a lateral head portion connected to each other, the lateral head portion extends along a first arc, the lateral head portion and the lateral neck portion each extend along a second arc, the lateral neck portion extends along a third arc, an angle θ1 between a tangent line of the first arc and a longitudinal direction of the main body portion, an angle θ2 between a tangent line of the second arc and the longitudinal direction of the main body portion, an angle θ3 between a tangent line of the third arc and the longitudinal direction of the main body portion,
and the theta 1 is X1, the theta 2 is Y1, and the X1 and the Y1 satisfy the following conditions: y1=k1x1+b1, the range of values of k1 satisfies: k1 is more than or equal to 0.32 and less than or equal to 0.56, and the value range of b1 is more than or equal to-10.0 and less than or equal to 23.2;
and/or, the theta 3 is X2, the theta 2 is Y1, and the X2 and the Y1 satisfy: y1=k2x2+b2, the range of values of k2 satisfies: k2 is more than or equal to 0.51 and less than or equal to 0.72, and the value range of b2 is more than or equal to-8.7 and less than or equal to 26.8.
8. The distal radius plate of claim 1, wherein the lateral portion comprises a lateral neck portion and a lateral head portion connected to each other, the lateral head portion extends along a first arc, the lateral head portion and the lateral neck portion each extend along a second arc, the lateral neck portion extends along a third arc, an angle θ1 between a tangent line of the first arc and a longitudinal direction of the main body portion, an angle θ2 between a tangent line of the second arc and the longitudinal direction of the main body portion, an angle θ3 between a tangent line of the third arc and the longitudinal direction of the main body portion,
as the lateral dimension of the distal radius plate increases, at least one of the ratio of L1/L2, the θ1, the θ2, and the θ3 of the distal radius plate gradually increases.
9. The distal radius plate according to any one of claims 1-8, wherein a plurality of connecting holes are provided on the distal radius plate, the connecting holes being located only on the ulnar head, the lateral radius head and the main body.
10. A distal radius plate system, comprising: a plurality of distal radius plates, said distal radius plates being as defined in any one of claims 1-9, said plurality of distal radius plates having progressively larger dimensions.
11. The distal radius plate system according to claim 10, wherein the plurality of distal radius plates comprises at least a first distal radius plate and a second distal radius plate, the distal portion of the first distal radius plate having a lateral dimension greater than the lateral dimension of the distal portion of the second distal radius plate, the ratio of L1/L2 of the first distal radius plate being greater than the ratio of L1/L2 of the second distal radius plate;
and/or the ulnar part comprises an ulnar neck part and an ulnar head part which are connected, the ulnar head part extends along a first arc, the ulnar head part and the ulnar neck part both extend along a second arc, the ulnar neck part extends along a third arc, the included angle between the tangent line of the first arc and the longitudinal direction of the main body part is theta 1, the included angle between the tangent line of the second arc and the longitudinal direction of the main body part is theta 2, the included angle between the tangent line of the third arc and the longitudinal direction of the main body part is theta 3,
in the same horizontal plane orthogonal to the thickness direction of the main body portion, θ1 of the first radius distal plate is greater than θ1 of the second radius distal plate;
in the same horizontal plane orthogonal to the thickness direction of the main body, θ2 of the first radius distal plate is greater than θ2 of the second radius distal plate;
in the same horizontal plane orthogonal to the thickness direction of the main body portion, θ3 of the first radius distal plate is greater than θ3 of the second radius distal plate.
12. The distal radius plate system according to claim 11, wherein a plurality of said distal radius plates comprises a first set, a second set, and a third set, each set having at least one distal radius plate,
L1/L2 of the distal radius plate in the first group satisfies 1.0 < L1/L2 < 1.07,
L1/L2 of the distal radius plate in the second group satisfies 1.0 < L1/L2 < 1.18,
the L1/L2 of the distal radius plate in the third group satisfies 1.0 < L1/L2 < 1.26.
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| CN202310923662.5A CN116650088B (en) | 2023-07-26 | 2023-07-26 | Distal radius plate and distal radius plate system |
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| CN202310923662.5A CN116650088B (en) | 2023-07-26 | 2023-07-26 | Distal radius plate and distal radius plate system |
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