CN221229397U - Wrist joint fusion plate - Google Patents
Wrist joint fusion plate Download PDFInfo
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- CN221229397U CN221229397U CN202322562618.4U CN202322562618U CN221229397U CN 221229397 U CN221229397 U CN 221229397U CN 202322562618 U CN202322562618 U CN 202322562618U CN 221229397 U CN221229397 U CN 221229397U
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- fixing section
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- fixing
- fusion plate
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- 230000004927 fusion Effects 0.000 title claims abstract description 31
- 210000003857 wrist joint Anatomy 0.000 title abstract description 19
- 210000000236 metacarpal bone Anatomy 0.000 claims abstract description 18
- 210000003692 ilium Anatomy 0.000 claims abstract description 14
- 210000003010 carpal bone Anatomy 0.000 claims abstract description 8
- 210000000707 wrist Anatomy 0.000 claims description 17
- 210000000988 bone and bone Anatomy 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000008407 joint function Effects 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 206010028980 Neoplasm Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000006735 Periostitis Diseases 0.000 description 2
- 210000005003 heart tissue Anatomy 0.000 description 2
- 230000000642 iatrogenic effect Effects 0.000 description 2
- 210000001621 ilium bone Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003460 periosteum Anatomy 0.000 description 2
- 206010005969 Bone giant cell tumour Diseases 0.000 description 1
- 206010065687 Bone loss Diseases 0.000 description 1
- 208000018084 Bone neoplasm Diseases 0.000 description 1
- 208000006358 Hand Deformities Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 201000011143 bone giant cell tumor Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application relates to the technical field of medical equipment, and provides a wrist joint fusion plate, which comprises: the first fixing section is used for being fixedly connected with the third metacarpal bone and the carpal bone, and the second fixing section is used for being fixedly connected with the proximal end of the radius and the transplanted ilium; the axis of the first fixed section deviates from the axis of the second fixed section, so that a first included angle is formed between the first fixed section and the second fixed section. By the technical scheme, the fusion angle can be provided for the wrist joint function, so that the recovery of a patient is facilitated.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a wrist joint fusion plate.
Background
The method for reconstructing the distal end bone giant cell tumor and malignant tumor of the radius mainly comprises the steps of resecting the tumor of the distal end of the radius, taking the ilium for bone grafting, transplanting the ilium to the distal end of the radius, and fusing the wrist joint.
Disclosure of utility model
The application aims to provide a wrist joint fusion plate capable of achieving a wrist joint function as a fusion angle.
In order to solve the technical problems, the application adopts the following technical scheme:
The present application provides a wrist fusion plate comprising: a first fixation segment for fixedly connecting with a third metacarpal bone and a carpal bone, and a second fixation segment connected with the first fixation segment for fixedly connecting with a proximal end of a radius and an implanted ilium; the axis of the first fixed section deviates from the axis of the second fixed section, so that a first included angle is formed between the first fixed section and the second fixed section.
As an embodiment, the adjacent complement angle of the first included angle is 20 ° to 30 °.
As an embodiment, the axis of the perpendicular projection of the first fixed section is arranged offset from the axis of the second fixed section.
As an embodiment, the angle formed between the axis of the perpendicular projection of the first fixed section and the axis of the second fixed section is 10 ° to 20 °.
As one embodiment, the width of the first fixing section is gradually narrowed from the connection position with the second fixing section to the direction away from the second fixing section.
As one embodiment, the second fixing section is provided with a plurality of second screw holes at intervals for fixing the radius and the ilium.
As one embodiment, the first fixing section is provided with a plurality of first screw holes for fixing the third metacarpal bone at intervals, the aperture of the first screw holes is smaller than that of the second screw holes, and the aperture of the first screw holes is matched with the third metacarpal bone.
As one embodiment, the first fixing section is further provided with a third screw hole for fixing the wrist bone, and the third screw hole is adjacent to the position where the first fixing section and the second fixing section are connected.
As an embodiment, a plurality of notches are respectively arranged on two side edges of the second fixing section.
The technical scheme of the application has the following beneficial effects:
1. The wrist joint fusion plate comprises a first fixing section and a second fixing section which are fixedly connected with each other, the first fixing section is used for being fixedly connected with a third metacarpal bone and a carpal bone, the second fixing section is used for being fixedly connected with the proximal end of a radius and the ilium bone located at the distal end of the radius, the axis of the first fixing section deviates from the axis of the second fixing section, and accordingly a first included angle is formed between the first fixing section and the second fixing section.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a wrist fusion plate according to an embodiment of the present application;
FIG. 2 is a schematic view of a wrist fusion plate according to an embodiment of the present application;
Fig. 3 is a schematic structural view of another view of the wrist fusion plate according to the embodiment of the present application.
Icon: 1-a first fixed section; 2-a second fixed section; 21-notch; 3-a first included angle; 4-a first screw hole; 5-a second screw hole; 6-third screw hole.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the term "proximal" means an end close to the heart tissue inside the body, and the term "distal" means an end far from the heart tissue inside the body, and the terms "first", "second", etc. are used only for distinguishing the description and are not to be construed as indicating or implying relative importance.
The embodiment of the application provides a wrist joint fusion plate which is used for reconstructing bone defects of distal excision of a carpal bone or a radius caused by bone tumors or other reasons, and can fix the proximal end of the radius, ilium positioned at the distal end of the radius, third metacarpal bone and the carpal bone, and simultaneously provides a fusion angle for the wrist joint, so that the problem of ulnar deviation of the wrist joint is reduced.
Wherein, ilium is the position of the distal end of the transplanted radius, and the transplanted ilium is used for filling the bone loss caused by tumor excision.
As shown in fig. 1 and 2, the wrist joint fusion plate comprises a first fixing section 1 and a second fixing section 2 which are fixedly connected with each other, the first fixing section 1 is fixedly connected with a third metacarpal bone and a carpal bone, the second fixing section 2 is fixedly connected with the proximal end of a radius and an ilium bone positioned at the distal end of the radius, and the axis of the first fixing section 1 deviates from the axis of the second fixing section 2, so that a first included angle 3 is formed between the first fixing section 1 and the second fixing section 2.
Optionally, the first fixing section 1 and the second fixing section 2 are integrally formed.
As shown in fig. 2, as an implementation manner, the adjacent complement angle of the first included angle 3 is 20-30 degrees, so that the range of the first included angle 3 can be 150-160 degrees, the use requirements of different patients are met, and the adaptability of the wrist joint fusion plate is improved.
As shown in fig. 3, as an embodiment, the vertical projection axis of the first fixing section 1 is offset from the axis of the second fixing section 2, so that the first fixing section 1 provides a fusion angle for the wrist joint, and the inclination directions of the first fixing section 1 and the third metacarpal bone are consistent, so that the first fixing section 1 is further easier to fix the third metacarpal bone.
As shown in fig. 3, as an embodiment, the angle formed between the axis of the perpendicular projection of the first fixed section 1 and the axis of the second fixed section 2 is 10 ° to 20 °. Thereby meeting the use requirements of different patients and improving the adaptability of the wrist joint fusion plate.
Optionally, the drawings of the embodiment of the application provide that the wrist joint fusion plate is adapted to the left side of the patient, and the wrist joint fusion plate is also adapted to the right side of the patient according to actual needs.
As shown in fig. 1, as an embodiment, the width of the first fixing section 1 is gradually narrowed from the connection position with the second fixing section 2 toward the direction away from the second fixing section 2. The first fixing section 1 can be matched with the width of the third metacarpal bone, so that the first fixing section 1 is convenient to fix the third metacarpal bone, and the failure of fixing the first fixing section 1 and the third metacarpal bone is avoided.
As shown in fig. 1, as an embodiment, a plurality of second screw holes 5 for fixing the radius and ilium are provided at intervals on the second fixing section 2, and the second fixing section 2 is fixed to the radius and ilium by passing bone screws through the second screw holes 5.
Alternatively, since the tumor is resected distally of the radius, the resected portion may be performed through the implanted ilium, and the second fixation segment 2 may be secured to the implanted ilium and the proximal end of the remaining sound radius.
As shown in fig. 1, as an embodiment, a plurality of first screw holes 4 for fixing a third metacarpal bone are provided at intervals on the first fixing section 1, and the first screw holes 4 have a smaller diameter than the second screw holes 5. Therefore, the wrist joint fusion plate provided by the embodiment of the application can be conveniently fixed with the third metacarpal bone, and the aperture of the first screw hole 4 is matched with the width of the third metacarpal bone, so that the risk of iatrogenic fracture caused by too thick diameter of the first screw hole 4 is avoided. In the prior art, the screw holes on the straight plate for fixing the lower leg are all the same aperture, namely, the screw holes for fixing the radius are as thick as the screw holes for fixing the third metacarpal, so that the risk of iatrogenic fracture exists.
As shown in fig. 1, as an embodiment, the first fixing section 1 is further provided with a third screw hole 6 for fixing the wrist bone, and the third screw hole 6 is adjacent to a position where the first fixing section 1 and the second fixing section 2 are connected. Thereby enabling the wrist fusion plate to be secured to the carpal bones.
As an embodiment, as shown in fig. 1, a plurality of notches 21 are provided on both side edges of the second fixing section 2. Thereby the contact area of the second fixing section 2 to periosteum can be reduced, and further the compression to periosteum is reduced to influence the blood circulation, thereby influencing the bone healing.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A wrist fusion plate comprising:
A first fixation segment for fixedly connecting with a third metacarpal bone and a carpal bone, and a second fixation segment connected with the first fixation segment for fixedly connecting with a proximal end of a radius and an implanted ilium;
The axis of the first fixed section deviates from the axis of the second fixed section, so that a first included angle is formed between the first fixed section and the second fixed section.
2. The wrist fusion plate according to claim 1, wherein the adjacent complement of the first included angle is 20 ° to 30 °.
3. The wrist fusion plate according to claim 2, wherein an axis of a perpendicular projection of the first securing section is disposed offset from an axis of the second securing section.
4. A wrist fusion plate according to claim 3, wherein the axis of the perpendicular projection of the first fixing section and the axis of the second fixing section form an angle of 10 ° to 20 °.
5. The wrist fusion plate according to any one of claims 1 to 4, wherein a width of the first fixing section is gradually narrowed from a connection position with the second fixing section toward a direction away from the second fixing section.
6. The wrist fusion plate according to claim 5, wherein a plurality of second screw holes for fixing the radius and ilium are provided at intervals on the second fixing section.
7. The wrist fusion plate according to claim 6, wherein a plurality of first screw holes for fixing the third metacarpal bone are provided at intervals on the first fixing section, the first screw holes have a smaller diameter than the second screw holes, and the first screw holes have a diameter adapted to the third metacarpal bone.
8. The wrist fusion plate according to claim 7, wherein a third screw hole for fixing the wrist bone is further provided in the first fixing section, the third screw hole being adjacent to a position where the first fixing section and the second fixing section are connected.
9. The wrist fusion plate according to any one of claims 1 to 4 wherein the two sides of the second fixing section are provided with a plurality of notches, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322562618.4U CN221229397U (en) | 2023-09-20 | 2023-09-20 | Wrist joint fusion plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322562618.4U CN221229397U (en) | 2023-09-20 | 2023-09-20 | Wrist joint fusion plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221229397U true CN221229397U (en) | 2024-06-28 |
Family
ID=91615284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322562618.4U Active CN221229397U (en) | 2023-09-20 | 2023-09-20 | Wrist joint fusion plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221229397U (en) |
-
2023
- 2023-09-20 CN CN202322562618.4U patent/CN221229397U/en active Active
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