CN210472249U - External fixator for distal radius fracture - Google Patents
External fixator for distal radius fracture Download PDFInfo
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- CN210472249U CN210472249U CN201920847109.7U CN201920847109U CN210472249U CN 210472249 U CN210472249 U CN 210472249U CN 201920847109 U CN201920847109 U CN 201920847109U CN 210472249 U CN210472249 U CN 210472249U
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- metacarpal
- fixing plate
- connecting block
- fixing
- fixing rod
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Abstract
The utility model provides an external fixator for distal radius fracture, which comprises a fixed rod A, a fixed rod B and a metacarpal bone fixed plate, wherein one ends of the fixed rod A and the fixed rod B are respectively provided with threads, the ends of the fixed rod A and the fixed rod B provided with the threads are connected through a sleeve, and the inner wall of the sleeve is provided with a thread structure corresponding to the threads on the fixed rod A and the fixed rod B; the free end of the fixing rod A is provided with a connecting piece, the metacarpal fixing plate is fixed on the fixing rod A through the connecting piece, the position of the metacarpal fixing plate relative to the fixing rod A can be adjusted leftwards and rightwards, and the metacarpal fixing plate is provided with a metacarpal spicule connecting block; the free end of dead lever B is equipped with the radius needle connecting block, adopts this external fixation frame in this application, can improve the security performance of operation and medical personnel's work efficiency, strengthens the control to the fracture reduction in the closed operation, reduces patient postoperative complication.
Description
Technical Field
The utility model relates to an external fixator for distal radius fracture.
Background
With the aging population of China, the incidence rate of distal radius fractures is obviously increased, and the treatment of distal radius fractures by adopting an external fixator through the wrist joint anatomical structure and combining the soft splint principle is more and more accepted by doctors and patients, because the fracture of the distal radius is reduced by only using a tiny incision and traction, but the currently adopted external fixation frame of the distal radius lacks adjustable freedom during use and cannot meet the requirements of the operations of traction, pressurization, reduction, fixation and the like on the fracture of the distal radius, which makes the operation very difficult, based on the above problems, the present application provides a distal radius external fixator with a novel structure, the radius far-end external fixation frame is designed with three-dimensional fixation on the basis of the original single-side external fixation, so that the adjustment of a ulnar dip angle and a palmar dip angle can be realized, the bones can be better reset, and the functions of wrist joints can be restored to a greater extent.
SUMMERY OF THE UTILITY MODEL
The utility model provides an external fixator for fracture of distal radius, which solves the problem of single function of the existing external fixator for fracture of distal radius and lacks adjustable freedom.
In order to solve the above problems, the present application provides an external fixator for distal radius fracture, which comprises a fixing rod a (1), a fixing rod B (2) and a metacarpal fixing plate (3), wherein one ends of the fixing rod a (1) and the fixing rod B (2) are respectively provided with a thread, the ends of the fixing rod a (1) and the fixing rod B (2) provided with the threads are connected through a sleeve (4), the inner wall of the sleeve (4) is provided with a thread structure corresponding to the threads on the fixing rod a (1) and the fixing rod B (2), and the length of the fixing rod a (1) and the fixing rod B (2) in the sleeve (4) can be adjusted by using the thread structure; a connecting piece (11) is arranged at the free end of the fixing rod A (1), the metacarpal fixing plate (3) is fixed on the fixing rod A (1) through the connecting piece (11), the position of the metacarpal fixing plate (3) relative to the fixing rod A (1) can be adjusted left and right, and a metacarpal acupuncture connecting block (31) is arranged on the metacarpal fixing plate (3); the free end of the fixing rod B (2) is provided with a radius needle connecting block (21).
As a preferable scheme of the application, the connecting piece (11) is a U-shaped groove (111), and a fixing bolt (112) is arranged on the U-shaped groove (111);
the connection structure of the metacarpal bone fixing plate (3) and the fixing rod A (1) is as follows:
a plurality of groups of screw holes corresponding to the fixing bolts (112) are formed in the metacarpal fixing plate (3), the metacarpal fixing plate (3) can be clamped in the U-shaped groove (111), and the fixing bolts (112) are arranged in different screw holes to realize left-right adjustment of the position of the metacarpal fixing plate (3) relative to the fixing rod A (1);
or, the metacarpal bone fixing plate (3) is of a rectangular frame structure in a shape like a Chinese character 'hui', namely, the middle position of the metacarpal bone fixing plate (3) is of a hollow strip frame structure, the metacarpal bone fixing plate (3) can be clamped in the 'U' -shaped groove (111), and the fixing bolts (112) are fixed at different positions of the hollow strip frame structure so as to realize the left-right adjustment of the position of the metacarpal bone fixing plate (3) relative to the fixing rod A (1).
According to the preferable scheme of the application, the side arms at two sides of the U-shaped groove (111) are provided with rectangular openings (1111), the bolts are installed on the rectangular openings (1111), the positions of the bolts on the U-shaped groove (111) can be adjusted up and down by utilizing the rectangular openings (1111), and further the position of the metacarpal fixing plate (3) relative to the U-shaped groove (111) is adjusted.
As the preferable scheme of the application, when the metacarpal bone fixing plate (3) is in a rectangular frame structure in a shape like a Chinese character 'hui', the metacarpal bone needle connecting block (31) is arranged on the hollow strip frame structure of the metacarpal bone fixing plate (3) and can adjust the position of the metacarpal bone needle connecting block (31) relative to the metacarpal bone fixing plate (3) leftwards and rightwards.
As a preferable scheme of the application, the structure of the metacarpal bone spicule connecting block (31) comprises:
when the proximal end of the metacarpal spicule (5) is in a thread shape, the metacarpal spicule connecting block (31) comprises at least one group of nuts (311) which can be connected with the proximal end of the metacarpal spicule (5), and the diameter of the proximal end of the metacarpal spicule (5) is smaller than the width of a hollow strip frame on the metacarpal fixing plate (3);
when the proximal end of the metacarpal bone needle (5) is in a non-threaded shape, the metacarpal bone needle connecting block (31) comprises a hollow tube (313), the diameter of the hollow tube (313) is smaller than the width of a hollow strip frame on the metacarpal bone fixing plate (3), threads are arranged on the periphery of the hollow tube (313), two groups of nuts (311) used for fixing the hollow tube in the hollow strip frame on the metacarpal bone fixing plate (3) are arranged on the hollow tube (313), a transverse threaded hole A (314) is formed in one side wall of the hollow tube (313), a screw A (315) is arranged in the threaded hole A (314), and the metacarpal bone needle (5) can be installed in the hollow of the hollow tube (313) and fixed in the hollow tube (313) through the screw A (315).
As the preferred scheme of this application, radius needle connecting block (21) contain fixing base (211), be equipped with radius pinhole (2113) on fixing base (211), be equipped with horizontal screw hole B (2111) on the lateral wall of this radius pinhole (2113), be equipped with screw B (2112) in screw hole B (2111).
As a preferable scheme of the application, the metacarpal bone spicule connecting block (31) comprises a second metacarpal bone spicule connecting block and a third metacarpal bone spicule connecting block.
Compared with the prior art, the external fixator for distal radius fracture has the following advantages:
(1) the length of the external fixator can be adjusted through the fixing rod A1, the fixing rod B2 and the sleeve 4, and further the traction and fixation of the height of the distal end of the radius can be realized;
(2) the fixing position of the metacarpal bone fixing plate 3 can be adjusted left and right on the fixing rod A1, so that the adjustment of the dip angle of the ruler and the dip angle of the palm can be realized, the bones can be better reset, and the function of the wrist joint can be restored to a greater extent;
(3) the operation safety is improved, the control on the fracture reduction in the closed operation is strengthened, and the postoperative complications are reduced;
(4) the use is flexible, and the operation is simple;
(5) the working efficiency of medical personnel is improved.
Drawings
Fig. 1 is a schematic front view of an external fixing frame according to an embodiment of the present invention;
fig. 2 is a partial enlarged view of a portion a in fig. 1 according to an embodiment of the present invention;
fig. 3 is a schematic side view of an external fixing frame according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a metacarpal bone needle according to an embodiment of the present invention;
fig. 5 is a schematic top view of a metacarpal fixing plate according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating a connection between a metacarpal fixing plate and a metacarpal bone needle according to a first embodiment of the present invention;
fig. 7 is a schematic structural view of another metacarpal bone needle provided by the second embodiment of the present invention;
fig. 8 is a schematic top view of a metacarpal fixing plate according to a second embodiment of the present invention;
fig. 9 is a schematic top view of a hollow tube according to a second embodiment of the present invention;
fig. 10 is an enlarged schematic view of fig. 9 according to a second embodiment of the present invention;
fig. 11 is a schematic view illustrating the connection between the metacarpal fixing plate and the metacarpal acupuncture according to the second embodiment of the present invention;
fig. 12 is a schematic structural view of the U-shaped groove provided in the third embodiment of the present invention, wherein rectangular openings are formed in the side arms at two sides of the U-shaped groove.
Reference numerals
The fixing rod A1, the connecting piece 11, the 'U' -shaped groove 111, the rectangular opening 1111, the fixing bolt 112, the positive wire 12, the fixing rod B2, the radius needle connecting block 21, the fixing seat 211, the threaded hole B2111, the screw B2112, the radius needle hole 2113, the inverse wire 22, the metacarpal fixing plate 3, the metacarpal needle connecting block 31, the nut 311, the metacarpal needle hole 312, the hollow tube 313, the threaded hole A314, the screw A315, the sleeve 4 and the metacarpal needle 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
the embodiment provides an external fixator for distal radius fracture, which is shown in fig. 1 and comprises a fixing rod a1, a fixing rod B2 and a metacarpal fixing plate 3, wherein one end of the fixing rod a1 and one end of the fixing rod B2 are respectively provided with a positive wire 12 and a negative wire 22, one ends of the fixing rod a1 and one end of the fixing rod B2 provided with the positive wire 12 and the negative wire 22 are connected through a sleeve 4, the inner wall of the sleeve 4 is provided with a thread structure corresponding to the positive wire 12 and the negative wire 22 on the fixing rod a1 and the fixing rod B2, and the length of the fixing rod a1 and the fixing rod B2 in the sleeve 4 can be adjusted by using the thread structure, so that the height of the distal radius is pulled and fixed; the free end of the fixing rod a1 is provided with a connecting piece 11, in this embodiment, the connecting piece 11 is preferably a "U" shaped groove 111 integrally formed with the fixing rod a1, and the "U" shaped groove 111 is provided with a fixing bolt 112, see fig. 3; the metacarpal fixing plate 3 is fixed on the fixing rod A1 through the connecting piece 11, the position of the metacarpal fixing plate 3 relative to the fixing rod A1 can be adjusted left and right, and the metacarpal fixing plate 3 is provided with a metacarpal bone needle connecting block 31, preferably comprising a 2 nd metacarpal bone needle connecting block 31 and a third metacarpal bone needle connecting block 31 in the embodiment; the free end of the fixing rod B2 is provided with a radius needle connecting block 21; in this embodiment, the radial bone needle connecting block 21 includes a fixing base 211, a radial bone needle hole 2113 is provided on the fixing base 211, a transverse threaded hole B2111 is provided on a side wall of the radial bone needle hole 2113, and a screw B2112 is provided in the threaded hole B2111, so that when in use, the radial bone needle can be installed in the radial bone needle hole 2113 on the fixing base 211 and fixed by the screw B2112, as shown in fig. 2.
In the use of the embodiment, the metacarpal fixing plate 3 is fixed in the U-shaped groove 111 of the fixing rod a1, the position of the metacarpal fixing plate 3 relative to the fixing rod a1 is adjusted as required to adjust the ulnar inclination angle and the palmar inclination angle, the metacarpal bone needle 5 is fixed in the metacarpal bone needle connecting block 31 on the metacarpal fixing plate 3, meanwhile, the lengths of the fixing rod a1 and the fixing rod B2 in the sleeve 4 are adjusted as required to realize the traction adjustment of the radius distal end height, and the radius needle is fixed in the radius needle connecting block 21 at the free end of the fixing rod B2, so that in conclusion, the external fixing frame in the embodiment is flexible to use and simple to operate, and can be freely adjusted as required to realize the adjustment of the ulnar inclination angle, the palmar inclination angle, the radius distal end height and the like, so that the bone can be better reset and the wrist joint function can be recovered to a greater extent, therefore, the external fixing frame in the embodiment can improve the safety performance of the operation and the working efficiency of medical staff, strengthen the control on fracture reduction in the closed operation and reduce the postoperative complications of patients.
Further, in the present embodiment, the metacarpal fixing plate 3 is fixed on the fixing rod a1 by the connecting member 11, and the position of the metacarpal fixing plate 3 relative to the fixing rod a1 can be adjusted left and right by the connecting member 11, wherein the connecting structure of the metacarpal fixing plate 3 and the fixing rod a1 is as follows:
the metacarpal bone fixing plate 3 is a rectangular plate-shaped body, a plurality of groups of screw holes corresponding to the fixing bolts 112 are transversely arranged on the rectangular plate-shaped body, when in use, the metacarpal bone fixing plate 3 is transversely clamped in the U-shaped groove 111, and the fixing bolts 112 are arranged in different screw holes so as to realize the left-right adjustment of the position of the metacarpal bone fixing plate 3 relative to the fixing rod A1;
or, the metacarpal fixing plate 3 is a rectangular frame structure in a shape of a Chinese character 'hui', that is, the middle position of the metacarpal fixing plate 3 is a hollow strip frame structure, when in use, the metacarpal fixing plate 3 is clamped in the 'U' -shaped groove 111, and the fixing bolts 112 are installed at different positions of the hollow strip frame structure to realize the left-right adjustment of the metacarpal fixing plate 3 relative to the position of the fixing rod a 1.
In the present embodiment, the metacarpal fixing plate 3 is preferably a rectangular frame structure in a shape of "hui".
In this embodiment, the metacarpal fixing plate 3 is engaged in the "U" shaped groove 111, and not only can the position of the fixing rod a1 be adjusted left and right, but also the front and rear positions of the metacarpal fixing plate 3 in the "U" shaped groove 111 can be adjusted by providing a washer on the bolt 112.
Example 2:
compared with the embodiment 1, the difference of the embodiment is that when the metacarpal fixing plate 3 is in a rectangular frame structure in a shape of a Chinese character 'hui', the metacarpal needle connecting block 31 is arranged on the hollow strip frame structure of the metacarpal fixing plate 3 and the position of the metacarpal needle connecting block 31 relative to the metacarpal fixing plate 3 can be adjusted left and right; the structure of the metacarpal bone needle connecting block 31 comprises:
when the proximal end of the metacarpal spicule 5 is threaded, the metacarpal spicule connecting block 31 comprises at least one set of nuts 311 which can be connected with the proximal end of the metacarpal spicule 5, the diameter of the threaded part of the proximal end of the metacarpal spicule 5 is smaller than the width of the hollow strip frame on the metacarpal fixing plate 3, and the diameter of the non-threaded part of the proximal end is preferably larger than the width of the hollow strip frame on the metacarpal fixing plate 3, as shown in fig. 4-5; when in use, the hollow strip frame on the metacarpal bone fixing plate 3 is used as a metacarpal bone pinhole 312, and the part with the thread of the metacarpal bone needle 5 passes through the hollow strip frame and is fixed on the metacarpal bone fixing plate 3 through a nut 311, which is shown in fig. 6;
when the proximal end of the metacarpal bone needle 5 is in a non-threaded shape, the metacarpal bone needle connecting block 31 comprises a hollow tube 313, the diameter of the hollow tube 313 is smaller than the width of the hollow strip frame on the metacarpal bone fixing plate 3, the periphery of the hollow tube 313 is provided with threads, two groups of nuts 311 for fixing the hollow tube 313 on the metacarpal bone fixing plate 3 are arranged on the hollow tube 313, the two groups of nuts 311 are respectively positioned above and below the metacarpal bone fixing plate 3, a transverse threaded hole A314 is arranged on one side wall of the hollow tube 313, a screw A315 is arranged in the threaded hole A314, the metacarpal bone needle 5 can be arranged in the hollow of the hollow tube 313 and is fixed in the hollow tube 313 through the screw A315, and; when in use, the hollow tube 313 is fixed at different positions of the hollow strip frame on the metacarpal bone fixing plate 3 through the nut 311 according to requirements, then the hollow cavity of the hollow tube is used as a metacarpal bone pinhole 312, and the metacarpal bone needle 5 is arranged in the metacarpal bone pinhole 312 and fixed in the hollow tube 313 through the screw A315, which is shown in figure 11;
in summary, in the present embodiment, when in use, the position of the metacarpal bone needle connecting block 31 relative to the metacarpal bone fixing plate 3 can be adjusted as required, and meanwhile, the adjustment of the position of the metacarpal bone fixing plate 3 relative to the fixing rod a1 can be combined to realize three-dimensional adjustment and fixation, so that the bones can be better restored, and the wrist joint function can be restored to a greater extent.
Example 3:
compared with the embodiment 1 or 2, the difference of this embodiment is that rectangular openings 1111 are provided on the side arms at both sides of the "U" shaped groove 111, the bolt is installed on the rectangular openings 1111, the position of the bolt on the "U" shaped groove 111 can be adjusted up and down by using the rectangular openings 1111, and the position of the metacarpal fixing plate 3 relative to the "U" shaped groove 111 can be adjusted, see fig. 12.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. The external fixator for distal radius fracture is characterized by comprising a fixing rod A (1), a fixing rod B (2) and a metacarpal fixing plate (3), wherein threads are respectively arranged at one end of the fixing rod A (1) and one end of the fixing rod B (2) which are provided with the threads, the fixing rod A (1) and one end of the fixing rod B (2) which are provided with the threads are connected through a sleeve (4), a thread structure corresponding to the threads on the fixing rod A (1) and the fixing rod B (2) is arranged on the inner wall of the sleeve (4), and the length of the fixing rod A (1) and the fixing rod B (2) in the sleeve (4) can be adjusted by utilizing the thread structure; a connecting piece (11) is arranged at the free end of the fixing rod A (1), the metacarpal bone fixing plate (3) is fixed on the fixing rod A (1) through the connecting piece (11), the position of the metacarpal bone fixing plate (3) relative to the fixing rod A (1) can be adjusted left and right through the connecting piece (11), and a metacarpal bone spicule connecting block (31) is arranged on the metacarpal bone fixing plate (3); the free end of the fixing rod B (2) is provided with a radius needle connecting block (21).
2. The external fixator for distal radius fracture according to claim 1, wherein the connecting member (11) is a "U" shaped groove (111), and the "U" shaped groove (111) is provided with a fixing bolt (112);
the connection structure of the metacarpal bone fixing plate (3) and the fixing rod A (1) is as follows:
a plurality of groups of screw holes corresponding to the fixing bolts (112) are formed in the metacarpal fixing plate (3), the metacarpal fixing plate (3) can be clamped in the U-shaped groove (111), and the fixing bolts (112) are arranged in different screw holes to realize left-right adjustment of the position of the metacarpal fixing plate (3) relative to the fixing rod A (1);
or, the metacarpal bone fixing plate (3) is of a rectangular frame structure in a shape like a Chinese character 'hui', namely, the middle position of the metacarpal bone fixing plate (3) is of a hollow strip frame structure, the metacarpal bone fixing plate (3) can be clamped in the 'U' -shaped groove (111), and the fixing bolts (112) are fixed at different positions of the hollow strip frame structure so as to realize the left-right adjustment of the position of the metacarpal bone fixing plate (3) relative to the fixing rod A (1).
3. The external fixator for distal radius fracture according to claim 2, wherein the side arms at both sides of the "U" shaped groove (111) are provided with rectangular openings (1111), the bolts are installed on the rectangular openings (1111), and the rectangular openings (1111) can be used to adjust the position of the bolts on the "U" shaped groove (111) up and down, thereby adjusting the position of the metacarpal fixing plate (3) relative to the "U" shaped groove (111).
4. The external fixator for distal radius fractures according to claim 2, wherein when the metacarpal fixing plate (3) has a rectangular frame structure in a shape of a Chinese character 'hui', the metacarpal acupuncture connecting block (31) is arranged on the hollow strip frame structure of the metacarpal fixing plate (3) and the position of the metacarpal acupuncture connecting block (31) relative to the metacarpal fixing plate (3) can be adjusted left and right.
5. The external fixator for distal radius fracture of claim 4, wherein the structure of the metacarpal acupuncture connecting block (31) comprises:
when the proximal end of the metacarpal spicule (5) is in a thread shape, the metacarpal spicule connecting block (31) comprises at least one group of nuts (311) which can be connected with the proximal end of the metacarpal spicule (5), and the diameter of the proximal end of the metacarpal spicule (5) is smaller than the width of a hollow strip frame on the metacarpal fixing plate (3);
when the proximal end of the metacarpal bone needle (5) is in a non-threaded shape, the metacarpal bone needle connecting block (31) comprises a hollow tube (313), the diameter of the hollow tube (313) is smaller than the width of a hollow strip frame on the metacarpal bone fixing plate (3), threads are arranged on the periphery of the hollow tube (313), two groups of nuts (311) used for fixing the hollow tube in the hollow strip frame on the metacarpal bone fixing plate (3) are arranged on the hollow tube (313), a transverse threaded hole A (314) is formed in one side wall of the hollow tube (313), a screw A (315) is arranged in the threaded hole A (314), and the metacarpal bone needle (5) can be installed in the hollow of the hollow tube (313) and fixed in the hollow tube (313) through the screw A (315).
6. The external fixator for distal radius fracture according to any of claims 1-5, wherein the radial needle connecting block (21) comprises a fixing base (211), a radial needle hole (2113) is provided on the fixing base (211), a transverse threaded hole B (2111) is provided on the side wall of the radial needle hole (2113), and a screw B (2112) is provided in the threaded hole B (2111).
7. The external fixator for distal radius fracture according to any of claims 1-5, wherein the metacarpal acupuncture connecting block (31) comprises a second metacarpal acupuncture connecting block and a third metacarpal acupuncture connecting block.
8. The external fixator for distal radius fracture of claim 4, wherein the metacarpal acupuncture connecting block (31) comprises a second metacarpal acupuncture connecting block and a third metacarpal acupuncture connecting block.
9. The external fixator for distal radius fracture of claim 5, wherein the metacarpal acupuncture connecting block (31) comprises a second metacarpal acupuncture connecting block and a third metacarpal acupuncture connecting block.
10. The external fixator for distal radius fracture of claim 6, wherein the metacarpal acupuncture connecting block (31) comprises a second metacarpal acupuncture connecting block and a third metacarpal acupuncture connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847109.7U CN210472249U (en) | 2019-06-04 | 2019-06-04 | External fixator for distal radius fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847109.7U CN210472249U (en) | 2019-06-04 | 2019-06-04 | External fixator for distal radius fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210472249U true CN210472249U (en) | 2020-05-08 |
Family
ID=70512919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920847109.7U Expired - Fee Related CN210472249U (en) | 2019-06-04 | 2019-06-04 | External fixator for distal radius fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210472249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143149A1 (en) * | 2022-01-25 | 2023-08-03 | 陈聚伍 | Intramedullary fixing system for fracture end |
-
2019
- 2019-06-04 CN CN201920847109.7U patent/CN210472249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143149A1 (en) * | 2022-01-25 | 2023-08-03 | 陈聚伍 | Intramedullary fixing system for fracture end |
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