CN209770523U - Reinforced hollow magnesium alloy bone screw - Google Patents
Reinforced hollow magnesium alloy bone screw Download PDFInfo
- Publication number
- CN209770523U CN209770523U CN201822261409.5U CN201822261409U CN209770523U CN 209770523 U CN209770523 U CN 209770523U CN 201822261409 U CN201822261409 U CN 201822261409U CN 209770523 U CN209770523 U CN 209770523U
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- magnesium alloy
- screw
- screw head
- cavity
- limiting plate
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Abstract
The utility model discloses a can strengthen cavity magnesium alloy bone screw, including spliced pole, cavity, external screw thread, connecting rod, screw point end, magnesium alloy stick, screwhead, draw-in groove, fixture block, first limiting plate, screwhead lid, kirschner wire and second limiting plate. This kind can strengthen cavity magnesium alloy bone screw simple structure, the modern design can realize that the screw implants human back can be absorbed by the degradation, need not to carry out the secondary operation and take out, very big reduction infects risk and patient burden, do benefit to the patient and recover, when using, cooperation ke shi needle can not appear twisting partial phenomenon at the screw twist in-process, has the guidance quality, and add the magnesium alloy stick in the cavity, can strengthen screw intensity, satisfy the user and use, the practicality value is higher, and is suitable for being generalized to use.
Description
Technical Field
The utility model relates to a magnesium alloy bone screw, in particular to a reinforced hollow magnesium alloy bone screw, which belongs to the technical field of bone fracture application.
Background
The bone screw comprises a hollow screw, a nut, a plug screw and a gasket; the screw, the nut and the plug screw are made of 00Cr18Ni14Mo3 stainless steel and Ti6A14V titanium alloy, and the gasket is made of 00Cr18Ni14Mo3 stainless steel and pure titanium; packaging without sterilization; is suitable for internal fixation of fracture during orthopedic operation.
Present hollow nail in the market is mostly titanium alloy screw, for the non-degradable absorbs the screw, need the secondary operation to take out, be unfavorable for the patient to resume, obviously can increase infection risk and patient's burden, some degradable screws that have now are mostly solid screw, solid screw does not have the guidance quality, the phenomenon partially twisted often can appear among the implantation process, degradable hollow screw material is mostly macromolecular material simultaneously, macromolecular material intensity itself is low, it is lower to make hollow screw intensity, unsatisfied use needs. Therefore, the hollow magnesium alloy bone screw capable of being strengthened is provided aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the above problems and provide a reinforced hollow magnesium alloy bone screw.
The utility model realizes the purpose through the following technical proposal, a reinforced hollow magnesium alloy bone screw, which comprises a connecting column, a connecting rod, a screw tip, a magnesium alloy rod and a screw head; the left end of the connecting column is fixedly connected with a connecting rod made of magnesium alloy material, and the connecting column is made of magnesium alloy material; the left end of the connecting rod is fixedly connected with a screw tip made of magnesium alloy material; the right end of the connecting column is provided with a cavity, and the right end of the connecting column is fixedly connected with a screw head made of magnesium alloy material; a clamping groove fixedly communicated with the cavity is formed in the right end of the screw head, and a clamping block made of magnesium alloy material is connected in the clamping groove in a clamping mode; the right end of the clamping block is fixedly connected with a first limiting plate made of magnesium alloy material, and the right end of the first limiting plate is fixedly connected with a Kirschner wire; the surface of the Kirschner wire is sleeved with a screw head cover made of magnesium alloy material, and the right side of the screw head cover is attached with a second limiting plate which is made of magnesium alloy material and fixed on the surface of the Kirschner wire.
Preferably, the diameter of the cavity is smaller than the width of the clamping groove, and the cavity is fixedly communicated with the clamping groove.
Preferably, the inner wall of the screw head cover is in threaded connection with the outer surface of the screw head.
preferably, the first limiting plate is connected with the inner wall of the screw head cover in a sliding mode, and the outer side of the other side of the screw head cover is connected with the second limiting plate in a sliding mode.
Preferably, the cross section of the clamping groove is of a straight-line structure, and the clamping groove is connected with the clamping block in a clamping mode.
Preferably, the central axes of the connecting column, the connecting rod, the screw head and the kirschner wire are on the same horizontal line.
The utility model has the advantages that:
1. the reinforced hollow magnesium alloy bone screw is simple in structure and novel in design, can be degraded and absorbed after being implanted into a human body, does not need to be taken out in a secondary operation, greatly reduces infection risk and burden of a patient, and is beneficial to recovery of the patient.
2. When the screw is used, the phenomenon of deviation twisting cannot occur in the screw screwing process by matching with the kirschner wire, guidance is provided, the magnesium alloy rod is added into the cavity, the strength of the screw can be enhanced, the use of a user is met, the practical value is high, and the screw is suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall surface structure of the present invention;
fig. 3 is a schematic view of the structure of the screw head of the present invention.
In the figure: 1. the device comprises a connecting column, 101, a cavity, 2, external threads, 3, a connecting rod, 4, a screw tip, 5, a magnesium alloy rod, 6, a screw head, 7, a clamping groove, 8, a clamping block, 9, a first limiting plate, 10, a screw head cover, 11, a Kirschner wire, 12 and a second limiting plate.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Referring to fig. 1-3, a reinforced hollow magnesium alloy bone screw includes a connecting post 1, a connecting rod 3, a screw tip 4, a magnesium alloy rod 5 and a screw head 6; wherein the left end of the connecting column 1 is fixedly connected with a connecting rod 3 made of magnesium alloy material, and the connecting column 1 is made of magnesium alloy material; the left end of the connecting rod 3 is fixedly connected with a screw tip 4 made of magnesium alloy material, and the connecting rod 3 is arranged to facilitate the fixation of the screw tip 4; the right end of the connecting column 1 is provided with a cavity 101, the right end of the connecting column 1 is fixedly connected with a screw head 6 made of magnesium alloy material, and the screw head 6 is arranged, so that a screw head cover 10 is conveniently in threaded connection with the screw head 6; the right end of the screw head 6 is provided with a clamping groove 7 fixedly communicated with the cavity 101, a clamping block 8 made of magnesium alloy material is connected in the clamping groove 7 in a clamping mode, and the clamping groove 7 is arranged to facilitate clamping of the clamping block 8 and the clamping groove 7; the right end of the clamping block 8 is fixedly connected with a first limiting plate 9 made of magnesium alloy materials, the right end of the first limiting plate 9 is fixedly connected with a Kirschner wire 11, and the Kirschner wire 11 is arranged, so that the guiding effect of the screw is improved; the screw head cover 10 made of magnesium alloy materials is sleeved on the surface of the Kirschner wire 11, and the second limiting plate 12 which is made of magnesium alloy materials and fixed on the surface of the Kirschner wire 11 is attached to the right side of the screw head cover 10.
The diameter of the cavity 101 is smaller than the width of the clamping groove 7, and the cavity 101 is fixedly communicated with the clamping groove 7, so that the magnesium alloy rod 5 is conveniently guided into the cavity 101 through the clamping groove 7; the inner wall of the screw head cover 10 is in threaded connection with the outer surface of the screw head 6, so that the stable connection between the screw head 6 and the screw head cover 10 is facilitated; the first limiting plate 9 is connected with the inner wall of the screw head cover 10 in a sliding mode, and the outer face of the other side of the screw head cover 10 is connected with the second limiting plate 12 in a sliding mode, so that the screw head cover 10 can be limited and stably rotated conveniently through the first limiting plate 9 and the second limiting plate 12; the cross section of the clamping groove 7 is of a straight-line structure, and the clamping groove 7 is connected with the clamping block 8 in a clamping mode, so that the clamping groove 7 and the clamping block 8 can be clamped stably, and the clamping stability is improved; the central axes of the connecting column 1, the connecting rod 3, the screw head 6 and the Kirschner wire 11 are on the same horizontal line, so that the connecting column 1, the connecting rod 3, the screw head 6 and the Kirschner wire 11 are compactly placed, and the use is convenient.
The utility model discloses when using, take out through the screw that will strengthen intensity, then connect magnesium alloy stick 5 in cavity 101 through draw-in groove 7 block, very big strengthen screw intensity, then with screw head lid 10 and 6 threaded connection of screwhead, fixture block 8 and carry out the block along draw-in groove 7 when screw head lid 10 and 6 threaded connection of screwhead, and then guarantee fixture block 8 fixes, the rotation of the screw of being convenient for simultaneously, when performing the operation simultaneously, through ke shi needle 11 when the screw rotates, wire is carried out to the screw, avoid the screw to appear twisting partial phenomenon at the implantation in-process, thereby accomplish bone screw's use.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A hollow magnesium alloy bone screw capable of being strengthened is characterized in that: comprises a connecting column (1), a connecting rod (3), a screw tip (4), a magnesium alloy rod (5) and a screw head (6); wherein the left end of the connecting column (1) is fixedly connected with a connecting rod (3) made of magnesium alloy material, and the connecting column (1) is made of magnesium alloy material; the left end of the connecting rod (3) is fixedly connected with a screw tip (4) made of magnesium alloy material; the right end of the connecting column (1) is provided with a cavity (101), and the right end of the connecting column (1) is fixedly connected with a screw head (6) made of magnesium alloy material; a clamping groove (7) fixedly communicated with the cavity (101) is formed in the right end of the screw head (6), and a clamping block (8) made of magnesium alloy material is connected in the clamping groove (7) in a clamping mode; the right end of the clamping block (8) is fixedly connected with a first limiting plate (9) made of magnesium alloy materials, and the right end of the first limiting plate (9) is fixedly connected with a Kirschner wire (11); the surface of the Kirschner wire (11) is sleeved with a screw head cover (10) made of magnesium alloy material, and the right side of the screw head cover (10) is attached with a second limiting plate (12) made of magnesium alloy material and fixed on the surface of the Kirschner wire (11).
2. The hollow magnesium alloy bone screw of claim 1, wherein: the diameter of the cavity (101) is smaller than the width of the clamping groove (7), and the cavity (101) is fixedly communicated with the clamping groove (7).
3. The hollow magnesium alloy bone screw of claim 1, wherein: the inner wall of the screw head cover (10) is in threaded connection with the outer surface of the screw head (6).
4. The hollow magnesium alloy bone screw of claim 1, wherein: the first limiting plate (9) is connected with the inner wall of the screw head cover (10) in a sliding mode, and the outer face of the other side of the screw head cover (10) is connected with the second limiting plate (12) in a sliding mode.
5. The hollow magnesium alloy bone screw of claim 1, wherein: the cross section of the clamping groove (7) is of a straight-line structure, and the clamping groove (7) is connected with the clamping block (8) in a clamping mode.
6. The hollow magnesium alloy bone screw of claim 1, wherein: the central axes of the connecting column (1), the connecting rod (3), the screw head (6) and the Kirschner wire (11) are on the same horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261409.5U CN209770523U (en) | 2018-12-30 | 2018-12-30 | Reinforced hollow magnesium alloy bone screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822261409.5U CN209770523U (en) | 2018-12-30 | 2018-12-30 | Reinforced hollow magnesium alloy bone screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209770523U true CN209770523U (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822261409.5U Active CN209770523U (en) | 2018-12-30 | 2018-12-30 | Reinforced hollow magnesium alloy bone screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209770523U (en) |
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2018
- 2018-12-30 CN CN201822261409.5U patent/CN209770523U/en active Active
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