CN215606168U - Orthopedic locking and fixing needle - Google Patents
Orthopedic locking and fixing needle Download PDFInfo
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- CN215606168U CN215606168U CN202121458397.0U CN202121458397U CN215606168U CN 215606168 U CN215606168 U CN 215606168U CN 202121458397 U CN202121458397 U CN 202121458397U CN 215606168 U CN215606168 U CN 215606168U
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- locking thread
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Abstract
The utility model discloses an orthopedic locking fixing needle which comprises a fixing needle body, a self-locking thread section arranged at one end of the fixing needle body and used for being in threaded connection with a fixing part, and a threaded connecting rod arranged at the other end of the fixing needle body and used for being screwed into bones, wherein a conical needle head is arranged at one end, away from the fixing needle body, of the threaded connecting rod, a spiral groove in smooth transition with the conical needle head is arranged on the threaded connecting rod, the diameter of the threaded connecting rod is smaller than that of the fixing needle body, and the diameter of the self-locking thread section is not smaller than that of the fixing needle body. The self-locking fixing needle is simple in structure, the fixed connection between the locking fixing needle and the fixing piece can be realized through the thread self-locking connection between the self-locking thread section and the self-locking thread section mounting hole, the conical needle head and the spiral groove are both beneficial to screwing the locking fixing needle into bones, and the manual operation of a user is facilitated.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to an orthopedic locking and fixing needle.
Background
Fixed needle and supporting use of orthopedics external fixation frame, at present, the connection between fixed needle and the external fixation frame is fixed with multiple mode, but is almost through modes such as extrusion, jackscrew top tightly, centre gripping, has that spare part is more, complex operation, fixed insecure, the volume is great, postoperative care is inconvenient, and the patient has shortcomings such as fear psychology even, consequently, needs an easy operation, fixes firmly, the less orthopedics of volume to fix clinically.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the defects in the prior art are overcome, and the orthopedic locking fixing needle is simple in structure and reasonable in design, can realize the fixed connection between the locking fixing needle and a fixing part through the thread self-locking connection between the self-locking thread section and the self-locking thread section mounting hole, is beneficial to screwing the locking fixing needle into bones due to the conical needle head and the spiral groove, and is convenient for a user to manually operate.
In order to solve the technical problems, the utility model adopts the technical scheme that: an orthopedics locking fixing needle which characterized in that: including fixed needle body, setting be in fixed needle body one end be used for with mounting threaded connection's auto-lock screw thread section with set up the fixed needle body other end is used for twisting the threaded connection pole in the bone, threaded connection pole is kept away from the one end of fixed needle body is provided with the toper syringe needle, be provided with on the threaded connection pole with toper syringe needle smooth transition's helicla flute, threaded connection pole's diameter is less than the diameter of fixed needle body, the diameter of auto-lock screw thread section is not less than the diameter of fixed needle body.
Above-mentioned orthopedics locking pin, its characterized in that: the self-locking thread section is a cylindrical self-locking thread section or a conical self-locking thread section, the diameter of the cylindrical self-locking thread section is larger than that of the fixed needle body, and the diameter of the small-diameter end of the conical self-locking thread section is not smaller than that of the fixed needle body.
Above-mentioned orthopedics locking pin, its characterized in that: and a nut is arranged on the cylindrical self-locking thread section or the conical self-locking thread section.
Above-mentioned orthopedics locking pin, its characterized in that: the cylindrical self-locking thread section or the conical self-locking thread section is provided with a dismounting hole which is a straight hole, a cross-shaped hole, an equilateral triangle hole, a plum blossom hole or an inner hexagonal hole.
Compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the self-locking thread section is arranged at one end of the fixed needle body, when the fixed needle is actually used, only one or more groups of self-locking thread section mounting holes matched with the self-locking thread section are required to be formed in the fixing part, and the axial movement and the radial rotation of the fixed needle can be limited through the thread self-locking connection between the self-locking thread section and the self-locking thread section mounting holes, so that the fixed connection between the fixed needle and the fixing part can be locked, a clamping part or a set screw is not required to be arranged, the disassembly and the assembly are convenient, the connection is reliable, and the use effect is good.
2. According to the utility model, the threaded connecting rod is arranged at the other end of the fixing needle body, the conical needle head is arranged at one end, away from the fixing needle body, of the threaded connecting rod, and the spiral groove in smooth transition with the conical needle head is arranged on the threaded connecting rod.
3. The utility model has simple structure, reasonable design, convenient use and convenient popularization and application.
In conclusion, the self-locking fixing needle is simple in structure and reasonable in design, the fixed connection between the locking fixing needle and the fixing piece can be realized through the thread self-locking connection between the self-locking thread section and the self-locking thread section mounting hole, the conical needle head and the spiral groove are both beneficial to screwing the locking fixing needle into bones, and the manual operation of a user is facilitated.
The utility model is described in further detail below with reference to the figures and examples.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
FIG. 2 is a schematic view showing the connection relationship between the threaded connecting rod, the conical needle and the spiral groove of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 4 of the present invention.
Description of reference numerals:
1-a fixing piece; 2-a screw cap; 3-1-fixing the needle body;
3-2-threaded connecting rod; 3-2-1-spiral groove; 3-cylindrical self-locking thread section;
3-4-conical needle; 3-5-conical self-locking thread section; 4-assembling and disassembling holes.
Detailed Description
The technical solution of the present invention is explained in detail by examples 1 to 4:
example 1
As shown in fig. 1 and 2, the bone self-locking needle comprises a fixed needle body 3-1, a self-locking thread section arranged at one end of the fixed needle body 3-1 and used for being in threaded connection with a fixing part 1, and a threaded connecting rod 3-2 arranged at the other end of the fixed needle body 3-1 and used for being screwed into a bone, wherein a conical needle head 3-4 is arranged at one end of the threaded connecting rod 3-2, which is far away from the fixed needle body 3-1, a spiral groove 3-2-1 in smooth transition with the conical needle head 3-4 is arranged on the threaded connecting rod 3-2, the diameter of the threaded connecting rod 3-2 is smaller than that of the fixed needle body 3-1, and the diameter of the self-locking thread section is not smaller than that of the fixed needle body 3-1.
In the embodiment, the self-locking thread section is arranged at one end of the fixed needle body 3-1, during actual use, only one group or multiple groups of self-locking thread section mounting holes matched with the self-locking thread section need to be formed in the fixing part 1, and the axial movement and the radial rotation of the locking fixed needle can be limited through the thread self-locking connection between the self-locking thread section and the self-locking thread section mounting holes, so that the fixed connection between the locking fixed needle and the fixing part can be realized, a clamping part or a set screw does not need to be arranged, the assembly and disassembly are convenient, the connection is reliable, and the use effect is good.
In the embodiment, the threaded connecting rod 3-2 is arranged at the other end of the fixing needle body 3-1, the conical needle head 3-4 is arranged at one end, far away from the fixing needle body 3-1, of the threaded connecting rod 3-2, and the spiral groove 3-2-1 in smooth transition with the conical needle head 3-4 is arranged on the threaded connecting rod 3-2, so that the conical needle head 3-4 and the spiral groove 3-2-1 are both beneficial to locking the fixing needle to be screwed into a bone in actual use, and manual operation of a user is facilitated.
As shown in FIG. 2, in the present embodiment, the number of the spiral grooves 3-2-1 is two, and the two spiral grooves 3-2-1 are uniformly arranged along the circumferential direction of the threaded connecting rod 3-2.
During actual use, the penetrating direction of the locking fixing needle on the fixing part 1 is unique, and when the locking fixing needle is actually penetrated, the conical needle head 3-4, the threaded connecting rod 3-2 and the fixing needle body 3-1 of the locking fixing needle need to sequentially penetrate through the self-locking thread section mounting hole, so that reliable connection between the locking fixing needle and a bone can be ensured only when the diameter of the threaded connecting rod 3-2 is smaller than that of the fixing needle body 3-1 and the diameter of the self-locking thread section is not smaller than that of the fixing needle body 3-1, and the using effect is good.
In the embodiment, the self-locking thread section is a cylindrical self-locking thread section 3-3, and the diameter of the cylindrical self-locking thread section 3-3 is larger than that of the fixed needle body 3-1.
In this embodiment, the cylindrical self-locking thread section 3-3 is provided with a nut 2.
In practical use, when the self-locking thread section is a cylindrical self-locking thread section 3-3, the self-locking thread section mounting hole is a cylindrical threaded hole matched with the cylindrical self-locking thread section 3-3, and the nut 2 can be an outer hexagonal nut or a square nut.
Example 2
As shown in fig. 3, in the present embodiment, unlike embodiment 1: the self-locking thread section is a conical self-locking thread section 3-5, and the diameter of the small-diameter end of the conical self-locking thread section 3-5 is not smaller than the diameter of the fixed needle body 3-1.
When the self-locking thread section is 3-5 conical self-locking thread sections in practical use, the mounting holes of the self-locking thread sections are conical threaded holes matched with the 3-5 conical self-locking thread sections.
Example 3
As shown in fig. 4, in the present embodiment, unlike embodiment 1: the cylindrical self-locking thread section 3-3 is provided with a dismounting hole 4, and the dismounting hole 4 is a straight hole, a cross-shaped hole, an equilateral triangle hole, a plum blossom-shaped hole or an inner hexagonal hole.
Example 4
As shown in fig. 5, in the present embodiment, unlike embodiment 3: the self-locking thread section is a conical self-locking thread section 3-5.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (4)
1. An orthopedics locking fixing needle which characterized in that: comprises a fixed needle body (3-1), a self-locking thread section arranged at one end of the fixed needle body (3-1) and used for being in threaded connection with a fixing part (1), and a threaded connecting rod (3-2) arranged at the other end of the fixed needle body (3-1) and used for being screwed into a bone, one end of the threaded connecting rod (3-2) far away from the fixed needle body (3-1) is provided with a conical needle head (3-4), the threaded connecting rod (3-2) is provided with a spiral groove (3-2-1) which is in smooth transition with the conical needle head (3-4), the diameter of the threaded connecting rod (3-2) is smaller than that of the fixing needle body (3-1), the diameter of the self-locking thread section is not smaller than that of the fixed needle body (3-1).
2. An orthopedic locking fixation needle as in claim 1, wherein: the self-locking thread section is a cylindrical self-locking thread section (3-3) or a conical self-locking thread section (3-5), the diameter of the cylindrical self-locking thread section (3-3) is larger than that of the fixed needle body (3-1), and the diameter of the small-diameter end of the conical self-locking thread section (3-5) is not smaller than that of the fixed needle body (3-1).
3. An orthopedic locking fixation needle as in claim 2, wherein: and a nut (2) is arranged on the cylindrical self-locking thread section (3-3) or the conical self-locking thread section (3-5).
4. An orthopedic locking fixation needle as in claim 2, wherein: the cylindrical self-locking thread section (3-3) or the conical self-locking thread section (3-5) is provided with a dismounting hole (4), and the dismounting hole (4) is a straight hole, a cross-shaped hole, an equilateral triangle hole, a plum blossom hole or an inner hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121458397.0U CN215606168U (en) | 2021-06-29 | 2021-06-29 | Orthopedic locking and fixing needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121458397.0U CN215606168U (en) | 2021-06-29 | 2021-06-29 | Orthopedic locking and fixing needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215606168U true CN215606168U (en) | 2022-01-25 |
Family
ID=79946467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121458397.0U Active CN215606168U (en) | 2021-06-29 | 2021-06-29 | Orthopedic locking and fixing needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215606168U (en) |
-
2021
- 2021-06-29 CN CN202121458397.0U patent/CN215606168U/en active Active
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