CN219895891U - Expansion bone nail - Google Patents
Expansion bone nail Download PDFInfo
- Publication number
- CN219895891U CN219895891U CN202321005589.5U CN202321005589U CN219895891U CN 219895891 U CN219895891 U CN 219895891U CN 202321005589 U CN202321005589 U CN 202321005589U CN 219895891 U CN219895891 U CN 219895891U
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- CN
- China
- Prior art keywords
- hole
- expansion
- bone
- bone screw
- anchor sleeve
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 71
- 238000003801 milling Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 210000003423 ankle Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001054 cortical effect Effects 0.000 description 1
- 210000000610 foot bone Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007943 implant Substances 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
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000003371 toe Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to the technical field of expansion bone nails, in particular to an expansion bone nail. The technical proposal comprises: the bone screw comprises a bone screw body, a fixing block and an anchor sleeve, wherein the fixing block is fixedly arranged on one side of the bone screw body, a movable groove is formed in the inner side of the bone screw body, a first through hole is formed in one side of the movable groove, a second through hole is formed in the other side of the bone screw body, the anchor sleeve is arranged on the outer side of the bone screw body in a threaded mode, and a fixing ring is fixedly arranged on one side of the anchor sleeve. According to the utility model, through the mutual matching among the movable groove, the first through hole, the second through hole and the third through hole, the wire can be conveniently carried by penetrating the wire from the third through hole, the wire can be conveniently connected during operation, the anchor sleeve can be pushed to be extruded by screwing the anchor body through the mutual matching among the bone screw body, the anchor sleeve and the expansion hole, and the expansion operation of the anchor sleeve can be realized.
Description
Technical Field
The utility model relates to the technical field of expansion bone nails, in particular to an expansion bone nail.
Background
The bone nail is an inactive surgical metal implant for bone joining, and is composed of cortical bone nails and spongy bone nails, and is used for stabilizing new fracture, revision surgery, joint fusion and reconstruction of small bones of feet, ankles and toes, the fracture is easy to cause in life, the fracture part needs to be stabilized, and when the fracture part is stabilized, the expansion bone nail needs to be utilized, wherein the application number is CN105520778A, the expansion bone nail solves the various defects that the existing bone nail is easy to loosen in bone tissues and difficult to fix in bone tissues, and the expansion bone nail is further searched, and the application number is CN208541392U, through the specific technical structure, the technical defects that the existing bone nail is easy to loosen in bones, difficult to fix in bones and the like are really overcome, but the expansion bone nail with similar structure has various defects in practical use, such as: the existing expansion bone nail is inconvenient to connect wires, has single function, complex structure and troublesome operation, and is inconvenient to use, so that the expansion bone nail needs to be designed.
Disclosure of Invention
The present utility model is directed to an expansion bone screw, which solves the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an inflation bone nail, includes bone nail body, fixed block and anchor sleeve pipe, one side fixed mounting of bone nail body has the fixed block, the movable slot has been seted up to the inboard of bone nail body, first through-hole has been seted up to one side of movable slot, the second through-hole has been seted up to the opposite side of bone nail body, anchor sleeve pipe is installed to the outside screw thread of bone nail body, one side fixed mounting of anchor sleeve pipe has the solid fixed ring.
Through twisting the fixed block soon, can drive the bone screw body and rotate, extrude anchor sleeve pipe through promoting solid fixed ring, can conveniently make anchor sleeve pipe expand the operation, simple structure, the simple operation is comparatively convenient, stretches out the line from the second through-hole front end, passes the line of stretching out from first through-hole, can conveniently carry the line, conveniently connects the line when carrying out the operation.
Preferably, one end of the bone screw body is provided with a milling blade, and the milling blade is equally divided into three parts. The bone screw body can be conveniently screwed into a proper position through the milling blade.
Preferably, the outer side of the fixed block is fixedly provided with a second external thread, and the angle between the symmetrical edges of the fixed block is 20 degrees. The external equipment can be conveniently connected to the fixed block through the second external threads.
Preferably, a third through hole is formed in the bone screw body at one side of the second through hole, and the third through hole penetrates through the fixing block. The third through hole can be convenient for threading the wire.
Preferably, an expansion hole is formed in the outer side of the anchor sleeve, and penetrates through the anchor sleeve. The expansion hole can facilitate the expansion operation of the anchor sleeve.
Preferably, the outside of bone nail body fixed mounting has first external screw thread, and the inboard fixedly connected with of solid fixed ring is with first external screw thread engaged internal screw thread. The internal thread is meshed with the first external thread, so that the fixing ring can be pushed to extrude the anchor sleeve.
Compared with the prior art, the utility model has the beneficial effects that:
1. through being provided with the mutual cooperation between movable groove, first through-hole, second through-hole and the third through-hole, through penetrating the line from the third through-hole, make the line stretch out from second through-hole front end, pass the line of stretching out from first through-hole, penetrate the line from the rear end of second through-hole, wear out from the third through-hole, can conveniently carry the line, conveniently connect the line when carrying out the operation.
2. Through being provided with mutually supporting between bone nail body, anchor sleeve pipe and the inflation hole, through screwing up the anchor body, utilize internal thread and first external screw thread to mesh, can promote the anchor sleeve pipe and extrude, can make the anchor sleeve pipe expand the operation through the inflation hole, simple structure, the operation is comparatively convenient.
Drawings
FIG. 1 is a schematic view of the front view of the present utility model;
FIG. 2 is a schematic view of the front view of the present utility model;
FIG. 3 is a schematic top view of the bone screw body of the present utility model;
fig. 4 is a schematic side view in cross-section of the anchor cannula of the present utility model.
In the figure: 1. a bone screw body; 101. a first external thread; 102. milling the edge; 2. a fixed block; 201. a second external thread; 3. a movable groove; 301. a first through hole; 302. a second through hole; 303. a third through hole; 4. an anchor sleeve; 401. an expansion hole; 402. a fixing ring; 403. and (5) an internal thread.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.
Example 1
As shown in fig. 1, 2, 3 and 4, the expansion bone nail provided by the utility model comprises a bone nail body 1, a fixed block 2 and an anchor sleeve 4, wherein the fixed block 2 is fixedly arranged on one side of the bone nail body 1, a movable groove 3 is formed in the inner side of the bone nail body 1, a first through hole 301 is formed in one side of the movable groove 3, a second through hole 302 is formed in the other side of the bone nail body 1, the anchor sleeve 4 is arranged on the outer side thread of the bone nail body 1, and a fixed ring 402 is fixedly arranged on one side of the anchor sleeve 4;
the third through hole 303 is formed in the bone screw body 1 at one side of the second through hole 302, the third through hole 303 penetrates through the fixing block 2, the expansion hole 401 is formed in the outer side of the anchor sleeve 4, the expansion hole 401 penetrates through the anchor sleeve 4, the first external thread 101 is fixedly arranged on the outer side of the bone screw body 1, and the internal thread 403 meshed with the first external thread 101 is fixedly connected to the inner side of the fixing ring 402.
An expanded bone screw based on example 1 works on the principle: through screwing up fixed block 2, can drive bone nail body 1 and rotate, utilize internal thread 403 and first external screw thread 101 to mesh, can promote solid fixed ring 402 and extrude anchor sleeve 4, can conveniently make anchor sleeve 4 expand the operation through inflation hole 401, and simple structure, the operation is comparatively convenient, pass into the line from third through-hole 303, make the line stretch out from second through-hole 302 front end, pass the line that will stretch out from first through-hole 301, pass the line from the rear end of second through-hole 302, pass out from third through-hole 303, can conveniently carry the line, conveniently connect the line when carrying out the operation.
Example two
As shown in fig. 2, compared to the first embodiment, the present embodiment of the utility model further includes: one end of the bone screw body 1 is provided with a milling blade 102, the milling blade 102 is equally divided into three parts, the outer side of the fixed block 2 is fixedly provided with a second external thread 201, and the angle between the symmetrical edges of the fixed block 2 is 20 degrees.
In this embodiment, as shown in fig. 4, the milling blade 102 can be used to screw the bone screw body 1 into a proper position; as shown in fig. 2, external devices can be conveniently connected to the fixed block 2 through the second external screw thread 201.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
Claims (6)
1. The utility model provides an inflation bone nail, includes bone nail body (1), fixed block (2) and anchor sleeve pipe (4), its characterized in that: one side fixed mounting of bone nail body (1) has fixed block (2), movable groove (3) have been seted up to the inboard of bone nail body (1), first through-hole (301) have been seted up to one side of movable groove (3), second through-hole (302) have been seted up to the opposite side of bone nail body (1), anchor sleeve pipe (4) are installed to the outside screw thread of bone nail body (1), one side fixed mounting of anchor sleeve pipe (4) has solid fixed ring (402).
2. An expansion bone screw according to claim 1, wherein: one end of the bone screw body (1) is provided with a milling blade (102), and the milling blade (102) and the like are divided into three parts.
3. An expansion bone screw according to claim 1, wherein: the outer side of the fixed block (2) is fixedly provided with a second external thread (201), and the angle between the symmetrical edges of the fixed block (2) is 20 degrees.
4. An expansion bone screw according to claim 1, wherein: a third through hole (303) is formed in the bone nail body (1) at one side of the second through hole (302), and the third through hole (303) penetrates through the fixing block (2).
5. An expansion bone screw according to claim 1, wherein: an expansion hole (401) is formed in the outer side of the anchor sleeve (4), and the expansion hole (401) penetrates through the anchor sleeve (4).
6. An expansion bone screw according to claim 1, wherein: the bone screw is characterized in that a first external thread (101) is fixedly arranged on the outer side of the bone screw body (1), and an internal thread (403) meshed with the first external thread (101) is fixedly connected to the inner side of the fixing ring (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321005589.5U CN219895891U (en) | 2023-04-28 | 2023-04-28 | Expansion bone nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321005589.5U CN219895891U (en) | 2023-04-28 | 2023-04-28 | Expansion bone nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219895891U true CN219895891U (en) | 2023-10-27 |
Family
ID=88465420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321005589.5U Active CN219895891U (en) | 2023-04-28 | 2023-04-28 | Expansion bone nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219895891U (en) |
-
2023
- 2023-04-28 CN CN202321005589.5U patent/CN219895891U/en active Active
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| GR01 | Patent grant | ||
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