CN210931650U - Auxiliary bone cutting tool - Google Patents
Auxiliary bone cutting tool Download PDFInfo
- Publication number
- CN210931650U CN210931650U CN201920679391.2U CN201920679391U CN210931650U CN 210931650 U CN210931650 U CN 210931650U CN 201920679391 U CN201920679391 U CN 201920679391U CN 210931650 U CN210931650 U CN 210931650U
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- Prior art keywords
- cutting
- tool body
- tool
- osteotomy
- connecting bracket
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- Expired - Fee Related
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 52
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 238000012274 Preoperative evaluation Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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Abstract
The utility model provides an auxiliary osteotomy tool relates to medical instrument technical field, has solved and has not had appurtenance among the prior art, when directly cutting on the osteotomy site, appears cutting the unsafe technical problem in position easily. The device comprises a tool body, wherein at least two cutting guide structures are arranged on the tool body, and when the tool body is fixed on a deformed bone, the cutting tool can move along the cutting guide structures in the direction of cutting the deformed bone under the action of external force. The utility model is used for supplementary osteotomy.
Description
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to an auxiliary osteotomy tool is related to.
Background
Severe periarticular deformity can cause excessive wear of the articular surfaces, and in order to relieve pain, slow down the occurrence of secondary osteoarthritis, and restore lower limb force lines, the correction can be performed by multi-plane osteotomy + intramedullary nail or steel plate fixation of the extraarticular deformity. The preoperative evaluation and the operation plan of the traditional osteotomy are both based on a two-dimensional plane, however, when the complex osteotomy of the late-stage extra-articular deformity is corrected, the selection of the osteotomy site needs to be considered from the three-dimensional solids of the coronal plane, the sagittal plane and the cross section, after the osteotomy site is determined, a plurality of simulated osteotomy operations are carried out, cutting is directly carried out on the osteotomy site, and the cut bones are spliced and fixed.
The applicant has found that the prior art has at least the following technical problems:
in the prior art, when the bone is directly cut on an osteotomy site, inaccurate cutting position is easy to occur, and the treatment effect of the periarticular deformity is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an auxiliary osteotomy instrument to solve and do not have appurtenance among the prior art, when directly cutting on the osteotomy point, appear cutting the unsafe technical problem in position easily. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of supplementary osteotomy instrument, including the tool body, wherein, be provided with two at least cutting guide structure on the tool body, work as when the tool body is fixed on malformed skeleton, cutting tool can along under the exogenic action cutting guide structure is to the cutting the direction of malformed skeleton removes.
Optionally, the tool body forms the cutting guide structure along two free end surfaces in the length direction of the malformed bone.
Optionally, the tool body is provided with at least two cutting hole grooves, the cutting hole grooves are distributed on the tool body along the length direction of the malformed bone, and the cutting hole grooves form the cutting guide structure.
Optionally, the tool body includes a first fixing portion, a second fixing portion and a connecting portion, the first fixing portion and the second fixing portion are respectively connected to the deformed bone, the first fixing portion and the second fixing portion are connected to each other through the connecting portion, cutting hole grooves are formed between the first fixing portion and the connecting portion and between the second fixing portion and the connecting portion, and free end surfaces of the first fixing portion and the second fixing portion form the cutting guide structure.
Optionally, the first fixing portion, the second fixing portion and the connecting portion are all arc-shaped structures.
Optionally, at least two guide surfaces are arranged on the tool body, the guide surfaces are distributed on the tool body along the length direction of the malformed bone, and the guide surfaces form the cutting guide structure.
Optionally, the tool body includes a first connecting bracket, a second connecting bracket and a connecting rod, the first connecting bracket and the second connecting bracket are respectively connected to the deformed bone, the guide surfaces are disposed on the first connecting bracket and the second connecting bracket, and the guide surfaces of the first connecting bracket and the second connecting bracket are disposed oppositely and connected through the connecting rod.
Optionally, first linking bridge with second linking bridge all includes fixed plate and connecting plate, the fixed plate with connecting plate fixed connection just exists the contained angle between the two, the fixed plate with malformed skeleton is connected, the side of connecting plate is the spigot surface, first linking bridge the connecting plate with second linking bridge the connecting plate sets up relatively and passes through between the two the connecting rod is connected.
Optionally, the auxiliary osteotomy tool is made by a 3D printer.
Optionally, the tool body is made of nylon.
The utility model provides a pair of supplementary bone instrument of cutting is provided with two at least cutting guide structure on the tool body, and when the tool body was fixed on malformed skeleton, the cutting tool can remove to the direction of cutting malformed skeleton along cutting guide structure under the exogenic action. The utility model provides an auxiliary osteotomy tool, the cutting guide structure that will assist the osteotomy tool is corresponding with the osteotomy site on the bone of deformity, cutting tool cuts towards the osteotomy site on the bone of deformity along cutting guide structure, and can cut off the bone of deformity, under cutting guide structure's guide effect, the position of cutting the bone of deformity is more accurate, and then make therapeutic effect comparatively good, do not have appurtenance in order to solve prior art, when directly cutting on the osteotomy site, the unsafe technical problem in cutting position appears easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.
FIG. 1 is a schematic structural view of an auxiliary osteotomy tool provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of another side of the auxiliary osteotomy tool provided in the embodiment of the present invention;
fig. 3 is a schematic structural view of an auxiliary osteotomy tool and a malformed bone provided by an embodiment of the present invention;
FIG. 4 is a schematic structural view of another auxiliary osteotomy tool provided in an embodiment of the present invention;
FIG. 5 is a schematic view of another side of another auxiliary osteotomy tool according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of another auxiliary osteotomy tool and a deformed bone according to an embodiment of the present invention;
in figure 1, a tool body; 11. cutting the guide structure; 111. cutting a hole groove; 112. a guide surface; 12. a first fixed part; 13. a second fixed part; 14. a connecting portion; 15. a first connecting bracket; 151. a fixing plate; 1511. a screw post; 152. a connecting plate; 16. a second connecting bracket; 17. a connecting rod; 2. malformed bone.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of 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 utility model provides an auxiliary osteotomy tool, including tool body 1, wherein, be provided with two at least cutting guide structure 11 on the tool body 1, when tool body 1 fixes on malformed skeleton 2, cutting tool can remove along cutting guide structure 11 to the direction of cutting malformed skeleton 2 under the exogenic action, can cut off malformed skeleton 2 and tool body 1 together. The utility model provides an auxiliary osteotomy tool, cutting guide structure 11 with auxiliary osteotomy tool is corresponding with the osteotomy site on the skeleton of deformity 2, cutting tool cuts along cutting guide structure 11 towards the osteotomy site on the skeleton of deformity 2, and can cut off skeleton of deformity 2, under cutting guide structure 11's guide effect, the position of cutting skeleton of deformity 2 is more accurate, and then make the treatment better, do not have auxiliary tool in order to solve prior art, when direct cutting on the osteotomy site, the unsafe technical problem in cutting position appears easily.
As an alternative embodiment, the tool body 1 forms the cutting guide 11 along both free end surfaces in the length direction of the deformed bone 2. The tool body 1 is provided with at least two cutting hole grooves 111, the cutting hole grooves 111 are distributed on the tool body 1 along the length direction of the deformed bone 2, and the cutting hole grooves 111 form the cutting guide 11. After the cutting tool cuts the deformed bone 2 along the two free end surfaces and the two cutting hole grooves 111, the deformed bone 2 is divided into five sections of bones, the bones which are preset to be discarded are removed, and the remaining bones are spliced and fixed, so that the treatment effect can be achieved.
As an alternative embodiment, the tool body 1 includes a first fixing portion 12, a second fixing portion 13 and a connecting portion 14, the first fixing portion 12 and the second fixing portion 13 are respectively connected with the deformed bone 2, the first fixing portion 12 and the second fixing portion 13 are connected through the connecting portion 14, a cutting hole groove 111 is provided between the first fixing portion 12 and the connecting portion 14 and between the second fixing portion 13 and the connecting portion 14, and free end surfaces of the first fixing portion 12 and the second fixing portion 13 form the cutting guide structure 11. The cutting tool cuts the deformed bone 2 along the two free end surfaces and the two cutting hole grooves 111, generally the bones corresponding to the first fixing part 12 and the second fixing part 13 are discarded, and the rest three sections of bones are spliced and fixed.
In an alternative embodiment, the first fixing portion 12, the second fixing portion 13 and the connecting portion 14 are all arc-shaped structures so as to be connected with the deformed bone 2 in a matching manner. The malformed bone 2 is in a bent structure, and the tool body 1 is fixedly arranged at the bent part of the malformed bone 2 and is matched with the malformed bone 2, namely, the tool body 1 is also in the bent structure and has the same bending degree as the malformed bone 2.
As an alternative embodiment, at least two guiding surfaces 112 are provided on the tool body 1, the guiding surfaces 112 are distributed on the tool body 1 along the length direction of the malformed bone 2, and the guiding surfaces 112 form the cutting guide 11.
As an alternative embodiment, the tool body 1 includes a first connecting bracket 15, a second connecting bracket 16 and a connecting rod 17, the first connecting bracket 15 and the second connecting bracket 16 are respectively connected with the deformed bone 2, the first connecting bracket 15 and the second connecting bracket 16 are respectively provided with a guide surface 112, and the guide surface 112 of the first connecting bracket 15 and the guide surface 112 of the second connecting bracket 16 are oppositely arranged and connected through the connecting rod 17. The cutting tool cuts the connecting rod 17 together with the deformed bone 2 along the direction of the guide surface 112, and the connecting rod 17 is provided in a rod-like structure in order to reduce the area of the cutting tool body 1 and further reduce the time taken for cutting the cutting tool body 1.
As an alternative embodiment, each of the first connecting bracket 15 and the second connecting bracket 16 includes a fixing plate 151 and a connecting plate 152, the fixing plate 151 is fixedly connected to the connecting plate 152 with an included angle therebetween, the fixing plate 151 is connected to the deformed bone 2, a screw post 1511 is disposed on the fixing plate 151, a screw passes through the screw post 1511 and is connected to the deformed bone 2, the side surface of the connecting plate 152 is the guide surface 112, and the connecting plate 152 of the first connecting bracket 15 and the connecting plate 152 of the second connecting bracket 16 are disposed opposite to each other and connected to each other through a connecting rod 17. The cutting tool cuts the deformed bone 2 along the two guide surfaces 112, cuts the deformed bone 2 into three parts, removes the middle bone, and splices and fixes the upper and lower bones.
As an alternative embodiment, the auxiliary osteotomy tool is made by a 3D printer. The auxiliary osteotomy tool is of an integrally formed structure.
As an alternative embodiment, the material that the tool body 1 may be made of is nylon.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An auxiliary osteotomy tool, characterized in that it comprises a tool body (1), wherein,
the tool body (1) is provided with at least two cutting guide structures (11), and when the tool body (1) is fixed on the deformed bone (2), the cutting tool can move along the cutting guide structures (11) in the direction of cutting the deformed bone (2) under the action of external force.
2. The osteotomy aid tool according to claim 1, characterized in that said tool body (1) forms said cutting guide (11) along two free end surfaces of said malformed bone (2) in a length direction thereof.
3. The auxiliary osteotomy tool according to claim 1, wherein said tool body (1) is provided with at least two cutting hole slots (111), said cutting hole slots (111) being distributed on said tool body (1) along a length direction of said malformed bone (2), said cutting hole slots (111) forming said cutting guide (11).
4. The osteotomy aid according to any one of claims 1-3, wherein said tool body (1) comprises a first fixation portion (12), a second fixation portion (13) and a connection portion (14), said first fixation portion (12) and said second fixation portion (13) being respectively connected with said malformed bone (2), said first fixation portion (12) and said second fixation portion (13) being connected by said connection portion (14), cutting hole slots (111) being provided between said first fixation portion (12) and said connection portion (14) and between said second fixation portion (13) and said connection portion (14), free end surfaces of both said first fixation portion (12) and said second fixation portion (13) forming said cutting guide (11).
5. The osteotomy aid of claim 4, wherein said first fixing portion (12), said second fixing portion (13) and said connecting portion (14) are all of arcuate configuration.
6. The osteotomy aid tool according to claim 1, characterized in that said tool body (1) is provided with at least two guiding surfaces (112), said guiding surfaces (112) being distributed on said tool body (1) along a length direction of said malformed bone (2), said guiding surfaces (112) forming said cutting guide (11).
7. The osteotomy aid of claim 6, wherein said tool body (1) comprises a first connecting bracket (15), a second connecting bracket (16) and a connecting rod (17), said first connecting bracket (15) and said second connecting bracket (16) being respectively connected with said malformed bone (2), said guide surfaces (112) being provided on each of said first connecting bracket (15) and said second connecting bracket (16), said guide surfaces (112) of said first connecting bracket (15) and said guide surfaces (112) of said second connecting bracket (16) being disposed opposite each other and connected by said connecting rod (17).
8. The osteotomy aid of claim 7, wherein said first connecting bracket (15) and said second connecting bracket (16) each comprise a fixing plate (151) and a connecting plate (152), said fixing plate (151) being fixedly connected to said connecting plate (152) with an included angle therebetween, said fixing plate (151) being connected to said deformed bone (2), said connecting plate (152) being flanked by said guide surfaces (112), said connecting plate (152) of said first connecting bracket (15) and said connecting plate (152) of said second connecting bracket (16) being disposed opposite to each other and connected thereto by said connecting rod (17).
9. The auxiliary osteotomy tool of claim 1, wherein said auxiliary osteotomy tool is fabricated from a 3D printer.
10. The osteotomy aid according to claim 1, characterized in that said tool body (1) is made of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920679391.2U CN210931650U (en) | 2019-05-13 | 2019-05-13 | Auxiliary bone cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920679391.2U CN210931650U (en) | 2019-05-13 | 2019-05-13 | Auxiliary bone cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210931650U true CN210931650U (en) | 2020-07-07 |
Family
ID=71386154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920679391.2U Expired - Fee Related CN210931650U (en) | 2019-05-13 | 2019-05-13 | Auxiliary bone cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210931650U (en) |
-
2019
- 2019-05-13 CN CN201920679391.2U patent/CN210931650U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |