CN111616771A - Adjustable bone cutter - Google Patents
Adjustable bone cutter Download PDFInfo
- Publication number
- CN111616771A CN111616771A CN202010599671.XA CN202010599671A CN111616771A CN 111616771 A CN111616771 A CN 111616771A CN 202010599671 A CN202010599671 A CN 202010599671A CN 111616771 A CN111616771 A CN 111616771A
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- Prior art keywords
- knob
- osteotome
- sliding block
- osteotomy
- adjustable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 210000000988 bone and bone Anatomy 0.000 title abstract description 9
- 238000000034 method Methods 0.000 abstract description 11
- 210000000689 upper leg Anatomy 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 6
- 210000000629 knee joint Anatomy 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1675—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The embodiment of the invention provides an adjustable osteotome, which comprises an osteotome body, a sliding block and an adjusting component, wherein the sliding block is arranged on the osteotome body; the adjusting assembly is arranged in the osteotome body, the sliding block is arranged at one end of the adjusting assembly, and the sliding block is movably connected to the bottom of the osteotome body; the bottom of the osteotomy body is preset with a movable space for the sliding block to move. When in use, the adjusting knob is pressed and rotated to rotate according to the requirement compared with the dial gauge. Thereby adjust knob drives the location knob and rotates, and when the location knob was rotatory, the eccentric wheel on the location knob drove the sliding block removal simultaneously, and the sliding block rectilinear movement. The invention can realize the adjustment of the osteotome between the anterior condyle and the posterior condyle at the distal end of the femur by the rotation of the adjusting knob, and is convenient to use. In the operation process, a doctor can cut bones according to specific conditions, and only needs to rotate the adjusting knob, so that the operation risk and the pain of a patient are greatly reduced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an adjustable osteotomy device.
Background
In a femoral osteotomy of a knee joint, the osteotomy is typically performed using an osteotomy instrument. One surface of the osteotomy is attached to the femur, and the osteotomy is realized through an osteotomy groove on the osteotomy. Knee joint replacement is used as a treatment means for treating osteoarthritis and other diseases, has been developed clinically for many years, and the market mainly adopts surface knee joint replacement surgery, wherein the femur and the tibia of a patient are cut, and after a diseased part is removed, an artificial knee joint prosthesis is arranged. The osteotomy is used as an important surgical instrument and is used as a knee joint surgical tool to cut off redundant bone positions on the femur so as to match with a prosthesis.
In the existing market, an intercondylar osteotomy guider is disclosed, which comprises an osteotomy guiding component, a guiding part and an osteotomy positioning component, wherein the guiding part is formed on the outer side wall of the osteotomy part, the osteotomy positioning component is sleeved on the periphery of the osteotomy guiding component and is pivoted with one end of the osteotomy guiding component, the osteotomy positioning component comprises an osteotomy avoiding part sleeved on the periphery of the osteotomy part and a positioning part formed on the outer side wall of the osteotomy avoiding part, the osteotomy positioning component has a closed position and an open position relative to the osteotomy guiding component, and at the open position, an included angle is formed between the plane where the osteotomy positioning component is located and the plane where the osteotomy guiding component is located so that the guiding part can slide along a preset track on a fixed base, and the osteotomy part is driven to move; in the closed position, the positioning portion can be positioned on the fixation base such that the plane of the osteotomy positioning member coincides with the plane of the osteotomy guide member.
In the existing osteotome, a hole site for fixing the osteotome is drilled at the distal end of the femur firstly in an operation, a nail position is arranged on the osteotome, and the nail position is arranged in the hole site at the distal end of the femur and then the osteotome is fixed, so that the electric saw can swing on a slot position of the osteotome to cut the bone. However, the existing osteotome cannot move, so that a doctor cannot cut bones according to conditions in an operation, thereby influencing the operation and increasing the pain of a patient.
Disclosure of Invention
In view of the above, embodiments of the present invention have been developed to provide an adjustable osteotome that overcomes, or at least partially solves, the above-mentioned problems.
In order to solve the problems, the embodiment of the invention discloses an adjustable osteotome, which comprises an osteotome body, a sliding block and an adjusting component, wherein the sliding block is arranged on the osteotome body;
the adjusting assembly is arranged in the osteotome body, the sliding block is arranged at one end of the adjusting assembly, and the sliding block is movably connected to the bottom of the osteotome body;
the bottom of the osteotomy body is preset with a movable space for the sliding block to move.
Preferably, the osteotome body is provided with a cylindrical hole for mounting the adjusting assembly, and the cylindrical hole is formed in the top of the sliding block.
Preferably, the bottom of the osteotome body is provided with screens corresponding to two ends of the sliding block, and one side of the bottom of the osteotome body, which is close to the cylindrical hole, is provided with a bolt hole; the clamping position is arranged along the moving direction of the sliding block and is a linear clamping groove; the sliding block is movably connected to the bottom of the osteotome body through the clamping position and the bolt hole.
Preferably, the adjusting assembly comprises an adjusting knob, a positioning knob and a spring; one end of the adjusting knob penetrates through the spring, and the positioning knob is arranged outside the spring; the positioning knob passes through the cylindrical hole.
Preferably, the adjusting knob comprises a knob cap and a knob rod connected with the knob cap; the knob cap is arranged at one end of the cylindrical hole, the knob rod penetrates through the spring, and one end, far away from the knob cap, of the knob rod is connected with the positioning knob.
Preferably, the bottom of the positioning knob is provided with a rod groove and an eccentric wheel arranged on one side of the rod groove; the rod groove is connected with the bottom of the knob rod; the eccentric wheel is connected with the sliding block.
Preferably, the sliding block is provided with an eccentric groove matched with the eccentric wheel.
Preferably, the osteotome body is provided with a dial at the periphery of the cylindrical hole, and the dial is matched with the adjusting knob.
Preferably, the osteotome body is provided with an osteotome slot penetrating through the osteotome body.
Preferably, nail holes are formed in two ends of the osteotomy body.
The embodiment of the invention has the advantages that the adjustable osteotome comprises an osteotome body, a sliding block and an adjusting component; the adjusting assembly is arranged in the osteotome body, the sliding block is arranged at one end of the adjusting assembly, and the sliding block is movably connected to the bottom of the osteotome body; the bottom of the osteotomy body is preset with a movable space for the sliding block to move. When in use, the adjusting knob is pressed and rotated to rotate according to the requirement compared with the dial gauge. Thereby adjust knob drives the location knob and rotates, and when the location knob was rotatory, the eccentric wheel on the location knob drove the sliding block removal simultaneously, and the sliding block rectilinear movement. The invention can realize the adjustment of the osteotome between the anterior condyle and the posterior condyle at the distal end of the femur by the rotation of the adjusting knob, and is convenient to use. In the operation process, a doctor can cut bones according to specific conditions, and only needs to rotate the adjusting knob, so that the operation risk and the pain of a patient are greatly reduced.
Drawings
FIG. 1 is an exploded view of an adjustable osteotome of the present invention;
FIG. 2 is a schematic structural view of an embodiment of an adjustable osteotomy instrument of the present invention;
FIG. 3 is a schematic cross-sectional view of part A of an adjustable osteotomy device of the present invention;
figure 4 is a schematic view of a portion B of an adjustable osteotomy instrument of the present invention.
1. A osteotomy body; 11. nailing holes; 12. a osteotomy slot; 2. a slider; 3. an adjustment assembly; 31. adjusting a knob; 32. a spring; 33. and positioning the knob.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
With reference to fig. 1 to 4, there are shown schematic views of a specific embodiment of an adjustable osteotome according to the present invention, specifically comprising an osteotome body 1, a sliding block 2 and an adjustment assembly 3; the adjusting component 3 is arranged in the osteotome body 1, the sliding block 2 is arranged at one end of the adjusting component 3, and the sliding block 2 is movably connected to the bottom of the osteotome body 1; the bottom of the osteotomy body 1 is preset with a movable space for the sliding block 2 to move.
One of the core ideas of the embodiment of the invention is that the adjustable osteotome comprises an osteotome body 1, a sliding block 2 and an adjusting component 3; the adjusting component 3 is installed inside the osteotome body 1, the sliding block 2 is arranged at one end of the adjusting component 3, and the sliding block 2 is movably connected to the bottom of the osteotome body 1; the bottom of the osteotomy body 1 is preset with a movable space for the sliding block 2 to move. In use, the adjustment knob 31 is pressed and rotated to rotate the scale as required. Therefore, the adjusting knob 31 drives the positioning knob 33 to rotate, and when the positioning knob 33 rotates, the eccentric wheel on the positioning knob 33 simultaneously drives the sliding block 2 to move, and the sliding block 2 moves linearly. The invention, namely the rotation of the adjusting knob 31, can realize the adjustment of the osteotome between the anterior condyle and the posterior condyle of the distal femur, and is convenient to use. In the operation process, a doctor can cut bones according to specific conditions, and only the adjusting knob 31 needs to be rotated, so that the operation risk and the pain of a patient are greatly reduced.
The invention discloses an adjustable osteotome, which comprises an osteotome body 1, a sliding block 2 and an adjusting component 3; the adjusting component 3 is installed inside the osteotome body 1, the sliding block 2 is arranged at one end of the adjusting component 3, and the sliding block 2 is movably connected to the bottom of the osteotome body 1; the bottom of the osteotomy body 1 is preset with a movable space for the sliding block 2 to move.
The osteotome body 1 is provided with a cylindrical hole, the osteotome body 1 is provided with a cylindrical hole for installing the adjusting component 3, and the cylindrical hole is formed in the top of the sliding block 2.
The bottom of the osteotome body 1 is provided with screens corresponding to the two ends of the sliding block 2, and one side of the bottom of the osteotome body 1, which is close to the cylindrical hole, is provided with a bolt hole; the clamping position is arranged along the moving direction of the sliding block 2 and is a linear clamping groove; the sliding block 2 is movably connected to the bottom of the osteotome body 1 through the clamping position and the bolt hole. The sliding block 2 can move on the clamping position to achieve the effect of changing the osteotomy position and avoid the pain of secondary punching of a patient.
The adjusting component 3 comprises an adjusting knob 31, a positioning knob 33 and a spring 32; one end of the adjusting knob 31 penetrates through the spring 32, and the positioning knob 33 is arranged outside the spring 32; the positioning knob 33 penetrates through the cylindrical hole, the adjusting assembly 3 is installed in the cylindrical hole, the adjusting knob 31 can be pressed down and rotated, so that the positioning knob 33 is driven to rotate, the sliding block 2 is further driven to move, the eccentric wheel of the positioning knob 33 can change the rotating motion into linear motion, and the sliding block 2 moves back and forth on the osteotome body 1.
The adjusting knob 31 comprises a knob cap and a knob rod connected with the knob cap; the knob cap is arranged at one end of the cylindrical hole, the knob rod penetrates through the spring 32, and one end, far away from the knob cap, of the knob rod is connected with the positioning knob 33. The knob cap of the adjustment knob 31 is disposed on the cylindrical hole and matches with the dial, and when the adjustment knob 31 is rotated, the scale on the dial has a "1", i.e., moves by 1 mm.
The bottom of the positioning knob 33 is provided with a rod groove and an eccentric wheel arranged on one side of the rod groove; the rod groove is connected with the bottom of the knob rod and used for fixing the knob rod; the eccentric wheel is connected with the sliding block 2 and used for moving the sliding block 2, so that the osteotome moves between the front condyle and the rear condyle of the distal end of the femur.
The sliding block 2 is provided with an eccentric groove matched with the eccentric wheel, the eccentric wheel is clamped into the eccentric groove, the eccentric wheel means that the center of the wheel is not at a rotating point, generally, the wheel is a round wheel, when the round wheel does not rotate around the center of the wheel, the wheel becomes the eccentric wheel, and the eccentric wheel is also one of the cams.
The osteotome body 1 is provided with a dial disc around the cylindrical hole, and the dial disc is matched with the adjusting knob 31.
Referring to fig. 4, which shows a schematic B-section of an adjustable osteotome of the present invention, the osteotome body 1 is provided with an osteotomy slot 12 extending through said osteotome body 1, the osteotomy slot 12 being for an osteotomy of an electric saw.
Two ends of the osteotome body 1 are provided with nail holes 11, the nail holes 11 are used for fixing the osteotome and the femur, and the nail holes 11 are used for installing bone nails and locking the adjustable osteotome to the human femur.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The present invention provides an adjustable osteotome, which is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An adjustable osteotome is characterized by comprising an osteotome body, a sliding block and an adjusting component;
the adjusting assembly is arranged in the osteotome body, the sliding block is arranged at one end of the adjusting assembly, and the sliding block is movably connected to the bottom of the osteotome body;
the bottom of the osteotomy body is preset with a movable space for the sliding block to move.
2. The adjustable osteotome defined in claim 1 wherein said osteotome body defines a cylindrical opening for mounting said adjustment assembly, said cylindrical opening being disposed atop said sliding block.
3. The adjustable osteotome defined in claim 2 wherein said osteotome body has detents at a bottom thereof corresponding to ends of said slider, and said osteotome body has a latch aperture at a bottom thereof adjacent said cylindrical aperture;
the clamping position is arranged along the moving direction of the sliding block and is a linear clamping groove;
the sliding block is movably connected to the bottom of the osteotome body through the clamping position and the bolt hole.
4. The adjustable osteotomy defined in claim 2 wherein said adjustment assembly comprises an adjustment knob, a positioning knob, and a spring;
one end of the adjusting knob penetrates through the spring, and the positioning knob is arranged outside the spring;
the positioning knob passes through the cylindrical hole.
5. The adjustable osteotome defined in claim 4, wherein said adjustment knob includes a knob cap and a knob stem connected to said knob cap;
the knob cap is arranged at one end of the cylindrical hole, the knob rod penetrates through the spring, and one end, far away from the knob cap, of the knob rod is connected with the positioning knob.
6. The adjustable osteotomy defined in claim 5 wherein said positioning knob has a stem slot at a bottom thereof and an eccentric disposed on one side of said stem slot;
the rod groove is connected with the bottom of the knob rod; the eccentric wheel is connected with the sliding block.
7. The adjustable osteotome defined in claim 6 wherein said sliding block is provided with an eccentric slot adapted to said eccentric.
8. The adjustable osteotome defined in claim 4 wherein said osteotome body is provided with a dial disposed about said cylindrical bore, said dial being adapted to fit said adjustment knob.
9. The adjustable osteotomy defined in claim 8 wherein said osteotomy body is provided with an osteotomy slot therethrough.
10. The adjustable osteotomy defined in any one of claims 1-9 wherein said osteotomy body is provided with nail holes at each end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599671.XA CN111616771A (en) | 2020-06-28 | 2020-06-28 | Adjustable bone cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010599671.XA CN111616771A (en) | 2020-06-28 | 2020-06-28 | Adjustable bone cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111616771A true CN111616771A (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010599671.XA Pending CN111616771A (en) | 2020-06-28 | 2020-06-28 | Adjustable bone cutter |
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| Country | Link |
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| CN (1) | CN111616771A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112155652A (en) * | 2020-09-28 | 2021-01-01 | 北京市春立正达医疗器械股份有限公司 | Adjustable osteotomy guider |
| CN112754595A (en) * | 2021-01-21 | 2021-05-07 | 北京力达康科技有限公司 | Single-side eccentric adjustment type osteotomy device for femoral condyle |
| CN112826568A (en) * | 2021-01-04 | 2021-05-25 | 南昌大学第二附属医院 | Femoral extramedullary positioning osteotomy device in knee joint replacement and using method thereof |
| CN114848083A (en) * | 2022-05-10 | 2022-08-05 | 北京市春立正达医疗器械股份有限公司 | Osteotomy guider |
| CN117064485A (en) * | 2023-10-16 | 2023-11-17 | 北京壹点灵动科技有限公司 | osteotomy device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060015966A (en) * | 2004-08-16 | 2006-02-21 | 서재곤 | Cutter for tibial |
| US20110046629A1 (en) * | 2009-08-20 | 2011-02-24 | Green Ii John Michael | Adjustable femoral resection guide |
| KR20110067508A (en) * | 2009-12-14 | 2011-06-22 | 서경석 | Tibia cutter |
| CN107007319A (en) * | 2017-05-18 | 2017-08-04 | 聂宇 | Shin bone list condyle osteotomy device |
| CN208822874U (en) * | 2017-12-29 | 2019-05-07 | 北京纳通医学科技研究院有限公司 | A kind of osteotomy device |
| CN110301958A (en) * | 2018-03-27 | 2019-10-08 | 苏州微创关节医疗科技有限公司 | Osteotomy device |
| CN212346648U (en) * | 2020-06-28 | 2021-01-15 | 经纬医疗器材制造（深圳）有限公司 | Adjustable bone cutter |
-
2020
- 2020-06-28 CN CN202010599671.XA patent/CN111616771A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060015966A (en) * | 2004-08-16 | 2006-02-21 | 서재곤 | Cutter for tibial |
| US20110046629A1 (en) * | 2009-08-20 | 2011-02-24 | Green Ii John Michael | Adjustable femoral resection guide |
| KR20110067508A (en) * | 2009-12-14 | 2011-06-22 | 서경석 | Tibia cutter |
| CN107007319A (en) * | 2017-05-18 | 2017-08-04 | 聂宇 | Shin bone list condyle osteotomy device |
| CN208822874U (en) * | 2017-12-29 | 2019-05-07 | 北京纳通医学科技研究院有限公司 | A kind of osteotomy device |
| CN110301958A (en) * | 2018-03-27 | 2019-10-08 | 苏州微创关节医疗科技有限公司 | Osteotomy device |
| CN212346648U (en) * | 2020-06-28 | 2021-01-15 | 经纬医疗器材制造（深圳）有限公司 | Adjustable bone cutter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112155652A (en) * | 2020-09-28 | 2021-01-01 | 北京市春立正达医疗器械股份有限公司 | Adjustable osteotomy guider |
| CN112826568A (en) * | 2021-01-04 | 2021-05-25 | 南昌大学第二附属医院 | Femoral extramedullary positioning osteotomy device in knee joint replacement and using method thereof |
| CN112754595A (en) * | 2021-01-21 | 2021-05-07 | 北京力达康科技有限公司 | Single-side eccentric adjustment type osteotomy device for femoral condyle |
| CN114848083A (en) * | 2022-05-10 | 2022-08-05 | 北京市春立正达医疗器械股份有限公司 | Osteotomy guider |
| CN117064485A (en) * | 2023-10-16 | 2023-11-17 | 北京壹点灵动科技有限公司 | osteotomy device |
| CN117064485B (en) * | 2023-10-16 | 2024-03-01 | 北京壹点灵动科技有限公司 | Osteotomy device |
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