CN114515181A - Customized femoral intercondylar osteotomy device - Google Patents
Customized femoral intercondylar osteotomy device Download PDFInfo
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- CN114515181A CN114515181A CN202011311183.0A CN202011311183A CN114515181A CN 114515181 A CN114515181 A CN 114515181A CN 202011311183 A CN202011311183 A CN 202011311183A CN 114515181 A CN114515181 A CN 114515181A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
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- 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
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Abstract
The invention provides a customized femoral intercondylar osteotomy device, which belongs to the field of knee joint replacement surgical instruments and comprises four-direction guide plates, inner and outer side positioning plates, inner and outer side limiting columns and inner and outer side nail tracks, wherein the four-direction guide plates are used for realizing osteotomy operation in four directions, the inner and outer side positioning plates are symmetrically arranged on two sides of the four-direction guide plates, the inner and outer side limiting columns are fixed on the inner and outer side positioning plates, the inner and outer side limiting columns are distributed on two sides of the four-direction guide plates, the inner and outer side nail tracks are distributed on the inner and outer side positioning plates, and the nail tracks on the same side are arranged on different sagittal planes. The invention has simple structure, convenient operation, high positioning precision, convenient repeated design and manufacture, effectively reduced design difficulty and reduced cost, and simultaneously can realize osteotomy operation in four directions, furthest reduce the volume of parts on the premise of ensuring functions and mechanical properties, and reduce material loss in the printing process.
Description
Technical Field
The invention belongs to the field of knee joint replacement surgical instruments, and particularly relates to a customized femoral intercondylar osteotomy device.
Background
In knee replacement surgery, intercondylar osteotomies of the femur are common surgical procedures, and the shape of the intercondylar osteotomies also varies according to the structure of the femoral prosthesis, but the osteotomies are usually performed in the horizontal direction and the anterior oblique direction. The prior art scheme is based on the traditional manufacturing technology, the design of the osteotomy instrument is generally to split the intercondylar osteotomy step and integrate the intercondylar osteotomy step on the multifunctional osteotomy navigation device, and the design mode is very mature and is verified by the market.
However, for the personalized knee joint implantation surgery, since the prosthesis is designed according to the structure and damage condition of the knee joint of the patient, the bone cutting scheme in the surgery can be changed according to different patients, and therefore, a personalized surgical instrument is needed to assist in bone cutting in the surgery. At present, an additive manufacturing technology is usually adopted to produce personalized surgical instruments, but the design mode and the structural characteristics of the traditional surgical instruments are usually not suitable for direct printing, and the main reasons are as follows: firstly, the osteotomy grooves of the multifunctional osteotomy instrument are complex in design, more in grooving direction and crossed, the structure is difficult to ensure the printing quality balance of each osteotomy groove by adopting additive manufacturing and processing, and subsequent processing procedures are required to be added; the traditional instrument has larger volume, and the material waste and the cost are increased by adopting an additive manufacturing mode; personalized surgical instruments need to be designed and adjusted according to individual characteristics of patients, and the traditional intercondylar osteotomy instrument is complex in structure, high in difficulty and high in cost in repeated design.
By adopting the personalized design concept and the processing mode of additive manufacturing, a technical scheme capable of solving the problems of complicated structure, complicated operation process, high manufacturing cost and the like of the intercondylar osteotomy navigation instrument in the knee joint replacement operation is needed.
Disclosure of Invention
In view of the above, the present invention is directed to a customized femoral intercondylar osteotomy device, which can solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: the utility model provides a customization type femoral intercondylar osteotomy ware, includes four directions deflector, inside and outside locating plate, the spacing post of inside and outside and inside lateral nail way, four directions deflectors are used for realizing the osteotomy operation of four directions, and its bilateral symmetry is provided with inside and outside locating plate, the spacing post of inside and outside is fixed in on the inside and outside locating plate, simultaneously the spacing post distribution of inside and outside is in the both sides of four directions deflector, inside and outside nail way distribute in on the inside and outside locating plate, and the setting of homonymy nail way is on the sagittal plane of difference.
Furthermore, the outer wall edge of the intercondylar medial osteotomy guide plate extends along the horizontal direction to form a medial boss, and the outer wall edge of the intercondylar lateral osteotomy guide plate extends along the horizontal direction to form a lateral boss.
Furthermore, the wall surface heights of the intercondylar medial osteotomy guide plate and the intercondylar lateral osteotomy guide plate are respectively 8-20 mm;
the edges of the intercondylar horizontal osteotomy guide plate, the intercondylar anterior oblique osteotomy guide plate and the intercondylar medial osteotomy guide plate are respectively provided with a 1-2mm gap;
the edge of the intercondylar horizontal osteotomy guide plate, the edge of the intercondylar anterior oblique osteotomy guide plate and the edge of the intercondylar lateral osteotomy guide plate are respectively provided with a gap of 1-2 mm.
Furthermore, the four-direction guide plate is of a symmetrical structure in a rectangular frame shape and composed of an intercondylar horizontal osteotomy guide plate, an intercondylar anterior oblique osteotomy guide plate, an intercondylar medial osteotomy guide plate and an intercondylar lateral osteotomy guide plate, one end of the intercondylar medial osteotomy guide plate is connected with the intercondylar lateral osteotomy guide plate through a rear lateral wall plate, the other end of the intercondylar medial osteotomy guide plate is connected with the intercondylar lateral osteotomy guide plate through the horizontally arranged intercondylar horizontal osteotomy guide plate, the rear end of the intercondylar anterior oblique osteotomy guide plate is connected with the rear lateral wall plate through a horizontal transverse plate, and the front end of the intercondylar anterior oblique osteotomy guide plate is arranged in an oblique manner.
Further, the inside and outside locating plate includes inboard horizontal positioning board, inboard preceding locating plate to one side, outside horizontal positioning board and outside preceding locating plate to one side, inboard horizontal positioning board and inboard preceding locating plate to one side link to each other and the two is formed with the contained angle in the department that links to each other, simultaneously the two lower terminal surface respectively with the lower terminal surface parallel and level of inboard osteotomy deflector between the condyle, outside horizontal positioning board and outside preceding locating plate to one side link to each other and the two is formed with the contained angle in the department that links to each other, simultaneously the two lower terminal surface respectively with the lower terminal surface parallel and level of outside osteotomy deflector between the condyle.
Furthermore, the inner and outer side limiting columns comprise inner side limiting columns and outer side limiting columns, the inner side limiting columns and the outer side limiting columns are of conical columnar structures, and meanwhile the outer surfaces of the bone parts inserted into the inner side limiting columns and the outer side limiting columns are in smooth transition.
Furthermore, the inner side limiting column and the outer side limiting column are respectively of a thin-wall structure.
Furthermore, the port department of the spacing post in inboard and the spacing post in the outside is provided with groove structure respectively, is used for instructing the position of the spacing post in inboard and the spacing post in the outside.
Further, the inside and outside nail way includes inboard horizontal plane nail way, outside horizontal plane nail way and outside front inclined plane nail way, inboard horizontal plane nail way sets up on the inboard horizontal positioning board, outside horizontal plane nail way sets up on the outside horizontal positioning board, outside front inclined plane nail way sets up on the outside front inclined positioning board, simultaneously outside horizontal plane nail way and outside front inclined plane nail way's mounted position sets up on the sagittal plane of difference.
Furthermore, the depth of the nail path of the inner and outer nail paths is 3-5mm greater than the thickness of the inner and outer positioning plates.
Compared with the prior art, the customized femoral intercondylar osteotomy device has the following advantages:
(1) the printing machine is of a metal plate-like structure as a whole, so that the volume of parts is greatly reduced on the premise of ensuring the functions and the mechanical properties, and the material loss in the printing process is reduced;
(2) the four-direction guide plate in the middle is of a symmetrical structure in a rectangular frame shape, so that osteotomy operation in four directions can be realized, the rectangular frame reasonably limits the swing range of the cutter in the osteotomy process, and redundant bone is prevented from being damaged;
(3) the structure is simple, and repeated design is facilitated, so that the design difficulty is effectively reduced, and the cost is also reduced;
(4) according to the invention, after the guide plate is accurately placed in the operation, good coverage can be realized, the balance of bone surface pressure in the osteotomy process is ensured, and the stability of the guide plate is enhanced;
(5) the existence of the spacing post of inside and outside can realize quick location in the art, prevents simultaneously to put nail in-process deflector position and takes place the skew, easy operation, and positioning accuracy is high.
(6) The invention has simple structure and low design difficulty, and is suitable for the traditional processing mode and the processing mode of additive manufacturing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a customized femoral intercondylar osteotomy device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a customized intercondylar osteotomy device from a different perspective than that of FIG. 1;
FIG. 3 is a front view of a custom-made femoral intercondylar osteotomy according to an embodiment of the present invention;
FIG. 4 is a top view of a custom-made femoral intercondylar osteotomy instrument according to an embodiment of the present invention;
FIG. 5 is a schematic sectional view A-A of FIG. 3;
FIG. 6 is a schematic view of the placement of the customized femoral intercondylar osteotomy according to an embodiment of the present invention;
fig. 7 is an anterior view of a placement effect of a custom-made femoral intercondylar osteotomy instrument according to an embodiment of the present invention.
Description of reference numerals:
four-direction guide plates: 10. an intercondylar horizontal osteotomy guide plate; 20. an intercondylar anterior oblique osteotomy guide plate; 30. an intercondylar medial osteotomy guide plate; 40. an intercondylar lateral osteotomy guide plate;
210. a horizontal transverse plate; 220. a rear side wall panel;
inner and outer positioning plates: 320. an inner side horizontal positioning plate; 330. an inner side front inclined positioning plate; 420. an outer horizontal positioning plate; 430. an outer front inclined positioning plate;
inner and outer bosses: 310. an inner boss; 410. an outer boss;
inner and outer side limit columns: 321. an inner side limiting column; 421. an outer side limiting column;
inner and outer nail paths: 322. an inner horizontal nail path; 422. an outer horizontal nail path; 431. an outer front inclined nail path;
bone cutter placement: 100. a distal femur horizontal osteotomy face; 101. an inner side limiting hole; 102. an outer side limiting hole; 200. the anterior oblique osteotomy of femur.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-7, the invention relates to a customized femoral intercondylar osteotomy device, which comprises a four-direction guide plate, inner and outer positioning plates, inner and outer limiting columns, and inner and outer nail tracks, wherein the four-direction guide plate is used for realizing osteotomy operation in four directions, the inner and outer positioning plates are symmetrically arranged on two sides of the four-direction guide plate, the inner and outer limiting columns are fixed on the inner and outer positioning plates, the inner and outer limiting columns are distributed on two sides of the four-direction guide plate, the inner and outer nail tracks are distributed on the inner and outer positioning plates, and the nail tracks on the same side are arranged on different sagittal planes. The whole printing machine is in a sheet metal-like structure style, the thickness range of the plate-shaped structure of each area is 1-3mm, the size of parts is reduced to the maximum extent on the premise of ensuring functions and mechanical properties, and material loss in the printing process is reduced.
The lateral wall edge of the intercondylar medial resection guide 30 extends horizontally with a medial boss 310, and the lateral wall edge of the intercondylar lateral resection guide 40 extends horizontally with a lateral boss 410 to facilitate intraoperative clamping.
The wall heights of the intercondylar medial osteotomy guide plate 30 and the intercondylar lateral osteotomy guide plate 40 are 8-20mm respectively; the edges of the intercondylar horizontal osteotomy guide plate 10, the intercondylar anterior oblique osteotomy guide plate 20 and the intercondylar medial osteotomy guide plate 30 are respectively provided with a gap of 1-2 mm; the edges of the intercondylar horizontal osteotomy guide plate 10, the intercondylar anterior oblique osteotomy guide plate 20 and the intercondylar lateral osteotomy guide plate 40 are respectively provided with a 1-2mm gap, so that enough stroke is reserved for a cutter.
The four-direction guide plate is a rectangular frame-shaped symmetrical structure formed by an intercondylar horizontal osteotomy guide plate 10, an intercondylar anterior oblique osteotomy guide plate 20, an intercondylar medial osteotomy guide plate 30 and an intercondylar lateral osteotomy guide plate 40, can realize the osteotomy operation in four directions, the rectangular frame limits the swing range of a tool and avoids damaging redundant bone, one end of the intercondylar medial osteotomy guide plate 30 is connected with the intercondylar lateral osteotomy guide plate 40 through a rear lateral plate 220, the other end is connected with the intercondylar lateral osteotomy guide plate 40 through the horizontally arranged intercondylar horizontal osteotomy guide plate 10, the rear end of the intercondylar anterior oblique osteotomy guide plate 20 is connected with the rear lateral plate 220 through a horizontal transverse plate 210, the front end of the intercondylar anterior oblique osteotomy guide plate is arranged, the anteversion angle is determined according to a prosthesis structure or preoperative planning, and after the placement is completed in the operation, the anterior edge of the intercondylar anterior oblique resection guide plate 20 is cantilevered and remains spaced 0.5mm from the distal horizontal resection surface 100 of the femur.
The inside and outside locating plate includes inboard horizontal positioning plate 320, inboard preceding locating plate 330 that inclines, outside horizontal positioning plate 420 and outside preceding locating plate 430 that inclines, inboard horizontal positioning plate 320 and inboard preceding locating plate 330 that inclines link to each other and the two is formed with the contained angle in the department of linking to each other, simultaneously the two lower terminal surface respectively with inboard lower terminal surface parallel and level of cutting bone deflector 30 between the condyle, outside horizontal positioning plate 420 and outside preceding locating plate 430 that inclines link to each other and the two is formed with the contained angle in the department of linking to each other, simultaneously the two lower terminal surface respectively with the condyle outside cuts bone deflector 40's lower terminal surface parallel and level between the condyle. The edge contour shape of the inner and outer side positioning plates is designed individually according to the contour shape of the osteotomy face of a patient, the guide plate can be well covered after being accurately placed in an operation, the personalized design can ensure the balance of the bone pressure in the osteotomy process, the stability of the guide plate is enhanced, the personalized design refers to the design of extracting the anatomical dimension of the patient, and because the personalized design is customized for each patient, repeated design work is inevitable, so that the structure is very necessary to be simplified.
The spacing post in the inside and outside includes spacing post 321 in inboard and the spacing post 421 in the outside, spacing post 321 in inboard and the spacing post 421 in the outside are the toper column structure, simultaneously inboard spacing post 321 and the spacing post 421 in the outside insert the surface mellow and smooth transition of sclerotin part, have effectively avoided when settling the deflector also to be convenient for the deflector to take out to the damage of sclerotin.
The inner limiting pillar 321 and the outer limiting pillar 421 are respectively of thin-walled structures.
The port department of inboard spacing post 321 and the spacing post 421 in the outside is provided with groove structure respectively, is used for instructing the position of the spacing post 321 in inboard and the spacing post 421 in the outside. The existence of the inner and outer limiting columns can realize quick positioning in the operation, prevent the guide plate from deviating in the nail placing process, and has simple operation and high positioning precision
The inside and outside nail way includes that inboard horizontal plane nail way 322, outside horizontal plane nail way 422 and outside front inclined plane nail way 431, inboard horizontal plane nail way 322 sets up on the inboard horizontal positioning board 320, outside horizontal plane nail way 422 sets up on the outside horizontal positioning board 420, outside front inclined plane nail way 431 sets up on the outside front inclined positioning board 430, simultaneously outside horizontal plane nail way 422 and outside front inclined plane nail way 431's mounted position sets up on the sagittal plane of difference, avoids producing each other and interferes, inside and outside nail way is used for the bone nail direction.
The depth of the nail path of the inner and outer nail paths is 3-5mm greater than the thickness of the inner and outer positioning plates, so that the guiding precision is improved conveniently.
The invention is suitable for the intercondylar osteotomy process after the osteotomy operation of five directions of the distal end of the femur is finished in the knee joint replacement operation; the invention is only suitable for knee joint replacement surgery which has an intercondylar structure femoral prosthesis and needs to perform intercondylar osteotomy; the structure is suitable for customized operations and customized knee joint prostheses, and is suitable for metal or non-metal additive manufacturing technologies.
In the actual working process, in the knee joint replacement surgery, after the osteotomy operation in five directions of the femur is completed, the customized femoral intercondylar osteotomy device is arranged, the inner boss 310 and the outer boss 410 of the device are clamped in the arranging process, and the inner limiting column and the outer limiting column are ensured to be completely inserted into the inner limiting hole 101 and the outer limiting hole 102 of the distal horizontal osteotomy surface 100 of the femur; after the positioning is finished, the inner and outer positioning plates are tightly attached to the horizontal osteotomy surface 100 of the distal femur, and the inner front oblique positioning plate 330 and the outer front oblique positioning plate 430 are respectively tightly attached to the front oblique osteotomy surface 200 of the femur; then respectively placing bone nails along the inner horizontal nail path 322, the outer horizontal nail path 422 and the outer front inclined nail path 431 to fix the instrument; respectively attaching the osteotomy cutter to the intercondylar medial osteotomy guide plate 30 and the intercondylar lateral osteotomy guide plate 40 to perform osteotomy, wherein the cutting position starts to move from the back side of the intercondylar medial osteotomy guide plate 30 and the intercondylar lateral osteotomy guide plate 40 to the front side to complete the intercondylar medial-lateral osteotomy operation; the intercondylar anterior oblique osteotomy guide plate 20 and the intercondylar horizontal osteotomy guide plate 10 are sequentially attached to perform intercondylar anterior oblique osteotomy and intercondylar horizontal osteotomy operations, and intercondylar bone tissues are removed. After the four-direction osteotomy operation is completed, the bone nail is taken out, and the osteotomy device is taken down to complete the intercondylar osteotomy operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. A customized intercondylar osteotomy device for a femur, comprising: including four-way deflector, inside and outside locating plate, spacing post of inside and outside and inside side nail way, four-way deflector is used for realizing the operation of cutting the bone of four directions, and its inside and outside is provided with inside and outside locating plate, the spacing post of inside and outside is fixed in on the inside and outside locating plate, simultaneously the spacing post of inside and outside distributes the both sides of four-way deflector, inside and outside nail way distribute in on the inside and outside locating plate, and the homonymy nail way sets up on the sagittal plane of difference.
2. The customized femoral intercondylar osteotomy device of claim 1, wherein: the outer wall edge of the intercondylar medial osteotomy guide plate (30) extends along the horizontal direction to form a medial boss (310), and the outer wall edge of the intercondylar lateral osteotomy guide plate (40) extends along the horizontal direction to form a lateral boss (410).
3. The customized femoral intercondylar osteotomy device of claim 1, wherein: the wall surface heights of the intercondylar medial osteotomy guide plate (30) and the intercondylar lateral osteotomy guide plate (40) are 8-20mm respectively;
the edges of the intercondylar horizontal osteotomy guide plate (10), the intercondylar anterior oblique osteotomy guide plate (20) and the intercondylar medial osteotomy guide plate (30) are respectively provided with a 1-2mm gap;
the edge of the intercondylar horizontal osteotomy guide plate (10), the edge of the intercondylar anterior oblique osteotomy guide plate (20) and the edge of the intercondylar lateral osteotomy guide plate (40) are respectively provided with a gap of 1-2 mm.
4. The customized femoral intercondylar osteotomy device of claim 1, wherein: the four-direction guide plate is of a symmetrical structure in a rectangular frame shape and composed of an intercondylar horizontal osteotomy guide plate (10), an intercondylar anterior oblique osteotomy guide plate (20), an intercondylar medial osteotomy guide plate (30) and an intercondylar lateral osteotomy guide plate (40), one end of the intercondylar medial osteotomy guide plate (30) is connected with the intercondylar lateral osteotomy guide plate (40) through a rear side wall plate (220), the other end of the intercondylar medial osteotomy guide plate is connected with the intercondylar lateral osteotomy guide plate (40) through the intercondylar horizontal osteotomy guide plate (10) which is horizontally arranged, the rear end of the intercondylar anterior oblique osteotomy guide plate (20) is connected with the rear side wall plate (220) through a horizontal transverse plate (210), and the front end of the intercondylar anterior oblique osteotomy guide plate is arranged at the same time.
5. The customized femoral intercondylar osteotomy device of claim 1, wherein: the inside and outside locating plate includes that inboard horizontal location board (320), inboard preceding locating plate (330) to one side, outside horizontal location board (420) and outside preceding locating plate (430) to one side, inboard horizontal location board (320) and inboard preceding locating plate (330) to one side link to each other and the two is formed with the contained angle in the department of linking to each other, simultaneously the lower terminal surface of the two respectively with the inboard lower terminal surface parallel and level of cutting bone deflector (30) between the condyle, outside horizontal location board (420) and outside preceding locating plate (430) to one side link to each other and the two is formed with the contained angle in the department of linking to each other, simultaneously the lower terminal surface of the two respectively with the lower terminal surface parallel and level of outside cutting bone deflector (40) between the condyle.
6. The customized intercondylar osteotome of claim 1, wherein: the inner and outer side limiting columns comprise inner side limiting columns (321) and outer side limiting columns (421), the inner side limiting columns (321) and the outer side limiting columns (421) are of conical columnar structures, and meanwhile the inner side limiting columns (321) and the outer side limiting columns (421) are inserted into the outer surfaces of bone parts to be in round transition.
7. The customized femoral intercondylar osteotomy device of claim 6, wherein: the inner side limiting column (321) and the outer side limiting column (421) are respectively of thin-wall structures.
8. The customized femoral intercondylar osteotomy device of claim 6, wherein: the port department of inboard spacing post (321) and the spacing post in the outside (421) is provided with groove structure respectively, is used for instructing the position of inboard spacing post (321) and the spacing post in the outside (421).
9. The customized femoral intercondylar osteotomy device of claim 1, wherein: the inside and outside nail way includes that inboard horizontal plane nail way (322), outside horizontal plane nail way (422) and outside front inclined plane nail way (431), inboard horizontal plane nail way (322) set up on inboard horizontal location board (320), outside horizontal plane nail way (422) sets up on outside horizontal location board (420), outside front inclined plane nail way (431) sets up before the outside on inclined location board (430), simultaneously outside horizontal plane nail way (422) and outside front inclined plane nail way (431) the mounted position setting on different sagittal planes.
10. The customized femoral intercondylar osteotomy device of claim 9, wherein: the depth of the nail path of the inner and outer nail paths is 3-5mm greater than the thickness of the inner and outer positioning plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311183.0A CN114515181A (en) | 2020-11-20 | 2020-11-20 | Customized femoral intercondylar osteotomy device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311183.0A CN114515181A (en) | 2020-11-20 | 2020-11-20 | Customized femoral intercondylar osteotomy device |
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| Publication Number | Publication Date |
|---|---|
| CN114515181A true CN114515181A (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011311183.0A Pending CN114515181A (en) | 2020-11-20 | 2020-11-20 | Customized femoral intercondylar osteotomy device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115969541A (en) * | 2023-03-20 | 2023-04-18 | 北京爱康宜诚医疗器材有限公司 | Distal grinding and positioning tool for femoral condyle |
-
2020
- 2020-11-20 CN CN202011311183.0A patent/CN114515181A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115969541A (en) * | 2023-03-20 | 2023-04-18 | 北京爱康宜诚医疗器材有限公司 | Distal grinding and positioning tool for femoral condyle |
| CN115969541B (en) * | 2023-03-20 | 2023-07-07 | 北京爱康宜诚医疗器材有限公司 | Femur condyle distal end grinding positioning tool |
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