CN208426167U - 3D printing femur osteotomy device for the displacement of single condyle - Google Patents
3D printing femur osteotomy device for the displacement of single condyle Download PDFInfo
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- CN208426167U CN208426167U CN201721167603.6U CN201721167603U CN208426167U CN 208426167 U CN208426167 U CN 208426167U CN 201721167603 U CN201721167603 U CN 201721167603U CN 208426167 U CN208426167 U CN 208426167U
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- guide plate
- prosthese
- positioning
- femur
- positioning guide
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Abstract
A kind of 3D printing femur osteotomy device for the displacement of single condyle, is related to technical field of medical equipment, and the solution is to improve operation precision.The device includes positioning guide plate, and is fixed on two prosthese positioning columns protruding upward of positioning guide plate upper surface；The positioning guide plate is arc plate, is opened up on positioning guide plate there are three fixed nail hole, the axle center of each prosthese positioning column offer axially through prosthese location hole.Device provided by the utility model, the femur bone-culting operation suitable for single condyle joint replacement.
Description
Technical field
The utility model relates to medical devices technologies, more particularly to a kind of 3D printing femur osteotomy for the displacement of single condyle
The technology of device.
Background technique
There are three Minor articulus for knee joint, wherein being earliest side seam joint in knee joint with the gonitis at most occurred
It is scorching.Traditional single condyle displacement in the positioning of femur side osteotomy is completed by positioning in marrow.Drill in condyle of femur, femur drilling position
It sets in front of the femur leading edge at 1cm, and is close to locating rod in fossa intercondylaris femoris inner wall insertion marrow, place femur drilling and leads
Lead device, 7 ° of hypsokinesis, the 10 ° of im rod connectors that will turn up, which are inserted into im rod, to be positioned, and is completed condyle of femur drilling, is placed and cut
Template bone completes femoral-posterior condyles osteotomy.But everyone femur valgus angle is not fixed 7 degree, it is unified to be carried out with turning up 7 degree
Positioning, necessarily having many people to position inaccurate or even some people has more serious offset.And the position of insertion point is also
Determine by the experience of doctor, subjectivity is too strong, also results in Coronal and sagittal plain line of force deviation.Traditional femur side osteotomy
Positioning step is more, more using tool, and program is cumbersome, and time-consuming, and unified localization criteria is very accurate because of individual differences, and
Positioning also increases a possibility that fat embolism in marrow.
Utility model content
For above-mentioned defect existing in the prior art, the technical problem to be solved by the utility model is to provide a kind of energy
Operation precision is improved, and can be reduced the 3D printing femur osteotomy device for single condyle displacement of fat embolism probability.
In order to solve the above-mentioned technical problem, a kind of 3D printing femur for the displacement of single condyle provided by the utility model is cut
Bone device, it is characterised in that: including positioning guide plate, and be fixed on two prosthese positioning protruding upward of positioning guide plate upper surface
Column；
The positioning guide plate is arc plate, is opened up on positioning guide plate there are three fixed nail hole, each prosthese positioning column
Axle center all offer axially through prosthese location hole.
3D printing femur osteotomy device provided by the utility model for single condyle displacement, it is fixed using positioning guide plate and prosthese
Position column carrys out pilot bore hole, accurately can position bore position according to CT scan data, carries out without opening marrow as traditional operation
Positioning in marrow can improve operation precision, while also can be reduced the probability of fat embolism.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the 3D printing femur osteotomy device for single condyle displacement of the utility model embodiment.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with Detailed description of the invention, but the present embodiment and are not had to
In limitation the utility model, all similar structures and its similar variation using the utility model should all be included in the utility model
Protection scope, the pause mark in the utility model indicates the relationship of sum.
As shown in Figure 1, a kind of 3D printing femur osteotomy dress for the displacement of single condyle provided by the utility model embodiment
It sets, it is characterised in that: including positioning guide plate 1, and be fixed on two prosthese positioning columns protruding upward of 1 upper surface of positioning guide plate
2；
The positioning guide plate 1 is arc plate, opens up that there are three only show two in fixed nail hole 3(figure on positioning guide plate 1
Fixed nail hole), the axle center of each prosthese positioning column 2 offer axially through prosthese location hole 21.
The utility model embodiment is suitable for the femur bone-culting operation of single condyle joint replacement, and production method is as follows:
First use CT scan mode, scanning patient's femoral head centre of sphere top 5cm to knee joint central lower 5cm, scanning slice
Within thick 1mm, three-dimensionalreconstruction is then implemented to patient bone in a computer according to CT scan data, it is bright with soft tissue according to bone
Degree is different, and using Threshold segmentation function by CT sequence image binary conversion treatment, the 3D mould of patient's femur is gone out using computer reconstruction
Type；And skeleton dissection coordinate is established, late-segmental collapse is marked in patient bone threedimensional model after reconstitution and intersects stop afterwards
Line with intercondylar highest point horizontal direction central point makes the line of force of prosthese on Coronal condyle middle line in femur as mechanical axis
It is parallel to mechanical axis, and in sagittal plain, it is desirable that the prosthese column line of force is relative to 10 degree of anatomical axis hypsokinesis (this is back rake angle)；
Then simulation installation prosthese, it is spare to select suitable knee-joint prosthesis according to postartis osteotomy amount and prosthese matching degree, to complete
Preoperative planning；
Then further according to the prosthese position of the determining femur of preoperative planning, determine that conventional metals osteotomy device is determined on femur
The position in position hole and axial direction, so that it is determined that the position of the prosthese location hole on positioning guide plate and axial direction, and on this basis, it utilizes
Parametric modeling mode designs and produces out the prosthese location hole of parameterisable driving to further according to setting for condyle of femur form personalization
Count out positioning guide plate, the lower surface of positioning guide plate and the surface of patient's femur 4 be bonded, then again by prosthese location hole and
Positioning plate utilizes morphology boolean together, then produces femur osteotomy positioning device using 3D printing method；
When implementing the femur bone-culting operation of single condyle joint replacement, the lower surface of positioning guide plate is bonded with patient's femur 4,
3 pieces of steel nails are squeezed into come stationary positioned guide plate by three fixed nail hole on positioning guide plate again, are then determined again by two prostheses
Position hole accurately guides electric drill to drill on patient's femur 4, then can carry out osteotomy and place prosthese.
Claims (1)
1. a kind of 3D printing femur osteotomy device for the displacement of single condyle, it is characterised in that: including positioning guide plate, and be fixed on and determine
Two prosthese positioning columns protruding upward of position guide plate upper surface；
The positioning guide plate is arc plate, opens up that there are three fixed nail hole, the axle center of each prosthese positioning column on positioning guide plate
All offer axially through prosthese location hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167603.6U CN208426167U (en) | 2017-09-13 | 2017-09-13 | 3D printing femur osteotomy device for the displacement of single condyle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167603.6U CN208426167U (en) | 2017-09-13 | 2017-09-13 | 3D printing femur osteotomy device for the displacement of single condyle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208426167U true CN208426167U (en) | 2019-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721167603.6U Expired - Fee Related CN208426167U (en) | 2017-09-13 | 2017-09-13 | 3D printing femur osteotomy device for the displacement of single condyle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208426167U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745097A (en) * | 2019-02-14 | 2019-05-14 | 重庆高新区生物智能制造研究院 | A kind of kneecap osteotomy navigation positioning system for patella surface cartilage exchange |
| CN110464482A (en) * | 2019-08-28 | 2019-11-19 | 南京市口腔医院 | Mandible reconstruction positioning component |
| CN110960289A (en) * | 2019-12-03 | 2020-04-07 | 嘉思特华剑医疗器材(天津)有限公司 | Single-condyle bone cutting guide plate and positioning method thereof |
| CN111012470A (en) * | 2019-12-27 | 2020-04-17 | 首都医科大学宣武医院 | Movable platform single-condyle replacement medullary cavity rod insertion 3D positioning guide plate and manufacturing method thereof |
| CN113081408A (en) * | 2021-04-02 | 2021-07-09 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Single-condyle replacement femoral prosthesis implantation positioner |
-
2017
- 2017-09-13 CN CN201721167603.6U patent/CN208426167U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745097A (en) * | 2019-02-14 | 2019-05-14 | 重庆高新区生物智能制造研究院 | A kind of kneecap osteotomy navigation positioning system for patella surface cartilage exchange |
| CN110464482A (en) * | 2019-08-28 | 2019-11-19 | 南京市口腔医院 | Mandible reconstruction positioning component |
| CN110960289A (en) * | 2019-12-03 | 2020-04-07 | 嘉思特华剑医疗器材(天津)有限公司 | Single-condyle bone cutting guide plate and positioning method thereof |
| CN110960289B (en) * | 2019-12-03 | 2021-07-27 | 嘉思特华剑医疗器材(天津)有限公司 | Single-condyle bone cutting guide plate and positioning method thereof |
| CN111012470A (en) * | 2019-12-27 | 2020-04-17 | 首都医科大学宣武医院 | Movable platform single-condyle replacement medullary cavity rod insertion 3D positioning guide plate and manufacturing method thereof |
| CN111012470B (en) * | 2019-12-27 | 2024-04-30 | 首都医科大学宣武医院 | Movable platform unicondylar replacement intramedullary rod insertion 3D positioning guide plate and manufacturing method thereof |
| CN113081408A (en) * | 2021-04-02 | 2021-07-09 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Single-condyle replacement femoral prosthesis implantation positioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 Termination date: 20210913 |