CN206151532U - A cut bone 3D printing navigation template for correcting lower limb malformation - Google Patents
A cut bone 3D printing navigation template for correcting lower limb malformation Download PDFInfo
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- CN206151532U CN206151532U CN201620370067.9U CN201620370067U CN206151532U CN 206151532 U CN206151532 U CN 206151532U CN 201620370067 U CN201620370067 U CN 201620370067U CN 206151532 U CN206151532 U CN 206151532U
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Abstract
He utility model relates to the technical field of medical devices, a cut bone 3D printing navigation template for correcting lower limb malformation especially, include the navigation template body through the preparation of 3D printer, the whole shape of navigation template body is provided with the ke shi needle guide hole of having a perfect understanding the body for C shape on the navigation template body, and the upper end border position of navigation template body is provided with three cusp hollow structure, is first tooth, second tooth and third tooth respectively, the utility model discloses can be for child patient tailored for osteotomy surgery is more accurate, does not need to adjust repeatedly, makes the operation once successful, effectively shortens operation time, and it is painful to reduce the patient.
Description
Technical field
The utility model is related to medical apparatus technical field, particularly a kind of osteotomy 3D printing for correcting lower limb malformation
Navigation template.
Background technology
In recent years, with the development of computer technology and medical 3 D visual research, can about the three-dimensional of organization of human body
The focus of international medical community research is increasingly becoming depending on changing research and computer aided orthopedics technology, is showed in the middle of clinical practice
Go out great realistic meaning.Research shows that Personalized Navigation template auxiliary bone surgery can realize the treatment of individuation
The design of scheme, can reach preferable therapeutic effect again, compare traditional technological means, show very big superiority.
The angle of lower limbs of children epiphysis shin bone has physiological change, neonatal period bone from neonate, children to teenager
Epiphysis is considered as normal with 15 ° of the angle of shin bone.Lower limb are gradually straightened within 18 months or so, thereafter because of posture and the factor of activity
Lower limb are also just from that time, slight in knee when reaching maturity under the correction of human body itself gradually in slight in knee
It is normal, FTA is typically in 4 ° -6 ° of scope.Physiological is gradually with the correcting process that pathologic fundamental difference is for the former
Enter, it is asymptomatic.Lower limbs of children deformity can cause because of factors such as wound, infection, gene, tumour, metabolism or external force.
Lower limb anatomical axis and mechanical axis there occurs change, cause each joint of lower limb to be born a heavy burden unbalance, and then cause bone joint
Scorching generation, if treating not in time, corrects the line of force, and to bone development after manservant very big impact can be caused, and even needs in the later stage
Joint prosthesis is changed, the physically and mentally healthy financial burden for damaging, increasing patient home of patient is caused.Traditional correction lower limb malformation
Bone-culting operation, roentgen radiation x repeatedly in art, operating time is long, and bleeding is more, and ray exposes many, postoperative caput femoris necrosis, hip joint
The stiff, incidence such as dislocate again is high.Great burden is brought to medical worker and patient home.Therefore, it is necessary to work out one kind
Navigation template so that the osteotomy of children's correction lower limb malformation has more preferable therapeutic effect.
The content of the invention
The purpose of this utility model is aiming at the deficiencies in the prior art, there is provided a kind of osteotomy for correcting lower limb malformation
3D printing navigation template, can make to measure for child patient so that bone-culting operation process is time saving and energy saving, and accuracy is high, reduce
The pain of child patient.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is a kind of for correcting lower limb malformation
Osteotomy 3D printing navigation template, including the navigation template body made by 3D printer, navigation template body global shape is C
Shape, is provided with the kirschner needle guide holes of insertion body on navigation template body, the upper end-face edge position of navigation template body is provided with
Three dentation hollow structures, respectively the first tooth, the second tooth and the 3rd tooth, kirschner needle guide holes be located at the first tooth and the second tooth it
Between, kirschner needle guide holes it is cylindrically shaped, kirschner needle guide holes outwards extend along navigation template outer body ledge.
In the technical program, 3D printer has been used to make navigation template body, navigation template global shape is C-shaped,
Concrete shape reversely models to be formed according to each patient CT data's mimics software, to guarantee inner surface and the patient of navigation template
Epiphysis near-end is brought into close contact, and the kirschner needle guide holes of insertion body are provided with navigation template body, for guiding Kirschner wire to carry out
Positioning, so as to fixed navigation template, the upper end-face edge position of navigation template body is provided with three dentation hollow structures, respectively
First tooth, the second tooth and the 3rd tooth, in surgical procedure, first, cut skin, manadesma, muscle, strip off periosteum, by the mould that navigates
Plate fits in cortex of bone optimum position, and along kirschner needle guide holes Kirschner wire fixation navigation template is inserted, then, along navigation template upper limb
Osteotomy surface blocks after the cortex of bone of front side and extracts Kirschner wire and remove navigation template perpendicular to coronal-plane row dentation osteotomy, continues edge
Both sides horizontal detachment rear side cortex of bone backward, is completely separated that osteotomy surface is remote, near-end, controls osteotomy near-end, separates simultaneously along coronal-plane
Lateral displacement, the first tooth is owed in the second mark of mouth groove of insertion, and then, Cross K-wire fixation osteotomy is remote, near-end, and C arm machine takes the photograph x-ray
Checking osteotomy angle and mechanical axis, complete operation.
Further improvement of the utility model, navigation template body is printed using medical PLA material.PLA（PLA）It is
A kind of new bio-based and Biodegradable material, using reproducible plant resources（Such as corn）The starch material for being proposed
Make.Starch material obtains glucose via saccharification, then makes highly purified lactic acid by glucose and certain strain fermentation, then
The PLA of certain molecular weight is synthesized by chemical synthesis process.It has good biodegradability, can be by certainly after use
So microorganism is degradable under given conditions in boundary, ultimately generates carbon dioxide and water, and free from environmental pollution, this is to environmental protection
It is highly beneficial, it is generally acknowledged environment-friendly material.
Further improvement of the utility model, the first tooth outer side edges extended line and the second tooth outer side edges extended line form angle
Equal to orthopedic correction angle, the first tooth border width is equal to mechanical axis offset distance.Orthopedic correction angle is anatomical axis and machine
Tool axle angle along the line.
The beneficial effects of the utility model：The utility model is that a kind of osteotomy 3D printing for correcting lower limb malformation is navigated
Template, can make to measure so that bone-culting operation is more accurate, it is not necessary to adjust repeatedly for child patient, make operation once into
Work(, effectively shortens operating time, reduces patient suffering.
Description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Fig. 2 is positive structure diagram of the present utility model.
Fig. 3 is backsight structural representation of the present utility model.
Fig. 4 is side structure schematic view of the present utility model.
Fig. 5 is overlooking the structure diagram of the present utility model.
Fig. 6 is the structural representation of laminating epiphysis of the present utility model.
Fig. 7 is the partial enlargement structural representation of laminating epiphysis of the present utility model
Fig. 8 is osteotomy site movement schematic diagram in the utility model.
In figure, 1- navigation template bodies, 2- kirschner needle guide holes, the teeth of 3- first, the teeth of 4- second, the teeth of 5- the 3rd.
Specific embodiment
In order to deepen, to understanding of the present utility model, the utility model to be done further below in conjunction with drawings and Examples
Describe in detail, the embodiment is only used for explaining the utility model, protection domain of the present utility model is not constituted and is limited.
Embodiment：As shown in Figures 1 to 5, a kind of osteotomy 3D printing navigation template for correcting lower limb malformation, including making
The navigation template body 1 made by 3D printer of medical PLA material, navigation template body global shape is C-shaped, and navigate mould
The kirschner needle guide holes of insertion body are provided with plate body, the upper end-face edge position of navigation template body is provided with three dentations
Hollow structure, respectively the first tooth, the second tooth and the 3rd tooth, the first tooth outer side edges extended line is formed with the second tooth outer side edges extended line
Angle is equal to orthopedic correction angle, and the first tooth border width is equal to mechanical axis offset distance（As shown in Figure 8）.
The concrete manufacturing process of the present embodiment：
（1）Raw data acquisition：Using 64 row's spiral CTs (philip, Holland) collection epiphysis near-end scanning before operation in patients
Data；The condition of scanning：The kV of voltage 120, the mA of electric current 160, the mm of thickness 1；The CT data of collection are stored in dicom format；
（2）Determine navigation template size：The epiphysis near-end CT data of storage is imported and pass through after computer Mimics 17.0
The epiphysis model of Software Create three-dimensional reconstruction, measures patient's epiphysis maleformation anatomical axis with the angle of mechanical axis so as to calculate partially
Distance is moved, navigation template size is determined.
（3）Make navigation template：The data of preservation are opened in Mimics softwares, three-dimensional structure is rotated, from all angles
Whether observation Kirschner wire position is suitable, and Kirschner wire position done and is suitably finely tuned with complete according to section and three-dimensional structure observation result
Into the design of the kirschner needle guide holes on navigation template.Extract outside greater trochanter level and distal end correspondence bone surface solution in femur epiphysis
Data are cutd open, and is done and reversely thicken after 5mm processes, the consistent substrate of form therewith is set up, while importing kirschner needle guide holes number
According to, by both combine be reconstructed into navigation template.After Boolean calculation (Boolean operation), insertion kirschner needle guide holes, and it is right
Border is repaired, and completes designing and producing for guide plate.
（4）3D printing：In Magic17.0 softwares, repair model in mistake, after the completion of reduced model data, by number
According to this STL forms import 3D printer, and using medical PLA material navigation template is printed.
Concrete application of the present embodiment in the osteotomy of correction lower limb malformation：In surgical procedure, such as Fig. 6 to Fig. 8 institutes
Show, first, cut skin, manadesma, muscle, navigation template is fitted in cortex of bone optimum position, led along Kirschner wire by strip off periosteum
Kirschner wire fixation navigation template is inserted in hole, then, along navigation template upper limb osteotomy surface perpendicular to coronal-plane row dentation osteotomy, is blocked
Kirschner wire is extracted after the cortex of bone of front side and remove navigation template, continue the cortex of bone on rear side of both sides backward horizontal detachment, thoroughly divide
Away from osteotomy surface, near-end, osteotomy near-end is controlled, separated along coronal-plane and lateral displacement, owe insertion the second mark of mouth groove in the first tooth
Interior, then, Cross K-wire fixation osteotomy is remote, near-end, and C arm machine takes the photograph x-ray checking osteotomy angle and mechanical axis, completes operation.
General principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of without departing from the utility model spirit and scope, the utility model also has various change
And improvement, these changes and improvements are both fallen within the range of claimed the utility model.The utility model claims scope
By appending claims and its equivalent thereof.
Claims (2)
1. a kind of osteotomy 3D printing navigation template for correcting lower limb malformation, it is characterised in that：Including by 3D printing mechanism
The navigation template body of work, the navigation template body global shape is C-shaped, and on the navigation template body insertion sheet is provided with
The kirschner needle guide holes of body, the upper end-face edge position of the navigation template body is provided with three dentation hollow structures, and respectively
One tooth, the second tooth and the 3rd tooth, the kirschner needle guide holes are located between first tooth and second tooth, and the Kirschner wire is led
Hole it is cylindrically shaped, the kirschner needle guide holes outwards extend along the navigation template outer body ledge.
2. the osteotomy 3D printing navigation template for correcting lower limb malformation according to claim 1, it is characterised in that：It is described
First tooth outer side edges extended line and the second tooth outer side edges extended line form angle and are equal to orthopedic correction angle, the first tooth edge
Width is equal to mechanical axis offset distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620370067.9U CN206151532U (en) | 2016-04-28 | 2016-04-28 | A cut bone 3D printing navigation template for correcting lower limb malformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620370067.9U CN206151532U (en) | 2016-04-28 | 2016-04-28 | A cut bone 3D printing navigation template for correcting lower limb malformation |
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| Publication Number | Publication Date |
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| CN206151532U true CN206151532U (en) | 2017-05-10 |
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| CN201620370067.9U Expired - Fee Related CN206151532U (en) | 2016-04-28 | 2016-04-28 | A cut bone 3D printing navigation template for correcting lower limb malformation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771031A (en) * | 2019-03-04 | 2019-05-21 | 中南大学湘雅医院 | A kind of navigation template and preparation method thereof and preparation system |
| CN111227905A (en) * | 2019-12-26 | 2020-06-05 | 齐勇 | Bone surgery guide plate |
| CN113040863A (en) * | 2021-03-09 | 2021-06-29 | 四川大学华西医院 | Navigation system for anterior cervical osteotomy combined with ultrasonic osteotome |
| US11931106B2 (en) | 2019-09-13 | 2024-03-19 | Treace Medical Concepts, Inc. | Patient-specific surgical methods and instrumentation |
| US11986251B2 (en) | 2019-09-13 | 2024-05-21 | Treace Medical Concepts, Inc. | Patient-specific osteotomy instrumentation |
-
2016
- 2016-04-28 CN CN201620370067.9U patent/CN206151532U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771031A (en) * | 2019-03-04 | 2019-05-21 | 中南大学湘雅医院 | A kind of navigation template and preparation method thereof and preparation system |
| CN109771031B (en) * | 2019-03-04 | 2022-02-11 | 中南大学湘雅医院 | Navigation template and preparation method and preparation system thereof |
| US11931106B2 (en) | 2019-09-13 | 2024-03-19 | Treace Medical Concepts, Inc. | Patient-specific surgical methods and instrumentation |
| US11986251B2 (en) | 2019-09-13 | 2024-05-21 | Treace Medical Concepts, Inc. | Patient-specific osteotomy instrumentation |
| CN111227905A (en) * | 2019-12-26 | 2020-06-05 | 齐勇 | Bone surgery guide plate |
| CN113040863A (en) * | 2021-03-09 | 2021-06-29 | 四川大学华西医院 | Navigation system for anterior cervical osteotomy combined with ultrasonic osteotome |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |