CN219700032U - Auxiliary 3D prints femur distal end and cuts bone conduction board location structure - Google Patents
Auxiliary 3D prints femur distal end and cuts bone conduction board location structure Download PDFInfo
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- CN219700032U CN219700032U CN202320016881.0U CN202320016881U CN219700032U CN 219700032 U CN219700032 U CN 219700032U CN 202320016881 U CN202320016881 U CN 202320016881U CN 219700032 U CN219700032 U CN 219700032U
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- 210000000689 upper leg Anatomy 0.000 title claims abstract description 62
- 210000000988 bone and bone Anatomy 0.000 title description 16
- 238000010146 3D printing Methods 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 5
- 239000004677 Nylon Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 210000004872 soft tissue Anatomy 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000281 joint capsule Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses an auxiliary 3D printing femur distal end osteotomy guide plate positioning structure, and belongs to the technical field of medical treatment. The device comprises a femur distal end osteotomy guide plate and a guide plate positioning auxiliary structure, wherein the inner side of the femur distal end osteotomy guide plate is completely attached to the femur distal end of a patient through a 3D printing technology; square grooves are formed in two sides of the outer wall of the femur distal end osteotomy guide plate; each group of guide plate positioning auxiliary structure comprises a guide plate positioning connection structure and a positioning auxiliary plate; the guide plate positioning and connecting structure is a bending structure, one end of the guide plate positioning and connecting structure is a square block, and the other end of the guide plate positioning and connecting structure is provided with a circular straight groove; the positioning auxiliary plate mainly comprises a positioning plate and a connecting column; the connecting column is fixed on the upper surface of the positioning plate; the square block is matched with the square groove; the connecting column is matched with the circular straight groove; the open end of the circular straight groove is inclined to the distal femur side. The utility model greatly reduces the stock period, quickens the time wasted in the operation preparation stage and reduces the affliction of patients.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to an auxiliary 3D printing femur distal end osteotomy guide plate positioning structure.
Background
The existing femur far-end osteotomy guide plate on the market at present has the condition that a great amount of soft tissues of a patient need to be resected to be positioned, so that secondary injury is brought to the patient, and postoperative recovery of the patient is affected.
The existing machining bone cutting guide plate is complex in installation and complicated in use, greatly increases the time of the main doctor in the operation, and can lead the exposure time of the operation part of the patient to be too long while the operation progress is dragged, greatly increases the infection probability, and also needs to disinfect the instrument repeatedly after the operation, thereby consuming a great amount of manpower and material resources and bringing inconvenience to related staff.
The femur guide plate which is still positioned through the distal femur characteristic points is used in a large amount in the current operation, once too much soft tissue of the distal femur of a patient occurs, the positioning of the osteotomy guide plate is inaccurate, and serious conditions can cause operation failure.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model provides an auxiliary 3D printing femur distal end osteotomy guide plate positioning structure. The method greatly reduces the stock period, quickens the time wasted in the operation preparation stage and reduces the affliction of patients.
The technical scheme of the utility model is realized in such a way,
an auxiliary 3D printing femur distal end osteotomy guide plate positioning structure comprises a femur distal end osteotomy guide plate 1 and a guide plate positioning auxiliary structure 2,
the inner side of the femur distal end osteotomy guide plate is completely attached to the femur distal end of a patient through a 3D printing technology; square grooves are formed in two sides of the outer wall of the femur distal end osteotomy guide plate;
the guide plate positioning auxiliary structures 2 are provided with two groups, and each group of guide plate positioning auxiliary structures 2 comprises a guide plate positioning connection structure and a positioning auxiliary plate; the guide plate positioning and connecting structure is of a bending structure, one end of the guide plate positioning and connecting structure is a square block, and the other end of the guide plate positioning and connecting structure is provided with a circular straight groove; the positioning auxiliary plate mainly comprises a positioning plate and a connecting column; the connecting column is fixed on the upper surface of the positioning plate;
the square block is matched with the square groove; the connecting column is matched with the circular straight groove; the open end of the circular straight groove is inclined to the distal femur side.
Further, the femur distal end osteotomy guide plate mainly comprises a constraint plate and a fixing plate; the restraint plate is positioned at the top of the fixed plate, and the restraint plate and the fixed plate are of an integrated structure; and the fixed plate is provided with Kerschner pinholes penetrating through the inner side and the outer side of the fixed plate.
Further, reinforcing blocks which are uniformly distributed are arranged on the outer side of the constraint plate; the Ke shi pin hole is arranged on the reinforcing block.
Further, the square block is inserted into the square groove, and the square block and the square groove are in clearance fit.
Furthermore, the femur distal end osteotomy guide plate 1 and the guide plate positioning auxiliary structure 2 are both made of nylon materials.
Furthermore, the connecting column is inserted into the circular straight groove, and the connecting column and the circular straight groove are in clearance fit.
Further, the femur distal end osteotomy guide plate 1 is of a semi-surrounding structure.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model is obtained by 3D printing of nylon materials, and can avoid scratching soft tissues of patients and prevent secondary injury due to the self-lubricity of the nylon materials on the premise of ensuring the accuracy.
2. The utility model improves the accuracy of osteotomy and simultaneously can also change and cut the soft tissues and joint capsules of the patient by the aid of the positioning plate, so that secondary injury to the patient in the operation process is avoided, physical health of the patient is considered, and the patient can recover after the operation as soon as possible.
3. The nylon material 3D printing integrated molding technology is a customized product, and compared with a metal material customized product, the nylon material 3D printing integrated molding technology has the advantages that the cost is greatly reduced, the use effectiveness is ensured, and the burden of a patient is reduced.
4. The femur distal end osteotomy guide plate 1 of the utility model does not need to be customized in other parts, greatly reduces the stock period, accelerates the time wasted in the operation preparation stage, and reduces the affliction of patients.
5. The bone surface of the bone cutting guide plate close to the bone side is constructed by the actual condition of the bone of a patient, so that the bone cutting precision is increased.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic view of the distal femur osteotomy guide of fig. 1.
FIG. 3 is a schematic view of the guide plate positioning auxiliary structure in FIG. 1.
Fig. 4 is a schematic view illustrating a use state of an embodiment of the present utility model.
Fig. 5 is a schematic structural view of fig. 2 at another view angle.
In the figure: 1. the femur distal end cuts bone conduction board, 2, baffle location auxiliary structure, 1-1, restraint board, 1-2, fixed plate, 1-3, k's pinhole, 1-4, the boss, 1-5, square groove, 2-1, kink structure, 2-2, spliced pole, 2-3, square piece, 2-4, locating plate.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
An auxiliary 3D printing femur distal end osteotomy guide plate positioning structure comprises a femur distal end osteotomy guide plate 1 and a guide plate positioning auxiliary structure 2,
the inner side of the femur distal end osteotomy guide plate is completely attached to the femur distal end of a patient through a 3D printing technology; square grooves are formed in two sides of the outer wall of the femur distal end osteotomy guide plate;
the guide plate positioning auxiliary structures 2 are provided with two groups, and each group of guide plate positioning auxiliary structures 2 comprises a guide plate positioning connection structure and a positioning auxiliary plate; the guide plate positioning and connecting structure is of a bending structure, one end of the guide plate positioning and connecting structure is a square block, and the other end of the guide plate positioning and connecting structure is provided with a circular straight groove; the positioning auxiliary plate mainly comprises a positioning plate and a connecting column; the connecting column is fixed on the upper surface of the positioning plate;
the square block is matched with the square groove; the connecting column is matched with the circular straight groove; the open end of the circular straight groove is inclined to the distal femur side.
Further, the femur distal end osteotomy guide plate mainly comprises a constraint plate and a fixing plate; the restraint plate is positioned at the top of the fixed plate, and the restraint plate and the fixed plate are of an integrated structure; and the fixed plate is provided with Kerschner pinholes penetrating through the inner side and the outer side of the fixed plate.
Further, reinforcing blocks which are uniformly distributed are arranged on the outer side of the constraint plate; the Ke shi pin hole is arranged on the reinforcing block.
Further, the square block is inserted into the square groove, and the square block and the square groove are in clearance fit.
Furthermore, the femur distal end osteotomy guide plate 1 and the guide plate positioning auxiliary structure 2 are both made of nylon materials.
Furthermore, the connecting column is inserted into the circular straight groove, and the connecting column and the circular straight groove are in clearance fit.
Further, the femur distal end osteotomy guide plate 1 is of a semi-surrounding structure.
The following is a more specific example:
referring to fig. 1 to 5, the structural features of the present embodiment include: the femur distal end osteotomy guide plate 1 and two femur distal end osteotomy guide plate positioning connection structures 2-1;
the femur distal end osteotomy guide plate 1 and the two femur distal end osteotomy guide plate positioning connection structures 2-1 are matched with each other in a plugging manner through a square groove and a square block; the stability of connection is guaranteed to square groove and square piece clearance fit, prevents to take place to drop in the in-process of using, prevents to lead to the error of intraoperative osteotomy process because of drop. Meanwhile, the bone cutting device can be quickly taken down after the use in the operation, and is convenient to cut bone.
The connecting column and the round straight groove can provide the rotation function of the positioning auxiliary plate in the direction of the joint line of the patient, so that the main reason in operation is convenient because of too much soft tissues at the far end of the femur, and the positioning of the guide plate can be performed through the joint line of the patient under the condition that the bone cutting guide plate cannot be attached to the bone surface. The inclination of the circular straight groove can further strengthen the friction force between the circular straight groove and the connecting column, and stability is improved.
The whole set of auxiliary printing femur distal end osteotomy guide plate positioning mechanism is customized by a nylon printing technology, and the nylon material has excellent toughness, excellent wear resistance, self-lubricating property, chemical resistance, gas permeability and oil resistance and simultaneously has the characteristic of no toxicity. For customized products, most of the products are disposable products, so that the problems of low counterfeiting cost and good effect are primarily considered by patients, the nylon material is low in cost and low in shrinkage rate, the printing precision is increased, and the using effect is ensured.
The femur surface is often not good in positioning effect due to excessive soft tissues in operation, and a part of attached soft tissues of a patient are often required to be resected to achieve the expected effect, so that secondary injury is caused to the patient. However, in operation, the joint of the patient can be touched by a clinician, so that the positioning plate can assist in positioning, thereby ensuring the positioning accuracy and avoiding cutting out soft tissues of excessive patients.
The specific use process of this embodiment is as follows: in the use process of the device, soft tissue removal is firstly carried out near the position of the femur far end of a patient, after the soft tissue is removed, firstly, the inner side of the femur far end osteotomy guide plate 1 is clung to the bone after the soft tissue is stripped and is subjected to sliding positioning along the bone, after the bone cannot slide, the guide plate positioning auxiliary structure 2 is taken out, the bending structure 2-1 of the femur far end osteotomy guide plate positioning auxiliary structure is fixed through a square groove and a square block, then a connecting column positioned in a circular straight groove is rotated, after the positioning plate is further extended to the soft tissue in a joint line, the position of the femur far end osteotomy guide plate 1 is finely adjusted, the position of the femur far end osteotomy guide plate is fixed through a Kirschner needle, and the guide plate positioning auxiliary structure 2 is taken down, so that osteotomy can be started at the moment.
Claims (7)
1. The auxiliary 3D printing femur distal end osteotomy guide plate positioning structure is characterized by comprising a femur distal end osteotomy guide plate (1) and a guide plate positioning auxiliary structure (2),
the inner side of the femur distal end osteotomy guide plate is completely attached to the femur distal end of a patient through a 3D printing technology; square grooves are formed in two sides of the outer wall of the femur distal end osteotomy guide plate;
the guide plate positioning auxiliary structures (2) are provided with two groups, and each group of guide plate positioning auxiliary structures (2) comprises a guide plate positioning connection structure and a positioning auxiliary plate; the guide plate positioning and connecting structure is of a bending structure, one end of the guide plate positioning and connecting structure is a square block, and the other end of the guide plate positioning and connecting structure is provided with a circular straight groove; the positioning auxiliary plate mainly comprises a positioning plate and a connecting column; the connecting column is fixed on the upper surface of the positioning plate;
the square block is matched with the square groove; the connecting column is matched with the circular straight groove; the open end of the circular straight groove is inclined to the distal femur side.
2. The positioning structure of an auxiliary 3D printing femur distal end osteotomy guide plate of claim 1, wherein the femur distal end osteotomy guide plate consists essentially of a constraint plate and a fixation plate; the restraint plate is positioned at the top of the fixed plate, and the restraint plate and the fixed plate are of an integrated structure; and the fixed plate is provided with Kerschner pinholes penetrating through the inner side and the outer side of the fixed plate.
3. The positioning structure of the auxiliary 3D printing femur distal end osteotomy guide plate of claim 2, wherein the outer side of the constraint plate is provided with uniformly distributed reinforcing blocks; the Ke shi pin hole is arranged on the reinforcing block.
4. The positioning structure of the auxiliary 3D printing femur distal end osteotomy guide plate of claim 1, wherein the square block is inserted into the square slot and is in clearance fit with the square slot.
5. The auxiliary 3D printing femur distal end osteotomy guide plate positioning structure according to claim 1, wherein the femur distal end osteotomy guide plate (1) and the guide plate positioning auxiliary structure (2) are both made of nylon materials.
6. The positioning structure of the auxiliary 3D printing femur distal end osteotomy guide plate of claim 5, wherein the connecting post is inserted into the circular straight slot in a clearance fit.
7. The auxiliary 3D printing femur distal end osteotomy guide positioning structure as in claim 1, wherein the femur distal end osteotomy guide (1) is a semi-enclosed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320016881.0U CN219700032U (en) | 2023-01-05 | 2023-01-05 | Auxiliary 3D prints femur distal end and cuts bone conduction board location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320016881.0U CN219700032U (en) | 2023-01-05 | 2023-01-05 | Auxiliary 3D prints femur distal end and cuts bone conduction board location structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219700032U true CN219700032U (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320016881.0U Active CN219700032U (en) | 2023-01-05 | 2023-01-05 | Auxiliary 3D prints femur distal end and cuts bone conduction board location structure |
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| Country | Link |
|---|---|
| CN (1) | CN219700032U (en) |
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2023
- 2023-01-05 CN CN202320016881.0U patent/CN219700032U/en active Active
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