CN215914784U - Acetabular bone cutting guide plate based on 3D printing - Google Patents
Acetabular bone cutting guide plate based on 3D printing Download PDFInfo
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- CN215914784U CN215914784U CN202122115740.8U CN202122115740U CN215914784U CN 215914784 U CN215914784 U CN 215914784U CN 202122115740 U CN202122115740 U CN 202122115740U CN 215914784 U CN215914784 U CN 215914784U
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 31
- 238000005520 cutting process Methods 0.000 title claims abstract description 21
- 238000010146 3D printing Methods 0.000 title claims abstract description 20
- 210000000588 acetabulum Anatomy 0.000 claims abstract description 173
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 description 9
- 210000003692 ilium Anatomy 0.000 description 7
- 210000002239 ischium bone Anatomy 0.000 description 7
- 210000003689 pubic bone Anatomy 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 210000004394 hip joint Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 210000004197 pelvis Anatomy 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000469816 Varus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 210000001188 articular cartilage Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
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Abstract
The utility model discloses an acetabulum osteotomy guide plate based on 3D printing, which comprises an acetabulum fixing plate, an acetabulum navigation plate and a fixing plate mechanism; the center of the top surface of the acetabulum fixing plate is fixedly connected with a clamping component, and the acetabulum fixing plate is fixedly connected with a plurality of fixing components; the acetabulum navigation plate is provided with a plurality of first clamping grooves, the acetabulum fixing plate is fixedly connected with a plurality of first convex blocks, and the first convex blocks are detachably connected with the first clamping grooves; the fixed plate mechanism comprises a first fixed plate, a second fixed plate and a third fixed plate, the first fixed plate, the second fixed plate and the third fixed plate are detachably connected with the outer side wall of the acetabulum navigation plate through connecting rod assemblies, a plurality of fixed assemblies are fixedly connected to the first fixed plate, the second fixed plate and the third fixed plate, and a bone cutting assembly is fixed on the end face, close to the acetabulum navigation plate, of the first fixed plate, the second fixed plate and the third fixed plate. The utility model can realize the rapid and accurate adjustment of the position of the acetabulum and improve the surgical correction precision.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to an acetabulum osteotomy guide plate based on 3D printing.
Background
The pain of the hip joint is mainly caused by insufficient coverage of the acetabulum on the femoral head, imbalance in hip joint pressure and wear of articular cartilage. Periacetabular osteotomy is the surgical approach designed for this situation by the professor Ganz of the joint group of the european association of orthopedics. The osteotomy around the acetabulum is used for cutting off the pubis, the ischium and the ilium, so that the acetabulum and the pelvis are loosened, then the acetabulum is rotated outwards and forwards to loosen the acetabulum, the direction of the acetabulum is changed, the coverage condition of the acetabulum on the femoral head is improved, and the aims of reducing the abrasion of joints and relieving pain are fulfilled.
In the actual process of performing the osteotomy around the acetabulum, the position adjustment of the acetabulum after the osteotomy is loosened is difficult to accurately control, so that the correction precision of the acetabulum position in the operation process is low, the rotation of the hip joint is negatively influenced, the operation effect is influenced, and serious complications such as femoral head necrosis and the like can be caused in serious cases.
Therefore, a new bone cutting guide plate is needed to solve the above problems, so as to adjust the position of the acetabulum quickly and accurately and improve the surgical correction precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an acetabulum osteotomy guide plate based on 3D printing, which aims to solve the problems in the prior art, realize rapid and accurate adjustment of the position of an acetabulum and improve the surgical correction precision.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides an acetabulum osteotomy guide plate based on 3D printing, which comprises an acetabulum fixing plate, an acetabulum navigation plate and a fixing plate mechanism;
the bottom surface of the acetabulum fixing plate is contacted with an acetabulum, a clamping component is fixedly connected to the center of the top surface of the acetabulum fixing plate, and a plurality of fixing components are fixedly connected to the top surface of the acetabulum fixing plate;
the acetabulum navigation plate is sleeved outside the acetabulum fixing plate, a plurality of first clamping grooves are formed in the side wall, close to the acetabulum fixing plate, of the acetabulum navigation plate, a plurality of first convex blocks are fixedly connected to the side wall, close to the acetabulum navigation plate, of the acetabulum fixing plate, and the first convex blocks are detachably connected with the first clamping grooves;
the fixing plate mechanism comprises a first fixing plate, a second fixing plate and a third fixing plate, the first fixing plate, the second fixing plate and the third fixing plate are detachably connected with the outer side wall of the acetabulum navigation plate through connecting rod assemblies, a plurality of fixing assemblies are fixedly connected to the first fixing plate, the second fixing plate and the third fixing plate, and osteotomy assemblies are fixed on the end faces, close to the acetabulum navigation plate, of the first fixing plate, the second fixing plate and the third fixing plate.
Preferably, the clamping assembly comprises a clamping rod and a clamping head, the clamping head is fixed at one end of the clamping rod, the other end of the clamping rod is fixedly connected to the center of the top surface of the acetabulum fixing plate, a plurality of clamping rings which are sequentially arranged at intervals are arranged on the outer side wall of the clamping rod, and a plurality of clamping grooves are formed in the side wall of the clamping head at equal intervals in the circumferential direction.
Preferably, the fixing assembly includes a fixing column and a fixing hole, the fixing column is fixedly connected to the acetabulum fixing plate, the first fixing plate, the second fixing plate and the third fixing plate, a fixing hole is formed in the fixing column, and the fixing hole penetrates through the acetabulum fixing plate, the first fixing plate, the second fixing plate and the third fixing plate.
Preferably, the connecting rod assembly comprises two connecting rods arranged side by side, a second convex block is fixedly connected to one end of each connecting rod, the other end of each connecting rod is fixedly connected to the side wall, close to the acetabulum navigation plate, of the first fixing plate, the second fixing plate and the third fixing plate respectively, a plurality of second clamping grooves detachably connected with the second convex blocks are formed in the outer side wall of the acetabulum navigation plate, and the first fixing plate, the second fixing plate and the third fixing plate are detachably connected with the outer side wall of the acetabulum navigation plate through the two connecting rods respectively.
Preferably, the osteotomy assembly comprises a guide block and an osteotomy groove formed in the guide block, the guide block is fixedly connected to the side walls of the first fixing plate, the second fixing plate and the third fixing plate close to the acetabulum navigation plate, the osteotomy groove penetrates through the guide block, and one end of the connecting rod is fixedly connected to the side wall of the guide block.
Preferably, the acetabulum fixing plate, the acetabulum navigation plate, the first fixing plate, the second fixing plate, the third fixing plate and the connecting rod are all formed by 3D printing.
Preferably, the size of the osteotomy groove is matched with the size of an osteotome, and the shapes of end surfaces of the acetabulum fixing plate, the acetabulum navigation plate, the first fixing plate, the second fixing plate, the third fixing plate and the connecting rod, which are contacted with bones, are matched with the shapes of bones.
Preferably, the acetabulum fixing plate is circular, and the end part of the clamping rod is fixedly connected to the circle center of the circle.
The utility model discloses the following technical effects: the clamping assembly is convenient for a doctor to clamp by using a surgical instrument, so that the position of the acetabulum fixing plate is adjusted, and the position of the osteotomy acetabulum is driven to be adjusted conveniently and quickly; the osteotomy assembly can guide the osteotome to enter in a designated direction, so that the accuracy of the osteotome in osteotomy operation is improved; according to the utility model, the first fixing plate, the second fixing plate and the third fixing plate respectively correspond to the ilium, the pubis and the ischium of a patient, the acetabulum fixing plate corresponds to the acetabulum part, and the acetabulum fixing plate, the first fixing plate, the second fixing plate and the third fixing plate can be quickly and accurately fixed with corresponding bones through the fixing assembly, so that the stability of the osteotomy guide plate is improved, and preparation is made for an osteotomy operation;
the acetabulum fixing plate of the utility model is contacted with the acetabulum, the acetabulum navigation plate is sleeved outside the acetabulum fixing plate, the side wall of the acetabulum navigation plate close to the acetabulum fixing plate is provided with a plurality of first clamping grooves, the side wall of the acetabulum fixing plate close to the acetabulum navigation plate is fixedly connected with a plurality of first lugs, the first lugs are detachably connected with the first clamping grooves, when an osteotomy operation is carried out, the position of the acetabulum is adjusted by adjusting the position of the acetabulum fixing plate fixed on the acetabulum after the acetabulum part is cut off by an osteotome assembly, the acetabulum position after cutting is adjusted, when the first lugs are clamped with the first clamping grooves, the acetabulum fixing plate is connected with the acetabulum navigation plate, the acetabulum after cutting is adjusted to the optimal correction position, then the acetabulum position is fixed, the operation can be completed, the first lugs are detachably connected with the first clamping grooves to temporarily fix the adjusted acetabulum part, avoid the dislocation of acetabulum, improve the correction precision of operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an acetabular bone cutting guide plate based on 3D printing according to the utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of the acetabular fixation plate of the utility model;
FIG. 4 is a cross-sectional view of a first retaining plate according to the present invention;
FIG. 5 is a schematic view of the present invention in use;
wherein, 1, an acetabulum fixing plate; 2. an acetabular navigation plate; 3. a first clamping groove; 4. a first bump; 5. a first fixing plate; 6. a second fixing plate; 7. a third fixing plate; 8. a clamping rod; 9. a clamping head; 10. a clamp ring; 11. a clamping groove; 12. fixing a column; 13. a fixing hole; 14. a connecting rod; 15. a second bump; 16. a second clamping groove; 17. a guide block; 18. a osteotomy groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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.
Referring to fig. 1-5, the utility model provides an acetabulum osteotomy guide plate based on 3D printing, which comprises an acetabulum fixing plate 1, an acetabulum navigation plate 2 and a fixing plate mechanism;
the bottom surface of the acetabulum fixing plate 1 is contacted with the acetabulum, a clamping component is fixedly connected at the center of the top surface of the acetabulum fixing plate 1, and a plurality of fixing components are fixedly connected on the top surface of the acetabulum fixing plate 1; due to the arrangement, a doctor can conveniently clamp the acetabulum fixing plate by using a surgical instrument through the clamping assembly, so that the position of the acetabulum fixing plate 1 is adjusted, the position of the osteotomized acetabulum is driven to be adjusted, and the acetabulum is convenient and quick;
the acetabulum navigation plate 2 is sleeved outside the acetabulum fixing plate 1, a plurality of first clamping grooves 3 are formed in the side wall, close to the acetabulum fixing plate 1, of the acetabulum navigation plate 2, a plurality of first convex blocks 4 are fixedly connected to the side wall, close to the acetabulum navigation plate 2, of the acetabulum fixing plate 1, and the first convex blocks 4 are detachably connected with the first clamping grooves 3; according to the arrangement, when an osteotomy is performed, after the acetabulum part is cut off through the osteotomy component in the osteotome, the position of the acetabulum fixed plate 1 fixed on the acetabulum is adjusted through adjusting, after the first convex block 4 is clamped with the first clamping groove 3, the acetabulum fixed plate 1 is connected with the acetabulum navigation plate 2, the cut acetabulum is adjusted to the optimal correction position at the moment, and then the acetabulum position is fixed, so that the operation can be completed, the adjusted acetabulum part can be temporarily fixed by detachably connecting the first convex block 4 with the first clamping groove 3, the acetabulum dislocation is avoided, and the correction precision of the operation is improved;
the fixing plate mechanism comprises a first fixing plate 5, a second fixing plate 6 and a third fixing plate 7, the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7 are detachably connected with the outer side wall of the acetabulum navigation plate 2 through connecting rod assemblies, a plurality of fixing assemblies are fixedly connected on the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7, and osteotomy assemblies are fixed on the end faces, close to the acetabulum navigation plate 2, of the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7; by the arrangement, the osteotomy component can guide the osteotomy in the appointed direction, so that the accuracy of the osteotomy operation of the osteotomy is improved; first fixed plate 5, second fixed plate 6, third fixed plate 7 correspond with patient's ilium, pubis, ischium respectively, and acetabular bone fixed plate 1 corresponds with the acetabular bone part, can be fast accurate fix acetabular bone fixed plate 1, first fixed plate 5, second fixed plate 6, third fixed plate 7 and corresponding skeleton through fixed subassembly, improve the stability of cutting the bone baffle, prepare for the osteotomy operation.
According to a further optimized scheme, the clamping assembly comprises a clamping rod 8 and a clamping head 9, the clamping head 9 is fixed at one end of the clamping rod 8, the other end of the clamping rod 8 is fixedly connected to the center of the top surface of the acetabulum fixing plate 1, a plurality of clamping rings 10 which are sequentially arranged at intervals are arranged on the outer side wall of the clamping rod 8, and a plurality of clamping grooves 11 are circumferentially arranged on the side wall of the clamping head 9 at equal intervals; the shape of the acetabulum fixing plate 1 can be set according to a specific use environment, in the embodiment, the acetabulum fixing plate 1 is circular, and the end part of the clamping rod 8 is fixedly connected to the circle center of the circle; due to the arrangement, the clamping rod 8 can be conveniently clamped by an instrument and can drive the acetabulum fixing plate 1 to rotate, so that the position adjustment of the acetabulum can be realized; the clamping ring 10 and the clamping groove 11 are convenient for a doctor to use surgical tools such as acetabulum reduction forceps and the like to clamp in the operation process, the friction between an instrument and the clamping rod 8 and the clamping head 9 is increased, so that the acetabulum fixing plate 1 of the doctor and the acetabulum part cut off are clamped, the acetabulum is convenient to rotate, the acetabulum is quickly adjusted to the best correction position, and the operability of the operation is improved.
According to a further optimized scheme, the fixing assembly comprises a fixing column 12 and a fixing hole 13, the fixing column 12 is fixedly connected to the acetabulum fixing plate 1, the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7, and the fixing column 12 is fixedly connected to the end faces, far away from the skeleton, of the acetabulum fixing plate 1, the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7; fixing holes 13 are formed in the fixing columns 12, and the fixing holes 13 penetrate through the acetabulum fixing plate 1, the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7. The shape and direction of the fixing hole 13 are set according to the actual use environment, the shape of the fixing hole 13 in this embodiment is preferably adapted to the size of the kirschner wire for temporary fixation used in the operation, the direction of the fixing hole 13 is specifically set according to the operation scheme established before the operation, the fixing column 12 is provided with scales (not shown in the figure), so as to set, when the osteotomy is performed, a doctor uses the kirschner wire to extend into the fixing hole 13 for fixing, so that the acetabulum fixing plate 1, the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7 are respectively fixed with the corresponding positions of the acetabulum, the ilium, the pubis and the ischium of a patient, and the fixing device is prepared for subsequent operation, the scales on the fixing column 12 can enable a doctor to accurately know the fixing depth, so that the doctor can quickly know the specific conditions in the operation process, and the convenience of the operation is improved.
According to a further optimization scheme, a plurality of groups of connecting rod assemblies are arranged, a group of connecting rod assemblies are respectively arranged between the first fixing plate 5 and the acetabulum navigation plate 2, between the second fixing plate 6 and the acetabulum navigation plate 2 and between the third fixing plate 7 and the acetabulum navigation plate 2, each connecting rod assembly comprises two connecting rods 14 arranged side by side, one end of each connecting rod 14 is fixedly connected with a second convex block 15, the other end of each connecting rod 14 is fixedly connected to the side wall, close to the acetabulum navigation plate 2, of the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7 respectively, a plurality of second clamping grooves 16 detachably connected with the second convex blocks 15 are formed in the outer side wall of the acetabulum navigation plate 2, and the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7 are detachably connected with the outer side wall of the acetabulum navigation plate 2 through the two connecting rods 14 respectively; one end of the connecting rod 14 of each group of connecting components is fixedly connected with the corresponding fixing plate; so set up, first fixed plate 5, second fixed plate 6, third fixed plate 7 all can be dismantled with acetabular bone navigation board 2 through connecting rod 14 and be connected, make the position of acetabular bone navigation board 2 not change at the operation in-process, make acetabular bone navigation board 2 as best correction position, provide direction guide for acetabular bone fixed plate 1, improve and correct the precision, through set up second joint groove 16 on the lateral wall at acetabular bone navigation board 2, make acetabular bone navigation board 2 and connecting rod 14 can dismantle and assemble at the operation in-process, the position of acetabular bone navigation board 2 does not shift with the position of setting up before the art after the equipment, so, make acetabular bone navigation board 2 form in the position correction in-process and other operation steps of acetabular bone fixed plate 1 and interfere, and then improve the convenience of operation.
In a further optimized scheme, the osteotomy assembly comprises a guide block 17 and an osteotomy groove 18 formed in the guide block 17, the guide block 17 is fixedly connected to the side walls of the first fixing plate 5, the second fixing plate 6 and the third fixing plate 7 close to the acetabulum navigation plate 2, the osteotomy groove 18 penetrates through the guide block 17, one end of the connecting rod 14 is fixedly connected to the side wall of the guide block 17, the shape and the direction of the osteotomy groove 18 are set according to the actual use environment, in the embodiment, the shape of the osteotomy groove 18 is preferably matched with the size of an osteotome in an operation, the direction of the osteotomy groove 18 is specifically set according to an operation scheme formulated before the operation, scales (not shown in the figure) are arranged on the guide block 17, so that when the osteotomy operation is performed, a doctor extends into the osteotomy groove 18 by using the osteotome, the osteotomy groove 18 guides the cutting direction of the osteotome, so that the precision of the osteotome is greatly improved, through the scale on the guide block 17, the doctor can accurately know the depth of the scalpel, the doctor can conveniently and quickly know the specific situation in the operation process, and the convenience of the operation is improved.
According to the further optimization scheme, the acetabulum fixing plate 1, the acetabulum navigation plate 2, the first fixing plate 5, the second fixing plate 6, the third fixing plate 7 and the connecting rod 14 are all formed by 3D printing; the size of the osteotomy groove 18 is matched with the size of the osteotome, the shapes of end surfaces of the acetabulum fixing plate 1, the acetabulum navigation plate 2, the first fixing plate 5, the second fixing plate 6, the third fixing plate 7 and the connecting rod 14, which are contacted with bones, are matched with the shapes of the bones, so that the three-dimensional model reconstructed according to the biomedical image data of individual bones of a patient is independently manufactured into an irregular shape which is more suitable for the bones of the patient through a 3D printing technology, the internal varus angle, the rotation removing angle and the shortening length which need to be corrected are calculated by measuring the cervical shaft angle, the anteversion angle and the length which needs to be shortened of thighbones in the three-dimensional model, and finally the specific position after correction and the specific position of the acetabulum navigation plate 2 are calculated, so that the position of the acetabulum navigation plate 2 is the optimal correction position, and the acetabulum fixing plate 1 and the acetabulum navigation plate 2 are suitable for the acetabulum of the patient, First fixed plate 5, second fixed plate 6, third fixed plate 7 correspond the department laminating with patient's ilium, pubis, ischium respectively, and then make cut the baffle and fix with patient's skeleton and laminate more firmly, reduce the friction of cutting bone baffle and skeleton, improve the accuracy of cutting the bone.
The operation process comprises the following steps:
when the acetabulum osteotomy guide plate based on 3D printing is used, firstly, an acetabulum fixing plate 1, a first fixing plate 5, a second fixing plate 6 and a third fixing plate 7 are respectively fixed at the corresponding positions of acetabulum, ilium, pubis and ischium of a patient through fixing needles, and then an osteotome is used for cutting off the pubis, the ischium and the ilium of the patient along each osteotomy groove 18, so that the acetabulum and pelvis are loosened; and then, surgical instruments such as reduction forceps are used for clamping the clamping rod 8 or the clamping head 9, so that the position of the acetabulum is adjusted, after the first convex block 4 is clamped with the first clamping groove 3, the acetabulum fixing plate 1 is connected with the acetabulum navigation plate 2, the cut acetabulum is adjusted to the optimal correction position, the adjusted acetabulum part can be temporarily fixed after the first convex block 4 is assembled with the first clamping groove 3, the acetabulum dislocation is avoided, the acetabulum position is fixed again, and the operation can be completed.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, 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.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The utility model provides an acetabulum cuts bone conduction board based on 3D prints, includes:
the acetabulum fixing plate comprises an acetabulum fixing plate (1), wherein the bottom surface of the acetabulum fixing plate (1) is contacted with an acetabulum, a clamping component is fixedly connected at the center of the top surface of the acetabulum fixing plate (1), and a plurality of fixing components are fixedly connected on the top surface of the acetabulum fixing plate (1);
the acetabulum navigation plate (2) is sleeved outside the acetabulum fixing plate (1), a plurality of first clamping grooves (3) are formed in the side wall, close to the acetabulum fixing plate (1), of the acetabulum navigation plate (2), a plurality of first convex blocks (4) are fixedly connected to the side wall, close to the acetabulum navigation plate (2), of the acetabulum fixing plate (1), and the first convex blocks (4) are detachably connected with the first clamping grooves (3);
the fixed plate mechanism comprises a first fixed plate (5), a second fixed plate (6) and a third fixed plate (7), wherein the first fixed plate (5), the second fixed plate (6) and the third fixed plate (7) are detachably connected with the outer side wall of the acetabulum navigation plate (2) through connecting rod assemblies, a plurality of fixed assemblies are fixedly connected to the first fixed plate (5), the second fixed plate (6) and the third fixed plate (7), and a bone cutting assembly is fixed to the end face, close to the acetabulum navigation plate (2), of the first fixed plate (5), the second fixed plate (6) and the third fixed plate (7).
2. The 3D printing-based acetabular bone-cutting guide of claim 1, wherein: the clamping assembly comprises a clamping rod (8) and a clamping head (9), the clamping head (9) is fixed at one end of the clamping rod (8), the other end of the clamping rod (8) is fixedly connected to the center of the top surface of the acetabulum fixing plate (1), a plurality of clamping rings (10) which are sequentially arranged at intervals are arranged on the outer side wall of the clamping rod (8), and a plurality of clamping grooves (11) are arranged on the side wall of the clamping head (9) at equal intervals in the circumferential direction.
3. The 3D printing-based acetabular bone-cutting guide of claim 1, wherein: the fixing assembly comprises a fixing column (12) and a fixing hole (13), the fixing column (12) is fixedly connected to the acetabulum fixing plate (1), the first fixing plate (5), the second fixing plate (6) and the third fixing plate (7), the fixing hole (13) is formed in the fixing column (12), and the fixing hole (13) penetrates through the acetabulum fixing plate (1), the first fixing plate (5), the second fixing plate (6) and the third fixing plate (7).
4. The 3D printing-based acetabular bone-cutting guide of claim 1, wherein: the connecting rod assembly comprises two connecting rods (14) arranged side by side, a second convex block (15) is fixedly connected to one end of each connecting rod (14), the other end of each connecting rod (14) is fixedly connected to the first fixing plate (5), the second fixing plate (6) and the third fixing plate (7) close to the side wall of the acetabulum navigation plate (2), a plurality of second clamping grooves (16) detachably connected with the second convex blocks (15) are formed in the outer side wall of the acetabulum navigation plate (2), and the first fixing plate (5), the second fixing plate (6) and the third fixing plate (7) are detachably connected with the outer side wall of the acetabulum navigation plate (2) through the two connecting rods (14) respectively.
5. The 3D printing-based acetabular bone-cutting guide of claim 4, wherein: the osteotomy component comprises a guide block (17) and an osteotomy groove (18) formed in the guide block (17), the guide block (17) is fixedly connected to the side wall of the acetabulum navigation plate (2) close to the first fixing plate (5), the second fixing plate (6) and the third fixing plate (7), the osteotomy groove (18) penetrates through the guide block (17), and one end of the connecting rod (14) is fixedly connected to the side wall of the guide block (17).
6. The 3D printing-based acetabular bone-cutting guide of claim 4, wherein: the acetabulum fixing plate (1), the acetabulum navigation plate (2), the first fixing plate (5), the second fixing plate (6), the third fixing plate (7) and the connecting rod (14) are all formed by 3D printing.
7. The 3D printing-based acetabular bone-cutting guide of claim 5, wherein: the size of the osteotomy groove (18) is matched with that of an osteotome, and the shapes of end surfaces of the acetabulum fixing plate (1), the acetabulum navigation plate (2), the first fixing plate (5), the second fixing plate (6), the third fixing plate (7) and the connecting rod (14) which are contacted with bones are matched with the shapes of bones.
8. The 3D printing-based acetabular bone-cutting guide of claim 2, wherein: the acetabulum fixing plate (1) is circular, and the end part of the clamping rod (8) is fixedly connected to the circle center of the circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122115740.8U CN215914784U (en) | 2021-09-03 | 2021-09-03 | Acetabular bone cutting guide plate based on 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122115740.8U CN215914784U (en) | 2021-09-03 | 2021-09-03 | Acetabular bone cutting guide plate based on 3D printing |
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| CN215914784U true CN215914784U (en) | 2022-03-01 |
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| CN202122115740.8U Expired - Fee Related CN215914784U (en) | 2021-09-03 | 2021-09-03 | Acetabular bone cutting guide plate based on 3D printing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115089262A (en) * | 2022-07-27 | 2022-09-23 | 安徽医科大学第二附属医院 | Hip joint cuts bone navigation based on 3D prints |
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2021
- 2021-09-03 CN CN202122115740.8U patent/CN215914784U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115089262A (en) * | 2022-07-27 | 2022-09-23 | 安徽医科大学第二附属医院 | Hip joint cuts bone navigation based on 3D prints |
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