CN110755180A - Shoulder joint filling device, manufacturing method, device model construction method, computer-readable storage medium and equipment - Google Patents
Shoulder joint filling device, manufacturing method, device model construction method, computer-readable storage medium and equipment Download PDFInfo
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- CN110755180A CN110755180A CN201911106767.1A CN201911106767A CN110755180A CN 110755180 A CN110755180 A CN 110755180A CN 201911106767 A CN201911106767 A CN 201911106767A CN 110755180 A CN110755180 A CN 110755180A
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- 210000000323 shoulder joint Anatomy 0.000 title claims abstract description 85
- 238000003860 storage Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000010276 construction Methods 0.000 title abstract description 11
- 210000001991 scapula Anatomy 0.000 claims abstract description 224
- 230000004927 fusion Effects 0.000 claims abstract description 128
- 239000002344 surface layer Substances 0.000 claims abstract description 125
- 238000002271 resection Methods 0.000 claims abstract description 28
- 238000010146 3D printing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 25
- 239000010410 layer Substances 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 11
- 230000003416 augmentation Effects 0.000 claims description 5
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- 230000007547 defect Effects 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 abstract description 24
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- 210000000142 acromioclavicular joint Anatomy 0.000 description 2
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- 238000002513 implantation Methods 0.000 description 2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/40—Joints for shoulders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
- A61F2002/30948—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques using computerized tomography, i.e. CT scans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
- A61F2002/30998—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for acromio-clavicular joints
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Transplantation (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Prostheses (AREA)
Abstract
The invention provides a shoulder joint filling device, a preparation method, a device model construction method, a computer readable storage medium and equipment, wherein the model construction method comprises the following steps: 1) constructing a three-dimensional scapula model; 2) determining a resection range, simulating resection, and taking the resection part as an initial scapula filling part model; 3) constructing a plurality of scapula filling part fixing nail holes; 4) and (3) inwards stretching the contact surface of the model obtained in the step 3) and the cut scapula three-dimensional model, constructing a plurality of scapula filling part fusion surface layer units in a layering manner, constructing a plurality of through holes to obtain a scapula filling part fusion surface layer model, and taking the residual part of the model obtained in the step 3) after the scapula filling part fusion surface layer model is removed as a scapula filling part main body model. The shoulder joint filling device is prepared by a 3D printing technology, completely matches the shape and the size of defective bone of a patient, allows a shoulder glenoid to be reserved during an operation, and reserves the function of a shoulder joint to the maximum extent.
Description
Technical Field
The invention belongs to the technical field of orthopedic implants, and particularly relates to a shoulder joint filling device, a preparation method, a device model construction method, a computer-readable storage medium and computer-readable equipment.
Background
Periglenoid bone tumors are one of the good sites for shoulder tumor development and usually require surgical treatment. The traditional operation method is upper 1/4 amputation, but the upper limb prosthesis can not replace the important function of the hand, so the limb protection operation is particularly important in saving the upper limb function. The current method for limb protection operation of shoulder joint tumor comprises the following steps: artificial prosthesis replacement, autologous ilium scapula reconstruction, bone or bone joint transplantation of allogeneic bone, joint fusion, boneless reconstruction and the like.
However, all of these methods currently do not have a way to perfectly reconstruct the function of the shoulder joint. Because the socket joint formed by the humerus and the glenoid has the characteristic of being very flexible and has the function of moving in various directions. The reconstruction methods used clinically at present are mostly resection joint and post reconstruction. In other words, the patient's own shoulder joint is replaced with an artificial shoulder joint. The artificial shoulder joint can not meet the requirement of the functional recovery of the shoulder joint of a patient at all.
Meanwhile, the conventional acromioclavicular joint prosthesis adopts a conventional material reduction manufacturing mode, and the conventional acromioclavicular joint prosthesis does not have a micro-pore structure and is not beneficial to the growth of peripheral new bone tissues into the prosthesis, so that the early stability of the prosthesis is obtained. Early stabilization is very important for the patient. Because the postoperative patient of orthopedics can cause serious complications such as dropsy pneumonia, bedsore, deep vein thrombosis and the like due to long-term bed rest. It is therefore important that the prosthesis achieves early stabilization, thereby facilitating early performance of functional exercises by the patient. In addition, if the bone forms a very stable integration with the prosthesis, it is advantageous to extend the service life of the prosthesis and reduce the possibility of loosening.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a shoulder joint filling device, a manufacturing method thereof, a device model construction method, a computer-readable storage medium, and an apparatus, the model construction method including the steps of: 1) constructing a three-dimensional scapula model; 2) determining a resection range, simulating resection on the scapula three-dimensional model to obtain a scapula three-dimensional model after resection, and taking a resection part as an initial scapula filling part model; 3) constructing a plurality of scapula filling part fixing nail holes on the initial scapula filling part model; 4) stretching the contact surface of the model obtained in the step 3) and the cut scapula three-dimensional model inwards and constructing a plurality of scapula filling part fusion surface layer units in a layering mode, constructing a plurality of through holes on each scapula filling part fusion surface layer unit to obtain a scapula filling part fusion surface layer model, taking the rest part of the model obtained in the step 3) after the scapula filling part fusion surface layer model is removed as a scapula filling part main body model, and enabling the scapula filling part fusion surface layer model and the scapula filling part main body model to form the scapula filling part model. The shoulder joint filling device is prepared by a 3D printing technology, completely matches the shape and the size of defective bone of a patient, allows a shoulder glenoid to be reserved during an operation, and reserves the function of a shoulder joint to the maximum extent.
In order to achieve the above objects and other related objects, the present invention adopts the following technical solutions:
the invention provides a method for constructing a shoulder joint filling device model, which comprises the following steps:
1) constructing a three-dimensional scapula model;
2) determining a resection range, simulating resection on the scapula three-dimensional model to obtain a scapula three-dimensional model after resection, and taking a resection part as an initial scapula filling part model;
3) constructing a plurality of scapula filling part fixing nail holes on the initial scapula filling part model;
4) stretching the contact surface of the model obtained in the step 3) and the cut scapula three-dimensional model inwards and constructing a plurality of scapula filling part fusion surface layer units in a layering mode, constructing a plurality of through holes on each scapula filling part fusion surface layer unit to obtain a scapula filling part fusion surface layer model, taking the rest part of the model obtained in the step 3) after the scapula filling part fusion surface layer model is removed as a scapula filling part main body model, and enabling the scapula filling part fusion surface layer model and the scapula filling part main body model to form the scapula filling part model.
In some embodiments of the present invention, the method further comprises the steps of:
5) taking part of the outer surface of the cut scapula three-dimensional model as a fixing piece contact surface, connecting at least part of side edges of the fixing piece contact surface with the shoulder joint filling part model, stretching the fixing piece contact surface outwards and constructing a plurality of fixing piece fusion surface layer units in layers, constructing a plurality of through holes on each fixing piece fusion surface layer unit to obtain a fixing piece fusion surface layer model, further stretching outwards from the surface of the outermost fixing piece fusion surface layer unit to construct a fixing piece main body model, forming an initial fixing piece model by the fixing piece fusion surface layer model and the fixing piece main body model, and enabling the joint of the initial fixing piece model and the scapula filling part model to be in smooth transition;
6) and constructing a plurality of fixing piece fixing nail holes on the initial fixing piece model to obtain a fixing piece model.
In some embodiments of the invention, at least one of the following technical features is also included:
1) in the step 1), the scapula three-dimensional model is constructed by CT data and/or MRI data;
2) in the step 3), the scapula filling part fixing nail hole is matched with a scapula filling part fixing nail for fixing the scapula filling part;
3) in the step 4), the through holes on the fusion surface layer units of the scapula filling parts are communicated with each other;
4) in the step 4), the porosity of the scapula filling part fusion surface layer model is 70-80%;
5) in the step 4), the thickness of the fusion surface layer model of the scapula filling part is 1.5-2 mm;
6) in the step 4), the aperture of the through hole of the scapula filling part fusion surface layer model is 500-700 μm.
In some embodiments of the invention, at least one of the following technical features is also included:
1) in the step 5), the initial fixing piece model is Y-shaped;
2) in the step 5), through holes on the fusion surface layer units of the fixing pieces are communicated with each other;
3) in the step 5), the porosity of the fixed part fusion surface layer model is 70-80%;
4) in the step 5), the thickness of the fixed part fusion surface layer model is 1.5 mm-2 mm;
5) in the step 5), the aperture of the through hole of the fixing piece fusion surface layer model is 500-700 mu m
6) And 6), matching the fixing piece fixing nail holes with fixing piece fixing nails for fixing the fixing pieces.
In a second aspect, the present invention provides a method of manufacturing a shoulder joint filling device, the method comprising: the shoulder joint filling device model is constructed and obtained by the construction method of the shoulder joint filling device model, and the shoulder joint filling device is prepared according to the shoulder joint filling device model.
In some embodiments of the invention, the shoulder joint filling device is prepared by 3D printing.
In a third aspect, the invention provides a shoulder joint filling device prepared by the above method.
The invention provides a shoulder joint filling device, which comprises a scapula filling part, wherein the scapula filling part is in a shape of scapula defect, the scapula filling part sequentially comprises a scapula filling part fusion surface layer and a scapula filling part main body from scapula which are cut off nearly to scapula which are cut off far, the scapula filling part fusion surface layer is arranged on the contact surface of the scapula filling part and the scapula which are cut off, the scapula filling part fusion surface layer is in a porous structure, and a plurality of scapula filling part fixing nail holes which penetrate through the scapula filling part fusion surface layer and the scapula filling part main body are arranged on the scapula filling part.
In some embodiments of the invention, at least one of the following technical features is also included:
1) the fixing nail for the scapula filling part is matched with the fixing nail hole for the scapula filling part;
2) still include the mounting, the mounting includes mounting fusion surface course and mounting main part in proper order by the scapula after nearly excision to the scapula after far-away excision, the mounting is equipped with the contact surface of the scapula after the excision the mounting fusion surface course, the mounting fuses the surface course and is porous structure, set up a plurality of lining up on the mounting fusion surface course with the mounting staple hole of mounting main part, scapula filling portion with mounting rounding off transition connects.
In some embodiments of the invention, at least one of the following technical features is also included:
1) the porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated;
2) the porosity of the fusion surface layer of the scapula filling part is 70-80%; the porosity is the percentage of the pore volume in the fused surface layer to the total volume of the fused surface layer in a natural state;
3) the thickness of the fusion surface layer of the scapula filling part is 1.5 mm-2 mm;
4) the aperture of the through hole of the fusion surface layer of the scapula filling part is 500-700 μm.
In some embodiments of the invention, the feature 2) further comprises at least one of the following technical features:
1) the fixing piece is Y-shaped;
2) the fixing piece fixing nail is matched with the fixing piece fixing nail hole;
3) the porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated;
4) the porosity of the fusing surface layer of the fixing piece is 70-80%; the porosity is the percentage of the pore volume in the fused surface layer to the total volume of the fused surface layer in a natural state;
5) the thickness of the fusion surface layer of the fixing piece is 1.5 mm-2 mm;
6) the aperture of the through hole of the fusing surface layer of the fixing piece is 500-700 mu m;
7) the fixing piece fusion surface layer is attached to the contact surface of the scapula after being cut.
A fifth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the method of constructing a model of a shoulder joint filling apparatus as set forth above.
A sixth aspect of the present invention provides an apparatus comprising: a processor and a memory, the memory for storing a computer program, the processor for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a model of a shoulder joint filling device as described above.
As described above, the present invention has at least one of the following advantageous effects:
1) the shoulder joint filling device is prepared by a 3D printing technology, completely matches the shape and size of the defective bone of a patient, carries out accurate reconstruction on the defective bone tissue after tumor resection, completely replaces the outer side edge of a scapula, allows a shoulder glenoid to be reserved during an operation, and reserves the function of the shoulder joint to the maximum extent.
2) The scapula filling part in the shoulder joint filling device is provided with a plurality of scapula filling part fixing nail holes which penetrate through the fusion surface layer of the scapula filling part and the scapula filling part main body, and the shoulder joint filling device can also comprise a plurality of scapula filling part fixing nails which are matched with the scapula filling part fixing nail holes, so that the shoulder joint filling device is favorably and tightly combined with the scapula, and can be used for carrying out initial fixation through the scapula filling part fixing nails during initial implantation, thereby preventing the displacement of the prosthesis, providing the early stability of the device and being favorable for the early movement of a patient.
3) The fixing piece in the shoulder joint filling device is provided with a plurality of fixing piece fixing nail holes penetrating through the fixing piece fusion surface layer and the fixing piece main body, and can also comprise a plurality of fixing piece fixing nails which are matched with the fixing piece fixing nail holes, so that the device can be favorably and tightly combined with the scapula.
4) The shoulder joint filling device is provided with the scapula filling part fusion surface layer, the scapula filling part fusion surface layer is tightly attached to human bone, and the scapula filling part fusion surface layer is provided with a micro-pore structure, so that new bone tissues can grow into the device, long-term stability is achieved, and the service life of the device is greatly prolonged.
5) The shoulder joint filling device is provided with the fixing part fusion surface layer, the fixing part fusion surface layer is tightly attached to human bone, and the fixing part fusion surface layer is provided with a micro-pore structure, so that new bone tissues can grow into the device, long-term stability is further achieved, and the service life of the device is greatly prolonged.
Drawings
Figure 1 is a CT image of a patient (tumor at the intersection of two lines).
Fig. 2 is a scapula reconstruction image of the patient, in which the green part is the tumor resection range.
Fig. 3 is a first structural schematic diagram of the shoulder joint filling device.
Fig. 4 is a structural schematic diagram of the shoulder joint filling device II.
Fig. 5 is a first installation schematic diagram of the shoulder joint filling device.
Fig. 6 is a first installation schematic diagram of the shoulder joint filling device.
Reference numerals:
1-a scapula filling part; 11-the scapula filling part fuses the surface layer; 12-scapula filling part main body; 13-fixing nail holes of the scapula filling part;
2-fixing nails for the scapula filling parts;
3-a fixing piece; 31-a fastener fusion facing; 32-a fixture body; 33-fixing member fixing nail holes;
4-fixing the nail by the fixing piece.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
A method for constructing a shoulder joint filling device model comprises the following steps:
1) constructing a three-dimensional scapula model;
the three-dimensional scapula model generally includes a model of each tissue, for example, the model may include a model of a tissue such as skin, bone, blood vessels, nerves, and a lesion (e.g., tumor), the model may reflect a shape and a position of a skin surface of an individual (e.g., a patient), a shape and a position of a bone of an individual, a shape and a position of a tissue such as blood vessels, nerves, etc., a shape and a position of a tumor of an individual, and specific parameters of a tumor thereof, etc. (e.g., volume, etc.). The scapula three-dimensional model can be generally constructed according to CT data and/or MRI data, and the data can be imported into software such as three-dimensional reconstruction design software such as E3D and the like in the construction process, and registration and fusion are carried out, so that the scapula three-dimensional model is constructed; as shown in fig. 1, a CT image of the patient (tumor at the intersection of two lines);
2) determining a resection range, simulating resection on the scapula three-dimensional model to obtain a scapula three-dimensional model after resection, and taking a resection part as an initial scapula filling part model;
when determining the extent of resection, the most active site of the tumor lesion (e.g., the most metabolically active region within the tumor lesion) is typically selected in the model and targeted for resection, and the location and size are determined in the model. One skilled in the art can select the appropriate size and shape for resection; as shown in fig. 2, a scapula reconstruction map of the patient, in which the green part is the tumor resection area;
3) constructing a plurality of scapula filling part fixing nail holes on the initial scapula filling part model;
the scapula filling part fixing nail hole is matched with a scapula filling part fixing nail for fixing the scapula filling part;
the scapula filling part fixing nail can be directly used without modeling, and the hole is arranged according to the type of the selected fixing nail;
4) stretching the contact surface of the model obtained in the step 3) and the cut scapula three-dimensional model inwards and constructing a plurality of scapula filling part fusion surface layer units in a layering manner, constructing a plurality of through holes on each scapula filling part fusion surface layer unit to obtain a scapula filling part fusion surface layer model, taking the rest of the model obtained in the step 3) after the scapula filling part fusion surface layer model is removed as a scapula filling part main body model, and enabling the scapula filling part fusion surface layer model and the scapula filling part main body model to form a scapula filling part model;
the through holes on the fusion surface layer units of the scapula filling parts are communicated with each other; the scapula filling part fusion surface layer model is tightly attached to the scapula three-dimensional model after being cut off, and the scapula filling part fusion surface layer model has a micro-pore structure, so that the scapula filling part fusion surface layer is beneficial to the growth of new bone tissues into the device, the long-term stability is further obtained, and the service life of the device is greatly prolonged;
the porosity of the fusion surface layer model of the scapula filling part is generally 70-80%; the thickness of the fusion surface layer model of the scapula filling part is usually 1.5 mm-2 mm; the aperture of the through hole of the model of the scapula filling part fusion surface layer is usually 500-700 μm, so that the scapula filling part fusion surface layer is more beneficial to the growth of new bone tissues into the device.
The scapula filling part model can be constructed and obtained through the steps 1) to 4), and the model can be used as a shoulder joint filling device model. The construction method can also further comprise the following steps:
5) taking part of the outer surface of the cut scapula three-dimensional model as a fixing piece contact surface, connecting at least part of side edges of the fixing piece contact surface with the shoulder joint filling part model, stretching the fixing piece contact surface outwards and constructing a plurality of fixing piece fusion surface layer units in layers, constructing a plurality of through holes on each fixing piece fusion surface layer unit to obtain a fixing piece fusion surface layer model, further stretching outwards from the surface of the outermost fixing piece fusion surface layer unit to construct a fixing piece main body model, forming an initial fixing piece model by the fixing piece fusion surface layer model and the fixing piece main body model, and enabling the joint of the initial fixing piece model and the scapula filling part model to be in smooth transition; the initial fixing piece model is connected with the outer surface of the scapula filling part model obtained in the step 4), and the initial fixing piece model is attached to the scapula three-dimensional model after resection;
the overall shape of the initial fixing piece model is not limited and generally does not exceed the edge of the scapula; in a preferred embodiment, the initial fixing piece model is Y-shaped, so that the fixing effect is good;
the through holes on the fusion surface layer units of the fixing pieces are communicated with each other; the fixing piece fusion surface layer model is tightly attached to the cut scapula three-dimensional model, and the fixing piece fusion surface layer model has a micropore structure, so that the fixing piece fusion surface layer is beneficial to the growth of new bone tissues into the device, the long-term stability is further obtained, and the service life of the device is greatly prolonged;
the porosity of the fixture fusion facing model is generally 70% -80%; the thickness of the fixed part fusion surface layer model is usually 1.5 mm-2 mm; the aperture of the through hole of the fixing piece fusion surface layer model is usually 500-700 mu m, so that the fixing piece fusion surface layer is more favorable for the growth of new bone tissues into the device;
6) constructing a plurality of fixing piece fixing nail holes on the initial fixing piece model to obtain a fixing piece model;
the fixing piece fixing nail hole is matched with a fixing piece fixing nail for fixing the fixing piece;
this mounting staple can not model, directly uses the staple of current model, and the hole sets up according to the staple model of selection.
A method of making a shoulder joint augmentation device, the method of making comprising: the shoulder joint filling device model is constructed and obtained by the construction method of the shoulder joint filling device model, and the shoulder joint filling device is prepared according to the shoulder joint filling device model.
Preparation of a shoulder joint filling device can be prepared from the shoulder joint filling device model, typically by 3D printing.
The shoulder joint filling device is prepared by a 3D printing technology, completely matches the shape and size of the defective bone of a patient, carries out accurate reconstruction on the defective bone tissue after tumor resection, completely replaces the outer side edge of a scapula, allows a shoulder glenoid to be reserved during an operation, and reserves the function of the shoulder joint to the maximum extent.
A shoulder joint filling device is prepared by the preparation method of the shoulder joint filling device.
A shoulder joint filling device is shown in fig. 3 and 4 and comprises a scapula filling part 1, wherein the scapula filling part 1 is in a shape of scapula defect, the scapula filling part 1 sequentially comprises a scapula filling part fusion surface layer 11 and a scapula filling part main body 12 from scapula cut off near to scapula cut off far away, the contact surface of the scapula filling part 1 and the scapula cut off is provided with the scapula filling part fusion surface layer 11, the scapula filling part fusion surface layer 11 is in a porous structure, and the scapula filling part 1 is provided with a plurality of scapula filling part fixing nail holes 13 penetrating through the scapula filling part fusion surface layer 11 and the scapula filling part main body 12. The scapula filling part 1 and the scapula after being cut form a complete scapula.
The shoulder joint filling device can further comprise a plurality of scapula filling part fixing nails 2, and the scapula filling part fixing nails 2 are matched with the scapula filling part fixing nail holes 13.
The scapula filling part 1 of the shoulder joint filling device is provided with a plurality of scapula filling part fixing nail holes 13 which penetrate through the scapula filling part fusion surface layer 11 and the scapula filling part main body 12, and the shoulder joint filling device can also comprise a plurality of scapula filling part fixing nails 2 which are matched with the scapula filling part fixing nail holes 13, so that the device is favorably and tightly combined with scapula, and the initial fixation can be carried out through the scapula filling part fixing nails during the initial implantation, thereby preventing the displacement of the prosthesis, providing the early stability of the device and being favorable for the early movement of a patient.
The porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated. The scapula filling part fusion surface layer is tightly attached to the scapula after being cut off, and the scapula filling part fusion surface layer is provided with a micro-pore structure, so that the growth of new bone tissues into the device is facilitated, the long-term stability is further obtained, and the service life of the device is greatly prolonged.
The porosity of the fusion surface layer of the scapula filling part is generally 70-80%; the thickness of the fusion surface layer of the scapula filling part is usually 1.5 mm-2 mm; the aperture of the through hole of the scapula filling part fusion surface layer is usually 500-700 μm, so that the scapula filling part fusion surface layer is more beneficial to the growth of new bone tissues into the device.
The shoulder joint filling device can be used for filling shoulder joints, in a preferred embodiment, the shoulder joint filling device further comprises a fixing piece 3, the fixing piece 3 sequentially comprises a fixing piece fusion surface layer 31 and a fixing piece main body 32 from a scapula which is cut off nearly to a scapula which is cut off far away, the fixing piece fusion surface layer 31 is arranged on the contact surface of the fixing piece 3 and the scapula which is cut off, the fixing piece fusion surface layer 31 is of a porous structure, a plurality of fixing piece fixing nail holes 33 which penetrate through the fixing piece fusion surface layer 31 and the fixing piece main body 32 are formed in the fixing piece 3, and the shoulder joint filling part 1 is connected with the fixing piece 3 in a smooth transition mode. The fixing piece fusion surface layer 31 is attached to the contact surface of the scapula after being cut off.
The shoulder joint filling device may further include a plurality of fixing piece fixing nails 4, and the fixing piece fixing nails 4 are matched with the fixing piece fixing nail holes 33.
The fixing piece 3 of the shoulder joint filling device is provided with a plurality of fixing piece fixing nail holes 33 which penetrate through the fixing piece fusion surface layer 31 and the fixing piece main body 32, and also can comprise a plurality of fixing piece fixing nails 4, the fixing piece fixing nails 4 are matched with the fixing piece fixing nail holes 33, so that the device is favorably and tightly combined with the shoulder blade, when the device is initially implanted, the initial fixation can be carried out through the fixing piece fixing nail holes, the displacement of the prosthesis is prevented, the early stability of the device is provided, and the early movement of a patient is facilitated
The overall shape of the fixing piece is not limited, and generally does not exceed the edge of the scapula. The fixing piece is more favorable for the device to be tightly combined with the scapula, and when the fixing piece is initially implanted, the fixing piece can be used for carrying out initial fixing through the fixing nail hole, so that the prosthesis is prevented from being displaced, the early stability of the device is provided, and the early movement of a patient is facilitated. In a preferred embodiment, the fixing member 3 is Y-shaped, and the fixing effect is good.
The porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated. The fixing part fusion surface layer is tightly attached to the scapula after being cut off, and the fixing part fusion surface layer is provided with a micro-pore structure, so that the new bone tissues can grow into the device, the long-term stability is further achieved, and the service life of the device is greatly prolonged.
The porosity of the anchor fusion facing is typically 70% to 80%; the thickness of the fusion surface layer of the fixing piece is usually 1.5 mm-2 mm; the aperture of the through hole of the fusion surface layer of the fixing member is usually 500 μm to 700 μm.
The shoulder joint filling device is shown in fig. 5 and 6 after installation.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of constructing a shoulder joint filling apparatus model as described above.
The computer-readable storage medium, as will be appreciated by one of ordinary skill in the art: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
An apparatus, comprising: a processor and a memory, the memory for storing a computer program, the processor for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a model of a shoulder joint filling device as described above.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (13)
1. A method for constructing a shoulder joint filling device model is characterized by comprising the following steps:
1) constructing a three-dimensional scapula model;
2) determining a resection range, simulating resection on the scapula three-dimensional model to obtain a scapula three-dimensional model after resection, and taking a resection part as an initial scapula filling part model;
3) constructing a plurality of scapula filling part fixing nail holes on the initial scapula filling part model;
4) stretching the contact surface of the model obtained in the step 3) and the cut scapula three-dimensional model inwards and constructing a plurality of scapula filling part fusion surface layer units in a layering mode, constructing a plurality of through holes on each scapula filling part fusion surface layer unit to obtain a scapula filling part fusion surface layer model, taking the rest part of the model obtained in the step 3) after the scapula filling part fusion surface layer model is removed as a scapula filling part main body model, and enabling the scapula filling part fusion surface layer model and the scapula filling part main body model to form the scapula filling part model.
2. The method of constructing a shoulder joint filling apparatus model according to claim 1, further comprising the steps of:
5) taking part of the outer surface of the cut scapula three-dimensional model as a fixing piece contact surface, connecting at least part of side edges of the fixing piece contact surface with the shoulder joint filling part model, stretching the fixing piece contact surface outwards and constructing a plurality of fixing piece fusion surface layer units in layers, constructing a plurality of through holes on each fixing piece fusion surface layer unit to obtain a fixing piece fusion surface layer model, further stretching outwards from the surface of the outermost fixing piece fusion surface layer unit to construct a fixing piece main body model, forming an initial fixing piece model by the fixing piece fusion surface layer model and the fixing piece main body model, and enabling the joint of the initial fixing piece model and the scapula filling part model to be in smooth transition;
6) and constructing a plurality of fixing piece fixing nail holes on the initial fixing piece model to obtain a fixing piece model.
3. A method of constructing a shoulder joint filling apparatus model according to claim 1 or 2, further comprising at least one of the following technical features:
1) in the step 1), the scapula three-dimensional model is constructed by CT data and/or MRI data;
2) in the step 3), the scapula filling part fixing nail hole is matched with a scapula filling part fixing nail for fixing the scapula filling part;
3) in the step 4), the through holes on the fusion surface layer units of the scapula filling parts are communicated with each other;
4) in the step 4), the porosity of the scapula filling part fusion surface layer model is 70-80%;
5) in the step 4), the thickness of the fusion surface layer model of the scapula filling part is 1.5-2 mm;
6) in the step 4), the aperture of the through hole of the scapula filling part fusion surface layer model is 500-700 μm.
4. A method of constructing a shoulder joint filling apparatus model according to claim 2, further comprising at least one of the following technical features:
1) in the step 5), the initial fixing piece model is Y-shaped;
2) in the step 5), through holes on the fusion surface layer units of the fixing pieces are communicated with each other;
3) in the step 5), the porosity of the fixed part fusion surface layer model is 70-80%;
4) in the step 5), the thickness of the fixed part fusion surface layer model is 1.5 mm-2 mm;
5) in the step 5), the aperture of the through hole of the fixing piece fusion surface layer model is 500-700 mu m
6) And 6), matching the fixing piece fixing nail holes with fixing piece fixing nails for fixing the fixing pieces.
5. A method of making a shoulder joint augmentation device, the method comprising: a method of constructing a shoulder joint filling device model according to any one of claims 1 to 4, constructing a shoulder joint filling device model from which a shoulder joint filling device is to be prepared.
6. The method for preparing a shoulder joint filling device according to claim 5, wherein the shoulder joint filling device is prepared by 3D printing.
7. A shoulder joint filling device obtained by the method for producing a shoulder joint filling device according to claim 5 or 6.
8. The shoulder joint filling device is characterized by comprising a scapula filling part (1), wherein the scapula filling part (1) is in a shape of scapula defect, the scapula filling part (1) sequentially comprises a scapula filling part fusion surface layer (11) and a scapula filling part main body (12) from scapula after being cut off to scapula after being cut off far away, the contact surface of the scapula filling part (1) and scapula after being cut off is provided with the scapula filling part fusion surface layer (11), the scapula filling part fusion surface layer (11) is of a porous structure, and a plurality of scapula filling part fixing nail holes (13) which are communicated with the scapula filling part fusion surface layer (11) and the scapula filling part main body (12) are formed in the scapula filling part (1).
9. The shoulder joint augmentation system of claim 8, further comprising at least one of the following features:
1) the scapula filling part fixing nail (2) is matched with the scapula filling part fixing nail hole (13);
2) still include mounting (3), mounting (3) are by shoulder blade after the nearly excision to the shoulder blade after the distant excision include mounting fusion surface course (31) and mounting main part (32) in proper order, mounting (3) are equipped with the contact surface of the shoulder blade after the excision mounting fusion surface course (31), mounting fusion surface course (31) are porous structure, it link up to set up a plurality of on mounting (3) mounting fusion surface course (31) with mounting anchor nail hole (33) of mounting main part (32), shoulder blade filling portion (1) with mounting (3) rounding off connects.
10. Shoulder joint augmentation device according to claim 8 or 9, further comprising at least one of the following technical features:
1) the porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated;
2) the porosity of the fusion surface layer of the scapula filling part is 70-80%;
3) the thickness of the fusion surface layer of the scapula filling part is 1.5 mm-2 mm;
4) the aperture of the through hole of the fusion surface layer of the scapula filling part is 500-700 μm.
11. Shoulder joint augmentation system as claimed in claim 9, characterized in that in feature 2) it further comprises at least one of the following technical features:
1) the fixing piece (3) is Y-shaped;
2) the fixing piece fixing device is characterized by further comprising a plurality of fixing piece fixing nails (4), wherein the fixing piece fixing nails (4) are matched with the fixing piece fixing nail holes (33);
3) the porous structure is a layered structure with a plurality of layers, each layered structure is provided with a plurality of micropores, and the micropores of the layers are mutually communicated;
4) the porosity of the fusing surface layer of the fixing piece is 70-80%;
5) the thickness of the fusion surface layer of the fixing piece is 1.5 mm-2 mm;
6) the aperture of the through hole of the fusing surface layer of the fixing piece is 500-700 mu m;
7) the fixing piece fusion surface layer (31) is attached to the contact surface of the scapula after being cut off.
12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of constructing a shoulder joint filling apparatus model according to any one of claims 1 to 4.
13. An apparatus, comprising: a processor and a memory, the memory for storing a computer program, the processor for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a shoulder joint filling device model according to any of claims 1 to 4.
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