CN210204989U - Acromioclavicular joint replacement prosthesis - Google Patents
Acromioclavicular joint replacement prosthesis Download PDFInfo
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- CN210204989U CN210204989U CN201920199523.1U CN201920199523U CN210204989U CN 210204989 U CN210204989 U CN 210204989U CN 201920199523 U CN201920199523 U CN 201920199523U CN 210204989 U CN210204989 U CN 210204989U
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- joint replacement
- acromioclavicular joint
- replacement prosthesis
- scapula
- covering surface
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Abstract
The utility model provides a acromioclavicular joint replacement prosthesis, including acromioclavicular joint replacement prosthesis body, clavicle shoulder peak end connecting piece and scapula supraspinatus fossa connecting piece, acromioclavicular joint replacement prosthesis body with clavicle shoulder peak end connecting piece rounding off connects, acromioclavicular joint replacement prosthesis body with scapula infraspinatus connecting piece rounding off connects, acromioclavicular joint replacement prosthesis body is the shape of defective acromioclavicular joint's bone tissue. The utility model discloses a acromioclavicular joint replacement prosthesis replaces scapula shoulder peak portion completely, firmly connects the infraspinatus fossa and clavicle acromion end, and the original bone form of the at utmost completion resumes.
Description
Technical Field
The utility model belongs to the technical field of acromioclavicular joint prosthesis, in particular to an acromioclavicular joint replacement prosthesis.
Background
The acromioclavicular joint tumor is one of the good tumor parts of the scapular band part and needs to be removed by operation. 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 scapula part tumor limb protection surgery method 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, the existing acromioclavicular joint prosthesis cannot make up for a large amount of bone defects of the scapula, and is difficult to repair and reconstruct by an operation. The prosthesis does not match the original bone morphology and cannot be reconstructed accurately.
Meanwhile, the conventional acromioclavicular joint prosthesis adopts a traditional material reduction manufacturing mode, the prosthesis and surrounding bones cannot be integrated into a whole, the functions of biological fixation and the like are not realized, and the possibility of long-term fixation and loosening of the prosthesis exists. In addition, the tendon ligament and other attachment points cannot grow together with the prosthesis, and the normal physiological motor mechanics behavior of the knee joint cannot be reconstructed.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims at providing a acromioclavicular joint replacement prosthesis, acromioclavicular joint replacement prosthesis includes acromioclavicular joint replacement prosthesis body, clavicle shoulder peak end connecting piece and scapula infraspinatus connecting piece, acromioclavicular joint replacement prosthesis body with clavicle shoulder peak end connecting piece rounding off connects, acromioclavicular joint replacement prosthesis body with scapula infraspinatus connecting piece rounding off connects, acromioclavicular joint replacement prosthesis body is the shape of defective acromioclavicular joint's bone tissue. The utility model discloses a acromioclavicular joint replacement prosthesis replaces scapula shoulder peak portion completely, firmly connects the infraspinatus fossa and clavicle acromion end, and the original bone form of the at utmost completion resumes.
In order to achieve the above and other related objects, a first aspect of the present invention provides a acromioclavicular joint replacement prosthesis, comprising a acromioclavicular joint replacement prosthesis body, a clavicle acromioclavicular end connector and a scapula infraglenoid connector, the acromioclavicular joint replacement prosthesis body and the clavicle acromioclavicular end connector smooth transition connection, the acromioclavicular joint replacement prosthesis body and the scapula infraglenoid connector smooth transition connection, the acromioclavicular joint replacement prosthesis body is a shape of bone tissue of a defective acromioclavicular joint, and is completely matched with bone tissue of a defective acromioclavicular joint of a patient.
Preferably, the acromioclavicular joint replacement prosthesis body is provided with a first cavity matched with a marrow cavity of the scapula osteotomy surface, and the acromioclavicular joint replacement prosthesis body is inwards recessed at the end close to the scapula infraspinatus connecting piece to form the first cavity.
Preferably, the clavicle joint replacement prosthesis body is provided with a first end face and a second end face at a clavicle acromion end connector end and a near scapula infraglenoid connector end respectively, the clavicle acromion end connector is provided with a first covering surface facing the clavicle acromion end, the scapula infraglenoid connector is provided with a second covering surface facing the scapula infraglenoid, the first end face is in smooth transition connection with the first covering surface, and the second end face is in smooth transition connection with the second covering surface.
More preferably, the bone replacement device further comprises a plurality of first screw holes, wherein the first screw holes penetrate through the clavicle shoulder peak end connecting piece, and the first screw holes are used for fixedly connecting the acromioclavicular joint replacement prosthesis and the clavicle shoulder peak end through screws.
More preferably, the shoulder joint replacement prosthesis further comprises a plurality of second screw holes, wherein the second screw holes penetrate through the scapula infraspinatus connector and are used for fixedly connecting the acromioclavicular joint replacement prosthesis and the scapula infraspinatus through screws.
More preferably, the first end face, the second end face, the first covering surface and the second covering surface are a layered structure of a plurality of layers, each layered structure has a plurality of micropores, and the micropores of each layer are mutually communicated.
Still more preferably, the pore diameter of the micropores of the first end face, the second end face, the first covering face and the second covering face is 600 to 800 μm.
Even more preferably, the first end face, the second end face, the first covering face and the second covering face have a porosity of 60% to 80%; the porosity is a percentage of a pore volume to a total volume in a natural state, for example, the porosity of the first end face is a percentage of a pore volume of the first end face to a total volume of the first end face in a natural state.
Even more preferably, the thickness of the first end face, the second end face, the first covering surface and the second covering surface is 1.5mm to 2.0 mm.
Preferably, the acromioclavicular joint replacement prosthesis also comprises a plurality of muscle ligament insertion points attachment holes which penetrate through the acromioclavicular joint replacement prosthesis body.
As described above, the present invention has at least one of the following advantageous effects:
1) the utility model discloses a acromioclavicular joint replacement prosthesis includes acromioclavicular joint replacement prosthesis body, clavicle acromion end connecting piece and scapula infraspinatus fossa connecting piece, the acromioclavicular joint replacement prosthesis body is the shape of the bone tissue of defective acromioclavicular joint, carries out accurate reconstruction to a large amount of defective bone tissue, has replaced the scapula acromion completely, firm connection scapula infraspinatus fossa and clavicle acromion end, can satisfy original bone shape recovery to the greatest extent;
2) the first end surface, the second end surface, the first covering surface and the second covering surface of the acromioclavicular joint replacement prosthesis are tightly attached to human sclerotin and are of a layered structure with a plurality of layers, the layered structure of each layer is provided with a plurality of micropores, and the micropores of the layers are mutually communicated, so that the bone cells can crawl and grow to generate bone fusion, and the purpose of long-term stability can be achieved;
3) the acromioclavicular joint replacement prosthesis of the utility model further comprises a plurality of first screw holes, wherein the first screw holes penetrate through the clavicle acromion end connecting piece, and the first screw holes are used for fixedly connecting the acromioclavicular joint replacement prosthesis and the clavicle acromion end through screws; still include a plurality of second screw holes, the second screw hole runs through scapula infraspinatus connecting piece, the second screw hole is used for making acromioclavicular joint replacement prosthesis and scapula infraspinatus pass through screw fixed connection, and when initial implantation, can carry out the initial stage through orthopedics screw and fix, prevent that the prosthesis from shifting.
Drawings
Fig. 1 is a schematic structural diagram of the acromioclavicular joint replacement prosthesis according to the present invention.
Fig. 2 is a schematic structural view of the acromioclavicular joint replacement prosthesis of the present invention.
Fig. 3 is a structural diagram showing the first usage state of the acromioclavicular joint replacement prosthesis of the present invention.
Fig. 4 is a layered structure having a plurality of micropores.
Reference numerals:
1 acromioclavicular joint replacement prosthesis body
11 first end face
12 second end face
13 first chamber
2 clavicle shoulder peak end connector
21 first cover surface
3 connector for glenoid fossa
31 second cover surface
4 first screw hole
5 second screw hole
6 micro-hole
7 attachment hole
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 and 4. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
A acromioclavicular joint replacement prosthesis is shown in figures 1 to 3 and comprises a acromioclavicular joint replacement prosthesis body 1, a clavicle acromion end connecting piece 2 and a scapula infraglenoid connecting piece 3, wherein the acromioclavicular joint replacement prosthesis body 1 and the clavicle acromion end connecting piece 2 are in smooth transition connection, the acromioclavicular joint replacement prosthesis body 1 and the scapula infraglenoid connecting piece 3 are in smooth transition connection, the acromioclavicular joint replacement prosthesis body 1 is in the shape of bone tissues of a defect acromioclavicular joint and is completely matched with the bone tissues of the defect acromioclavicular joint of a patient.
In a preferred embodiment, the acromioclavicular joint replacement prosthesis body 1 is provided with a first cavity 13 matched with a marrow cavity of a scapula osteotomy face, and the acromioclavicular joint replacement prosthesis body 1 is inwards concave at the end close to the scapula infraspinatus connecting element 3 to form the first cavity 13.
In a preferred embodiment, the acromioclavicular joint replacement prosthesis body 1 is provided with a first end surface 11 and a second end surface 12 at the clavicle acromion end connector 2 end and the scapula infraglenoid connector 3 end respectively, the clavicle acromion end connector 2 is provided with a first covering surface 21, the first covering surface 21 faces the clavicle acromion end, the scapula infraglenoid connector 3 is provided with a second covering surface 31, the second covering surface 31 faces the scapula infraglenoid, the first end surface 11 is in smooth transition connection with the first covering surface 21, and the second end surface 12 is in smooth transition connection with the second covering surface 31.
In a preferred embodiment, the shoulder joint replacement prosthesis further comprises a plurality of first screw holes 4, wherein the first screw holes 4 penetrate through the clavicular acromion connecting element 2, and the first screw holes 4 are used for fixedly connecting the shoulder joint replacement prosthesis and the clavicular acromion through screws.
In a preferred embodiment, the shoulder joint replacement prosthesis further comprises a plurality of second screw holes 5, wherein the second screw holes 5 penetrate through the scapula infraspinatus connector 3, and the second screw holes 5 are used for fixedly connecting the acromioclavicular joint replacement prosthesis and the scapula infraspinatus through screws.
In a preferred embodiment, as shown in fig. 4, the first end surface 11, the second end surface 12, the first covering surface 21 and the second covering surface 31 are a layered structure of a plurality of layers, each layered structure has a plurality of micropores, and the micropores of each layer are mutually communicated.
In a preferred embodiment, the pore diameter of the micropores 6 of the first end surface 11, the second end surface 12, the first covering surface 21 and the second covering surface 31 is 600 μm to 800 μm.
In a preferred embodiment, the first end face 11, the second end face 12, the first covering face 21 and the second covering face 31 have a porosity of 60% to 80%. The porosity is a percentage of a pore volume to a total volume in a natural state, for example, the porosity of the first end face is a percentage of a pore volume of the first end face to a total volume of the first end face in a natural state.
In a preferred embodiment, the first end surface 11, the second end surface 12, the first covering surface 21 and the second covering surface 31 have a thickness of 1.5mm to 2.0 mm.
In a preferred embodiment, the acromioclavicular joint replacement prosthesis also comprises a plurality of muscle ligament insertion points attachment holes 7, wherein the attachment holes 7 penetrate through the acromioclavicular joint replacement prosthesis body 1, and the attachment holes 7 are used for sewing threads to reattach free muscle ligaments to the acromioclavicular joint replacement prosthesis body 1.
The preparation method of the acromioclavicular joint replacement prosthesis comprises the following steps:
1) obtaining a model of the acromioclavicular joint, such as a Computer aided design model (CAD model;
2) reversely modeling the model obtained in the step 1) to obtain an acromioclavicular joint replacement prosthesis model; is approximately in a C shape;
3) and 3D printing is carried out according to the repairing device model.
In a preferred embodiment, the method comprises the following steps:
1) obtaining a model of the acromioclavicular joint through CT and MRI;
2) carrying out three-dimensional registration fusion on the model obtained in the step 1), and then carrying out reverse modeling to obtain an acromioclavicular joint replacement prosthesis model;
the bone can be observed through CT, the soft tissue can be observed through MRI, the models obtained by the CT and the MRI are subjected to three-dimensional registration fusion, a three-dimensional reconstruction model containing both the bone and the soft tissue is realized, and then reverse modeling can be realized through the existing software, for example: E3D; the three-dimensional registration fused model and the acromioclavicular joint model integrally form a normal acromioclavicular joint model, and the reverse model establishes an acromioclavicular joint replacement prosthesis model by taking the normal acromioclavicular joint model and the three-dimensional registration fused model as references;
3) and 3D printing is carried out according to the repairing device model.
Taking a acromioclavicular joint replacement prosthesis of a patient as an example, when the acromioclavicular joint replacement prosthesis is used, as shown in fig. 3, the acromioclavicular joint replacement prosthesis comprises an acromioclavicular joint replacement prosthesis body 1, a clavicle acromion end connecting piece 2 and a scapula infraglenoid connecting piece 3, the acromioclavicular joint replacement prosthesis body 1 and the clavicle acromion end connecting piece 2 are in smooth transition connection, the acromioclavicular joint replacement prosthesis body 1 and the scapula infraglenoid connecting piece 3 are in smooth transition connection, the acromioclavicular joint replacement prosthesis body 1 is in the shape of bone tissue of a defective acromioclavicular joint and is completely matched with the bone tissue of the defective acromioclavicular joint; the acromioclavicular joint replacement prosthesis also comprises a plurality of attachment holes 7 for muscle ligament insertion points, a first cavity 13 matched with a marrow cavity of a scapula osteotomy face is arranged on the acromioclavicular joint replacement prosthesis body 1, and the first cavity 13 is formed by inwards recessing the acromioclavicular joint replacement prosthesis body 1 at the end close to the connector 3 of the infraglenoid fossa of the scapula; the acromioclavicular joint replacement prosthesis body 1 is provided with a first end face 11 and a second end face 12 at the clavicular peak end connector 2 end and the scapula proximal supraspinatus connector 3 end respectively, the clavicular peak end connector 2 is provided with a first covering face 21, the first covering face 21 faces the clavicular peak end, the scapula infraspinatus connector 3 is provided with a second covering face 31, the second covering face 31 faces the scapula infraspinatus, the first end face 11 is in smooth transition connection with the first covering face 21, the second end face 12 is in smooth transition connection with the second covering face 31, the first end face 11, the second end face 12, the first covering face 21 and the second covering face 31 are of a plurality of layers of layered structures, each layer of layered structure is provided with a plurality of micropores, the micropores of the layers are mutually communicated, and the first end face 11, the second end face 12, the micropores of the layer are mutually communicated with one another, The aperture of the micropores 6 of the first covering surface 21 and the second covering surface 31 is 600-800 μm, the porosity is 60-80%, and the thickness is 1.5-2.0 mm; acromioclavicular joint replacement prosthesis still includes a plurality of first screw holes 4 and a plurality of second screw hole 5, first screw hole 4 runs through clavicle shoulder peak end connecting piece 2, first screw hole 4 is used for making acromioclavicular joint replacement prosthesis and clavicle shoulder peak end are through screw fixed connection, second screw hole 5 runs through scapula supraspinatus fossa connecting piece 3, second screw hole 5 is used for making acromioclavicular joint replacement prosthesis and scapula infraspinatus fossa are through screw fixed connection, when initial implantation, can carry out the initial stage through orthopedic screw and fix, prevent that the prosthesis from shifting.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may 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 (10)
1. The acromioclavicular joint replacement prosthesis is characterized by comprising an acromioclavicular joint replacement prosthesis body (1), a clavicle acromion end connecting piece (2) and a scapula infraglenoid connecting piece (3), wherein the acromioclavicular joint replacement prosthesis body (1) is in smooth transition connection with the clavicle acromion end connecting piece (2), the acromioclavicular joint replacement prosthesis body (1) is in smooth transition connection with the scapula infraglenoid connecting piece (3), and the acromioclavicular joint replacement prosthesis body (1) is in the shape of bone tissues of a defective acromioclavicular joint.
2. The acromioclavicular joint replacement prosthesis according to claim 1, wherein the acromioclavicular joint replacement prosthesis body (1) is provided with a first cavity (13) matching the medullary cavity of the scapula osteotomy face, and the acromioclavicular joint replacement prosthesis body (1) is inwardly recessed at the end near the scapula infraspinatus junction element (3) to form the first cavity (13).
3. The acromioclavicular joint replacement prosthesis according to claim 1 or 2, wherein the acromioclavicular joint replacement prosthesis body (1) is provided with a first end surface (11) and a second end surface (12) at the clavicular acromion connector (2) end and the scapula proximal infraglenoid connector (3) end, respectively, the clavicular acromion connector (2) is provided with a first covering surface (21), the first covering surface (21) faces the clavicular acromion end, the scapula infraglenoid connector (3) is provided with a second covering surface (31), the second covering surface (31) faces the scapula infraglenoid, the first end surface (11) is smoothly transitionally connected with the first covering surface (21), and the second end surface (12) is smoothly transitionally connected with the second covering surface (31).
4. The acromioclavicular joint replacement prosthesis according to claim 3, further comprising a plurality of first screw holes (4), said first screw holes (4) extending through said clavicular acromion end attachment element (2), said first screw holes (4) adapted for screw fixation of said acromioclavicular joint replacement prosthesis to the clavicular acromion end.
5. The acromioclavicular joint replacement prosthesis according to claim 3, further comprising a plurality of second screw holes (5), wherein said second screw holes (5) penetrate through said scapula infraspinatus connector (3), said second screw holes (5) being used for screw fixation of said acromioclavicular joint replacement prosthesis to the scapula infraspinatus.
6. The acromioclavicular joint replacement prosthesis according to claim 3, wherein said first end surface (11), said second end surface (12), said first covering surface (21) and said second covering surface (31) are a layered structure of a plurality of layers, each layered structure having a plurality of pores, the pores of a layer being interconnected with the pores of a layer.
7. The acromioclavicular joint replacement prosthesis according to claim 6, wherein the pores (6) of said first face (11), said second face (12), said first covering surface (21) and said second covering surface (31) have a pore size of 600 μm to 800 μm.
8. The acromioclavicular joint replacement prosthesis according to claim 6, wherein a porosity of said first face (11), said second face (12), said first covering surface (21) and said second covering surface (31) is 60% to 80%.
9. The acromioclavicular joint replacement prosthesis according to claim 6, wherein said first end surface (11), said second end surface (12), said first covering surface (21) and said second covering surface (31) have a thickness of 1.5mm to 2.0 mm.
10. The acromioclavicular joint replacement prosthesis according to claim 1, further comprising a plurality of attachment holes (7) for muscle ligament insertion points, said attachment holes (7) extending through said acromioclavicular joint replacement prosthesis body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199523.1U CN210204989U (en) | 2019-02-15 | 2019-02-15 | Acromioclavicular joint replacement prosthesis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199523.1U CN210204989U (en) | 2019-02-15 | 2019-02-15 | Acromioclavicular joint replacement prosthesis |
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| CN210204989U true CN210204989U (en) | 2020-03-31 |
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| CN201920199523.1U Active CN210204989U (en) | 2019-02-15 | 2019-02-15 | Acromioclavicular joint replacement prosthesis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745153A (en) * | 2019-02-15 | 2019-05-14 | 上海交通大学医学院附属第九人民医院 | A kind of acromioclavicular joint replacement prosthesis and preparation method thereof of 3D printing personalization |
| CN113425464A (en) * | 2021-05-11 | 2021-09-24 | 上海市第一人民医院 | Joint prosthesis |
-
2019
- 2019-02-15 CN CN201920199523.1U patent/CN210204989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745153A (en) * | 2019-02-15 | 2019-05-14 | 上海交通大学医学院附属第九人民医院 | A kind of acromioclavicular joint replacement prosthesis and preparation method thereof of 3D printing personalization |
| CN113425464A (en) * | 2021-05-11 | 2021-09-24 | 上海市第一人民医院 | Joint prosthesis |
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