CN213310610U - 3D prints distal humerus prosthesis - Google Patents
3D prints distal humerus prosthesis Download PDFInfo
- Publication number
- CN213310610U CN213310610U CN202021698697.1U CN202021698697U CN213310610U CN 213310610 U CN213310610 U CN 213310610U CN 202021698697 U CN202021698697 U CN 202021698697U CN 213310610 U CN213310610 U CN 213310610U
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- Prior art keywords
- prosthesis
- bone
- prosthesis body
- microporous
- microporous structure
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- 210000002758 humerus Anatomy 0.000 title claims abstract description 15
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 41
- 210000002310 elbow joint Anatomy 0.000 claims abstract description 23
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 12
- 230000009286 beneficial effect Effects 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 2
- 210000000784 arm bone Anatomy 0.000 abstract description 6
- 238000010146 3D printing Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000035790 physiological processes and functions Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 9
- 210000003041 ligament Anatomy 0.000 description 4
- 210000002435 tendon Anatomy 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 210000000623 ulna Anatomy 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- 206010003246 arthritis Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model provides a 3D printing humerus distal prosthesis, which comprises a prosthesis body, wherein the bottom of the prosthesis body is provided with an elbow joint surface; the top of the prosthesis body is provided with a intramedullary pin and a bone fracture plate, and the bone fracture plate and the intramedullary pin are respectively provided with a corresponding locking nail hole and a corresponding fixing hole; a first micropore structure is arranged on the connection area of the prosthesis body and the broach; bone grafting holes are respectively formed in two sides of the bottom of the prosthesis body, and second microporous structures are distributed around the bone grafting holes; the prosthesis body is also provided with a plurality of suture holes, and each suture hole is positioned between the first microporous structure and the second microporous structure. The utility model discloses a 3D prints upper arm bone distal end prosthesis utilizes the cooperation of broach and coaptation board and sews up the hole and plant bone hole, first microporous construction and second microporous construction, and this prosthesis can realize restoring elbow joint's physiological function because of the damaged joint replacement of elbow joint large-section bone, and stability after implanting the sick human body is better, can realize the long-term stability of prosthesis.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to 3D prints upper arm bone distal end false body.
Background
The elbow replacement provides stability to the patient, allowing him to perform his upper limb functions painlessly, powerfully and maximally during daily activities. The types of elbow replacement prostheses currently on the market can be divided into three categories: fully constrained prostheses, semi-constrained prostheses, and unconstrained prostheses. Wherein, the completely restricted prosthesis is suitable for the remedial operation of the elbow joint in the late stage, such as patients with serious bone defect and patients who can not be repaired in the operation due to the soft tissue damage; the semi-limited prosthesis is suitable for patients with obvious bone destruction or serious bone defect, and instability caused by serious invasion of elbow joints by arthritis; the non-limiting prosthesis is suitable for patients with obviously limited elbow joint motion, good bone conditions and basically stable joints. However, these types of prostheses require a complete elbow replacement, including the humerus as well as the radius, ulna, etc., which in turn causes unnecessary trauma to the patient with intact ulna and radius. Meanwhile, the prosthesis currently marketed cannot meet the symptoms of large humeral bone defects.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a 3D prints upper arm bone distal end prosthesis to solve the above-mentioned technical problem among the prior art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
A3D printing humerus distal prosthesis comprises a prosthesis body, wherein an elbow joint surface is arranged at the bottom of the prosthesis body, a broach and a bone fracture plate are arranged at the top of the prosthesis body, a fixing hole is formed in the broach, and a locking nail hole opposite to the fixing hole is formed in the bone fracture plate; one end of the prosthesis body, which is close to the bone fracture plate, is provided with a first microporous structure which is used for contacting with bone tissues and is beneficial to bone ingrowth; bone grafting holes are respectively formed in two sides of the bottom of the prosthesis body, and second microporous structures are distributed around the bone grafting holes; the prosthesis body is further provided with a plurality of suture holes, and each suture hole is located between the first microporous structure and the second microporous structure.
Preferably, the number of the fixing holes on the broach and the number of the locking nail holes on the bone plate are two or three.
Preferably, the pore size of the first microporous structure is 500-700 μm on average, and the porosity is 60-80%.
Preferably, the size of the second microporous structure is the same as the size of the first microporous structure.
Preferably, the prosthesis body, the broach, the bone plate, and the elbow facet are all made of a titanium alloy material and are of a unitary construction.
The beneficial effects of the utility model reside in that:
the utility model discloses a 3D prints upper arm bone distal end false body, the top of its false body, namely the false body near-end also is close to one side of people's head on the false body, can realize reliably fixing through the combination of broach and coaptation board, be provided with lock pin hole, fixed orifices on coaptation board and the intramedullary nail, cooperate in the art to use the uide bushing commonly used in clinical, fix the uide bushing through the fixed orifices, be convenient for fix the nail way direction; meanwhile, the first microporous structure is beneficial to the attachment and the growth of bone tissues so as to realize long-term stability; utilizing the suture holes to suture the ligament and the tendon; the bone grafting hole is convenient for bone grafting in operation, and the second microporous structure is favorable for attachment and growth of ligament and tendon tissue in clinic and stability of prosthesis. An elbow joint surface is arranged at the bottom of the prosthesis body, namely the distal end of the prosthesis body, is smooth and has the same shape as a normal elbow joint surface, so that the elbow joint mobility can be recovered, and the complex curved surface on the elbow joint surface can restrict the elbow joint surface from coming off to a certain extent, so that the 3D printing humerus distal end prosthesis can be firmly fixed; moreover, the geometrical design of the humerus distal prosthesis is based on the geometrical shapes of the bone defect region and the healthy side humerus, so that the humerus distal prosthesis manufactured by 3D printing can restore the shape of the bone defect region, and the filling of the large-section bone defect is realized. Meanwhile, the prosthesis can restore the normal physiological function of the elbow joint.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments are briefly introduced below, and the detailed description of the embodiments of the present invention is further described with reference to the drawings, wherein
Fig. 1 is a schematic view of a 3D printed humeral distal prosthesis provided by an embodiment of the present invention;
fig. 2 is another schematic view of a 3D printed humeral distal prosthesis provided by an embodiment of the present invention.
In the drawings, the reference numbers:
1. a prosthesis body 1-1, a medullary nail 1-2, a first microporous structure 1-3, a suture hole
1-4 parts of bone grafting hole, 1-5 parts of bone fracture plate, 1-6 parts of elbow joint surface and 1-7 parts of lock pin hole
1-8, fixing hole
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to specific embodiments.
As shown in fig. 1 and 2, the embodiment of the present invention provides a 3D printed distal humerus prosthesis, which includes a prosthesis body 1, wherein an elbow joint surface 1-6 is provided at the bottom of the prosthesis body 1; the top of the prosthesis body 1 is provided with a broach 1-1 and a bone fracture plate 1-5, the broach is provided with fixing holes 1-8, and the bone fracture plate is provided with locking nail holes 1-7 opposite to the fixing holes; one end of the prosthesis body 1, which is close to the bone fracture plate, is provided with a first microporous structure 1-2 which is used for contacting with bone tissues and is beneficial to bone ingrowth; bone grafting holes 1-4 are respectively formed in two sides of the bottom of the prosthesis body 1, and second microporous structures are distributed around the bone grafting holes; the prosthesis body is also provided with a plurality of suture holes 1-3, and each suture hole 1-3 is positioned between the first microporous structure and the second microporous structure.
The embodiment of the utility model provides a 3D prints upper arm bone distal end prosthesis, the top of its prosthesis body 1, namely the prosthesis near-end also is the one side that is close to the people's head on the prosthesis body, can realize reliably fixing through the combination of broach 1-1 and coaptation board 1-5, be provided with lock nail hole, fixed orifices on coaptation board and the intramedullary nail, cooperate in the art to use the uide bushing commonly used in clinical, fix the uide bushing through the fixed orifices, be convenient for the direction of fixed screw passageway; meanwhile, the first microporous structure 1-2 is beneficial to the attachment and the growth of bone tissues so as to realize long-term stability; utilizing the suture holes 1-3 to suture the ligament and the tendon; the bone grafting hole is convenient for bone grafting in operation, and the second microporous structure is favorable for attachment and growth of ligament and tendon tissue in clinic and stability of prosthesis. The bottom of the prosthesis body 1, namely the distal end of the prosthesis, is provided with elbow joint surfaces 1-6 which are smooth and have the same shape as a normal elbow joint surface, so that the elbow joint mobility can be recovered, and the complex curved surface on the joint surface can restrict the elbow joint surface from coming off to a certain extent, so that the 3D printing humerus distal end prosthesis can be firmly fixed; moreover, the geometrical design of the humerus distal prosthesis is based on the geometrical shapes of the bone defect region and the healthy side humerus, so that the humerus distal prosthesis manufactured by 3D printing can restore the shape of the bone defect region, realize filling of large-section bone defects and restore the physiological functions of elbow joints.
Furthermore, the number of the fixing holes on the broach 1-1 and the number of the locking nail holes on the bone plate 1-5 are two or three respectively, so that the stability of the prosthesis after being implanted can be better ensured.
It may be preferable that the first microporous structure 1-2 has a pore size of 500-700 μm on average and a porosity of 60-80%.
In particular, the size of the second microporous structure may be the same as the size of the first microporous structure.
As shown in fig. 1, it is preferable that five suture holes are provided between the first microporous structure 1-2 and the second microporous structure on the left side; six suture holes are arranged between the first microporous structure 1-2 and the second microporous structure on the right side.
Preferably, the prosthesis body, the broach, the bone plate, and the elbow facet are all made of a titanium alloy material and are of a unitary construction.
The utility model discloses a 3D prints upper arm bone distal end prosthesis, the top of its prosthesis body is through the cooperation of broach 1-1 and coaptation board 1-5, can guarantee the initial stability after the prosthesis implants the disease human body, after bone tissue grows into first microporous structure 1-2 can realize the long-term stability of prosthesis, is provided with the elbow joint face on the prosthesis body, and its appearance is the same with the appearance of the normal elbow joint face of disease, can resume the mobility of upper limbs well; the prosthesis can be made of titanium alloy material through an additive manufacturing process, the geometric appearance of the prosthesis is a customized design according to patient data, and the prosthesis is realized by combining additive manufacturing.
The above are only preferred embodiments of the present invention, and it should be noted that these examples are only used for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope defined by the claims attached to the present application.
Claims (5)
1. A3D printing humerus far-end prosthesis is characterized by comprising a prosthesis body, wherein an elbow joint surface is arranged at the bottom of the prosthesis body, a broach and a bone fracture plate are arranged at the top of the prosthesis body, a fixing hole is formed in the broach, and a locking nail hole opposite to the fixing hole is formed in the bone fracture plate; one end of the prosthesis body, which is close to the bone fracture plate, is provided with a first microporous structure which is used for contacting with bone tissues and is beneficial to bone ingrowth; bone grafting holes are respectively formed in two sides of the bottom of the prosthesis body, and second microporous structures are distributed around the bone grafting holes; the prosthesis body is further provided with a plurality of suture holes, and each suture hole is located between the first microporous structure and the second microporous structure.
2. The 3D printed distal humeral prosthesis of claim 1, wherein the number of fixation holes on the broach and the number of locking pin holes on the bone plate are two or three.
3. The 3D printed distal humeral prosthesis of claim 1, wherein the first microporous structure has an average pore size of 500-700 μm and a porosity of 60-80%.
4. The 3D printed distal humeral prosthesis of claim 1, wherein the second microporous structure is the same size as the first microporous structure.
5. The 3D printed distal humeral prosthesis of any of claims 1 through 4, wherein the prosthesis body, the broach, the bone plate, and the elbow surface are all made of a titanium alloy material and are a unitary structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021698697.1U CN213310610U (en) | 2020-08-14 | 2020-08-14 | 3D prints distal humerus prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021698697.1U CN213310610U (en) | 2020-08-14 | 2020-08-14 | 3D prints distal humerus prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213310610U true CN213310610U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021698697.1U Active CN213310610U (en) | 2020-08-14 | 2020-08-14 | 3D prints distal humerus prosthesis |
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| CN (1) | CN213310610U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730045A (en) * | 2021-10-18 | 2021-12-03 | 上海市第六人民医院 | Distal humerus prosthesis structure |
| CN115414159A (en) * | 2022-09-19 | 2022-12-02 | 中国人民解放军联勤保障部队第九二〇医院 | Artificial scaphoid prosthesis and preparation method and preparation tool thereof |
-
2020
- 2020-08-14 CN CN202021698697.1U patent/CN213310610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730045A (en) * | 2021-10-18 | 2021-12-03 | 上海市第六人民医院 | Distal humerus prosthesis structure |
| CN115414159A (en) * | 2022-09-19 | 2022-12-02 | 中国人民解放军联勤保障部队第九二〇医院 | Artificial scaphoid prosthesis and preparation method and preparation tool thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240109 Address after: 102200 Beijing science and Technology Park of Changping District Bai Fu Road 10 Patentee after: BEIJING AK MEDICAL Co.,Ltd. Address before: 100191 No. 49 Garden North Road, Beijing, Haidian District Patentee before: PEKING University THIRD HOSPITAL (PEKING UNIVERSITY THIRD CLINICAL MEDICAL College) |