CN113730044B - Hip joint prosthesis - Google Patents
Hip joint prosthesis Download PDFInfo
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- CN113730044B CN113730044B CN202111302967.1A CN202111302967A CN113730044B CN 113730044 B CN113730044 B CN 113730044B CN 202111302967 A CN202111302967 A CN 202111302967A CN 113730044 B CN113730044 B CN 113730044B
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- 210000004394 hip joint Anatomy 0.000 title claims abstract description 47
- 210000000588 acetabulum Anatomy 0.000 claims abstract description 43
- 210000001981 hip bone Anatomy 0.000 claims abstract description 21
- 210000001624 hip Anatomy 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 10
- 239000011148 porous material Substances 0.000 description 4
- 208000012659 Joint disease Diseases 0.000 description 3
- 208000036487 Arthropathies Diseases 0.000 description 2
- 206010023204 Joint dislocation Diseases 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000007446 Hip Dislocation Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000501 femur body Anatomy 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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Classifications
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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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- 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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
-
- 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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3429—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line
- A61F2002/343—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line partial, i.e. not extending along the entire equatorial circumference
-
- 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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/348—Additional features
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a hip joint prosthesis, comprising: the prosthesis body is positioned on one side of the acetabulum, the lower end of the prosthesis body is provided with a first curved surface matched with the outer wall of the acetabulum, and the prosthesis body can be abutted with the outer wall of the acetabulum through the first curved surface; the connecting piece is arranged on the prosthesis body, and the prosthesis body is connected with the hip bone body through the connecting piece. Through the technical scheme provided by the application, the problem that the whole acetabulum is replaced by adopting an artificial hip joint replacement operation in the related technology and the damage to a patient is serious can be solved.
Description
Technical Field
The invention relates to the technical field of prostheses, in particular to a hip joint prosthesis.
Background
The hip bone comprises a hip bone body and an acetabulum, the femur comprises a femur body and a femoral head, and the femoral head extends into the acetabulum to form a hip joint. The artificial hip joint replacement operation is to realize the treatment of the hip joint by directly adopting an acetabulum cup prosthesis to replace an acetabulum.
In the related art, for the treatment of a patient with developmental slight dislocation of the hip joint and the early stage of hip joint arthropathy, the whole acetabulum is replaced by adopting an artificial hip joint replacement operation, and the damage to the patient is serious.
Disclosure of Invention
The invention provides a hip joint prosthesis, which aims to solve the problem that the whole acetabulum is replaced by adopting an artificial hip joint replacement operation in the related art, so that the damage to a patient is serious.
The invention provides a hip joint prosthesis, comprising: the prosthesis body is positioned on one side of the acetabulum, the lower end of the prosthesis body is provided with a first curved surface matched with the outer wall of the acetabulum, and the prosthesis body can be abutted with the outer wall of the acetabulum through the first curved surface; the connecting piece is arranged on the prosthesis body, and the prosthesis body is connected with the hip bone body through the connecting piece.
Furthermore, the hip joint prosthesis also comprises a lining, the lining is arranged at the lower end of the prosthesis body, the lower end of the lining is provided with a second curved surface matched with the outer wall of the acetabulum, and the prosthesis body can be abutted with the outer wall of the acetabulum through the second curved surface.
Furthermore, the upper end of the lining is provided with a clamping groove, and the lower end of the prosthesis body is provided with a boss in clamping fit with the clamping groove; or the upper end of the lining is provided with a boss, and the lower end of the prosthesis body is provided with a clamping groove in clamping fit with the boss.
Furthermore, the connecting piece comprises a screw, the prosthesis body is provided with a connecting hole, and the screw penetrates through the connecting hole and is connected with the hip bone body.
Furthermore, the connecting piece also comprises a fixing nail, the fixing nail is arranged on one side of the prosthesis body facing the hip bone body, and the surface of the fixing nail is provided with a first porous structure.
Further, the fixing nail is provided with a first Kirschner wire hole, and the first Kirschner wire hole extends along the axial direction of the fixing nail and penetrates through the fixing nail.
Further, the prosthesis body has a second k-wire hole disposed therethrough.
Furthermore, the prosthesis body comprises a first body and a second body, the lower end of the first body is hinged with the lower end of the second body, and the upper end of the first body is connected with the upper end of the second body; or the upper end of the first body is hinged with the upper end of the second body, and the lower end of the first body is connected with the lower end of the second body.
Furthermore, the upper end of the first body is provided with a first through hole, the upper end of the second body is provided with a second through hole, the hip joint prosthesis also comprises a fastener, and the first body and the second body are connected through the first through hole and the second through hole in a penetrating manner through the fastener; and/or one side of the first body, which is close to the second body, is provided with a first step, the second body is provided with a second step which is arranged corresponding to the first step, the first step and the second step both extend along the upper and lower directions of the prosthesis body, and the first step and the second step are matched in an inserting manner.
Furthermore, the prosthesis body comprises a connecting section and a supporting section positioned below the connecting section, the first curved surface is arranged at the lower end of the supporting section, and the size of the supporting section is gradually increased in the direction from top to bottom; and/or one side of the prosthesis body connected with the hip bone body is provided with a second porous structure.
By applying the technical scheme of the invention, the hip joint prosthesis comprises a prosthesis body and a connecting piece, wherein the prosthesis body is arranged on one side of the acetabulum, the lower end of the prosthesis body is provided with a first curved surface matched with the outer wall of the acetabulum, the prosthesis body can be abutted against the outer wall of the acetabulum through the first curved surface, the connecting piece is arranged on the prosthesis body, and the prosthesis body is connected with the hip bone body through the connecting piece. For the treatment of developmental slight dislocation of hip joint and early stage of hip joint disease, the hip joint prosthesis provided by the invention does not need to replace the whole acetabulum by adopting an artificial hip joint replacement operation, thereby reducing the damage to the patient.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic view of the installation of a hip prosthesis according to an embodiment of the present invention;
FIG. 2 shows a front view of the prosthesis body of FIG. 1;
FIG. 3 shows a side view of the prosthesis body of FIG. 1;
FIG. 4 shows a cross-sectional view of the prosthesis body of FIG. 1;
FIG. 5 is a schematic structural view of a hip prosthesis according to a third embodiment of the present invention;
FIG. 6 is a schematic structural view showing another state of a hip prosthesis according to the third embodiment of the present invention;
FIG. 7 shows a side view of a hip prosthesis according to a third embodiment of the present invention;
FIG. 8 shows a schematic view of the installation of a hip prosthesis according to a second embodiment of the invention;
FIG. 9 shows a schematic assembly of the prosthesis body and liner of FIG. 8;
FIG. 10 shows a side view of the prosthesis body and liner of FIG. 8;
FIG. 11 shows a cross-sectional view of the prosthesis body and liner of FIG. 8.
Wherein the figures include the following reference numerals:
10. a hip bone body;
20. a prosthesis body; 21. a first curved surface; 22. connecting holes; 23. a second k-wire hole; 24. a first body; 241. a first through hole; 242. a first step; 25. a second body; 251. a second through hole; 26. a connecting section; 27. a support section;
30. a connecting member; 31. fixing nails; 312. a first k-wire hole; 32. a fastener;
40. a liner; 41. a second curved surface;
50. a card slot; 51. a boss;
60. the acetabulum.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a hip joint prosthesis according to an embodiment of the present invention includes a prosthesis body 20 and a connecting member 30. The prosthesis body 20 is located at one side of the acetabulum 60, the lower end of the prosthesis body 20 is provided with a first curved surface 21 matched with the outer wall of the acetabulum 60, and the prosthesis body 20 can be abutted with the outer wall of the acetabulum 60 through the first curved surface 21. The connecting element 30 is arranged on the prosthesis body 20, and the prosthesis body 20 is connected with the hip bone body 10 through the connecting element 30.
With the hip joint prosthesis provided by the embodiment, the prosthesis body 20 is arranged on one side of the acetabulum 60, the lower end of the prosthesis body 20 is provided with the first curved surface 21 matched with the outer wall of the acetabulum 60, the prosthesis body 20 can be abutted with the outer wall of the acetabulum 60 through the first curved surface 21, the connecting piece 30 is arranged on the prosthesis body 20, and the prosthesis body 20 is connected with the hip bone body 10 through the connecting piece 30. For the treatment of the developmental slight hip dislocation patient and the early stage hip arthropathy, the hip joint prosthesis provided by the invention is adopted, the prosthesis body 20 is installed on the hip bone body 10 by using the connecting piece 30, the first curved surface 21 of the prosthesis body 20 is abutted against the outer wall of the acetabulum 60, the whole acetabulum 60 is not required to be replaced by adopting an artificial hip joint replacement operation, and the damage to the patient is reduced.
Specifically, the artificial hip replacement surgery is as follows: the prosthesis is arranged on the bone of a patient by utilizing connecting pieces such as screws and the like to replace the diseased joint of the patient, so as to reconstruct the hip joint function of the patient, wherein the prosthesis comprises a femur prosthesis and an acetabulum prosthesis.
In the present embodiment, the lower end of the prosthesis body 20 is the lower end in fig. 2 only for easy understanding. Specifically, the lower end of the prosthesis body 20 is the end of the prosthesis body 20 proximate the acetabulum 60.
Specifically, the prosthesis body 20 is integrally formed using Electron Beam Melting (Electron Beam Melting) 3D printing technology.
As shown in FIG. 2, the connecting member 30 comprises a screw, the prosthesis body 20 is provided with a connecting hole 22, and the screw is inserted through the connecting hole 22 and connected with the hip bone body 10. By adopting the connecting structure, the connecting structure has the advantages of simple connecting structure and convenience in assembly.
In this embodiment, the connecting holes 22 are plural and have steps, which facilitates the embedding of the nut of the screw into the prosthesis body 20, and avoids the interference and friction between the nut of the screw and the human bone or tissue.
As shown in FIG. 3, the connecting element 30 further includes a fixation nail 31, the fixation nail 31 being disposed on the side of the prosthesis body 20 facing the hip body 10, the surface of the fixation nail 31 being provided with a first porous structure. The fixing nail 31 is adopted, and the first porous structure is arranged on the surface of the fixing nail 31, so that the bone tissue can grow in conveniently, and further the long-term fixation of the hip joint prosthesis can be realized.
In this embodiment, the surface of the nail 31 is a trabecular bone-like porous structure, the porosity is 50% -80%, and the pore diameter is 800 μm ± 200 μm.
Wherein the first porous structure may have a porosity of any one of 50%, 60%, 70%, 80% and between 50% and 80%. The pore size of the first porous structure may be any of 600 μm, 700 μm, 800 μm, 900 μm, 1000 μm and between 600 μm and 1000 μm.
As shown in fig. 3 and 4, the fixing nail 31 has a first k-wire hole 312, and the first k-wire hole 312 extends in the axial direction of the fixing nail 31 and is provided through the fixing nail 31. With the adoption of the structure, the kirschner wires are inserted into the first kirschner wire holes 312, so that the thickness of the residual bone of the patient can be conveniently measured by the kirschner wires, and the length of the fixing nail 31 can be further determined.
As shown in FIG. 2, the prosthesis body 20 has a second K-wire hole 23 disposed therethrough. By inserting the k-wires in the second k-wire holes 23, a temporary fixation of the hip prosthesis can be achieved.
In the present embodiment, the screw, the first k-wire hole 312 and the second k-wire hole 23 are arranged at intervals.
As shown in FIG. 2, the prosthesis body 20 includes a connection section 26 and a support section 27 located below the connection section 26, the first curved surface 21 is disposed at the lower end of the support section 27, and the size of the support section 27 gradually increases in the direction from top to bottom, and with the above size arrangement, the shape of the prosthesis body 20 can be adapted to the patient's hip bone body, thereby improving the experience of the patient.
Specifically, since the size of the supporting section 27 is gradually increased in the direction from top to bottom, the supporting section 27 has a sufficiently large contact area with the acetabulum 60, so that the supporting section 27 can be used to effectively and stably support the acetabulum 60.
Wherein the side of the prosthesis body 20 connected with the hip body 10 is provided with a second porous structure. The second porous structure facilitates the ingrowth of bone tissue and facilitates the integration of the hip prosthesis with the bone of the patient.
In this embodiment, the porosity of the second porous structure is a bone-like trabecular porous structure, 50% -80%, and the pore diameter is 800 μm ± 200 μm.
Wherein the porosity of the second porous structure may be any of 50%, 60%, 70%, 80%, and between 50% and 80%. The pore size of the second porous structure may be any of 600 μm, 700 μm, 800 μm, 900 μm, 1000 μm and between 600 μm and 1000 μm.
It should be noted that the hip joint prosthesis provided in this embodiment may be implanted in the iliac wing, ischial branch, pubic branch, and the like of the patient.
As shown in fig. 8 to 11, a hip joint prosthesis according to a second embodiment of the present invention is provided, which is different from the first embodiment in that the hip joint prosthesis further includes a liner 40.
Specifically, the liner 40 is disposed at the lower end of the prosthesis body 20, the lower end of the liner 40 has a second curved surface 41 adapted to the outer wall of the acetabulum 60, and the prosthesis body 20 can abut against the outer wall of the acetabulum 60 through the second curved surface 41. By arranging the inner liner 40 at the lower end of the prosthesis body 20, when the patient has seriously damaged the hip bone body, the second curved surface 41 of the inner liner 40 can be used to abut against the outer wall of the acetabulum 60, so that the application range of the hip joint prosthesis can be further enlarged.
Wherein, the lining 40 is made of medical wear-resistant materials such as polyethylene and the like.
In this embodiment, the liner 40 is designed with a second curved surface 41 of different thickness and different form, which is convenient for intraoperative selection.
As shown in FIG. 11, the upper end of the liner 40 is provided with a slot 50, and the lower end of the prosthesis body 20 is provided with a boss 51 which is in snap fit with the slot 50. Or, the upper end of the lining 40 is provided with a boss 51, and the lower end of the prosthesis body 20 is provided with a clamping groove 50 in clamping fit with the boss 51. The lining 40 and the prosthesis body 20 can be connected and limited by the clamping groove 50 and the boss 51.
In this embodiment, the upper end of the lining 40 is provided with a slot 50, the lower end of the prosthesis body 20 is provided with a boss 51 which is in snap fit with the slot 50, the slot 50 is a dovetail groove, and the shape and size of the boss 51 are matched with the shape and size of the slot 50.
As shown in fig. 5 to 7, a hip joint prosthesis is provided in a third embodiment of the present invention, which is different from the first embodiment in that the prosthesis body 20 includes a first body 24 and a second body 25 that are relatively movable.
Wherein, the lower extreme of first body 24 is articulated mutually with the lower extreme of second body 25, and the upper end of first body 24 is connected with the upper end of second body 25. Or, the upper end of the first body 24 is hinged with the upper end of the second body 25, and the lower end of the first body 24 is connected with the lower end of the second body 25. By arranging the prosthesis body 20 as the first body 24 and the second body 25 and connecting the first body 24 and the second body 25 in a hinged manner, when the hip bone body of the patient is fractured or fractured, the first body 24 and the second body 25 can be used for tightly connecting the fractured or fractured parts of the patient, so that the healing of bone is accelerated.
As shown in fig. 5, the upper end of the first body 24 is provided with a first through hole 241, the upper end of the second body 25 is provided with a second through hole 251, the hip joint prosthesis further comprises a fastener 32, and the first body 24 and the second body 25 are connected by the fastener 32 passing through the first through hole 241 and the second through hole 251. The use of the fastener 32 to connect the first body 24 and the second body 25 has the advantage of facilitating assembly.
In this embodiment, a side of the first body 24 close to the second body 25 is provided with a first step 242, the second body 25 has a second step corresponding to the first step 242, the first step 242 and the second step both extend along the up-down direction of the prosthesis body 20, and the first step 242 and the second step are inserted and matched. With the above structure, the first body 24 and the second body 25 are limited by the first step 242 and the second step, so that the first body 24 and the second body 25 are not dislocated.
It should be noted that, the insertion and matching of the first step 242 and the second step means that the horizontal step surface of the first step 242 is abutted against the horizontal step surface of the second step, and the vertical step surface of the first step 242 is abutted against the vertical step surface of the second step.
The hip joint prosthesis provided by the embodiment has the following beneficial effects:
(1) by adopting the hip joint prosthesis provided by the invention, the prosthesis body 20 is installed on the hip bone body 10 by utilizing the connecting piece 30, the first curved surface 21 of the prosthesis body 20 is abutted against the outer wall of the acetabulum 60, the whole acetabulum 60 is not required to be replaced by adopting an artificial hip joint replacement operation, and the damage to a patient is reduced;
(2) the fixing nail 31 is adopted, and the surface of the fixing nail 31 is provided with the first porous structure, so that the bone tissue can grow in conveniently, and further the long-term fixation of the hip joint prosthesis can be realized;
(3) the fixing nail 31 is provided with a first Kirschner wire hole 312, and a Kirschner wire is inserted into the first Kirschner wire hole 312, so that the thickness of the residual bone of the patient can be conveniently measured by using the Kirschner wire, and the length of the fixing nail 31 can be further determined;
(4) the Kirschner wire is inserted into the second Kirschner wire hole 23, so that the temporary fixation of the hip joint prosthesis can be realized;
(5) the inner liner 40 is arranged at the lower end of the prosthesis body 20, when the patient has seriously damaged the hip bone body, the second curved surface 41 of the inner liner 40 can be abutted with the outer wall of the acetabulum 60, so that the application range of the hip joint prosthesis can be further enlarged;
(6) by arranging the prosthesis body 20 as the first body 24 and the second body 25 and connecting the first body 24 and the second body 25 in a hinged manner, when the hip bone body of the patient is fractured or fractured, the first body 24 and the second body 25 can be used for tightly connecting the fractured or fractured parts of the patient, so that the healing of bone is accelerated.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A hip joint prosthesis, characterized in that it comprises:
the prosthesis body (20) is positioned on one side of the acetabulum (60), the lower end of the prosthesis body (20) is provided with a first curved surface (21) matched with the outer wall of the acetabulum (60), and the prosthesis body (20) can be abutted with the outer wall of the acetabulum (60) through the first curved surface (21);
the connecting piece (30) is arranged on the prosthesis body (20), and the prosthesis body (20) is connected with the hip bone body (10) through the connecting piece (30);
the prosthesis body (20) comprising a first body (24) and a second body (25),
the lower end of the first body (24) is hinged with the lower end of the second body (25), and the upper end of the first body (24) is connected with the upper end of the second body (25); or,
the upper end of the first body (24) is hinged with the upper end of the second body (25), and the lower end of the first body (24) is connected with the lower end of the second body (25).
2. The hip joint prosthesis according to claim 1, further comprising a liner (40), said liner (40) being provided at a lower end of said prosthesis body (20), said lower end of said liner (40) having a second curved surface (41) adapted to the outer wall of said acetabulum (60), said prosthesis body (20) being capable of abutting with the outer wall of said acetabulum (60) through said second curved surface (41).
3. The hip joint prosthesis according to claim 2,
a clamping groove (50) is formed in the upper end of the inner liner (40), and a boss (51) in clamping fit with the clamping groove (50) is arranged at the lower end of the prosthesis body (20); or,
the upper end of inside lining (40) is provided with boss (51), the lower extreme of false body (20) be provided with boss (51) joint complex draw-in groove (50).
4. The hip prosthesis according to claim 1, characterized in that said connecting element (30) comprises a screw, said prosthesis body (20) being provided with a connection hole (22), said screw being inserted through said connection hole (22) and being connected to said hip body (10).
5. The hip prosthesis according to claim 1, characterized in that the connecting element (30) further comprises a fixation peg (31), the fixation peg (31) being arranged on the side of the prosthesis body (20) facing the hip body (10), the surface of the fixation peg (31) being provided with a first porous structure.
6. The hip joint prosthesis according to claim 5, characterized in that said staple (31) has a first K-wire hole (312), said first K-wire hole (312) extending in the axial direction of said staple (31) and being provided through said staple (31).
7. The hip joint prosthesis according to claim 1, characterized in that said prosthesis body (20) has a second k-wire hole (23) provided therethrough.
8. The hip joint prosthesis according to claim 1,
the upper end of the first body (24) is provided with a first through hole (241), the upper end of the second body (25) is provided with a second through hole (251), the hip joint prosthesis further comprises a fastener (32), and the first body (24) and the second body (25) are connected through the fastener (32) arranged in the first through hole (241) and the second through hole (251) in a penetrating manner; and/or the presence of a gas in the gas,
one side of the first body (24) close to the second body (25) is provided with a first step (242), the second body (25) is provided with a second step corresponding to the first step (242), the first step (242) and the second step extend along the vertical direction of the prosthesis body (20), and the first step (242) and the second step are matched in an inserted manner.
9. The hip joint prosthesis according to any one of claims 1 to 7,
the prosthesis body (20) comprises a connecting section (26) and a supporting section (27) positioned below the connecting section (26), the first curved surface (21) is arranged at the lower end of the supporting section (27), and the size of the supporting section (27) is gradually increased in the direction from top to bottom; and/or the presence of a gas in the gas,
the side of the prosthesis body (20) connected with the hip bone body (10) is provided with a second porous structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302967.1A CN113730044B (en) | 2021-11-05 | 2021-11-05 | Hip joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302967.1A CN113730044B (en) | 2021-11-05 | 2021-11-05 | Hip joint prosthesis |
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| Publication Number | Publication Date |
|---|---|
| CN113730044A CN113730044A (en) | 2021-12-03 |
| CN113730044B true CN113730044B (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111302967.1A Active CN113730044B (en) | 2021-11-05 | 2021-11-05 | Hip joint prosthesis |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203483545U (en) * | 2013-10-12 | 2014-03-19 | 史振满 | Improved artificial full-hip supporting joint |
| US12127942B2 (en) * | 2017-05-31 | 2024-10-29 | Zimmer, Inc. | Customizable augments and methods for acetabular implants |
| CA3061359A1 (en) * | 2017-06-08 | 2018-12-13 | Skeletal Dynamics, Llc | Articulated fracture fixation plate assembly and method of use |
| CN108938149B (en) * | 2018-09-13 | 2023-07-28 | 北京爱康宜诚医疗器材有限公司 | Bone block is filled to pestle and mortar joint |
| CN111658237B (en) * | 2020-06-28 | 2023-07-21 | 中国人民解放军空军军医大学 | Titanium alloy semi-pelvic prosthesis capable of preserving part of acetabulum in 3D printing individuation mode |
| CN112107395A (en) * | 2020-10-15 | 2020-12-22 | 北京积水潭医院 | Biological acetabulum partial reconstruction prosthesis for treating hip joint dysplasia |
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