CN111281615A - Total acetabular prosthesis - Google Patents
Total acetabular prosthesis Download PDFInfo
- Publication number
- CN111281615A CN111281615A CN202010152190.4A CN202010152190A CN111281615A CN 111281615 A CN111281615 A CN 111281615A CN 202010152190 A CN202010152190 A CN 202010152190A CN 111281615 A CN111281615 A CN 111281615A
- Authority
- CN
- China
- Prior art keywords
- cup
- liner
- porous
- acetabular
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000000588 acetabulum Anatomy 0.000 claims abstract description 45
- 239000007787 solid Substances 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 40
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 19
- 230000009286 beneficial effect Effects 0.000 claims abstract description 4
- 210000001624 hip Anatomy 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 101150038956 cup-4 gene Proteins 0.000 description 19
- 238000009434 installation Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000002639 bone cement Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 210000004394 hip joint Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
-
- 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]
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (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 belongs to the field of medical instruments, and discloses a full acetabulum prosthesis which comprises an acetabulum outer cup, a first inner liner and a metal cup, wherein the acetabulum outer cup comprises a porous cup and a solid cup, the porous cup is of a porous structure which is beneficial to the bone ingrowth of the acetabulum part of a human body, the porous cup and the solid cup are in clamping combination, and a plurality of fixing holes which simultaneously penetrate through the porous cup and the solid cup are arranged on the porous cup or the solid cup. The total acetabular prosthesis is convenient and simple to install and has a good effect when being used for a long time.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a total hip joint prosthesis.
Background
The total hip prosthesis is used to replace the acetabulum part of hip joint for hip replacement operation. The existing full acetabulum prosthesis structure is formed by connecting and combining a metal outer cup, a metal inner liner, a polyethylene inner liner and a ball head, and has the advantages of convenient processing, short development period and the like.
Although the total acetabular cup prosthesis can replace the acetabular part of the hip joint and is really progressive, in actual use, the structure of the total acetabular cup prosthesis has a plurality of defects, so that the total acetabular cup prosthesis cannot achieve the optimal use effect in actual application, and the defects can be summarized as follows:
1) the effect is not ideal after long-term use
The materials of the bone at the acetabulum part of the human body and the acetabulum outer cup are different, the fusion of the bone of the human body and the acetabulum outer cup is slow, and the fixation effect is not ideal after long-term use;
2) difficulty in surgical installation
The existing full acetabulum prosthesis is formed by connecting a metal outer cup and a metal lining in a taper manner, the lining can be driven in place only by using very large force in the process of operation installation, the metal outer cup which is installed in place is easy to loosen due to overlarge stress, and finally, the revision operation has to be carried out.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the full-acetabulum prosthesis which is convenient to install and can be well fused with the acetabulum part of a human body in the long-term postoperative recovery.
The invention relates to a full acetabulum prosthesis, which comprises an acetabulum outer cup, a first inner liner and a metal cup, wherein the acetabulum outer cup comprises a porous cup and a solid cup, the porous cup is arranged into a porous structure which is beneficial to bone ingrowth at the acetabulum part of a human body, the porous cup and the solid cup are clamped and combined, and the porous cup or the solid cup is provided with a plurality of fixing holes which simultaneously penetrate through the porous cup and the solid cup.
Further, the porous cup is set to have a thickness of 2 to 5 mm and a porosity of 10 to 50%, and the solid cup is set to have a thickness of 2 to 5 mm.
Furthermore, one of the porous cup or the solid cup is provided with a bulge facing the other side, the other cup is provided with a groove matched with the bulge, the shape of the outer surface of the acetabulum outer cup is matched with the shape of the acetabulum part of the human body after the bulge is matched with the groove, and the shape of the inner surface of the acetabulum outer cup is matched with the shape of the first inner liner.
Further, the fixing hole is arranged on the projection; the fixing hole is a counter bore.
Furthermore, the acetabulum outer cup is connected with the first inner lining through bone cement, and a groove is arranged on the outer surface of the first inner lining.
Further, the inner surface of the acetabulum outer cup is also provided with grooves.
Further, the grooves include a plurality of first grooves in longitudinal directions and a plurality of second grooves in latitudinal directions; the depth of the groove is set to 1-3 mm.
Further, the outer edge of one side of the first liner is provided with an anti-disengaging structure for preventing the metal cup from disengaging from the first liner, the anti-disengaging structure is arranged into an arc-shaped section protruding from the edge of the first liner along the outer circumferential direction of the first liner, and the inner surface of the first liner extends to the inner surface of the arc-shaped section.
Further, the maximum angle of extension of the arc-shaped section is set to be 20 ° to 30 ° from the edge of the first liner; the outer surface of the arc-shaped section is provided with a conical surface, and the included angle between the conical surface and the edge of the first lining is 60-70 degrees.
Further, still include the snap ring of opening and form the inside second inside lining of metal cup, the snap ring of opening sets up at the metal cup inboard, and the snap ring lateral surface is formed with circumference arch, and the internal surface of metal cup is provided with the circumference groove with protruding complex of circumference to fixed metal cup and second inside lining.
Compared with the prior art, the full acetabulum prosthesis of the invention sets the outer acetabulum cup into the form of clamping the porous cup and the solid cup, so that in the recovery period after the operation, because the bone of the human body is similar to the porous structure of the porous cup, the porous cup positioned on the outer surface of the outer acetabulum cup adopts the porous structure, the porous cup can be easily fused with the bone of the human body, and the bone ingrowth performance is improved. The solid structure of the solid cup clamped with the porous cup can increase the rigidity of the acetabulum outer cup, reduce the risk of unstable fixation of the acetabulum outer cup and prolong the service life of the prosthesis.
Drawings
FIG. 1 is a schematic structural view of a total acetabular prosthesis according to an embodiment of the invention;
FIG. 2 is a cross-sectional view of the total hip prosthesis shown in FIG. 1;
FIG. 3 is a cross-sectional view of the acetabular outer cup of FIG. 1;
fig. 4 is a cross-sectional view of the first liner of fig. 1.
Detailed Description
For a better understanding of the objects, structure and function of the invention, a total hip socket prosthesis according to the invention will be described in more detail below with reference to the accompanying drawings.
Fig. 1 and 2 show the structure of a total acetabular prosthesis 100 according to the embodiment, which comprises an acetabular outer cup 3, a first liner 1 and a metal cup 4, wherein the acetabular outer cup 3 comprises a porous cup 31 and a solid cup 32, the porous cup 31 is arranged into a porous structure which is beneficial to bone ingrowth at the acetabular part of a human body, the porous cup 31 and the solid cup 32 are combined in a clamping manner, and a plurality of fixing holes 3211 which penetrate through the porous cup 31 or the solid cup 32 simultaneously are arranged on the porous cup 31 or the solid cup.
When the acetabular prosthesis 100 of the embodiment is used, the acetabular outer cup 3 is aligned and press-fitted to the position of the acetabulum of a human body, fixing components such as screws extend into the fixing holes 3211, the screws are tightened to fixedly connect the acetabular outer cup 3 with the position of the acetabulum of the human body, and then the first inner liner 1 and the metal cup 4 are sequentially installed on one side of the acetabular outer cup 3. The solid structure of the solid cup 32 clamped with the porous cup 31 can increase the rigidity of the acetabulum outer cup 3, reduce the risk of unstable fixation of the acetabulum outer cup 3 and prolong the service life of the prosthesis.
It should be noted that the porous cup 31 and the solid cup 32 can be detachably connected or can be integrally configured, when the porous cup 31 and the solid cup 32 are detachably connected, the acetabular outer cup 3 is simpler in manufacturing process, the solid cup 32 and the porous cup 31 can be installed after being manufactured respectively, and meanwhile, the acetabular outer cup can be properly matched according to the surgical requirements of the patient, for example, when the patient performs hip surgery for the first time, the bone of the patient is not damaged, and the specification of the acetabular outer cup 3 with the smaller specification and the size matched with the patient can be set; when the patient has been revision of the acetabular prosthesis, since a portion of the human bone may have been removed for the first hip surgery to install the acetabular prosthesis, a further removal of a portion of the human bone is required during the revision, and the patient is also required to select an acetabular cup 3 having a larger size. In adapting the porous cup 31 to the solid cup 32, a thicker porous cup 31 may also be selected to increase bone ingrowth performance, and a thicker solid cup 32 may also be selected to increase rigidity of the acetabular cup 3. When the porous cup 31 and the solid cup 32 are integrally formed, the connection strength between the porous cup and the solid cup is higher, and the porous cup is not easy to loosen in a long-term use process. Meanwhile, the outer acetabular cup 3 is manufactured by a metal 3D printing process, and the surface of the outer acetabular cup 3 is rough by the manufacturing process, so that the fusion of human sclerotin and the outer acetabular cup 3 is facilitated.
In this embodiment, the porous cup 31 may be set to have a thickness b of 2 to 5 mm and a porosity of 10% to 50%, and the solid cup 32 may be set to have a thickness a of 2 to 5 mm. The bone ingrowth properties and rigidity of the acetabular cup 3 are optimized by this arrangement.
In the embodiment shown in fig. 3, one of the porous cup 31 or the solid cup 32 may be provided with a protrusion 321 facing the other, and the other may be provided with a groove (not shown) matching with the protrusion 321, the outer surface of the acetabular cup 3 after matching of the protrusion 321 and the groove is shaped to match the shape of the acetabular region of the human body, and the inner surface of the acetabular cup 3 is shaped to match the shape of the first liner 1. Through the arrangement, the porous cup 31 and the solid cup 32 are accurately connected through the matching of the protrusion 321 and the groove, the outer surface of the acetabulum outer cup 3 is ensured to be consistent with the shape of the acetabulum of a human body, the inner surface of the acetabulum outer cup 3 is ensured to be consistent with the shape of the first lining 1, and the interference of the protruding protrusion 321 and the acetabulum part of the human body is avoided.
In the embodiment shown in fig. 3, the fixing hole 3211 may be provided on the projection 321; the securing hole 321 may be a counterbore. By providing the fixing hole 321 as a counterbore, after the threaded rod section of the connecting component such as a screw is screwed into the small diameter section of the counterbore, the nut part of the screw is hidden at the large diameter end of the counterbore, so that the screw is prevented from protruding from the inner surface of the acetabular cup 3 and interfering with the first liner.
According to the total acetabular prosthesis 100 of the embodiment, the acetabular outer cup 3 may be connected with the first liner 1 through bone cement, and the outer surface of the first liner 1 may be provided with a groove 11. The phenomenon that when the taper connection is adopted in the prior art, the taper connection needs a larger external force to press the taper connection and the connection, the damage to human bone is possibly caused, and the taper connection is easy to loosen is avoided. The installation is convenient, and the stability is good. In particular, in the revision acetabular prosthesis surgery, the adoption of press fit connection seriously affects the stability of the acetabular prosthesis and shortens the service life of the acetabular prosthesis. By providing the groove 11 on the outer surface of the first liner 1, cement spillage is avoided, while the cement in the groove 11 prevents relative rotation between the acetabular cup 3 and the first liner 1.
In a preferred embodiment, the inner surface of the acetabular outer cup 3 may also be provided with grooves 11.
With reference to fig. 1 and 4, the grooves 11 may include a plurality of longitudinal first grooves 111 and a plurality of latitudinal second grooves 112; the depth of the groove 11 is set to 1-3 mm. Through the arrangement, a groove 11 network in a plurality of directions is formed, the first inner liner 1 and the acetabulum outer cup 3 can be effectively prevented from rotating in the longitudinal direction and the latitudinal direction, and a good rotation prevention function is realized.
As shown in fig. 4, an outer edge of one side of the first liner 1 may be provided with a separation preventing structure 12 for preventing the metal cup 4 from being separated from the first liner 1, and the separation preventing structure 12 may be provided as an arc-shaped section protruding from an edge of the first liner 1 in an outer circumferential direction of the first liner 1, and an inner surface of the first liner 1 may extend to an inner surface of the arc-shaped section. When the metal cup 4 and the first liner 1 need to be connected together, the metal cup 4 only needs to be pressed in from the opening end of the first liner 1, and after the metal cup is pressed in, the anti-falling structure 12 has certain stopping and supporting effects on the metal cup 4, so that the metal cup 4 is prevented from being separated from the first liner 1.
As shown in figure 4, the maximum extension angle α of the arc-shaped section can be set to be 20-30 degrees from the edge of the first liner 1, the outer surface A of the arc-shaped section can be set to be a conical surface, the included angle β between the conical surface A and the edge of the first liner 1 is 60-70 degrees, the metal cup 4 can be conveniently and completely installed in the first liner 1 by reasonably selecting the parameters of the anti-falling structure 12, meanwhile, the metal cup 4 after entering the first liner 1 is not easy to fall off, and because soft tissue is arranged outside the prosthesis during later recovery, the influence on the soft tissue can be reduced by setting the outer surface A of the arc-shaped section to be a conical surface with smaller thickness, and the influence on the recovery caused by the arc-shaped surface applying larger extrusion force to the soft tissue is avoided.
Referring to fig. 1 and 2, the total acetabular prosthesis 100 may further include a snap ring 5 disposed inside the metal cup 4, and a second liner 2 formed inside the metal cup 4, wherein a circumferential protrusion may be formed on an outer side surface of the snap ring 5, and a circumferential groove (not shown) engaged with the circumferential protrusion (not shown) may be formed on an inner surface of the metal cup 4 to fix the metal cup 4 and the second liner 2. When needs installation split snap ring 5, only need exert external force to split snap ring 5's open end for the protruding joint of circumference of split snap ring 5 can in the circumference inslot of metal cup 4, make second inside lining 2 more stable with the relation of being connected of metal cup 4 through this setting, avoid second inside lining 2 to deviate from metal cup 4.
In another preferred embodiment, the inside surface of the snap ring 5 may also be provided with circumferential protrusions and the outside surface of the second liner 2 may also be provided with circumferential grooves cooperating with the circumferential protrusions inside the snap ring 5.
Compared with the prior art, the total acetabular prosthesis provided by the embodiment of the invention has the following advantages:
1) in the recovery period after the operation, since the bone of the human body is similar to the porous structure of the porous cup 31, the porous cup 31 positioned on the outer surface of the acetabulum outer cup 3 can be easily fused with the bone of the human body by adopting the porous structure, and the bone ingrowth performance is improved. The solid structure of the solid cup 32 clamped with the porous cup 31 can increase the rigidity of the acetabulum outer cup 3, reduce the risk of unstable fixation of the acetabulum outer cup 3 and prolong the service life of the prosthesis.
2) The porous cup 31 and the solid cup 32 can be detachably connected or can be integrally arranged, when the porous cup 31 and the solid cup 32 are detachably connected, the acetabular outer cup 3 is simpler in manufacturing process, the solid cup 32 and the porous cup 31 can be installed after being manufactured respectively, and meanwhile, the porous cup and the solid cup can be matched appropriately according to the operation requirements of patients; when the porous cup 31 and the solid cup 32 are integrally formed, the connection strength between the porous cup and the solid cup is higher, and the porous cup is not easy to loosen in a long-term use process.
3) The outer cup 3 of the acetabulum is manufactured by a metal 3D printing process, the surface of the outer cup of the acetabulum is rough, and the fusion of human sclerotin and the outer cup 3 of the acetabulum is facilitated.
4) The bone cement connection between the acetabulum outer cup 3 and the first inner liner 1 is arranged, so that the phenomenon that human bone is damaged and easily loosened when the two are pressed by large external force when taper connection is adopted in the prior art is avoided. The installation is convenient, and the stability is good. By providing the groove 11 on the outer surface of the first liner 1, cement spillage is avoided, while the cement in the groove 11 prevents relative rotation between the acetabular cup 3 and the first liner 1.
5) Through be provided with the anti-disengaging structure 12 that prevents that metal cup 4 from deviating from first inside lining 1 at one side of first inside lining 1's outward edge make anti-disengaging structure 12 have certain stopper and supporting effect to metal cup 4, avoid metal cup 4 to deviate from in first inside lining 1.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A total acetabulum prosthesis comprises an acetabulum outer cup, a first inner liner and a metal cup, and is characterized in that the acetabulum outer cup comprises a porous cup and a solid cup, the porous cup is arranged into a porous structure which is beneficial to bone ingrowth at an acetabulum part of a human body, the porous cup and the solid cup are combined in a clamping manner, and a plurality of fixing holes which simultaneously penetrate through the porous cup and the solid cup are formed in the porous cup or the solid cup.
2. The total hip socket prosthesis according to claim 1, wherein the porous cup is provided with a thickness of 2-5 mm and a porosity of 10-50%, and the solid cup is provided with a thickness of 2-5 mm.
3. The total acetabular prosthesis according to claim 1, wherein one of the porous cup or the solid cup is provided with a protrusion facing the other and the other is provided with a groove for engaging the protrusion, the outer surface of the acetabular cup following engagement of the protrusion and the groove has a shape adapted to the shape of the acetabular site of the human body and the inner surface of the acetabular cup has a shape adapted to the shape of the first liner.
4. The total hip socket prosthesis according to claim 3, wherein the fixation holes are provided on the protrusions; the fixing hole is a counter bore.
5. The total hip socket prosthesis according to claim 1, wherein the acetabular cup and the first liner are connected by cement, and grooves are provided on the outer surface of the first liner.
6. The total hip socket prosthesis according to claim 5, wherein the inner surface of the acetabular outer cup is also provided with grooves.
7. The total hip socket prosthesis according to claim 6, wherein the grooves comprise a plurality of first grooves in a longitudinal direction and a plurality of second grooves in a latitudinal direction; the depth of the groove is set to 1-3 mm.
8. The total hip socket prosthesis according to claim 1, wherein an outer edge of one side of the first liner is provided with an anti-slip structure that prevents the metal cup from slipping out of the first liner, the anti-slip structure being provided as an arc-shaped section that protrudes from an edge of the first liner in an outer circumferential direction of the first liner, an inner surface of the first liner extending onto an inner surface of the arc-shaped section.
9. The total hip socket prosthesis according to claim 8, wherein the maximum angle of extension of the arc-shaped segment is set to be 20 ° -30 ° from the edge of the first liner; the outer surface of the arc-shaped section is provided with a conical surface, and an included angle between the conical surface and the edge of the first lining is 60-70 degrees.
10. The total hip socket prosthesis according to any one of claims 1 to 9, further comprising a snap ring and a second liner formed inside the metal cup, the snap ring being disposed inside the metal cup, the snap ring being formed with a circumferential projection on an outer side thereof, the inner surface of the metal cup being provided with a circumferential groove cooperating with the circumferential projection to fix the metal cup and the second liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152190.4A CN111281615A (en) | 2020-03-06 | 2020-03-06 | Total acetabular prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152190.4A CN111281615A (en) | 2020-03-06 | 2020-03-06 | Total acetabular prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111281615A true CN111281615A (en) | 2020-06-16 |
Family
ID=71030197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010152190.4A Pending CN111281615A (en) | 2020-03-06 | 2020-03-06 | Total acetabular prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111281615A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904669A (en) * | 2020-08-05 | 2020-11-10 | 韩永台 | Artificial total hip joint's mixed fixed acetabular bone outer cup |
| CN112535554A (en) * | 2020-12-19 | 2021-03-23 | 经纬医疗器材制造（深圳）有限公司 | Three-dimensional metal outer cup and manufacturing method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566138A (en) * | 1983-03-08 | 1986-01-28 | Zimmer, Inc. | Prosthetic device with spacers |
| US4715860A (en) * | 1985-08-23 | 1987-12-29 | The Regents Of The University Of California | Porous acetabular hip resurfacing |
| CN103705317A (en) * | 2013-12-27 | 2014-04-09 | 北京爱康宜诚医疗器材股份有限公司 | Matched stack type acetabulum prosthesis |
| CN104546227A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Assembled double-acting acetabulum implant |
| CN105105876A (en) * | 2015-07-27 | 2015-12-02 | 深圳市义和平有限公司 | Improved artificial hip joint outer metal acetabular cup with porous film and preparation method thereof |
| CN106388979A (en) * | 2016-10-31 | 2017-02-15 | 优适医疗科技（苏州）有限公司 | Novel double-action hip joint prosthesis |
| CN107569303A (en) * | 2017-09-27 | 2018-01-12 | 北京市春立正达医疗器械股份有限公司 | Full acetabular component |
| CN108836577A (en) * | 2018-07-24 | 2018-11-20 | 北京安颂科技有限公司 | Acetabular component and artificial hip joint |
| CN109875728A (en) * | 2019-02-21 | 2019-06-14 | 吴谢 | A kind of double acting full hip acetabular component of band clasp |
| CN212308136U (en) * | 2020-03-06 | 2021-01-08 | 北京市春立正达医疗器械股份有限公司 | Total acetabular prosthesis |
-
2020
- 2020-03-06 CN CN202010152190.4A patent/CN111281615A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566138A (en) * | 1983-03-08 | 1986-01-28 | Zimmer, Inc. | Prosthetic device with spacers |
| US4715860A (en) * | 1985-08-23 | 1987-12-29 | The Regents Of The University Of California | Porous acetabular hip resurfacing |
| CN103705317A (en) * | 2013-12-27 | 2014-04-09 | 北京爱康宜诚医疗器材股份有限公司 | Matched stack type acetabulum prosthesis |
| CN104546227A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Assembled double-acting acetabulum implant |
| CN105105876A (en) * | 2015-07-27 | 2015-12-02 | 深圳市义和平有限公司 | Improved artificial hip joint outer metal acetabular cup with porous film and preparation method thereof |
| CN106388979A (en) * | 2016-10-31 | 2017-02-15 | 优适医疗科技（苏州）有限公司 | Novel double-action hip joint prosthesis |
| CN107569303A (en) * | 2017-09-27 | 2018-01-12 | 北京市春立正达医疗器械股份有限公司 | Full acetabular component |
| CN108836577A (en) * | 2018-07-24 | 2018-11-20 | 北京安颂科技有限公司 | Acetabular component and artificial hip joint |
| CN109875728A (en) * | 2019-02-21 | 2019-06-14 | 吴谢 | A kind of double acting full hip acetabular component of band clasp |
| CN212308136U (en) * | 2020-03-06 | 2021-01-08 | 北京市春立正达医疗器械股份有限公司 | Total acetabular prosthesis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904669A (en) * | 2020-08-05 | 2020-11-10 | 韩永台 | Artificial total hip joint's mixed fixed acetabular bone outer cup |
| CN112535554A (en) * | 2020-12-19 | 2021-03-23 | 经纬医疗器材制造（深圳）有限公司 | Three-dimensional metal outer cup and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220062000A1 (en) | Implant and anchor assembly | |
| AU2022271439B2 (en) | Improved glenoid anchor for a shoulder joint prosthesis | |
| AU755551B2 (en) | Femur fixture and set of femur fixtures | |
| RU2453293C2 (en) | Cotyloid cavity with sterile boundary surface | |
| KR101118897B1 (en) | Unitary acetabular cup prosthesis with extension for deficient acetabulum | |
| US9216090B2 (en) | Joint implant trial components | |
| US9192478B2 (en) | Revision hip implants and prosthesis systems | |
| US20140379089A1 (en) | Stemless shoulder implant | |
| US20170290668A1 (en) | Components for artificial joints | |
| KR101953291B1 (en) | Interlocking acetabular fixation screws and their combination with a reverse hip acetabular cup | |
| WO2016147163A1 (en) | Improved glenoid anchor for a shoulder joint prosthesis | |
| AU2014201451A1 (en) | Instruments for use in disassembling implants | |
| CN111281615A (en) | Total acetabular prosthesis | |
| CN212308136U (en) | Total acetabular prosthesis | |
| US10722371B2 (en) | Coupling device for connecting prosthesis components by a self-locking press fit | |
| CN111297521A (en) | Surface shoulder joint prosthesis | |
| CN221308506U (en) | Hip joint prosthesis | |
| CN218870592U (en) | Combined acetabulum screw and acetabulum prosthesis | |
| CN114081683A (en) | Cylindrical surface combined osseointegration method for artificial implant | |
| WO2020209770A1 (en) | Collar for preventing dislocation of hip joint prothesis | |
| CN118141574A (en) | Hollowed-out talus prosthesis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |