CN109481093B - Artificial acetabulum prosthesis and method of installing the same - Google Patents
Artificial acetabulum prosthesis and method of installing the same Download PDFInfo
- Publication number
- CN109481093B CN109481093B CN201811543502.3A CN201811543502A CN109481093B CN 109481093 B CN109481093 B CN 109481093B CN 201811543502 A CN201811543502 A CN 201811543502A CN 109481093 B CN109481093 B CN 109481093B
- Authority
- CN
- China
- Prior art keywords
- cup
- prosthesis
- lining
- liner
- extension
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 210000000588 acetabulum Anatomy 0.000 title abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 35
- 239000004570 mortar (masonry) Substances 0.000 claims description 13
- 210000004394 hip joint Anatomy 0.000 abstract description 6
- 206010023204 Joint dislocation Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013459 approach Methods 0.000 description 2
- 238000011882 arthroplasty Methods 0.000 description 2
- 210000001624 hip Anatomy 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/348—Additional features
- A61F2002/3483—Additional features having a convex shape, e.g. hemispherical heads
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 an artificial acetabulum prosthesis and an installation method thereof, which relate to the technical field of artificial prostheses and comprise the following steps: the cup, extension, liner and femoral head prosthesis; through set up the extension at the edge of acetabular cup, the setting of extension makes the overall shape of acetabular cup set up to many hemispheres, and set up the installation area on the surface of lining, the cross-sectional dimension of installation area is less than the opening size of extension, make the inside lining stretch into the acetabular cup in install, and can only install or deviate from when the position that the installation area is parallel and level mutually with the opening of extension, when other positions, the inside lining can't deviate from the acetabular cup, it deviate from the acetabular cup easily to have alleviateed the traditional artificial hip joint prosthesis in existence among the prior art, cause the technical problem of joint dislocation, realized reducing the inside lining and deviate from the technological effect of risk from the acetabular cup.
Description
Technical Field
The invention relates to the technical field of artificial prostheses, in particular to an artificial acetabulum prosthesis and an installation method thereof.
Background
After the artificial hip joint prosthesis is implanted into a human body through an artificial joint replacement operation, the normal physiological function of the human body can be recovered, and good news is brought to a patient. Artificial hip joints generally comprise: acetabular prostheses, femoral stem prostheses, femoral head prostheses, wherein the acetabular prostheses generally comprise an acetabular cup and a liner.
In modern artificial hip arthroplasty, dislocation is a complication that often occurs, and joint dislocation also becomes a difficult problem for patients and doctors. In artificial hip arthroplasty, dislocation may be manifested as a dislocation of the femoral head prosthesis from the liner, or a dislocation of the liner from the cup. Medical workers and engineers have employed various approaches to reduce the incidence of dislocation, such as: the use of a larger sized femoral head, the use of a high side liner, the use of a double acting cup, and the like.
However, the femoral head prosthesis with larger size only increases the moving range, does not affect the dislocation mechanism, only reduces the dislocation probability, and still has risks; while the high side liner reduces dislocation rate by sacrificing activity, the physiological activity of the final patient is limited, which is a second-to-last approach.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an artificial acetabulum prosthesis and an installation method thereof, so as to solve the technical problem that the inner liner in the traditional artificial hip joint prosthesis in the prior art is easy to be separated from the cup, and the dislocation of the joint is caused.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
The invention provides an artificial acetabulum prosthesis, comprising: the cup, extension, liner and femoral head prosthesis;
The cup is arranged in a hemispherical shape, the edge of the cup extends along the axial direction of the cup, and the extension part and the cup body are integrally formed;
The inner liner placing area is arranged in the mortar cup and the extension part, the outer surface of the inner liner is provided with the mounting belt, the section size of the mounting belt is smaller than or equal to the opening diameter size of the extension part, the inner liner stretches into the inner liner placing area along the axial direction of the mortar cup, and the mounting belt stretches into the inner liner placing area to be perpendicular to the axial direction of the mortar cup, so that the inner liner is connected with the mortar cup;
The inside lining is provided with a prosthesis placement area, the femoral head prosthesis stretches into the prosthesis placement area, and the inside lining is connected with the femoral head prosthesis so that the femoral head prosthesis rotates along the inner wall of the cup through the inside lining.
Further, the mounting band is disposed at a position perpendicular to the axial direction of the liner such that
When the liner extends into the liner placement area, the axis of the liner and the axis of the cup are positioned on the same straight line.
Further, the mounting band is disposed at a position having an included angle with the axial direction of the liner, so that an included angle is formed between the axial line of the liner and the axial line of the cup when the liner extends into the liner placement area.
Further, the mounting band is disposed on a same straight line as the axis of the liner, so that the axis of the liner is perpendicular to the axis of the cup when the liner extends into the liner placement area.
Further, the opening of the extension portion is provided with a rounded corner, so that the diameter of the opening of the extension portion is smaller than the inner diameter of the cup.
Further, the outer diameter of the liner is greater than the opening diameter dimension of the extension.
Further, the gap between the mounting belt and the inner wall of the cup is 0-0.3 mm.
Further, the distance between the installation belt and the center of the lining is smaller than the diameter of the outer circle of the lining.
Further, the artificial acetabulum prosthesis also comprises a femoral stem prosthesis;
The femoral stem prosthesis extends into the prosthesis placement area, and is connected with the inner wall of the lining, and can rotate along the inner wall of the lining;
the femoral stem prosthesis is internally provided with a connecting port, and the femoral stem prosthesis is connected with the femoral stem prosthesis through the connecting port so that the femoral stem prosthesis can rotate relative to the cup.
The invention provides an installation method of an artificial acetabulum prosthesis, which comprises the following steps:
a mounting belt is arranged on the axis direction of the lining;
The liner with the mounting band enters the cup along the axial direction of the cup, so that the mounting band extends into the cup and is perpendicular to the axial direction of the cup, and the liner is mounted in the cup;
Mounting a femoral head prosthesis to a femoral stem prosthesis;
A femoral stem prosthesis with a femoral head prosthesis is mounted within the liner such that the femoral head prosthesis can rotate along the inner wall of the cup.
By combining the technical scheme, the invention has the beneficial effects that:
The invention provides an artificial acetabulum prosthesis, comprising: the cup, extension, liner and femoral head prosthesis;
The cup is arranged in a hemispherical shape, the edge of the cup extends along the axial direction of the cup, and the extension part and the cup body are integrally formed;
The inner liner placing area is arranged in the mortar cup and the extension part, the outer surface of the inner liner is provided with the mounting belt, the section size of the mounting belt is smaller than or equal to the opening diameter size of the extension part, the inner liner stretches into the inner liner placing area along the axial direction of the mortar cup, and the mounting belt stretches into the inner liner placing area to be perpendicular to the axial direction of the mortar cup, so that the inner liner is connected with the mortar cup;
The inside lining is provided with a prosthesis placement area, the femoral head prosthesis stretches into the prosthesis placement area, and the inside lining is connected with the femoral head prosthesis so that the femoral head prosthesis rotates along the inner wall of the cup through the inside lining.
Through set up the extension at the edge of acetabular cup, the setting of extension makes the overall shape of acetabular cup set up to many hemispheres, and set up the installation area on the surface of lining, the cross-sectional dimension of installation area is less than the opening size of extension, make the inside lining stretch into the acetabular cup in install, and can only install or deviate from when the position that the installation area is parallel and level mutually with the opening of extension, when other positions, the inside lining can't deviate from the acetabular cup, it deviate from the acetabular cup easily to have alleviateed the traditional artificial hip joint prosthesis in existence among the prior art, cause the technical problem of joint dislocation, realized reducing the inside lining and deviate from the technological effect of risk from the acetabular cup.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of an artificial acetabular prosthesis according to an embodiment of the invention;
FIG. 2 is a schematic view of the structure of an acetabular cup in an artificial acetabular prosthesis according to an embodiment of the invention;
FIG. 3 is a schematic view of an artificial acetabular prosthesis according to an embodiment of the invention in a first installed position of the installation band;
FIG. 4 is a schematic view of an artificial acetabular prosthesis according to an embodiment of the invention in a second installed position of the installation band;
Fig. 5 is a schematic structural view of an artificial acetabular prosthesis according to an embodiment of the invention in a third installation position of the installation band.
Icon: 100-mortar cup; 110-an extension; 200-lining; 210-mounting a belt; 300-femoral head prosthesis; 310-femoral stem prosthesis.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 is a schematic view of the overall structure of an artificial acetabular prosthesis according to the present embodiment; FIG. 2 is a schematic view of the structure of a cup in the artificial acetabular prosthesis according to the present embodiment; FIG. 3 is a schematic view of the structure of the artificial acetabular prosthesis according to the present embodiment in a first installed position of the installation band; FIG. 4 is a schematic view of the structure of the artificial acetabular prosthesis according to the present embodiment in a second installation position of the installation band; fig. 5 is a schematic structural view of the artificial acetabular prosthesis according to the present embodiment in a third installation position of the installation band.
As shown in fig. 1 to 5, the artificial acetabulum prosthesis provided in this embodiment includes: the cup 100, extension 110, liner 200, and femoral head prosthesis 300; the cup 100 is arranged in a hemispherical shape, the edge of the cup 100 extends along the axial direction of the cup 100 to form an extension part 110, and the extension part 110 and the cup 100 body are integrally formed; the inner liner placing area is arranged in the cup 100 and the extension part 110, the outer surface of the inner liner 200 is provided with a mounting belt 210, the section size of the mounting belt 210 is smaller than or equal to the opening diameter size of the extension part 110, the inner liner 200 extends into the inner liner placing area along the axial direction of the cup 100, and the mounting belt 210 extends into the inner liner placing area to be perpendicular to the axial direction of the cup 100, so that the inner liner 200 is connected with the cup 100; the liner 200 is provided with a prosthesis placement area within which the femoral head prosthesis 300 extends, and the liner 200 is coupled to the femoral head prosthesis 300 such that the femoral head prosthesis 300 rotates along the inner wall of the cup 100 through the liner 200.
Specifically, the mounting band 210 is disposed on the outer surface of the liner 200, the cross-sectional dimension of the mounting band 210 is smaller than or equal to the opening diameter dimension of the extension 110, during the mounting process, the mounting band 210 is perpendicular to the axial direction of the cup 100, the liner 200 extends into the liner placement area along the axial direction of the cup 100, the liner 200 is mounted in the cup 100, the liner 200 can rotate along the inner wall of the cup 100 after the mounting is completed, and the liner 200 can be pulled out of the cup 100 only when the connecting position of the mounting band 210 on the liner 200 and the opening of the cup 100 is parallel, and the prosthesis placement area is disposed in the liner 200, so that the femoral head prosthesis 300 is mounted in the liner 200.
The artificial acetabulum prosthesis provided by the embodiment comprises: the cup 100, extension 110, liner 200, and femoral head prosthesis 300; the cup 100 is arranged in a hemispherical shape, the edge of the cup 100 extends along the axial direction of the cup 100 to form an extension part 110, and the extension part 110 and the cup 100 body are integrally formed; the inner liner placing area is arranged in the cup 100 and the extension part 110, the outer surface of the inner liner 200 is provided with a mounting belt 210, the section size of the mounting belt 210 is smaller than or equal to the opening diameter size of the extension part 110, the inner liner 200 extends into the inner liner placing area along the axial direction of the cup 100, and the mounting belt 210 extends into the inner liner placing area to be perpendicular to the axial direction of the cup 100, so that the inner liner 200 is connected with the cup 100; the liner 200 is provided with a prosthesis placement area within which the femoral head prosthesis 300 extends, and the liner 200 is coupled to the femoral head prosthesis 300 such that the femoral head prosthesis 300 rotates along the inner wall of the cup 100 through the liner 200. Through setting up extension 110 at the edge of acetabular cup 100, the setting of extension 110 makes the overall shape of acetabular cup 100 set up to many hemispheres, and set up installation area 210 on the surface of lining 200, the cross-sectional dimension of installation area 210 is less than the opening size of extension 110, make inside lining 200 stretch into acetabular cup 100 and install, and can only install or deviate from when installation area 210 and the open-ended of extension 110 looks parallel and level, in other positions, inside lining 200 can't deviate from acetabular cup 100, the inside lining 200 is deviate from acetabular cup 100 easily in the traditional artificial hip joint prosthesis that exists in the prior art has been alleviated, cause the technical problem of joint dislocation, the technological effect of reducing inside lining 200 and deviate from risk from acetabular cup 100 has been realized.
Further, the installation band 210 in the artificial acetabular prosthesis according to the present embodiment is disposed at a position perpendicular to the axial direction of the liner 200, so that the axial line of the liner 200 and the axial line of the cup 100 are on the same line when the liner 200 extends into the liner placement area.
Specifically, the mounting band 210 may be disposed at a position perpendicular to the axial direction of the liner 200, where the liner 200 extends into the liner placement area along the axial direction of the cup 100, and keeps the axis of the liner 200 and the axis of the cup 100 in the same line, and after the mounting is completed, the mounting band 210 is parallel to the line at the opening of the cup 100, and the axis of the liner 200 and the axis of the cup 100 are located on the same line, where the mounting and the removing positions are the mounting and the removing positions, and only when in the positions can be mounted and removed.
Further, the mounting band 210 is disposed at a position having an angle with respect to the axial direction of the liner 200, such that when the liner 200 extends into the liner placement area, an angle is formed between the axis of the liner 200 and the axis of the cup 100.
Specifically, the position of the mounting band 210 may be set at a position having an included angle with the axial direction of the liner 200, the liner 200 extends into the liner placement area along the axial direction of the cup 100, the mounting band 210 is parallel to the line at the opening of the cup 100 after the installation is completed, and an included angle exists between the axis of the liner 200 and the axis of the cup 100, and the position is an installation and release position, and only when the position is in the position, the liner 200 can be installed and released.
The overall device mounting method is that, when the mounting band 210 is positioned at a position perpendicular to the axial direction of the liner 200 or at a position having an angle with the axial direction of the liner 200: the femoral head prosthesis 300 is installed in the liner 200 first, and then the liner 200 with the femoral head prosthesis 300 is installed in the cup 100.
Further, the mounting band 210 is disposed in alignment with the axis of the liner 200 such that when the liner 200 is extended into the liner placement area, the axis of the liner 200 is perpendicular to the axis of the cup 100.
Specifically, the position of the mounting band 210 may be set in the axial direction of the liner 200, the liner 200 extends into the liner placement area along the axial direction of the cup 100, the mounting band 210 is parallel to the line at the opening of the cup 100 after the installation is completed, and the axis of the liner 200 is perpendicular to the axis of the cup 100, and the position is an installation and removal position, and only when the position is in the installation and removal position, the liner 200 can be installed and removed.
In addition, among the three installation positions of the installation band 210, when the installation band 210 is located at a position perpendicular to the axial direction of the liner 200, this installation-removal position is a commonly used use position for a patient, and the risk of removal is higher than the latter two position designs, but since removal is only possible at this position, the risk of removal has been reduced as compared to conventional products; when the mounting band 210 is positioned at an angle to the axial direction of the liner 200, this mounting and removal position is a position that is not commonly used by patients, and the risk of removal is extremely low; when the mounting band 210 is positioned in the axial direction of the liner 200, the mounting and dismounting position is a position which can not occur after the liner 200 is worn by a patient, the liner 200 can not be dismounted from the cup 100, and a medical staff can select the position of the mounting band 210 on the outer surface of the liner 200 according to specific requirements.
The artificial acetabular prosthesis provided by this embodiment changes the probability of liner 200 backing out of cup 100 by having mounting straps 210 positioned at different locations on the outer surface of liner 200.
Further, on the basis of the above embodiment, the opening of the extension portion 110 in the artificial acetabular prosthesis provided by the present embodiment is provided with a rounded corner, so that the opening diameter of the extension portion 110 is smaller than the inner diameter of the acetabular cup 100.
Specifically, a fillet is disposed at the opening of the extension portion 110, where the fillet is disposed to make the opening diameter of the extension portion 110 smaller than the inner diameter of the cup 100, so as to ensure that the liner 200 is not pulled out during normal movement.
Further, the clearance between the mounting band 210 and the inner wall of the cup 100 can range from 0 to 0.3mm.
Specifically, during installation, the gap between the liner 200 and the cup 100 should not be too large, which means that the liner 200 and the cup 100 will lose too large contact area, affecting frictional wear performance, and preferably the gap between the mounting band 210 and the inner wall of the cup 100 is in the range of 0-0.3 mm.
Further, the distance between the mounting band 210 and the center of the liner 200 is smaller than the diameter of the outer circumference of the liner 200.
Specifically, the distance between the mounting band 210 and the center of the liner 200 is less than the diameter of the outer circumference of the liner 200 so that the liner 200 can be removed from the cup 100 only when the mounting band 210 is parallel to the opening of the cup 100.
Further, the artificial acetabular prosthesis further includes a femoral stem prosthesis 310; the femoral stem prosthesis 310 extends into the prosthesis placement area, and the femoral stem prosthesis 310 is connected with the inner wall of the liner 200, and the femoral stem prosthesis 310 can rotate along the inner wall of the liner 200; a connection port is provided in the femoral stem prosthesis 310, and the femoral head prosthesis 300 is connected to the femoral stem prosthesis 310 through the connection port so that the femoral stem prosthesis 310 can rotate relative to the cup 100.
Specifically, the femoral head prosthesis 300 is coupled to the liner 200 via the femoral stem prosthesis 310 such that the femoral head prosthesis 300, the femoral stem prosthesis 310, and the liner 200 rotate simultaneously and together along the inner wall of the cup 100.
The artificial acetabulum prosthesis provided by the embodiment ensures that the liner 200 is not separated during normal movement by arranging the round corners at the opening of the extension part 110; the femoral head prosthesis 300 is mounted to the liner 200 by the placement of the femoral stem prosthesis 310.
The method for installing the artificial acetabulum prosthesis provided by the embodiment comprises the following steps:
A mounting band 210 is provided in the axial direction of the liner 200;
The liner 200 with the mounting band 210 is advanced into the cup 100 along the axis of the cup 100 such that the mounting band 210 extends into the cup 100 perpendicular to the axis of the cup 100 to mount the liner 200 within the cup 100;
mounting the femoral head prosthesis 300 to the femoral stem prosthesis 310;
The femoral stem prosthesis 310 with the femoral head prosthesis 300 is installed within the liner 200 such that the femoral head prosthesis 300 can rotate along the inner wall of the cup 100.
Specifically, the mounting band 210 is first opened in the axial direction of the liner 200, the liner 200 is mounted in the cup 100, the femoral head prosthesis 300 is simultaneously mounted in the femoral stem prosthesis 310, and finally the two assemblies are assembled.
According to the method for installing the artificial acetabular prosthesis, the liner 200 with the installation belt 210 arranged in the axial direction of the liner 200 is installed in the acetabular cup 100, and the femoral stem prosthesis 310 with the femoral head prosthesis 300 is installed in the liner 200, so that the liner 200 cannot be pulled out of the acetabular cup 100 when a patient uses the artificial acetabular prosthesis.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. An artificial acetabular prosthesis comprising: the cup, extension, liner and femoral head prosthesis;
the mortar cup is arranged in a hemispherical shape, the edge of the mortar cup extends along the axial direction of the mortar cup to form the extension part, and the extension part and the mortar cup body are integrally formed;
A lining placement area is arranged in the cup and the extension part, a mounting belt is arranged on the outer surface of the lining, the section size of the mounting belt is smaller than the opening diameter size of the extension part, the lining stretches into the lining placement area along the axial direction of the cup, and the mounting belt stretches into the lining placement area to be perpendicular to the axial direction of the cup, so that the lining is connected with the cup;
A prosthesis placement area is arranged in the lining, the femoral head prosthesis stretches into the prosthesis placement area, and the lining is connected with the femoral head prosthesis so that the femoral head prosthesis rotates along the inner wall of the cup through the lining;
the outer circle diameter of the lining is larger than the opening diameter size of the extension part;
the mounting belt is arranged at a position perpendicular to the axial direction of the lining, so that when the lining stretches into the lining placement area, the axial line of the lining and the axial line of the cup are positioned on the same straight line;
Or alternatively, the first and second heat exchangers may be,
The installation belt is arranged at a position with an included angle with the axial direction of the lining, so that when the lining stretches into the lining placement area, an included angle exists between the axial line of the lining and the axial line of the cup;
Or alternatively, the first and second heat exchangers may be,
The mounting band is arranged on the same straight line with the axis of the lining, so that when the lining stretches into the lining placement area, the axis of the lining is perpendicular to the axis of the cup.
2. The artificial acetabular prosthesis of claim 1, wherein the opening of the extension is provided with rounded corners such that the opening diameter of the extension is smaller than the inner diameter of the cup.
3. The artificial acetabular prosthesis of claim 2, wherein the clearance between the mounting band and the inner wall of the cup is in the range of 0-0.3 mm.
4. The artificial acetabular prosthesis of claim 3, wherein a distance between the mounting band and a center of the liner is less than a diameter of an outer circumference of the liner.
5. The prosthetic acetabular prosthesis of claim 1, further comprising a femoral stem prosthesis;
The femoral stem prosthesis extends into the prosthesis placement area and is connected with the inner wall of the lining, and the femoral stem prosthesis can rotate along the inner wall of the lining;
The femoral stem prosthesis is internally provided with a connecting port, and the femoral stem prosthesis is connected with the femoral stem prosthesis through the connecting port so that the femoral stem prosthesis can rotate relative to the cup.
6. A method of installing an artificial acetabular prosthesis according to any of claims 1-5, comprising the steps of:
a mounting belt is arranged on the axis direction of the lining;
The liner with the mounting band enters the cup along the axial direction of the cup, so that the mounting band extends into the cup and is perpendicular to the axial direction of the cup, and the liner is mounted in the cup;
Mounting a femoral head prosthesis to a femoral stem prosthesis;
A femoral stem prosthesis with a femoral head prosthesis is mounted within the liner such that the femoral head prosthesis can rotate along the inner wall of the cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543502.3A CN109481093B (en) | 2018-12-17 | 2018-12-17 | Artificial acetabulum prosthesis and method of installing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543502.3A CN109481093B (en) | 2018-12-17 | 2018-12-17 | Artificial acetabulum prosthesis and method of installing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109481093A CN109481093A (en) | 2019-03-19 |
| CN109481093B true CN109481093B (en) | 2024-04-19 |
Family
ID=65710517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543502.3A Active CN109481093B (en) | 2018-12-17 | 2018-12-17 | Artificial acetabulum prosthesis and method of installing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109481093B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192329A (en) * | 1991-03-07 | 1993-03-09 | Joint Medical Products Corporation | Oblong acetabular cup |
| FR2765473A1 (en) * | 1997-07-01 | 1999-01-08 | Christophe Cermolacce | Complete hip prosthesis anti=luxation system |
| EP1181909A1 (en) * | 2000-08-21 | 2002-02-27 | Bone & Joint Research S.A. | Elastic acetabular anchoring brace for hip acetabular joint insert made of rigid material |
| CN201208317Y (en) * | 2008-03-17 | 2009-03-18 | 常州好利医疗器械有限公司 | Double acting head structure in artificial hip joint system |
| CN202776638U (en) * | 2012-07-10 | 2013-03-13 | 北京爱康宜诚医疗器材股份有限公司 | Acetabulum lining |
| 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 |
| CN204798064U (en) * | 2015-02-05 | 2015-11-25 | 北京固圣生物科技有限公司 | Acetabular bone inside lining false body |
| CN205307154U (en) * | 2015-12-31 | 2016-06-15 | 成都普川生物医用材料股份有限公司 | Artificial hip joint |
| CN107638233A (en) * | 2017-10-27 | 2018-01-30 | 北京大学国际医院 | The anti-dislocation hip prosthesis and its manufacture method of a kind of 3D printing femoral head |
| CN207898564U (en) * | 2017-03-29 | 2018-09-25 | 上海博玛医疗科技有限公司 | A kind of artificial hip joint mortar cup |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2286131T3 (en) * | 2000-07-31 | 2007-12-01 | Massachusetts General Hospital | CONSTREATED MONOPOLAR ACETABULAR COMPONENT. |
| EP1520559A1 (en) * | 2003-09-30 | 2005-04-06 | Technische Universität München | Acetubular liner |
| US8771367B2 (en) * | 2011-09-30 | 2014-07-08 | DePuy Synthes Products, LLC | Self centering, anti-seizing acetabular liner |
| US20160250027A1 (en) * | 2015-02-27 | 2016-09-01 | The Curators Of The University Of Missouri | System and method for improved constrained prosthetic acetabulum |
-
2018
- 2018-12-17 CN CN201811543502.3A patent/CN109481093B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192329A (en) * | 1991-03-07 | 1993-03-09 | Joint Medical Products Corporation | Oblong acetabular cup |
| FR2765473A1 (en) * | 1997-07-01 | 1999-01-08 | Christophe Cermolacce | Complete hip prosthesis anti=luxation system |
| EP1181909A1 (en) * | 2000-08-21 | 2002-02-27 | Bone & Joint Research S.A. | Elastic acetabular anchoring brace for hip acetabular joint insert made of rigid material |
| CN201208317Y (en) * | 2008-03-17 | 2009-03-18 | 常州好利医疗器械有限公司 | Double acting head structure in artificial hip joint system |
| CN202776638U (en) * | 2012-07-10 | 2013-03-13 | 北京爱康宜诚医疗器材股份有限公司 | Acetabulum lining |
| 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 |
| CN204798064U (en) * | 2015-02-05 | 2015-11-25 | 北京固圣生物科技有限公司 | Acetabular bone inside lining false body |
| CN205307154U (en) * | 2015-12-31 | 2016-06-15 | 成都普川生物医用材料股份有限公司 | Artificial hip joint |
| CN207898564U (en) * | 2017-03-29 | 2018-09-25 | 上海博玛医疗科技有限公司 | A kind of artificial hip joint mortar cup |
| CN107638233A (en) * | 2017-10-27 | 2018-01-30 | 北京大学国际医院 | The anti-dislocation hip prosthesis and its manufacture method of a kind of 3D printing femoral head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109481093A (en) | 2019-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107361883B (en) | Cone locking knee-joint prosthesis | |
| AU670087B2 (en) | Cementless acetabular cup | |
| CN206934218U (en) | A kind of metal outer cup and acetabular bone system | |
| EP2074965B1 (en) | Aspherical hip bearing component | |
| CN108403262B (en) | Femoral stem prosthesis | |
| WO2016184293A1 (en) | Acetabular socket of composite artificial hip joint | |
| KR20130095191A (en) | Increasing the breaking load of ceramic cup inserts for hip joint prostheses by a defined back side collision of the cup insert and acetabular cup | |
| CN208259805U (en) | Cone locking knee-joint prosthesis | |
| CN109481093B (en) | Artificial acetabulum prosthesis and method of installing the same | |
| EP1952786B1 (en) | Aspherical hip bearing couple | |
| CN105078618A (en) | Acetabulum prosthesis | |
| WO2021103443A1 (en) | Acetabular cup | |
| CN209529402U (en) | Manual acetabulum prosthese | |
| CN204863560U (en) | Acetabular cup false body | |
| CN212037833U (en) | glenoid prosthesis with locking plate | |
| EP1520559A1 (en) | Acetubular liner | |
| CN210541941U (en) | High-flexibility bionic total-finger joint replacement part | |
| CN217744709U (en) | Local replacement system for femoral head | |
| CN219700209U (en) | Metal acetabulum outer cup | |
| CN213910716U (en) | Hip joint prosthesis | |
| CN218128873U (en) | Dislocation-preventing acetabulum liner | |
| WO2016169913A1 (en) | Cotyloid prosthesis for hipbone prostheses | |
| CN109009573B (en) | Adjustable acetabulum prosthesis | |
| CN113730043B (en) | Acetabular cup assembly | |
| CN204445968U (en) | Novel air pipe esophageal fistula plugging device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |