CN110680568A - Artificial tibia prosthesis and artificial knee joint - Google Patents
Artificial tibia prosthesis and artificial knee joint Download PDFInfo
- Publication number
- CN110680568A CN110680568A CN201911003008.2A CN201911003008A CN110680568A CN 110680568 A CN110680568 A CN 110680568A CN 201911003008 A CN201911003008 A CN 201911003008A CN 110680568 A CN110680568 A CN 110680568A
- Authority
- CN
- China
- Prior art keywords
- tibial
- tibia
- groove
- limiting
- artificial
- 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
- 210000002303 tibia Anatomy 0.000 title claims abstract description 91
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 210000000689 upper leg Anatomy 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral 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
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
-
- 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
- A61F2/30721—Accessories
- A61F2/30749—Fixation appliances for connecting prostheses to the body
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)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides an artificial tibia prosthesis and an artificial knee joint, which relate to the technical field of medical instruments and comprise: a tibial rest, a tibial insert and a connecting portion; the tibia liner is clamped on the tibia support, the tibia liner is limited to move in the direction far away from the tibia support, the connecting portion extends into the limiting groove formed between the tibia support and the tibia liner, resistance for preventing the tibia liner from sliding relative to the tibia support is formed, the tibia liner is further fixed on the tibia support, the technical problems that in the prior art, the locking structure between the tibia support and the tibia liner is complex, the connection between the tibia support and the tibia liner can be weakened through the thin wall and the thin groove, abrasion can be caused after long-time use, and the service life is poor are solved, the locking structure between the tibia support and the tibia liner is simplified, and the technical effect of prolonging the service life is effectively achieved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an artificial tibia prosthesis and an artificial knee joint.
Background
The knee joint endoprosthesis generally includes two main parts, namely a femoral prosthesis and a tibial prosthesis. Wherein, the femur prosthesis is connected with the distal femur by a femur mounting stem or a screw, and has an inner bone condyle and an outer bone condyle. The tibia prosthesis is divided into a tibia liner and a tibia support, the tibia support is fixed at the proximal end of the tibia, the tibia liner is located between the femur prosthesis and the tibia support and can translate or rotate on the tibia support, and the inner and outer bone condyle joint surfaces of the tibia liner are respectively matched with the inner and outer bone condyle joint surfaces of the femur prosthesis so as to simulate the normal natural knee joint movement process of a human body.
At present, the mainstream locking mechanism of the tibia support and the tibia liner in the market is irreconcilable and adopts a 6-degree-of-freedom full-constraint mode, namely, translation in three directions of X, Y and Z and rotation in three directions of X, Y and Z of the tibia liner are all constrained, such as peripheral surrounding locking, safety island locking, buckle locking and the like.
However, these locking mechanisms all have a significant problem, the locking structure is complicated, and features such as thin walls and slots appear, which weaken the structural load-bearing capacity of the tibial bracket and the tibial pad, cause wear after long-term use, and have a short service life.
Disclosure of Invention
The invention aims to provide an artificial tibial prosthesis and an artificial knee joint, which solve the technical problems that the locking structure between a tibial support and a tibial gasket is complex, the connection between the tibial support and the tibial gasket is weakened due to a thin wall and a thin groove, the tibial support and the tibial gasket are worn after long-term use, and the service life is poor in the prior art.
In a first aspect, the present invention provides an artificial tibial prosthesis comprising: a tibial rest, a tibial insert and a connecting portion;
the tibia liner is clamped on the tibia support;
a limiting groove is formed between the tibial support and the tibial gasket in an enclosing manner, the connecting part extends into the limiting groove, and the connecting part is used for forming resistance for preventing the tibial gasket from sliding relative to the surface of the tibial support.
In an alternative embodiment, the artificial tibial prosthesis further comprises a stop assembly;
the limiting assembly is abutted to the connecting portion and used for forming resistance for preventing the connecting portion from moving relative to the limiting groove.
In an optional embodiment, a fixing groove for installing the limiting component is arranged on the position of the tibial support, which is located on the limiting groove; or the position of the tibial gasket in the limiting groove is provided with a fixing groove for mounting the limiting component.
In an alternative embodiment, the limiting component comprises a limiting part and an elastic part connected with the limiting part;
when the elastic piece is in a natural state, the limiting part protrudes out of the fixing groove;
when the elastic piece is in a compressed state, the limiting part is positioned in the fixing groove.
In an optional embodiment, a limiting groove is arranged on the connecting part;
the limiting part has a pressing-in state and a stretching-out state;
when the limiting part is in a press-in state, the outer surface of the connecting part applies pressure to the limiting part;
when the limiting part is in a stretching state, the limiting part stretches into the limiting groove.
In an alternative embodiment, the shape of the limiting part is provided as a sphere.
In an alternative embodiment, the tibial rest is provided with a positioning slot;
one side of the tibia gasket, which is close to the tibia support, is provided with a positioning bulge matched with the positioning groove, the positioning bulge extends into the positioning groove, and the limiting groove is surrounded between the positioning groove and the positioning bulge.
In an alternative embodiment, the tibial insert is provided with a detent;
one side of the tibia support close to the tibia gasket is provided with a positioning bulge matched with the positioning groove, the positioning bulge extends into the positioning groove, and the limiting groove is arranged between the positioning groove and the positioning bulge in an enclosing manner.
In an alternative embodiment, the connection is made of a thermally expandable material.
In a second aspect, the invention provides an artificial knee joint comprising the artificial tibial prosthesis.
The invention provides an artificial tibial prosthesis, comprising: a tibial rest, a tibial insert and a connecting portion; the tibia liner is clamped on the tibia support; a limit groove is formed between the tibia support and the tibia pad in an enclosing mode, the connecting portion extends into the limit groove, and the connecting portion is used for forming resistance which prevents the tibia pad from sliding relative to the surface of the tibia support. The tibia liner is clamped on the tibia support, the tibia liner is limited to move in the direction far away from the tibia support, the connecting portion extends into the limiting groove formed between the tibia support and the tibia liner, resistance for preventing the tibia liner from sliding relative to the tibia support is formed, the tibia liner is further fixed on the tibia support, the technical problems that in the prior art, the locking structure between the tibia support and the tibia liner is complex, the connection between the tibia support and the tibia liner can be weakened through the thin wall and the thin groove, abrasion can be caused after long-time use, and the service life is poor are solved, the locking structure between the tibia support and the tibia liner is simplified, and the technical effect of prolonging the service life is effectively achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exploded view of an artificial tibial prosthesis according to an embodiment of the present invention;
fig. 2 is a schematic overall structure diagram of an artificial tibial prosthesis provided by an embodiment of the invention;
FIG. 3 is an exploded view of the artificial tibial prosthesis with a stop assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a tibial tray in an artificial tibial prosthesis according to an embodiment of the present invention;
FIG. 5 is a schematic view of a connecting portion of an artificial tibial prosthesis according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a tibial insert in an artificial tibial prosthesis according to an embodiment of the present invention.
Icon: 100-a tibial rest; 110-a positioning groove; 120-a limiting groove; 200-a tibial insert; 210-a positioning projection; 300-a connecting portion; 310-a limit groove; 400-a spacing assembly; 410-a limiting part; 420-an elastic member; 500-fixed groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
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, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed 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 are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
As shown in fig. 1-2, in a first aspect, the present embodiment provides an artificial tibial prosthesis, including: a tibial tray 100, a tibial insert 200, and a connecting portion 300; the tibia pad 200 is clamped on the tibia support 100; a limiting groove 120 is defined between the tibial tray 100 and the tibial gasket 200, the connecting portion 300 extends into the limiting groove 120, and the connecting portion 300 is used for forming resistance to prevent the tibial gasket 200 from sliding relative to the surface of the tibial tray 100.
Specifically, in the operation process, after the medical staff fixes the tibial tray 100 in the body of the patient, the tibial gasket 200 is moved, and the tibial gasket 200 is clamped on the tibial tray 100, so that the tibial gasket 200 cannot move in the direction away from the tibial tray 100, the moving direction of the tibial gasket 200 is limited, and the tibial gasket 200 is attached to the tibial tray 100.
After the tibial gasket 200 is clamped on the tibial tray 100, although the tibial gasket 200 cannot move away from the tibial tray 100, the tibial gasket 200 can move along the surface of the tibial tray 100, and there is still a possibility that the tibial gasket 200 slides out of the tibial tray 100, after the tibial gasket 200 is clamped with the tibial tray 100, a limiting groove 120 is formed between the tibial gasket 200 and the tibial tray 100, and the connecting part 300 is inserted into the limiting groove 120, so that the connecting part 300 is respectively clamped with the tibial tray 100 and the tibial gasket 200, and the sliding of the tibial gasket 200 on the tibial tray 100 is limited.
In addition, the joint between the tibial gasket 200 and the tibial bracket 100 is locked by mortise and tenon joint, the connecting part 300 is specifically configured as a tenon strip, and after the tibial gasket 200 and the tibial bracket 100 are assembled, the connecting part 300 extends into the limiting groove 120 to complete the connection and fixation of the tibial gasket 200 and the tibial bracket 100.
The artificial tibial prosthesis provided by the embodiment comprises: a tibial tray 100, a tibial insert 200, and a connecting portion 300; the tibia pad 200 is clamped on the tibia support 100; a limiting groove 120 is defined between the tibial tray 100 and the tibial gasket 200, the connecting portion 300 extends into the limiting groove 120, and the connecting portion 300 is used for forming resistance to prevent the tibial gasket 200 from sliding relative to the surface of the tibial tray 100. The tibia liner 200 is clamped on the tibia support 100, the tibia liner 200 is limited to move towards the direction far away from the tibia support 100, meanwhile, the connecting portion 300 extends into the limiting groove 120 formed between the tibia support 100 and the tibia liner 200 in an enclosing mode, resistance for preventing the tibia liner 200 from sliding relative to the tibia support 100 is formed, and then the tibia liner 200 is fixed on the tibia support 100, so that the technical problems that in the prior art, the locking structure between the tibia support 100 and the tibia liner 200 is complex, the connection between the tibia support 100 and the tibia liner 200 is weakened through thin walls and thin grooves, abrasion is caused after long-time use, and the service life is poor are solved, the locking structure between the tibia support 100 and the tibia liner 200 is simplified, and the technical effect of prolonging the service life is effectively achieved.
On the basis of the above embodiments, as shown in fig. 3 to 4, in an alternative embodiment, the artificial tibial prosthesis provided by the present embodiment further includes a limiting component 400; the limiting component 400 is abutted against the connecting part 300, and the limiting component 400 is used for forming resistance for preventing the connecting part 300 from moving relative to the limiting groove 120.
Specifically, in connecting portion 300 stretched into spacing groove 120, after going into the position, spacing subassembly 400 and connecting portion 300 butt, the slip of spacing subassembly 400 restriction connecting portion 300 avoided connecting portion 300 to follow the roll-off in spacing groove 120, improved connection stability.
In an alternative embodiment, the tibial tray 100 is provided with a fixing groove 500 for installing the limiting assembly 400 at the position of the limiting groove 120; alternatively, the tibial insert 200 may be provided with a retaining groove 500 for receiving the stop assembly 400 at the location of the stop groove 120.
Specifically, the installation of the spacing subassembly 400 of being convenient for sets up fixed slot 500, fixed slot 500 can set up on shin bone support 100, also can set up on tibial gasket 200, spacing subassembly 400 is installed in fixed slot 500, and spacing subassembly 400 telescopic installs at fixed slot 500, the in-process that stretches into spacing groove 120 at connecting portion 300, connecting portion 300 extrudes spacing subassembly 400, make spacing subassembly 400 stretch into fixed slot 500, after connecting portion 300 goes into the position, spacing subassembly 400 protrusion fixed slot 500, make spacing subassembly 400 and connecting portion 300 butt, block connecting portion 300, avoid connecting portion 300 along the roll-off of spacing groove 120.
In an alternative embodiment, the position limiting assembly 400 includes a position limiting portion 410 and an elastic member 420 connected to the position limiting portion 410; when the elastic member 420 is in a natural state, the limiting portion 410 protrudes out of the fixing groove 500; when the elastic member 420 is in a compressed state, the stopper 410 is positioned in the fixing groove 500.
Specifically, elastic component 420 sets up in fixed slot 500, and elastic component 420 is connected fixedly with the bottom of fixed slot 500, elastic component 420 specifically sets up to compression spring, the one end that elastic component 420 kept away from the fixed slot 500 bottom is connected with spacing portion 410, stretch into the in-process in spacing groove 120 at connecting portion 300, connecting portion 300 extrudes spacing portion 410, spacing portion 410 stretches into in the fixed slot 500, connecting portion 300 goes into the position after, spacing portion 410 protrudes fixed slot 500, stretch into in the connecting portion 300, restriction connecting portion 300's removal.
In addition, the limiting assembly 400 can also be arranged as a bead jackscrew, and a steel ball at the top of the bead jackscrew can extend into the connecting part 300 to limit the movement of the connecting part 300.
As shown in fig. 5, in an alternative embodiment, the connection part 300 is provided with a limit groove 310; the stopper 410 has a pressed-in state and a projected-out state; when the stopper 410 is pressed in, the outer surface of the connecting part 300 presses the stopper 410; when the position-limiting portion 410 is in the extended state, the position-limiting portion 410 extends into the position-limiting groove 310.
Specifically, a limiting groove 310 is formed in one side, close to the limiting portion 410, of the connecting portion 300, after the connecting portion 300 is located, the limiting portion 410 protrudes out of the fixing groove 500, the limiting portion 410 extends into the limiting groove 310 to limit movement of the connecting portion 300, and therefore assembly and fixation of the tibial gasket 200 and the tibial tray 100 are completed.
In an alternative embodiment, the spacing portion 410 is shaped as a sphere.
Specifically, spacing portion 410 specifically sets up to the steel ball, and the steel ball is connected with the compression spring in the fixed slot 500, and spacing portion 410's shape sets up to the spheroid, stretches into the in-process of spacing groove 120 at connecting portion 300, and the spacing portion 410 of spheroid shape effectively reduces the frictional force between spacing portion 410 and the connecting portion 300, reduces the resistance that receives when connecting portion 300 removes, guarantees that connecting portion 300 stretches into in the spacing groove 120 smoothly.
In the artificial tibial prosthesis provided by the embodiment, the connecting portion 300 is clamped in the limiting groove 120 between the tibial tray 100 and the tibial gasket 200 through the arrangement of the limiting component 400, so as to limit the movement of the connecting portion 300, and thus, the connection and fixation of the tibial gasket 200 and the tibial tray 100 is completed.
As shown in fig. 6, on the basis of the above embodiment, in an alternative embodiment, the artificial tibial prosthesis provided in this embodiment has a positioning groove 110 on the tibial lug 100; one side of the tibial gasket 200 close to the tibial tray 100 is provided with a positioning protrusion 210 matching with the positioning groove 110, the positioning protrusion 210 extends into the positioning groove 110, and a limiting groove 120 is enclosed between the positioning groove 110 and the positioning protrusion 210.
Specifically, the positioning groove 110 is formed in the tibial support 100, the positioning protrusion 210 is formed in the tibial gasket 200, the positioning protrusion 210 extends into the positioning groove 110, the tibial gasket 200 is further connected to the tibial support 100 in a clamping manner, and when the positioning protrusion 210 extends into the positioning groove 110, the positioning groove 120 is formed in the positioning groove 110, so that the connecting portion 300 extends into the positioning groove 120.
It should be noted that the shapes of the positioning protrusion 210 and the positioning groove 110 need to be set correspondingly, so as to ensure that the positioning protrusion 210 can be clamped in the positioning groove 110.
In addition, the positioning groove 110 is designed to be non-through, so that the positioning protrusion 210 can be limited in position after completely extending into the positioning groove 110, the limiting groove 120 can be formed more easily, and the limiting groove 120 can be formed by enclosing the positioning protrusion 210 after completely extending into the positioning groove 110.
In an alternative embodiment, the tibial insert 200 is provided with a positioning slot 110; a positioning protrusion 210 matched with the positioning groove 110 is arranged on one side of the tibial support 100 close to the tibial gasket 200, the positioning protrusion 210 extends into the positioning groove 110, and a limiting groove 120 is enclosed between the positioning groove 110 and the positioning protrusion 210.
Specifically, the positioning groove 110 may be provided on the tibial gasket 200, and the positioning protrusion 210 may be provided on the tibial tray 100.
In an alternative embodiment, the connection 300 is made of a thermally expansive material.
Specifically, connecting portion 300 adopts the easily expanded material that is heated, in the operation process, fix shin bone rest 100 in the human body earlier, back with shin bone liner 200 joint on shin bone rest 100, stretch into connecting portion 300 at last in the spacing groove 120 between shin bone rest 100 and the shin bone liner 200, because human internal temperature is higher than the operating room temperature, stretch into spacing groove 120 at connecting portion 300, connecting portion 300 is the thermal expansion, connecting portion 300 interference fit in spacing groove 120, effectively prevent connecting portion 300 roll-off from spacing groove 120, improve connecting portion 300 and spacing groove 120's firm in connection.
The material of the connecting portion 300 is specifically a polymer material, and the polymer material is an environment-friendly material suitable for a human body.
The artificial tibial prosthesis provided by the embodiment is convenient for clamping the tibial gasket 200 on the tibial bracket 100 through the arrangement of the positioning groove 110 and the positioning protrusion 210; through adopting the material that is heated and easily expands with connecting portion 300, make connecting portion 300 and spacing groove 120 interference fit, improve the firmness of connecting.
In a second aspect, the present embodiment provides an artificial knee joint including an artificial tibial prosthesis.
Since the technical effect of the artificial knee joint provided by the present embodiment is the same as that of the artificial tibial prosthesis, the detailed description thereof is omitted.
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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An artificial tibial prosthesis, comprising: a tibial tray (100), a tibial insert (200), and a connecting portion (300);
the tibia liner (200) is clamped on the tibia support (100);
a limiting groove (120) is defined between the tibial support (100) and the tibial gasket (200), the connecting part (300) extends into the limiting groove (120), and the connecting part (300) is used for forming resistance for preventing the tibial gasket (200) from sliding relative to the surface of the tibial support (100).
2. The artificial tibial prosthesis of claim 1, further comprising a stop assembly (400);
the limiting component (400) is abutted against the connecting part (300), and the limiting component (400) is used for forming resistance for preventing the connecting part (300) from moving relative to the limiting groove (120).
3. The artificial tibial prosthesis of claim 2, wherein said tibial tray (100) is provided with a fixing groove (500) for mounting said stopper assembly (400) at the position of said stopper groove (120);
or the like, or, alternatively,
the position of the tibia gasket (200) on the limiting groove (120) is provided with a fixing groove (500) for installing the limiting component (400).
4. The artificial tibial prosthesis of claim 3, wherein said stop assembly (400) comprises a stop portion (410) and a resilient member (420) connected to said stop portion (410);
when the elastic piece (420) is in a natural state, the limiting part (410) protrudes out of the fixing groove (500);
when the elastic piece (420) is in a compressed state, the limiting part (410) is positioned in the fixing groove (500).
5. The artificial tibial prosthesis of claim 4, wherein said connection portion (300) is provided with a retaining groove (310);
the limiting part (410) has a pressed-in state and a protruded state;
when the limiting part (410) is in a press-in state, the outer surface of the connecting part (300) presses the limiting part (410);
when the limiting part (410) is in a protruding state, the limiting part (410) extends into the limiting groove (310).
6. The artificial tibial prosthesis of claim 4, wherein said stop portion (410) is shaped as a sphere.
7. The artificial tibial prosthesis of claim 1, wherein said tibial tray (100) is provided with a positioning slot (110);
one side, close to the tibia support (100), of the tibia gasket (200) is provided with a positioning protrusion (210) matched with the positioning groove (110), the positioning protrusion (210) extends into the positioning groove (110), and the limiting groove (120) is surrounded between the positioning groove (110) and the positioning protrusion (210).
8. The artificial tibial prosthesis of claim 1, wherein said tibial insert (200) is provided with a positioning slot (110);
one side, close to the tibial gasket (200), of the tibial support (100) is provided with a positioning protrusion (210) matched with the positioning groove (110), the positioning protrusion (210) extends into the positioning groove (110), and the limiting groove (120) is surrounded between the positioning groove (110) and the positioning protrusion (210).
9. The artificial tibial prosthesis of claim 1, wherein said connecting portion (300) is of a thermally expandable material.
10. An artificial knee joint comprising an artificial tibial prosthesis according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003008.2A CN110680568A (en) | 2019-10-21 | 2019-10-21 | Artificial tibia prosthesis and artificial knee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911003008.2A CN110680568A (en) | 2019-10-21 | 2019-10-21 | Artificial tibia prosthesis and artificial knee joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110680568A true CN110680568A (en) | 2020-01-14 |
Family
ID=69113466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911003008.2A Pending CN110680568A (en) | 2019-10-21 | 2019-10-21 | Artificial tibia prosthesis and artificial knee joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110680568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712042A (en) * | 2022-06-10 | 2022-07-08 | 北京爱康宜诚医疗器材有限公司 | Lock clip extractor |
| CN114732571A (en) * | 2022-06-10 | 2022-07-12 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis and locking clamp thereof |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214175A (en) * | 2008-01-17 | 2008-07-09 | 四川大学 | Knee joint endoprosthesis |
| CN101450014A (en) * | 2007-12-07 | 2009-06-10 | 王岩 | Artificial knee joint replacement prosthesis capable of reserving or rebuilding anterior cruciate ligament |
| WO2010096960A1 (en) * | 2009-02-25 | 2010-09-02 | 北京纳通投资有限公司 | Artificial knee replacement prostheses with anterior cruciate ligament reserved or reconstructed |
| CN201790920U (en) * | 2010-09-25 | 2011-04-13 | 常州好利医疗器械有限公司 | Locking structure between liner and tibia support flat plate |
| WO2013071872A1 (en) * | 2011-11-18 | 2013-05-23 | 北京纳通科技集团有限公司 | Knee joint prosthesis |
| CN203686221U (en) * | 2014-01-09 | 2014-07-02 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN103930071A (en) * | 2011-09-29 | 2014-07-16 | 克里斯蒂安·鲁道夫·乌斯特休詹 | A tibial component |
| CN203852452U (en) * | 2014-05-23 | 2014-10-01 | 北京威高亚华人工关节开发有限公司 | Stable pad type arthroplasty knee joint |
| CN203988500U (en) * | 2014-07-04 | 2014-12-10 | 北京纳通科技集团有限公司 | A kind of fixed platform knee-joint prosthesis |
| CN104840279A (en) * | 2015-05-26 | 2015-08-19 | 北京爱康宜诚医疗器材股份有限公司 | Knee joint prosthesis |
| CN105030383A (en) * | 2015-05-08 | 2015-11-11 | 江苏奥康尼医疗科技发展有限公司 | Combined type full-organic-polymer-material artificial unicondylar knee joint |
| CN205885583U (en) * | 2016-03-03 | 2017-01-18 | 华中科技大学同济医学院附属同济医院 | Artificial total knee joint prosthesis |
| CN107280821A (en) * | 2017-08-01 | 2017-10-24 | 北京安颂科技有限公司 | Rotation platform knee-joint prosthesis |
| CN107361883A (en) * | 2017-08-01 | 2017-11-21 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN107898536A (en) * | 2017-11-09 | 2018-04-13 | 北京市春立正达医疗器械股份有限公司 | Knee-joint prosthesis |
| CN109009575A (en) * | 2018-07-12 | 2018-12-18 | 宽岳医疗器材（苏州）有限公司 | Artificial knee joint prosthesis |
| CN109009578A (en) * | 2018-08-21 | 2018-12-18 | 北京市春立正达医疗器械股份有限公司 | Knee hinge joint prosthese |
| CN208259805U (en) * | 2017-08-01 | 2018-12-21 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN208259804U (en) * | 2017-08-01 | 2018-12-21 | 北京安颂科技有限公司 | Rotating platform knee-joint prosthesis |
| WO2019007290A1 (en) * | 2017-07-03 | 2019-01-10 | 朱红文 | Artificial knee joint |
| CN208808754U (en) * | 2017-11-02 | 2019-05-03 | 北京安颂科技有限公司 | Shin bone pads prosthese and tibial prosthesis and artificial knee joint |
| CN211243915U (en) * | 2019-10-21 | 2020-08-14 | 北京安颂科技有限公司 | Artificial tibia prosthesis and artificial knee joint |
-
2019
- 2019-10-21 CN CN201911003008.2A patent/CN110680568A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450014A (en) * | 2007-12-07 | 2009-06-10 | 王岩 | Artificial knee joint replacement prosthesis capable of reserving or rebuilding anterior cruciate ligament |
| CN101214175A (en) * | 2008-01-17 | 2008-07-09 | 四川大学 | Knee joint endoprosthesis |
| WO2010096960A1 (en) * | 2009-02-25 | 2010-09-02 | 北京纳通投资有限公司 | Artificial knee replacement prostheses with anterior cruciate ligament reserved or reconstructed |
| CN201790920U (en) * | 2010-09-25 | 2011-04-13 | 常州好利医疗器械有限公司 | Locking structure between liner and tibia support flat plate |
| CN103930071A (en) * | 2011-09-29 | 2014-07-16 | 克里斯蒂安·鲁道夫·乌斯特休詹 | A tibial component |
| WO2013071872A1 (en) * | 2011-11-18 | 2013-05-23 | 北京纳通科技集团有限公司 | Knee joint prosthesis |
| CN203686221U (en) * | 2014-01-09 | 2014-07-02 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN203852452U (en) * | 2014-05-23 | 2014-10-01 | 北京威高亚华人工关节开发有限公司 | Stable pad type arthroplasty knee joint |
| CN203988500U (en) * | 2014-07-04 | 2014-12-10 | 北京纳通科技集团有限公司 | A kind of fixed platform knee-joint prosthesis |
| CN105030383A (en) * | 2015-05-08 | 2015-11-11 | 江苏奥康尼医疗科技发展有限公司 | Combined type full-organic-polymer-material artificial unicondylar knee joint |
| CN104840279A (en) * | 2015-05-26 | 2015-08-19 | 北京爱康宜诚医疗器材股份有限公司 | Knee joint prosthesis |
| CN205885583U (en) * | 2016-03-03 | 2017-01-18 | 华中科技大学同济医学院附属同济医院 | Artificial total knee joint prosthesis |
| WO2019007290A1 (en) * | 2017-07-03 | 2019-01-10 | 朱红文 | Artificial knee joint |
| CN107280821A (en) * | 2017-08-01 | 2017-10-24 | 北京安颂科技有限公司 | Rotation platform knee-joint prosthesis |
| CN107361883A (en) * | 2017-08-01 | 2017-11-21 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN208259805U (en) * | 2017-08-01 | 2018-12-21 | 北京安颂科技有限公司 | Cone locking knee-joint prosthesis |
| CN208259804U (en) * | 2017-08-01 | 2018-12-21 | 北京安颂科技有限公司 | Rotating platform knee-joint prosthesis |
| CN208808754U (en) * | 2017-11-02 | 2019-05-03 | 北京安颂科技有限公司 | Shin bone pads prosthese and tibial prosthesis and artificial knee joint |
| CN107898536A (en) * | 2017-11-09 | 2018-04-13 | 北京市春立正达医疗器械股份有限公司 | Knee-joint prosthesis |
| CN109009575A (en) * | 2018-07-12 | 2018-12-18 | 宽岳医疗器材（苏州）有限公司 | Artificial knee joint prosthesis |
| CN109009578A (en) * | 2018-08-21 | 2018-12-18 | 北京市春立正达医疗器械股份有限公司 | Knee hinge joint prosthese |
| CN211243915U (en) * | 2019-10-21 | 2020-08-14 | 北京安颂科技有限公司 | Artificial tibia prosthesis and artificial knee joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712042A (en) * | 2022-06-10 | 2022-07-08 | 北京爱康宜诚医疗器材有限公司 | Lock clip extractor |
| CN114732571A (en) * | 2022-06-10 | 2022-07-12 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis and locking clamp thereof |
| CN114712042B (en) * | 2022-06-10 | 2022-10-14 | 北京爱康宜诚医疗器材有限公司 | Lock clip extractor |
| CN114732571B (en) * | 2022-06-10 | 2022-10-14 | 北京爱康宜诚医疗器材有限公司 | Knee joint prosthesis and locking clamp thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5640282B2 (en) | Artificial knee joint with concave and inclined surfaces | |
| JP6636480B2 (en) | Posterior stable orthopedic knee prosthesis with controlled condylar curvature | |
| JP4167813B2 (en) | Knee joint prosthesis with posterior stabilization support for knee joint holding collateral ligament | |
| EP0321927B1 (en) | Elbow joint prosthesis | |
| EP2248488B1 (en) | Anterior stabilized knee implant | |
| EP2779950B1 (en) | Tibial bearing component for a knee prosthesis with improved articular characteristics | |
| JP4378253B2 (en) | Artificial knee with detachable stop pin that limits forward sliding movement of the bearing | |
| JP5128497B2 (en) | Patellar component | |
| US7878989B2 (en) | Knee prostheses | |
| US9649195B2 (en) | Femoral implant for preserving cruciate ligaments | |
| CN110680568A (en) | Artificial tibia prosthesis and artificial knee joint | |
| JP2009523569A5 (en) | ||
| EP3348238A1 (en) | Prosthetic knee implant | |
| JP2010012255A (en) | Posterior stabilized orthopaedic knee prosthesis having controlled condylar curvature | |
| WO2012016002A1 (en) | Stabilized knee prosthesis | |
| GB2483492A (en) | Femoral prosthetic component with extension | |
| CN211243915U (en) | Artificial tibia prosthesis and artificial knee joint | |
| CN109009575B (en) | Artificial knee joint prosthesis | |
| WO2004066882A1 (en) | A mobile bearing knee replacement assembly and a tibial component and a bearing insert therefor | |
| CN212395142U (en) | Knee joint prosthesis | |
| US11666448B2 (en) | Knee prosthesis and knee prosthesis component | |
| CN111643230B (en) | Tibial plateau, mobile plateau spacer, fixed plateau spacer and prosthesis system for primary total knee replacement | |
| CN116059015A (en) | Knee joint spacer and knee joint prosthesis having the same | |
| JPWO2018047967A1 (en) | Artificial joint | |
| RU2114580C1 (en) | Endoprosthesis of knee-joint |
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 |