CN111035480B - Tibia prosthesis structure - Google Patents
Tibia prosthesis structure Download PDFInfo
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- CN111035480B CN111035480B CN201911358763.2A CN201911358763A CN111035480B CN 111035480 B CN111035480 B CN 111035480B CN 201911358763 A CN201911358763 A CN 201911358763A CN 111035480 B CN111035480 B CN 111035480B
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- patch assembly
- rack
- tibial
- patch
- prosthesis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a tibial prosthesis structure which is used for knee joint operation and comprises a tibial body and a prosthetic prosthesis, wherein the prosthetic prosthesis is used for filling a defect part of a metaphyseal of the tibial body, the prosthetic prosthesis comprises a first patch assembly and a second patch assembly, and the first patch assembly is adjustably arranged relative to the second patch assembly in position so as to fill a containing defect part of the metaphyseal of the knee joint by changing the relative position relation between the first patch assembly and the second patch assembly. The tibial prosthesis structure solves the problem that the specification of the filling prosthesis and the tibial defect part in the prior art are difficult to adapt.
Description
Technical Field
The invention relates to the field of medical prostheses, in particular to a tibial prosthesis structure.
Background
With the increase of total knee arthroplasty, knee joint revision surgery has also increased year by year, and postoperative infection and prosthetic loosening are the main causes of knee joint revision. Bone defect is caused by infection or prosthesis loosening, and the stability of the prosthesis after installation is affected by severe bone defect, so that the bone defect is required to be filled in clinic, the stability of the prosthesis installation is rebuilt, and the service life of the prosthesis is prolonged.
When the proximal end of the tibia has the containing defect, the stability of the tibial plateau needs to be rebuilt through the filling block, most of the current filling block prostheses provide prostheses with the sizes of 4 to 5 specifications, the gap between each specification is 5mm to 10mm, and in clinical practical application, the perfect fit with the bone defect surface cannot be realized due to the different sizes of the bone defects, and the bone defect surface also needs to be filled with bone cement, otherwise, the bone defect needs to be resected through a tool so as to realize the fit with the filling block with larger specification, and larger bone defect is caused.
Disclosure of Invention
The invention mainly aims to provide a tibial prosthesis structure which solves the problem that the specification of a filling prosthesis and a tibial defect part in the prior art are difficult to adapt.
In order to achieve the above object, according to one aspect of the present invention, there is provided a tibial prosthesis structure for use in knee joint surgery, the tibial prosthesis structure comprising a tibial body, a prosthetic prosthesis for filling a defect site of a metaphyseal end of the tibial body, the prosthetic prosthesis comprising a first patch assembly and a second patch assembly, the first patch assembly being adjustably positionable relative to the second patch assembly to fill a containment defect site of the metaphyseal end of the knee joint by varying a relative positional relationship between the first patch assembly and the second patch assembly.
Further, the first patch assembly and the second patch assembly are relatively movably disposed to move toward and away from each other.
Further, a first sliding part is arranged on the first patch assembly, a second sliding part is arranged on the second patch assembly, and the first patch assembly moves relative to the second sliding part through the first sliding part.
Further, the first patch assembly is provided with a first sliding tooth set, the second patch assembly is provided with a second sliding tooth set, and the first patch assembly is connected with the second sliding tooth set in a matched manner through the first sliding tooth set.
Further, the first sliding tooth set comprises a first rack and a second rack, the second sliding tooth set comprises a third rack and a fourth rack, the first rack is opposite to the third rack, and the second rack is opposite to the fourth rack.
Further, the third rack and the fourth rack are relatively movably disposed to move toward or away from each other.
Further, the second sliding tooth set is made of elastic materials.
Further, the first sliding tooth set and the first patch assembly are of an integrated structure, and the second sliding tooth set and the second patch assembly are of an integrated structure.
Further, a connecting portion is provided on the prosthetic prosthesis for connecting with the tibial body.
Further, the connecting portion comprises a first clamping groove and a second clamping groove, the first clamping groove is formed in the first patch assembly, so that the first patch assembly is fixed on the tibia body through the first clamping groove, and the second clamping groove is formed in the second patch assembly, so that the second patch assembly is fixed on the tibia body through the second clamping groove.
The tibial prosthesis structure of the technical scheme is mainly applied to knee joint operation and is used for repairing a defect part of a metaphyseal of a tibial body, the tibial prosthesis structure comprises the tibial body and a prosthetic part, the prosthetic comprises a first patch component and a second patch component, the first patch component and the second patch component can relatively move close to or away from each other to change the shape of the prosthetic so as to adapt to the size of the defect part, and therefore the prosthetic is just filled in the defect part by adjusting the shape of the prosthetic, and the problem that the specification of the filled prosthesis and the defect part of the tibia are difficult to adapt in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 illustrates a schematic overall construction of an embodiment of a tibial prosthetic structure in accordance with the present invention;
FIG. 2 illustrates a first perspective schematic view of a first patch assembly embodiment of a tibial prosthetic structure of the present invention;
FIG. 3 illustrates a second perspective view of an embodiment of a first patch assembly of the tibial prosthetic structure of the present invention;
FIG. 4 illustrates a first perspective schematic view of a second patch assembly embodiment of a tibial prosthetic structure of the present invention;
FIG. 5 illustrates a second perspective schematic view of a second patch assembly embodiment of a tibial prosthetic structure of the present invention;
FIG. 6 shows a schematic view of a first embodiment of a prosthetic prosthesis of the tibial prosthetic structure of the present invention;
FIG. 7 shows a schematic view of a second embodiment of a prosthetic prosthesis of the tibial prosthetic structure of the present invention;
Fig. 8 shows a schematic view of a tibial body and defect site of an embodiment of a tibial prosthesis structure of the present invention.
Wherein the above figures include the following reference numerals:
10. a first patch assembly; 11, a first sliding tooth set, 12, a first clamping groove, 20, a second patch assembly, 21, a second sliding tooth set, 22, a second clamping groove, 30, a defect part and 40, a tibia body.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The present invention provides a tibial prosthesis structure for knee joint surgery, please refer to fig. 1-8, the tibial prosthesis structure comprises a tibial body 40, a prosthetic prosthesis for filling a defect site 30 of a metaphyseal end of the tibial body 40, the prosthetic prosthesis comprising a first patch assembly 10 and a second patch assembly 20, the first patch assembly 10 being adjustably positioned with respect to the second patch assembly 20 to fill the inclusive defect site 30 of the metaphyseal end of the knee joint by changing the relative positional relationship between the first patch assembly 10 and the second patch assembly 20.
The tibial prosthesis structure is mainly applied to knee joint operation and is used for repairing a defect part 30 of a metaphyseal part of a tibial body 40, the tibial prosthesis structure comprises the tibial body 40 and a prosthetic part, the prosthetic comprises a first patch assembly 10 and a second patch assembly 20, the first patch assembly 10 and the second patch assembly 20 can relatively move close to or away from each other to change the shape of the prosthetic so as to adapt to the size of the defect part, and the problem that the specification of the filling prosthesis and the defect part of the tibia are difficult to adapt in the prior art is solved by adjusting the shape of the prosthetic so that the prosthetic just fills the defect part.
The first patch assembly 10 and the second patch assembly 20 are relatively movably disposed to move toward and away from each other. The first patch assembly 10 is provided with a first sliding part, the second patch assembly 20 is provided with a second sliding part, and the first patch assembly 10 moves relative to the second sliding part through the first sliding part.
The first patch assembly 10 and the second patch assembly 20 in this embodiment are slidably disposed relative to one another.
Preferably, the tibial prosthesis further comprises a locking component for locking the first patch component 10 and the second patch component 20 together, and when in use, the relative positions of the first patch component 10 and the second patch component 20 are moved, and after the positions are moved, the locking component fixes the first patch component 10 and the second patch component 20 together and fills the defect part.
The first patch assembly 10 is provided with a first sliding tooth set 11, the second patch assembly 20 is provided with a second sliding tooth set 21, and the first patch assembly 10 is connected with the second sliding tooth set 21 in a matched manner through the first sliding tooth set 11. The first sliding tooth set 11 includes a first rack and a second rack, and the second sliding tooth set 21 includes a third rack and a fourth rack, the first rack being disposed opposite to the third rack, the second rack being disposed opposite to the fourth rack.
The positional adjustment relationship between the first patch assembly 10 and the second patch assembly 20 is achieved by the rack in the present embodiment.
The third rack and the fourth rack are relatively movably disposed to move toward or away from each other.
In this embodiment, when the second patch assembly is inserted into the first patch assembly, the third rack and the fourth rack are moved close to each other, then interposed between the first rack and the second rack, and the third rack and the fourth rack are moved apart to fit the third rack to the first rack, and the second rack and the fourth rack are fitted to each other, thereby positioning the positional relationship between the first patch assembly 10 and the second patch assembly 20.
Preferably, the second sliding tooth set 21 is made of an elastic material. In this way, when in use, the third rack and the fourth rack can be pressed first and then put between the first rack and the second rack.
The first sliding tooth set 11 and the first patch assembly 10 are integrally formed, and the second sliding tooth set 21 and the second patch assembly 20 are integrally formed.
The prosthetic is provided with a connection for connection with the tibial body 40. The connection includes a first slot 12 and a second slot 22, the first slot 12 being disposed on the first patch assembly 10 such that the first patch assembly 10 is secured to the tibial body 40 via the first slot 12, and the second slot 22 being disposed on the second patch assembly 20 such that the second patch assembly 20 is secured to the tibial body 40 via the second slot 22.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
The invention relates to a tibial prosthesis structure, which is provided with an adjustable assembled tibial bone defect repair prosthesis, wherein the repair prosthesis is formed by combining a first patch assembly 10 and a second patch assembly 20, the first patch assembly 10 and the second patch assembly 20 are assembled and used through a plurality of teeth in a meshed mode, so that the adjustment distance of a gradient of 1mm can be minimum, damage to defective bones is reduced to the greatest extent, and a tibial platform prosthesis assembly is implanted after the tibial platform prosthesis assembly is adjusted to a proper position.
The first patch assembly 10 and the second patch assembly 20 are made of biological medical materials, and the surfaces of the first patch assembly and the second patch assembly are made of porous structures or are subjected to surface roughening treatment through a coating technology.
The prosthetic prosthesis has a height adjustment range of between 10mm and 50 mm.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present invention, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911358763.2A CN111035480B (en) | 2019-12-25 | 2019-12-25 | Tibia prosthesis structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911358763.2A CN111035480B (en) | 2019-12-25 | 2019-12-25 | Tibia prosthesis structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111035480A CN111035480A (en) | 2020-04-21 |
| CN111035480B true CN111035480B (en) | 2025-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911358763.2A Active CN111035480B (en) | 2019-12-25 | 2019-12-25 | Tibia prosthesis structure |
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| Country | Link |
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| CN (1) | CN111035480B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162349A (en) * | 1994-11-16 | 1997-10-15 | 安德烈·阿尔诺·苏贝朗 | device for moving two bodies relative to each other |
| CN211560544U (en) * | 2019-12-25 | 2020-09-25 | 北京爱康宜诚医疗器材有限公司 | Tibia structure |
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| US4944757A (en) * | 1988-11-07 | 1990-07-31 | Martinez David M | Modulator knee prosthesis system |
| RU2430703C2 (en) * | 2005-05-02 | 2011-10-10 | Кайнетик Спайн Текнолоджиз Инк. | Intervertebral disk endoprosthesis |
| ES2395298T3 (en) * | 2006-07-14 | 2013-02-11 | Biedermann Technologies Gmbh & Co. Kg | Separator for insertion between two vertebrae |
| CN101631516A (en) * | 2007-03-13 | 2010-01-20 | 新特斯有限责任公司 | Adjustable intervertebral implant |
| JP2008289628A (en) * | 2007-05-24 | 2008-12-04 | Ehime Univ | Osteosynthesis block including osteosynthesis block and osteosynthesis block |
| US8968413B2 (en) * | 2013-03-14 | 2015-03-03 | Depuy (Ireland) | Orthopaedic tibial prosthesis having tibial augments |
| DE102014204326A1 (en) * | 2014-03-10 | 2015-09-10 | Waldemar Link Gmbh & Co. Kg | Connecting device for connecting two prosthesis parts and set with such a connection device and two prosthesis parts |
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| CN104799978B (en) * | 2015-05-22 | 2017-01-11 | 北京爱康宜诚医疗器材股份有限公司 | femoral prosthesis |
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| CN104814815B (en) * | 2015-05-22 | 2016-10-05 | 北京爱康宜诚医疗器材股份有限公司 | Joint prosthesis |
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| CN207485793U (en) * | 2017-09-28 | 2018-06-12 | 安红忠 | A kind of inner tooth type telescopic support |
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| CN110151363B (en) * | 2019-06-11 | 2024-03-01 | 北京爱康宜诚医疗器材有限公司 | Adjustable sacral prosthesis assembly |
| CN110584842A (en) * | 2019-09-30 | 2019-12-20 | 北京爱康宜诚医疗器材有限公司 | Extendable prosthesis |
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2019
- 2019-12-25 CN CN201911358763.2A patent/CN111035480B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162349A (en) * | 1994-11-16 | 1997-10-15 | 安德烈·阿尔诺·苏贝朗 | device for moving two bodies relative to each other |
| CN211560544U (en) * | 2019-12-25 | 2020-09-25 | 北京爱康宜诚医疗器材有限公司 | Tibia structure |
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| Publication number | Publication date |
|---|---|
| CN111035480A (en) | 2020-04-21 |
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