CN108403264A - Diversification knee joint tibial platform pads prosthese - Google Patents
Diversification knee joint tibial platform pads prosthese Download PDFInfo
- Publication number
- CN108403264A CN108403264A CN201810456012.3A CN201810456012A CN108403264A CN 108403264 A CN108403264 A CN 108403264A CN 201810456012 A CN201810456012 A CN 201810456012A CN 108403264 A CN108403264 A CN 108403264A
- Authority
- CN
- China
- Prior art keywords
- tibial plateau
- prosthese
- pad
- plateau pad
- knee joint
- 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.)
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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
-
- 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
Abstract
Prosthese is padded the invention discloses a kind of diversification knee joint tibial platform, and for according to posterior cruciate ligament of knee with collateral ligaments function the case where is corresponding to select tibial plateau pad prosthese, using superhigh molecular weight polyethylene material；Arc-shaped recess (4) is provided in the middle part of tibial plateau pad prosthese, and the upper surface both sides of tibial plateau pad prosthese are provided with the curved surface (5) for accommodating condyle of femur, the bottom surface of tibial plateau pad prosthese matches with platform support；Tibial plateau pad prosthese includes the standard type tibial plateau pad (1) coordinated respectively with condyle of femur, deep dish-type tibial plateau pad (2) and anterior lip raising type tibial plateau pad (3).Different types of tibial plateau pad and same platform support can be used cooperatively by a kind of diversification knee joint tibial platform pad prosthese of the present invention by the tibial plateau pad of diversified design, high with patient's knee joint matching degree.
Description
Technical field
The present invention relates to medical prosthesis fields more particularly to a kind of diversification knee joint tibial platform to pad prosthese.
Background technology
Knee-joint prosthesis is for replacing kneed surgical implant, being used for knee joint surface knee replacement surgery.It is existing
Knee-joint prosthesis structure be mainly press-fit structure, be made of condyle of femur, platform pad and platform support.Wherein platform pad with it is flat
Composition shin bone part prosthese, tibial plateau pad alternative knee joint tibial partial joint face after the installation of platform support.
Above-mentioned knee joint tibial platform pad, though alternative knee joint tibial partial joint face, has progressive really,
It is to have been found that in actual use in its structure there is also there are several disadvantages, causes the knee joint in practical application, fail to reach
To best using effect, and its disadvantage can be summarized as follows：
1) abrasion of platform pad is heavier, go down on one's knees 10-45 ° when condyle of femur and platform pad curved surface and contacted for line, although knee joint is false
Body high stability during exercise, but will appear stress friction phenomenon in daily walking process, keep polyethylene column very fast
Abrasion increases the probability that prosthese is overhauled to reduce prosthese service life, due to fixed platform prosthese during exercise condyle of femur outside
It turns over and will appear platform pad and lateral femoral condyle prosthesis frequent impact with inward turning, platform is caused to pad serious wear；Knee joint is highly being gone down on one's knees
When, condyle of femur be easy after turn over dislocation, although now with product be the design for preventing femur condyle dislocation, highly going down on one's knees
When pad the variation of contact position with condyle of femur and platform, anti-dislocation effect is not so ideal；
2) design of platform pad is single, when occurring the case where sound patient's collateral ligaments function or afunction in operation,
Since tibial plateau pad designs single, cannot be according to collateral ligaments and the front and back ligamentaum cruciatum of patient the case where, displacement is suitable for
The tibial plateau pad of patient influences patient's Postoperative Satisfaction and comfort level, and can to the reduction of patient's knee range of motion occur
Energy increase is postoperative to there is the probability of prosthetic loosening；The platform pad of overwhelming majority knee-joint prosthesis product is that non-diversification is set now
Meter, tends not in use according to the matched prosthese of patient's ligament function mounting, this can cause platform pad in condyle of femur
It turns up and changes with the rotary middle point of inward turning, cause the serious wear of platform pad.
Invention content
The purpose of the present invention is to provide a kind of diversification that can be made to measure according to the kneed ligament function of patient
Knee joint tibial platform pads prosthese.
To achieve the above object, the specific technical solution of diversification knee joint tibial platform of the invention pad prosthese is：
A kind of diversification knee joint tibial platform pad prosthese, the case where being used for according to posterior cruciate ligament of knee and collateral ligaments function
Corresponding selection tibial plateau pads prosthese, using superhigh molecular weight polyethylene material；It is provided in the middle part of tibial plateau pad prosthese
Arc-shaped recess, and the upper surface both sides of tibial plateau pad prosthese are provided with the curved surface for accommodating condyle of femur, and shin bone is flat
The bottom surface of cushion prosthese matches with platform support；Tibial plateau pad prosthese includes that the standard type shin bone coordinated respectively with condyle of femur is put down
Cushion, deep dish-type tibial plateau pad and anterior lip raising type tibial plateau pad.
Further, the standard type tibial plateau pad patient intact for posterior cruciate ligament of knee and collateral ligaments function, standard
The back rake angle of arc-shaped depression in the middle part of type tibial plateau pad is 2-5 °, and swing angle degree is 15 ° inside and outside the maximum of two N-Side surfs,
By two N-Side surfs to allow knee-joint prosthesis that can have maximum 15 ° of inside and outside swing angle degree.
Further, deep dish-type tibial plateau pad is for posterior cruciate function to be intact, the defective trouble of collateral ligaments function
The back rake angle of person, the arc-shaped depression in the middle part of deep dish-type tibial plateau pad are 0 °；The curved surface of deep dish-type tibial plateau pad both sides with
The bottom surface comprehensive engagement of condyle of femur.
Further, anterior lip raising type tibial plateau pad is for posterior cruciate ligament of knee and the defective patient of collateral ligaments function
Or the patient that posterior cruciate function is defective, collateral ligaments function is intact, the circle in the middle part of anterior lip raising type tibial plateau pad
The back rake angle of arc-shaped recess is 2-5 °, and swing angle degree is 15 ° inside and outside the maximum of curved surface, by two N-Side surfs to allow knee-joint prosthesis
There can be maximum 15 ° of inside and outside swing angle degree.
Further, anterior lip raising type tibial plateau pad include protrusion anterior lip, anterior lip be arranged the side of arc-shaped depression,
Close to the rear side of condyle of femur, anterior lip opposing arcs shape recess is higher by 3-5mm, femur condyle dislocation when buckling high to prevent knee joint.
The advantages of diversification knee joint tibial platform pad prosthese of the present invention, is：
1) meet local physiological and biomethanics requirement, reduce tibial plateau pad and wear and meet what patient needed, it can be with
Reproduce the prosthese of the normal kinematics character of knee joint；
2) defect existing for existing knee joint tibial platform pad prosthese is overcome, a kind of shin bone of diversified design is provided
Platform pad can be according to the kneed ligament of patient to intersect after being adapted to and the patient of two collateral ligaments different function loss
Function is made to measure, have stability it is good, it is high with patient's knee joint size matching degree the features such as, to make the Using prosthesis of implantation
Stablize, facilitating operation, reduces abrasion to extend the prosthese service life, thus more suitable for practicality；
3) by the tibial plateau pad of the application diversified design, can by different types of tibial plateau pad with it is same
Platform support is used cooperatively, high with patient's knee joint matching degree.
Description of the drawings
Fig. 1 a and Fig. 1 b are the structural schematic diagram and side view of the standard type tibial plateau pad of the present invention；
Fig. 2 a and Fig. 2 b are the structural schematic diagram and side view of the deep dish-type tibial plateau pad of the present invention；
Fig. 2 c are the deep dish-type tibial plateau pad of the present invention and the structural schematic diagram that condyle of femur matches；
Fig. 3 a-3c are the structural schematic diagram and side view of the anterior lip raising type tibial plateau pad of the present invention；
Fig. 4 is that the tibial plateau of the application pads the scheme of installation of prosthese.
Specific implementation mode
It is below in conjunction with the accompanying drawings, polynary to one kind of the present invention in order to be better understood by the purpose of the present invention, structure and function
Change knee joint tibial platform pad prosthese and does further detailed description.Tibial plateau pads diversified design
As shown in Figures 1 to 4, it is shown as the knee joint tibial platform pad prosthese of the present invention, according to posterior cruciate ligament of knee and side
The case where ligamena collateralia function, selects tibial plateau to pad prosthese accordingly, using superhigh molecular weight polyethylene material, tibial plateau pad
Arc-shaped recess 4 is provided in the middle part of prosthese, and the upper surface both sides of tibial plateau pad prosthese are provided with for accommodating stock
The bottom surface of the curved surface 5 of bone condyle, tibial plateau pad prosthese matches with platform support；Tibial plateau pad prosthese include respectively with condyle of femur
The standard type tibial plateau pad 1 of cooperation, deep dish-type tibial plateau pad 2 and anterior lip raising type tibial plateau pad 3.
Specifically, the patient intact for posterior cruciate ligament of knee and collateral ligaments function of standard type tibial plateau pad 1, mark
The back rake angle (angle of the section and horizontal plane that are recessed) of the arc-shaped depression at 1 middle part of pseudotype tibial plateau pad is 2-5 ° (excellent
Select 3 °), and swing angle degree (i.e. the angle of longitudinal center plane and longitudinal maximum inclination face) is 15 ° inside and outside the maximum of two N-Side surfs,
It, being capable of compensation operation operation or art by two N-Side surfs to allow knee-joint prosthesis that can have maximum 15 ° of inside and outside swing angle degree
Malrotation between stock-tibial prosthesis caused by normal activity afterwards improves the comfort level of the postoperative knee articulation of patient.
Further, deep dish-type tibial plateau pad 2 is for posterior cruciate function to be intact, the defective trouble of collateral ligaments function
The back rake angle of person, the arc-shaped depression at 2 middle part of deep dish-type tibial plateau pad are 0 °, i.e. the section of arc-shaped depression and horizontal plane is flat
Together；The bottom shape for the curved surface and condyle of femur that deep dish-type tibial plateau pads 2 both sides matches, and the bottom surface of curved surface and condyle of femur is comprehensive
Contact, when the high buckling of knee joint, deep dish-type tibial plateau pad 2 can keep the high contact area of stock-tibial prosthesis, to subtract
The abrasion of few tibial plateau pad.
Further, anterior lip raising type tibial plateau pad 3 is for posterior cruciate ligament of knee and the defective trouble of collateral ligaments function
Person or the patient that posterior cruciate function is defective, collateral ligaments function is intact, 3 middle part of anterior lip raising type tibial plateau pad
The back rake angle (angle of the section and horizontal plane that are recessed) of arc-shaped depression is 2-5 ° (preferably 3 °), outward turning in the maximum of curved surface
Angle (i.e. the angle of longitudinal center plane and longitudinal maximum inclination face) is 15 °, by two N-Side surfs to allow knee-joint prosthesis energy
It is enough with maximum 15 ° of inside and outside swing angle degree, stock-tibial prosthesis that can be caused by compensation operation operation or postoperative normal activity it
Between malrotation, improve the postoperative knee articulation of patient comfort level.In addition, anterior lip raising type tibial plateau pad 3 includes convex
The anterior lip 31 risen, anterior lip are arranged in the side of arc-shaped depression, close to the rear side of condyle of femur, and anterior lip opposing arcs shape recess is higher by
3-5mm (preferably 4mm), under the premise of ensureing that condyle of femur and tibial plateau pad knuckle shaped are right, by improving anterior lip raising type
The anterior lip of tibial plateau pad 3 can avoid condyle of femur when knee joint high buckling that dislocation phenomenon occurs.
The diversification knee joint tibial platform of the present invention pads prosthese, meets local physiological and biomethanics requirement, reduces shin
Bone platform pad wears and meets patient's needs, can reproduce the prosthese of the normal kinematics character of knee joint；It overcomes existing
Knee joint tibial platform pads defect existing for prosthese, provides a kind of tibial plateau pad of diversified design, to hand over after being adapted to
The patient of fork and the loss of two collateral ligaments different function, can make to measure according to the kneed ligament function of patient, have steady
It is qualitative good, it is high with patient's knee joint size matching degree the features such as, the Using prosthesis of implantation is stable, facilitating operation to making, and reduces
Abrasion is to extend the prosthese service life, thus more suitable for practicality；It, can will be with by the tibial plateau pad of the application diversified design
Same platform support is used cooperatively, high with patient's knee joint matching degree.
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction to the spirit and scope of the invention, and one of ordinary skilled in the art is reading this explanation
The various modifications made to above-described embodiment after book belong to the range that the present invention is protected.
Claims (5)
1. a kind of diversification knee joint tibial platform pads prosthese, which is characterized in that for according to posterior cruciate ligament of knee and collateral ligaments
The case where function, selects tibial plateau to pad prosthese accordingly, using superhigh molecular weight polyethylene material；Tibial plateau pads prosthese
Middle part is provided with arc-shaped recess (4), and the upper surface both sides of tibial plateau pad prosthese are provided with for accommodating condyle of femur
(6) bottom surface of curved surface (5), tibial plateau pad prosthese matches with platform support；Tibial plateau pad prosthese include respectively with femur
The standard type tibial plateau pad (1) of condyle cooperation, deep dish-type tibial plateau pad (2) and anterior lip raising type tibial plateau pad (3).
2. diversification knee joint tibial platform according to claim 1 pads prosthese, which is characterized in that standard type tibial plateau
(1) patient intact for posterior cruciate ligament of knee and collateral ligaments function is padded, it is arc-shaped in the middle part of standard type tibial plateau pad (1)
The back rake angle of recess is 2-5 °, and swing angle degree is 15 ° inside and outside the maximum of two N-Side surfs, by two N-Side surfs to allow knee joint
Prosthese can have maximum 15 ° of inside and outside swing angle degree.
3. diversification knee joint tibial platform according to claim 1 pads prosthese, which is characterized in that deep dish-type tibial plateau
Pad (2) intact, defective patient of collateral ligaments function for posterior cruciate function, deep dish-type tibial plateau pad (2) middle part
Arc-shaped depression back rake angle be 0 °；The bottom surface comprehensive engagement of the curved surface and condyle of femur of deep dish-type tibial plateau pad (2) both sides.
4. diversification knee joint tibial platform according to claim 1 pads prosthese, anterior lip raising type tibial plateau pad (2) is used
Defective, the collateral ligaments function in posterior cruciate ligament of knee and the defective patient of collateral ligaments function or posterior cruciate function
The back rake angle of intact patient, the arc-shaped depression in the middle part of anterior lip raising type tibial plateau pad (3) are 2-5 °, the most imperial palace of curved surface
Outward turning angle is 15 °, by two N-Side surfs to allow knee-joint prosthesis that can have maximum 15 ° of inside and outside swing angle degree.
5. diversification knee joint tibial platform according to claim 4 pads prosthese, anterior lip raising type tibial plateau pad (3) packet
The anterior lip (31) of protrusion is included, anterior lip is arranged in the side of arc-shaped depression, close to the rear side of condyle of femur, and anterior lip opposing arcs shape is recessed
It falls into and is higher by 3-5mm, femur condyle dislocation when buckling high to prevent knee joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456012.3A CN108403264A (en) | 2018-05-14 | 2018-05-14 | Diversification knee joint tibial platform pads prosthese |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456012.3A CN108403264A (en) | 2018-05-14 | 2018-05-14 | Diversification knee joint tibial platform pads prosthese |
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| Publication Number | Publication Date |
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| CN108403264A true CN108403264A (en) | 2018-08-17 |
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| CN201810456012.3A Pending CN108403264A (en) | 2018-05-14 | 2018-05-14 | Diversification knee joint tibial platform pads prosthese |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111616842A (en) * | 2020-05-27 | 2020-09-04 | 北京市春立正达医疗器械股份有限公司 | Cruciate ligament-retaining type tibial platform pad and knee joint prosthesis applying same |
| CN113855339A (en) * | 2021-09-30 | 2021-12-31 | 北京市春立正达医疗器械股份有限公司 | Bionic stable type unicondylar knee joint tibia platform pad and knee joint prosthesis applying same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080027557A1 (en) * | 2006-05-09 | 2008-01-31 | Finsbury (Development) Limited | Knee Prosthesis |
| CN101351161A (en) * | 2005-07-21 | 2009-01-21 | 亚历山大研究科学有限责任公司 | Apparatus and method for sculpting the surface of a joint |
| CN101977570A (en) * | 2008-02-11 | 2011-02-16 | 精密技术公司 | Knee prosthesis system with slope |
| CN102497837A (en) * | 2009-07-27 | 2012-06-13 | 托马斯·P·安瑞尔基 | Knee replacement system and method for enabling natural knee movement |
| CN104066402A (en) * | 2011-11-18 | 2014-09-24 | 捷迈有限公司 | Tibial bearing component for a knee prosthesis with improved articular characteristics |
| CN105640672A (en) * | 2010-01-21 | 2016-06-08 | 德普伊产品公司 | Knee prosthesis system |
| CN209172591U (en) * | 2018-05-14 | 2019-07-30 | 北京市春立正达医疗器械股份有限公司 | Diversification knee joint tibial platform pads prosthese |
-
2018
- 2018-05-14 CN CN201810456012.3A patent/CN108403264A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351161A (en) * | 2005-07-21 | 2009-01-21 | 亚历山大研究科学有限责任公司 | Apparatus and method for sculpting the surface of a joint |
| US20080027557A1 (en) * | 2006-05-09 | 2008-01-31 | Finsbury (Development) Limited | Knee Prosthesis |
| CN101977570A (en) * | 2008-02-11 | 2011-02-16 | 精密技术公司 | Knee prosthesis system with slope |
| CN102497837A (en) * | 2009-07-27 | 2012-06-13 | 托马斯·P·安瑞尔基 | Knee replacement system and method for enabling natural knee movement |
| CN105640672A (en) * | 2010-01-21 | 2016-06-08 | 德普伊产品公司 | Knee prosthesis system |
| CN104066402A (en) * | 2011-11-18 | 2014-09-24 | 捷迈有限公司 | Tibial bearing component for a knee prosthesis with improved articular characteristics |
| CN209172591U (en) * | 2018-05-14 | 2019-07-30 | 北京市春立正达医疗器械股份有限公司 | Diversification knee joint tibial platform pads prosthese |
Non-Patent Citations (1)
| Title |
|---|
| WOOSHIN CHO: "《膝关节置换术策略与技巧》", 上海科学技术出版社, pages: 201 - 36 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111616842A (en) * | 2020-05-27 | 2020-09-04 | 北京市春立正达医疗器械股份有限公司 | Cruciate ligament-retaining type tibial platform pad and knee joint prosthesis applying same |
| CN113855339A (en) * | 2021-09-30 | 2021-12-31 | 北京市春立正达医疗器械股份有限公司 | Bionic stable type unicondylar knee joint tibia platform pad and knee joint prosthesis applying same |
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