CN102920536A - Buffer-type artificial ankle joint - Google Patents
Buffer-type artificial ankle joint Download PDFInfo
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- CN102920536A CN102920536A CN2012104562051A CN201210456205A CN102920536A CN 102920536 A CN102920536 A CN 102920536A CN 2012104562051 A CN2012104562051 A CN 2012104562051A CN 201210456205 A CN201210456205 A CN 201210456205A CN 102920536 A CN102920536 A CN 102920536A
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- buffer
- ankle joint
- tibia
- type artificial
- astragalus
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Abstract
The invention discloses a buffer-type artificial ankle joint which comprises an implant used for being installed in cancellous bones at the lower end of a tibia, a tibia end foundation plate, a tibia end joint surface, a talus end joint surface, a talus end foundation plate and a buffer device. The implant is hollow, and the circumferential wall is provided with holes. One end of the tibia end foundation plate is movably connected with the implant, and the other end of the tibia end foundation plate is connected to the tibia end joint surface in a clamping mode. The talus end joint surface is connected with the talus end foundation plate in a shaft matched mode. The talus end foundation plate is provided with shocking proof holes used for installation of the buffer device. The structural design of the buffer-type artificial ankle joint meets requirements of human body ankle joint anatomy, imitates ankle joint physiological movement, and fits biomechanics characteristics. The buffer device can reduce collision, reliefs stress conduction, effectively reduces movement load, and overcomes overall pressure stress. The buffer-type artificial ankle joint is simple in operation, and is wide in applicable diseases.
Description
Technical field
The present invention relates to joint prosthesis's technical field, particularly relate to a kind of buffer-type artificial ankle joint.
Background technology
Orthopaedics is very fast with the artificial joint development at present, and purpose is the final joint function disturbance that effectively solves many patients, but does not still have a kind of artificial ankle joint that more meets ankle joint dissect physiology and physiological function at present.
Orthopaedics solves the prosthese that the ankle joint function disease adopts both at home and abroad now, it is the surface of bone hard substitute of distal tibial and astragalus upper end, first accept the sport dynamics requirement in stress joint in the large joint of solution human body that it can not be desirable, also just do not reach the requirement of repairing joint mass motion balance and satisfying its biomechanics.
Summary of the invention
The objective of the invention is for the technological deficiency that exists in the prior art, and a kind of model of human ankle anatomy requirement that meets is provided, bionical in the ankle joint physiological movement, meet the buffer-type artificial ankle joint of its biomechanics characteristic.
For realizing that the technical scheme that purpose of the present invention adopts is: a kind of buffer-type artificial ankle joint comprises be used to the implantation body, ligament tibia end soleplate, ligament tibia end articular surface, astragalus end articular surface, astragalus end soleplate and the buffer unit that are installed in the spongy bone of tibia lower end; Described implantation body is hollow form, and its perisporium is provided with perforate; One end of described ligament tibia end soleplate and implantation body are flexibly connected, and the other end is pegged graft and is connected on the ligament tibia end articular surface; Described astragalus end articular surface and described astragalus end soleplate axle are connected; Described astragalus end soleplate is provided with for the shock-absorbing hole that buffer unit is installed.
Further, the end margin of described implantation body in being installed on tibia lower end spongy bone is provided with arc notch, and implantation body implants in the spongy bone of tibia lower end and more is conducive to metabolism growth between osseous tissue like this.
Preferably, described ligament tibia end soleplate is provided with for the hole of axial location and is used for the flange of radial location, and described ligament tibia end articular surface is provided with the axle that cooperates grafting with the hole and the groove that is engaged with flange.
The axle place of being connected of described astragalus end articular surface and described astragalus end soleplate is provided with the retaining pin.
Described buffer unit comprises bumper post, buffer body, padded coaming and adjustable screw; Described bumper post is installed in the upper end of buffer body, and described padded coaming is installed in the buffer body, and the lower end of described buffer body is equipped with adjustable screw.
Described padded coaming is spring, elastic steel sheet or filling flexible material.
Described flexible material is medical bio silica gel or ultra high molecular polyethylene.
Operation principle of the present invention is to have constituted a kind of bionic device that is similar to model of human ankle by hollow form implantation body, ligament tibia end base surface, ligament tibia end articular surface, the astragalus end soleplate that has the astragalus end articular surface of many curved surfaces mobility and buffer unit is installed, and buffer unit is installed, buffer unit has the structural design of elastic buffer shock-absorbing, that anatomy relationship, physiological activity function and biomechanics characteristic thereof take the model of human ankle uniqueness is as foundation, adopt the combination of motion simulation machinery to match, have the bionic joint characteristic.
Compared with prior art, the invention has the beneficial effects as follows:
(1) structural design of buffer-type artificial ankle joint meets the requirement of model of human ankle anatomy, and is bionical in the ankle joint physiological movement, meets its biomechanics characteristic;
(2) buffer unit can reduce collision, and the relieve stresses conduction effectively reduces its movement load, overcomes integrated pressure stress;
(3) rectification and the reparation of total joint deformity is convenient in the design of the adjustability articular surface in the buffer-type model of human ankle;
(4) operation technique is simple, and is widely applicable.
Description of drawings
Figure 1 shows that each member connection structure sketch map of buffer-type artificial ankle joint;
Figure 2 shows that buffer-type artificial ankle joint overall structure sketch map;
Figure 3 shows that the buffer unit structure sketch map.
Among the figure: the 1st, implantation body, the 2nd, ligament tibia end soleplate, the 3rd, ligament tibia end articular surface, the 4th, astragalus end articular surface, the 5th, astragalus end soleplate, the 6th, buffer unit, the 7th, perforate, the 8th, breach, the 9th, flange, the 10th, axle, the 11st, groove, the 12nd, bumper post, the 13rd, buffer body, the 14th, padded coaming, the 15th, adjustable screw.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Embodiment: a kind of buffer-type artificial ankle joint as depicted in figs. 1 and 2, comprises be used to the implantation body 1, ligament tibia end soleplate 2, ligament tibia end articular surface 3, astragalus end articular surface 4, astragalus end soleplate 5 and the buffer unit 6 that are installed in the spongy bone of tibia lower end; Described implantation body is hollow form, and its perisporium is provided with perforate 7; One end of described ligament tibia end soleplate 2 and implantation body 1 are flexibly connected, and select threaded engagement to connect better effects if, and implantation body can treat afterwards and break away from the ligament tibia end soleplate when needing like this, also is convenient for changing miscellaneous part;
The other end of described ligament tibia end soleplate 2 is with described ligament tibia end articular surface 3 clampings, specifically, described ligament tibia end soleplate 2 is provided with for the hole of axial location and is used for the flange 9 of radial location, and described ligament tibia end articular surface is provided with the axle 10 that cooperates grafting with the hole and the groove 11 that is engaged with flange 9.
Described astragalus end articular surface 3 is connected with described astragalus end soleplate 4 axles, and the axle place of being connected is provided with the retaining pin; Described astragalus end soleplate 5 is provided with for the shock-absorbing hole that buffer unit 6 is installed.
The end margin of described implantation body in being installed on tibia lower end spongy bone is provided with arc notch 8, and the consequence devised of perforate 7 and breach 8 more is conducive to metabolism growth between osseous tissue after can making implantation body implant in the spongy bone of tibia lower end, can realize tight connection.
As shown in Figure 3, described buffer unit 6 comprises bumper post 12, buffer body 13 and padded coaming 14; Described bumper post 12 is installed in the upper end of buffer body 13, and described padded coaming 14 is installed in the buffer body 13, and the lower end of described buffer body 13 is equipped with adjustable screw 15, and adjustable screw can be regulated the buffer condition of buffer unit.
Described padded coaming 14 is spring, elastic steel sheet or filling flexible material;
Described flexible material is medical bio silica gel or ultra high molecular polyethylene, also comprises any flexible material that can realize elastic buffer function that can expect of other those skilled in the art.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a buffer-type artificial ankle joint is characterized in that it comprises be used to the implantation body, ligament tibia end soleplate, ligament tibia end articular surface, astragalus end articular surface, astragalus end soleplate and the buffer unit that are installed in the spongy bone of tibia lower end; Described implantation body is hollow form, and its perisporium is provided with perforate; One end of described ligament tibia end soleplate and implantation body are flexibly connected, and the other end is pegged graft and is fastened on the ligament tibia end articular surface; Described astragalus end articular surface and described astragalus end soleplate axle are connected; Described astragalus end soleplate is provided with for the shock-absorbing hole that buffer unit is installed.
2. buffer-type artificial ankle joint according to claim 1 is characterized in that the end margin of described implantation body in being installed on tibia lower end spongy bone is provided with arc notch.
3. buffer-type artificial ankle joint according to claim 1, it is characterized in that described ligament tibia end soleplate is provided with for the hole of axial location and is used for the flange of radial location, described ligament tibia end articular surface is provided with the axle that cooperates grafting with the hole and the groove that is engaged with flange.
4. buffer-type artificial ankle joint according to claim 1 is characterized in that the axle place of being connected of described astragalus end articular surface and described astragalus end soleplate is provided with the retaining pin.
5. one of according to claim 1-4 described buffer-type artificial ankle joint is characterized in that described buffer unit comprises bumper post, buffer body, padded coaming and adjustable screw; Described bumper post is installed in the upper end of buffer body, and described padded coaming is installed in the buffer body, and the lower end of described buffer body is equipped with adjustable screw.
6. buffer-type artificial ankle joint according to claim 5 is characterized in that described padded coaming is spring, elastic steel sheet or filling flexible material.
7. buffer-type artificial ankle joint according to claim 6 is characterized in that described flexible material is medical bio silica gel or ultra high molecular polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104562051A CN102920536A (en) | 2012-11-14 | 2012-11-14 | Buffer-type artificial ankle joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104562051A CN102920536A (en) | 2012-11-14 | 2012-11-14 | Buffer-type artificial ankle joint |
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| Publication Number | Publication Date |
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| CN102920536A true CN102920536A (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104562051A Pending CN102920536A (en) | 2012-11-14 | 2012-11-14 | Buffer-type artificial ankle joint |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598936A (en) * | 2013-10-21 | 2014-02-26 | 上海市第十人民医院 | Combined tumor-type ankle joint prosthesis |
| CN104887359A (en) * | 2015-06-29 | 2015-09-09 | 北京贝思达生物技术有限公司 | Artificial ankle joint |
| CN105030385A (en) * | 2015-08-27 | 2015-11-11 | 江苏奥康尼医疗科技发展有限公司 | All-organic high molecular material ankle joint prosthesis |
| CN110090096A (en) * | 2019-04-26 | 2019-08-06 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of bionical cooperation black box of high temporal shin bone-astragalus |
| CN111134908A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Bionic artificial interphalangeal joint |
| CN111134909A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Combined semi-limited multi-polar artificial wrist joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1979000739A1 (en) * | 1978-03-10 | 1979-10-04 | Biomedical Eng Corp | Improved joint endoprosthesis |
| US20040122523A1 (en) * | 2002-12-23 | 2004-06-24 | Guzman Jose F. | Mobile talar component for total ankle replacement implant |
| CN101325927A (en) * | 2005-12-12 | 2008-12-17 | 沃尔德马连接两合公司 | Endoprosthesis with intermediate part |
| CN202313810U (en) * | 2011-11-07 | 2012-07-11 | 黄国富 | Buffering surface type knee joint |
| CN203001181U (en) * | 2012-11-14 | 2013-06-19 | 黄国富 | Buffer type artificial ankle joint |
-
2012
- 2012-11-14 CN CN2012104562051A patent/CN102920536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1979000739A1 (en) * | 1978-03-10 | 1979-10-04 | Biomedical Eng Corp | Improved joint endoprosthesis |
| US20040122523A1 (en) * | 2002-12-23 | 2004-06-24 | Guzman Jose F. | Mobile talar component for total ankle replacement implant |
| CN101325927A (en) * | 2005-12-12 | 2008-12-17 | 沃尔德马连接两合公司 | Endoprosthesis with intermediate part |
| CN202313810U (en) * | 2011-11-07 | 2012-07-11 | 黄国富 | Buffering surface type knee joint |
| CN203001181U (en) * | 2012-11-14 | 2013-06-19 | 黄国富 | Buffer type artificial ankle joint |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598936A (en) * | 2013-10-21 | 2014-02-26 | 上海市第十人民医院 | Combined tumor-type ankle joint prosthesis |
| CN104887359A (en) * | 2015-06-29 | 2015-09-09 | 北京贝思达生物技术有限公司 | Artificial ankle joint |
| CN105030385A (en) * | 2015-08-27 | 2015-11-11 | 江苏奥康尼医疗科技发展有限公司 | All-organic high molecular material ankle joint prosthesis |
| CN111134908A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Bionic artificial interphalangeal joint |
| CN111134909A (en) * | 2018-11-06 | 2020-05-12 | 天津富华医疗科技有限公司 | Combined semi-limited multi-polar artificial wrist joint |
| CN110090096A (en) * | 2019-04-26 | 2019-08-06 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of bionical cooperation black box of high temporal shin bone-astragalus |
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Application publication date: 20130213 |