CN105078621A - Nickel-titanium alloy artificial total-wrist joint prosthesis with intramedullary barb - Google Patents
Nickel-titanium alloy artificial total-wrist joint prosthesis with intramedullary barb Download PDFInfo
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- CN105078621A CN105078621A CN201510602315.8A CN201510602315A CN105078621A CN 105078621 A CN105078621 A CN 105078621A CN 201510602315 A CN201510602315 A CN 201510602315A CN 105078621 A CN105078621 A CN 105078621A
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Abstract
The invention discloses a nickel-titanium alloy artificial total-wrist joint prosthesis with an intramedullary barb, wherein the joint prosthesis comprises a medullary cavity fixing body and a hemispherical connecting body; both the medullary cavity fixing body and the hemispherical connecting body are made from memory alloy; the medullary cavity fixing body comprises two memory alloy sheets with front ends connected; a hemispherical groove is formed in the joint of the front ends of the two memory alloy sheets; a plurality of fins are cut and thermo-extruded on the two memory alloy sheets; the hemispherical surface of the hemispherical connecting body is accommodated inside the hemispherical groove; a first nail, a third metacarpal bone fixing body and a second nail are fixedly arranged at the front end of the hemispherical connecting body; a plurality of barbed bumps are cut and thermo-extruded in the side face of the third metacarpal bone fixing body; through slots are cut in the first nail and the second nail; semilunar bone and sulcus bone of a human body are fixedly connected to the first nail; and scaphoid bone and trapezoid bone of the human body are fixedly connected to the second nail. The artificial total-wrist joint prosthesis, which is made from nickel-titanium alloy, is firm in installation and is good in stability.
Description
Technical field
The present invention relates to medical instruments field, specifically the artificial full carpal joint prosthese of a kind of Nitinol with agnail in marrow.
Background technology
The patient of the carpal joint pain that artificial full carpal joint prosthese is mainly used in various wound, autoimmune disease, degeneration cause, deformity, afunction, especially arthropathy is involved to the patient in multiple joint, carpal joint major part function can be retrieved, reduce disability rate, improve patients ' life quality.Carpal joint be in human body very flexibly and the most complicated joint, the function played in daily life is maximum.The normal accumulation carpal joint of the immune diseases such as rheumatic arthritis, wound and Working Life apply the damage that the degeneration excessively caused all can cause carpal joint serious.And full carpal joint integration technology general at present can make patient lose almost whole carpal function, especially patient's afunction rate in multiple joint accumulated for pathological changes higher.Full wrist displacement can retain most of carpal function, thoroughly solves the pain of patient and lopsided problem.
Domestic and international patent consulting result display, there is no a kind of full carpal joint prosthetic material is at present using memory metal, and existing full carpal joint prosthese is after carrying out full wrist displacement, and prosthetic loosening rate, unstability, fracture probability are high.Since the artificial full carpal joint application of the first generation, exceeded half a century so far, it is the main factor limiting its development that artificial joint is stablized with persistency always.And patient requires day by day to improve for wrist joint function.Therefore, when current prosthese still can not provide good stability, persistency and provide carpal joint good function, carry out design and the invention of the full carpal joint prosthese of novel artificial, patient can be provided better therapeutic modality, alleviate patient suffering, reduce patient's deformity, disabled probability, greatly improve the quality of life of patient.
Summary of the invention
The object of the present invention is to provide the artificial full carpal joint prosthese of a kind of Nitinol with agnail in marrow, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
The artificial full carpal joint prosthese of Nitinol with agnail in marrow, comprise pulp cavity fixed body and hemispherical connector, described pulp cavity fixed body and hemispherical connector are made by memorial alloy, described pulp cavity fixed body is fixed in the pulp cavity of human body, pulp cavity fixed body comprises two pieces of shape memory alloys that front end is connected, the junction, front end of two pieces of shape memory alloys forms the hemispherical groove matched with hemispherical connector, two pieces of shape memory alloys form cylindrical shape through bound edge process, and on two pieces of shape memory alloys all cutting and thermoplastic goes out multiple fin, fin is towards the front end of pulp cavity fixed body, the hemisphere face of described hemispherical connector holds with in hemispherical groove, described hemispherical connector front end is fixedly installed the first screw, metacarpal bone,middle fixed body and the second screw, described first screw, metacarpal bone,middle fixed body and the second screw are made by memorial alloy, and described first screw and second screw the first half are provided with gap, described metacarpal bone,middle fixed body is fixed in the metacarpal bone,middle of human body, metacarpal bone,middle fixed body is cylindrical shape, and cylinder sides cutting and thermoplastic has multiple barb-shaped protruding, the protruding rear end towards metacarpal bone,middle fixed body of barb-shaped, described first screw and the second screw are all cut with groove along its length, two grooves extend to rear portion from the front end of the first screw and the second screw respectively, first screw is fixedly connected with lunar and the ditch bone of human body, and the second screw is fixedly connected with scaphoid bone and the trapezoid bone of human body.
As the further scheme of the present invention: described memorial alloy is Ultimum Ti.
As the present invention's further scheme: the angle between described fin and shape memory alloy is 30-40 °.
As the present invention's further scheme: each shape memory alloy is provided with four row fins.
Compared with prior art, the invention has the beneficial effects as follows: 1, this installation firmly and the artificial full carpal joint prosthese of good stability be made up of Ultimum Ti, combined with the memory characteristic of material by structure, install firmly, good stability, and possess good wrist joint function, alleviate patient suffering, reduce patient's deformity, disabled probability, greatly improve the quality of life of patient; 2, this installation firmly and the artificial full carpal joint prosthese of good stability be made up of Ultimum Ti, confirm through a large amount of clinical experience card and materialogy research experiment, nickel-titanium memory adds up to has good synergy with human body soft tissue, further increase the stability of prosthese, decrease the activity between each carpal bone and pressure load-bearing, ensure the stablizing effect of prosthese.
Accompanying drawing explanation
Fig. 1 installs firmly and the structural representation of the artificial full carpal joint prosthese of good stability.
In figure: 1-pulp cavity fixed body, 2-hemispherical connector, 3-fin, 4-hemispherical groove, 5-first screw, 6-metacarpal bone,middle fixed body, 7-second screw, 8-groove, 9-barb-shaped are protruding.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1, the artificial full carpal joint prosthese of Nitinol with agnail in marrow, comprise pulp cavity fixed body 1 and hemispherical connector 2, described pulp cavity fixed body 1 and hemispherical connector 2 are made by memorial alloy, preferably, described memorial alloy is Ultimum Ti, described pulp cavity fixed body 1 is fixed in the pulp cavity of human body, pulp cavity fixed body 1 comprises two pieces of shape memory alloys that front end is connected, the junction, front end of two pieces of shape memory alloys forms the hemispherical groove 4 matched with hemispherical connector 2, two pieces of shape memory alloys form cylindrical shape through bound edge process, and on two pieces of shape memory alloys all cutting and thermoplastic goes out multiple fin 3, fin 3 is towards the front end of pulp cavity fixed body 1, preferably, angle between described fin 3 and shape memory alloy is 30-40 °, each shape memory alloy is provided with four row fins 3, this pulp cavity fixed body 1, on its shape memory alloy cutting and thermoplastic goes out multiple fin 3, angle between fin 3 and shape memory alloy is 30-40 °, then pulp cavity fixed body 1 is carried out frozen water process, and all fins 3 are flattened, to facilitate, pulp cavity fixed body 1 is placed in the pulp cavity of human body, after pulp cavity fixed body 1 is implanted pulp cavity, fin 3 recovers normal shape gradually and tilts, the sidewall of the fin 3 pairs of pulp cavitys tilted produces the pressure strutted, and present " agnail " structure, pulp cavity fixed body 1 is avoided to get loose in pulp cavity, install firmly, the hemisphere face of described hemispherical connector 2 holds with in hemispherical groove 4, can freely rotate between the two, to ensure to retain most of carpal function after displacement, described hemispherical connector 2 front end is fixedly installed the first screw 5, metacarpal bone,middle fixed body 6 and the second screw 7, described first screw 5, metacarpal bone,middle fixed body 6 and the second screw 7 are made by memorial alloy, and described first screw 5 and second screw 7 the first half are provided with gap, first screw 5 and the second screw 7 and cold water treatment being tightened before using is gap hour, shape is recovered after implant into body, expand generation pressure, fixed effect is better, described metacarpal bone,middle fixed body 6 is fixed in the metacarpal bone,middle of human body, metacarpal bone,middle fixed body 6 is cylindrical shape, and cylinder sides cutting and thermoplastic has multiple barb-shaped projection 9, barb-shaped projection 9 is towards the rear end of metacarpal bone,middle fixed body 6, on metacarpal bone,middle fixed body 6 cutting and thermoplastic goes out multiple barb-shaped projection 9, then metacarpal bone,middle fixed body 6 is carried out frozen water process, and all barb-shaped protruding 9 are flattened, to facilitate, metacarpal bone,middle fixed body 6 is placed in the metacarpal bone,middle of human body, after metacarpal bone,middle fixed body 6 is implanted metacarpal bone,middle, barb-shaped projection 9 is recovered normal shape gradually and is tilted, and the pressure strutted is produced to the sidewall of pulp cavity, metacarpal bone,middle fixed body 6 is avoided to get loose in metacarpal bone,middle, install firmly, described first screw 5 and the second screw 7 are all cut with groove 8 along its length, two grooves 8 extend to rear portion from the front end of the first screw 5 and the second screw 7 respectively, first screw 5 is fixedly connected with lunar and the ditch bone of human body, second screw 7 is fixedly connected with scaphoid bone and the trapezoid bone of human body, before implantation, first screw 5 and the second screw 7 are carried out frozen water process, and mediate the shank of screw of the first screw 5 and the second screw 7, make the screw body of rod of groove 8 both sides close to each other, first screw 5 is fixedly connected with lunar and the ditch bone of human body, after the scaphoid bone that second screw 7 is fixedly connected with human body and trapezoid bone, first screw 5 and the second screw 7 recover normal shape gradually, the screw body of rod of groove 8 both sides mutually away from, the pressure strutted is produced to corresponding human body bone sidewall, the first screw 5 and the second screw 7 is avoided to get loose, install firmly.
Operation principle of the present invention is: described installation firmly and the artificial full carpal joint prosthese of good stability, before implant into body, first frozen water process is carried out to it, fins 3 all for pulp cavity fixed body 1 is flattened, to facilitate, pulp cavity fixed body 1 is placed in the pulp cavity of human body, all barb-shaped protruding 9 of metacarpal bone,middle fixed body 6 are flattened, to facilitate, metacarpal bone,middle fixed body 6 is placed in the metacarpal bone,middle of human body, mediate the shank of screw of the first screw 5 and the second screw 7, make the screw body of rod of groove 8 both sides close to each other.After frozen water is disposed, full wrist replacement operation is carried out to patient, pulp cavity fixed body 1 is placed in the pulp cavity of human body, metacarpal bone,middle fixed body 6 is placed in the metacarpal bone,middle of human body, first screw 5 is fixedly connected with lunar and the ditch bone of human body, and the second screw 7 is fixedly connected with scaphoid bone and the trapezoid bone of human body.After implantation, fin 3 on pulp cavity fixed body 1 recovers normal shape gradually and tilts, the sidewall of the fin 3 pairs of pulp cavitys tilted produces the pressure strutted, and present " agnail " structure, pulp cavity fixed body 1 is avoided to get loose in pulp cavity, barb-shaped projection 9 on metacarpal bone,middle fixed body 6 is recovered normal shape gradually and is tilted, and the pressure strutted is produced to the sidewall of pulp cavity, metacarpal bone,middle fixed body 6 is avoided to get loose in metacarpal bone,middle, first screw 5 and the second screw 7 recover normal shape gradually, the screw body of rod of groove 8 both sides mutually away from, the pressure strutted is produced to corresponding human body bone sidewall, the first screw 5 and the second screw 7 is avoided to get loose.
Described installation firmly and the artificial full carpal joint prosthese of good stability be made up of Ultimum Ti, combined with the memory characteristic of material by structure, install firmly, good stability, and possess good wrist joint function, alleviate patient suffering, reduce patient's deformity, disabled probability, greatly improve the quality of life of patient; Described installation firmly and the artificial full carpal joint prosthese of good stability be made up of Ultimum Ti, confirm through a large amount of clinical experience card and materialogy research experiment, nickel-titanium memory adds up to has good synergy with human body soft tissue, further increase the stability of prosthese, decrease the activity between each carpal bone and pressure load-bearing, ensure the stablizing effect of prosthese.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (4)
1., with the artificial full carpal joint prosthese of Nitinol of agnail in marrow, it is characterized in that, comprise pulp cavity fixed body (1) and hemispherical connector (2), described pulp cavity fixed body (1) and hemispherical connector (2) are made by memorial alloy, described pulp cavity fixed body (1) is fixed in the pulp cavity of human body, pulp cavity fixed body (1) comprises two pieces of shape memory alloys that front end is connected, the junction, front end of two pieces of shape memory alloys forms the hemispherical groove (4) matched with hemispherical connector (2), two pieces of shape memory alloys form cylindrical shape through bound edge process, and on two pieces of shape memory alloys all cutting and thermoplastic goes out multiple fin (3), fin (3) is towards the front end of pulp cavity fixed body (1), the hemisphere face of described hemispherical connector (2) holds with in hemispherical groove (4), described hemispherical connector (2) front end is fixedly installed the first screw (5), metacarpal bone,middle fixed body (6) and the second screw (7), described first screw (5), metacarpal bone,middle fixed body (6) and the second screw (7) are made by memorial alloy, and described first screw (5) and the second screw (7) the first half are provided with gap, described metacarpal bone,middle fixed body (6) is fixed in the metacarpal bone,middle of human body, metacarpal bone,middle fixed body (6) is cylindrical shape, and cylinder sides cutting and thermoplastic has multiple barb-shaped projection (9), barb-shaped projection (9) is towards the rear end of metacarpal bone,middle fixed body (6), described first screw (5) and the second screw (7) are all cut with groove (8) along its length, two grooves (8) extend to rear portion from the front end of the first screw (5) and the second screw (7) respectively, first screw (5) is fixedly connected with lunar and the ditch bone of human body, and the second screw (7) is fixedly connected with scaphoid bone and the trapezoid bone of human body.
2. installation according to claim 1 firmly and the artificial full carpal joint prosthese of good stability, and it is characterized in that, described memorial alloy is Ultimum Ti.
3. installation according to claim 1 and 2 firmly and the artificial full carpal joint prosthese of good stability, and it is characterized in that, the angle between described fin (3) and shape memory alloy is 30-40 °.
4. installation according to claim 3 firmly and the artificial full carpal joint prosthese of good stability, and it is characterized in that, each shape memory alloy is provided with four row fins (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510602315.8A CN105078621B (en) | 2015-09-21 | 2015-09-21 | A kind of Nitinol with agnail in marrow manually full carpal joint prosthese |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510602315.8A CN105078621B (en) | 2015-09-21 | 2015-09-21 | A kind of Nitinol with agnail in marrow manually full carpal joint prosthese |
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| Publication Number | Publication Date |
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| CN105078621A true CN105078621A (en) | 2015-11-25 |
| CN105078621B CN105078621B (en) | 2017-03-01 |
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| CN201510602315.8A Expired - Fee Related CN105078621B (en) | 2015-09-21 | 2015-09-21 | A kind of Nitinol with agnail in marrow manually full carpal joint prosthese |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073955A (en) * | 2016-06-08 | 2016-11-09 | 李川 | A kind of high abrasion interphalangeal joint prosthese of stable connection |
| CN106691634A (en) * | 2016-11-18 | 2017-05-24 | 徐永清 | Wrist joint prosthesis with titanium alloy locking plates |
| CN110013362A (en) * | 2019-04-26 | 2019-07-16 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of high flexibility ratio is bionical all referring to joint replacement part |
| CN110013363A (en) * | 2019-04-26 | 2019-07-16 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of bionical half articulations digitorum manus Replacement Part of high flexibility ratio |
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| CN104720938A (en) * | 2015-04-09 | 2015-06-24 | 徐永清 | Artificial total wrist joint prosthesis made of nickel-titanium memory metal |
| CN205041571U (en) * | 2015-09-21 | 2016-02-24 | 徐永清 | Artifical full wrist joint prosthesis of nickel titanium alloy with barb in marrow |
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- 2015-09-21 CN CN201510602315.8A patent/CN105078621B/en not_active Expired - Fee Related
Patent Citations (11)
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| DE69205935T2 (en) * | 1991-09-12 | 1996-04-25 | Tornier Sa | Prosthetic wrist. |
| EP0749735A1 (en) * | 1995-06-21 | 1996-12-27 | Sulzer Orthopädie AG | Artificial hand joint |
| DE69917011T2 (en) * | 1997-12-31 | 2004-09-02 | Biomet Merck France | wrist prosthesis |
| US20140288660A1 (en) * | 2003-07-22 | 2014-09-25 | Avanta Orthopaedics, Llc | Prosthetic Wrist Implant |
| US20070225820A1 (en) * | 2003-12-23 | 2007-09-27 | Ascension Orthopedics, Inc. | Total wrist prosthesis |
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| CN203524812U (en) * | 2013-09-11 | 2014-04-09 | 徐永清 | External clamping and fixing type high-functionality artificial wrist joint prosthesis device |
| CN104473685A (en) * | 2014-11-07 | 2015-04-01 | 周汝寿 | Intra-fixing nail for repairing intra-articular cartilage fracture of human body |
| CN104720938A (en) * | 2015-04-09 | 2015-06-24 | 徐永清 | Artificial total wrist joint prosthesis made of nickel-titanium memory metal |
| CN205041571U (en) * | 2015-09-21 | 2016-02-24 | 徐永清 | Artifical full wrist joint prosthesis of nickel titanium alloy with barb in marrow |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073955A (en) * | 2016-06-08 | 2016-11-09 | 李川 | A kind of high abrasion interphalangeal joint prosthese of stable connection |
| CN106691634A (en) * | 2016-11-18 | 2017-05-24 | 徐永清 | Wrist joint prosthesis with titanium alloy locking plates |
| CN110013362A (en) * | 2019-04-26 | 2019-07-16 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of high flexibility ratio is bionical all referring to joint replacement part |
| CN110013363A (en) * | 2019-04-26 | 2019-07-16 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of bionical half articulations digitorum manus Replacement Part of high flexibility ratio |
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| Publication number | Publication date |
|---|---|
| CN105078621B (en) | 2017-03-01 |
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