CN112378634B - Special frock of artifical knee joint prosthesis constraining force test - Google Patents
Special frock of artifical knee joint prosthesis constraining force test Download PDFInfo
- Publication number
- CN112378634B CN112378634B CN202011252883.7A CN202011252883A CN112378634B CN 112378634 B CN112378634 B CN 112378634B CN 202011252883 A CN202011252883 A CN 202011252883A CN 112378634 B CN112378634 B CN 112378634B
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- knee joint
- plate
- artificial knee
- femoral condyle
- adjusting seat
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 210000002303 tibia Anatomy 0.000 claims description 8
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 210000000689 upper leg Anatomy 0.000 claims 2
- 210000001694 thigh bone Anatomy 0.000 abstract description 13
- 238000011056 performance test Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 6
- 239000002639 bone cement Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a special tool for testing constraint force of an artificial knee joint prosthesis, which is characterized in that: the thighbone condyle adjusts the seat both ends and installs through locking bolt and take the seat bearing to install in the mounting hole on the curb plate, both ends all are provided with the gag lever post about the thighbone condyle adjusts the seat, the curb plate medial surface is equipped with arc spacing groove and gag lever post and is located the spacing inslot, adjust the bolt and install in the screw hole on the curb plate lateral surface and adjust the terminal buckle of bolt on the gag lever post, artifical knee joint thighbone condyle is installed to the below of thighbone condyle adjusting seat, the below of artifical knee joint thighbone condyle is connected with artifical knee joint liner, artifical knee joint liner is installed on the stand and the bottom of stand is fixed with the tibiobone support base. The invention has compact structure and stable and reliable work, can meet the requirements of different buckling angles in the constraint performance test of the artificial knee joint prosthesis, is convenient for fixing and limiting the angle, is convenient for aligning the upper part and the lower part of the tool, and avoids influencing the test.
Description
Technical Field
The invention belongs to the technical field of artificial knee joint prostheses, and particularly relates to a special tool for testing constraint force of an artificial knee joint prosthesis.
Background
In order to bring good news to patients with congenital or acquired disabilities at the legs and enable the patients to have the ability of walking again in a standing mode, people continuously seek to continuously break through the artificial knee joint prosthesis manufacturing technology so as to benefit the mankind, and a special tool is required to be used in the artificial knee joint prosthesis constraint force testing process;
however, the common artificial knee joint prosthesis in the market cannot meet the requirements for different bending angles in the constraint performance test of the artificial knee joint prosthesis, and is inconvenient to fix and limit the angle, and the alignment of the upper part and the lower part of the tool is inconvenient, so that the test is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a special tool for testing the constraint force of the artificial knee joint prosthesis, which has a compact structure and stable and reliable work, can meet the requirements on different buckling angles in the constraint performance test of the artificial knee joint prosthesis, is convenient for fixing and limiting the angle, is convenient for aligning the upper part and the lower part of the tool and avoids influencing the test.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a special frock of about force test of artifical knee joint prosthesis which characterized in that: the adjustable femoral condyle fixing device comprises a top plate, side plates, locking bolts, pin inserting plates, a femoral condyle adjusting seat, a limiting rod, limiting grooves, adjusting pins, an artificial knee joint femoral condyle, an artificial knee joint liner, a stand column, a tibial tray base, a traveling wheel, a mounting plate, a fixing plate, a stop rod and a reset spring, wherein the two side plates are fixedly mounted on the bottom surface of the top plate, two ends of the femoral condyle adjusting seat are provided with a bearing with a seat through the locking bolts and the bearing with the seat is mounted in a mounting hole on the side plate, the inner side of the side plate on the right side is provided with the pin inserting plate, the left end and the right end of the femoral condyle adjusting seat are provided with the limiting rods, the inner side surfaces of the side plates are provided with arc limiting grooves, the limiting rods are positioned in the limiting grooves, a plurality of threaded holes are arranged on the outer side surfaces of the side plates, the adjusting pins are mounted in the threaded holes on the outer side surfaces of the side plates and the adjusting pins are buckled on the limiting rods in the ends, the below of thighbone condyle adjusting seat install artifical knee joint thighbone condyle, the below of artifical knee joint thighbone condyle be connected with artifical knee joint liner, artifical knee joint liner install on the stand and the bottom of stand is fixed with the shin bone and holds in the palm the base, the below of shin bone support base install the walking wheel, the walking wheel install in the arc guide slot on the mounting panel, fixed plate fixed mounting on the left surface of mounting panel and the internally mounted of fixed plate have a locking lever, the locking lever on install reset spring.
The top plate and the side plates are connected through bolts, and the side plates are arranged in bilateral symmetry relative to the central axis of the top plate.
The pin inserting plate is fixedly connected with the side plate through a locking bolt.
The femoral condyle adjusting seat and the inner side of the side plate form a rotating structure, and the femoral condyle adjusting seat is welded and fixed with the limiting rod.
The outer side of the limiting groove is provided with a hole-shaped structure, and the hole-shaped structure is arranged at equal angles inside the bottom end of the side plate.
The tibia support base forms a rotating structure above the mounting plate, and hole-shaped structures are distributed in the fixing plate at equal angles.
The use method of the invention is as follows: the user firstly draws out the adjusting pin from the inside of the side plate, manually rotates the femoral condyle adjusting seat, enables the artificial knee joint liner embedded with a test sample in the upright post by using bone cement to mutually collide and extrude with the femoral condyle of the artificial knee joint fixed by the bone cement on the femoral condyle adjusting seat, improves the rotational stability of the femoral condyle adjusting seat by rotating the femoral condyle adjusting seat rotating by taking the locking bolt as the center and under the action of the limiting groove with the arc-shaped longitudinal section, thereby facilitating the adjustment of the buckling angle, meeting the requirements of different buckling angles in the artificial knee joint prosthesis constraint performance test, facilitating the test, inserts the adjusting pin into the hole-shaped structure corresponding to the angle of the femoral condyle adjusting seat at the bottom of the side plate after the femoral condyle adjusting seat is adjusted to a proper angle, and manually rotates the adjusting pin to enable the adjusting pin to slide and be connected with the limiting rod in a clamping way, thereby fix spacingly to the angle of thighbone condyle adjusting seat to in the installation of this special frock and use, upwards mention the locking lever through manual, make it break away from with the fixed plate, thereby can rotate the shin bone and hold in the palm the base, make things convenient for the alignment of frock upper and lower part, the test of being convenient for, and be convenient for to the watching of test result, and through the setting of walking wheel, can improve the shin bone and hold in the palm the base and at mounting panel top pivoted stability.
The invention has the advantages that:
(1) the limiting rod and the limiting groove are arranged, under the action of the side plates which are arranged in bilateral symmetry about the central axis of the top plate, stable installation and rotation of the femoral condyle adjusting seat are facilitated, and in the process of rotating the femoral condyle adjusting seat and the limiting rod, under the action of the limiting groove which is arranged in a circular arc structure on the longitudinal section of the outer side of the limiting rod, the rotation stability of the femoral condyle adjusting seat is improved, and the requirements of different buckling angles in the constraint performance test of the artificial knee joint prosthesis can be met;
(2) the adjusting pin is connected with the side plate in a threaded manner, so that the adjusting pin can slide inside the side plate and is clamped and connected with the limiting rod, and the angle between the limiting rod and the femoral condyle adjusting seat is fixed and limited;
(3) the special tool is provided with the walking wheels and the stop rods, and the stop rods are lifted upwards manually in the installation and test processes of the special tool to be separated from the fixing plate, so that the tibial tray base is controlled to rotate above the installation plate stably under the action of the walking wheels, the alignment of the upper part and the lower part of the tool is facilitated, and the test is prevented from being influenced by the relative offset of the upper part and the lower part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the femoral condyle adjusting seat and the limiting rod of the present invention;
FIG. 3 is a schematic view of the connection structure of the side plate and the stop lever according to the present invention;
FIG. 4 is a front view of the fixing plate and the stopper rod according to the present invention;
fig. 5 is a top view of the structure of the road wheel and mounting plate connection of the present invention.
Wherein the reference numerals are: the artificial knee joint comprises a top plate 1, a side plate 2, a locking bolt 3, a pin inserting plate 4, a femoral condyle adjusting seat 5, a limiting rod 6, a limiting groove 7, an adjusting pin 8, an artificial knee joint femoral condyle 9, an artificial knee joint liner 10, a stand column 11, a tibial base 12, a walking wheel 13, a mounting plate 14, a fixing plate 15, a stop rod 16 and a reset spring 17.
Detailed Description
The following further describes embodiments of the present invention in conjunction with the attached figures:
the utility model provides a special frock of about force test of artifical knee joint prosthesis which characterized in that: comprises a top plate 1, side plates 2, locking bolts 3, a pin inserting plate 4, a femoral condyle adjusting seat 5, a limiting rod 6, a limiting groove 7, an adjusting pin 8, a femoral condyle of artificial knee joint 9, an artificial knee joint liner 10, a stand column 11, a tibial tray base 12, a walking wheel 13, a mounting plate 14, a fixing plate 15, a stop rod 16 and a reset spring 17, wherein the two side plates 2 are fixedly mounted on the bottom surface of the top plate 1, the two ends of the femoral condyle adjusting seat 5 are provided with a bearing with a seat through the locking bolts 3 and the bearing with the seat is mounted in a mounting hole on the side plate 2, the pin inserting plate 4 is mounted on the inner side of the side plate 2 on the right side, the limiting rods 6 are arranged at the left and right ends of the femoral condyle adjusting seat 5, the inner side surface of the side plate 2 is provided with an arc-shaped limiting groove 7, the limiting rod 6 is positioned in the limiting groove 7, a plurality of threaded holes are arranged at the position on the outer side surface of the side plate 2, which is positioned in the limiting groove 7, adjust the bolt 8 and install in the screw hole on 2 lateral surfaces of curb plate and adjust 8 terminal buckles of bolt on gag lever post 6, thighbone condyle adjust the below of seat 5 and install artifical knee joint thighbone condyle 9, the below of artifical knee joint thighbone condyle 9 be connected with artifical knee joint liner 10, artifical knee joint liner 10 install on stand 11 and the bottom of stand 11 is fixed with shin bone and holds in the palm base 12, the shin bone hold in the palm the below of base 12 and install walking wheel 13, walking wheel 13 install in the arc guide slot on mounting panel 14, fixed plate 15 fixed mounting on the left surface of mounting panel 14 and the internally mounted of fixed plate 15 have stop lever 16, stop lever 16 on install reset spring 17.
In the embodiment, the top plate 1 and the side plates 2 are connected by bolts, and the side plates 2 are arranged symmetrically left and right about the central axis of the top plate 1.
In the exemplary embodiment, the pin plate 4 is fixedly connected to the side plate 2 by means of a locking bolt 3. Make things convenient for the stable installation of thighbone condyle adjusting seat 5, and can improve its rotational stability.
In the embodiment, the femoral condyle adjusting seat 5 and the inner side of the side plate 2 form a rotating structure, and the femoral condyle adjusting seat 5 and the limiting rod 6 are welded and fixed. The requirements on different buckling angles in the constraint performance test of the artificial knee joint prosthesis can be met.
In the embodiment, the outer side of the limiting groove 7 is provided with a hole-shaped structure, and the hole-shaped structure is arranged at an equal angle inside the bottom end of the side plate 2. The rotation stability of the limiting rod 6 and the femoral condyle adjusting seat 5 is conveniently improved, and the angle of the femoral condyle adjusting seat 5 is conveniently fixed and limited.
In the embodiment, the tibial tray base 12 forms a rotating structure above the mounting plate 14, and holes are distributed in the fixing plate 15 at equal angles. The alignment of the upper part and the lower part of the tool is facilitated, and the influence on the test is avoided.
By adopting the technical scheme, a user firstly extracts the adjusting pin 8 from the inside of the side plate 2, manually rotates the femoral condyle adjusting seat 5, enables the artificial knee joint liner 10 embedded with a test sample by using bone cement in the upright post 11 to collide and extrude with the femoral condyle 9 of the artificial knee joint fixed by the bone cement on the femoral condyle adjusting seat 5, improves the rotational stability of the femoral condyle adjusting seat 5 by rotating the femoral condyle adjusting seat 5 which rotates by taking the locking bolt 3 as the center and under the action of the limiting groove 7 with the arc-shaped longitudinal section, thereby conveniently adjusting the buckling angle, meeting the requirements of different buckling angles in the constraint performance test of the artificial knee joint prosthesis, conveniently testing, and inserts the adjusting pin 8 into the hole-shaped structure corresponding to the angle of the femoral condyle adjusting seat 5 at the bottom of the side plate 2 after the femoral condyle adjusting seat 5 is adjusted to a proper angle, and manually rotate and adjust the pin 8, make it slide and connect with 6 block of gag lever post, thus fix the spacing to the angle of the adjustment seat of femoral condyle 5, and in the installation and use of this special frock, through manually lifting up the locking lever 16, make it break away from with fixed plate 15, thus can rotate the tibial tray base 12, make things convenient for the alignment of upper and lower part of frock, the test of being convenient for, and the observation to the test result of being convenient for, and through the setting of walking wheel 13, can improve the tibial tray base 12 and rotate the stability above mounting panel 14.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (6)
1. The utility model provides a special frock of about force test of artifical knee joint prosthesis which characterized in that: comprises a top plate (1), side plates (2), locking bolts (3), pin inserting plates (4), a femoral condyle adjusting seat (5), a limiting rod (6), a limiting groove (7), an adjusting pin (8), an artificial knee joint femoral condyle (9), an artificial knee joint liner (10), a stand column (11), a tibial tray base (12), a walking wheel (13), a mounting plate (14), a fixing plate (15), a stop rod (16) and a reset spring (17), wherein the two side plates (2) are fixedly mounted on the bottom surface of the top plate (1), two ends of the femoral condyle adjusting seat (5) are provided with a bearing with a seat through the locking bolts (3) and are mounted in mounting holes on the side plates (2), the pin inserting plates (4) are mounted on the inner side of the side plate (2) on the right side, the limiting rods (6) are arranged at the left end and the right end of the femoral condyle adjusting seat (5), the inner side surface of the side plate (2) is provided with an arc-shaped limiting groove (7), the limiting rod (6) is positioned in the limiting groove (7), a plurality of threaded holes are formed in the position, positioned in the limiting groove (7), of the outer side surface of the side plate (2), the adjusting pin (8) is installed in a threaded hole in the outer side surface of the side plate (2) and the tail end of the adjusting pin (8) is buckled on the limiting rod (6), an artificial knee joint femoral condyle (9) is installed below the femoral condyle adjusting seat (5), an artificial knee joint liner (10) is connected below the artificial knee joint femoral condyle (9), the artificial knee joint liner (10) is installed on a stand column (11), a tibial tray base (12) is fixed at the bottom of the stand column (11), a walking wheel (13) is installed below the tibial tray base (12), and the walking wheel (13) is installed in an arc-shaped guide groove on the installing plate (14), fixed plate (15) fixed mounting on the left surface of mounting panel (14) and the internally mounted of fixed plate (15) have stop lever (16), stop lever (16) on install reset spring (17).
2. The special tool for testing the constraining force of the artificial knee joint prosthesis according to claim 1, is characterized in that: roof (1) and curb plate (2) adopt bolted connection and curb plate (2) set up about the axis bilateral symmetry of roof (1).
3. The special tool for testing the constraining force of the artificial knee joint prosthesis according to claim 1, is characterized in that: the pin-out plate (4) is fixedly connected with the side plate (2) through a locking bolt (3).
4. The special tool for testing the constraining force of the artificial knee joint prosthesis according to claim 1, is characterized in that: the femur condyle adjusting seat (5) and the inner side of the side plate (2) form a rotating structure, and the femur condyle adjusting seat (5) and the limiting rod (6) are welded and fixed.
5. The special tool for testing the constraining force of the artificial knee joint prosthesis according to claim 1, is characterized in that: the outer side of the limiting groove (7) is provided with a hole-shaped structure, and the hole-shaped structure is arranged at equal angles in the bottom end of the side plate (2).
6. The special tool for testing the constraining force of the artificial knee joint prosthesis according to claim 1, is characterized in that: the tibia support base (12) forms a rotating structure above the mounting plate (14), and hole-shaped structures are distributed in the fixing plate (15) at equal angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252883.7A CN112378634B (en) | 2020-11-11 | 2020-11-11 | Special frock of artifical knee joint prosthesis constraining force test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011252883.7A CN112378634B (en) | 2020-11-11 | 2020-11-11 | Special frock of artifical knee joint prosthesis constraining force test |
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| Publication Number | Publication Date |
|---|---|
| CN112378634A CN112378634A (en) | 2021-02-19 |
| CN112378634B true CN112378634B (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011252883.7A Active CN112378634B (en) | 2020-11-11 | 2020-11-11 | Special frock of artifical knee joint prosthesis constraining force test |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115655858B (en) * | 2022-11-01 | 2025-08-19 | 北京市春立正达医疗器械股份有限公司 | Tibia gasket locking experiment tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090056519A (en) * | 2007-11-30 | 2009-06-03 | 대한민국 (식품의약품안전청장) | Artificial knee joint test jig |
| CN101561358A (en) * | 2009-05-14 | 2009-10-21 | 上海交通大学 | Artificial knee joint prosthesis simulated motion tester |
| CN102680344A (en) * | 2012-05-07 | 2012-09-19 | 北京航空航天大学 | Six-degree-of-freedom parallel and oscillating guide bar mechanism combined knee-replacing prosthesis abrasion tester |
| CN102687183A (en) * | 2009-11-09 | 2012-09-19 | 先进机械技术公司 | System and method for joint motion simulation |
| CN109465764A (en) * | 2018-09-13 | 2019-03-15 | 嘉思特华剑医疗器材(天津)有限公司 | Single-compartment knee joint prosthesis tibial plateau clamp and fatigue testing device |
-
2020
- 2020-11-11 CN CN202011252883.7A patent/CN112378634B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090056519A (en) * | 2007-11-30 | 2009-06-03 | 대한민국 (식품의약품안전청장) | Artificial knee joint test jig |
| CN101561358A (en) * | 2009-05-14 | 2009-10-21 | 上海交通大学 | Artificial knee joint prosthesis simulated motion tester |
| CN102687183A (en) * | 2009-11-09 | 2012-09-19 | 先进机械技术公司 | System and method for joint motion simulation |
| CN102680344A (en) * | 2012-05-07 | 2012-09-19 | 北京航空航天大学 | Six-degree-of-freedom parallel and oscillating guide bar mechanism combined knee-replacing prosthesis abrasion tester |
| CN109465764A (en) * | 2018-09-13 | 2019-03-15 | 嘉思特华剑医疗器材(天津)有限公司 | Single-compartment knee joint prosthesis tibial plateau clamp and fatigue testing device |
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| CN112378634A (en) | 2021-02-19 |
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