CN202837091U - Biomechanics test fixture for proximal femur torsions - Google Patents
Biomechanics test fixture for proximal femur torsions Download PDFInfo
- Publication number
- CN202837091U CN202837091U CN201220484980.3U CN201220484980U CN202837091U CN 202837091 U CN202837091 U CN 202837091U CN 201220484980 U CN201220484980 U CN 201220484980U CN 202837091 U CN202837091 U CN 202837091U
- Authority
- CN
- China
- Prior art keywords
- box body
- bolt
- biomechanics
- thighbone
- slide bar
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a biomechanics test fixture for proximal femur torsions and belongs to a device for testing strength characteristics of a solid material by mechanical stress. The biomechanics test fixture comprises a rectangular box body, wherein an opening inject port is arranged on the bottom surface of the box body; a clamping handle combined with a biomechanics testing machine is vertically formed on the top surface of the box body along the length direction; one side of a side-push plate and one end of an end clamp plate arranged in the box body are respectively and fixedly connected with one ends of a plurality of elastic sliding rods passing through a plurality of sliding holes, and are slidingly connected with one end of a bolt combined with a screw hole; and the other end of the box body penetrates through one bolt. In this way, a proximal femur part is firmly fixed in the box body and cannot rotate relative to the box body, and the structure and characteristic of the proximal femur are not damaged, so that an experiment in mechanics is more precise; and the proximal femur does not need being embedded by PMMA (polymethyl methacrylate), following experiments are not affected and the fixture, and the fixture is convenient to dismount and mount.
Description
Technical field
The utility model relates to the device with mechanical stress test solid material strength characteristics, specifically the biomechanics detection clamp that reverses of a kind of near end of thighbone.
Background technology
Under the femoral trochanter that causes along with the contour violence of traffic injury damage, femoral shaft and supracondylar fracture of femur be more and more.The methods of internal fixation for the treatment of these position fracture is varied, and the good biomechanics experiment that needs of the biomechanical property between fixing in these proves, has wherein just comprised the biomechanics experiment that reverses of femur.The method that traditional resected femur near-end carries out torsion test has near end of thighbone punches, the two ends of the thick Kirschner wire by fixedly passing this hole are reversed, perhaps near end of thighbone is carried out polymethylmethacrylate (PMMA) embedding, reverse by the grip shank of embedding jig again.The sclerotin of the near end of thighbone that the former destroys, and the latter has affected the mechanical property of near end of thighbone to the near end of thighbone embedding, and can not dismantle.
The utility model content
The purpose of this utility model is neither femur to be damaged, and does not affect again the mechanical property of near end of thighbone, and carries out the femoral torsion biomechanics experiment under the prerequisite for convenience detach, and the biomechanics detection clamp that provides a kind of near end of thighbone to reverse.
The utility model is realized according to following technical scheme.
The biomechanics detection clamp that a kind of near end of thighbone reverses, comprise the oblong-shaped box body, and be open injection port at box bottom, the end face elongatedness perpendicular direction of box body is formed with the grip shank of being combined with the biomechanics testing machine, a side side guide that arranges in the box body is fixedly connected with most elasticity slide bar one ends that run through most slide openings respectively with an end end clamp plate, and be slidingly connected with bolt one end in conjunction with screw, the box body other end runs through 1 support bolt.
Advantage of the present utility model:
1. in box body on three of a side and both ends of the surface directions, femoral head neck and the greater trochanter of near end of thighbone are clamped between the bolt of side guide, end clamp plate and other end, near end of thighbone is partly fixedly secured among box body, and near end of thighbone can not be rotated with respect to box body.
2. structure and the characteristic of near end of thighbone do not damaged, make Experiments of Machanics more accurate.
3. not needing does not affect the carrying out of subsequent experimental near end of thighbone PMMA embedding, and makes things convenient for the dismounting of jig.
Description of drawings
Fig. 1 is the perspective view of looking up of the present utility model;
Fig. 2 is how structural representation of the utility model;
Fig. 3 is forward sight surface structure schematic diagram of the present utility model;
Fig. 4 is the structure for amplifying schematic diagram of A section among Fig. 3;
Fig. 5 is backsight surface structure schematic diagram of the present utility model.
Among the figure: 1. box body 2. injection ports
3. grip shank 4. side guides
5. end clamp plate 6. screws
7. slide opening 8. elasticity slide bars
9. bolt 10. knobs
11. slide bar 12. springs
13. packing ring 14. nuts.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described, this explanation is in order to make those of ordinary skill in the art understand better the present invention but is not limited to this majority screw 6 and invention.
The elasticity slide bar 8, bolt 9 structures that relate to most in the accompanying drawing are identical, and knob 10 structures of bolt 9 other ends are identical, use identical Reference numeral.
The biomechanics detection clamp that a kind of near end of thighbone reverses, comprise oblong-shaped box body 1, and be open injection port 2 in box body 1 bottom surface, the end face elongatedness perpendicular direction of box body 1 is formed with the grip shank 3 of being combined with the biomechanics testing machine, one side side guide 4 of box body 1 interior setting is fixedly connected with most elasticity slide bar 8 one ends that run through most slide openings 7 with an end end clamp plate 5, and be slidingly connected the bolt 8 that it is knob 10 that box body 1 other end runs through 1 outside with bolt 9 one ends in conjunction with screw 6.
The biomechanics detection clamp that described near end of thighbone reverses, a side side guide 4 is rectangular in its box body 1, and four jiaos of side guide 4 connect respectively the bolt 9 that the other end is knob 10, and side guide 4 four limit mid points connect respectively elasticity slide bar 8.
The biomechanics detection clamp that described near end of thighbone reverses, an end end clamp plate 5 is rectangular in its box body 1, and it is the bolt 9 of knob 10 that end clamp plate 5 centers connect the outer other end of 1 box, and bolt 9 both sides of end clamp plate 5 connect respectively elasticity slide bar 8.
The biomechanics detection clamp that described near end of thighbone reverses, the width of its end clamp plate 5 are 1/2 of box body 1 end face width, and the bolt 8 that is connected with end clamp plate 5, the elasticity slide bar 8 of both sides and grip shank 3 are arranged on the same straight line, and the another side of close box body 1.
The biomechanics detection clamp that described near end of thighbone reverses, its elasticity slide bar 8 comprises the slide bar 9 that an end is connected with side guide 4 or end clamp plate 5, slide bar 11 pocketed springs 12 of box body 1 outside and packing ring 13 and the nut 14 that restraining spring 12 is deviate from.
The biomechanics detection clamp that described near end of thighbone reverses, it is beneficial to side guide 4 or end clamp plate 5 in box body 1 interior inclination for adapting to the irregularly shaped of near end of thighbone, and slide opening 7 diameters are greater than the diameter of slide bar 9.
The utility model sample adopts stainless steel to make its box body 1 long 12.3cm, wide 7.5cm, high 6.5cm; Grip shank 3 high 3.5cm, length and box body 1 are isometric.
During use, slide bar 8 and the bolt 9 of elder generation box body 1 one sides and both ends of the surface withdraw from, spring 11 is squeezed, box body 1 inside has enough spaces that near end of thighbone is inserted, again box body 1 is placed near end of thighbone to be measured through injection port 2, adjusts the horizontal and vertical position of femur position and side guide 4 and end clamp plate 5, to adapt to the requirement of test machine for mechanism, the end clamp plate 5 at appropriate regulation two ends and bolt 9 clamp the outside in the near end of thighbone.Regulate 4 upper four bolts 9 that are flexibly connected of side guide, so that side guide 4 clamps near end of thighbone with the another side.Because the slide opening diameter is a bit larger tham slide bar 11 diameters, and bolt 9 one ends and pressing plate flexible connection, so that side guide 4 and end clamp plate 5 can tilt along with the irregularly shaped of near end of thighbone.The grip shank 3 of end face is fixed on the Yin Sitelang 8874 biomechanics testing machines, just can have carried out torsion test.Like this, near end of thighbone is partly fixedly secured among box body, and near end of thighbone can not be rotated with respect to box body, structure and the characteristic of near end of thighbone are not damaged, make Experiments of Machanics more accurate, not needing does not affect the carrying out of subsequent experimental near end of thighbone PMMA embedding, and makes things convenient for the dismounting of jig.After experiment finishes, reverse rotation bolt 9, compression spring 11 restores, and easily withdraws from bolt 9.
Claims (6)
1. biomechanics detection clamp that near end of thighbone reverses, comprise oblong-shaped box body (1), it is characterized in that: box body (1) bottom surface is open injection port (2), the end face elongatedness perpendicular direction of box body (1) is formed with the grip shank (3) of being combined with the biomechanics testing machine, a side side guide (4) that arranges in the box body (1) is fixedly connected with most elasticity slide bar (8) one ends that run through slide opening (7) respectively with an end end clamp plate (5), and be slidingly connected box body (1) other end through bolt (9) with bolt (9) one ends in conjunction with screw.
2. the biomechanics detection clamp that reverses of described near end of thighbone according to claim 1, it is characterized in that: a side side guide (4) is rectangular in the box body (1), four jiaos of side guide (4) connect respectively the bolt that the other end is knob (10) (9), and side guide (4) four limit mid points connect respectively elasticity slide bar (8).
3. the biomechanics detection clamp that reverses of described near end of thighbone according to claim 1, it is characterized in that: an end end clamp plate (4) is rectangular in the box body (1), it is the bolt (9) of knob (10) that end clamp plate (5) center connects the outer other end of 1 box, and bolt (9) both sides of end clamp plate (5) connect respectively elasticity slide bar (8).
4. the biomechanics detection clamp that reverses of described near end of thighbone according to claim 1, it is characterized in that: the width of end clamp plate (5) is 1/2 of box body (1) end face width, the bolt (9) that is connected with end clamp plate (5), the elasticity slide bar (8) of both sides and grip shank (3) are arranged on the same straight line, and the another side of close box body (1).
5. the biomechanics detection clamp that reverses of described near end of thighbone according to claim 1, it is characterized in that: elasticity slide bar (8) comprises the slide bar (9) that an end is connected with side guide (4) or end clamp plate (5), packing ring (13) and nut (14) that slide bar (11) pocketed springs (12) that box body (1) is outside and restraining spring (12) are deviate from.
6. the biomechanics detection clamp that reverses of described near end of thighbone according to claim 1, it is characterized in that: for adapting to the irregularly shaped of near end of thighbone, be beneficial to side guide (4) or end clamp plate (5) and tilt in box body (1), slide opening (7) diameter is greater than the diameter of slide bar (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220484980.3U CN202837091U (en) | 2012-09-21 | 2012-09-21 | Biomechanics test fixture for proximal femur torsions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220484980.3U CN202837091U (en) | 2012-09-21 | 2012-09-21 | Biomechanics test fixture for proximal femur torsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837091U true CN202837091U (en) | 2013-03-27 |
Family
ID=47948772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220484980.3U Expired - Lifetime CN202837091U (en) | 2012-09-21 | 2012-09-21 | Biomechanics test fixture for proximal femur torsions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202837091U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293057A (en) * | 2013-06-04 | 2013-09-11 | 南京航空航天大学 | Bionics principle-based special clamp for fatigue test of artificial cervical intervertebral disc prosthesis |
| ES2537098A1 (en) * | 2014-10-14 | 2015-06-02 | Universidad De Oviedo | Machine for the testing of mechanical or biomechanical components (Machine-translation by Google Translate, not legally binding) |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
| CN111650040A (en) * | 2020-06-09 | 2020-09-11 | 哈尔滨工业大学 | Multi-degree-of-freedom femur static and fatigue test fixture |
-
2012
- 2012-09-21 CN CN201220484980.3U patent/CN202837091U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293057A (en) * | 2013-06-04 | 2013-09-11 | 南京航空航天大学 | Bionics principle-based special clamp for fatigue test of artificial cervical intervertebral disc prosthesis |
| CN103293057B (en) * | 2013-06-04 | 2015-10-28 | 南京航空航天大学 | Based on the unit clamp for the torture test of cervical artificial disc prosthese of bionics principle |
| ES2537098A1 (en) * | 2014-10-14 | 2015-06-02 | Universidad De Oviedo | Machine for the testing of mechanical or biomechanical components (Machine-translation by Google Translate, not legally binding) |
| CN107505192A (en) * | 2017-06-23 | 2017-12-22 | 天津市天津医院 | Acetabular bone simulation fixture and preparation method thereof |
| CN111650040A (en) * | 2020-06-09 | 2020-09-11 | 哈尔滨工业大学 | Multi-degree-of-freedom femur static and fatigue test fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202837091U (en) | Biomechanics test fixture for proximal femur torsions | |
| WO2009117111A3 (en) | Implantable spinal fixation crosslink | |
| CN210293598U (en) | Adjustable fixture tool | |
| CN104020043A (en) | Tool clamp for testing low-temperature mechanical tensile properties of fiber reinforced composite material | |
| CN207662718U (en) | A kind of fixture based on textile material tension test | |
| CN107727492A (en) | A kind of universal long bone biomechanical fixture | |
| CN204101374U (en) | Non-proportional loading performance test fixture | |
| CN109406265A (en) | A kind of extension test clamping device of brittle materials | |
| CN209048272U (en) | A kind of universal joint device of orthopedic external fixation needle | |
| CN209707257U (en) | Multifunctional curved test specimen garter extension pressurized tests device | |
| CN208953367U (en) | Intensity detecting device is used in a kind of production of tempered glass | |
| CN207540903U (en) | Bar bending experimental rig | |
| CN210953619U (en) | Splitting fatigue test fixture suitable for various cylinder test piece sizes | |
| CN209214874U (en) | Vibration test fixture | |
| CN207575221U (en) | A kind of percutaneous intra-articular comminuted fracture restorer | |
| CN202592234U (en) | Fast loosening and fastening no-thread clamp device | |
| KR101670064B1 (en) | Residual Stresses Introduced Device | |
| CN109738291A (en) | Multifunctional curved test specimen garter extension pressurized tests device | |
| CN207586019U (en) | A kind of fixture for the experiment of composite board compression performance | |
| CN218956261U (en) | Novel multifunctional anchoring device for tension and compression test | |
| CN218674511U (en) | Impact test fixture for simply supported beam impact test machine | |
| CN104874656B (en) | Self-adaptive rapid pipe clamp | |
| CN204248731U (en) | The chuck component of connection device twisted by damper | |
| Xu et al. | A combined partially threaded cancellous lag screw for achieving maximum compressive force without compromising pullout strength | |
| CN215767969U (en) | Fixing device for centering and adjusting distance of steel fiber tensioning and clamping fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |