CN106680114A - Soft tissue anisotropy shearing mechanical property tester - Google Patents
Soft tissue anisotropy shearing mechanical property tester Download PDFInfo
- Publication number
- CN106680114A CN106680114A CN201710039339.6A CN201710039339A CN106680114A CN 106680114 A CN106680114 A CN 106680114A CN 201710039339 A CN201710039339 A CN 201710039339A CN 106680114 A CN106680114 A CN 106680114A
- Authority
- CN
- China
- Prior art keywords
- plate
- support board
- soft tissue
- shears
- shearing
- 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.)
- Pending
Links
- 238000010008 shearing Methods 0.000 title claims abstract description 35
- 210000004872 soft tissue Anatomy 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 18
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 230000003028 elevating effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 210000001519 tissue Anatomy 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
Abstract
The invention discloses a soft tissue anisotropy shearing mechanical property tester. The tester comprises a base, and a sample clamping mechanism, a shearing force detection mechanism and a shearing force generation mechanism which are positioned on the base, wherein a sample is put in the sample clamping mechanism, the shearing force generation mechanism is used for enabling the sample clamping mechanism to generate shearing force, and the shearing force detection mechanism is used for detecting the magnitude of the shearing force applied to the sample. Through the tester, samples in different geometrical shapes can be accurately measured, and the anisotropy tissue shearing mechanical property can be measured.
Description
Technical field
The present invention relates to a kind of soft tissue anisotropy shears mechanics characteristic tester, belong to the testing equipment of soft tissue.
Background technology
The mechanical property testing of biological tissue is important ring during organizational project, the research and development of medical apparatus and instruments
Section.Because biologic soft tissue is according to different and form, the difference of feature of itself, its mechanical characteristic is also different, main at present
Biological tissue's mechanical property testing include extruding test, extension test and shearing test, wherein existing for shearing test
Tester such as UTS-2060 it is serial, Test-Resource 100 is serial, has the disadvantage that：
1. test object is relatively simple, and existing every kind of testing experiment instrument only can be realized to particular geometric size sample
Test, and testing range and test scope are restricted；
2. test function is relatively simple, and existing every kind of testing experiment instrument is only capable of being sheared in one or limited direction
Test, it is not possible to carry out shearing test in any direction；
3. because test object is relatively simple and test function is relatively simple, so that needing to carry out a certain tester
During detection, need multiple stage testing experiment instrument to complete, cause high cost.
In view of above-mentioned defect, the present invention devises a kind of soft tissue anisotropy shearing mechanical characteristic of new structure
Tester so as to more the value in industry.
The content of the invention
The present invention seeks to：A kind of Constitutive Relation of Soft Tissue tester is provided, it is capable of achieving to biologic soft tissue
Shearing test, realizes measurement soft tissue anisotropy shearing mechanical characteristic under any shear direction.
The technical scheme is that：A kind of soft tissue anisotropy shears mechanics characteristic tester, including base and
Sample clamping mechanism, testing agency and shearing force on the base produces mechanism, wherein sample clamping mechanism bag
Include sample clamping pedestal and the upper support board on sample clamping pedestal and lower support board, upper and lower two pieces of support boards
On train wheel bridge and lower plate are connected to by rolling bearing, while also including a location-plate, the location-plate is provided with card
Structure is closed, for engaging the clamping plate；The shearing force produces mechanism to be included motor and for fixing and drives the motor liter
The elevating mechanism of drop, the rotating shaft of the motor is connected with the lower support board by an output shaft and drives the lower support board to enter
Row shearing motion；The testing agency includes shear force detection mechanism and shear displacemant testing agency, wherein shearing force inspection
Surveying mechanism includes column and the shear force sensor being fixed on the column, and shear force sensor and the upper support board
It is connected, the shear displacemant testing agency includes displacement transducer, the support of fixed displacement sensor and matches somebody with somebody with displacement transducer
Be connected between the reflecting plate of conjunction, wherein reflecting plate and the lower support board, and with the lower support board be motor driven jointly into
Row shearing motion.
Further, institute's displacement sensors are laser displacement sensor, and the reflecting plate is laser-bounce plate.
Further, the location-plate is arranged on the upper support board.
Further, bolt hole is additionally provided with the upper and lower support board, the correspondence position of the upper and lower clamping plate also is provided with
Bolt hole, will be fixedly connected by bolt between support board and clamping plate.
Further, the elevating mechanism, column, support and sample clamping pedestal are bolted and are fixed on institute
State on base.
Further, upper and lower two screens grooves are provided with according to splint position on the location-plate, the train wheel bridge inserts institute
State in screens groove, the lower plate is inserted in the lower screens groove.
Further, the reflecting plate upper bottom portion is provided with draw-in groove, and the lower support board can be snapped in the draw-in groove, and is led to
Cross bolt to be fixedly connected with the reflecting plate.
It is an advantage of the invention that：
1. the lower plate in tester of the present invention can be freely lifted so that the sample standard deviation of different geometries can be put into
Measure in clamping plate, improve the adaptability of tester;
2. the clamping plate in tester can be rotated freely, therefore measurable biologic soft tissue is each special to shearing motion mechanics
Property, also, by adding location-plate, the synchronous rotary of two clamping plates is realized, prevent the damage of sample;
3., by shear force sensor and the cooperation of displacement transducer, the mechanical characteristic of shearing motion, and its can be measured accurately
Put on middle shear force sensor and fixed, interference of the shearing motion to power measurement signal can be prevented.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Fig. 1 is the positive structure schematic of tester of the present invention；
Fig. 2 is the reverse structure schematic of tester of the present invention；
Wherein：1 base；Support board on 2；3 times support boards；4 train wheel bridges；5 lower plates；6 location-plates；7 shear force sensors；8 is electric
Machine；9 elevating mechanisms；10 displacement transducers；11 reflecting plates；12 bolts.
Specific embodiment
Embodiment：As described in accompanying drawing 1-2, a kind of soft tissue anisotropy of the present invention shears mechanical property testing
Instrument, including base 1 and the sample clamping mechanism on the base 1, testing agency and shearing force generation mechanism, wherein institute
Sample clamping mechanism is stated including sample clamping pedestal and the upper support board 2 on sample clamping pedestal and lower support board 3, institute
State and train wheel bridge 4 and lower plate 5 are connected to by rolling bearing on upper and lower two pieces of support boards, the train wheel bridge 4 is in upper loading
Rotate on plate 2, the lower plate 5 is rotated on lower support board 3, while also including a location-plate 6, the location-plate 6 is provided with
Snap-in structure, for engaging the clamping plate, by engaging of location-plate or so synchronous rotary between train wheel bridge 4 and lower plate 5 is made；
The shearing force produces mechanism to be included motor 8 and for fixing and drives the elevating mechanism 9 of the motor lifting, the motor
Rotating shaft is connected with the lower support board 3 by an output shaft and drives the lower support board 3 to carry out shearing motion；The testing machine
Structure includes shear force detection mechanism and shear displacemant testing agency, wherein the shear force detection mechanism includes column and is fixed on
Shear force sensor 7 on the column, and shear force sensor 7 is connected with the upper support board 2, the shear displacemant inspection
Surveying mechanism includes displacement transducer 10, the support of fixed displacement sensor and the reflecting plate 11 coordinated with displacement transducer, wherein
It is connected between reflecting plate 11 and the lower support board 3, and jointly shearing motion is carried out by the driving of motor 8 with the lower support board 3.
In the present embodiment, institute's displacement sensors 10 are laser displacement sensor, and the reflecting plate 11 is laser-bounce
Plate.
In the present embodiment, the location-plate 6 is arranged on the upper support board 2.
In the present embodiment, upper and lower two screens grooves, the train wheel bridge are provided with according to splint position on the location-plate 6
Insert in the upper screens groove, the lower plate is inserted in the lower screens groove.
In the present embodiment, bolt hole, the correspondence position of the upper and lower clamping plate are additionally provided with the upper and lower support board
Bolt hole is provided with, support board is attached with clamping plate by bolt.
In the present embodiment, the elevating mechanism 10, column, support and sample clamping pedestal are bolted solid
It is scheduled on the base 1.
In the present embodiment, the upper bottom portion of the reflecting plate 11 is provided with draw-in groove, and the lower support board 3 can snap in the draw-in groove
It is interior, and be fixedly connected with the reflecting plate by bolt.
During specific works, sample is positioned between upper and lower clamping plate, and adjusts the position angle and lower support board of clamping plate
Highly, while upper and lower clamping plate can synchronize rotation, sample is made to be placed on most suitable position, then by under the driving of motor 8
Support board 3 carries out shearing motion, and the anisotropy shearing force of sample is measured, and wherein shearing force is transmitted by upper support board 2
Shearing force measurement is carried out to shear force sensor 7, shear displacemant is measured by displacement transducer 10.
Certainly above-described embodiment technology design only to illustrate the invention and feature, its object is to allow and are familiar with technique
People will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to this
The modification that the spirit of bright main technical schemes is done, all should be included within the scope of the present invention.
Claims (7)
1. a kind of soft tissue anisotropy shears mechanics characteristic tester, it is characterised in that：Including base (1) and positioned at described
Sample clamping mechanism, testing agency and shearing force on base (1) produces mechanism, wherein the sample clamping mechanism includes sample
Gripping base and upper support board (2) and lower support board (3) on sample clamping pedestal, upper and lower two pieces of support boards
On train wheel bridge (4) and lower plate (5) are connected to by rolling bearing, while also include a location-plate (6), the location-plate
(6) snap-in structure is provided with, for engaging the clamping plate；The shearing force produces mechanism includes motor (8) and for fixing simultaneously
The elevating mechanism (9) of the motor lifting, the rotating shaft of the motor is driven to be connected with the lower support board (3) by an output shaft
And drive the lower support board (3) to carry out shearing motion；The testing agency includes that shear force detection mechanism and shear displacemant are examined
Mechanism is surveyed, wherein the shear force detection mechanism includes column and the shear force sensor (7) being fixed on the column, and
Shear force sensor (7) is connected with the upper support board (2), and the shear displacemant testing agency includes displacement transducer (10),
The support of fixed displacement sensor and the reflecting plate (11) coordinated with displacement transducer, wherein reflecting plate (11) and the lower loading
It is connected between plate (3), and jointly shearing motion is carried out by motor (8) driving with the lower support board (3).
2. soft tissue anisotropy according to claim 1 shears mechanics characteristic tester, it is characterised in that：The displacement
Sensor (10) is laser displacement sensor, and the reflecting plate (11) is laser-bounce plate.
3. soft tissue anisotropy according to claim 1 and 2 shears mechanics characteristic tester, it is characterised in that：It is described
Reflecting plate upper bottom portion is provided with draw-in groove, and the lower support board can be snapped in the draw-in groove, and solid with the reflecting plate by bolt
Fixed connection.
4. soft tissue anisotropy according to claim 1 shears mechanics characteristic tester, it is characterised in that：The positioning
Plate (6) is arranged on the upper support board (2).
5. the soft tissue anisotropy according to claim 1 or 4 shears mechanics characteristic tester, it is characterised in that：It is described
Upper and lower two screens grooves are provided with according to splint position on location-plate (6), the train wheel bridge is inserted in the upper screens groove, described
Lower plate is inserted in the lower screens groove.
6. soft tissue anisotropy according to claim 1 shears mechanics characteristic tester, it is characterised in that：On described,
Bolt hole is additionally provided with lower support board, the correspondence position of the upper and lower clamping plate also is provided with bolt hole, by bolt by loading
It is fixedly connected between plate and clamping plate.
7. soft tissue anisotropy according to claim 1 shears mechanics characteristic tester, it is characterised in that：The lifting
Mechanism (10), column, support and sample clamping pedestal are bolted and are fixed on the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039339.6A CN106680114A (en) | 2017-01-19 | 2017-01-19 | Soft tissue anisotropy shearing mechanical property tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710039339.6A CN106680114A (en) | 2017-01-19 | 2017-01-19 | Soft tissue anisotropy shearing mechanical property tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106680114A true CN106680114A (en) | 2017-05-17 |
Family
ID=58859765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710039339.6A Pending CN106680114A (en) | 2017-01-19 | 2017-01-19 | Soft tissue anisotropy shearing mechanical property tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106680114A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982250A (en) * | 2018-08-10 | 2018-12-11 | 重庆大学 | A kind of device and test method for simulating jacking pipe joints and rock matter country rock shearing friction |
| CN111272583A (en) * | 2020-03-31 | 2020-06-12 | 河南牛帕力学工程研究院 | Compression-shear testing machine |
| NL2034960A (en) | 2022-10-14 | 2023-07-07 | Univ Fudan | In vivo multidimensional stress-strain testing device for plantar soft tissues |
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|---|---|---|---|---|
| JP2009085672A (en) * | 2007-09-28 | 2009-04-23 | Toyota Central R&D Labs Inc | Shear force detection device |
| CN201939489U (en) * | 2010-12-15 | 2011-08-24 | 刘洋 | Experiment clamp for biomechanics |
| CN103555561A (en) * | 2013-10-29 | 2014-02-05 | 王卫明 | Biomechanical generator |
| CN204679402U (en) * | 2015-05-28 | 2015-09-30 | 长沙理工大学 | A kind of Interlaminar shear strengths test unit becoming to shear arbitrarily angle with surface level |
| CN104977211A (en) * | 2015-07-14 | 2015-10-14 | 苏州大学张家港工业技术研究院 | Mechanical property tester for biological soft tissue |
| CN105527174A (en) * | 2016-01-05 | 2016-04-27 | 郑州大学 | Measuring device of biological soft tissue mechanical properties |
| CN105571956A (en) * | 2016-01-05 | 2016-05-11 | 郑州大学 | Shearing device for measuring mechanical properties of biological soft tissues |
| CN206557011U (en) * | 2017-01-19 | 2017-10-13 | 苏州大学 | Soft tissue anisotropy shears mechanics characteristic tester |
-
2017
- 2017-01-19 CN CN201710039339.6A patent/CN106680114A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085672A (en) * | 2007-09-28 | 2009-04-23 | Toyota Central R&D Labs Inc | Shear force detection device |
| CN201939489U (en) * | 2010-12-15 | 2011-08-24 | 刘洋 | Experiment clamp for biomechanics |
| CN103555561A (en) * | 2013-10-29 | 2014-02-05 | 王卫明 | Biomechanical generator |
| CN204679402U (en) * | 2015-05-28 | 2015-09-30 | 长沙理工大学 | A kind of Interlaminar shear strengths test unit becoming to shear arbitrarily angle with surface level |
| CN104977211A (en) * | 2015-07-14 | 2015-10-14 | 苏州大学张家港工业技术研究院 | Mechanical property tester for biological soft tissue |
| CN105527174A (en) * | 2016-01-05 | 2016-04-27 | 郑州大学 | Measuring device of biological soft tissue mechanical properties |
| CN105571956A (en) * | 2016-01-05 | 2016-05-11 | 郑州大学 | Shearing device for measuring mechanical properties of biological soft tissues |
| CN206557011U (en) * | 2017-01-19 | 2017-10-13 | 苏州大学 | Soft tissue anisotropy shears mechanics characteristic tester |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982250A (en) * | 2018-08-10 | 2018-12-11 | 重庆大学 | A kind of device and test method for simulating jacking pipe joints and rock matter country rock shearing friction |
| CN108982250B (en) * | 2018-08-10 | 2020-11-13 | 重庆大学 | Device for simulating shearing friction between pipe joints of jacking pipes and rock surrounding rocks and test method |
| CN111272583A (en) * | 2020-03-31 | 2020-06-12 | 河南牛帕力学工程研究院 | Compression-shear testing machine |
| NL2034960A (en) | 2022-10-14 | 2023-07-07 | Univ Fudan | In vivo multidimensional stress-strain testing device for plantar soft tissues |
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Effective date of abandoning: 20240329 |
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