MD266Z - Device for testing of biological material - Google Patents
Device for testing of biological material Download PDFInfo
- Publication number
- MD266Z MD266Z MDS20100078A MDS20100078A MD266Z MD 266 Z MD266 Z MD 266Z MD S20100078 A MDS20100078 A MD S20100078A MD S20100078 A MDS20100078 A MD S20100078A MD 266 Z MD266 Z MD 266Z
- Authority
- MD
- Moldova
- Prior art keywords
- biological material
- fixed
- testing
- platform
- arm
- Prior art date
Links
- 239000012620 biological material Substances 0.000 title claims abstract description 17
- 239000003814 drug Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 4
- 238000011835 investigation Methods 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 210000003041 ligament Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002224 dissection Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
Invenţia se referă la medicină, în special la morfologie, şi poate fi utilizată pentru testarea materialului biologic. The invention relates to medicine, in particular to morphology, and can be used for testing biological material.
Este cunoscut dispozitivul pentru determinarea gradului de extindere şi rezistenţă biologică a oaselor care constă din platformă cu două fixatoare metalice, pe care este instalată proba de os. La mijlocul probei, în partea superioară, este fixat un indicator de lungime, iar în partea inferioară - un taler cu greutăţi [1]. The device for determining the degree of biological expansion and resistance of bones is known, which consists of a platform with two metal clamps, on which the bone sample is installed. In the middle of the sample, in the upper part, a length indicator is fixed, and in the lower part - a plate with weights [1].
Dezavantajele dispozitivului sunt: materialul biologic se rupe brusc, nu se determină alungirea probei, forţa de rupere nu se determină în newtoni (N). The disadvantages of the device are: the biological material breaks suddenly, the elongation of the sample is not determined, the breaking force is not determined in newtons (N).
Problema pe care o rezolvă invenţia constă în elaborarea unui dispozitiv care ar permite de a vizualiza forţa şi lungimea în timpul investigaţiei, forţa în N şi lungimea de rupere în mm după finisarea investigaţiei, de a seta mărimea pasului şi numărul înregistrării în memorie. The problem that the invention solves consists in developing a device that would allow to visualize the force and length during the investigation, the force in N and the breaking length in mm after finishing the investigation, to set the step size and the number of the recording in the memory.
Problema se soluţionează prin aceea că dispozitivul pentru testarea materialului biologic conţine o carcasă fixată pe o platformă, pe care este plasat un motor pas-cu-pas, arborele căruia este unit cu o tijă cu filet, pe care este montat un braţ mobil printr-o piuliţă. Un capăt al braţului mobil este montat liber pe o tijă. Pe platformă este fixat un senzor tensiometric unit cu un braţ imobil. La capetele braţelor mobil şi imobil sunt montate două cleme pentru fixarea materialului biologic. The problem is solved by the fact that the device for testing biological material contains a housing fixed on a platform, on which a stepper motor is placed, the shaft of which is connected to a threaded rod, on which a movable arm is mounted by a nut. One end of the movable arm is freely mounted on a rod. A tensiometric sensor connected to a fixed arm is fixed on the platform. Two clamps are mounted at the ends of the movable and fixed arms for fixing the biological material.
Dispozitivul permite efectuarea lentă a extinderii până la ruperea completă a probei, indicând mărimi concrete ale forţei şi lungimii în timpul şi după finisarea investigaţiei. The device allows for slow expansion until the sample is completely broken, indicating specific force and length values during and after the investigation is completed.
Rezultatul constă în aprecierea exactă a forţei şi alungirii probei de material biologic până la rupere. The result consists of the exact assessment of the force and elongation of the biological material sample until rupture.
Invenţia se explică prin desenul din figură, care reprezintă partea mecanică a dispozitivului. The invention is explained by the drawing in the figure, which represents the mechanical part of the device.
Carcasa dispozitivului 1 este fixată din exterior pe o platformă metalică 2, pe care sunt situate elementele interioare şi motorul pas-cu-pas 3, arborele căruia este unit cu o tijă 4 cu filet, pe care este montat un braţ mobil 5 printr-o piuliţă 6. La ambele capete ale tijei cu filet sunt amplasate două colţare metalice 7. Un capăt al braţului mobil 5 este montat liber pe o tijă 8. Pe platforma 2 este fixat un senzor tensiometric 10 unit cu un braţ imobil 11. La capetele braţelor mobil 5 şi imobil 11 sunt montate două cleme 12 pentru fixarea materialului biologic. Colţarele metalice 7 sunt fixate cu un opritor 9, care împiedică deplasarea braţului mobil în afara filetului. The housing of the device 1 is fixed from the outside on a metal platform 2, on which the internal elements and the stepper motor 3 are located, the shaft of which is connected to a threaded rod 4, on which a movable arm 5 is mounted by a nut 6. At both ends of the threaded rod are located two metal brackets 7. One end of the movable arm 5 is freely mounted on a rod 8. On the platform 2 is fixed a tensiometric sensor 10 connected to a fixed arm 11. At the ends of the movable arms 5 and fixed 11 are mounted two clamps 12 for fixing the biological material. The metal brackets 7 are fixed with a stop 9, which prevents the movable arm from moving outside the thread.
Dispozitivul funcţionează în modul următor. The device operates in the following mode.
Între clemele 12 se fixează materialul biologic. Braţul mobil 5 este acţionat de motorul pas-cu-pas 3. Comanda motorului se face electronic. Senzorul tensiometric 10 transformă forţa de întindere a materialului biologic în semnal electronic. Acest semnal, după ce este amplificat şi filtrat, este transformat în valori numerice şi este prelucrat de către microprocesor. Aplicând operaţii matematice asupra acestor date se obţine valoarea forţei de întindere în N şi se afişează pe ecran. The biological material is fixed between the clamps 12. The mobile arm 5 is driven by the stepper motor 3. The motor is controlled electronically. The tensiometric sensor 10 converts the tensile force of the biological material into an electronic signal. This signal, after being amplified and filtered, is converted into numerical values and is processed by the microprocessor. By applying mathematical operations on these data, the value of the tensile force in N is obtained and displayed on the screen.
Exemplu de realizare a invenţiei Example of embodiment of the invention
Materialul se colectează în primele 24 ore după deces şi se studiază la temperatura de 20…24°±1C°. Din ligamentele supuse cercetării, prin şabloane - disecţie se obţin fâşii cu dimensiunile de 4,0 x 0,6 cm, care se fixează în clemele dispozitivului (lungimea fâşiilor ligamentare supuse extensiei este de 25 mm). Se porneşte motorul pas-cu-pas 3. Extinderea materialului biologic se efectuează până la ruperea probei. Senzorul tensiometric 10 transformă forţa de întindere a materialului în semnal electronic. Mărimea forţei şi lungimii de rupere se afişează pe ecran. The material is collected within the first 24 hours after death and studied at a temperature of 20…24°±1C°. From the ligaments subjected to research, strips with dimensions of 4.0 x 0.6 cm are obtained through dissection templates, which are fixed in the device clamps (the length of the ligament strips subjected to extension is 25 mm). The stepper motor 3 is turned on. The biological material is extended until the sample breaks. The tensiometric sensor 10 converts the stretching force of the material into an electronic signal. The magnitude of the force and the length of the break are displayed on the screen.
Acest dispozitiv a fost utilizat în condiţii de laborator morfologic şi a permis stabilirea gradului de extensie maximă (alungirea absolută), limitei tenacităţii (rezistenţa la extindere) şi coeficientului de elasticitate (modulul Zoung) al materialului biologic. Dispozitivul poate fi aplicat simplu, nu necesită cunoştinţe speciale şi poate fi utilizat în orice laborator medical. Permite micşorarea distanţei între cleme la minimum, deci testarea unei game largi de ţesuturi biologice. This device was used in morphological laboratory conditions and allowed to determine the degree of maximum extension (absolute elongation), the limit of tenacity (resistance to extension) and the coefficient of elasticity (Zoung modulus) of the biological material. The device can be applied simply, does not require special knowledge and can be used in any medical laboratory. It allows to reduce the distance between the clamps to a minimum, thus testing a wide range of biological tissues.
1. Горский Ф.К., Сакевич Н.М. Физический практикум с элементами электроники. Минск, 1980, с. 32-34 1. Горский Ф.К., Sakevich Н.М. Physical practice with electronic elements. Minsk, 1980, p. 32-34
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20100078A MD266Z (en) | 2010-04-26 | 2010-04-26 | Device for testing of biological material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20100078A MD266Z (en) | 2010-04-26 | 2010-04-26 | Device for testing of biological material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| MD266Y MD266Y (en) | 2010-08-31 |
| MD266Z5 MD266Z5 (en) | 2011-03-31 |
| MD266Z true MD266Z (en) | 2011-03-31 |
Family
ID=45815128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDS20100078A MD266Z (en) | 2010-04-26 | 2010-04-26 | Device for testing of biological material |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD266Z (en) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2035907A1 (en) * | 1990-02-08 | 1991-08-09 | Phillip M. Lintilhac | Instrument for the application of controlled mechanical loads to tissues in sterile cultures |
| CN2102511U (en) * | 1991-11-07 | 1992-04-22 | 山东医科大学 | Measuring device of boilogical material mechanics |
| DE4229549A1 (en) * | 1992-09-04 | 1994-03-10 | Christoph Prof Dr Hartung | Determination method for mechanical properties of biological tissue - using in situ measuring head applying dynamic twisting |
| RU2112230C1 (en) * | 1996-09-30 | 1998-05-27 | Акционерное общество закрытого типа "Литаформ" | Gear testing materials for strength |
| JP3459633B2 (en) * | 1998-09-18 | 2003-10-20 | バイオ−ラッド ラボラトリーズ,インコーポレイティド | Biaxial strain system for cultured cells |
| US6107081A (en) * | 1999-02-05 | 2000-08-22 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Uni-directional cell stretching device |
| RU2178161C2 (en) * | 2000-02-11 | 2002-01-10 | Таганрогский государственный радиотехнический университет | Set to test materials for strength |
| DE10041988B4 (en) * | 2000-08-26 | 2006-02-09 | Artmann, Gerhard, Prof. Dr. | Apparatus and method for measuring forces of living material |
| ATE340251T1 (en) * | 2002-01-15 | 2006-10-15 | Biogentis Inc | METHOD AND SYSTEM FOR THE CONTROLLED MECHANICAL LOADING OF A TISSUE CONSTRUCT |
| RU2279658C1 (en) * | 2004-11-09 | 2006-07-10 | Открытое акционерное общество "Точприбор" | Device for tensile and compression tests |
| MD3948G2 (en) * | 2008-03-28 | 2010-02-28 | Институт Прикладной Физики Академии Наук Молдовы | Device for determining the lubricating ability of lubricants |
| RU2376567C1 (en) * | 2008-09-29 | 2009-12-20 | Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Южный Федеральный Университет" | Device for bending test of thin specimens |
| DE102008050465B4 (en) * | 2008-10-08 | 2012-12-13 | Zwick Gmbh & Co. Kg | Device for performing component and material tests on samples |
| RU2377531C1 (en) * | 2008-11-24 | 2009-12-27 | Государственное учреждение Физико-технический институт Уральского отделения Российской академии наук | Method for loading of flat sample |
| RU2380674C1 (en) * | 2008-12-24 | 2010-01-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Installation for fatigue testing annular samples of materials |
| RU90562U1 (en) * | 2009-09-22 | 2010-01-10 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" | INSTALLATION FOR TESTING TENSION COATINGS |
-
2010
- 2010-04-26 MD MDS20100078A patent/MD266Z/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| MD266Y (en) | 2010-08-31 |
| MD266Z5 (en) | 2011-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Vallabhaneni et al. | Heterogeneity of tensile strength and matrix metalloproteinase activity in the wall of abdominal aortic aneurysms | |
| EP2293081A3 (en) | Analyzing apparatus and analyzing method | |
| Ettema et al. | A new method to measure elastic properties of plastic-viscoelastic connective tissue | |
| Tamura et al. | Mechanical characterization of brain tissue in high-rate extension | |
| Oyen et al. | Uniaxial stress–relaxation and stress–strain responses of human amnion | |
| MD266Z (en) | Device for testing of biological material | |
| WO2007136848A3 (en) | Interactive device for monitoring and reporting glucose levels | |
| Pan et al. | Brain stiffness in epilepsy’s patients by indentation test | |
| RU2372593C2 (en) | Method for measurement of armature tension | |
| CN201340418Y (en) | Blood rheometer testing device | |
| CN201544430U (en) | Clamping force measuring device for injection molding machine | |
| RU2735134C1 (en) | Device for determining strength properties of solid materials | |
| RU2396900C2 (en) | Apparatus for evaluating degree of bone tissue restoration | |
| CN205493869U (en) | Flesh bone ultrasonic testing probe unit | |
| EP2565598A3 (en) | Scale | |
| RU2538414C2 (en) | Device for determining modulus of elasticity of structural materials | |
| US2042457A (en) | Stretch and compression testing device | |
| Hsieh et al. | Non-destructive natural frequency tests of cyclic fatigue-loaded nickel–titanium rotary instruments | |
| Epple | Monitoring of Concrete with Embedded Ultrasound Sensors, Coda Waves and a Novel Measurement Device | |
| CN100545628C (en) | A calibration method and signal generator for accurate data acquisition rate of strength instrument | |
| Kuhinek et al. | Development of virtual instrument for uniaxial compression testing of rock samples | |
| RU163084U1 (en) | MECHANICAL RANOTENSIOMETER | |
| RU78653U1 (en) | DEVICE FOR SIZING SOFT-WOVEN STRUCTURES | |
| Meng et al. | Characterization of Alkali-Silica Reaction Products by means of Raman Spectroscopy before and after Application of Accelerated Tests | |
| Kadyseva et al. | Determination of physical and chemical parameters that can be used to predict the hemostatic activity of chitosan without conducting in vivo experiments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ND4Y | Validity of short term patent extended [from 6 to 10 years] |
Expiry date: 20200426 |
|
| KA4Y | Short-term patent lapsed due to non-payment of fees (with right of restoration) | ||
| MM4Y | Short-term patent definitely lapsed due to non-payment of fees |