Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Artificial anterior cruciate ligament tensile torsion composite load fatigue simulation device and its test method

A technology of anterior cruciate ligament and composite load, which is applied in the field of biomechanical property testing devices for biomedical textiles

Active Publication Date: 2021-09-14
DONGHUA UNIV +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem of evaluating the fatigue performance of the artificial anterior cruciate ligament under the combined load of tension and torsion under more simulated conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Artificial anterior cruciate ligament tensile torsion composite load fatigue simulation device and its test method
  • Artificial anterior cruciate ligament tensile torsion composite load fatigue simulation device and its test method
  • Artificial anterior cruciate ligament tensile torsion composite load fatigue simulation device and its test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This example records a fatigue simulation test method of artificial anterior cruciate ligament tensile torsion combined load, the specific test steps are as follows:

[0031] Step 1: Prepare experimental materials: prepare a servo motor 37 with a frequency range of 0.5-10 Hz, prepare a turntable 36 with a radius of 30 mm, prepare a connecting rod 38 with a length of 100 mm, prepare a reciprocating linear rack 39 with a length of 100 mm, prepare a diameter of 25mm torsion gear 33, prepare artificial anterior cruciate ligament sample A, length L1 is 80mm, diameter D1 is 6mm, has been coated with fibrinogen.

[0032] Step 2: Inspection and adjustment: place the connecting mechanism on the base of the fabric strength meter 2, fix the torsion test connection base 35 of the fabric strength meter and the base of the fabric strength meter 2 with a pin with a head, and adjust the initial position of the reciprocating linear rack 39 to The position of the center point of the chut...

Embodiment 2

[0040] This example records a fatigue simulation test method of artificial anterior cruciate ligament tensile torsion combined load, the specific test steps are as follows:

[0041] Step 1: prepare experimental materials: prepare a servo motor 37 with a frequency range of 0.5-10 Hz, prepare a turntable 36 with a radius of 40 mm, prepare a connecting rod 38 with a length of 120 mm, prepare a reciprocating linear rack 39 with a length of 120 mm, prepare a diameter of A 30mm twisted gear 33 was used to prepare an artificial anterior cruciate ligament sample A with a length L2 of 100mm and a diameter D2 of 10mm, which had been coated with fibrinogen.

[0042] Step 2: Inspection and adjustment: place the connecting mechanism on the base of the fabric strength meter 2, fix the torsion test connection base 35 of the fabric strength meter and the base of the fabric strength meter 2 with a pin with a head, and adjust the initial position of the reciprocating linear rack 39 to The posit...

Embodiment 3

[0050] This example records a fatigue simulation test method of artificial anterior cruciate ligament tensile torsion combined load, the specific test steps are as follows:

[0051] Step 1: prepare experimental materials: prepare a servo motor 37 with a frequency range of 0.5-10 Hz, prepare a turntable 36 with a radius of 50 mm, prepare a connecting rod 38 with a length of 140 mm, prepare a reciprocating linear rack 39 with a length of 120 mm, prepare a diameter of A 45 mm twisted gear 33 was prepared to prepare an artificial anterior cruciate ligament specimen A with a length L3 of 60 mm and a diameter D3 of 12 mm, which had been coated with fibrinogen.

[0052]Step 2: Inspection and adjustment: place the connecting mechanism on the base of the fabric strength meter 2, fix the torsion test connection base 35 of the fabric strength meter and the base of the fabric strength meter 2 with a pin with a head, and adjust the initial position of the reciprocating linear rack 39 to Th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an artificial anterior cruciate ligament tensile and torsion composite load fatigue simulation device and a testing method thereof, and belongs to the technical field of testing devices for biomechanical properties of biomedical textiles. Including computer, fabric strength tester, tensile torsion fatigue testing device, mechanical sensor and upper end fixture; the present invention simulates the stress environment of human anterior cruciate ligament under complex conditions in vitro, and has different elongation, torsion angle and coating The artificial anterior cruciate ligament specimen in the multi-layer condition is subjected to the tensile torsion composite load fatigue simulation test, which makes up for the blank of the artificial anterior cruciate ligament tensile torsion composite load fatigue performance test, and provides a basis for the development of artificial anterior cruciate ligament products and the selection of clinicians. Qualitative and quantitative theoretical basis.

Description

technical field [0001] The invention relates to an artificial anterior cruciate ligament tensile and torsion composite load fatigue simulation device and a testing method thereof, belonging to the technical field of testing devices for biomechanical properties of biomedical textiles. Background technique [0002] The anterior cruciate ligament is the main static stability mechanism for knee flexion and rotation, which mainly limits the anterior translation of the tibia relative to the femur and prevents the internal rotation of the tibia relative to the femur. There are more than 2 million cases of anterior cruciate ligament injury every year in the world. After the autogenous ligament is ruptured, the patient cannot repair itself and needs surgical reconstruction. Autografts and allografts are the main choices for ACL grafts in the past, but both inevitably have a series of disadvantages such as insufficient sources, donor site damage, and risk of immune rejection. At pres...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/38
CPCG01N3/38G01N2203/0007G01N2203/0026G01N2203/005G01N2203/0067G01N2203/0073
Inventor 林婧卢俊王璐管晓宁饶秉钧谢晓静李姝佳王富军赵金忠朱同贺蒋佳燕晓宇
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com