2015(b)ArkhipovSV_ArkhipovaAS

The publication describes the design of a stand for testing joints with flexible elements, including ball joints, which contain an internal flexible element - an analogue of the ligamentum capitis femoris (LCF).

STAND FOR TESTING CYLINDRICAL AND BALL HINGES

(Стенд для испытания цилиндрических и шаровых шарниров)

Patent Application RU2015102125A

Inventors

Сергей Васильевич Архипов,

Александра Сергеевна Архипова

(Sergey Vasilyevich Arkhipov,

Alexandra Sergeevna Arkhipova)

Original Assignee

Сергей Васильевич Архипов

(Sergey Vasilyevich Arkhipov)

Application RU2015102125A events

2015-01-23 Application filed by Сергей Васильевич Архипов

2015-01-23 Priority to RU2015102125A

2016-08-10 Publication of RU2015102125A

Claims

A test stand for testing cylindrical and ball joints, comprising a bed with support elements and a device for securing the hinge finger, one or more drives for creating working movements, an engine, a drive shaft, a housing with hinge holders and a load beam with a load fixed to it, characterized in that the hinge pin is connected to the bed by a hinge with a latch and a device for adjusting the position, and the hinge socket is connected to the housing with the possibility of fixing in various positions, drives for Adjustable length working movements are movably connected to the hinge body and pin and contain devices for measuring force, in addition, the casing is movably connected to a height-adjustable movable support, and the hinge can be equipped with one or more flexible inextensible elements located both outside and inside the hinge, and the body, the hinge socket and the hinge pin have elements for attaching their ends and contain strain gauges, flexible inextensible elements inside the hinge can be connected at one end with g an optical system and strain gauges can be installed in a shaped groove, and with a shaped groove made on the inner surface of the hinge socket, a coma of this strain gauge can be located on the surface of the hinge head and the inner surface of the hinge socket in contact with it, and with the bed two vertically arranged flat surfaces with a scale-coordinate grid are connected, forming a three-dimensional coordinate system with the upper surface of the bed, moreover, on the body, the finger At the hinge, the load, and the movable support, electromagnetic radiation sources may be located to record a change in position.

Description of the invention

Description in Russian is available at the link: 2015(b)АрхиповСВ_АрхиповаАС (the blog has a translation function).

Fig. 1

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External links:

Arkhipov SV, Arkhipova AS. Stand for testing cylindrical and ball hinges. Application for invention № 2015102125 (003265) dated January 23, 2015. [in Russian] (Архипов СВ. Архипова АС. Стенд для испытания цилиндрических и шаровых шарниров. Заявка на изобретение №2015102125 (003265) от 23.01.2015.) [patents.google]

Keywords:

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, hinges, ball joint, joint with flexible elements

BLOG CONTENT

MECHANICS AND ROBOTICS

Comments

ChatGPT. Scientific Review On the Article: “Why Acetabular Labrum Repair May Be Ineffective”

At our request, the language model ChatGPT, prepared to assist in the analysis and editing of texts by OpenAI, 2025, wrote a review of the article by Arkhipov SV. Why Acetabular Labrum Repair May Be Ineffective: A Note on the Mysterious ‘Dark Matter’ in the Hip Joint ([Ru] Архипов СВ . Почему восстановление вертлужной губы может быть неэффективно?: Заметка о таинственной «темной материи» в тазобедренном суставе. 06.04.2025 ). The original article was reviewed and edited based on the recommendations of Grok , an artificial intelligence developed by xAI. In accordance with the comments of both reviewers, the article was corrected and published. Below is the original text of the review by ChatGPT: Scientific Review and Critical Commentary On the article: “Why Acetabular Labrum Repair May Be Ineffective: A Note on the Mysterious ‘Dark Matter’ in the Hip Joint” Author: S.V. Arkhipov, Independent Researcher, Joensuu, Finland I. Scientific...

2025ArkhipovSV. Human Children

The monograph Arkhipov S.V. Human Children: The Origins of Biblical Legends from a Physician's Perspective. An essay with references to interactive materials. 2nd revised and expanded edition. Joensuu: Author's Edition, 2025. [In Russian]. The monograph dates the writing of the Book of Genesis and the events depicted in it, as well as refutes the authorship of Moses. I offer mutually beneficial cooperation (50/50) in literary translation into English or native language. Proofreading of machine translation and cooperation in editing are expected. Requirements for co-author: 1. Native speaker 2. Experience as a writer. E-mail: archipovsv(&)gmail.com Annotation The first version of the Book of Genesis appeared in Ancient Egypt approximately 3,600 years ago, during the Hyksos period. The work was conceived as a fairy tale epic. An unknown physician-encyclopedist, who is also presumed to have authored the Edwin Smith Papyrus, played a role in its composition...

2025ArkhipovSV. Why Acetabular Labrum Repair May Be Ineffective

Original in Russian is available at the link: С.В. Архипова «Почему восстановление вертлужной губы может быть неэффективно?» (06.04.2025) , below is a machine translation edited by a non-native speaker (version dated 06/04/2025). Thematic Internet Journal About round ligament of femur April 2025 WHY ACETABULAR LABRUM REPAIR MAY BE INEFFECTIVE?: A NOTE ON THE MYSTERIOUS "DARK MATTER" OF THE HIP JOINT S.V. Arkhipov, Independent Researcher, Joensuu, Finland Abstract Acetabular labrum repair and reconstruction do not prevent hip joint instability during gait and the development of osteoarthritis in the case of an elongated ligamentum capitis femoris. This conclusion is based on mathematical calculations and analysis of experiments conducted on a mechanical hip joint model. Keywords : arthroscopy, hip joint, acetabular labrum, ligamentum capitis femoris, ligamentum teres, ligament of head of femur , reconstruction, repair Introduction Nearly 80% of primary hip ar...

1836WeberW_WeberE

We present fragments from the book that laid the foundation of biomechanics of the hip joint considering the ligamentum capitis femoris (LCF). The authors experimentally proved that this structure is situated in the frontal plane when the body is in a vertical position. Analysis of observations showed that when standing on one leg, the LCF and the anterior portion of the iliofemoral ligament (pars descendens lig. iliofemoralis) are stretched and hold the pelvis. These ligaments counteract the weight of the body along with the head of the femur on the same side. The insight of the Weber brothers was later developed in the works of H. von Meyer (1856) , W. Turner (1857) , and W. Savory(1874) . Weber W, Weber E. Mechanik der menschlichen Gehwerkzeuge: eine anatomisch-physiologische Untersuchung. Gottingen: Dietrichsche Buchhandlung, 1836. [fragment s ] Quote p. 128 Wir werden nämlich im folgenden Abschnitte über das Hüftgelenk nachweisen, ...

Grok. Review of the Article by S.V. Arkhipov "Why Restoration of the Acetabular Labrum May Be Ineffective?".

At our request, Grok, artificial intelligence developed by xAI, wrote a review of the article by Arkhipov SV. Why Acetabular Labrum Repair May Be Ineffective: A Note on the Mysterious ‘Dark Matter’ in the Hip Joint ([Ru] Архипов СВ . Почему восстановление вертлужной губы может быть неэффективно?: Заметка о таинственной «темной материи» в тазобедренном суставе. 06.04.2025 ). In accordance with the comments, the article was revised and sent for re-review to the ChatGPT language model prepared to assist in the analysis and editing of texts (OpenAI, 2025). Below is the original text of the review by Grok: Review of the Article by S.V. Arkhipov "Why Restoration of the Acetabular Labrum May Be Ineffective?: A Note on the Mysterious 'Dark Matter' of the Hip Joint". This review focuses on the analysis of argumentation, as requested. The author asserts that restoration of the acetabular labrum fails to prevent hip joint instability and osteoarthritis when the ligame...

BLOG CONTENT

T he ligament of the head of femur or ligamentum capitis femoris (LCF) is the key to a graceful gait and understanding the causes of hip joint diseases. We present promising scientific knowledge necessary for preserving health, to create new implants and techniques of treating degenerative pathology and damage of the hip joint. Project objective : preserving a normal gait and quality of life, helping to study of hip joint biomechanics, developing effective treatments for its diseases and injuries. In translating to English, the author is assisted by ChatGPT (version 3.5) and the Google Translate service . We're sorry for any flaws in the syntax. The meaning makes up for the imperfections! TABLES OF CONTENTS ANCIENT MENTIONS (Early literary evidence and early authors... ) 976-1115Theophilus Protospatharius The author writes about the normal anatomy of the LCF and its connective function. 10...

1922LeeserI

A fragment of the Book of Genesis tells about the journey of the family of Patriarch Jacob from Charan to Canaan (Gen. 31:1 – 33:20). The translation into English from of the Masoretic Hebrew text of the Torah was done by Isaac Leeser ( 1922 LeeserI ). «Most scholars agree that the texts now found in Genesis began to be written down sometime after the establishment of the monarchy in Israel in the tenth century BCE» (1992SuggsMJ_MuellerJR). A selected passage from an ancient work mentions for the first time in history the injury of the ligamentum capitis femoris (LCF) of a person is mentioned (Gen. 32:26,33). In the original Hebrew source this anatomical element is referred to as «גיד» (gheed, gid) ( Bereshit 32:33 ; 1923, 2004PreussJ; 2019ArkhipovSV_SkvortsovDV ; 2020ArkhipovSV_ProlyginaIV ). This term was recorded in writing long before Hippocrates of Kos (V-IV cent. BCE) who used the concept «νεῦρον» to designate LCF (1844LittréÉ). It is not known...

ILIOTIBIAL TRACT & LCF

ILIOTIBIAL TRACT & LCF There is an opinion that the iliotibial tract, like the ligamentum capitis femoris (LCF), provides pressing of the acetabulum to the lower surface of the femoral head. I think that this is not true. The tract is located above and lateral to the center of rotation of the hip joint. Its force vector, like the force vector of the abductor group of muscles, presses the acetabulum to the upper part of the femoral head, which increases the load on it. The ligamentum capitis femoris acts in the opposite direction. Below is a diagram for a single-support position. #ligamentum_teres #hip #biomechanics #ligamentum_capitis_femoris Publication in the facebook group 04/12/2025. ...

Pathological Changes of LCF

Version : 20240419 RESULT OF PATHOLOGICAL CHANGE OF LCF 1. Absence of detectable changes 2. Elongation 3. Shortening 4. Thinning (hypotrophy) 5. Thickening (hypertrophy) 6. Disappearance 7. Impingement (within the joint space) 8. Compression (in the fossa of the acetabulum) 9. Marginal defect 10. Distally detached fragment 11. Proximally detached fragment 12. Two-fragments injury (in the midsection) 13. Avulsion-fracture of the distal end 14. Avulsion-fracture of the proximal end 15. Subsynovial avulsion of the distal end 16. Subsynovial avulsion of the proximal end 17. Synovial sheath 18. Partial distal end detachment 19. Partial proximal end detachment 20. Partial subsynovial injury 21. Complete subsynovial injury 22. Combination of pathological changes PATHOMORPHOLOGICAL CHANGES OF LCF 1. Edema 2. Dystrophic change in the stroma 3. Total dystrophic change 4. Metaplasia 5. Sclerosis 6. Hyalinosis 7. Fibrosis ...

Load on LCF

Version : 20240419 Magnitude of LCF Load 1. Optimally loaded 2. Partially loaded 3. Unloaded 4. Excessively loaded (overloaded) Reasons for Increased Load on LCF 1. Increase in effective body weight 2. Decrease in the lever arm of the abductor muscle group 3. Decrease in the strength of the abductor muscle group 4. Increase in the lever arm of body weight 5. The presence of a dynamic component (walking, running, jumping) Reasons for Decreased Load on LCF 1. Decrease in body weight 2. Increase in the lever arm of the abductor muscle group 3. Increase in the strength of the abductor muscle group 4. Decrease in the lever arm of body weight 5. Absence of dynamic component (walking, running, jumping) Keywords: ligamentum capitis femoris, ligament of head of femur , round ligament, ligamentum teres, classification, functions, dysfunction, l oad ...

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