1994(a)ArkhipovSV

Unipolar endoprosthesis of hip joint

(Однополюсной эндопротез тазобедренного сустава конструкции С.В. Архипова)

Patent Application RU94038343A

Inventor
Сергей Васильевич Архипов

Original Assignee
Sergey Vasilyevich Arkhipov

Application 94038343/14A events
1994-10-11 Application filed by С.В. Архипов
1994-10-11 Priority to RU94038343/14A
1996-08-20 Publication of RU94038343A

Claims

1. Unipolar endoprosthesis of hip joint of the design of S.V. Arkhipov comprising a removable head and a leg, fixedly connected by means of conjugated conical surfaces, in the form of a rod having a shank in the distal part, and in the proximal part, a support platform with a neck fixed to it at an angle to the longitudinal axis of the leg, having a conical surface connected to the corresponding conical hole in the removable head, characterized in that the removable head contains a through hole through which a flexible artificial ligament of the head passes, one end motionless with of the connections with the element attaching ligaments to bones and the other with a leg, it is fixedly attached by its ends artificial ligament flexible legs which their second ends are attached to the element attaching ligaments to bones, wherein one number of legs and a tangles.

2. The endoprosthesis according to claim 1, characterized in that the removable head from the side of its connection with the neck is covered by a flexible artificial ligament in the form of a loop, with dimensions that ensure its retention on the head, and fixed at its ends to the ligament fastening element to the bones.

3. The endoprosthesis according to claim 1, 2, characterized in that a groove is made on the surface of the conical opening of the removable head, in which a flexible artificial ligament of the head passing through the through hole in the removable head is fixedly fixed between the conical surface of the neck and the surface of the groove.

4. The endoprosthesis according to claim 1-3, characterized in that the leg has a cavity, and the shank is made in the form of a collet, which includes a screw with a spacer wedge, the screw protruding above the surface of the proximal end of the leg, on the outer surface of the shank are made of rotational screw grooves , oblique transverse protrusions and depressions.

5. Endoprosthesis according to 1-4 were, characterized in that the collet has three lobes formed with three screw-sectional view taken along the longitudinal axes of symmetry derotation helical grooves, the width of the grooves is made commensurate with a lobe width.

6. Endoprosthesis according p.1-5, characterized in that the proximal portion of the stem has a porous coating thereon and arranged derotation protrusions.

7. Endoprosthesis according p.1-6, characterized in that the proximal portion of the stem has tapped holes.

8. Endoprosthesis according p.1-7, characterized in that the support platform has two components, one of which is perpendicular to the longitudinal axis of the leg and the other of the longitudinal axis of the neck, and the support platform covers the top end of the proximal femur.

9. Endoprosthesis according p.1-8, characterized in that the fastening element is formed ligaments to bones in the form of a rod having at one end of the longitudinal slits, and at the other end through a transverse bore and made of a metal with shape memory.

10. The endoprosthesis according to claim 1 to 9, characterized in that the proximal part of the removable head has the shape of a truncated ball, the middle part is the shape of a cylinder, and the distal shape of the truncated cone, with the large base facing the neck of the endoprosthesis leg.

11. An endoprosthesis according to claim 1-10, characterized in that the proximal part of the removable head has longitudinal recesses.

Description of the invention

Description in Russian is available at the link: 1994(a)АрхиповСВ (the blog has a translation function).

External links:

Arkhipov S.V. Unipolar endoprosthesis of hip joint designed by S.V. Arkhipova. Application for invention №94038343 (038228) dated October 11, 1994. [in Russian] (Архипов СВ. Однополюсной эндопротез тазобедренного сустава конструкции С.В. Архипова. Заявка на изобретение №94038343 (038228) от 11.10.1994.) [patents.google]

Keywords:

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, endoprosthesis, subtotal, unipolar, hip joint, hip

BLOG CONTENT

ENDOPROSTHESES AND IMPLANTS

Comments

1802PalmeraniÁ

Palmerani Á , drawing Jacob wrestling with the angel (1802 ). Depicting the circumstances and mechanism of the ligamentum capitis femoris (LCF) injury based on the description in the Book of Genesis: 25 And Ja cob was left alone; and there wrestled a man with him until the breaking of the day. 26 And when he saw that he could not prevail against him, he struck against the hollow of his thigh ; and the hollow of Jacob's thigh was put out of joint, as he was wrestling with him. … 33 Therefore do the children of Israel not eat the sinew which shrank, which is upon the hollow of the thigh, unto this day; because he struck against the hollow of Jacob's thigh on the sinew that shrank. ( 1922LeeserI , Genesis (Bereshit) 32:25-26,33) More about the plot in our work: Ninth month, eleventh day ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ). Ángel Palmerani – Jacob Wrestling with the Angel ( 1802); original in the a...

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1934BökerH

Content [i] Annotation [ii] Original in German [iii] Illustrations [iv] Source & links [v] Notes [vi] Authors & Affiliations [vii] Keywords [i] Annotation Fragments from the article: Böker H. Die Bedeutung des Ligamentum teres femoris (1934). The author discusses the attachment, role and movement of the ligamentum capitis femoris (LCF). At this point, we have only fragments of this remarkable work. The text in Russian is available at the following link: 1934BökerH . [ii] Original in German «In einer Untersuchung über die Bedeutung des Ligamentum teres femoris zeigt Böker, daß der Bewegungsraum dieses „Bandes“ mit dem Ausdehnungsbereich der Fossa acetabuli übereinstimmt.» (1939 NauckET ) . Einzig Böker [1] beschrie 1934 In einem Artikel Ober die Bedeutung des Ligamentum teres femoris die normale Stellung der Fovea in Relation zur Fossa acetabul. Er stellt fest, dass die...

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LCF in 2026 (September ) (Quotes from articles and books published in September 2026 mentioning the ligamentum capitis femoris) Goetz, J. E., Hockman, J., & Willey, M. C. (2026). Rabbit models of hip dysplasia: a narrative review. Laboratory animal research , 42 (1), 32. [i] link.springer.com Kahana-Rojkind, A. H., Strok, M. J., Walsh, E. G., Quesada-Jimenez, R., Kuhns, B. D., & Domb, B. G. (2026). Factors Associated With Return to Sport at Minimum 10-Year Follow-up in Athletes With Borderline Hip Dysplasia Undergoing Hip Arthroscopy With Capsular Plication. Orthopaedic Journal of Sports Medicine , 14 (9), 23259671261451218. [ii] journals.sagepub.com Stanard, I., Almhanna, H., Al-Mahmodi, A. M. M., Kilroy, D., & Kumar, A. H. (2026). Comparative Analysis of Vascular Density in the Femoral Head Ligament of the Dog, Sheep, and Goat. [iii] oajr.org , researchgate.net Hirt, J., Roshardt, ...

1785SandifortE

Fragments from the book Sandifort E. Descriptio ossium hominis. (1785). The author briefly writes about the attachment of the ligamentum capitis femoris (LCF). Quote p. 104 [Lat] Os ischium… … Qua spectat pelvim (a) os ischion æquabile est, modice cavatum, ab exteriore profunde sinuatum (b). Sinus hic, quem acetabulum vocant, maximus, sere rotundus, est, dividique potest in partes duas, alteram semilunarem quodammodo, cartilagine tectam (c), hinc æquabilem, alteram altius excavatam, asperam (d), glandulæ muciparæ sedem præbentem, & educentem ligamentum teres, quod capiti ossis femoris infigitur (e). … Quote p. 108-109 [Lat] Femoris os … … Caput magnum, globosum, cartilagine lævi incrustatum, oblique positum (b), id est, sursum introrsumque tendens, magnitudine & figura cum acetabulo (i) congruens, intra illud admittitur, illique alligatur per ligamentum teres, quod firmiter adhæret ab altera parte acetabulo, ab altera sinui profundo, inæquabili, qui in dicto capite est (k...

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THE FIRST ANIMALS According to molecular clock data, the separation of the Animal Kingdom from the Plant Kingdom occurred 1609±60 Ma (2004HedgesSB_ShoeJL). Molecular estimates indicate that the last common ancestor of multicellular representatives of the fauna (Metazoa) was Neoproterozoic, most likely younger than 800 million years (2015PisaniD_LiuAG). Biomarkers of metazoan living systems identified in sedimentary deposits indicate their presence in the seas since the Cryogenian period (2018ZumbergeJA_SummonsRE), which began around approximately 720 Ma (2023CohenKM_CarN). Multicellular animals were part of early Ediacaran ecosystems and are found below layers dated to 632.5 ± 0.5 Ma (2007Yin_LHuJ). The oldest fossil of a multicellular organism resembling a sponge (Porifera) is about 600 Ma (2015YinZ_TafforeauP). The last Neoproterozoic glaciation (about 582 Ma) coincides with the appearance of complex organisms in the fossil record (2007BowringSA_AllenPA). Ev...

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LCF in 2025 ( December) (Quotes from articles and books published in December 2025 mentioning the ligamentum capitis femoris) Sarassa, C., Aristizabal, S., Mejía, R., García, J. J., Quintero, D., & Herrera, A. M. (2025). Intraosseous Tunneling and Ligamentum Teres Ligamentodesis “Teretization” to Enhance Stability in Congenital Hip Dislocation Surgery: Surgical Technique and Mid-Term Outcomes. Journal of Pediatric Orthopaedics , 10-1097. [i] journals.lww.com Kampouridis, P., Svorligkou, G., Spassov, N., & Böhme, M. (2025). Postcranial anatomy of the Late Miocene Eurasian hornless rhinocerotid Chilotherium. PLoS One , 20 (12), e0336590. [ii] journals.plos.org Burdette, T. N., Hsiou, C. L., McDonough, S. P., Pell, S., Ayers, J., Divers, T. J., & Delvescovo, B. Sidewinder syndrome associated with complete rupture of the ligamentum capitis ossis femoris in a horse. Eq...

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LCF in 2025 ( November ) (Quotes from articles and books published in November 2025 mentioning the ligamentum capitis femoris) Awad, A., Rizk, A., ElAlfy, M., Hamed, M., Abdelghany, A. M., Mosbah, E., ... & Karrouf, G. (2025). Synergistic Effects of Hydroxyapatite Nanoparticles and Platelet Rich Fibrin on Femoral Head Avascular Necrosis Repair in a Rat Model. Journal of Biomedical Materials Research Part B: Applied Biomaterials , 113 (11), e35672. [i] onlinelibrary.wiley.com Loughzail, M. R., Aguenaou, O., Fekhaoui, M. R., Mekkaoui, J., Bassir, R. A., Boufettal, M., ... & Lamrani, M. O. (2025). Posterior Fracture–Dislocation of the Femoral Head: A Case Report and Review of the Literature. Sch J Med Case Rep , 10 , 2483-2486. [ii] saspublishers.com , saspublishers.com Vertesich, K., Noebauer-Huhmann, I. M., Schreiner, M., Schneider, E., Willegger...

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1899ParsonsFG

An excerpt from the article by Parsons FG. The joints of mammals compared with those of man: a course of lectures delivered at the Royal College of Surgeons of England (1899, pp. 301-306). The paper discusses the anatomy and presence of the ligamentum capitis femoris (LCF) in different animals. The author found in an experiment that in kangaroos, the LCF was stretched during hip extension. Below we publish an excerpt from the abstract and a critique of the lecture in the Lancet. THEJOINTS OF MAMMALS COMPARED WITH THOSE OF MAN: A COUBSE OF LECTURES DELIVERED AT THE ROYAL COLLEGE OF SURGEONS OF ENGLAND. By F. G. PARSONS, F.R.C.S., late Hunterian Professor. PART II.-JOINTS OF THE HIND LIMB. THE HIP JOINT. SOME of the chief points which attract attention in the hip joint of man are the three thickened parts of the capsule called the ilio-femoral, ischio-femoral, and pubo-femoral ligaments, as well as the intra-articular ligamentum teres running from the bottom of the ac...

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