Skip to main content

2019ZelongS_YongkaiW

 

Invention: Zelong S, Jinchuan S, Yongkai W. Femoral head round ligament cutting hook CN Application 211131290U.


Femoral head round ligament cutting hook

Application CN201922013314.6U events 

2019-11-20 Application filed by Individual

2019-11-20 Priority to CN201922013314.6U

2020-07-31 Application granted

2020-07-31Publication of CN211131290U

Status Expired - Fee Related

2029-11-20 Anticipated expiration

Abstract

The utility model discloses a femoral head ligament cutting hook, including the handle, hollow out construction is installed to one side of handle, and cutting structure is installed to handle one end, and the blunt piece of thickening is installed to cutting structure's both sides. The utility model discloses avoid the structure of damage to have: the acetabulum and important structures such as cartilage, labrum, nerves and blood vessels of the acetabulum have the possibility of bone residue formation in the process of taking out the head less or dislocation, because the bone residue formation can influence the hip joint replacement effect, the device is particularly suitable for half hip replacement, the minimally invasive approaches such as DAA (direct anterior approach) approach and Super-Path approach have small visual field, the femoral head is difficult to take out, the femoral head round ligament cutting device is safer and more convenient to use, the round ligament is cut by adopting a cutting edge at a concave part, the device is mainly used for protecting the acetabulum, the elastic design is adopted at the far end, the device can better enter the acetabulum, and the device is simple, convenient and easy to.

Claims (7)

1. The utility model provides a femoral head ligament cutting hook, includes handle (1), its characterized in that, hollow out construction (4) are installed to one side of handle (1), cutting structure (2) are installed to handle (1) one end, thickening blunt piece (3) are installed to the both sides of cutting structure (2).

2. The round ligament of femoral head cutting hook according to claim 1, wherein the handle (1) and the thickening blunt block (3) both have the effect of thickening and blunt, and the length of the handle (1) and the thickening blunt block (3) is 0.8 cm.

3. The ligamentum capitis cutting hook according to claim 1, wherein the handle (1) and the thickening blunt block (3) are in a tip-rolled, smooth and blunt shape, and the cutting structure (2) is in an arc-shaped structure and fits the gap between the acetabulum and the femoral head.

4. The round ligament cutting hook of femoral head according to claim 1, wherein the cutting structure (2) is made of elastic metal, and the distal end of the cutting structure (2) is shaped to be close to the acetabulum.

5. The femoral head ligamentum teres cutting hook according to claim 1, wherein the cutting structure (2) has an arc length of 6-7cm and the handle (1) has a length of 18-20 cm.

6. The round ligament cutting hook of femoral head according to claim 1, wherein the handle (1) is made of hard metal, and the hollowed-out structure (4) is fixedly connected with the handle (1).

7. The round ligament of femoral head cutting hook according to claim 1, wherein the cutting structure (2) is sharp on one side of the cutting edge, and a protective sleeve with the same shape as the cutting structure (2) is arranged on the outer side of the cutting structure (2).

Description

Femoral head round ligament cutting hook

Technical Field

The utility model relates to the field of medical treatment, in particular to femoral head round ligament cutting hook.

Background

The hip joint replacement is a common orthopedic operation, the femoral head needs to be taken out by dislocation in the operation, the round ligament of the femoral head is one of the blocking factors for smoothly taking out the femoral head, the round ligament of the femoral head can block when the femoral head is taken out, important structures cannot be damaged when the femoral head is taken out, if half hip replacement is carried out, acetabulum, cartilage, labrum and the like also need to be protected, the round ligament of the femoral head cannot be cut off by the conventional head taking device, or the round ligament of the femoral head is cut by using a sharp instrument, so that important tissues are not protected. At present, the femoral head extractor is pulled, rotated or violently pried by utilizing a lever principle, so that the extraction is time-consuming and labor-consuming, and necessary injury is easily caused.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a femoral head round ligament cutting hook, possible under the condition of protection acetabulum, cut off round ligament, the supplementary femoral head that takes out.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a femoral head round ligament cutting hook, the electric iron comprises a handle, hollow out construction is installed to one side of handle, cutting structure is installed to handle one end, the blunt piece of thickening is installed to cutting structure's both sides.

As an optimal technical scheme of the utility model, the handle all has the effect of increasing thick blunt with the blunt piece that increases, the handle is 0.8cm with the blunt piece length that increases.

As an optimal technical scheme of the utility model, the handle with increase thick blunt piece for terminal roll-over, slick and sly, blunt shape, the cutting structure is arc structure and the clearance between adaptation acetabular bone, the femoral head.

As an optimal technical scheme of the utility model, the cutting structure uses elastic metal to form as the material preparation, the distal end shape of cutting structure is close with the acetabulum.

As a preferred technical proposal of the utility model, the arc length of the cutting structure is 6-7cm, and the length of the handle is 18-20 cm.

As an optimal technical scheme of the utility model, the handle is formed for the material preparation by hard metal, hollow out construction and handle fixed connection.

As an optimal technical scheme of the utility model, the cutting structure is sharp for edging one side, the protective sheath the same with cutting structure shape is installed in the outside of cutting structure.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses avoid the structure of damage to have: the acetabulum and important structures such as cartilage, labrum, nerves and blood vessels of the acetabulum have the possibility of bone residue formation in the process of taking out the head less or dislocation, because the bone residue formation can influence the hip joint replacement effect, the device is particularly suitable for half hip replacement, the minimally invasive approaches such as DAA (direct anterior approach) approach and Super-Path approach have small visual field, the femoral head is difficult to take out, the femoral head round ligament cutting device is safer and more convenient to use, the round ligament is cut by adopting a cutting edge at a concave part, the device is mainly used for protecting the acetabulum, the elastic design is adopted at the far end, the device can better enter the acetabulum, and the device is simple, convenient and easy to.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic front structural view of the present invention;

in the figure: 1. a handle; 2. cutting the structure; 3. thickening a blunt block; 4. and a hollow structure.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-3, the utility model provides a femoral head round ligament cutting hook, including handle 1, hollow out construction 4 is installed to one side of handle 1, and cutting structure 2 is installed to handle 1 one end, and thickening blunt piece 3 is installed to cutting structure 2's both sides.

Further, handle 1 and increase thick blunt piece 3 and all have the effect that increases thick blunt, and handle 1 and increase thick blunt piece 3 length are 0.8cm, prevent that cutting mechanism 2 can damage the structure in the front.

Handle 1 and thickening blunt piece 3 are terminal turn-ups, slick and sly, blunt shape, and cutting structure 2 is arc structure and the clearance between adaptation acetabulum, the femoral head, makes cutting structure 2 better to the protection of other structures when the cutting through handle 1 and thickening blunt piece 3.

Cutting structure 2 uses elastic metal to make as the material, and cutting structure 2's distal end shape is close with the acetabulum, and the preparation material through cutting structure 2 makes cutting structure 2's use more convenient.

The arc length of the cutting structure 2 is 6-7cm, the length of the handle 1 is 18-20cm, and the cutting structure 2 can flexibly extend into the joint gap through the arc length of the cutting structure 2.

The handle 1 is made of hard metal, the hollow-out structure 4 is fixedly connected with the handle 1, and the handle 1 is made of the manufacturing material so that the handle is more convenient to use.

Cutting structure 2 is sharp for edging one side, and the same protective sheath of cutting structure 2 shape is installed in cutting structure 2's the outside, and the shape through cutting structure 2 makes things convenient for the cutting.

Specifically, in the use process, the hollowed-out structure 4 is installed on one side of the handle 1 to prevent the handle 1 from slipping, the cutting structure 2 is installed at one end of the handle 1, both the handle 1 and the thickening blunt block 3 have the effect of thickening and dulling, the length of the handle 1 and the thickening blunt block 3 is 0.8cm, the cutting structure 2 is prevented from damaging the structure in front, if a normal acetabulum is formed, the handle 1 and the thickening blunt block 3 block the normal tissue, the cutting structure 2 only cuts round ligaments, the handle 1 and the thickening blunt block 3 are turned over at the tail ends, the cutting structure 2 is in a shape of a smooth and blunt head, the cutting structure 2 is in an arc structure and is adapted to the gap between the acetabulum and the femoral head, so that important structures can be protected, in hip hemireplacement, the significance of protecting the acetabulum, cartilage, labrum and the like is more prominent, the cutting structure 2 is sharp on one side of an opening edge, a protective sleeve in the same shape, the cutting structure 2 is driven to cut by thrust, a round femoral head ligament is slid in to cut, the cutting structure 2 is made of elastic metal, the shape of the far end of the cutting structure 2 is close to that of an acetabulum, the arc length is 6-7cm, the cutting structure is matched with the hip joint gap and flexibly extends into the joint gap to cut the round femoral head ligament, and the handle 1 is 18-20cm long and made of hard metal.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

External links

Zelong S, Jinchuan S, Yongkai W. Femoral head round ligament cutting hook. CN Application 211131290U, November 20, 2019. 2020. [patents.google.com, patentimages.storage.googleapis.com]

Authors & Affiliations

1) Song Zelong

2) Sun Jinchuan

3) Wang Yongkai

Keywords:

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, instrument, invention, utility model

                                                                    

NB! Fair practice / use: copied for the purposes of criticism, review, comment, research and private study in accordance with Copyright Laws of the US: 17 U.S.C. §107; Copyright Law of the EU: Dir. 2001/29/EC, art.5/3a,d; Copyright Law of the RU: ГК РФ ст.1274/1.1-2,7


ENDOPROSTHESES AND IMPLANTS 

Labels:

Comments

Post a Comment

Popular posts from this blog

Catalog. LCF of Extinct Species

Discussion of the LCF and morphological signs of its existence in extinct species.   Funston, G. F. (2024). Osteology of the two-fingered oviraptorid Oksoko avarsan (Theropoda: Oviraptorosauria). Zoological Journal of the Linnean Society, zlae011. [ academic.oup.com ] Hafed, A. B., Koretsky, I. A., Nance, J. R., Koper, L., & Rahmat, S. J. (2024). New Neogene fossil phocid postcranial material from the Atlantic (USA). Historical Biology, 1-20. [ tandfonline.com ] Kuznetsov, A. N., & Sennikov, A. G. (2000). On the function of a perforated acetabulum in archosaurs and birds. PALEONTOLOGICAL JOURNAL C/C OF PALEONTOLOGICHESKII ZHURNAL, 34(4), 439-448. [ researchgate.net ] Romer, A. S. (1922). The locomotor apparatus of certain primitive and mammal-like reptiles. Bulletin of the AMNH; v. 46, article 10. [ digitallibrary.amnh.org  ,  digitallibrary.amnh.org(PDF) ]    Słowiak, J., Brusatte, S. L., & Szczygielski, T. (2024). Reassessment of the enigmati...
Post a Comment
Read more

LCF in 2025 (November)

  LCF in 2025 ( November )   (Quotes from articles and books published in  October  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,...
Post a Comment
Read more

2025ChenJH_AcklandD

  The article by Chen JH, Al’Khafaji I, Ernstbrunner L, O’Donnell J, Ackland D. Joint contact behavior in the native, ligamentum teres deficient and surgically reconstructed hip: A biomechanics study on the anatomically normal hip (2025). The authors experimentally demonstrated the role of the ligamentum capitis femoris (LCF) in unloading the upper sector of the acetabulum and the femoral head. The text in Russian is available at the following link: 2025ChenJH_AcklandD . Joint contact behavior in the native, ligamentum teres deficient and surgically reconstructed hip: A biomechanics study on the anatomically normal hip By  Chen JH, Al’Khafaji I, Ernstbrunner L, O’Donnell J, Ackland D.     CONTENT [i]   Abstract [ii]   Introduction [iii]   Materials and methods [iv]   Results [v]   Discussion and Conclusion [vi]   References [vii]   Application [i]   Abstract Background The ligamentum teres is known to contribute to hip joint st...
Post a Comment
Read more

2012FrederickP_KelmanDC

   Invention (Patent): Frederick P, Belew K, Jasper L, Gatewood J, Gibson L, Masonis J, Cooper M, Kelman DC. Methods and apparatus for FAI surgeries.  US20120283840A1   (2012).   US20120283840A1 US Inventors: Phillip Frederick, Kevin Belew, Lauren Jasper, James Gatewood, Luke Gibson, John Masonis, Michael Cooper, David C. Kelman Current Assignee: Smith and Nephew Inc Worldwide applications 2010 KR JP RU BR CA US CN EP CN WO AU 2014 US 2016 AU 2017 AU Application US13/202,612 events: 2010-02-25 Заявка подана Smith and Nephew Inc 2010-02-25 Приоритет US13/202,612 2012-11-08 Публикация US20120283840A1 2014-12-02 Заявка удовлетворена 2014-12-02 Публикация US8900320B2 Статус: Активный 2031-06-08 Измененный срок действия   Methods and apparatus for FAI surgeries Phillip Frederick, Kevin Belew, Lauren Jasper, James Gatewood, Luke Gibson, John Masonis, Michael Cooper, David C. Kelman   Abstract A partial rim implant for an acetabulum in a pelvic bone comprise...
Post a Comment
Read more

1920FrazerJES

  Fragments from the book Frazer JES. Anatomy of the Human Skeleton (1920). The author describes anatomy, embryology, development, and attachment of the ligamentum capitis femoris (LCF).   Fig. 104. — Outer view of the acetabular and ischio-pubic regions. A. is a region on the bone in front of the position of Quadratus femoris which is in relation with the tendon of Obturator externus and some loose fibro-fatty tissue that permits changes in place of the tendon with movement of the joint. B. is a sloping surface of bone which supports Pectineus but does not give origin to it; the surface extends out to the ilio-pectineal eminence where the fascia covering the Pectineus (pubic portion of fascia lata) reaches the bone at a. The front of the eminence is roughened by fibres belonging to the pubo-femoral group of ligaments. These are separated from the ilio-femoral set by an interval, apparent on the bone and marking the limit of the secondarily added pubic area of articular surfac...
Post a Comment
Read more

1997McCandlissR

    Invention  ( Patent ) : McCandliss R. Coaxial ligamented hip prosthesis. US5702474A (1997) .   US2765787A United States Inventor: Robert McCandliss Current Assignee: Individual Worldwide applications 1996 US Application US08/589,644 events: 1996-01-22 Application filed by Individual 1996-01-22 Priority to US08/589,644 1997-12-30 Application granted 1997-12-30 Publication of US5702474A 2016-01-22 Anticipated expiration Status Expired - Fee Related   Coaxial ligamented hip prosthesis Robert McCandliss Abstract A hip prosthesis is disclosed herein intended to be fitted into a skeletal pelvis socket and which has a replacement socket that includes a metal semi-spherical acetabulum base with a plastic acetabulum liner for movably holding a spherical ball against the liner by a ligament rod. The rod passes through a head of a stem implanted into a femur and terminates with a ligament anchor plate fitted in the acetabulum base via an eyelet and pin connection. A ...
Post a Comment
Read more

2025VertesichK_ChiariC

   Content [i]   Annotation [ii]   Original text (in  German) [iii]   References [iv]   Source  &  links [v]   Notes [vi]   Authors & Affiliations [vii]   Keywords [i]   Annotation Fragments from the article: Vertesich K, Noebauer-Huhmann IM, Schreiner M, Schneider E, Willegger M, Böhler C, Windhager R, Chiari C. The position of the femoral fovea can indicate hip instability and highly correlates with lesions of the ligamentum teres: an observational study (2025). The authors discuss the diagnosis of pathology of the ligamentum capitis femoris (LCF) based on radiological & MRI data. The text in Russian is available at the following link: 2025VertesichK_ChiariC . [ii]   Original text (in   German)   The position of the femoral fovea can indicate hip instability and highly correlates with lesions of the ligamentum teres: an observational study Klemens Vertesich, Iris-Melanie Noebauer-Huhmann, Marku...
Post a Comment
Read more

2024MiglioriniF_MaffulliN

   Abstract and table 4 ( overview of LCF tear classification ) of the article Migliorini F et al. The ligamentum teres and its role in hip arthroscopy for femoroacetabular impingement: a systematic review.  (2024). Translation into Russian is available at the link: 2024MiglioriniF_MaffulliN . Systematic Review / Open access / Published: 20 December 2024 The ligamentum teres and its role in hip arthroscopy for femoroacetabular impingement: a systematic review Filippo Migliorini, Federico Cocconi, Tommaso Bardazzi, Virginia Masoni, Virginia Gardino, Gennaro Pipino, Nicola Maffulli  Journal of Orthopaedics and Traumatology  volume 25, Article number: 68 (2024)    Abstract Background The ligamentum teres (LT) has received attention in patients undergoing hip arthroscopy (HA) for femoroacetabular impingement (FAI). Indeed, a better understanding of the function of the LT and its implications for cli...
Post a Comment
Read more

EMBRYOLOGY AND DEVELOPMENT

  embryology  AND  development ( embryology,  development . .. )  1841BarkowHCL  The author discusses development, anatomy and function of the LCF.  1864RambaudA_RenaultC  The authors describe the development of the hip joint in children and mention the place of attachment of the LCF . 1878Welcke rH  In the  article, the aut hor di scusses the embryonic development of the  ligamentum capitis femoris (LCF) in hum ans a nd certain animals (pinnipeds, tapirs).  1880SchusterH   The article discusses the embryonic development of the  LCF in  humans  and some animals.  1889AmantiniC  Selected excerpts from the article examine the role of the LCF vessels in the blood supply to the femoral head.  1 894KeithA  The paper discusses the development, anatomy, strength, and presence of the ligamentum LCF in various monkeys.   1 905BardeenCR The author briefly discusses the emergence of the LCF....
Post a Comment
Read more

BIBLICAL DAMAGE

  Biblical damage (Artists and sculptors on the LCF damage described in the Bible:  painting, sculpture, icon, fresco, engraving…)     386Brescia_Casket  Bas-relief. Drawing depicting the circumstances and mechanism of the LCF injury. 6c.Vienna_Genesis   Miniature. Drawing depicting the circumstances and mechanism of the LCF injury. 10c.Cross  Bas-relief. Drawing depi cting the circumstances and mechanism of the LCF injury.  1000Jacob&Archangel  Fresco. Drawing depicting the circumstances and mechanism of the LCF injury.  1050Aelfric     Drawing depicting the circumstances and mechanism of the LCF injury.  1140St.Marie-Madeleine   Capital. Drawing depicting the circumstances and mechanism of the LCF injury.  1143 Palantine_Chapel   Mosaic . Drawing depicting the circumstances and mechanism of the LCF injury. 1213L’histoire_ancienne.   M iniature . Drawing depicting the circumstances and mecha...
Post a Comment
Read more