DE2527460A1 - Curved bone pin aligning thighbone parts - with flattened disc at distal end projecting out of bone - Google Patents

Curved bone pin aligning thighbone parts - with flattened disc at distal end projecting out of bone

Info

Publication number
DE2527460A1
DE2527460A1 DE19752527460 DE2527460A DE2527460A1 DE 2527460 A1 DE2527460 A1 DE 2527460A1 DE 19752527460 DE19752527460 DE 19752527460 DE 2527460 A DE2527460 A DE 2527460A DE 2527460 A1 DE2527460 A1 DE 2527460A1
Authority
DE
Germany
Prior art keywords
nail
bone
plate
flattened
curved
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19752527460
Other languages
German (de)
Inventor
Karl Rayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RAYER KG KARL
Original Assignee
RAYER KG KARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RAYER KG KARL filed Critical RAYER KG KARL
Priority to DE19752527460 priority Critical patent/DE2527460A1/en
Priority to DE7519604U priority patent/DE7519604U/en
Publication of DE2527460A1 publication Critical patent/DE2527460A1/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72Intramedullary pins, nails or other devices
    • A61B17/7208Flexible pins, e.g. ENDER pins

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The curved lone pin, the proximal part of which is used to align the broken parts of the thigh bone whilst the distal zone projects out of the bone and is equipped with a flattened zone. This flattened zone is achieved by pressing out a circular plate (2) onto the end of the nail. One surface of the flattened area lies at a tangent to or outside of the nail generatrix. Pref. the plate can be welded on and can be fixed or hinged to the pin, it can have a concave inner surface and a convex outer surface. Alternatively the distal pin end can finish in a very short nail profile cylindrical piece. It prevents excessive specific pressure of the nail end on the bone. Hinged construction and largest possible surface area helps to distribute pressure over larger area.

Description

Gekrümmter Knochennagel Die Erfindung betrifft einen gekrümmten Knochennagel zum Ausrichten der Knochenteile von gebrochenen menschlichen Oberschenkeln im proximalen Bereich, wonach der distale Bereich mit einer aus dem Knochen herausragenden Abflachung versehen ist, Dieses Bekannte wird erfindungsgemäß durch das Bessere ersetzt, wonach die Abflachung am Ende des Nagels kreisrunden Profils von einer Platte bzw. einem Plattenstück gebildet, zoBo angequetscht ist, von der bzw, von dem eine der beiden Plächen eine Nagelmantellinie tangiert bzw, ausserhalb von dieser verläuft, Der Erfinder dieser îlassnaffllle entnahm dem Verhalten der Patienten, dass das aus dem Knochen herausragende Nagelende Beschwerden bereitet, Diese gehen möglichweise davon aus, dass bei Bekanntem (zoBo Knochennägel nach OS 2 341 439) die spezifischen Drucke zu hoch sind, mit denen das Nagelende am Knochen anliegt, Das Ziel der Erfindung besteht darin, die Auflage der Platte auf dem Knochen stufenlos auf den Nagel schaft und bzw, oder auf einen Endzapfen übergehen zu lassen, ferner die mutmaßliche D{ickabertragungsfläche optimal gross zu gestalten0 Die Platte kann auf das Nagelende aufgeschweisst oder aber auch kippbar gelenkig auf dem Nagelende axial gesichert befestigt ein in breiterer Ausgestaltung der Erfindung ist die Platte kreisrund oder - von der Nagelachse aus gesehen -innen konkav und demnach aussen konvex gewölbt, z>BO in Kombination mit der Anregung, dass der aus dem Knochen herausragende Teil in ein sehr kurzes Zylinderstück des Nagelprofils endet, Von der Zeichnung werden Ausführungsbeispiele geoffenbart, Die Fig 1 und 2 zeigen eines in Draufsicht und in Seitenansicht, ebenso die Fig 3 und 4, beide einstückig. Die Fig 5 und 6 veranschaulichen eine Variante mit auf das abgeplattete Nagelende aufgelöteter Druckplatte 2 die nach der Draufsicht von Fig 7 länglich geformt ist, jedoch nach den Fig 8 und 9 (Draufsicht und Seitenansicht) kreisrund gestaltet ist, Die Fig 10 und 11 zeigen (in Draufsicht und Seitenansicht) eine von der zylindrischen Verdickung gegen axiales Verschieben gesicherte, mittels der Krägen 2a, 2b drehbar gelagert Platte, was auch dem Querschnitt nach Fig 12 entnehmbar ist, Die Fig 13, 14 und 12 stellen Querschnitte von weiteren Varianten dar, Immer ist die Knochenanlagefläche Plan oder von der Nagel achse aus diametral gesehen (im Gegensatz zu Bekannten) nach aussen abgesetzt0 Dies gilt auch für das besonders interessante Ausführungsbeispiel nach Fig 15, bei der sich die :!wölbung der an das Nagelende angeschweissten Platte 2 der Knochenkontur angeglichen isto In allen Fällen ist das Nagelhandhabegerät des Chirurgen besonders leicht ansetzbar, Curved Bone Nail The invention relates to a curved bone nail for aligning the bone parts of broken human thighs in the proximal Area, after which the distal area with a flat protruding from the bone is provided, this known is replaced according to the invention by the better, after which the flattening at the end of the nail circular profile of a plate or a Plate piece is formed, zoBo is squeezed by or by which one of the two Plächen is tangent to or outside of a nail jacket line, which The inventor of this îlassnaffllle inferred from the behavior of the patient that this came from the bone causes protruding nailing complaints, these may go it is assumed that the specific Pressures are too high with which the nail end rests against the bone, the aim of the invention consists in placing the plate on the bone steplessly on the nail shaft and or, or to pass over to an end pin, furthermore the presumed thickness transfer surface to make it optimally large0 The plate can be welded onto the end of the nail or also tiltably articulated attached axially secured to the nail end In a broader embodiment of the invention, the plate is circular or - of the Seen from the nail axis - concave on the inside and therefore convex on the outside, z> BO in combination with the suggestion that the part protruding from the bone in a very short cylinder section of the nail profile ends, from the drawing are exemplary embodiments disclosed, Figures 1 and 2 show one in plan view and in side view, as well Figures 3 and 4, both in one piece. FIGS. 5 and 6 illustrate a variant with pressure plate 2 soldered onto the flattened nail end according to the plan view 7 is elongated, but according to FIGS. 8 and 9 (top view and side view) is designed circular, The Figures 10 and 11 show (in plan view and side view) one of the cylindrical thickening against axial displacement secured, rotatably mounted by means of the collars 2a, 2b plate, which also the cross-section according to Fig. 12 can be removed, Figs. 13, 14 and 12 represent cross-sections of further Variants represent, the bone contact surface is always plan or from the nail axis seen diametrically (in contrast to acquaintances) set off from the outside0 This also applies for the particularly interesting embodiment according to FIG. 15, in which the :! The curvature of the plate 2 welded to the end of the nail is adjusted to the bone contour isto In all cases, the surgeon's nail handling device is particularly easy to attach,

Claims (1)

An sprüche: Gekrümmter Knochennagel zum Ausrichten der gebrochenen zeile von menschlichen Oberschenkeln im proximalen Bereich, z.B. der Art nach OS 2 341 439, wonach der distale Bereich mit einer aus dem Knochen herausragenden Abflachung versehen ist, dadurch gekennzeichnet, daß die Abflachung am Ende des Nagels kreisrunden Profils von einer Platte (2) bzw; einem Plattenstück (1a) gebildet z.B. angequetsoht ist, von der bzw0 von dem eine der beiden Flächen eine Nagelmantellinie tangiert bzw. außerhalb von dieser verläuft. Claims: Curved bone nail to align the broken one line of human thighs in the proximal area, e.g. of the type according to OS 2 341 439, according to which the distal area has a flat protruding from the bone is provided, characterized in that the flattening at the end of the nail is circular Profile of a plate (2) or; a plate piece (1a) formed e.g. is, of which or of which one of the two surfaces is tangent to a nail jacket line or runs outside of this. 2.) Nagel nach Anspruch 1, dadurch gekennzeichnet, daß die Platte auf das Nagelende aufgeschweißt ist.2.) Nail according to claim 1, characterized in that the plate is welded to the end of the nail. 3.) Nagel nach Anspruch 1, dadurch gekennzeichnet, daß die Platte kippbar gelenkig auf dem Nagelende axial gesichert befestigt ist.3.) Nail according to claim 1, characterized in that the plate is tiltably articulated secured axially on the nail end. 40) Nagel nach einem der AnsprUche t bis 3, dadurch gekennzeichnet, daß die Platte kreisrund ist.40) nail according to one of claims t to 3, characterized in that that the plate is circular. 50) Nagel nach einem der AnsprUche 1 bis 4, dadurch gekennzeichnet, daß die Platte von der Nagelachse aus gesehen innen konkav und demnach außen konvex gewölbt ist.50) nail according to one of claims 1 to 4, characterized in that that the plate, seen from the nail axis, is concave on the inside and therefore convex on the outside is arched. 6o) Nagel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der aus dem Knochen herausragende Teil in ein sehr kurzes Zylinderstück des Nagelprofils endet.6o) nail according to one of claims 1 to 5, characterized in that that the part protruding from the bone is inserted into a very short cylinder of the Nail profile ends. L e e r s e i t eL e r s e i t e
DE19752527460 1975-06-20 1975-06-20 Curved bone pin aligning thighbone parts - with flattened disc at distal end projecting out of bone Pending DE2527460A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19752527460 DE2527460A1 (en) 1975-06-20 1975-06-20 Curved bone pin aligning thighbone parts - with flattened disc at distal end projecting out of bone
DE7519604U DE7519604U (en) 1975-06-20 1975-06-20 Curved bone nail

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7519604 1975-06-20
DE19752527460 DE2527460A1 (en) 1975-06-20 1975-06-20 Curved bone pin aligning thighbone parts - with flattened disc at distal end projecting out of bone

Publications (1)

Publication Number Publication Date
DE2527460A1 true DE2527460A1 (en) 1977-01-13

Family

ID=46319945

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19752527460 Pending DE2527460A1 (en) 1975-06-20 1975-06-20 Curved bone pin aligning thighbone parts - with flattened disc at distal end projecting out of bone
DE7519604U Expired DE7519604U (en) 1975-06-20 1975-06-20 Curved bone nail

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE7519604U Expired DE7519604U (en) 1975-06-20 1975-06-20 Curved bone nail

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DE (2) DE2527460A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069048A2 (en) * 1981-06-18 1983-01-05 Mecron Medizinische Produkte Gmbh Nail for fractured femur neck fixation
JPS5836544A (en) * 1981-06-18 1983-03-03 メクロン・メデイツイ−ニツシエ・プロドウクテ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Elastic bone nail for restoring femoral breakage
DE3144210A1 (en) * 1981-11-04 1983-05-11 Mecron Medizinische Produkte Gmbh, 1000 Berlin Device for treating a fracture
EP0094489A2 (en) * 1982-05-18 1983-11-23 HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung Kiel Bone nail for the treatment of fractures of the proximal part of the femur, and the appropriate tools
EP0311556A2 (en) * 1987-10-06 1989-04-12 Mecron Medizinische Produkte Gmbh Intramedullary nail for the treatment of bone fractures and intrument therefor
US5084053A (en) * 1989-10-25 1992-01-28 Ender Hans G Bone nail and tool for the connection to the distal end area of such a bone nail

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429640A (en) * 1992-11-27 1995-07-04 Clemson University Intramedullary rod for fracture fixation of femoral shaft independent of ipsilateral femoral neck fracture fixation
WO2006066440A2 (en) 2004-12-23 2006-06-29 Staeubli Hans Ulrich Bone fixing device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069048A2 (en) * 1981-06-18 1983-01-05 Mecron Medizinische Produkte Gmbh Nail for fractured femur neck fixation
JPS5836544A (en) * 1981-06-18 1983-03-03 メクロン・メデイツイ−ニツシエ・プロドウクテ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Elastic bone nail for restoring femoral breakage
EP0069048A3 (en) * 1981-06-18 1983-08-03 Mecron Medizinische Produkte Gmbh Nail for fractured femur neck fixation
DE3144210A1 (en) * 1981-11-04 1983-05-11 Mecron Medizinische Produkte Gmbh, 1000 Berlin Device for treating a fracture
EP0094489A2 (en) * 1982-05-18 1983-11-23 HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung Kiel Bone nail for the treatment of fractures of the proximal part of the femur, and the appropriate tools
EP0094489A3 (en) * 1982-05-18 1984-11-07 Howmedica International, Inc. Zweigniederlassung Kiel Bone nail for the treatment of fractures of the proximal part of the femur, and the appropriate tools
EP0311556A2 (en) * 1987-10-06 1989-04-12 Mecron Medizinische Produkte Gmbh Intramedullary nail for the treatment of bone fractures and intrument therefor
EP0311556A3 (en) * 1987-10-06 1990-01-10 Mecron Medizinische Produkte Gmbh Intramedullary nail for the treatment of bone fractures and intrument therefor
US4981481A (en) * 1987-10-06 1991-01-01 Mecron Medizinische Produkte Gmbh Marrow nail for the treatment of bone fractures according to the marrow cavity nailing procedure and marrow nail tool
US5084053A (en) * 1989-10-25 1992-01-28 Ender Hans G Bone nail and tool for the connection to the distal end area of such a bone nail
AT395940B (en) * 1989-10-25 1993-04-26 Ender Hans Georg BONE NAIL AND TOOL FOR THE SAME

Also Published As

Publication number Publication date
DE7519604U (en) 1975-11-20

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