DE735333C - Nail puller for bone nails with internal thread in the nail head - Google Patents

Nail puller for bone nails with internal thread in the nail head

Info

Publication number
DE735333C
DE735333C DES130899D DES0130899D DE735333C DE 735333 C DE735333 C DE 735333C DE S130899 D DES130899 D DE S130899D DE S0130899 D DES0130899 D DE S0130899D DE 735333 C DE735333 C DE 735333C
Authority
DE
Germany
Prior art keywords
nail
bone
internal thread
puller
spindle
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.)
Expired
Application number
DES130899D
Other languages
German (de)
Inventor
Hans Wilhelm Seidel
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.)
HANS WILHELM SEIDEL
Original Assignee
HANS WILHELM SEIDEL
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 HANS WILHELM SEIDEL filed Critical HANS WILHELM SEIDEL
Priority to DES130899D priority Critical patent/DE735333C/en
Application granted granted Critical
Publication of DE735333C publication Critical patent/DE735333C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
    • A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for intramedullary devices

Description

Nagelzieher für Knochennägel mit Innengewinde im Nagelkopf Es sind bereits Nagelzieher für Knochennägel, z. B. Oberschenkelhalsnägel, bekannt, die wie die üblichen Nagelzieher den Nagel-I;opf von außen mit zwei Backen umfassen.Nail puller for bone nails with internal thread in the nail head There are already nail pullers for bone nails, e.g. B. femoral neck nails, known to the like the usual nail pullers, grip the nail on the outside with two jaws.

Das Festklemmen der Backen erfolgt dabei durch einen Konus, der am Ende einer Gewindespindel zwischen den Backenhebeln angeordnet ist. Durch diese Gewindespindel wird bei ihrer Drehung zunächst das Fcst-I;lemmen der Backen, dann aber auch das Herausziehen des Nagels bewirkt.The jaws are clamped by a cone that is attached to the The end of a threaded spindle is arranged between the jaw levers. Through this As it rotates, the threaded spindle first clamps the jaws, then but also causes the nail to be pulled out.

Diese Bauart des Nagelziehers hat den Nachteil, daß vor seiner Anwendung der Nagelkopf ringsum freigelegt werden muß. This type of nail puller has the disadvantage that before its use the nail head must be exposed all around.

Um dies zu vermeiden, hat man bereits vorgeschlagen, die Stahlnägel an ihrem Kopfende mit einem Innengewinde zu versehen, in das der Nagelzieher eingeschraubt werden kann. Die Erfindung bezieht sich auf solche Nagelzieher und bezweckt, sowohl ein sicheres Halten des Nagels durch das eingeführte Gewinde als auch ein festes Aufliegen der Spindelführtmg auf dem Knochen zu gewährleisten. Demgemäß ist der Nagelzieher nach der Erfindung im N-esentlichen nach der Art bekannter Faschenkorkenzieher gebaut.To avoid this, it has already been proposed to use steel nails to be provided with an internal thread at its head end, into which the nail puller is screwed can be. The invention relates to such nail pullers and is aimed at both a secure hold of the nail by the inserted thread as well as a firm one Ensure that the spindle guide rests on the bone. Accordingly is the Nail puller according to the invention in general in the manner of known bottle corkscrews built.

Wie aus der Zeichnung ersichtlich. läßt sich die Spindel durch den Kopf g so drehen, daß der Gewindesatza in das Innengewinde des Knochennagels einläuft, bis sich der Ansatzb auf den Nagelkopf setzt. Die Oberflächen des Ansatzes und des Nagelkopfes sind aufeinander abgestimmt. Wird nunmehr durch den Handgriff / die Spindel aus ihrem Führungsrohr d herausgezogen, so setzt sich dessin Ende c auf dem Knochen auf, so daß ein sicheres Gegenlager gewogen ist, wenn beim Weiterdrehen des Handgriffes / der Nagel aus dem Knochen gezogen wird. As can be seen from the drawing. can the spindle through the Turn head g so that the thread seta runs into the internal thread of the bone nail, until the approachb sits on the nail head. The surfaces of the neck and the The nail head are matched to each other. Is now by the handle / the If the spindle is pulled out of its guide tube d, the end c is seated the bone so that a secure counter bearing is weighed when turning further the handle / nail is pulled out of the bone.

Durch das in dem Führungsrohr dd eingeschliffene Führungsstücke wird die Lage der Spindel gesichert. Through the guide pieces ground in the guide tube dd the position of the spindle secured.

Claims (1)

PATEXTANSPRUCH: Nagelzieher für Knochennägel, bestehend aus einer Gewindespindel, die am einen Ende die Nagelfaßvorrichtung, am anderen einen Handgriff zum Drehen trägt und in einer Führung angeordnet ist, die sich beim Nagelziehen auf dem Knochen abstützt, dadurch gekennzeichnet, daß die Nagelfaßvorrichtung aus einem Gewindestück («) besteht, das in ein Innengewinde des Knochennageis paßt, sowie aus einem Ansatz (b), der auf die Kopffläche des Knochennagels paßt, und daß außer dem Handgriff (g) zum Drehen der Spindel noch ein Muttergewinde mit Handhaben (1) zum axialen Verschieben der Spindel vorgesehen ist. CLAIM OF THE PATEX: Nail puller for bone nails, consisting of one Threaded spindle, which has the nail barrel device at one end and a handle at the other contributes to turning and is arranged in a guide that moves when pulling nails supported on the bone, characterized in that the nail holding device from a threaded piece («) that fits into an internal thread of the bone gnaw, as well as from an approach (b) which fits on the head surface of the bone nail, and that In addition to the handle (g) for turning the spindle, there is also a nut thread with a handle (1) is provided for axial displacement of the spindle.
DES130899D 1938-02-20 1938-02-20 Nail puller for bone nails with internal thread in the nail head Expired DE735333C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES130899D DE735333C (en) 1938-02-20 1938-02-20 Nail puller for bone nails with internal thread in the nail head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES130899D DE735333C (en) 1938-02-20 1938-02-20 Nail puller for bone nails with internal thread in the nail head

Publications (1)

Publication Number Publication Date
DE735333C true DE735333C (en) 1943-05-12

Family

ID=7538583

Family Applications (1)

Application Number Title Priority Date Filing Date
DES130899D Expired DE735333C (en) 1938-02-20 1938-02-20 Nail puller for bone nails with internal thread in the nail head

Country Status (1)

Country Link
DE (1) DE735333C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055172A (en) * 1973-07-18 1977-10-25 Josef Ender Nail and set for correctly resetting fractured bones for their immediate re-use
US4169470A (en) * 1977-10-19 1979-10-02 Ender Hans G Surgical nail for use in setting bone fractures, and tool for emplacing same
US4399813A (en) * 1981-01-22 1983-08-23 Barber Forest C Apparatus and method for removing a prosthesis embedded in skeletal bone
US4531517A (en) * 1983-03-24 1985-07-30 Forte Thomas E Extractor for intramedullary fasteners
US4580563A (en) * 1983-10-24 1986-04-08 Gross R Michael Arthroscopic surgical instrument and method
US4927425A (en) * 1988-12-21 1990-05-22 Zimmer, Inc. Surgical rod pusher instrument
WO1997000648A1 (en) * 1995-06-20 1997-01-09 Orthofix S.R.L. Device for the extraction of screw-threaded wires particularly for orthopaedic surgical operations
US8414616B2 (en) 2006-09-12 2013-04-09 Pioneer Surgical Technology, Inc. Mounting devices for fixation devices and insertion instruments used therewith
CN103961176A (en) * 2014-05-26 2014-08-06 陈军 General intramedullary nail extractor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055172A (en) * 1973-07-18 1977-10-25 Josef Ender Nail and set for correctly resetting fractured bones for their immediate re-use
US4169470A (en) * 1977-10-19 1979-10-02 Ender Hans G Surgical nail for use in setting bone fractures, and tool for emplacing same
US4399813A (en) * 1981-01-22 1983-08-23 Barber Forest C Apparatus and method for removing a prosthesis embedded in skeletal bone
US4612922A (en) * 1981-01-22 1986-09-23 Barber Forest C Drilling apparatus and method
US4531517A (en) * 1983-03-24 1985-07-30 Forte Thomas E Extractor for intramedullary fasteners
US4580563A (en) * 1983-10-24 1986-04-08 Gross R Michael Arthroscopic surgical instrument and method
US4927425A (en) * 1988-12-21 1990-05-22 Zimmer, Inc. Surgical rod pusher instrument
WO1997000648A1 (en) * 1995-06-20 1997-01-09 Orthofix S.R.L. Device for the extraction of screw-threaded wires particularly for orthopaedic surgical operations
US8414616B2 (en) 2006-09-12 2013-04-09 Pioneer Surgical Technology, Inc. Mounting devices for fixation devices and insertion instruments used therewith
CN103961176A (en) * 2014-05-26 2014-08-06 陈军 General intramedullary nail extractor

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