DE4439309A1 - Hip joint prosthesis gripper - Google Patents

Hip joint prosthesis gripper

Info

Publication number
DE4439309A1
DE4439309A1 DE4439309A DE4439309A DE4439309A1 DE 4439309 A1 DE4439309 A1 DE 4439309A1 DE 4439309 A DE4439309 A DE 4439309A DE 4439309 A DE4439309 A DE 4439309A DE 4439309 A1 DE4439309 A1 DE 4439309A1
Authority
DE
Germany
Prior art keywords
prosthesis
sleeve
clamping device
clamping
clamp according
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.)
Withdrawn
Application number
DE4439309A
Other languages
German (de)
Inventor
Hans-Wilhelm Beisner
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.)
BEISNER HANS WILHELM
Original Assignee
BEISNER HANS WILHELM
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 BEISNER HANS WILHELM filed Critical BEISNER HANS WILHELM
Priority to DE4439309A priority Critical patent/DE4439309A1/en
Publication of DE4439309A1 publication Critical patent/DE4439309A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4607—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of hip femoral endoprostheses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3625—Necks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
    • A61F2002/4628—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4688—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor having operating or control means
    • A61F2002/4692—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor having operating or control means fluid
    • A61F2002/4694—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor having operating or control means fluid pneumatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Abstract

The gripper handles a hip joint prosthesis (1,1a,b) during surgery and comprises a clamp (10), longitudinally slidable in a rigid clamping sleeve (20) and positively compressible into the cone (1a) and its shoulder. A compression or pull device (11-13) provides a relative motion of the clamp (10,10a,b) in the sleeve for displacement of the clamp inner gripping face. Pref. the clamp inside matches the outer surface shape of the prosthesis cone. The sleeve may be fitted with a swivelable guide rod (30,31) with a slidable weight.

Description

Das technische Gebiet der Erfindung sind die Hilfsmittel für den Chirurgen, insbesondere die Hilfsmittel zum Einbau und Ausbau von Prothesen, wie Hüftgelenk-Prothesen.The technical field of the invention are the tools for the Surgeons, especially the aids for installation and removal prostheses, such as hip joint prostheses.

Solchen Prothesen werden zunehmend häufiger eingesetzt und haben bei dem derzeitigen Stand der Fertigungstechnik eine nur kurze Lebensdauer von einigen Jahren (ca. 15 Jahre). Danach muß die abgenutzte Prothese ausgebaut (aus dem Knochen entfernt) werden und an ihrer Stelle eine neue, unverbrauchte in den Knochen eingefügt werden. Hierzu muß der operierende Arzt die meist mit "Zement" in dem Knochen fest eingefügte alte Prothese herausziehen, was sich ohne den abgenommenen Gelenkkopf (die Prothese besteht aus Schaft (und Kopf) nur schwer erreichen läßt. Die Erfindung möchte hier ansetzen und schlägt eine Prothesen-Klammer vor, die besser, fester und sicherer am oberen Ende der Prothese (dem Konusende des Schaftes) angreifen kann (Anspruch 1, Anspruch 9).Such prostheses are increasingly used and have at the current state of manufacturing technology only a short one Lifespan of a few years (approx. 15 years). Then the worn prosthesis removed (removed from the bone) and in their place a new, unused one in the bones be inserted. For this, the operating doctor usually has to "Cement" old prosthesis firmly inserted into the bone pull out what is without the removed joint head (the The prosthesis consists of a stem (and head) that are difficult to reach leaves. The invention would like to start here and proposes one Prosthesis brace in front, the better, firmer and safer at the top End of the prosthesis (the conical end of the shaft) (Claim 1, Claim 9).

Die Spannhülse führt dabei axial eine Klemmeinrichtung, die - mit oder ohne inneren Absatz - das Konusende der Prothese (dort, wo die Kugel aufgesetzt wird) ergreift, und zwar sowohl form- als auch kraftschlüssig.The adapter sleeve axially guides a clamping device - with or without inner shoulder - the conical end of the prosthesis (where the ball is placed), both positive and non-positive.

Eine Druck- oder Zugeinrichtung spannt und löst die Klemmeinrichtung. Sie kann von einem Pneumatikzylinder unterstützt sein (Anspruch 4, Anspruch 8).A push or pull device tensions and releases the Clamping device. It can be from a pneumatic cylinder be supported (claim 4, claim 8).

Die Außengestalt der Klemmeinrichtung kann Kegelstumpfform haben, ebenso wie die Innengestalt des vorderen Spannhülsenabschnitts (Anspruch 5).The external shape of the clamping device can have the shape of a truncated cone like the interior of the front Adapter sleeve section (claim 5).

Aufgrund der Außengestalt von Konus und Innengestalt der Klemmeinrichtung (Anspruch 2, Anspruch 6, Anspruch 11), ergreift letztere die Prothese am kleinen Absatz hinter dem Konusende (formschlüssig). Due to the outer shape of the cone and the inner shape of the Clamping device (claim 2, claim 6, claim 11) the latter is the prosthesis on the small heel behind the end of the cone (positive).  

Als vorteilhafte Wirkung der Lehre des Anspruchs 7 oder Anspruchs 10 ergibt sie eine Ausrichtung der Ausbaukräfte in axialer Richtung der Prothese. Verkantungen werden vermieden. Die Einstellbarkeit der Richtung durch das Schwenklager erleichtert auch die Anpassung an unterschiedliche Winkel von Konusachse zu Schaftachse der Prothese (Anspruch 3)
Die Zeichnungen verdeutlichen drei Beispiele der Erfindung.As an advantageous effect of the teaching of claim 7 or claim 10, it results in an alignment of the expansion forces in the axial direction of the prosthesis. Canting is avoided. The adjustability of the direction by the pivot bearing also facilitates the adaptation to different angles from the taper axis to the shaft axis of the prosthesis (claim 3)
The drawings illustrate three examples of the invention.

Fig. 1 ist ein mit Pneumatik arbeitendes Klemmprinzip, bei dem Klemmeinsatz 10 und Hülse 20 symmetrisch konisch ausgebildet sind. Dem Ringvorsprung 1c der Prothese 1 (vgl. Fig. 4) steht eine entsprechende Ringvertiefung 10 im Klemmeinsatz gegenüber. Fig. 1 is a pneumatic principle of clamping, in which the clamping insert 10 and sleeve 20 are formed symmetrically conical. The ring projection 1 c of the prosthesis 1 (see FIG. 4) is opposed by a corresponding ring recess 10 in the clamping insert.

Fig. 2 ist gestaltet mit vorderendiger Druckmutter 21, die auf einem Außengewinde 21 der Hülse 20 geführt ist. Sie drückt anliegend auf die Stirnseite des Klemmeinsatzes 10, um diesen in der Hülse zu verschieben, radial zu spannen und zu entspannen. Die Druckmutter erlaubt eine kurze Bauweise. Fig. 2 is designed with a front end pressure nut 21 which is guided on an external thread 21 of the sleeve 20 . It presses against the end face of the clamping insert 10 in order to move it in the sleeve, to tension it radially and to relax it. The pressure nut allows a short construction.

Fig. 3 ist eine Aufsicht, bei der die Schlageinrichtung deutlich wird. Sie besteht aus schwenkbarer Stange 30 und Schlaggewicht 33, das gegen ein stangenfestes Ende 32 geführt werden kann. Fig. 3 is a plan view showing the striking device. It consists of a pivotable rod 30 and impact weight 33 , which can be guided against a rod end 32 .

Im übrigen sind die Figuren in Verbindung mit den Bezugszeichen der Ansprüche selbsterklärend. Die Klemmeinrichtung kann im vorderen Abschnitt geschlitzt sein oder aus Segmenten bestehen.For the rest, the figures are in connection with the reference numerals of claims self-explanatory. The clamping device can front section be slotted or consist of segments.

Claims (11)

1. Hüftprothesen-Klammer zum "Ausbau" von Hüftgelenk-Prothesen (1a, 1b; 1) in oder aus dem Oberschenkelhals; bei der
  • (a) eine formschlüssig und kraftschlüssig an den Konus (1a) und dessen Absatz (1b, 1c) andrückbare Klemmeinrichtung (10) in einer formsteifen Spannhülse (20) längsverschieblich geführt ist;
  • (b) eine Druck- oder Zugeinrichtung vorgesehen ist (12, 11, 13; 22, 10b; 21, 21a) zur Relativbewegung der Klemmeinrichtung (10; 10a, 10b) in der Spannhülse (20), um die innere Greiffläche der Klemmeinrichtung (10) radial zu verstellen.
1. Hip prosthesis clip for "expanding" hip joint prostheses ( 1 a, 1 b; 1 ) in or out of the femoral neck; in the
  • (a) a clamping device ( 10 ) which can be pressed against the cone ( 1 a) and its shoulder ( 1 b, 1 c) in a form-fitting and non-positive manner in a dimensionally stable clamping sleeve ( 20 );
  • (b) a push or pull device is provided ( 12 , 11 , 13 ; 22 , 10 b; 21 , 21 a) for the relative movement of the clamping device ( 10 ; 10 a, 10 b) in the clamping sleeve ( 20 ) to the inner To adjust the gripping surface of the clamping device ( 10 ) radially.
2. Prothesen-Klammer nach Anspruch 1, bei der die Innenseite der Klemmeinrichtung (10) an die Außen-Oberflächenform des Prothesen-Konus (1a, 1c) angepaßt ist.2. prosthesis clamp according to claim 1, wherein the inside of the clamping device ( 10 ) to the outer surface shape of the prosthesis cone ( 1 a, 1 c) is adapted. 3. Prothesen-Klammer nach Anspruch 2 oder 1, bei der an der Spannhülse (20) eine insbesondere schwenkbare Führungsstange (30, 31) angeordnet ist, auf der ein Gewicht (33) verschieblich geführt wird.3. prosthesis clamp according to claim 2 or 1, in which a particularly pivotable guide rod ( 30 , 31 ) is arranged on the clamping sleeve ( 20 ) on which a weight ( 33 ) is slidably guided. 4. Klammer nach einem der vorhergehenden Ansprüche, bei der die Druck- oder Zugeinrichtung (12; 22, 21) aufweist:
  • (a) einen pneumatisch betreibbaren Zugkolben in einem Zylinderabschnitt, welcher Kolben (11a, 11) über eine Stange (12) die Klemmeinrichtung (10) axial verschiebt; oder
  • (b) eine Spannmutter (22), die am rückwärtigen Endbereich der Hülse (20) anliegt und über ein Gewinde am rückwärtigen Bereich der Klemmeinrichtung (10) angreift; oder
  • (c) eine Schubmutter (21), die am vorderendigen Abschnitt auf einem Gewinde (21a) der Hülse (20) drehbar ist und auf das Vorderende der Klemmeinrichtung (10) drückt.
4. Clamp according to one of the preceding claims, in which the pushing or pulling device ( 12 ; 22 , 21 ) comprises:
  • (a) (11 a, 11) moves a pneumatically operated pulling piston in a cylinder portion, said piston via a rod (12) the clamping means (10) axially; or
  • (b) a clamping nut ( 22 ) which bears against the rear end region of the sleeve ( 20 ) and engages via a thread on the rear region of the clamping device ( 10 ); or
  • (c) a thrust nut ( 21 ) which is rotatable at the front end section on a thread ( 21 a) of the sleeve ( 20 ) and presses on the front end of the clamping device ( 10 ).
5. Klammer nach einem der vorhergehenden Ansprüche, bei der der vordere Abschnitt der Spannhülse (20) konisch ist und/oder der vordere Abschnitt (10a) der Klemmeinrichtung konisch ausgebildet ist.5. Clamp according to one of the preceding claims, in which the front section of the clamping sleeve ( 20 ) is conical and / or the front section ( 10 a) of the clamping device is conical. 6. Klammer nach einem der vorhergehenden Ansprüche, bei der die Innen-Greiffläche der Klemmeinrichtung (10) einen Absatz (10c) aufweist, der passend zum Absatz (1c) des Konus (1a) der Prothese gestaltet ist.6. Clamp according to one of the preceding claims, wherein the inner gripping surface of the clamping device ( 10 ) has a shoulder ( 10 c) which is designed to match the shoulder ( 1 c) of the cone ( 1 a) of the prosthesis. 7. Klammer nach einem der vorhergehenden Ansprüche, bei der die Führungsstange (30) an einem Ende über einen lösbaren Stift (24) an der Hülse schwenkbar angeordnet ist und am anderen Ende einen Schlagteller (32) aufweist, an den das Schlaggewicht (33) anschlagbar ist, um Zugkräfte auf die Prothese auszuüben.7. Clamp according to one of the preceding claims, wherein the guide rod ( 30 ) is pivotally arranged at one end via a releasable pin ( 24 ) on the sleeve and at the other end has a striking plate ( 32 ) to which the striking weight ( 33 ) can be struck in order to exert tensile forces on the prosthesis. 8. Klammer nach Anspruch 4, bei der der Pneumatik- Zylinder (11, 11a) eine Druckkammer aufweist, die über Luftdruck (L) und einen Einlaß (11b) zumindest soweit mit Druck füllbar ist, daß eine Spanneinrichtung (13), wie Mutter, zum Axialverschieben und Spannen der Klemmeinrichtung verstellbar ist, unter Aufwendung nur geringer Kraft.8. Clamp according to claim 4, in which the pneumatic cylinder ( 11 , 11 a) has a pressure chamber which can be filled with pressure via air pressure (L) and an inlet ( 11 b) at least to the extent that a tensioning device ( 13 ), like nut, is adjustable for axial displacement and tensioning of the clamping device, using only little force. 9. Verwendung einer Spannzange nach einem der vorhergehenden Ansprüche als Prothesen-Klammer bei chirurgischen Eingriffen.9. Use a collet according to one of the preceding Claims as a prosthesis clamp in surgical Interventions. 10. Verwendung nach Anspruch 9, bei der an der Spannzangenhülse (20) eine Führungsstange (31) für ein Schlaggewicht (33) angeordnet ist.10. Use according to claim 9, in which a guide rod ( 31 ) for an impact weight ( 33 ) is arranged on the collet sleeve ( 20 ). 11. Verwendung nach Anspruch 10 oder 9, bei der der Einsatz der Spannzange konisch ausgebildet ist, insbesondere einen umlaufenden Absatz (10c) aufweist.11. Use according to claim 10 or 9, in which the use of the collet is conical, in particular has a circumferential shoulder ( 10 c).
DE4439309A 1994-09-16 1994-11-03 Hip joint prosthesis gripper Withdrawn DE4439309A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4439309A DE4439309A1 (en) 1994-09-16 1994-11-03 Hip joint prosthesis gripper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433112 1994-09-16
DE4439309A DE4439309A1 (en) 1994-09-16 1994-11-03 Hip joint prosthesis gripper

Publications (1)

Publication Number Publication Date
DE4439309A1 true DE4439309A1 (en) 1996-03-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE4439309A Withdrawn DE4439309A1 (en) 1994-09-16 1994-11-03 Hip joint prosthesis gripper

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DE (1) DE4439309A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821048C1 (en) * 1998-05-11 2000-03-23 Aesculap Ag & Co Kg Insertion instrument for bone endoprosthesis has expansion head to connect insert to instrument
WO2018134423A1 (en) * 2017-01-23 2018-07-26 Aesculap Ag Hip joint endoprosthesis system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818514A (en) * 1971-08-09 1974-06-25 Thackray C F Ltd Femoral prosthesis with removable protective sheath
DE7601139U1 (en) * 1976-05-26 Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen Surgical instrument for inserting and withdrawing a joint endoprosthesis
US4686971A (en) * 1984-11-19 1987-08-18 Harris William H Method and apparatus for extraction of prostheses
DE3935518A1 (en) * 1989-10-25 1991-05-02 Man Technologie Gmbh DEVICE FOR HOLDING PROSTHESES FOR IMPLANTING AND EXPLANTING THE PROSTHESIS
DE9212846U1 (en) * 1992-09-24 1992-11-19 S + G Implants Gmbh, 2400 Luebeck, De
DE4220970A1 (en) * 1991-12-30 1993-07-01 Artos Med Produkte ROTATION INSTRUMENT
DE4310834C1 (en) * 1993-04-02 1994-10-13 Wolfgang Zach Extraction device for removing and driving in shaft endoprostheses with a smooth conical or cylindrical proximal end

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7601139U1 (en) * 1976-05-26 Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen Surgical instrument for inserting and withdrawing a joint endoprosthesis
US3818514A (en) * 1971-08-09 1974-06-25 Thackray C F Ltd Femoral prosthesis with removable protective sheath
US4686971A (en) * 1984-11-19 1987-08-18 Harris William H Method and apparatus for extraction of prostheses
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WO1991006262A1 (en) * 1989-10-25 1991-05-16 Man Technologie Aktiengesellschaft Device for holding a prosthesis during implantation and explantation of the prosthesis
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DE4220970A1 (en) * 1991-12-30 1993-07-01 Artos Med Produkte ROTATION INSTRUMENT
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821048C1 (en) * 1998-05-11 2000-03-23 Aesculap Ag & Co Kg Insertion instrument for bone endoprosthesis has expansion head to connect insert to instrument
WO2018134423A1 (en) * 2017-01-23 2018-07-26 Aesculap Ag Hip joint endoprosthesis system
DE102017101191A1 (en) 2017-01-23 2018-07-26 Aesculap Ag Hüftgelenkendoprothesensystem
JP2020505140A (en) * 2017-01-23 2020-02-20 アエスキュラップ アーゲー Hip endoprosthesis system
US11413160B2 (en) 2017-01-23 2022-08-16 Aesculap Ag Hip joint endoprosthesis system

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