FR2742334A1 - Surgical holding implement for hip implant rails - Google Patents
Surgical holding implement for hip implant rails Download PDFInfo
- Publication number
- FR2742334A1 FR2742334A1 FR9515212A FR9515212A FR2742334A1 FR 2742334 A1 FR2742334 A1 FR 2742334A1 FR 9515212 A FR9515212 A FR 9515212A FR 9515212 A FR9515212 A FR 9515212A FR 2742334 A1 FR2742334 A1 FR 2742334A1
- Authority
- FR
- France
- Prior art keywords
- piston
- sliding
- rod
- pinch
- axis
- 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.)
- Granted
Links
- 239000007943 implant Substances 0.000 title description 11
- 230000000694 effects Effects 0.000 claims description 7
- 238000000605 extraction Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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 for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4607—Special tools for implanting artificial joints 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
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30614—Sets comprising both primary and revision 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
- 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 for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4619—Special tools for implanting artificial joints 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 for implanting artificial joints
- A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4627—Special tools for implanting artificial joints 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 the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
Landscapes
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physical Education & Sports Medicine (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
La présente invention a pour objet un dispositif développeur d'effort d'un prehenseur universel de tige fémorale du type muni d'un piston à ressort, d'un système de démultiplication d'effort à effet de coin et d'un locquet de pincement. Elle s'applique en particulier aux interventions chirurgicales sur la hanche avec prothéses fémorales.The subject of the present invention is a force developer device of a universal femoral stem gripper of the type provided with a spring piston, a force reduction system with corner effect and a pinch locquet. . It applies in particular to surgical operations on the hip with femoral prostheses.
Dans les interventions chirurgicales sur la hanche destinées à reparer l'articulation défectueuse, on procéde généralement à la pose d'un implant fémoral de première intention ou de reprise. Dans chaque cas, le chirurgien utilise des instruments de chirurgie adaptés spécifiquement à l'implant considéré.In surgical operations on the hip intended to repair the defective joint, one generally proceeds to the placement of a femoral implant of first intention or resumption. In each case, the surgeon uses surgical instruments specifically adapted to the implant considered.
Dans le cas d'une arthroplastie de première intention, certaines techniques de pose de l'implant requiérent un guidage parfait de l'implant jusqu'à sa position définitive. Ce parfait guidage se fait à l'aide d'un porte-implant adapté à chaque type de tige fémorale, quand il en existe un dans la boite d'instrumentation. Dans le cas contraire le guidage se fait par impaction au marteau et au pointeau, en essayant d'orienter la descente dans la direction souhaitée, pour obtenir l'appui et l'antéversion souhaitée.In the case of first-line arthroplasty, certain implant placement techniques require perfect guidance of the implant to its final position. This perfect guidance is done using an implant holder adapted to each type of femoral stem, when there is one in the instrumentation box. Otherwise, the guidance is done by hammer and needle punch, trying to orient the descent in the desired direction, to obtain the desired support and anteversion.
Dans le cas d'une reprise de prothése, on procéde d'abord à l'ablation de la tige fémorale de première intention avant de poser la tige de reprise. Si la tige fémorale à retirer est encore scellée, son extraction se fait à l'aide de divers types de prehenseurs auxquels on accouple soit une masselotte de frappe soit un extracteur motorisé générant des chocs d'extraction.Plusieurs types de prehenseurs existent, permettant soit de se visser sur la tige si tel est le moyen d'arrimage, soit de passer sous la tête fémorale dans le cas de tiges avec tête monobloc, soit d'arrimer celle-ci par effet d'arc-boutement sur son col dont le diamétre peut varier entre 10 et 15 mm.In the case of a prosthesis revision, the first intention is to remove the femoral stem before placing the recovery stem. If the femoral stem to be removed is still sealed, its extraction is done using various types of grippers to which are coupled either a striking weight or a motorized extractor generating extraction shocks. Several types of grippers exist, allowing either to be screwed onto the rod if this is the means of securing, either to pass under the femoral head in the case of rods with a monobloc head, or to secure it by bracing effect on its neck whose diameter can vary between 10 and 15 mm.
Les difficultés de l'ablation de tige fémorale sont liées à la difficulté de préparation de l'accés du système prehenseur, à la recherche d'un arrimage fiable de l'implant et surtout au risque de ne pas posséder le prehenseur adéquat une fois l'incision réalisée et la vraie nature de l'implant dévoilée.The difficulties of removing the femoral stem are linked to the difficulty of preparing access to the gripper system, looking for a reliable stowage of the implant and above all the risk of not having the proper gripper once the incision made and the true nature of the implant revealed.
L'apprehension devant ces difficultés conduit parfois les chirurgiens à éviter ou retarder l'opéra- tion de reprise.The apprehension of these difficulties sometimes leads surgeons to avoid or delay the recovery operation.
Pour limiter les risques et les difficultés cités ci-dessus, le chirurgien doit être en possession d'un prehenseur adéquat : I'encombrement aux abords du col de la tige à extraire ou à impacter doit être réduit au strict minimum, la manoeuvre d'arrimage doit se faire sans manipulation laborieuse au fond de l'incision, la résistance mécanique de la liaison entre le prehenseur et l'implant doit résister aux sollicitations mécaniques de l'extraction. Enfin, I'adéquation du système de prehension avec le col de l'implant doit être assurée quelle que soit la géométrie de celui-ci.To limit the risks and the difficulties mentioned above, the surgeon must be in possession of an adequate gripper: the space around the neck of the stem to be extracted or impacted must be reduced to the strict minimum, the maneuver to Securing must be done without laborious manipulation at the bottom of the incision, the mechanical resistance of the connection between the gripper and the implant must resist the mechanical stresses of the extraction. Finally, the adequacy of the gripping system with the neck of the implant must be ensured regardless of the geometry thereof.
Dans le cas de l'impaction d'une tige neuve, le chirurgien a besoin d'un prehenseur assurant un arrimage total, sans jeu et rigide pour maitriser la direction et l'orientation de l'implant posé. Le désarrimage du système prehenseur doit pouvoir se faire par une manipulation simple et maitrisée, ne risquant pas de remobiliser la position finale obtenue à la phase d'impaction.In the case of the impaction of a new rod, the surgeon needs a gripper ensuring total stowage, without play and rigid to control the direction and orientation of the implant placed. The unhooking of the gripper system must be able to be done by a simple and controlled manipulation, not risking re-mobilizing the final position obtained in the impaction phase.
L'invention, objet de ce brevet, est caractérisée par un dispositif développeur d'effort d'un prehenseur universel de tige fémorale, destiné aussi bien à l'impaction qu'à l'ablation de tiges scellées ou non. Sa conception a pour but de remédier aux inconvénients cités ci-dessus. The invention which is the subject of this patent is characterized by a force developer device of a universal femoral stem gripper, intended both for impaction and for ablation of sealed or unsealed stems. Its design aims to remedy the drawbacks mentioned above.
A cet effet, I'invention a pour but de fournir un dispositif caractérisé en ce qu'il comporte:
* Dans sa partie centrale, un piston à ressort dont la tige centrale est manoeuvrable par un système du type seringue, dans le but de faire coulisser la tige centrale dans le sens d'une retraction à l'intérieur même du piston. Aprés relâchement de l'effort manuel sur le systéme de manoeuvre, le ressort developpe à son tour un effort de compression sur la tige centrale dans le sens de sa sortie vers l'extremité inférieure.To this end, the invention aims to provide a device characterized in that it comprises:
* In its central part, a spring-loaded piston, the central rod of which can be operated by a syringe-type system, with the aim of sliding the central rod in the direction of a retraction inside the piston itself. After releasing the manual force on the operating system, the spring in turn develops a compression force on the central rod in the direction of its exit towards the lower end.
* Sur la partie supérieure, ledit système du type seringue avec paumeau d'appui de la paume de la main et enfilé sur le piston et avec une barre transversale à tracter avec les doigts, I'ensemble permettant de manoeuvrer axialement la tige centrale. Aprés escamotage du paumeau, le piston présente un moyen mécanique d'arrimage d'un système d'extraction comme par exemple un filetage d'accrochage d'une masselotte de frappe coulissante ou tout autre moyen mécanique manuel ou motorisé. * On the upper part, said system of the syringe type with palm of support of the palm of the hand and threaded on the piston and with a transverse bar to be drawn with the fingers, the assembly making it possible to maneuver axially the central rod. After retraction of the hinge, the piston has a mechanical means for securing an extraction system such as, for example, a thread for attaching a sliding striking weight or any other manual or motorized mechanical means.
* A son extrèmité inférieure, un système de machoires de prehension du col des tiges fémorales du type muni d'un embout en forme d'anneau fendu latéralement et constituant la partie fixe de la machoire et dans lequel coulisse un locquet de pincement. L'extrémité libre de celui-ci constitue la partie mobile de la macho ire et présente une forme et des dimensions adaptées pour coopérer avec les tiges fémorales à prendre. L'extrèmité du locquet inteme à l'alésage de l'embout présente une surface inclinée coopérant avec l'extrèmité inférieure de la tige du piston elle-même présentant un pan incliné d'un angle a au moins inférieur à 10 . Cette derniére disposition concoure à la démultiplication de l'effort développé par le ressort et à la transmission de l'effort résultant au locquet de pincement. * At its lower end, a system of jaws for gripping the neck of femoral stems of the type provided with a ring-shaped end split laterally and constituting the fixed part of the jaw and in which slides a pinch locquet. The free end thereof constitutes the movable part of the macho ire and has a shape and dimensions adapted to cooperate with the femoral stems to be taken. The end of the internal locquet at the bore of the endpiece has an inclined surface cooperating with the lower end of the piston rod itself having an inclined face with an angle a at least less than 10. This latter arrangement contributes to the reduction of the force developed by the spring and to the transmission of the force resulting to the pinching locquet.
* Une disposition générale telle que l'axe de l'embout est incliné par rapport à l'axe du piston d'un angle approximativement égal à 135". * A general arrangement such that the axis of the nozzle is inclined relative to the axis of the piston by an angle approximately equal to 135 ".
Dans le mouvement de poussée vers la sortie du ressort sur la tige, I'extrèmité de celle-ci, inclinée de moins de 10 par rapport à son axe, exerce un effort surmultiplié sur le locquet par effet de coin. L' effet de machoire est ainsi obtenu par le locquet qui pince le col de la tige fémorale contre le fond de l'anneau formé par l'embout du prehenseur.In the pushing movement towards the exit of the spring on the rod, the end of the latter, inclined by less than 10 relative to its axis, exerts an overdrive on the locquet by wedge effect. The jaw effect is thus obtained by the locquet which clamps the neck of the femoral stem against the bottom of the ring formed by the tip of the gripper.
Un exemple de réalisation va maintenant être décrit en regard des dessins annexés sur lesquels:
La figure 1 est une vue en coupe d'un dispositif developpeur d'effort d'un prehenseur universel (1) de tige fémorale à l'état de repos. Celui-ci est composé de trois parties principales : Le corps cylindrique (11) constitué entre autres d'un piston (7) à ressort (6) , d'un embout (4) fendu latéralement et, à la jonction des deux, un système ( 12) de renvoi et de démultiplication des efforts délivrés par ledit ressort. An exemplary embodiment will now be described with reference to the appended drawings in which:
Figure 1 is a sectional view of a force developing device of a universal gripper (1) of the femoral stem in the rest state. It is made up of three main parts: The cylindrical body (11) made up inter alia of a piston (7) with spring (6), an end piece (4) split laterally and, at the junction of the two, a system (12) for returning and reducing the forces delivered by said spring.
Le corps cylindrique (11) est constitué par un piston (7) à ressort (6) dont la tige centrale (3) est retractable par appui de la main sur le pommeau (8) placé à l'extrémité supérieure du piston et par traction des doigts sur la barre transversale coulissante (2) le long du piston (7). Un moyen mécanique d'arrimage (10) d'un système d'extraction, comme par exemple un filetage d'accrochage (10) d'une masselotte de frappe coulissante (19) ou tout autre moyen, se trouve sur l'extrémité supérieure du prehenseur (1) lorsqu'on a ôté le paumeau escamotable (8). Une fente (20) ménagée transversalement dans le piston (6) permet le passage transversal d'un axe (21) pour relier la barre d'appui transversal (2) à la tige (3) dans le mouvement de coulissement de celle-ci. The cylindrical body (11) is constituted by a piston (7) with spring (6) whose central rod (3) is retractable by pressing the hand on the knob (8) placed at the upper end of the piston and by traction fingers on the sliding crossbar (2) along the piston (7). A mechanical means for securing (10) an extraction system, such as for example a hooking thread (10) of a sliding striking weight (19) or any other means, is located on the upper end. of the gripper (1) when the retractable hinge (8) has been removed. A slot (20) formed transversely in the piston (6) allows the transverse passage of an axis (21) to connect the transverse support bar (2) to the rod (3) in the sliding movement of the latter. .
* L'embout coudé (4) se présente sous forme d'un corps tubulaire d'un coté du coude, se terminant par un anneau (18) fendu latéralement sur l'autre coté du coude. Le corps tubulaire comporte dans son axe un locquet de pincement (5) coulissant au sein de celui-ci. L'extrémité libre (14) du locquet (5) présente une forme et des dimensions adaptées pour coopérer avec celles des tiges fémorales (15) à pincer et l'autre extrémité présente un pan incliné (16) destiné à coopérer avec l'extrémité inférieure de la tige (3) du piston dans le mouvement de sortie de la tige (3), elle-même présentant un pan incliné (13) à son extrémité inférieure (12). * The bent end piece (4) is in the form of a tubular body on one side of the elbow, ending in a ring (18) split laterally on the other side of the elbow. The tubular body has in its axis a pinch locator (5) sliding within it. The free end (14) of the locquet (5) has a shape and dimensions adapted to cooperate with those of the femoral stems (15) to be pinched and the other end has an inclined face (16) intended to cooperate with the end lower of the piston rod (3) in the exit movement of the rod (3), itself having an inclined face (13) at its lower end (12).
* un système de démultiplication et de verrouillage de l'effort axial déployé par le ressort (6), lorsqu'il est relaché, est constitué par une surface inclinée (13) d'angle sensiblement inférieur à 10" par rapport à l'axe de la tige (3) et ménagée à l'extrémité inférieure (12) de celle-ci et agissant sur la surface (16) du locquet de pincement (5) pour créer l'effet de coin et par conséquent le renvoi de l'effort axial developpé par ledit ressort sur le locquet et de façon multipliée . Le locquet pincera le col de la tige fémorale entre son extrémité libre (14) et la paroi intérieure (17) de l'anneau (18). * a reduction and locking system of the axial force deployed by the spring (6), when it is released, consists of an inclined surface (13) of angle substantially less than 10 "relative to the axis of the rod (3) and formed at the lower end (12) thereof and acting on the surface (16) of the pinch lock (5) to create the wedge effect and therefore the return of the axial force developed by said spring on the locquet and in a multiplied manner The locquet will pinch the neck of the femoral stem between its free end (14) and the interior wall (17) of the ring (18).
La figure 2 est une vue représentant le dispositif développeur d'effort d'un prehenseur universel (1) de tige fémorale en position de travail et de pincement d'une tige fémorale (15) et avec arrimage d'une variante de système d'extraction (19).FIG. 2 is a view showing the force developing device of a universal gripper (1) of a femoral stem in the working position and of pinching of a femoral stem (15) and with stowage of a variant of the system extraction (19).
En position de travail, l'extrémité inférieure (12) de la tige (3) s'enfonce dans l'espace résiduel ménagé entre la surface (16) du locquet (5) et la surface d'appui interne (22) du piston (7), sous l'effort axial deployé vers le bas par le ressort (6). Le verrouillage en position de pincement du locquet sans risque de relachement sous les chocs d'extraction est rendu possible par le caractére irréversible du système de démultiplication à effet de coin, avec d'une part un angle inférieur à 10 de la surface d'appui (13) de l'extrémité (12) de la tige (3) par rapport à la direction de translation de celle-ci et d'autre part une surface d'appui (28) à génératrices parrallèles à l'axe de coulissement et opposée à ladite surface inclinée.In the working position, the lower end (12) of the rod (3) sinks into the residual space formed between the surface (16) of the locquet (5) and the internal bearing surface (22) of the piston (7), under the axial force deployed downwards by the spring (6). The locking in the pinch position of the locquet without risk of loosening under the shocks of extraction is made possible by the irreversible character of the gear reduction system with corner effect, with on the one hand an angle less than 10 of the bearing surface (13) of the end (12) of the rod (3) relative to the direction of translation of the latter and on the other hand a bearing surface (28) with generatrixes parallel to the sliding axis and opposite to said inclined surface.
La figure 3 est une vue en coupe partielle du dispositif en position de retraction compléte de la tige (3) pour interchanger le locquet de pincement (5). La retraction dans la position adéquate de la tige (3) se fait par traction manuelle sur la barre transversale (2) jusqu'à la hauteur maximale. Dans cette position l'embout (4) présente un alésage (23) dans son axe qui laisse sortir le locquet (5) pour son remplacement.Figure 3 is a partial sectional view of the device in the fully retracted position of the rod (3) for interchanging the pinch locquet (5). The retraction in the appropriate position of the rod (3) is done by manual traction on the crossbar (2) to the maximum height. In this position the end piece (4) has a bore (23) in its axis which lets out the locquet (5) for its replacement.
Divers types de locquets peuvent être montés dans le dispositif:
* Locquet (24) dont la surface d'appui sur la tige est biseautée avec contact à la partie
supérieure (25).Various types of locquet can be fitted in the device:
* Locquet (24) whose bearing surface on the rod is bevelled with contact to the part
upper (25).
* Locquet (26)dont la surface d'appui sur la tige est biseautée avec contact à la partie
inférieure(27) ou tout autre type de surface de contact. * Locquet (26) whose bearing surface on the rod is bevelled with contact to the part
lower (27) or any other type of contact surface.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9515212A FR2742334B1 (en) | 1995-12-18 | 1995-12-18 | EFFORT DEVELOPER DEVICE OF A UNIVERSAL FEMALE ROD GRIPPER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9515212A FR2742334B1 (en) | 1995-12-18 | 1995-12-18 | EFFORT DEVELOPER DEVICE OF A UNIVERSAL FEMALE ROD GRIPPER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2742334A1 true FR2742334A1 (en) | 1997-06-20 |
| FR2742334B1 FR2742334B1 (en) | 1998-05-15 |
Family
ID=9485761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9515212A Expired - Fee Related FR2742334B1 (en) | 1995-12-18 | 1995-12-18 | EFFORT DEVELOPER DEVICE OF A UNIVERSAL FEMALE ROD GRIPPER |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2742334B1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940127A3 (en) * | 1998-03-02 | 2000-11-02 | Benoist Girard Et Cie | Prosthesis inserter |
| FR2794642A1 (en) * | 1999-06-08 | 2000-12-15 | Jacques Caton | Extractor for Charnley-type hip prosthesis comprises locking assembly and impaction member |
| WO2007068219A1 (en) * | 2005-12-15 | 2007-06-21 | Mueller Erich Johann | Surgical tool and method |
| EP2236107A1 (en) * | 2006-03-06 | 2010-10-06 | Howmedica Osteonics Corp. | Compound offset handle |
| FR2963733A1 (en) * | 2010-08-16 | 2012-02-17 | Advanced Technical Fabrication | Prosthetic femoral stem and removable prosthetic cervix assembly, has gripper including connection units for fixing connection units on proximal gripping end of temporary insert in which proximal end exceeds out of cavity to fix gripper |
| DE102013200924A1 (en) * | 2013-01-22 | 2014-07-24 | Erich Johann Müller | Razor tool for minimally invasive prosthesis revision |
| US9526512B2 (en) | 2003-11-18 | 2016-12-27 | Smith & Nephew, Inc. | Universal double offset surgical instrument |
| US9615837B2 (en) | 2003-11-18 | 2017-04-11 | Smith & Nephew, Inc. | Surgical technique and instrumentation for minimal incision hip arthroplasty surgery |
| WO2019169357A1 (en) * | 2018-03-01 | 2019-09-06 | Alden Kris | Prosthetic component extractor |
| EP3578139A1 (en) * | 2018-06-06 | 2019-12-11 | Müller, Erich Johann | Modular surgical instrument |
| EP3895666A1 (en) * | 2020-04-14 | 2021-10-20 | Shukla Medical | Implant extractor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581336A1 (en) * | 1985-05-02 | 1986-11-07 | Collomb Jean | Spanner for screwing a component whose head comprises a cut and a threaded bore |
| FR2615097A1 (en) * | 1987-05-12 | 1988-11-18 | Landos Applic Orthopediques Fs | Device for implanting/extracting a prosthesis, in particular a hip prosthesis |
| EP0408109A1 (en) * | 1989-07-10 | 1991-01-16 | Biotecnic Societe Anonyme | Device to assist the implantation, and allow the removel of, a hip prosthesis shaft |
| WO1991006262A1 (en) * | 1989-10-25 | 1991-05-16 | Man Technologie Aktiengesellschaft | Device for holding a prosthesis during implantation and explantation of the prosthesis |
| EP0520940A1 (en) * | 1991-06-26 | 1992-12-30 | SULZER Medizinaltechnik AG | Instrument for extracting prosthetic femoral stems |
| EP0550118A1 (en) * | 1991-12-30 | 1993-07-07 | ARTOS Medizinische Produkte GmbH | Endoprosthesis and appliance for driving it in or out |
| EP0645127A1 (en) * | 1993-09-27 | 1995-03-29 | Zsolt Szabo | Hip prostheses extractor with sliding mass |
-
1995
- 1995-12-18 FR FR9515212A patent/FR2742334B1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581336A1 (en) * | 1985-05-02 | 1986-11-07 | Collomb Jean | Spanner for screwing a component whose head comprises a cut and a threaded bore |
| FR2615097A1 (en) * | 1987-05-12 | 1988-11-18 | Landos Applic Orthopediques Fs | Device for implanting/extracting a prosthesis, in particular a hip prosthesis |
| EP0408109A1 (en) * | 1989-07-10 | 1991-01-16 | Biotecnic Societe Anonyme | Device to assist the implantation, and allow the removel of, a hip prosthesis shaft |
| WO1991006262A1 (en) * | 1989-10-25 | 1991-05-16 | Man Technologie Aktiengesellschaft | Device for holding a prosthesis during implantation and explantation of the prosthesis |
| EP0520940A1 (en) * | 1991-06-26 | 1992-12-30 | SULZER Medizinaltechnik AG | Instrument for extracting prosthetic femoral stems |
| EP0550118A1 (en) * | 1991-12-30 | 1993-07-07 | ARTOS Medizinische Produkte GmbH | Endoprosthesis and appliance for driving it in or out |
| EP0645127A1 (en) * | 1993-09-27 | 1995-03-29 | Zsolt Szabo | Hip prostheses extractor with sliding mass |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940127A3 (en) * | 1998-03-02 | 2000-11-02 | Benoist Girard Et Cie | Prosthesis inserter |
| FR2794642A1 (en) * | 1999-06-08 | 2000-12-15 | Jacques Caton | Extractor for Charnley-type hip prosthesis comprises locking assembly and impaction member |
| US11957363B2 (en) | 2003-11-18 | 2024-04-16 | Smith & Nephew, Inc. | Surgical technique and instrumentation for minimal incision hip arthroplasty surgery |
| US11219467B2 (en) | 2003-11-18 | 2022-01-11 | Smith & Nephew, Inc. | Surgical technique and instrumentation for minimal incision hip arthroplasty surgery |
| US9622758B2 (en) | 2003-11-18 | 2017-04-18 | Smith & Nephew, Inc. | Surgical technique and instrumentation for minimal incision hip arthroplasty surgery |
| US9615837B2 (en) | 2003-11-18 | 2017-04-11 | Smith & Nephew, Inc. | Surgical technique and instrumentation for minimal incision hip arthroplasty surgery |
| US9526512B2 (en) | 2003-11-18 | 2016-12-27 | Smith & Nephew, Inc. | Universal double offset surgical instrument |
| WO2007068219A1 (en) * | 2005-12-15 | 2007-06-21 | Mueller Erich Johann | Surgical tool and method |
| EP2236107A1 (en) * | 2006-03-06 | 2010-10-06 | Howmedica Osteonics Corp. | Compound offset handle |
| US8690880B2 (en) | 2006-03-06 | 2014-04-08 | Howmedica Osteonics Corp. | Compound offset handle |
| US8512345B2 (en) | 2006-03-06 | 2013-08-20 | Howmedica Osteonics Corp. | Compound offset handle |
| US8337502B2 (en) | 2006-03-06 | 2012-12-25 | Howmedica Osteonics Corp. | Compound offset handle |
| US7935125B2 (en) | 2006-03-06 | 2011-05-03 | Howmedica Osteonics Corp. | Compound offset handle |
| FR2963733A1 (en) * | 2010-08-16 | 2012-02-17 | Advanced Technical Fabrication | Prosthetic femoral stem and removable prosthetic cervix assembly, has gripper including connection units for fixing connection units on proximal gripping end of temporary insert in which proximal end exceeds out of cavity to fix gripper |
| US9089440B2 (en) | 2013-01-22 | 2015-07-28 | Erich Johann MUELLER | Knockout tool for minimally invasive prosthesis revision |
| DE102013200924A1 (en) * | 2013-01-22 | 2014-07-24 | Erich Johann Müller | Razor tool for minimally invasive prosthesis revision |
| WO2019169357A1 (en) * | 2018-03-01 | 2019-09-06 | Alden Kris | Prosthetic component extractor |
| US11382766B2 (en) | 2018-03-01 | 2022-07-12 | Kris ALDEN | Prosthetic component extractor |
| EP3578139A1 (en) * | 2018-06-06 | 2019-12-11 | Müller, Erich Johann | Modular surgical instrument |
| US10912656B2 (en) | 2018-06-06 | 2021-02-09 | Erich Johann Müller | Modular surgical instrument |
| EP3895666A1 (en) * | 2020-04-14 | 2021-10-20 | Shukla Medical | Implant extractor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2742334B1 (en) | 1998-05-15 |
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| TP | Transmission of property | ||
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