FR2755005A1 - Selection and positioning device for trapeziometacarpal joint prosthesis - Google Patents

Selection and positioning device for trapeziometacarpal joint prosthesis Download PDF

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Publication number
FR2755005A1
FR2755005A1 FR9613214A FR9613214A FR2755005A1 FR 2755005 A1 FR2755005 A1 FR 2755005A1 FR 9613214 A FR9613214 A FR 9613214A FR 9613214 A FR9613214 A FR 9613214A FR 2755005 A1 FR2755005 A1 FR 2755005A1
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France
Prior art keywords
test
rod
metacarpal
head
elements
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
Application number
FR9613214A
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French (fr)
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FR2755005B1 (en
Inventor
Patrick Boudarel
Rene Boudarel
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PROVIS SA
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PROVIS SA
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Priority to FR9613214A priority Critical patent/FR2755005B1/en
Publication of FR2755005A1 publication Critical patent/FR2755005A1/en
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Publication of FR2755005B1 publication Critical patent/FR2755005B1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
    • A61B17/1686—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the hand or wrist
    • 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
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
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    • 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
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    • 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
    • A61F2/4606—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of wrists or ankles; of hands, e.g. fingers; of feet, e.g. toes
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    • 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
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    • 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
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    • 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
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    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
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    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0067—Three-dimensional shapes conical

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Dentistry (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Prostheses (AREA)

Abstract

The device comprises a set of test elements, which replicate each element of a prosthesis. A metacarpal rod (1) fits in the first metacarpal, and a spherical head (2) co-operates with a complementary socket (3) in the trapezius. Each of the test inserts has visual indicators and positioning guides which do not allow permanent connection of the elements of the prosthesis. Each of the inserts has temporary couplings with the implements for positioning them. The test rod can have vertical recesses (1c), at the level of its upper face, which are offset angularly with respect to indexing holes in the rod of the actual prosthesis. The test head can have a finger (2b1), which engages with one of the rod recesses, and a centring bearing (2c), which corresponds with an internal bearing in the test rod. The centring bearing extends coaxially along a guide pin (2d), which co-operates with a bore formed coaxially to the internal bearing.

Description

Dispositif pour la sélection et la mise en place d'une prothèse pour l'articulation trapézo métacarpienne. Device for the selection and placement of a prosthesis for the trapezoid metacarpal joint.

L'invention se rattache au secteur technique de l'articulation des
membres supérieurs.The invention relates to the technical sector of the articulation of
upper members.

Plus particulièrement, l'invention concerne un dispositif pour la
mise en place d'une prothèse trapézo métacarpienne du type de celle
décrite dans la demande de brevet FR 2720628.More particularly, the invention relates to a device for the
placement of a metacarpal trapezoid prosthesis of the type
described in patent application FR 2720628.

On rappelle que cette prothèse comprend une tige apte à être
implantée dans le premier métacarpien et une cupule apte à être implantée
dans le trapèze. La tige métacarpienne reçoit avec capacité de fixation et
d'indexation angulaire, une tête d'articulation sphérique, coopérant avec la
cupule. La tête d'articulation est orientée angulairement par rapport à une
embase qui présente une portée de centrage coopérant avec un logement
complémentaire que présente la tige. La portée de centrage et le logement
correspondant sont de forme tronconiques. L'embase présente, en
débordement, un pion de centrage apte à être engagé successivement dans
des trous décalés angulairement et formés au niveau de la face d'appui de
la tige métacarpienne.It will be recalled that this prosthesis comprises a rod capable of being
implanted in the first metacarpal bone and a cup capable of being implanted
in the trapeze. The metacarpal rod receives with fixing capacity and
angular indexing, a spherical joint head, cooperating with the
cup. The articulation head is oriented angularly with respect to a
base which has a centering surface cooperating with a housing
complementary to the stem. Centering range and housing
corresponding are frustoconical. The base presents, in
overflow, a centering pin capable of being successively engaged in
angularly offset holes formed at the bearing face of
the metacarpal stem.

Ces dispositions constructives permettent d'orienter la tête d'articulation par rapport à l'axe longitudinal de la tige métacarpienne tout en permettant d'utiliser indiféremment la prothèse pour une articulation métacarpienne droite ou pour une articulation métacarpienne gauche.  These constructive arrangements make it possible to orient the articulation head relative to the longitudinal axis of the metacarpal rod while allowing the prosthesis to be used indifferently for a right metacarpal joint or for a left metacarpal joint.

A partir de cette conception de base, il est apparu important de pouvoir sélectionner de manière simple et précise, les tailles des éléments prothétiques à implanter, eu égard à l'anatomie de l'articulation trapézométacarpienne considérée. From this basic conception, it appeared important to be able to select in a simple and precise manner, the sizes of the prosthetic elements to be implanted, having regard to the anatomy of the trapezometacarpal joint considered.

De manière générale, pour la mise en place d'une prothèse, quels que soient du reste son type et son application, on utilise des implants dits d'essais. Après avoir déterminé la taille et éventuellement le profil des implants d'essais, on les remplace par les éléments prothétiques définitifs. In general, for the installation of a prosthesis, whatever its type and its application, so-called trial implants are used. After determining the size and possibly the profile of the trial implants, they are replaced by the final prosthetic elements.

Cette technique ne pose pas de problèmes particuliers pour les prothèses d'articulation de tailles relativement importantes tels que la hanche, le genou ou autres. Ce n'est pas le cas pour une articulation trapézo métacarpienne où les différents éléments de la prothèse sont de taille relativement réduite. I1 y a donc des risques importants à ce que l'opérateur puisse, par inadvertance, au moment de l'intervention, mélanger un implant d'essai avec un implant définitif, ou inversement, ou oublier de remplacer l'implant d'essai déterminé par l'implant définitif correspondant. I1 en résulte bien évidemment, des risques opératoirs importants.This technique does not pose any particular problems for joint prostheses of relatively large sizes such as the hip, the knee or others. This is not the case for a trapezoid metacarpal joint where the different elements of the prosthesis are relatively small in size. There are therefore significant risks that the operator may inadvertently, at the time of the intervention, mix a trial implant with a final implant, or vice versa, or forget to replace the determined trial implant. by the corresponding final implant. This obviously results in significant operating risks.

L'invention s'est fixée pour but de remédier à ces inconvénients, de manière simple, sûre, efficace et rationnelle. The object of the invention is to remedy these drawbacks in a simple, safe, effective and rational manner.

Le problème que se propose de résoudre l'invention est d'éviter de mélanger les implants d'essai et les implants définitifs et d'interdire, par exemple, d'impacter l'implant d'essai sur un implant définitif et inversement.  The problem which the invention proposes to solve is to avoid mixing the trial implants and the final implants and to prohibit, for example, from impacting the trial implant on a final implant and vice versa.

Pour résoudre un tel problème, il a été conçu et mis au point un dispositif qui comprend, pour chacun des éléments de la prothèse, une série d'élément dits d'essai remplissant la même fonction à savoir une tige d'essai métacarpienne, une tête d'essai d'articulation, un insert ou cupule trapézoïdien, chacun des éléments d'essai présentant des moyens d'indication visuelle et des agencements de positionnement ne permettant pas de les accoupler d'une manière définitive avec les éléments de la prothèse, chacun des éléments d'essai présente des moyens d'accouplement temporaires avec des organes de manoeuvre pour leur mise en place. To solve such a problem, a device has been designed and developed which comprises, for each of the elements of the prosthesis, a series of so-called test elements fulfilling the same function, namely a metacarpal test rod, a articulation test head, a trapezoidal insert or cup, each of the test elements having visual indication means and positioning arrangements which do not allow them to be permanently coupled with the elements of the prosthesis, each of the test elements has temporary coupling means with operating members for their positioning.

Pour résoudre le problème posé de rendre parfaitement distinctive la tige d'essai métarcarpienne par rapport à la tige métacarpienne définitive, la tige d'essai métarcarpienne présente facialement, au niveau de sa face de desssus, des encoches verticales décalées angulairement en correspondance avec des trous d'indexation que présente la tige métacarpienne définitive. To resolve the problem posed of making the metarcarpal test rod perfectly distinctive with respect to the final metacarpal rod, the metarcarpal test rod has facial notches, at its top face, vertical notches angularly offset in correspondence with holes indexation of the definitive metacarpal shaft.

Pour résoudre le problème posé de ne permettre l'accouplement
de la tête d'essai d'articulation que sur la tige d'essai métacarpienne, la
tête d'essai d'articulation présente un doigt débordant coopérant avec l'une
des encoches et une portée de centrage.To solve the problem of not allowing mating
of the joint test head that on the metacarpal test rod the
joint test head has a protruding finger cooperating with one
notches and a centering span.

Compte tenu de ces dispositions, il n'est donc pas possible
d'accoupler par inadvertance la tête d'essai d'articulation sur la tige
métacarpienne définitive étant donné, comme indiqué, que la portée de
centrage de la tête d'essai est cylindrique tandis que la portée interne de la
tige métacarpienne définitive est tronconique.In view of these provisions, it is therefore not possible
inadvertently coupling the articulation test head to the rod
metacarpal definite given, as noted, that the scope of
centering of the test head is cylindrical while the internal range of the
final metacarpal stem is frustoconical.

Pour résoudre le problème posé d'assurer la mise en place de la
tige d'essai métacarpienne, l'alésage de la tige d'essai formé coaxialement
à la portée conique est taraudé pour coopérer avec une portée filetée d'un
organe de manoeuvre.To solve the problem of ensuring the establishment of the
metacarpal test rod, the bore of the test rod formed coaxially
to the tapered seat is tapped to cooperate with a threaded seat of a
operating device.

Pour résoudre le problème posé de vérifier la mise en place de l'élément trapézoidien, l'insert ou cupule d'essai présente un chambrage interne recevant avec capacité d'orientation angulaire la tête sphérique d'articulation de l'élément d'essai correspondant, ledit chambrage étant prolongé coaxialement par un trou taraudé pour coopérer avec une portée filetée d'un organe de manoeuvre. L'insert est en matière plastique, notamment en polyéthylène. To resolve the problem posed of verifying the placement of the trapezoid element, the insert or test cup has an internal recess receiving with angular orientation capacity the spherical articulation head of the corresponding test element , said recess being extended coaxially by a tapped hole to cooperate with a threaded surface of an operating member. The insert is made of plastic, in particular polyethylene.

Pour résoudre le problème posé de mettre en place la tête
d'articulation d'essai sur la tige métacarpienne d'essai, l'organe de
manoeuvre de la tête d'articulation d'essai est constitué par un manchon
cylindrique vissé en bout d'un manche, ledit manchon présentant une
portée interne disposée angulairement par rapport à son axe pour coopérer
avec l'embase de la tête sphérique, l'angulation étant déterminée pour que
la portée de centrage de la tête soit en alignement coaxial avec ledit
manchon.To solve the problem of putting the head in place
of articulation of test on the metacarpal rod of test, the organ of
operation of the test articulation head consists of a sleeve
cylindrical screwed at the end of a handle, said sleeve having a
internal bearing arranged angularly with respect to its axis to cooperate
with the base of the spherical head, the angulation being determined so that
the centering surface of the head is in coaxial alignment with said
muff.

Un autre problème que se propose de résoudre l'invention est de
mesurer la distance séparant la face supérieure d'appui de la tige d'essai métacarpienne de la cupule d'essai trapézoïdienne, afin de déterminer la hauteur de la tête d'articulation.Another problem which the invention proposes to solve is to
measure the distance between the upper bearing surface of the metacarpal test rod and the trapezoidal test cup, to determine the height of the articulation head.

Dans ce but, l'empreinte ou chambrage interne de la cupule d'essai et la portée de centrage de la tige d'essai coopérant respectivement avec un plot formé en débordement des deux faces opposées que présente un bloc entretoise apte à être inserré entre ladite cupule et ladite tige. Les deux faces sont disposées angulairement l'une par rapport à l'autre. For this purpose, the imprint or internal recess of the test cup and the centering surface of the test rod cooperating respectively with a stud formed in overflow from the two opposite faces that has a spacer block able to be inserted between said cup and said rod. The two faces are arranged angularly with respect to each other.

L'invention est exposée ci-après plus en détail à l'aide des dessins annexés, dans lesquels:
La figure 1 est une vue en perspective avant accouplement des principaux éléments de la prothèse d'essai trapézo métacarpienne.The invention is set out below in more detail with the aid of the appended drawings, in which:
Figure 1 is a perspective view before coupling of the main elements of the trapezoid metacarpal prosthesis.

Les figures 2, 3, 4, 5, 6, 7, 8 et 9 montrent les principales phases pour la mise en place et la sélection des éléments prothétiques d'essai. Figures 2, 3, 4, 5, 6, 7, 8 and 9 show the main phases for the placement and selection of prosthetic trial elements.

On rappelle, comme déjà indiqué, que le dispositif de sélection et de mise en place d'une prothèse pour l'articulation trapézo métacarpienne s'applique avantageusement pour une articulation du type de celle définie dans la demande de brevet FR 2720628. On rappelle à cet égard, que ce type de prothèse comprend essentiellement une tige profilée métacarpienne, une tête d'articulation orientable angulairement et une cupule ou insert destinée à être-impactée au niveau du trapèze. It will be recalled, as already indicated, that the device for selecting and placing a prosthesis for the trapezoid metacarpal joint advantageously applies for a joint of the type defined in patent application FR 2720628. In this regard, that this type of prosthesis essentially comprises a profiled metacarpal rod, an articular head that can be angularly oriented and a cup or insert intended to be impacted at the level of the trapezium.

Selon l'invention, le dispositif comprend, pour chacun des éléments précités, une série d'éléments dits d'essais, reproduisant très exactement la même fonction que les implants définitifs.  According to the invention, the device comprises, for each of the abovementioned elements, a series of so-called test elements, reproducing very exactly the same function as the final implants.

Dans ce but, le dispositif comprend une série de tiges d'essais métacarpienne (1), une série de têtes d'essais d'articulation (2) et une série d'inserts ou cupules d'essais trapézoïdiens (3) (figure 1). For this purpose, the device includes a series of metacarpal test rods (1), a series of articulation test heads (2) and a series of trapezoidal test inserts or cups (3) (Figure 1 ).

La tige d'essai métacarpienne présente très exactement le même profil que la tige métacarpienne définitive. Cette tige (1) est profilée et présente un méplat anti rotatoire (la). The metacarpal test rod has very exactly the same profile as the final metacarpal rod. This rod (1) is profiled and has an anti-rotary flat (la).

Selon une caractéristique à la base de l'invention, la tige d'essai (1) présente facialement, au niveau de sa face de dessus (lb), des encoches verticales (lc) décalées angulairement en correspondance avec des trous d'indexation que présente la tige métacarpienne définitive. Les encoches (lc) sont par exemple au nombre de trois et sont décalées angulairement selon un angle d'environ 30 par rapport à l'axe de symétrie de la tige (1). According to a basic characteristic of the invention, the test rod (1) has, on its top face (lb), facial notches vertical (lc) offset angularly in correspondence with indexing holes that presents the definitive metacarpal stem. The notches (lc) are for example three in number and are angularly offset at an angle of about 30 relative to the axis of symmetry of the rod (1).

Par ailleurs, cette tige d'essai (1) présente une portée interne de centrage circulaire (nid) prolongée coaxialement par un alésage de plus petit diamètre (le) taraudé sur une partie de sa longueur au moins, pour coopérer avec un organe de manoeuvre, comme il sera indiqué dans la suite de la description.Furthermore, this test rod (1) has an internal circular centering surface (nest) extended coaxially by a bore of smaller diameter (the) tapped over part of its length at least, to cooperate with an operating member. , as will be indicated in the following description.

L'élément d'articulation d'essai (2) comprend une tête sphérique (2a) orientée angulairement par rapport à une embase (2b) qui présente un doigt débordant (2bl) apte à être engagé successivement dans l'une quelconque des encoches (Ic) de la tige d'essai (1). Cette embase est ellemême prolongée par une portée de centrage cylindrique (2c) coopérant avec la portée circulaire interne (nid) de la tige métacarpienne d'essai (1). The test articulation element (2) comprises a spherical head (2a) oriented angularly with respect to a base (2b) which has an overhanging finger (2bl) capable of being successively engaged in any one of the notches ( Ic) of the test rod (1). This base is itself extended by a cylindrical centering surface (2c) cooperating with the internal circular surface (nest) of the metacarpal test rod (1).

La portée cylindrique (2c) est prolongée coaxialement par une broche de guidage (2d) apte à coopérer avec l'alésage (le) de la tige d'essai (1). The cylindrical bearing surface (2c) is extended coaxially by a guide pin (2d) capable of cooperating with the bore (le) of the test rod (1).

A noter que la broche (2d) peut être constituée par un élément indépendant vissé dans l'embase (2b) et la portée (2c). Note that the spindle (2d) may consist of an independent element screwed into the base (2b) and the bearing (2c).

La cupule d'essai trapézoïdienne (3) se présente sous forme d'un corps monobloc (3a) exécuté en matière plastique, notamment en polyéthylène. Notamment, le corps (3a) est profilé par exemple sous forme d'un tronc de cône prolongé par une calotte hémisphérique, sans pour cela exclure d'autres formes extérieures. Le corps (3a) présente un chambrage interne (3b) sous forme sensiblement d'une calotte sphérique apte à recevoir, avec capacité d'orientation angulaire, la tête sphérique d'articulation (2a) de l'élément d'essai (2). Ce chambrage interne (3b) est prolongé coaxialement par un trou taraudé (3c) pour coopérer avec une portée filetée d'un organe de manoeuvre, comme il sera indiqué dans la suite de la description. The trapezoidal test cup (3) is in the form of a one-piece body (3a) made of plastic, in particular polyethylene. In particular, the body (3a) is profiled, for example in the form of a truncated cone extended by a hemispherical cap, without thereby excluding other external shapes. The body (3a) has an internal recess (3b) in the form of a substantially spherical cap capable of receiving, with angular orientation capacity, the spherical articulation head (2a) of the test element (2) . This internal recess (3b) is extended coaxially by a tapped hole (3c) to cooperate with a threaded surface of an operating member, as will be indicated in the following description.

Compte tenu de ces dispositions, la mise en place de ces différents éléments d'essai (1) (2) (3), préalablement à la mise en place de la prothèse d'articulation définitive, s'effectue comme suit:
On procède tout d'abord à la conformation du canal métacarpien.In view of these provisions, the installation of these different test elements (1) (2) (3), prior to the installation of the final articulation prosthesis, is carried out as follows:
First we proceed to the conformation of the metacarpal canal.

Dans ce but, on utilise un outil (4) muni en bout, d'une râpe (5) dont le profil correspond au profil de la tige d'essai métacarpienne et, par conséquent, à la tige métacarpienne définitive (figure 2). Cette râpe (5) a pour effet de repousser l'os spongieux.For this purpose, a tool (4) is used which is fitted at the end with a rasp (5) whose profile corresponds to the profile of the metacarpal test rod and, consequently, to the final metacarpal rod (FIG. 2). This rasp (5) has the effect of pushing back the cancellous bone.

A noter que le profil et les dimensions de la râpe (5) sont déterminés pour correspondre à toutes les tailles de la tige métacarpienne.  Note that the profile and dimensions of the rasp (5) are determined to correspond to all sizes of the metacarpal stem.

Lorsqu'on arrive en butée et en coincement avec la corticale de l'os, on engage, dans le canal métacarpien ainsi formé, un gabarit d'essai (6) fixé par exemple en bout de l'outil (4) en remplacement de la râpe (5). Ce gabarit (6) présente dans son extrémité supérieure une série de repères (6a) correspondant aux différentes tailles de la tige d'essai métacarpienne. On sélectionne ainsi la tige d'essai métacarpienne correspondante. Après avoir repéré cette sélection, on accouple la tige d'essai en bout d'un outil (7) qui présente une portée filetée (7a) destinée à être vissée dans le taraudage (le) de la tige (1) (figure 4).When one arrives in abutment and stuck with the cortex of the bone, one engages, in the metacarpal canal thus formed, a test template (6) fixed for example at the end of the tool (4) in replacement of the grater (5). This template (6) has at its upper end a series of marks (6a) corresponding to the different sizes of the metacarpal test rod. The corresponding metacarpal test rod is thus selected. After having identified this selection, the test rod is coupled to the end of a tool (7) which has a threaded seat (7a) intended to be screwed into the thread (le) of the rod (1) (FIG. 4) .

On intervient ensuite au moyen d'une fraise (8) au niveau du trapèze pour la mise en place de l'insert d'essai (3) au moyen d'un outil (9) présentant une portée filetée (9a) vissée dans le trou taraudé (figure 6). We then intervene by means of a milling cutter (8) at the level of the trapezoid for the positioning of the test insert (3) by means of a tool (9) having a threaded seat (9a) screwed into the tapped hole (Figure 6).

Après mise en place de la tige métacarpienne d'essai (1) et de l'insert d'essai (2), il convient de déterminer la hauteur de la tête d'articulation d'essai (3). Dans ce but, on interpose, entre les deux éléments d'essai (1) et (3), un bloc entretoise (10) présentant deux plots (10a) (lOb) coopérant respectivement avec l'empreinte hémisphérique (3b) de l'insert d'essai (3) et la portée de centrage (nid) de la tige d'essai (1) (figure 7). Les deux plots (lOa) et (lOb) sont formés en débordement à partir de deux faces opposées disposées angulairement l'une par rapport à l'autre, pour correspondre sensiblement à l'orientation de la tête sphérique d'articulation de l'élément d'essai (2). After placing the test metacarpal rod (1) and the test insert (2), the height of the test articulation head (3) should be determined. For this purpose, there is interposed, between the two test elements (1) and (3), a spacer block (10) having two studs (10a) (10b) cooperating respectively with the hemispherical imprint (3b) of the test insert (3) and the centering surface (nest) of the test rod (1) (Figure 7). The two studs (lOa) and (lOb) are formed in overflow from two opposite faces arranged angularly with respect to each other, to correspond substantially to the orientation of the spherical head of articulation of the element. test (2).

Après avoir sélectionné la hauteur de l'élément d'essai d'articulation (2), ce dernier est mis en place au moyen d'un manchon cylindrique (11) vissé en bout d'un organe de manoeuvre (12). Ce manchon (11) présente un logement incliné (1 la) apte à recevoir la tête d'articulation (2), notamment l'embase (2b). Ce logement (1 la) est orienté angulairement par rapport à l'axe du manchon, de sorte qu'après engagement de l'embase (2b), la portée de centrage (2c) se trouve en alignement coaxialement avec ledit manchon (11) (figure 8). Ce manchon (11) permet la mise en place rapide et aisée de l'élément d'essai (2). La broche (2d) est engagée dans l'alésage (le) tandis que la portée de centrage (2c) est engagée dans la portée circulaire interne (nid) de la tige d'essai métacarpienne (1). Le pion (2bl) est engagé en fonction de la rotation angulaire souhaitée dans l'une des encoches (il).  After having selected the height of the articulation test element (2), the latter is put in place by means of a cylindrical sleeve (11) screwed at the end of an operating member (12). This sleeve (11) has an inclined housing (1a) capable of receiving the articulation head (2), in particular the base (2b). This housing (1 la) is oriented angularly relative to the axis of the sleeve, so that after engagement of the base (2b), the centering surface (2c) is in alignment coaxially with said sleeve (11) (figure 8). This sleeve (11) allows quick and easy installation of the test element (2). The spindle (2d) is engaged in the bore (le) while the centering bearing (2c) is engaged in the internal circular bearing (nest) of the metacarpal test rod (1). The pin (2bl) is engaged according to the desired angular rotation in one of the notches (it).

Compte tenu des dispositions caractéristiques de chacun des éléments (1) (2) et (3), il n'est pas possible au praticien de le mélanger avec les implants définitifs, étant donné que chacun des implants d'essai (1) (2) et (3) présente des caractéristiques visuelles et des caractéristiques constructives parfaitement distinctives de celles des implants définitifs. Par exemple, la tige métacarpienne (1) est parfaitement distinctive par la présence des encoches (il), en opposition à la tige métacarpienne définitive qui présente seulement des trous d'indexation angulaires, formés au niveau de sa face supérieure. Given the characteristic arrangements of each of the elements (1) (2) and (3), it is not possible for the practitioner to mix it with the final implants, since each of the trial implants (1) (2 ) and (3) has visual characteristics and constructive characteristics which are perfectly distinctive from those of the final implants. For example, the metacarpal rod (1) is perfectly distinctive by the presence of the notches (il), in opposition to the final metacarpal rod which has only angular indexing holes, formed at its upper face.

En ce qui concerne la tête d'articulation d'essai (2), cette dernière présente une portée de centrage cylindrique de sorte qu'il n'est pas possible de l'engager par inadvertance, dans la portée tronconique de centrage que présente la tige métacarpienne définitive.  As regards the test articulation head (2), the latter has a cylindrical centering seat so that it is not possible to inadvertently engage it in the frustoconical centering seat which the definitive metacarpal stem.

I1 n'est pas possible d'engager l'élément d'articulation définitif dans une tige métacarpienne d'essai, étant donné que l'élément d'articulation définitif présente une portée tronconique de centrage, ce qui n'est pas le cas de la tige métacarpienne d'essai. Quant à l'insert d'essai (3), ce dernier est réalisé en matière plastique, en polyéthylène, selon différentes couleurs, ce qui n'est pas le cas de l'implant définitif. It is not possible to engage the definitive articulation element in a metacarpal test rod, since the definitive articulation element has a frustoconical centering bearing, which is not the case for the test metacarpal shaft. As for the test insert (3), the latter is made of plastic, polyethylene, in different colors, which is not the case with the final implant.

Les avantages ressortent bien de la description.  The advantages are apparent from the description.

Claims (9)

REVENDICATIONS 1.Dispositif pour la sélection et la mise en place d'une prothèse pour l'articulation trapézo-métacarpienne comprenant une tige profilée, apte à être implantée dans le premier métacarpien, et recevant avec capacité d'indexation angulaire, une tête d'articulation sphérique coopérant avec une cavité complémentaire d'un insert implanté dans le trapèze, caractérisé en ce qu'il comprend, pour chacun des éléments de la prothèse, une série d'élément dits d'essai (1) (2) (3) remplissant la même fonction à savoir une tige d'essai métacarpienne (1), une tête d'essai d'articulation (2), un insert ou cupule trapézoïdien (3), chacun des éléments - d'essai présentant des moyens d'indication visuelle et des agencements de positionnement ne permettant pas de les accoupler d'une manière définitive avec les éléments de la prothèse, chacun des éléments d'essai présente des moyens d'accouplement temporaires avec des organes de manoeuvre pour leur mise en place. 1.Device for the selection and placement of a prosthesis for the trapezo-metacarpal joint comprising a profiled rod, suitable for being implanted in the first metacarpal bone, and receiving with an angular indexing capacity, a joint head spherical cooperating with a complementary cavity of an insert implanted in the trapezium, characterized in that it comprises, for each of the elements of the prosthesis, a series of so-called test elements (1) (2) (3) filling the same function, namely a metacarpal test rod (1), a joint test head (2), a trapezoidal insert or cup (3), each of the test elements having visual indication means and positioning arrangements which do not make it possible to couple them definitively with the elements of the prosthesis, each of the test elements has temporary coupling means with operating members for their positioning. 2.Dispositif selon la revendication 1, caractérisé en ce que la tige d'essai métarcarpienne (1) présente facialement, au niveau de sa face de desssus, des encoches verticales (lc) décalées angulairement en correspondance avec des trous d'indexation que présente la tige métacarpienne définitive. 2. Device according to claim 1, characterized in that the metarcarpal test rod (1) has, at the face of its top face, vertical notches (lc) angularly offset in correspondence with indexing holes that present the final metacarpal stem. 3.Dispositif selon les revendications 1 et 2, caractérisé en ce que la tête d'essai d'articulation (2) présente un doigt débordant (2bl) coopérant avec l'une des encoches (lc) et une portée de centrage cylindrique coaxiale (2c) coopérant avec une portée interne cylindrique (nid) de la tige d'essai (1), ladite portée de centrage étant prolongée coaxialement par une broche de guidage (2d) coopérant avec un alésage (le) formé coaxialement à ladite portée interne. 3. Device according to claims 1 and 2, characterized in that the articulation test head (2) has an overhanging finger (2bl) cooperating with one of the notches (lc) and a coaxial cylindrical centering surface ( 2c) cooperating with a cylindrical internal surface (nest) of the test rod (1), said centering surface being extended coaxially by a guide pin (2d) cooperating with a bore (le) formed coaxially with said internal surface. 4.Dispositif selon la revendication 3, caractérisé en ce que l'alésage de la tige d'essai (1) formé coaxialement à la portée conique est taraudé pour coopérer avec une portée filetée (7a) d'un organe de manoeuvre (7). 4. Device according to claim 3, characterized in that the bore of the test rod (1) formed coaxially with the conical bearing is tapped to cooperate with a threaded bearing (7a) of an operating member (7) . 5.Dispositif selon la revendication 1, caractérisé en ce que l'insert ou cupule d'essai (3) présente un chambrage interne (3b) recevant avec capacité d'orientation angulaire la tête sphérique d'articulation (2a) de l'élément d'essai correspondant (2), ledit chambrage étant prolongé coaxialement par un trou taraudé (3c) pour coopérer avec une portée filetée (9a) d'un organe de manoeuvre (9). 5. Device according to claim 1, characterized in that the insert or test cup (3) has an internal recess (3b) receiving with angular orientation capacity the spherical articulation head (2a) of the element corresponding test (2), said recess being extended coaxially by a threaded hole (3c) to cooperate with a threaded surface (9a) of an operating member (9). 6.Dispositif selon la revendication 5, caractérisé en ce que l'insert (3) est en matière plastique, notamment en polyéthylène. 6. Device according to claim 5, characterized in that the insert (3) is made of plastic, in particular polyethylene. 7.Dispositif selon la revendication 1, caractérisé en ce que l'organe de manoeuvre de la tête d'articulation d'essai (2) est constitué par un manchon cylindrique (11) vissé en bout d'un manche (12), ledit manchon (11) présentant une portée interne (1 la) disposée angulairement par rapport à son axe pour coopérer avec l'embase (2b) de la tête sphérique (2a), l'angulation étant déterminée pour que la portée de centrage de la tête soit en alignement coaxial avec ledit manchon.  7. Device according to claim 1, characterized in that the operating member of the test articulation head (2) consists of a cylindrical sleeve (11) screwed at the end of a handle (12), said sleeve (11) having an internal bearing (1a) arranged angularly with respect to its axis to cooperate with the base (2b) of the spherical head (2a), the angulation being determined so that the centering bearing of the head either in coaxial alignment with said sleeve. 8.Dispositif selon la revendication 5, caractérisé en ce que l'empreinte ou chambrage interne (3b) de la cupule d'essai (3) et la portée de centrage (ld) de la tige d'essai (1) coopérant respectivement avec un plot (lOa) (lOb) formé en débordement des deux faces opposées que présente un bloc entretoise (10) apte à être inserré entre ladite cupule (3) et ladite tige (1). 8. Device according to claim 5, characterized in that the impression or internal recess (3b) of the test cup (3) and the centering surface (ld) of the test rod (1) cooperating respectively with a stud (lOa) (lOb) formed in overflow from the two opposite faces that has a spacer block (10) adapted to be inserted between said cup (3) and said rod (1). 9.Dispositif selon la revendication 8, caractérisé en ce que les deux faces sont disposées angulairement l'une par rapport à l'autre.  9. Device according to claim 8, characterized in that the two faces are arranged angularly with respect to each other.
FR9613214A 1996-10-24 1996-10-24 DEVICE FOR THE SELECTION AND PLACEMENT OF A PROSTHESIS FOR THE TRAPEZO METACARPIAN JOINT Expired - Fee Related FR2755005B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003075806A1 (en) 2002-03-06 2003-09-18 Smith & Nephew, Inc. Intramedullary trial fixation device
FR2931059A1 (en) * 2008-05-16 2009-11-20 Memometal Technologies Soc Par PROSTHESIS OF JOINT BETWEEN TWO BONES, IN PARTICULAR PROTHESIS TRAPEZO-METACARPIENNE
EP3009107A1 (en) * 2014-10-16 2016-04-20 Groupe Lepine Assembly comprising a compact cup-shaped implant and method for forming said assembly
FR3035319A1 (en) * 2015-04-23 2016-10-28 Cie Financiere Et Medicale ASSEMBLY OF ELEMENTS FOR RECONSTITUTING BONE JOINT BETWEEN LONG BONE AND CONJUGATED BONE
FR3063888A1 (en) * 2017-03-20 2018-09-21 Hands Up ASSEMBLY OF ELEMENTS COMPRISING ELEMENTS FOR THE CONSTITUTION OF A PROSTHESIS OF ARTICULATION FOR SMALL BONES AND AN INSTRUMENT FOR THE INSTALLATION OF THIS PROSTHESIS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963155A (en) * 1989-08-30 1990-10-16 Zimmer, Inc. Attachment mechanism for modular surgical products
WO1992003993A1 (en) * 1990-09-04 1992-03-19 Howmedica Inc. Modular trial hip replacement system
FR2670109A1 (en) * 1990-10-15 1992-06-12 Lacaffiniere Jean Yves De Total trapeziometacarpal prosthesis with intermediate component
US5156626A (en) * 1990-06-29 1992-10-20 Zimmer, Inc. Set of provisional prosthesis instrumentation
FR2720628A1 (en) * 1994-06-03 1995-12-08 Provis Sa Trapezo-metacarpal joint prosthesis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963155A (en) * 1989-08-30 1990-10-16 Zimmer, Inc. Attachment mechanism for modular surgical products
US5156626A (en) * 1990-06-29 1992-10-20 Zimmer, Inc. Set of provisional prosthesis instrumentation
WO1992003993A1 (en) * 1990-09-04 1992-03-19 Howmedica Inc. Modular trial hip replacement system
FR2670109A1 (en) * 1990-10-15 1992-06-12 Lacaffiniere Jean Yves De Total trapeziometacarpal prosthesis with intermediate component
FR2720628A1 (en) * 1994-06-03 1995-12-08 Provis Sa Trapezo-metacarpal joint prosthesis

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003075806A1 (en) 2002-03-06 2003-09-18 Smith & Nephew, Inc. Intramedullary trial fixation device
AU2003225676B2 (en) * 2002-03-06 2009-01-08 Smith & Nephew, Inc. Intramedullary trial fixation device
FR2931059A1 (en) * 2008-05-16 2009-11-20 Memometal Technologies Soc Par PROSTHESIS OF JOINT BETWEEN TWO BONES, IN PARTICULAR PROTHESIS TRAPEZO-METACARPIENNE
WO2009150320A1 (en) * 2008-05-16 2009-12-17 Memometal Technologies Trapezio-metacarpal joint prosthesis
EP3009107A1 (en) * 2014-10-16 2016-04-20 Groupe Lepine Assembly comprising a compact cup-shaped implant and method for forming said assembly
FR3027214A1 (en) * 2014-10-16 2016-04-22 Groupe Lepine ASSEMBLY COMPRISING A CUP-SHAPED IMPLANT OF REDUCED DIMENSIONS AND A PREHENSEUR / IMPACTOR OF THIS IMPLANT, AND METHOD OF CONSTITUTING THE SAME
FR3035319A1 (en) * 2015-04-23 2016-10-28 Cie Financiere Et Medicale ASSEMBLY OF ELEMENTS FOR RECONSTITUTING BONE JOINT BETWEEN LONG BONE AND CONJUGATED BONE
FR3063888A1 (en) * 2017-03-20 2018-09-21 Hands Up ASSEMBLY OF ELEMENTS COMPRISING ELEMENTS FOR THE CONSTITUTION OF A PROSTHESIS OF ARTICULATION FOR SMALL BONES AND AN INSTRUMENT FOR THE INSTALLATION OF THIS PROSTHESIS
WO2018172660A1 (en) 2017-03-20 2018-09-27 Hands Up Set of elements comprising a joint prosthesis for small bones and an instrument allowing this prosthesis to be fitted

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