WO2003013398A1 - Prothese d'articulation, notamment digitale - Google Patents
Prothese d'articulation, notamment digitale Download PDFInfo
- Publication number
- WO2003013398A1 WO2003013398A1 PCT/FR2002/002815 FR0202815W WO03013398A1 WO 2003013398 A1 WO2003013398 A1 WO 2003013398A1 FR 0202815 W FR0202815 W FR 0202815W WO 03013398 A1 WO03013398 A1 WO 03013398A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- joint
- shell
- prosthesis according
- joint prosthesis
- rod
- Prior art date
Links
- 210000001145 finger joint Anatomy 0.000 title claims 2
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000004873 anchoring Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 238000002513 implantation Methods 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000004417 patella Anatomy 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 210000000811 metacarpophalangeal joint Anatomy 0.000 description 1
- 210000001037 metacarpus Anatomy 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure 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
- A61F2/42—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
-
- 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
- A61F2/4225—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for feet, e.g. toes
-
- 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
- A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
- A61F2002/30364—Rotation about the common longitudinal axis
- A61F2002/30367—Rotation about the common longitudinal axis with additional means for preventing said rotation
-
- 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
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
-
- 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
- A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
- A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
- A61F2002/30392—Rotation
-
- 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
- A61F2002/30601—Special structural features of bone or joint prostheses not otherwise provided for telescopic
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
- A61F2002/3065—Details of the ball-shaped head
- A61F2002/30652—Special cut-outs, e.g. flat or grooved cut-outs
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
- A61F2002/30662—Ball-and-socket joints with rotation-limiting means
-
- 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
- A61F2/30721—Accessories
- A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
- A61F2002/30738—Sleeves
-
- 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
- A61F2002/4243—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for interphalangeal joints, i.e. IP joints
-
- 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
- A61F2002/4251—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for metacarpo-phalangeal joints, i.e. MCP or MP joints, e.g. knuckle joints
-
- 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
- A61F2002/4256—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for carpo-metacarpal joints, i.e. CMC joints
- A61F2002/4258—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for carpo-metacarpal joints, i.e. CMC joints for trapezo-metacarpal joints of thumbs
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
Definitions
- the present invention relates to a joint prosthesis, in particular of a finger, of the type comprising a joint body which comprises on the one hand a shell having an internal cavity and on the other hand a ball joint received in rotation in this cavity, and means for connecting the articulation body to two adjacent bones, said cavity being formed by the assembly of two shell parts adapted to trap the patella.
- US-A-5,147,386 brings into play an additional element for retaining the ball joint, for example produced under the appearance of a retaining bar which passes through the ball joint, or else a retaining cover. of the ball joint placed on the shell at the end of assembly. Although the dislocation phenomenon is then detrimentally detrimentally, at least one degree freedom of articulation is suppressed, the latter therefore being unable to reproduce a natural movement.
- the object of the invention is to provide a dismountable joint prosthesis which, while being easy to assemble, retains the natural degrees of freedom of the biological joint, and which allows a high folding amplitude as well as the use of sleeves. anchor.
- FIG. 1 is a side view of a joint prosthesis according to the invention implanted in the finger of a patient;
- FIG. 2 is an exploded perspective view of the articulation prosthesis of Figure 1 without the anchoring sleeves;
- Figure 3 is a side view in axial section of the same prosthesis;
- Figure 4 is a top view in axial section of the shell portion forming the ring;
- Figure 5 is a top view in axial section of the proximal shell portion;
- Figure 6 is a bottom view of the articulation prosthesis, without the anchoring sleeves.
- Figure 1 shows the implantation of a joint prosthesis 1 between the first phalanx and the second phalanx of the index finger of a hand.
- This articulation prosthesis 1 comprises an articulation body 2 guided essentially by sliding in two anchoring sleeves 3 and 4 fixedly arranged in the bones of each adjacent phalanx. It can be seen in FIG. 2 that the articulation body consists of three metal parts: a shell in two parts, and a spherical ball joint 5 secured to a projecting distal rod 6 and received in rotation in an interior cavity of the shell .
- This shell comprises a shell part forming a ring 7 and a proximal shell part 8 externally integral with a projecting proximal rod 9.
- the two rods 6 and 9 are cylindrical, and have an identical current diameter.
- the rod 6 carries at one of its ends the ball 5, and has a part of rod 10 of larger diameter adjacent to the ball 5.
- a circular shoulder 11 delimits the part 10.
- the shell part 7 has the general shape of a hollow hemisphere, comprising a cylindrical proximal extension 12 with a flat end edge 13a. It further comprises at its distal end a radial flat 13b, provided with a clover-shaped opening allowing a lateral movement of the rod 6 of approximately 2 X 11 ° degrees when the latter is aligned along the general axis XX of the prosthesis, in its metacarpophalangeal version, which is the only one requiring such lateral movement.
- the external surface of the shell part 7 is smooth and devoid of sharp edges so as not to traumatize, once implanted, the ligaments of the natural joint.
- the shell part 7 has a flattened lower face 13c to reduce the size of the articulation body.
- the rod 9 has two transverse projecting lugs 14, diametrically opposite on the rod 9.
- the shell part 7 and 8 respectively comprise internal cavities 15a and 15b which, once assembled, form a spherical cavity 15 conjugate with the ball 5, greater than a half-sphere, adapted to trap the ball. Furthermore, the shell part 7 has a radial notch 16a which cuts the lower face 13c and enters the flat 13b ( Figure 2), while the shell part 8 has a notch 16b provided in its hemispherical cavity 15b. These notches 16a and 16b are adapted to form a single notch 16 once the two shell parts 7 and 8 are assembled.
- the two anchoring sleeves 3 and 4 have a converging outer surface of roughly triangular section intended to improve the anchoring forces of these sleeves in the bones where they are implanted.
- the interior surfaces of these sleeves are cylindrical and smooth to ensure good sliding of the rods 6 and 9 inside said sleeves.
- the distal rod 6 can slide and pivot freely in the distal sheath 3, while the proximal rod 9 can only slide along two longitudinal grooves 17 provided in the inner surface of the proximal sheath 4, and diametrically opposite to cooperate in guiding with the lugs 14 of the proximal rod 9.
- any rotation of the rod 9 in the sheath 4 is limited to a small angular play provided between the lugs 14 and the corresponding grooves 17.
- FIG. 3 is a section in the plane of symmetry of the joint, the two extreme positions can be occupied by the distal rod 6 (in dotted lines).
- the notch 16 formed by the two notches 16a and 16b assembled is adapted to obtain maximum extension and bending positions of the joint, corresponding respectively to the upper and lower positions of the rod 6.
- the upper position is of the order of a few degrees, for example 10 °, above the axis XX, obtained by abutment of the rod part 10 against the circular upper end of the notch 16.
- the low position of the rod 6 forms a obtuse angle with the axis XX, for example 105 °, which is obtained when the part 10 abuts with the circular lower bottom of the notch 16.
- the articulation therefore has a scanning angle of the order of 115 ° .
- the width of the notch is such that the portion 10 of the distal rod has a freedom of lateral movement in a direction normal to the plane of the Figure, in an inclined position on the axis XX, this in the metacarpo version -phalangeal prosthesis.
- Figure 3 also shows the two anchor sleeves 3 and 4, having identical external shapes.
- the end edge 18a of the distal sheath 3 abuts against the shoulder 11 of the rod 6, while that 18b of the proximal sheath 4 abuts both against a flat proximal annular face 19 of the shell part 8 and against the flat end edge 13c.
- the surfaces of parts 13c and 19 are coplanar.
- Figure 4 shows the shell part 7 and shows the bottom of the notch 16a, which has a circular shape to accommodate the rod portion 10 in abutment in the low position.
- Figure 6 shows the prosthesis assembled seen from below and shows that the notches 16a and 16b of the shell parts 7 and 8 form a single notch bottom in which the rod part 10 abuts in the low position.
- the shell part 7, not assembled comprises a cylindrical interior cavity 20a oriented longitudinally along the axis XX.
- An annular shoulder 21 ( Figure 4) delimits the cylindrical interior cavities 20a and spherical 15a, the cylindrical cavity having the largest diameter.
- Figure 5 shows the shell part 8 integral with the proximal rod 9, on which are visible the projecting lugs 14 diametrically opposite.
- the shell part 8 has a cylindrical outer surface oriented longitudinally along the axis X-X, and of a diameter barely greater than that of the cylindrical cavity 20a.
- Figures 4 and 5 further show that the interior cavity 15a has a surface less than a hemisphere, while the interior cavity 15b is hemispherical, while the total surface of the resulting cavity 15 of the shell once the two parts of assembled shell is greater than a half sphere.
- the articulation prosthesis being removable, the assembly of the shell parts and the ball joint is done in the factory.
- the ball 5 is first disposed in the internal cavity 15a of the shell part 8, then the shell parts 7 and 8 are fitted one into the other until a stop position delimited by the contact of the distal face of the shell part 8 against the shoulder 21.
- This assembly is preferably carried out by shrinking: the shell part 8 is cooled while the shell part 7 is heated, just before being nested one inside the other.
- the surfaces 20a and 20b due to their respective expansion and contraction, are then in a state allowing easy interlocking.
- the blocking of said parts is quickly obtained after homogenization of the temperature.
- the joint prosthesis described with reference to the appended Figures is preferably a digital prosthesis which applies to the metacarpophalangeal joint as to the first inter-phalangeal joint.
- the procedure is as follows: first positioning the two sheaths 3 and 4 respectively in medullary cavities previously formed in the distal and proximal bones of the natural joint to replace. Then, insert the rod 9 comprising the lugs 14 up to a stop position in the proximal sheath 4, following the guidance offered by the grooves 17. Finally, fold the articulation body 2 until the rod 6 is in its low position and this rod is inserted into the distal sheath 3. The articulation prosthesis 1 is then unfolded and the operation is completed.
- the articulation body described below has two projecting rods, one of which is integral with a ball joint.
- the invention is not limited to this type of prosthesis.
- prostheses comprising only one rod are known for applications different from those mentioned above.
- the articulation body is formed of a shell, preferably comprising a rough surface, implanted directly into the trapezium, and a projecting distal rod inserted into a sheath disposed in the adjacent metacarpus.
- Such a joint prosthesis can be envisaged on the basis of the characteristics of the present invention. Indeed, the invention refers to a method of imprisonment of a ball joint in a shell, by means of several parts of shells assembled in particular by shrinking.
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (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
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0110514 | 2001-08-06 | ||
FR0110514A FR2828092B1 (fr) | 2001-08-06 | 2001-08-06 | Prothese d'articulation notamment digitale |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003013398A1 true WO2003013398A1 (fr) | 2003-02-20 |
Family
ID=8866326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002815 WO2003013398A1 (fr) | 2001-08-06 | 2002-08-06 | Prothese d'articulation, notamment digitale |
Country Status (2)
Country | Link |
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FR (1) | FR2828092B1 (fr) |
WO (1) | WO2003013398A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10354601B3 (de) * | 2003-11-21 | 2005-06-23 | Chiropro Gmbh | Gelenkprothese für Fingerglieder |
GB2477397A (en) * | 2010-01-28 | 2011-08-03 | Biomet Mfg Corp | Interphalangeal joint implant |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1632200A1 (fr) * | 2004-09-02 | 2006-03-08 | ESKA Implants GmbH & Co. | Prothèse pour articulation carpo-métacarpienne |
FR2912051B1 (fr) * | 2007-02-07 | 2010-03-12 | Jean Pierre Pequignot | Implant trapezo-metacarpien |
GB2506634A (en) * | 2012-10-04 | 2014-04-09 | William Duncan Robertson | A joint consolidator |
US11123196B1 (en) * | 2020-05-07 | 2021-09-21 | Thomas Zink | Stand alone metatarsophalangeal (MTP) joint fusion device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3638243A (en) | 1970-05-04 | 1972-02-01 | Univ Ohio State | Surgically implantable prosthetic joint |
FR2590794A1 (fr) * | 1985-12-02 | 1987-06-05 | Hermann Thierry | Prothese d'articulation, en particulier pour articulation du doigt |
US5147386A (en) | 1988-08-22 | 1992-09-15 | Techmedica, Inc. | Securable pistoning finger prosthesis |
FR2692776A1 (fr) | 1992-06-30 | 1993-12-31 | Impact | Prothèse totale pour articulations des os, notamment de la main et du pied. |
EP0669117A1 (fr) * | 1993-12-17 | 1995-08-30 | Sutter Corporation | Prothèse de pouce et procédé de production |
FR2717071A1 (fr) | 1994-03-11 | 1995-09-15 | Procerati | Prothèse d'articulation. |
DE29514169U1 (de) * | 1995-08-22 | 1995-11-30 | Ohst, Norbert, Ing., 14712 Rathenow | Prothese für den Ersatz eines Gelenks |
DE19512854C1 (de) | 1995-04-06 | 1996-08-01 | Eska Medical Gmbh & Co | Fingergelenk |
-
2001
- 2001-08-06 FR FR0110514A patent/FR2828092B1/fr not_active Expired - Fee Related
-
2002
- 2002-08-06 WO PCT/FR2002/002815 patent/WO2003013398A1/fr not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3638243A (en) | 1970-05-04 | 1972-02-01 | Univ Ohio State | Surgically implantable prosthetic joint |
FR2590794A1 (fr) * | 1985-12-02 | 1987-06-05 | Hermann Thierry | Prothese d'articulation, en particulier pour articulation du doigt |
US5147386A (en) | 1988-08-22 | 1992-09-15 | Techmedica, Inc. | Securable pistoning finger prosthesis |
FR2692776A1 (fr) | 1992-06-30 | 1993-12-31 | Impact | Prothèse totale pour articulations des os, notamment de la main et du pied. |
EP0669117A1 (fr) * | 1993-12-17 | 1995-08-30 | Sutter Corporation | Prothèse de pouce et procédé de production |
FR2717071A1 (fr) | 1994-03-11 | 1995-09-15 | Procerati | Prothèse d'articulation. |
DE19512854C1 (de) | 1995-04-06 | 1996-08-01 | Eska Medical Gmbh & Co | Fingergelenk |
DE29514169U1 (de) * | 1995-08-22 | 1995-11-30 | Ohst, Norbert, Ing., 14712 Rathenow | Prothese für den Ersatz eines Gelenks |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10354601B3 (de) * | 2003-11-21 | 2005-06-23 | Chiropro Gmbh | Gelenkprothese für Fingerglieder |
GB2477397A (en) * | 2010-01-28 | 2011-08-03 | Biomet Mfg Corp | Interphalangeal joint implant |
US8303666B2 (en) | 2010-01-28 | 2012-11-06 | Biomet Manufacturing Corp. | Modular Proximal Interphalangeal Joint |
US9149363B2 (en) | 2010-01-28 | 2015-10-06 | Biomet Manufacturing, Llc | Modular proximal interphalangeal joint |
GB2477397B (en) * | 2010-01-28 | 2016-02-24 | Biomet Mfg Corp | Modular proximal interphalangeal joint |
Also Published As
Publication number | Publication date |
---|---|
FR2828092A1 (fr) | 2003-02-07 |
FR2828092B1 (fr) | 2004-07-09 |
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