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WO1991007149A1 - Articulation artificielle destinee notamment a des articulations digitales - Google Patents

Articulation artificielle destinee notamment a des articulations digitales Download PDF

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Publication number
WO1991007149A1
WO1991007149A1 PCT/SE1990/000734 SE9000734W WO9107149A1 WO 1991007149 A1 WO1991007149 A1 WO 1991007149A1 SE 9000734 W SE9000734 W SE 9000734W WO 9107149 A1 WO9107149 A1 WO 9107149A1
Authority
WO
WIPO (PCT)
Prior art keywords
joined
wire
joint prosthesis
spring
joint
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.)
Ceased
Application number
PCT/SE1990/000734
Other languages
English (en)
Inventor
Bengt Persson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo AB
Original Assignee
Volvo AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volvo AB filed Critical Volvo AB
Publication of WO1991007149A1 publication Critical patent/WO1991007149A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/42—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
    • 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
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • 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
    • A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
    • A61F2002/30566—Helical springs
    • 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
    • A61F2002/30574—Special structural features of bone or joint prostheses not otherwise provided for with an integral complete or partial collar or flange
    • 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
    • A61F2002/30624—Hinged joint, e.g. with transverse axle restricting the movement
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Definitions

  • the present invention relates to a joint prosthesis, comprising a pair of anchoring members surgically im- plantable in the bones adjacent to the joint and an articulating body for joint to the anchoring members.
  • a finger joint prosthesis of this type developed in recent years consists of a pair of titanium screws which can be surgically implanted in the bones adjacent to the finger joint and an intermediate articulating body of silicon rubber, which is injection moulded over the flange por ⁇ tions of the screws.
  • Each titanium screw is inserted into a bore in the longitudinal direction of the respective finger bone and in time is integrated with the bone tissue.
  • the silicon rubber, which makes up the joint itself, serves as a hinge with a slight amount of re ⁇ silience.
  • silicon in the joint itself affects the bone tissue in such a manner as to dissolve the bone adjacent to the joint. This results, inter alia, in a weakening of the anchoring of the titanium screws.
  • Another disadvantage is the very limited resilient force in the silicon joint acting to straighten out a bent finger.
  • the purpose of the present invention is to provide a joint prosthesis of the type described by way of introduction, which, without use of silicon or another elastomer, pro ⁇ vides a simple and reliable joint in which there can be achieved a well-balanced spring-back effect.
  • the articulating body comprises at least one helically wound spring wire having one end joined to one of the anchoring members and the other end joined to the other anchoring member.
  • a helical spring means forms the elastic connection between the bones.
  • the wire material, the wire diameter and the number of coils determine the spring force and the spring path or joint angle, which makes it possible to adjust these parameters in a simple manner so that a joint can be achieved which also increases mobility in persons suffering from rheuma ⁇ tism.
  • two helically wound spring wires are used which are so intertwined that the windings of one wire lie between the windings of the other wire.
  • Each wire has one end joined to one anchoring member and the other end joined to the other anchoring member in such a manner that each anchoring member is joined to both wires at either end of the spring package.
  • This design avoids the overturning moment which is otherwise exerted by a simple helix if the wire ends at opposite ends of the helix are joined to individual anchoring members.
  • the overturning moments cancel each other out so that the spring force will be symmetrical relative to the longitudinal centre line of the joint.
  • Figure 1 shows a schematic X-ray picture of a finger with a joint prosthesis according to the invention implanted in a finger.
  • Figure 2 shows a perspective view of an embodiment in schematic form to illustrate the principle of the in ⁇ vention, and
  • Figures 3 and 4 show a longitudinal section and a cross- -section, respectively, through a preferred embodiment.
  • Figure l designates two bones in a finger.
  • the facing ends of the bones have been cut off to provide room for a joint prosthesis, generally designated 3, consisting of an articulating body 4, a pair of stainless plates 5 and a pair of stainless pins 6a.
  • the pins 6a are inserted into bores in titanium pins 6b, previously surgically im ⁇ planted and held securely by bone growth.
  • the articulating body 4 itself is illustrated in Figure 2.
  • the articulating body comprises a cylindrical carrier 7, on which two metal wires 8 and 9 of spring steel, e.g. stainless 18/8 steel, are helically wound in such a manner that the wires are entwined in each other.
  • the wires are wound so that the ingoing end (10 or 11) and the outgong end (12 or 13) of each wire are oppositely directed.
  • the ends 10-13 of the wires are joined in pairs to a pair of plates 14, 15 to which pins 6 are fixed.
  • Figures 3 and 4 show the preferred embodiment of the joint prosthesis of Figure 1 on a very large scale. Components corresponding to those in Figures 1 and 2 have been given the same reference numerals.
  • the practical embodiment according to Figures 3 and 4 differs from the sketch in Figure 2 showing the principle of the invention only in that the flat anchoring elements in Figure 2 have been given the form of a pair of concentric sleeves 14 and 15. Preferably, they are made of stainless steel and have on their facing surfaces 16, 17 a polyethylene coating so that the friction between the sleeves 14, 15 will be minimal upon relative rotation during the articulating movement.
  • the articulating body 4 is separate from the pins 6b and is only joined thereto by means of a bayonet connection which allows the joint to be easily replaced should this become necessary.
  • each plate 5 is eguipped with a driver pin 18, 19, respectively, with a flange 30.
  • the drivers are each fixed in an individual bore 20, 21 in the cylin- der 14 or 15 and the flanges 30 are fixed in the corre ⁇ sponding cavities 31 in the plates by means of lock screws 32.
  • the outermost cylinder 14 is provided with a peri ⁇ pheral through slot 22, through which the driver 19 for the inner sleeve 15 extends.
  • the peripheral extension of said slot determines the maximum angle of articulation. In the embodiment shown in Figure 3, the slot is so long that it permits articulation between 0° and 90°.
  • the ends 10, 11 and 12, 13, respectively, of the wire springs 8 and 9, respectively, are fixed in the outer sleeve 14 and the inner sleeve 15, respectively, in the same pattern as shown in Figure 2.
  • the respective wire ends 10, 11 extend through a peripheral slot 23 in the inner sleeve ( Figure 4), the peripheral extent of which corresponds to the extent of the slot 22 and out through a bore 24 in the outer sleeve 14, where it is locked by means of a bent portion.
  • Each wire end 12, 13 is fixed in a bore 25 ( Figure 4) in the inner sleeve 15.
  • the spring package formed by the wire springs 8, 9 can either be entirely unloaded in the completely extended position shown in Figure 3, or can have a slight pre- tensioning so that the lateral surface of the driver 19 joined to the inner sleeve 15 is lightly pressed against the upper end edge 26 of the slot 22.
  • Figures 3 and 4 representing the straight ex- tended position of the joint, there is a small play "s" between the wire windings and the outer surface of the cylinder 7 and the inner surface of the inner sleeve 15. This play is required to provide for the expansion of spring 8 and the contraction of spring 9 during articu- lation.
  • a preferred embodiment has been described above, in which the springs 8, 9 are wound about a cylinder 7.
  • This has a single purpose, namely to provide an inner limit for the wire helices to prevent the wire springs from interfering with each other, other dispositions of the wire windings are. however, conceivable so that the cylinder can be eliminated. It is also theoretically possible to achieve a resilient joint with a single helical spring, which, how- ever, does not provide the optimum solution obtained by the above described embodiment.

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)
  • Materials For Medical Uses (AREA)

Abstract

Prothèse d'articulation digitale comprenant une paire de broches (6) au titane, conçue pour être implantée de manière chirurgicale dans les os adjacents à l'articulation, ainsi qu'un corps d'articulation intermédiaire joint auxdites broches, ledit corps contenant un ensemble de ressorts hélicoïdaux (8, 9) sollicitant l'articulation digitale dans la position étendue.
PCT/SE1990/000734 1989-11-15 1990-11-14 Articulation artificielle destinee notamment a des articulations digitales Ceased WO1991007149A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8903838A SE464961B (sv) 1989-11-15 1989-11-15 Ledprotes, i synnerhet foer fingerleder
SE8903838-4 1989-11-15

Publications (1)

Publication Number Publication Date
WO1991007149A1 true WO1991007149A1 (fr) 1991-05-30

Family

ID=20377489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000734 Ceased WO1991007149A1 (fr) 1989-11-15 1990-11-14 Articulation artificielle destinee notamment a des articulations digitales

Country Status (4)

Country Link
EP (1) EP0502039A1 (fr)
JP (1) JPH04503025A (fr)
SE (1) SE464961B (fr)
WO (1) WO1991007149A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717071A1 (fr) * 1994-03-11 1995-09-15 Procerati Prothèse d'articulation.
WO1996025129A1 (fr) * 1995-02-17 1996-08-22 Tecres S.P.A. Prothese pour les articulations metacarpo-phalangiennes et interphalangiennes des mains ou des pieds
WO1997026846A1 (fr) * 1996-01-22 1997-07-31 Handevelop Ab Protheses pour articulations
US6383223B1 (en) 1997-06-18 2002-05-07 BAEHLER ANDRé Endoprosthesis for a joint, especially a finger, toe or wrist joint
EP2289941A2 (fr) 2002-02-25 2011-03-02 Elan Pharmaceuticals Inc. Administration d'agents pour le traitement des inflammations
WO2012009735A1 (fr) * 2010-07-16 2012-01-19 Vaal University Of Technology Prothèse
WO2017037686A1 (fr) * 2015-09-03 2017-03-09 Cmc Sert Ltd. Prothèse pour remplacer une articulation dans une main ou un pied humain

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6093562B2 (ja) * 2012-12-07 2017-03-08 株式会社トランストロン 変位検出装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1350518A (en) * 1919-08-01 1920-08-24 Grant Prisbrey Artificial leg
US3990116A (en) * 1974-10-17 1976-11-09 Fixel Irving E Pretensioned prosthetic device for skeletal joints

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1350518A (en) * 1919-08-01 1920-08-24 Grant Prisbrey Artificial leg
US3990116A (en) * 1974-10-17 1976-11-09 Fixel Irving E Pretensioned prosthetic device for skeletal joints

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717071A1 (fr) * 1994-03-11 1995-09-15 Procerati Prothèse d'articulation.
WO1996025129A1 (fr) * 1995-02-17 1996-08-22 Tecres S.P.A. Prothese pour les articulations metacarpo-phalangiennes et interphalangiennes des mains ou des pieds
US5984971A (en) * 1995-02-17 1999-11-16 Tecres S.P.A. Prosthesis for metacarpal-phalangeal and interphalangeal joints in hands or feet
WO1997026846A1 (fr) * 1996-01-22 1997-07-31 Handevelop Ab Protheses pour articulations
AU703088B2 (en) * 1996-01-22 1999-03-18 Handevelop Ab Prosthetic device for joints
US6342076B1 (en) 1996-01-22 2002-01-29 Handevelop Ab Prosthetic device for joints
US6383223B1 (en) 1997-06-18 2002-05-07 BAEHLER ANDRé Endoprosthesis for a joint, especially a finger, toe or wrist joint
EP2289941A2 (fr) 2002-02-25 2011-03-02 Elan Pharmaceuticals Inc. Administration d'agents pour le traitement des inflammations
EP2336184A2 (fr) 2002-02-25 2011-06-22 Elan Pharmaceuticals Inc. Administration d'agents pour le traitement des inflammations
EP2360185A2 (fr) 2002-02-25 2011-08-24 Elan Pharmaceuticals Inc. Administration d'agents pour le traitement des inflammations
EP3173426A1 (fr) 2002-02-25 2017-05-31 Biogen MA Inc. Administration d'agents pour le traitement des inflammations
EP3674322A1 (fr) 2002-02-25 2020-07-01 Biogen MA Inc. Administration d'agents pour le traitement des inflammations
WO2012009735A1 (fr) * 2010-07-16 2012-01-19 Vaal University Of Technology Prothèse
WO2017037686A1 (fr) * 2015-09-03 2017-03-09 Cmc Sert Ltd. Prothèse pour remplacer une articulation dans une main ou un pied humain

Also Published As

Publication number Publication date
EP0502039A1 (fr) 1992-09-09
SE8903838L (sv) 1991-05-16
SE464961B (sv) 1991-07-08
SE8903838D0 (sv) 1989-11-15
JPH04503025A (ja) 1992-06-04

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