WO2001043668A1 - Kniegelenk für eine beinprothese - Google Patents
Kniegelenk für eine beinprothese Download PDFInfo
- Publication number
- WO2001043668A1 WO2001043668A1 PCT/EP2000/011442 EP0011442W WO0143668A1 WO 2001043668 A1 WO2001043668 A1 WO 2001043668A1 EP 0011442 W EP0011442 W EP 0011442W WO 0143668 A1 WO0143668 A1 WO 0143668A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axis
- knee
- distance
- facing away
- pivot axis
- Prior art date
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
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/64—Knee 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2/74—Operating or control means fluid, i.e. hydraulic or pneumatic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/64—Knee joints
- A61F2/642—Polycentric joints, without longitudinal rotation
- A61F2/644—Polycentric joints, without longitudinal rotation of the single-bar or multi-bar linkage type
-
- 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
- A61F2002/30518—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements with possibility of relative movement between the prosthetic parts
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5038—Hinged joint, e.g. with transverse axle restricting the movement
- A61F2002/5043—Hinged joint, e.g. with transverse axle restricting the movement with rotation-limiting stops, e.g. projections or recesses
-
- 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
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5072—Prostheses not implantable in the body having spring elements
- A61F2002/5073—Helical springs, e.g. having at least one helical spring
- A61F2002/5075—Multiple spring systems including two or more 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
- A61F2/50—Prostheses not implantable in the body
- A61F2/68—Operating or control means
- A61F2002/6818—Operating or control means for braking
-
- 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
Definitions
- the invention relates to a knee joint for a prosthetic leg according to the preamble of patent claim 1.
- Such a knee joint is known from a brochure from the company "Otto Bock Orthopedic Industry, Modular Brake Knee Joint, 1997". This known device has a forerunner which effects the extension of the joint and which is hooked onto the pivot axis.
- Such a knee joint has the disadvantage that it is not suitable for high active patients and that the advancer loses its advancement effect when a certain angular position is exceeded and instead accelerates the kinking of the knee joint.
- the object of the invention is to provide an improved knee joint.
- Figure 1 is a side view, partly in section Dar ⁇ position along the line AA in Figure 5, a first embodiment in the basic position 0 ° of the knee joint.
- Fig. 3 shows a corresponding representation in a neutral Stel ⁇ lung 75 °
- FIG. 4 shows a side view of the illustration shown in FIG. 1 on a reduced scale
- FIG. 6 shows one of the rare representations of a second embodiment shown in FIG. 4;
- FIG. 8 shows a detail of the device shown in FIG. 7 along the section line A-A in the basic position 0 °;
- Fig. 9 shows the corresponding representation in the flexion position 30 °.
- the knee joint has an upper part 1 which can be connected to a thigh part and a lower part 2 which can be connected to a lower leg part.
- Upper part 1 and lower part 2 are pivotally connected to one another via a knee axis 3.
- the upper part 1 comprises an axle clamp 4 designed as a brake body and a pressure body 6 pivotally connected thereto via a pivot axis 5.
- the lower part 2 as can best be seen from FIG. 5, has two lateral legs 7, 8, which are on the pressure body 6 facing away from the underside are connected to a Ver ⁇ connecting element 9 and the upper end facing away from the connecting element ent 9 form the bearing for the knee axis 3.
- the pressure element 6 has a connecting element 10 on its upper side facing away from the connecting element 9 Connect to a thigh part and on its lower end facing away from it two lateral legs 11, 12, via which the pressure body 6 is connected to the pivot axis 5.
- the Achsschelle 4 is slotted on one side with a slot 31 and has a the lower part 2 facing the first part 13 and a the lower ⁇ part facing away through the slot 31 of which separate two ⁇ th part 15, the two parts 13 and 15 being integrally connected to one another on the side facing away from the slot.
- a brake bushing 32 surrounding the wave-shaped knee axis 3 is also slotted. The position of the knee axis 3 is selected so that it lies at a lateral distance from a vertical connecting line 25 between the two connecting elements 9, 10.
- the pivot axis 5 is arranged in the first part 13 of the axle clamp 4.
- the free end of the second part 15 is thus in a position which, seen laterally, lies between the knee axis 3 and the pivot axis 5 and above it.
- the axle clamp 4 On the side of the connecting line 25 facing away from the pivot axis 5, the axle clamp 4 has a cam curve 17 which has a first section 18 which, as the distance from the pivot axis 5 increases, also increases its distance from the center of the knee axis 3. This is followed by a second section 19 which extends in a circle around the knee axis 3.
- the pressure body 6 is pivotally connected at one end to the two side legs 11, 12 via the pivot axis 5 with the axle clamp 4. It has a pressure wedge 20 on the side opposite the free end 16, which rests on the free end 16 with its surface opposite the free end 16.
- the pressure wedge 20 and, in particular, the pressure surface cooperating with the free end 16 lie, seen in the lateral direction, between the connection line 25 mentioned and the pivot axis 5.
- a prestressing screw 21 is provided on the side of the pressure wedge 20 opposite the free end, with which a fine adjustment of the position of the pressure wedge 20 is possible. Furthermore, an adjusting spring 22 is provided on the position opposite the pressure wedge 20 in the axle clamp 4, which rests with its spring-preloaded end on the free end 16 in a direction towards the pressure wedge 20 and thus forms an adjustable counterforce against the pressure wedge 20, so that without load and thus no braking action a free Be ⁇ movement can take place around the knee axis.
- the friction between the surface of the axle clamp 4 thus changes as a function of the force exerted on the free end of the second part 15 via the pressure element 6 and in particular via the pressure wedge 20.
- the extent of braking is due to the setting spring 22 can be predetermined.
- Bearings 23 are provided in each of the two lateral legs 7, 8, in which bearings a shaft 24 extending parallel to the knee axis 3 is supported.
- the lateral bearings are designed such that they extend with their lower end facing away from the upper part 1 in a position relative to the connecting line 25 on the side of the pivot axis 5 and with their upper end on the opposite side approximately below the knee axis 3.
- the shaft 24 is so through the springs 23 provided in the bearings to the upper end hm biased that the shaft 24 presses against the cam curve 17.
- the first section 18 of the cam curve 17 is chosen so large that the distance of the points of the curve from the axis of rotation 3 in a swiveling range of the pressure body 6 from 0 ° to approximately 75 ° the connecting line 25 increases.
- the bending position of approximately 30 ° shown in FIG. 2 thus counteracts a considerable resistance through the shaft 24.
- the second section 19 then follows, in which the cam curve runs in a circle around the knee axis 3. In this area, the shaft 24 has a neutral effect.
- FIGS. 6 to 9 differs from the first embodiment in that a pneumatic swing phase control 26 is provided as the advancer instead of the spring-loaded shaft 24 interacting with the cam curve 17.
- a pneumatic swing phase control 26 is provided as the advancer instead of the spring-loaded shaft 24 interacting with the cam curve 17.
- This comprises a piston-cylinder device with a cylinder 27 and a piston rod 28.
- the free end of the cylinder 27 is pivotally attached to a pivot axis 29 which is held close to the connecting element 9 on the connecting line 25 by the side legs 7, 8.
- the free end of the piston rod 28 is pivotally connected to a pivot axis 30 with an extension 31 ′ formed in one piece with the axle clamp 4 with the axle clamp 4.
- the position of the pivot axis 30 is selected so that it lies on the side of the knee axis 3 facing away from the pivot axis 5 and at a distance therefrom.
- the two pivot axes 5 and 30 are preferably approximately mirror-symmetrical to one parallel to the Connecting line 25 aligned, through the knee axis
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00979593A EP1152719A1 (de) | 1999-12-14 | 2000-11-17 | Kniegelenk für eine beinprothese |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19960232.8 | 1999-12-14 | ||
DE19960232A DE19960232A1 (de) | 1999-12-14 | 1999-12-14 | Kniegelenk für eine Beinprothese |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001043668A1 true WO2001043668A1 (de) | 2001-06-21 |
Family
ID=7932601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/011442 WO2001043668A1 (de) | 1999-12-14 | 2000-11-17 | Kniegelenk für eine beinprothese |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1152719A1 (de) |
DE (1) | DE19960232A1 (de) |
WO (1) | WO2001043668A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10351916A1 (de) * | 2003-11-07 | 2005-06-09 | Otto Bock Austria Ges.M.B.H. | Prothesenkniegelenk |
US7101487B2 (en) | 2003-05-02 | 2006-09-05 | Ossur Engineering, Inc. | Magnetorheological fluid compositions and prosthetic knees utilizing same |
US7195647B2 (en) * | 2003-12-29 | 2007-03-27 | Chien-Liang Chen | Artificial knee joint |
WO2007039495A1 (fr) * | 2005-09-30 | 2007-04-12 | Corima | Articulation a verrouillage par deformation elastique et prothese de genou en faisant application |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1221778A (en) * | 1967-04-05 | 1971-02-10 | Blatchford & Sons Ltd | Improved method of making an artificial leg |
US4206519A (en) * | 1978-08-08 | 1980-06-10 | Chas. A. Blatchford & Sons Limited | Stabilized artificial knee mechanism |
DE29521138U1 (de) * | 1995-03-31 | 1996-08-29 | Bock Orthopaed Ind | Prothesenbremsgelenk |
DE29521139U1 (de) * | 1995-02-24 | 1996-08-29 | Bock Orthopaed Ind | Bremskniegelenk |
US5899943A (en) * | 1997-08-12 | 1999-05-04 | Nabco Limited | Artificial limb including knee joint |
EP0947182A2 (de) * | 1998-04-03 | 1999-10-06 | Nabco Limited | Unterschenkelprothese mit Mechanismus, der die Extension unterstützt |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE316658C (de) * | ||||
US2568053A (en) * | 1948-10-07 | 1951-09-18 | John G Catranis | Knee lock mechanism for artificial legs |
GB1534181A (en) * | 1976-09-13 | 1978-11-29 | Blatchford & Sons Ltd C | Artificial leg with knee joint |
DE19506426C1 (de) * | 1995-02-24 | 1996-11-28 | Bock Orthopaed Ind | Bremskniegelenk |
DE19511890C1 (de) * | 1995-03-31 | 1996-11-07 | Bock Orthopaed Ind | Prothesenbremsgelenk |
-
1999
- 1999-12-14 DE DE19960232A patent/DE19960232A1/de not_active Ceased
-
2000
- 2000-11-17 WO PCT/EP2000/011442 patent/WO2001043668A1/de not_active Application Discontinuation
- 2000-11-17 EP EP00979593A patent/EP1152719A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1221778A (en) * | 1967-04-05 | 1971-02-10 | Blatchford & Sons Ltd | Improved method of making an artificial leg |
US4206519A (en) * | 1978-08-08 | 1980-06-10 | Chas. A. Blatchford & Sons Limited | Stabilized artificial knee mechanism |
DE29521139U1 (de) * | 1995-02-24 | 1996-08-29 | Bock Orthopaed Ind | Bremskniegelenk |
DE29521138U1 (de) * | 1995-03-31 | 1996-08-29 | Bock Orthopaed Ind | Prothesenbremsgelenk |
US5899943A (en) * | 1997-08-12 | 1999-05-04 | Nabco Limited | Artificial limb including knee joint |
EP0947182A2 (de) * | 1998-04-03 | 1999-10-06 | Nabco Limited | Unterschenkelprothese mit Mechanismus, der die Extension unterstützt |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7101487B2 (en) | 2003-05-02 | 2006-09-05 | Ossur Engineering, Inc. | Magnetorheological fluid compositions and prosthetic knees utilizing same |
US7335233B2 (en) | 2003-05-02 | 2008-02-26 | Ossur Hf | Magnetorheological fluid compositions and prosthetic knees utilizing same |
DE10351916A1 (de) * | 2003-11-07 | 2005-06-09 | Otto Bock Austria Ges.M.B.H. | Prothesenkniegelenk |
US7195647B2 (en) * | 2003-12-29 | 2007-03-27 | Chien-Liang Chen | Artificial knee joint |
WO2007039495A1 (fr) * | 2005-09-30 | 2007-04-12 | Corima | Articulation a verrouillage par deformation elastique et prothese de genou en faisant application |
Also Published As
Publication number | Publication date |
---|---|
DE19960232A1 (de) | 2001-07-05 |
EP1152719A1 (de) | 2001-11-14 |
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