CA2134999C - Prosthetic joint - Google Patents
Prosthetic joint Download PDFInfo
- Publication number
- CA2134999C CA2134999C CA002134999A CA2134999A CA2134999C CA 2134999 C CA2134999 C CA 2134999C CA 002134999 A CA002134999 A CA 002134999A CA 2134999 A CA2134999 A CA 2134999A CA 2134999 C CA2134999 C CA 2134999C
- Authority
- CA
- Canada
- Prior art keywords
- joint
- throttle
- prosthetic
- joint part
- check valves
- 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.)
- Expired - Lifetime
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
- A61F2/68—Operating or control means
- A61F2/74—Operating or control means fluid, i.e. hydraulic or pneumatic
- A61F2/744—Vane- or curved-cylinder type actuators, e.g. actuators using rotary pistons
-
- 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
- A61F2/605—Hip 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
- A61F2002/5003—Prostheses not implantable in the body having damping means, e.g. shock absorbers
-
- 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
- A61F2002/5016—Prostheses not implantable in the body adjustable
- A61F2002/5027—Prostheses not implantable in the body adjustable for adjusting cross-section
-
- 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
- A61F2002/5039—Hinged joint, e.g. with transverse axle restricting the movement allowing only for single 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
- A61F2/50—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
Landscapes
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Prostheses (AREA)
Abstract
The invention relates to a prosthetic joint, especially a knee or hip joint, with an upper joint part (1), a lower joint part (2), a joint axle (3) connecting these two joint parts (1, 2) pivotably with one another and connected rotatably with one joint part (1), and a damping of the joint swing. To achieve in particular a more compact design of the joint, it is proposed according to the invention that the damping be integrated into one (2) of the two joint parts (1, 2) and act directly on joint axle (3) nonrotatably connected with the other joint part (1).
Description
21 3+999 Prosthetic Joint The invention relates to a prosthetic joint, especially a knee or hip joint, with an upper joint part, a lower joint part, a joint axle connecting these two joint parts together in pivotable fashion, and nonrotatably connected with one joint part, and a damping of the joint swing.
Damping a knee joint hydraulically is known. A hydraulic damping cylinder located outside the joint is provided for this purpose, said cylinder being articulated at one end on the lower joint part and acting with its piston rod on a lever connected with the upper joint part.
Summary of the Invention A goal of the invention is to improve known designs.
In accordance with one aspect of the present invention there is provided a prosthetic joint having an upper joint part, a lower joint part, a joint axle joining these two joint parts pivotably with one another and nonrotatably connected with one of said joint parts, and a damper of the joint swing, wherein: a) the damper is integrated into one of the two joint parts and acts directly on the joint axle nonrotatably connected with the other joint part; b) the damper has an enclosed displacement chamber concentrically surrounding the joint axle at least partially or over its circumference, said chamber being divided by the joint axle, made in the form of a rotary piston, into two sectional chambers;
c) sectional chambers of the displacement chamber are connected together by two throttle-check valves connected in parallel and acting in opposite directions; d) both throttle-check valves are controllable from the exterior separately from one another; and e) a force loading the joint causes a predefined closure of one of said throttle-check valves.
Damping a knee joint hydraulically is known. A hydraulic damping cylinder located outside the joint is provided for this purpose, said cylinder being articulated at one end on the lower joint part and acting with its piston rod on a lever connected with the upper joint part.
Summary of the Invention A goal of the invention is to improve known designs.
In accordance with one aspect of the present invention there is provided a prosthetic joint having an upper joint part, a lower joint part, a joint axle joining these two joint parts pivotably with one another and nonrotatably connected with one of said joint parts, and a damper of the joint swing, wherein: a) the damper is integrated into one of the two joint parts and acts directly on the joint axle nonrotatably connected with the other joint part; b) the damper has an enclosed displacement chamber concentrically surrounding the joint axle at least partially or over its circumference, said chamber being divided by the joint axle, made in the form of a rotary piston, into two sectional chambers;
c) sectional chambers of the displacement chamber are connected together by two throttle-check valves connected in parallel and acting in opposite directions; d) both throttle-check valves are controllable from the exterior separately from one another; and e) a force loading the joint causes a predefined closure of one of said throttle-check valves.
The design according to the invention, in its application as a knee joint, in addition to the known braking knee, permits a swing phase control in which the swing resistance can be adjusted separately for flexure and extension.
The throttles can basically be controlled mechanically or by an electrical positioning drive. It is advantageous according to the invention for a throttle to be controlled by an axially displaceable throttle rod whose displacement can be effected for example by a manually adjustable knurled screw or the like.
Particularly in a prosthetic joint designed as a knee joint, it is advantageous for a force loading the joint to cause a predefined closure of the bending throttle.
This can be accomplished in the design in the form of a telescopic, force, or moment control.
Preferably, the rotary piston has a rectangular piston plate abutting the two ends and the cylindrical inside wall of the enclosed displacement chamber by a sealing frame. The latter can preferably be held in place by a retainer screwed to the piston plate. This results in a displacement chamber enclosed on all sides with a single defined leak provided in the area of the rotary piston seal. It is advantageous in this regard for the rotary piston seal sealing the displacement chamber from the exterior to be located outside the rotary piston bearing.
Lubrication of the rotary piston bearing is provided by the pressure prevailing the displacement chamber, in other words by the hydraulic oil which should therefore have superior lubricating properties.
Additional features of the invention will be explained in greater detail in 1.
The throttles can basically be controlled mechanically or by an electrical positioning drive. It is advantageous according to the invention for a throttle to be controlled by an axially displaceable throttle rod whose displacement can be effected for example by a manually adjustable knurled screw or the like.
Particularly in a prosthetic joint designed as a knee joint, it is advantageous for a force loading the joint to cause a predefined closure of the bending throttle.
This can be accomplished in the design in the form of a telescopic, force, or moment control.
Preferably, the rotary piston has a rectangular piston plate abutting the two ends and the cylindrical inside wall of the enclosed displacement chamber by a sealing frame. The latter can preferably be held in place by a retainer screwed to the piston plate. This results in a displacement chamber enclosed on all sides with a single defined leak provided in the area of the rotary piston seal. It is advantageous in this regard for the rotary piston seal sealing the displacement chamber from the exterior to be located outside the rotary piston bearing.
Lubrication of the rotary piston bearing is provided by the pressure prevailing the displacement chamber, in other words by the hydraulic oil which should therefore have superior lubricating properties.
Additional features of the invention will be explained in greater detail in 1.
conjunction with further advantages of the invention with reference to an embodiment.
The drawing shows one embodiment of the invention as an example.
Figure 1 shows a knee joint in a side view;
Figure 2 is the representation in Figure 1 in an end view;
Figure 3 is the representation in Figure 1 in a top view;
Figure 4 is a lengthwise section along line A-A in Figure 2;
Figure 5 is a lengthwise section along line C-C in Figure 2;
and Figure 6 is a cross section along line B-B in Figure 1.
A knee joint is shown as an example of a prosthetic joint, said knee joint consisting of an upper joint part 1 and a lower joint part 2 located slightly eccentrically with respect to the latter. The pivotable connection of the two joint parts l, 2 is provided by a joint axle 3 nonrotatably connected with upper joint part 1. Upper joint part 1 abuts the cylindrical surface 4 of lower joint part 2 with its partially cylindrical lower side. Because of the eccentric arrangement of the two parts with respect to one another, during a joint swing upper joint part 1 rolls with its lower side on cylindrical surface 4, which therefore serves as a joint buffer over its entire surface. A separate joint stop is therefore unnecessary.
To damp the joint swing, in the embodiment shown hydraulic damping is provided that is directly integrated into lower _. 21 34999 joint part 2, said damping acting directly on joint axle 3, Hydraulic damping comprises an enclosed displacement chamber surrounding joint axle 3 over its circumference partially concentrically, said chamber being divided by joint axle 3 in the form of a rotary piston into two sectional chambers 5a, 5b. For this purpose, joint axle~3 is provided with a rectangular piston plate 6 extending in the axial and radial directions, said plate abutting in sealing fashion the two end walls of displacement chamber 5 with its two radially extending end edges and abutting the cylindrical inside wall of displacement chamber 5 with its axially extending lengthwise edge. Preferably this seal is provided by a sealing frame 7, mounted on piston plate 6 by means of a retainer screwed to piston plate 6 and not shown in the drawing.
Displacement chamber 5 is sealed from the exterior by a rotary piston seal 8 located outside rotary piston bearing 9. Lubrication is provided by the pressure prevailing in the displacement chamber 5, with displacement chamber 5 preferablx being filled with a hydraulic oil with superior lubricating properties.
Sectional chambers 5a, 5b are connected together by two throttle-check valves 10 connected in parallel and acting in opposite directions. These valves are located in two bores 11 provided side by side in lower joint part 2, said bores running perpendicularly to joint axle 3 and being sealed from the exterior by sealing plugs 12.
A throttle rod 13 is provided to control the throttle of each throttle-check valve 10 in the embodiment shown, said rod being displaceable lengthwise by an adjusting device not shown in greater detail, for, example a manually operated knurled screw, and projecting with its upper free end shown r _. 213~99~
in Figure 5 to a greater or lesser depth into the flow cross section of the flow connection between the two sectional chambers 5a and 5b. The possibility of separate adjustment of the two throttle rods 13 allows the swing resistance to be adjusted separately for flexure and extension. It is also advantageous in this regard for loading of the knee to result in closure of the bending throttle. This is ensured by a telescopic, force, or moment control not shown in the drawing.
The drawing shows one embodiment of the invention as an example.
Figure 1 shows a knee joint in a side view;
Figure 2 is the representation in Figure 1 in an end view;
Figure 3 is the representation in Figure 1 in a top view;
Figure 4 is a lengthwise section along line A-A in Figure 2;
Figure 5 is a lengthwise section along line C-C in Figure 2;
and Figure 6 is a cross section along line B-B in Figure 1.
A knee joint is shown as an example of a prosthetic joint, said knee joint consisting of an upper joint part 1 and a lower joint part 2 located slightly eccentrically with respect to the latter. The pivotable connection of the two joint parts l, 2 is provided by a joint axle 3 nonrotatably connected with upper joint part 1. Upper joint part 1 abuts the cylindrical surface 4 of lower joint part 2 with its partially cylindrical lower side. Because of the eccentric arrangement of the two parts with respect to one another, during a joint swing upper joint part 1 rolls with its lower side on cylindrical surface 4, which therefore serves as a joint buffer over its entire surface. A separate joint stop is therefore unnecessary.
To damp the joint swing, in the embodiment shown hydraulic damping is provided that is directly integrated into lower _. 21 34999 joint part 2, said damping acting directly on joint axle 3, Hydraulic damping comprises an enclosed displacement chamber surrounding joint axle 3 over its circumference partially concentrically, said chamber being divided by joint axle 3 in the form of a rotary piston into two sectional chambers 5a, 5b. For this purpose, joint axle~3 is provided with a rectangular piston plate 6 extending in the axial and radial directions, said plate abutting in sealing fashion the two end walls of displacement chamber 5 with its two radially extending end edges and abutting the cylindrical inside wall of displacement chamber 5 with its axially extending lengthwise edge. Preferably this seal is provided by a sealing frame 7, mounted on piston plate 6 by means of a retainer screwed to piston plate 6 and not shown in the drawing.
Displacement chamber 5 is sealed from the exterior by a rotary piston seal 8 located outside rotary piston bearing 9. Lubrication is provided by the pressure prevailing in the displacement chamber 5, with displacement chamber 5 preferablx being filled with a hydraulic oil with superior lubricating properties.
Sectional chambers 5a, 5b are connected together by two throttle-check valves 10 connected in parallel and acting in opposite directions. These valves are located in two bores 11 provided side by side in lower joint part 2, said bores running perpendicularly to joint axle 3 and being sealed from the exterior by sealing plugs 12.
A throttle rod 13 is provided to control the throttle of each throttle-check valve 10 in the embodiment shown, said rod being displaceable lengthwise by an adjusting device not shown in greater detail, for, example a manually operated knurled screw, and projecting with its upper free end shown r _. 213~99~
in Figure 5 to a greater or lesser depth into the flow cross section of the flow connection between the two sectional chambers 5a and 5b. The possibility of separate adjustment of the two throttle rods 13 allows the swing resistance to be adjusted separately for flexure and extension. It is also advantageous in this regard for loading of the knee to result in closure of the bending throttle. This is ensured by a telescopic, force, or moment control not shown in the drawing.
Claims (9)
1. A prosthetic joint having an upper joint part, a lower joint part, a joint axle joining these two joint parts pivotably with one another and nonrotatably connected with one of said joint parts, and a damper of the joint swing, wherein:
a) the damper is integrated into one of the two joint parts and acts directly on the joint axle nonrotatably connected with the other joint part;
b) the damper has an enclosed displacement chamber concentrically surrounding the joint axle at least partially or over its circumference, said chamber being divided by the joint axle, made in the form of a rotary piston, into two sectional chambers;
c) sectional chambers of the displacement chamber are connected together by two throttle-check valves connected in parallel and acting in opposite directions;
d) both throttle-check valves are controllable from the exterior separately from one another;
and e) a force loading the joint causes a predefined closure of one of said throttle-check valves.
a) the damper is integrated into one of the two joint parts and acts directly on the joint axle nonrotatably connected with the other joint part;
b) the damper has an enclosed displacement chamber concentrically surrounding the joint axle at least partially or over its circumference, said chamber being divided by the joint axle, made in the form of a rotary piston, into two sectional chambers;
c) sectional chambers of the displacement chamber are connected together by two throttle-check valves connected in parallel and acting in opposite directions;
d) both throttle-check valves are controllable from the exterior separately from one another;
and e) a force loading the joint causes a predefined closure of one of said throttle-check valves.
2. Prosthetic joint according to Claim 1 wherein control of the throttle-check valves is provided by a throttle rod, located displaceably lengthwise in said lower joint part.
3. Prosthetic joint according to Claim 2 wherein a manually adjustable knurled screw or the like is provided for the displacement of the throttle rod.
4. Prosthetic joint according to Claim 1, Claim 2 or Claim 3 wherein said rotary piston comprises a rectangular piston plate which abuts the two ends and the cylindrical inside wall of displacement chamber by a sealing frame.
5. Prosthetic joint according to Claim 4 wherein the sealing frame is held in place by a retainer screwed to piston plate.
6. Prosthetic joint according to Claim 1, Claim 2, Claim 3, Claim 4 or Claim 5 wherein a rotary piston seal sealing the displacement chamber from the exterior is located outside of a rotary piston bearing.
7. Prosthetic joint according to Claim 1, Claim 2, Claim 3, Claim 4, Claim 5 or Claim 6 wherein two bores are provided for mounting the two throttle-check valves in the joint part receiving displacement chamber, said bores being sealed from the exterior by a sealing plug.
8. Prosthetic joint according to Claim 1, Claim 2, Claim 3, Claim 4, Claim 5, Claim 6 or Claim 7 wherein the damper medium is a hydraulic oil with high lubricating properties.
9. Prosthetic joint according to Claim 1, Claim 2, Claim 3, Claim 4, Claim 5, Claim 6, Claim 7 or Claim 8 wherein upper joint part abuts with its partially cylindrical underside, the cylindrical surface of lower joint part provided eccentrically with respect to the upper joint part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4338946A DE4338946C1 (en) | 1993-11-15 | 1993-11-15 | Prosthetic joint |
| DEP4338946.5 | 1993-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2134999A1 CA2134999A1 (en) | 1995-05-16 |
| CA2134999C true CA2134999C (en) | 2001-01-09 |
Family
ID=6502621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002134999A Expired - Lifetime CA2134999C (en) | 1993-11-15 | 1994-11-03 | Prosthetic joint |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0654254B1 (en) |
| JP (2) | JPH07250852A (en) |
| CN (1) | CN1095642C (en) |
| BR (1) | BR9404455A (en) |
| CA (1) | CA2134999C (en) |
| DE (2) | DE4338946C1 (en) |
| ES (1) | ES2138023T3 (en) |
| RU (1) | RU2112465C1 (en) |
| TR (1) | TR27842A (en) |
| ZA (1) | ZA949064B (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19506426C1 (en) * | 1995-02-24 | 1996-11-28 | Bock Orthopaed Ind | Brake knee joint |
| RU2266722C2 (en) | 2000-01-20 | 2005-12-27 | Массачуссеттс Инститьют Оф Текнолоджи | Electronically controlled knee joint prosthesis, prosthesis unit and method for controlling electronic joint prosthesis rotation |
| US7736394B2 (en) | 2002-08-22 | 2010-06-15 | Victhom Human Bionics Inc. | Actuated prosthesis for amputees |
| EP1531766B1 (en) | 2002-08-22 | 2012-08-01 | Victhom Human Bionics Inc. | Actuated leg prosthesis for above-knee amputees |
| GB2399503B (en) | 2003-03-20 | 2006-03-29 | Blatchford & Sons Ltd | Prosthetic knee joint mechanism |
| DE10351916A1 (en) * | 2003-11-07 | 2005-06-09 | Otto Bock Austria Ges.M.B.H. | Artificial knee joint |
| US7815689B2 (en) | 2003-11-18 | 2010-10-19 | Victhom Human Bionics Inc. | Instrumented prosthetic foot |
| US20050107889A1 (en) | 2003-11-18 | 2005-05-19 | Stephane Bedard | Instrumented prosthetic foot |
| US7896927B2 (en) | 2004-02-12 | 2011-03-01 | össur hf. | Systems and methods for actuating a prosthetic ankle based on a relaxed position |
| DE202004008014U1 (en) * | 2004-05-18 | 2004-09-09 | Teko Automation, Mensch Und Technik Gmbh | Swing phase control device |
| EP1848380B1 (en) | 2004-12-22 | 2015-04-15 | Össur hf | Systems and methods for processing limb motion |
| US8801802B2 (en) | 2005-02-16 | 2014-08-12 | össur hf | System and method for data communication with a mechatronic device |
| SE528516C2 (en) | 2005-04-19 | 2006-12-05 | Lisa Gramnaes | Combined active and passive leg prosthesis system and a method for performing a movement cycle with such a system |
| DE102005029160A1 (en) * | 2005-06-23 | 2006-12-28 | Dr.Ing.H.C. F. Porsche Ag | Hydraulic knee joint prosthesis |
| EP1942843B1 (en) | 2005-09-01 | 2017-03-01 | Össur hf | System and method for determining terrain transitions |
| DE102006009510A1 (en) | 2006-02-27 | 2007-09-06 | Otto Bock Healthcare Ip Gmbh & Co. Kg | hip prosthesis |
| DE102007015560A1 (en) | 2007-03-29 | 2008-10-09 | Otto Bock Healthcare Ip Gmbh & Co. Kg | Prosthesis or orthotic joint |
| DE102007032090B4 (en) * | 2007-07-09 | 2016-08-11 | Otto Bock Healthcare Gmbh | Orthopedic fluid damper |
| WO2009120637A1 (en) | 2008-03-24 | 2009-10-01 | Ossur Hf | Transfemoral prosthetic systems and methods for operating the same |
| WO2012095115A1 (en) * | 2011-01-11 | 2012-07-19 | Falz & Kannenberg Gmbh & Co.Kg | Artificial ankle, artificial foot and artificial leg |
| WO2014133975A1 (en) | 2013-02-26 | 2014-09-04 | össur hf | Prosthetic foot with enhanced stability and elastic energy return |
| DE102017103809A1 (en) * | 2017-02-24 | 2018-08-30 | Inventus Engineering Gmbh | Prosthetic device with a rotary damper |
| CN108542560B (en) * | 2018-04-18 | 2020-05-19 | 北京工道风行智能技术有限公司 | Damping structure applied to mechanical joint and mechanical knee joint |
| CN108890690B (en) * | 2018-08-29 | 2021-05-28 | 太原科技大学 | Pneumatic muscle bionic joint based on magnetorheological fluid |
| DE102018131698A1 (en) | 2018-12-11 | 2020-06-18 | Ottobock Se & Co. Kgaa | Damper system |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB762695A (en) * | 1954-04-01 | 1956-12-05 | Vokes Ernst Scient Surgical Ap | Improvements in artificial legs |
| DE1766309A1 (en) * | 1968-05-02 | 1971-07-01 | Inst Technologie Der Gesundhei | Brake knee joint for thigh prostheses, especially for prostheses made of thin-walled materials |
| AT308281B (en) * | 1970-12-03 | 1973-06-25 | Orthopaedietech Forsch | Ankle joint |
| JPS5128879Y2 (en) * | 1971-12-06 | 1976-07-21 | ||
| DE3028608A1 (en) * | 1980-07-28 | 1982-02-11 | Bernd Ing. Krieg (grad.), 2000 Hamburg | Hydraulically controlled artificial leg - has ram behind single axis knee joint with annular chamber containing valves |
| JPS6026536B2 (en) * | 1980-11-17 | 1985-06-24 | 労働福祉事業団 | prosthetic ankle device |
| DE3222885C2 (en) * | 1982-06-18 | 1986-04-30 | Otto Bock Orthopädische Industrie Besitz- und Verwaltungs-Kommanditgesellschaft, 3408 Duderstadt | Hydraulic damper |
| JPS59183747A (en) * | 1983-04-04 | 1984-10-18 | 工業技術院長 | Foot neck operating mechanism in power artificial leg |
| JP2501862B2 (en) * | 1988-03-25 | 1996-05-29 | 社会福祉法人兵庫県社会福祉事業団 | Thigh prosthesis and stance phase swing leg phase discrimination device for thigh prosthesis |
| US5383939A (en) * | 1991-12-05 | 1995-01-24 | James; Kelvin B. | System for controlling artificial knee joint action in an above knee prosthesis |
| JP2849882B2 (en) * | 1992-02-24 | 1999-01-27 | 株式会社ナブコ | Prosthetic cylinder |
| DE4233247A1 (en) * | 1992-10-02 | 1994-04-07 | Biedermann Motech Gmbh | Swing phase controller |
-
1993
- 1993-11-15 DE DE4338946A patent/DE4338946C1/en not_active Expired - Fee Related
-
1994
- 1994-09-29 ES ES94115332T patent/ES2138023T3/en not_active Expired - Lifetime
- 1994-09-29 EP EP94115332A patent/EP0654254B1/en not_active Expired - Lifetime
- 1994-09-29 DE DE59408726T patent/DE59408726D1/en not_active Expired - Lifetime
- 1994-10-25 JP JP6260557A patent/JPH07250852A/en active Pending
- 1994-10-27 RU RU94039550A patent/RU2112465C1/en active
- 1994-11-03 CA CA002134999A patent/CA2134999C/en not_active Expired - Lifetime
- 1994-11-14 BR BR9404455A patent/BR9404455A/en not_active IP Right Cessation
- 1994-11-15 CN CN94118709A patent/CN1095642C/en not_active Expired - Lifetime
- 1994-11-15 ZA ZA949064A patent/ZA949064B/en unknown
- 1994-11-15 TR TR01177/94A patent/TR27842A/en unknown
-
2004
- 2004-08-19 JP JP2004239487A patent/JP2004337636A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ZA949064B (en) | 1995-07-20 |
| TR27842A (en) | 1995-08-31 |
| EP0654254B1 (en) | 1999-09-08 |
| BR9404455A (en) | 1995-06-20 |
| DE59408726D1 (en) | 1999-10-14 |
| JP2004337636A (en) | 2004-12-02 |
| CA2134999A1 (en) | 1995-05-16 |
| DE4338946C1 (en) | 1995-05-24 |
| RU2112465C1 (en) | 1998-06-10 |
| RU94039550A (en) | 1996-08-20 |
| CN1095642C (en) | 2002-12-11 |
| CN1106648A (en) | 1995-08-16 |
| JPH07250852A (en) | 1995-10-03 |
| ES2138023T3 (en) | 2000-01-01 |
| EP0654254A1 (en) | 1995-05-24 |
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| MKEX | Expiry |
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