CN116763512A - Knee-ankle linkage artificial limb - Google Patents
Knee-ankle linkage artificial limb Download PDFInfo
- Publication number
- CN116763512A CN116763512A CN202311062363.3A CN202311062363A CN116763512A CN 116763512 A CN116763512 A CN 116763512A CN 202311062363 A CN202311062363 A CN 202311062363A CN 116763512 A CN116763512 A CN 116763512A
- Authority
- CN
- China
- Prior art keywords
- connecting piece
- piston rod
- cylinder body
- thigh
- rod
- 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.)
- Pending
Links
- 210000003414 extremity Anatomy 0.000 claims abstract description 28
- 210000000629 knee joint Anatomy 0.000 claims abstract description 28
- 210000002683 foot Anatomy 0.000 claims abstract description 25
- 210000000689 upper leg Anatomy 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 210000003423 ankle Anatomy 0.000 claims description 2
- 210000003127 knee Anatomy 0.000 claims description 2
- 244000309466 calf Species 0.000 claims 1
- 210000000544 articulatio talocruralis Anatomy 0.000 abstract description 20
- 238000005452 bending Methods 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 description 4
- 241000309551 Arthraxon hispidus Species 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000002266 amputation Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 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
- A61F2/50—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
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/66—Feet; Ankle joints
- A61F2/6607—Ankle 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
- A61F2002/607—Lower legs
-
- 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
- A61F2002/608—Upper legs
-
- 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
- A61F2/66—Feet; Ankle joints
- A61F2002/6614—Feet
Landscapes
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (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)
- Orthopedic Medicine & Surgery (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a knee-ankle linkage artificial limb which comprises a thigh connecting piece, a bracket, a shank connecting piece and a foot plate, wherein the thigh connecting piece is sequentially connected with the bracket, the shank connecting piece and the foot plate, a cylinder body and a first connecting rod are hinged on the thigh connecting piece, the cylinder body is connected with the bracket, a piston rod of the cylinder body is hinged with the first connecting rod and can drive the piston rod to do telescopic motion in the cylinder body through the first connecting rod by rotating the thigh connecting piece relative to the cylinder body, the shank connecting piece is hinged with the foot plate, and the foot plate is connected with the piston rod through a second connecting rod and can tilt up and down by the linkage of the piston rod and the second connecting rod. The invention realizes the synchronous linkage of the flexion and extension movement of the knee joint and the plantar flexion and dorsiflexion movement of the ankle joint; so that the ankle joint can bend along with the bending of the knee joint, the knee joint bends backwards, the foot plate tilts upwards, and the movement of walking, sitting and going upstairs and downstairs of a human body is met.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a knee-ankle linkage artificial limb.
Background
Due to traffic accidents, diseases and the like, the number of people with lower legs amputation is increased gradually, and the compensation of the missing function of the human body can be achieved by wearing the ankle joint artificial limb. The research of ankle joint artificial limb is earlier in foreign starting, the early artificial limb is a passive ankle joint artificial limb, the early passive ankle joint artificial limb adopts a wooden artificial limb, and the elastic performance of the artificial limb is improved by adopting an elastic energy storage device in the later period due to material transformation, and the foot plate is made of energy storage materials such as rubber, carbon fiber and the like in the conventional artificial limb material. Compared with foreign countries, domestic researches on artificial limbs are started later, the domestic researches mainly focus on the realization of the functions of knee joint artificial limbs, and ankle joints are only used as elastic energy storage structures for assisting human walking, so that some key technologies are still to be developed and perfected, and pain points of amputees are solved.
The ankle joint of the existing shank connecting piece is mostly passive, the deformation of the foot plate is utilized to meet the resilience force required by the residual limb, and the ankle joint is relatively dead, stiff and poor in flexibility when moving. For climbing stairs, walking on a slope up and down, the bare joints cannot perform plantarflexion and dorsiflexion according to road surface conditions, and the bare joints basically need the power provided by body swing of the stumps and the crotch of an assembler, so that the bare joints are relatively forceful to act, and are very inconvenient.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects in the prior art and providing a knee-ankle linkage artificial limb which can realize synchronous linkage of flexion and extension movement of knee joints and plantar flexion and dorsiflexion movement of ankle joints, so that the ankle joints can bend along with bending of the knee joints, the knee joints bend backwards, foot plates tilt upwards, and the knee-ankle linkage artificial limb accords with walking, sitting and going upstairs and downstairs of human bodies.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a knee ankle linkage artificial limb, includes thigh connecting piece, support, shank connecting piece and sole, the thigh connecting piece is connected gradually with support, shank connecting piece and sole, articulated on the thigh connecting piece have cylinder body and head rod, cylinder body and leg joint, the piston rod of cylinder body is articulated with head rod to can drive the piston rod through head rod for the rotation of cylinder body through the thigh connecting piece and do telescopic movement in the cylinder body, shank connecting piece and sole are articulated, the sole is connected with the piston rod through the second connecting rod to can carry out the upwarp through the linkage of piston rod and second connecting rod.
As a further improvement of the above technical scheme:
the bottom of the second connecting rod is connected with the rear end of the foot plate.
The top of the second connecting rod is connected with the bottom of the piston rod.
The second connecting rod is curved and is curved from top to bottom from the outer side of the shank connecting piece to the rear side direction of the foot plate.
The support is provided with a cavity with an upward opening, and the cylinder body is placed in the cavity.
The support is provided with a threaded pipe, and the upper end of the shank connecting piece is in threaded connection with the threaded pipe and can adjust the length of connection.
The thigh connecting piece is provided with a tetragonal cone joint connected with the thigh artificial limb.
The cylinder body is a hydraulic cylinder.
Compared with the prior art, the invention has the advantages that:
according to the invention, the knee joint is driven to bend and stretch through the thigh part by connecting the piston rod with the first connecting rod, the first connecting rod drives the piston rod to stretch, and then the piston rod is connected with the piston rod through the second connecting rod, so that the piston rod drives the second connecting rod to drive the foot plate to tilt up and down, and synchronous linkage of the bending and stretching motion of the knee joint and the plantar bending and dorsiflexion motion of the ankle joint is realized; the ankle joint can be bent along with the bending of the knee joint, the knee joint is bent backwards, the foot plate is tilted upwards, and the actions of walking, sitting and going upstairs and downstairs of a human body are met; when the artificial limb plays a supporting role, the gravity center of the body falls on the artificial limb, the artificial limb knee joint bears weight, the cylinder body is locked, and at the moment, the ankle joint is also simultaneously locked due to the fact that the piston rod of the knee joint is connected, so that the artificial limb has the function of simultaneously stabilizing the knee joint and the ankle joint in a supporting stage of a user.
Drawings
Fig. 1 is a schematic perspective view of the knee-ankle linkage prosthesis.
Fig. 2 is a left side view structure schematic diagram of the knee-ankle linkage artificial limb.
Fig. 3 is a right side view cross section structure schematic diagram of the knee-ankle linkage artificial limb.
Legend description:
1. thigh links; 11. a tetragonal cone joint head; 2. a bracket; 21. a threaded tube; 3. a shank link; 4. foot plates; 5. a cylinder; 51. a piston rod; 6. a first connecting rod; 7. and a second connecting rod.
Description of the embodiments
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 3, the knee-ankle linkage prosthesis of the present embodiment includes a thigh connecting member 1, a bracket 2, a shank connecting member 3 and a foot plate 4, wherein the thigh connecting member 1 is sequentially connected with the bracket 2, the shank connecting member 3 and the foot plate 4, a cylinder 5 and a first connecting rod 6 are hinged on the thigh connecting member 1, the cylinder 5 is connected with the bracket 2, a piston rod 51 of the cylinder 5 is hinged with the first connecting rod 6 and can drive the piston rod 51 to make telescopic movement in the cylinder 5 through the first connecting rod 6 by the rotation of the thigh connecting member 1 relative to the cylinder 5, the shank connecting member 3 is hinged with the foot plate 4, and the foot plate 4 is connected with the piston rod 51 through a second connecting rod 7 and can make up-down tilting through the linkage of the piston rod 51 and the second connecting rod 7. The knee joint is driven to bend and stretch through the thigh through the connection of the piston rod 51 and the first connecting rod 6, the first connecting rod 6 drives the piston rod 51 to stretch, and then the piston rod 51 is connected with the piston rod 51 through the second connecting rod 7, so that the piston rod 51 drives the second connecting rod 7 to drive the foot plate 4 to tilt up and down, and synchronous linkage of the knee joint bending and stretching motion and the ankle joint plantar bending and dorsiflexion motion is realized; the ankle joint can be bent along with the bending of the knee joint, the knee joint is bent backwards, and the foot plate 4 is tilted upwards, so that the ankle joint meets the actions of walking, sitting down and going upstairs and downstairs of a human body; when the artificial limb plays a supporting role, the gravity center of the body falls on the artificial limb, the artificial limb knee joint bears weight, the cylinder body 5 is locked, and at the moment, the ankle joint is also locked due to the piston rod 51 connected with the knee joint, so that the artificial limb has the function of simultaneously stabilizing the knee joint and the ankle joint in the supporting stage of a user.
In this embodiment, the bottom end of the second connecting rod 7 is connected to the rear end of the foot board 4. The bottom of the second connecting rod 7 can conveniently drive the foot plate 4 to swing around the articulated shaft of the shank connecting piece 3 and the foot plate 4, the driving force is more effective, and the linkage movement is convenient.
In this embodiment, the top end of the second connecting rod 7 is connected to the bottom end of the piston rod 51. The connection here makes the transmission more efficient.
In this embodiment, the second connecting rod 7 is curved and is curved from the outside of the shank link 3 to the rear side of the foot plate 4 from top to bottom. The overall volume can be further reduced without affecting the visual appearance.
In this embodiment, the bracket 2 is provided with a cavity with an upward opening, and the cylinder 5 is placed in the cavity. Through the setting of cavity, can reduce holistic volume and weight, also can not reduce stability and fastness.
In this embodiment, the support 2 is provided with a threaded tube 21, and the upper end of the shank coupling element 3 is screwed with the threaded tube 21 and can adjust the length of the coupling.
In this embodiment, the thigh connecting part 1 is provided with a tetragonal pyramid joint head 11 connected with a thigh artificial limb. The tetragonal cone joint head 11 is easy to purchase and convenient to assemble.
The cylinder body 5 is a hydraulic cylinder. The hydraulic cylinder has simple structure, reliable operation, no transmission clearance and stable movement.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which would be obvious to those skilled in the art without departing from the spirit of the invention are also considered to be within the scope of the invention.
Claims (8)
1. The utility model provides a knee ankle linkage artificial limb, includes thigh connecting piece (1), support (2), shank connecting piece (3) and sole (4), thigh connecting piece (1) connect gradually with support (2), shank connecting piece (3) and sole (4), a serial communication port, articulated on thigh connecting piece (1) have cylinder body (5) and head rod (6), cylinder body (5) are connected with support (2), piston rod (51) of cylinder body (5) are articulated with head rod (6) and can drive piston rod (51) through rotation of thigh connecting piece (1) for cylinder body (5) through head rod (6) and do telescopic movement in cylinder body (5), shank connecting piece (3) and sole (4) are articulated, sole (4) are connected with piston rod (51) through second connecting rod (7) to can carry out the perk through the linkage of piston rod (51) and second connecting rod (7).
2. Knee joint prosthesis according to claim 1, characterized in that the bottom end of the second connecting rod (7) is connected with the rear end of the foot plate (4).
3. Knee joint prosthesis according to claim 2, characterized in that the top end of the second connecting rod (7) is connected to the bottom end of the piston rod (51).
4. A knee joint prosthesis according to claim 3, wherein the second connecting rod (7) is curved and curves from the outside of the calf connector (3) from top to bottom in the direction of the rear side of the foot plate (4).
5. Knee joint prosthesis according to any one of claims 1 to 4, characterized in that the bracket (2) is provided with an upwardly open cavity, in which the cylinder (5) is placed.
6. Knee joint prosthesis according to any one of claims 1 to 4, characterized in that the bracket (2) is provided with a threaded tube (21), the upper end of the shank coupling element (3) being screwed with the threaded tube (21) and being able to adjust the length of the connection.
7. Knee joint prosthesis according to any one of claims 1 to 4, characterized in that the thigh link (1) is provided with a tetragonal pyramid joint (11) connected with the thigh prosthesis.
8. Knee joint prosthesis according to any one of claims 1 to 4, characterized in that the cylinder block (5) is a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311062363.3A CN116763512A (en) | 2023-08-23 | 2023-08-23 | Knee-ankle linkage artificial limb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311062363.3A CN116763512A (en) | 2023-08-23 | 2023-08-23 | Knee-ankle linkage artificial limb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116763512A true CN116763512A (en) | 2023-09-19 |
Family
ID=87986326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311062363.3A Pending CN116763512A (en) | 2023-08-23 | 2023-08-23 | Knee-ankle linkage artificial limb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116763512A (en) |
-
2023
- 2023-08-23 CN CN202311062363.3A patent/CN116763512A/en active Pending
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