CN109106477A - Therapeutic device for tendon bone - Google Patents
Therapeutic device for tendon bone Download PDFInfo
- Publication number
- CN109106477A CN109106477A CN201811078919.7A CN201811078919A CN109106477A CN 109106477 A CN109106477 A CN 109106477A CN 201811078919 A CN201811078919 A CN 201811078919A CN 109106477 A CN109106477 A CN 109106477A
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- component
- limiting
- magnet
- treatment device
- tendon
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 20
- 210000002435 tendon Anatomy 0.000 title claims abstract description 17
- 230000001225 therapeutic effect Effects 0.000 title abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 210000002303 tibia Anatomy 0.000 claims abstract description 13
- 210000000689 upper leg Anatomy 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 8
- 210000002414 leg Anatomy 0.000 claims description 7
- 230000002040 relaxant effect Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 210000000629 knee joint Anatomy 0.000 description 7
- 210000003127 knee Anatomy 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000003592 biomimetic effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003407 lower extremity of femur Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/3836—Special connection between upper and lower leg, e.g. constrained
- A61F2/3854—Special connection between upper and lower leg, e.g. constrained with ball and socket joint
-
- 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
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (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)
- Orthopedics, Nursing, And Contraception (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of therapeutic devices for tendon bone, comprising: the first component is used in conjunction with femur, and the lower surface of the first component is formed with symmetrically arranged two lower protrusions；Second component is used in conjunction with shin bone, and the upper surface of the second component is formed with symmetrically arranged two lower concave parts, and two lower protrusions are corresponded respectively to two lower concave parts and are in contact with certain throw-on pressure；Pressure mitigates mechanism, is used to reduce the throw-on pressure between the lower protrusion and the lower concave part.To be formed between the upper end of limiting component and limit socket by pre-tightening component and limiting component against and then reducing the throw-on pressure between lower protrusion and lower concave part, and then reduce and be formed by friction in sliding between the two.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a treatment device which can be implanted into a human body and is used for tendon bones.
Background
Treatment devices for the bones of the tendon can be divided into two categories, one being: means for assisting joint movement, for example, means provided outside a knee joint of a leg part for supporting the knee joint and assisting the knee joint movement; the other is that: devices for replacing joints, also known as implant devices (or prosthetic devices), such as knee prosthetic devices.
A second type of prior art treatment device for the tendon bone generally comprises a first component for combining with the femur and a second component for combining with the tibia, wherein the upper surface of the second component forms symmetrically arranged lower concave parts, the lower surface of the second component forms symmetrically arranged lower convex parts which are used for abutting against the lower concave parts, and the bionic motion of the real knee joint is realized through the relative sliding of the two parts.
It will be readily appreciated that the sliding of the lower male and female parts relative to each other, which is subjected to the majority of the body weight of the human body, entails friction which simultaneously causes wear of the lower surface of the first part and the upper surface of the second part, which is a major cause of life.
Disclosure of Invention
In view of the above technical problems in the prior art, embodiments of the present invention provide a treatment device for the tendon bone.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a treatment device for the bones of the tendon, comprising:
the first component is used for being combined with a femur, and two lower convex parts which are symmetrically arranged are formed on the lower surface of the first component;
the upper surface of the second component is provided with two symmetrically arranged lower concave parts which are respectively contacted with a certain pressing force corresponding to the two lower concave parts;
a pressure relaxing mechanism for reducing a pressing force between the lower convex portion and the lower concave portion.
Preferably, the pressure relieving mechanism comprises a limiting component and a pre-tightening component;
a limiting socket groove is formed in the first part between the two lower protrusions, and a bearing surface is formed at the bottom of the limiting socket groove;
the limiting component is in a rod shape, and the upper end of the limiting component extends into the limiting socket groove and forms a spherical surface which is in contact with the arc-shaped surface;
the pre-tightening component is used for enabling a spherical center surface at the upper end of the limiting component to abut against a bearing surface at the bottom of the limiting socket groove;
the lower convex part and the lower concave part are both arc-shaped surfaces, and the center of the arc-shaped surface of the lower convex part is concentric with the spherical center of the spherical surface, so that when the lower convex part slides relative to the lower concave part, the upper end of the limiting part rolls on the bearing surface; when the lower convex part and the lower concave part slide relatively, the spherical surface can roll at the bottom of the limiting socket groove;
the lower end of the limiting part is connected to the second part.
Preferably, the limiting socket limits the limiting part to move in a direction perpendicular to the sliding direction of the lower convex part and the lower concave part.
Preferably, the second part forms an upper part and a lower part; an elastic buffer disc is arranged between the upper part and the lower part; wherein:
an upper sleeve body used for sleeving the upper component is formed on the upper end face of the elastic buffer disc, and a lower sleeve body used for sleeving the lower component is formed on the lower end face of the elastic buffer disc.
Preferably, the lower end of the second component is provided with an insertion part, the insertion part is combined with the tibia by being inserted into the tibia, a cylindrical cavity is formed in the insertion part, and the lower end of the limiting component extends into the cylindrical cavity; wherein:
the pressure relaxing mechanism further includes:
a compression column arranged at the lower end of the limiting component;
the pre-tightening component is arranged in the cylindrical cavity below the compression leg and used for pushing the compression leg upwards.
Preferably, the pretensioning means comprises:
the first magnet is arranged at the lower end of the compression leg, the first magnet is in a ring shape, the first magnet is surrounded by a plurality of sections of magnetic blocks, and the polarities of the two adjacent sections of magnetic blocks in the same direction are different;
the second magnet is arranged opposite to the first magnet, the second magnet is in a ring shape, the second magnet is surrounded by a plurality of sections of magnetic blocks, and the polarities of the two adjacent sections of magnetic blocks in the same direction are different;
the first adjusting component is arranged at the lower end of the inserting part, a mandrel is arranged on the first adjusting component, and the upper end of the mandrel penetrates through the inserting part and then is connected with the second magnet so as to enable the second magnet to rotate coaxially with the mandrel; wherein:
and the first adjusting component is rotated to change the overlapping degree of the homopolar opposite of the magnetic block of the second magnet and the magnetic block of the first magnet.
Preferably, the pretensioning means comprises:
the elastic column is arranged in the columnar chamber, and the upper end of the elastic column is abutted against the pressure column;
the second sleeve-shaped part is screwed on the lower end of the inserting part and is used for being abutted against the lower end of the elastic main part; wherein,
the pressure of the second adjusting component on the elastic column is changed by rotating the second adjusting component.
Compared with the prior art, the treatment device for the tendinous bones disclosed by the invention has the beneficial effects that: the upper end of the limiting component is abutted against the limiting socket groove through the pre-tightening component and the limiting component, so that the pressing force between the lower convex part and the lower concave part is reduced, and the friction formed between the lower convex part and the lower concave part during sliding is reduced.
Drawings
Fig. 1 is a schematic structural view of a treatment device for tendinous bones according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a treatment device for the tendon bone according to embodiment 2 of the present invention.
Fig. 3 is a view from a-a of fig. 1.
Fig. 4 is a sectional view taken along line B-B of fig. 1.
In the figure:
10-a first component; 11-lower convex part; 12-limiting socket grooves; 121-a bearing surface; 20-a second component; 21-a lower recess; 22-an upper part; 23-a lower part; 24-a plug-in part; 241-a cylindrical chamber; 30-a pressure relief mechanism; 31-a stop member; 311-compression column; 312-spherical surface; 321-a first magnet; 322-a second magnet; 33-a first adjusting section; 331-a mandrel; 34-a magnetic spacer sleeve; 35-a second adjusting part; 36-a resilient post; 40-a resilient buffer disc; 41-upper cover body; 42-lower sheath body.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, an embodiment of the present invention discloses a therapeutic device for a tendon bone, which is a biomimetic implant device for replacing a knee joint of a patient to replace a real knee joint of a human body. The treatment device comprises a first member 10, a second member 20 and a pressure relief mechanism 30. Wherein, the upper end of the first component 10 is used for combining with the femur of the human body (the femur is located at the lower end of the femur of the human body, the femur and the tibia are not shown in the figure), the specific combining mode is no different from the combining mode in the prior art, for example, a plug-in or honeycomb long bone mode can be adopted, the lower surface of the first component 10 is formed with two symmetrically arranged lower convex parts 11, and the curved surface formed by the lower convex parts 11 is matched with the curved surface formed by the real joint at the position; the lower end of the second component 20 is used for combining with the femur of the human body, for example, combining with the tibia in a plugging way, the upper surface of the second component 20 is formed with two lower concave parts 21 which are symmetrically arranged, the curved surface formed by the lower concave parts 21 is matched with the curved surface formed by the real joint at the position, after the first component 10 and the second component 20 are respectively combined with the femur and the tibia, the two lower convex parts 11 of the first component 10 respectively correspondingly lie on the two lower concave parts 21 of the second component 20, so that a pressing force is formed between the lower convex parts 11 and the lower concave parts 21 to support the human body, and when the tendons and muscles of the human body stretch, the lower convex parts 11 and the lower concave parts 21 can relatively slide to complete the knee bending and knee stretching movements. The pressure relaxing mechanism 30 of the present invention reduces the biasing force formed between the lower convex portion 11 and the lower concave portion 21 by applying the biasing force between the lower convex portion 11 and the lower concave portion 21 to the first member 10 and the second member 20.
The invention has the advantages that: the pressing force formed between the lower convex portion 11 similar to the first component 10 and the lower concave portion 21 similar to the second component 20 in the prior art is due to the impact generated by the weight and weight of the human body almost entirely, so that the lower convex portion 11 and the lower concave portion 21 generate great friction force when sliding relatively, on one hand, the abrasion of the lower convex portion 11 and the lower concave portion 21 is increased, and on the other hand, the relative stretching and knee bending action between the first component 10 and the second component 20 is hindered. The invention can reduce the pressing force between the lower convex part 11 and the lower concave part 21 by utilizing the pressure buffering mechanism, further reduce the friction force generated when the lower convex part 11 and the lower concave part 21 slide relatively, thereby reducing the abrasion of the lower convex part 11 and the lower concave part 21 and being beneficial to the relative stretching and knee bending actions of the first component 10 and the second component 20.
The pressure buffering mechanism can reduce the pressing force between the lower convex part 11 and the lower concave part 21 in various ways, and a preferable scheme is provided in an embodiment of the invention, in this embodiment, as shown in fig. 1 and fig. 2, a limit socket 12 is machined between the two lower convex parts 11 of the first component 10, the bottom of the limit socket 12 is provided with a bearing surface 121, and the bearing surface 121 can be provided with wear-resistant characteristics through the selection of machining process or the selection of material (of course, the invention is not necessary); the pressure buffering mechanism comprises a limiting component 31 and a pre-tightening component, wherein the limiting component 31 is arranged in a rod shape, the upper end of the limiting component 31 is arranged into a spherical surface 312, and the upper end of the limiting component 31 extends into the limiting socket 12. In the present embodiment, the notch of the spacing socket 12 extends in the direction in which the lower convex portion 11 and the lower concave portion 21 slide relative to each other, and the two groove walls perpendicular to the sliding direction of the two are opposed to each other so that the spacing groove restricts the movement of the spacing member 31 in the direction perpendicular to the sliding direction and allows the movement in the sliding direction when the lower convex portion 11 and the lower concave portion 21 slide relative to each other. In the present embodiment, with the lower end of the stopper member 31 fitted between the two lower recesses 21 of the second member 20 and with the stopper member 31 protruding beyond the upper end of the second member 20, it is important that the height of the protruding upper end of the stopper member 31 is set to: the center of the curved surface of the lower protruding portion 11 and/or the lower recessed portion 21 is located at substantially the same level as the spherical shape of the spherical surface 312 at the upper end of the stopper member 31, and when the lower protruding portion 11 contacts the lower recessed portion 21, the spherical surface 312 contacts the bearing surface 121. As such, when the lower protruding portion 11 comes into contact with the lower recessed portion 21 and slides relative thereto, the spherical surface 312 exerts a downward force on the bearing surface 121 and the spherical surface 312 rolls on the bearing surface 121. A pretensioning means is provided between the limiting member 31 and the second member 20, which pretensioning means causes the upper end of the limiting member 31 to contact the bearing surface 121 with a certain pretension through the spherical surface 312.
The benefits of the above embodiment are:
through the pre-tightening component and the limiting component 31, the upper end of the limiting component 31 is abutted against the limiting socket 12 (providing pre-tightening force), so that the abutting force between the lower convex part 11 and the lower concave part 21 is reduced, and the friction formed between the two during sliding is reduced (in the prior art, in the implanting device provided with the limiting component 31 similar to the limiting component, the limiting component 31 is only used for limiting the movement in the direction perpendicular to the sliding direction), and importantly: in the present invention, the spherical surface 312 and the bearing surface 121 form rolling friction, and the wear degree is much smaller than that of sliding friction.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, the lower end of the second component 20 is formed with an insertion part 24, the insertion part 24 is combined with the tibia by being inserted into the tibia, a cylindrical chamber 241 is formed in the insertion part 24, and the lower end of the limiting component 31 extends into the cylindrical chamber 241; wherein: the pressure relaxing mechanism 30 further includes: a plunger 311 provided at the lower end of the stopper member 31; a step surface facing downwards for limiting the pressing column 311, and a pre-tightening component arranged in the cylindrical cavity 241 below the pressing column 311 for pushing the pressing column 311 upwards. In this embodiment, the insertion part 24 is a component combined with the tibia. In the present embodiment, the components of the pressure alleviating mechanism 30 are disposed in the insertion part 24, so that the insertion part 24 not only has the function of combining the first component 10 with the tibia, but also can be used for installing the pressure alleviating component, thereby avoiding the installation space reserved for installing the pressure alleviating mechanism 30, and further making the whole therapeutic apparatus compact in structure.
Two types of pretensioning elements are described below.
Example 1
In this embodiment, as shown in fig. 1, the preloading means includes: a first magnet 321 and a second magnet 322. The first magnet 321 is arranged at the lower end of the pressing column 311, the first magnet 321 is in a ring shape, the first magnet 321 is surrounded by a plurality of sections of magnetic blocks (the magnetic blocks can be made of neodymium magnets with magnetic isolation layers), and the polarities of the two adjacent sections of magnetic blocks in the same direction are different; the second magnet 322 is arranged opposite to the first magnet 321, the second magnet 322 is in a ring shape, the second magnet 322 is surrounded by a plurality of sections of magnetic blocks, and the polarities of the two adjacent sections of magnetic blocks in the same direction are different; the first adjusting component 33 is arranged at the lower end of the insertion part 24, a mandrel 331 is arranged on the first adjusting component 33, and the upper end of the mandrel 331 is connected with the second magnet 322 after penetrating through the insertion part 24 so as to enable the second magnet 322 to rotate coaxially with the mandrel 331; wherein: the degree of overlap of the like poles of the magnetic blocks of the second magnet 322 with respect to the magnetic blocks of the first magnet 321 is changed by rotating the first adjusting member 33. In the embodiment, since the two magnets are formed by abutting multiple sections of magnetic blocks, the degree of the relative overlap between the magnetic blocks of the second magnet 322 and the magnetic blocks of the first magnet 321 can be changed by the first adjusting component 33. Like this, can change the magnetic repulsion between two magnets, like this, when the biasing force between protruding portion 11 and the lower recess 21 is reduced down to needs, can make two relative overlap degree increase of magnet homopolarity, and then can increase the magnetic repulsion between two magnets, and then increase the pretightning force of spacing part 31 to loading surface 121, and then the corresponding biasing force that has reduced between lower protruding portion 11 and the lower recess 21.
Example 2
In this embodiment, as shown in fig. 2, the preloading means includes: a resilient post 36 and a second adjustment member 35. The second blanket part is screwed on the lower end of the inserting part 24, the elastic column 36 is arranged in the columnar cavity 241, and the upper end and the lower end of the elastic column 36 are respectively abutted to the pressing column 311 and the second adjusting part 35, so that the pressure of the second adjusting part 35 on the elastic column 36 is changed by rotating the second adjusting part 35, the abutting force of the elastic column 36 on the limiting part 31 is further changed, the pretightening force of the limiting part 31 on the bearing surface 121 is further changed, and the abutting force between the lower convex part 11 and the lower concave part 21 is further changed.
The advantages of the above embodiment are:
1. the two magnets or the elastic columns 36 are used in cooperation, so that the limiting part 31 has micro-expansion capability, and the micro-expansion capability of the limiting part 31 is very beneficial to the service life of the limiting part 31, for example, when a human body jumps, the limiting part 31 can absorb impact by retracting (if the limiting part 31 is not provided with pretightening force by the magnets or the elastic columns 36 but is provided with pretightening force by a rigid part, the limiting part 31 is easy to deform or break after being impacted), so that the limiting part 31 is protected from being damaged, and the impact formed between the first part 10 and the second part 20 can also be relieved.
2. The two embodiments can adjust the pretightening force of the limiting component 31 on the bearing surface 121 by rotating the adjusting component, so that the use of human bodies with different weights is met. For example, when the weight of a patient is large, the pressing force between the lower convex portion 11 and the lower concave portion 21 is larger than that of the patient with small weight, and the adjusting member is rotated to increase the pretightening force of the limiting member 31 on the bearing surface 121 to reduce the pressing force, so that the patient does not wear the lower convex portion 11 and the lower concave portion 21 too fast due to the large weight.
In a preferred embodiment of the invention, the second part 20 forms an upper part 22 and a lower part 23; an elastic buffer disc 40 is arranged between the upper part 22 and the lower part 23; wherein: an upper sleeve body 41 for sleeving the upper member 22 is formed on the upper end surface of the elastic buffer disk 40, and a lower sleeve body 42 for sleeving the lower member 23 is formed on the lower end surface of the elastic buffer disk 40. In this embodiment, the upper sheath body 41 covers the upper member 22 in a tight manner, and the lower sheath body 42 covers the lower member 23 in a tight manner. In the present embodiment, the elastic buffer disc 40 is provided, so that when the patient performs a jump or the like, the elastic buffer disc 40 can reduce the impact of the first member 10 and the second member 20 at the lower convex portion 11 and the upper convex portion, and further can effectively prevent the first member 10 and the second member 20 from being broken (the first member 10 and the second member 20 are usually made of a ceramic or alloy material with high hardness, high brittleness and excellent wear resistance).
It should be noted that: the treatment device provided in example 1 was implanted in the knee joint of a patient for X-ray or CT without MRI (magnetic resonance imaging) as much as possible. To reduce the effect of the device on nuclear magnetism, as shown in fig. 1, a magnetic isolation sleeve 34 is provided within the cylindrical chamber 241 to minimize the effect of the magnetic field on the imaging operation.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (7)
1. A treatment device for the bones of the tendon, comprising:
the first component is used for being combined with a femur, and two lower convex parts which are symmetrically arranged are formed on the lower surface of the first component;
the upper surface of the second component is provided with two symmetrically arranged lower concave parts which are respectively contacted with a certain pressing force corresponding to the two lower concave parts;
a pressure relaxing mechanism for reducing a pressing force between the lower convex portion and the lower concave portion.
2. The treatment device for the bones of tendon according to claim 1, wherein said pressure moderating mechanism includes a limiting member and a pre-tightening member;
a limiting socket groove is formed in the first part between the two lower protrusions, and a bearing surface is formed at the bottom of the limiting socket groove;
the limiting component is in a rod shape, and the upper end of the limiting component extends into the limiting socket groove and forms a spherical surface which is in contact with the arc-shaped surface;
the pre-tightening component is used for enabling a spherical center surface at the upper end of the limiting component to abut against a bearing surface at the bottom of the limiting socket groove;
the lower convex part and the lower concave part are both arc-shaped surfaces, and the center of the arc-shaped surface of the lower convex part is concentric with the spherical center of the spherical surface, so that when the lower convex part slides relative to the lower concave part, the upper end of the limiting part rolls on the bearing surface; when the lower convex part and the lower concave part slide relatively, the spherical surface can roll at the bottom of the limiting socket groove;
the lower end of the limiting part is connected to the second part.
3. The treatment device for the bones of tendon according to claim 1, wherein the retaining socket limits movement of the retaining member in a direction perpendicular to the direction of relative sliding movement of the lower convex portion and the lower concave portion.
4. A treatment device for the tendon bones as claimed in claim 4 wherein the second component forms an upper component and a lower component; an elastic buffer disc is arranged between the upper part and the lower part; wherein:
an upper sleeve body used for sleeving the upper component is formed on the upper end face of the elastic buffer disc, and a lower sleeve body used for sleeving the lower component is formed on the lower end face of the elastic buffer disc.
5. The treatment device for the tendinous bone according to claim 2, wherein the second component has a lower end formed with an insertion portion that is coupled to the tibia by insertion into the tibia, the insertion portion having a cylindrical cavity formed therein into which the lower end of the stop member extends; wherein:
the pressure relaxing mechanism further includes:
a compression column arranged at the lower end of the limiting component;
the pre-tightening component is arranged in the cylindrical cavity below the compression leg and used for pushing the compression leg upwards.
6. A treatment device for the tendon bones of claim 5 wherein the pretensioning member comprises:
the first magnet is arranged at the lower end of the compression leg, the first magnet is in a ring shape, the first magnet is surrounded by a plurality of sections of magnetic blocks, and the polarities of the two adjacent sections of magnetic blocks in the same direction are different;
the second magnet is arranged opposite to the first magnet, the second magnet is in a ring shape, the second magnet is surrounded by a plurality of sections of magnetic blocks, and the polarities of the two adjacent sections of magnetic blocks in the same direction are different;
the first adjusting component is arranged at the lower end of the inserting part, a mandrel is arranged on the first adjusting component, and the upper end of the mandrel penetrates through the inserting part and then is connected with the second magnet so as to enable the second magnet to rotate coaxially with the mandrel; wherein:
and the first adjusting component is rotated to change the overlapping degree of the homopolar opposite of the magnetic block of the second magnet and the magnetic block of the first magnet.
7. A treatment device for the tendon bones of claim 5 wherein the pretensioning member comprises:
the elastic column is arranged in the columnar chamber, and the upper end of the elastic column is abutted against the pressure column;
the second sleeve-shaped part is screwed on the lower end of the inserting part and is used for being abutted against the lower end of the elastic main part; wherein,
the pressure of the second adjusting component on the elastic column is changed by rotating the second adjusting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078919.7A CN109106477B (en) | 2018-09-17 | 2018-09-17 | Treatment device for tendon bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078919.7A CN109106477B (en) | 2018-09-17 | 2018-09-17 | Treatment device for tendon bone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109106477A true CN109106477A (en) | 2019-01-01 |
| CN109106477B CN109106477B (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811078919.7A Expired - Fee Related CN109106477B (en) | 2018-09-17 | 2018-09-17 | Treatment device for tendon bone |
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| Country | Link |
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| CN (1) | CN109106477B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110766789A (en) * | 2019-10-18 | 2020-02-07 | 中国人民解放军陆军军医大学 | Morphology recognition and visualization method for posterior-lateral complex tendon-bone joint of knee joint |
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|---|---|---|---|---|
| CN1505496A (en) * | 2001-04-25 | 2004-06-16 | �����������ֶ� | Knee prosthesis with rotation bearing |
| WO2012016002A1 (en) * | 2010-07-30 | 2012-02-02 | Howmedica Osteonics Corp. | Stabilized knee prosthesis |
| CN102499795A (en) * | 2011-11-10 | 2012-06-20 | 上海交通大学 | Knee joint prosthesis with functions of elastic meniscus |
| CN203576701U (en) * | 2013-11-07 | 2014-05-07 | 桂林电子科技大学 | Artificial knee joint |
-
2018
- 2018-09-17 CN CN201811078919.7A patent/CN109106477B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505496A (en) * | 2001-04-25 | 2004-06-16 | �����������ֶ� | Knee prosthesis with rotation bearing |
| WO2012016002A1 (en) * | 2010-07-30 | 2012-02-02 | Howmedica Osteonics Corp. | Stabilized knee prosthesis |
| CN102499795A (en) * | 2011-11-10 | 2012-06-20 | 上海交通大学 | Knee joint prosthesis with functions of elastic meniscus |
| CN203576701U (en) * | 2013-11-07 | 2014-05-07 | 桂林电子科技大学 | Artificial knee joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110766789A (en) * | 2019-10-18 | 2020-02-07 | 中国人民解放军陆军军医大学 | Morphology recognition and visualization method for posterior-lateral complex tendon-bone joint of knee joint |
| CN110766789B (en) * | 2019-10-18 | 2023-07-07 | 中国人民解放军陆军军医大学 | Morphology recognition and visualization method for knee joint posterolateral complex tendinous bone junction |
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| CN109106477B (en) | 2021-08-27 |
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