CN114010296A - Locking plate for distal tibia - Google Patents
- ️Tue Feb 08 2022
CN114010296A - Locking plate for distal tibia - Google Patents
Locking plate for distal tibia Download PDFInfo
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Publication number
- CN114010296A CN114010296A CN202111313839.7A CN202111313839A CN114010296A CN 114010296 A CN114010296 A CN 114010296A CN 202111313839 A CN202111313839 A CN 202111313839A CN 114010296 A CN114010296 A CN 114010296A Authority
- CN
- China Prior art keywords
- hole
- locking
- locking plate
- guide pin
- solid Prior art date
- 2021-11-08 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
- 210000002303 tibia Anatomy 0.000 title claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 38
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 20
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims 1
- 230000035876 healing Effects 0.000 abstract description 12
- 238000002513 implantation Methods 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 12
- 206010017076 Fracture Diseases 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 208000032170 Congenital Abnormalities Diseases 0.000 description 3
- 206010061619 Deformity Diseases 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008468 bone growth Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000024779 Comminuted Fractures Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention provides a locking plate for distal tibia, comprising: the body is positioned on the outer layer, and the body is positioned in the body; wherein the solid body and the porous inner layer structure are both in a large structure. The advantages are that: the adoption outside establishes the solid body, the mode that porous inner layer structure was established to inside, has guaranteed the intensity of lockplate promptly, makes the implantation back again can form the bone in-growth in fracture department simultaneously, improves biomechanics stability, promotes the healing.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a locking plate for a distal tibia.
Background
The tibia far-end outer side locking plate is mainly used for treating tibia far-end outer side fracture, has the advantages of good internal fixation, small wound, simplicity in operation and the like, is more favorable for anatomical reduction of fracture by using guide pin temporary fixation, can be used for functional exercise of postoperative patients, and is the most ideal method for treating tibia far-end outer side fracture at present.
However, the locking plate of the prior structure still has a plurality of defects, such as: the anatomical matching degree of the bent part is poor, so that the bent part is extremely unstable in the use process, and comminuted fracture is easy to occur, so that the fracture reduction effect cannot occur; if the used material is completely a steel plate structure, the joint with the bone can not well form bone ingrowth, the biomechanical stability is poor, and the deformity healing of the later-stage fracture part is easy to cause.
Disclosure of Invention
The invention provides a locking plate for the distal tibia, which aims to overcome at least one technical defect, so that the locking plate can better perform bone ingrowth and improve the stability of the locking plate.
In order to achieve the above purpose, the invention provides the following technical scheme:
a locking plate for distal tibia, comprising: comprises a solid body positioned at an outer layer and a porous inner layer structure positioned in the solid body; wherein the solid body and the porous inner layer structure are both in a large structure.
Preferably, the entity body comprises an upper entity part, two lower entity parts arranged in a mirror image manner, and a first mesh part arranged in a mirror image manner, wherein the upper entity part, the lower entity parts and the first mesh part form a large shape, a plurality of first fixed hole assemblies are arranged on the entity body, and the plurality of first fixed hole assemblies are positioned at the upper parts of the upper entity part and the two lower entity parts, so that the plurality of first fixed hole assemblies form a human shape on the entity body;
wherein, No. one netted portion is used for laminating in sclerotin surface after buckling.
Preferably, a first guide pin hole and at least one first locking hole are formed in the lower entity portion, and a gap is formed between the first guide pin hole and the first locking hole.
Preferably, the number one locking hole is two, and two number one locking holes and one number one guide pin hole on the lower solid part form a triangle in space.
Preferably, the top of the upper solid part is provided with at least one first guide pin hole.
Preferably, the first fixing hole assembly is composed of a second locking hole and a pressurizing hole, and the second locking hole and the pressurizing hole are communicated in an overlapped mode.
Preferably, the porous inner layer structure is provided with a second fixing component corresponding to the first fixing component, a second mesh part corresponding to the first mesh part, a second guide pin hole corresponding to the first guide pin hole, and a third locking hole corresponding to the first locking hole.
Preferably, the porosity of the porous inner layer structure is 50% -80%, the pore diameter of 40% is 100um-200um, and the pore diameter of 60% is 200um-400 um.
The locking plate for the distal tibia has the advantages that: the invention adopts the mode of arranging the solid body outside and the porous inner layer structure inside, thereby not only ensuring the strength of the locking plate, but also forming bone ingrowth at the fracture part after implantation, improving the biomechanical stability and promoting healing;
in addition, the structure design of the first mesh part and the second mesh part in the structure of the invention can be bent to 'embrace' the freely reduced bone blocks, meanwhile, other materials can be implanted to promote the rapid healing of the fracture, and the motion degree of the naked joint cannot be influenced by the deformity caused by pressure in the later period.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a locking plate for the distal tibia according to the present invention;
FIG. 2 is a schematic structural view of a porous inner layer structure;
wherein:
the
body1, the
upper body11, the
lower body12, the first
guide pin hole121, the
first locking hole122, the
first mesh part13, the first
fixing hole assembly14, the
second locking hole141, the pressurizing
hole142;
a porous
inner layer structure2, a second
fixed hole component21, a
second net part22, a second
guide pin hole23 and a
third locking hole24.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to enable the locking plate to form bone ingrowth at the fracture part after being implanted, improve the biomechanical stability and promote healing, the invention provides a locking plate for the distal tibia, which is combined with the locking plate shown in figures 1 and 2, and comprises: the
solid body1 is positioned at the outer layer, and the porous
inner layer structure2 is positioned in the
solid body1; wherein the
solid body1 and the porous
inner layer structure2 are both in a large shape;
more specifically, it is preferable that the thickness of the
solid body1 is 3mm, and the porous
inner layer structure2 is 1 mm; the locking plate structure is printed integrally by using a 3D technology, the thickness and the size of the locking plate structure are controllable, the strength and the fixing area of the locking plate structure are not influenced, the locking plate structure is easier to place and is beneficial to healing of skin tissues. Preferably, the locking plate structure is made of aluminum alloy.
In a specific embodiment, according to fig. 1, in order to further enhance the stability and the bone fusion after the locking plate is implanted, the
solid body1 includes an upper
solid portion11, two lower
solid portions12 arranged in a mirror image, and two
first mesh portions13 arranged in a mirror image, the upper
solid portion11, the lower
solid portions12, and the
first mesh portions13 form a "big" shape, a plurality of first
fixing hole assemblies14 are disposed on the
solid body1, and a plurality of the first
fixing hole assemblies14 are disposed on the upper
solid portion11 and the upper portions of the two lower
solid portions12, so that a plurality of the first fixing hole assemblies 14 form a "human" shape on the
solid body1, and the locking plate is firmly fixed by the first
fixing hole assemblies14 after the locking plate is implanted; the
first mesh part13 is used for being attached to the surface of a bone after being bent, so that the influence on the motion degree of a naked joint due to deformed healing caused by pressure is avoided;
preferably, two adjacent first number
fixation hole assemblies14 are spaced 11mm apart and fit 3.5mm screws.
Specifically, the
lower entity portion12 is provided with a first
guide pin hole121 and at least one
first locking hole122, and a gap is formed between the first
guide pin hole121 and the
first locking hole122; the locking plate is temporarily fixed on the tibia of the patient by inserting the guide pin into the first
guide pin hole121, so that subsequent operation can be smoothly performed; the arrangement of the
first locking hole122 can assist the first
guide pin hole121 to perform temporary fixation in the early stage, so that accurate positioning is facilitated, and the locking plate can be firmly fixed at the fracture position by penetrating a locking screw through the
first locking hole122 in the later stage;
in order to enhance the fixing effect, the number one
locking hole122 is two, and the two number one
locking holes122 and the number one
guide pin hole121 on the
lower entity portion12 form a triangle in space, so that the stability of the triangle structure is stronger.
The top of the upper
solid part11 is provided with at least one first
guide pin hole121, and a guide pin can be temporarily fixed on the tibia of the patient through the first
guide pin hole121 on the upper
solid part11, so that accurate positioning is facilitated;
because the locking plate is of a large shape, the upper part and the lower part of the locking plate are respectively provided with the first
guide pin hole121, and the plurality of the first
guide pin holes121 form a triangle in space, and the triangle has special stability, the locking plate is firmer when being temporarily fixed, the positioning accuracy is effectively improved, the success rate of the operation is improved, and the healing degree of a patient is better.
In the embodiment, the number one
fixing hole assembly14 is composed of a number two
locking hole141 and a pressurizing
hole142, and the number two
locking hole141 and the pressurizing
hole142 are overlapped and communicated with each other. The
second locking hole141 can be used for conventional vertical locking, and the core of the pressurizing
hole142 is used for pressurizing and locking, so that the use is convenient, the structure is stable, and the operation requirements can be further met; preferably, the side arm of the
second locking hole141 is a tapered hole, and the pressurizing
hole142 is a slotted ball hole, so that the locking screw can be implanted in a certain angle direction, and the direction can be selected according to actual conditions when the locking screw is used.
In a specific embodiment, according to fig. 2, in order to facilitate bone ingrowth and promote healing after the locking plate of the present invention is implanted, a second number of
fixing hole assemblies21 corresponding to the first number of
fixing hole assemblies14, a second number of
mesh portions22 corresponding to the first number of
mesh portions13, a second number of
guide pin holes23 corresponding to the first number of
guide pin holes121, and a third number of
locking holes24 corresponding to the first number of
locking holes122 are arranged on the porous
inner layer structure2, and screws are simultaneously passed through the first number of fixing hole assemblies 4 and the second number of
fixing hole assemblies21 to fix the locking plate; a guide pin simultaneously passes through the first
guide pin hole121 and the second guide pin hole 23 (because the first
guide pin hole121 and the second
guide pin hole23 are correspondingly formed, the
entity body1 and the porous
inner layer structure2 are simultaneously fixed) to temporarily fix the locking plate, and the
first locking hole122 and the
third locking hole24 are the same;
in the embodiment, bone tissues pass through the
solid body1 and then enter the porous
inner layer structure2, so that bone of a patient grows in the porous
inner layer structure2, and then grow out of the
solid body1 to grow together with the bone of the patient, so that the long-term stability in the true sense is achieved, blood circulation is promoted, the fracture deformity is prevented from healing, sufficient bone growth is ensured, and the structure is consistent with the surface curvature of the bone of the patient;
in order to improve the bone growth effect, the porosity of the porous
inner layer structure2 is 50% -80%, the aperture of 40% is 100um-200um, and the aperture of 60% is 200um-400 um;
more specifically, in order to enhance the strength of the locking plate of the present invention, the second
fixing hole assembly21, the second
guide pin hole23, and the
third locking hole24 provided on the porous
inner layer structure2 are all solid holes.
In the invention, the
first mesh part13 and the
second mesh part22 are both designed in irregular structures, different sizes can be designed according to requirements, when the
first mesh part13 and the
second mesh part22 are bent at the same time (here, because the
first mesh part13 and the
second mesh part22 correspond in structure, and the
second mesh part22 is sleeved in the
first mesh part13, the
first mesh part13 outside the locking plate can be bent, so that the purpose of bending the
first mesh part13 and the
second mesh part22 at the same time can be achieved, bone blocks after free reduction can be clasped at two sides of the locking plate, and meanwhile, in order to promote the healing speed of fracture, growth-promoting bone particles can be implanted on the
first mesh part13 and the
second mesh part22, so that the structure can not form pressure to cause abnormal healing to influence the activity of a naked joint in the later period.
The invention is realized by the following steps:
1. attaching a locking plate to the surface of the fractured bone after fracture reduction, adjusting the position and placing the locking plate on the front outer side;
2. selecting a nail hole to drive a locking screw and a pressurizing screw into the bone;
3. bending the first mesh part and the second mesh part on two sides by using an instrument according to the curvature so as to hold the reset bone block;
4. then other screws are driven to complete the fixation.
The structures or principles detailed in the present invention are available to those skilled in the art through conventional techniques, and thus are not described in detail.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. Locking plate is used to shin bone distal end, its characterized in that: comprises a solid body (1) positioned at the outer layer and a porous inner layer structure (2) positioned in the solid body (1); wherein the solid body (1) and the porous inner layer structure (2) are both in a large shape.
2. A locking plate for distal tibia according to claim 1, wherein: the solid body (1) comprises an upper solid part (11), two lower solid parts (12) arranged in a mirror image manner and a first mesh part (13) arranged in a mirror image manner, wherein the upper solid part (11), the lower solid parts (12) and the first mesh part (13) form a large shape, a plurality of first fixed hole assemblies (14) are arranged on the solid body (1), and the plurality of first fixed hole assemblies (14) are positioned on the upper solid part (11) and the upper parts of the two lower solid parts (12), so that the plurality of first fixed hole assemblies (14) form a human shape on the solid body (1);
wherein, the first mesh part (13) is used for being attached to the surface of a bone substance after being bent.
3. A locking plate for distal tibia according to claim 2, wherein: a first guide pin hole (121) and at least one first locking hole (122) are formed in the lower entity portion (12), and a gap is formed between the first guide pin hole (121) and the first locking hole (122).
4. A locking plate for distal tibia according to claim 3, wherein: the number one locking holes (122) is two, and the two number one locking holes (122) and the number one guide pin hole (121) on the lower entity part (12) form a triangle in space.
5. A locking plate for distal tibia according to claim 2, wherein: the top of the upper entity part (11) is provided with at least one first guide pin hole (121).
6. The locking plate for distal tibia according to claim 4, wherein: the first fixed hole assembly (14) is composed of a second locking hole (141) and a pressurizing hole (142), and the second locking hole (141) and the pressurizing hole (142) are mutually overlapped and communicated.
7. The locking plate for distal tibia according to claim 6, wherein: and a second fixed hole component (21) corresponding to the first fixed hole component (14), a second meshed part (22) corresponding to the first meshed part (13), a second guide pin hole (23) corresponding to the first guide pin hole (121) and a third locking hole (24) corresponding to the first locking hole (122) are arranged on the porous inner layer structure (2).
8. A locking plate for distal tibia according to claim 1, wherein: the porosity of the porous inner layer structure (2) is 50% -80%, the aperture of 40% is 100um-200um, and the aperture of 60% is 200um-400 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313839.7A CN114010296A (en) | 2021-11-08 | 2021-11-08 | Locking plate for distal tibia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313839.7A CN114010296A (en) | 2021-11-08 | 2021-11-08 | Locking plate for distal tibia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114010296A true CN114010296A (en) | 2022-02-08 |
Family
ID=80062293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111313839.7A Pending CN114010296A (en) | 2021-11-08 | 2021-11-08 | Locking plate for distal tibia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114010296A (en) |
Cited By (1)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115568929A (en) * | 2022-09-28 | 2023-01-06 | 北京科技大学 | Customized degradable metal bone plate and additive manufacturing method thereof |
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|---|---|---|---|---|
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| CN104840242A (en) * | 2015-05-03 | 2015-08-19 | 刘乐 | Tibia bone fracture plate of medical equipment for orthopedic surgery |
| CN204734538U (en) * | 2015-06-10 | 2015-11-04 | 何志军 | Compound coaptation board of micropore titanium |
| CN106983551A (en) * | 2017-05-12 | 2017-07-28 | 国家康复辅具研究中心 | Porous complex bone plate of rigidity gradient change and preparation method thereof |
| CN109171935A (en) * | 2018-10-15 | 2019-01-11 | 济南大学 | Magnesium alloy fracture of tibia bone plate |
| CN109316232A (en) * | 2018-10-31 | 2019-02-12 | 济南大学 | Proximal Tibia Locking Plate |
| CN112998834A (en) * | 2021-02-25 | 2021-06-22 | 中国人民解放军总医院第四医学中心 | Tibial plateau posterior surgical steel plate |
| CN216933423U (en) * | 2021-11-08 | 2022-07-12 | 北京市春立正达医疗器械股份有限公司 | Locking plate for tibia |
-
2021
- 2021-11-08 CN CN202111313839.7A patent/CN114010296A/en active Pending
Patent Citations (8)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437461A (en) * | 2006-04-14 | 2009-05-20 | 华沙整形外科股份有限公司 | Fixation plate with a bone growth promoting substance and method of use |
| CN104840242A (en) * | 2015-05-03 | 2015-08-19 | 刘乐 | Tibia bone fracture plate of medical equipment for orthopedic surgery |
| CN204734538U (en) * | 2015-06-10 | 2015-11-04 | 何志军 | Compound coaptation board of micropore titanium |
| CN106983551A (en) * | 2017-05-12 | 2017-07-28 | 国家康复辅具研究中心 | Porous complex bone plate of rigidity gradient change and preparation method thereof |
| CN109171935A (en) * | 2018-10-15 | 2019-01-11 | 济南大学 | Magnesium alloy fracture of tibia bone plate |
| CN109316232A (en) * | 2018-10-31 | 2019-02-12 | 济南大学 | Proximal Tibia Locking Plate |
| CN112998834A (en) * | 2021-02-25 | 2021-06-22 | 中国人民解放军总医院第四医学中心 | Tibial plateau posterior surgical steel plate |
| CN216933423U (en) * | 2021-11-08 | 2022-07-12 | 北京市春立正达医疗器械股份有限公司 | Locking plate for tibia |
Cited By (2)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115568929A (en) * | 2022-09-28 | 2023-01-06 | 北京科技大学 | Customized degradable metal bone plate and additive manufacturing method thereof |
| CN115568929B (en) * | 2022-09-28 | 2024-02-09 | 北京科技大学 | A customized degradable metal bone plate and its additive manufacturing method |
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| Date | Code | Title | Description |
|---|---|---|---|
| 2022-02-08 | PB01 | Publication | |
| 2022-02-08 | PB01 | Publication | |
| 2022-02-25 | SE01 | Entry into force of request for substantive examination | |
| 2022-02-25 | SE01 | Entry into force of request for substantive examination | |
| 2024-05-24 | RJ01 | Rejection of invention patent application after publication | |
| 2024-05-24 | RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220208 |