CN110448372A - Locking fastening structure and clamp device - Google Patents
Locking fastening structure and clamp device Download PDFInfo
- Publication number
- CN110448372A CN110448372A CN201910844467.7A CN201910844467A CN110448372A CN 110448372 A CN110448372 A CN 110448372A CN 201910844467 A CN201910844467 A CN 201910844467A CN 110448372 A CN110448372 A CN 110448372A
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- fastener
- fastening structure
- locking fastening
- operational instrument
- operating cavity
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 210000004872 soft tissue Anatomy 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 3
- 206010010356 Congenital anomaly Diseases 0.000 description 2
- 208000012659 Joint disease Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone
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)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of locking fastening structure and clamp devices, fastener is provided in locking fastening structure, fastener is mushy column structure, there is the first external screw thread on the outer peripheral surface of fastener, at least part of fastener to be screwed into bone tissue, the prostheses such as steel plate can be fixed on bone tissue by the locking fastening structure in this way.Since fastener is mushy column structure, after fastener is screwed into bone tissue, bone tissue can be grown into multiple holes of fastener, fastener can be achieved in this way to merge and be reliably connected with the biology of bone tissue, the problem of to prevent patient from fastener convolution being caused to loosen in activity, improve the reliability that prosthese is chronically implanted.By the way that operating cavity is arranged, multiple holes of fastener can be observed directly, out of operating cavity while convenient for rotation fastener so as to observe the case where bone tissue grows into multiple holes.By the way that plug is arranged, pulp cavity inside bone tissue can be prevented to be connected to external soft tissue.
Description
Technical field
The present invention relates to the field of medical instrument technology, in particular to a kind of locking fastening structure and clamp device.
Background technique
Joint disease, orthopedic injury, congenital anomaly of skeletal bone etc. can cause subjects bones' pain or disabler.Steel plate
It reinforces, bone section and joint replacement are treatment joint diseases, the effective means of orthopedic injury, congenital anomaly of skeletal bone.
Steel plate reinforcement, bone section and joint replacement would generally use orthopaedic screw to the prostheses such as the steel plate of implantation and bone tissue into
Row connection.Because of reasons such as human body walking or weight bearings, existing orthopaedic screw be will appear back in human body by pulsating stress effect
Rotation causes to be implanted into prosthetic loosening.
Summary of the invention
The present invention provides a kind of locking fastening structure and clamp devices, easily loose to solve orthopaedic screw in the prior art
Dynamic problem.
To solve the above-mentioned problems, according to an aspect of the present invention, the present invention provides a kind of locking fastening structure, packets
Include: fastener, fastener are mushy column structure, have the first external screw thread on the outer peripheral surface of fastener, by fastener
At least part be screwed into bone tissue.
Further, fastener has operating cavity, has confined planes on the inner wall of operating cavity, operating cavity is for penetrating operation
A part of tool, the confined planes of operating cavity, which are used to limit with operational instrument, to be cooperated, to rotate fastener by operational instrument.
Further, fastener has opposite first end and second end, and first end is for penetrating in bone tissue, first end
For pyramidal structure.
Further, fastener has opposite first end and second end, and first end is prevented elastic for penetrating in bone tissue
Fixing structure further include: the second end of fastener is arranged in locating part, and the radial dimension of locating part is greater than the radial ruler of fastener
It is very little.
Further, locating part is entity structure, and fastener and locating part are integrally formed.
Further, fastener has operating cavity, has confined planes on the inner wall of operating cavity, operating cavity is for penetrating operation
A part of tool, confined planes, which are used to limit with operational instrument, to be cooperated, to rotate fastener by operational instrument；Locating part has
Avoid holes, avoid holes are connected to operating cavity.
Further, locking fastening structure further include: plug, plug are removably connect with locating part, and plug is for sealing
Stifled avoid holes.
Further, the inner wall of avoid holes has internal screw thread, has the second external screw thread, the second outer spiral shell on the outer peripheral surface of plug
Line is connect with screw-internal thread fit.
Further, plug has handle hole, has confined planes on the inner wall of handle hole, handle hole is for penetrating operative employee
A part of tool, the confined planes of handle hole, which are used to limit with operational instrument, to be cooperated, to rotate plug by operational instrument.
According to another aspect of the present invention, a kind of clamp device is provided, clamp device includes locking fastening structure and behaviour
Make tool, operational instrument includes sequentially connected handle, connecting rod and operation portion, and at least part of operation portion is anti-for penetrating
Elastic fixing structure is to rotate locking fastening structure.
It applies the technical scheme of the present invention, fastener is provided in locking fastening structure, fastener is mushy column
Shape structure has the first external screw thread on the outer peripheral surface of fastener, at least part of fastener is screwed into bone tissue, in this way
The prostheses such as steel plate can be fixed on bone tissue by the locking fastening structure.Since fastener is mushy column structure,
After fastener is screwed into bone tissue, bone tissue can be grown into multiple holes of fastener, and fastener and bone can be achieved in this way
The biology of tissue is merged and is reliably connected, to improve the problem of preventing patient from fastener convolution being caused to loosen in activity
The reliability that prosthese is chronically implanted.
Moreover, while convenient for rotation fastener, fastening can be observed directly out of operating cavity by setting operating cavity
Multiple holes of part, so as to observe the case where bone tissue grows into multiple holes.Optionally, the radial section of operating cavity is positive
The radial section of the part of hexagon, operational instrument and operating cavity cooperation is also regular hexagon, is convenient for grafting in this way and realization can
By limit.By the way that plug is arranged, pulp cavity inside bone tissue can be prevented to be connected to external soft tissue.It, can by aforesaid operations tool
Fastener and plug are rotated using the same operational instrument, no replacement is required in this way tool convenient for operating, and can reduce tool
Quantity reduces manufacturing cost.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the locking fastening structure of the embodiment of the present invention offer；
Fig. 2 shows the schematic diagrames of fastener and locating part in Fig. 1；
Fig. 3 shows the right view of Fig. 2；
Fig. 4 shows the schematic diagram of the plug in Fig. 1；
Fig. 5 shows the right view of Fig. 4；
Fig. 6 shows the schematic diagram of the operational instrument in the clamp device of the embodiment of the present invention offer.
Wherein, the above drawings include the following reference numerals:
10, fastener；11, the first external screw thread；12, operating cavity；20, locating part；21, avoid holes；22, internal screw thread；30, it blocks up
Head；31, the second external screw thread；32, handle hole；40, operational instrument；41, handle；42, connecting rod；43, first body of rod；44, second
The body of rod.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figures 1 to 5, the embodiment provides a kind of locking fastening structures, comprising: fastener 10, tightly
Firmware 10 is mushy column structure, has the first external screw thread 11 on the outer peripheral surface of fastener 10, extremely by fastener 10
Few a part is screwed into bone tissue.
It applies the technical scheme of the present invention, fastener 10 is provided in locking fastening structure, fastener 10 is porous
Column structure, there is on the outer peripheral surface of fastener 10 first external screw thread 11, at least part of fastener 10 is screwed into bone
In tissue, the prostheses such as steel plate can be fixed on bone tissue by the locking fastening structure in this way.Since fastener 10 is porous
The column structure of gap, after fastener 10 is screwed into bone tissue, bone tissue can be grown into multiple holes of fastener 10, in this way
Fastener 10 can be achieved to merge and be reliably connected with the biology of bone tissue, to prevent patient from fastener 10 being caused to return in activity
Dynamic problem is unscrewed, the reliability that prosthese is chronically implanted is improved.
In the present embodiment, fastener 10 has operating cavity 12, has confined planes, operating cavity 12 on the inner wall of operating cavity 12
For penetrating a part of operational instrument 40, the confined planes of operating cavity 12, which are used to limit with operational instrument 40, to be cooperated, to pass through behaviour
Make tool 40 and rotates fastener 10.A part that operating cavity 12 is used to penetrate operational instrument 40 can be understood as operating cavity 12 and be used for
It is penetrated into inside operating cavity 12 for a part of structure of operational instrument 40.A part of structure of operational instrument 40 penetrates into operating cavity
Behind 12 inside, confined planes and operational instrument 40 limit of operating cavity 12 cooperate, the circumferential direction of such fastener 10 and operational instrument 40
Relative position is fixed, and fastener 10 can be turned by then rotating operational instrument 40, to realize the installation and removal of fastener 10.
Moreover, multiple holes of fastener 10 can be observed directly out of operating cavity 12 by setting operating cavity 12, thus
The case where bone tissue grows into multiple holes can be observed, the observational studies such as test are convenient for.Optionally, the radial direction of operating cavity 12
Section is regular hexagon, and the radial section for the part that operational instrument 40 and operating cavity 12 cooperate also is regular hexagon, is convenient in this way
Grafting simultaneously realizes reliable limit.
In the present embodiment, fastener 10 has opposite first end and second end, and first end is used to penetrate in bone tissue,
First end is pyramidal structure.It is convenient for for fastener 10 being screwed into bone tissue by above-mentioned setting.
In the present embodiment, fastener 10 has opposite first end and second end, and first end is used to penetrate in bone tissue,
Locking fastening structure further include: the second end of fastener 10 is arranged in locating part 20, and the radial dimension of locating part 20 is greater than fastening
The radial dimension of part 10.The prostheses such as the steel plate that locating part 20 is used to be implanted into needs cooperate, and to limit to prosthese, realize false
Body and bone tissue are reliably connected.
Further, locating part 20 is entity structure, and fastener 10 and locating part 20 are integrally formed.It can by above-mentioned setting
To improve the overall structural strength and anti-deformation ability of locking fastening structure, to improve reliability.Optionally, fastener 10
It is made with locating part 20 of 3D printing, pore structure and other labyrinths out easy to process in this way.
In the present embodiment, fastener 10 has operating cavity 12, has confined planes, operating cavity 12 on the inner wall of operating cavity 12
For penetrating a part of operational instrument 40, confined planes, which are used to limit with operational instrument 40, to be cooperated, to pass through 40 turns of operational instrument
Dynamic fastener 10；Locating part 20 has avoid holes 21, and avoid holes 21 are connected to operating cavity 12.By the way that avoid holes 21 are arranged, can keep away
Exempt from locating part 20 and stop operating cavity 12, in order to which tool protrudes into.
As shown in Figure 1 and Figure 4, locking fastening structure further include: plug 30, plug 30 removably connect with locating part 20
It connects, plug 30 is for blocking avoid holes 21.By the way that plug 30 is arranged, it can prevent pulp cavity and external soft tissue inside bone tissue from connecting
It is logical.Plug 30 is the entity structure being fabricated by titanium alloy, settable " one " type, " ten " type, " rice " type, interior six on plug 30
The structures such as side, outer six side, to meet the precession under external torque effect, screw out plug 30.
In the present embodiment, the inner wall of avoid holes 21 has internal screw thread 22, has the second outer spiral shell on the outer peripheral surface of plug 30
Line 31, the second external screw thread 31 are cooperatively connected with internal screw thread 22.The mode that can be connected through a screw thread in this way conveniently realizes plug 30
With the connection or disassembly of locating part 20.Optionally, plug 30 is entity structure, and structural strength can be improved in this way.
In the present embodiment, plug 30 has handle hole 32, has confined planes on the inner wall of handle hole 32, and handle hole 32 is used
In a part for penetrating operational instrument 40, the confined planes of handle hole 32, which are used to limit with operational instrument 40, to be cooperated, to pass through operation
Tool 40 rotates plug 30.A part that handle hole 32 is used to penetrate operational instrument 40 can be understood as handle hole 32 for for behaviour
A part of structure for making tool 40 penetrates into inside handle hole 32.A part of structure of operational instrument 40 penetrates into handle hole 32
Behind portion, confined planes and operational instrument 40 limit of handle hole 32 cooperate, the circumferentially opposed position of such plug 30 and operational instrument 40
Fixation is set, plug 30 can be turned by then rotating operational instrument 40, to realize the installation and removal of plug 30.Optionally, it operates
The radial section in hole 32 is regular hexagon, and the radial section for the part that operational instrument 40 and handle hole 32 cooperate also is positive six sides
Shape, in this way convenient for grafting and the reliable limit of realization.
As shown in fig. 6, another embodiment of the present invention provides a kind of clamp device, clamp device includes locking fastening knot
Structure and operational instrument 40, locking fastening structure are the above-mentioned locking fastening structure provided, and operational instrument 40 includes sequentially connected
Handle 41, connecting rod 42 and operation portion, at least part of operation portion is for penetrating locking fastening structure to rotate locking fastening
Structure.When in use, simultaneously rotational handle 41 is held, then torque can be transmitted by connecting rod 42 and operation portion, so that rotation is anti-
Fastener 10 or plug 30 in elastic fixing structure.
Optionally, operation portion includes first body of rod 43 interconnected and second body of rod 44, wherein first body of rod 43 and company
Extension bar 42 connects, and the radial dimension of first body of rod 43 is greater than the radial dimension of second body of rod 44, and first body of rod 43 is tight for penetrating
Cooperate in the operating cavity 12 of firmware 10 and with the confined planes of operating cavity 12, to rotate fastener 10, second body of rod 44 is for penetrating
Cooperate in the handle hole 32 of plug 30 and with the confined planes of handle hole 32 to rotate plug 30.By above-mentioned setting, can be used same
One operational instrument 40 rotates fastener 10 and plug 30, no replacement is required in this way tool, convenient for operating, and can reduce tool
Quantity reduces manufacturing cost.Optionally, the radial section of first body of rod 43 and second body of rod 44 is regular hexagon.Connecting rod
42, first body of rod 43 and second body of rod 44 are structure as a whole, and intensity can be improved in this way, convenient for manufacture.
It applies the technical scheme of the present invention, fastener 10 is provided in locking fastening structure, fastener 10 is porous
Column structure, there is on the outer peripheral surface of fastener 10 first external screw thread 11, at least part of fastener 10 is screwed into bone
In tissue, the prostheses such as steel plate can be fixed on bone tissue by the locking fastening structure in this way.Since fastener 10 is porous
The column structure of gap, after fastener 10 is screwed into bone tissue, bone tissue can be grown into multiple holes of fastener 10, in this way
Fastener 10 can be achieved to merge and be reliably connected with the biology of bone tissue, to prevent patient from fastener 10 being caused to return in activity
Dynamic problem is unscrewed, the reliability that prosthese is chronically implanted is improved.
Moreover, by setting operating cavity 12, convenient for rotation fastener 10 while, can out of operating cavity 12 directly from
To multiple holes of fastener 10, so as to observe the case where bone tissue grows into multiple holes.Optionally, the diameter of operating cavity 12
It is regular hexagon to section, the radial section for the part that operational instrument 40 and operating cavity 12 cooperate also is regular hexagon, so just
In grafting and realize reliable limit.By the way that plug 30 is arranged, pulp cavity inside bone tissue can be prevented to be connected to external soft tissue.Pass through
Same operational instrument 40 can be used to rotate fastener 10 and plug 30 for aforesaid operations tool 40, no replacement is required in this way tool, just
In operation, and number of tools can be reduced, reduce manufacturing cost.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of locking fastening structure characterized by comprising
Fastener (10), the fastener (10) are mushy column structure, are had on the outer peripheral surface of the fastener (10)
First external screw thread (11), at least part of the fastener (10) is screwed into bone tissue.
2. locking fastening structure according to claim 1, which is characterized in that the fastener (10) has operating cavity
(12), there are confined planes, the operating cavity (12) is for penetrating the one of operational instrument (40) on the inner wall of the operating cavity (12)
Part, the confined planes of the operating cavity (12), which are used to limit with the operational instrument (40), to be cooperated, to pass through the operational instrument
(40) fastener (10) is rotated.
3. locking fastening structure according to claim 1, which is characterized in that the fastener (10) has opposite first
End and second end, for the first end for penetrating in the bone tissue, the first end is pyramidal structure.
4. locking fastening structure according to claim 1, which is characterized in that the fastener (10) has opposite first
End and second end, the first end is for penetrating in the bone tissue, the locking fastening structure further include:
Locating part (20), is arranged the second end in the fastener (10), and the radial dimension of the locating part (20) is greater than described
The radial dimension of fastener (10).
5. locking fastening structure according to claim 4, which is characterized in that the locating part (20) is entity structure, institute
Fastener (10) and the locating part (20) are stated to be integrally formed.
6. locking fastening structure according to claim 4, which is characterized in that
The fastener (10) has operating cavity (12), has confined planes, the operating cavity on the inner wall of the operating cavity (12)
(12) for penetrating a part of operational instrument (40), the confined planes, which are used to limit with the operational instrument (40), to be cooperated, with
The fastener (10) is rotated by the operational instrument (40)；
The locating part (20) has avoid holes (21), and the avoid holes (21) are connected to the operating cavity (12).
7. locking fastening structure according to claim 6, which is characterized in that the locking fastening structure further include:
Plug (30), the plug (30) removably connect with the locating part (20), and the plug (30) is for blocking institute
State avoid holes (21).
8. locking fastening structure according to claim 7, which is characterized in that the inner wall of the avoid holes (21) has interior spiral shell
Line (22) has the second external screw thread (31) on the outer peripheral surface of the plug (30), second external screw thread (31) and the interior spiral shell
Line (22) is cooperatively connected.
9. locking fastening structure according to claim 8, which is characterized in that the plug (30) has handle hole (32),
There are confined planes on the inner wall of the handle hole (32), the handle hole (32) is used to penetrate a part of operational instrument (40),
The confined planes of the handle hole (32), which are used to limit with the operational instrument (40), to be cooperated, to be turned by the operational instrument (40)
Move the plug (30).
10. a kind of clamp device, which is characterized in that the clamp device includes locking fastening structure and operational instrument (40), institute
Locking fastening structure locking fastening structure as claimed in any one of claims 1 to 9 is stated, the operational instrument (40) includes suitable
Handle (41), connecting rod (42) and the operation portion of secondary connection, at least part of the operation portion for penetrate it is described prevent it is elastic
Fixing structure is to rotate the locking fastening structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910844467.7A CN110448372A (en) | 2019-09-06 | 2019-09-06 | Locking fastening structure and clamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910844467.7A CN110448372A (en) | 2019-09-06 | 2019-09-06 | Locking fastening structure and clamp device |
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| Publication Number | Publication Date |
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| CN110448372A true CN110448372A (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910844467.7A Pending CN110448372A (en) | 2019-09-06 | 2019-09-06 | Locking fastening structure and clamp device |
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| CN (1) | CN110448372A (en) |
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| CN206867271U (en) * | 2017-01-13 | 2018-01-12 | 王远政 | The split type pedicle screw assemblies of lower cervical anterior |
| US20180325570A1 (en) * | 2017-05-12 | 2018-11-15 | Cutting Edge Spine Llc | Implants for tissue fixation and fusion |
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| CN109938821A (en) * | 2019-03-29 | 2019-06-28 | 中南大学湘雅医院 | Just the umbrella bone blot dismantled |
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