CN110478018A - Pedicle screw fixing means - Google Patents
Pedicle screw fixing means Download PDFInfo
- Publication number
- CN110478018A CN110478018A CN201910697791.0A CN201910697791A CN110478018A CN 110478018 A CN110478018 A CN 110478018A CN 201910697791 A CN201910697791 A CN 201910697791A CN 110478018 A CN110478018 A CN 110478018A
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- pedicle screw
- outer tube
- bone cement
- branch pipe
- centrum
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- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7061—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant for stabilising vertebrae or discs by improving the condition of their tissues, e.g. using implanted medication or fluid exchange
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
- A61B17/7098—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants wherein the implant is permeable or has openings, e.g. fenestrated screw
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8816—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
-
- 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
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses pedicle screw fixing means, comprising the following steps: step 1: pedicle screw first being hammered into centrum along into nail direction, step 2 completely: expanding several spherical centrum cavitys out in the centrum outside pedicle screw；Step 3: by one circle of pedicle screw rotation, several annular centrum cavitys are scanned out in the centrum outside pedicle screw；Step 4: outer tube general pipeline, outer tube branch pipe, pull rod and strut are extracted out pedicle screw simultaneously；Step 5: bone cement is injected into pedicle screw from centre bore, until bone cement fills corresponding annular centrum cavity through each bone cement diffusion hole, in bone cement gradually solidification process, constantly rotation pedicle screw, until the bone cement in annular centrum cavity forms the internal screw thread matched with the external screw thread of pedicle screw；After bone cement is fully cured, the fixation to pedicle screw is realized.The present invention has the advantages that pedicle screw good fixing effect and safe to use.
Description
Technical field
The present invention relates to column reconstruction treatment technology fields, and in particular to pedicle screw fixing means.
Background technique
Currently, in the dislocation of various unstable fractures, the retrogression of interverbebral disc, spondylolishesis and the ridge for the treatment of Thoracolumbar disk
After column in convex surgical procedure, need that the centrums one or more up and down of affected part are fixed.Pedicle of vertebral arch is generally used at present
The fixed upper hypocentrum of the mode that screw is matched with pitman, it may be assumed that first hammered into respectively in the two sides pedicle of vertebral arch of one centrum of affected part
Then a piece pedicle screw, another centrum of same treatment are again used two ipsilateral pedicle screws of two centrums respectively
A piece pitman is connected to a fixed, and multiple centrums are similarly handled；By will centrum carry out in it is fixed, to reach reset and steady
Fixed fracture, early stage carry out the purpose of functional training.But when needing to beat the centrum of pedicle screw with osteoporosis, vertebral arch
Root screw can be loosened, cut out or be exited after squeezing into centrum, lead to centrum fixation failure, cause the failure of operative treatment.
In recent years, doctor's Cement reinforces the fixation to pedicle screw, method is: setting in pedicle screw
A centre bore axially through pedicle screw is set, the half of pedicle screw is then squeezed into centrum, it then will expansion
Sacculus protrudes into centrum from the centre bore of pedicle screw, contrast agent is then injected into dilating sacculus, dilating sacculus is in contrast agent
Filling under can expand, to go out a cavity in sparse centrum cancellous bone internal expansion, then extract out in dilating sacculus
Contrast agent extracts sacculus out after sacculus contraction again, and then the other half by pedicle screw squeezes into centrum again, then by bone cement
It is pushed into centrum from the centre bore of pedicle screw, bone cement can enter to be expanded in centrum cavity out by dilating sacculus, thus complete
The fixation of pairs of pedicle screw.The above method has the disadvantage in that the relative pressure due to being formed inside centrum to sacculus
And it is uneven, dilating sacculus can be biased to the lesser place expansion of pressure in compression expansion process, so that dilating sacculus expands out
Space often deviate pedicle screw into nail direction, after causing pedicle screw to squeeze into centrum completely, cavity can be located at vertebra
The side of pedicle screw, after injecting bone cement into cavity, the bone cement in cavity can only be distributed in pedicle screw side, only
The side of pedicle screw can be fixed, the surrounding of pedicle screw will not be uniformly distributed in, cause pedicle screw solid
It is fixed insecure, it is poor to the fixed effect of pedicle screw, influence surgical result；And in dilating sacculus folk prescription to expanding
Cheng Zhong, dilating sacculus may damage pedicle of vertebral arch peripheral nerve, influence safety in utilization.
Summary of the invention
The object of the present invention is to provide a kind of safe to use, to the pedicle screw of pedicle screw good fixing effect
Fixing means.
To achieve the above object, present invention employs following technical solutions: pedicle screw fixing means, including following step
It is rapid:
Step 1: pedicle screw is first hammered into centrum along into nail direction completely, the structure of the pedicle screw includes: vertebral arch
Root screw body is provided with centre bore in the axial centre of pedicle screw ontology, in the front end side wall of pedicle screw ontology
It is above circumferentially arranged to have several bone cement diffusion holes being connected with centre bore, it is total that an outer tube is movably set in centre bore
Pipe is provided with several coupled logical outer tube branch pipes in the front end of outer tube general pipeline, and outer tube branch pipe and bone cement diffusion hole are one by one
Corresponding, every outer tube branch pipe is inserted into corresponding bone cement diffusion hole, and the pipe end of every outer tube branch pipe is flexible elastic tube
End, the elastic pipe end of every outer tube branch pipe are circumferentially divided into several elastic tube valves, and activity is inserted with pull rod in outer tube general pipeline,
The front end of pull rod is provided with several struts, the strut of pull rod and the outer tube branch pipe of outer tube general pipeline correspond, and every of pull rod
Strut respectively be inserted into corresponding outer tube branch pipe and mutually fix with the outer end of all elastic pipe valve of corresponding outer tube branch pipe pipe end by activity；
Step 2: the pipe end of each outer tube branch pipe is then pushed outwardly by corresponding bone cement diffusion hole by outer tube general pipeline, is then led to
Crossing pull rod pulls each strut to correspond to shifting in outer tube branch pipe relatively, and synchronous drive corresponds to all bullets of outer tube branch pipe when moving in each strut
Property pipe valve outer end in move, make all elastic pipe valve of corresponding outer tube branch pipe while being bent outwardly expansion, thus in pedicle of vertebral arch screw
Several spherical centrum cavitys for being used to be perfused bone cement being distributed around pedicle screw 1 out are expanded in centrum outside nail；
Step 3: by one circle of pedicle screw rotation, all bullets for having expanded each outer tube branch pipe of prominent pedicle screw are driven
Property pipe valve around one circle of pedicle screw rotation, to scan out several circles in the centrum outside pedicle screw around pedicle of vertebral arch screw
The annular centrum cavity for being used to be perfused bone cement of nail distribution；
Step 4: and then push each strut to be corresponded to outside outer tube branch pipe relatively by pull rod again and move, synchronous drive when being moved outside each strut
It is moved outside the outer end of all elastic pipe valve of corresponding outer tube branch pipe, until all elastic pipe valve of corresponding outer tube branch pipe returns back to simultaneously
Bone cement diffusion hole can be retracted collapses straight state, then extracts outer tube general pipeline, outer tube branch pipe, pull rod and strut out vertebral arch simultaneously again
Root screw；
Step 5: bone cement is injected into pedicle screw from centre bore, until bone cement fills respectively through each bone cement diffusion hole
Corresponding annular centrum cavity constantly rotates pedicle screw in bone cement gradually solidification process, until annular centrum cavity
Interior bone cement forms the internal screw thread matched with the external screw thread of pedicle screw；After bone cement is fully cured, pass through bone water
Mud realizes the fixation to pedicle screw.
Further, pedicle screw fixing means above-mentioned, in which: outer tube general pipeline and each outer tube branch pipe are integrally formed,
Pull rod and each strut are integrally formed.
Further, pedicle screw fixing means above-mentioned, in which: the hole of the bone cement diffusion hole in pedicle screw
Diameter is in be gradually reduced setting from the inside to the outside.
Through the implementation of the above technical solution, the beneficial effects of the present invention are: (1) can guarantee that bone cement is uniformly distributed in vertebra
Pedicle screw surrounding can carry out pedicle screw effectively to fix, to the good fixing effect of pedicle screw, improve operative treatment
Effect, and due to elastic tube valve will not folk prescription to expansion, effectively avoid elastic tube valve damaged in expansion process pedicle of vertebral arch week
Nerve is enclosed, safety in utilization is improved；(2) several circles are scanned out in the centrum outside pedicle screw around pedicle screw point
The annular centrum cavity for being used to be perfused bone cement of cloth, increases bone cement irrigating region, increases bone cement and pedicle of vertebral arch screw
The contact area of nail improves the fixed effect to pedicle screw；(3) due to bone cement form it is outer with pedicle screw
The internal screw thread that screw thread matches in this way convenient for freely taking out pedicle screw, more convenient operation, while reducing and hurting to patient centrum
Evil, further improves surgical result.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pedicle screw in pedicle screw fixing means of the present invention.
Fig. 2 is to pump the structural schematic diagram after outer tube general pipeline, outer tube branch pipe, pull rod and strut in Fig. 1.
Fig. 3 is the structural schematic diagram of outer tube general pipeline shown in Fig. 1, outer tube branch pipe, pull rod and strut.
Fig. 4 is the use state diagram of Fig. 1.
Fig. 5 is to pump the use state diagram after outer tube general pipeline, outer tube branch pipe, pull rod and strut in Fig. 4.
Specific embodiment
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, the pedicle screw fixing means, comprising the following steps: including
Following steps:
Step 1: pedicle screw is first hammered into centrum along into nail direction completely, the structure of the pedicle screw 1 includes: vertebra
Pedicle screw ontology, the axial centre of pedicle screw ontology are provided with centre bore 2, in the front end side wall of pedicle screw ontology
It is above circumferentially arranged to have several bone cement diffusion holes 3 being connected with centre bore 2, it is movably set in centre bore 2 outside one
Guan general pipeline 4, the front end of outer tube general pipeline 4 are provided with several coupled logical outer tube branch pipes 5, outer tube branch pipe 5 and bone cement expand
Hole 3 is dissipated to correspond, every outer tube branch pipe 5 is inserted into corresponding bone cement diffusion hole 3, the pipe end of every outer tube branch pipe 5 be with
The elastic pipe end of elasticity, the elastic pipe end of every outer tube branch pipe 5 is circumferentially divided into several elastic tube valves 51, in outer tube general pipeline
Activity is inserted with pull rod 6 in 4, and the front end of pull rod 6 is provided with several struts 7, the strut 7 of pull rod 6 and the outer tube branch of outer tube general pipeline 4
Pipe 5 corresponds, the every strut 7 of pull rod 6 respectively activity be inserted into corresponding outer tube branch pipe 5 and with corresponding outer tube branch pipe pipe end
The outer end of all elastic pipe valve 51 is mutually fixed；
Step 2: the pipe end of each outer tube branch pipe 5 is then pushed outwardly by corresponding bone cement diffusion hole 3 by outer tube general pipeline 4, then
It pulls each strut 7 to correspond to relatively in outer tube branch pipe 5 by pull rod 6 to move, synchronous drive corresponds to outer tube branch pipe 5 when moving in each strut 7
All elastic pipe valve 51 outer end in move, make all elastic pipe valve 51 of corresponding outer tube branch pipe 5 while being bent outwardly expansion, from
And several balls for being used to be perfused bone cement being distributed around pedicle screw 1 out are expanded in the centrum 8 outside pedicle screw
Shape centrum cavity；
Step 3: by one circle of pedicle screw rotation, all bullets for having expanded each outer tube branch pipe 5 of prominent pedicle screw are driven
Property pipe valve 51 around one circle of the rotation of pedicle screw 1, the spherical centrum cavity being located on same level reference circle is cascaded,
To scan out several circles in the centrum 8 outside pedicle screw 1 around what pedicle screw 1 was distributed it is used to that bone cement to be perfused
Annular centrum cavity 9；
Step 4: and then push each strut 7 to be corresponded to outside outer tube branch pipe 5 relatively by pull rod 6 again and move, it is synchronous when being moved outside each strut 7
It drives and is moved outside the outer end of all elastic pipe valve 51 of corresponding outer tube branch pipe 5, until all elastic pipe valve 51 of corresponding outer tube branch pipe 5
Return back to simultaneously can retract bone cement diffusion hole 3 collapse straight state, then again by outer tube general pipeline 4, outer tube branch pipe 5, pull rod 6 and branch
Bar 7 extracts pedicle screw 1 out simultaneously；
Step 5: bone cement is injected into pedicle screw from centre bore 2, until bone cement fills respectively through each bone cement diffusion hole 4
Self-corresponding annular centrum cavity 9 constantly rotates pedicle screw 1 in bone cement gradually solidification process, until annular centrum
Bone cement in cavity 9 forms the internal screw thread matched with the external screw thread of pedicle screw；After bone cement is fully cured, pass through
Bone cement realizes the fixation to pedicle screw.
In the present embodiment, outer tube general pipeline 4 and each outer tube branch pipe 5 are integrally formed, and pull rod 6 and each strut 7 are integrally formed, this
Safety in utilization can be improved in sample；In the present embodiment, the aperture of bone cement diffusion hole 3 is in be gradually reduced setting from the inside to the outside,
During by bone cement diffusion hole 3, bone cement meeting flow velocity will increase bone cement in this way, to make bone cement more quickly
Each centrum cavity is injected, procedure efficiency is improved；
The invention has the advantages that (1) can guarantee that bone cement is uniformly distributed in pedicle screw surrounding, pedicle screw can be carried out
It is effectively fixed, to the good fixing effect of pedicle screw, improve surgical result, and due to elastic tube valve will not folk prescription to
Expansion, effectively avoids elastic tube valve from damaging pedicle of vertebral arch peripheral nerve in expansion process, improves safety in utilization；(2) in vertebra
The annular centrum for bone cement to be perfused that several circles are scanned out in centrum outside pedicle screw around pedicle screw distribution is empty
Chamber increases bone cement irrigating region, increases the contact area of bone cement and pedicle screw, improves to pedicle screw
Fixed effect；(3) since bone cement forms the internal screw thread matched with the external screw thread of pedicle screw, in this way convenient for freely
Pedicle screw, more convenient operation are taken out, while reducing and patient centrum is injured, further improves surgical result.
Claims (3)
1. pedicle screw fixing means, it is characterised in that: the following steps are included:
Step 1: pedicle screw is first hammered into centrum along into nail direction completely, the structure of the pedicle screw includes: vertebral arch
Root screw body is provided with centre bore in the axial centre of pedicle screw ontology, in the front end side wall of pedicle screw ontology
It is above circumferentially arranged to have several bone cement diffusion holes being connected with centre bore, it is total that an outer tube is movably set in centre bore
Pipe is provided with several coupled logical outer tube branch pipes in the front end of outer tube general pipeline, and outer tube branch pipe and bone cement diffusion hole are one by one
Corresponding, every outer tube branch pipe is inserted into corresponding bone cement diffusion hole, and the pipe end of every outer tube branch pipe is flexible elastic tube
End, the elastic pipe end of every outer tube branch pipe are circumferentially divided into several elastic tube valves, and activity is inserted with pull rod in outer tube general pipeline,
The front end of pull rod is provided with several struts, the strut of pull rod and the outer tube branch pipe of outer tube general pipeline correspond, and every of pull rod
Strut respectively be inserted into corresponding outer tube branch pipe and mutually fix with the outer end of all elastic pipe valve of corresponding outer tube branch pipe pipe end by activity；
Step 2: the pipe end of each outer tube branch pipe is then pushed outwardly by corresponding bone cement diffusion hole by outer tube general pipeline, is then led to
Crossing pull rod pulls each strut to correspond to shifting in outer tube branch pipe relatively, and synchronous drive corresponds to all bullets of outer tube branch pipe when moving in each strut
Property pipe valve outer end in move, make all elastic pipe valve of corresponding outer tube branch pipe while being bent outwardly expansion, thus in pedicle of vertebral arch screw
Several spherical centrum cavitys for being used to be perfused bone cement around pedicle screw distribution out are expanded in centrum outside nail；
Step 3: by one circle of pedicle screw rotation, all bullets for having expanded each outer tube branch pipe of prominent pedicle screw are driven
Property pipe valve around one circle of pedicle screw rotation, to scan out several circles in the centrum outside pedicle screw around pedicle of vertebral arch screw
The annular centrum cavity for being used to be perfused bone cement of nail distribution；
Step 4: and then push each strut to be corresponded to outside outer tube branch pipe relatively by pull rod again and move, synchronous drive when being moved outside each strut
It is moved outside the outer end of all elastic pipe valve of corresponding outer tube branch pipe, until all elastic pipe valve of corresponding outer tube branch pipe returns back to simultaneously
Bone cement diffusion hole can be retracted collapses straight state, then extracts outer tube general pipeline, outer tube branch pipe, pull rod and strut out vertebral arch simultaneously again
Root screw；
Step 5: bone cement is injected into pedicle screw from centre bore, until bone cement fills respectively through each bone cement diffusion hole
Corresponding annular centrum cavity constantly rotates pedicle screw in bone cement gradually solidification process, until annular centrum cavity
Interior bone cement forms the internal screw thread matched with the external screw thread of pedicle screw；After bone cement is fully cured, pass through bone water
Mud realizes the fixation to pedicle screw.
2. pedicle screw fixing means according to claim 1, it is characterised in that: outer tube general pipeline and each outer tube branch pipe one
Body formed, pull rod and each strut are integrally formed.
3. pedicle screw fixing means according to claim 1 or 2, it is characterised in that: the bone water in pedicle screw
The aperture of mud diffusion hole is in be gradually reduced setting from the inside to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697791.0A CN110478018A (en) | 2019-07-30 | 2019-07-30 | Pedicle screw fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910697791.0A CN110478018A (en) | 2019-07-30 | 2019-07-30 | Pedicle screw fixing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110478018A true CN110478018A (en) | 2019-11-22 |
Family
ID=68548895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910697791.0A Pending CN110478018A (en) | 2019-07-30 | 2019-07-30 | Pedicle screw fixing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110478018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426218A (en) * | 2020-11-23 | 2021-03-02 | 常州集硕医疗器械有限公司 | Bone cement fixation device and method |
| CN113768597A (en) * | 2021-09-15 | 2021-12-10 | 山东第一医科大学附属省立医院(山东省立医院) | Vertebral pedicle screw capable of promoting bone regeneration based on degradable hydrogel rich in exosome |
-
2019
- 2019-07-30 CN CN201910697791.0A patent/CN110478018A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426218A (en) * | 2020-11-23 | 2021-03-02 | 常州集硕医疗器械有限公司 | Bone cement fixation device and method |
| CN113768597A (en) * | 2021-09-15 | 2021-12-10 | 山东第一医科大学附属省立医院(山东省立医院) | Vertebral pedicle screw capable of promoting bone regeneration based on degradable hydrogel rich in exosome |
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Application publication date: 20191122 |