CN110432967A - One kind being used for minimal invasion pedicle screw embedded device - Google Patents
One kind being used for minimal invasion pedicle screw embedded device Download PDFInfo
- Publication number
- CN110432967A CN110432967A CN201910789784.3A CN201910789784A CN110432967A CN 110432967 A CN110432967 A CN 110432967A CN 201910789784 A CN201910789784 A CN 201910789784A CN 110432967 A CN110432967 A CN 110432967A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- narrowed portion
- pedicle screw
- guide post
- embedded device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000009545 invasion Effects 0.000 title claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 description 10
- 238000001356 surgical procedure Methods 0.000 description 7
- 239000000284 extract Substances 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241000282376 Panthera tigris Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000003287 optical 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
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 238000003466 welding 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- 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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
-
- 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
-
- 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
-
- 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
- A61B17/8897—Guide wires or guide pins
-
- 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
- A61B17/90—Guides therefor
Landscapes
- 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)
- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of for minimal invasion pedicle screw embedded device, it is characterized in that it includes guide post (1), first sleeve (2) are arranged on guide post (1), second sleeve (3) are arranged in first sleeve (2), 3rd sleeve (4) are arranged on second sleeve (3), it is arranged with 4th sleeve (5) on 3rd sleeve (4), is equipped with a pair of of fin (6) in 4th sleeve (5) one end end.The configuration of the present invention is simple, it is easy to use, can fast and accurately for pedicle screw setting merging channel, effectively raise pedicle screw merging when success rate.
Description
Technical field:
The present invention relates to field of surgical, are specifically exactly a kind of for minimal invasion pedicle screw embedded device.
Background technique:
With the development of science and technology, the Thoracolumbar disk internal fixation operation amount in spinal surgery is also gradually increasing, spinal pedicle
Screw is fixed to be widely used in treatment fracture, tumour, infection or denaturation backbone.Screw used at present and traditional open surgery
Difference, usually hollow screw, and the screw of hollow design may will be greatly reduced its bending or fatigue strength.In vertebral column minimally invasive
Percutaneously nail is usually hollow nail used in fixed system in operation, and there are fixing intensity deficiencies, optical force for these hollow screws
The disadvantages of limited is measured, not as good as open surgery in terms of restoring to hurt vertebra height, correct spinal anterior approach.
The price of hollow nail is higher and specific purpose tool is needed when being placed in hollow nail, therefore is placed in the Operation Fee of hollow nail patient
With higher.Furthermore deficiency of the hollow nail on mechanics, the ability that angle resets are compared much smaller with common nails.This is postoperative
Also more solid nail is high for nursing expense.Hollow screw is limited to technological level and quality of materials, the limited strength compared with solid screw.Especially
It limits its use when Upper thoracic pedicle of vertebral arch is thinner.
Therefore, designing a kind of solid pedicle screw embedded device in minimal invasion operation becomes urgent demand.
Summary of the invention:
The present invention is exactly in order to overcome the shortcomings in the prior art, to provide a kind of for minimal invasion pedicle screw merging dress
It sets.
The application the following technical schemes are provided:
One kind being used for minimal invasion pedicle screw embedded device, it is characterised in that: it includes guide post, and center is equipped on guide post
Through-hole is arranged with first sleeve on guide post, is arranged with second sleeve in first sleeve, third set is arranged in second sleeve
Cylinder, is arranged with 4th sleeve in 3rd sleeve, is equipped with a pair of of fin, the fin and the 4th in 4th sleeve upper end end
Sleeve is an integral structure, and is equipped with one group of pointed tooth in 4th sleeve lower end.
Based on the above technical solution, there can also be technical solution further below:
The lower end of the guide post is equipped with taper narrowed portion, the first narrowed portion is equipped in the lower end of first sleeve, second
The lower end of sleeve is equipped with the second narrowed portion, third narrowed portion is equipped in the lower end of 3rd sleeve, in the lower end of 4th sleeve
Portion is equipped with the 4th narrowed portion.
Also welding is equipped with reinforcing rib between the fin and 4th sleeve.
Invention advantage:
It is the configuration of the present invention is simple, easy to use, operating walk way fast and accurately can be provided to be placed in solid pedicle screw,
Enable solid pedicle screw to be used for the operation of minimal invasion, and then the quick recovery of operation greatly improved, reduces
The complication of operation reduces the operation wound of patient and the broken nail phenomenon of screw nail body, has important clinical meaning.
Detailed description of the invention:
Fig. 1 is stereoscopic schematic diagram of the present invention；
Fig. 2 is structural schematic diagram of the invention.
Specific embodiment:
As illustrated in fig. 1 and 2, a kind of to be used for minimal invasion pedicle screw embedded device, it includes guide post 1, in the lower end of guide post 1
End is equipped with the narrowed portion 1b for the cone being coaxially distributed, and is equipped with central through hole 1a along axis on guide post 1 and narrowed portion 1b.Institute
The guide post 1 stated is an integral structure with narrowed portion 1b.
It is inserted with first sleeve 2 on the outside of guide post 1, is equipped with the cone being coaxially distributed in 2 lower end of first sleeve
First narrowed portion 2a.The inner tube wall of first sleeve 2 is with the coaxial distribution of first sleeve 2 and axially through first sleeve 2 and first
Narrowed portion 2a.The horizontal cross-section of the inner tube wall of the first sleeve 2 is circle, and diameter is slightly larger than the diameter of guide post 1.So that the
One sleeve 2 and the first narrowed portion 2a can be set on 1 outer wall of guide post, and can axially be slidably reciprocated along guide post 1.Described
One sleeve 2 is an integral structure with the first narrowed portion 2a.
The length of the guide post 1 is greater than the length of first sleeve 2.So that after 2 sets of first sleeve on guide post 1, guide post 1
Upper end can stretch out the upper end of first sleeve 2, so that doctor extracts guide post 1 out.
It is inserted with second sleeve 3 on the outside of first sleeve 2, the circular cone being coaxially distributed is equipped in 3 lower end of second sleeve
Second narrowed portion 3a of shape.The coaxial distribution of the inner tube wall of second sleeve 3 and second sleeve 3 and axially through second sleeve 3 with
Second narrowed portion 3a.The horizontal cross-section of the inner tube wall of second sleeve 3 is the diameter that round and diameter is slightly larger than first sleeve 2.Make
Obtaining second sleeve 3 and the second narrowed portion 3a can be set on 2 outer wall of first sleeve, and can be axial next along first sleeve 2
Return sliding.The second sleeve 3 is an integral structure with the second narrowed portion 3a.
The length of the first sleeve 2 is greater than the length of second sleeve 3.So that 3 sets of second sleeve in first sleeve 2
Afterwards, the upper end of first sleeve 2 can stretch out the upper end of second sleeve 3, so that doctor can extract first set out out of second sleeve 3
Cylinder 2.
It is inserted with 3rd sleeve 4 on the outside of second sleeve 3, the circular cone being coaxially distributed is equipped in 4 lower end of 3rd sleeve
The third narrowed portion 4a of shape.The coaxial distribution of the inner tube wall of 3rd sleeve 4 and 3rd sleeve 4 and axially through 3rd sleeve 4 with
Third narrowed portion 4a.The horizontal cross-section of the inner tube wall of 3rd sleeve 4 is circle, and the diameter of 4 inner tube wall of 3rd sleeve is slightly larger than the
The diameter of two sleeves 3.3rd sleeve 4 and third narrowed portion 4a are set on 3 outer wall of second sleeve, and can edge
Second sleeve 3 is axial to slidably reciprocate.The 3rd sleeve 4 is an integral structure with third narrowed portion 4a.
The length of the second sleeve 3 is greater than the length of 3rd sleeve 4.So that after 4 sets of 3rd sleeve in second sleeve 3
The upper end of second sleeve 3 can stretch out the upper end of 3rd sleeve 4, so that doctor can extract second sleeve out out of 3rd sleeve 4
3。
It is inserted with 4th sleeve 5 on the outside of 3rd sleeve 4, the circular cone being coaxially distributed is equipped in 5 lower end of 4th sleeve
4th narrowed portion 5a of shape.The coaxial distribution of the inner tube wall of 4th sleeve 5 and 4th sleeve 5 and axially through 4th sleeve 5 with
4th narrowed portion 5a.The horizontal cross-section of the inner tube wall of the 4th sleeve 5 is circle, and the inner tube wall diameter of 4th sleeve 5 is bigger
In the diameter of 3rd sleeve 4.4th sleeve 5 and the 4th narrowed portion 5a are set on 4 outer wall of 3rd sleeve, and can
Axially to slidably reciprocate along 3rd sleeve 4.
The pointed tooth 5b of one group of triangle is evenly equipped on the lower end of the 4th narrowed portion 5a.In 5 upper end end of 4th sleeve
Fin 6 equipped with a pair of of horizontal distribution.Reinforcing rib 7 is additionally provided between every fin 6 and the outer wall of 4th sleeve 5.Described
Reinforcing rib 7 is triangular structure of right angle, and hook and the fin 6 of the reinforcing rib 7 are fixedly welded, the stock and the 4th of the reinforcing rib 7
The outer wall of sleeve 5 is fixedly welded, and the string of the reinforcing rib 7 is the arc 7a of indent.The 4th sleeve 5 and the 4th narrowed portion 5a
And pointed tooth 5b is an integral structure.
The length of the 3rd sleeve 4 is greater than the length of 4th sleeve 5.So that after 5 sets of 4th sleeve in 3rd sleeve 4
The upper end of 3rd sleeve 4 can stretch out the upper end of 4th sleeve 5, so that doctor can extract 3rd sleeve out out of 4th sleeve 5
4。
Use process:
It uses trochar in the prior art first at the time of surgery, patient body is punctured, so that needle core reaches vertebral arch
Root, and casing is also together in insertion body, then extracts needle core out, it is then that seal wire is inserted into the patient from one end casing, and it is inserted into vertebra
Surgery location is marked in nut, finally again removes casing.The trochar includes needle core and the casing that is set in outside needle core,
Its structure is chatted since it is that the prior art is therefore no longer superfluous here.
Then, it is flared at the skin openings stayed with opener to removal casing using operation in the prior art.And
Seal wire upper end is inserted into again from the central through hole of guide post afterwards, so that guide post is through on seal wire, then narrowed portion is downwardly into trouble
In person's body, until narrowed portion lower end reaches pedicle of vertebral arch, the first, second, third and fourth sleeve is then worn step by step outside guide post, so that the
One, the lower end of two, three, four narrowed portion reaches pedicle of vertebral arch.(the first, second, third and fourth conical narrowed portion is also convenient for insertion skin
Skin enters patient's body)
Since the diameter of the first, second, third and fourth sleeve is gradually increased, so by wearing the first, second, third and fourth sleeve step by step
The soft tissue of body is expanded.After the 4th narrowed portion lower end reaches pedicle of vertebral arch, hold 4th sleeve, tiger's jaw portion and arc plus
The string of strengthening tendons 7 contacts, thus 4th sleeve of holding with a firm grip.It reuses hand hammer and taps fin, the pointed tooth of the 4th narrowed portion lower end is followed closely
Enter on the sclerotin of pedicle of vertebral arch.
It then extracts seal wire, guide post, the first, second and third sleeve out step by step from inside to outside, is then solid state by shank of screw
Pedicle screw is inserted into the inner tube wall of 4th sleeve, and at this moment pedicle screw can be in the guidance of the inner tube wall of 4th sleeve
Under, surgery location is fallen directly on, then by specific purpose tool, the pedicle screw that shank of screw is solid state is screwed in into vertebral arch
Root.
By the technical program, shank of screw is allowed to be that the pedicle screw of solid state applies in Minimally Invasive Surgery,
Because the application provides the accurate operating walk way for reaching surgery location for shank of screw for the pedicle screw of solid state.Due to
Shank of screw is that the pedicle screw intensity of solid state is larger, because that can follow closely the broken nail phenomenon of body with screw, reduces the operation of patient
Wound, reduces the complication of operation, so that the quick recovery speed of operation greatly improved.
Since the guidance of the inner tube wall of 4th sleeve also avoids that pedicle screw is revolved to askew situation generation, pole in operation
The big success rate for promoting pedicle screw merging, shortens operating time, the operating difficulty for reducing doctor, refers to perform the operation
Success rate.
Claims (3)
1. one kind is used for minimal invasion pedicle screw embedded device, it is characterised in that: it includes guide post (1), on guide post (1)
It equipped with central through hole (1a), is arranged on guide post (1) first sleeve (2), second sleeve (3) is arranged in first sleeve (2),
It is arranged with 3rd sleeve (4) on second sleeve (3), 4th sleeve (5) are arranged on 3rd sleeve (4), in 4th sleeve
(5) upper end end is equipped with a pair of of fin (6), is equipped with one group of pointed tooth (7) in 4th sleeve (5) lower end.
2. according to claim 1 a kind of for minimal invasion pedicle screw embedded device, it is characterised in that: described
Guide post (1) lower end be equipped with taper narrowed portion (1b), the lower end of first sleeve (2) be equipped with the first narrowed portion (2a),
It is equipped with the second narrowed portion (3a) in the lower end of second sleeve (3), is equipped with third narrowed portion in the lower end of 3rd sleeve (4)
(4a) is equipped with the 4th narrowed portion (5a) in the lower end of 4th sleeve (5).
3. according to claim 1 a kind of for minimal invasion pedicle screw embedded device, it is characterised in that: in institute
Reinforcing rib (7) are additionally provided between the fin (6) stated and 4th sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789784.3A CN110432967A (en) | 2019-08-26 | 2019-08-26 | One kind being used for minimal invasion pedicle screw embedded device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910789784.3A CN110432967A (en) | 2019-08-26 | 2019-08-26 | One kind being used for minimal invasion pedicle screw embedded device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110432967A true CN110432967A (en) | 2019-11-12 |
Family
ID=68437592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910789784.3A Pending CN110432967A (en) | 2019-08-26 | 2019-08-26 | One kind being used for minimal invasion pedicle screw embedded device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110432967A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103784190A (en) * | 2012-10-31 | 2014-05-14 | 王国喜 | Minimally invasive composite self-tapping pedicle screw |
| CN103908330A (en) * | 2014-03-31 | 2014-07-09 | 广州医科大学附属第一医院 | Self-guide long-arm solid percutaneous pedicle screw |
| CN104783879A (en) * | 2015-05-12 | 2015-07-22 | 山东威高骨科材料股份有限公司 | Pedicle screw and bar pressing device |
| CN205493985U (en) * | 2016-02-06 | 2016-08-24 | 贺新宁 | Pedicle of vertebral arch screw general is put to bind and is put |
| CN210931756U (en) * | 2019-08-26 | 2020-07-07 | 牛国旗 | Be used for percutaneous wicresoft's pedicle of vertebral arch screw to put into device |
-
2019
- 2019-08-26 CN CN201910789784.3A patent/CN110432967A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103784190A (en) * | 2012-10-31 | 2014-05-14 | 王国喜 | Minimally invasive composite self-tapping pedicle screw |
| CN103908330A (en) * | 2014-03-31 | 2014-07-09 | 广州医科大学附属第一医院 | Self-guide long-arm solid percutaneous pedicle screw |
| CN104783879A (en) * | 2015-05-12 | 2015-07-22 | 山东威高骨科材料股份有限公司 | Pedicle screw and bar pressing device |
| CN205493985U (en) * | 2016-02-06 | 2016-08-24 | 贺新宁 | Pedicle of vertebral arch screw general is put to bind and is put |
| CN210931756U (en) * | 2019-08-26 | 2020-07-07 | 牛国旗 | Be used for percutaneous wicresoft's pedicle of vertebral arch screw to put into device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230157708A1 (en) | Intramedullary fixation system for management of pelvic and acetabular fractures | |
| TW201300076A (en) | Surgical awl | |
| CN102784434A (en) | Bone filler conveying sleeve | |
| CN110115611A (en) | A kind of operation tool for caput femoris necrosis bone grafting | |
| CN110432967A (en) | One kind being used for minimal invasion pedicle screw embedded device | |
| CN210931756U (en) | Be used for percutaneous wicresoft's pedicle of vertebral arch screw to put into device | |
| CN105852955A (en) | Bone grafting device realizing transpedicular intervertebral bone grafting | |
| CN110432963A (en) | A kind of pedicle of vertebral arch Minimally Invasive Surgery instrument | |
| CN203852417U (en) | Pedicle screw sleeve | |
| CN208371876U (en) | A kind of pedicle screw | |
| CN210931752U (en) | Pedicle of vertebral arch minimal access surgery apparatus | |
| CN205126396U (en) | Ilium bone screw | |
| CN211023059U (en) | Reset guide device | |
| CN208808574U (en) | A kind of preceding road hollow screw operation auxiliary Path Setup device of upper cervical spine | |
| RU144667U1 (en) | CONDUCTOR FOR INTRAMEDOLLARY ROD INTRODUCTION | |
| CN209048274U (en) | Vertebral body plastic operation bone cement injector | |
| CN208910458U (en) | The installation tool of bone cement screw | |
| CN202568348U (en) | Medical deformable guide needle | |
| CN206687761U (en) | A kind of LHC cannulated compression screws without a head | |
| CN206381262U (en) | A kind of intervertebral bone grafting apparatus | |
| CN214907852U (en) | Puncture needle device for percutaneous vertebroplasty positioning | |
| CN218739054U (en) | Depth-limiting plain grinding drill for assisting in implanting guide pin | |
| CN104665920A (en) | Tool used for preparing screw channels for pelvis crista iliaca external fixator | |
| CN213047231U (en) | Self-tapping minimally invasive percutaneous solid pedicle screw | |
| CN204520936U (en) | Inverted trapezoidal screw thread pedicle screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |