CN208822934U - Minimally invasive bone cement pedicle screw - Google Patents
Minimally invasive bone cement pedicle screw Download PDFInfo
- Publication number
- CN208822934U CN208822934U CN201721841800.1U CN201721841800U CN208822934U CN 208822934 U CN208822934 U CN 208822934U CN 201721841800 U CN201721841800 U CN 201721841800U CN 208822934 U CN208822934 U CN 208822934U
- Authority
- CN
- China
- Prior art keywords
- nail
- ball
- living
- bone cement
- head
- 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.)
- Expired - Fee Related
Links
- 239000002639 bone cement Substances 0.000 title claims abstract description 23
- 241001079814 Symphyotrichum pilosum Species 0.000 claims abstract description 31
- 235000004224 Typha angustifolia Nutrition 0.000 claims abstract description 31
- 208000001132 Osteoporosis Diseases 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
Abstract
A kind of minimally invasive bone cement pedicle screw, comprising: head, nail pressing washer, ball nail ontology, nail stick and jackscrew living；Wherein ball nail ontology includes nail rod and bulb again, drift bolt hole is coaxially disposed in head living, and head lower end setting living drift bolt hole is open, and by stretching out in the opening of drift bolt hole, the bulb that ball follows closely tail end is arranged in drift bolt hole the nail rod of ball nail ontology；External screw thread is set in the nail rod of ball nail ontology, nail rod and bulb are respectively hollow structure, and inside forms the guide pinhole for running through nail rod and bulb；Multiple fill orifices are set in the nail rod of ball nail ontology, fill orifice penetrates through nail rod, guide pinhole is connected with the outside of nail rod.Bone cement can be injected into centrum in the course of surgery by fill orifice, improve centrum intensity, so as to which pedicle screw and centrum to be fixedly secured, be particularly suitable for the gerontal patient with osteoporosis.
Description
Technical field
The utility model relates to the technical fields of orthopedic medical device, specifically a kind of to improve the minimally invasive of approach stability
Bone cement pedicle screw.
Background technique
Currently, backbone non-fusion technology is had been applied in recent years on treatment spinal lesion, have to backbone
It damages small, maintains the mobility and stability of backbone, the biomechanics characteristic of reconstruction of intervertebral disc prevents and mitigate adjacent segment
The advantages that regression of interverbebral disc accelerates.And the pedicle nail used in spinal operation usually mainly includes that head and ball living follow closely this
Body, ball are followed closely ontology and can be fixedly connected in fixed symmetrical angle with head living, can also be connected to become ten thousand by bulb and ball cup
To screw, Universal screw nail can need to adjust the connection angle between ball nail ontology and head living according to operation.Existing pedicle of vertebral arch
Screw needs to guarantee that it is fixedly secured with centrum when in use, and otherwise surgical effect cannot guarantee, thus existing pedicle of vertebral arch
When screw is applied with old sufferers of osteoporosis face, the difficulty of operation often will increase, or even have the risk of operative failure, to suffer from
Person causes biggish pain, also increases the difficulty that patient restores.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of minimally invasive bone cement pedicles of vertebral arch for improving approach stability
Screw.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique:
The minimally invasive bone cement pedicle screw of the utility model, comprising: head, nail pressing washer, ball nail ontology, nail stick and top living
Silk；Wherein ball nail ontology includes nail rod and bulb again, drift bolt hole is coaxially disposed in head living, and head lower end setting living drift bolt hole is opened
Mouthful, by stretching out in the opening of drift bolt hole, the bulb that ball follows closely tail end is arranged in drift bolt hole the nail rod of ball nail ontology；The nail of ball nail ontology
External screw thread is set on bar, and nail rod and bulb are respectively hollow structure, and inside forms the guide pinhole for running through nail rod and bulb；In head living
Nail pressing washer, nail stick and jackscrew are set gradually from the bottom to top above interior ball nail ontology, and jackscrew is connect with head thread living, passes through pressure
Ball nail is fixed by washer, nail stick and jackscrew, and multiple fill orifices, fill orifice perforation nail are arranged in the nail rod of ball nail ontology
Guide pinhole is connected by bar with the outside of nail rod.
The utility model can also use following technical measures:
The central axis of each fill orifice and the central axis of guide pinhole are coplanar.
Each fill orifice central axis is mutually perpendicular to guide pinhole central axis.
Each fill orifice that the central axis of the central axis and guide pinhole is coplanar simultaneously is interspersed.
Extension rod is arranged in the upper ends of the work head.
The lower end of the work head is set as unilateral inclined-plane, and drift bolt hole opening is arranged on inclined-plane.
The utility model has the advantages and positive effects of:
In the minimally invasive bone cement pedicle screw of the utility model, multiple perforation nail rods are set in the nail rod of ball nail ontology
Guide pinhole is connected by fill orifice, fill orifice with the outside of nail rod, can infuse bone cement by fill orifice in the course of surgery
Enter into centrum, improve centrum intensity, so as to which pedicle screw and centrum to be fixedly secured, is particularly suitable for sclerotin
Loose gerontal patient.In addition the lower section of head living uses inclined-plane, is also convenient for injecting bone cement into angle appropriate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the minimally invasive bone cement pedicle screw of the utility model.
Specific embodiment
The technical solution of the utility model is described in detail below by way of the drawings and specific embodiments.
As shown in Figure 1, the minimally invasive bone cement pedicle screw of the utility model, comprising: head 1 of living, nail pressing washer 2, ball nail
Ontology 3, nail stick 4 and jackscrew 5；Wherein ball nail ontology includes nail rod and bulb again, drift bolt hole is coaxially disposed in head living, and under head living
End setting drift bolt hole is open, and by stretching out in the opening of drift bolt hole, the bulb that ball follows closely tail end is arranged in drift bolt hole the nail rod of ball nail ontology
It is interior；External screw thread is set in the nail rod of ball nail ontology, nail rod and bulb are respectively hollow structure, and inside, which is formed, runs through nail rod and bulb
Guide pinhole 6；Nail pressing washer, nail stick and jackscrew, jackscrew and work are set gradually from the bottom to top above the ball nail ontology in head living
Ball nail is fixed by nail pressing washer, nail stick and jackscrew, multiple perfusions is arranged in the nail rod of ball nail ontology by head thread connection
Hole 7, fill orifice penetrate through nail rod, guide pinhole are connected with the outside of nail rod.
The central axis of each fill orifice and the central axis of guide pinhole are coplanar.
Each fill orifice central axis is mutually perpendicular to guide pinhole central axis, and position when convenient for bone cement injection is controlled.
The central axis of central axis and guide pinhole each fill orifice coplanar simultaneously is interspersed, to guarantee that bone cement is injecting
When effect it is more uniform, improve the consolidation effect of bone cement.
Extension rod is arranged in the upper ends of the work head, convenient for the injection of bone cement.
The lower end of the work head is set as unilateral inclined-plane, and drift bolt hole opening is arranged on inclined-plane.The utility model it is micro-
It creates in bone cement pedicle screw, head lower end living is set as bevel structure, and rotate ball nail can in biggish angular range,
To obtain bigger fixed angle, operating difficulty can be reduced when carrying out Minimally Invasive Surgery, reduce the pain of patient.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, it is any however, be not intended to limit the utility model although the utility model has been described by way of example and in terms of the preferred embodiments
Those skilled in the art are not departing within the scope of technical solutions of the utility model, certainly can be using in the technology disclosed
Appearance makes a little change or modification, becomes the equivalent embodiment of equivalent variations, but all without departing from technical solutions of the utility model
Content, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention,
It is all within the scope of the technical scheme of the utility model.
Claims (6)
1. a kind of minimally invasive bone cement pedicle screw, comprising: head, nail pressing washer, ball nail ontology, nail stick and jackscrew living；Wherein ball
Nail ontology includes nail rod and bulb again, drift bolt hole is coaxially disposed in head living, and head lower end setting living drift bolt hole is open, ball follows closely ontology
Nail rod by drift bolt hole opening in stretch out, ball follow closely tail end bulb be arranged in drift bolt hole；It is outer that ball follows closely setting in the nail rod of ontology
Screw thread, nail rod and bulb are respectively hollow structure, and inside forms the guide pinhole for running through nail rod and bulb；Ball in head living follows closely this
Nail pressing washer, nail stick and jackscrew are set gradually above body from the bottom to top, jackscrew is connect with head thread living, passes through nail pressing washer, nail
Ball nail is fixed by stick and jackscrew, it is characterised in that: multiple fill orifices, fill orifice perforation nail are arranged in the nail rod of ball nail ontology
Guide pinhole is connected by bar with the outside of nail rod.
2. minimally invasive bone cement pedicle screw according to claim 1, it is characterised in that: the central axis of each fill orifice with
The central axis of guide pinhole is coplanar.
3. minimally invasive bone cement pedicle screw according to claim 2, it is characterised in that: each fill orifice central axis and guide pin
Hole central axis is mutually perpendicular to.
4. minimally invasive bone cement pedicle screw according to claim 3, it is characterised in that: the center of central axis and guide pinhole
Axis each fill orifice coplanar simultaneously is interspersed.
5. minimally invasive bone cement pedicle screw according to claim 1 or 4, it is characterised in that: the upper ends of head living are set
Set extension rod.
6. minimally invasive bone cement pedicle screw according to claim 5, it is characterised in that: the lower end of head living is set as unilateral
Inclined-plane, drift bolt hole opening are arranged on inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841800.1U CN208822934U (en) | 2017-12-26 | 2017-12-26 | Minimally invasive bone cement pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841800.1U CN208822934U (en) | 2017-12-26 | 2017-12-26 | Minimally invasive bone cement pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208822934U true CN208822934U (en) | 2019-05-07 |
Family
ID=66303448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721841800.1U Expired - Fee Related CN208822934U (en) | 2017-12-26 | 2017-12-26 | Minimally invasive bone cement pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208822934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110613503A (en) * | 2019-08-29 | 2019-12-27 | 赵勤鹏 | Minimally invasive automatic rotary reduction osteoporosis fracture percutaneous pedicle screw |
| 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 |
-
2017
- 2017-12-26 CN CN201721841800.1U patent/CN208822934U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110613503A (en) * | 2019-08-29 | 2019-12-27 | 赵勤鹏 | Minimally invasive automatic rotary reduction osteoporosis fracture percutaneous pedicle screw |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |