CN109745113A - A kind of loose bone cement reinforcement pedicle screw of novel bone - Google Patents
A kind of loose bone cement reinforcement pedicle screw of novel bone Download PDFInfo
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- CN109745113A CN109745113A CN201910206331.3A CN201910206331A CN109745113A CN 109745113 A CN109745113 A CN 109745113A CN 201910206331 A CN201910206331 A CN 201910206331A CN 109745113 A CN109745113 A CN 109745113A
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Abstract
The invention discloses a kind of loose bone cements of novel bone to reinforce pedicle screw, including head of screw, auricle, circular hole, internal screw thread, cavity, U type slot, teeth, thread cavity bar, inner cavity, screw thread, disperse hole, screw tail and cutting blade；The peripheral teeth that the teeth design of head of screw of the invention connect head with installation tool are easy engagement, easy to connect；The cutting blade of screw tail can drill out centre bore on bone, and screw thread self tapping in centre bore, which squeezes, cuts out matched screw thread, realize self-drilling self-tapping screw；Bone cement can voluntarily be spilt into bone tissue by disperse hole under diffusion, it can be achieved that the effect reinforced.Have many advantages, such as that setting is reasonable, easy to use.
Description
Technical field
The present invention relates to pedicle screw instrumentation field, espespecially a kind of loose bone cement of novel bone reinforces pedicle of vertebral arch screw
Nail.
Background technique
With social population's aging progress faster, the health problem of elderly population increasingly causes the pass of medical personnel
Note.Senile osteoporosis is with Hip Fracture, compression fracture of vertabral body and fracture of distal radius and lumbar degenerative disease
Patient, due to centrum bone density reduce, bone trabecula is thinning, since its bone mass is very poor, clinically, this kind of fracture
After operative treatment, since loose sclerotin cannot provide enough holding powers to internal fixation device, Yi Faniunei is fixed to be loosened, moves back
Out and sclerotin is cut, leads to fixation failure, seriously affect therapeutic effect.And bone cement is to the reinforcing at once of pedicle screw
The fixation of sufferers of osteoporosis face row pedicle screw provides possibility.Have it is experimentally confirmed that being pulled out with pedicle nail after cement reaction
Intensity can increase by 49%~162% out, be entirely capable of reaching or even substantially exceeding former fixing intensity.
Summary of the invention
The purpose of the present invention is to provide a kind of loose bone cements of novel bone to reinforce pedicle screw.
To achieve the goals above, a kind of technical solution of the invention are as follows: loose bone cement reinforcement vertebra of novel bone
Pedicle screw includes head of screw, auricle, circular hole, internal screw thread, cavity, U type slot, teeth, thread cavity bar, inner cavity, screw thread, disperse
Hole, screw tail and cutting blade.
The top of the thread cavity bar is provided with head of screw, and the top of head of screw is provided with U type slot, head of screw it is upper
Portion is also provided with two panels auricle, and the inside of auricle is provided with internal screw thread, is also provided with circular hole on auricle, the head of screw
Lower part is provided with cavity, is provided with teeth in the lower chamber wall of head of screw.
Screw thread is provided on the thread cavity bar, the inside of thread cavity bar is provided with inner cavity, the top of inner cavity and screw
The cavity of head is connected to, and also interval is provided with disperse hole on the thread cavity bar between two screw threads.
The lower part of the thread cavity bar is provided with screw tail, and the bottom end of screw tail is provided with two panels cutting blade.
The working principle of the invention is: when work, clamping circular hole with clamping clip, the connection head of installation tool is placed in
In the lower lumen of head of screw, engage the peripheral teeth on installation tool connection head with the teeth of head of screw, firmly rotation peace
Holding tool, two panels cutting blade drill out centre bore on osteoporosis bone, screw thread self tapping in centre bore squeeze cut out it is matched
Screw thread, by head of screw screw in osteoporosis bone position, then pass through bottom of the high pressure injector by bone cement through cavity
It is injected into the interior intracavitary of thread cavity bar, bone cement voluntarily can spill into bone by the disperse hole on thread cavity bar under diffusion
In tissue, thread cavity bar 2 is firmly combined together, to realize with the bone of fixed position is needed after the completion of process of setting
Pitman is placed in U type slot by the effect of reinforcing with clamping clip, and is screwed into two panels for plug screw is fastened by holding plug screw device
In the internal screw thread of auricle, it can be fixedly connected with stick, to realize the steady fixation of pitman and more pedicle screws.
The peripheral teeth that the teeth design of head of screw of the invention connect head with installation tool are easy engagement, connection side
Just；The cutting blade of screw tail can drill out centre bore on bone, and screw thread self tapping in centre bore, which squeezes, cuts out matched screw thread,
Realize self-drilling self-tapping screw；Bone cement can voluntarily be spilt into bone tissue by disperse hole under diffusion, it can be achieved that reinforcing
Effect.Have many advantages, such as that setting is reasonable, easy to use.
Detailed description of the invention
The present invention is further described with reference to the accompanying drawings and detailed description.
Accompanying drawing 1 is the structural representation of the present invention；
Attached drawing 2 is cross-sectional view of the attached drawing 1 along the direction A-A.
In figure: 1, head of screw, 11, auricle, 111, circular hole, 112, internal screw thread, 12, cavity, 13, U type slot, 14, tooth
Tooth, 2, thread cavity bar, 21, inner cavity, 22, screw thread, 23, disperse hole, 3, screw tail, 31, cutting blade.
Specific embodiment
As shown in attached drawing, it includes head of screw 1, auricle that a kind of loose bone cement of novel bone of the present invention, which reinforces pedicle screw,
11, circular hole 111, internal screw thread 112, cavity 12, U type slot 13, teeth 14, thread cavity bar 2, inner cavity 21, screw thread 22, disperse hole
23, screw tail 3 and cutting blade 31.
The top of the thread cavity bar 2 is provided with head of screw 1, and the top of head of screw 1 is provided with U type slot 13, screw
First 1 top is also provided with two panels auricle 11, and the inside of auricle 11 is provided with internal screw thread 112, is also provided with circle on auricle 11
Hole 111, the lower part of the head of screw 1 are provided with cavity 12, are provided with teeth 14 in the lower chamber wall of head of screw 1.
Screw thread 22 is provided on the thread cavity bar 2, the inside of thread cavity bar 2 is provided with inner cavity 21, the top of inner cavity 21
Portion is connected to the cavity 12 of head of screw 1, and also interval is provided with disperse hole 23 on the thread cavity bar 2 between two screw threads 22.
The lower part of the thread cavity bar 2 is provided with screw tail 3, and the bottom end of screw tail 3 is provided with two panels cutting blade 31.
When work, circular hole 111 is clamped with clamping clip, the connection head of installation tool is placed in the lower part of head of screw 1
In chamber 21, engages the peripheral teeth on installation tool connection head with the teeth 14 of head of screw 1, be firmly rotatablely installed tool, two
Piece cutting blade 31 drills out centre bore on osteoporosis bone, and the self tapping in centre bore of screw thread 22, which squeezes, cuts out matched spiral shell
Head of screw 1 is screwed in the position of osteoporosis bone by line, is then infused bone cement through the bottom of cavity 12 by high pressure injector
Enter into the inner cavity of thread cavity bar 2 21, bone cement can voluntarily be spilt by the disperse hole 23 on thread cavity bar 2 under diffusion
Into bone tissue, thread cavity bar 2 is firmly combined together with the bone of fixed position is needed after the completion of process of setting, thus
It realizes the effect reinforced, pitman is placed in U type slot 13 with clamping clip, and be screwed by holding plug screw device by plug screw is fastened
Into the internal screw thread 112 of two panels auricle 11, it can be fixedly connected with stick, to realize the steady of pitman and more pedicle screws
It is fixed.
The above, embodiment is only that preferred embodiments of the present invention will be described, not to of the invention
Range is defined, and under the premise of not departing from the spirit of the technology of the present invention, this field engineers and technicians are to skill of the invention
The various changes and improvements that art scheme is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (4)
1. a kind of loose bone cement of novel bone reinforces pedicle screw, it is characterized in that: a kind of novel bone porotic bone
It includes head of screw, thread cavity bar and screw tail that cement, which reinforces pedicle screw,；
The top of the thread cavity bar 2 is provided with head of screw, and the lower part of the thread cavity bar is provided with screw tail.
2. the loose bone cement of a kind of novel bone according to claim 1 reinforces pedicle screw, it is characterized in that: described
The top of head of screw is provided with U type slot, and the top of head of screw is also provided with two panels auricle, and the inside of auricle is provided with interior spiral shell
Line, circular hole is also provided on auricle, and the lower part of the head of screw is provided with cavity, is provided in the lower chamber wall of head of screw
Teeth.
3. the loose bone cement of a kind of novel bone according to claim 1 reinforces pedicle screw, it is characterized in that: described
Screw thread is provided on thread cavity bar, the inside of thread cavity bar is provided with inner cavity, and the top of inner cavity is connected to the cavity of head of screw, and two
Also interval is provided with disperse hole on thread cavity bar between screw thread.
4. the loose bone cement of a kind of novel bone according to claim 1 reinforces pedicle screw, it is characterized in that: described
The bottom end of screw tail is provided with two panels cutting blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910206331.3A CN109745113A (en) | 2019-03-19 | 2019-03-19 | A kind of loose bone cement reinforcement pedicle screw of novel bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910206331.3A CN109745113A (en) | 2019-03-19 | 2019-03-19 | A kind of loose bone cement reinforcement pedicle screw of novel bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109745113A true CN109745113A (en) | 2019-05-14 |
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ID=66409032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910206331.3A Pending CN109745113A (en) | 2019-03-19 | 2019-03-19 | A kind of loose bone cement reinforcement pedicle screw of novel bone |
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| CN (1) | CN109745113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529034A (en) * | 2020-05-20 | 2020-08-14 | 重庆市中医院 | Internal fixing device for patellar lower-pole fracture and screw fixing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110264151A1 (en) * | 2010-04-26 | 2011-10-27 | Timothy Davis | Bone fixation device and method of validating its proper placement |
| CN203122576U (en) * | 2013-02-05 | 2013-08-14 | 中国人民解放军第三军医大学第一附属医院 | Pressurization injection single-shaft pedicle screw |
| CN203677230U (en) * | 2013-12-02 | 2014-07-02 | 浙江康慈医疗科技有限公司 | Minimally invasive hollow multi-side hole spinal pedicle screw |
| CN105848597A (en) * | 2013-11-22 | 2016-08-10 | 脊柱平衡股份有限公司 | Poly-axial pedicle screw assembly and packaging therefor |
-
2019
- 2019-03-19 CN CN201910206331.3A patent/CN109745113A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110264151A1 (en) * | 2010-04-26 | 2011-10-27 | Timothy Davis | Bone fixation device and method of validating its proper placement |
| CN203122576U (en) * | 2013-02-05 | 2013-08-14 | 中国人民解放军第三军医大学第一附属医院 | Pressurization injection single-shaft pedicle screw |
| CN105848597A (en) * | 2013-11-22 | 2016-08-10 | 脊柱平衡股份有限公司 | Poly-axial pedicle screw assembly and packaging therefor |
| CN203677230U (en) * | 2013-12-02 | 2014-07-02 | 浙江康慈医疗科技有限公司 | Minimally invasive hollow multi-side hole spinal pedicle screw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111529034A (en) * | 2020-05-20 | 2020-08-14 | 重庆市中医院 | Internal fixing device for patellar lower-pole fracture and screw fixing method |
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Application publication date: 20190514 |
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| RJ01 | Rejection of invention patent application after publication |