CN204683740U - A kind ofly strut bone grafting instrument for compression fracture of vertabral body - Google Patents
A kind ofly strut bone grafting instrument for compression fracture of vertabral body Download PDFInfo
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- CN204683740U CN204683740U CN201520274427.0U CN201520274427U CN204683740U CN 204683740 U CN204683740 U CN 204683740U CN 201520274427 U CN201520274427 U CN 201520274427U CN 204683740 U CN204683740 U CN 204683740U
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- screw body
- bone grafting
- grafting instrument
- bone
- bleeding holes
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Abstract
This utility model relates to and a kind ofly struts bone grafting instrument for compression fracture of vertabral body, and the described bone grafting instrument that struts is formed by the anti-bone growth promoting manufacture of nanometer; The described bone grafting instrument that struts comprises screw body, external screw thread; Described external screw thread covers on screw body; Described screw body is hollow-core construction, and its center is provided with nail road; Described screw body is provided with bleeding holes; Described bleeding holes communicates with the external world; Described bleeding holes is spaced apart in 90 degree on screw body periphery.Its advantage shows: contiguous spongy bone can be allowed in its surperficial forward position growth, and realize the 360 degree of fusions of nail road surrounding spongy bone, strengthen vertebral body intensity, without the need to extenal fixation, alleviate patient trauma, reservation paragraph moves, and avoids cervical spondylosis, saves the economic cost that patient is huge; Strut bone grafting instrument design unique, reach and better merge object, market application scenario is wide.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically, be a kind of for cone compresses fracture strut bone grafting instrument.
Background technology
Osteoporosis reduces with bone amount, osseous tissue microstructure destruction or risk of bone fracture increase to the bone metabolism disturbance disease of feature, compression fracture of vertabral body is that perception is loosened modal complication, can cause deformity after vertebral body, chronic low back pain, then have and cause respiratory function to decline, dyspepsia, pain, loses self-care ability, spirit personality changes etc., make prevalence and mortality rate obviously increase.
Current treatment osteoporosis centrum compression fracture comprises following two types: one, the additional connecting rod of pedicle screw and horizontal connection, i.e. nail-stick system; Two, percutaneous puncture bone cement vertebroplasty or balloon kyphoplasty.
The additional connecting rod of existing pedicle screw and horizontal connection, i.e. nail-stick system, following problem is mainly there is: 1, osteoporosis causes sclerotin worsening condition, has a strong impact on the hold of screw: 2, screw loosening often occurs, exits when treating osteoporosis centrum compression fracture; 3, multi-segmental is fixing also can sacrifice segmentation movement, can cause cervical spondylosis; 4, huge financial burden is brought to patient.
Mainly there is following problem when treating osteoporosis centrum compression fracture in percutaneous puncture bone cement vertebroplasty or balloon kyphoplasty: 1, bone cement leakage loss hinders adjacent tissue, especially very careful when treating bursting fracture of vertebral body Cement; 2, when vertebral body posterior wall fractures is broken easily there is seepage in bone cement, enters canalis spinalis Spinal Cord, injected vertebral body front blood vessel and nerve when vertebral body antetheca breaks, and during soleplate fracture, bone cement infiltrates interbody space, the severe complication such as cause that adjacent vertebral bodies is subsided.
Chinese patent literature CN201410513728.4, on 09 29th, 2014 applying date, patent name is " compression fracture of vertabral body struts and puts bone device ", discloses a kind of compression fracture of vertabral body and struts and put bone device.It comprises the sleeve that can arrange inner core, a cylindrical shell is movably set with in described sleeve, the plunger that can move axially along this cylindrical shell is provided with at the inner chamber of cylindrical shell one end, this plunger promotes to be arranged on two in cylindrical shell and struts arm and stretch out this cylindrical shell other end, each external part strutting arm constrains in the inwall of the other end described in cylindrical shell, and described external part end face is fixed with and struts block.This utility model adopts cylindrical shell, plunger and struts arm and coordinates, and when plunger moves along cylindrical shell, struts arm by strutting block by pyramidal support, thus anterior longitudinal ligament, posterior longitudinal ligament and fibrous ring are not stretched, avoid injured nerve.But yet there are no report about a kind of bone grafting instrument that struts for the treatment of compression fracture of vertabral body of implantable artificial bone.
In sum, need a kind of raising cure rate and fractured vertebral body fusion badly, alleviate patient suffering and hospital stays, reduce operation risk, alleviate patient's expense, avoid sacrificing neighbouring section motion, prevent nearly sections from transporting the long term complications such as regression, that fractures for cone compresses struts bone grafting instrument.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art, there is provided a kind of and improve cure rate and fractured vertebral body fusion, alleviate patient suffering and hospital stays, reduce operation risk, alleviate patient's expense, avoid sacrificing neighbouring section motion, prevent nearly sections from transporting the long term complications such as regression, that fractures for cone compresses struts bone grafting instrument.
For achieving the above object, the technical scheme that this utility model is taked is:
Strut a bone grafting instrument for compression fracture of vertabral body, the described bone grafting instrument that struts is formed by the anti-bone growth promoting manufacture of nanometer; The described bone grafting instrument that struts comprises screw body, external screw thread; Described external screw thread covers on screw body; Described screw body is hollow-core construction, and its center is provided with nail road; Described screw body is provided with bleeding holes; Described bleeding holes communicates with the external world; Described bleeding holes is spaced apart in 90 degree on screw body periphery.
Before described screw body apparent direction axially have 2 bleeding holes, and the centrage of bleeding holes is parallel to each other.
Described nail road is rounded.
Described nail road runs through screw body.
Described screw body is long is 45-50mm, and screw body diameter is 5.5-6.5mm.
Described screw body tip section is trapezoidal.
Described bleeding holes diameter is 2mm.
This utility model advantage is:
1, of the present utility modelly a kind ofly bone grafting instrument is strutted for compression fracture of vertabral body, evading existing internal fixtion and nail-stick system, to there is wound when treating osteoporosis centrum compression fracture large, screw hold is poor, screw easily loosens, exit, sacrifice segmentation movement, the problem such as cervical spondylosis, financial burden can be caused long term large.In conjunction with modern technologies achievement---nano bionic bone, can allow contiguous spongy bone in its surperficial forward position growth, realize the 360 degree of fusions of nail road surrounding spongy bone, strengthen vertebral body intensity, without the need to extenal fixation, alleviate patient trauma, reservation paragraph moves, and avoids cervical spondylosis, saves the economic cost that patient is huge;
2, percutaneous puncture bone cement vertebroplasty or balloon kyphoplasty easily form bone cement leakage loss when treating osteoporosis centrum compression fracture and hinder adjacent tissue, and cause the severe complications such as paralysis, pulmonary infarction, this research can avoid Cement;
3, this nail road strutting bone grafting instrument is roomy, good pressure environment is provided, utilize pressure that artificial bone solution seepage is entered vertebral fracture gap, promote that fracture gap is merged, the profile design of recycling screw uniqueness inserts powdered artificial's bone, fill up and compacting, realize surrounding by nail road bleeding holes and merge, a series of complication avoiding Cement to bring;
4, this struts bone grafting instrument design uniqueness, and evade prior art pluses and minuses, reach and better merge object, market application scenario is wide;
5, should operation is simple, safety is good, and wound is little, and post-operative recovery is fast, without the need to general anesthesia, appears strut bone grafting instrument at local anaesthesia down going channel.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of front view strutted in bone grafting instrument for compression fracture of vertabral body of the present utility model.
Accompanying drawing 2 is a kind of rearviews strutted in bone grafting instrument for cone compresses fracture of the present utility model.
Accompanying drawing 3 is a kind of perspective view strutted in bone grafting instrument for cone compresses fracture of the present utility model.
Accompanying drawing 4 is a kind of left and right view strutted in bone grafting instrument for compression fracture of vertabral body of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention that this utility model provides is elaborated.
The Reference numeral related in accompanying drawing and ingredient as follows:
1. screw body 2. external screw thread
3. bleeding holes 4. is followed closely
Embodiment 1
Please refer to Fig. 1, Fig. 1 is a kind of front view strutted in bone grafting instrument for compression fracture of vertabral body of the present utility model.Strut a bone grafting instrument for compression fracture of vertabral body, described in strut bone grafting instrument and comprise screw body 1, external screw thread 2; Described external screw thread 2 covers on screw body 1; Described screw body 1 is provided with bleeding holes 3.
Please refer to Fig. 2, Fig. 2 is a kind of rearview strutted in bone grafting instrument for cone compresses fracture of the present utility model.Described bleeding holes 3 communicates with the external world; The tip section of described screw body 1 is trapezoidal.
Please refer to Fig. 3, Fig. 3 is a kind of perspective view strutted in bone grafting instrument for cone compresses fracture of the present utility model.Described screw body 1 is long is 45-50mm, and screw body 1 diameter is 5.5-6.5mm; Described bleeding holes 3 diameter is 2mm; Described screw body 1 center is provided with nail road 4; Described bleeding holes 3 is spaced apart in 90 degree in screw body 1 radial direction; Before screw body 1 apparent direction axially have 2 bleeding holes 3, and the centrage of bleeding holes 3 is parallel to each other.
Please refer to Fig. 4, Fig. 4 is a kind of left and right view strutted in bone grafting instrument for compression fracture of vertabral body of the present utility model.Described screw body 1 is hollow-core construction; Described nail road 4 is rounded; Described nail road 4 runs through screw body 1.
It should be noted that: described screw body 1 diameter is according to diverse location, and its screw body 1 diameter is different, and according to clinical experience, screw body 1 diameter is preferably 5.5-6.5mm; Described screw body 1 tip section is trapezoidal, contributes to screw body 1 and passes between vertebral body; Described bleeding holes 3 is spaced apart in 90 degree on screw body 1 periphery, makes surrounding spongy bone 360 degree fusion; Can artificial bone be filled in the thread groove of described external screw thread 2, make the artificial bone outside the artificial bone in screw body 1 and screw body 1 and screw body 1 connect into an entirety, enhance constant intensity and the degree of stability of screw body 1, reduce the generation of broken nail; The described bone grafting instrument that struts is formed by the anti-bone growth promoting manufacture of nanometer, and the anti-bone growth promoting of nanometer is a kind of new type bone material, and new bone also can realize well merging in its superficial growth, and has good intensity.Strutting bone grafting instrument contiguous spongy bone can be allowed to grow in its surperficial forward position by the manufacture of nano bionic bone, strengthens vertebral body intensity.Described struts bone grafting instrument in a state of use, strut after bone grafting instrument enters cone and extrude vertebral cancellous bone, indirect increase unit are bone density, artificial bone solution infiltrates vertebral fracture gap at certain pressure by the nail road 4 strutting bone grafting instrument, damages adjacent tissue, finally artificial bone is filled up passage and compacting when avoiding bone cement seeping at high temperature to leak outside, artificial bone merges with periphery spongy bone by the bleeding holes 3 of wall, interlayer inside and outside " H " type that formed, stablizes screw, increases vertebral body intensity.
Of the present utility modelly a kind ofly strut bone grafting instrument for compression fracture of vertabral body, evading existing internal fixtion and nail-stick system, to there is wound when treating osteoporosis centrum compression fracture large, screw hold is poor, screw easily loosens, exit, sacrifice segmentation movement, the problem such as cervical spondylosis, financial burden can be caused long term large.In conjunction with modern technologies achievement---nano bionic bone, can allow contiguous spongy bone in its surperficial forward position growth, realize the 360 degree of fusions of nail road 4 surrounding spongy bone, strengthen vertebral body intensity, without the need to extenal fixation, alleviate patient trauma, reservation paragraph moves, and avoids cervical spondylosis, saves the economic cost that patient is huge; Percutaneous puncture bone cement vertebroplasty or balloon kyphoplasty easily form bone cement leakage loss when treating osteoporosis centrum compression fracture and hinder adjacent tissue, and cause the severe complications such as paralysis, pulmonary infarction, this research can avoid Cement; This nail road 4 strutting bone grafting instrument is roomy, good pressure environment is provided, utilize pressure that artificial bone solution seepage is entered vertebral fracture gap, promote that fracture gap is merged, the profile design of recycling screw uniqueness inserts powdered artificial's bone, fill up and compacting, realize surrounding by nail road 4 bleeding holes 3 and merge, a series of complication avoiding Cement to bring; It is unique that this struts bone grafting instrument design, and evade prior art pluses and minuses, reach and better merge object, market application scenario is wide; Operation is simple for this, and safety is good, and wound is little, and post-operative recovery is fast, without the need to general anesthesia, appears strut bone grafting instrument at local anaesthesia down going channel.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from this utility model method; can also make some improvement and supplement, these improve and supplement and also should be considered as protection domain of the present utility model.
Claims (7)
1. strut a bone grafting instrument for compression fracture of vertabral body, it is characterized in that, the described bone grafting instrument that struts is formed by the anti-bone growth promoting manufacture of nanometer; The described bone grafting instrument that struts comprises screw body, external screw thread; Described external screw thread covers on screw body; Described screw body is hollow-core construction, and its center is provided with nail road; Described screw body is provided with bleeding holes; Described bleeding holes communicates with the external world; Described bleeding holes is spaced apart in 90 degree on screw body periphery.
2. according to claim 1ly strut bone grafting instrument, it is characterized in that, before described screw body apparent direction axially have 2 bleeding holes, and the centrage of bleeding holes is parallel to each other.
3. according to claim 1ly strut bone grafting instrument, it is characterized in that, described nail road is rounded.
4. according to claim 1ly strut bone grafting instrument, it is characterized in that, described nail road runs through screw body.
5. according to claim 1ly strut bone grafting instrument, it is characterized in that, described screw body is long is 45-50mm, and screw body diameter is 5.5-6.5mm.
6. according to claim 1ly strut bone grafting instrument, it is characterized in that, described screw body tip section is trapezoidal.
7. according to claim 1ly strut bone grafting instrument, it is characterized in that, described bleeding holes diameter is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274427.0U CN204683740U (en) | 2015-04-30 | 2015-04-30 | A kind ofly strut bone grafting instrument for compression fracture of vertabral body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520274427.0U CN204683740U (en) | 2015-04-30 | 2015-04-30 | A kind ofly strut bone grafting instrument for compression fracture of vertabral body |
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| CN204683740U true CN204683740U (en) | 2015-10-07 |
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| CN201520274427.0U Expired - Fee Related CN204683740U (en) | 2015-04-30 | 2015-04-30 | A kind ofly strut bone grafting instrument for compression fracture of vertabral body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799923A (en) * | 2015-04-30 | 2015-07-29 | 中国人民解放军第二军医大学 | Strutting bone grafting instrument for compression fracture of vertebral body |
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2015
- 2015-04-30 CN CN201520274427.0U patent/CN204683740U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799923A (en) * | 2015-04-30 | 2015-07-29 | 中国人民解放军第二军医大学 | Strutting bone grafting instrument for compression fracture of vertebral body |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20170430 |