CN206526104U - Backbone is implanted into dilator - Google Patents
Backbone is implanted into dilator Download PDFInfo
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- CN206526104U CN206526104U CN201621329592.2U CN201621329592U CN206526104U CN 206526104 U CN206526104 U CN 206526104U CN 201621329592 U CN201621329592 U CN 201621329592U CN 206526104 U CN206526104 U CN 206526104U
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- dilator
- sleeve pipe
- push rod
- centrum
- backbone
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Abstract
The utility model is related to a kind of backbone implantation dilator, including push rod, sleeve pipe and dilator；Dilator is arranged on inside pipe casing, and close to the port of export of sleeve pipe；Push rod may be inserted into sleeve pipe, and be slided in sleeve pipe, and in sliding process, push rod releases dilator outside sleeve pipe；Cross sectional shape under original state of dilator is class ellipse, by many loop-shapeds of bonding jumper spiralization, and often encloses and be all and tight form；When dilator is placed in inside pipe casing, dilator is in compressive state, and the dilator in compressive state is cylindric, and its cross sectional shape is rectangle, and the material of dilator is memorial alloy.Backbone of the present utility model is implanted into dilator, and the effect that struts of sacculus is instead of using dilator, reduces operation cost, and dilator is stayed in the intensity in centrum, adding centrum simultaneously with bone cement.
Description
Technical field
The utility model is related to medical instruments field, more particularly to a kind of backbone for vertebral body augmentation plasty is implanted into
Dilator.
Background technology
Vertebral body balloon expansion plasty is a Minimally invasive procedure operation, is drilled on the limbs of compression, by a spy
The air bag feeding centrum center of the about 15mm sizes of system, then fills physiological saline, the air bag of expansion, which is gradually propped up, to be collapsed to air bag
Centrum, until centrum profile returns to normal vertebral body, remove sacculus, then by cavity from the hole to centrum center inject bone
Cement.It can strengthen the strength and stability of centrum after bone cement solidification, will not be compressed this guarantees the centrum of recovery, and ridge
The deformity of post is also just repaired.In vertebral body balloon expansion plasty the bone cement that uses be it is a kind of be used to filling between implant
Gap or bone cavity and the biomaterial with self-solidifying characteristic, main component is polymethyl methacrylate, and cement reaction can be protected
Demonstrate,prove the instant stabilization of postoperative prosthese.
In the prior art, vertebral body balloon expansion plasty props up the centrum collapsed using balloon expandable, however, balloon expandable
Controllability it is poor, reset direction be difficult to control to；In addition, sacculus also has the danger of rupture, and expanded using sacculus
Centrum, operation cost is higher.
Sacculus is replaced using expansion body in patent application 2015105693203, expansion body is expanded into required shape, and
Wherein injection bone cement or artificial bone, make corpus vertebrae replacement, but the apparatus structure is more complicated, and parts are more, and operation is also compared
It is more complicated.
Utility model content
In view of the drawbacks described above of prior art, the purpose of this utility model is to provide a kind of simple in construction, and cost is low, is easy to
Operation, the backbone beneficial to corpus vertebrae replacement are implanted into dilator.
The purpose of this utility model is achieved through the following technical solutions：
A kind of backbone is implanted into dilator, including push rod, sleeve pipe and dilator；The dilator is arranged in described sleeve pipe
Portion, and close to the port of export of described sleeve pipe；The push rod may be inserted into described sleeve pipe, and be slided in described sleeve pipe, slide
Cheng Zhong, the push rod releases the dilator outside described sleeve pipe；Cross sectional shape under original state of the dilator is class
Ellipse, by many loop-shapeds of bonding jumper spiralization, and often encloses and is all and tight form；The dilator is placed in described sleeve pipe
When internal, the dilator is in compressive state, and the dilator in compressive state is cylindric, and its cross sectional shape is square
Shape, the material of the dilator is memorial alloy.
Further, the maximum gauge of the spiral coil of the dilator is A, and the minimum diameter of spiral coil is B, spiral coil
Lateral length be C, form a diameter of D of the bonding jumper of the spiral coil, wherein, A is set to 14mm, and B is set to 8mm, and C is set
17mm is set to, D is set to 2mm.
Further, the backbone is implanted into the operating method of dilator,（1）Set up after service aisle, described sleeve pipe is implanted into
In lesion centrum；（2）After the push rod is placed in described sleeve pipe, promote the push rod that the dilator is pushed into centrum,
Because the material of the dilator is memorial alloy, the dilator returns to original shape at a certain temperature after entering centrum
Shape；In the presence of the dilator, lesion centrum reverts to original height；（3）The push rod is extracted out after described sleeve pipe, led to
Cross described sleeve pipe and certain bone cement is injected in the dilator.
Compared with the existing technology, it is the characteristics of the utility model and progressive as follows：
1st, backbone implantation dilator of the present utility model instead of the effect that struts of sacculus using dilator, and reduction is performed the operation into
This.
2nd, backbone implantation dilator of the present utility model is after injection bone cement, and dilator is stayed in centrum simultaneously with bone cement
It is interior, add the intensity of centrum.
3rd, backbone implantation dilator of the present utility model, simple in construction, is easy to operation；Reduce operation risk；Can be preferably
Be conducive to the reset of centrum, reduce injection pressure；Strengthen the compressive resistance of lesion centrum.
4th, the dilator of backbone implantation dilator of the present utility model uses memory alloy material, convenient control corpus vertebrae replacement
Direction；And dilator plays a part of fixed reinforcement centrum.
5th, the cross sectional shape of the dilator of backbone implantation dilator of the present utility model is class ellipse, and it constructs similar bullet
Spring, by bonding jumper spiralization and tight many loop-shapeds, it is ensured that construction of stable and increase centrum intensity.
Brief description of the drawings
Fig. 1：The structure chart of push rod；
Fig. 2：The structure chart of sleeve pipe；
Fig. 3：The structure chart of dilator under original state；
Fig. 4：Sleeve pipe is implanted into the structural representation of lesion centrum；
Fig. 5：Dilator is pushed into Intrapyramidal structural representation by push rod sleeve pipe；
Fig. 6：Push rod extracts sleeve pipe rear distraction device out in Intrapyramidal structural representation；
Fig. 7：(a) it is the state of dilator in sleeve pipe；（b）To restore the state of rear distraction device.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1-2, backbone implantation dilator, including push rod 1, sleeve pipe 2 and dilator 3；Dilator 3 is arranged on
Inside sleeve pipe 2, and close to the port of export of sleeve pipe 2；Push rod 1 may be inserted into sleeve pipe 2, and be slided in sleeve pipe 2, in sliding process,
Push rod 1 can release dilator 3 outside sleeve pipe 2.
As shown in figure 3, under original state of dilator 3（Or enter after centrum under reset condition）Cross sectional shape for class it is ellipse
Circle, it constructs spring-like, by many loop-shapeds of bonding jumper spiralization, and often encloses and be all and tight form, so, a side
Bone cement can be contained in dilator 3 by face after ensureing the construction of stable of dilator 3, the injection bone cement of another aspect dilator 3
Inside, increases the intensity of centrum；Under original state, the maximum gauge of the spiral coil of dilator 3 is A, the minimum diameter of spiral coil
For B, the lateral length of spiral coil is C, forms a diameter of D of the bonding jumper of the spiral coil, at backbone implantation dilator
When off working state, in order that dilator 3 keeps stable in sleeve pipe 2 and is in work shape when the backbone is implanted into dilator
During state, dilator 3 is released outside sleeve pipe 2 for convenience, in addition, it is contemplated that strengthening the effect of the fixation centrum of dilator 3, passed through
A, can be set to 14mm by Optimum Experiment, and B is set to 8mm, and C is set to 17mm, and D is set to 2mm.
Such as Fig. 7（a）Shown, at 2 inside of sleeve pipe, dilator 3 is in compressive state, in order that dilator 3 can be stably
It is placed in inside sleeve pipe 2, the dilator 3 in compressive state is cylindric, and its cross sectional shape is rectangle；The material of dilator 3 is
Memorial alloy；So, when push rod 1 releases dilator 3 outside sleeve pipe 2, and enter in centrum, at a certain temperature, dilator 3 is extensive
Original shape is arrived again（I.e. cross sectional shape is class ellipse）, such as Fig. 7（b）It is shown.
As Figure 4-Figure 6, the operating procedure of backbone implantation dilator is as follows：（1）Set up after service aisle, by sleeve pipe 2
It is implanted into lesion centrum；（2）After push rod 1 is placed in sleeve pipe 2, promote push rod 1 that dilator 3 is pushed into centrum, due to strutting
The material of device 3 is memorial alloy, and dilator 3 returns to original shape at a certain temperature after entering centrum；In the work of dilator 3
Under, lesion centrum reverts to original height；（3）Push rod 1 is extracted out after sleeve pipe 2, one is injected in dilator 3 by sleeve pipe 2
Fixed bone cement.
But, those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
Utility model, and be not used as it is of the present utility model limit, if in spirit of the present utility model, to
Change, the modification of the upper embodiment will all fall in Claims scope of the present utility model.
Claims (2)
1. a kind of backbone is implanted into dilator, it is characterised in that：Including push rod（1）, sleeve pipe（2）And dilator（3）；It is described to strut
Device（3）It is arranged on described sleeve pipe（2）Inside, and close to described sleeve pipe（2）The port of export；The push rod（1）It may be inserted into described
Sleeve pipe（2）, and in described sleeve pipe（2）It is middle to slide, in sliding process, the push rod（1）By the dilator（3）Release the set
Pipe（2）Outside；The dilator（3）Original state under cross sectional shape for class ellipse, by many casts of bonding jumper spiralization
Shape, and often enclose and be all and tight form；The dilator（3）It is placed in described sleeve pipe（2）When internal, the dilator（3）Place
In compressive state, the dilator in compressive state（3）To be cylindric, its cross sectional shape is rectangle, the dilator（3）
Material be memorial alloy.
2. backbone according to claim 1 is implanted into dilator, it is characterised in that：The dilator（3）Spiral coil most
Major diameter is A, and the minimum diameter of spiral coil is B, and the lateral length of spiral coil is C, formed the spiral coil bonding jumper it is straight
Footpath is D, wherein, the A is set to 14mm, and the B is set to 8mm, and the C is set to 17mm, and the D is set to 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329592.2U CN206526104U (en) | 2016-12-06 | 2016-12-06 | Backbone is implanted into dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621329592.2U CN206526104U (en) | 2016-12-06 | 2016-12-06 | Backbone is implanted into dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206526104U true CN206526104U (en) | 2017-09-29 |
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ID=59921737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621329592.2U Active CN206526104U (en) | 2016-12-06 | 2016-12-06 | Backbone is implanted into dilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206526104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725813A (en) * | 2016-12-06 | 2017-05-31 | 苏州爱得科技发展股份有限公司 | Backbone is implanted into dilator |
-
2016
- 2016-12-06 CN CN201621329592.2U patent/CN206526104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725813A (en) * | 2016-12-06 | 2017-05-31 | 苏州爱得科技发展股份有限公司 | Backbone is implanted into dilator |
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