CN204428138U - The inflatable device of controllable bending treatment compression fracture of vertabral body - Google Patents
The inflatable device of controllable bending treatment compression fracture of vertabral body Download PDFInfo
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- CN204428138U CN204428138U CN201420780829.3U CN201420780829U CN204428138U CN 204428138 U CN204428138 U CN 204428138U CN 201420780829 U CN201420780829 U CN 201420780829U CN 204428138 U CN204428138 U CN 204428138U
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- compression fracture
- inflatable device
- controllable bending
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- treatment compression
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Abstract
The utility model discloses the inflatable device of a kind of controllable bending treatment compression fracture of vertabral body, relate to field of medical devices, comprise: a fixed handle, one end of described fixed handle is provided with a breeches joint, the other end of described fixed handle is rotating is provided with a rotary handle, have the through hole of the described rotary handle of a connection and described breeches joint import in described fixed handle, an inner screw is through described through hole, and one end of described inner screw is threaded with described rotary handle; The outlet of described breeches joint is connected with an outer sheath, described outer sheath is provided with an inflatable pouch and a head end; One end of one bracing wire is connected with described head end, and the other end of described bracing wire is connected with described inner screw.By arranging rotary handle and bracing wire makes outer sheath to bend, after pedicle is punctured, pouch is gone directly vertebral body center.
Description
Technical field
This utility model relates to a kind of medical treatment device, particularly relates to the inflatable device of a kind of controllable bending treatment compression fracture of vertabral body.
Background technology
Compression fracture of vertabral body (" VCF ") is a kind of common spinal injury and can causes long term disability, and in general, VCF relates to subsiding of one or more vertebral body in spinal column.VCF is unobstructed occurs in the bottom vertebral body of thoracic vertebra or the top vertebral body of lumbar vertebra.The fracture that the front part that VCF generally involves influenced vertebral body produces.VCF can cause normal sequence and the curvature of the vertebral body in the involved area of spinal column, such as lordosis, produces distortion.VCF and or relevant deformity of spine be such as that cause due to the metastatic disease, wound etc. of spinal column or relevant to osteoporosis.Until at present, doctor is still subject to many limitations taking which kind of mode to treat in VCF and related deformities.
Treatment compression fracture of vertabral body, general employing two kinds of technology, one is vertebroplasty (PVP): by flowable reinforcing material, normally polymethyl methacrylate (PMMA-is often called bone cement), injects damaged vertebral body by puncture needle.After injecting soon, liquid filling material is polymerized cement and hardness increases, and from internal support vertebral body, alleviating pain also prevents from subsiding further through vertebral body.
Another kind of technology is balloon kyphoplasty (PKP), is inserted in damaged vertebral body, then expands distensible device.Take out distensible device, namely this operation forms a cavity in bone, can fill bone cement or other loading material in the cavities, enables the bone load-bearing of fracture.Thus strengthening damaged vertebral body, protect it to avoid subsiding further.
This series products Problems existing at present: bone cement seepage and bilateral puncturing operation are costly.
Bone cement seepage is complication the most common.PVP art bone cement percolation ratio is 40%, and balloon kyphoplasty (Kyphoplasty, KP) art bone cement percolation ratio is 8%, within short-term, and the seepage non-evident sympton of the overwhelming majority; But the bone cement spilt also may cause nervous lesion even paraplegia due to factors such as mechanical pressure, heating, chemical toxicities.So class operation needs to reduce bone cement percolation ratio.
Owing to carrying out in PVP and PKP operation process, need injection bone cement to recover vertebral height, one-sided puncture injection bone cement easily causes vertebral height to recover uneven, and causes complication.Recover evenly to vertebral height, then need bilateral to puncture, surgery cost is high.
Utility model content
The utility model discloses the inflatable device of a kind of controllable bending treatment compression fracture of vertabral body, complicated in order to solve operating procedure in prior art, radiant intensity is large, has the problem of refracture risk.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of inflatable device of controllable bending treatment compression fracture of vertabral body, wherein, comprise: a fixed handle, one end of described fixed handle is provided with a breeches joint, the other end of described fixed handle is rotating is provided with a rotary handle, have the through hole of the described rotary handle of a connection and described breeches joint import in described fixed handle, an inner screw is through described through hole, and one end of described inner screw is threaded with described rotary handle; The outlet of described breeches joint is connected with an outer sheath, described outer sheath is provided with an inflatable pouch and a head end; One end of one bracing wire is connected with described head end, and the other end of described bracing wire is connected with described inner screw.
The inflatable device of controllable bending treatment compression fracture of vertabral body as above, wherein, described breeches joint comprises: one first mouth of pipe, one second mouth of pipe, an outlet, described first mouth of pipe and described outlet are on the same line.
The inflatable device of controllable bending treatment compression fracture of vertabral body as above, wherein, one end of described first mouth of pipe is placed in described fixed handle.
The inflatable device of controllable bending as above treatment compression fracture of vertabral body, wherein, described in be drawstring through described first mouth of pipe, described exit ramp.
The inflatable device of controllable bending as above treatment compression fracture of vertabral body, wherein, also comprises sheath pipe in, and one end of described interior sheath pipe is arranged on the distal end of described pouch through described breeches joint, described outer sheath, described pouch.
The inflatable device of controllable bending as above treatment compression fracture of vertabral body, wherein, described in be drawstring through described interior sheath pipe.
The inflatable device of controllable bending treatment compression fracture of vertabral body as above, wherein, described bracing wire adopts metal material.
The inflatable device of controllable bending treatment compression fracture of vertabral body as above, wherein, described pouch adopts soft macromolecular material.
The inflatable device of controllable bending treatment compression fracture of vertabral body as above, wherein, first mouth of pipe of described breeches joint has a lid, and an end of described lid is threaded on described breeches joint, and the other end of described lid is arranged in described fixed handle.
The inflatable device of controllable bending treatment compression fracture of vertabral body as above, wherein, one end of described interior sheath pipe is installed on the lid.
In sum, owing to have employed technique scheme, it is complicated that this utility model solves operating procedure in prior art, radiant intensity is large, there is the problem of refracture risk, by arranging rotary handle and bracing wire makes outer sheath to bend, after pedicle is punctured, pouch is gone directly vertebral body center, realize vertebral body center to reset, and make to create bone cement chamber in vertebral body center, realize the center strengthening of vertebral body, be beneficial to the refracture that the structural remodeling of spinal column and control close on sections vertebral body, and this utility model structure is simple, cost is low, convenient operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the inflatable device of this utility model controllable bending treatment compression fracture of vertabral body;
Fig. 2 is the structural representation of the case of bending of the inflatable device of this controllable bending treatment compression fracture of vertabral body.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described further:
Fig. 1 is the structural representation of the inflatable device of this utility model controllable bending treatment compression fracture of vertabral body, Fig. 2 is the structural representation of the case of bending of the inflatable device of this controllable bending treatment compression fracture of vertabral body, refer to Fig. 1, Fig. 2, a kind of inflatable device of controllable bending treatment compression fracture of vertabral body, wherein, comprise: a fixed handle 1, one end of fixed handle 1 is provided with a breeches joint 2, the other end of fixed handle 1 is rotating is provided with a rotary handle 3, there is in fixed handle 1 through hole of a connection rotary handle 3 and breeches joint 2 import, one inner screw 4 is through through hole, one end of inner screw 4 is threaded with rotary handle 3, the outlet of breeches joint 2 is connected with an outer sheath 6, outer sheath 6 is provided with inflatable pouch 8 and a head end, one end of one bracing wire 5 is connected with head end, and the other end of bracing wire 5 is connected with inner screw 4.
Breeches joint 2 of the present utility model comprises: one first mouth of pipe 12,1 second mouth of pipe 9, outlet 10, first mouth of pipe 12 and outlet 10 are on the same line.
One end of first mouth of pipe 12 of the present utility model is placed in fixed handle 1.
Bracing wire 5 of the present utility model is through first mouth of pipe 12, outlet 10.
This utility model also comprises sheath pipe 7 in, and one end of interior sheath pipe 7 is arranged on the distal end of pouch 8 through breeches joint 2, outer sheath 6, pouch 8.Bracing wire 5 of the present utility model is through interior sheath pipe 7.
Bracing wire 5 of the present utility model adopts metal material, such as: 304 rustless steels, and 316L rustless steel, NiTi memorial alloy, TC4 etc.
Pouch 8 of the present utility model adopts soft macromolecular material, such as: PA, Pebax, TPU, PVC etc.
First mouth of pipe 12 of breeches joint 2 of the present utility model has a lid 11, and an end of lid 11 to be threaded on breeches joint 2, and the other end of lid 11 is arranged in fixed handle 1.
The other end of interior sheath pipe 7 of the present utility model is arranged on lid 11.
Outer sheath 6 of the present utility model can adopt far-end to prebend the structure of certain angle.
In specific implementation process of the present utility model, can following examples be adopted: by this utility model along the beeline channel of dilator through vertebral body wall.After the starting point arriving bending channel, because this utility model is also not bending so bad by property.At this moment the rotary handle 3 that needs to turn clockwise makes product head-bent, and then tentatively little by little enters bending channel.Enter in the process of bending channel the rotary handle 3 that should turn clockwise slowly and good pass through angle to obtain.Until this utility model arrive vertebral body center line and slightly through center line some.Filling device with sacculus is pouch 8 pressurising, and vertebral body is raised, and recovers vertebral height.Pouch 8 is filled device pressure release, slowly outwards extracts this utility model.This utility model is outwards extracted in limit, and limit is slowly rotated counterclockwise rotary handle 3, makes head end bending section slowly reduce angle of bend, so that extract this device.After finally extracting this device, in vertebral body, fill bone cement, terminate operation technique.
Claims (10)
1. the inflatable device of a controllable bending treatment compression fracture of vertabral body, it is characterized in that, comprise: a fixed handle, one end of described fixed handle is provided with a breeches joint, the other end of described fixed handle is rotating is provided with a rotary handle, have the through hole of the described rotary handle of a connection and described breeches joint import in described fixed handle, an inner screw is through described through hole, and one end of described inner screw is threaded with described rotary handle; The outlet of described breeches joint is connected with an outer sheath, described outer sheath is provided with an inflatable pouch and a head end; One end of one bracing wire is connected with described head end, and the other end of described bracing wire is connected with described inner screw.
2. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 1, it is characterized in that, described breeches joint comprises: one first mouth of pipe, one second mouth of pipe, an outlet, described first mouth of pipe and described outlet are on the same line.
3. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 2, it is characterized in that, one end of described first mouth of pipe is placed in described fixed handle.
4. the inflatable device of controllable bending according to claim 3 treatment compression fracture of vertabral body, is characterized in that, described in be drawstring through described first mouth of pipe, described exit ramp.
5. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 1, it is characterized in that, also comprise sheath pipe in, one end of described interior sheath pipe is arranged on the distal end of described pouch through described breeches joint, described outer sheath, described pouch.
6. the inflatable device of controllable bending according to claim 5 treatment compression fracture of vertabral body, is characterized in that, described in be drawstring through described interior sheath pipe.
7. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 1, it is characterized in that, described bracing wire adopts metal material.
8. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 1, it is characterized in that, described pouch adopts soft macromolecular material.
9. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 6, it is characterized in that, first mouth of pipe of described breeches joint has a lid, one end of described lid is threaded on described breeches joint, and the other end of described lid is arranged in described fixed handle.
10. the inflatable device of controllable bending treatment compression fracture of vertabral body according to claim 9, it is characterized in that, the other end of described interior sheath pipe is installed on the lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780829.3U CN204428138U (en) | 2014-12-12 | 2014-12-12 | The inflatable device of controllable bending treatment compression fracture of vertabral body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420780829.3U CN204428138U (en) | 2014-12-12 | 2014-12-12 | The inflatable device of controllable bending treatment compression fracture of vertabral body |
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| CN204428138U true CN204428138U (en) | 2015-07-01 |
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| CN201420780829.3U Active CN204428138U (en) | 2014-12-12 | 2014-12-12 | The inflatable device of controllable bending treatment compression fracture of vertabral body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434280A (en) * | 2014-12-12 | 2015-03-25 | 上海朗迈医疗器械科技有限公司 | Curve-controllable expandable apparatus for treatment of vertebral compression fractures |
-
2014
- 2014-12-12 CN CN201420780829.3U patent/CN204428138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434280A (en) * | 2014-12-12 | 2015-03-25 | 上海朗迈医疗器械科技有限公司 | Curve-controllable expandable apparatus for treatment of vertebral compression fractures |
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