CN203677216U - Percutaneous vertebral expansion forming system - Google Patents
Percutaneous vertebral expansion forming system Download PDFInfo
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- CN203677216U CN203677216U CN201320813230.0U CN201320813230U CN203677216U CN 203677216 U CN203677216 U CN 203677216U CN 201320813230 U CN201320813230 U CN 201320813230U CN 203677216 U CN203677216 U CN 203677216U
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- handle
- flexible handle
- vertebral body
- guide rod
- titanium alloy
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Abstract
The utility model discloses a percutaneous vertebral expansion forming system for a percutaneous kyphoplasty, which comprises a handle, wherein the handle consists of a fixed handle and a flexible handle which are movably connected with each other. The system is characterized by further comprising a guide rod and an expandable device; the expandable device consists of a plurality of titanium alloy bars, a shaft rod and two support rings; the two support rings are sleeved at the two ends of the shaft rod respectively; the titanium alloy bars uniformly surround the shaft rod; the two ends of the titanium alloy bars are connected with the two support rings respectively; one end of the guide rod is connected with the flexible handle; and the other end of the guide rod is connected with the shaft rod. The system has the advantages that the system is convenient to operate, high in reliability, economical and high-efficiency, and increases an operation success rate.
Description
Technical field
This utility model relates to a kind of medical surgical instrument, the especially a kind of expansion of the percutaneous vertebral body for percutaneous balloon kyphoplasty formation system.
Background technology
Along with increasing the weight of of aged tendency of population, the patient of osteoporotic vertebral fracture is more and more.Traditional Therapeutic Method mainly comprise lie up, medicine analgesic, brace be fixing etc. outward, very easily causes the further decalcification of sclerotin loose, forms vicious cycle.And open operative treatment is also because of patient's osteoporosis with systemic conditions is poor is restricted.In recent years, new less invasive techniques, comes out one after another as vertebroplasty and rear protruding plasty, carries out in developed countries such as America and Europes, has obtained challenging curative effect, for a brand-new approach has been opened up in the treatment of Aged Osteoporotic Vertebral Compression Fractures.Percutaneous vertebroplasty (percutaneousvertebroplasty, PVP) be the new technique of very fast Wicresoft's interventional therapy osteoporotic vertebral fracture of development in recent years, under image system mediation, percutaneous is injected the materials such as a certain amount of bone cement in vertebral body, play increase vertebral body intensity, prevent from subsiding, the effect such as pain relieving.But PVP is difficult to recover the height of vertebral body and improve kyphosis deformity, and easily causes bone cement seepage.There is again after this percutaneous balloon kyphoplasty (Percutaneouskyphoplasty, PKP), be that percutaneous and pedicle of vertebral arch are first inserted vertebral body by expansiveness bone sacculus, inflation expansion, fractured vertebral body resets, in fractured vertebral body, manufacture a safe and effective space, venting backed off after random sacculus low pressure are betted into bone cement.PKP can correct kyphosis deformity, reduces postoperative pain; Low pressure is betted into bone cement, reduces the incidence rate of bone cement seepage.
Existing PKP mainly adopts balloon catheter for expanding vertebra, balloon catheter for expanding vertebra is stretched in fractured vertebral body by pre-drilled passage, after sacculus extend into the fracture site that needs distraction reduction, the developing agent pressurization of sacculus being injected to certain volume makes its expansion, the sacculus expanding is progressively propped up the vertebral body of subsiding until return to requirements of operation, and form one can be for the cavity of filling to insert bone cement.The expansiveness bone sacculus that PKP uses only has indivedual manufacturer production at present at home, makes the material of sacculus and all wants import, and expensive, the price of import sacculus is just more striking, and sacculus may produce and break in operation process.In addition, balloon expandable is a kind of mechanical rigid expansion, and the ability of correcting kyphosis deformity is still limited, and mechanical rigid expansion is equivalent to cause once fracture, and pain degree is larger, sometimes needs general anesthesia.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of easy to operate, economical and efficient, raising success rate of operation, percutaneous vertebral body expansion formation system that reliability is high.
The technical scheme in the invention for solving the above technical problem is: this system comprises handle, fixed handle and flexible handle that handle is connected by interaction form, its construction features is also to comprise guide rod and inflatable device, inflatable device is made up of some titanium alloy bars, axostylus axostyle and two support rings, two support rings are enclosed within respectively the two ends of axostylus axostyle, titanium alloy bar uniform ring is around axostylus axostyle, and the two ends of titanium alloy bar are connected with two support rings respectively; One end of guide rod is connected with flexible handle, and its other end is connected with axostylus axostyle.
One end of guide rod described in the utility model is mounted in the end of flexible handle, and the axostylus axostyle of inflatable device is inserted in the other end of guide rod.
Fixed handle described in the utility model is provided with adjustment screw.
The junction of fixed handle described in the utility model and flexible handle is fixed by screw, and flexible handle can rotate around screw.
This utility model is provided with two spring leafs that cross one another on described fixed handle and flexible handle, and two spring leafs are separately fixed on fixed handle and flexible handle by screw.
Inflatable device described in the utility model is made up of four titanium alloy bars.
Adjustment screw described in the utility model is screwed on fixed handle, and its tail end is near flexible handle.
This utility model compared with prior art, there is following beneficial effect: this system is by pulling flexible handle, the support ring of inflatable device is carried out to push-and-pull with guide rod, thereby realize the enlargement and contraction of titanium alloy bar, when titanium alloy bar shrinks, inflatable device is sent in vertebral body, then expand titanium alloy bar, make inflatable device expand into olive shape, oval or spherical, inflatable device produces the huge power that struts, effectively strut compressed vertebral body, then shrink titanium alloy bar, inflatable device is exited in vertebral body, bone cement reinjects, if needed, also inflatable device can be stayed in the body, this dilator has substituted traditional dilating sacculus, low price, simple to operate, controllability is strong, mainly expand in vertebral body vertical direction, little to vertebral body lateral wall pressure, can reduce bone cement and inject neurovascular damage and compressing, and expanded piecemeal by far-end to near-end, its expanding position of capable of regulating still after expansion first paragraph, before mechanical return vertebral body, the strength of center pillar is larger, struts space larger, and the stability of rebuilding spinal column is more reliable.
Brief description of the drawings
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the A place enlarged drawing (when inflatable device expansion) of Fig. 1.
Fig. 3 is the A place enlarged drawing (when inflatable device is closed) of Fig. 1.
Fig. 4 is the partial sectional view of this utility model embodiment.
Fig. 5 is the structural representation of handle portion in this utility model embodiment.
Fig. 6 is the structural representation of guide rod in this utility model embodiment.
Fig. 7 is the structural representation of inflatable device in this utility model embodiment.
Detailed description of the invention
Referring to Fig. 1, Fig. 4, Fig. 5-Fig. 7, the present embodiment comprises by fixed handle 1 and flexible handle 2 and forms handle, guide rod 3 and inflatable device 4.
Fixed handle 1 is connected with flexible handle 2 interactions, and the junction of fixed handle 1 and flexible handle 2 is fixed by screw, and flexible handle 2 can rotate around screw.Fixed handle 1 and flexible handle 2 are provided with 6, two spring leafs 6 of two spring leafs that cross one another and are separately fixed on fixed handle 1 and flexible handle 2 by screw, and the effect of spring leaf 6 is to make flexible handle 2 after finishing using, be returned to rapidly original state.On fixed handle 1, be screwed with adjustment screw 5, the tail end of adjustment screw 5 is near flexible handle 2, and its effect is tighten or unscrew adjustment screw, distance between capable of regulating adjustment screw 5 tail ends and flexible handle 2, distance is larger, and the expandable size of flexible handle 2 is larger, otherwise less.
Inflatable device 4 is made up of four titanium alloy bars 401, axostylus axostyle 402 and two support rings 403, two support rings 402 are enclosed within respectively the two ends of axostylus axostyle 402 and can slide along axostylus axostyle 402, titanium alloy bar 401 uniform ring are around axostylus axostyle 402, and the two ends of titanium alloy bar 401 connect as one structure with two support rings 402 respectively.One end of guide rod 3 is mounted in the end of flexible handle 2, and the axostylus axostyle 402 of inflatable device 4 is inserted in the other end of guide rod 3.
According to design needs, guide rod 3 can take off from the end of flexible handle 2, also can be fixed in flexible handle 2 or be made of one structure with flexible handle 2; Axostylus axostyle 402 can plug arbitrarily from the end of guide rod 3, also can be fixed in guide rod 3 or be made of one structure with guide rod 3, and the material of titanium alloy bar 401 is titanium alloy or Nitinol.
While bringing into use, as shown in Figure 3, inflatable device 4 is in closure state.First according to flexible handle 2 required open size, adjustment screw 5 is regulated, then by hand-held fixed handle 1 and flexible handle 2, inflatable device 4 is stretched in fractured vertebral body by pre-drilled passage, after inflatable device 4 extend into the fracture site that needs distraction reduction, pull flexible handle 2, withstand and cannot continue to pull until flexible handle 2 is conditioned the tail end of screw 5, now flexible handle 2 drives guide rod 3 to promote to inflatable device 4 directions, guide rod 3 promotions are slided along axostylus axostyle 402 with the support ring 403 of close guide rod 3 one end of its close contact, titanium alloy bar 401 struts gradually, the degree strutting according to titanium alloy bar 401, inflatable device 4 expands into olive shape, oval or spherical.Now, inflatable device 4 produces the huge power that struts, strut compressed vertebral body, the vertebral body of subsiding is progressively propped up, producing one can be for the cavity of the hollow of filling bone cement, then unclamp flexible handle 2, flexible handle 2 is returned to original position under the effect of spring leaf 6, also slides into original position, inflatable device 4 closures near the support ring 403 of guide rod 3 one end thereupon, finally inflatable device 4 is exited from vertebral body, inject bone cement.
As axostylus axostyle 402 is designed to plug arbitrarily from the end of guide rod 3, inflatable device 4 is in vivo after closure, rotating guide 3, and axostylus axostyle 402 departs from from the end of guide rod 3, and inflatable device 4 just can stay in the body.
Claims (7)
1. a percutaneous vertebral body expansion formation system, comprise handle, fixed handle (1) and flexible handle (2) that handle is connected by interaction form, it is characterized in that: also comprise guide rod (3) and inflatable device (4), inflatable device (4) is made up of some titanium alloy bars (401), axostylus axostyle (402) and two support rings (403), two support rings (402) are enclosed within respectively the two ends of axostylus axostyle (402), titanium alloy bar (401) uniform ring is around axostylus axostyle (402), and the two ends of titanium alloy bar (401) are connected with two support rings (402) respectively; One end of guide rod (3) is connected with flexible handle (2), and its other end is connected with axostylus axostyle (402).
2. percutaneous vertebral body expansion formation system according to claim 1, is characterized in that: one end of described guide rod (3) is mounted in the end of flexible handle (2), and the axostylus axostyle (402) of inflatable device (4) is inserted in the other end of guide rod (3).
3. percutaneous vertebral body expansion formation system according to claim 1, is characterized in that: described fixed handle (1) is provided with adjustment screw (5).
4. percutaneous vertebral body expansion formation system according to claim 1, is characterized in that: the junction of described fixed handle (1) and flexible handle (2) is fixed by screw, and flexible handle (2) can rotate around screw.
5. percutaneous vertebral body expansion formation system according to claim 1, it is characterized in that: on described fixed handle (1) and flexible handle (2), be provided with two spring leafs that cross one another (6), two spring leafs (6) are separately fixed on fixed handle (1) and flexible handle (2) by screw.
6. percutaneous vertebral body expansion formation system according to claim 1, is characterized in that: described inflatable device (4) is made up of four titanium alloy bars (401).
7. percutaneous vertebral body expansion formation system according to claim 3, is characterized in that: it is upper that described adjustment screw (5) is screwed in fixed handle (1), and its tail end is near flexible handle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813230.0U CN203677216U (en) | 2013-12-12 | 2013-12-12 | Percutaneous vertebral expansion forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813230.0U CN203677216U (en) | 2013-12-12 | 2013-12-12 | Percutaneous vertebral expansion forming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203677216U true CN203677216U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320813230.0U Expired - Fee Related CN203677216U (en) | 2013-12-12 | 2013-12-12 | Percutaneous vertebral expansion forming system |
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| CN (1) | CN203677216U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622734A (en) * | 2013-12-12 | 2014-03-12 | 浙江康慈医疗科技有限公司 | Percutaneous dilatation vertebroplasty system |
| CN107411787A (en) * | 2017-08-28 | 2017-12-01 | 上海君联医疗设备有限公司 | For the pyramidal support device after people's compression fracture of vertabral body |
| CN108670394A (en) * | 2018-06-14 | 2018-10-19 | 东莞市创迈电子科技有限公司 | A kind of bone expansion structure |
-
2013
- 2013-12-12 CN CN201320813230.0U patent/CN203677216U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622734A (en) * | 2013-12-12 | 2014-03-12 | 浙江康慈医疗科技有限公司 | Percutaneous dilatation vertebroplasty system |
| CN103622734B (en) * | 2013-12-12 | 2016-08-17 | 浙江康慈医疗科技有限公司 | Percutaneous vertebral body expansion formation system |
| CN107411787A (en) * | 2017-08-28 | 2017-12-01 | 上海君联医疗设备有限公司 | For the pyramidal support device after people's compression fracture of vertabral body |
| CN108670394A (en) * | 2018-06-14 | 2018-10-19 | 东莞市创迈电子科技有限公司 | A kind of bone expansion structure |
| CN108670394B (en) * | 2018-06-14 | 2024-04-19 | 谢少鹏 | Bone expansion structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20161212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |