CN105496541B - Percutaneous bracing type vertebral forming system - Google Patents
Percutaneous bracing type vertebral forming system Download PDFInfo
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- CN105496541B CN105496541B CN201510839429.4A CN201510839429A CN105496541B CN 105496541 B CN105496541 B CN 105496541B CN 201510839429 A CN201510839429 A CN 201510839429A CN 105496541 B CN105496541 B CN 105496541B
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- screw rod
- sliding block
- box cover
- nut
- swivel nut
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of percutaneous bracing type vertebral forming systems.Its screw rod is rotatably mounted in box cover; supporting rod is movably located in internal protective cover; internal protective cover is movably located in outer jointing jacket, and one end of supporting rod is extended outside box cover and equipped with intermeshing nut and nut fixture block, and the other end also extends outside box cover and equipped with head block；First sliding block is mounted on screw rod and is meshed with screw rod, and the first sliding block is fixedly connected with one end of internal protective cover, and the other end of internal protective cover extends outside box cover and passes through the portion of strutting to be connected with head block；Second sliding block is mounted on screw rod and can be moved along screw rod and swivel nut, and the second sliding block is fixedly connected with one end of outer jointing jacket, and the other end of outer jointing jacket extends outside box cover；Third sliding block is mounted on swivel nut and is meshed with swivel nut.The present invention has the advantages that simple and efficient to handle, operation wound is small, controllability is strong, safe, distracting force is big, increases bone cement injection rear stability.
Description
Technical field
The present invention relates to a kind of Minimally invasive procedure operating equipment, especially a kind of percutaneous bracing type vertebral forming system.
Background technology
Compression fracture of vertabral body is the common complication of osteoporosis.With China human mortality aging, which has become
A kind of common disease and incidence increases year by year, the serious symptoms such as pain in the back, spinal anterior approach influence the quality of life of patient.It is common
Therapeutic scheme have expectant treatment（Bed, analgesic drug product, External distraction appliance etc.）, pedicle internal fixators, percutaneous vertebroplasty
Art（PVP）, convex plasty after balloon angioplasty（PKP）With the percutaneous rear convex plastys of SKY.
Wherein percutaneous vertbroplasty is the Minimally Interventional Therapy osteoporotic vertebral bone that have developed rapidly in recent years
The new technology of folding plays increase vertebra under image system mediation percutaneously to materials such as a certain amount of bone cements of vertebra internal injection
Body intensity, the effects that preventing from collapsing, relieving pain.Although it is simple and efficient to handle, surgery cost is cheap, can reach after injection bone cement
Satisfied analgesic effect, but there is bone cement leakage in operation in the case for having 30 ~ 70% according to the literature, and there are bone cement leakages
Enter the risk of canalis spinalis and blood vessel, and impaired vertebral height can not be replied.
Convex plasty is i.e. percutaneous after balloon angioplasty and expansiveness bone sacculus is first placed in centrum by pedicle of vertebral arch, and sacculus is swollen
Swollen expansion, fractured vertebral body reset, and a safe and effective space, deflation backed off after random sacculus and low pressure bet are manufactured in fractured vertebral body
Enter bone cement, vertebral height can be restored to a certain extent, and use bone cement low-pressure injection, relatively traditional percutaneous vertebral body
Plasty greatly reduces bone cement slip, but sacculus is in Intrapyramidal form and uncontrollable, the expanding plasty device that struts direction
It will appear rupture in 20% ODP in operation, and operative indication is limited only to fresh compression fracture of vertabral body, osteoporosis
Solution is hardly resulted in old fracture patient.
Invention content
The technical problems to be solved by the invention be to provide it is a kind of it is simple and efficient to handle, operation wound is small, controllability is strong, pacifies
Quan Xinggao, distracting force are big, increase the percutaneous bracing type vertebral forming system of bone cement injection rear stability.
Technical solution is used by the present invention solves the above problems：The system includes handle and box cover, design feature
It is that screw rod, supporting rod, the first sliding block, the second sliding block, third sliding block, outer jointing jacket and internal protective cover are installed in box cover；Its
Middle screw rod is rotatably mounted in box cover, and one end is fixedly connected with handle, and the other end is fixed in swivel nut；Supporting rod is removable
Dynamic is located in internal protective cover, and internal protective cover is movably located in outer jointing jacket, and one end of supporting rod is extended outside box cover simultaneously
Equipped with intermeshing nut and nut fixture block, the other end also extends outside box cover and equipped with head block；First sliding block is pacified
It is meshed on screw rod and with screw rod, the first sliding block is fixedly connected with one end of internal protective cover, and the other end of internal protective cover prolongs
It stretches out outside box cover and passes through the portion of strutting and be connected with head block；Second sliding block is mounted on screw rod and can be along screw rod and swivel nut
Mobile, the second sliding block is fixedly connected with one end of outer jointing jacket, and the other end of outer jointing jacket extends outside box cover；Third sliding block is pacified
It is meshed on swivel nut and with swivel nut.
One end that screw rod of the present invention is connected with handle is equipped with bearing, and screw rod is rotatably mounted on by bearing
In box cover.
Screw flight spacing of the present invention is more than the flight pitch of swivel nut, and the spiral shell of screw flight direction and swivel nut
Line direction is opposite.
Nut of the present invention is fixed on the end of supporting rod one end, and nut fixture block is fixed on box cover, and head block is consolidated
Due to the end of the supporting rod other end.
The portion of strutting of the present invention uses macromolecule polymer material, in hollow column structure, and if being provided with thereon
Dry equally distributed inflation port.
Compared with prior art, the present invention it has the advantages that：1st, the formation system is collapsed through service aisle insertion
Centrum, rotational handle makes converging portion fold out around supporting rod gauffer to strut to have the function that expansion, so as to reseting fracture centrum
With cavity is squeezed out in centrum, then negative direction rotational handle, makes distracted converging portion revert to formation state and out of centrum
It extracts, then injection bone cement in centrum, plays the role of similar sacculus and purpose, overcome expansion side in balloon inflation
To out of contior deficiency；2nd, the formation system is strutted with multidirectional controlled manner, and the bone cement injected after strutting can be more
Multiple directions are dissipated to, the uncontrollable shortcoming in PKP balloon expandables direction can be made up；3rd, the formation system can effectively restore fractured vertebral body
Height, by percutaneous puncture create space and restore height to rebuild wedge fracture centrum, establish to note in centrum
Enter the cavity of bone cement, the center of gravity of correction centrum, recovery spinal stability, prevent centrum bone again in the state of controllable
Folding, and using percutaneous puncture, operation wound is small, simple and efficient to handle, controllability is strong, safe；4th, the polymerization of the former
Portion's distracting force is big, can effectively restore after injecting bone cement and keeps vertebral height, and converging portion strut presented afterwards it is irregular
Surface increases the stability after bone cement injection, and the space formed in centrum after strutting ensure that the globality of bone cement；
5th, bone cement is injected in a manner of safety and concentration by the center of centrum cavity, reduces bone cement by being overflowed on rear side of centrum
Risk；6th, the former is mainly strutted in the short transverse of centrum, pressure will not be generated to centrum side wall, so as to reduce bone
Damage and compressing of the cement injection to nerve and blood vessel；7th, the former is applied widely, suitable for thoracic vertebrae T5-lumbar vertebrae L5 vertebras
Body is fresh or old fracture, vertebral compression or blow-out fracture, centrum are traumatic or pathologic fracture.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the structure diagram after the present invention opens the lid（When strutting portion and not strutting）.
Fig. 4 is the structure diagram after the present invention opens the lid（Portion's support is strutted when opening to the maximum）.
Fig. 5 is the structure diagram after the present invention opens the lid（After strutting portion's retraction）.
Fig. 6-Fig. 8 is the usage state diagram of the present invention.
Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17, Figure 19, Figure 21, Figure 23, Figure 25, Figure 27, Figure 29, Figure 31, Figure 33 are this hair
Bright uses procedure chart.
Figure 10 is the enlarged drawing that boom end is supported in Fig. 9.
Figure 12 is the enlarged drawing that boom end is supported in Figure 11.
Figure 14 is the enlarged drawing that boom end is supported in Figure 13.
Figure 16 is the enlarged drawing that boom end is supported in Figure 15.
Figure 18 is the enlarged drawing that boom end is supported in Figure 17.
Figure 20 is the enlarged drawing that boom end is supported in Figure 19.
Figure 22 is the enlarged drawing that boom end is supported in Figure 21.
Figure 24 is the enlarged drawing that boom end is supported in Figure 23.
Figure 26 is the enlarged drawing that boom end is supported in Figure 25.
Figure 28 is the enlarged drawing that boom end is supported in Figure 27.
Figure 30 is the enlarged drawing that boom end is supported in Figure 29.
Figure 32 is the enlarged drawing that boom end is supported in Figure 31.
Figure 34 is the enlarged drawing that boom end is supported in Figure 33.
Specific embodiment
Referring to Fig. 1-Fig. 5, the present embodiment includes handle 1 and box cover 2, and screw rod 3, supporting rod 4, the are equipped in box cover 2
One sliding block 9, the second sliding block 10, third sliding block 11, outer jointing jacket 51 and internal protective cover 52.
One end of screw rod 3 is fixedly connected with handle 1, and the other end is fixed in swivel nut 8.Screw rod 3 be connected with handle 1 one
End is equipped with bearing 6, and screw rod 3 is rotatably mounted in box cover 2 by bearing 6.The flight pitch of screw rod 3 is more than swivel nut 8
Flight pitch, and the hand of spiral of screw rod 3 is opposite with the hand of spiral of swivel nut 8.
Supporting rod 4 is movably located in internal protective cover 52, and internal protective cover 52 is movably located in outer jointing jacket 51, branch
One end of strut 4 is extended outside box cover 2 and equipped with nut 12 and nut fixture block 13, and nut 12 is fixed on the end at 4 end of supporting rod
Portion, nut fixture block 13 are fixed on box cover 2, and nut 12 and nut fixture block 13 can intermesh, and the other end of supporting rod 4 also extends
Go out outside box cover 2 and equipped with head block 14, head block 14 is fixed on the end at 4 end of supporting rod.
First sliding block 9 is mounted on screw rod 3 and is meshed with the screw thread of screw rod 3, and the first sliding block 9 and internal protective cover 52
One end is fixedly connected, and the other end of internal protective cover 52 extends outside box cover 2 and passes through the portion of strutting 15 to be connected with head block 14.
Portion 7 is strutted using macromolecule polymer material, in hollow column structure, and is provided with several equally distributed inflation ports thereon
15。
Second sliding block 10 is mounted on screw rod 3, and is clearance fit between the second sliding block 10 and screw rod 3 and swivel nut 8, and second
Sliding block 10 can be moved along screw rod 3 and swivel nut 8, and the second sliding block 10 is fixedly connected with one end of outer jointing jacket 51, outer jointing jacket 51
The other end extends outside box cover 2.
Third sliding block 11 is mounted on swivel nut 8 and is meshed with swivel nut 8.
It is specific as follows using process referring to Fig. 6-Fig. 8：
1st, percutaneous puncture, needle tubing are inserted into centrum at least 2mm；
2nd, Kirschner wire is inserted into, takes out needle tubing；
3rd, expander and surgery cannula are established operation path, takes out expander together through Kirschner wire chorista；
4th, underwent operative casing and Kirschner wire screw in drill bit pendulum model in centrum, take out drill bit and Kirschner wire；
5th, determine that the length of centrum channel meets the length requirement after the formation system struts；
6th, the head of former is placed in centrum channel；
7th, handle 1 is rotated clockwise, screw rod 3 starts to rotate, and the first sliding block 9 is moved along screw rod 3 to 8 direction of swivel nut, simultaneously
Third sliding block 11 is moved along swivel nut 8 to 1 direction of handle, and second sliding block 10 is also to 1 direction of handle under the promotion of third sliding block 11
It is mobile；Internal protective cover 52 moves under the drive of the first sliding block 9 to the direction of head block 14, and outer jointing jacket 51 is in the second sliding block
It is moved under 10 drive to 12 direction of nut, with the movement of internal protective cover 52 and outer jointing jacket 51, struts portion 7 in internal protective cover
It is slowly stretched out paragraph by paragraph out of outer jointing jacket 51 under 52 drive；Several inflation ports 15 are provided in portion 7 due to strutting, it is logical to strut portion 7
It crosses the gauffer around its axle center to fold out and strut paragraph by paragraph, until strutting completion（Strut portion struts process referring to Fig. 9-Figure 22）；
8th, while being strutted paragraph by paragraph in the portion that struts 7, strut portion 7 push head block 14 advance, due to head block 14 with
4 phase of supporting rod is fixed, and supporting rod 4 is also driven advance, is waited after the completion of strutting, and nut 12 is tightened in nut fixture block 13, this
Sample supporting rod 4 is just secured；
9th, counterclockwise rotation handle 1, screw rod 3 start negative direction rotation, and the first sliding block 9 is along screw rod 3 to 1 direction of handle
It is mobile, while third sliding block 11 is moved along the negative direction of swivel nut 8 to handle 1；Internal protective cover 52 under the drive of the first sliding block 9 to
12 direction of nut is moved, and is strutted portion 7 and is bounced back paragraph by paragraph under the drive of internal protective cover 52, while outer jointing jacket 51 is in the portion that struts 7
It is moved under promotion along swivel nut 8 and screw rod 3 to 1 direction of handle, struts that strutting for portion 7 is gradually smaller, and slowly to stretch be smooth to retraction
State（The retraction process in portion 7 is strutted referring to Figure 23-Figure 34）, formation system is taken out at this time；
10th, the injection bone cement in centrum cavity 16, centrum restore height, and reconstruction operations are completed.
Claims (4)
1. a kind of percutaneous bracing type vertebral forming system, including handle（1）And box cover（2）, it is characterized in that：In box cover（2）Interior peace
Equipped with screw rod（3）, supporting rod（4）, the first sliding block（9）, the second sliding block（10）, third sliding block（11）, outer jointing jacket（51）With it is interior
Protective case（52）；Wherein screw rod（3）Rotatably it is mounted on box cover（2）It is interior, one end and handle（1）It is fixedly connected, the other end
It is fixed on swivel nut（8）It is interior；Supporting rod（4）Movably it is located at internal protective cover（52）It is interior, internal protective cover（52）Movably it is located at
Outer jointing jacket（51）It is interior, supporting rod（4）One end extend box cover（2）Outside and equipped with intermeshing nut（12）With nut card
Block（13）, the other end also extends box cover（2）Outside and equipped with head block（14）；First sliding block（9）Mounted on screw rod（3）On
And and screw rod（3）It is meshed, the first sliding block（9）With internal protective cover（52）One end be fixedly connected, internal protective cover（52）It is another
Extend box cover in end（2）It is outer and pass through the portion of strutting（7）With head block（14）It is connected；Second sliding block（10）Mounted on screw rod
（3）It above and can be along screw rod（3）And swivel nut（8）It is mobile, the second sliding block（10）With outer jointing jacket（51）One end be fixedly connected, outside
Protective case（51）The other end extend box cover（2）Outside；Third sliding block（11）Mounted on swivel nut（8）Upper and and swivel nut（8）Mutually nibble
It closes；Screw rod（3）Flight pitch be more than swivel nut（8）Flight pitch, and screw rod（3）Hand of spiral and swivel nut（8）Screw thread
Direction is opposite.
2. percutaneous bracing type vertebral forming system according to claim 1, it is characterized in that：The screw rod（3）With handle（1）
The one end being connected is equipped with bearing（6）, screw rod（3）Pass through bearing（6）Rotatably it is mounted on box cover（2）It is interior.
3. percutaneous bracing type vertebral forming system according to claim 1, it is characterized in that：The nut（12）It is fixed on branch
Strut（4）The end of one end, nut fixture block（13）It is fixed on box cover（2）On, head block（14）It is fixed on supporting rod（4）It is another
The end at end.
4. percutaneous bracing type vertebral forming system according to claim 1, it is characterized in that：Described struts portion（7）Using
Macromolecule polymer material in hollow column structure, and is provided with several equally distributed inflation ports thereon（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839429.4A CN105496541B (en) | 2015-11-27 | 2015-11-27 | Percutaneous bracing type vertebral forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839429.4A CN105496541B (en) | 2015-11-27 | 2015-11-27 | Percutaneous bracing type vertebral forming system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105496541A CN105496541A (en) | 2016-04-20 |
| CN105496541B true CN105496541B (en) | 2018-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510839429.4A Active CN105496541B (en) | 2015-11-27 | 2015-11-27 | Percutaneous bracing type vertebral forming system |
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| Country | Link |
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| CN (1) | CN105496541B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787785A (en) * | 2002-12-20 | 2006-06-14 | Sdgi控股股份有限公司 | Curable media for implantable medical device |
| CN101810507A (en) * | 2010-04-29 | 2010-08-25 | 常州华森医疗器械有限公司 | Expanding type vertebral body shaper |
| CN201775671U (en) * | 2010-08-12 | 2011-03-30 | 徐世隆 | Instrument for percutaneous kyphoplasty (PKP) |
| EP2730246A1 (en) * | 2012-11-13 | 2014-05-14 | Chang Gung University | Apparatus for reinforcing bone and tools for mounting the same |
| CN205286511U (en) * | 2015-11-27 | 2016-06-08 | 周建明 | Percutaneous struts formula centrum forming system |
-
2015
- 2015-11-27 CN CN201510839429.4A patent/CN105496541B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787785A (en) * | 2002-12-20 | 2006-06-14 | Sdgi控股股份有限公司 | Curable media for implantable medical device |
| CN101810507A (en) * | 2010-04-29 | 2010-08-25 | 常州华森医疗器械有限公司 | Expanding type vertebral body shaper |
| CN201775671U (en) * | 2010-08-12 | 2011-03-30 | 徐世隆 | Instrument for percutaneous kyphoplasty (PKP) |
| EP2730246A1 (en) * | 2012-11-13 | 2014-05-14 | Chang Gung University | Apparatus for reinforcing bone and tools for mounting the same |
| CN205286511U (en) * | 2015-11-27 | 2016-06-08 | 周建明 | Percutaneous struts formula centrum forming system |
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| Publication number | Publication date |
|---|---|
| CN105496541A (en) | 2016-04-20 |
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Effective date of registration: 20181225 Address after: 324113 No. 20 Huiyuan Road, Shanhai cooperation area, Jiangshan Economic Development Zone, Quzhou, Zhejiang Patentee after: Zhejiang Kangci Medical Technology Co., Ltd. Address before: 324113 No. 20 Huiyuan Road, Shanhai cooperation area, Jiangshan Economic Development Zone, Quzhou, Zhejiang Patentee before: Zhou Jianming |
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Effective date of registration: 20201028 Address after: Hangzhou City, Zhejiang province 310002 Shangcheng District No. 631 Jiangcheng Road, building 4, room 307, Scarlett Jingyuan Patentee after: Zhou Jianming Address before: 324113, Huiyuan Road No. 20, Shanhai cooperation zone, Jiangshan Economic Development Zone, Zhejiang, Quzhou Patentee before: ZHEJIANG KANGCI MEDICAL TECHNOLOGY Co.,Ltd. |