CN100571646C - Metal tennis balled vertebrae shaping apparatus - Google Patents
Metal tennis balled vertebrae shaping apparatus Download PDFInfo
- Publication number
- CN100571646C CN100571646C CNB2004100861204A CN200410086120A CN100571646C CN 100571646 C CN100571646 C CN 100571646C CN B2004100861204 A CNB2004100861204 A CN B2004100861204A CN 200410086120 A CN200410086120 A CN 200410086120A CN 100571646 C CN100571646 C CN 100571646C
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- wire netting
- vertebral body
- netting ball
- ball
- support ring
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
- A61B17/7098—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants wherein the implant is permeable or has openings, e.g. fenestrated screw
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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
- A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
- A61B17/8852—Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc
- A61B17/8858—Tools for expanding or compacting bones or discs or cavities therein capable of being assembled or enlarged, or changing shape, inside the bone or disc laterally or radially expansible
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Medical Informatics (AREA)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
For effectively strutting the compression fracture vertebral body, patent of the present invention provides a kind of novel metal tennis vertebral body shaped device, comprising: vertebral body puncture needle, guide pin, working column, working column handle, wire netting ball, wire netting ball expansion and recovery system.Wire netting ball turns to sphere or oval spherical by high-elastic wire cross, tractive two end supports ring can elongate wire netting ball and be elongated shape, by wire netting ball expansion and recovery system wire netting ball is sent in the vertebral body, pushing the two end supports ring again can return to original shape and produce the huge power that struts, effectively strut compressed vertebral body, the tractive support ring elongates wire netting ball for withdrawing from behind the elongated shape in vertebral body then, refills bone cement or other vertebral body reinforcing material.But also be retained in the vertebral body behind the support ring at fixing metal tennis two ends, form " reinforced concrete " structure with filler.Thereby reach support, the fixing purpose of compression fracture vertebral body, alleviating pain and early recovery normal activity.
Description
Technical field
Patent of the present invention belongs to medical apparatus and instruments.Be mainly used in resetting of vertebral compression fracture that osteoporosis or tumor cause, the pedicle or the pedicle of vertebral arch outside enter vertebral body inside and strut compressed vertebral body.
Background technology
Along with the aged crowd's of society increase, the osteoporotic vertebral compression fracture increases year by year.Nearly 200,000,000 patients with osteoporosis in the present whole world, there are 5,000 ten thousand people in China, women's prevalence more than 50 years old reaches 50～70%, the elderly men sickness rate reaches 30%, in crowd's osteoporotic vertebral compression fracture incidence rate more than 70 years old is 20%, postmenopausal women's incidence rate is 16%, the Beijing area more than 50 years old women's vertebral compression fracture sickness rate be 15%.The U.S. estimates at 700,000 routine osteoporotic vertebral compression fracture patients every year, and wherein 1/3 becomes chronic pain, and annual for this reason cost reaches 17,000,000,000 dollars.Vertebral body hemangioma, myeloma and other many vertebral tumors cause the mechanical strength of vertebral body, also can cause vertebral compression fracture.Vertebral compression fracture shows as mainly that pain, carrying out property spinal column are subsided, kyphosis deformity, have a strong impact on patient's quality of life, body movement, mental health and life-span, traditional therapy comprise lie up, method such as brace treatment, the medicine that relieves the pain, osteosporosis resistant medicament, the patient often be difficult to stand and curative effect relatively poor, cutting operation treatment wound is bigger, and operation internal fixation difficulty and spinal fusion effect that osteoporosis causes are relatively poor.
Frenchman Herve Deramond carried out the first routine percutaneous vertebral body plastic operation in 1984, by in vertebral body, injecting bone cement treatment painful cervical vertebral body hemangioma, obtain promising result, the North America was carried out the first routine vertebral body plastic operation treatment osteoporotic vertebral compression fracture in 1993, carry out protruding urethroptasty behind the first routine percutaneous in 1998, before the bone cement filling, strut compressed vertebral body with sacculus earlier.The protruding urethroptasty of vertebral body plastic operation and back treatment vertebral compression fracture effect is good, can make that pain alleviates rapidly in 67%-100% patient's postoperative 24 hours, is a kind of safer Minimally Invasive Surgery.But vertebral body plastic operation can not make compression vertebral body distraction reduction, and bone cement epidural or the other seepage of vertebra appear in the patient of 30%-70%.The back protruding urethroptasty by sacculus strut compress vertebral body, form cavity, low pressure injection bone cement minimizing seepage in recovery vertebral height, minimizing kyphosis deformity, the vertebral body, but sharp keen bone edge usually punctures sacculus, and sacculus can not orientation strut, often escape into inanition and weakness zone, cause the compression vertebral body to strut failure, and it is limited to recover vertebral body intensity.
Summary of the invention
For the vertebral body with compression fracture effectively struts; patent of the present invention provides a kind of new type of metal tennis vertebral body shaped device; wire netting ball is sent in the vertebral body by the pedicle of vertebral arch or the pedicle of vertebral arch outside; effectively strut compressed vertebral body; and then filling bone cement or other vertebral body reinforcing material; wire netting ball also can be retained in the vertebral body and filler forms " reinforced concrete " structure jointly; better recover vertebral body intensity, support and fixing compression fracture vertebral body thereby reach; alleviating pain; correct kyphosis deformity; reduce the seepage of filler and the purpose of early recovery normal activity.
Patent of the present invention solves its technical problem and adopts following technical scheme.Metal tennis balled vertebrae shaping apparatus comprises: vertebral body puncture needle, guide pin, working column, working column handle, wire netting ball, wire netting ball expansion and recovery system.Puncture needle enters front pillar in the vertebral body outside percutaneous puncture pedicle or the pedicle of vertebral arch accurately under X line guiding, inserts guide pin after withdrawing from the puncture needle inner core, and then withdraws from puncture needle, inserts working column by guide pin.Wire netting ball expansion and recovery system can be stretched as elongated shape with wire netting ball by tractive wire netting ball support ring; by working column extended wire netting ball is sent in the vertebral body; rotation expansion and recovery system tail end extrusion metal tennis support ring; it is original spherical or oval spherical and produce the huge power that struts that wire netting ball is returned to; thereby vertebral body distraction reduction with compression; wire netting ball can be withdrawn from or be retained in the vertebral body; and then filling polymethyl methacrylate bone cement; calcium-phosphate cement or other vertebral body reinforcing material reach to strut and compress vertebral body; correct kyphosis deformity; support and the fixing vertebral body of compression fracture; the purpose of alleviating pain and early recovery normal activity.
Wire netting ball by the high-elastic wire cross coiling of diameter 0.01mm～2mm form spherical or oval spherical, diameter 10mm～50mm, two ends have can fixed support ring, middle hollow out.Tinsel should have excellent biological compatibility and elastomeric property, and the support ring by the tractive two ends can elongate the elongated shape into diameter 1-50mm, and the support ring at extruding two ends can return to original shape again and produce the huge strength that struts.Wire netting ball struts the support ring that can lock two ends behind the vertebral body of compression, keep certain shape and be retained in the vertebral body for a long time, should not produce any toxicity, with vertebral body reinforcing material formation " reinforced concrete " structure of filling, to reach enough mechanical strength and support effects.Wire netting ball also can elongate wire netting ball for elongated strip shaped by strutting with recovery system tractive support ring, withdraws from vertebral body then.
The advantage of patent of the present invention is: (1) wire netting ball can be avoided being punctured by sharp keen bone edge; (2) wire netting ball is orientable struts the compression vertebral body and can not escape to the strength weakness zone, makes that to strut effect more effective; (3) wire netting ball can form " reinforced concrete " structure with the vertebral body reinforcing material of implanting, and bracing force is more powerful; (4) wire netting ball refills the vertebral body reinforcing material after effectively strutting vertebral body, rectifiable kyphosis deformity; (5) wire netting ball refills the vertebral body reinforcing material after effectively strutting vertebral body, can reduce complication such as seepage, fat embolism, pulmonary infarction; (6) vertebral body be sent into and be withdrawn to wire netting ball can by working column, reaches the purpose of minimally-invasive treatment vertebral compression fracture.
Below in conjunction with drawings and Examples patent of the present invention is described further.
Description of drawings
Fig. 1 is the puncture needle of patent of the present invention.
Fig. 2 is the guide pin of patent of the present invention.
Fig. 3 is the working column and the working column handle of patent of the present invention.
Fig. 4 is the wire netting ball of patent of the present invention.
Fig. 5 is that the wire netting ball of patent of the present invention struts and recovery system.
The specific embodiment 1
Metal tennis balled vertebrae shaping apparatus need shift to an earlier date sterilization, directly uses on operating-table.The patient gets the ventricumbent position, puncture needle enters the vertebral body middle front part by pedicle of vertebral arch or pedicle of vertebral arch outside percutaneous puncture under the guiding of X line, withdraw from the puncture needle inner core then, insert guide pin behind the puncture needle and puncture needle withdrawn from and keep guide pin, working column is inserted vertebral body by guide pin.Rotating metallic tennis expansion counterclockwise and recovery system tail end, support ring by the tractive two ends is stretched as elongated shape with wire netting ball, by working column extended wire netting ball is sent into front pillar in the vertebral body, expansion of clockwise direction rotating metallic tennis and recovery system tail end under the X line monitors, by extrusion metal tennis two end supports ring wire netting ball is returned to original spherical or oval spherical and can produce the huge power that struts, thereby with the vertebral body distraction reduction of compression fracture.Counterclockwise the rotating metallic tennis is expanded and the recovery system tail end then, the support ring at tractive two ends is stretched as elongated shape again with wire netting ball, by working column wire netting ball is withdrawn from vertebral body, then by working column low pressure filling polymethyl methacrylate bone cement or other vertebral body reinforcing material, thereby strut the compression vertebral body, correct kyphosis deformity, support and fixedly vertebral body, the reduction of patient pain of compression fracture.
The specific embodiment 2
Metal tennis balled vertebrae shaping apparatus is the disposable use of aseptic packaging.Puncture needle enters front pillar in the vertebral body by pedicle of vertebral arch or pedicle of vertebral arch outside approach percutaneous puncture under X line guiding, withdraws from the puncture needle inner core and inserts guide pin, withdraws from puncture needle and keeps guide pin, withdraws from guide pin after by guide pin working column being inserted vertebral body.The expansion of wire netting ball and recovery system are sent wire netting ball into the vertebral compression fracture position by working column, expansion of rotation wire netting ball and recovery system tail end under the X line monitors, by extrusion metal tennis two end supports ring wire netting ball is returned to sphere or oval spherical, thereby produce the vertebral body distraction reduction of the huge power that struts compression fracture.Expansion of rotating metallic tennis and recovery system inner core fix on the fixed position with wire netting ball two end supports ring lock then, withdraw from wire netting ball expansion and recovery system then and wire netting ball is retained in the vertebral body, inject the vertebral body reinforcing material by working column low pressure, form " reinforced concrete " structure with wire netting ball, to reach enough mechanical strengths and more powerful support effect.
Claims (5)
1. metal tennis balled vertebrae shaping apparatus is used for vertebral body behind the vertebral compression fracture and struts and reset, and comprising: percutaneous vertebral body puncture needle, guide pin, wire netting ball working column, working column handle, wire netting ball, wire netting ball expansion and recovery system; There is support ring at described wire netting ball two ends; Described wire netting ball expansion and recovery system, inner core by rotation or expansion of extrusion metal tennis and recovery system tail end, the support ring at tractive wire netting ball two ends elongates wire netting ball and is elongated shape, and send in the vertebral body by working column, the support ring at wire netting ball expansion and recovery system extrusion metal tennis two ends returns to original form with wire netting ball and produces the huge power that struts, wire netting ball expansion and recovery system are by the inner core of expansion of rotating metallic tennis and recovery system, the support ring at wire netting ball two ends is locked in certain position, and wire netting ball is retained in the vertebral body, wire netting ball expansion and recovery system are by the tail end of expansion of rotating metallic tennis and recovery system, the support ring at tractive wire netting ball two ends elongates wire netting ball and is elongated shape, and withdraws from vertebral body by working column.
2. metal tennis balled vertebrae shaping apparatus according to claim 1, it is characterized in that, described percutaneous vertebral body puncture needle is the trocar of different thicknesses, the tip is sharp keen inclined-plane, vertebra shape or rib-loop shape, tail end is that plastics or metal handle are convenient to control, percutaneous puncture or enter the vertebral body middle front part through little otch pedicle or the puncture of the pedicle of vertebral arch outside under X line guiding.
3. according to claims 1 described metal tennis balled vertebrae shaping apparatus, it is characterized in that the sphere that described wire netting ball is formed by high-elastic wire cross coiling, diameter 10mm～50mm, middle hollow out, wire diameter 0.01mm～2mm.
4. metal tennis balled vertebrae shaping apparatus according to claim 3, it is characterized in that, described wire netting ball two ends have with fixed support ring, middle hollow out, support ring by the tractive two ends is the elongated shape of diameter 1～50mm with the wire netting ball elongation, and the support ring at extruding two ends returns to original shape and produces the huge power that struts; The support ring of wire netting ball is locked in certain position, thereby bears bigger stress.
5. metal tennis balled vertebrae shaping apparatus according to claim 3, it is characterized in that, described high-elastic tinsel has elastomeric property and excellent biological compatibility, and for stainless steel silk, Nitinol are made, the long-term reservation, foreign body reflection, anaphylactoid toxicity took place in vivo and not; Tinsel has favorable elasticity and strain property, can return to original shape after the removal external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100861204A CN100571646C (en) | 2004-10-27 | 2004-10-27 | Metal tennis balled vertebrae shaping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100861204A CN100571646C (en) | 2004-10-27 | 2004-10-27 | Metal tennis balled vertebrae shaping apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765333A CN1765333A (en) | 2006-05-03 |
| CN100571646C true CN100571646C (en) | 2009-12-23 |
Family
ID=36741589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100861204A Expired - Fee Related CN100571646C (en) | 2004-10-27 | 2004-10-27 | Metal tennis balled vertebrae shaping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100571646C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2400908A1 (en) * | 2009-02-26 | 2012-01-04 | DePuy International Limited | Support structure implant for a bone cavity |
| GB0903247D0 (en) * | 2009-02-26 | 2009-04-08 | Depuy Int Ltd | Support structure implant for a bone cavity |
| CN103654923A (en) * | 2012-09-19 | 2014-03-26 | 上海微创医疗器械（集团）有限公司 | Support system capable of preventing bone cement leakage and application thereof |
-
2004
- 2004-10-27 CN CNB2004100861204A patent/CN100571646C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101810507B (en) * | 2010-04-29 | 2012-09-05 | 常州华森医疗器械有限公司 | Expanding type vertebral body shaper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1765333A (en) | 2006-05-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GENERAL HOSPITAL OF CHINESE PLA Free format text: FORMER OWNER: WANG YAN Effective date: 20131119 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131119 Address after: 100853 Fuxing Road, Beijing, Haidian District, No. 28 Patentee after: General Hospital of Chinese PLA Address before: 100853 Department of orthopedics, PLA General Hospital, 28 Fuxing Road, Beijing, Haidian District, China Patentee before: Wang Yan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20151027 |
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| EXPY | Termination of patent right or utility model |