CN105250018A - Connector enabling orthopedic bar to freely stretch and retract and having angle compensation function - Google Patents
Connector enabling orthopedic bar to freely stretch and retract and having angle compensation function Download PDFInfo
- Publication number
- CN105250018A CN105250018A CN201510853121.5A CN201510853121A CN105250018A CN 105250018 A CN105250018 A CN 105250018A CN 201510853121 A CN201510853121 A CN 201510853121A CN 105250018 A CN105250018 A CN 105250018A
- Authority
- CN
- China
- Prior art keywords
- connector body
- extension
- orthopedic rod
- orthopedic
- compensation function
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
- A61B17/7007—Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit around the screw or hook heads
-
- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7023—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other with a pivot joint
-
- 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
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
-
- 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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7083—Tools for guidance or insertion of tethers, rod-to-anchor connectors, rod-to-rod connectors, or longitudinal elements
- A61B17/7086—Rod reducers, i.e. devices providing a mechanical advantage to allow a user to force a rod into or onto an anchor head other than by means of a rod-to-bone anchor locking element; rod removers
- A61B17/7088—Rod reducers, i.e. devices providing a mechanical advantage to allow a user to force a rod into or onto an anchor head other than by means of a rod-to-bone anchor locking element; rod removers wherein the rod is moved transverse to the axis of the bone anchor
Abstract
The invention discloses a connector enabling orthopedic bar to freely stretch and retract and having an angle compensation function. The connector comprises a connector body, a universal ball and locking screws. The connector body is provided with orthopedic bar penetrating holes, locking holes matched with the locking screws are formed perpendicular to the orthopedic bar penetrating holes, an extending part is arranged on one side wall of the connector body and provided with a spherical hole, a universal ball is installed in the spherical hole, the spherical hole and the universal ball are matched rotationally, and the universal ball is provided with an orthopedic bar penetrating hole and parallel to the orthopedic bar penetrating holes in the connector body. After two orthopedic bars are connected through the connector, the problem that long bars are different to connect after penetrating is solved, and the two bars can freely and longitudinally move relative to each other. A malformed spine can be induced to longitudinally and freely grow while spine malformation is properly controlled, the two bars can swing relative to each other in a certain angle range through the arrangement of the universal ball, constrains to left and right moving of the spine are reduced, and the flexibility of the spine is improved.
Description
Technical field
Medical apparatus and instruments technical field of the present invention, is specifically related to a kind ofly can make Orthopedic rod free-extension and the adapter of band angle compensation function.
Background technology
Deformity of spine refers to that one of spinal column or several sections depart from the bending of midspinal line, usually with increase or the reduction of processus aboralis or prolapse in the rotation of vertebral body and sagittal plane.It is a kind of deformity of spine of three-dimensional, and its incidence rate is about about 0.5-2% in teenager, can caused by various diseases.When skoliosis angle is excessive, or when presenting obvious progressive trend, just need to consider operative treatment; Otherwise serious and stiff deformity of spine can be developed into gradually, have a strong impact on heart and the respiratory function of infant, affect spinal function and cause paralysis, even life-threatening.The main purpose of operative treatment prevents deformity progress, recovery spine balance; Correction deformity as much as possible.At present deformity of spine is carried out to the ultimate principle of surgical orthopaedic, namely based on the metal grappling utensil (as pedicle screw, hook, steel wire) being fixed on different parts on spinal column, connected by strong metal bar, apply orthopedic force by instrument carries out orthopedic simultaneously, and forces to be fixed spinal column and to merge.
Clinically, in order to strengthen the fixing intensity of spinal column, or it is fixing to carry out prolongation at the sections that spinal column has been fixed, and in the growing rod treatment of children's's early onset deformity of spine, usually need to use coupling to carry out connecting between rod with rod, the coupling the most often used is at present adapter between rod, to be reliably to obtain between rod with rod stable connects for the original intention of coupling design, its version is, on a tetragonal body, process 2 parallel holes, hole wall is processed with lock-screw, two the excellent heads needing to connect are penetrated this two holes respectively to tail, locking is compressed again with lock-screw, namely connection is completed, as.
But, utilize coupling treatment children's early onset deformity of spine between existing rod to there is obvious drawback.On the one hand, row operation is all needed once every regular time (general 6-9 month), to appear coupling, the one-sided trip bolt unclamping it and connect with rod, and use and strut strength and make children's's spinal column obtain limited prolongation, object is the growth headspace for spinal column; Thus repeatedly for several times, after even tens of times, high postoperative complication must be brought to operation.On the other hand, by complete locked fixing between Orthopedic rod, Orthopedic rod cannot realize free-extension, limits spinal column free growth, and does not meet the principle of current biologic treatment.Developed one for this reason and can allow Orthopedic rod free-extension, the multipurpose connector being simultaneously with pendulum angle to compensate has very major and immediate significance.
Summary of the invention
The object of this invention is to provide and a kind ofly can make Orthopedic rod free-extension and the adapter of band angle compensation function.
The object of the present invention is achieved like this, comprise connector body, multi-directional ball and lock-screw, described connector body is provided with Orthopedic rod and penetrates hole, and vertical Orthopedic rod penetrates hole and arranges locking hole and coordinate with lock-screw, and on described connector body, a sidewall is provided with extension, described extension is provided with spherical pore, install multi-directional ball in described spherical pore, both are rotatably assorted, and described multi-directional ball are provided with Orthopedic rod and penetrate hole and to penetrate hole parallel with the Orthopedic rod on connector body.
After adopting this adapter to be coupled together by two Orthopedic rods, solve and insert the difficult problem that rod connection difficulty worn by long rod, 1# Orthopedic rod can be made to carry out freely vertically moving relative to 2# Orthopedic rod, while suitably controlling deformity of spine, the longitudinal free growth of spinal column of induction deformity, avoid the constraint to spinal growth, and avoid repeatedly repeatedly to strut and extend operation and spinal cord stretching for the threat of spinal function, arranging of multi-directional ball can make 1# Orthopedic rod swing in certain angle relative to 2# Orthopedic rod, decrease the constraint that spinal column is moved left and right, increase the pliability of spinal column, therefore also significantly reduce because spinal column two spontaneities of bringing that are fixed in one end merge risks.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the schematic top plan view of Fig. 1;
In figure: 1-connector body, 11-extension, 2-multi-directional ball, 3-lock-screw, 4-1# Orthopedic rod, 5-2# Orthopedic rod.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, but limited the present invention never in any form, based on any conversion that training centre of the present invention is done, all falls into scope.
As shown in Figure 1 and 2, the present invention includes connector body 1, multi-directional ball 2 and lock-screw 3, described connector body 1 is provided with Orthopedic rod and penetrates hole, vertical Orthopedic rod penetrates hole and arranges locking hole and coordinate with lock-screw 3, on described connector body 1, a sidewall is provided with extension 11, described extension 11 is provided with spherical pore, multi-directional ball 2 is installed in described spherical pore, both are rotatably assorted, and described multi-directional ball 2 are provided with Orthopedic rod and penetrate hole and to penetrate hole parallel with the Orthopedic rod on connector body 1.Orthopedic rod penetrates the diameter in hole according to the difference of Orthopedic rod diameter, has different specifications.Penetrate another root Orthopedic rod of multi-directional ball 2, can slide in the hole of multi-directional ball 2, also with the rotation of multi-directional ball 2, certain swing can be done.
Described connector body 1 is square, cuboid or cylindrical structure.
Described connector body 1 be square or cuboid time equal rounding.
Described extension 11 is integral type structure with described connector body 1.
Described locking hole at least arranges one.
Described connector body 1 is titanium alloy material.
Described extension 11 is titanium alloy material.
operation principle of the present invention and process:
When using this adapter, first loosened by lock-screw 3, Orthopedic rod 2# Orthopedic rod being penetrated connector body 1 penetrates in hole, and the length that traversing through end Orthopedic rod stretches out is 2 ~ 4mm.Tighten lock-screw 3, with lock-screw 3 Orthopedic rod compressed and fix.Penetrated by 1# Orthopedic rod in the hole of multi-directional ball 2, the extension elongation of traversing through end Orthopedic rod is 8 ~ 20mm again.1# Orthopedic rod can slide in the hole of multi-directional ball 2, and when Orthopedic rod needs to swing compensation, multi-directional ball 2 is rotated, and drives 1# Orthopedic rod to rotate, meets the demand that Orthopedic rod swings.
Claims (7)
1. one kind can make Orthopedic rod free-extension and the adapter of band angle compensation function, comprise connector body (1), multi-directional ball (2) and lock-screw (3), it is characterized in that: described connector body (1) is provided with Orthopedic rod and penetrates hole, vertical Orthopedic rod penetrates hole and arranges locking hole and coordinate with lock-screw (3), the described upper sidewall of connector body (1) is provided with extension (11), (11) are provided with spherical pore to described extension, multi-directional ball (2) is installed in described spherical pore, both are rotatably assorted, described multi-directional ball (2) is provided with Orthopedic rod and penetrates hole and to penetrate hole parallel with the Orthopedic rod on connector body (1).
2. according to claim 1ly can make Orthopedic rod free-extension and the adapter of band angle compensation function, it is characterized in that: described connector body (1) is square, cuboid or cylindrical structure.
3. according to claim 2ly can make Orthopedic rod free-extension and the adapter of band angle compensation function, it is characterized in that: described connector body (1) is equal rounding when square or cuboid.
4. according to claim 1ly can make Orthopedic rod free-extension and the adapter of band angle compensation function, it is characterized in that: described extension (11) and described connector body (1) are integral type structure.
5. according to claim 1ly can make Orthopedic rod free-extension and the adapter of band angle compensation function, it is characterized in that: described locking hole at least arranges one.
6. can make Orthopedic rod free-extension and the adapter of band angle compensation function according to claim 1 ~ 4 any one, it is characterized in that: described connector body (1) is titanium alloy material.
7. can make Orthopedic rod free-extension and the adapter of band angle compensation function according to claim 1 or 4, it is characterized in that: described extension (11) is titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853121.5A CN105250018B (en) | 2015-11-30 | 2015-11-30 | It is a kind of that Orthopedic rod can be made freely to stretch and with the connector of angle compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510853121.5A CN105250018B (en) | 2015-11-30 | 2015-11-30 | It is a kind of that Orthopedic rod can be made freely to stretch and with the connector of angle compensation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105250018A true CN105250018A (en) | 2016-01-20 |
| CN105250018B CN105250018B (en) | 2018-04-17 |
Family
ID=55090177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510853121.5A Expired - Fee Related CN105250018B (en) | 2015-11-30 | 2015-11-30 | It is a kind of that Orthopedic rod can be made freely to stretch and with the connector of angle compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105250018B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3406212A1 (en) * | 2017-05-24 | 2018-11-28 | UMC Utrecht Holding B.V. | Spinal distraction system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202161395U (en) * | 2011-07-27 | 2012-03-14 | 常州市康辉医疗器械有限公司 | Elastic orthopedic rod used for internal fixation of spine |
| US20130006305A1 (en) * | 2004-03-31 | 2013-01-03 | Depuy Spine Sarl | Spinal rod connector |
| US8430916B1 (en) * | 2012-02-07 | 2013-04-30 | Spartek Medical, Inc. | Spinal rod connectors, methods of use, and spinal prosthesis incorporating spinal rod connectors |
| CN205144697U (en) * | 2015-11-30 | 2016-04-13 | 昆明医科大学第二附属医院 | Can make orthopedic rod freely stretch out and draw back just takes angle compensation function's connector |
-
2015
- 2015-11-30 CN CN201510853121.5A patent/CN105250018B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130006305A1 (en) * | 2004-03-31 | 2013-01-03 | Depuy Spine Sarl | Spinal rod connector |
| CN202161395U (en) * | 2011-07-27 | 2012-03-14 | 常州市康辉医疗器械有限公司 | Elastic orthopedic rod used for internal fixation of spine |
| US8430916B1 (en) * | 2012-02-07 | 2013-04-30 | Spartek Medical, Inc. | Spinal rod connectors, methods of use, and spinal prosthesis incorporating spinal rod connectors |
| CN205144697U (en) * | 2015-11-30 | 2016-04-13 | 昆明医科大学第二附属医院 | Can make orthopedic rod freely stretch out and draw back just takes angle compensation function's connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3406212A1 (en) * | 2017-05-24 | 2018-11-28 | UMC Utrecht Holding B.V. | Spinal distraction system |
| US10610262B2 (en) | 2017-05-24 | 2020-04-07 | Umc Utrecht Holding B.V. | Spinal distraction system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105250018B (en) | 2018-04-17 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20191130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |