CN202982181U - Bend rod device - Google Patents
Bend rod device Download PDFInfo
- Publication number
- CN202982181U CN202982181U CN 201220656614 CN201220656614U CN202982181U CN 202982181 U CN202982181 U CN 202982181U CN 201220656614 CN201220656614 CN 201220656614 CN 201220656614 U CN201220656614 U CN 201220656614U CN 202982181 U CN202982181 U CN 202982181U
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- rod
- rotating disk
- bar
- grip pressure
- excellent bar
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Abstract
The utility model relates to the technical field of medical appliances, in particular to a dedicated bend rod device, wherein the bend rod device is capable of bending a rod which needs to be embedded in a spine posterior operation to a needed radian accurately. The bend rod device is composed of rod holding poles (1), a top rod (2), a top rod device (3) and a connecting knob (4), wherein one rod holding pole is arranged on the left side, and the other rod holding role is arranged on the right side, and rod holding rings (1.1) are arranged at the tops of the rod holding poles (1). The rod holding rings (1.1) are used for shelving of a to-be-embedded rod (5). The bend rod device is simple in structure, convenient to use and low in cost. A scale is only needed to be read in the process of bending the rod, and the rod can be bent to the needed radian accurately, meanwhile tired-property damage which is caused by multiple-replication of bending the rod to the rod can be avoided.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to a kind ofly the rod that needs in posterior spinal operation to implant accurately to be bent to the curved rod device of the special use of required radian.
Background technology
In posterior spinal operation, nail-stick system commonly used carries out backbone correcting and fixes, because spinal column itself has three physiological bendings (cervical lordosis, thoracic kyphosis, kurtorachic), or the orthopedic fixing needs of deformity of spine, not often directly to insert straight rod in art, but insert again in body after rod is bent to suitable radian, purpose is to adapt to the original physiological bending of spinal column and/or correct deformity of spine.
Curved rod instrument commonly used is the fixing point adding pressure type at present, this general instrument of pliers that is similar to is simple, effectively, carries out curved rod but can not set radian, is completed by patient's rough estimate during curved rod, the radian that forms after rod is crooked is often inaccurate, needs excellent alternating bending.This class curved rod instrument is crooked radian quantitatively, and curved rod takes time and effort repeatedly, and causes the fatigue damage of rod, and disconnected excellent phenomenon easily appears in postoperative, can't satisfy the accurate requirement of present operation.
There is no both at home and abroad and a kind ofly the rod that needs in posterior spinal operation to implant accurately can be bent to the curved rod device of the special use of required radian.
The utility model content
The purpose of this utility model is to provide a kind of can accurately be bent to the rod that needs in posterior spinal operation to implant the curved rod device of the special use of required radian.
This utility model provides a kind of curved rod device, forms by holding excellent bar, top rod, the excellent device in top and connection button;
Wherein hold each of excellent bar left and right, every is held excellent bar is pole, the surface indicates the scale of expression length, and the concave point that has spacing to equate, holds the top of excellent bar and holds the rod ring; The effect of holding the rod ring is to shelve the rod (namely needing crooked rod) that needs implantation.
Top rod wherein is comprised of top caput, the excellent bar in top and top rod tail, and the top caput is positioned at the head end of top rod, and there is arc groove on the surface, and the effect of top caput is to snap in the crooked rod of wanting; Pushing up excellent bar is pole, and the surface indicates the scale of expression length; Push up the surface of excellent tail with the dentation draw-in groove.
Top rod device wherein is comprised of grip pressure handle, push rod and linking springs; The grip pressure handle is each of left and right, is connected with linking springs between two grip pressure handles, and the grip pressure handle is connected with the top rod by push rod.
Connection button wherein is divided into three layers, and the middle level is terminal pad, and both sides are rotating disk one and rotating disk two, and the three is oblate cylinder, and respectively there is a spinning button in the lateral surface central authorities of rotating disk one and rotating disk two; Terminal pad is provided with a vertical circular hole, holds the excellent bar in top flexible up and down; Rotating disk one and rotating disk two are equipped with a vertical circular hole, and holding respectively one, to hold excellent bar flexible up and down.
The surface of the excellent tail in described top is with the dentation draw-in groove, and this dentation draw-in groove is 10-20, and each dentation draw-in groove interval is even, is spaced apart 1-3mm.
Between described grip pressure handle and push rod with chain connection;
Described push rod with is connected with top rod, specifically push rod and the draw-in groove tabling that pushes up excellent tail.When holding two grip pressure bars, push rod is drawn close to the grip pressure handle, and the grip pressure bar is often held with a firm grip once, and the push rod draw-in groove of the top rod can being boosted unclamps the grip pressure bar, and linking springs struts the grip pressure bar to initial position, and push rod is stepped back a draw-in groove automatically.
Described connection button is the cross point of holding excellent bar, top rod, the excellent device in top.Terminal pad is provided with a vertical circular hole, and the internal diameter of circular hole and the excellent bar external diameter coupling in top can hold the excellent bar telescopic movable in top, the grip pressure button side chain connection of the excellent device of the tail side of terminal pad and top; Rotating disk one and rotating disk two lay respectively at the both sides of connecting axle, connect with the terminal pad embedding, and can be around the terminal pad left rotation and right rotation.Rotating disk one and rotating disk two are equipped with a vertical circular hole, the circular hole internal diameter with hold excellent bar external diameter coupling, can hold and hold excellent bar telescopic movable.The lateral surface of rotating disk one and the rotating disk two all spinning button head end of central authorities is convex dot shape, and size is complementary with the concave point on fixed bar surface, and when the spinning button screwed, it snapped in the concave point of holding on excellent bar, held excellent bar namely non-telescoping.
During use, at first measure length L (being arc length) and the central angle angle D corresponding to required radian of the rod that needs implantation, calculate arc radius length r, formula is r=L * 360/ (D * 2 π).At first hold with two the length that excellent bar stretches out rotating disk one and rotating disk two and transfer to arc radius length, tighten the spinning button, then straight rod is passed two and hold the rod ring, regulate two angles of holding excellent bar, be inconjunction with rotating disk one and rotating disk two rotations this moment, makes to hold rod ring and do not deviate from the two ends of straight rod and get final product.The arc groove of top caput is withstood rod, and preparation is namely carried out, and this moment is grip pressure grip pressure handle repeatedly, is arc radius length until push up excellent pole brand scale, namely completes once top clubs and does.Through the operation of multiple spot curved rod, straight rod accurately can be bent to required radian to straight rod.
Each parts of this utility model can be selected stainless steel.
This utility model can be held the material thickness of rod ring internal diameter size and curved rod device by the diameter setting of rod, make different specifications and models, also can be as required, and the excellent tail draw-in groove spacing size in design top.
This utility model is simple in structure, and is easy to use, and expense is cheap, only need read scale in the curved rod process, can be accurately that rod is curved to required radian, and the fatigue damage of having avoided simultaneously repeatedly repeatedly curved rod that rod is caused.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is connection button dependency structure enlarged diagram of the present utility model.
Structural representation when Fig. 3 is this utility model use.
Wherein: hold excellent bar 1, hold rod ring 1.1;
Push up excellent device 3, grip pressure handle 3.1, push rod 3.2, linking springs 3.3;
The specific embodiment
Now in conjunction with the embodiments and accompanying drawing, this utility model is further described, but enforcement of the present utility model is not limited in this.
Embodiment 1:
This utility model forms by holding excellent bar 1, top rod 2, the excellent device 3 in top and connection button 4.Holding excellent bar 1 top for two respectively has to hold a rod ring 1.1; Top rod 2 comprises top caput 2.1, the excellent bar 2.2 in top and pushes up excellent tail 2.3; Push up excellent device 3 and comprise two grip pressure handles 3.1, two push rods 3.2 and linking springs 3.3; Connection button 4 is oblate cylinder, and minutes three layers, both sides are respectively rotating disk 1 and rotating disk 2 4.3, and there is a spinning button 4.1.1 in the lateral surface central authorities of rotating disk one, and there is a spinning button 4.3.1 in the lateral surface central authorities of rotating disk two, and the middle level is terminal pad 4.2.
Rotating disk 1 and rotating disk 2 4.3 hold respectively one and hold excellent bar 1 and pass through, hold excellent bar 1 scalable in rotating disk, stretching out the length mark of rotating disk part is holding on excellent bar 1, scale value is that the rotating disk center of circle is to the length of holding rod ring 1.1, when the spinning button screws, can snap in the concave point of holding excellent bar 1 surface, hold excellent bar 1 namely non-telescoping.Terminal pad 4.2 holds the excellent bar 2.2 in top to be passed through, both sides are hinged with two grip pressure bars 3.1 of the excellent device 3 in top, push up excellent bar 2.2 interior scalable at connection button 4, the length mark that stretches out connection button 4 parts is on the excellent bar 2.2 in top, and scale value is that terminal pad 4.2 centers of circle are to the length of top caput 2.1.
Embodiment 2:
this utility model is easy to use, before needing curved rod in posterior spinal operation, first calculate arc radius length according to the length of rod and the central angle of needs bending arc, two are held excellent bar 1 stretches out rotating disk 1 and rotating disk 2 4.3 parts transfer to arc radius length, tighten the spinning button 4.3.1 on the spinning button 4.1.1 rotating disk two on rotating disk one, with straight rod pass two hold excellent bar 1 top hold rod ring 1.1, the horizontal cambered surface groove of top caput 2.1 is blocked rod, grip pressure handle 3.1 is held with a firm grip, push rod 3.2 will push up excellent tail 2.3 and push ahead a draw-in groove, unclamp grip pressure bar 3.1, linking springs 3.3 struts grip pressure bar 3.1 to initial position, push rod 3.2 is stepped back a draw-in groove automatically, grip pressure repeatedly, reach arc radius length until push up excellent bar 2.2 reference marks, namely completing once top clubs does, then, by rotatable turntable 1 and rotating disk 2 4.3, change top caput 2.1 vertex positions, straight rod is operated through the multiple spot curved rod, straight rod accurately can be bent to required radian.
Above demonstration and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; that describes in above-described embodiment and description just illustrates principle of the present utility model; this utility model also has various changes and modifications under the prerequisite that does not break away from this utility model spirit and scope, and these changes and improvements all fall in claimed this utility model scope.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a curved rod device, is characterized in that, it is by holding excellent bar (1), top rod (2), pushing up excellent device (3) and connection button (4) forms; Wherein hold each of about excellent bar (1), every is held excellent bar is pole, the surface indicates the scale of expression length, and the concave point that has spacing to equate, holds the top of excellent bar and holds rod ring (1.1);
Wherein top rod (2), by top caput (2.1), push up excellent bar (2.2) and the excellent tail in top (2.3) forms, the top caput is positioned at and pushes up excellent head end, and there is arc groove on the surface; Pushing up excellent bar is pole, and the surface indicates the scale of expression length; Push up the surface of excellent tail with the dentation draw-in groove;
Top rod device (3) wherein is comprised of grip pressure handle (3.1), push rod (3.2) and linking springs (3.3); The grip pressure handle is each of left and right, is connected with linking springs between two grip pressure handles, and the grip pressure handle is connected with the top rod by push rod;
Connection button wherein (4) is divided into three layers, and the middle level is terminal pad 4.2, and both sides are rotating disk 1 and rotating disk 2 4.3, and the three is oblate cylinder, and respectively there is a spinning button in the lateral surface central authorities of rotating disk one and rotating disk two; Terminal pad is provided with a vertical circular hole, holds the excellent bar in top flexible up and down; Rotating disk one and rotating disk two are equipped with a vertical circular hole, and holding respectively one, to hold excellent bar flexible up and down.
2. a kind of curved rod device according to claim 1, is characterized in that, the surface of the excellent tail in described top (2.3) is with the dentation draw-in groove, and this dentation draw-in groove is 10-20, and each dentation draw-in groove interval is even, is spaced apart 1-3mm.
3. a kind of curved rod device according to claim 1 and 2, is characterized in that, between described grip pressure handle (3.1) and push rod (3.2) with chain connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656614 CN202982181U (en) | 2012-12-03 | 2012-12-03 | Bend rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220656614 CN202982181U (en) | 2012-12-03 | 2012-12-03 | Bend rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202982181U true CN202982181U (en) | 2013-06-12 |
Family
ID=48553415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220656614 Expired - Fee Related CN202982181U (en) | 2012-12-03 | 2012-12-03 | Bend rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202982181U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9636181B2 (en) | 2008-04-04 | 2017-05-02 | Nuvasive, Inc. | Systems, devices, and methods for designing and forming a surgical implant |
| US9848922B2 (en) | 2013-10-09 | 2017-12-26 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| US9913669B1 (en) | 2014-10-17 | 2018-03-13 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| CN108498154A (en) * | 2018-04-08 | 2018-09-07 | 吕文德 | Foot-operated pedicle screw internal fixation stick curved rod device and its working method |
| CN108498153A (en) * | 2018-04-08 | 2018-09-07 | 管廷进 | Angle groove spinal pedicle internal fixation bar curved rod device and its working method |
| CN108852490A (en) * | 2018-04-08 | 2018-11-23 | 贾秀云 | Spinal pedicle internal fixation bar bending device and its working method |
| CN111297461A (en) * | 2020-02-26 | 2020-06-19 | 成都医学院第一附属医院 | Acetabulum anterior column quadrangular fracture dissection steel plate system |
| CN112451078A (en) * | 2020-11-27 | 2021-03-09 | 山东威高骨科材料股份有限公司 | Annular rod bending device and using method thereof |
| US11207132B2 (en) | 2012-03-12 | 2021-12-28 | Nuvasive, Inc. | Systems and methods for performing spinal surgery |
| US11576727B2 (en) | 2016-03-02 | 2023-02-14 | Nuvasive, Inc. | Systems and methods for spinal correction surgical planning |
-
2012
- 2012-12-03 CN CN 201220656614 patent/CN202982181U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9636181B2 (en) | 2008-04-04 | 2017-05-02 | Nuvasive, Inc. | Systems, devices, and methods for designing and forming a surgical implant |
| US11453041B2 (en) | 2008-04-04 | 2022-09-27 | Nuvasive, Inc | Systems, devices, and methods for designing and forming a surgical implant |
| US10500630B2 (en) | 2008-04-04 | 2019-12-10 | Nuvasive, Inc. | Systems, devices, and methods for designing and forming a surgical implant |
| US11207132B2 (en) | 2012-03-12 | 2021-12-28 | Nuvasive, Inc. | Systems and methods for performing spinal surgery |
| US9848922B2 (en) | 2013-10-09 | 2017-12-26 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| US9913669B1 (en) | 2014-10-17 | 2018-03-13 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| US10433893B1 (en) | 2014-10-17 | 2019-10-08 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| US10485589B2 (en) | 2014-10-17 | 2019-11-26 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| US11213326B2 (en) | 2014-10-17 | 2022-01-04 | Nuvasive, Inc. | Systems and methods for performing spine surgery |
| US11903655B2 (en) | 2016-03-02 | 2024-02-20 | Nuvasive Inc. | Systems and methods for spinal correction surgical planning |
| US11576727B2 (en) | 2016-03-02 | 2023-02-14 | Nuvasive, Inc. | Systems and methods for spinal correction surgical planning |
| CN108498153A (en) * | 2018-04-08 | 2018-09-07 | 管廷进 | Angle groove spinal pedicle internal fixation bar curved rod device and its working method |
| CN108498153B (en) * | 2018-04-08 | 2019-11-26 | 潘峰 | Angle groove spinal pedicle internal fixation bar curved rod device |
| CN108852490A (en) * | 2018-04-08 | 2018-11-23 | 贾秀云 | Spinal pedicle internal fixation bar bending device and its working method |
| CN108498154A (en) * | 2018-04-08 | 2018-09-07 | 吕文德 | Foot-operated pedicle screw internal fixation stick curved rod device and its working method |
| CN111297461A (en) * | 2020-02-26 | 2020-06-19 | 成都医学院第一附属医院 | Acetabulum anterior column quadrangular fracture dissection steel plate system |
| CN111297461B (en) * | 2020-02-26 | 2022-04-29 | 成都市第七人民医院 | Acetabulum anterior column quadrangular fracture dissection steel plate system |
| CN112451078B (en) * | 2020-11-27 | 2021-09-07 | 山东威高骨科材料股份有限公司 | Annular rod bending device and using method thereof |
| CN112451078A (en) * | 2020-11-27 | 2021-03-09 | 山东威高骨科材料股份有限公司 | Annular rod bending device and using method thereof |
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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: 20130612 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |