CN102488548B - Internal fixing device and internal fixing method of vertebral columns - Google Patents
Internal fixing device and internal fixing method of vertebral columns Download PDFInfo
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- CN102488548B CN102488548B CN 201110391417 CN201110391417A CN102488548B CN 102488548 B CN102488548 B CN 102488548B CN 201110391417 CN201110391417 CN 201110391417 CN 201110391417 A CN201110391417 A CN 201110391417A CN 102488548 B CN102488548 B CN 102488548B
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- screw
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Abstract
The invention discloses an internal fixing device of vertebral columns. Each pedicle screw of the internal fixing device comprises a screw seat and a screw body, wherein the screw seat is provided with a first installation groove and a second installation groove, and the screw body is coaxial with the first installation groove. The invention further provides an internal fixing method of the vertebral columns, which comprises the following steps of determining positions where the pedicle screws are implanted, implanting the screw bodies into pedicles along the first installation grooves, and enabling the screw bodies to be finally connected with the screw seats; installing and fixing short bars in second installation grooves of adjacent two pedicle screws; and installing long bars in firstinstallation grooves of a plurality of pedicle screws. In the process of cutting off vertebral bodies, relative fixing and stability of two vertebral bodies can be achieved by means of the fixing of the pedicle screws. After restoration operation is finished, the short bars do not need dismounting so that possibility of losing restoration during an operation is remarkably reduced, and safe reliability of the operation is remarkably improved. In addition, even though the pedicle screws have simple structures, the pedicle screws meet needs of internal fixing of the vertebral columns, and operation risks are greatly reduced.
Description
Technical field
The present invention relates to medical instruments field, particularly relate to a kind of internal fixation of spine device.In addition, the invention still further relates to a kind of internal fixation of spine method.
Background technology
The application of internal fixation of spine technology has had the history of decades.It is generally acknowledged that internal fixation of spine truly starts from the 1950's, PaulHarrington is Harrington system (Ha Shi rod) for correcting scoliosis and keeping orthopedic the first way of escape internal fixation system of having developed, and has reported the clinical practice result in 1962.At 20 century 70s, along with " segmental internal fixation of spine " theoretical generation, the once fashionable whole world once of Luque internal fixation system of going in ring; Thereafter C-D (Cotrel-Dubousset) internal fixation system has been born in the eighties in 20th century.Along with the development of spinal biomechanics research and material science, the internal fixation of spine technology has obtained huge advance made, to such an extent as to be widely applied in the operative treatments such as spinal column degenerative disease, tumor of spine, wound Spondylitis.
The surgical operation step of this technology is as follows:
1, prepare before the art, carry out pedicle nail diameter, length, enter to follow closely the selection of angle;
2, pedicle of vertebral arch location and nail road are prepared, and entry point is selected and the nail road is prepared;
3, implant pedicle nail;
4, curved rod; Curved rod comprises curved rod and external curved rod dual mode in the body, and curved rod requires rod that more accurate plasticity is arranged, and inserts smoothly in the U-shaped groove of pedicle nail guaranteeing, and realizes resetting;
5, dress rod, pressure bar, interim locking, use the breast-stroke pincers to operate, this process mainly is in order rod to be pressed onto the U-shaped trench bottom of pedicle nail, the curved rod operation, that be difficult to can be with the accurate moulding vertebral body curve to the patient of rod, in order smoothly rod to be packed into, have to use a large amount of supporting apparatuses to carry out pull-rod, pressure bar operation, because individual variation, sometimes operation can be very difficult, and the pressure bar instrument of usefulness comprises usually: pressure bar device, breast-stroke clamp, wave pincers, pressure bar device etc.;
6, orthopedic resetting;
7, final locking is with the plug screw locking rod.
In the restoring backbone process, some patients were probably needs to carry out the part or all of excision operation of vertebral body.Behind the vertebral resection, be subjected to the ligament tractive, the distance of the vertebral body of adjacent segment can reduce, and easily causes the serious risks such as nerve or blood vessel injury.And in the corpus vertebrae replacement process, all can use other to strut or pressurizing tool carries out resetting of each sections; To lose in order preventing from resetting, all to need behind each reset operation rod is locked in advance with fixing.Resetting of human spine is difficult to once finish, need reset operation repeatedly, this just requires to carry out the operation of unclamping locking nut and tightening locking nut repeatedly in reseting procedure, this will certainly cause the restoring backbone of part to lose, thereby has affected final reset effect.
Therefore, how avoiding producing risk and reset in the restoring backbone operation process and lose, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of internal fixation of spine device and internal fixation method, the security reliability that this inner fixing device and internal fixation method can Effective Raise spinal column fixing operations is for extensive patients provides the more operation service of highly effective and safe.
For achieving the above object, the invention provides a kind of internal fixation of spine device, its pedicle nail comprises nail seat and rivet nut, and described nail seat has the first mounting groove and the second mounting groove, and described rivet nut is coaxial with described the first mounting groove.
Preferably, described nail seat and described rivet nut are threaded connection.
Preferably, described rivet nut comprises the connecting portion that is connected with described nail seat, and the joint portion that is connected with vertebral body, and described joint portion is provided with bone thread and the mechanical whorl that pitch equates, described bone thread is single thread, and described mechanical whorl is double thread or multi start thread.
Preferably, described connecting portion has tapered thread, and described nail seat has the bellmouth that cooperates with described tapered thread.
Preferably, described connecting portion has straight thread, and the top of described connecting portion is fixedly connected with positive stop, and described nail seat has the connecting hole that cooperates with described straight thread, and the limiting stand that cooperates with described positive stop.
The present invention also provides a kind of method of spinal fixation, comprises the following steps:
Determine to implant the position of pedicle nail, rivet nut is implanted pedicle of vertebral arch along the first mounting groove, and finally link to each other with nail seat; Stub and fixing is installed in the second mounting groove of two adjacent pedicle nails; Long rod is installed in the first mounting groove of a plurality of pedicle nails.
Internal fixation of spine device provided by the present invention, comprise some pedicle nails and the long rod that is connected some pedicle nails, pedicle nail comprises nail seat and rivet nut, unlike the prior art be, the nail seat of pedicle nail provided by the present invention has the first mounting groove and the second mounting groove, and described rivet nut is coaxial with described the first mounting groove.In the internal fixation of spine operation, utilize the fixedly position of nail seat of rivet nut, in the second mounting groove of two adjacent pedicle nails, stub is installed again, at last long rod is installed in the first mounting groove.Like this, utilize the second mounting groove can fix the relative position of two pedicle nails, fix simultaneously the part spinal column that is fixedly connected with two pedicle nails, after the multistage spinal column fixes respectively, recycling the long rod of installing in the second mounting groove links together the multistage spinal column, form complete internal fixation of spine, reach the purpose of operation.In the vertebral resection process, because the fixing of pedicle nail being arranged, can realize that two is interpyramidal relatively fixing and stable; And reset finish after, do not need to remove stub, the probability that occurring in the operation resets loses is obviously reduced, the security reliability of operation obviously improves.And, although pedicle nail provided by the present invention is simple in structure, satisfied the needs of internal fixation of spine, greatly reduce operation risk.
A kind of preferred embodiment in, described nail seat and described rivet nut are threaded connection.Nail seat comprises the first mounting groove and the second mounting groove, and according to the actual needs of performing the operation, need to the direction vertical with the spinal column cardinal principle arranging of the first mounting groove and the second mounting groove, make the width of nail seat larger, if nail seat and rivet nut are the integral type structure, when pedicle nail is installed, along with the rotation of rivet nut, nail seat is easy to interfere with spinal column, and its installation difficulty is large.Be threaded connection then easily head it off, when pedicle nail is installed nail seat be placed on the relevant position, rivet nut is passed the connecting hole of both threaded engagement, with fixing nail seat when spinal column is connected, its installation effectiveness is high, and difficulty is little, the enforcement that is conducive to perform the operation.
In another preferred embodiment, described rivet nut comprises the connecting portion that is connected with described nail seat, and the joint portion that is connected with vertebral body, and described joint portion is provided with bone thread and the mechanical whorl that pitch equates, described mechanical whorl is double thread or multi start thread.The pitch of bone thread and mechanical whorl equates, can guarantee that bone thread screws in vertebral body identical with the individual pen process that mechanical whorl screws in nail seat, avoids occurring the generation of situations such as interfering.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of pedicle nail provided by the present invention;
Fig. 2 is the explosive view of pedicle nail shown in Figure 1;
Fig. 3 is the structural representation of rivet nut the first specific embodiment provided by the present invention;
Fig. 4 is the structural representation of rivet nut the second specific embodiment provided by the present invention.
The specific embodiment
Core of the present invention provides a kind of internal fixation of spine device and internal fixation method, and the security reliability that this inner fixing device and internal fixation method can Effective Raise spinal column fixing operations is for extensive patients provides the more operation service of highly effective and safe.
Need to prove, long rod as herein described and stub are the device in the spinal column fixing operation in the prior art, and stub is used for connecting adjacent two pedicle nails, and the length of long rod is used for connecting a plurality of pedicle nails greater than stub.Should be appreciated that the device name that adopts should not limit the protection domain of this patent herein.
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of specific embodiment of pedicle nail provided by the present invention; Fig. 2 is the explosive view of pedicle nail shown in Figure 1.
Internal fixation of spine device provided by the present invention, comprise some pedicle nails and the long rod that is connected some pedicle nails, pedicle nail comprises nail seat 1 and rivet nut 2, unlike the prior art be, the nail seat 1 of pedicle nail provided by the present invention has the first mounting groove 11 and the second mounting groove 12, and rivet nut 2 is coaxial with the first mounting groove 11.In the spinal column fixing operation, utilize the fixedly position of nail seat 1 of rivet nut 2, in the second mounting groove 12 of two adjacent pedicle nails, stub is installed again, at last long rod is installed in the first mounting groove 11.Like this, utilize the second mounting groove 12 can fix the relative position of adjacent two pedicle nails, fix simultaneously the part spinal column that is fixedly connected with two pedicle nails, after the multistage spinal column fixes respectively, recycling the long rod of installing in the first mounting groove 11 links together the multistage spinal column, form complete spinal column and fix, reach the purpose of operation.
In the vertebral resection process, because the fixing of pedicle nail being arranged, can realize that two is interpyramidal relatively fixing and stable; And reset finish after, do not need to remove stub, the probability that occurring in the operation resets loses is obviously reduced, the security reliability of operation obviously improves.And, although pedicle nail provided by the present invention is simple in structure, satisfied the needs of internal fixation of spine, greatly reduce operation risk.
In a kind of concrete embodiment, nail seat 1 can be threaded connection with rivet nut 2.Nail seat 1 comprises the first mounting groove 11 and the second mounting groove 12, and according to the actual needs of performing the operation, need to the direction vertical with the spinal column cardinal principle arranging of the first mounting groove 11 and the second mounting groove 12, make the width of nail seat 1 larger, if nail seat 1 is the integral type structure with rivet nut 2, when pedicle nail is installed, along with the rotation of rivet nut 2, nail seat 1 is easy to interfere with spinal column, and its installation difficulty is large.Be threaded connection then easily head it off, when pedicle nail is installed nail seat 1 be placed on the relevant position, rivet nut 2 is passed the connecting hole of both threaded engagement, with fixing nail seat 1 when spinal column is connected, its installation effectiveness is high, and difficulty is little, the enforcement that is conducive to perform the operation.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the structural representation of rivet nut the first specific embodiment provided by the present invention; Fig. 4 is the structural representation of rivet nut the second specific embodiment provided by the present invention.
In further embodiment, rivet nut 2 comprises the connecting portion 21 that is connected with nail seat 1, and the joint portion 22 that is connected with vertebral body, and joint portion 22 is provided with bone thread 221 and the mechanical whorl 222 that pitch equates, bone thread 221 is single thread, and mechanical whorl 222 is double thread or multi start thread.The pitch of bone thread 221 and mechanical whorl 222 equates, can guarantee that bone thread 221 screws in vertebral body identical with the individual pen process that mechanical whorl 222 screws in nail seat, avoids occurring the generation of situations such as interfering.
In the concrete embodiment of the first, connecting portion 21 has tapered thread, nail seat 1 has the bellmouth that cooperates with tapered thread, as shown in Figure 4, connecting portion 21 is tapered thread, and along with rivet nut 2 and cooperating of spinal column deepen continuously, tapered thread constantly screws in bellmouth, until be fixed on bellmouth inside, rivet nut 2 and nail seat 1 are fixed together.It is dark that the mode of being connected of tapered thread and bellmouth can prevent effectively in the operation process that rivet nut 2 screwed in, and can prevent that also rivet nut 2 and nail seat 1 break away from, more reliable when making long rod fixedly.
In the concrete embodiment of the second, connecting portion 21 has straight thread, and the top of connecting portion 21 is fixedly connected with positive stop 23, and nail seat 1 has the connecting hole that cooperates with straight thread, and the limiting stand that cooperates with positive stop 23.When rivet nut 2 is installed, straight thread cooperates with connecting hole, when being screwed into to a certain degree, positive stop 23 cooperates with limiting stand, make rivet nut 2 can not continue to screw in, can prevent effectively equally in the operation process that rivet nut 2 screwed in dark, can prevent that also rivet nut 2 and nail seat 1 break away from, more reliable when making long rod fixedly.
Except above-mentioned internal fixation of spine device, the present invention also provides a kind of internal fixation of spine method, comprises the following steps:
S11, the position of determining to implant pedicle nail are implanted pedicle of vertebral arch with rivet nut 2 along the first mounting groove 11, and are finally linked to each other with nail seat 1;
The second mounting groove 12 interior installation stubs of S12, adjacent two pedicle nails are also fixing;
S13, long excellent in the first mounting groove 11 interior installations of a plurality of pedicle nails.
Utilize the stub of the second mounting groove 12 can fix the relative position of adjacent two pedicle nails, fix simultaneously the part spinal column that is fixedly connected with two pedicle nails, after the multistage spinal column fixes respectively, recycling the long rod of installing in the first mounting groove 11 links together the multistage spinal column, form complete spinal column and fix, reach the purpose of operation.Before this installs long rod, do not need to remove stub, the probability that occurring in the operation resets loses is obviously reduced, the security reliability of operation obviously improves.
Above internal fixation of spine device provided by the present invention and internal fixation method are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (5)
1. internal fixation of spine device, its pedicle nail comprises nail seat and rivet nut, it is characterized in that, and described nail seat has the first mounting groove and the second mounting groove, and described rivet nut is coaxial with described the first mounting groove;
Also comprise long rod and stub, described stub is used for being installed in described second mounting groove of every adjacent two described pedicle nails, and described long rod is used for being installed in described the first mounting groove.
2. internal fixation of spine device according to claim 1 is characterized in that, described nail seat and described rivet nut are threaded connection.
3. internal fixation of spine device according to claim 1 and 2, it is characterized in that, described rivet nut comprises the connecting portion that is connected with described nail seat, and the joint portion that is connected with vertebral body, described joint portion is provided with bone thread and the mechanical whorl that pitch equates, described mechanical whorl is double thread or multi start thread.
4. internal fixation of spine device according to claim 3 is characterized in that, described connecting portion has tapered thread, and described nail seat has the bellmouth that cooperates with described tapered thread.
5. internal fixation of spine device according to claim 3, it is characterized in that, described connecting portion has straight thread, and the top of described connecting portion is fixedly connected with positive stop, described nail seat has the connecting hole that cooperates with described straight thread, and the limiting stand that cooperates with described positive stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110391417 CN102488548B (en) | 2011-11-30 | 2011-11-30 | Internal fixing device and internal fixing method of vertebral columns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110391417 CN102488548B (en) | 2011-11-30 | 2011-11-30 | Internal fixing device and internal fixing method of vertebral columns |
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| CN102488548A CN102488548A (en) | 2012-06-13 |
| CN102488548B true CN102488548B (en) | 2013-09-18 |
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| CN 201110391417 Active CN102488548B (en) | 2011-11-30 | 2011-11-30 | Internal fixing device and internal fixing method of vertebral columns |
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Cited By (2)
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| USD1004774S1 (en) | 2019-03-21 | 2023-11-14 | Medos International Sarl | Kerrison rod reducer |
| US11832855B2 (en) | 2017-12-15 | 2023-12-05 | Medos International Sårl | Unilateral implant holders and related methods |
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| CN104306060A (en) * | 2014-07-09 | 2015-01-28 | 吴爱悯 | Dual-port screw |
| CN105434021B (en) * | 2015-11-27 | 2018-06-12 | 周建明 | A kind of pedicle screw |
| US20200289165A1 (en) * | 2015-12-23 | 2020-09-17 | Xiangyang Ma | A screw-rod instrument specially used for posterior atlantoaxial vertebrae fixation |
| US11684393B2 (en) | 2017-09-27 | 2023-06-27 | Shanghai Sanyou Medical Co., Ltd. | Adjustable double-slot internal spinal fixation apparatus and bone screw |
| CN109549696B (en) * | 2017-09-27 | 2024-03-22 | 上海三友医疗器械股份有限公司 | Adjustable double-groove spine internal fixation device and bone screw |
| US11291482B2 (en) | 2019-03-21 | 2022-04-05 | Medos International Sarl | Rod reducers and related methods |
| US11291481B2 (en) | 2019-03-21 | 2022-04-05 | Medos International Sarl | Rod reducers and related methods |
| CN110353791A (en) * | 2019-07-24 | 2019-10-22 | 任绍东 | A kind of hip herringbone bone nail |
| CN111329568B (en) * | 2020-04-03 | 2023-04-11 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
| CN111839701A (en) * | 2020-07-13 | 2020-10-30 | 北京市春立正达医疗器械股份有限公司 | Novel pedicle screw and implantation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001299771A (en) * | 2000-04-21 | 2001-10-30 | Robert Reed Shokai Co Ltd | Connecting implement for vertebral member |
| CN1303943C (en) * | 2005-03-25 | 2007-03-14 | 张英泽 | Pelvis and spinal column position restoring and internal fixing device for treating lumbar vertebrae olisthy olisthe |
| CN101500500B (en) * | 2006-06-05 | 2011-05-11 | 特雷伯有限公司 | Device for vertebral attachment |
| WO2010128700A1 (en) * | 2009-05-04 | 2010-11-11 | (주)엘앤케이바이오메드 | Side click connector device for connection of spinal rods |
| CN102028531B (en) * | 2010-12-20 | 2013-07-10 | 常州市康辉医疗器械有限公司 | Dynamic scoliosis correction device |
| CN202365900U (en) * | 2011-11-30 | 2012-08-08 | 上海拓腾医疗器械有限公司 | Internal fixation device of spine |
-
2011
- 2011-11-30 CN CN 201110391417 patent/CN102488548B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11832855B2 (en) | 2017-12-15 | 2023-12-05 | Medos International Sårl | Unilateral implant holders and related methods |
| USD1004774S1 (en) | 2019-03-21 | 2023-11-14 | Medos International Sarl | Kerrison rod reducer |
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| Publication number | Publication date |
|---|---|
| CN102488548A (en) | 2012-06-13 |
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Owner name: SHANGHAI SANYOU MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI TATENG MEDICAL DEVICE CO.,LTD. Effective date: 20140609 |
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Effective date of registration: 20140609 Address after: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee after: Shanghai Sanyou Medical Devices Co., Ltd. Address before: 201209, Pudong New Area, Shanghai Qing Road 356, 3, 2 floor Patentee before: Shanghai Tateng Medical Device Co.,Ltd. |
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Address after: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee after: Shanghai Sanyou medical equipment Limited by Share Ltd Address before: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee before: Shanghai Sanyou Medical Devices Co., Ltd. |