CN102090921B - Vertebral column resetting device - Google Patents
Vertebral column resetting device Download PDFInfo
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- CN102090921B CN102090921B CN2011100690681A CN201110069068A CN102090921B CN 102090921 B CN102090921 B CN 102090921B CN 2011100690681 A CN2011100690681 A CN 2011100690681A CN 201110069068 A CN201110069068 A CN 201110069068A CN 102090921 B CN102090921 B CN 102090921B
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- reposition
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- receiving opening
- locking device
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Abstract
The invention discloses a vertebral column resetting device, which comprises resetting bars, a first locking device, a vertebral arch pedicle nail and a second locking device, wherein the resetting bars are connected with the vertebral arch pedicle nail through the second locking device. The vertebral column resetting device is characterized in that: the number of the resetting bars is two; one end of one of the two resetting bars is provided with an accommodating port, the opening of the accommodating port faces the outer side of the resetting bar along the axial direction of the resetting bar, and the side wall of the accommodating port is provided with a first through hole; one end of the other one of the two resetting bars is provided with an accommodated rod, and the accommodated rod is matched with the accommodating port and provided with a second through hole communicated with the first through hole; a pin shaft passing through the first through hole and the second through hole is arranged in the first through hole and the second through hole; and the relative positions of the accommodating port and the accommodated rod are locked through the first locking device. The vertebral column resetting device is simple to operate, is not easy to cause resetting loss during operating, and has good resetting effect.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly a kind of restoring backbone device.
Background technology
Spinal column is the pillar of health, is positioned at the back center position, as the Axial sketelon of human body; Functions such as heavy burden, damping, protection and motion are arranged; In case spinal column is fractured, then very serious problem can appear, and the spinal column that fracture takes place is carried out cone reset and fix the particular importance that just seems; The restoring backbone device for realize cone reset and fixing and produce.
Please refer to Fig. 1 to Fig. 3, Fig. 1 is the structural representation of a kind of typical restoring backbone device in the prior art, and Fig. 2 is the explosive view of the part-structure of restoring backbone device shown in Figure 1; Fig. 3 is the side view of restoring backbone device shown in Figure 1.
As shown in Figure 1; The restoring backbone device of prior art comprises pedicle nail 11; Adjustment rod 12, locking nut 13, gear piece 14, Connection Block 16, spherical cover 15 and lock-screw 17, gear piece is provided with sawtooth 141, and Connection Block 16 is provided with the sawtooth 161 of corresponding engagement with it; And offer bellmouth that holds pedicle nail 11 and the through hole 162 that holds adjustment rod 12, offer distortion groove 151 on the spherical cover 15.
In the use, when the injured pressurized of a certain joint of the wounded's spinal column, at first pedicle nail 11 is hammered into two spinal segment adjacent with injured spinal segment; Then sphere cover 15 is set in two pedicle nails 11; Wherein spherical cover 15 passes the through hole of Connection Block 16, gear piece 14 and locking nut 13 successively; Connection Block 16 is connected with adjustment rod 12, and adjustment rod 12 is plugged in the through hole 162 of Connection Block 16, and through lock-screw 17 lockings; Next adjust the inclination angle of two pedicle nails 11 again,, thereby can make pedicle nail 11 drive spherical cover 15 with respect to Connection Block 16 swings because the spherical part of spherical cover 15 is arranged in the bellmouth of Connection Block 16; This process need is adjusted after the inclination angle of two pedicle nails 11 by the swing of regulating locking device, makes the engagement of gear piece 14 and Connection Block 16 again; Even regulate the locking device rotation; With locking nut 13 lockings, i.e. locking nut 13 windings place the screw thread rotation on the spherical cover 15, and spherical cover 15 is moved upward; And locking nut 13 moves downward; Because the spherical part of spherical cover 15 is positioned at the bellmouth of Connection Block 16, thereby make the sphere cover 15 that offers distortion groove 151 under the effect of bellmouth, compress pedicle nail 11, accomplish the fixing of restoring backbone device basically.
Certainly, can not meet the demands, can also unclamp lock-screw 17 again, finely tune the length of the adjustment rod 12 between two pedicle nails 11 if be in the length of the adjustment rod 12 between two pedicle nails 11, and then locking.
Yet, can find out that by above-mentioned the use of restoring backbone device of the prior art is loaded down with trivial details, operating process is very complicated, has prolonged the time shared when curing; On the other hand, in operating process, adjust after the inclination angle of two pedicle nails 11; When utilizing the locking of adjusting locking device, need to decontrol one of them pedicle nail 11, be set in the pedicle nail part that does not hammer into spinal column inside all the time and regulate locking device; The bracing or strutting arrangement that is used for when decontroling pedicle nail 11, keeping the inclination angle of pedicle nail 11 not change does not have the space to place; Thereby under the active force of spinal column, decontrol at pedicle nail 11, under the situation that locking nut 13 is not locked; Pedicle nail 11 can produce certain resetting and lose, and has influenced reset effect.
Therefore, how to reduce the complexity when using, reducing simultaneously resets loses, and improves the stability that resets, and just becomes 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 restoring backbone device, this restoring backbone device simple to operate is difficult for resetting in the operating process losing better reduction.
For solving the problems of the technologies described above; The present invention provides a kind of restoring backbone device; Comprise reposition lever, first locking device, pedicle nail and second locking device, said reposition lever is connected with said pedicle nail through said second locking device, and the number of said reposition lever is two; One end of one in the two said reposition levers is provided with utensil receiving opening; The opening of said utensil receiving opening along said reposition lever axially towards its outside, the sidewall of said utensil receiving opening offers first through hole, another person's in the two said reposition levers a end is provided with and is received bar; The said bar that is received matches with said utensil receiving opening; And offer second through hole that can be communicated with said first through hole, be provided with the bearing pin that runs through the two in said first through hole and second through hole, said utensil receiving opening and the said relative position that is received bar are through said first locking device locking.
Preferably; Said first locking device comprises the holder with keeper; Be arranged at the force transmission element in the said holder; And be threaded with the screwed hole of said holder upper side wall and pass the lock-screw of said screwed hole; The middle part of the lower wall of said holder is provided with groove, and the plane closely contacts on the lower end of said lock-screw and the said force transmission element, the lower plane of said force transmission element and the keeper that is positioned at said holder and the utensil receiving opening that is connected through said bearing pin be received bar and closely contact.
Preferably, the said lower wall thickness that is positioned at the part of said groove both sides becomes big from inside to outside gradually.
Preferably, said groove runs through said lower wall.
Preferably, said force transmission element has platy structure.
Preferably, the two ends of same said force transmission element are plugged in the keeper of two said holders respectively.
Preferably; Said second locking device is a locking nut; Said second locking device is a locking nut; Said pedicle nail comprises and is positioned at two annulus that its top is provided with about its diameter symmetry, and the minimum range between the two said annulus equals the diameter of said reposition lever, and the peripheral part of said locking nut is provided with the external screw thread that matches with the female thread of said two annulus.
Preferably, said locking nut is provided with and locks the through hole that power assisting device matches.
Preferably, the width range of said utensil receiving opening is 3mm to 20mm.
Restoring backbone device provided by the present invention comprises reposition lever, first locking device, pedicle nail and second locking device, wherein; Reposition lever is connected with pedicle nail through second locking device; The number of reposition lever is two, and an end of one in two reposition levers is provided with utensil receiving opening, the opening of utensil receiving opening along reposition lever axially towards its outside; The sidewall of utensil receiving opening offers first through hole; Another person's in two reposition levers a end is provided with and is received bar, is received bar and matches with utensil receiving opening, and offer second through hole that can be communicated with first through hole; Be provided with the bearing pin that runs through the two in first through hole and second through hole, utensil receiving opening locks through first locking device with the relative position that is received bar.Thereby; In use, operator at first hammer into pedicle nail in the spinal segment of damage spinal segment both sides, will lock through second locking device through two reposition levers and two pedicle nails that bearing pin connects then; And utilize the adjusting parts to make the swing of two pedicle nails; Change the inclination angle of two pedicle nails, two reposition levers change the angle between the two around the bearing pin rotation that connects the two simultaneously; After waiting to be adjusted to the target location, utilize the locking power assisting device that the relative position of fixing two tooth-like parts of anything of first locking device is got final product.Can find out, restoring backbone device provided by the present invention, the tilt adjustment of pedicle nail and fixation procedure be very simple all, reduced operation complexity; Simultaneously, the inclination angle of pedicle nail is being regulated and fixedly the time, at first utilized adjusting device to carry out the adjusting at the inclination angle of pedicle nail; Since make first locking device lock the force application location and the direction of the relative position of two reposition levers, different fully with the force application location and the direction at the inclination angle of regulating pedicle nail, therefore; Can be before implementing the locking step; Utilize the fixedly inclination angle of pedicle nail of bracing or strutting arrangement, and then decontrol one of them pedicle nail, locking; Thereby can prevent that resetting in operating process from losing, improve reset effect greatly.
In a kind of preferred implementation; First locking device of restoring backbone device provided by the present invention comprises the holder with keeper; Be arranged at the force transmission element in the holder; And be threaded with the screwed hole of holder upper side wall and pass the lock-screw of screwed hole; The middle part of the lower wall of holder is provided with groove, and the plane closely contacts on the lower end of lock-screw and the force transmission element, the lower plane of force transmission element and the keeper that is positioned at holder and the utensil receiving opening that is connected through bearing pin be received bar and closely contact.Thereby, in the course of the work, when being connected in one through bearing pin two reposition levers that connect and two pedicle nails that hammer into spinal column; And after adjusting the inclination angle of two pedicle nails, the keeper centering two reposition lever junctions of holder that will be corresponding with above-mentioned inclination angle are installed in two reposition levers; Simultaneously force transmission element also is positioned in the keeper, and is positioned at the top of reposition lever, at last lock-screw is passed the screwed hole of holder upper side wall; Be pressed in force transmission element, force transmission element through the reposition lever that bearing pin connects, is clamped in force transmission to two between the lower wall and force transmission element of holder with two reposition levers; Realize the fixing of angle between the fixing and reposition lever at final pedicle nail inclination angle; Guarantee the reliability of locking greatly, avoided resetting in the life-time service process to lose effectively, improved the effect that resets.
Description of drawings
Fig. 1 is the structural representation of a kind of typical restoring backbone device in the prior art;
Fig. 2 is the explosive view of the part-structure of restoring backbone device shown in Figure 1;
Fig. 3 is the side view of restoring backbone device shown in Figure 1;
The structural representation of the restoring backbone device that Fig. 4 is provided for a kind of specific embodiment of the present invention;
Fig. 5 is the explosive view of restoring backbone device shown in Figure 4;
Fig. 6 is the front view of restoring backbone device shown in Figure 4;
Fig. 7 is the vertical view of restoring backbone device shown in Figure 4.
The specific embodiment
Core of the present invention provides a kind of restoring backbone device, and this restoring backbone device simple to operate is difficult for resetting in the operating process losing better reduction.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 4 to Fig. 7, the structural representation of the restoring backbone device that Fig. 4 is provided for a kind of specific embodiment of the present invention; Fig. 5 is the explosive view of restoring backbone device shown in Figure 4; Fig. 6 is the front view of restoring backbone device shown in Figure 4; Fig. 7 is the vertical view of restoring backbone device shown in Figure 4.
Shown in figure; Restoring backbone device provided by the present invention comprises reposition lever 22, first locking device 24, pedicle nail 21 and second locking device 23, wherein; Reposition lever 22 is connected with pedicle nail 21 through second locking device 23; And the number of reposition lever 22 is two, and an end of one in two reposition levers 22 is provided with utensil receiving opening 221, the opening of utensil receiving opening 221 along reposition lever 22 axially towards its outside; The sidewall of utensil receiving opening 221 offers first through hole 222; Another person's in two reposition levers 22 a end is provided with and is received bar 223, is received bar 223 and matches with utensil receiving opening 221, and offer second through hole 224 that can be communicated with first through hole 222; Be provided with the bearing pin 225 that runs through the two in first through hole 222 and second through hole 224, utensil receiving opening 221 locks through first locking device 24 with the relative position that is received bar 223.
Particularly, concrete connected modes of reposition lever as herein described 22, first locking device 24, pedicle nail 21 and second locking device, 23 each device are meant after pedicle nail 21 hammers into spinal column, accomplish the state after interconnecting; Utensil receiving opening 221 as herein described and the relative position that is received bar 223 are meant that adjusting at the inclination angle of accomplishing pedicle nail 21 is with angle state and connecting device between the latter two; On the other hand, utensil receiving opening 221 as herein described specifically can have U type shape, also can have other shape, as long as can realize that functional requirement all is fine.
In use; Operator at first hammer into pedicle nail 21 in the spinal segment of damage spinal segment both sides; To lock through second locking device 23 through two reposition levers 22 and two pedicle nails 21 that first locking device 24 connects then, and utilize adjusting parts (accessory in the operating process) to make 21 swings of two pedicle nails then, change the inclination angle of two pedicle nails 21; Drive two reposition levers 22 simultaneously around connecting bearing pin 225 rotations; Change the angle between the two, after the inclination angle of treating two pedicle nails 21 is adjusted to the target location, utilize bracing or strutting arrangement (accessory in the operating process) that the state of two pedicle nails 21 is pre-fixed; Utilize locking power assisting device (accessory in the operating process) that the relative position of first locking device, 24 fixing two reposition levers 221 is got final product then; Because the adjustment at the inclination angle of pedicle nail 21 and the change of the angle between two reposition levers 22 are to be mutually related, and therefore, have fixed the relative position between two reposition levers 22; Just can fix the inclination angle of two pedicle nails 21, thereby play the effect of restoring backbone.
Can find out, restoring backbone device provided by the present invention, the tilt adjustment of pedicle nail 21 and fixation procedure be very simple all, reduced operation complexity; Simultaneously, the inclination angle of pedicle nail 21 is being regulated and fixedly the time, at first utilized adjusting device to carry out the adjusting at the inclination angle of pedicle nail 21; Since make the force application location and the direction of the relative position of first locking device, 24 lockings, two reposition levers 22, different fully with the force application location and the direction at the inclination angle of regulating pedicle nail 21, therefore; Can be before implementing the locking step; Utilize the fixedly inclination angle of pedicle nail of bracing or strutting arrangement, and then decontrol pedicle nail 21, the state that changes first locking device 24 is locked; Thereby can prevent that resetting in operating process from losing, improve reset effect greatly.
Particularly; Shown in figure; First locking device 24 of restoring backbone device provided by the present invention can comprise the holder 243 with keeper; Be arranged at the force transmission element 242 in the holder 243, and be threaded with the screwed hole of holder 243 upper side walls and pass the lock-screw 241 of screwed hole, the middle part of the lower wall of holder 242 is provided with groove; The plane closely contacts on the lower end of lock-screw 241 and the force transmission element 242, the lower plane of force transmission element 242 and the keeper that is positioned at holder 243 and the utensil receiving opening 221 that is connected through bearing pin 225 be received bar 223 and closely contact.
Particularly; The keeper of holder 243 as herein described is meant the groove that extends internally from the opening of a sidewall of holder 243; And the perforation two side adjacent with above-mentioned sidewall, its cross sectional shape perpendicular to bearing of trend can have multiple, such as: the U type; Circular arc or the like all is fine as long as can satisfy functional requirement; On the other hand, through the degree of depth that groove is set, the width equidimension of keeper, in the time of can confirming that a certain first locking device 24 is in complete locking state; Angle between two reposition levers 22 that are locked; Therefore, in use, for guaranteeing the reliability of locking; Can select corresponding holder 243 according to the angle between two reposition levers of adjusting 22.
In the course of the work, when will being connected in one through bearing pin 225 two reposition levers 22 that connect and two pedicle nails 21 that hammer into spinal column, and after adjusting the inclination angle of two pedicle nails 21; Keeper centering two reposition levers 22 junctions of holder 24 that will be corresponding with above-mentioned inclination angle; Be installed in two reposition levers 22, simultaneously force transmission element 242 also be positioned in the keeper, and be positioned at the top of reposition lever 22; At last lock-screw 241 is passed the screwed hole of holder 243 upper side walls; Be pressed in force transmission element 242, force transmission element 242 through the reposition lever 22 that bearing pin 225 connects, is clamped in force transmission to two between the lower wall and force transmission element 225 of holder 243 with two reposition levers 22; Realize the fixing of angle between the fixing and reposition lever 22 at final pedicle nail 21 inclination angles; Guarantee the reliability of locking greatly, avoided resetting in the life-time service process to lose effectively, improved the effect that resets.
Certainly, for the angle between two reposition levers 22 that further guarantee to adjust is constant, the thickness that can make the lower wall of holder 243 be positioned at the part of groove both sides becomes big from inside to outside gradually.Thereby under the effect of the thrust of lock-screw 241; Fit the fully lower wall of holder 243 of the downside of two reposition levers 22; Make reposition lever 22 contact by line and become the face contact with lower wall; Improved the active force that can bear, lock-screw 241 can provide bigger thrust, improves coupling mechanism force.
On the basis of the above, the angle between two reposition levers 22 is confirmed by the varied in thickness trend of the lower wall of holder 243, for the degree of depth deficiency that prevents groove influences the angle between two reposition levers 22, can make the groove of the lower wall of holder 243 run through lower wall.
Simultaneously, in order to improve the reliability of power transmission, can make 242 of power transmissions have platy structure.
On the other hand; Be the effect that guarantees to reset, mostly the restoring backbone device is that two is one group of use, therefore; Can the two ends of same force transmitting board 242 be plugged in respectively in the keeper of two holders 243; Realize the power transmission effect, not only number of parts reduces, but also has guaranteed stressed balance and stability.
Certainly; Locking for ease; Second locking device 23 is a locking nut; Pedicle nail 21 comprises that the minimum range that is positioned between two annulus, 211, two annulus 211 that its top is provided with about its diameter symmetry equals the diameter of reposition lever 22, and the peripheral part of locking nut is provided with the external screw thread that matches with the female thread of two annulus 211.
Thereby, when needs are connected reposition lever 22 with pedicle nail 21, only need reposition lever 22 be put into the space between two annulus 211, then locking nut is screwed in wherein, compress reposition lever 22 and get final product, operating process is very convenient.
Further, for ease locking nut is applied active force, make locking nut locking reposition lever 22, the through hole that matches with the locking power assisting device can also be set on locking nut.
In the another kind of specific embodiment,, prevent simultaneously can the width range of utensil receiving opening size be controlled at 3mm to 20mm because utensil receiving opening 221 oversize takies too much space in order to guarantee the intensity of utensil receiving opening 221.
More than restoring backbone device provided by the present invention has been carried out detailed introduction.Used concrete example among this paper 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 (8)
1. a restoring backbone device comprises reposition lever, first locking device, pedicle nail and second locking device, and said reposition lever is connected with said pedicle nail through said second locking device; It is characterized in that; The number of said reposition lever is two, and an end of one in the two said reposition levers is provided with utensil receiving opening, the opening of said utensil receiving opening along said reposition lever axially towards its outside; The sidewall of said utensil receiving opening offers first through hole; Another person's in the two said reposition levers a end is provided with and is received bar, and the said bar that is received matches with said utensil receiving opening, and offers second through hole that can be communicated with said first through hole; Be provided with the bearing pin that runs through the two in said first through hole and second through hole, said utensil receiving opening and the said relative position that is received bar are through said first locking device locking; Said first locking device comprises the holder with keeper; Be arranged at the force transmission element in the said holder; And be threaded with the screwed hole of said holder upper side wall and pass the lock-screw of said screwed hole; The middle part of the lower wall of said holder is provided with groove, and the plane closely contacts on the lower end of said lock-screw and the said force transmission element, the lower plane of said force transmission element and the keeper that is positioned at said holder and the utensil receiving opening that is connected through said bearing pin be received bar and closely contact.
2. restoring backbone device according to claim 1 is characterized in that, the thickness that said lower wall is positioned at the part of said groove both sides becomes big from inside to outside gradually.
3. restoring backbone device according to claim 1 is characterized in that said groove runs through said lower wall.
4. restoring backbone device according to claim 1 is characterized in that said force transmission element has platy structure.
5. restoring backbone device according to claim 4 is characterized in that the two ends of same said force transmission element are plugged in the keeper of two said holders respectively.
6. restoring backbone device according to claim 1; It is characterized in that; Said second locking device is a locking nut; Said pedicle nail comprises and is positioned at two annulus that its top is provided with about its diameter symmetry, and the minimum range between the two said annulus equals the diameter of said reposition lever, and the peripheral part of said locking nut is provided with the external screw thread that matches with the female thread of said two annulus.
7. restoring backbone device according to claim 6 is characterized in that, said locking nut is provided with and locks the through hole that power assisting device matches.
8. according to each described restoring backbone device of claim 1 to 7, it is characterized in that the width range of said utensil receiving opening is 3mm to 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100690681A CN102090921B (en) | 2011-03-22 | 2011-03-22 | Vertebral column resetting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100690681A CN102090921B (en) | 2011-03-22 | 2011-03-22 | Vertebral column resetting device |
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| Publication Number | Publication Date |
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| CN102090921A CN102090921A (en) | 2011-06-15 |
| CN102090921B true CN102090921B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100690681A Active CN102090921B (en) | 2011-03-22 | 2011-03-22 | Vertebral column resetting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102499744B (en) * | 2011-09-30 | 2014-07-16 | 许光昶 | Universal vertebral body reduction device for orthopedic vertebral column surgery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005102189A1 (en) * | 2004-03-31 | 2005-11-03 | Depuy Spine Sarl | Adjustable-angle spinal fixation element |
| CN202044328U (en) * | 2011-03-22 | 2011-11-23 | 邱勇 | Spinal reduction device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8366746B2 (en) * | 2008-01-03 | 2013-02-05 | Kiester P Douglas | Spine reconstruction rod extender |
| US20100114167A1 (en) * | 2008-10-31 | 2010-05-06 | Warsaw Orthopedic, Inc. | Transition rod |
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2011
- 2011-03-22 CN CN2011100690681A patent/CN102090921B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005102189A1 (en) * | 2004-03-31 | 2005-11-03 | Depuy Spine Sarl | Adjustable-angle spinal fixation element |
| CN202044328U (en) * | 2011-03-22 | 2011-11-23 | 邱勇 | Spinal reduction device |
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| CN102090921A (en) | 2011-06-15 |
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Owner name: SHANGHAI SANYOU MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: QIU YONG Effective date: 20140528 |
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Effective date of registration: 20140528 Address after: 201807 Jiading District Jia Tang Road, Shanghai, No. 1988 Patentee after: Shanghai Sanyou Medical Devices Co., Ltd. Address before: 210008 Gulou District, Jiangsu, Zhongshan Road, No. 321, No. Patentee before: Qiu Yong |
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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. |