CN204484281U - Spinal column non-fused inner fixing device - Google Patents
Spinal column non-fused inner fixing device Download PDFInfo
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- CN204484281U CN204484281U CN201520104894.9U CN201520104894U CN204484281U CN 204484281 U CN204484281 U CN 204484281U CN 201520104894 U CN201520104894 U CN 201520104894U CN 204484281 U CN204484281 U CN 204484281U
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- spinal column
- fixing device
- inner fixing
- worm screw
- prolongation
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Abstract
The utility model proposes a kind of spinal column non-fused inner fixing device, comprise casing, turbine, worm screw, two prolongation bolts and two prolongation adjusting rods; Turbine to be located in casing and to be had two sides; Worm screw is located in casing and transmission is matched with turbine; Two extend bolts and are individually fixed in the center of turbine two sides, and extend bolt and turbine coaxial; Extend in adjusting rod and offer screw, in order to threaded engagement on prolongation bolt, the hand of spiral in the screw of two prolongation adjusting rods is contrary.When the spinal fixation system using the spinal column non-fused inner fixing device that the utility model proposes as scoliosis surgery, when this follow-up adjustment extends adjusting rod, small incision surgery can not only be imposed in convenient and safe outpatient service local anesthesia, directly strut the spinal column of lateral bending, to meet the postoperative growth needs of scoliosis patient, reduce the fusion complication of various teenage spinal column seriously.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of spinal column non-fused inner fixing device being used for the treatment of scoliosis.
Background technology
At present, for the operation of existing treatment scoliosis, when especially the spinal column of teenager and child carries out orthopedic and internal fixtion, fusion, need the internal fixation device used to maintain the effect of surgical orthopaedic, increase spinal bone fusion rate.But because teenager and child are when spinal column not yet grows full maturity, spinal fusion often causes a lot of severe complication, such as crankshaft phenomenon, spinal column cripetura, lateral bending increase the weight of or chest deformity etc.For reducing the complication of spinal fusion, maintaining the effect of scoliosis orthopedic simultaneously, needing to design a kind of internal fixation device that can increase prolongation.
At present to the method that internal fixation of spine rod extends, need often regularly and repeatedly cut the operative incision of about 5cm at patient back, loosening the eye bolt of such as domino adapter, using distraction forcep etc. simultaneously apparatus is passive and strut two internal fixation bars.This method needs patient repeatedly to perform the operation, and repeatedly general anesthesia, repeatedly peel off and expose a part for domino adapter and internal fixation bar, then carry out the growth strutting to maintain spinal column, singly do not cause patient to suffer the misery of Repeated Operation, also can bring huge financial burden to patient home.
Therefore, provide a kind of skeleton inner fixing device for the treatment of scoliosis, so that when for adolescent patient, significantly reduce cost and the difficulty of subsequent procedures, alleviate the misery of patient's Repeated Operation simultaneously, become a large technical problem urgently to be resolved hurrily in this area.
Utility model content
This utility model will solve in prior art for extending the technical problem of the operation technique complexity of internal fixation of spine rod.
For solving the problems of the technologies described above, this utility model adopts following technical scheme:
The utility model proposes a kind of spinal column non-fused inner fixing device, wherein, comprise casing, turbine, worm screw, two prolongation bolts and two prolongation adjusting rods; Described turbine to be located in described casing and to be had two sides; Described worm screw is located in described casing and transmission is matched with described turbine; Described two extend bolts and are individually fixed in the center of described turbine two sides, and described prolongation bolt and described turbine coaxial; Offer screw in described prolongation adjusting rod, in order to threaded engagement on described prolongation bolt, the hand of spiral in the screw of described two prolongation adjusting rods is contrary.
According to an embodiment of the present utility model, described casing offers two the first openings, passes in order to extend bolt for described two respectively.
According to another embodiment, also comprise two the first ring flanges, in order to close described two the first openings respectively, offer perforate in the middle part of described first ring flange, pass with for described prolongation bolt.
According to another embodiment, described casing offers at least one second opening, is exposed to described casing with at least one end in described worm screw both ends.
According to another embodiment, the end that described worm screw is exposed to described casing offers interior corner apertures, and described interior angle centerline hole overlaps with described worm screw centrage.
According to another embodiment, described spinal column non-fused inner fixing device also comprises at least one second ring flange, in order to seal described second opening, and exposes for the worm end offering described interior corner apertures.
According to another embodiment, described casing offers two the second openings, is exposed to described casing in order to the both ends respectively for described worm screw.
According to another embodiment, described worm screw offers interior angle through hole, and described interior angle through hole centrage overlaps with described worm screw centrage.
According to another embodiment, described turbine and described worm screw are that 90 ° of alternate angles engage.
According to another embodiment, described prolongation adjusting rod comprises adjustment screwed pipe portion and extension rod portion; Described adjustment screwed pipe portion in a tubular form and inside offers described screw; Described extension rod portion is positioned at one end away from described casing, described adjustment screwed pipe portion, in order to fix with spinal column.
As shown from the above technical solution, the beneficial effects of the utility model are: when the spinal fixation system using the spinal column non-fused inner fixing device that the utility model proposes as scoliosis surgery, when this follow-up adjustment extends adjusting rod, small incision surgery can be imposed in convenient and safe outpatient service local anesthesia, directly strut the spinal column of lateral bending, to meet the postoperative growth needs of scoliosis patient, reduce the fusion complication of various teenage spinal column seriously.
Accompanying drawing explanation
Fig. 1 is the perspective view of spinal column non-fused inner fixing device one embodiment that the utility model proposes;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the sectional structure schematic diagram done along A-A straight line in Fig. 1;
Fig. 4 is the sectional structure schematic diagram done along B-B straight line in Fig. 1.
Wherein, Reference numeral is as follows:
1. casing; 2. turbine; 3. worm screw; 31. interior angle through holes; 4. extend bolt; 5. extend adjusting rod; 51. regulate screwed pipe portion; 52. extension rod portions; 6. the first ring flange; 7. the second ring flange.
Detailed description of the invention
The exemplary embodiments embodying this utility model feature & benefits will describe in detail in the following description.Be understood that this utility model can have various changes in different embodiments, it neither departs from scope of the present utility model, and explanation wherein and to be shown in be the use explained in essence, and be not used to limit this utility model.
As shown in Figure 1, an embodiment of the spinal column non-fused inner fixing device that the utility model proposes, in the present embodiment, this spinal column non-fused inner fixing device mainly comprises casing 1, turbine 2, worm screw 3, two prolongation bolt 4 and two prolongation adjusting rods 5.
As depicted in figs. 1 and 2, in the present embodiment, the length size of casing 1 can be preferably 2cm ~ 3cm, but in other embodiments, the shape of casing 1 and size can adjust, not as limit flexibly according to the actual needs of operation.Casing 1 offers two the first openings, passes in order to extend bolt 4 for two respectively.Further, two openings of casing 1 are closed respectively by one first ring flange 6, and offer the perforate of passing for prolongation bolt 4 in the middle part of the first ring flange 6.By the structural design of above-mentioned first ring flange 6, can avoid the problem that the tissues such as such as soft tissue grow into casing 1 occurs in post operative recovery procedures.
As shown in Figure 3 and Figure 4, in the present embodiment, turbine 2 to be located in casing 1 and to be had two sides, and worm screw 3 is located in casing 1 and transmission is matched with turbine 2.Specifically, turbine 2 engages in 90 ° of alternate angles with worm screw 3.Further, casing 1 offers two the second openings, and the both ends for worm screw 3 are exposed to casing 1.The middle position of worm screw 3 offers interior angle through hole 31, and namely this interior angle through hole 31 centrage overlaps with the centrage of worm screw 3.In order to avoid in post operative recovery procedures further, there is the problem that the tissues such as such as soft tissue grow into casing 1, second opening is also provided with the second ring flange 7, second ring flange 7 can close the space between worm screw 3 end and the second opening, and worm screw 3 end with interior angle through hole 31 can be made to be exposed by the perforate in the middle of the second ring flange 7.It should be noted that, adopt the design of offering interior hexagonal through hole in worm screw 3 in present embodiment, said structure can utilize the hexagon screwdriver with this interior angle through hole 31 adaptation in operation, inserts in this worm screw 3, single direction rotation hexagon screwdriver hand shank, drives turbine 2 to rotate with rotary worm 3.In addition, in other embodiments, casing 1 also only can offer second opening, and the wherein end for worm screw 3 is exposed to casing 1, then the interior angle through hole 31 offered in worm screw 3 should be replaced with interior corner apertures, not as limit.It should be noted that, the hand of spiral between worm screw 3 with turbine 2 is best with consistent, minimum to make the vibrations of worm screw 3 transmission, impact and noise be down to, and make the duty of spinal column non-fused inner fixing device steady, larger gear ratio can be obtained with one pole transmission.Compact conformation between worm gear and worm screw 3, can prevent from retreating by such as self-locking, not repeat them here.Worm screw 3 and turbine 2 are contained in casing 1 completely in advance in operation consent, and are fixed on casing 1, while meeting spinfunction, avoid shaking.
As shown in Figure 3, in the present embodiment, two extend the center that bolt 4 is individually fixed in turbine 2 two sides, and it is coaxial with turbine 2 to extend bolt 4.Extend in adjusting rod 5 and offer screw, in order to threaded engagement on prolongation bolt 4, and hand of spiral in the screw of two prolongation adjusting rods 5 is contrary.Specifically, in the present embodiment, extend adjusting rod 5 and comprise and regulate screwed pipe portion 51 and extension rod portion 52, wherein regulate screwed pipe portion 51 in a tubular form and innerly offer screw near turbine 2 place, extension rod portion 52 is positioned at the one end regulating screwed pipe portion 51 away from casing 1.In addition, the diameter of this prolongation adjusting rod 5 is preferably 3.5mm ~ 6mm, the length of this prolongation adjusting rod 5 is preferably 20cm ~ 40cm, relative, the length extending bolt 4 can preferred about 5cm, and diameter adapts to the screw aperture in the adjustment screwed pipe portion 51 extending adjusting rod 5, to adapt to the use of the patient of all ages and classes.Further, the material of this prolongation adjusting rod 5 is preferably medical titanium alloy, not as limit.In addition, this prolongation adjusting rod 5 nails on, to be fixed on spinal column by this spinal column non-fused inner fixing device, and when concrete operations in order to be arranged on adaptive pedicle of vertebral arch screw, can utilize as disconnected excellent device is cut short or curved rod device bending certain angle, with adaptive spinal column natural form.
The ultimate principle of the spinal column non-fused inner fixing device adjustment extension rod that the utility model proposes is: worm screw 3 and turbine 2 are arranged in casing 1, when rotary worm 3, worm screw 3 drives turbine 2 to rotate, and namely drives the two prolongation bolts 4 being fixed on turbine 2 two sides to rotate.Meanwhile, because spinal column is fixed on when initial surgery in the extension rod portion 52 extending adjusting rod 5, namely extend adjusting rod 5 and extend bolt 4 relative to being in stationary state and rotate relative to prolongation adjusting rod 5.Further, because the hand of spiral in the adjustment screwed pipe portion 51 of two prolongation adjusting rods 5 is contrary, then two when extending bolt 4 rotating Vortex, two prolongation adjusting rods 5 under the drive of screw-driven power in opposite direction in opposite directions or movement on the contrary.Because of the spinal growth that this fixture produces as adolescent patient body development for adaptations, therefore only need worm screw 3 to do one-way movement, namely correspond to the direction of rotation of the contrary movement of two prolongation adjusting rods 5, the adapt to spinal growth can be realized.
Though exemplary embodiment describe spinal column non-fused inner fixing device of the present utility model with reference to several, should be understood that term used be illustrate and illustrative, and not restrictive.Specifically can implement in a variety of forms due to this utility model and not depart from its design or essence, therefore, above-described embodiment is not limited to any aforesaid details, and explain widely in the design that should limit in claim of enclosing and scope, therefore the whole change fallen in claim or its equivalent scope and remodeling all should be claim of enclosing and contained.
Claims (10)
1. a spinal column non-fused inner fixing device, is characterized in that, comprising:
Casing (1);
Turbine (2), to be located in described casing (1) and to have two sides;
Worm screw (3), is located in described casing (1) and transmission is matched with described turbine (2);
Two extend bolt (4), are individually fixed in the center of described turbine (2) two sides, and described prolongation bolt (4) is coaxial with described turbine (2); And
Two prolongation adjusting rods (5), screw is offered in described prolongation adjusting rod (5), in order to threaded engagement on described prolongation bolt (4), the hand of spiral in the screw of described two prolongation adjusting rods (5) is contrary.
2. spinal column non-fused inner fixing device according to claim 1, is characterized in that, described casing (1) offers two the first openings, passes in order to extend bolt (4) for described two respectively.
3. spinal column non-fused inner fixing device according to claim 2, it is characterized in that, also comprise two the first ring flanges (6), in order to close described two the first openings respectively, described first ring flange (6) middle part offers perforate, passes with for described prolongation bolt (4).
4. spinal column non-fused inner fixing device according to claim 1, it is characterized in that, described casing (1) offers at least one second opening, is exposed to described casing (1) with at least one end in described worm screw (3) both ends.
5. spinal column non-fused inner fixing device according to claim 4, it is characterized in that, the end that described worm screw (3) is exposed to described casing (1) offers interior corner apertures, and described interior angle centerline hole overlaps with described worm screw (3) centrage.
6. spinal column non-fused inner fixing device according to claim 5, it is characterized in that, described spinal column non-fused inner fixing device also comprises at least one second ring flange (7), in order to seal described second opening, and expose for worm screw (3) end offering described interior corner apertures.
7. spinal column non-fused inner fixing device according to claim 4, is characterized in that, described casing (1) offers two the second openings, is exposed to described casing (1) in order to supply the both ends of described worm screw (3) respectively.
8. spinal column non-fused inner fixing device according to claim 7, it is characterized in that, described worm screw (3) offers interior angle through hole (31), and described interior angle through hole (31) centrage overlaps with described worm screw (3) centrage.
9. spinal column non-fused inner fixing device according to claim 1, is characterized in that, described turbine (2) engages in 90 ° of alternate angles with described worm screw (3).
10. spinal column non-fused inner fixing device according to claim 1, is characterized in that, described prolongation adjusting rod (5) comprising:
Regulate screwed pipe portion (51), in a tubular form and inside offers described screw; And
Extension rod portion (52), is positioned at described adjustment screwed pipe portion (51) one end away from described casing (1), in order to fix with spinal column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104894.9U CN204484281U (en) | 2015-02-12 | 2015-02-12 | Spinal column non-fused inner fixing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104894.9U CN204484281U (en) | 2015-02-12 | 2015-02-12 | Spinal column non-fused inner fixing device |
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| CN204484281U true CN204484281U (en) | 2015-07-22 |
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| CN201520104894.9U Active CN204484281U (en) | 2015-02-12 | 2015-02-12 | Spinal column non-fused inner fixing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982725A (en) * | 2015-02-12 | 2016-10-05 | 沈建雄 | Spine non-fused internal fixation device |
| CN113520691A (en) * | 2021-07-20 | 2021-10-22 | 王同心 | Mold building mechanism of spinal correction treatment equipment |
-
2015
- 2015-02-12 CN CN201520104894.9U patent/CN204484281U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982725A (en) * | 2015-02-12 | 2016-10-05 | 沈建雄 | Spine non-fused internal fixation device |
| CN105982725B (en) * | 2015-02-12 | 2019-08-20 | 沈建雄 | The non-fused inner fixing device of backbone |
| CN113520691A (en) * | 2021-07-20 | 2021-10-22 | 王同心 | Mold building mechanism of spinal correction treatment equipment |
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