CN109875669A - A spinal fixation device - Google Patents
A spinal fixation device Download PDFInfo
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- CN109875669A CN109875669A CN201910329257.4A CN201910329257A CN109875669A CN 109875669 A CN109875669 A CN 109875669A CN 201910329257 A CN201910329257 A CN 201910329257A CN 109875669 A CN109875669 A CN 109875669A
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Abstract
本发明公开了一种脊柱固定装置，涉及医疗器械技术领域。该脊柱固定装置包括连接棒和椎弓根螺钉，椎弓根螺钉包括螺钉杆、螺钉头和连接头，螺钉杆上设有外螺纹，用于与椎弓根连接；螺钉头与螺钉杆连接，螺钉头中部设置有第一置棒部，第一置棒部两侧设置有两个相对的侧壁，至少一个侧壁上设置有沿螺钉头轴向设置的导轨；连接头与螺钉头上的导轨配合连接，连接头上设有第二置棒部，用于安装连接棒，第二置棒部上安装的连接棒与第一置棒部上安装的连接棒基本平行；钉头帽与螺钉头远离螺钉杆的一端连接，能够限制连接头脱出螺钉头。本发明的脊柱固定装置中的椎弓根螺钉可以连接多个连接棒，固定更稳定，术后恢复效果好。
The invention discloses a spinal column fixing device, which relates to the technical field of medical instruments. The spinal fixation device includes a connecting rod and a pedicle screw. The pedicle screw includes a screw rod, a screw head and a connecting head. The screw rod is provided with an external thread for connecting with the pedicle; the screw head is connected with the screw rod. The middle part of the screw head is provided with a first stick part, two opposite side walls are arranged on both sides of the first stick part, and at least one side wall is provided with a guide rail arranged along the axial direction of the screw head; The guide rail is matched and connected, and the connecting head is provided with a second rod part for installing the connecting rod. The connecting rod installed on the second rod part is basically parallel to the connecting rod installed on the first rod part; the head cap and the screw The end of the head away from the screw rod is connected, which can restrict the connection head from coming out of the screw head. The pedicle screw in the spinal fixation device of the present invention can be connected with a plurality of connecting rods, the fixation is more stable, and the postoperative recovery effect is good.
Description
Technical field
The invention belongs to the field of medical instrument technology, more particularly to a kind of spinal fixation system.
Background technique
Spinal fixation system is suitable for treatment scoliosis, lumber spondylolisthesis, retrogression, disc disease, vertebral fracture
With other spinal disease disorders or exception.Such as spinal fixation system includes one or more pedicle of vertebral arch screw in many cases,
The components such as nail, pitman, horizontal-associate.Under normal circumstances, only lead between the two neighboring pedicle screw on spine lengths direction
A pitman connection is crossed, fixed effect is poor, and post-operative recovery effect is poor, or even is easy to cause operative failure.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of spinal fixation system, between two neighboring pedicle screw
It can be connected by multiple pitmans, good fixing effect, orthopedic cycle time, surgery recovery effect is good.
A kind of spinal fixation system, including pitman and pedicle screw, the pedicle screw include:
Shank of screw, the shank of screw are equipped with external screw thread, for connecting with pedicle of vertebral arch；
Head of screw is connect with the shank of screw, and first for installing pitman is provided in the middle part of the head of screw and sets stick portion,
Described first sets opposite side wall there are two the settings of stick portion two sides, is provided at least one described side wall along the head of screw axis
To the guide rail of setting；
The guide rail on connector, with the head of screw is cooperatively connected, and the connector is equipped with second and sets stick portion, is used for
Pitman is installed, described second, which sets the pitman installed in stick portion, sets the pitman installed in stick portion with described first and put down substantially
Row；
Ailhead cap is connect with the head of screw far from one end of the shank of screw, can be limited described in the connector abjection
Head of screw.
Above technical scheme is preferred, and the guide rail is on the end face edge of the one end of the head of screw far from the shank of screw
The sliding slot that the axial direction of the head of screw opens up.
Above technical scheme is preferred, and two symmetrical sliding slots, the connection are arranged on a side wall of the head of screw
There are two fins, two fins to connect respectively with two sliding slots on the side wall for setting on head.
Above technical scheme is preferred, and the head of screw is connect with the ailhead cap thread.
Above technical scheme is preferred, and the two side walls of the head of screw are provided with locking far from one end of the shank of screw
External screw thread, the ailhead cap include top cover and side ring, are provided in the locking cooperated with the locking external thread in the side ring
Screw thread.
Above technical scheme is preferred, described first set stick portion include for place the first of the pitman set stick hole and
For placing the first fixation hole of lock-screw, first fixation hole sets stick hole with described first and is connected to and is set to described
One sets the top in stick hole, and described first sets the axis of the axis perpendicular to first fixation hole in stick hole, first fixation hole
It is threaded with the lock-screw, the pitman can be fixed on described first and set in stick hole by the lock-screw.
Above technical scheme is preferred, and described second to set stick portion include second setting stick hole and the second fixation hole, and described second
The side that fixed hole position sets stick hole in described second, the axis that the axis of second fixation hole sets stick hole perpendicular to described second
Line, the second fixation hole internal screw thread are connected with the lock-screw that can lock the pitman.
Above technical scheme is preferred, and described second sets the number equal at least two of stick hole and second fixation hole,
And described second sets stick hole and second fixation hole is arranged in a one-to-one correspondence.
Above technical scheme is preferred, described second set stick hole be circular hole, and each described second set stick hole aperture it is equal
It is different that the aperture in stick hole is set from described in other second.
Above technical scheme is preferred, is provided with external screw thread on the shank of screw, the outer spiral shell far from the head of screw
The screw pitch of line is greater than the externally threaded screw pitch close to the head of screw.
The advantages and positive effects of the present invention are: spinal fixation system provided in this embodiment, by pedicle of vertebral arch
The side of the head of screw 2 of screw connects connector 3, and connector 3 is equipped with second and sets stick portion, and second, which sets stick portion, to connect as needed
1,2 or multiple pitmans are connect, setting the pitman collective effect that stick portion is connect with first can be improved optical force, make orthopedic week
Phase shortens, and surgery recovery effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of spinal fixation system provided by the invention (pitman does not regard out)；
Fig. 2 is the structural schematic diagram of shank of screw provided by the invention；
Fig. 3 is the structural schematic diagram of head of screw provided by the invention；
Fig. 4 is the structural schematic diagram of connector provided by the invention；
Fig. 5 is the structural schematic diagram of ailhead cap provided by the invention.
Wherein: 1, shank of screw；2, head of screw；3, connector；4, external screw thread；5, U-type groove；6, second stick hole is set；7, second
Fixation hole；8, ailhead cap；9, guide rail；10, internal screw thread is locked；11, the first fixation hole；12, fin；13, locking external thread.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The spinal fixation system that the present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Existing pedicle screw is only capable of fixing a pitman, the two neighboring pedicle of vertebral arch screw on spine lengths direction
Only by a pitman connection between nail, fixed effect is poor, and post-operative recovery effect is poor, or even is easy to cause operative failure.
The present embodiment provides a kind of spinal fixation systems thus, as shown in Figure 1, the spinal fixation system include pitman and
Pedicle screw, pedicle of vertebral arch screw nail on installation pitman and are screwed into pedicle of vertebral arch, and pitman plays branch to backbone in the longitudinal direction
Support effect.Pedicle screw includes shank of screw 1, head of screw 2 and connector 3, as shown in Fig. 2, shank of screw 1 is equipped with external screw thread 4,
For connecting with pedicle of vertebral arch, external screw thread 4 is provided on shank of screw 1, the screw pitch of the external screw thread 4 far from head of screw 2 is greater than close to spiral shell
The screw pitch of the external screw thread 4 of ailhead 2.When shank of screw 1 is connect with pedicle of vertebral arch, the big external screw thread 4 of screw pitch is connect with cancellous bone, screw pitch
Small external screw thread 4 is connect with compact bone, be can effectively prevent screw loosening, is slipped, reinforces firmness.The screw pitch of external screw thread 4
It can also be gradually reduced from one end of the separate head of screw 2 of shank of screw 1 to one end close to head of screw 2.The separate spiral shell of shank of screw 1
One end of ailhead 2 is uniformly distributed there are three edge, and the cutting helical angle A of edge is 5 ° -30 °.Optionally, edge is to be cut from certainly
The edge of screw is attacked, the setting of edge makes pedicle screw have cutting function, protrudes into pedicle of vertebral arch conducive to shank of screw 1.
It is provided with first in the middle part of head of screw 2 and sets stick portion, for installing pitman, first sets the setting of stick portion two sides, and there are two phases
Pair side wall, be provided with the guide rail 9 being axially arranged along head of screw 2 at least one side wall；Connector 3 and leading on head of screw 2
Rail 9 is cooperatively connected, and connector 3 is equipped with and second sets stick portion, for installing pitman, second set the pitman installed in stick portion with
First to set the pitman installed in stick portion substantially parallel.
Spinal fixation system provided in this embodiment connects connector by the side of the head of screw 2 in pedicle screw
3, connector 3 is equipped with second and sets stick portion, and second sets stick portion can connect 1,2 or multiple pitmans as needed, with first
Optical force can be improved in the pitman collective effect for setting the connection of stick portion, makes orthopedic cycle time, surgery recovery effect is good.
In order to limit moving upwards for connector 3, the present embodiment further includes ailhead cap 8, and ailhead cap 8 and head of screw 2 are separate
One end of shank of screw 1 connects, and specifically, head of screw 2 is threadedly coupled with ailhead cap 8.The two side walls of head of screw 2 are far from shank of screw
1 one end is provided with locking external thread 13, and ailhead cap 8 includes top cover and side ring, is provided in side ring and matches with locking external thread 13
The locking internal screw thread 10 of conjunction.Connector 3 and the connection type of head of screw 2 are simple in the present embodiment, and connector 3 does not fall out screw
First 2, assembly is simple, and connection is reliable.In other embodiments, head of screw 2 and connector 3 can also be clamping, head of screw 2 with connect
Card slot, another setting fixture block, card slot and fixture block clamping is arranged in the lateral surface of first 3 one.
In the present embodiment, guide rail 9 is to open up in the end face of the one end of head of screw 2 far from shank of screw 1 along the axial direction of head of screw 2
Sliding slot.In the present embodiment, there are two sliding slots, two sliding slots to be symmetrical arranged on the side wall for setting only on the side wall of side.
There are two fins 12, two fins 12 to connect respectively with two sliding slots on the side wall for setting on connector 3.
As shown in figure 3, first to set stick portion include first setting stick hole and the first fixation hole 11, first set stick hole for place company
It takes over the baton, for the axis of the first fixation hole 11 perpendicular to the upper surface of head of screw 2, first sets the axis in stick hole perpendicular to the first fixation hole
11 axis, 11 internal screw thread of the first fixation hole are connected with lock-screw, and lock-screw is right after being threadedly coupled with the first fixation hole 11
Pitman, which is realized, to be compressed, and is set in stick hole to realize pitman being fixed on first.Optionally, first stick hole is set as U-type groove 5, U
The width of type groove 5 is adapted with the outer diameter of pitman, and the aperture of the first fixation hole 11 is greater than the width of U-type groove 5.
As shown in figure 4, second to set stick portion include second setting stick hole 6 and the second fixation hole 7, second sets stick hole 6 for placing
Pitman, the second fixation hole 7 are located at the described second side for setting stick hole 6, and the axis of the second fixation hole 7 sets stick hole perpendicular to second
6 axis, 7 internal screw thread of the second fixation hole are connected with the lock-screw that can lock pitman, and it is solid that lock-screw is fastened on second
Determine in hole 7 and pitman is fixed.
In present embodiment, second sets stick hole 6 as circular hole, and is two, the second fixation hole for setting stick hole 6 corresponding to second
7 be two.Each second sets the aperture in stick hole 6, and second to set the aperture in stick hole 6 different from other, therefore can be suitable for having
The pitman of different-diameter.Second diameter range for setting stick hole 6 is 2mm-10mm, adjustable between preferably 3mm-7mm, to adapt to
The demand of different patients.
In other embodiments, the second number for setting stick hole 6 can set stick hole 6 and be when second for 1,3 or more
When multiple, the size that difference second sets stick hole 6 be may be different or the same.
During surgery, when being screwed into pedicle screw into pedicle of vertebral arch, the connection of the pedicle screw after needing to guarantee to be screwed into
First 3 are located remotely from centrum side, and the pitman of connector 3 and its connection and backbone is avoided to generate interference.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (10)
1. a kind of spinal fixation system, including pitman and pedicle screw, which is characterized in that the pedicle screw includes:
Shank of screw (1), the shank of screw (1) are equipped with external screw thread (4), for connecting with pedicle of vertebral arch；
Head of screw (2) is connect with the shank of screw (1), and for installing pitman is provided in the middle part of the head of screw (2)
One sets stick portion, and described first sets opposite side wall there are two the settings of stick portion two sides, is provided at least one described side wall along institute
State the guide rail (9) that head of screw (2) is axially arranged；
The guide rail (9) on connector (3), with the head of screw (2) is cooperatively connected, and the connector (3) is equipped with the
Two set stick portion, and for installing pitman, described second, which sets the pitman installed in stick portion, sets with described first and install in stick portion
Pitman is substantially parallel；
Ailhead cap (8) connect far from the one end of the shank of screw (1) with the head of screw (2), can limit the connector
(3) deviate from the head of screw (2).
2. spinal fixation system according to claim 1, it is characterised in that: the guide rail (9) is in the head of screw (2)
The sliding slot that the end face of one end far from the shank of screw (1) is axially opened up along (2) of the head of screw.
3. spinal fixation system according to claim 2, it is characterised in that: set on a side wall of the head of screw (2)
Set two symmetrical sliding slots, on the connector (3) setting there are two fin (12), two fins (12) respectively with the side
Two sliding slot connections on wall.
4. spinal fixation system according to claim 1, it is characterised in that: the head of screw (2) and the ailhead cap (8)
It is threadedly coupled.
5. spinal fixation system according to claim 4, it is characterised in that: the two side walls of the head of screw (2) are separate
One end of the shank of screw (1) is provided with locking external thread (13), and the ailhead cap (8) includes top cover and side ring, the side ring
Inside it is provided with the locking internal screw thread (10) with the locking external thread (13) cooperation.
6. spinal fixation system according to claim 1, it is characterised in that: described first to set stick portion include for placing
It states the first of pitman and sets stick hole and the first fixation hole (11) for placing lock-screw, first fixation hole (11) and institute
It states first to set the connection of stick hole and be set to the described first top for setting stick hole, described first sets the axis in stick hole (6) perpendicular to institute
The axis of the first fixation hole (11) is stated, first fixation hole (11) is threaded with the lock-screw, the lock-screw
The pitman can be fixed on to described first to set in stick hole (6).
7. spinal fixation system according to claim 1, it is characterised in that: described second, which sets stick portion, sets stick hole including second
(6) and the second fixation hole (7), second fixation hole (7) are located at the described second side for setting stick hole (6), and described second is fixed
The axis that the axis in hole (7) sets stick hole (6) perpendicular to described second, the second fixation hole (7) internal screw thread are connected with and can lock
The lock-screw of the tight pitman.
8. spinal fixation system according to claim 7, it is characterised in that: described second sets stick hole (6) and described second
The number equal at least two of fixation hole (7), and described second set stick hole (6) and second fixation hole (7) one-to-one correspondence set
It sets.
9. spinal fixation system according to claim 8, it is characterised in that: described second sets stick hole (6) as circular hole, and every
It is different that the aperture in stick hole (6) is set from described in other second in a described second aperture for setting stick hole (6).
10. spinal fixation system according to claim 1, it is characterised in that: be provided with external screw thread on the shank of screw (1)
(4), the screw pitch of the external screw thread (4) far from the head of screw (2) is greater than the external screw thread close to the head of screw (2)
(4) screw pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329257.4A CN109875669A (en) | 2019-04-23 | 2019-04-23 | A spinal fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329257.4A CN109875669A (en) | 2019-04-23 | 2019-04-23 | A spinal fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109875669A true CN109875669A (en) | 2019-06-14 |
Family
ID=66938164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910329257.4A Pending CN109875669A (en) | 2019-04-23 | 2019-04-23 | A spinal fixation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109875669A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811800A (en) * | 2019-11-05 | 2020-02-21 | 云南欧铂斯医疗科技有限公司 | Combined spinal strong orthopedic fixing device |
| CN111329568A (en) * | 2020-04-03 | 2020-06-26 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
| CN112220545A (en) * | 2020-10-28 | 2021-01-15 | 天津市威曼生物材料有限公司 | Spinal screw |
| CN115363731A (en) * | 2022-08-24 | 2022-11-22 | 北京格利兹科技有限公司 | Dynamic stabilization structure for spinal surgery |
| CN117442318A (en) * | 2023-12-04 | 2024-01-26 | 中国人民解放军空军特色医学中心 | Spinal fixation instrument |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102160814A (en) * | 2011-03-22 | 2011-08-24 | 邱勇 | Spinal resetting 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 |
| US20120303062A1 (en) * | 2011-05-27 | 2012-11-29 | Yann Amstutz | Minimally invasive spinal fixation system including vertebral alignment features |
| CN105342684A (en) * | 2015-10-29 | 2016-02-24 | 山东航维骨科医疗器械股份有限公司 | U-shaped pedicle screw |
| US20170348026A1 (en) * | 2016-06-06 | 2017-12-07 | Stryker European Holdings I, Llc | Paraxial revision rod-to-rod connector |
| CN208492271U (en) * | 2017-09-26 | 2019-02-15 | 常州集硕医疗器械有限公司 | Connector |
| CN210541780U (en) * | 2019-04-23 | 2020-05-19 | 天津正天医疗器械有限公司 | Spine fixing device |
-
2019
- 2019-04-23 CN CN201910329257.4A patent/CN109875669A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102160814A (en) * | 2011-03-22 | 2011-08-24 | 邱勇 | Spinal resetting device |
| US20120303062A1 (en) * | 2011-05-27 | 2012-11-29 | Yann Amstutz | Minimally invasive spinal fixation system including vertebral alignment features |
| 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 |
| CN105342684A (en) * | 2015-10-29 | 2016-02-24 | 山东航维骨科医疗器械股份有限公司 | U-shaped pedicle screw |
| US20170348026A1 (en) * | 2016-06-06 | 2017-12-07 | Stryker European Holdings I, Llc | Paraxial revision rod-to-rod connector |
| CN208492271U (en) * | 2017-09-26 | 2019-02-15 | 常州集硕医疗器械有限公司 | Connector |
| CN210541780U (en) * | 2019-04-23 | 2020-05-19 | 天津正天医疗器械有限公司 | Spine fixing device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811800A (en) * | 2019-11-05 | 2020-02-21 | 云南欧铂斯医疗科技有限公司 | Combined spinal strong orthopedic fixing device |
| CN111329568A (en) * | 2020-04-03 | 2020-06-26 | 贵州医科大学附属医院 | Flexible combined fixing device for spine |
| CN112220545A (en) * | 2020-10-28 | 2021-01-15 | 天津市威曼生物材料有限公司 | Spinal screw |
| CN112220545B (en) * | 2020-10-28 | 2023-12-26 | 天津市威曼生物材料有限公司 | Spinal screw |
| CN115363731A (en) * | 2022-08-24 | 2022-11-22 | 北京格利兹科技有限公司 | Dynamic stabilization structure for spinal surgery |
| CN115363731B (en) * | 2022-08-24 | 2025-04-08 | 北京格利兹科技有限公司 | A dynamic stabilization structure for spinal surgery |
| CN117442318A (en) * | 2023-12-04 | 2024-01-26 | 中国人民解放军空军特色医学中心 | Spinal fixation instrument |
| CN117442318B (en) * | 2023-12-04 | 2024-08-13 | 中国人民解放军空军特色医学中心 | Spinal fixation instrument |
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