CN202027695U - Cervical vertebra fusion inner fixing device convenient for implanting by screw - Google Patents
Cervical vertebra fusion inner fixing device convenient for implanting by screw Download PDFInfo
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- CN202027695U CN202027695U CN2011200614096U CN201120061409U CN202027695U CN 202027695 U CN202027695 U CN 202027695U CN 2011200614096 U CN2011200614096 U CN 2011200614096U CN 201120061409 U CN201120061409 U CN 201120061409U CN 202027695 U CN202027695 U CN 202027695U
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- cervical vertebra
- road board
- fixing device
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Abstract
The utility model provides a cervical vertebra fusion inner fixing device convenient for implanting by screw. The fixing device comprises a front path plate part and a fusion device part; the fusion device part is connected on the rear surface of one end of the front path plate part. The cervical vertebra fusion inner fixing device convenient for implanting by screw in the utility model, provides two bone screw implanting directions by an inclined screw hole a perpendicular screw hole, thereby provides convenience for implanting bone screws; especially provides an inclined and a perpendicular bone screw implanting angle to an upper and a lower vertebral body in the operations to cervical 2/3, 3/4, 6/7 vertebrae body, and cervical 7/ thoracic 1 vertebra body. Applying the device in the utility model in cervical vertebra front path intervertebral disk resection bone implanting fusion inner fixing operations can make it convenient for an operator to observe vertebral body and operate apparatus; avoid the osteal blocks in the screw implanting path, fully utilize the operation space and reduce the tractions to neck tissues; thereby reduces the operation complications greatly.
Description
Technical field
This utility model relates to cervical vertebra surgical medical equipment technical field, in particular for the fixing fixture of neck 2/3,3/4,6/7 vertebral body and neck 7/ breast 1 vertebral body, particularly, relates to and a kind ofly is convenient to the cervical vertebra that screw inserts and merges inner fixing device.
Background technology
Cervical spondylosis is because of intervertebral disc degradation itself and the Secondary cases change stimulates or the compressing adjacent tissue, and causes the cervical vertebra degenerated disease of various sings and symptomses.At present, anterior cervical vertebrae disc excision intervertebral bone-graft fusion internal fixation has been widely used in the operative treatment of cervical spondylosis, has simple to operately, and wound is little, goes out advantages such as insufficiency of blood.When traditional internal fixation screw is inserted, need vertically insert corresponding cone with screw by the nail hole on the titanium plate.Yet, because the existence of physiological regions degree, when the operation sections is positioned at neck 3/4, especially during neck 2/3, surgery location is darker, and the screw of upper cone is vertically inserted, tend to be subjected to stopping of mandibular bone, while is narrow and small because of the working place, tends to increase the weight of the tractive of internal organs sheath and vagina vasorum, causes the damage of esophagus, trachea, superior laryngeal nerve and neck outside trunk.In like manner, when the operation sections is positioned at neck 6/7, especially during neck 7/ breast 1, the screw of the next cone is vertically inserted, can be subjected to presternal stopping, often need sting except that the part presternum enlarging operative space, and can cause the damage of trunk outside esophagus, trachea, recurrent laryngeal nerve and the neck because of excessive tractive, operation wound is big.Also there is not a kind of good scheme to address this problem at present.
The utility model content
At defective of the prior art, the purpose of this utility model provides a kind of cervical vertebra fusion inner fixing device that screw is inserted of being convenient to.
According to an aspect of the present utility model, provide and be convenient to the cervical vertebra that screw inserts and merge inner fixing device, comprise preceding road board, fusion device portion, described fusion device portion is connected the place, rear surface of described preceding road board one end.
Preferably, the end place that described preceding road board is connected with described fusion device portion is provided with the skew nailing hole, and an end place of the disconnected described fusion device of described preceding road board portion is provided with vertical nail hole.
Preferably, described skew nailing is provided with first female thread in the hole, and described vertical nail is provided with second female thread in the hole.
Preferably, described preceding road board comprises a protuberance, and wherein, described protuberance is positioned at the rear surface place of described preceding road board one end, and described fusion device portion is connected on the protuberance of described preceding road board.
Preferably, on the vertical direction of described preceding road board, the length of described fusion device portion is the twice of the length of described protuberance.
Preferably, in described skew nailing hole oblique screw is installed, wherein, the front end of described oblique screw penetrates from the front surface of described preceding road board, runs through described preceding road board and stretches to direction away from an end of the disconnected described fusion device of described preceding road board portion.
Preferably, described oblique screw is a tapping screw, its leading portion partly is distributed with first self-tapping screw, its back segment partly is distributed with first from locking screw thread, wherein, described first from locking screw thread and described first female thread is complementary, the external diameter of described first self-tapping screw less than described first oneself lock the external diameter of screw thread.
Preferably, in described vertical nail hole means of vertical screws is installed, wherein, the front end of described means of vertical screws penetrates from the front surface of described preceding road board, runs through described preceding road board and passes from the rear surface of described preceding road board.
Preferably, described means of vertical screws is a tapping screw, its leading portion partly is distributed with second self-tapping screw, its back segment partly is distributed with second from locking screw thread, wherein, described second from locking screw thread and described second female thread is complementary, the external diameter of described second self-tapping screw less than described second oneself lock the external diameter of screw thread.
Preferably, described preceding road board and described fusion device portion are an integral body.
The cervical vertebra that screw inserts of being convenient to that provides according to this utility model merges inner fixing device, according to the characteristics of cervical curvature, by described skew nailing hole and vertically follow closely the hole, provides two kinds of bone screw placing directions simultaneously, for inserting of bone screw provides convenience.For example, when the device that this practical property need be provided is used for going fixedly neck 2/3 operation, because neck 2 vertebral bodys are positioned at the rear of mandibular bone, if want when perpendicular to the direction of human body coronalplane neck 2 vertebral bodys being inserted bone screw, the mandibular bone that is positioned on the screw path of insertion can stop the operation that screw is inserted.Therefore provide convenience in order farthest to insert for screw, this utility model is at row neck 2/3 and neck 3/4 operation the time, for the vertebral body that is positioned at the top provides the screw of diagonal upward direction to insert angle,, the vertebral body that is positioned at the below inserts angle for providing perpendicular to the screw of human body coronalplane direction; Simultaneously, at row neck 6/7 and 1 operation of neck 7/ breast the time, be positioned at the breastbone that screw inserts on the circuit and can stop the operation that screw is inserted, this utility model is at row neck 6/7 and 1 operation of neck 7/ breast the time, insert angle for the vertebral body that is positioned at the below provides the oblique screw of direction down, insert angle for the vertebral body that is positioned at the top provides perpendicular to the screw of human body coronalplane direction.Using this utility model in anterior cervical vertebrae discectomy bone-graft fusion internal fixation operation can be so that the patient observes vertebral body and operating apparatus, the bone of avoiding putting on the nail circuit stops, make full use of operative space, alleviate tractive, thereby greatly reduce postoperative complication neck tissue.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 illustrates according to first embodiment of the present utility model, is convenient to the Facad structure sketch map that cervical vertebra that screw inserts merges inner fixing device;
Fig. 2 illustrates according to second embodiment of the present utility model, is convenient to the Facad structure sketch map that cervical vertebra that screw inserts merges inner fixing device;
Fig. 3 illustrates according to the 3rd embodiment of the present utility model, is convenient to the Facad structure sketch map that cervical vertebra that screw inserts merges inner fixing device;
Fig. 4 illustrates according to the 4th embodiment of the present utility model, is convenient to the side structure sketch map that cervical vertebra that screw inserts merges inner fixing device;
Fig. 5 illustrates according to the 5th embodiment of the present utility model, is convenient to the side structure sketch map that cervical vertebra that screw inserts merges inner fixing device;
Fig. 6 illustrates according to the 6th embodiment of the present utility model, is convenient to the side structure sketch map that cervical vertebra that screw inserts merges inner fixing device.
The specific embodiment
Fig. 1 illustrates according to first embodiment of the present utility model, is convenient to the Facad structure sketch map that cervical vertebra that screw inserts merges inner fixing device.Particularly, in the present embodiment, described cervical vertebra merges inner fixing device and comprises preceding road board 1, fusion device portion (not shown in figure 1), and wherein, described fusion device portion is connected the place, rear surface of described preceding road board 1 one ends 12.More specifically, an end 12 places that described preceding road board 1 is connected with described fusion device portion are provided with skew nailing hole 31 and skew nailing hole 32, and an end 16 places of the disconnected described fusion device of described preceding road board 1 portion are provided with vertical nail hole 51 and vertically follow closely hole 52.Further, be provided with first female thread in described skew nailing hole 31 and the skew nailing hole 32, described vertical nail hole 51 and vertically follow closely and be provided with second female thread in the hole 52.Described preceding road board 1 and described fusion device portion are preferably an integral body.
Preferably, in described skew nailing hole oblique screw is installed, wherein, the front end of described oblique screw penetrates from the front surface 10 of described preceding road board 1, runs through described preceding road board 1 and stretches to direction away from an end 16 of the disconnected described fusion device of described preceding road board 1 portion.For example, in described skew nailing hole 31, screw in oblique screw 41 is arranged, wherein, described oblique screw 41 is preferably tapping screw, its front end 410 penetrates from the front surface 10 of described preceding road board 1, runs through described preceding road board 1 and stretches to direction away from an end 16 of the disconnected described fusion device of described preceding road board 1 portion; Again for example, in described skew nailing hole 32, screw in oblique screw 42 is arranged, wherein, described oblique screw 42 is preferably tapping screw, its front end 420 penetrates from the front surface 10 of described preceding road board 1, runs through described preceding road board 1 and stretches to direction away from an end 16 of the disconnected described fusion device of described preceding road board 1 portion.
Further preferably, in described vertical nail hole means of vertical screws is installed, wherein, the front end of described means of vertical screws penetrates from the front surface 10 of described preceding road board 1, runs through described preceding road board 1 and passes from the rear surface of described preceding road board 1.For example, screwing in described vertical nail hole 51 has means of vertical screws 61, and wherein, the front end of described means of vertical screws 61 penetrates from the front surface 10 of described preceding road board 1, runs through described preceding road board 1 and passes from the rear surface of described preceding road board 1; Again for example, screwing in described vertical nail hole 52 has means of vertical screws 62, and wherein, the front end of described means of vertical screws 62 penetrates from the front surface 10 of described preceding road board 1, runs through described preceding road board 1 and passes from the rear surface of described preceding road board 1.
Like this, when fixing neck 2/3 vertebral body by described cervical vertebra fusion inner fixing device, described oblique screw 41 and oblique screw 42 make them can squeeze into neck 2 vertebral bodys from described preceding road 1 li direction of stretching out of board, and described means of vertical screws 61 and described means of vertical screws 62 make them can squeeze into neck 3 vertebral bodys from described preceding road 1 li direction of stretching out of board; And when being used for fixing neck 6/7 vertebral body by described cervical vertebra fusion inner fixing device, described oblique screw 41 and oblique screw 42 make them can squeeze into neck 7 vertebral bodys from described preceding road 1 li direction of stretching out of board, and described means of vertical screws 61 and described means of vertical screws 62 make them can squeeze into neck 6 vertebral bodys from described preceding road 1 li direction of stretching out of board.When described cervical vertebra fusion inner fixing device was fixed on the cervical vertebra, described means of vertical screws 61 and means of vertical screws 62 preferably were substantially perpendicular to the human body coronalplane.The leading portion of described oblique screw 41 partly is distributed with first self-tapping screw 412, and the leading portion of described oblique screw 42 partly is distributed with second self-tapping screw 422.Described oblique screw 41 is the wedge area that the outside becomes 2.5 ° at angle with the scope of controlling of described oblique screw 42, and changes in the example at one, and described oblique screw 41 can become the 2.5 ° of wedge areas in angle for the inboard with the scope of controlling of described oblique screw 42.
Fig. 2 illustrates according to second embodiment of the present utility model, is convenient to the Facad structure sketch map that cervical vertebra that screw inserts merges inner fixing device.Particularly, in the present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 3/4 vertebral body, and wherein, described oblique screw 41 and oblique screw 42 are driven in neck 3 vertebral bodys 93, and described means of vertical screws 61 and means of vertical screws 62 are driven in neck 4 vertebral bodys 94.
Fig. 3 illustrates according to the 3rd embodiment of the present utility model, is convenient to the Facad structure sketch map that cervical vertebra that screw inserts merges inner fixing device.Particularly, in the present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 6/7 vertebral body, and wherein, described oblique screw 41 and oblique screw 42 are driven in neck 7 vertebral bodys 97, and described means of vertical screws 61 and means of vertical screws 62 are driven in neck 6 vertebral bodys 96.And in a variation example of present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 7/ breast 1 vertebral body, wherein, described oblique screw 41 and oblique screw 42 are driven in breast 1 vertebral body, and described means of vertical screws 61 and means of vertical screws 62 are driven in neck 7 vertebral bodys.
Fig. 4 illustrates according to the 4th embodiment of the present utility model, is convenient to the side structure sketch map that cervical vertebra that screw inserts merges inner fixing device.Particularly, in the present embodiment, described cervical vertebra merges inner fixing device and comprises preceding road board 1, fusion device portion 2, and described fusion device portion 2 is connected 18 places, rear surface of described preceding road board 1 one ends 12.Preferably, described preceding road board 1 comprises a protuberance 14, and wherein, described protuberance 14 is positioned at 18 places, rear surface of described preceding road board 1 one ends 12, and described fusion device portion 2 is connected on the protuberance 14 of described preceding road board 1.More preferably, on the vertical direction of described preceding road board 1 (when described cervical vertebra merged inner fixing device and is fixed in vertebral body, this vertical direction was substantially perpendicular to the human body coronalplane), the length L of described fusion device portion 2
2It is the length L of described protuberance 14
1Twice, that is to say that described fusion device portion 2 is closely connected with described preceding road board 1, and described fusion device portion 2 occupies about 2//3 of intervertebral space, 1/3 of intervertebral space remainder is that the protuberance 14 of described preceding road board 1 is occupied.Wherein, on the first surface 211 of described fusion device portion 2, be distributed with some double wedges 212, on the second surface 221 of described fusion device portion 2, be distributed with some double wedges 222.
More specifically, an end 12 places that described preceding road board 1 is connected with described fusion device portion 2 are provided with skew nailing hole 32, and an end 16 places of the disconnected described fusion device of described preceding road board 1 portion 2 are provided with vertical nail hole 52.Wherein, be provided with first female thread in the described skew nailing hole 32, be provided with second female thread in the described vertical nail hole 52.Further, oblique screw 42 is installed in the described skew nailing hole 32, described oblique screw 42 is a tapping screw, its leading portion partly is distributed with first self-tapping screw 422, its back segment partly is distributed with first from locking screw thread 423, wherein, described first is complementary with described first female thread from locking screw thread 423, the external diameter of described first self-tapping screw 422 less than described first from the external diameter that locks screw thread 423.In the described vertical nail hole 52 means of vertical screws 62 is installed, described means of vertical screws 62 is a tapping screw, its leading portion partly is distributed with second self-tapping screw 622, its back segment partly is distributed with second from locking screw thread 623, wherein, described second is complementary with described second female thread from locking screw thread 623, the external diameter of described second self-tapping screw 622 less than described second from the external diameter that locks screw thread 623.
Preferably, described preceding road board 1 and described fusion device portion 2 are an integral body.Preferably, the scope of controlling of described oblique screw 42 is the wedge area that head/tail end becomes 40 ° ± 5 ° at angle.When described cervical vertebra merged inner fixing device and is fixed in neck 2/3 vertebral body or neck 3/4 vertebral body, the first surface 211 of described fusion device portion 2 was a upper surface, and described second surface 221 is a lower surface; And when described cervical vertebra merged inner fixing device and oppositely is fixed in neck 6/7 vertebral body or neck 7/ breast 1 vertebral body up and down, the first surface 211 of described fusion device portion 2 was a lower surface, and described second surface 221 is a upper surface.
Fig. 5 illustrates according to the 5th embodiment of the present utility model, is convenient to the side structure sketch map that cervical vertebra that screw inserts merges inner fixing device.Particularly, in the present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 2/3 vertebral body, and wherein, described oblique screw 42 is driven in neck 2 vertebral bodys 92, and described means of vertical screws 62 is driven in neck 3 vertebral bodys 93.And in a variation example of present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 3/4 vertebral body, and wherein, described oblique screw 42 is driven in neck 3 vertebral bodys, and described means of vertical screws 62 is driven in neck 4 vertebral bodys.
Fig. 6 illustrates according to the 6th embodiment of the present utility model, is convenient to the side structure sketch map that cervical vertebra that screw inserts merges inner fixing device.Particularly, in the present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 6/7 vertebral body, and wherein, described oblique screw 42 is driven in neck 7 vertebral bodys 97, and described means of vertical screws 62 is driven in neck 6 vertebral bodys 96.And in a variation example of present embodiment, described cervical vertebra merges inner fixing device and is used to fixedly neck 7/ breast 1 vertebral body, and wherein, described oblique screw 42 is driven in breast 1 vertebral body, and described means of vertical screws 62 is driven in neck 7 vertebral bodys.
More than specific embodiment of the utility model is described.It will be appreciated that this utility model is not limited to above-mentioned specific implementations, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present utility model.
Claims (10)
1. be convenient to the cervical vertebra that screw inserts and merge inner fixing device for one kind, comprise preceding road board, fusion device portion, it is characterized in that, described fusion device portion is connected the place, rear surface of described preceding road board one end.
2. cervical vertebra according to claim 1 merges inner fixing device, it is characterized in that, the end place that described preceding road board is connected with described fusion device portion is provided with the skew nailing hole, and an end place of the disconnected described fusion device of described preceding road board portion is provided with vertical nail hole.
3. cervical vertebra according to claim 2 merges inner fixing device, it is characterized in that described skew nailing is provided with first female thread in the hole, and described vertical nail is provided with second female thread in the hole.
4. merge inner fixing device according to each described cervical vertebra in the claim 1 to 3, it is characterized in that described preceding road board comprises a protuberance, wherein, described protuberance is positioned at the rear surface place of described preceding road board one end, and described fusion device portion is connected on the protuberance of described preceding road board.
5. cervical vertebra according to claim 4 merges inner fixing device, it is characterized in that, on the vertical direction of described preceding road board, the length of described fusion device portion is the twice of the length of described protuberance.
6. cervical vertebra according to claim 4 merges inner fixing device, it is characterized in that, in described skew nailing hole, oblique screw is installed, wherein, the front end of described oblique screw penetrates from the front surface of described preceding road board, runs through described preceding road board and stretches to direction away from an end of the disconnected described fusion device of described preceding road board portion.
7. cervical vertebra according to claim 6 merges inner fixing device, it is characterized in that, described oblique screw is a tapping screw, its leading portion partly is distributed with first self-tapping screw, its back segment partly is distributed with first from locking screw thread, wherein, described first from locking screw thread and described first female thread is complementary, the external diameter of described first self-tapping screw less than described first oneself lock the external diameter of screw thread.
8. cervical vertebra according to claim 4 merges inner fixing device, it is characterized in that, in described vertical nail hole, means of vertical screws is installed, wherein, the front end of described means of vertical screws penetrates from the front surface of described preceding road board, runs through described preceding road board and passes from the rear surface of described preceding road board.
9. cervical vertebra according to claim 8 merges inner fixing device, it is characterized in that, described means of vertical screws is a tapping screw, its leading portion partly is distributed with second self-tapping screw, its back segment partly is distributed with second from locking screw thread, wherein, described second from locking screw thread and described second female thread is complementary, the external diameter of described second self-tapping screw less than described second oneself lock the external diameter of screw thread.
According in the claim 1 to 3 each or 5 to 9 in each described cervical vertebra merge inner fixing device, it is characterized in that described preceding road board and described fusion device portion are an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200614096U CN202027695U (en) | 2011-03-10 | 2011-03-10 | Cervical vertebra fusion inner fixing device convenient for implanting by screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200614096U CN202027695U (en) | 2011-03-10 | 2011-03-10 | Cervical vertebra fusion inner fixing device convenient for implanting by screw |
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| Publication Number | Publication Date |
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| CN202027695U true CN202027695U (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200614096U Expired - Fee Related CN202027695U (en) | 2011-03-10 | 2011-03-10 | Cervical vertebra fusion inner fixing device convenient for implanting by screw |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104271058A (en) * | 2012-01-31 | 2015-01-07 | 托莱多大学 | Bioactive fusion device |
| CN105232133A (en) * | 2015-09-07 | 2016-01-13 | 徐兆万 | Anterior cervical pedicle screw plate fixing system |
-
2011
- 2011-03-10 CN CN2011200614096U patent/CN202027695U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104271058A (en) * | 2012-01-31 | 2015-01-07 | 托莱多大学 | Bioactive fusion device |
| CN105232133A (en) * | 2015-09-07 | 2016-01-13 | 徐兆万 | Anterior cervical pedicle screw plate fixing system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140310 |