CN2904965Y - A spine internal fixation device and tool dedicated therefor - Google Patents
A spine internal fixation device and tool dedicated therefor Download PDFInfo
- Publication number
- CN2904965Y CN2904965Y CN 200620101178 CN200620101178U CN2904965Y CN 2904965 Y CN2904965 Y CN 2904965Y CN 200620101178 CN200620101178 CN 200620101178 CN 200620101178 U CN200620101178 U CN 200620101178U CN 2904965 Y CN2904965 Y CN 2904965Y
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- China
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- sleeve
- screw
- pedicle screw
- internal fixation
- pedicle
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- Expired - Lifetime
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Abstract
The utility model relates to the field of Medical equipment, specifically the invention is a spinal internal fixation device and special instrument. Including pedicle screw, the connecting rod of clamping locking pieces which are fixed vertically in the tail groove of arch screw, the tail groove has the rifled which is suitable with locking pieces, the upper surface of trough walls of tail groove has several vertical screw holes, the special tools of this advice includes the sleeve with inner hole and the screws used for the fixation of pedicle screw, the lower surface of sleeve has several through-holes corresponded with the position of the screw holes, the bottom of sleeve has also U-shaped groove which can match with pedicle screws. Applying the spinal internal fixation device has the advantages that large scars will not be left after operation, reducing the psychological and physical pains of patients, accurate orientation, a variety of complications caused by the imprecise orientation of pedicle screws can be reduced, in addition, the operation of dilator suited with sleeve will be more easy and more precise.
Description
Technical field
This utility model relates to medical instruments field, specifically a kind of way of escape minimally invasive spine inner fixing device and specific purpose tool thereof.
Background technology
At present, the internal fixation of spine device has been widely used in treatment lumbar vertebra compression fracture, tumor of spine, deformity of spine rectification and other various clinical treatments that need the spinal disease of operative treatment, and spinal column way of escape pedicle of vertebral arch internal fixation is the very rational a kind of method of the above-mentioned disease of treatment.For existing spinal column pedicle of vertebral arch inner fixing device, conventional method is divided following step when undergoing surgery: 1. take X-ray according to patient's affected part situation; 2. select suitable pedicle screw model; 3. cut illing skin; 4. screw tap boring; 5. implant four pedicle screws; 6. between pedicle screw, settle connecting rod; 7. use device for spreading distraction pedicle screw; 8. be fastenedly connected the bar screw; 9. sew up the incision.Use above-mentioned internal fixation of spine device to undergo surgery and have following defective, at first, because above-mentioned pedicle screw is planted in subcutaneous, and need to settle connecting rod between the pedicle screw and strutted, therefore having to cut illing skin finishes aforesaid operations, this will bring huge misery to the patient, and stay permanent cicatrix after surgery.Secondly; if the screw of spinal fixation trains off; will touch nerve and cause lifelong paralysis; yet the position that can hold screw is very little again; it is not exposed to the outside in the operation, and the doctor can only determine by rule of thumb, so cause the case of direct paralysis on operating-table through regular meeting; the position is inaccurate also to cause fitting operation failure easily and go into, and nail-bar connects and the easy complication such as become flexible of nail-bone interface.In addition, the operation that struts of pedicle screw is usually used and is strutted pincers and finish in the prior art, and this operational approach relies on doctor's experience fully, and it struts distance and can't accurately locate.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of operative incision little, implants accurate positioning, and is simple to operate, way of escape minimally invasive spine inner fixing device and specific purpose tool thereof rational in infrastructure.
Of the present utility model solving the problems of the technologies described above by following technical proposals solved: a kind of internal fixation of spine device, comprise pedicle screw, be vertically fixed on the connecting rod in the pedicle screw stern notch and be used to compress the locking member of connecting rod, be provided with the female thread that matches with locking member in the described stern notch, the upper surface of stern notch cell wall is provided with several vertical threaded bore.
As preferably, described pedicle screw is provided with axis through bore.
A kind of specific purpose tool of internal fixation of spine device, comprise the sleeve of band hexagonal endoporus and be used for fixing pedicle screw and telescopic screw rod, telescopic lower surface is provided with several and the corresponding through hole of screwhole position, and described cover tube bottom also is provided with the U-lag that cooperates with the pedicle screw stern notch.
As preferably, described sleeve also is equipped with dilator, and described dilator two ends are provided with annular collar, and annular collar internal diameter and sleeve diameter are adaptive, and the annular collar at two ends connects by corrugated tubing.
As preferably, described dilator two ends are respectively equipped with upper and lower two annular collars, and last annular collar is connected by rod member with following annular collar.
As preferably, also be provided with ring-shaped lug on the described sleeve pipe outer tube wall.
As preferably, described pedicle screw also is equipped with the baffle of circular arc.
The special-purpose boring bar tool of a kind of internal fixation of spine device of the present utility model, described boring bar tool are the screw tap of a band through hole.
Adopt the utility model of the technical program, its beneficial effect is, but because the pedicle screw afterbody branch sleeve of a kind of internal fixation of spine device that this utility model provides, the sleeve below is provided with U-lag simultaneously, this design the time is only cut the patient in operation and is implanted the skin at pedicle screw place and need not that the incision of skin between screw and the connecting rod can be finished connecting rod and settle the operation that struts with pedicle screw, postoperative can not stay excessive cicatrix, has alleviated patient's physiology and mental anguish greatly.Secondly, a kind of vertebra inner fixing device of the present utility model is accurately located by the mode of squeezing into the location guide pin earlier, can reduce greatly to go into the position because of pedicle screw and forbidden the various complication that cause.In addition, the dilator that is complementary with sleeve makes that also to strut operation simpler, more accurate.
Description of drawings
Fig. 1 is the assembling perspective view of present embodiment 1.
Fig. 2 is the perspective view of screw rod among the embodiment.
Fig. 3 is the perspective view of embodiment middle sleeve.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the perspective view of lock screw among the embodiment.
Fig. 6 is the perspective view of pedicle screw among the embodiment.
Fig. 7 is the B-B cutaway view of Fig. 6.
Fig. 8 is the perspective view of dilator in the present embodiment 1.
Fig. 9 is the perspective view of embodiment plug tap.
Figure 10 is the C-C cutaway view of Fig. 9.
Figure 11 is the perspective view of baffle among the embodiment.
Figure 12 is the perspective view of location guide pin among the embodiment.
Figure 13 is the assembling perspective view of present embodiment 2.
Figure 14 is the assembling perspective view of present embodiment 3.
Figure 15 is the perspective view of this utility model operation technique after finishing.
The specific embodiment
Describe in further detail with 1 pair of this utility model of the specific embodiment below in conjunction with accompanying drawing 1-12, accompanying drawing 15:
As Fig. 1-shown in Figure 12, a kind of internal fixation of spine device, comprise the pedicle screw 1 that is provided with axis through bore 16, be vertically fixed on the connecting rod 9 in the pedicle screw stern notch 12 and be used to compress the lock screw 4 of connecting rod, be provided with the female thread 15 that matches with lock screw 4 in the described stern notch 12, the upper surface of stern notch cell wall 14 is provided with 6 vertical threaded bore 13.
Specific purpose tool as this internal fixation of spine device comprises the sleeve 2 of being with the hexagonal endoporus and the screw rod 3 that is used for fixing pedicle screw 1 and sleeve 2, also is provided with ring-shaped lug 22 on described sleeve pipe 2 outer tube walls.The lower surface of sleeve 2 is provided with 6 and the corresponding through hole 24 in screw 13 positions, screw 13 is fixedlyed connected pedicle screw 1 with nut 32 by the screw rod 3 of double headed roller screw thread 33 with through hole 24 with sleeve 2, described sleeve 2 bottoms also are provided with the U-lag 23 that cooperates with pedicle screw stern notch 12.
Described sleeve 2 also is equipped with dilator 5, and described dilator 5 two ends are provided with annular collar 52, and annular collar 52 internal diameters and sleeve 2 diameters are adaptive, and the annular collar 52 at two ends connects by corrugated tubing 53.
Described pedicle screw 1 also is equipped with the baffle 7 of circular arc.
The special-purpose boring bar tool of a kind of internal fixation of spine device of the present utility model is the screw tap 6 of a band through hole 62.
The using method of a kind of internal fixation of spine device that this utility model provides:
Before the operation, take X-ray according to patient's affected part situation.During operation, cutting needs to implant pedicle screw position skin.At first select correct position and angle to squeeze into location guide pin 8, the diameter of this location guide pin 8 is slightly less than the through-hole diameter on pedicle screw 1 and the screw tap 6, and then screw tap 6 is inserted in guide pin 8 opens the hole in advance, takes out screw tap 6 then; Screw rod 3 is inserted in the through hole 24 on the sleeve walls, then screw rod 3 is screwed in the screw 13 that is arranged on pedicle screw 1 stern notch 14 cell walls, by screw rod 3 upper nut 32 pedicle screw 1 is completely fixed with sleeve 2 again and is connected; The pedicle screw 1 that fixes is inserted guide pin 8 with sleeve 2, utilize the hexagonal endoporus of sleeve 2 that pedicle screw 1 is screwed into the vertebra internal fixation, remove guide pin 8, this utility model uses the implantation of the auxiliary pedicle screw of guide pin can reduce the probability that pedicle screw is trained off greatly; Implant another pedicle screw with said method; At this moment pedicle screw has been implanted in subcutaneous, use traditional pedicle screw at this moment the doctor just have to cut two skins between the pedicle screw to implant connecting rod, and sleeve 2 belows of a kind of spinal column internal fixation device that this utility model provides offer and pedicle screw stern notch 12 corresponding U-lags 23, at this moment U-lag 23 also is exposed to the skin off-balancesheet, and the doctor is implantable connecting rod 9 with regard to need not to cut two skins between the pedicle screw more like this; At the pedicle screw 1 other baffle 7 of putting into, then connecting rod 9 is penetrated the stern notch 12 of pedicle screw by U-lag 23 from the side and until the stern notch 12 of another pedicle screw, owing to be the length that can control connection bar 9 stretches at subcutaneous operation protection plate 7; Remove baffle 8, dilator 5 is inserted in sleeve 2, utilize dilator 5 distraction pedicle screws 1 to make the affected part vertebra, then lock screw 4 is screwed into the stern notch 12 internal fixation connecting rods 9 of pedicle screw by sleeve 2 to the position that is fit to; Then sleeve 2 is removed from pedicle screw 1, sewed up pedicle screw and implant except that skin.The inner fixing device perspective view of Figure 15 for performing the operation after finishing.
Describe in further detail with 2 pairs of this utility model of the specific embodiment below in conjunction with accompanying drawing 2-7, accompanying drawing 9-12, accompanying drawing 13, accompanying drawing 15:
As shown in figure 13, a kind of internal fixation of spine device, comprise pedicle screw 1, be vertically fixed on the connecting rod 9 in the pedicle screw stern notch 12 and be used to compress the lock screw 4 of connecting rod, be provided with the female thread 15 that matches with lock screw 4 in the described stern notch 12, the upper surface of stern notch cell wall 14 is provided with 6 vertical threaded bore 13.
The sleeve 2 and the screw rod 3 that is used for fixing pedicle screw 1 and sleeve 2 that comprise band hexagonal endoporus as the specific purpose tool of this internal fixation of spine device, the lower surface of sleeve 2 is provided with 6 and the corresponding through hole 24 in screw 13 positions, screw 13 is fixedlyed connected pedicle screw 1 with nut 32 by the screw rod 3 of double headed roller screw thread 33 with through hole 24 with sleeve 2, described sleeve 2 bottoms also are provided with the U-lag 23 that cooperates with pedicle screw stern notch 12.
The using method of a kind of internal fixation of spine device that this utility model provides:
Before the operation, take X-ray according to patient's affected part situation.During operation, cutting needs to implant pedicle screw position skin.At first select correct position and angle to open the hole in advance with regular tap; Screw rod 3 is inserted in the through hole 24 on sleeves 2 barrels, then screw rod 3 is screwed in the screw 13 that is arranged on pedicle screw stern notch 12 cell walls 14, by screw rod 3 upper nut 32 pedicle screw 1 is completely fixed with sleeve 2 again and is connected; Utilize the hexagonal endoporus of sleeve 2 that pedicle screw 1 is screwed into the vertebra internal fixation; Implant another pedicle screw with said method; At this moment pedicle screw has been implanted in subcutaneous, use traditional pedicle screw at this moment the doctor just have to cut two skins between the pedicle screw to implant connecting rod, and sleeve 2 belows of a kind of spinal column internal fixation device that this utility model provides offer and pedicle screw stern notch 12 corresponding U-lags 23, at this moment U-lag 23 also is exposed to the skin off-balancesheet, and the doctor is implantable connecting rod 9 with regard to need not to cut two skins between the pedicle screw more like this; Connecting rod 9 penetrated the stern notch 12 of pedicle screw by U-lag 23 from the side and until the stern notch 12 of another pedicle screw; Utilize general surgery spanner distraction pedicle screw 1 to make the affected part vertebra, lock screw 4 is screwed into the stern notch 12 internal fixation connecting rods 9 of pedicle screw by sleeve 2 to the position that is fit to; Then sleeve 2 is removed from pedicle screw 1, sewed up pedicle screw and implant except that skin.The inner fixing device perspective view of Figure 15 for performing the operation after finishing.
Describe in further detail below in conjunction with accompanying drawing 2-7, accompanying drawing 9-12, accompanying drawing 14, Figure 15 and 3 pairs of this utility model of the specific embodiment:
As shown in figure 14, a kind of internal fixation of spine device, comprise the pedicle screw 1 that is provided with axis through bore 16, be vertically fixed on the connecting rod 9 in the pedicle screw stern notch 12 and be used to compress the lock screw 4 of connecting rod, be provided with the female thread 15 that matches with lock screw 4 in the described stern notch 12, the upper surface of stern notch cell wall 14 is provided with 6 vertical threaded bore 13.
Specific purpose tool as this internal fixation of spine device comprises the sleeve 2 of being with the hexagonal endoporus and the screw rod 3 that is used for fixing pedicle screw 1 and sleeve 2, also is provided with ring-shaped lug 22 on described sleeve pipe 2 outer tube walls.The lower surface of sleeve 2 is provided with 6 and the corresponding through hole 24 in screw 13 positions, screw 13 is fixedlyed connected pedicle screw 1 with nut 32 by the screw rod 3 of double headed roller screw thread 33 with through hole 24 with sleeve 2, described sleeve 2 bottoms also are provided with the U-lag 23 that cooperates with pedicle screw stern notch 12.
Described sleeve 2 also is equipped with dilator 5, and its two ends are respectively equipped with upper and lower two annular collars, and last annular collar 54 is connected by rod member 56 with following annular collar 55, and the rod member junction of two ends annular collar is provided with corrugated tubing 53.
Described pedicle screw 1 also is equipped with the baffle 7 of circular arc.
The special-purpose boring bar tool of a kind of internal fixation of spine device of the present utility model is the screw tap 6 of a band through hole 62.
The using method of a kind of internal fixation of spine device that this utility model provides:
Before the operation, take X-ray according to patient's affected part situation.During operation, cutting needs to implant pedicle screw position skin.At first select correct position and angle to squeeze into location guide pin 8, the diameter of this location guide pin 8 is slightly less than the through-hole diameter on pedicle screw 1 and the screw tap 6, and then screw tap 6 is inserted in guide pin 8 opens the hole in advance, takes out screw tap 6 then; Screw rod 3 is inserted in the through hole 24 on the sleeve walls, then screw rod 3 is screwed in the screw 13 that is arranged on pedicle screw 1 stern notch 14 cell walls, by screw rod 3 upper nut 32 pedicle screw 1 is completely fixed with sleeve 2 again and is connected; The pedicle screw 1 that fixes is inserted guide pin 8 with sleeve 2, utilize the hexagonal endoporus of sleeve 2 that pedicle screw 1 is screwed into the vertebra internal fixation, remove guide pin 8, this utility model uses the implantation of the auxiliary pedicle screw of guide pin can reduce the probability that pedicle screw is trained off greatly; Implant another pedicle screw with said method; At this moment pedicle screw has been implanted in subcutaneous, use traditional pedicle screw at this moment the doctor just have to cut two skins between the pedicle screw to implant connecting rod, and sleeve 2 belows of a kind of spinal column internal fixation device that this utility model provides offer and pedicle screw stern notch 12 corresponding U-lags 23, at this moment U-lag 23 also is exposed to the skin off-balancesheet, and the doctor is implantable connecting rod 9 with regard to need not to cut two skins between the pedicle screw more like this; At the pedicle screw 1 other baffle 7 of putting into, then connecting rod 9 is penetrated the stern notch 12 of pedicle screw by U-lag 23 from the side and until the stern notch 12 of another pedicle screw, owing to be the length that can control connection bar 9 stretches at subcutaneous operation protection plate 7; Remove baffle 8, dilator 5 is inserted in sleeve 2, utilize dilator 5 distraction pedicle screws 1 to make the affected part vertebra, then lock screw 4 is screwed into the stern notch 12 internal fixation connecting rods 9 of pedicle screw by sleeve 2 to the position that is fit to; Then sleeve 2 is removed from pedicle screw 1, sewed up pedicle screw and implant except that skin.The inner fixing device perspective view of Figure 15 for performing the operation after finishing.
Claims (7)
1. internal fixation of spine device, comprise pedicle screw (1), be vertically fixed on the connecting rod (9) in the pedicle screw stern notch (12) and be used to compress the locking member (4) of connecting rod, it is characterized in that being provided with the female thread (15) that matches with locking member in the described stern notch (12), the upper surface of stern notch cell wall (14) is provided with several vertical threaded bore (13).
2. a kind of internal fixation of spine device as claimed in claim 1 is characterized in that described pedicle screw (1) is provided with axis through bore (16).
3. the specific purpose tool of an internal fixation of spine device as claimed in claim 1 or 2, it is characterized in that comprising the sleeve (2) of band hexagonal endoporus and being used for fixing pedicle screw (1) and the screw rod (3) of sleeve (2), the lower surface of sleeve (2) is provided with several and the corresponding through hole in screw (13) position (24), and described sleeve (2) bottom also is provided with the U-lag (23) that cooperates with pedicle screw stern notch (12).
4. the specific purpose tool of a kind of internal fixation of spine device as claimed in claim 3, it is characterized in that described sleeve (2) also is equipped with dilator (5), described dilator (5) two ends are provided with annular collar (52), annular collar (52) internal diameter and sleeve (2) diameter are adaptive, and the annular collar at two ends (52) connects by corrugated tubing (53).
5. the specific purpose tool of a kind of internal fixation of spine device as claimed in claim 4 is characterized in that described dilator (5) two ends are respectively equipped with upper and lower two annular collars, and last annular collar (54) is connected by rod member (56) with following annular collar (55).
6. the specific purpose tool of a kind of internal fixation of spine device as claimed in claim 4 is characterized in that also being provided with ring-shaped lug (22) on described sleeve pipe (2) outer tube wall.
7. the specific purpose tool of a kind of internal fixation of spine device as claimed in claim 3 is characterized in that described pedicle screw (1) also is equipped with the baffle (7) of circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101178 CN2904965Y (en) | 2006-02-24 | 2006-02-24 | A spine internal fixation device and tool dedicated therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620101178 CN2904965Y (en) | 2006-02-24 | 2006-02-24 | A spine internal fixation device and tool dedicated therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904965Y true CN2904965Y (en) | 2007-05-30 |
Family
ID=38113591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620101178 Expired - Lifetime CN2904965Y (en) | 2006-02-24 | 2006-02-24 | A spine internal fixation device and tool dedicated therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904965Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319111A (en) * | 2011-07-29 | 2012-01-18 | 王春 | Spreader for pedicle screw systems |
| CN103096820A (en) * | 2010-07-19 | 2013-05-08 | 华沙整形外科股份有限公司 | Extensions for spinal anchors |
| CN103717157A (en) * | 2011-06-23 | 2014-04-09 | 斯潘威公司 | Surgical device for correcting deformations in the spinal column |
| CN105361934A (en) * | 2015-12-08 | 2016-03-02 | 邵阳市中医医院 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
| CN108324335A (en) * | 2017-12-29 | 2018-07-27 | 深圳市斯玛仪器有限公司 | A kind of pedicle of vertebral arch fixed spinal operation lane device and its application method |
-
2006
- 2006-02-24 CN CN 200620101178 patent/CN2904965Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096820A (en) * | 2010-07-19 | 2013-05-08 | 华沙整形外科股份有限公司 | Extensions for spinal anchors |
| CN103096820B (en) * | 2010-07-19 | 2016-08-03 | 华沙整形外科股份有限公司 | Extensions for spinal anchors |
| CN103717157A (en) * | 2011-06-23 | 2014-04-09 | 斯潘威公司 | Surgical device for correcting deformations in the spinal column |
| CN102319111A (en) * | 2011-07-29 | 2012-01-18 | 王春 | Spreader for pedicle screw systems |
| CN105361934A (en) * | 2015-12-08 | 2016-03-02 | 邵阳市中医医院 | Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device |
| CN108324335A (en) * | 2017-12-29 | 2018-07-27 | 深圳市斯玛仪器有限公司 | A kind of pedicle of vertebral arch fixed spinal operation lane device and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070530 |
|
| EXPY | Termination of patent right or utility model |