CN202277381U - Screw-placing guider - Google Patents
Screw-placing guider Download PDFInfo
- Publication number
- CN202277381U CN202277381U CN2011203377001U CN201120337700U CN202277381U CN 202277381 U CN202277381 U CN 202277381U CN 2011203377001 U CN2011203377001 U CN 2011203377001U CN 201120337700 U CN201120337700 U CN 201120337700U CN 202277381 U CN202277381 U CN 202277381U
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- CN
- China
- Prior art keywords
- guide rail
- sleeve
- slide block
- putting
- sliding block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a screw-placing guider which comprises a connecting rod, a sleeve sliding block, a first guide rail and a second guide rail, wherein the first guide rail and the second guide rail are positioned in the same flat surface, and the first guide rail is connected with the second guide rail through the connecting rod; and one sides of the first guide rail and the second guide rail are respectively provided with sawteeth; the sleeve sliding block comprises a sliding block, a cover plate and a sleeve, the sliding block is internally provided with a groove, and the first guide rail or the second guide rail passes through the groove; the cover plate is positioned outside of the first guide rail or the second guide rail, and the cover plate is fixedly connected to the sliding block; the sliding block is internally provided with an adjusting knob, and the periphery of the adjusting knob is provided with sawteeth which are matched with the sawteeth of the first guide rail or the second guide rail; the sleeve is internally provided with at least one hollow drum, and the sleeve is fixedly connected to the sliding block; and the first guide rail is provided with at least one sleeve sliding block, and the second guide rail is provided with at least one sleeve sliding block. The sleeve position in the screw-placing guider can be adjusted, and the probability of disposable exact placing screw is improved.
Description
Technical field
This utility model relates to a kind of operating theater instruments, specifically, relates to a kind of nail guider of putting, and is applicable to that the percutaneous neck of femur puts nail.
Background technology
For the treatment of fracture of femoral neck, clinical majority needs the horizontal reset internal fixation.Fixed mode has a lot, and commonly used is to adopt location-plate.Location-plate is provided with a plurality of cannulated sleeves.When needs are located, find out the cannulated sleeve of reasonable distance.Rational position at epidermis goes out, and the cannulated sleeve of second cannulated sleeve through location-plate penetrated in the skin, in skin, penetrates fixtures such as nail through second cannulated sleeve again.Though the location-plate of this structure can be realized localized purpose; But because the cannulated sleeve position on the location-plate is fixed; Can not arbitrarily change,, can not squeeze into the screw of suitable distance at the femoral neck bone place so the distance between the cannulated sleeve on the location-plate does not often meet the requirement of operation.If do not adopt location-plate; Only put when nail at neck of femur with doctor's experience; Often need hole repeatedly, have an X-rayed, just can reach suitable position, too much boring has destroyed the blood supply in the neck of femur; And cause bone loss, reduced the fastness of fracture fixation, also be one of iatrogenic factors of causing nonunion and femur head necrosis.Reach the disposable nail of accurately putting, have only at present through computer navigation is auxiliary and can reach, but the computer navigation auxiliary facilities costs an arm and a leg, a whole set of auxiliary facilities needs nearly 4,000,000 yuan, has only only a few hospital to be equipped with, and can't popularize.
Summary of the invention
Technical problem:This utility model technical problem to be solved is: a kind of nail guider of putting is provided, and this is put nail sleeve position in the guider and can regulate, and has improved the disposable probability of accurately putting nail, simultaneously this structure to put the nail guider with low cost.
Technology contents:For solving the problems of the technologies described above, the technical scheme that this utility model adopts is:
A kind of nail guider of putting; This is put the nail guider and comprises connecting rod, sleeve slide block, first guide rail and second guide rail; Wherein, Described first guide rail and second guide rail are in the same plane, and first guide rail is connected through connecting rod with second guide rail, and a side of first guide rail and second guide rail is respectively equipped with sawtooth; Described sleeve slide block comprises slide block, cover plate and sleeve; Be provided with groove in the slide block, first guide rail or second guide rail pass groove, and cover plate is positioned at first guide rail or second guide rail outside, and cover plate is fixedly connected on the slide block; Be provided with adjusting knob in the slide block, this adjusting knob be circumferentially with the sawtooth that matches with the sawtooth of first guide rail or second guide rail; At least be provided with a hollow cylinder in the sleeve, and sleeve is fixedly connected on slide block; Described first guide rail is provided with at least one sleeve slide block, and described second guide rail is provided with at least one sleeve slide block.
Beneficial effect:Compared with prior art, the technical scheme of this utility model has following beneficial effect:
1. the sleeve position can be regulated.In the prior art, the position of the cannulated sleeve on the location-plate is fixed, when being difficult to guarantee put nail, can both find the cannulated sleeve of suitable distance at every turn.And in the present technique scheme, sleeve is fixed on the slide block, is provided with adjusting knob in the slide block.Through the rotation adjusting knob, sawtooth on the sawtooth of adjusting knob and first guide rail or the sawtooth on second guide rail match, and make slide block on first guide rail or second guide rail, slide.Because sleeve is fixed on the slide block, so the position of sleeve on first guide rail or second guide rail can be regulated.
2. improve the disposable probability of accurately putting nail.In the prior art, only put when nail at neck of femur, often need hole repeatedly, have an X-rayed, just can reach suitable position with doctor's experience.And in the present technique scheme, because the position of sleeve on first guide rail or second guide rail can regulate, so according to the distance of requirements of operation, regulating sleeve makes to keep rational distance between each sleeve, puts the nail operation again.Can improve the disposable probability of accurately putting nail like this.Meanwhile, the disposable nail of accurately putting can also alleviate patient's misery.
3. it is simple, easy for installation, with low cost to put the nail guide structure.In the prior art, the computer navigation auxiliary facilities costs an arm and a leg.And in the present technique scheme, put the nail guider and comprise connecting rod, sleeve slide block, first guide rail and second guide rail.These four parts assemble the purpose that can realize accurately putting nail.Whole the simple in structure, easy for installation, with low cost of nail guider of putting is convenient in operation, be widely used.
Description of drawings
Fig. 1 is the front view of this utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the A portion amplification view of Fig. 1.
Have among the figure: connecting rod 1, sleeve slide block 2, slide block 21, cover plate 22, sleeve 23, first guide rail 3, second guide rail 4, adjusting knob 5, hollow cylinder 6, peephole 7.
The specific embodiment
Below in conjunction with accompanying drawing, the technical scheme of this utility model is carried out detailed explanation.
To shown in Figure 3, a kind of nail guider of putting of this utility model comprises connecting rod 1, sleeve slide block 2, first guide rail 3 and second guide rail 4 like Fig. 1.First guide rail 3 and second guide rail 4 are in the same plane, and first guide rail 3 is connected through connecting rod 1 with second guide rail 4.One side of first guide rail 3 and second guide rail 4 is respectively equipped with sawtooth.Sleeve slide block 2 comprises slide block 21, cover plate 22 and sleeve 23.Be provided with groove in the slide block 21, first guide rail 3 or second guide rail 4 pass groove.Cover plate 22 is positioned at first guide rail 3 or second guide rail, 4 outsides, and cover plate 22 is fixedly connected on the slide block 21.Be provided with adjusting knob 5 in the slide block 21.Adjusting knob 5 be circumferentially with the sawtooth that matches with the sawtooth of first guide rail 3 or second guide rail 4.At least be provided with a hollow cylinder 6 in the sleeve 23, and sleeve 23 is fixedly connected on slide block 21.First guide rail 3 is provided with at least one sleeve slide block 2, the second guide rail 4 and is provided with at least one sleeve slide block 2.
This structure put the nail guider, sleeve 23 is arranged on the slide block 21, is provided with adjusting knob 5 in the slide block 21.Through rotation adjusting knob 5, sawtooth on the sawtooth of adjusting knob 5 and first guide rail 3 or the sawtooth on second guide rail 4 match, and make slide block 21 on first guide rail 3 or second guide rail 4, slide.Like this,, can make two sleeve slide blocks 2 in place, keep the desired distance of operation, put the nail operation through regulating sleeve slide block 2 and the sleeve slide block 2 on second guide rail 4 on first guide rail 3.In operation, utilize other guider, after percutaneous is punctured by a guid needle, on the image after the two dimension perspective, calculate the position of actual fixed screw entry point respectively, according to data, regulate position, angle and the depth of needle of first pin inserting needle.After first pin is fixing, be benchmark, be inserted in adjustable and put the nail guider, penetrate other guid needles easily, from guid needle, penetrate hollow screw with first pin.Guid needle is to penetrate in the hollow cylinder 6 of putting the nail guider.In the present technique scheme, the position of sleeve slide block 2 can be regulated, and has avoided the defective of cannulated sleeve fixed-site on the location-plate.Simultaneously, this put the nail guide structure simple, easy to assembly, with low cost.
Further, described first guide rail 3 is provided with a sleeve slide block 2, and described second guide rail 4 is provided with two sleeve slide blocks 2.The curative effect of generally acknowledging at present is preferably three pieces of hollow forcing screws of percutaneous and fixes.Three pieces of screws be distributed in neck of femur the middle and lower part, be del and be parallel to each other, three pieces of screws launch as far as possible, are close to the inboard cortical bone of neck of femur.Being fixed with like this is beneficial to the displacement again that has increased the stability after the reduction of the fracture, reduced fracture, promotes knitting, reduces disunion and ischemic necrosis of femoral head.Therefore, in putting the nail guider, three sleeve slide blocks 2 are set for good.
Further, described first guide rail 3 and second guide rail, 4 surfaces are respectively equipped with graduation mark, and are provided with peephole 7 in the sleeve slide block 2, and this peephole 7 is corresponding with the graduation mark on first guide rail 3 or second guide rail, 4 surfaces.For strengthening putting the accuracy of nail position, improve disposable chance of success of putting nail, be respectively equipped with graduation mark at first guide rail 3 and second guide rail, 4 surfaces, and be provided with peephole 7 in the sleeve slide block 2.Through peephole 7, operator can directly observe the position of sleeve slide block 2 on first guide rail 3 or second guide rail 4, and the distance between the sleeve slide block 2.As preferred version, peephole 7 is two, and one of them peephole 7 is arranged in slide block 21, and another peephole 7 is arranged in cover plate 22.All can directly observe the position scale of sleeve slide block 2 like this on the two sides of putting the nail guider, observation is convenient.
Further, described first guide rail 3 is vertical each other with second guide rail 4.First guide rail 3 is vertical each other with second guide rail 4, helps the distance between the regulating sleeve slide block 2.In addition, described connecting rod 1 is L-shaped, and an end of connecting rod 1 is connected with an end of first guide rail 3, and the other end of connecting rod 1 is connected with an end of second guide rail 4.Connecting rod 1 is L-shaped, and the handled easily personnel hold and put the nail guider.This connecting rod 1 has served as the effect of handle.
Further, the hollow cylinder 6 of described sleeve 23 is two, and is arranged in parallel.Two hollow cylinders 6 are set in the sleeve 23 in a sleeve slide block 2, can increase the position of adjusting.When required distance can not be satisfied in the position of one of them hollow cylinder 6, can use another hollow cylinder 6.
Further, described sleeve 23 is an integral structure with slide block 21.Sleeve 23 is integral structure with slide block 21, on the one hand, makes things convenient for processing and fabricating sleeve 23 and slide block 21, and on the other hand, the whole fastness of putting the nail guider is higher.
Utility model people uses the nail guider of putting of this structure to implement the fracture of femoral neck closed reduction, percutaneous internal fixation 30 examples, and all by implanted femur cervical region position exactly, one-time success rate reaches 95% to forcing screw.Need not cut affected part, peel off the muscular fascia tissue to appear bore position; Do not need to hole repeatedly, have an X-rayed, can reach and quick and precisely put nail.
Claims (8)
1. put the nail guider for one kind, it is characterized in that, this is put the nail guider and comprises connecting rod (1), sleeve slide block (2), first guide rail (3) and second guide rail (4), wherein,
Described first guide rail (3) and second guide rail (4) are in the same plane, and first guide rail (3) is connected through connecting rod (1) with second guide rail (4), and a side of first guide rail (3) and second guide rail (4) is respectively equipped with sawtooth;
Described sleeve slide block (2) comprises slide block (21), cover plate (22) and sleeve (23); Slide block is provided with groove in (21), and first guide rail (3) or second guide rail (4) pass groove, and cover plate (22) is positioned at first guide rail (3) or second guide rail (4) outside, and cover plate (22) is fixedly connected on the slide block (21); Be provided with adjusting knob (5) in the slide block (21), this adjusting knob (5) be circumferentially with the sawtooth that matches with the sawtooth of first guide rail (3) or second guide rail (4); At least be provided with a hollow cylinder (6) in the sleeve (23), and sleeve (23) is fixedly connected on slide block (21);
Described first guide rail (3) is provided with at least one sleeve slide block (2), and described second guide rail (4) is provided with at least one sleeve slide block (2).
2. according to the described nail guider of putting of claim 1, it is characterized in that described first guide rail (3) is provided with a sleeve slide block (2), described second guide rail (4) is provided with two sleeve slide blocks (2).
3. according to claim 1 or the 2 described nail guiders of putting; It is characterized in that; Described first guide rail (3) and second guide rail (4) surface are respectively equipped with graduation mark; And be provided with peephole (7) in the sleeve slide block (2), this peephole (7) is corresponding with the graduation mark on first guide rail (3) or second guide rail (4) surface.
4. according to the described nail guider of putting of claim 3, it is characterized in that described peephole (7) is two, one of them peephole (7) is arranged in slide block (21), and another peephole (7) is arranged in cover plate (22).
5. according to the described nail guider of putting of claim 1, it is characterized in that described first guide rail (3) is vertical each other with second guide rail (4).
6. according to the described nail guider of putting of claim 1; It is characterized in that; Described connecting rod (1) is L-shaped, and an end of connecting rod (1) is connected with an end of first guide rail (3), and the other end of connecting rod (1) is connected with an end of second guide rail (4).
7. according to the described nail guider of putting of claim 1, it is characterized in that the hollow cylinder (6) of described sleeve (23) is two, and is arranged in parallel.
8. according to the described nail guider of putting of claim 1, it is characterized in that described sleeve (23) and slide block (21) are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203377001U CN202277381U (en) | 2011-09-09 | 2011-09-09 | Screw-placing guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203377001U CN202277381U (en) | 2011-09-09 | 2011-09-09 | Screw-placing guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202277381U true CN202277381U (en) | 2012-06-20 |
Family
ID=46223569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203377001U Withdrawn - After Issue CN202277381U (en) | 2011-09-09 | 2011-09-09 | Screw-placing guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202277381U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349840A (en) * | 2011-09-09 | 2012-02-15 | 东南大学 | Screw placement guider |
| CN104523329A (en) * | 2014-12-23 | 2015-04-22 | 王建明 | Orthopedic surgery positioning device |
-
2011
- 2011-09-09 CN CN2011203377001U patent/CN202277381U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349840A (en) * | 2011-09-09 | 2012-02-15 | 东南大学 | Screw placement guider |
| CN102349840B (en) * | 2011-09-09 | 2013-04-03 | 东南大学 | Screw placement guider |
| CN104523329A (en) * | 2014-12-23 | 2015-04-22 | 王建明 | Orthopedic surgery positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120620 Effective date of abandoning: 20130403 |
|
| RGAV | Abandon patent right to avoid regrant |