CN209695367U - Extractor of orthopedic slipped screws - Google Patents
Extractor of orthopedic slipped screws Download PDFInfo
- Publication number
- CN209695367U CN209695367U CN201822061805.3U CN201822061805U CN209695367U CN 209695367 U CN209695367 U CN 209695367U CN 201822061805 U CN201822061805 U CN 201822061805U CN 209695367 U CN209695367 U CN 209695367U
- Authority
- CN
- China
- Prior art keywords
- holding rod
- slide bar
- extractor
- slipped screws
- piece
- 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.)
- Expired - Fee Related
Links
Abstract
Extractor of orthopedic slipped screws, screw will not only be turned by solving when removing screw, it also needs firmly to pin screw, but the screw after stripped thread is difficult the problem of pinning, it includes holding rod, the lower end of the holding rod is removably connected with abutting piece, the abutting on piece, which runs through, is equipped with U-shaped bayonet, slide bar is slidably connected on the holding rod, the lower end of the slide bar is removably connected with hexagonal cap, the utility model is when in use, first the U-shaped bayonet for pushing against piece is covered below the nut of slipped screws, then slide bar is slided, by hexagonal cap sleeve on the nut of slipped screws, the nut of slipped screws is fixed on to push against between piece and hexagonal cap, rotate holding rod, it pushes against piece and hexagonal cap is the mode being detachably connected, it can be adapted with the slipped screws of different model, it is practical.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly, to extractor of orthopedic slipped screws.
Background technique
Stripped thread is in threaded connector, and thread junction causes thread to wear and make due to stress is excessive or other
The case where thread can not be engaged, and threaded connection can not tighten.It is several in this way nothing more than having from physics angle analysis screw " stripped thread "
Kind of reason: first is that overexerting or excessively inclined；Second is that device abrasion is excessive；Third is that quality of materials is too poor.
Orthopaedics often uses screw, and screw is difficult to take out after stripped thread, because not only wanting when removing screw
Turn screw, it is also necessary to screw is firmly pinned, but the screw after stripped thread is difficult to pin, thus it is proposed that being related to orthopedic slipped
Screw extractor is to solve the above problems.
Utility model content
For above situation, to overcome the shortcomings of existing technologies, the utility model provides extractor of orthopedic slipped screws, has
Solving for effect will not only turn screw when removing screw, it is also necessary to firmly pin screw, but the screw after stripped thread is very
The problem of difficulty is pinned.
To achieve the above object, the utility model includes holding rod, and the lower end of the holding rod is removably connected with abutting piece, institute
It states and pushes against on piece through U-shaped bayonet is equipped with, slidably connect slide bar on the holding rod, the lower end of the slide bar is removably connected with
Hexagonal cap is equipped with slide bar hold-down mechanism on the holding rod, and the holding rod is equipped with grip ring close to the position of upper end.
Preferably, the upper end of the holding rod is welded with lateral holding rod, and the both ends of the transverse direction holding rod cover rubber sleeve.
Preferably, the abutting piece includes internal thread connecting cylinder and snap-gauge, and the internal thread connecting cylinder and snap-gauge are integrally formed, and
The upper end of internal thread connecting cylinder and the lower thread of holding rod connect, and the U-shaped bayonet is through setting on snap-gauge.
Preferably, the slide bar hold-down mechanism includes T shape sliding rail and holddown spring, and the T shape sliding rail and holding rod, which are fixed, to be connected
It connects, the side of the slide bar is integrally formed with T-shaped slider, and the T-shaped slider sliding is fastened in T shape sliding rail, the slide bar and T
The upper end of shape sliding rail is fixedly connected by holddown spring.
Preferably, the slide bar hold-down mechanism can also include guiding pillar and clamp nut, and the guiding pillar is logical
The side that link block is fixed on holding rod is crossed, the slide bar is tubular structure, and sliding bar covers on guiding pillar, described to lead
It is equipped with external screw thread to the upper end of pillar, the clamp nut is connect with the threaded upper ends of guiding pillar.
Preferably, the holding rod is equipped with the groove of annular close to the side insertion of upper end, and the grip ring may be rotatably mounted at
In groove.
1, it when the utility model is used, first covering the U-shaped bayonet for pushing against piece below the nut of slipped screws, then slides
Moving slide-bar is fixed on the nut of slipped screws and pushes against piece and hexagonal cap by hexagonal cap sleeve on the nut of slipped screws
Between, holding rod is rotated, piece is pushed against and hexagonal cap is the mode being detachably connected, it can be with the stripped thread of different model
Screw is adapted, practical；
2, the utility model can hold grip ring when turning slipped screws by the setting of grip ring with a hand, separately
One hand turns holding rod, and when facilitating operation, and grasp grip ring, holding rod is swung left and right when can preventing firmly.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is the utility model another kind structural schematic diagram.
In figure: 1 holding rod, 2 push against piece, 3 U-shaped bayonets, 4 slide bars, 5 hexagonal caps, 6 grip rings, 7 lateral holding rods, 8
Rubber sleeve, 9 internal thread connecting cylinders, 10 snap-gauges, 11 T shape sliding rails, 12 holddown springs, 13 guiding pillars, 14 clamping nuts.
Specific embodiment
1-2 is described in further details specific embodiment of the present utility model with reference to the accompanying drawing.
It is provided by Fig. 1-2, the utility model includes holding rod 1, and the lower end of holding rod 1, which is removably connected with, pushes against piece 2, pushes against piece
Through U-shaped bayonet 3 is equipped on 2, slide bar 4 is slidably connected on holding rod 1, the lower end of slide bar 4 is removably connected with hexagonal cap 5,
Slide bar hold-down mechanism is installed on holding rod 1, holding rod 1 is equipped with grip ring 6 close to the position of upper end, the utility model use when
It waits, the hexagonal cap 5 of corresponding model can be chosen according to the screw of stripped thread and pushes against piece 2, when removing slipped screws,
First slide bar 4 is then slided, by 5 sets of hexagonal cap in stripped thread below the nut of slipped screws for 3 sets of U-shaped bayonet of abutting piece 2
On the nut of screw, it is fixed on the nut of slipped screws and pushes against between piece 2 and hexagonal cap 5, rotate holding rod 1, push against
Piece 2 and hexagonal cap 5 are the mode being detachably connected, and can be adapted with the slipped screws of different model, practical.
The upper end of holding rod 1 is welded with lateral holding rod 7, and the both ends of lateral holding rod 7 cover rubber sleeve 8.
Pushing against piece 2 includes internal thread connecting cylinder 9 and snap-gauge 10, and internal thread connecting cylinder 9 and snap-gauge 10 are integrally formed, and internal thread connects
The upper end of cylinder 9 is connect with the lower thread of holding rod 1, and U-shaped bayonet 3 is through setting on snap-gauge 10.
Slide bar hold-down mechanism includes T shape sliding rail 11 and holddown spring 12, and T shape sliding rail 11 is fixedly connected with holding rod 1, slide bar 4
Side integrally formed with T-shaped slider, T-shaped slider sliding is fastened in T shape sliding rail 11, and the upper end of slide bar 4 and T shape sliding rail 11 is logical
It crosses holddown spring 12 to be fixedly connected, holddown spring 12 can compress slide bar 4, and hexagonal cap 5 is made tightly to cover the cap in slipped screws
On son.
Slide bar hold-down mechanism can also include guiding pillar 13 and clamp nut 14, and guiding pillar 13 is solid by link block
It is scheduled on the side of holding rod 1, slide bar 4 is tubular structure, and 4 sliding sleeve of slide bar is oriented to the upper of pillar 13 on guiding pillar 13
End is equipped with external screw thread, and clamp nut 14 is connect with the threaded upper ends of guiding pillar 13.
Holding rod 1 is equipped with the groove of annular close to the side insertion of upper end, and grip ring 6 may be rotatably mounted in groove, by holding
The setting of ring 6 can hold grip ring 6 when turning slipped screws with a hand, another hand turns holding rod 1, facilitates behaviour
When making, and grasp grip ring 6, holding rod 1 is swung left and right when can preventing firmly.
When the utility model is used, first then 3 sets of U-shaped bayonet of abutting piece 2 are slided below the nut of slipped screws
Moving slide-bar 4 is fixed on the nut of slipped screws and pushes against piece 2 and hexagonal nuts by 5 sets of hexagonal cap on the nut of slipped screws
Between son 5, holding rod 1 is rotated, piece 2 is pushed against and hexagonal cap 5 is the mode being detachably connected, it can be with different model
Slipped screws be adapted, it is practical, by the setting of grip ring 6, when turning slipped screws, can be held with a hand
Grip ring 6, another hand turn holding rod 1, when facilitating operation, and grasp grip ring 6, holding rod when can preventing firmly
1 is swung left and right.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. extractor of orthopedic slipped screws, including holding rod (1), which is characterized in that the lower end of the holding rod (1) is removably connected with
It pushes against piece (2), through U-shaped bayonet (3) are equipped on the abutting piece (2), slidably connects slide bar (4), institute on the holding rod (1)
The lower end for stating slide bar (4) is removably connected with hexagonal cap (5), is equipped with slide bar hold-down mechanism on the holding rod (1), described to hold
Bar (1) is equipped with grip ring (6) close to the position of upper end.
2. extractor of orthopedic slipped screws according to claim 1, which is characterized in that weld the upper end of the holding rod (1)
It is fixed with lateral holding rod (7), the both ends of the transverse direction holding rod (7) cover rubber sleeve (8).
3. extractor of orthopedic slipped screws according to claim 1, which is characterized in that the abutting piece (2) includes internal thread
Connecting cylinder (9) and snap-gauge (10), the internal thread connecting cylinder (9) and snap-gauge (10) are integrally formed, and the upper end of internal thread connecting cylinder (9)
It is connect with the lower thread of holding rod (1), the U-shaped bayonet (3) is through setting on snap-gauge (10).
4. extractor of orthopedic slipped screws according to claim 1, which is characterized in that the slide bar hold-down mechanism includes T
Shape sliding rail (11) and holddown spring (12), the T shape sliding rail (11) are fixedly connected with holding rod (1), the side one of the slide bar (4)
Body formed to have T-shaped slider, the T-shaped slider sliding is fastened in T shape sliding rail (11), the slide bar (4) and T shape sliding rail (11)
Upper end is fixedly connected by holddown spring (12).
5. extractor of orthopedic slipped screws according to claim 1, which is characterized in that the slide bar hold-down mechanism can be with
Including guiding pillar (13) and clamp nut (14), guiding pillar (13) is fixed on the side of holding rod (1) by link block
Face, the slide bar (4) are tubular structure, and slide bar (4) sliding sleeve is in guiding pillar (13), guiding pillar (13)
Upper end is equipped with external screw thread, and the clamp nut (14) connect with the threaded upper ends of guiding pillar (13).
6. extractor of orthopedic slipped screws according to claim 1, which is characterized in that the holding rod (1) is close to upper end
Side insertion is equipped with the groove of annular, and the grip ring (6) may be rotatably mounted in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822061805.3U CN209695367U (en) | 2018-12-07 | 2018-12-07 | Extractor of orthopedic slipped screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822061805.3U CN209695367U (en) | 2018-12-07 | 2018-12-07 | Extractor of orthopedic slipped screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209695367U true CN209695367U (en) | 2019-11-29 |
Family
ID=68637475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822061805.3U Expired - Fee Related CN209695367U (en) | 2018-12-07 | 2018-12-07 | Extractor of orthopedic slipped screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209695367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759447A (en) * | 2020-06-01 | 2020-10-13 | 余军阳 | Device and method for taking out broken bone nail |
-
2018
- 2018-12-07 CN CN201822061805.3U patent/CN209695367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759447A (en) * | 2020-06-01 | 2020-10-13 | 余军阳 | Device and method for taking out broken bone nail |
| CN111759447B (en) * | 2020-06-01 | 2021-10-01 | 西安市红会医院 | Device for taking out broken bone nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20201207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |