CN206434408U - Conical points sharp tackle head extractor for thread-stripping screws with press fastening device - Google Patents
Conical points sharp tackle head extractor for thread-stripping screws with press fastening device Download PDFInfo
- Publication number
- CN206434408U CN206434408U CN201621060295.2U CN201621060295U CN206434408U CN 206434408 U CN206434408 U CN 206434408U CN 201621060295 U CN201621060295 U CN 201621060295U CN 206434408 U CN206434408 U CN 206434408U
- Authority
- CN
- China
- Prior art keywords
- thread
- shaped
- conical points
- fastening device
- shaped card
- 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- Withdrawn - After Issue
Links
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model is related to a kind of conical points sharp tackle head extractor for thread-stripping screws with press fastening device, belongs to orthopedic medical device technical field.It includes T-shaped handle and card pressure folder；The T-shaped handle front end connects and is additionally provided with spherical nut and hex nut on conical points sharp tackle head, T-shaped handle；The card pressure folder upper end is provided with U-shaped card slot, and lower end is connected provided with U-shaped card seat between U-shaped card slot and U-shaped card seat by connecting rod；The U-shaped card slot can block spherical nut, and U-shaped card seat is blocked below slipped screws groove.The utility model is simple in construction, have the advantages that success rate is high, be not easy stripped thread, it is easy to operate, remained without destruction of bone, without metal fillings, maximum feature be press fastening device need not with external force with regard to conical points sharp tackle head can be kept tightly to be stuck in stripped thread groove, take out when be not easy to skid, extraction efficiency is high.
Description
Technical field
The utility model is related to a kind of conical points sharp tackle head extractor for thread-stripping screws with press fastening device, belongs to orthopaedics doctor
Treat technique with the apparatus field.
Background technology
Bone plate and screw fix fracture and have become methods of internal fixation conventional now, and at present, interior hexagon screw is
The most frequently used screw of orthopaedics.Need to take out internal synthetism plate bolt after union.Because screw bears larger answer in vivo
Power causes screw frictional resistance to greatly increase, and screws out screw and causes high effort for and often occur that screw is screwed sliding situation, particularly
, with lock screw extensive use, there is thin spiral shell recent years between the nail of such bone plate and its supporting lock screw nail tail
Line is locked, after union in suffering limb weight-bearing activities, is more easily caused on screw nail tail and bone plate because screw meets with stresses
Screw thread between lock hole is deformed upon, and makes the back-out of screw more difficult, and the probability for occurring twisting sliding screw when strength rotates is big
Increase greatly.
Screw stripped thread can substantially increase taking-up difficulty, extend operating time, and increase infection probability occurs taking out failure even
Cause the severe complications such as refracture.The existing reverse spiral shell tap tapping of taper and quincunx screwdriver etc. instrument can not
Itself keep screwdriver tightly to block to be pressed in stripped thread in hexagonal groove, it is necessary to which external force, which could keep screwdriver tightly to block, is pressed in stripped thread
In interior hexagonal groove.User should firmly rotate when taking out, and firmly hold down screwdriver again and tightly block and be pressed in stripped thread
In hexagonal groove, relatively more painstaking, the still easy stripped thread when resistance is larger, mortality is higher.
The content of the invention
The purpose of this utility model is to overcome above-mentioned weak point that there is provided a kind of conical points sharp tackle with press fastening device
Head extractor for thread-stripping screws.
The technical scheme provided according to the utility model, the conical points sharp tackle head slipped screws with press fastening device take out
Device, including T-shaped handle and card pressure folder；The T-shaped handle front end connects and is additionally provided with spherical nut and six on conical points sharp tackle head, T-shaped handle
Angle nut；The card pressure folder upper end is provided with U-shaped card slot, and lower end passes through connecting rod provided with U-shaped card seat between U-shaped card slot and U-shaped card seat
Connection；The U-shaped card slot can block spherical nut, and U-shaped card seat is located at below conical points sharp tackle head, blocks slipped screws groove
Lower section.
The shank of T-shaped handle is provided with screw thread, and spherical nut is arranged at threaded upper end, coordinates between screw thread and hex nut.
Box thread is provided with inside the hex nut, screw thread is male thread, both work in coordination connection.
The width of the U-shaped card slot is identical with the width of the longitudinal handle of T-shaped handle.
The first end of conical points sharp tackle matches each other with T-shaped handle front end to be connected, and other end cutter head is in hexagonal pyramidal.It is described
Conical points sharp tackle head hexagonal pyramidal cutter head and the interior hex slot of slipped screws front end match each other.
The beneficial effects of the utility model：The utility model is simple in construction, with success rate height, is not easy stripped thread, operation
It is easy, without destruction of bone, remained without metal fillings the advantages of, maximum feature is that press fastening device can make the extractor need not be with outer
Power just can keep conical points sharp tackle head to be tightly stuck in stripped thread groove, be not easy to skid during taking-up, extraction efficiency is high.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model card press-clamping structure left view.
Description of reference numerals：1st, T-shaped handle；2nd, card pressure folder；3rd, conical points sharp tackle head；4th, screw thread；5th, spherical nut；6th, hexagonal
Nut；7th, U-shaped card slot；8th, U-shaped card seat；9th, slipped screws.
Embodiment
As shown in Figure 1-2：Conical points sharp tackle head extractor for thread-stripping screws with press fastening device, including T-shaped handle 1 and card are pressed
Folder 2.
The T-shaped handle 1 includes the shank of horizontal hand holding handle and longitudinal direction, and both are into T-shaped connection；The front end of T-shaped handle 1 is connected
Spherical nut 5 and hex nut 6 are additionally provided with conical points sharp tackle first 3, T-shaped handle 1；The shank of the longitudinal direction of T-shaped handle 1 is provided with screw thread 4,
Spherical nut 5 is arranged at the upper end of screw thread 4, and the lower end of spherical nut 5 is placed exactly in the top of screw thread 4, fixed by screw thread 4 and T-shaped
Relative position between handle 1；Hex nut 6 is fixed on screw thread 4, and wherein hex nut 6 is box thread, and screw thread 4 is male thread,
Hex nut 6 can be moved up and down along screw thread 4.
The center of spherical nut 5 is provided with through hole, and the size and the shank diameter of the longitudinal direction of T-shaped handle 1 of through hole match each other, will be spherical
Nut 5 is placed in longitudinal shank, spherical nut 5 is carried out by the top of screw thread 4 spacing.The effect of spherical nut 5 is to reduce
Card pressure folder clamps frictional resistance when rotating with T-shaped arbor.
2 upper ends of the card pressure folder are provided with U-shaped card slot 7, and lower end leads to provided with U-shaped card seat 8 between U-shaped card slot 7 and U-shaped card seat 8
Cross connecting rod connection；The U-shaped card slot 7 matches with the shank diameter of the longitudinal direction of T-shaped handle 1, during clamping so that U-shaped card slot 7 can be right
Spherical nut 5 is positioned.The U-shaped card seat 8 of the lower section of card pressure folder 2 is blocked below the groove of slipped screws 9.
Described one end of sharp cutter head 3 matches each other with the front end of T-shaped handle 1 and is connected, and other end cutter head is in hexagonal pyramidal.The point
The first 3 hexagonal pyramidal cutter head of sharp tackle and the interior hex slot of the front end of slipped screws 9 match each other.The sharp cutter head 3 is according to stripped thread spiral shell
The size of nail 9 includes a series of different specifications.
During utility model works, the suitable sharp cutter head of size selection of the slipped screws 9 taken out as needed first
3, then sharp cutter head 3 is socketed on to longitudinal shank front end of T-shaped handle 1, now longitudinal shank is provided with spherical nut 5 and hexagonal
Nut 6, by hex nut 6 along screwing some, then the hexagonal pyramidal cutter head of first 3 front end of conical points sharp tackle is aligned and slided
The interior hex slot of silk screw 9 upper end, slightly firmly axially beats the top of T-shaped handle 1, conical points sharp tackle first 3 is stuck in interior hexagonal stripped thread
In groove.
Card pressure folder 2 is taken out, the lower section of slipped screws 9 for card being pressed the alignment of U-shaped card seat 8 for pressing from both sides 2 lower ends to be removed, and along T
The shank of shape handle longitudinal direction is caught in, and then presses the U-shaped card slot 7 for pressing from both sides 2 upper ends to be directed at the top of spherical nut 5 on card, and is caught in, now, U
Type neck 7 is stuck in the top of spherical nut 5, and hex nut 6 is rotated along screw thread 4 so that spherical nut 5 blocks mutually with U-shaped card slot 7
Tightly, now, press fastening device itself formation tensioning state, it is not necessary to external force conical points sharp tackle first 3 can be kept tightly to be stuck in cunning
In silk groove.After hexagonal pyramidal cutter head, which keeps tightly blocking, to be pressed in the interior hex slot of slipped screws, T-shaped handle 1 is not just allowed when turning
Easily skid.
Finally, slipped screws 9 are driven to screw out by rotating T-shaped handle 1.
Claims (6)
1. the conical points sharp tackle head extractor for thread-stripping screws with press fastening device, it is characterized in that：Including T-shaped handle（1）Press and press from both sides with card
（2）；The T-shaped handle（1）Front end connects conical points sharp tackle head（3）, T-shaped handle（1）It is provided with spherical nut（5）And hex nut
（6）；The card pressure folder（2）Upper end is provided with U-shaped card slot（7）, lower end is provided with U-shaped card seat（8）, U-shaped card slot（7）With U-shaped card seat（8）
Between connected by connecting rod；The U-shaped card slot（7）Spherical nut can be blocked（5）, U-shaped card seat（8）Positioned at conical points sharp tackle head
（3）Lower section.
2. the conical points sharp tackle head extractor for thread-stripping screws of press fastening device is carried as claimed in claim 1, it is characterized in that：T-shaped handle
（1）Shank be provided with screw thread（4）, spherical nut（5）It is arranged at screw thread（4）Upper end, hex nut（6）With screw thread（4）Between
It is connected.
3. the conical points sharp tackle head extractor for thread-stripping screws of press fastening device is carried as claimed in claim 1, it is characterized in that：The U
Type neck（7）Width and T-shaped handle（1）The width of longitudinal handle is identical.
4. the conical points sharp tackle head extractor for thread-stripping screws of press fastening device is carried as claimed in claim 1, it is characterized in that：The cone
The sharp cutter head of shape（3）One end and T-shaped handle（1）Front end matches each other connection, and other end cutter head is in hexagonal pyramidal.
5. the conical points sharp tackle head extractor for thread-stripping screws of press fastening device is carried as claimed in claim 4, it is characterized in that：The cone
The sharp cutter head of shape（3）The hexagonal pyramidal cutter head of front end matches each other with the interior hex slot of slipped screws front end.
6. the conical points sharp tackle head extractor for thread-stripping screws of press fastening device is carried as claimed in claim 1, it is characterized in that：Described six
Angle nut（6）Inwall is provided with box thread, screw thread（4）For male thread, both work in coordination connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060295.2U CN206434408U (en) | 2016-09-18 | 2016-09-18 | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060295.2U CN206434408U (en) | 2016-09-18 | 2016-09-18 | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206434408U true CN206434408U (en) | 2017-08-25 |
Family
ID=59645446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621060295.2U Withdrawn - After Issue CN206434408U (en) | 2016-09-18 | 2016-09-18 | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206434408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264704A (en) * | 2016-09-18 | 2017-01-04 | 无锡市第九人民医院 | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device |
-
2016
- 2016-09-18 CN CN201621060295.2U patent/CN206434408U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264704A (en) * | 2016-09-18 | 2017-01-04 | 无锡市第九人民医院 | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device |
| CN106264704B (en) * | 2016-09-18 | 2019-01-08 | 无锡市第九人民医院 | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102596073B (en) | Variable angle locking buttress pins | |
| CN203777039U (en) | Pressing-type combined extractor used for slipped screw | |
| CN106264704B (en) | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device | |
| CN206434408U (en) | Conical points sharp tackle head extractor for thread-stripping screws with press fastening device | |
| CN203815572U (en) | Orthopedics screw taking device allowing screws to be taken out easily | |
| CN203291020U (en) | Broken nail taking-out machine | |
| CN205019148U (en) | Bone screw of screw in fast | |
| CN210811475U (en) | Special half-thread hollow screw extracting tool for assisting orthopedics department | |
| CN205795787U (en) | A kind of internal fixation device for department of orthopaedics | |
| CN201617937U (en) | Locking steel plate device for fixing skeleton | |
| CN204765895U (en) | Orthopedics set screw follows closely extractor absolutely | |
| CN203885611U (en) | Simple and convenient broken nail extractor for orthopedics | |
| CN1846643A (en) | Locking bone screw | |
| CN2912548Y (en) | Locked bone fracture screw | |
| CN217014191U (en) | Can prevent smooth silk extractor that drops | |
| CN206825340U (en) | Take out the instrument of disconnected screw | |
| CN204765894U (en) | Smooth silk screw extractor of interior hexagonal of sharp -pointed tool bit of toper | |
| CN204092170U (en) | A kind of Universal pedicle screw extractor | |
| CN210757512U (en) | Device for simply disassembling dart needle head | |
| CN213787736U (en) | Universal half-thread self-tapping screw for orthopedic external fixation and external fixation device | |
| CN205697987U (en) | A kind of medical anti-rotation holds rod device | |
| CN103908327A (en) | Fracture reduction lifting needle | |
| CN214180560U (en) | Long and short nail sleeve pressing rod structure | |
| CN211560312U (en) | Hollow nail | |
| CN203122577U (en) | Bone plate temporary fixing screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20190108 |
|
| AV01 | Patent right actively abandoned |