CN203953797U - A kind of for taking out the sliding nail extractor of fixture after bone surgery - Google Patents
A kind of for taking out the sliding nail extractor of fixture after bone surgery Download PDFInfo
- Publication number
- CN203953797U CN203953797U CN201420433086.2U CN201420433086U CN203953797U CN 203953797 U CN203953797 U CN 203953797U CN 201420433086 U CN201420433086 U CN 201420433086U CN 203953797 U CN203953797 U CN 203953797U
- Authority
- CN
- China
- Prior art keywords
- ailhead
- jump bit
- securing member
- spacing block
- taking out
- 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
This utility model relates to a kind of for taking out the sliding nail extractor of fixture after bone surgery, and it comprises ailhead securing member, center-pole, drive socket, jump bit and hands handle; Wherein, the top of described ailhead securing member is provided with a pair of the first spacing block set; Described center-pole and transmission sleeve are arranged between ailhead securing member and jump bit; Described drive socket is set in center-pole outside, and the first spacing block set is stated in its one end asylum, and the other end is provided with a pair of the second spacing block set; Described the second spacing block set inserts jump bit; Described handle is laterally arranged on jump bit.This utility model is a kind of for taking out the extractor of the internal fixation nail that skids after bone surgery, it is simple in structure, be easier to operation, take out efficiency higher, and then reduce intraoperative blood loss, shorten anesthesia duration, reduce surgery cost, meanwhile, in its use procedure, few metal fragment that produces, has avoided operation residual.
Description
[technical field]
This utility model relates to a kind of bone surgery set, is specifically related to a kind ofly for taking out the sliding nail extractor of fixture after bone surgery, belongs to technical field of medical instruments.
[background technology]
After orthopaedics internal fixation operation, inside-fixture needs to take out conventionally; steel plate system is determined in existing conventional titanium lockmaking often can there is " cold welding " phenomenon between pinning head and titanium plate locking nail hole; be that ailhead and steel plate body formation are combined closely; and then the phenomenon of skidding between hexagonal screwdriver and ailhead in occurring in interior fixing taking-up process; cause pinning to take out, operative failure.
For this situation, conventional solution is to use wolfram steel to bore with reverse extractor to take out now.Use wolfram steel to bore and expand ailhead hole, then use the reverse thread of reverse extractor and ailhead hole inwall combine closely and screw is taken out of.The method often can cause a large amount of metal fragments to remain in wound, need to again clear up wound surface, increases patient's amount of bleeding and operating time.And extractor Chang Yinyu ailhead place cannot combine closely and lose efficacy, the reverse extractor of Reusability lost efficacy and can cause ailhead hole further to expand, and more difficult taking-up.
Therefore,, for solving the problems of the technologies described above, necessaryly provide a kind of for taking out the sliding nail extractor of fixture after bone surgery, to overcome described defect of the prior art.
[utility model content]
For addressing the above problem, it is a kind of simple in structure, easy to operate that the purpose of this utility model is to provide, take out efficiency high and can reduce blood loss volume during the operation for taking out the sliding nail extractor of fixture after bone surgery.
For achieving the above object, the technical scheme that this utility model is taked is: a kind of for taking out the sliding nail extractor of fixture after bone surgery, it comprises ailhead securing member, center-pole, drive socket, jump bit and hands handle; Wherein, the top of described ailhead securing member is provided with a pair of the first spacing block set; Described center-pole and transmission sleeve are arranged between ailhead securing member and jump bit; Described drive socket is set in center-pole outside, and the first spacing block set is stated in its one end asylum, and the other end is provided with a pair of the second spacing block set; Described the second spacing block set inserts jump bit; Described handle is laterally arranged on jump bit.
Of the present utility modelly further be set to for the sliding nail extractor that takes out fixture after bone surgery: in described ailhead securing member, be provided with some anti-skidding double wedges.
Of the present utility modelly further be set to for the sliding nail extractor that takes out fixture after bone surgery: the two ends cross section of described center-pole is regular hexagon, and inserts respectively ailhead securing member and jump bit.
Of the present utility modelly also be set to for the sliding nail extractor that takes out fixture after bone surgery: be provided with a leg-of-mutton stopper slot in described jump bit top; Described handle is provided with the positive stop strip that inserts stopper slot.
Compared with prior art, the utlity model has following beneficial effect: of the present utility model simple in structure for taking out the sliding nail extractor of fixture after bone surgery, be easier to operation, take out efficiency higher, and then reduce intraoperative blood loss, shorten anesthesia duration, reduce surgery cost, meanwhile, in its use procedure, few metal fragment that produces, has avoided operation residual.
[brief description of the drawings]
Fig. 1 is of the present utility model for taking out the using state figure of sliding nail extractor of fixture after bone surgery.
Fig. 2 is of the present utility model for taking out the three-dimensional exploded view of sliding nail extractor of fixture after bone surgery.
Fig. 3 is the structural representation of the ailhead securing member in Fig. 2.
Fig. 4 is the structural representation of the drive socket in Fig. 2.
Fig. 5 is the structural representation of the jump bit in Fig. 2.
[detailed description of the invention]
Refer to Figure of description 1 to shown in accompanying drawing 5, this utility model is a kind of for taking out the sliding nail extractor of fixture after bone surgery, it takes out for sliding nail 9, is made up of several parts such as ailhead securing member 1, center-pole 2, drive socket 3, jump bit 4 and handles 5.
Wherein, the top of described ailhead securing member 1 is provided with a pair of the first spacing block set 6.In described ailhead securing member 1, be provided with some anti-skidding double wedges 8, anti-skidding double wedge 8 produces indentation in sliding nail 9 ailhead outsides in the time moving down, cunning nail 9 ailhead materials are pushed to center simultaneously, sliding nail 9 ailhead inner faces are better contacted with the outer-hexagonal head of center-pole 2, thereby avoid sliding nail 9 to skid.
Described center-pole 2 and drive socket 3 are arranged between ailhead securing member 1 and jump bit 4, and center-pole 2 two ends cross sections are regular hexagon, thereby play accessory drive effect.
Described drive socket 3 is set in center-pole 2 outsides, and the first spacing block set 6 is stated in its one end asylum, and the other end is provided with a pair of the second spacing block set 7.Described the second spacing block set 7 inserts jump bit 4.
Described handle 5 is laterally arranged on jump bit 4.Specifically, be provided with a leg-of-mutton stopper slot 10 in described jump bit 4 tops; Described handle 5 is provided with the positive stop strip 11 that inserts stopper slot 10, thereby by handle 5 and jump bit 4 combinations.
It is of the present utility model as follows for taking out the design principle of sliding nail extractor of fixture after bone surgery: after center-pole 2 is combined in advance with ailhead securing member 1, be placed in the top of sliding nail 9, drive socket 3 is enclosed within on center-pole 2, and the first spacing block set 6 of ailhead securing member 1 is engaged, then by jump bit 4 and drive socket 3 combinations.Use bone hammer to knock jump bit 4, ailhead securing member 1 and the head of sliding nail 9 are combined closely, re-use handle 5, cunning nail 9 is back-outed.
Separately, generally, center-pole 2 and jump bit 4, handle 5 can be used in conjunction with taking out spanner as soket head cap screw.
Above detailed description of the invention is only the preferred embodiment of this creation, not in order to limit this creation, any amendment of making, is equal to replacement, improvement etc., within all should being included in the protection domain of this creation within all spirit in this creation and principle.
Claims (4)
1. for taking out a sliding nail extractor for fixture after bone surgery, it is characterized in that: comprise ailhead securing member, center-pole, drive socket, jump bit and hands handle; Wherein, the top of described ailhead securing member is provided with a pair of the first spacing block set; Described center-pole and transmission sleeve are arranged between ailhead securing member and jump bit; Described drive socket is set in center-pole outside, and the first spacing block set is stated in its one end asylum, and the other end is provided with a pair of the second spacing block set; Described the second spacing block set inserts jump bit; Described handle is laterally arranged on jump bit.
2. as claimed in claim 1 for taking out the sliding nail extractor of fixture after bone surgery, it is characterized in that: in described ailhead securing member, be provided with some anti-skidding double wedges.
3. as claimed in claim 1 for taking out the sliding nail extractor of fixture after bone surgery, it is characterized in that: the two ends cross section of described center-pole is regular hexagon, and insert respectively ailhead securing member and jump bit.
4. as claimed in claim 1 for taking out the sliding nail extractor of fixture after bone surgery, it is characterized in that: be provided with a leg-of-mutton stopper slot in described jump bit top; Described handle is provided with the positive stop strip that inserts stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433086.2U CN203953797U (en) | 2014-08-01 | 2014-08-01 | A kind of for taking out the sliding nail extractor of fixture after bone surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433086.2U CN203953797U (en) | 2014-08-01 | 2014-08-01 | A kind of for taking out the sliding nail extractor of fixture after bone surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203953797U true CN203953797U (en) | 2014-11-26 |
Family
ID=51914442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433086.2U Expired - Fee Related CN203953797U (en) | 2014-08-01 | 2014-08-01 | A kind of for taking out the sliding nail extractor of fixture after bone surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203953797U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549295A (en) * | 2018-05-31 | 2019-12-10 | 广东电网有限责任公司 | Screw extractor |
| CN113796944A (en) * | 2021-09-17 | 2021-12-17 | 黎观保 | Screw extractor for orthopedics |
-
2014
- 2014-08-01 CN CN201420433086.2U patent/CN203953797U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549295A (en) * | 2018-05-31 | 2019-12-10 | 广东电网有限责任公司 | Screw extractor |
| CN113796944A (en) * | 2021-09-17 | 2021-12-17 | 黎观保 | Screw extractor for orthopedics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070123909A1 (en) | Extractor For Broken Bone Screws | |
| WO2012094654A3 (en) | Screw with breakaway and methods of using the same | |
| CN203953797U (en) | A kind of for taking out the sliding nail extractor of fixture after bone surgery | |
| CN103908331B (en) | A kind of Minimally Invasive Surgery pedicle nail | |
| JP2017044344A (en) | Semi-inverse screw thread removal screw | |
| CN204468249U (en) | Without a headly strut hollow screw group | |
| CN205514859U (en) | A device is binded to titanium silk for fracturing end is fixed | |
| CN202920325U (en) | Screw for fixing bones and special spanner thereof | |
| CN202505467U (en) | Self-locking intramedullary needle | |
| CN204446061U (en) | A kind of four paws bone holder directly can placing steel plate | |
| CN202151377U (en) | Novel orthopedic screwdriver | |
| CN202069679U (en) | Bone screw | |
| CN204306894U (en) | One gets orthopaedics internal fixtion slipped screws Speical screwdriver | |
| US20170266786A1 (en) | Dual drive hex socket and method | |
| CN206138197U (en) | Locking screw for orthopedics | |
| CN203291001U (en) | Thread type lag screw system and special composite screw driver thereof | |
| CN206190684U (en) | Back taper head screw | |
| CN201542736U (en) | Screwdriver used for fixing bone screws | |
| CN211560312U (en) | Hollow nail | |
| CN202154742U (en) | Bone-setting nail extractor for orthopedics department | |
| CN202437326U (en) | Self-adaptive bone nail | |
| CN107397584A (en) | Orthopaedics interior hexagonal inner core anti-skid screw and screwdriver | |
| CN206424139U (en) | Screwdriver conversion head and apply its screwdriver device | |
| CN204600583U (en) | A kind of titanium nail | |
| CN201602860U (en) | Broken drill extractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20210801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |