CN203647460U - Embedded pressurization type screw extractor - Google Patents
Embedded pressurization type screw extractor Download PDFInfo
- Publication number
- CN203647460U CN203647460U CN201320589939.7U CN201320589939U CN203647460U CN 203647460 U CN203647460 U CN 203647460U CN 201320589939 U CN201320589939 U CN 201320589939U CN 203647460 U CN203647460 U CN 203647460U
- Authority
- CN
- China
- Prior art keywords
- extractor
- embedded
- built
- screw
- loop bar
- 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
Images
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to an embedded pressurization type screw extractor and belongs to the technical field of medical equipment. The extractor is formed by nesting of a metal loop bar and a built-in threaded rod. The extractor is characterized in that a transverse tail fin is arranged at the tail of the metal loop bar, three triangular grooves are formed in the front end, three elastic triangular pyramids are arranged between the front end of the built-in threaded rod and the metal loop bar and embedded in the three triangular grooves, and threads are arranged between the built-in threaded rod and the elastic triangular pyramids. The extractor has the advantages that the problems that slipping exists between a screwdriver and a screw and models of the screwdriver and the screw are unmatched are solved, and the extractor is an all-metal instrument and can perform rapid high-temperature sterilization independently at any time.
Description
Technical field
This utility model relates to a kind of embedded adding pressure type screw extractor, belongs to technical field of medical instruments.
Background technology
Along with the fast development of modern orthopedic medical device, titanium matter screw is widely used in clinical, and titanium matter screw material is softer, and screwdriver and screw slippage very easily occur.Secondly, medical apparatus and instruments producer rises enthusiastically in a large number, and the screw of various different models usually allows clinicist be caught unprepared, and basic hospital screw often occurs and takes out difficulty.Although available industrial drill bit destroys the head of a nail, then drills through screw with trepan, operating time is long, and bone destruction is serious, and secondary fracture easily occurs.
Summary of the invention
The purpose of this utility model is to provide a kind of embedded adding pressure type screw extractor that can address the above problem.
This utility model adopts following technical scheme: a kind of embedded adding pressure type screw extractor, by metal loop bar (1) and the nested formation of built-in screw rod (2), the afterbody that it is characterized in that metal loop bar (1) is provided with horizontal empennage (3), front end is provided with three Rhizoma Sparganii grooves (4), between built-in screw rod (2) front end and metal loop bar (1), be provided with three elasticity triangular pyramids (5), elasticity triangular pyramid (5) is embedded in three Rhizoma Sparganii grooves (4), between built-in screw rod (2) and elasticity triangular pyramid (5), is provided with screw thread.
The utility model has the advantages that, solved slippage between screwdriver and screw, screwdriver and the unmatched problem of screw model, this utility model is all-metal apparatus, independent high temperature quick sterilization at any time.
Accompanying drawing explanation
Fig. 1 is closed condition structural representation before this utility model uses.
Fig. 2 is that before this utility model uses, closed condition is looked up structural representation.
Softened state structural representation when Fig. 3 is this utility model use.
When Fig. 4 is this utility model use, softened state is looked up structural representation.
In figure: 1, metal loop bar, 2, built-in screw rod, 3, horizontal empennage, 4, Rhizoma Sparganii groove, 5, triangular pyramid.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further described.
A kind of embedded adding pressure type screw extractor, by metal loop bar (1) and the nested formation of built-in screw rod (2), the afterbody that it is characterized in that metal loop bar (1) is provided with horizontal empennage (3), front end is provided with three Rhizoma Sparganii grooves (4), between built-in screw rod (2) front end and metal loop bar (1), be provided with three elasticity triangular pyramids (5), elasticity triangular pyramid (5) is embedded in three Rhizoma Sparganii grooves (4), between built-in screw rod (2) and elasticity triangular pyramid (5), is provided with screw thread.
Claims (1)
1. an embedded adding pressure type screw extractor, by metal loop bar (1) and the nested formation of built-in screw rod (2), the afterbody that it is characterized in that metal loop bar (1) is provided with horizontal empennage (3), front end is provided with three Rhizoma Sparganii grooves (4), between built-in screw rod (2) front end and metal loop bar (1), be provided with three elasticity triangular pyramids (5), elasticity triangular pyramid (5) is embedded in three Rhizoma Sparganii grooves (4), between built-in screw rod (2) and elasticity triangular pyramid (5), is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589939.7U CN203647460U (en) | 2013-09-24 | 2013-09-24 | Embedded pressurization type screw extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589939.7U CN203647460U (en) | 2013-09-24 | 2013-09-24 | Embedded pressurization type screw extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203647460U true CN203647460U (en) | 2014-06-18 |
Family
ID=50913906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589939.7U Expired - Fee Related CN203647460U (en) | 2013-09-24 | 2013-09-24 | Embedded pressurization type screw extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203647460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882049A (en) * | 2019-11-25 | 2020-03-17 | 西安市红会医院 | Medical screw extractor |
-
2013
- 2013-09-24 CN CN201320589939.7U patent/CN203647460U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882049A (en) * | 2019-11-25 | 2020-03-17 | 西安市红会医院 | Medical screw extractor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203647460U (en) | Embedded pressurization type screw extractor | |
| CN202151377U (en) | Novel orthopedic screwdriver | |
| CN203107267U (en) | Orthopedic nail taking device | |
| CN103410832A (en) | Easily-screwed screw | |
| CN203169294U (en) | Bolt holding sleeve | |
| CN204318888U (en) | A kind of medical bone nail | |
| CN202640244U (en) | Multi-head screwdriver | |
| CN202982204U (en) | Multipurpose screwdriver for orthopedics | |
| CN204765895U (en) | Orthopedics set screw follows closely extractor absolutely | |
| CN204562358U (en) | A kind of special pincer for the pressed nail that pressurizes | |
| CN204193968U (en) | Forceps type medical quantitative liquid taking device | |
| CN204379425U (en) | Medically hold nail inner hexagon spanner | |
| CN204618363U (en) | A kind of intra-articular fracture reduction forceps | |
| CN204655042U (en) | A kind of band dentary curet | |
| CN204931725U (en) | A kind of spring opening type Neurology Department checking tool | |
| CN203122577U (en) | Bone plate temporary fixing screw | |
| CN203885580U (en) | Novel surgical knife handle | |
| CN203873864U (en) | Screw for department of orthopaedics | |
| CN203779463U (en) | Tail hammer of multifunctional hammer | |
| CN202843697U (en) | Piercer for orthopedics department | |
| CN203208079U (en) | Orthopaedic piercer | |
| CN203447348U (en) | Universal bone fracture plate | |
| CN203765531U (en) | Locker of plunger pump packing gland | |
| CN202568431U (en) | Screw driver for orthopaedics department | |
| CN202589641U (en) | Screwdriver provided with triangular annular handle and used for orthopedics department |
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: 20140618 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |