CN107397584A - Orthopaedics interior hexagonal inner core anti-skid screw and screwdriver - Google Patents
Orthopaedics interior hexagonal inner core anti-skid screw and screwdriver Download PDFInfo
- Publication number
- CN107397584A CN107397584A CN201610335474.0A CN201610335474A CN107397584A CN 107397584 A CN107397584 A CN 107397584A CN 201610335474 A CN201610335474 A CN 201610335474A CN 107397584 A CN107397584 A CN 107397584A
- Authority
- CN
- China
- Prior art keywords
- screw
- screwdriver
- screw cap
- inner core
- interior hexagonal
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/862—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the periphery of the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
Patented invention of the present invention discloses a kind of orthopaedics interior hexagonal inner core anti-skid screw and screwdriver, it is characterised in that described screw is made up of screw rod, tapering transition section and screw cap, and the inner polygon structure centre of screw cap is provided with interior hexagonal inner core and embeded slot；Described screwdriver is made up of operator handle and cutter head, cutter head section is in hollow interior hexagonal, match with the embeded slot in screw cap, by the close chimeric of cutter head and embeded slot, patent orthopaedics of the present invention interior hexagonal inner core anti-skid screw and screwdriver have be not easy to skid, practical and convenient, advantages of simple structure and simple.
Description
Technical field
Patent of the present invention is related to a kind of medicine equipment, specially a kind of interior hexagonal inner core anti-skid screw and screwdriver suitable for orthopaedics.
Background technology
Fixation is to treat the common methods of limbs fracture in open reduction steel plate screw, the taking-up of fracture inside-fixture is one of common operation of orthopaedics simultaneously, when being fixed in taking-up, the interior hexgonal structure of screw or interior plum-shaped structure are often destroyed and skidding causes to take out difficulty, cause to perform the operation bothersome, laborious, cause patient and the unnecessary psychological burden of family members.
The reason for causing Slipped bolt have it is following some：First, surgical doctor misoperation, rotated when screwdriver fails to be completely fitted with screw, cause the abrasion of screw cap inner groovy to skid；2nd, during bit rotary screwdriver, swing occur causes to skid surgical doctor；3rd, the time is longer in vivo for screw, and biochemical reaction occurs, and causes screw cap recess etch to wear, and increases the probability of skidding；4th, delay takes interior regular time, especially young man's cortex bone sclerotin harder after union, poroma parcel steel plate and screw, causes to skid.
Therefore in view of the above problems, how a kind of Anti-skidding screw used in orthopedics department is provided, is allowed to safe and convenient, while it is those skilled in the art's technical issues that need to address to be not easy skidding.
The content of the invention
The shortcomings that aiming to overcome that prior art of patent of the present invention, there is provided a kind of safe and convenient and be not easy the Anti-skidding screw used in orthopedics department to skid, therefore we devise this orthopaedics interior hexagonal inner core anti-skid screw and screwdriver.
Patent of the present invention is achieved through the following technical solutions：1. an orthopaedics includes anti-skid screw and matching used screwdriver with interior hexagonal inner core anti-skid screw and screwdriver, wherein anti-skid screw is made up of screw rod, tapering transition section and screw cap, described screw rod is oval columnar shape, and described screw cap is short cylindrical shape shape；Described screwdriver is made up of main handle and cutter head, and described main handle is provided with anti-slip tank, and described cutter head is hollow interior hexgonal structure.
2. in patent of the present invention, screw cap diameter is more than described screw rod cross-sectional diameter, described screw cap is provided with inner polygon structure, interior hexagonal inner core is provided with the inner polygon structure centre of screw cap, embeded slot is formed between described inner polygon structure and described interior hexagonal inner core, it is mutually chimeric with described cutter head.
3. the internal diameter of the cutter head is identical with the internal diameter of the screw cap inner polygon structure, the diameter of hollow structure is identical with hexagonal inner core diameter in the screw cap in the cutter head.
4. inner polygon structure described in can be interior hexgonal structure or plum-shaped structure.
The characteristics of patent of the present invention is：Interior hexagonal inner core anti-skid screw is in screw-in and back-out, using supporting screwdriver, after driver bit is mutually chimeric with screw cap embeded slot closely, you can be threaded in or out screw；The specific embeded slot of the specific hollow interior hexagonal configuration and screw cap of driver bit, operator must be such that both are mutually fitted together to when in use to be had an effect in rotary course, the design that both are mutually fitted together to, in bit rotary screwdriver, screw and screwdriver are difficult to swing, so as to reduce the Probability that screw skids in rotary course.
Brief description of the drawings
Fig. 1 is the side view of bolt portion in patent of the present invention.
Fig. 2 is a kind of structure main sectional view of bolt portion in patent of the present invention（Interior hexgonal structure）.
Fig. 3 is a kind of top view of bolt portion（Interior hexgonal structure）.
Fig. 4 is a kind of structure main sectional view of patent screw driver portion of the present invention（Interior hexgonal structure）.
Fig. 5 is a kind of top view of screw driver portion（Interior hexgonal structure）.
Fig. 6 is another structure main sectional view of bolt portion in patent of the present invention（Plum-shaped structure）.
Fig. 7 is another structure main sectional view of patent screw driver portion of the present invention（Plum-shaped structure）.
In figure：1. screw；1.1. screw rod；1.2. inner polygon structure；1.3. interior hexagonal inner core；1.4. embeded slot；2. hollow allen driver；2.1. operate handle；2.2. cutter head.
Embodiment
The embodiment of patent of the present invention is illustrated in conjunction with the accompanying drawings.
Patent of the present invention includes anti-skid screw 1 and matching used screwdriver 2, wherein described screw includes screw rod 1.1 and the screw cap provided with inner polygon structure 1.2, the inner polygon structure centre of screw cap is provided with interior hexagonal inner core 1.3, and embeded slot 1.4 is formed between the inner core and inner polygon structure；Described screwdriver includes operator handle 2.1 and cutter head 2.2 provided with anti-slip tank, and cutter head section is in hollow interior hexagon, and cutter head matches with the embeded slot on screw cap, i.e. the interior hexagonal opposite side of cutter head（Maximum and minimum value）, interior hexagonal depth it is identical with the embeded slot of screw cap, both can mutually be fitted together to, precession and when screwing out screw, it is necessary to make the embeded slot of driver bit and screw cap chimeric close, continue rotation.
Patent of the present invention can also be designed as Fig. 6 and Fig. 7 structural style, i.e. the inner polygon structure of screw cap and supporting screwdriver can be plum-shaped structure.
Claims (4)
1. a kind of orthopaedics interior hexagonal inner core anti-skid screw and screwdriver, including anti-skid screw and matching used screwdriver, it is characterized in that：Described anti-skid screw is by screw rod（1.1）, tapering transition section and screw cap composition, described screw rod（1.1）For oval columnar shape, described screw cap is short cylindrical shape shape；Described screwdriver is by main handle（2.1）And cutter head（2.2）Composition, described main handle（2.1）It is provided with anti-slip tank, described cutter head（2.2）For hollow interior hexgonal structure.
2. screw cap according to claim 1, it is characterized in that：Described screw cap diameter is more than described screw rod cross-sectional diameter, and described screw cap is provided with inner polygon structure（1.2）, interior hexagonal inner core is provided with the inner polygon structure centre of screw cap（1.3）, described inner polygon structure（1.2）With described interior hexagonal inner core（1.3）Between form embeded slot（1.4）, with described cutter head（2.2）It is mutually chimeric.
3. orthopaedics according to claim 1 interior hexagonal inner core anti-skid screw and screwdriver, it is characterized in that：The cutter head（2.2）Internal diameter and the screw cap inner polygon structure（1.2）Internal diameter it is identical, hexagonal inner core in hollow diameter and the screw cap in the cutter head（1.3）Diameter is identical.
4. screw cap according to claim 1, it is characterized in that：Described inner polygon structure（1.2）Can be interior hexgonal structure or plum-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335474.0A CN107397584A (en) | 2016-05-19 | 2016-05-19 | Orthopaedics interior hexagonal inner core anti-skid screw and screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335474.0A CN107397584A (en) | 2016-05-19 | 2016-05-19 | Orthopaedics interior hexagonal inner core anti-skid screw and screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107397584A true CN107397584A (en) | 2017-11-28 |
Family
ID=60394629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610335474.0A Pending CN107397584A (en) | 2016-05-19 | 2016-05-19 | Orthopaedics interior hexagonal inner core anti-skid screw and screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107397584A (en) |
-
2016
- 2016-05-19 CN CN201610335474.0A patent/CN107397584A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171128 |
|
| WD01 | Invention patent application deemed withdrawn after publication |