CN103932776A - Locking screw for orthopedics department - Google Patents
Locking screw for orthopedics department Download PDFInfo
- Publication number
- CN103932776A CN103932776A CN201410180361.9A CN201410180361A CN103932776A CN 103932776 A CN103932776 A CN 103932776A CN 201410180361 A CN201410180361 A CN 201410180361A CN 103932776 A CN103932776 A CN 103932776A
- Authority
- CN
- China
- Prior art keywords
- locking
- screw
- locking screw
- steel plate
- tail
- 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
- A61B17/862—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the periphery of the screw head
Abstract
The invention discloses a locking screw for the orthopedics department. The locking screw comprises a screw tail and a screw rod. The screw tail is provided with a steel plate locking thread, and the head of the screw rod is provided with an opposite-side cortex locking thread. According to the locking screw, on the basis that the structure and strength of a standard dual-cortex locking screw are kept, elastic locking and fixing are provided by reducing the intensity of a fixture, bone calluses at the two ends of a fracture are made to grow symmetrically, growth of the bone calluses is facilitated, the nonunion rate of the fracture is decreased, and the locking screw has very good clinical application value.
Description
Technical field
The present invention relates to technical field of medical instruments, in especially a kind of bone surgery for the lock screw of locking steel plate.
Background technology
Locking steel plate screw system is the bone fracture internal fixing device that current orthopaedics the most often uses, can effectively prevent becoming flexible, extract and the complication such as fracture of screw, but report in recent years thinks that locking steel plate screw system can limit the activity of fracture site, produce atrophic type bone does not connect, there is quite high nonunion rate, often need to again perform the operation, not only give patient at physiology and cause psychologically burden, and also brought heavy financial burden to family.
Summary of the invention
The object of the invention is to for deficiency of the prior art, propose a kind of resilient offside cortex lock screw.
To achieve these goals, the technical solution used in the present invention is.
A kind of orthopaedics lock screw, comprises nail tail and nail bar, on described nail tail, has steel plate locking screw thread, and described nail rod head end has offside cortex locking screw thread.
When use, by the steel plate locking screw thread on nail tail and locking steel plate locking, the nail offside cortex locking screw thread of rod head end and the locking of the cortical bone of offside.
Advantage of the present invention and beneficial effect are.
The present invention is on the basis of the two cortex lock screw structures of retention criteria and strength, by reducing the intensity of fixture, provide elastic locking to fix, the callus symmetry growth at two ends makes to fracture, promote the generation of callus, the disunion rate that has reduced fracture, has good clinical value.
Brief description of the drawings
Fig. 1 is the structural representation of orthopaedics locked screw of the present invention.
In figure 1, nail tail; 2, nail bar; 3, offside cortex locking screw thread; 4, steel plate locking screw thread.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1.
As shown in Figure 1, a kind of orthopaedics lock screw, comprises nail tail (1) and nail bar (2), has steel plate locking screw thread (4) on described nail tail (1), and the head end of described nail bar (2) has offside cortex locking screw thread (3).
When use, will follow closely steel plate locking screw thread (4) and locking steel plate locking on tail (1), the offside cortex locking screw thread (3) of nail bar (2) head end and the cortical bone locking of offside.
Claims (1)
1. an orthopaedics lock screw, comprises nail tail and nail bar, it is characterized in that: on nail tail, have steel plate locking screw thread, nail rod head end has offside cortex locking screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180361.9A CN103932776A (en) | 2014-05-03 | 2014-05-03 | Locking screw for orthopedics department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180361.9A CN103932776A (en) | 2014-05-03 | 2014-05-03 | Locking screw for orthopedics department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103932776A true CN103932776A (en) | 2014-07-23 |
Family
ID=51180846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410180361.9A Pending CN103932776A (en) | 2014-05-03 | 2014-05-03 | Locking screw for orthopedics department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103932776A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457975Y (en) * | 1999-04-01 | 2001-11-07 | 陈永铵 | Fixing screw with interlocking fixing structure for neck and head of femur |
| CN201743761U (en) * | 2010-08-20 | 2011-02-16 | 中国人民解放军第二军医大学 | Absorbent double end thread compression screw |
| US20120215265A1 (en) * | 2005-02-15 | 2012-08-23 | Apex Biomedical Company Llc | Bone screw for positive locking but flexible engagement to a bone |
| CN202821583U (en) * | 2012-09-27 | 2013-03-27 | 常州鼎健医疗器械有限公司 | Half-thread locking screw |
-
2014
- 2014-05-03 CN CN201410180361.9A patent/CN103932776A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457975Y (en) * | 1999-04-01 | 2001-11-07 | 陈永铵 | Fixing screw with interlocking fixing structure for neck and head of femur |
| US20120215265A1 (en) * | 2005-02-15 | 2012-08-23 | Apex Biomedical Company Llc | Bone screw for positive locking but flexible engagement to a bone |
| CN201743761U (en) * | 2010-08-20 | 2011-02-16 | 中国人民解放军第二军医大学 | Absorbent double end thread compression screw |
| CN202821583U (en) * | 2012-09-27 | 2013-03-27 | 常州鼎健医疗器械有限公司 | Half-thread locking screw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103040514A (en) | Bone fracture plate with combined holes | |
| CN205215333U (en) | Locking external fixation frame plate system is dissected to four limbs length bone fracture | |
| CN204468250U (en) | A kind of hollow pressurization nail | |
| CN202020524U (en) | Clamping connection-type combined inner fixing device | |
| CN204072300U (en) | A kind of bone screw | |
| CN101011290A (en) | Femoral bone tuberosity locking hook plate internal fixation system | |
| CN203841777U (en) | Customized absorbable bone setting device | |
| CN103932776A (en) | Locking screw for orthopedics department | |
| CN103961170A (en) | Assembly type steel plate screw fixing system for department of orthopedics | |
| RU162494U1 (en) | DEVICE FOR OSTEOSYNTHESIS OF FRACTURES OF THE PROXIMAL DEPARTMENT OF THE HUMER BONE | |
| CN205411287U (en) | Self tapping type marrow internal fixation device suitable for long bone fracture | |
| CN203609495U (en) | Poking and hinging device of minimally-invasive poking plastic internal fixing device | |
| JP2016509518A (en) | Veterinary orthopedic kit | |
| CN203089359U (en) | Special-shaped steel plate slide nail extractor for orthopedics | |
| CN209122401U (en) | A kind of femur bilateral fixing steel plate | |
| CN105125266A (en) | Self-tapping intramedullary fixation device suitable for long bone fractures | |
| CN105496527A (en) | Locking external fixation frame plate system for limb long bone and short bone fracture dissection | |
| CN204671259U (en) | A kind of fibula locking bone fracture plate | |
| CN104856751A (en) | Fibula locking bone plate | |
| CN204671261U (en) | A kind of calcaneus locking bone fracture plate | |
| CN204931822U (en) | Locking compress bridge joining composite internal fixation system | |
| CN105640638A (en) | Pedicle screw structure | |
| CN204971550U (en) | Fracture staple | |
| CN103876810A (en) | Medical femoral head taking device | |
| CN204260824U (en) | Vertebral pedicle bolt structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |